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Publication numberUS3032375 A
Publication typeGrant
Publication dateMay 1, 1962
Filing dateApr 25, 1960
Priority dateJun 12, 1959
Also published asDE1806233U, DE1909098U
Publication numberUS 3032375 A, US 3032375A, US-A-3032375, US3032375 A, US3032375A
InventorsLalandre Andre
Original AssigneeAlladin Plastics Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Chair comprising removable elements
US 3032375 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

May 1, 1962 A. LALANDRE 3,032,375

CHAIR COMPRISING REMOVABLE ELEMENTS Filed April 25, 1960 FIG. 1

FIG. 3 FIG. 2 7

5d IMWR A. LALANDRE 3,032,375 CHAIR COMPRISDIG REMOVABLE ELEMENTS Andre Lalandre, Paris, France, assignor to Alladin Plastics, Inc, Gardenia, Calif., a corporation of California Filed Apr. 25, 1960, Ser. No. 24,385 (Ilairns priority, appiication France June 12, 1959 3 Claims. or. 297-448) The present invention has for its object a chair essentially characterized by the fact that the seat member thereof, preferably made from a plastic material, with an in tegrally molded chair back member, comprises on its lower face means by which a leg cross-piece assembly may be removably connected, the latter having diverging legs which are held spaced-apart and locked in an operative position by means of a cross-piece and associate parts insuring at the same time the stiffness of the whole structure.

In a preferred embodiment of the present invention, the means for removably connecting the legs are constituted by internally splined sleeves or sockets in which are engaged with a sliding fit the upper ends, preferably slotted, of four tubular chair legs comprising key-hole shaped slots (i.e., slots having the upper portion thereof enlarged with respect to the lower portion) acting as lockkeepers and adapted to receive studs formed at the ends of the arms of a rigid cross-piece the function of which is to maintain the relative spacing of said legs and prevent them from escaping from their sleeves or sockets when someone lifts the chair.

There is provided a suitable locking means which is associated with each stud of the aforementioned cross-piece, so as to maintain said stud set in its lock-keeper.

In order that the present invention be better understood, there will be now described in an illustrative and by no means limitative manner one exemplary embodiment thereof as represented in the annexed drawings in which:

FIG. 1 is a perspective bottom view of said embodiment of the present invention;

FIG. 2 is an enlarged section on the line 11-11 in FIG. 1 showing how the cross-piece arms are locked on the legs of the chair seat member;

FIG. 3 is a fragmentary view of one leg of the chair, showing the lock-keeper adapted to receive one of the cross-piece studs.

Referring now to the drawings, the number reference 1 indicates generally the back member and seat member unit made from a plastic material as recited hereinabove, which is integrally molded and comprises on the underface of the seat member four diverging sleeves or sockets 2, which are externally ribbed as at 2a and internally splined as at 3 (FIG. 2).

In said splined sockets 2 are telescopically nested the upper ends of tubular chair legs 4 having therein one or more slots 7 which lend themselves as above explained to a sufi'icient resilient upsetting so that each of said ends may be easily introduced into and removed from its associated splined socket, if desired.

The chair legs 4, because of their divergence, define spaced bearing points on the ground and impart thereby to the chair substantial support insuring the steadiness of the chair. Said legs are interconnected by means of a removable cross-piece member, which is constituted in the present case by two rigid rods 50, made for example of steel, which are disposed in a cross manner and welded at the intersecting point 8 thereof. Such rods terminate in a stud d which engages and locks itself in a. corresponding key-hole shaped slot 66a forming a lock-keeper provided in each of the chair legs 4.

On the ends of said arms 50 is slidably mounted a collar or ring 9, preferably made from a plastic material, which is provided with a peg 10 which is adapted, after each of the studs 5d has been introduced into the lower 3,932,375 Patented May 1, 1962 "ice section 6 of its corresponding lock-keeper, to be engaged in the upper part or eye 6a of said lock-keeper (see FIGS. 2 and 3).

When the four pegs 10 are engaged in their respective lock-keepers, they positively lock the arms 50 of the crosspiece member which becomes a unitary structure with the four legs of the chair.

If it is desired to remove the cross-piece in order to take off the legs of the seat of the chair, it suffices to disengage the pegs 10 by sliding the rings 9 on their respective cross-piece arms in the direction toward the point of intersection of the rods. The end studs may then be lifted upwardly and out of the enlarged portion of their respective keyhole slots, one at a time. In order to completely remove the legs from the chair, it is then necessary only to pull the legs from their respective sockets.

It is to be understood that the embodiment of the present invention has been described purely as an example thereof in an illustrative and by no means limitative manner and that those skilled in the art may bring thereto any desirable modification without departing from the spirit of this invention as defined in the appended claims.

What I claim is:

1. A chair readily assemblable from a knockdown condition which comprises: a seat constituted by a plastic seating member; internally splined leg-receiving sockets integrally molded on the lower face of said plastic seating member; and rigid tubular legs, the upper end of each of said legs being split by an elongated slot of suflficient length so that the diameter of the upper ends will be reduced upon their insertion into said leg-receiving sockets whereby the splines cooperate with the upper ends to hold them in engagement Within the sockets.

2. A chair readily assemblable from a knockdown condition which comprises: a seat constituted by a plastic seating member integrally molded with a chair back; internally splined leg-receiving sockets integrally molded on the lower face of said plastic seating member; rigid tubular legs, the upper end of each of said legs being split by an elongated slot of sufiicient length so that the diameter of the upper ends will be reduced upon their insertion into said leg-receiving sockets whereby the splines cooperate with the upper ends to hold them in engagement; and brace means connected to each of said legs.

3. A chair readily assemblable from a knockdown condition which comprises: a seat constituted by a plastic seating member; externally ribbed leg-receiving sockets integrally molded on the lower face of said plastic seating member, said sockets having a plurality of splines molded on the inner surface thereof; and rigid tubular legs, the upper end of each of said legs being split by an elongated slot of suflicient length so that the diameter of the upper ends will be reduced upon their insertion into said legreceiving sockets whereby the splines cooperate with the upper ends to hold them in engagement with said sockets.

References Cited in the file of this patent UNITED STATES PATENTS 490,288 Hubbard Ian. 24, 1893 632,064 Roberts Aug. 29, 1899 1,480,416 Pohl Jan. 8, 1924 1,528,129 Phillips Mar. 3, 1925 1,552,104 Zahner Sept. 1, 1925 1,695,411 Busch Dec. 18, 1928 1,764,226 Rennack June 17, 1930 2,650,657 Ohlsson Sept. 1, 1953 2,800,171 Hoven July 23, 1957 2,808,875 Bargen Oct. 8, 1957 2,864,967 Redick Dec. 16, 1958 FOREIGN PATENTS 1,236,664 France June 12, 1959

Patent Citations
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FR1236664A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3201172 *Aug 9, 1963Aug 17, 1965Charles O BlissChair construction
US3208409 *May 25, 1964Sep 28, 1965John Gale CompanyDesk device
US3235309 *Dec 23, 1963Feb 15, 1966Brunswick CorpChair
US3242887 *Oct 13, 1964Mar 29, 1966Raymond Haydock JrPatio tray assembly
US3263630 *Apr 24, 1964Aug 2, 1966John I Foster JrFurniture fasteners
US3267888 *Apr 24, 1964Aug 23, 1966John I Foster JrFurniture fasteners
US3284136 *Apr 19, 1965Nov 8, 1966Pel LtdArticles of furniture
US3322384 *Jun 29, 1965May 30, 1967Crucible Steel Co AmericaFurniture-leg construction
US3333282 *Aug 24, 1964Aug 1, 1967Mustee & Sons E LUtility tubs
US3512742 *Mar 12, 1968May 19, 1970Robson William F JrCable splicer's seat
US3687092 *Oct 12, 1970Aug 29, 1972Republic Molding CorpMolded furniture
US3704912 *Jan 12, 1971Dec 5, 1972Richard S BezarkMulti-component molded plastic chair
US3730109 *Jan 4, 1971May 1, 1973Armstrong Cork CoKnock-down table structure
US3823426 *Oct 18, 1972Jul 16, 1974W MitchkoRapid assembly combination sandbox and pool
US3865050 *Jun 22, 1973Feb 11, 1975Arco Falc SrlConvertible leg assembly
US3955441 *Dec 20, 1974May 11, 1976J. I. Case CompanyPush-pull cable mounting assembly
US4339213 *Jun 4, 1980Jul 13, 1982Acco Industries Inc.Termination anchorage
US4362311 *Nov 15, 1979Dec 7, 1982Bergman Per GDismountable wheel-chair
US4647109 *Mar 3, 1986Mar 3, 1987Milsco Manufacturing CompanyUpholstered seat assembly and a one-piece seat and back shell of molded plastic therefor
US4793579 *Feb 16, 1988Dec 27, 1988Kason Industries, Inc.Table leg mounting socket
US5601340 *May 20, 1994Feb 11, 1997Stout; Max W.Ready-to-assemble upholstered furniture
US5638762 *Apr 18, 1995Jun 17, 1997Chestnutt; Michael JamesTable with buttressed leg joints
US6749265 *Apr 30, 2003Jun 15, 2004Ideal Concepts Inc.Seat of a metallic chair
US8308230 *Apr 22, 2010Nov 13, 2012Wonderland Nurserygoods Company LimitedLeg frame and child chair having the same
US20110074187 *Apr 22, 2010Mar 31, 2011Zhong Zhi-RenLeg frame and child chair having the same
US20130320740 *Jun 5, 2012Dec 5, 2013Kristen SamieeSystem and Method for Converting a Chair into a Yoga Chair
Classifications
U.S. Classification297/440.24, 403/361, 248/188, 403/315, 248/165, 297/DIG.200, 285/399, 403/231, 403/316, 248/221.12
International ClassificationA47C4/02, A47C7/00
Cooperative ClassificationA47C7/002, Y10S297/02, A47C4/02, A47C4/03
European ClassificationA47C7/00B, A47C4/03, A47C4/02