Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1991-12-06
1993-07-06
Dayoan, D. Glenn
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187 89, B66B 516
Patent
active
052245705
ABSTRACT:
The brake catching device precludes the occurrence of excess speeds of an elevator car or counterweight in downward travel direction. At the front side of a housing there is provided a recess extending throughout the entire housing height, and at one end of such recess there is arranged a brake plate adjacent which there extends a free leg of a guide rail. A trapezoidal or tapered bracket member is inserted into the recess at the part thereof neighboring the free leg of the guide rail. This bracket member has a substantially rectangular-shaped extension protruding out of the housing. The bracket member is provided at the side confronting the guide rail with an upwardly inclined cam having a substantially U-shaped cross-section. Both front surfaces of the cam server as rolling tracks for roller shafts arranged at a cylindrical catching roller. At the lower portion of the cam there is provided a protrusion in the form of an additional control taper or incline for more rapidly urging the catching roller against the free leg of the guide rail. The recess is terminated at the side opposite the brake plate by a wedge taper against which bears the bracket member. A longitudinal slot extending in substantially vertical direction through the bracket member and deeply into the extension imparts a predetermined springiness or resilient characteristic to the bracket member.
REFERENCES:
patent: 2897920 (1959-08-01), Falter et al.
patent: 3762512 (1973-10-01), McIntyre
European Search Report and Annex.
Dayoan D. Glenn
Inventio AG
Noland Kenneth
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