US2952302A - Chair - Google Patents

Description

J. MITTLIEDER CHAIR Filed 5- 2, 1956 v INVENTOR, M/7'7' United States Patent CHAIR Jacob Mittlieder, 1'6828Barbee St.,,Fontana, Calif. Filed Aug, 2,1?56, Set- No. 601,744

2 cl m -V C 5 15 The present invention relates broadly to chairs, and specifically to a type of, chair which includes a back, seat and leg support of the so-called contour type, and wherein the seat, back and leg support are shiftable relative to a support framing, to the end that the chair may be tipped to various angularities relative to the support framing, and held in the desired position without the use of locking means.

An object of the invention is the provision of a chair which may be shifted relative to a supporting structure to permit tipping movement of the chair to various desired angularities.

A further object is the provision of a chair which is adapted for either indoor or outdoor use, of attractive appearance, which includes novel constructional features, and which is generally superior to so-called invalid type or contour type chairs now known to the inventor.

Further objects include a chair which is inexpensive in cost of manufacture, foolproof in operation, and easily handled.

With the above mentioned and other objects in view, the invention consists in the novel and useful provision, formation, construction, association, and relative arrangement of parts, members and features, all as shown in a certain embodiment in the accompany-ing drawing, described generally, and more particularly pointed out in the claims.

In the drawing:

Figure 1 is a perspective view of my improved chair,

Figure 2 is a side elevation of the chair shown in Figure 1 and on an enlarged scale,

Figure 3 is a sectional view on the line 3-3 of Figure 2, on an enlarged scale, and,

Figure 4 is a fragmentary sectional view on the line 44 of Figure 3.

Referring now With particularity to the drawing, the chair includes a back 1, seat 2, and leg support 3, the leg support prolonging the seat and at an inclination to the seat. In the present instance, the chair is formed from tubing which marginally outlines or bounds the back, seat and leg support, with spaced flexible transverse and longitudinal strips 4 and 5 joined to said framing. A seetional or continuous cushion (not shown) overlies the strips to form a soft support for the body of the user of the chair.

In the present instance, the support for the back, seat and leg support includes a tubular framing so bent as to provide substantially parallel, spaced apart transverse ground support members 6 and 7, left and right front uprights 8 and 9, and rear left and right uprights and 11, which uprights are joined by arms 12 and 13. The spacing between the ground supports 6 and 7 is greater than the length of the arms 12 and 13 with the result that pairs of uprights, both left and right, 8 to 11 inclusive, are angularly related, as shown in Figure 2. Interconnecting the uprights 8 and 10 and 9 and 11 are tubular members 14 and 15, and which members are spaced below the arms 12 and 13. The tubular members 14 and 2,952,302 Patented Sept. 13, 1960 15 have curved ends which are joined to the framing members in any desired manner, such as by welding or brazing, and which members have horizontal portions substantially paralled with the arms. Tie bars 16ahd17 interconnect the front-and rear uprights 8 and 9, ,lflfand 11, respectively; The tie bars are downwardlybowe'd'so as not to interfere with the spring effect of, the transverse and longitudinal strips 4 and 5whensupportinga load,

As shown best in Figure 2, the tie bar 16 'is above the plane of the horizontal portions of members14and 15, while the rear tie bar 17 below said plane.

Interposed between the seat framin and'thejmembers 14 and 15 are a pair of fulcrum members 18;, ,jThe'fiil crum members are identical .for each side, of vthe.f :l'1faji'r; and include a grooved roller'19, suitably mountedupon an elongated bolt 20, which roman axl elforfthel rqllfl, and which bolt'is' passed diametrically through manna ing for the seat, as shown in Figure 3, at 21. Surrounding the said grooved roller 19 and either member 14 or 15 is an enclosing casing 22. The head 23' of the bolt engages the outer side wall of the casing 22, while spacers 24, 25 are carried on the bolt and interposed between the tubular framing for the seat and the inner side wall 27 of the casing. A washer 28 bears against the tubular framing of the seat, and a pair of nuts, designated as 29, carried on the bolt, secure the parts just described in assemblage. As shown in the figures, the opposite ends of the casing 22 are open. Thus, the seat is supported by a pair of aligned, movable fulcrum members carried upon the members 14 and 15, which permits the chair seat and its associated members, to-wit, the back and leg support, to be shifted toward the front or rear uprights, at the option of the user of the chair.

The operation, uses and advantages of the invention just described are as follows:

It is to be noted that the members 14 and 15 act to brace the uprights of the support framing for the chair, and likewise through the fulcrum members, provide a support for the chair seat and its associated members. In Figure 2, I have shown several positions which the chair seat, back and leg support may assume, depending upon the shifting of the fulcrum members on the tubular members 14 and 15. When a user of the chair is desirous of changing the angularity thereof to a new position, the user either tilts the seat forwardly to the tie bar 16 when an upright posture is desired, or moves the seat on the fulcrum members toward tie bar 17 to obtain a reclining position. It should be observedthat while the seat is being adjusted to a new position, the chair user balances and moves the same on the pair of fulcrum rollers.

The connection of the fulcrum members to the 'seat frame is such that said fulcrum members are positioned nearer the rear of the seat than the front of the seat. The drawing shows that the fulcrum members are approximately two-thirds of the distance from the front of the seat. This distance, of course, may vary, but I have found it expedient to so locate the fulcrum members.

If it is desired to tip the chair, the chair seat is moved on the fulcrum members toward the rear of the chair, as for example, to the dotted line position indicated at 30. This will give a slight elevation to the seat and the leg support, the rear of the chair seat resting upon the tie bar 17. If a fully tipped position is desired, as indicated by dotted lines at 31, then the fulcrum members may be moved forwardly to the position shown at 32, the back 1 engaging the tie bar 17. It will be noted that there is quite a distance between the fulcrum position 32 and the position of engagement of the back with the tie bar 17, with the result that the chair will remain in this position as long as the user of the chair may desire.

Thus, with the present invention, I am enabled to select either the upright position, or the reclining position of the chair by the simple expedient of moving the fulcrum members on the tubular members 14 and 15. I, therefore, do away with all types of locking devices, as presently used for holdinga chair seat in a given position relative to a support.

I claim:

1. A chair including a support having spaced pairs of front and rear uprights, and aligned parallel horizontal members joining at equal height above a level supporting medium the front and rear uprights of each pair, there being front and rear transverse tie bars joining pairs of said upfights, a. seat, and freely movable fulcrum members pivoted to sides of said seat and movable upon the horizontal members of the support, the said seat adapted for engagement with one or the other of said tie bars de pending upon the position of the movable fulcrum members' onsaid horizontal bars.

2; A chair including a supporting frame having a pair of spaced apart, parallel, horizontal members when on a level supporting medium, fulcrum members freely movable on each of said horizontal members, and a seat secured to said fulcrum members at approximately twothirds of the distance from the front to the rear thereof.

References Cited in the file of this patent UNITED STATES PATENTS D. 169,818 Krikorian June 9, 1953 1,988,788 Goodman Jan. 22, 1935 2,102,979 Smith Dec. 21, 1937 2,136,198 Stam Nov. 8, 1938 2,649,138 Rechl'er Aug, 18, 1953 2,714,925 Rosenfeld et a1. Aug. 9, 1955 2,807,310 Sellner Sept. 24, 1957 FOREIGN PATENTS 158,482 Australia ;-2. Aug. 26,1954.

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