US2643703A - Side frame for chair-desks - Google Patents

Description

June 30, 1953 s. C wlLLls TAL 2,643,703

SIDE FRAME: FOR cHAIR-DEsKs Filed March E, 1950 2 Sheets-Sheet 2 JIumuev c. will@ '4r aurencei 7V: Brula Patented June 30,. 1953 UNITED STATES v- (')FFICE' l v 2,643,703 a y y sim: FRAME FOR Sumner C. Willis and Laurence W. Brliii, New

York, N. Y., assignors Company, Grand Rapid of New Jersey to American Seating s, Mich., a corporation Application March 2, 1950, seria-i Nb. irri/isz' 2 claims. (c1. 155-.-128) The present invention relates to chair-desks and more particularly to chair-desks for use in classrooms. Y l

The primary objects of the invention are to provide a structure comprising a chair and a desk-- top or writing arm permanently mounted on the chair and movable therewith, and to provide such a structure which is simply and sturdily constructed and attractive in appearance.

An illustrative embodiment of the invention is shown in the accompanying drawings, wherein:

Figure 1 is a front and right-hand side perspece tive view of a chair-desk constructed according to the present invention;

Figure 2 is a rear and left-hand side perspective view of the same;

Figure 3 is an inside perspective View of one of the side frames of the chair-desk, being the righthand side frame of the chair-desk shown in Fgure 1;

Figure 4 is a fragmentary view of a portion of the side frame shown in Figure 3, during a phase of the frames fabrication;

Figure 5 is an enlarged, central vertical sectional view of the chair-desk, taken on the line 5-5 of Figure 2; and

Figures 6, '7 and 8 are fragmentary, horizontal sectional detail views taken on the lines 6-6, 1-1 and 8-8 respectively of Figure 5.

Referring now in detail to these drawings, the chair there shown generally comprises a righthand side frame I and a left-hand side frame I I, which frames are connected by and form mutual supports for a sheet steel cross-sectionally V-shaped book box I2, a chair seat I3, and a chair back consisting of an upper back rail I4 and a lower back rail I5. The side frames I0 and II are fabricated from integral sheets of steel and have upright rear portions I6, I1 respectively to which the upper back rail I4 is secured as by means of rivets I8 and to which the lower back rail I is pivoted as at I9. The side frames i6 and Il also have inwardly anged, substantially horizontal portions 20, 2| respectively to which the rear part of the seat I3 is secured as by means of rivets or bolts 22.

The left-hand side frame II has a depending rear portion 23 (see Figure 2) forming the left rear leg of the chair, a depending front portion 24 forming the left front leg of the chair, and a horizontal connecting rail 25 connecting the depending leg portions 23 and 24 for lending rigidity to the structure. The leg portions 23 and 24 of the left-hand side frame I I have inwardly turned anges 26, 21 respectively thereon to which the 2 upstanding rear and front walls 28, 29 of th book box I2 are' respectively secured as by means of rivets or bolts 30.v The connecting rail 25 of the left-'hand side frame lI I has a similar inwardly turned angeSI to which the bottom 32 of the bo'ok box l2" is 'secured a-s by means of rivets or bolts 33 (see Figure 2). v

-The right-lharid side frame ,I ofthe chair-.desk has a depending rear portion 34 forming the right rear leg of the chair, which rear leg portion 34 has an inwardly turned ila-nge 35 to which is secured the rear wall 28 offtl'ie bookbox as by'v means of rivets or bolts 36.Y --The righthad side frame I0 has a continuous upstanding tubular front portion 34 formed by bending the metal sheet of this side frame I0 inwardly and then rearwardly as best illustrated in Figures 4. and 3. This front portion 31 of the right-hand side frame I9 is disposed to one side of the seat I3 so as not to impinge on the front edge of the seat thus affording greater comfort for the chair occupant. The tubular front portion 31, sloping upwardly and rearwardly, depends below the seat to form. the

right front leg 38 of the chair and also extendsabove the seat to form an upright support 39 for a desk top 40 which is mounted on its upper end by means of a bracket 4I secured to the underside of the desk top 40. The bracket 4I has a depending arm or rod 42 telescopically tted within a tubular element 43 mounted in the upper part of the support 39, and a clamp generally designated 44 is provided for securing the rod 42 within the tubular element 43 in a known manner, thus to secure the desk top 40 in vertically adjusted position.

The tubular front portion 31 of the right-hand side frame I0 has on its inner wall an inwardly turned ilange 45 to which is secured the front wall 29 of the book box I2 as by means of rivets or bolts 46 (see Figure 5). The upper edge 41 of the front wall 29 of the book box I2 is turned rearwardly and forms a support for the front edge of the seat I3 which is secured thereto as by means of rivets or bolts 48, the right-hand bolt 48 passing also through the rearwardly turned upper end 49 or flange 45 on the side frame l0.

The meeting rearward edges of the tubular upright support 39 of the side frame I0 are secured together as by welding indicated at 50 in Figure 6, and the meeting rearward edges of the depending ront leg 38 of the side frame I9 are likewise secured together as by welding indicated at 5I in Figure 8, so that the exposed portions of and that one of the integral side frames .also Y.

forms a support for the desk-top of the unit, and that the chair-desk thus constructed is simple, sturdy, comfortable and attractive.

While but one specific embodiment of the invention is herein shown and described, it will be from the plane of the aforesaid portions and thence rearwardly and outwardly to form a continuous tubular column.

2. A side frame for a chair-desk, said side frame comprising a unitary metal sheet fabricated to form a substantially horizontal middle portion forming a chair seat support, a continuous rear portion depending below the seat support to form a rear chair leg and extending above the seat support to form a chair back support, and a continnous front portion depending below .the seat support .to form .a iront chair leg and extending above the'seat support to form a desk top support, 'the forward marginal edge of said continunderstood that numerous details may be altered or omitted without departing fromv the spirit of the invention as the same is defined bythe following claims.

1. A side frame for a chair-desk, said side frame comprising a unitary metal sheet fabricated -to form a substantially horizontal middle portion forming'a chair seat support, a continuous front portion being curled inwardly from the planeV of theaforesaid portions andythence rearwardly and outwardly Ato form a continuous tubular column sloping in an upwardly-rearwardly direction.

SUMNER C. WILLIS. LAURENCE vW. BRULIN. VReferences Cited in the file oi this patent Y UNITED STATES PATENTS Number Y Great Britain Apr. 30, 1934

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