The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2025
Filed:
Nov. 15, 2023
Kone Corporation, Helsinki, FI;
Harri Makinen, Helsinki, FI;
Mikael Haag, Helsinki, FI;
Ville Malmiala, Helsinki, FI;
Markku Haivala, Helsinki, FI;
Joonas Jokela, Helsinki, FI;
Kone Corporation, Helsinki, FI;
Abstract
A method and arrangement for aligning elevator guide rails includes measuring the position of two opposite guide rails in respect of the direction between guide rails (DGB) direction and the back to front wall direction (BTF) direction with a plumb line and a measurement device arranged at each guide rail. Each measurement device includes a guide shoe supported on at least two guide surfaces of the guide rail, a measurement frame connected to the guide shoe, and a sensor for sensing the position of the plumb line in respect of the measurement frame. The twist of the guide rails is measured with a wire extending between the two measurement devices and an edge sensor arranged in connection with at least one of the two measurement devices.