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US3269771A - Convertible chair - Google Patents

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Publication number
US3269771A
US3269771A US46878165A US3269771A US 3269771 A US3269771 A US 3269771A US 46878165 A US46878165 A US 46878165A US 3269771 A US3269771 A US 3269771A
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seat
chair
members
leg
position
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Erdos Edmund
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Erdos Edmund
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47DFURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D1/00Children's chairs
    • A47D1/002Children's chairs adjustable
    • A47D1/004Children's chairs adjustable in height
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47DFURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D1/00Children's chairs
    • A47D1/08Children's chairs convertible to a rocking chair

Description

Aug. 30, 1966 E. ERDOS 3,269,771

CONVERTIBLE CHAIR Filed July 1, 1965 2 Sheets-Sheet 1 I N VE NTOR. fp/wu/vo 2005 Aug. 36, 1966 V I E. ERDos 3,269,771

CONVERTIBLE CHAIR Filed July 1. 1965 2 Sheets-Sheet 2 INVENTOR EQMUND 4%005 J2 mw 4. 0FNEY United States Patent 3,269,771 CONVERTIBLE CHAHQ Edmund Erdos, 1463 Portland Ave, St. Paul, Minn. 55104 Filed July 1, 1965, Ser. No. 468,781 4 Claims. (Cl. 297132) The present invention relates to chairs which are convertible into various forms having multiple uses. More particularly, the invention relates to chairs which can be simply converted into a high chair, a stable low chair, and a rocking chair, preferred-embodiments of which have utility in many areas of use.

Generally speaking, chairs which are convertible, e.g. into a high chair and rocking chair, have been known for many years. In this respect see Paine Patent No. 604,941, granted May 31, 1898; Smith Patent No. 682,961, granted September 17, 1901; Lepard Patents No. 877,204, granted January 21, 1908, and No. 907,253, granted December 22, 1908; and Clapp Patent No. 888,868, granted May 26, 1908.

To the best of my knowledge, however, no one in the prior art, as a practical matter, has provided a triply convertible chair, namely a chair which is convertible into a stable low chair, a stable high chair, and a rocking chair, upon simple operation of a catch mechanism and appropriate manipulation of the leg members. The manner in which my invention provides such a novel chair, as well as exhibiting numerous other advantages, will be apparent from the description which follows, taken in connection with the accompanying drawing, in which like numbers refer to corresponding parts in the several views, and in which:

FIGURE 1 is a side View of a preferred embodiment of our invention in high chair position, partially cut away to reveal the catch mechanism;

FIGURE 2 is a side view of the device of FIGURE 1, converted into low chair position;

FIGURE 3 is a plan view of the device in the position shown in FIGURE 2;

FIGURE 4 is a section view taken along the lines 44 of FIGURE 2;

FIGURE 5 shows an enlargement of the catch mechanism, illustrating its various positions and functions;

FIGURE 6 is a section view taken along the lines 66 of FIGURE 5;

FIGURE 7 is a side view of the chair of FIGURE I converted into rocker position; and

FIGURE 8 is a further side view of my invention in the low chair position, illustrating alternative aspects thereof.

Referring now to the drawings, and especially to FIG- URE 1, seat 10 comprises a box-like base 12, a removable cushion 14, and chair arms 15. The chair arms preferably are formed of light tubular metal bent generally into inverted U-shape, with the lower vertical members 16 extending down along side and being fastened to base 12. Arm rests 17 are fastened on the top side of the tubular arms 15.

Hingedly affixed to the rear of base 12 is a cushioned back rest 18. Side brackets 19 for adjustably positioning the back rest are pivotally fastened at one end thereof to the back rest. Said brackets 19 have positioning notches 20 which cooperate with stud 21 mounted on arms to allow several positions of the back rest at various degrees of inclination with respect to the seat.

The leg members of my convertible chair include a first pair of laterally opposed arcuate leg members 22 and 220, respectively joined at their ends by cross-members 23 and 24 (FIG. 3). Similarly, a second pair of arcuate members 26 and 26a, are joined together at the one end thereof by cross-member 28. A foot rest bracket 32 is connected between legs 22 and 22a (FIG. 3).

Arcuate leg members 22 and 26, and 22a and 26a, respectively, are pivotally interconnected by shaft 34 which normally passes therethrough generally centrally thereof. To receive the shaft 34, a hole .is drilled through legs 22 and 22a. A slot is provided in legs 26 and 26a, detachably to receive shaft 34 for purposes to be hereinafter described. Shaft 34 is threaded on each end to receive wing nuts 35, which tighten on arcuate leg members 26 and 26a, and hold them together with the other arcuate legs, 22 and 22a. To prevent the leg members 22, 22a, 26, and 26a from bowing inwardly when wing nuts 35 are tightened, bearing collars 33, flanging legs 22 and 22a are fixed on shaft 34 (FIG. 4).

Arcuate legs 26 and 26a are fastened to the rear portion of seat base 12. More specifically, legs 26 and 2601 are each provided with a lengthwise extending slot 36, through which passes rod 37, which passes also through the rear portion of said chair base 12 near the bottom thereof. The rod is threaded on each end to receive wing nuts 38, which can be turned up tight against legs 26 and 26a to hold them into position.

When my novel chair is in the high chair position, as shown in FIGURE 1, rod 37 will be seen to be positioned near the outer end of the slots 36 of legs 26 and 26a. To faciltate the location of this position during conversion of the chair from another position, an indentation 39 is provided in the sides of each of arcuate legs 26 and 26a adjacent slots 36, permitting the wing nuts 38 to be tightened down and to hold the arcuate members properly in position. The depression also serves as a safety feature, to prevent the arcuate legs from sliding with respect to the bolt, should the wing nut become slightly loosened.

In the high chair position, each of legs 20 and 20a (the other pair of arcuate legs) is fastened at its upper end to the front of seat base 12 by means of a catch mechanism 40 located one at each side of the seat 10 within the seat base 12 near the front thereof.

As shown, particularly in FIGURES 5 and 6, said catch mechanism comprises a catch 41 mounted on the inside of base 12 for sliding movement front-to-rear and vice versa, and a lock 42 which slides in a vertical slot 44 in catch 41. The lock 42 passes through guide aperture 46 in the side wall of seat base 12. This guide aperture takes somewhat of an inverted U-shape (FIG. 8). It will thus be seen that if the lock 42 is raised in slot 44 of catch 41, the whole catch mechanism may be moved front to rear, and vice versa. However, if the lock is depressed in slot 44, whenever the latch is in the forward or rearward position, it will slide down in aperture 46 and slot 44 (-in seat base 12 and catch 41, respectively), thereby locking the catch mechanism 40 in place.

Catch 41 is provided with a forward extension 48, having a forward projection 50, and with a widened rearward extension 52 having upper and lower slots 54 and 56, respectively.

When the chair is in the high chair position of FIGURE 1, the catch mechanism is locked in the forward position so that projection 50 passes into mating holes or apertures provided in cross-member 23 which joins arcuate legs 22 and 22a. With the catch mechanism and legs 22 and 22a so positioned, and the wing nuts 38 and 35 tightened down on arcuate legs 26 and 26a, our device maintains a stable high chair position.

The chair is readily converted into a rocker, as shown in FIGURE 7. First, wing nuts 35 and 38 are loosened, the latter being loosened sufliciently to permit legs 26 and 26a to slide with respect to rod 37. Lock 42 is raised, and catch mechanism 40 is moved rearwardly to free projection 50 from member 23. The legs 22 FIGURE 2).

and 22a and 26 and 2611 will collapse and assume a generally superposed position as shown. As this occurs, the seat slides along the slot 36 in legs 26 and 26a to become positioned generally centrally of the arcuate leg members. The seat bears against legs 22 and 22a, actual bearing contact occurring between the lower end of arms 16 and the concave surface of the legs 22 and 22a. To look the chair into this position, the catch mechanism is moved rearwardly so that shaft 34 is positi oned within slot 56 of catch 41 (shown in broken lines .in FIGURE 5). Even without wing nuts 35 and 38 being tightened down, a sturdy rocking chair results.

Referring again to FIGURE 1, my chair is converted from the high chair to the low chair position as shown in FIGURES 2 and 3 in the following manner: Wing nuts 35 and 38 are loosened, and the catch mechanism is moved to the rear to release legs 22 and 22a. The seat is lifted slightly so that legs 26 and 26a slide until rod 37 is positioned toward the outer end of slot 36. This permits the legs 22 and 22a to be pivoted about rod 34 in a counterclockwse direction with the cross-member 24 passing rearwardly underneath seat base 12. After the cross-member 24 is to the rear and [free of the seat base, rotation is continued until legs 22 and 22a assume the position shown in FIGURE 2. Also, legs 26 and 26a are simultaneously pushed up and slid rearwardly on rod 37. In this fashion, the seat becomes centered with respect to legs 22 and 22a. Topermit the seat stably to bear against convex side of legs 22 and 22a, a vertical slot 58 is provided in the side walls of seat base 12 (see The depth of the slot, and the arcuate shape of legs 22 and 22a are so related that when catch mechanism 40 is moved to the rear, the rod 34 assumes a position within'slot 54 of catch 41, thereby locking the device into a stable low chair position (FIG. 5).

Thus has been shown the basic three positions of my novel chair. While the conversion into the low chair and rocking chair has been described beginning with the 'high chair position, it will be apparent that my chair can be converted into any one of the basic positions from any of the others simply by loosening wing nuts 35 and 38, and appropriately manipulating the legs and catch mechanisms.

It will also be apparent that my chair can be employed 62 appropriately inserted in cross-member 24, wherebythe low chair becomes an infant stroller. Further to this end, legs 26 and 26a (and their connecting member 28) can serve as a push bar. This is accomplished by loosening wing nuts 35 and 38, so that arcuate members 26 and 26a can be freed from shaft 24, and rotated in a counterclockwise direction and pulled upwardly (sliding on rod 37) to assume the position shown. Spring clips 64 mounted on arm rests 15 (FIG. 3) hold the arcuate members 26 and 26a in this upward position.

If desired, my novel chair can be used as a training chair, by removal of cushion 14, the top of seat base 12 being provided with the appropriately shaped aperture 65 (FIG. 3). As shown in FIGURE 3, brackets 66 located along the lateral sides of seat base 12, near the top thereof, support a waste container, which can be inserted and removed into the seat base from an appropriately hinged back wall. Aso, pivotally mounted supports 68 can be afiixed to the chair back so that, upon removal of the arcuate leg members completely, the chair can serve as a car seat. Rings 70 also can be provided appropriately in the back and arms whereby the chair can be employed as a swing seat. Various other alternative features can be added to the chair, to utilize, and vary upon, the basic three-position character thereof. Such modifications are contemplated, and I do not intend to be limited to the preferred device disclosed, but only by the specification taken as a whole, including the appended claims, properly construed.

I claim:

1. A convertible chair comprising a seat, a first pair of laterally opposed arcuate leg members detachably affixed one on each side adjacent to the front of said seat, a second pair of laterally opposed arcuate leg members slidably afiixed along the length thereof one to each side adjacent the rear of said seat, the arcuate leg members on the same side of said seat being pivotally interconnected generally centrally thereof, said interconnected arcuate members, upon disconnection of each of said first leg members and upon sliding the seat along and toward the center of each rear connecting leg member, ollapsing to assume a generally superposed relation defining opposed rocking surfaces centrally supporting said seat, said first leg members upon disconnection being pivotable about said point of interconnection and invertible to support said seat centrally thereof on its ends in a low chair position.

2. A convertible chair comprising a seat; a first pair of laterally opposed arcuate leg members; a connecting member joining the legs of said pair together at one end thereof; catch means detachably holding said connecting member along the front edge of said seat with said ends of the leg members of said first pair positioned one on each side and adjacent to the front of said seat; a second pair of laterally opposed arcuate leg members slidably affixed along the length thereof one to each side and adjacent to the rear of said seat; a laterallyextending shaft disposed under said seat, the ends of which pass through and interconnect the leg members on the respective sides of said seat; said interconnected arcuate leg members, upon detachment of said catch means from said connecting member and further upon sliding the seat along and toward the center of each leg member of said second pair collapsing to assume a generally superposed relation defining opposed rocking surfaces centrally supporting said seat; said first pair of leg members upon detachment of the connecting member from said catch means being also pivotable about said shaft and invertible to support said seat generally centrally thereof on its ends in a low chair position; said catch means being slidable detachably to engage said shaft when the leg members are in either the rocking or low chair position.

3. A convertible chair comprising a seat; a first pair of laterally opposed arcuate leg members; a connecting member joining the legs of said pair together at one end thereof; a catch positioned for slidable movement back and forth on said seat having a front projection and a rearward extension, with the latter being provided with upper and lower slots, said slots and projection extending parallel with the direction of movement of said catch, said front projection, when said catch is in the forward position detachably engaging and holding said connecting member along the front edge of said seat with said ends of the leg members of said first pair positioned one on each side and adjacent to the front of said seat; a second pair of laterally opposed arcuate leg members slidably affixed along the length thereof one to each side and adjacent to the rear of said seat; a laterally-extending shaft disposed under said seat, the ends of which pass through and interconnect the leg members on the respective sides of said seat; said interconnected arcuate leg members, upon detachment of the catch from said connecting member and further upon sliding the seat along and toward the center of each leg member of said second pair, collapsing to assume a generally superposed relation defining opposed rocking surfaces centrally supporting said seat; said first pair of leg members upon detachment of the connecting member from said catch being also pivotable about said shaft and invertible to support said seat generally centrally thereof on its ends in a low chair position; said catch in its rearward position; engaging said shaft in its lower slot when the leg members of said first pair are in their rocking position and in its upper slot when said first pair are in their low chair positions; and a lock for releasbly fastenin-g said catch in its forward and rearward positions.

4. A convertible chair comprising a seat; a first pair of laterally opposed arcuate leg members; a connecting member joining the legs of said pair together at one end thereof; catch means detachably holding said connecting member along the front edge of said seat with said ends of the leg members of said first pair positioned one on each side and adjacent to the front of said seat; a second pair of laterally opposed arcuate leg members slidably affixed along their length near one end thereof one to each side and adjacent to the rear of said seat, a crossmember connecting the leg members of said second pair at the other ends thereof; a laterally-extending shaft disposed under said seat, the ends of which pass through and interconnect the leg members on the respective sides of said seat; said interconnected arcuate leg members, upon detachment of said catch means from said connecting member and further upon sliding the seat along and toward the center of each leg member of said second pair, collapsing to assume a generally superposed relation defining opposed rocking surfaces centrally supporting said seat; said first pair of leg members upon detachment of the connecting member from said catch means being also pivotable about said shaft and invertible to support said seat generally centrally thereof on its ends in a low chair position; said catch means being slidable to detachably engage said shaft When the leg members are in either the rocking or low chair position; the leg members of said second pair further being readily detachable from said shaft for pivoting toa generally upright position with said cross-member serving as a push handle; and means for releasably fastening said second pair of leg members in said upright position.

References Cited by the Examiner FRANK B. SHERRY, Primary Examiner.

J. T. MCCALL, Assistant Examiner.

Claims (1)

1. A CONVERTIBLE CHAIR COMPRISING A SEAT, A FIRST PAIROF LATERALLY OPPOSED ARCUATE LEG MEMBERS DETACHABLY AFFIXED ONE ON EACH SIDE ADJACENT TO THE FRONT OF SAID SEAT, A SECOND PAIR OF LATERALLY OPPOSED ARCUATE LEG MEMBERS SLIDABLY AFFIXED ALONG THE LENGTH THEREOF ONE TO EACH SIDE ADJACNET THE REAR OF SAID SEAT, THE ARCUATE LEG MEMBERS ON THE SAME SIDE OF SAID SEAT BEING PIVOTALLY INTERCONNECTED GENRALLY CENTRALLY THEREOF, SAID INTERCONNTECTED ARCUATE MEMBERS, UPON DISCONNECTION OF EACHOF SAID FIRST LEG MEMBERS AND UPON SLIDING THE SEAT ALONG AND TOWARD THE CENTER OF EACH REAR CONNECTING LEG MEMBER, COLLAPSING TO ASSUME A GENERALLY SUPERPOSED RELATION DEFINING OPPOSED ROCKING SURFACES CENTRALLY SUPPORTING SAID SEAT, SAID FIRST
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400976A (en) * 1967-06-21 1968-09-10 Leo J. Messier Convertible chair construction for infants
US4036523A (en) * 1974-09-25 1977-07-19 Knud Nielsen Child's chair
US4160564A (en) * 1978-05-19 1979-07-10 Kyle Gordon L Convertable chair
US4278288A (en) * 1979-06-26 1981-07-14 Sacha Thebaud Chair provided with interlacing and intermeshing seat and back portions supported by arcuate support members
US4394046A (en) * 1981-06-26 1983-07-19 Irwin Warren W Convertible rocker and high chair
US4807926A (en) * 1986-10-14 1989-02-28 Oswald Brunn Folding furniture
US5531502A (en) * 1994-12-12 1996-07-02 Berggren; Peter G. Combination chair for children
US5560675A (en) * 1994-01-13 1996-10-01 Bemis Manufacturing Company Folding rocking chair
US5829826A (en) * 1997-07-10 1998-11-03 Ziccardi; Maryanne Convertible childs chair
US6161847A (en) * 1999-04-30 2000-12-19 Mattel, Inc. Push n' pedal n' rock trike
US6174028B1 (en) * 1999-06-01 2001-01-16 Link Treasure Limited Infant rocking chair
US6540292B2 (en) * 1999-05-28 2003-04-01 Mattel, Inc. Adjustable rocker seat
US6550857B1 (en) 2002-01-31 2003-04-22 Thurman Canton Convertible high chair and rocker
US6854800B2 (en) * 2002-09-06 2005-02-15 Peg Perego S.P.A. Rocking high-chair for children
US20110227375A1 (en) * 2010-03-17 2011-09-22 Mattel, Inc. Reconfigurable Infant Support Structure
US8585136B2 (en) 2006-10-23 2013-11-19 Sauder Manufacturing Co. Chair with coupling companion stool base
US8777305B1 (en) 2012-01-12 2014-07-15 J Squared, Inc. Multifunction chair convertible from office chair to floor rocker and stool

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US214297A (en) * 1879-04-15 Improvement in combination-chairs
US394716A (en) * 1888-12-18 Convertible chair
US408612A (en) * 1889-08-06 Vania
US682961A (en) * 1901-05-31 1901-09-17 George H Smith Convertible high chair and rocker.
US707884A (en) * 1902-02-13 1902-08-26 Peter B Watson Folding reclining-chair.
US1400718A (en) * 1921-07-20 1921-12-20 Bittel Henry Convertible chair-bed
DE363221C (en) * 1922-11-06 Julius Biram High chair with removable table
US1562161A (en) * 1925-03-20 1925-11-17 Guterman Samuel Convertible furniture
FR1282368A (en) * 1961-02-17 1962-01-19 rapid fixing device of a folding seat in its base
US3126226A (en) * 1964-03-24 johnson

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US214297A (en) * 1879-04-15 Improvement in combination-chairs
US394716A (en) * 1888-12-18 Convertible chair
US408612A (en) * 1889-08-06 Vania
US3126226A (en) * 1964-03-24 johnson
DE363221C (en) * 1922-11-06 Julius Biram High chair with removable table
US682961A (en) * 1901-05-31 1901-09-17 George H Smith Convertible high chair and rocker.
US707884A (en) * 1902-02-13 1902-08-26 Peter B Watson Folding reclining-chair.
US1400718A (en) * 1921-07-20 1921-12-20 Bittel Henry Convertible chair-bed
US1562161A (en) * 1925-03-20 1925-11-17 Guterman Samuel Convertible furniture
FR1282368A (en) * 1961-02-17 1962-01-19 rapid fixing device of a folding seat in its base

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400976A (en) * 1967-06-21 1968-09-10 Leo J. Messier Convertible chair construction for infants
US4036523A (en) * 1974-09-25 1977-07-19 Knud Nielsen Child's chair
US4160564A (en) * 1978-05-19 1979-07-10 Kyle Gordon L Convertable chair
US4278288A (en) * 1979-06-26 1981-07-14 Sacha Thebaud Chair provided with interlacing and intermeshing seat and back portions supported by arcuate support members
US4394046A (en) * 1981-06-26 1983-07-19 Irwin Warren W Convertible rocker and high chair
US4807926A (en) * 1986-10-14 1989-02-28 Oswald Brunn Folding furniture
US5560675A (en) * 1994-01-13 1996-10-01 Bemis Manufacturing Company Folding rocking chair
US5531502A (en) * 1994-12-12 1996-07-02 Berggren; Peter G. Combination chair for children
US5829826A (en) * 1997-07-10 1998-11-03 Ziccardi; Maryanne Convertible childs chair
US6161847A (en) * 1999-04-30 2000-12-19 Mattel, Inc. Push n' pedal n' rock trike
US6540292B2 (en) * 1999-05-28 2003-04-01 Mattel, Inc. Adjustable rocker seat
US6174028B1 (en) * 1999-06-01 2001-01-16 Link Treasure Limited Infant rocking chair
US6550857B1 (en) 2002-01-31 2003-04-22 Thurman Canton Convertible high chair and rocker
US6854800B2 (en) * 2002-09-06 2005-02-15 Peg Perego S.P.A. Rocking high-chair for children
US9668583B2 (en) 2006-10-23 2017-06-06 Sauder Manufacturing Co. Chair with coupling companion stool base
US8585136B2 (en) 2006-10-23 2013-11-19 Sauder Manufacturing Co. Chair with coupling companion stool base
US8960787B2 (en) 2006-10-23 2015-02-24 Sauder Manufacturing Co. Chair with coupling companion stool base
US9370249B2 (en) 2006-10-23 2016-06-21 Sauder Manufacturing Co. Chair with coupling companion stool base
US8550556B2 (en) 2010-03-17 2013-10-08 Mattel, Inc. Reconfigurable infant support structure
US20110227375A1 (en) * 2010-03-17 2011-09-22 Mattel, Inc. Reconfigurable Infant Support Structure
US8777305B1 (en) 2012-01-12 2014-07-15 J Squared, Inc. Multifunction chair convertible from office chair to floor rocker and stool

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