Traction machine base of elevator and elevator device

Patent metadata

Field	Value
Publication number	US-10266375-B2
Application number	US-201214383300-A
Country	US
Kind code	B2
Filing date	May 30, 2012
Priority date	May 30, 2012
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

A traction machine base includes a top member, a bottom member, a bottom member, first bolts, and second bolts. The top member is intended for supporting a traction machine. A plurality of attachment holes for fixing the top member are formed in the bottom member. A plurality of attachment holes for fixing the top member are formed in the bottom member. The first bolts pass through the attachment holes and fix the top member to the bottom member. The second bolts pass through the attachment holes and fix the top member to the bottom member. The top member is fixed to the bottom member using a smaller number of the first bolts than the number of the attachment holes. The top member is fixed to the bottom member using a smaller number of the second bolts than the number of the attachment holes.

First claim

The invention claimed is:

1. A traction machine base of an elevator, comprising:
a first member for supporting an elevator traction machine, the traction machine having a driving sheave on which a main rope is wound;
a second member in which a plurality of first attachment holes for fixing the first member are formed and the plurality of first attachment holes are arranged in a line in a first direction;
a third member in which a plurality of second attachment holes for fixing the first member are formed and the plurality of second attachment holes are arranged in a line in the first direction;
first bolts which fix the first member to the second member, each of the first bolts passing through one of the first attachment holes; and
second bolts which fix the first member to the third member, each of the second bolts passing through one of the second attachment holes,
wherein the first member is fixed to the second member using a smaller number of the first bolts than a number of the first attachment holes, and is fixed to the third member using a smaller number of the second bolts than a number of the second attachment holes, the base further comprising:
a support member for supporting a deflector sheave on which the main rope is wound, wherein the support member is not fixed to the first member;
a fourth member in which third attachment holes are formed;
a third bolt which passes through one of the first attachment hole and fixes the fourth member to the second member;
a fourth bolt which passes through one of the second attachment hole and fixes the fourth member to the third member;
a fifth member in which fourth attachment holes are formed;
a fifth bolt which passes through one of the first attachment holes and fixes the fifth member to the second member;
a sixth bolt which passes through one of the second attachment holes and fixes the fifth member to the third member;
seventh bolts which fix the support member to the fourth member, each of the seventh bolts passing through one of the third attachment holes; and
eighth bolts which fix the support member to the fifth member, each of the eighth bolts passing through one of the fourth attachment holes.

2. The traction machine base of an elevator according to claim 1 , wherein the traction machine faces in a second direction at a prescribed height; and
the first attachment holes and second attachment holes which are not used for fixing the first member are arranged in such a manner that in a case where the first member is fixed to the second member and the third member using these holes, the traction machine fixed to the first member faces in the second direction at the prescribed height.

3. The traction machine base of an elevator according to claim 1 , wherein
the plurality of first attachment holes are formed in a top surface of the second member along a longitudinal direction of the second member; and
the plurality of second attachment holes are formed in a top surface of the third member along a longitudinal direction of the third member.

4. The traction machine base of an elevator according to claim 1 ,
wherein the fifth member is fixed to one end of the second member and to one end of the third member and a notched portion for permitting the main rope to pass through is formed in a portion of the fifth member just above the deflector sheave.

5. The traction machine base of an elevator according to claim 1 , wherein the fourth member is arranged between the first member and the fifth member.

6. An elevator device, comprising:
the traction machine base according to claim 1 ;
a traction machine supported on the traction machine base;
a main rope wound on a driving sheave of the traction machine;
a deflector sheave on which the main rope is wound; and
a car and a counterweight which are suspended by the main rope in a shaft.

7. The elevator device according to claim 6 ,
wherein the first member is fixed to the second member and the third member using the first attachment holes and second attachment holes in dependence on of a horizontal distance between a position where the main rope departs from the driving sheave toward the car and a position where the main rope departs from the deflector sheave toward the counterweight to a horizontal distance between a suspension position of the car and a suspension position of the counterweight.

Assignees

• Tanaka Ryoji
• Nakamura Hideki
• Mizuno Shigeki
• Mitsubishi Electric Corp

Inventors

• Tanaka Ryoji
• Nakamura Hideki
• Mizuno Shigeki

Classifications

• B66B11/004 Primary

  in the machine room · CPC title

• B66B9/00

  Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12) · CPC title