GB2412306A - Motorised wheelchair with seat height adjustment. - Google Patents

Motorised wheelchair with seat height adjustment. Download PDF

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Publication number
GB2412306A
GB2412306A GB0406505A GB0406505A GB2412306A GB 2412306 A GB2412306 A GB 2412306A GB 0406505 A GB0406505 A GB 0406505A GB 0406505 A GB0406505 A GB 0406505A GB 2412306 A GB2412306 A GB 2412306A
Authority
GB
United Kingdom
Prior art keywords
tube
movable
fixed
disposed
seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0406505A
Other versions
GB0406505D0 (en
Inventor
Samuel Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sunpex Technology Co Ltd
Original Assignee
Sunpex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunpex Technology Co Ltd filed Critical Sunpex Technology Co Ltd
Priority to GB0406505A priority Critical patent/GB2412306A/en
Publication of GB0406505D0 publication Critical patent/GB0406505D0/en
Publication of GB2412306A publication Critical patent/GB2412306A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/023—Tricycles specially adapted for disabled riders, e.g. personal mobility type vehicles with three wheels
    • B62K5/025—Tricycles specially adapted for disabled riders, e.g. personal mobility type vehicles with three wheels power-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • B60N2/163—Slides only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • B60N2/1665—Hydraulic or pneumatic actuation
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1059—Arrangements for adjusting the seat adjusting the height of the seat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A motor vehicle includes a vehicle body (2), a driving device (3) for moving the vehicle body (2) on the ground, a seat member (4) disposed above the vehicle body (2), and a seat height-adjusting device (5). The seat height-adjusting device (5) includes: a vertical fixed tube (51) fixed on the vehicle body (2); a vertical movable tube (53) connected fixedly to and disposed under the seat member (4) and inserted into and disposed movably within the fixed tube (51); a length-adjustable member (55) including a vertical upper movable rod (552) fixed within the movable tube (53), a vertical lower movable rod (553) fixed within the fixed tube (51) and connected movably to and disposed under the upper movable rod (552), and a fluid valve (555) disposed on an assembly of the upper and lower movable rods (552, 553); and a controlling member (57) connected to the fluid valve (555) and operable to activate the fluid valve (555) so as to permit movement of the upper movable rod (552) relative to the lower movable rod (553), thereby adjusting the height of the seat member (4) relative to the vehicle body (2). The length adjustable member may be an air or gas spring having an actuating handle (57). An upper support bearing (514) may be provided to support the tube members. A positioning means (58) maybe provided to prevent rotation of the support column.

Description

' 2412306
MOTOR VEHICLE WITH A SEAT HEIGHT-ADJUSTING DEVICE
This invention relates to a motor vehicle suitable for a disabled driver, and more particularly to a motor vehicle that is provided with a seat height-adjusting device.
Referring to Fig. 1, a conventional motor vehicle 1 is suitable for a disabled driver, and is shown to include avehiclebodyll, a driving device12 for moving the vehicle body 11 on the ground, and a seat member 13 disposed on the vehiclebodyll. The vehiclebodyllincludesa vehicle frame 111 and three wheels 112 disposed on the vehicle body 11.
The motorvehicle lfurtherincludesa supporting device 14, whichhasaverticaleleevetube141 fixed on the vehicle body 11, a vertical insert rod 142 connected fixedly to and disposed under the seat member 13 and inserted into the sleeve tube 141, and a horizontal positioning pin 143 extending through the sleeve tube 141 and the insert rod 142. As such, the height of the seat member 13 cannot be adjusted, which may result in discomfort to the disabled driver.
Therefore, the object of this invention is to provide a motor vehicle that is provided with a seat height-adjusting device.
According to this invention, a motor vehicle includes a vehicle body, a driving device for moving the vehicle body on the ground, a seat member disposed above the vehicle body, and a seat height-adjusting device. The seat height-adjusting device includes: a vertical fixed tube fixed on the vehicle body;averticalmovable tube connected fixedly to and disposed under the seat member end inserted into and disposed movably within the fixed tube; a length-adjustable member including a vertical upper movable rod fixed within the movable tube, a vertical lower movable rod fixed within the fixed tube and connected movably to and disposed under the upper movable rod, and a fluid valve disposed on an assembly of the upper and lower movable rods; and a controlling member connected to the fluid valve and operable to activate the fluid valve so as to permit movement of the upper movable rod relative to the lower movable rod, thereby adjusting the height of the seat member relative to the vehicle body.
These and other features and advantages of this invention will become apparent in the following detailed description of a preferred embodiment of this invention, with reference to the accompanying drawings, in which: Fig. 1 is a partly exploded perspective view of a conventional motor vehicle; Fig. 2 is a partly exploded perspective view of the preferred embodiment of a motor vehicle according to this invention; Fig. 3 is an exploded perspective view of a seat height-adjusting device of the preferred embodiment; Fig. 4 is a sectional view of the seat heightadjusting device of the preferred embodiment, illustrating how a seat member is disposed at an upper limit position; and Fig. 5 is a sectional view of the seat height-adjusting device of the preferred embodiment, illustrating how the seat member is disposed at a lower limit position.
Referring to Figs.2, 3, and4, the preferred embodiment of a motor vehicle according to this invention is shown to include a vehicle body 2, a driving device 3, a seat member 4, and a seat height-adjusting device 5.
The vehicle body 2 includes a vehicle frame 21 and three wheels22disposedonthevehicleframe21inaknownmanner.
The driving device 3 is disposed on the vehicle body 2 in a known manner so as to rotate the wheels 22 on the vehicle frame 21, thereby moving the vehicle body 2 on the ground.
The seat member 4 is disposed above the vehicle body 2.
The seat height-adjusting device 5 includes a vertical fixed tube 51, a supporting frame 52, a vertical movable tube 53, a vertical guide tube 54, a length-adjustable member 55, a driving rod 56, a controlling member 57, and a positioning unit 58.
The fixed tube 51 has a small-diameter lower tube portion 511 fixed on the vehicle frame 21, and a large-diameter lower tube portion 512 that has an inner diameter larger than that of the small-diameter lower tube portion 511. A bushing 513 is received fittingly within and is connected fixedly to the large-diameter upper tube portion 512 by a positioning pin 514, and has an inner diameter that is equal to that of the small- diameter lower tube portion 511.
The supporting frame 52 includes an upper frame 521 connected fixedly to and disposed under the seat member 4, alower frame 522 connected fixedly to end disposed under the upper frame 521 and formed with a fixed tubular portion 523, end a bushing 524 disposed within end connected fixedly to the tubular portion 523 by a positioning pin 525.
The movable tube 53 is disposed under and is connected fixedly to the supporting frame 52, is inserted into and ismovableverticallywithin the fixed tube 51, andincludes a positioning pin 531, an outward flange 532, an engagement ring 533, an insert tube portion 534, a central bore 535 (see Fig. 5), a recess 536 formed in a top surface of the engagement ring 533, and a plurality of equidistant slots 537 formed through an annular wall of the engagement ring 533. The positioning pin 531 extends through the tubular portion 523 and the bushing 524 and into one of the slots 537 in the engagement ring 533 so as to prevent rotation of the lower frame 522 and the seat member 4 about the movable tube 53. The outward flange 532 i s disposed between the engagement ring 533 and the insert tube portion 534, and has an outer diameter larger than those of the engagement ring 533 and the insert tube portion 534. The engagement ring 533 is inserted into the bushing 524. The insert tube portion 534 is inserted into the fixed tube 51. The central bore 535 has a small-diameter upper bore portion (535N) (see Fig. 5) and a large-diameterlower bore portion (535W) (see Fig. 5) that is connected to a lower end of the upper bore portion (535N) at an upper end and that has a diameter larger than that of the upper bore portion (535N) . The upper and lower bore portions (535N, 535W) define a shoulder (535S) therebetween.
The guide tube 54 is disposed within the central bore 535 in the movable tube 53, and has a small-diameter upper tube portion (54N) and a large-diameter lower tube portion (54W) that has an outer diameter larger than that of the small-diameter upper tube portion (54N) and that is connected fixedly toalower end of the small-diameterupper tube portion (54N) at an upper end. A shoulder (545) is definedbetweenthesmall-diameteruppertubeportion (54N) and the large-diameter lower tube portion (54W), and abuts against the shoulder (535S) of the movable tube 53. A washer 542 is sleeved around an upper end portion of the small-diameter upper tube portion (54N), and is disposed within the recess 536 in the top surface of the movable tube 53. A C-shaped retaining ring 542 engages an annular groove 543 in the smalldiameter upper tube portion (54N), and abuts against a top surface of the washer 541 so that the guide tube 54 is fixed within the movable tube 53. The guide tube 54 further has a uniform-diameter central bore 544.
The length-adjustable member 55 is configured as an air cylinder, and includes a positioning pin 551, a vertical upper movable rod 552 configured as a cylinder body, a vertical lower movable rod 553 configured as a piston rod, a connecting block 554, and a fluid valve 555 configured S as an air valve. The positioning pin 551 extends through a wall of the fixed tube 51 and into the connecting block 554 so as to fix the connecting block 554 within the fixed tube 51. The upper movable rod 552 is fixed within the movable tube 53. The lower movable rod 553 extends from a lower end of the upper movable rod 552. The connecting block 554 is connected fixedly to the lower movable rod 553. Because the connecting block 554 is connected fixedly to the fixed tube 51 by the positioning pin 551, the lower movable rod 553 isfixedwithin the fixed Lube 5 1. The upper movable rod 552 has a top surface that abuts against alower end of the guide tube 54 and that is formed with a vertical hollow cylindrical projection 556 which is inserted into the lower end of the guide tube 54. The fluid valve 555 is disposed at an upper end of the hollow cylindrical projection 556 of the upper movable rod 552.
The driving rod 56 is disposed movably within the guide tube 54, has a lower end 561 adjacent to the fluid valve 555, and an upper end 562 projecting from an upper end of the guide tube 54, and is movable vertically within the guide tube 54 to press against the fluid valve 555.
The controlling member 57 has a horizontal pivot rod portion 570 journalled on the upper frame 521 of the supporting frame 52, an actuator rod portion 571 connected fixedly to one end of the pivot rod portion 570, and a push plate 572 connected fixedly to the other end of the pivot rod portion 570. The actuator rod portion 571 can be actuated to rotate about the pivot rod portion 570 so that the push plate 572 presses a lower end of the driving rod 56 downwardly against the fluid valve 555, thereby permitting movement of the upper movable rod 552 relative to the lower movable rod 553. As such, the height of the seat members relative to the vehicle body2 canbeadjusted.
The positioning unit 58 includes a lower connecting member 581, a positioning sleeve tube 582, a pair of upper and lower bushings 583, an upper connecting member 584, and a positioning insert tube 585. The lower connecting member 581 is connected fixedly to the fixed tube 51 by, for example, welding. The positioning sleeve tube 582 is connected fixedly to the lower connecting member 581 by, for example, welding, extends parallel to the fixed tube 51, and has an inner diameter smeller then that of the fixed tube 51. The upper and lower bushings 583 are fixed respectively within upper andlower ends of the positioning sleeve tube 582. The upper connecting member 584 is connected fixedly to the movable tube 53 by, for example, welding. The positioning insert tube 585 is connected fixedly to the upper connecting member 584 by, for example, welding, extends parallel to the movable tube 53, has an outer diameter smaller than that of the movable tube 53, and is inserted into and disposed vertically and movably within the positioning sleeve tube 582. Because the positioning insert tube 585 is received fittingly within the upper and lower bushings 583, rotation of the seat S member 4 relative to the movable tube 53 can be prevented.
Whenitis desired toadjusU the height of the seat member 4, the controlling member 57 is actuated to cause the push plate 572 to press against the upper end 562 of the driving rod 56 such that the lower end 561 of the driving rod 56 contacts the fluid valve 555, as shown in Figs. 4 and 5, thereby permitting movement of the seat member 4 relative to the vehicle body 2. As such, the seat member 4 can be adjusted between an upper limit position shown in Fig. 4 and a lower limit position shown in Fig. 5.

Claims (9)

  1. CLAIMS: 1. A motor vehicle including: a vehicle body; a driving device for
    moving the vehicle body on the ground; a seat member disposed above the vehicle body; and a seat height-adjusting device including a vertical fixed tube fixed on the vehicle body, a vertical movable tube connected fixedly to and disposed under the seat member and inserted into and disposed vertically and movably within the fixed tube, a length-adjustable member including a vertical upper movable rod fixed within the movable tube, a vertical lower movable rod fixed within the fixed tube and connected movably to and disposed under the upper movable rod, and a fluid valve disposed on an assembly of the upper and lower movable rods, and acontrollingmemberconnectedbothefluidvalve end operable to activate the fluid valve so es to permit movement of the upper movable rod relative to the lower movable rod, thereby adjusting the height of the seat member relative to the vehicle body.
  2. 2. The motor vehicle as claimed in Claim l, wherein the length-adjustable member is configured as an air cylinder, the upper movable rod being configured as a cylinder body, the lower movable rod being configured as a piston rod, the fluid valve being configured as an air valve.
  3. 3. The motor vehicle as claimed in Claim 2, wherein the seat heightadjusting device further includes a supporting frame connected fixedly to and disposed under the seat member, and a driving rod disposed vertically and movably between the fluid valve and the controlling member, the movable tube being connected fixedly to and disposed under the supporting frame, the controlling member being operable to press a lower end of the driving rod against the fluid valve so as to permit relative movement between the upper and lower movable rods.
  4. 4. The motor vehicle as claimed in Claim 3, wherein the controlling member has a horizontal pivot rod portion journalled on the supporting frame, an actuator rod portion connected fixedly to one end of the pivot rod portion, end a push plate connected fixedly to the other end of the pivot rod portion, the actuator rod portion being rotatable about the pivot rod portion so that the push plate presses the driving rod downwardly against the fluid valve.
  5. 5. The motor vehicle as claimed in Claim 1, wherein the movable tubeis formed with acentralboretherethrough, the central bore having a smalldiameter upper bore portion and a large-diameter lower bore portion that is connected to a lower end of the upper bore portion at an upper end and that has a diameter larger than that of the upper bore portion, the seat height-adjusting device further including a guide tube that has a smalldiameteruppertube portion whichis fixed within the upper bore portion of the centralborein the movable S tube, a large-diameter lower tube portion which is connected fixedly to the small-diameter upper tube portion at an upper end and which has an outer diameter larger than that of the smalldiameter upper tube portion, end a uniform-diameter central bore, the upper movable rod of the length-adjustable member having a top surface that abuts against a lower end of the guide tube and that is formed with a vertical hollow cylindricalprojection which is insertedinto the lower end of the guide tube, said fluid valve being disposed at an upper end of the hollow cylindrical projection oftheuppermovablerodofthelength- adjustable member, the driving rod being disposed movably within the guide tube and movable within the guide tube to press against the fluid valve.
  6. 6. The motor vehicle as claimed in Claim 1, wherein the seat heightadjusting device further includes a positioning unit, the positioning unit including a positioning sleeve tube extending parallelto the fixed tube, and a positioning insert tube extending parallel to the movable tube, the positioning sleeve tube being connected fixedly to the fixed tube, the positioning insert tube being connected fixedly to the movable tube and being inserted into and disposed vertically and movably within the positioning sleeve tube so as to prevent rotation of the seat member about the movable tube.
  7. 7. The motor vehicle as claimed in Claim 6, wherein the seat heightadjusting device further includes a pair of upper and lower bushings that are fixed respectively within upper and lower ends of the positioning sleeve tube and that are disposed between the positioning sleeve tube and the positioning insert tube.
  8. 8. The motor vehicle as claimed in Claim 1, wherein the seat heightadjusting device furtherincludesa bushing that is fixed within the fixed tube and that is disposed between the fixed tube and the movable tube.
  9. 9. Amotorvehiclesubstantiallyashereinbeforedescribed with reference to and as illustrated in Figures 2 to of the accompanying drawings.
GB0406505A 2004-03-23 2004-03-23 Motorised wheelchair with seat height adjustment. Withdrawn GB2412306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0406505A GB2412306A (en) 2004-03-23 2004-03-23 Motorised wheelchair with seat height adjustment.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0406505A GB2412306A (en) 2004-03-23 2004-03-23 Motorised wheelchair with seat height adjustment.

Publications (2)

Publication Number Publication Date
GB0406505D0 GB0406505D0 (en) 2004-04-28
GB2412306A true GB2412306A (en) 2005-09-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0406505A Withdrawn GB2412306A (en) 2004-03-23 2004-03-23 Motorised wheelchair with seat height adjustment.

Country Status (1)

Country Link
GB (1) GB2412306A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1922956A2 (en) 2006-11-17 2008-05-21 ILinko Ltd Child's high chair
CN106335409A (en) * 2016-08-31 2017-01-18 富士房车（江苏）有限公司 Rotary regulation mechanism of hydraulic lifting seat
DE102020119358A1 (en) 2020-07-22 2022-01-27 Audi Aktiengesellschaft Arrangement for a vehicle seat
EP4112029A1 (en) 2021-06-30 2023-01-04 COSMOTECH Sp. z o.o. Hubless drive module and electric wheelchair using such module

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3626521B1 (en) * 2018-09-19 2021-04-28 Grammer Ag Cover device for vehicle seats

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756496A (en) * 1984-06-01 1988-07-12 Stabilus Gmbh Continuously adjustable levelling column
DE4024092A1 (en) * 1990-07-28 1992-02-06 Joachim Mey Kg Height adjustable dentist's chair - consists of foot operated control for gas spring, with control valve, and support disc
US5284312A (en) * 1991-07-01 1994-02-08 Airax, S.A. Pillar intended to form part of a furniture support equipped with a gas spring
WO1995005953A1 (en) * 1993-08-20 1995-03-02 Loglift Oy Ab Steering post for a work machine
DE10329542A1 (en) * 2002-06-28 2004-02-26 Möbelwerk Ilse GmbH & Co KG Lifting device for height adjustment of table, comprising three telescopic segments with two gas pressurized springs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756496A (en) * 1984-06-01 1988-07-12 Stabilus Gmbh Continuously adjustable levelling column
DE4024092A1 (en) * 1990-07-28 1992-02-06 Joachim Mey Kg Height adjustable dentist's chair - consists of foot operated control for gas spring, with control valve, and support disc
US5284312A (en) * 1991-07-01 1994-02-08 Airax, S.A. Pillar intended to form part of a furniture support equipped with a gas spring
WO1995005953A1 (en) * 1993-08-20 1995-03-02 Loglift Oy Ab Steering post for a work machine
DE10329542A1 (en) * 2002-06-28 2004-02-26 Möbelwerk Ilse GmbH & Co KG Lifting device for height adjustment of table, comprising three telescopic segments with two gas pressurized springs

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1922956A2 (en) 2006-11-17 2008-05-21 ILinko Ltd Child's high chair
EP1922956A3 (en) * 2006-11-17 2010-10-20 ILinko Ltd Child's high chair
US7905549B2 (en) 2006-11-17 2011-03-15 Ilinko Ltd. Highchair
CN106335409A (en) * 2016-08-31 2017-01-18 富士房车（江苏）有限公司 Rotary regulation mechanism of hydraulic lifting seat
CN106335409B (en) * 2016-08-31 2018-12-11 富士房车（江苏）有限公司 Hydraulic lifting seat rotation regulating mechanism
DE102020119358A1 (en) 2020-07-22 2022-01-27 Audi Aktiengesellschaft Arrangement for a vehicle seat
DE102020119358B4 (en) 2020-07-22 2023-01-19 Audi Aktiengesellschaft Arrangement for a vehicle seat
EP4112029A1 (en) 2021-06-30 2023-01-04 COSMOTECH Sp. z o.o. Hubless drive module and electric wheelchair using such module

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