US1411747A - Opera chair - Google Patents

Description

S. M. SAMTER AND C. L. COBB.

OPERA CHAIR. APPLICATION FILED AUGJB. 1920.

Patented Apr. 4, 1922.

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Patented Apr, 4:,

Application filed. August 18, 1920. Serial No. 404,408.

This invention relates to chairs and moreparticularly to opera chairs, M

It is one of the objects of the present invention to provide an improved opera chair with relatively movable seat and frame parts to facilitate access to and egress from chairs in aisles or rows.

A further object of the present invention is to provide an improved opera chair involving a rigid, substantial and stationary leg frame structure and aseat, with a back, movable to and fro on the leg frame between predetermined limits.

It is a further ob'ect of the invention tov provide means'for facilitating this to and fro movement, as'occasion requires, on the frame structure, and further to provide an improved anti-friction bearing between the seat and the frame structure.

Another object of the invention is to provide a novel opera chair of few and simple parts that are of an inexpensive character.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be made manifest in the following description of the preferred form of the invention which is illustrated in the drawings accompanying and forming part of the specification. It is to be understood that it is not intended to limit the invention to the embodiment shown by the said draw ings and description, as variations may be adopted within the scope of the invention as set forth in the claim.

In the drawings, Figure 1 is a perspective of the improved chair with the seatin its forward position.

Figure 2 is a vertical section through the seat structure and between the legs of the frame on line 22 of Fig, 3.

Figure 3 is a cross section through the leg frames and transversely across the seat to illustrate the bearings on line 33 of Fig. 2.

Figure l is a front elevation of a portion of a row of chairs.

In the preferred embodiment, the invention comprises a leg frame structure of substantially parallel frames rigidly connected together and suitably attached to a platform, floor, or other base, and which frames are provided upon opposed faces with tracks or guides upon which operate anti-friction bearings carrying a seat that may be pro vided with a back; the'tracks being of sufficient length to permit the chair seat tobe pulled forwardly into a normal position of use and whereby, upon occasion ofnecessity, the seat can be pushed rearwardly, thus giving an added clearance. for persons passa ing between the fronts and backs of rows of seats. A further featureof the invention is provislon for the to and fro movement of the seat with facility, as by means of arms rigidly connected to the frames and having guided relation to members extending from the back of the chair. a

A form. of the invention isshown as corn prising side frames of U-shaped formhaving downwardly extending front and rear legs 2 and 3 connectedby atop-bridge portion t; the lower ends of the legs being provided, if desired,- with laterally extended foot portion 5' by which the frames may be secured to the floor or platform. The front legs of a pairof frames are preferably free from any tansverse connection while the rear legs are transversely connected by a suitable brace or braces 6, thus providing for rigidity of leg frame structure. Superposed at a suitable height above the leg frames are horizontally arranged arms 7-7, the front ends of which are provided with braces S-8 extending upwardly from the tops of the leg frames.

Arranged between the bridge portions lof the leg frames is a seat structure pref erably formed of one integral or continuous sheet of material, as metal, having a seat forming portion 10 having an appropriate ogee surface from the front to the rear, the

latter being provided with an upwardly extending back 11. The front edge of the seat- 10 is provided with a downturned apron 12 that is cut away at the corners, as at 13, to provide clearance openings for a purpose to be explained.

The seat thus described is adapted to be bodily shifted from a front position, as shown in Fig. 1, rearwardly to a predetermined position; the chair seat being shown in Fig. 2 as pushed rearwardly to the back limit of movement.

This to and fro movement of the seat is facilitated by enabling the occupant of the chair to grasp the side arms 757 and through arm force push the chanrear- 1 V vardly or pull it forwardly while sittin on the seat. and grasping the arms 7-7.

.arms are shown as of tubular form to 'rechive and guide links pivotally connected at 16 to the back 11 of. the seat. I

The seat structure may be appropriately mounted upon the leg frames and in the present case this is accomplished by providing on the inner and opposed faces of the} ortions 4"ofthe frames, guideways or traj havingmpper and lower rails 18 and 19, respectively, brought together at the front ends at 20 and at the rear ends at 21. to; form closed slots for the right and left hand jrames, and extending transversely betwt n. 'the. frames, and with their ends heagningwin the tracks are provided roller shafts or bars 22, arranged in parallelism, in bearings] below the chair bottom 10.- The their bottom is prevented from lateralshifting movement by having guided relation between the portions 4 of the leg frames,

and: below the bottom ofthe chair seat these is provided a pair, of parallel flanges or hearing portions 23, through which the roller rods or shafts 22 pass; these flanges 123tbeingwclosely contiguous to the adjacent edges of. the track rails 18 and 19, and further tend to prevent lateral movement of V the chair seat. j a

frames, having on mutual sides close frames forming horizontal guide channels open toward each other in vertical planes, and a seat structure having downwardly extending bearing flange members running close to the inner edgesof the said guide frames so that lateral movement oi the seat is prevented by enga ement of said flanges with the frames, the anges carrying trans: versely extending, parallel roller shafts, the ends of which travel 1 in the guide-way formed by the. guide frames; the forward and rearward movement of the seatstructure being limited b the abutmentof the rollers with the close ends of the guideway.

In testimony whereof, we have hereunto set our hands. 1 1 1 SAMUEL M. SAMTER.

An opera chair comprising rigid side le CLARENCE L. cone.

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