Foldable shock absorbing seat

• US 5,520,440 A
• Filed: 12/28/1994
• Issued: 05/28/1996
• Est. Priority Date: 12/28/1993
• Status: Expired due to Fees

• Current Assignee: Daewoo Heavy Industries Limited (Doosan Infracore Company Limited)
• Original Assignee: Daewoo Heavy Industries Limited (Doosan Infracore Company Limited)
• Inventors: Lee, Min K.
• Primary Examiner(s): Nelson, Jr., Milton
• Application Number:
  US08/365,628
• Time in Patent Office: 517 Days
• Field of Search: 297/378.1, 297/378.12, 297/354.1, 297/378.14, 297/353, 297/216.13
• US Class Current: 297/378.12
• CPC Class Codes: B60N 2/20 the back-rest being tiltable, e.g. to permit easy access B60N2/04, B60N2/22 , B60N2/3002 take precedence
• CPC Class Codes: B60N 2/503 attached to the backrest B60N2/504 takes precedence
• CPC Class Codes: B60N 2/506 Seat guided by rods
• CPC Class Codes: B60N 2/544 Compression or tension springs B60N2/542 takes precedence

Abstract

A foldable shock absorbing seat for industrial vehicles comprises a seat member; a back member extending upwardly from a rear end of the seat member; a first folding joint for allowing the back member to be folded relative to the seat member; a frame for supporting the seat member and the back member; a second folding joint provided on the frame for enabling the frame to be folded as the back member is folded toward the seat member; and a unit for absorbing shock inflicted on the seat member and the back member, and shock absorbing unit disposed between the frame and the seat and back members.

Claims

1. A foldable shock absorbing seat for industrial vehicles, which comprises:

a seat member;

a back member extending upwardly from a rear end of said seat member, said back member being formed with flanks on opposite sides thereof;

first folding joint means for allowing said back member to be folded relative to said seat member;

a frame having a lower segment for supporting said seat member and an upper segment for supporting said back member;

second folding joint means provided on said frame for enabling said frame to be folded as said back member is folded toward said seat member; and

means for absorbing shock inflicted on said seat member and said back member, said shock absorbing means disposed between said frame and said seat and back members, said first folding joint means comprising a connector member fixedly secured to at least one of opposite flanks of said seat member, said connector member having a first slot and a second slot open at its top end, and a pair of hinge pins affixed to opposite flanks of said back member, one of said hinge pins slidably engaging with said first slot, and a guide pin for removably engaging said second slot.

2. The foldable shock absorbing seat as recited in claim 1, wherein each of said hinge pins and said guide pin is formed with a stopper head at its free end.

3. The foldable shock absorbing seat as recited in claim 1, wherein said lower segment has a guide groove at its end adjacent to said upper segment, said upper segment having a sliding pin engageable with said guide groove.

4. The foldable shock absorbing seat as recited in claim 3, wherein said shock absorbing means includes a shock absorber cylinder and a pair of springs, each of which extends between said back member and said frame.