US1037565A

US1037565A - Adjustable chair.

Info

Publication number: US1037565A
Application number: US67991512A
Authority: US
Inventors: William T Favorite
Original assignee: JERROLD F WALTON
Current assignee: JERROLD F WALTON
Priority date: 1912-02-26
Filing date: 1912-02-26
Publication date: 1912-09-03
Anticipated expiration: 1929-09-03

Description

J. F. WALTON & W. T. FAVORITE.

ADJUSTABLE CHAIR.

APPLICATION FILED 211.26, 1912.

1,'037,565 l Patented sepn.3,1912.

2 SHEETS-SHEET 1.

COLUMBIA PLANOGRAPH C0.. WASHINBNN., D. Cr-

J. F. WALTON & W. T. FAVORITE.

ADJUSTABLE CHAIR.

APPLICATION FILED 121213.26, 1912.

Patented Sept. 3, 1912.

2 SHEETS-SHEET 2.

t Iltlll UMBIA PLANOGRAPH m.. WASHINUNN, D. (2.

UNITED STATES PATENT OFFICE.

JERROLD F. WALTON AND WILLIAM T. FAVORITE, F STURGIS, MICHIGAN; SAID FAVORITE ASSIGNOR TO SAID WALTON.

[ ADJUSTABLE CHAIR.

Specification of Letters Patent.

Patented Sept. 3, 1912.

' To all whom t may concern;

Be it knownthat we, JERnoLD F. WAL'roN and WILLIAM T. FAVORITE, citizens of the United States, residing at the city of Sturgis, county of St. Joseph, State of Michigan, have invented certain new and useful Improvements in Adjustable Chairs, of which the following is a specification.

This invent-ion relates to impro-vements in adjustable chairs.

The main objects of this invention are: First, to provide an improved adjust-able chair which is very easily adjusted and to any desired position within its scope. Second, to provide in an adjustable chair an improved adjust-ing mechanism which is comparatively simple in structure as well as being economical and durable.

Further objects and objects relating to structural details will denitely appear from the detailed description to follow. n

We accomplish the objectsof our invention by the devices and means described in the following specification.

The structure described constitutes one effective embodiment of our invention.

Other embodiments would be readily devised by those skilled in the art. A The invention is clearly defined and pointed out in the claims. y

A` structure constituting an effective and preferred embodiment of the features of our invention is clearly illustrated in the accompanying drawing, forming apart of this specification, in which:

Figure I is a side elevation of a structure embodying the features of our invention, with portions ,broken away to bettershow structural details. Fig, II is an inverted view of the structure appearing in Fig.' I. Fig. III is a detail perspective of our improved adjusting mechanism, as here embodied. Fig. IV is an enlarged det-ail vertical section through the adjusting mechanism. Fig. V is -an inverted perspective view of the clutch member 15. Fig. VI is a detail perspectiveof the forward end of the link l2. `Fig. VII is a detail view of a modified form of the connect-ion `between n link 12 and slide 16. Fig. VIII is a detail Referring to the drawing, the chair frame u preferably consists of rear posts 1 and front posts 2 which are extended to form the front and rear legs of the chair.

The posts are connected to the front and rear frame pieces 8 and the side frame pieces 4. The front and, rear frame pieces are connected by the horizontally-disposed piece 5 on which the adjusting mechanism is mounted. On the-upper ends of the posts are arms 6. The arms, in the struct-ure illustrated, are connected to the side fra-me pieces 4 by panel-like pieces 7.

The back, in the structure illustrated, is formed of side bars 8 connected by suitable cross pieces 9, as is well understood. The back is hinged at 10.l Secured to the back,

preferably by arranging through the cross Vthe link when it is released. This link is adjustably secured by means of the clutch member 15. which, in 'the structure illustrated, is plate-like in form and provided with V-shaped teeth 16o'nv one edge. On the under side of the plate is a pivot ear, 17 which is embraced by the forward end of the link. A coacting clutch memberklS is provided, having V-shaped teeth 19 corresponding to the teeth 16 of the clutch member 15. These clutch members are, in the structure illustrated, slidablyv supported by a bracket, `designated 'generally as 20, having a slide way 21 for the clutch member 15 and a slide way 22 for the coacting clutch member 18. This bracket is provided with ears 23 and 24 for attachment to the `frame piece 5, and also with upturned ears 25 to which the inner endsr of the bars 26 are secured. (See Fig. 3.) The bracket with its ears as described, is preferably formedl inteorally of sheet metal. At the outer ends o the bars 26 are turned laterally arms 27 which are secured to one'of the side pieces 4 of the frame. `One of the bars being longer jen than the other, the proper spacing of the outer ends of these bars is secured, while t-heir inner ends are held in a spaced relation by the bracket to which they are secured, as described. Y

Mounted between the bars on the pivot 28 is a lever 29 having an inclined end 30 adapted to coact with the inclined end 31 of the clutch member 18 in forcing the clutch member to its engaging position. The lever is actuated by the spring 32, preferably a rod spring-as shown, its outer end being secured to the lever at 33 while its inner end engages the cross piece 34.- on the bars 26. This cross piece not only retains the spring under tension to actuate the lever, but also serves to limit the upward movement of the lever, its downward movement being` limited by engagement with the bracket 20. (See Fig. The lever'29 is preferably operated by means of the button 35 inthe arm of the chair, the stem 36 of which rests upon the lever 29 so that when the button 35 is pressed downwardly the inner end of the lever is lifted out of engagement with the clutch member 18, thus freeing the clutch member 15 and consequently the back, permitting its adjustment. When the lever is released the clutch members are actuated to retain the back in its adjusted position.

Our improved adjusting mechanism is very easily manipulated; that is, it is easily engaged and disengaged to permit the adjustment of the back, and the back may be adjusted to substantially any position v-'ithin its limits. The structure is also of advantage in that it is simple and economical and very strong and durable.

In the modified form of the connection between the link 12 and slide 16, as shown in Fig. VII, the connecting lug 17a and ears 17b turned outwardly for the connection of the tension springs 14.

In the modification shown in Fig. VIH, only one of the bars is turned oif at right angles to form an arm 27', for the purpose of attachment. The other bar is provided with a projection 26a to properly space the bars. Y

7e have illustrated and described our improvements in detail in the form in which we have embodiedthem in practice. We are, however, aware that they are capable of very considerable variation in structural details without departing from our inven-V tion, and we desire to be understood as claiming them specifically in theform illustrated, as well as broadly, within the scope of the appended claims. y

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is: Y

1. The combination with the Vframe and hack, of a link connected to said back, said link being formed of pieces` arranged side by side with their forward ends separated and turned laterally; springs connected to the laterally-turned ends of said link pieces and to said frame; a plate-like clutch member having V-shaped teeth on one edge thereof and a pivot ear on its under side arranged between the link pieces and pivoted thereto; a coacting clutch member having V-shaped teeth thereon and an inclined surface at its outer end; a bracket having transversely-disposed ways in which said clutch members are slidably arranged, and bar and frame attaching ears, said bracket being formed integrally of 4sheet metal; a pair of spaced bars secured to said frame at their outer ends and to said bar attaching ears of said brackets at their inner ends, a lever having an inclined surface at its inner end adapted to engage the inclined surface of said clutch member, pivoted between said bars; a rod spring arranged between said bars, its outer end being secured to said lever; a cross piece on said bars under which the inner end of said spring is arranged, Vsaid cross piece .and bracket being adapted to limit the movement of said lever; and a button on said frame having a stem adapted to engage the outer end of said lever.

2. The combination with the frame and back,-of a link connected to said back; a plate-like clutch member having V-shaped teeth on one edge thereof and a pivot ear for said link on its under side; a coacting clutch member having V-shaped teeth thereon and an inclined surface at its outer end; a bracket having transversely-disposed ways in which said clutch members are slidably arranged, and bar and frame attaching Cars, said bracket being formed integrally of sheet metal; a pair of spaced bars secured to said frame at their outer ends and to said bar attaching ears of said brackets at their inner ends; a lever having an inclined surface at its'inner end adapted to engage the inclined surface of said clutch member, pivoted between said bars; a rod spring arranged between said bars, its outer ends being secured to lsaid lever; a cross piece on said bars under which the inner end of said spring is arranged, said cross piece and bracket being adapted to limit the movement of said lever; and a button on said frame having a stem adapted to engage the outer end of said lever. 4

- 3. The combination with the frame and back, of a link connected to said back, said link being fcrmedof pieces arranged side by side with their forward ends separated and turned laterally; springs connected to the laterally-turned ends of said link pieces and to said frame; a plate-likeclutch member having V-shaped teeth' on one edgethereof and a pivot ear on its under side arranged between the link pieces and pivoted thereto; a coacting clutch member having V-shaped teeth thereon and an inclined surface at its outer end; a bracket having transverselydisposed ways in which said clutch members are slidably arranged, and bar and frame attaching ears, said bracket being formed integrally of sheet metal; a pair of spaced bars secured to said frame at their outer ends and to said bar attaching ears of said brackets at their inner ends; and a lever having an inclined surface at its inner end adapted to engage the inclined surface of lsaid clutch member, pivoted between said ars.

Il. The combination with the frame and back, of a link connected to said back; a plate-like clutch member having V-shaped teeth on one edge thereof and a pivot ear for said link on its under side; a coacting clutch member having V-shaped teeth thereon and an inclined surface at its outer end; a bracket having transversely-disposed ways in which said clutch members are slidably arranged, and bar and frame attaching ears; said bracket being formed integrally of sheet metal; a pair of spaced bars secured to said frame at their outer ends and to said bar attaching ears of said brackets at their inner ends; and a lever having an inclined surface at its inner end adapted to engage the inclined surface of said clutch member, pivoted between said bars.

5. The combination with the frame and back, of a link connected to said back; a sliding clutch member provided with V-shaped teeth connected to said link; a coacting clutch member provided at its inner end with engaging teeth and having an inclined surface at its outer end; means for slidably supporting said clutch members; a pivoted lever having an inclined surface at its inner end adapted to engage the inclined surface of said clutch member; a spring for actuating said lever; and a finger piece for operating said lever to release said clutch.

6. In an adjustable chair the combination of the chair frame; an adjustable back pivoted on said frame; a slidable clutch member in suitable ways on said frame; a connection from said slidable member to said back; a coacting clutch member to engage said slidable member andprovided with an inclined surface; a lever having an inclined surface to coperate with the inclined surface on said clutch member; a spring urging said lever against said clutch member; and means for manually manipulating said lever to release said clutch.

In witness whereof we have hereunto set our hands and seals in the presence of two witnesses.

J. F. WALTON. WILLIAM T. FAVORITE.

L. s. [1.. s]

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.