|Número de publicación||US2797738 A|
|Tipo de publicación||Concesión|
|Fecha de publicación||2 Jul 1957|
|Fecha de presentación||22 Nov 1954|
|Fecha de prioridad||22 Nov 1954|
|Número de publicación||US 2797738 A, US 2797738A, US-A-2797738, US2797738 A, US2797738A|
|Inventores||Patterson William M|
|Cesionario original||Patterson William M|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (2), Citada por (41), Clasificaciones (9)|
|Enlaces externos: USPTO, Cesión de USPTO, Espacenet|
July 2, 1957 W. M. PATTERSON ADJUSTABLE CHAIR 2 Sheets-Sheet 1 Filed Nov. 22, 1954 William M. Patterson INVFNTOR.
BY MM 3M5 July 2, 195? w. M. PATTERSON 2,797,738
ADJUSTABLE CHAIR Filed NOV. 22, 1954 2 Sheets-Sheet 2 Fig.2
WiIIIbm-M. Patterson I N V EN TOR.
BY /QM United States Patent Ofiice 2,797,738 Patented July 2, 1957 ,2,77,7s ADJUSTABLE CHAIR William M. Patterson, Ravenna, Ohio Applicafion November 22, 1954, Serial No. 470,262 1 Claim. (Cl. 155 -88 The present invention relates to new and useful improvements in chairs constructed of metal tubing and embodying means for adjusting the legs, arms and back of the chair to comfortably accommodate persons of different sizes.
An important object of the invention is to provide an adjustable chair of this character mounted on rockers and with respect to which the legs are adjustable to provide for the adjustment in the size of the chair.
A still further object is to provide an adjustable chair of simple and practical construction, which is strong and durable, neat and attractive in appearance, relatively inexpensive to manufacture and otherwise well adapted for the purpose for which the same is intended.
These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:
Figure 1 is a perspective view;
Figure 2 is a vertical longitudinal sectional view;
Figure 3 is an enlarged fragmentary vertical sectional view of one of the legs taken on a line 33 of Figure 1; and,
Figure 4 is an enlarged fragmentary vertical sectional view taken on a line 4-4 of Figure 1, and showing the adjustable connection of the leg with the rocker.
Referring now to the drawings in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates a substantially H-shaped front leg structure and the numeral 6 designates a substantially H-shaped rear leg structure. The front leg structure 5 includes a pair of front legs 7 and 8 having their lower portions suitably secured to a pair of rockers 9 and 10 adjacent the front end portion of the latter.
The rear leg structure 6 also includes a pair of rear legs 11 and 12 and all of the legs are of tubular metal construction and plugs 13 are welded or otherwise secured in the lower ends of rear legs 11 and 12 to receive a screw 14 threaded upwardly therein and with the screw selectively engaged in a row of openings 15 adjacent the rear end of an adjacent rocker.
A substantially L-shaped side frame member 16 includes a horizontal portion 17 and a vertical portion 18, the latter being telescoped over the upper end of an adjacent front leg 7 and secured in vertically adjusted position on the front leg by a screw or similar fastener 19 selectively inserted in aligned rows of openings 28 and 21 in the front legs and in the vertical portion 18 of the side frame member 16.
A substantially U-shaped inverted back frame member 22 is constructed with forwardly extending lower end portions 23 telescopically received in the rear ends of the horizontal portions 17 of the side frame members 16 and the end portions 23 of the back frame 22 are secured in forwardly and rearwardly adjusted position with respect to the side frame members 16 by means of screws or similar fasteners 24 selectively received in aligned openings 25 in the telescoping portions of the frame members 17 and 23.
Each side frame member 16 connects the legs 7 and 8 to the back frame 22 in the manner indicated.
An upper rear tubular metal leg section 26 is welded at its upper end to the adjacent forwardly extending lower end 2 3of the back frame 22 and the upper rear leg section 26 is telescopically connected to the adjacent rear leg" and is secured in vertically adjusted position thereto by means of a screw or similar fastener 27 selectively received in aligned openings 28 and 29 in the rear leg 11 and the upper rear leg section 26.
A front frame member is designated generally at 29 and is of tubular metal construction and includes a front crossbar 30 formed with a pair of rearwardly extending portions 31 and 32 welded to the inner side of the adjacent side frame member 16 at the junction of the horizontal andvertical portions 17 and 18 thereof. The rearwardly extending portions 31 and 32 of the front frame member 29 terminate in upstanding posts 33 and 34 telescopically connected to the downwardly extending front end portions 35 and 36 of arms 37 and 38, respectively, by screws or similar fasteners 39 selectively engaged in aligned openings 40 and 41 in the adjacent posts 33 and 34. Pads 42 are suitably secured on top of the arms 37.
The rear end portion of arm 37 is formed with a row of openings 43 adapted for selectively aligning with a vertical row of openings 44 in the back frame member 22 and secured in either vertical or forward and rearward adjusted position by a screw or other suitable fastener 45 inserted in the aligned openings 43 and 44.
The lower portion of back frame member 22 is provided with a crossbar 46 to rigidly connect the sides of the chair to each other.
A cushion support 47 preferably of sheet metal is welded in a downwardly offset position to the underside of each of the side frame members 16 to form a recess between the side frame members and in which a seat cushion 48 is supported and a sheet metal back support 49 is welded in a rearwardly offset position to the side portions of the back frame member 22 and against which a back cushion 50 is supported in a recessed position between the side portions of the back frame member.
From the foregoing it will be apparent that the front and rear legs are vertically extensible to adjust the front and rear portions of the chair vertically and the side frame members 16 are adjustable forwardly and rearwardly with respect to the back frame member 22 to increase or decrease the depth of the chair. The rear leg member 6 is adjustable forwardly and rearwardly on the rockers 9 and 10 to compensate for the forward and rearward adjustment of the side frame member 16 and back frame member 22.
The rear ends of the arms 37 are adjustable forwardly and rearwardly as well as vertically with respect to the back frame member 22 and the front ends of the arms are also adjustable vertically to raise and lower the arms and the several parts of the chair are thus adjustable in a manner to accommodate persons of various sizes.
From the foregoing, the construction and operation of the device will be readily understood and further explanation is believed to be unnecessary. However, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claim.
What is claimed as new is as follows:
An adjustable chair comprising front and rear lower H-shaped leg structures, upper front and rear leg sections telescopically connected to the upper ends of the respective lower front and rear leg structures, means securing the upper and lower leg sections in vertically adjusted position, said upper front leg sections including rearwardly extending side members, an inverted U-shaped back frame rigidly connected at its lower ends to the rear upper leg sections, said back frame including forwardly extending members at the lower end portions of the back frame, means connecting said forwardly extending members of the back frame in telescopically forwardly and rearwardly adjusted position to the side members, upstanding posts rigidly connected to the front upper leg sections, arms connected at their rear end in vertically and forwardly and rearwardly adjusted position to the back frame and said arms including downwardly extending front end portions telescopically connected to the posts for vertical adjustment of the arms, a cushion support of sheet material secured in a downwardly offset position to the side members and adapted for supporting a seat cushion in a recessed position between said side members, and a back cushion support of sheet material secured in a rearwardly offset position to the back frame and adapted for receiving a back cushion in a recessed position within the marginal edges of the back frame.
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