CA1255884A - Method of manufacturing contact spring sockets - Google Patents
Method of manufacturing contact spring socketsInfo
- Publication number
- CA1255884A CA1255884A CA000477668A CA477668A CA1255884A CA 1255884 A CA1255884 A CA 1255884A CA 000477668 A CA000477668 A CA 000477668A CA 477668 A CA477668 A CA 477668A CA 1255884 A CA1255884 A CA 1255884A
- Authority
- CA
- Canada
- Prior art keywords
- socket body
- annulus
- socket
- contact springs
- mandrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
- H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
- Y10T29/49218—Contact or terminal manufacturing by assembling plural parts with deforming
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49915—Overedge assembling of seated part
- Y10T29/49917—Overedge assembling of seated part by necking in cup or tube wall
- Y10T29/49918—At cup or tube end
Abstract
ABSTRACT OF THE DISCLOSURE
The method relates to manufacturing contact spring sockets with a plurality of radially inward bowed contact springs (9) clamped at one end in an approximately cylindrical socket body (1), formed by a thin-walled deformable sleeve. The straight contact springs, formed by sections of a contact spring wire, are introduced into the socket body and made fast at their front ends to a central head (10) at the front end of a line connector (2) by deformation of the socket material. The free ends of the contact springs (9) are brought into supporting abutment on an annulus (5) at the pin insertion end.
Deformation of the socket body (1) to produce bowing of the contact springs can be omitted if in accordance with the invention an insert ring (6) is introduced into the middle region of the socket body (1), which fits adjacent the interior wall of the socket, subsequently the contact springs (9) are introduced into the socket body, whereby they lie adjacent the insert ring (6), and following on this a mandrel (12), which is conically shaped and whose diameter increases towards its front end, together with the annulus (5) mounted on it, is introduced into the socket body (1) and again withdrawn from the socket body with radial expansion of the annulus (5) which is secured against axial displacement during this while carrying with it the outer ends of the contact springs, and finally the central head (10) is deformed while carrying with it inner ends of the contact springs.
Figure 2.
The method relates to manufacturing contact spring sockets with a plurality of radially inward bowed contact springs (9) clamped at one end in an approximately cylindrical socket body (1), formed by a thin-walled deformable sleeve. The straight contact springs, formed by sections of a contact spring wire, are introduced into the socket body and made fast at their front ends to a central head (10) at the front end of a line connector (2) by deformation of the socket material. The free ends of the contact springs (9) are brought into supporting abutment on an annulus (5) at the pin insertion end.
Deformation of the socket body (1) to produce bowing of the contact springs can be omitted if in accordance with the invention an insert ring (6) is introduced into the middle region of the socket body (1), which fits adjacent the interior wall of the socket, subsequently the contact springs (9) are introduced into the socket body, whereby they lie adjacent the insert ring (6), and following on this a mandrel (12), which is conically shaped and whose diameter increases towards its front end, together with the annulus (5) mounted on it, is introduced into the socket body (1) and again withdrawn from the socket body with radial expansion of the annulus (5) which is secured against axial displacement during this while carrying with it the outer ends of the contact springs, and finally the central head (10) is deformed while carrying with it inner ends of the contact springs.
Figure 2.
Description
~L25588~
This invention relates to a method of manufacturing contact spring sockets with a plurality of radially inward bowed contact springs clamped at one end in an approximately cylindrical socket body, formed by a thin-walled deformable sleeve, wherein straight contact springs, formed by sections of a contact spring wire, are introduced into the socket body from one soc~et end, wherein the fastening in the socket body of the contact springs at their front ends in an aligned state relative to each other, to a central annu:Lar head at the front end of a line connector projecting into the socket body, is achieved by means of deformation of the socket material, and wherein the free ends of the contact springs are brought into supporting abutment on an annulus at the pin insertion end, which is associated with an assembly mandrel passing through it, which is co-axially introduced into the socket body during manufacture, and finally withdrawn from it.
A method of this type which belongs to the state of the art, according to which contact spring sockets of particularly small construction can be manufactured, is described in the West German Patent DE 33 42 T42 C2, which issued October 24, 1985 to Otto Dunkel GmbH Fabrik fur elektrotechnische Gerate and which is not a prior publication. This method uses sleeves with a wall thickness of 0.1 mm, economically prefabricated by drawing, which can easily be deformed from outside.
$~
.
- ~
.' ' -~ ' , ~ , ~ ~ -S5i9~
After introduction of the contact springs the sockets are provided with a radially inward projecting annular indentation at each of two spaced apart regions axially offset relative to the annulus and the annular head respectively. These annular radial indentations press on the contact springs and bow them radially inward.
In this manner contact pins of only about 0.6 mm diameter can be provided with sockets with an external diameter of only about 1.5 mm. Thus an extraordinarily large number of contact spring sockets can be arranged next to each other in a very small space, and thereby high quality multicontact connectors can be produced at low cost.
In this method of manufacture the degree of deformation of the socket body determines the size of the annular indentations and thus the bowing of the contact springs, on which in turn the contact force depends.
It has been shown, that deformation of the socket body to form the annular indentations can be omitted, if in accordance with the invention there is provided a method of manufacturin~
contact spring sockets with a plurality of radially inward ~owed contact springs clamped at one end in an approximately cylindrical socket body, formed by a thin-walled deformable sleeve, wherein straisht contact springs, formed by sections of a contact spring wire, are introduced into the socket body from one socket end, wherein the Lastening in the socket body of the contact springs at their front ends in an aligned state relative to each other, to a central annular head at the front end of a -. .
. . , , ~ . .
~2~51~
line connector projecting into the socket body is achieved by means of deformation of the socket material, and wherein the free ends of the contact springs are brought into supporting abutment on an annulus at the pin insertion end, which is associated with an assembly mandrel passing through it, which is co~axially introduced into the socket body du:ring manufacture, and finally withdrawn from it, characteri~ed by the following method steps:
a) introduction into the middle region of the socket body of an insert ring fitting adjacent the il~terior wall of the socket and projecting with its end edges into.the socket interior, b) introduction into the socket body of the contact springs, whereby they lie adjacent the insert ring and with their front edges they extend into the co-axial annular gap between the interior wall of the socket and the central head of the line connector which proje~ts into the interior of the socket, c) introduction into the socket body of the mandrel, which is conicall~ shaped and whose diameter increases towards its front end, together with the annulus mounted on it, d) withdrawal of the mandrel from the socket body with radial expansion of the annulus which is secured against axial displacement while carrying with it the outer ends of the contact springs until abutment on the interior wall of the socket and e) deformation of the central head while carrying with it the inner ends of the contact springs, as well as f) optionally forming a flange by folding over the outer edge of the contact socket, to secure the annulus.
Because, after these steps have been carried out, the inner end edges of the insert xing press radially inward on the ~, .
.: ~ ' .
' " , ' . :
-- ~ :
' : :
- 3a - ~255~
contact ~prings, these end edges determine the elastic deformation of the contact springs. Their bowing can already be determined relatively easily prior to assembly, which facilitates precision manufacture. The latter can be done particularly swiftly, as expansion of the annular body accompanies the elastic deformation and the so created pin insertion opening in an elegant manner frees a path for a tool for deforming the central head.
It is particularly suitable for rapid deformation of the annular body if the mandrel on withdrawal from the socket body has vibrations transmitted to it to facilitate expansion of the annulus. For this reason it has proved advantageous if the conical mandrel in the region of its greatest cross-section is provided with a diameter which is somewhat smaller than the internal diameter of insert ring ~3 ~
's~ :
. . .
- - - . . . :
.: . , : ~ -~, .
-' ' ~255~84 less twice the diameter of contact springs.
Further details, advantages and features of the invention emerge from the following descr:ipt-ion and the drawing, to which express reference is made as regards a:Ll details not described in the text. There is shown in:
Figures 1 to 3 very schemat:ically the method steps of the method according to the invention to produce a finished socket.
~::
As can be seen from the drawing, the contact spring socket illustrated in Figure 3 comprises an approximately cylindrical socket body 1 in the form of a thin-walled deformable sleeve. This socket .
body 1 is formed as a constructional unit wlth ~line connector 2. At the opposite end the socket body 1 has a flange 3. An annulus~5 abuts îlange 3 and has a central p~n ~nsert~on~open~ng 4.
An insert ring 6 fits adjacent the interior wall of the socket body l in its middle region, which projects with its end edges 7 and~8 ~nto the interior of the socket. A plurality of~contact springs 9 are supported on it. These contact springs 9 are clamped at one end between a central annular head 10 of line ~conne~tor 2 which projects ~ into socket body l~and ~he~ interlor wall ~of the socket body 1. The other ends of the contact spr:ings 9 which faee the pin insertion~elid of sock~t bo(ly I ,Ire Ercely~ ov<~ o I D ~ .1 1 i l~g~ g,ll) I I (lefill(~ )Ol.W~?(`Il the socket body and alln~ s 5. The radially inward bowing of the contact springs 9 illustrated in Figure 3 results from abutment of end edges 7 and 8 of insert ring 6, supported~on the interior wall of the socket, whose internal diameter is smaller than the external diameter ;: ~ ~ ,~ :
.:,, : , : ' . : :, , . , . , - , . . . . .
5 1:2S58~4 of annlllus 5 after expansion. On these two encl edges 7 and 8 whicll are axially offset relative to annulus 5 and central head 10 respectively contact springs 9 abut. They deform them elastically radially inward.
5As can be seen from Figure 3, in the finished contact spring socket the internal diameter of annulus 5 is smaller than the smallest mutual spacing of those bowed contact springs 9 whiçh lie in any one plane passing through the axis of the socket. By reason of the above mentioned dimensional relationships perfect mutual contact is guaranteed, even if a contact pin should be inserted lnto the contact spring socket with its axis slightly offset. The contact springs 9 are then able to accommodate the eccentric position of the contact pin by reason of the displaceability of their contact spring ends.
The drawing schematically ilIustrates the steps used in the - .
- 15 manufacturing method of the invention. Firstly~the socket body 1 is ~; ~ placed ready, after~which the insert ring 6 IS Inserted until it is in the middle region of the socket body.
; In a further step~the contact springs 9 are introduced into the socket body 1 by means~of dellvery apparatus~not shown in detail.
With their front edges they come to lie In the annular space between ~; ~the socket wall and central head 10. Thereby they are positioned - : :
adjacent insert ring 6 aligned substantially parallel.
As is shown; in Figure 2, in a further step an assembly mandrel l2 together with the annu]us mounted on it ~re ;ntroduced into ~: 25 the socket body 1, naolely into the cenlral~ region between the contart ; spring ends. To fac~litate this introduct;on the mandrel ]2 has a conically pointed front end. A con~ically shaped portion of -educing -: ' 6 ~255~184 diameter forms the main part of the mandrel 12 and abuts the region of largest cross-section which has a diameter which is somewhat smaller than the internal diameter of the insert ring less twice the diameter of the contact springs. Approximately at the transition point to cylindrical shaft 14 of the mandrel 12 there is supported annulus S, which at this stage of the method still has an internal diameter which is hardly larger than the external diameter of shaft 14. Annulus S has -a conical section 15 which facilitates abutment of the contact spring ends in the position shown in Figure 2. With its flange 16 which radially extends beyond the contact spring ends, annulus 5 comes to ~ ~ lie below a device associated with mandrel 12, which serves to secure ; annulus 5 against axial dlsplacement when the mandrel is withdrawn in an axial direction from socket body 1. This devlce comprises a hollow cylinder 17 split in a longitudinal direction~ whose front edges come ~; 15 into abutment on the annulus. These two halves of~the hollow cylinder are mounted to be displaceable relative to~each~ other in a radial ;direction, in order aftel introduction of~the ~mandrel 12 into~the socket body 1 to be able~ to check and cover ~annulus 5, before the mandrel 12 is again wlthdrawn.
Annulus S is made of soft copper ~and IS~ thus correspondlng~ly easily deformable and during this it is slowly expanded. This can be facilitated by transmittLng vibrations. Annulus 5 finally with its ; flange 16 comes into abutment with the~ socket wall wwhile carrying with it the ends af socket springs 9. The snnulus has now experienced ~ 25 its maximum expansion antl has a central~pin insertion opening 4 wlth a `: diameter, which corresponds to ths largest~diameter of mandrel 12.
Following on this the outer edge of the socket can be provided . ~ :-: . , -~ .
.. . ..
,, . ~ , 7 ~L25S8~34 with r l,~ e 3 for further securing the annulus 5.
I'hrough the pin entry opening 4, the central head 10 of the line ~,."nector is now so radially cleformed that the contact spring end9 ;1.~ carried with it and come to l-ie against the socket interior wal:l.
I:inally in the finished state shown in Figure 3 the prescribed funct;"lnll tests on the contact spring sockets can be carried out.
: ~ .
- .
:`
. ~ , , . : .
`~ ~ : - ;~' I
:~ . :
.
~ ~ ' :: '' ~ :
... .. . .. : . . : :
~255884 List of reference numeraLs:
1 socket body
This invention relates to a method of manufacturing contact spring sockets with a plurality of radially inward bowed contact springs clamped at one end in an approximately cylindrical socket body, formed by a thin-walled deformable sleeve, wherein straight contact springs, formed by sections of a contact spring wire, are introduced into the socket body from one soc~et end, wherein the fastening in the socket body of the contact springs at their front ends in an aligned state relative to each other, to a central annu:Lar head at the front end of a line connector projecting into the socket body, is achieved by means of deformation of the socket material, and wherein the free ends of the contact springs are brought into supporting abutment on an annulus at the pin insertion end, which is associated with an assembly mandrel passing through it, which is co-axially introduced into the socket body during manufacture, and finally withdrawn from it.
A method of this type which belongs to the state of the art, according to which contact spring sockets of particularly small construction can be manufactured, is described in the West German Patent DE 33 42 T42 C2, which issued October 24, 1985 to Otto Dunkel GmbH Fabrik fur elektrotechnische Gerate and which is not a prior publication. This method uses sleeves with a wall thickness of 0.1 mm, economically prefabricated by drawing, which can easily be deformed from outside.
$~
.
- ~
.' ' -~ ' , ~ , ~ ~ -S5i9~
After introduction of the contact springs the sockets are provided with a radially inward projecting annular indentation at each of two spaced apart regions axially offset relative to the annulus and the annular head respectively. These annular radial indentations press on the contact springs and bow them radially inward.
In this manner contact pins of only about 0.6 mm diameter can be provided with sockets with an external diameter of only about 1.5 mm. Thus an extraordinarily large number of contact spring sockets can be arranged next to each other in a very small space, and thereby high quality multicontact connectors can be produced at low cost.
In this method of manufacture the degree of deformation of the socket body determines the size of the annular indentations and thus the bowing of the contact springs, on which in turn the contact force depends.
It has been shown, that deformation of the socket body to form the annular indentations can be omitted, if in accordance with the invention there is provided a method of manufacturin~
contact spring sockets with a plurality of radially inward ~owed contact springs clamped at one end in an approximately cylindrical socket body, formed by a thin-walled deformable sleeve, wherein straisht contact springs, formed by sections of a contact spring wire, are introduced into the socket body from one socket end, wherein the Lastening in the socket body of the contact springs at their front ends in an aligned state relative to each other, to a central annular head at the front end of a -. .
. . , , ~ . .
~2~51~
line connector projecting into the socket body is achieved by means of deformation of the socket material, and wherein the free ends of the contact springs are brought into supporting abutment on an annulus at the pin insertion end, which is associated with an assembly mandrel passing through it, which is co~axially introduced into the socket body du:ring manufacture, and finally withdrawn from it, characteri~ed by the following method steps:
a) introduction into the middle region of the socket body of an insert ring fitting adjacent the il~terior wall of the socket and projecting with its end edges into.the socket interior, b) introduction into the socket body of the contact springs, whereby they lie adjacent the insert ring and with their front edges they extend into the co-axial annular gap between the interior wall of the socket and the central head of the line connector which proje~ts into the interior of the socket, c) introduction into the socket body of the mandrel, which is conicall~ shaped and whose diameter increases towards its front end, together with the annulus mounted on it, d) withdrawal of the mandrel from the socket body with radial expansion of the annulus which is secured against axial displacement while carrying with it the outer ends of the contact springs until abutment on the interior wall of the socket and e) deformation of the central head while carrying with it the inner ends of the contact springs, as well as f) optionally forming a flange by folding over the outer edge of the contact socket, to secure the annulus.
Because, after these steps have been carried out, the inner end edges of the insert xing press radially inward on the ~, .
.: ~ ' .
' " , ' . :
-- ~ :
' : :
- 3a - ~255~
contact ~prings, these end edges determine the elastic deformation of the contact springs. Their bowing can already be determined relatively easily prior to assembly, which facilitates precision manufacture. The latter can be done particularly swiftly, as expansion of the annular body accompanies the elastic deformation and the so created pin insertion opening in an elegant manner frees a path for a tool for deforming the central head.
It is particularly suitable for rapid deformation of the annular body if the mandrel on withdrawal from the socket body has vibrations transmitted to it to facilitate expansion of the annulus. For this reason it has proved advantageous if the conical mandrel in the region of its greatest cross-section is provided with a diameter which is somewhat smaller than the internal diameter of insert ring ~3 ~
's~ :
. . .
- - - . . . :
.: . , : ~ -~, .
-' ' ~255~84 less twice the diameter of contact springs.
Further details, advantages and features of the invention emerge from the following descr:ipt-ion and the drawing, to which express reference is made as regards a:Ll details not described in the text. There is shown in:
Figures 1 to 3 very schemat:ically the method steps of the method according to the invention to produce a finished socket.
~::
As can be seen from the drawing, the contact spring socket illustrated in Figure 3 comprises an approximately cylindrical socket body 1 in the form of a thin-walled deformable sleeve. This socket .
body 1 is formed as a constructional unit wlth ~line connector 2. At the opposite end the socket body 1 has a flange 3. An annulus~5 abuts îlange 3 and has a central p~n ~nsert~on~open~ng 4.
An insert ring 6 fits adjacent the interior wall of the socket body l in its middle region, which projects with its end edges 7 and~8 ~nto the interior of the socket. A plurality of~contact springs 9 are supported on it. These contact springs 9 are clamped at one end between a central annular head 10 of line ~conne~tor 2 which projects ~ into socket body l~and ~he~ interlor wall ~of the socket body 1. The other ends of the contact spr:ings 9 which faee the pin insertion~elid of sock~t bo(ly I ,Ire Ercely~ ov<~ o I D ~ .1 1 i l~g~ g,ll) I I (lefill(~ )Ol.W~?(`Il the socket body and alln~ s 5. The radially inward bowing of the contact springs 9 illustrated in Figure 3 results from abutment of end edges 7 and 8 of insert ring 6, supported~on the interior wall of the socket, whose internal diameter is smaller than the external diameter ;: ~ ~ ,~ :
.:,, : , : ' . : :, , . , . , - , . . . . .
5 1:2S58~4 of annlllus 5 after expansion. On these two encl edges 7 and 8 whicll are axially offset relative to annulus 5 and central head 10 respectively contact springs 9 abut. They deform them elastically radially inward.
5As can be seen from Figure 3, in the finished contact spring socket the internal diameter of annulus 5 is smaller than the smallest mutual spacing of those bowed contact springs 9 whiçh lie in any one plane passing through the axis of the socket. By reason of the above mentioned dimensional relationships perfect mutual contact is guaranteed, even if a contact pin should be inserted lnto the contact spring socket with its axis slightly offset. The contact springs 9 are then able to accommodate the eccentric position of the contact pin by reason of the displaceability of their contact spring ends.
The drawing schematically ilIustrates the steps used in the - .
- 15 manufacturing method of the invention. Firstly~the socket body 1 is ~; ~ placed ready, after~which the insert ring 6 IS Inserted until it is in the middle region of the socket body.
; In a further step~the contact springs 9 are introduced into the socket body 1 by means~of dellvery apparatus~not shown in detail.
With their front edges they come to lie In the annular space between ~; ~the socket wall and central head 10. Thereby they are positioned - : :
adjacent insert ring 6 aligned substantially parallel.
As is shown; in Figure 2, in a further step an assembly mandrel l2 together with the annu]us mounted on it ~re ;ntroduced into ~: 25 the socket body 1, naolely into the cenlral~ region between the contart ; spring ends. To fac~litate this introduct;on the mandrel ]2 has a conically pointed front end. A con~ically shaped portion of -educing -: ' 6 ~255~184 diameter forms the main part of the mandrel 12 and abuts the region of largest cross-section which has a diameter which is somewhat smaller than the internal diameter of the insert ring less twice the diameter of the contact springs. Approximately at the transition point to cylindrical shaft 14 of the mandrel 12 there is supported annulus S, which at this stage of the method still has an internal diameter which is hardly larger than the external diameter of shaft 14. Annulus S has -a conical section 15 which facilitates abutment of the contact spring ends in the position shown in Figure 2. With its flange 16 which radially extends beyond the contact spring ends, annulus 5 comes to ~ ~ lie below a device associated with mandrel 12, which serves to secure ; annulus 5 against axial dlsplacement when the mandrel is withdrawn in an axial direction from socket body 1. This devlce comprises a hollow cylinder 17 split in a longitudinal direction~ whose front edges come ~; 15 into abutment on the annulus. These two halves of~the hollow cylinder are mounted to be displaceable relative to~each~ other in a radial ;direction, in order aftel introduction of~the ~mandrel 12 into~the socket body 1 to be able~ to check and cover ~annulus 5, before the mandrel 12 is again wlthdrawn.
Annulus S is made of soft copper ~and IS~ thus correspondlng~ly easily deformable and during this it is slowly expanded. This can be facilitated by transmittLng vibrations. Annulus 5 finally with its ; flange 16 comes into abutment with the~ socket wall wwhile carrying with it the ends af socket springs 9. The snnulus has now experienced ~ 25 its maximum expansion antl has a central~pin insertion opening 4 wlth a `: diameter, which corresponds to ths largest~diameter of mandrel 12.
Following on this the outer edge of the socket can be provided . ~ :-: . , -~ .
.. . ..
,, . ~ , 7 ~L25S8~34 with r l,~ e 3 for further securing the annulus 5.
I'hrough the pin entry opening 4, the central head 10 of the line ~,."nector is now so radially cleformed that the contact spring end9 ;1.~ carried with it and come to l-ie against the socket interior wal:l.
I:inally in the finished state shown in Figure 3 the prescribed funct;"lnll tests on the contact spring sockets can be carried out.
: ~ .
- .
:`
. ~ , , . : .
`~ ~ : - ;~' I
:~ . :
.
~ ~ ' :: '' ~ :
... .. . .. : . . : :
~255884 List of reference numeraLs:
1 socket body
2 line connector
3 flange
4 pin insertlon opening annulus 6 insert ring 7 end edge 8 end edge 9 contact springs central head 11 ring gap : - :
12 assembly mandrel 13 front end ; ~ ;
14 cylindrical shaft conical~section; : ~ :~
16 flange ; :
17 : hollow cylinder : : :
, ~: : : :
12 assembly mandrel 13 front end ; ~ ;
14 cylindrical shaft conical~section; : ~ :~
16 flange ; :
17 : hollow cylinder : : :
, ~: : : :
Claims (8)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:-
1. Method of manufacturing contact spring sockets with a plurality of radially inward bowed contact springs clamped at one end in an approximately cylindrical socket body, formed by a thin-walled deformable sleeve, wherein straight contact springs, formed by sections of a contact spring wire, are introduced into the socket body from one socket end, wherein the fastening in the socket body of the contact springs at their front ends in an aligned state relative to each other, to a central annular head at the front end of a line connector projecting into the socket body is achieved by means of deformation of the socket material, and wherein the free ends of the contact springs are brought into supporting abutment on an annulus at the pin insertion end, which is associated with an assembly mandrel passing through it, which is co-axially introduced into the socket body during manufacture:, and finally withdrawn from it, characterized by the following method steps:
a) introduction into the middle region of the socket body of an insert ring fitting adjacent the interior wall of the socket and projecting with its end edges into the socket interior, b) introduction into the socket body of the contact springs, whereby they lie adjacent the insert ring and with their front edges they extend into the co-axial annular gap between the interior wall of the socket and the central head of the line connector which projects into the interior of the socket, c) introduction into the socket body of the mandrel, which is conically shaped and whose diameter increases towards its front end, together with the annulus mounted on it, d) withdrawal of the mandrel from the socket body with radial expansion of the annulus which is secured against axial displacement while carrying with it the outer ends of the contact springs until abutment on the interior wall of the socket and e) deformation of the central head while carrying with it the inner ends of the contact springs, as well as f) optionally forming a flange by folding over the outer edge of the contact socket, to secure the annulus.
a) introduction into the middle region of the socket body of an insert ring fitting adjacent the interior wall of the socket and projecting with its end edges into the socket interior, b) introduction into the socket body of the contact springs, whereby they lie adjacent the insert ring and with their front edges they extend into the co-axial annular gap between the interior wall of the socket and the central head of the line connector which projects into the interior of the socket, c) introduction into the socket body of the mandrel, which is conically shaped and whose diameter increases towards its front end, together with the annulus mounted on it, d) withdrawal of the mandrel from the socket body with radial expansion of the annulus which is secured against axial displacement while carrying with it the outer ends of the contact springs until abutment on the interior wall of the socket and e) deformation of the central head while carrying with it the inner ends of the contact springs, as well as f) optionally forming a flange by folding over the outer edge of the contact socket, to secure the annulus.
2. Method according to claim 1, characterized in that, the mandrel on withdrawal from the socket body has vibrations transmitted to it to facilitate expansion of the annulus.
3. Method according to claim 1 characterized in that, the conical mandrel in the region of its greatest cross-section is provided with a diameter which is somewhat smaller than the internal diameter of insert ring less twice the diameter of contact springs.
4. Method according to claim 2 characterized in that, the conical mandrel in the region of its greatest cross-section is provided with a diameter which is somewhat smaller than the internal diameter of insert ring less twice the diameter of contact springs.
5. Method according to claim 3 characterized in that, the largest diameter of the mandrel is chosen to be equal to the diameter of the central pin insertion opening of the annulus after it has been expanded.
6. Method according to claim 4 characterized in that, the largest diameter of the mandrel is chosen to be equal to the diameter of the central pin insertion opening of the annulus after it has been expanded.
7. Method according to claims 1, 2 or 3 characterized in that, after introduction of the mandrel with the annulus into the socket body a hollow cylinder is used to secure the annulus against axial displacement which hollow cylinder is subdivided into two radially separable halves and whose front edge comes into abutment with the annulus.
8. Method according to claims 4, 5 or 6 characterized in that, after introduction of the mandrel with the annulus into the socket body a hollow cylinder is used to secure the annulus against axial displacement which hollow cylinder is subdivided into two radially separable halves and whose front edge comes into abutment with the annulus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843412877 DE3412877A1 (en) | 1984-04-05 | 1984-04-05 | METHOD FOR PRODUCING CONTACT SPRING SOCKETS |
| DEP3412877.8 | 1984-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1255884A true CA1255884A (en) | 1989-06-20 |
Family
ID=6232791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000477668A Expired CA1255884A (en) | 1984-04-05 | 1985-03-27 | Method of manufacturing contact spring sockets |
Country Status (21)
| Country | Link |
|---|---|
| US (1) | US4614029A (en) |
| JP (1) | JPS60230383A (en) |
| KR (1) | KR920010680B1 (en) |
| AT (1) | AT393186B (en) |
| AU (1) | AU569785B2 (en) |
| BE (1) | BE902098A (en) |
| CA (1) | CA1255884A (en) |
| CH (1) | CH667946A5 (en) |
| DD (1) | DD231900A5 (en) |
| DE (1) | DE3412877A1 (en) |
| DK (1) | DK160114C (en) |
| ES (1) | ES8607638A1 (en) |
| FI (1) | FI75695C (en) |
| FR (1) | FR2562728B1 (en) |
| GB (1) | GB2157100B (en) |
| IT (1) | IT1186857B (en) |
| NL (1) | NL8500970A (en) |
| NO (1) | NO162140C (en) |
| SE (1) | SE453137B (en) |
| SU (1) | SU1658835A3 (en) |
| ZA (1) | ZA852311B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4154382A (en) * | 1978-03-27 | 1979-05-15 | Blackburn James R | Bicycle rack |
| DE3342742C2 (en) * | 1983-11-25 | 1985-10-24 | Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf | Process for the manufacture of contact spring bushings |
| DE3412874C1 (en) * | 1984-04-05 | 1985-08-22 | Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf | Method of manufacturing contact spring bushings |
| DE3412875A1 (en) * | 1984-04-05 | 1985-10-17 | Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf | METHOD FOR PRODUCING CONTACT SPRING SOCKETS |
| DE3608276A1 (en) * | 1986-03-12 | 1987-09-17 | Dunkel Otto Gmbh | CONTACT ELEMENT IN THE FORM OF A CONTACT SPRING SOCKET OR A SPRING PLUG AND METHOD FOR THE PRODUCTION THEREOF |
| US4731034A (en) * | 1987-03-16 | 1988-03-15 | Elco Industries, Inc. | Electrical terminal assembly and method of making the same |
| DE3915644A1 (en) * | 1989-05-12 | 1990-11-15 | Dunkel Otto Gmbh | CONTACT PIN CONTACT SOCKET ASSEMBLY |
| US5203813A (en) * | 1991-08-06 | 1993-04-20 | Airborn, Inc. | Low entry force connector socket method of manufacture |
| FR2685558A1 (en) * | 1991-12-19 | 1993-06-25 | Souriau & Cie | ELECTRIC CONTACT WITH FLEXIBLE BLADE FOR ELECTRICAL CONNECTOR. |
| JP3195181B2 (en) * | 1995-02-17 | 2001-08-06 | 矢崎総業株式会社 | Terminal for charging connector |
| US6767260B2 (en) | 2002-02-28 | 2004-07-27 | Qa Technology Company, Inc. | Hyperboloid electrical contact |
| CA2454438A1 (en) * | 2003-02-07 | 2004-08-07 | Hypertronics Corporation | Connecting device |
| US9458905B2 (en) | 2012-09-20 | 2016-10-04 | Steelcase Inc. | Spring assembly and method |
| CN103199365A (en) * | 2013-03-28 | 2013-07-10 | 深圳巴斯巴科技发展有限公司 | Electric connection jack used for breakover of high-voltage large current and preparation method thereof |
| CN103887682B (en) * | 2013-12-10 | 2016-05-25 | 中国电子科技集团公司第四十一研究所 | A kind of fixture and closing method of realizing the accurate centering closing in of fluting center conductor |
| CN103682946B (en) * | 2013-12-16 | 2015-09-16 | 中国电子科技集团公司第四十一研究所 | A kind of two groove center conductor precision centering closing in fixtures |
| USD787448S1 (en) | 2014-08-18 | 2017-05-23 | Interlemo Holding S.A. | Electrical connector |
| CN104682038B (en) * | 2015-02-09 | 2017-01-04 | 中国电子科技集团公司第二十三研究所 | A kind of heavy-current cable connector contact connected structure |
| USD863221S1 (en) | 2015-09-04 | 2019-10-15 | Interlemo Holding Sa | Illuminable female connector |
| CN108649402A (en) * | 2018-05-18 | 2018-10-12 | 深圳市拙愚科技有限公司 | A kind of high current jack contact and its processing technology |
| CN109638511A (en) * | 2018-12-18 | 2019-04-16 | 江苏万帮德和新能源科技股份有限公司 | A kind of limit property hat spring mounting structure that is good, facilitating fractionation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH340878A (en) * | 1956-02-23 | 1959-09-15 | Neidecker Rudolf | Electrical plug-in contact device with a plurality of curved contact springs arranged in a ring in the form of wires |
| DE1082957B (en) * | 1957-03-06 | 1960-06-09 | Heinrich Hamm | Method and device for producing electrical sliding contacts, the contact jacket of which consists of resilient contact wires |
| DE1415491A1 (en) * | 1958-02-21 | 1968-10-03 | Schaltbau Gmbh | Method and device for the mechanical production of spring cages with spring ends clamped on one side in an annular groove |
| FR1267457A (en) * | 1958-02-21 | 1961-07-21 | Schaltbau Gmbh | Method and device for the mechanical manufacture of spring bundles for contact members, these springs being embedded, at one end, in an annular groove |
| DE1263893B (en) * | 1966-04-07 | 1968-03-21 | Otto Dunkel | Method for manufacturing an electrical connector |
| FR1541950A (en) * | 1966-11-09 | 1968-10-11 | Otto Dunkel G M B H Fabrik Fue | Method of manufacturing elastic basket contacts |
| DE3342742C2 (en) * | 1983-11-25 | 1985-10-24 | Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf | Process for the manufacture of contact spring bushings |
| DE3412875A1 (en) * | 1984-04-05 | 1985-10-17 | Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf | METHOD FOR PRODUCING CONTACT SPRING SOCKETS |
-
1984
- 1984-04-05 DE DE19843412877 patent/DE3412877A1/en active Granted
-
1985
- 1985-03-27 CA CA000477668A patent/CA1255884A/en not_active Expired
- 1985-03-27 ZA ZA852311A patent/ZA852311B/en unknown
- 1985-03-29 AU AU40532/85A patent/AU569785B2/en not_active Ceased
- 1985-04-01 US US06/718,446 patent/US4614029A/en not_active Expired - Fee Related
- 1985-04-01 FR FR858504928A patent/FR2562728B1/en not_active Expired
- 1985-04-01 KR KR1019850002174A patent/KR920010680B1/en not_active IP Right Cessation
- 1985-04-01 SE SE8501612A patent/SE453137B/en not_active IP Right Cessation
- 1985-04-02 NL NL8500970A patent/NL8500970A/en not_active Application Discontinuation
- 1985-04-02 SU SU853872002A patent/SU1658835A3/en active
- 1985-04-02 BE BE0/214773A patent/BE902098A/en not_active IP Right Cessation
- 1985-04-02 DD DD85274764A patent/DD231900A5/en not_active IP Right Cessation
- 1985-04-02 NO NO851360A patent/NO162140C/en unknown
- 1985-04-02 IT IT12470/85A patent/IT1186857B/en active
- 1985-04-03 AT AT1007/85A patent/AT393186B/en not_active IP Right Cessation
- 1985-04-03 FI FI851347A patent/FI75695C/en not_active IP Right Cessation
- 1985-04-03 ES ES541919A patent/ES8607638A1/en not_active Expired
- 1985-04-03 DK DK155385A patent/DK160114C/en not_active IP Right Cessation
- 1985-04-03 CH CH1449/85A patent/CH667946A5/en not_active IP Right Cessation
- 1985-04-04 GB GB08508928A patent/GB2157100B/en not_active Expired
- 1985-04-04 JP JP60070139A patent/JPS60230383A/en active Granted
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1255884A (en) | Method of manufacturing contact spring sockets | |
| FI71042C (en) | FOERFARANDE FOER FRAMSTAELLNING AV KONTAKTFJAEDERHYLSOR | |
| US4693002A (en) | Method of manufacturing contact spring procedure | |
| AU7640481A (en) | A method for obtaining an accurate concentric fastening of anoptical fibre in a connector | |
| US3894785A (en) | Connector | |
| CA1255882A (en) | Method of manufacturing contact spring sockets | |
| DE69928098T2 (en) | Process for making a glass fiber mandrel contact | |
| US4150251A (en) | Screw-on wire connectors | |
| US6105248A (en) | Method of forming polymer insulator | |
| KR930000795B1 (en) | Contact-spring sockets and process for making them | |
| CN1007684B (en) | Method of mfg. socket comprising contacting springs | |
| JPS60237410A (en) | Construction of connecting sleeve for optical connector | |
| SU626851A1 (en) | Self-setting mandrel for pipe drawing | |
| CA1165343A (en) | Hose connectors and methods for making and applying same | |
| SU707645A2 (en) | Die for sizing the openings of single-row lattices of the honeycomb type | |
| JPS5822332B2 (en) | Kanagata Souchi | |
| JPH0747575A (en) | Device for dealing with undercut release for protrusion | |
| JPS642738A (en) | Production of sleeve for reinforcement joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |