EP0923993A1 - Fluid dispenser - Google Patents

Abstract

A dispenser for fluids, or powders, has a cylindrical shape comprising a reservoir (7) and a dispensing nozzle (3). A release lever (15) is hinged on one side to be operated by finger pressure, with a thumb grip recess (72) on the other side of the dispenser. The lever action release operates a linkage to an axially moving valve element (6) inside the dispenser. The lever action can also operate an integral pump.

Description

The invention relates to a donor. With it, liquid, powdery, gaseous and / or pasty media ins Free are given. The medium becomes one Media outlet replaced by the donor. The donor is with to carry the same single hand and for media delivery to operate. A pump, the valve, can be used as the discharge conveyor a pressure container such as an aerosol container or the like be provided. The medium can be atomized at the media outlet or as an unsprayed jet or drop or strand be delivered.

A small dispenser with an axial stroke of less than 5 mm or 3 mm and a largest outside diameter of less than 25 mm, 20 mm or 18 mm preferably has one Handle that is not parallel to the axis of the dispenser, but to be pressed manually across it. This movement of the Handle becomes an axial movement of an actuating plunger converted. With such donors are the individual Components very small. This makes them against mechanical Stress sensitive and difficult to support. Know the donor has an irregular outer surface over its length on that graduated several times on the outer circumference or in the handle area is, the handling and stowing of the Donors in a pocket may be difficult.

The invention has for its object to a donor create the disadvantages of known training or of the type described are avoided. In particular, the Dispenser with the smallest dimensions, high mechanical stability to have. Its functions should be safe and accurate. It is intended to be easy to use and ergonomically convenient Ensure handling.

According to the invention, means are provided to open the plunger a length radially and / or secured against rotation lead that is larger than half the plunger diameter is. The plunger guide can be in the area of the coupling connection between handle and tappet and / or upstream immediately afterwards. The leadership expediently takes place directly on the inner circumference of the outermost Mantle wall of the base body. The guide part of the ram can form a stop for the actuated end position is from the starting position. This stop can striking an end face of the pump housing, in which the plunger protrudes permanently.

The dispenser shows the majority of its use Length, especially over more than two thirds or three Quarter of this length, constant outside width. This vastness is only reduced in the area of the discharge head. About these Only the handle protrudes radially outwards. The Total length of the donor is at least five, seven or eight times larger than its outside width. Within the length with media coverage is at least around constant outside width half longer than the basic body. This constantly wide Outer circumference extends over a length of at least 8 cm or 10 centimeters. So the outer circumference forms a favorable when pressed Gripping surface. All fingers of the user's hand can be attached to it be supported by enclosing. A removable cover for the discharge head closes with the above External width directly to the base body and the handle on.

The aforementioned, constantly wide peripheral surface of the pin-shaped Spenders is only broken into sections, the one Take up part of the length and part of the circumference of the body. In these sections is the peripheral surface opposite the consistently offset wide areas. These sections can have a window opening for the intervention of the handle, an inclined surface for the operated handle or one of the handle turned away, deepened finger cavities.

The cover cap for the discharge head reaches into the inner circumference of the basic body. The cap has an inclined surface. It is opposite a conical end face of the base body or the handle clamped. The sloping surface locks the Handle in the starting position against actuation. In the Starting position is the handle over the outer circumference of the Base body radially at most by a third or half the constant outside width mentioned. The handle lies in any position at a distance from both ends of the base body and between these ends. So the handle can Do not cover memory.

The discharge head has a one-piece, elongated cap on. It is in its end wall from a nozzle channel or Media outlet penetrated. From the inside of this bulkhead a separate nozzle core extends only upstream. It forms a structural unit with the plunger. The nozzle core lies inside the head cap on most of its length non-contact. The plunger and core are one Exhaust passage penetrated. It is of circular shape in cross section deviatingly flat. The length of this cross section is compared to the width of this cross section by at least that Half or double larger. The length of this cross section is at least as large as or larger than the outside width of the core body. The channel penetrates in the area of the narrow sides its cross section an outer end wall, of which the core body runs out of. In addition, the channel forms on Outer circumference of the core body and following this end face Openings. Through them the medium of Inside the channel to the outer periphery of the core body emerge.

The openings extend to the inside of a front wall. With the outside of the core body is immediately adjacent to the front wall of the head cap or to the inner end of the Nozzle channel. Introduces from each opening of the core body Axial channel to the outside of the end wall of the core body. From there, a cross channel is directed to the nozzle channel. All mentioned channel sections are each tight over the circumference closed. The passage of the canal through the front wall and are all downstream channel sections limited in two parts, namely by the plunger and the head cap. Upstream of it and into the pressure chamber of the pump the channel lies completely inside the tappet. This limits the channel in one piece over the circumference. So can Smallest dosing quantities applied very precisely and at the same time very fine be atomized.

For inclusion in the invention is due to further features and effects on DE-OS 196 10 456 referenced.

Fig. 1

einen erfindungsgemäßen Spender in teilweise geschnittener Seitenansicht;

Fig. 2

Teile des Spenders in Ansicht von rechts gemäß Fig. 1 und in explodierter Darstellung sowie

Fig. 3

eine Axialansicht auf den Düsen-Kernkörper in wesentlich vergrößerter Darstellung.

These and further features of the invention are also apparent from the description and the drawings, the individual features being realized individually or in groups in the form of sub-combinations in one embodiment of the invention and in other fields and representing advantageous and protectable designs for which protection is claimed here. Embodiments of the invention are shown in the drawings and are explained in more detail below. The drawings show:

Fig. 1

a dispenser according to the invention in a partially sectioned side view;

Fig. 2

Parts of the dispenser in a view from the right according to FIG. 1 and in an exploded view as well

Fig. 3

an axial view of the nozzle core body in a substantially enlarged view.

The dispenser 1 has two units 2, 3. They become Discharge operation and to effect the discharge pressure of the Medium moved axially against each other. A third unit 4 becomes transverse to units 2, 3 or in a circular arc path emotional. The unit 2 has a sleeve-shaped Base body 5. The unit 3 has a base body Ram 6 on. A memory belongs to the dimensionally stable unit 2 7 and the housing of a discharge conveyor, such as a push piston pump 8. A discharge head 9 belongs to unit 3. It lies at the end of the body facing away from the store 7 Training as a disposable discharge device can be the memory be formed by the pump housing. The memory will then completely by a stroke in only one direction emptied without a return or suction stroke being required. All parts of units 2, 3 are in a common Axis 10. Compared to axis 10, unit 4 is partial eccentrically arranged. The medium flows through the dispenser 1 substantially parallel to axis 10 in direction 12 to free end of the head 9, that is downstream. In opposite Direction 13 becomes the head 9 when actuated withdrawn from unit 2, 5. Unit 4 forms a handle 15. It is in the figures 1 and 2 in shown the starting position. The handle is used for actuation 15 pivoted about an axis 11. This will handle 15 acute angled backwards in the direction of 14 the body 5 approximated. The axis 11 is perpendicular to the axis 10 and on the side facing away from the handle 15 Axis 10 and inside the body 5. The handle 15 is bowl-shaped.

The unit 4 has one from the inside of the handle 15 freely protruding driver 16. It is radial in the Body 5 used and in one piece with the unit 4, 15th educated. On the plunger 6 is a straight counter member 17 for the driver 16 provided. Whose pivotal movement generated a movement of the unit 3 in the direction of 13. The one-piece Body 5 has a jacket wall 18. The body 5 points an end wall 19 within the jacket 18. It lies with Distance between the ends and closer to the downstream lying end of the wall 18. As a result, the body 5 forms a Cap. Part of the store 7, the pump 8, is located in it and the links 16, 17. The driver 16 is immediately adjacent to the inside of the wall 19. On the driver 16 connects the counter member 17 upstream. Upstream of which the pump 8 and the accumulator 7 connect. In the Storage 7 projects the pump 8 with most of it Length of housing.

The free end face of the head 9 is from a media outlet 20 enforced. It is a nozzle opening 20 of less than half a millimeter in diameter. It is through the outside End of a straight nozzle channel formed. It's in Direction 13 funnel-shaped. This channel penetrates an end wall 22. It closes only in the direction of 13 Shell wall 21 in one piece. The medium leaves the opening 20 as a finely atomized cone jet. The head 9 is in Tapered towards 12. So it's for insertion into a body opening, for example a patient's nostril, suitable. The slimmer end section of less than 7 mm Diameter protrudes into the nostril. Of the subsequent expanded section closes the nostril. When actuated, the opening 20 in the nostril and withdrawn towards unit 2. This will the closure of the nostril through the enlarged section of the jacket 21 opened and the medium is over a greater length of the nasal channel distributed.

The pump 8 has a two-part housing 23. From that upstream end a riser pipe 24 extends to Bottom of the store 7. Downstream connects to the riser pipe an inlet valve 25, for example a ball valve. It closes and opens the tube 24 depending on pressure Pressure chamber 26. The pressure chamber 26 is from a piston unit 27 or the piston 28 limited. It lies opposite the valve 25. The unit 27 has, in addition to the sleeve-shaped piston 28 a piston core 29. It penetrates the piston 28 completely. The housing 23 consists of a longer housing jacket 30 and a lid-shaped end part 31. The is with the downstream end of the jacket 30 through a snap connection firmly connected. On the inner circumference of the Shell 30 slides the piston 28 and puts the movable Valve body of the valve 25 on. The piston 28 faces downstream end an elastically shortenable Piston neck on. The piston 28 forms with the core 29 self-closing exhaust valve 32.

The valve 32 opens at a predetermined pressure in the Chamber 26 or at the stroke end by abutment of the piston 28 an inner shoulder of the jacket 30. A in the jacket 30 in Forms in the direction 13 protruding sleeve part of the lid 31 with the piston 28 a valve 33 for venting the memory 7. The inner circumference of the piston 28 forms the movable Valve closing surface 32. The outer circumference of the piston 28 forms the movable closing surface of the valve 33 Valve 33 is tightly closed in the initial position opens at the beginning of the piston stroke. Following the lid 31, the jacket 30 of three is uniform over the circumference distributed openings 34 penetrated. Opposite the openings 34, the pressure chamber 26 is always sealed. The openings 34 are in the same axial area as the valves 32, 33. The Tappet 6 passes through the lid 31 Outside circumference of the plunger 6 from outside the dispenser 1 air flow up to valve 33. When valve 33 is open, it flows the air through openings 34. Then it flows along the Outside of the jacket 30 and in the memory 7. At overpressure in the memory 7 this air can also be in the opposite Emanating direction.

The housing 23 or the one-piece cover 31 has one Flange 35 on. It projects outwards and is ring-shaped. With the flange 35 is the pump 8 or an intermediate member 36 supported and braced on one end face. This area is provided on a narrowed neck 37 of the storage bottle 7. The neck 37 closes the belly 38 via an annular shoulder on. The upstream end of the jacket 18 can be against them to be excited. At this end, the body 5 has an internal thread on. It engages in an external thread of the neck 37 and it braces the pump 8. The annular member 36 has an annular flange between the flange 35 and the neck 37 on. Of this, a coat only protrudes in the direction of 13. This jacket surrounds the openings 34 or the jacket 30. The link 36 has ribs. They are used for Centering of the jacket 30 and stand over its inner circumference in front.

On the inner circumference, the jacket 18 is at least six, eight or provided ten longitudinal ribs 39. You are evenly over distributed the scope. The ribs 39 center in a corresponding manner Way the cover 31 downstream of the flange 35. Die upstream ends axially of the ribs 39 are against the Flange 35 clamped. The outside diameter of the belly is 38 over its entire length equal to the outer diameter of the Jacket 18. The belly 38 can be made of transparent material exist or have a window. So the degree is Filling with the medium can always be seen from the outside. The largest width of the unit 4 and the handle 15 is according to 2 at most as large as the diameter of the jacket 18th The widest area of the handle 15 extends over an angle of more than 100 ° and less than 180 ° around the Axis 10, especially over 125 °. The memory 7 can be non-destructive removed from the body 5 and refilled with medium become.

The plunger 6 is made up of a plurality of five plunger parts assembled. They follow one another in the longitudinal direction. This one each connecting via an axial connector Tappet parts can also be formed in one piece with one another be. E.g. is a one-piece plunger 41 to 44 and / or 40, 42, 43 appropriate. The core 29 forms the upstream lying end of the plunger 6. The core 29 has a shaft that protrudes downstream over the piston 28. On this A stem part of the same length adjoins 41. In its The core shaft intervenes. The part 41 points downstream a reduced shaft section. That is in that Inserted inside a longer plunger part 40. The downstream end of this part 40 encompasses the Outside of the shortest tappet part 42. This engages in the inside of the next and longest tappet part 43 on. The mutually facing ends of both tappet parts 40, 43 are immediately adjacent to each other. In one piece Training takes the outer width of the plunger 6 in the direction 12th Outside width always from and not to. The downstream end of the Part 43 forms a core body 44 for the nozzle cap 21, 22. The end face of the body 44 is, if necessary, under the axial Tension, on the inside of the end wall 22.

The length of the core 44 is at most as long as Diameter. The takes in the direction of 12 or 13 among a few Degrees of angle conically. Towards 13 joins the core 44 an extended plunger section 45. To the closes in Direction 13 a further expanded section 46 and then an expanded sleeve. The latter takes part 42 and is not shown in Fig. 3. The transition between the Sections 44, 45 is through a flat annular shoulder 47 educated. Section 45 connects to them via a cone 48, which is narrowed in the direction of 12 at an acute angle. All Sections of part 43 are integral with each other educated. The part 43 is penetrated by a channel 49. 3 is flat rectangular and has about the axis 10 concave curved narrow sides. The length of this channel cross section is at least in relation to its width twice the size or half of it. Furthermore, this length at least as large as the outer diameter of the core 44. As a result, the channel 49 occurs only in the area of its narrow sides on the end face 47. The channel 49 forms in this partially annular openings 50. They are about the axis 10 curved and are opposite each other on both sides of the axis 10. At the same time, openings 51 of the channel 49 occur Outer circumference of the core 44. The openings 51 are apart turned away. The openings 51 are the same width as that Openings 50 or narrower. Two openings 50, 51 each close together at an angle. The channel 49 and the openings 51 reach up to an inside. She is on one End wall 52 of the core 44 is provided and from the end face 47 removed. The thickness of the end wall 52 is smaller than that Outer diameter of the core 44 or half thereof. Of the Outer diameter of the core 44 is less than 4 mm or 3 mm.

1, the width of the opening 51 in Direction 13 narrowed at an acute angle. Channel 49 is at the manufacture of part 43 from injection molding with a mandrel or mandrel. This results in the shape of the Opening 51 only through the taper of the core 44. The Mold core simultaneously creates openings 50, 51 and Inside of the wall 52. Because of the openings 51 is the wall 52 connected to section 45, 48 only by two legs, who face each other. Bulge at axial tension these legs radially outwards. This will make the Legs pressed tightly against the inner circumference of the jacket 21. Only each of the sections 45, 48, 56 is still with its entire circumference and its entire length on the inner circumference of the jacket 21 over the entire surface and sealed. Of the compared to these sections at least twice longer Section 46 is completely contact-free in the jacket 21. The parts 29, 41, 40, 42, 43 are connected to one another with tensile strength, for example by gluing, welding or snap connections. The core 29 except all these tappet parts inside of continuations of the channel 49 or of central longitudinal channels penetrated.

One closes at the downstream end of each opening 51 Longitudinal groove 53, which is the same width as the opening 51. she is a shallow depression 53 in the outer circumference of the core 44 intended. On its open side, the groove 53 is from the inner circumference of the jacket 21 tightly covered. The groove 53 forms the opening 50 a flat channel, the same cross sections as has the opening 50. This flat channel is on the associated one Flat side and only at the upstream end of the opening 51 enforced. The opening 51 extends to the end wall 52.

Downstream of opening 51 is said flat side of penetrated a transverse channel 54. That is through a groove 54 in formed on the outside of the wall 52. The open side of the groove 54 is tightly covered from the inside of wall 22. Of the Channel 54 has in relation to openings 50, 51 and Channel 53 much smaller passage cross sections. The channel 54 opens into an enlarged chamber 55 towards axis 10. This is formed by a circular recess, which is provided in the outside of the wall 52. Chamber 55 has the same diameter as the inner end of the nozzle channel, that is expanded. The nozzle channel and the chamber 55 are coaxial. The channels 54 open tangentially and in opposite directions in the chamber 55. The mouths are laterally offset from each other. This is the medium set in a rotary current and flows through the rotating Nozzle channel.

At the upstream end, the jacket 21 has one or several cams or ring beads 57 over his Protrude outside circumference. The head 9 is on with the cams 57 centered, sealed and an inner periphery of the unit 2 slidably guided. At the downstream end, the Body 5 two jacket walls 58, 59 on. You lie with Radial distance into each other and are in the direction 12 from the Wall 19 off. The inner jacket 58 projects further than that Outer jacket 59. Its outer circumference forms a continuous Continuation of the constant outer circumference of the jacket 18. In the jacket 58 is a sleeve-shaped intermediate piece 60 used. It can also be formed in one piece with the body 5 be. Part 60 strikes axially on the jacket in direction 13 58 at. A sleeve section of part 60 is in the direction 12 over the jacket 58 before. On the inner circumference of the sleeve section the member 57 slides sealed. The tappet parts 40, 43 can inside the shell 58 or on the inner circumference of the Part 60 be supported against radial movements. Part 60 is attached by press fit in the jacket 58. The coat 21 is always in the direction 12 at a distance from the unit 4 or the handle 15.

The axis 11 is formed by a bearing 61. It is a Cutting edge bearings. Its bearing edge is through an acute-angled one Corner zone of the driver 16 is formed. The associated Bearing shell is flanked at right angles and through the inside the wall 19 and the longitudinal edge of a bearing rib educated. This connects to the wall 19. The distance between axes 10, 11 is slightly smaller than that Radius of the curved inner circumference 62 of the jacket 18. An the ribs 39 adjoin this inner circumference. The rib height the bearing shell is smaller than the height of the ribs 39 Bearing ribs are significantly shorter than the ribs 39. The bearing ribs directly adjoin one of the two Ribs 39 on. The latter permanently engages in a groove 65 of the Driver 16 a. The driver 16 has a projection 64 on the end provided by the handle 15 turned away. 2, the width of the protrusion is 64 reduced. The groove 65 is provided in the projection 64. Between the projection 64 and the handle 15, the widened section of the driver 16 a passage for the plunger 6 or the part 40. Parts 6, 40 and Units 7, 8 are in the direction 12 in the body 5 as well as the Unit 4 used.

The sleeve-shaped part 40 is in one piece with the counter members 17 trained. There are two of them facing away from each other Sides as crossbars over the outer circumference of the sleeve. In 1, the links 17 are not above the Outer circumference of the sleeve. The links 17 are closer to upstream than at the downstream end of the sleeve 40. At the ends, the crossbar has cams 66 which in Project in the direction of 12 and narrower than the crossbar are. Each cam 66 is between two adjacent ribs 39 guided and secured against rotation. The cam 66 overlaps the Driver 16 laterally at a distance. Between the cam 66 and the opposite outer circumference of the sleeve 40 forms that Counter member 17 the straight edge or sliding surface. It's because of her the web-shaped cam 74 of the driver 16, namely between the axis 10 and the handle 15 and within the Jacket 18. The driver cam 74 is permanently with Compressive stress. Movements of the handle 15 in the direction of 14 immediately cause unit 3 to move in the direction of 13. The unit 3 includes the components 6, 9, 27. The unit 4 is made in one piece. Part 40 is sufficient in the starting position from the cover 31 through the driver 16 to the Coat 58 inside. The part 40 is in the direction 12 over the Unit 4 before. The crossbar forms radially within the Cam 66 and on both sides of the sleeve 40 the surfaces 17, namely two aligned, rounded edges.

The handle 15 is curved around the axis 10 as a shell. Your Latitude increases towards 13 over most of its length to and then off again. This is between the ends side wings less than 1 mm thick. The Wings are when applied to the outer circumference 63 of the shell 18 spring spread. This increases the width of the handle 15 to. The thickness mentioned increases to the middle of the width of the Handle 15, including in this middle area of the driver 16 is dimensionally stable. The driver 16 connects to this area, which has a thickening 67 is reinforced. This projection 67 connects upstream the driver 16. The projection 68 of the unit 4 is shown in FIG Direction 12 over the driver 16 before. The protrusion is 68 resiliently expandable. It permanently encloses the outer circumference 63 tight on an arc angle that is smaller than that of Sash is or is at most 100 °. The protrusion is 68 bowl-shaped and curved about the axis 10.

At the downstream end, the projection 68 has on it Inside a protruding cam 69. It is in Starting position on the end face of the shell 59. Of the Cam 69 and the jacket 59 have the same radial distance from Sheath 58. In the end surface 59 is a recess 75 (Fig. 2) provided. The sloping end section of the Projection 68 including cam 69. By the Cam 69 is the unit 4 in the starting position according to Art secured by a snap connection. The frictional thus formed Locking is only after application of a correspondingly high actuation force overcome with snap and creates a clicking sound. The jacket is 18 perforated by a rectangular window 70. It’s just enough to the inside of the wall 19. Through the window 70 is the Driver 16 used radially across the axis 10. Of the upstream transverse boundary of the window 70 goes flat inclined surface 71 of the outer circumference 63. Area 71 moves away from axis 10 in direction 13. The complementary The inclined surface of the reinforcement 67 is against the surface 71 applied over the entire surface when the handle 15 is actuated End position.

The handle 15 permanently covers the opening 70 completely from. The opening 70 and the driver 16 are of equal width, however, much narrower than the handle 15. Around the axis 10 extends the window 70 over an arc angle of less than 90 °. The circumference 63 has a depression 72. she lies on the side facing away from the handle 15. This Kuhle 72 extends over an arc angle of more than 100 ° and less than 120 °. Its depth increases at the downstream End steeper than at the upstream end. In the Kuhle 72 can support the thumb or index finger be, depending on whether the handle 15 with the index finger or operated with the thumb. The inner circumference 62 goes also in the area of the hollow 72 with a constant width. As a result, the jacket 18 is essential in this area less than 1 mm thick.

The driver 16 is in the views according to Figures 1 and 2 flat plate-shaped. It increases in thickness according to FIG. 1 only between the axis 10 and the handle 15 too. The passage 73 of the driver 16 is penetrated by the plunger 6, 40. This opening 73 is elongated. The width of this slot 73 lies in the sectional plane according to FIG. 2 and is almost free of play on the associated diameter of the section 40 adjusted. The length of the elongated cross section 73 is in the right-angled sectional plane according to FIG. 1. In the The starting position is that which is removed from the handle 15 End of the elongated hole 73 parallel to the axis 10. Here is and the end facing the handle in the direction 13 from the axis 10 inclined at an acute angle. In the area of the latter end the oblique cams 74 lie on both sides of the elongated hole 73. They slide on the counter cam 17. The projection 68 points an end surface 76. It is an inclined surface in the direction 13 extends conically and lies on the radial outside of the Cam 69. If the cam 69 in the cutout 75 of the Coat 59 engages, the surface 76 forms a continuous Continuation of the similar end or inclined surface of the Coat 59.

In the direction 13, a counter member 77 can be against the surface 76 be axially clamped. There is slightly radial resilience after. The counter member 77 is ring-shaped about the axis 10 by. It is therefore in the same way against the end face of the Coat 59 stretched. Link 77 closes this end of the Jacket 18 and the unit 4 tight. From the inside of the Link 77 stands over its front clamping surface in Direction 13 a sleeve-shaped member 78 in front. It has a two-start external thread with an internal thread 79 des Mantle 59 is screwed. For screwing as well as All you have to do is loosen a turn of no more than 180 ° or 90 °. Of the Inner circumference of the sleeve 78 can be sealed on the outer circumference of the Coat 58, 60 fit. The links 77, 78 can be in one piece be formed with a cap-shaped cover 80. Of the takes the head 9 including the coats 58, 60 completely opens and closes the opening 20 tightly. The lid 80 locks the unit 4 without play against actuation and braced it radial to axis 10.

After removing the cover 80, the handle 15 is in the direction 14 operated by finger pressure. The cam 69 snapped. As a result, the plunger 6 moves in immediately Direction 13 and the piston 28 sets the chamber 26 filling Medium under pressure. This causes the valve 25 in Clamped position. After an axial stroke between 2 mm and The valve 32 opens 3 mm. The medium then flows between Piston 28 and core 29 in direction 12 in the tappet sections. Only at the openings 15, 51 does the medium occur axially and radially out of the plunger 6. The medium is then inside the chamber 55 rotated and then at the boundary edge the opening 20 atomized. On the last part of the way of the stroke results in addition to the progressive force Return spring 81 a steeply increasing actuating force, because the wings of the handle 15 widened on the circumference 63 Need to become. The spring 81 lies within the chamber 26 and is permanently supported on the core 29 with axial preload. At the end of the stroke, valve 32 closes again automatically. After release, the resilient wings lift the handle 15 with the cams 74 initially from the link 17. At the same time the spring 81 provides the unit 3 and also the unit 4 limited starting position. This opens the Valve 25 by negative pressure in the chamber 26. Therefore, at closed valve 32 via channel 24 from memory 7 Medium sucked into the chamber 26.

For assembly, the pump 8 including the ring 36 to used in the body 5 for stop in the direction 12 become. The entire plunger 6 can be in the same direction through the passages in the driver 16, in the wall 19, in the Sleeve 60 and 9 are used in the head. The illustrated Dimensions or proportions are for the use of the donor 1 particularly cheap. All components can be made of plastic exist and be injection molded parts. All properties and Effects can be precise or only roughly or essentially be provided as described, but for corresponding Applications also deviate more from it. None of the above Characteristics must be provided. Except for the wings the handle 15, the piston 28 and the spring 81 is in Operation of each of the components or component sections mentioned dimensionally stable.

Claims (10)

Dispenser for media with a basic body (5), the one Forehead (19) and defines a central axis (10) and / or a media store (7) and one Discharge conveyor (8), such as a pump, the Basic body components (5) are assigned as one Actuation handle (15) with a driver (16) Discharge head (9) with a media outlet (20), an actuating plunger (6) for engagement of the driver (16) o. Like., In particular the plunger (6) between the Forehead (19) and the discharge conveyor (8) opposite the Centered body (5) and / or the handle (15) is led. Dispenser according to claim 1, characterized in that the Tappet (6) opposite the handle (15) and / or opposite the base body (5) is secured against rotation that in particular the plunger (6) directly on the base body (5) is guided, and that preferably the plunger (6) via a sliding cam engaging in a groove (39) (66) is performed. Dispenser according to claim 1 or 2, characterized in that that the handle (15) on the outer circumference (63) of the base body (5) lies and the driver (16) in the base body (5) protrudes through a window opening (70) which at most up to the end wall (19), that in particular the driver (16) opposite the window opening (70) positively locked against rotation immediately in engages the base body (5), and that preferably the Base body (5) on the inner circumference (62) has a concave curvature Has inner surface against which a pivot axis (11) of the driver (16) offset radially inwards is. Dispenser according to claim 3, characterized in that the window opening (70) is wedge-shaped in cross section Window limitation (71) connects that in particular the outer peripheral surface (63) of the base body (5) with Distance between their ends an inclined surface (71) has, and that preferably the handle (15) bowl-shaped formed with resilient shell edges and Provide a thickening (67) on the inside which is immediately in the actuated end position is adjacent to the inclined surface (71). Dispenser according to one of the preceding claims, characterized characterized in that the driver (16) one over the entire circumference limited passage (73) for the plunger (6) and the limitation of this passage (73) over the scope to the discharge conveyor (8) protrudes that in particular the plunger (6) Driver (16) overlaps laterally on the outside, and that preferably a driving surface (74) of the driver (16) closer to the pivot axis (11) than that of the pivot axis (11) furthest peripheral area of the Passage (73) lies. Dispenser according to one of the preceding claims, characterized characterized in that the base body (5) downstream of the Front wall (19) two jacket walls lying one inside the other (58, 59), which are penetrated by the plunger (6), that in particular the handle (15) on the outside of the outer jacket wall (59), this outer jacket wall (59) overlaps at the front and the outer jacket wall (59) downstream axially adjacent to the passage (73) covers, and that preferably the inner jacket wall (58) protrudes axially beyond the outer casing wall (59) and the discharge head (9) leads. Dispenser according to one of the preceding claims, characterized characterized in that the media outlet (20) through the downstream outlet end of a straight nozzle channel is formed, its upstream Inlet end a nozzle core (44) with a core surface opposite that in particular the nozzle core (44) only upstream of the core area from a flat channel (49) is penetrated, which on the outer circumference of the nozzle core (44) and on one projecting above the nozzle core (44) Shoulder (47) emerges in a longitudinal groove (53), and that preferably radially from the bottom of the longitudinal groove (53) inwards a transverse groove (54) extends directly into the inlet end of the nozzle channel opens. Dispenser according to claim 8, characterized in that the Nozzle core (44) is formed by the plunger (6) that especially the plunger (6) on most of it Length exposed in one penetrated by the nozzle channel Head housing (21, 22) is arranged, and that preferably the plunger (6) consists of a plurality of longitudinal plunger sections (29, 41, 40, 42, 43) is. Dispenser according to one of the preceding claims, characterized characterized in that the base body (5) on its by the handle (15) facing away with an opposite offset the subsequent peripheral surface (63) transversely Surface (72), such as a finger cavity, is provided that in particular the outer peripheral surface (63) of the base body (5) essentially over the entire length of the in the media body (7) engaging the base body (5) runs with constant width, whereby the media storage (7) is longer than the base body (5) and the handle (15) in any position between the ends of the body (5), and that preferably the handle (15) resilient on the outer circumference in the actuated end position (63) of the base body (5) is supported. Dispenser according to one of the preceding claims, characterized characterized in that the discharge conveyor (8) is a push piston pump with axially in relation to the base body (5) essential stuck pump housing (23) is that in particular the handle (15) through the window opening (70) inserted transversely into the base body (5) and the Tappet (6) in grooves on the inner circumference of the base body (5) is guided axially limited, and that preferably a cover cap (80) receiving the discharge head (9) is provided which is between the jacket walls (58, 59) engages and with a wedge surface (76) the handle (15) clamped radially against actuation.

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