US2024045A - Swinging and swiveling chair - Google Patents

Description

P. H. JOHNSON SWINGING AND SWIVELING CHAIR I Dec. 10, 1935.

Original Filed April 11, 1929 6 Sheets-Sheet 1 ll 0 10, 1935. N ON 2,024,045

SWINGING AND SWIVELING CHAIR Original Filed April 11, 1929 6 Sheets-Sheet 2 Dec. 10, 1935.

- P. H. JOHNSON a 2,024,045 SWINGING AND SWIVELING CHAIR Original Filed April 11, 1929 6 SheetsSheet 3 10, 1935. PQH. JOHNSON SWINGING AND SWIVELING CHAIR Original Filed April 11, 1929 6 Sheets-Sheet 4 Dec. 10, 1935. P. H. JOHNSON 2,024,045

'SWINGING AND SWIVELING CHAIR Original Filed April 11, 1929 6 Sheets-Sheet 5 38 9 F y j 0, 1935. P. H. JOHNSON ,0

SWINGING AND SWIVELING CHAIR Original Filed A ril 11, 1929 e sh et -sheet 6 e/vaekzzr: Pazzf fams'ai? Patented Dec. 10, 1935 UNITED STATES PATENT OFFICE Application April 11, 1929, Serial No. 354,335 Renewed July 24, 1935' 4 Claims.

This invention relates to swinging and swiveling chairs as used in connection with tables, desks or work benches and the like, and has for its object the provision of the chair and its connections which will be convenient and comfortable to use and occupy.

Another object is to provide means to prevent the chair or any part thereof from coming in damaging contact with the edge of the table or desk to which it is connected.

A further object is the provision of means of relieving the strain of the connecting parts due to the weight of the occupant.

A further object is to provide, in addition to the usual swinging bracket, a means of supporting the weight of the chair and its occupant directly from the floor.

A still further object is to provide means of lifting or raising the chair from the floor when unoccupied.

Another object is to provide a chair and supporting means therefor that will be comfortable.

Another object is to provide a chair and supporting means therefor that will be substantial and rigid.

These and other objects will develop in the course of the description.

In the drawings- Fig. 1 is a perspective view of a chemists table with chairs connected thereto showing one form of. my invention;

Fig. 2 is a detail in plan showing the swinging arm attached to a member of the table;

Fig. 3 is an elevation of the parts shown in Fig. 2;

Fig. 4 is a modified form of the connection shown in Fig. 2;

Fig. 5 is a further modification of the same connection as depicted from Fig. 2;

Fig. 6 is a diagrammatic view showing a further modified form with parts in full and dotted lines indicating the extreme movements of the chair and its relative position with the table;

Fig. 7 is a fragmental View in plan of a modified form of the connection of the arm to the chair;

Fig. 8 is a view similar to Fig. 7 but showing a difierent form as to certain. details of construction;

Fig. 9 is a view in elevation of a chair and the swinging arm with parts broken away to disclose details of construction;

Fig. 10 is a view similarly taken showing a modification of the structure shown in Fig. 9;

Fig. 11 is a plan section taken at the line I I-l I of Fig. 10;

Fig. 12 is a view in elevation of a structure similar to that shown in Fig. 10 but differing somewhat in detail;

Fig. 13 is a plan section taken at line l3-l3 of Fig. 12; 5 Fig. 14 is an elevation of a. chair and support therefor with parts in section and parts broken away to disclose its particular form of construction; and

Fig. 15 is a detail plan section with the line 10 Iii-I5 of Fig. 14.

In Fig. 1 is shown a perspective view of my invention depicting a chair or chairs as the case may be and as shown, and for purposes of illustration a chemists table as shown, though it 15 may be understood that the device is adaptable to other uses. The drawings show the table I, chair seats 2, with back rests 3, and the swinging or connecting arms 4 between the chairs and the desk. The swinging arm 4 is connected for swinging or oscillating by a pintle 5 taking through a hinge bracket 6 which is connected by bolts 1? or in any other desirable manner to the table i.

It is desirable to limit the swinging of the arm 4 about the pintle 5, and to this end there are 5 provided stop members on the brackets 6 and encountering parts on the arm 4; the stop member of the bracket 6 as seen in Figs. 2 and 3, is the lug 8, and the arm 4 has the projecting lug 9, both lugs occupying approximately the same horizontal plane.

In some cases it may be necessary or desirable to vary the amount of swing of the arm 4; means for doing this is shown in Figs. 4 and 5. In Fig.

4 is shown a stop lug 8 separate from and secured to the member 6 as by bolts or screws 1 The lugs 8 may be of various sizes or, as shown in Fig. 5, lugs 8 may furnished; thus the stop lug will consist of two parts, being attached to the member 6 by bolts l i taking through circular slots 88 and may be adjustably secured in any desirable juxtaposition.

In Fig. 6 is shown a different form of adjustable stop for the swinging member; therein is shown cap-screws I2 mounted and secured on the bracket 6 for limiting the throw of the arm 4 These screws may be adjusted, as will be readily understood, to contact the arm 4 and thus stop its movement in either direction, and each screw of course may be adjusted independent of the oth r, thus controlling the movement of the arm.

The chair seat 2 has secured to the bottom thereof a pivot member depending from a flange to (see Figs. 9, 10,12 and 14) and as shown in Fig.

14 this flange carries a stop member cast or formed integrally therewith, while the arm 4 is provided with co-operating stop members 4 arranged to contact the terminals I I l l of the member I I.

These stops i -4 and H operate to limit the swinging of the chair in an obvious manner.

For supporting the chair the flange H] has secured thereto a depending spindle l3 (see Fig. 14) which occupies a journal member 44 at the end of the arm 4 This spindle 13 extends to the floor and provides means for supporting the weight of the occupant and chair when in use. The dottedline position as seen in Fig. 14 shows the position of the parts when the chair is occupied and the full lines indicate the position when not occupied. The vertical movement required for this action is accomplished by an expansible spring l5 which' is interposed between the flange l0 and the member M, the purpose being to raise the spindle l3 which in this instance forms a floor leg, clear of the floor, to more easily swing the chair about when not occupied. To facilitate swinging the chair when occupied, this leg or spindle 13 carries a caster I6 at the bottom thereof.

To assemble the leg in the journal member and to prevent its inadvertent withdrawal, it has formed thereon within the bore I! a reduced portion or neck 18 and a set or holding screw [9 is introduced through the wall of the journal l4 and is advanced toward the neck 18, thus securing the parts in the desired position.

To accommodate this vertical movement and still have the stop 4-4 and II in co-operative relation with each other, the. member H extends downward sufilciently to pass the horizontal plane of the member 4. 7

In Fig. 10 is shown a chair with another form of floor support in which the leg is a separate and distinct piece from the spindle 2|, which corresponds to the member IS in Fig. 14. For lifting the leg 20 from the floor there is provided a spring 22 which reacts between a collar 23, which is secured as by a pin to the upper end of the member 20 and a screw-threaded fitting 24 which has screw-threaded engagement with the journal member 25 which terminates the arm. In this instance the swiveling of the chair 3 is limited by a stop-screw 21 in the member 25 and a recess 28 in the member 2|. This recess 28 is elongated and extends sufficiently to accommodate vertical movement of the chair and its spindle 2! with respect to the member 25. This movement is the result of providing a second spring 29 which is for the sole purpose of supplying a spring or resilient seat for the occupant and, as shown, the spring 29 is larger andof greater resistance than the spring 22 because when it is stressed by the weight of the occupant it is necessary to overcome the reaction or possible resistance of the spring 22 so that the leg 20 may reach the floor to function as a support.

In Fig. 12 a spring 30 which corresponds to and acts as the spring 22 of the form shown in Fig. 10, is arranged to react between a flange 3| and the bottom 32 of a circumscribing housing 33 which is integral with the arm 34. Within this housing is a journal member 35 for the spindle 36. The spindle 36 is rigidly secured to the flange ll] of the chair for rotation therewith and is arranged to move vertically within the journal-35 but to transmit rotative motion to the member 35 through the screw 3'! riding in the slot 38 in the spindle 36. The member 35 carries a stop 40 cooperating with a stop 4| secured to the arm-terminating housing 33, thus limiting the swiveling of the chair at its pivotal point. I

To supply a resilient seat and provide for various weights of occupants, a spring 43 is interposed between the lower end of the spindle 36 and an adjustable screw member 44. It will be seen that by manipulating the screw 44 by means of the 5 hand-wheel 45 any initial resistance may be stored in the spring 43, the screw 31 limiting the upward movement of the spindle 36. Because of the presence of the hand-wheel 35 the floorreaching support is composed of a multiplicity of 10 legs 41, each having a'caster 48 to afford ease of movement of the chair when occupied.

In Fig. 9 is shown a chair mounting which departs slightly from the forms hereinbefore described; the bracket 50, which is secured to the 5 table I, has the pintle engaging projections 51 and 52 sufiiciently spaced apart to accommodate the journalling of the arm 53 and a compressible spring 54 which is held in place by the pintle 55. This spring serves to lift the chair-supporting 20 arm 53 with its leg 56 and caster 51 clear of the floor. The pivot 58 which is secured to the flange It is slotted at 59 to provide, together with the screw 60 in the journal member 6|, means for limiting the swiveling of the chair; the swinging 5 of the arm 53 is limited as in a previously described instance by the stops 62 and 63 on the bracket and the arm 53 respectively. A provision is made as is here shown to adjust the chair as to height. This is accomplished by exteriorly 30 screw-threading the pivot 58 and providing an interiorly threaded member or nut 62 in the form of a hand-wheel; thus the intrusion of the pivot 58 within the bore of the journal member 6| may be controlled. 35

Fig. 6 is primarily intended to diagram the movement of the chair in its relative positions with respect to the table or desk I and though a particular embodiment is therein shown, the other forms described are intended to operate in 40 a like manner, and it is to be understood that many changes and modifications may be made without departing from the spirit of my invention.

occupied, automatic means encircling the supporting means for raising the supporting means clear of the floor when the chair is unoccupied, and spring means independent of the said automatic means for resiliently supporting the chair and the occupant.

2. The combination of a desk and a chair attached thereto, means for swingingly attaching the said chair to the said desk, means for limiting the swinging of said chair relatively to the desk, a leg under the chair reaching to the floor, automatic means encircling the leg for raising the said leg from the floor when the chair is unoccupied, and resilient means for supporting the said chair in the said attaching means. 5

3. The combination with a table of a horizontally swinging arm pivotally mounted adjacent said table and a seat pivotally mounted on the swinging end of saidswinging arm for horizontal swinging movement with respect to said arm, said seat having a seat portion which swings below the table and a back portion extending upwardly from the'seat portion, and means for limiting the swinging movement of said seat with respect to said arm, to prevent the back iromstrik- 2,024,045 3 r9 ing the table, comprising a pair of stops eng member having a horizontal shoulder bearing in able with opposite sides respectively of said swingsaid housing member, a ring in tween sai ins arm. shoulder and the lowe ll i said housing, sai A. The combination of a desk a chair at Journal memb r havin ertical op ing there tached thereto, mean for swingi g1 attaching through said chair hav ng a spind xtending 5 d chair to said desk, said means comprising a downwar nto said opening, sc -operate t on a l of id desk, rm pivotally spring me below said spi e i r supplying horizontally outa resilient seat, an plurality of egs secure r a tending downwardl from d on a

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