Elevator Shock Absorber
OwnerMitsuru Kato, Yasuhiko Masui +1inventors
InventorsMitsuru Kato, Yasuhiko Masui, Toshiyuki Fujii
Life of this patent
Estimating the term…
Abstract
A car shock absorber is positioned on a pit floor car between a car guide rail and the pit floor and/or between the car or counterweight and the pit floor. The car shock absorber has a shock absorbing body made of a deformable material in which a recess is formed. A pressing body is continuously engaged in the recess. When a shock load is input to a top part of the pressing body, the load is distributed in a direction perpendicular to inclined pressure and pressure-receiving surfaces, which are the contact surfaces between the pressing body and the shock absorbing body, thereby reducing the shock stress produced in the pit floor.
Claims30
An elevator shock absorber comprising:
- a shock absorbing body, which is configured to be positioned on a pit floor, that is formed of an deformable material, the shock absorbing body including a recess that has an inclined surface;
- a pressing body that has a surface that is inclined at substantially the same angle as the inclined surface of the recess of the shock absorbing body and that is configured to engage the inclined surface of the recess of the shock absorbing body,
- wherein the shock absorber is configured to:
- (a) be arranged on a pit floor opposite a car or counterweight;
- (b) contact the car or counterweight;
- and (c) moderate a shock when the car travels past a normal stop position at a bottom floor or top floor, and
- wherein the shock absorbing body is configured to deform so that the recess is widened by contact between the inclined surface of the shock absorbing body and the inclined surface of the pressing body, to absorb the shock when a shock load is input to the shock absorbing body by the car or counterweight via the pressing body.
An elevator shock absorber comprising:
- a shock absorbing body, which is configured to be positioned on a pit floor, that is formed of an deformable material, the shock absorbing body including a recess that has an inclined surface;
- a pressing body that has a surface that is inclined at substantially the same angle as the inclined surface of the recess of the shock absorbing body and that is configured to engage the inclined surface of the recess of the shock absorbing body,
- wherein the shock absorber is configured to:
- (a) be positioned between a guide rail that is configured to guide a car or counterweight and the pit floor;
- and (b) moderate a shock applied to the pit floor by the car or counterweight via the guide rail, and
- wherein the shock absorbing body is configured to deform so that the recess is widened by contact between the inclined surface of the shock absorbing body and the inclined surface of the pressing body, to absorb the shock when a shock load is input to the shock absorbing body by the car or counterweight via the pressing body.
Dependencies are inferred from the claim text.