Safety latches for two post vehicle lift
AssigneeBendPak, Inc.
InventorJeffrey S. Kritzer
Life of this patent
Estimating the term…
Abstract
A safety latch mechanism for a vehicle lift includes a pawl support member secured to a support post guiding a lift carriage having vertically positioned stop blocks. A pawl plate rests on the pawl support member and is urged toward engagement with the stop blocks to arrest downward movement of the lift carriage. A release lever selectively retracts the pawl plate to release the carriage for downward movement. A cable connects between a pair of the pawl plates on a system with a pair of the lift units.
Claims27
A safety latch mechanism for a lift unit including an upstanding support post and a lift carriage slidably engaging and movable along the post, the mechanism comprising:
- (a) a plurality of stops positioned in vertically spaced relation along a surface of a lift carriage of a lift unit;
- (b) a latch support surface positioned on a support post of a lift unit;
- (c) a pawl resting on the latch support surface;
- (d) the pawl being movable between an engaged position to contact one of the plurality of stops in such a manner as to prevent downward movement of the lift carriage and a released position out of engagement with the stop , the pawl normally being urged toward the engaged position;
- and
- (e) a release member operably connected to the pawl to enable manual retraction of the pawl from the engaged position to the released position to thereby enable lowering of the lift carriage.
A safety latch mechanism for a lift unit including an upstanding support post and a lift carriage slidably engaging and movable along the post, the mechanism comprising:
- (a) a plurality of stop blocks secured in vertically spaced relation along a surface of a lift carriage of a lift unit;
- (b) a pawl support secured to a post surface of a support post of a lift unit;
- (c) a pawl resting on the pawl support;
- (d) the pawl being movable between an engaged position engaging one of the plurality of stop blocks to prevent downward movement of the lift carriage and a released position out of engagement with the stop blocks, the pawl normally being urged toward the engaged position;
- and
- (e) a release handle pivotally mounted on the support post and operably connected to the pawl to enable manual retraction of the pawl from the engaged position to the released position to thereby enable lowering of the lift carriage.
A safety latch mechanism for a lift unit including an upstanding support post and a lift carriage slidably engaging and movable along the post, the mechanism comprising:
- (a) a plurality of stop blocks secured in vertically spaced relation along a surface of a lift carriage of a lift unit, each of the blocks having a lower stop surface;
- (b) a pawl support member secured to a post surface of a support post of a lift unit, the pawl support member having an upper support surface;
- (c) a pawl having a lower end surface engaging the upper support surface of the pawl support member and an upper block surface opposite the lower end surface;
- (d) the pawl being movable between an engaged position in which the upper block surface will engage the lower stop surface of a stop block to prevent downward movement of the lift carriage and a released position in which the upper block surface is out of engagement with the lower stop surface of a stop block, the pawl normally being urged toward the engaged position;
- and
- (e) a release handle pivotally mounted on a surface of the support post and operably connected to the pawl in such a manner as to enable manual retraction of the pawl from the engaged position to the released position to thereby enable lowering of the lift carriage.
Dependencies are inferred from the claim text.