← Back to Patent Explorer
US4973104A Expired / Lapsed US ⏱️ 0.0 years remaining

Car seat

Assignee: Ikeda Corp
•
Filing: 1989-02-28
•
Granted: 1990-11-27
•
Expires: 2009-02-28
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A car seat comprising a seat slide mechanism, a seat reclining mechanism and, walk-in system. The walk-in system is provided with a wire to unlock the seat slide means and the wire is arranged to loosen when the seat-back is swung backward by the reclining mechanism.

Inventors

  • 👤 Keiji Nakayama
  • 👤 Shinobu Imai
  • 👤 Touru Kondo
  • 👤 Shoji Mizuno

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 02:30
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/20

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 256 words
A car seat comprising: a seat cushion; a seat slide means for slidably supporting the seat cushion forward and backward in relation to a car floor, said seat eslide means including a locking mechanism for locking or unlocking the sliding of the seat cushion; a seat-back; a reclining means including an arm fixed to said seat-back for swingably attaching the seat-back in a forward and backward direction relative to the seat cushion around a first axis, said first axis being positioned at a backward end of a base attached to the seat cushion; a walk-in system including said base and pivotally mounted to said seat cushion about a second axis being positioned at a forward end of said base for collapsively attaching the seat-back and the reclining means to the seat cushion around said second axis to a predetermined forward position and for unlocking the sliding of the seat cushion, said walk-in system including a wire to be pulled to unlock the locking mechanism of the seat slide means when the seat-back is collapsed forward around the second axis; and loosening means interconnecting said reclining means and said walk-in system and offset from said first and second axis for loosening the wire of the walk-in system when the seat-back is swung backward around the first axis by the reclining means so that a pulling distance of the wire stays constantly in each position of inclination of the seat-back when the seat-back is collapsed forward around the second axis by the walk-in system to the predetermined position.
Claim 2
Dependent Claim 256 words
A car seat comprising: a seat cushion; a seat slide means for slidably supporting the seat cushion forward and backward in relation to a car floor, said seat eslide means including a locking mechanism for locking or unlocking the sliding of the seat cushion; a seat-back; a reclining means including an arm fixed to said seat-back for swingably attaching the seat-back in a forward and backward direction relative to the seat cushion around a first axis, said first axis being positioned at a backward end of a base attached to the seat cushion; a walk-in system including said base and pivotally mounted to said seat cushion about a second axis being positioned at a forward end of said base for collapsively attaching the seat-back and the reclining means to the seat cushion around said second axis to a predetermined forward position and for unlocking the sliding of the seat cushion, said walk-in system including a wire to be pulled to unlock the locking mechanism of the seat slide means when the seat-back is collapsed forward around the second axis; and loosening means interconnecting said reclining means and said walk-in system and offset from said first and second axis for loosening the wire of the walk-in system when the seat-back is swung backward around the first axis by the reclining means so that a pulling distance of the wire stays constantly in each position of inclination of the seat-back when the seat-back is collapsed forward around the second axis by the walk-in system to the predetermined position.
Claim 3
Dependent Claim 87 words
A car seat according to claim 1, wherein the loosening means includes: a wire holder member pivotally mounted to and being rotated around the second axis when the seatback is collapsed by the walk-in system; a disc member fixed to said reclining means and being rotated around the first axis when the seatback is swung by the reclining means; and a link to connect the wire holder member and the disc member so that the wire loosens when the seat-back is swung backward by the reclining means.
Claim 4
Dependent Claim 67 words
A car seat according to claim 1, wherein the loosening means includes: a wire holder member fixed to said second axis and being rotated when the seat-back is collapsed by the walk-in system, said wire holder member including a sleeve to guide the wire, an end of said wire being attached to the locking mechanism and the other end of said wire being attached to said arm.
Claim 5
Dependent Claim 58 words
A car seat according to claim 1, wherein said walk-in system comprises a rod-like striker laterally projected from the side of the seat cushion and a latch swingably attached to the side of the seat cushion and energized toward the striker to hold with the striker, wherein the latch releases the striker when the seat-back is collapsed forward.

References Cited (Backward Citations)

US3940182A Cited
US4159147A Cited
US4615551A Cited
US4813741A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-11-26 1994-05-28 1994-11-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-11-26 1998-05-28 1998-11-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-11-26 2002-05-28 2002-11-27 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag