B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
254/15
B66F 7/28 (2006.01)
Patent
CA 1062230
SAFETY LATCH FOR AUTOMOTIVE HOISTS Abstract of the Disclosure A safety latch preventing inadvertent lowering or dropping of an automotive hoist by means of a torsionally biased pawl shaft that automatically self engages with a lateral notch located in the lift at hoist operating height. The backside of a vertically movable gear rack attached to the hoist includes the pawl notch near its lower end and which when raised cooperates with the pawl shaft for effecting a latching relation therewith. The pawl shaft is slotted to embrace the gear rack and is manually releasable for permitting hoist descent by a partial rotation which in one embodi- ment is effected by manually shifting a bi-stable locking rod. Reset for latching on subsequent ascent of the gear rack is effect- ed by descending engagement of the hoist bolster against the bi- stable locking rod. In an alternative embodiment release is ob- tained by raising a lift pin which similarly effects partial rota- tion of the biased pawl shaft. An auxiliary latch in the alterna- tive embodiment prevents self-reset of the pawl shaft until after the notch descends a distance beyond which the pawl shaft and notch could otherwise relatch. 1a
290474
Bishop Burton D.
Murray Lawrence E.
LandOfFree
Safety latch for automotive hoists does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety latch for automotive hoists, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety latch for automotive hoists will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-652862