Claims
- 1. A lift assembly for an implement-carrying vehicle having a frame, comprising in combination:
- a lift arm mounted on said frame for movement along a vertical path between a raised latched position and a lowered position, said arm having catch means thereon,
- an implement connected to said lift arm for vertical movement therewith,
- power means carried by said frame and operatively associated with said lift arm for effecting said movement,
- latch means mounted on said frame, said latch means including:
- a latch bolt having a non-circular body portion and a beveled forward portion defining a substantially planar cam face,
- said frame including cooperating bracket means journalling said bolt substantially perpendicular to said lift arm path (1) for limited rotational movement about an axis between a first operative position and a second inoperative position, and (2) for limited movement along said axis between a forward latching position with only a part of said cam face lying in said lift arm path, and a rearward inactive position,
- said frame and bracket means including an abutment wall provided with a non-circular opening therethrough complementary to said latch bolt body portion and through which said bolt extends,
- a torsion-compression spring about said latch bolt and rotatively and abuttingly engaging said non-circular bolt portion and connected at its other end to said bracket means, said spring relatively biasing said bolt toward said second inoperative position with said non-circular bolt portion and wall opening misaligned thereby to retain said bolt in said rearward inactive position, and,
- handle means on said bolt for rotating said bolt to said first operative position with said non-circular portion and opening aligned thereby permitting said spring to axially project said bolt toward said forward latching position and in said lift arm path,
- said lift arm in elevating to said raised position by said power means engaging said cam face and deflecting said bolt axially against said spring until said bevelled portion engages said lift arm catch means to latch said arm in raised position and from which said arm may be released by axial shifting of said bolt by said handle means.
Parent Case Info
This is a division of application Ser. No. 307,918, filed Nov. 20, 1972, now U.S. Pat. No. 3,811,338, which issued on May 21, 1974.
US Referenced Citations (15)
Foreign Referenced Citations (2)
Number |
Date |
Country |
580,851 |
Aug 1959 |
CA |
226,018 |
Dec 1924 |
UK |
Divisions (1)
|
Number |
Date |
Country |
Parent |
307918 |
Nov 1972 |
|