Apparatus and method for installing elevator guide rails
AssigneeWestinghouse Electric Corp.
InventorsLarry P. Tosato, Henry A. Wehrli, Robert C. Stewart, deceased
Life of this patent
Estimating the term…
Abstract
A guide rail section is pushed up a hoistway through a guide funnel by a hydraulic lift pad. The guide funnel is detachably mounted to a wall bracket. The guide rail section is retained in the hoistway while the lift pad is lowered. Another guide rail section is positioned on the lift pad and aligned with the guide rail section retained in the hoistway. The aligned guide rail sections are connected by a fishplate. The guide rail section retained in the hoistway is released and the lift pad is raised pushing the connected guide rail sections up the hoistway through guide funnels. The procedure is repeated until a stack of guide rail sections of the appropriate length is assembled.
Claims12
A system for installing elevator guide rails in a hoistway constructed of guide rail sections, comprising:
- a plurality of wall brackets located in vertical alignment along said hoistway;
- a plurality of guide funnels detachably mounted to said wall brackets;
- means for pushing said guide rail sections up said hoistway through said guide funnels;
- guide means detachably mounted to the first guide rail section pushed up said hoistway for smoothly guiding said guide rail section through said plurality of guide funnels;
- means for retaining said guide rail sections in said hoistway;
- and
- means for aligning a guide rail section colinearly with said guide rail sections retained in said hoistway such that said aligned guide rail section may be connected to said guide rail sections retained in said hoistway to provide said vertically straight guide rail.
A method for installing elevator guide rails in a hoistway constructed of guide rail sections, comprising the steps of:
- (a) attaching a guide means to a first guide rail section;
- (b) pushing said guide rail section up said hoistway;
- (c) retaining said guide rail section in said hoistway;
- (d) aligning a next guide rail section colinearly with said guide rail section in said hoistway;
- (e) connecting said aligned guide rail section to said guide rail section in said hoistway;
- (f) releasing said guide rail section retained in said hoistway;
- (g) repeating steps (b) through (f) until said guide rail of the desired length is assembled.
A method for installing elevator guide rails in a hoistway constructed of guide rail sections, comprising the steps of:
- (a) attaching a nose guide to said guide rail section;
- (b) positioning said guide rail section on a lift pad;
- (c) raising said lift pad a distance substantially equal to the length of said guide rail section such that said guide rail section is pushed up said hoistway;
- (d) retaining said guide rail section in said hoistway;
- (e) lowering said lift pad;
- (f) positioning a guide rail section on said lift pad;
- (g) clamping both the end of said guide rail section on said lift pad and the end of said guide rail in said hoistway such that said guide rail sections are vertically aligned;
- (h) connecting said aligned guide rail sections with a fishplate;
- (i) covering said fishplate with a slide cover;
- (j) unclamping said aligned guide rail section ends;
- (k) releasing said guide rail section retained in said hoistway;
- (l) repeating steps (c) through (k) until said guide rail of the desired length is assembled.
Dependencies are inferred from the claim text.