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Patent Searching and Data


Title:
JIG FOR REPLACING PUMP CHECK VALVE OF HYDRAULIC ELEVATOR AND PUMP CHECK VALVE REPLACING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/207786
Kind Code:
A1
Abstract:
Provided are a jig for replacing a pump check valve of a hydraulic elevator and a pump check valve replacing method by which the replacement of a pump check valve can be facilitated. A jig for replacing a pump check valve of a hydraulic elevator according to the present invention is provided with: a jack footing (19) which has a notch formed on the bottom portion along the lengthwise direction and is to be disposed below a valve (6), said notch corresponding to the level difference between the floor of the machine room (1) of a hydraulic elevator and the base of a pump (5); and a compact hydraulic jack (16) which is to be disposed on the upper surface of the jack footing (19) at a position directly below a pipe (11) projecting from the valve (6).

Inventors:
IRIE, Kazuki (7-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 06, 〒1000006, JP)
Application Number:
JP2018/017266
Publication Date:
October 31, 2019
Filing Date:
April 27, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC BUILDING TECHNO-SERVICE CO., LTD. (7-1 Yurakucho 1-chome, Chiyoda-ku Tokyo, 06, 〒1000006, JP)
International Classes:
B66B7/00; B66B9/04; B66F3/08; E04G25/00
Foreign References:
JP2003049535A2003-02-21
JP2001048485A2001-02-20
JPS6443091U1989-03-15
US20170182604A12017-06-29
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (Takada, Takahashi & Partners Konwa Bldg. 7F, 12-22 Tsukiji 1-chome, Chuo-k, Tokyo 45, 〒1040045, JP)
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