Title:
GUIDE RAIL FIXING DEVICE FOR ELEVATORS AND ELEVATOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/106101
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a bracket fixing structure having improved durability against shear loads under abnormal conditions, such as horizontal earthquake loads, as well as repeated loads during normal travel of an elevator. A guide rail fixing device for elevators according to the present invention comprises: a wall-side rail bracket 11A that is fixed to the wall surface 1A side of a hoistway 1; a rail-side rail bracket 11B that is disposed on the rail 7, 8 side of the wall-side rail bracket 11A; a first bolt 15A that fixes the wall-side rail bracket 11A and the rail-side rail bracket 11B; and a second bolt 19A that is installed between the wall-side rail bracket 11A and the rail-side rail bracket 11B. The second bolt 19A is installed so that the tightening force on the wall-side rail bracket 11A and the rail-side rail bracket 11B is smaller than the tightening force by the first bolt 15A.
Inventors:
KANAYAMA YASUHIRO (JP)
WATANABE TOMOYASU (JP)
NAKAYAMA TETSUYA (JP)
NISHINO KATSUNORI (JP)
WATANABE TOMOYASU (JP)
NAKAYAMA TETSUYA (JP)
NISHINO KATSUNORI (JP)
Application Number:
PCT/JP2019/046337
Publication Date:
June 03, 2021
Filing Date:
November 27, 2019
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B66B7/02
Foreign References:
| JP2012126509A | 2012-07-05 | |||
| JP2019147645A | 2019-09-05 | |||
| JPH04182289A | 1992-06-29 | |||
| JPH0441385A | 1992-02-12 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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