Hydraulic elevator apparatus

Details Hydraulic elevator apparatus Hydraulic elevator apparatus

B - Operations, Transporting

66

B

187/7

B66B 9/04 (2006.01) B66B 5/02 (2006.01)

Patent

CA 1040552

HYDRAULIC ELEVATOR APPARATUS ABSTRACT OF THE DISCLOSURE Hydraulic elevator apparatus including a cylinder and a fluid actuated plunger which supports an elevator car. A cylinder head seals against fluid leakage to the outside, and it guides the plunger as it moves relative to the cylin- der. The cylinder head includes a travel limit structure for the plunger which generates a hydraulic retarding force programmed by a resilient device which adjusts the hydraulic retarding force during a travel limit stop. The resilient device also adds its own retarding force to the plunger, to smoothly decelerate and stop the plunger with minimal impact forces on the cylinder head.

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