GB2292680A - Seat height adjustment mechanism - Google Patents

Seat height adjustment mechanism Download PDF

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Publication number
GB2292680A
GB2292680A GB9517770A GB9517770A GB2292680A GB 2292680 A GB2292680 A GB 2292680A GB 9517770 A GB9517770 A GB 9517770A GB 9517770 A GB9517770 A GB 9517770A GB 2292680 A GB2292680 A GB 2292680A
Authority
GB
United Kingdom
Prior art keywords
seat
tube
adjustment mechanism
height adjustment
frame
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.)
Granted
Application number
GB9517770A
Other versions
GB2292680B (en
GB9517770D0 (en
Inventor
Hugh Charles Christopher
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.)
Lear Corp Nottingham Ltd
Original Assignee
Lear Corp Nottingham 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
Priority claimed from GB9417701A external-priority patent/GB9417701D0/en
Application filed by Lear Corp Nottingham Ltd filed Critical Lear Corp Nottingham Ltd
Priority to GB9517770A priority Critical patent/GB2292680B/en
Publication of GB9517770D0 publication Critical patent/GB9517770D0/en
Publication of GB2292680A publication Critical patent/GB2292680A/en
Application granted granted Critical
Publication of GB2292680B publication Critical patent/GB2292680B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B60N2/161—Rods

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

Seat height adjustment mechanism comprises a tube 105, preferably forming part of the seat frame, which is rotatable, eg by a linkage operated by a rotatable handle, to adjust the height of the seat. A seat belt anchorage boss 120 is provided on the end of the tube. <IMAGE>

Description

SEAT HEIGHT ADJUSTMENT MECHANISM This invention relates to a seat height adjustment mechanism.
An existing seat height adjustment mechanism requires a fixed rear brace tube and a separate rear height adjustment operating tube. In the construction of the present invention the fixed rear brace tube is unnecessary.
In accordance with the present invention a seat height adjustment mechanism comprises a tube provided with and capable of rotating about a seat belt anchorage of the seat to adjust the seat height.
Preferably the mechanism comprises a support arm which is capable of rotating with the tube, the support arm being associated with a bracket on which the seat cushion pan is supported.
Preferabiy also the mechanism comprises a linkage attached to an operating device, operation of the device causing rotation of the tube via the linkage. The linkage may comprise a link arm capable of pivoting with the tube and a link pivotally connected between the link arm and the operating device.
In accordance with another aspect of the invention a vehicle seat frame incorporates a seat height adjustment mechanism as described above, this frame having two seat slides, one at each side of the frame, and the tube extends transversely between the two slides, one end of the tube being attached to the seat belt anchorage located on one of the slides.
Preferably the end of the tube attached to the seat belt anchorage is supported in a bearing on the said one slide.
One embodiment of the invention will now be described by way of example only with reference to the accompanying drawings of which Figure 1 shows a partial side view of the rear part of the frame; Figure 2 shows in detail the seat belt anchorage; and Figure 3 shows a plan view of a vehicle seat frame.
As shown in Figure 3 a seat frame 100 comprises two seat slides 108 and two cross tubes 105, 106 extending beiv*/een the upper moveable members of the slides 1 08. Both tubes brace the frame. One tube 106 is straight and is positioned near the front of the frame 100. The other tube 105 is cranked as shown and is positioned near the rear of the frame 1 00.
The front tube 106 carries two brackets 104 on which the cushion pan of the seat is supported. Two rear brackets 180, both adjacent the rear tube, support the rear part of the seat cushion pan.
Both ends of the rear cross tube 105 pass through and are connected to the upper members of the slides 1 08. On the outer side of the inboard slide the end of the rear tube is formed with a seat belt anchorage boss (see Figure 2).
As shown in more detail in Figures 1 and 2 the end of the tube passes through a bearing 1 30 provided in the upper member of the inboard seat slide 1 08. The tube 105 is thus able to rotate about the axis 0-0. The outer end of the tube is provided with a seat belt anchorage boss 1 20 centred on the seat belt anchorage point 50.
The seat height adjustment mechanism comprises a support arm 1 10 and a link arm 11 3 both welded to the rear cross tube 1 05. In the lowest position of the seat, as shown in Figure 2, the link arm 11 3 extends substantially vertically downwards, and the support arm 1 10 extends substantially horizontally forwards. At the forward end of the support arm 1 10 is a pivotal attachment 11 5 to the associated bracket 1 80 for the seat cushion pan.At the lower end of the link arm 11 3 is a pivotal attachment 1 25 to a forwardly extending link 128, which connects to an operating mechanism (not shown) positioned at the front of the seat. The operating mechanism may for example comprise a rotatable handle connected to a rack and pinion, whereby rotation of the handle moves the link forwards (as shown by arrow A) or backwards, depending on the direction of rotation.
In operation if the link 1 28 is moved forwards the support arm and the link arm and the rear cross tube 108 rotate about the axis 0-0. The bracket 1 80 and the rear part of the seat cushion supported thereon is then raised to the required height to suit the seat occupant. The maximum movement is shown at B.
A similar horizontal arm is positioned adjacent to the other seat slide and is attached to the other bracket 1 80 so that forward movement of the link and rotation of tube causes simultaneous movement of this other bracket.
In a modification, the other end of the tube 105 is provided with another seat belt anchorage on the other seat slide.

Claims (9)

CLAIMS:
1. A seat height adjustment mechanism comprising a tube provided with and capable of rotating about a seat belt anchorage of the seat to adjust the seat height.
2. A seat height adjustment mechanism according to Claim 1 comprising a support arm which is capable of rotating with the tube, the support arm being associated with a bracket on which the seat cushion pan is supported.
3. A seat height adjustment mechanism according to Claim 1 or Claim 2 comprising a linkage attached to an operating device, operation of the device causing rotation of the tube via the linkage.
4. A seat height adjustment mechanism according to Claim 3 wherein the linkage comprises a link arm capable of rotating with the tube and a link pivotally connected between the link arm and the operating device.
5. A vehicle seat frame incorporating a seat height adjustment mechanism according to any one of the preceding claims wherein the frame has two seat slides, one at each side of the frame, and the tube extends transversely between the two slides, one end of the tube being attached to the seat belt anchorage located on one of the slides.
6. A vehicle seat frame according to Claim 5 wherein the end of the tube attached to the seat belt anchorage is supported in a bearing on the said one slide.
7. A vehicle seat frame according to Claim 5 or Claim 6 wherein the tube provides bracing for the frame.
8. A seat height adjustment mechanism substantially as described herein with reference to and as shown in Figures 1 and 2 of the accompanying drawings.
9. A vehicle seat frame substantially as described herein with reference to and as shown in Figures 1, 2 and 3 of the accompanying drawings.
GB9517770A 1994-09-02 1995-08-31 Seat height adjustment mechanism Expired - Fee Related GB2292680B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9517770A GB2292680B (en) 1994-09-02 1995-08-31 Seat height adjustment mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9417701A GB9417701D0 (en) 1994-09-02 1994-09-02 Seat height adjustment mechanism
GB9517770A GB2292680B (en) 1994-09-02 1995-08-31 Seat height adjustment mechanism

Publications (3)

Publication Number Publication Date
GB9517770D0 GB9517770D0 (en) 1995-11-01
GB2292680A true GB2292680A (en) 1996-03-06
GB2292680B GB2292680B (en) 1997-01-22

Family

ID=26305553

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9517770A Expired - Fee Related GB2292680B (en) 1994-09-02 1995-08-31 Seat height adjustment mechanism

Country Status (1)

Country Link
GB (1) GB2292680B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751924A1 (en) * 1996-07-31 1998-02-06 Aisin Seiki DEVICE FOR ADJUSTING THE HEIGHT OF A VEHICLE SEAT

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623192A (en) * 1985-03-26 1986-11-18 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Seat

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623192A (en) * 1985-03-26 1986-11-18 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Seat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751924A1 (en) * 1996-07-31 1998-02-06 Aisin Seiki DEVICE FOR ADJUSTING THE HEIGHT OF A VEHICLE SEAT

Also Published As

Publication number Publication date
GB2292680B (en) 1997-01-22
GB9517770D0 (en) 1995-11-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040831