US2272298A - Chair structure - Google Patents

Description

Feb. 10, 1942.

w. M. HAIISON 2,272,298

CHAIR STRUCTURE Filed Nov. 5, 1938 3 Sheets-Sheet 1 I "III" INVENTOR. I l/Vgier 71132 11211071 ATTORNEYS.

Feb. 10, 1942.

w. M. HANSON 2,272,298

CHAIR STRUCTURE Fi'l ed Nov. 5, 1938 s Sheets-Sheet 2 fiyufii l 5 If 11F I ii? I M .L ii

21- I] 3 20 I I lg l/ I 3 5 I! 22 I I \J l f l9 3' i L 6 INVENTOR.

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A TTORNEYS.

Feb. 10, 1942. w, MHANSCN 2,272,298

CHAIR STRUCTURE Filed Nov. 5, 1958 s Sheets-Sheet s INVENTOR. 5 5? 7 Hanson Jr fi adddl/ 4dig- Mab A TTORNEYS.

Patented F eb. 10, 1942 UNITED STATES PATENT OFFICE CHAIR STRUCTURE Walter M. Hanson, Grand Rapids, Mich., as-

signor to American Seating Company, Grand Rapids, Mich., a corporation of New Jersey Application November 5, 1938, Serial No. 238,942

3 Claims.

The present invention relates to chair structures; and its object is to provide a chair structure having improved and simple means for mounting the seat of a chair on the side standards thereof, particularly seat pivot members ly slid for permitting the varying limited spacing of the standards apart; and further, to provide in such a structure a seat having an opening through which said horizontal spindle extends spacedly therefrom for permitting a limited movement of the seat transaxially of said spindle; and further, to provide in such a structure, a helical spring around and connected with the horizontal spindle and with the seat for pressing the seat to raised position, and for urging the seat to a resiliently balanced position between the standards, and for cushioning the movement of the seat transaxially of said spindle; and further, to provide in such a structure an improved stop member for yieldingly resisting the turning movement of the seat and for positively stopping the seat in its continuing movement to one of its said positions.

These and any other objects hereinafter appearing are attained by, and the invention finds preferable embodiment in, the illustrative chair structure particularly described in the body of this specification and illustrated by the accompanying drawings, in which:

Figure 1 is an elevational front view of portions of a chair structure, the seats of the chairs being shown turned to raised position;

Figure 2 is a vertical sectional view thereof taken on line 2-2 of Figure 1;

Figure 3 is an inner side view (enlarged) of a portion of the seat of a chair turned to lowered position of use;

Figure 4 is a vertical sectional view of portions of the structure taken on line 4-4 of Figure 3;

Figure 5 is a horizontal sectional view thereof taken on line 5-5 of Figure 4;

Figure 6 is a vertical sectional view of parts r of the same taken on line 6-6 of Figure 4;

Figures I and 8 are vertical sectional views of portions of the seat and connected parts, taken on line 11 of Figure 4 and showing the seat in opposite turned positions respectively;

Figure 9 is a perspective view of parts mounted on the seat;

Figure 10 is a perspective view of the resilient part of a stop member.

In the chair structure illustrated by these drawings, portions of the seats I of a pair of adjacent theatre chairs in a row thereof are shown supported on standards 2 common to both chairs. The standards have at their opposite sides vertically extending, cross-sectionally round and preferably conical, sockets 3; and the seats have openings 4 extending horizontally through their opposite sides, i. e., through the sides 5 of their bases or sheet metal pans 6. I I

The seats are mounted on the standards by a pair of unitary pivot members 1 each having a downwardly extending spindle'portion 8 removablyseatedturnably in one of the sockets, and a horizontal spindle portion 9.

- Inside the-pan a cylindrical casing Ill having an opening ll through its end I2, is firmly mounted on the pans side 5 by-the turned-over flanges [3 of said side. The opposite (inner) end of the casing has a head l4 secured in place by l6, this head having a central opening ll therethrough. The spindle 9 extends through the openings 4, H, H spacedly therefrom.

A helical spring l9 surrounding the spindle 9 is connected at one end by a pin I8 at the free end of said spindle, the spring being connected at its other end with the seat, 1. e., the casings head l4, its torsional tension being adjustable by engaging'its radially extending extremity Zil-with one of'the heads angularly spaced projections 2|. The springs opposite end portions, respectively surrounding the collar 22 on the free end of spindle 8 and the heads flange 23 around its opening ll, space the springs intermediate portion from said spindle.

The spindle 9 has a radial extension or arm (or as shown a pair of opposite extensions) 25 in the casing, and the casing has on its curved inner side a stop, member (or pair of stop members) each comprising a rigid part, the clip 2'! with converging ends 28, and a resilient part 29 of rubber or the like held between said ends and extending angularly beyond the same, so that in the seats turning movement toward raised or lowered position, the resilient part 29 engages said extension for yieldingly resisting or cushioning said movement; and in the continued turning movement of the seat it is positively stopped the openings through its opposite ends are shown in Figures 4, 7 and 8.

It will be seen that in this chair structure: the seat may be readily mounted removably on the standards by the pivot members I; that, .by reason of the turning of the vertical spindles 8 in the standards sockets 3, the curvature of a row of chairs may be readily adjusted to the requirements of particular installations; that the seat may be readily turned about the horizontal spindles 9 to raised and lowered positions; that the sliding of the seat along the spindles 9 permits variation in the spacing of the standards; that the spacing of the spindles 9 from the seats openings through which they extend permits transaxial movement of the seat relatively to said spindles and the standards; that the springs 19 press the seat turnably about the spindles 9 to raised position; that the same springs pressing between the sides of the seat and the free ends of the spindles 9 yieldingly urge the seat to a resiliently balanced position between the standards; that the same springs spacedly surrounding the spindles 9 are flexed by the weight of the seats occupant thus cushioning the seats movement transaxially of the spindles 9; that, when thus flexed sufficiently, the seat bears at the flange 23 on the spindles 9; and that the seat is yieldingly supported for movement in all directions, thus minimizing or eliminating binding and jarring in such movements.

The invention being intended to be pointed out in the claims, is not to be limited to or by details of construction of the particular embodiment thereof illustrated by the drawings or hereinbefore described.

I claim:

1. A chair structure comprising, in combination: a pair of standards having vertical sockets; a seat having horizontally extending openings in its sides respectively; a pair of separate pivot members for mounting the seat on the standards, each pivot member having a spindle turnable in one of the sockets anda spindle extending into one of the openings along which the seat is movable laterally and about which the seat is turnable to raised and lowered positions; a helical spring surrounding the second mentioned spindle for pressing theseat toward raised position and pressing the same laterally relatively to the standard.

2. A chair structure comprising, in combination: a standard having a circular vertical socket; a seat; a cylindrical casing mounted in the seat having an inner head, the seat and said head having aligned horizontal openings; a pivot member for mounting the seat on the standard having a downwardly extending spindle portion turnable to adjusted position in the socket and a spindle portion along which the seat is slidable laterally and about which the seat is turnable to raised and lowered positions, the last mentioned spindle portion extending horizontally through said openings spacedly therefrom and having a radial extension in the casing; a helical spring around the second mentioned spindle portion, spaced therefrom and connected at its ends therewith and with said head respectively for yieldingly supporting the seat on the second mentioned spindle portion, pressing the seat toward the standard and pressing the seat to raised position; a member mounted inside the casing having a resilient part adapted to engage said extension in the seats turning movement for yieldingly resisting said movement and a rigid part adapted to engage said extension in the seats continued turning movement for stopping the seat in its turned position.

3. A chair structure comprising, in combination: a standard having a circular vertical socket; a seat; a cylindrical casing mounted in the seat having an inner head, the seat and said head having aligned horizontal openings; a pivot member for mounting the seat on the standard having a downwardly extending spindle portion turnable to adjusted position in the socket and a spindle portion along which the seat is slidable laterally and about which the seat is turnable to raised and lowered positions, the last mentioned spindle portion extending horizontally through said openings spacedly therefrom and having a radial extension in the casing; a helical spring around the second mentioned spindle portion, spaced therefrom and connected at its ends therewith and with said headrespectively for yieldingly supporting the seat on the second mentioned spindle portion, pressing the seat toward the standard and pressing the seat to raised position; a member mounted inside the casing having a resilient part adapted to engage said extension in the seats turning movement for yieldingly resisting said movement and a rigid part adapted to engage said extension in the seats continued turning movement for stopping the seat in its turned position, said head having angularly spaced projections wherewith the adjacent end of the spring is adapted to engage for adjustably tensioning the spring torsionally.

'WALTER M. HANSON.

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