US3814477A - Chair - Google Patents
Chair Download PDFInfo
- Publication number
- US3814477A US3814477A US00283707A US28370772A US3814477A US 3814477 A US3814477 A US 3814477A US 00283707 A US00283707 A US 00283707A US 28370772 A US28370772 A US 28370772A US 3814477 A US3814477 A US 3814477A
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- United States
- Prior art keywords
- wheel support
- seat
- frame members
- extending
- side frame
- Prior art date
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- Expired - Lifetime
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
- A61G5/0816—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair
- A61G5/0825—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S297/00—Chairs and seats
- Y10S297/04—Wheelchair
Definitions
- ABSTRACT A wheeled chair construction having a frame formed by a pair of identical, parallel side frame members and a pair of essentially identical seat frame members each having seat and wheel-support portions joined one to each of side frame members in a vertically spaced relationship and a vertically inclined connecting portion extending transversely adjacent the rear of the chair for-connecting the seat and wheel support portions.
- the frame of the chair of the present invention is preferably fabricated from four metal tubes bent to define a pair of identical side frame members and a pair of essentially identical seat frame members.
- Each seat frame member defines seat and wheel support portions, which are joined to the side frame members in a vertically spaced relationship and a vertically inclined connecting portion, which extends transversely adjacent the rear of the chair for connecting the seat and chair support portions.
- the wheel support portions cooperate with their associated side frame members to form points of attachment for the wheels of the chair.
- the free ends of the wheel support portions extend forwardly of their associated side frame members and define rests for the feet of an occupant of the chair.
- a preferred form of the present chair additionally includes a combination backrest-storage compartment, which extends between the side frame members; a seat, which extends between the seat portions; and a storage shelf, which is arranged vertically below the seat and extends between the wheel support portions.
- FIG. 1 is a side elevational view of the chair according to the present invention
- FIG. 2 is a front elevational view thereof
- FIG. 3 is a top plan view thereof
- FIG. 4 is an exploded perspective view of the chair framework
- FIG. 5 is a sectional view taken generally along line 55 in FIG. I.
- FIG. 6 is a sectional view taken along line 66 in FIG. 1.
- FIGS. I-3 wherein a chair formed in accordance with the present invention is generally designated as [0.
- Chair 10 features a novel frame construction having a pair of side frame members 12 and I2 and a pair of seat frame members 14 and 14; and further generally includes a pair of swivel mounted front wheels 16 and 16', a pair of rear wheels 18 and 18'. a seat 20, a back rest 22 and a storage shelf 24.
- side frame members 12 and 12' are of identical construction and individually formed by shaping, as by bending, a single tube of steel, aluminum or other suitable material.
- members l2 and 12 include sequentially end connected upstanding handle-back rest parts 30 and 30 fitted with molded handle grips 30a and 30a, respectively; lower forwardly extending wheel support parts 32 and 32; lower front parts 34 and 34; rearwardly extending seat parts 36 and 36'; upstanding connector or rear parts 38 and 38; upper forwardly extending arm rest parts 40 and 40'; and upper front parts 42 and 42, which have their lower ends joined, as by brazing, to the juncture of parts 34 and 36 and 34 and 36, respectively.
- Connector parts 38 and 38' are suitably fixed to handleback rest parts 32 and 32', as by bolts 44 and 44, to complete the side frame members.
- the arm rest parts may be fitted with arm rests 40a and 40. a.
- seat frame members 14 and 14' are of substantially identical construction and also preferably formed by shaping, as by bending, a single tube of steel, aluminum or other suitable material to define seat portions 50 and 50; wheel support portions 52 and 52'; and vertically inclined connecting portions 54 and 54', which are arranged to extend transversely adjacent the rear of the chair frame to connect the rearwardly disposed ends of seat and wheel support portions 50 and 52 and 50 and 52', respectively.
- Seat portions 50 and 50' extend substantially co-extensively with seat parts 36 and 36 and are suitably immovably affixed thereto in an overlying relationship, as by means of bolts 56 and 56, respectively.
- Wheel support portions 52 and 52' extend substantially coextensively with wheel support parts 32 and 32, respectively, and are affixed to lie transversely inwardly thereof in the manner to be described.
- the thus associated seat portions and parts 50 and 36 and 50' and 36' may be considered to define a pair of spaced seat support units, whereas the associated wheel support portions and parts 52 and 32 and 52 and 32' may be considered to define a pair of spaced wheel support units.
- wheel support portions 52 and 52 are formed with extensions, which extend forwardly of their associated side frame members and are shaped to define foot rests 58 and58' for an occupant of the chair.
- connecting portions 54 and 54' may be interconnected adjacent their mid points by a pin, rivet or bolt 60.
- a rear wheel mounting device such as may be in the form of a tube or shaft 64.
- the rearwa rdly extending ends of parts 32 and 32 and portions 52 and 52' are stepped or vertically offset, as indicated at 32a, 32a, 52a and 52a.
- Devices 62 and 62 are best shown in F IG.
- wheels l6, l6, l8 and 18' and the manner in which they are connected to mounting device 64 and lower mounting plates 68 and 68" may be conventional and thus forms no part of the present invention.
- seat 20 from a single Sheet of vinyl or other plastic material, which has its opposite marginal edges or ends looped, as best shown in FIG. at 72, to slideably receive seat portions 50 and 50. After assembly, seat 20 is constrained from sliding lengthwise of seat portions 50 and 52' by bolts 56 and 56'. 1
- shelf 24 is preferably formed of a vinyl or other plastic material whose opposite marginal edges or ends are formed with loops 74 to freely receive wheel support portions 52 and 52. Shelf 24 is maintained in position during use by front edge engagement with devices 62 and 62' and rear edge engagement with mounting device 64.
- Back rest 22 is also preferably formed of vinyl sheet material, whose opposite marginal edges or ends are looped, as at 76, to freely receive handle-back rest parts 30 and 30; the back rest being retained in position after the chair is assembled by rrreansof bolts 44 and 44'.
- back rest 22 would be provided with an integrally formed storage compartment or basket 78.
- chair is characterized as being of sturdy, but lightweight, low cost construction, due to the novel constructionof the chair frame comprising only four metal tubular members.
- the reverse bending and mode of interconnecting the several parts of the side frame members provides extremely strong, but light weight sides for the chair, while the design of the seat frame members and their mode of attachment to the side frame members provides the chair with transverse stability to prevent inward movement of the sides of the chair under occupant loading.
- the specific manner disclosed for use in attaching the seat, shelf and back rest to the elements of the chair frame both facilitates fabrication of the chair and replacementof these elements when worn or damaged.
- a wheeled chair comprising in combination:
- a chair frame said frame including a pair of side frame members and a pair of seat frame members, each of said side frame members being defined by deforming a single, piece of metallic tubing and including an upstanding handle-back rest part, a
- each of said seat frame members having a seat portion-fixed to and extending substantially co-ex tensively with said seat part of one of said side frame members and cooperating therewith to define a seat support unit, a wheel support portion extending substantially coextensively with said wheel support part of an other of said side frame members and cooperating therewith to form a wheel support unit and a vertically inclined connecting portion for rigidly interconnecting
- a pair of front wheel support devices associated one with each of said wheel support units for clampingly fixing together forward ends of its associated wheel support part and wheel support portion;
- a back rest extending transversely of said chair frame and being supported by said handle-back rest parts.
- a chair according to claim 1 wherein a shelf extends transversely of; said chair frame and is supported by said wheel support units intermediate said front and rear wheels.
- a chair according to claim 1 wherein said seat is formed with opposite marginal edges looped to receive said seat portions, said back rest is formedwith opposite marginal edges looped to receive said handle-back rest parts, and a shelf extends transversely of said chair frame beneath said seat, said shelf having opposite marginal .edges thereof looped to receive said wheel support portions.
- a frame for a wheeled chair which comprises in combination:
- each of said side frame members being of integral bent metal tubular construction and having sequentially end connected parts including an upstanding handle-back rest part, a lower forwardly extending wheel support part, a lower front part, a rearwardly extending seat part, an upstanding connector part, an upper for wardly extending arm rest part, and'an upper front part, said upstanding connector part being fixed to saidhandle-back rest part, and said upper front part being lower. end fixed adjacent the juncture of said lower 'frontpart'and said seat part; and
- each of said seat frame members being of integral. bent metaltubular construction and including a rearwardly extending seat portion fixed to said seat pa'rtof one of said side frame members, a forwardly extending wheel support portion fixed to said wheel support part of an 'otheruof said side frame members and a transversely extending connecting portion end con- 7 nected to rearwardly disposed ends of said seat and wheel support portions, said seat portions being disposed vertically above and extending substantially coextensive withtheir associated seat parts,
- said wheel support portions being disposed transversely inwardly of and extending substantially coextensive with their associated wheel support parts, and said wheel support portions having forward end portions arranged forwardly of said side frame members and shaped to define foot rests for an occupant of said chair.
- a wheeled chair comprising in combination:
- each of said side frame members being of integral bent metal tubular construction and having sequentially end connected parts including an upstanding handle-back rest part, a lower forwardly extending wheel support part, a lower front part, a rearwardly extending seat part, an upstanding connector part, an upper forwardly extending arm rest part, and an upper front part; said upstanding connector part being fixed to said handle-back rest part, and said upper front part being lower end fixed adjacent the juncture of said lower front part and said seat part;
- each of said seat frame members being of integral bent metal tubular construction and including a rearwardly extending seat portion fixed to and extending substantially coextensive with said seat part of one of said side frame members to define a seat support unit, a forwardly extending wheel support portion fixed to and extending substantially coextensive with said wheel support part of an other of said side frame members to define a wheel support unit, and a transversely extending connecting portion end connected to rearwardly disposed ends of said seat and wheel support portions;
- a frame for a wheeled chair including:
- each of said side frame members being of integral bent metal tubular construction and having sequentially end connected parts including an upstanding handle-back rest part, a lower forwardly extending wheel support part, a lower front part, a rearwardly extending seat part, an upstanding connector part, an upper forwardly extending arm rest part, and an upper front part, said upstanding connector part being fixed to said handle-back rest part, and said upper front part being lower end fixed adjacent the juncture of said lower front part and said seat part;
- each of said seat frame members being of integral bent metal tubular construction and including a rearwardly extending seat portion immovably fixed to and extending substantially coextensive with said seat part of one of said side frame members to define a seat support unit, a forwardly extending wheel support portion immovably fixed'to and extending substantially coextensive with said wheel support part of an other of said side frame members to define a wheel support unit and a transversely extending connecting portion end connected to rearwardly disposed ends of said seat and wheel support portions, said wheel support portions having forward end portions arranged forwardly of said side frame members and shaped to define foot rests for an occupant of said chair; pair of front wheel support devices fixed one with each of said wheel support units adjacent forward ends thereof; and a single rear wheel support device extending transversely of said frame and having its opposite ends fixed to rearward ends of said wheel support units.
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- Life Sciences & Earth Sciences (AREA)
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
A wheeled chair construction having a frame formed by a pair of identical, parallel side frame members and a pair of essentially identical seat frame members each having seat and wheel support portions joined one to each of side frame members in a vertically spaced relationship and a vertically inclined connecting portion extending transversely adjacent the rear of the chair for connecting the seat and wheel support portions.
Description
United States Patent .1191
Mattsson CHAIR [76] lnventorz Erik B. Mattsson, 73 Hammond St.,
Jamestown, NY. 14701 [22] Filed: Aug. 25, 1972 [21] Appl. No.: 283,707
521 u.s.c| ..297/419,297/423,297/440,
297/010. 4 511 lnt.Cl. A47c 5/04 581 Field ofSearch 297/44. 45. 42,419, 420,
297/421, 422, 423, 445, 446, 447, 294, 295, 239, DlG. 4, 440
[56] References Cited UNITED STATES PATENTS 2,084,310 6/1937 Breuer 297/295 2,379,566 7/1945 Duke 297/45 2,402,085 6/1946 Rideout 297/44 10/1949 Everest 297/45 i 3,814,477 5] June 4, 1974 2,460,459 2/1949 Krasku..... .i 297/44 X 2,618,316 11/1952 Way 297/421 2,629,432 2/1953 Hanslick 297/419 2,914,111 11/1959 Mize 297/45 3,054,638 9/1962 Johnson 297/42 3,390,893 7/1968 MacLaren 297/45 Primary Examiner-Francis K. Zugel Attorney, Agent, or Firm-Bean & Bean [57] ABSTRACT A wheeled chair construction having a frame formed by a pair of identical, parallel side frame members and a pair of essentially identical seat frame members each having seat and wheel-support portions joined one to each of side frame members in a vertically spaced relationship and a vertically inclined connecting portion extending transversely adjacent the rear of the chair for-connecting the seat and wheel support portions.
9 Claims, 6 Drawing Figures PATENTEUJM 4 I974 SHEET 2 BF 2 w a G| IIINHII CHAIR SUMMARY OF THE INVENTION The present invention is directed towards wheel type chairs and more particularly to a novel chair frame construction admitting to light weight and low cost fabrication techniques.
The frame of the chair of the present invention is preferably fabricated from four metal tubes bent to define a pair of identical side frame members and a pair of essentially identical seat frame members. Each seat frame member defines seat and wheel support portions, which are joined to the side frame members in a vertically spaced relationship and a vertically inclined connecting portion, which extends transversely adjacent the rear of the chair for connecting the seat and chair support portions. The wheel support portions cooperate with their associated side frame members to form points of attachment for the wheels of the chair. Preferably, the free ends of the wheel support portions extend forwardly of their associated side frame members and define rests for the feet of an occupant of the chair.
A preferred form of the present chair additionally includes a combination backrest-storage compartment, which extends between the side frame members; a seat, which extends between the seat portions; and a storage shelf, which is arranged vertically below the seat and extends between the wheel support portions.
DRAWINGS The nature and mode of the present invention is more fully described in the following detailed description taken with the accompanying drawings wherein:
FIG. 1 is a side elevational view of the chair according to the present invention;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is an exploded perspective view of the chair framework;
FIG. 5 is a sectional view taken generally along line 55 in FIG. I; and
FIG. 6 is a sectional view taken along line 66 in FIG. 1.
DETAILED DESCRIPTION Reference is now made to FIGS. I-3, wherein a chair formed in accordance with the present invention is generally designated as [0. Chair 10 features a novel frame construction having a pair of side frame members 12 and I2 and a pair of seat frame members 14 and 14; and further generally includes a pair of swivel mounted front wheels 16 and 16', a pair of rear wheels 18 and 18'. a seat 20, a back rest 22 and a storage shelf 24.
In accordance with the preferred form of the present invention, side frame members 12 and 12' are of identical construction and individually formed by shaping, as by bending, a single tube of steel, aluminum or other suitable material. With reference to FIGS. 1-4, members l2 and 12 include sequentially end connected upstanding handle- back rest parts 30 and 30 fitted with molded handle grips 30a and 30a, respectively; lower forwardly extending wheel support parts 32 and 32; lower front parts 34 and 34; rearwardly extending seat parts 36 and 36'; upstanding connector or rear parts 38 and 38; upper forwardly extending arm rest parts 40 and 40'; and upper front parts 42 and 42, which have their lower ends joined, as by brazing, to the juncture of parts 34 and 36 and 34 and 36, respectively. Connector parts 38 and 38' are suitably fixed to handleback rest parts 32 and 32', as by bolts 44 and 44, to complete the side frame members. If desired, the arm rest parts may be fitted with arm rests 40a and 40. a.
Again referring to FIGS. l-4, it will be understood that seat frame members 14 and 14' are of substantially identical construction and also preferably formed by shaping, as by bending, a single tube of steel, aluminum or other suitable material to define seat portions 50 and 50; wheel support portions 52 and 52'; and vertically inclined connecting portions 54 and 54', which are arranged to extend transversely adjacent the rear of the chair frame to connect the rearwardly disposed ends of seat and wheel support portions 50 and 52 and 50 and 52', respectively. Seat portions 50 and 50' extend substantially co-extensively with seat parts 36 and 36 and are suitably immovably affixed thereto in an overlying relationship, as by means of bolts 56 and 56, respectively. Wheel support portions 52 and 52' extend substantially coextensively with wheel support parts 32 and 32, respectively, and are affixed to lie transversely inwardly thereof in the manner to be described. The thus associated seat portions and parts 50 and 36 and 50' and 36' may be considered to define a pair of spaced seat support units, whereas the associated wheel support portions and parts 52 and 32 and 52 and 32' may be considered to define a pair of spaced wheel support units.
Preferably, the forward ends of wheel support portions 52 and 52 are formed with extensions, which extend forwardly of their associated side frame members and are shaped to define foot rests 58 and58' for an occupant of the chair. If desired, connecting portions 54 and 54' may be interconnected adjacent their mid points by a pin, rivet or bolt 60.
While various arrangements may be employed to imovably interconnect portion 52 and part 32 and portion 52 and part 32' and to attach the wheel support units to the wheels of the chair, it is preferred to interconnect their front ends by combination front wheel mounting- clamp devices 62 and 62, respectively and to interconnect their rear ends by fixing same, as by weldingor brazing, to a rear wheel mounting device, such as may be in the form of a tube or shaft 64. To accommodate the chair to receive large diameter rear wheels 18 and 18' of the type commonly employed for occupant propelled invalid chairs, the rearwa rdly extending ends of parts 32 and 32 and portions 52 and 52' are stepped or vertically offset, as indicated at 32a, 32a, 52a and 52a. Devices 62 and 62 are best shown in F IG. 4 as including upper plates 66 and 66' and front wheel mounting lower plates 68 and 68, which have their facing contoured surfaces clamped in engagement with the wheel support units by bolts 70 and 70' If desired, devices 62 and 62' may be fitted with quick release latch devices, not shown, for their associated wheels 16 and 16' in order to prevent runaway" of a parked" chair. The construction of wheels l6, l6, l8 and 18' and the manner in which they are connected to mounting device 64 and lower mounting plates 68 and 68" may be conventional and thus forms no part of the present invention.
ltwill be understood that diverse types of seats may be employed in combination with the chair frame thus far described. However, to reduce material costs and facilitate fabrication of the chair, it is preferable to form seat 20 from a single Sheet of vinyl or other plastic material, which has its opposite marginal edges or ends looped, as best shown in FIG. at 72, to slideably receive seat portions 50 and 50. After assembly, seat 20 is constrained from sliding lengthwise of seat portions 50 and 52' by bolts 56 and 56'. 1
in a like manner shelf 24 is preferably formed of a vinyl or other plastic material whose opposite marginal edges or ends are formed with loops 74 to freely receive wheel support portions 52 and 52. Shelf 24 is maintained in position during use by front edge engagement with devices 62 and 62' and rear edge engagement with mounting device 64.
it will be appreciated from the foregoing that chair is characterized as being of sturdy, but lightweight, low cost construction, due to the novel constructionof the chair frame comprising only four metal tubular members. The reverse bending and mode of interconnecting the several parts of the side frame members provides extremely strong, but light weight sides for the chair, while the design of the seat frame members and their mode of attachment to the side frame members provides the chair with transverse stability to prevent inward movement of the sides of the chair under occupant loading. Moreover, the specific manner disclosed for use in attaching the seat, shelf and back rest to the elements of the chair frame, both facilitates fabrication of the chair and replacementof these elements when worn or damaged.
1 claim:
1. A wheeled chair comprising in combination:
a chair frame, said frame including a pair of side frame members and a pair of seat frame members, each of said side frame members being defined by deforming a single, piece of metallic tubing and including an upstanding handle-back rest part, a
wheel support part extending forwardly from adjacent a lower end of said handle-back rest part, a lower front part extending upwardly from adjacent a forward end of said wheel support part, a seat part extending rearwardly from adjacent an upper end of said lower front part, a rear part upstanding from adjacent a rearward end of said seat part, an arm rest part extending forwardly from adjacent an upper end of said rear part and an upper front part extending downwardly from adjacent a forward end of said arm rest part and having a lower end thereof fixed adjacent the juncture of said lower front part and said seat part, said rear part being fixed to said handle-back rest part, each of said seat frame members having a seat portion-fixed to and extending substantially co-ex tensively with said seat part of one of said side frame members and cooperating therewith to define a seat support unit, a wheel support portion extending substantially coextensively with said wheel support part of an other of said side frame members and cooperating therewith to form a wheel support unit and a vertically inclined connecting portion for rigidly interconnecting the rearwardly disposed ends of said seat and wheel support portions, said seat portions being disposed vertically above said seat parts, said wheel support portions being disposed transversely inwardly of said wheel support parts;
a pair of front wheel support devices associated one with each of said wheel support units for clampingly fixing together forward ends of its associated wheel support part and wheel support portion;
a pair of front wheels mounted one by each of said front wheel support devices;
a single rear wheel support device extending transversely of said frame and being fixed to rearward ends of said wheel support parts and said wheel support portions;
a pair of rear wheels mounted adjacent opposite ends of said rear wheel support device;
a seat extending transversely of said chair frame and being supported by said seat support units; and
a back rest extending transversely of said chair frame and being supported by said handle-back rest parts.
2. A chair. according to claim 1, wherein integrally formed forwardly disposed ends of said wheel support portions extend forwardly of said wheel support parts to define foot rests for an occupant of. said chair.
3. A chair according to claim 1, wherein a shelf extends transversely of; said chair frame and is supported by said wheel support units intermediate said front and rear wheels. v
4. A chair according to claim 1, wherein said seat is formed with opposite marginal edges looped to receive said seat portions, said back rest is formedwith opposite marginal edges looped to receive said handle-back rest parts, and a shelf extends transversely of said chair frame beneath said seat, said shelf having opposite marginal .edges thereof looped to receive said wheel support portions.
5. A frame for a wheeled chair, which comprises in combination:
a pair of side frame members, each of said side frame members. being of integral bent metal tubular construction and having sequentially end connected parts including an upstanding handle-back rest part, a lower forwardly extending wheel support part, a lower front part, a rearwardly extending seat part, an upstanding connector part, an upper for wardly extending arm rest part, and'an upper front part, said upstanding connector part being fixed to saidhandle-back rest part, and said upper front part being lower. end fixed adjacent the juncture of said lower 'frontpart'and said seat part; and
a pair of seat frame members, each of said seat frame members being of integral. bent metaltubular construction and including a rearwardly extending seat portion fixed to said seat pa'rtof one of said side frame members, a forwardly extending wheel support portion fixed to said wheel support part of an 'otheruof said side frame members and a transversely extending connecting portion end con- 7 nected to rearwardly disposed ends of said seat and wheel support portions, said seat portions being disposed vertically above and extending substantially coextensive withtheir associated seat parts,
said wheel support portions being disposed transversely inwardly of and extending substantially coextensive with their associated wheel support parts, and said wheel support portions having forward end portions arranged forwardly of said side frame members and shaped to define foot rests for an occupant of said chair.
6. A wheeled chair comprising in combination:
a pair of side frame members, each of said side frame members being of integral bent metal tubular construction and having sequentially end connected parts including an upstanding handle-back rest part, a lower forwardly extending wheel support part, a lower front part, a rearwardly extending seat part, an upstanding connector part, an upper forwardly extending arm rest part, and an upper front part; said upstanding connector part being fixed to said handle-back rest part, and said upper front part being lower end fixed adjacent the juncture of said lower front part and said seat part;
a pair of seat frame members, each of said seat frame members being of integral bent metal tubular construction and including a rearwardly extending seat portion fixed to and extending substantially coextensive with said seat part of one of said side frame members to define a seat support unit, a forwardly extending wheel support portion fixed to and extending substantially coextensive with said wheel support part of an other of said side frame members to define a wheel support unit, and a transversely extending connecting portion end connected to rearwardly disposed ends of said seat and wheel support portions;
a single rear wheel support device extending transversely of said side frame members and being fixed to the rearward end of each said wheel support unit;
a pair of front wheel support devices fixed one to each of said wheel support units for fixing together forward ends of its associated wheel support part and wheel support portion;
a pair of rear wheels mounted adjacent opposite ends of said rear wheel support device;
a pair of front wheels mounted one by each of said front wheel support devices;
a seat supported by said seat support units; and
a back rest supported by said handle-back rest parts.
7. A chair according to claim 6, wherein said seat portions are disposed vertically above their associated seat parts, and said wheel support portions are disposed transversely inwardly of their associated wheel support parts.
8; A chair according to claim 7, wherein said seat portions are bolt afiixed to their associated seat parts, and said front wheel support devices clampingly fix together forward ends of said wheel support portions and their associated wheel support parts.
9. A frame for a wheeled chair including:
a pair of side frame members, each of said side frame members being of integral bent metal tubular construction and having sequentially end connected parts including an upstanding handle-back rest part, a lower forwardly extending wheel support part, a lower front part, a rearwardly extending seat part, an upstanding connector part, an upper forwardly extending arm rest part, and an upper front part, said upstanding connector part being fixed to said handle-back rest part, and said upper front part being lower end fixed adjacent the juncture of said lower front part and said seat part;
a pair of seat frame members, each of said seat frame members being of integral bent metal tubular construction and including a rearwardly extending seat portion immovably fixed to and extending substantially coextensive with said seat part of one of said side frame members to define a seat support unit, a forwardly extending wheel support portion immovably fixed'to and extending substantially coextensive with said wheel support part of an other of said side frame members to define a wheel support unit and a transversely extending connecting portion end connected to rearwardly disposed ends of said seat and wheel support portions, said wheel support portions having forward end portions arranged forwardly of said side frame members and shaped to define foot rests for an occupant of said chair; pair of front wheel support devices fixed one with each of said wheel support units adjacent forward ends thereof; and a single rear wheel support device extending transversely of said frame and having its opposite ends fixed to rearward ends of said wheel support units.
Claims (9)
1. A wheeled chair comprising in combination: a chair frame, said frame including a pair of side frame members and a pair of seat frame members, each of said side frame members being defined by deforming a single piece of metallic tubing and including an upstanding handle-back rest part, a wheel support part extending forwardly from adjacent a lower end of said handle-back rest part, a lower front part extending upwardly from adjacent a forward end of said wheel support part, a seat part extending rearwardly from adjacent an upper end of said lower front part, a rear part upstanding from adjacent a rearward end of said seat part, an arm rest part extending forwardly from adjacent an upper end of said rear part and an upper front part extending downwardly from adjacent a forward end of said arm rest part and having a lower end thereof fixed adjacent the juncture of said lower front part and said seat part, said rear part being fixed to said handleback rest part, each of said seat frame members having a seat portion fixed to and extending substantially co-extensively with said seat part of one of said side frame members and cooperating therewith to define a seat support unit, a wheel support portion extending substantially coextensively with said wheel support part of an other of said side frame members and cooperating therewith to form a wheel support unit and a vertically inclined connecting portion for rigidly interconnecting the rearwardly disposed ends of said seat and wheel support portions, said seat portions being disposed vertically above said seat parts, said wheel support portions being disposed transversely inwardly of said wheel support parts; a pair of front wheel support devices associated one with each of said wheel support units for clampingly fixing together forward ends of its associated wheel support part and wheel support portion; a pair of front wheels mounted one by each of said front wheel support devices; a siNgle rear wheel support device extending transversely of said frame and being fixed to rearward ends of said wheel support parts and said wheel support portions; a pair of rear wheels mounted adjacent opposite ends of said rear wheel support device; a seat extending transversely of said chair frame and being supported by said seat support units; and a back rest extending transversely of said chair frame and being supported by said handle-back rest parts.
2. A chair according to claim 1, wherein integrally formed forwardly disposed ends of said wheel support portions extend forwardly of said wheel support parts to define foot rests for an occupant of said chair.
3. A chair according to claim 1, wherein a shelf extends transversely of said chair frame and is supported by said wheel support units intermediate said front and rear wheels.
4. A chair according to claim 1, wherein said seat is formed with opposite marginal edges looped to receive said seat portions, said back rest is formed with opposite marginal edges looped to receive said handle-back rest parts, and a shelf extends transversely of said chair frame beneath said seat, said shelf having opposite marginal edges thereof looped to receive said wheel support portions.
5. A frame for a wheeled chair, which comprises in combination: a pair of side frame members, each of said side frame members being of integral bent metal tubular construction and having sequentially end connected parts including an upstanding handle-back rest part, a lower forwardly extending wheel support part, a lower front part, a rearwardly extending seat part, an upstanding connector part, an upper forwardly extending arm rest part, and an upper front part, said upstanding connector part being fixed to said handle-back rest part, and said upper front part being lower end fixed adjacent the juncture of said lower front part and said seat part; and a pair of seat frame members, each of said seat frame members being of integral bent metal tubular construction and including a rearwardly extending seat portion fixed to said seat part of one of said side frame members, a forwardly extending wheel support portion fixed to said wheel support part of an other of said side frame members and a transversely extending connecting portion end connected to rearwardly disposed ends of said seat and wheel support portions, said seat portions being disposed vertically above and extending substantially coextensive with their associated seat parts, said wheel support portions being disposed transversely inwardly of and extending substantially coextensive with their associated wheel support parts, and said wheel support portions having forward end portions arranged forwardly of said side frame members and shaped to define foot rests for an occupant of said chair.
6. A wheeled chair comprising in combination: a pair of side frame members, each of said side frame members being of integral bent metal tubular construction and having sequentially end connected parts including an upstanding handle-back rest part, a lower forwardly extending wheel support part, a lower front part, a rearwardly extending seat part, an upstanding connector part, an upper forwardly extending arm rest part, and an upper front part, said upstanding connector part being fixed to said handle-back rest part, and said upper front part being lower end fixed adjacent the juncture of said lower front part and said seat part; a pair of seat frame members, each of said seat frame members being of integral bent metal tubular construction and including a rearwardly extending seat portion fixed to and extending substantially coextensive with said seat part of one of said side frame members to define a seat support unit, a forwardly extending wheel support portion fixed to and extending substantially coextensive with said wheel support part of an other of said side frame members to define a wheel support unit, and a transversely extending connecting portioN end connected to rearwardly disposed ends of said seat and wheel support portions; a single rear wheel support device extending transversely of said side frame members and being fixed to the rearward end of each said wheel support unit; a pair of front wheel support devices fixed one to each of said wheel support units for fixing together forward ends of its associated wheel support part and wheel support portion; a pair of rear wheels mounted adjacent opposite ends of said rear wheel support device; a pair of front wheels mounted one by each of said front wheel support devices; a seat supported by said seat support units; and a back rest supported by said handle-back rest parts.
7. A chair according to claim 6, wherein said seat portions are disposed vertically above their associated seat parts, and said wheel support portions are disposed transversely inwardly of their associated wheel support parts.
8. A chair according to claim 7, wherein said seat portions are bolt affixed to their associated seat parts, and said front wheel support devices clampingly fix together forward ends of said wheel support portions and their associated wheel support parts.
9. A frame for a wheeled chair including: a pair of side frame members, each of said side frame members being of integral bent metal tubular construction and having sequentially end connected parts including an upstanding handle-back rest part, a lower forwardly extending wheel support part, a lower front part, a rearwardly extending seat part, an upstanding connector part, an upper forwardly extending arm rest part, and an upper front part, said upstanding connector part being fixed to said handle-back rest part, and said upper front part being lower end fixed adjacent the juncture of said lower front part and said seat part; a pair of seat frame members, each of said seat frame members being of integral bent metal tubular construction and including a rearwardly extending seat portion immovably fixed to and extending substantially coextensive with said seat part of one of said side frame members to define a seat support unit, a forwardly extending wheel support portion immovably fixed to and extending substantially coextensive with said wheel support part of an other of said side frame members to define a wheel support unit and a transversely extending connecting portion end connected to rearwardly disposed ends of said seat and wheel support portions, said wheel support portions having forward end portions arranged forwardly of said side frame members and shaped to define foot rests for an occupant of said chair; a pair of front wheel support devices fixed one with each of said wheel support units adjacent forward ends thereof; and a single rear wheel support device extending transversely of said frame and having its opposite ends fixed to rearward ends of said wheel support units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00283707A US3814477A (en) | 1972-08-25 | 1972-08-25 | Chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00283707A US3814477A (en) | 1972-08-25 | 1972-08-25 | Chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3814477A true US3814477A (en) | 1974-06-04 |
Family
ID=23087210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00283707A Expired - Lifetime US3814477A (en) | 1972-08-25 | 1972-08-25 | Chair |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3814477A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045081A (en) * | 1975-06-24 | 1977-08-30 | Nhk Spring Co., Ltd. | Reclining chair |
| US4542938A (en) * | 1983-04-11 | 1985-09-24 | Suncast Corporation | Flexible chair |
| EP0255804A2 (en) * | 1986-07-31 | 1988-02-10 | Rainer Küschall | Lightweight wheelchair with adjustable specific balance |
| US4840390A (en) * | 1986-09-30 | 1989-06-20 | Invacare Corporation | Symmetrically modular wheelchair |
| US5560627A (en) * | 1993-11-16 | 1996-10-01 | Guardian Products, Inc. | Low cost wheelchair |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2084310A (en) * | 1933-12-02 | 1937-06-22 | Breuer Marcel | Frame for spring seats |
| US2379566A (en) * | 1943-05-27 | 1945-07-03 | Duke Sam | Folding wheel chair |
| US2402085A (en) * | 1944-08-22 | 1946-06-11 | Gendron Wheel Company | Folding wheel chair |
| US2460459A (en) * | 1947-03-13 | 1949-02-01 | Al R Brooks | Folding article |
| US2486015A (en) * | 1945-10-01 | 1949-10-25 | Herbert A Everest | Collapsible wheel chair |
| US2618316A (en) * | 1946-07-22 | 1952-11-18 | Vono Ltd | Furniture frame construction |
| US2629432A (en) * | 1950-09-28 | 1953-02-24 | Ashby Mfg Company | Fastening device |
| US2914111A (en) * | 1958-03-06 | 1959-11-24 | Institutional Ind Inc | Folding wheel chair |
| US3054638A (en) * | 1961-01-16 | 1962-09-18 | Institutional Ind Inc | Wheel chair |
| US3390893A (en) * | 1965-07-20 | 1968-07-02 | Maclaren Owen Finlay | Structures for folding baby-carriages, chairs, and the like |
-
1972
- 1972-08-25 US US00283707A patent/US3814477A/en not_active Expired - Lifetime
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2084310A (en) * | 1933-12-02 | 1937-06-22 | Breuer Marcel | Frame for spring seats |
| US2379566A (en) * | 1943-05-27 | 1945-07-03 | Duke Sam | Folding wheel chair |
| US2402085A (en) * | 1944-08-22 | 1946-06-11 | Gendron Wheel Company | Folding wheel chair |
| US2486015A (en) * | 1945-10-01 | 1949-10-25 | Herbert A Everest | Collapsible wheel chair |
| US2618316A (en) * | 1946-07-22 | 1952-11-18 | Vono Ltd | Furniture frame construction |
| US2460459A (en) * | 1947-03-13 | 1949-02-01 | Al R Brooks | Folding article |
| US2629432A (en) * | 1950-09-28 | 1953-02-24 | Ashby Mfg Company | Fastening device |
| US2914111A (en) * | 1958-03-06 | 1959-11-24 | Institutional Ind Inc | Folding wheel chair |
| US3054638A (en) * | 1961-01-16 | 1962-09-18 | Institutional Ind Inc | Wheel chair |
| US3390893A (en) * | 1965-07-20 | 1968-07-02 | Maclaren Owen Finlay | Structures for folding baby-carriages, chairs, and the like |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045081A (en) * | 1975-06-24 | 1977-08-30 | Nhk Spring Co., Ltd. | Reclining chair |
| US4542938A (en) * | 1983-04-11 | 1985-09-24 | Suncast Corporation | Flexible chair |
| EP0255804A2 (en) * | 1986-07-31 | 1988-02-10 | Rainer Küschall | Lightweight wheelchair with adjustable specific balance |
| EP0255804A3 (en) * | 1986-07-31 | 1988-06-01 | Rainer Kuschall | Lightweight wheelchair with adjustable specific balance lightweight wheelchair with adjustable specific balance |
| US4840390A (en) * | 1986-09-30 | 1989-06-20 | Invacare Corporation | Symmetrically modular wheelchair |
| US5560627A (en) * | 1993-11-16 | 1996-10-01 | Guardian Products, Inc. | Low cost wheelchair |
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