Elevator device

Patent metadata

Field	Value
Publication number	US-12030745-B2
Application number	US-201917617002-A
Country	US
Kind code	B2
Filing date	Jun 17, 2019
Priority date	Jun 17, 2019
Publication date	Jul 9, 2024
Grant date	Jul 9, 2024

Abstract

An elevator device includes a guide rail (1), a car (3), and a guide device (4). The car (3) is movable in a horizontal direction at a specific height. The guide device (4) includes a supporting member (11) and a guide member (12). The guide member (12) is displaceable to a first position for restricting movement of the car (3) in the horizontal direction and guiding up-down movement of the car (3) and a second position where the guide member (12) does not come into contact with the guide rail (1) when the car (3) moves in the horizontal direction.

First claim

The invention claimed is:

1. An elevator device comprising:
a guide rail in an elevator shaft;
a car that moves up and down in the elevator shaft along the guide rail; and
a guide unit on the car to be opposed to the guide rail, wherein
the car is movable in a horizontal direction at a specific height,
a first side surface and a second side surface facing opposite directions to each other and an end face are formed in the guide rail,
the guide unit includes
a support fixed to the car, and
a guide supported by the support, and

the guide is displaceable to
a first position where the guide is opposed to the end face, the first side surface, and the second side surface of the guide rail to thereby restrict movement of the car in the horizontal direction and guide up-down movement of the car, and
a second position where the guide does not come into contact with the guide rail when the car moves in the horizontal direction,
wherein the guide is rotatable around a shaft which is perpendicular to a length of the guide rail which is a longest dimension of the guide rail to thereby be displaced to the first position and the second position,
wherein the guide includes two arms which are on opposite sides of the guide rail when the guide is in the first position,
the two arms are parallel to each other in both the first position and the second position,
the guide unit further includes a protrusion on the support and projecting upward, and
when the guide is placed in the first position, the protrusion is surrounded by the guide.

2. The elevator device according to claim 1 , wherein the entire guide is placed right above the car in the second position.

3. The elevator device according to claim 1 , wherein
the car has a polygonal shape in a plan view, and
the guide unit is at a corner of the polygonal shape.

4. The elevator device according to claim 1 , further comprising
a second guide rail in the elevator shaft, and
a second guide on the car to be opposed to the second guide rail, wherein
the car has, in a plan view, a polygonal shape having a first corner and a second corner which is an opposite corner of the first corner,
the guide unit is at the first corner, and
the second guide is at the second corner.

5. The elevator device according to claim 1 , wherein:
the guide is single piece such that the two arms of the guide are fixed in each position relative to each other.

6. An elevator device comprising:
a guide rail in an elevator shaft;
a car that moves up and down in the elevator shaft along the guide rail; and
a guide unit on the car to be opposed to the guide rail, wherein
the car is movable in a horizontal direction at a specific height,
a first side surface and a second side surface facing opposite directions to each other and an end face are formed in the guide rail,
the guide unit includes
a support fixed to the car, and
a guide supported by the support, and

the guide is displaceable to
a first position where the guide is opposed to the end face, the first side surface, and the second side surface of the guide rail to thereby restrict movement of the car in the horizontal direction and guide up-down movement of the car, and
a second position where the guide does not come into contact with the guide rail when the car moves in the horizontal direction,
wherein:
the guide rotates around a shaft to thereby be displaced to the first position and the second position,
the guide unit further includes a protrusion on the support and projecting upward, and
when the guide is placed in the first position, the protrusion is surrounded by the guide.

7. An elevator device comprising:
a guide rail in an elevator shaft, the guide rail including a flange section and a guide section, different from the flange section and perpendicular to the flange section, the guide section connected to a middle portion of the flange section along a length of the guide rail;
a car that moves up and down in the elevator shaft along the guide rail; and
a guide unit on the car to be opposed to the guide rail, wherein
the car is movable in a horizontal direction at a specific height,
a first side surface of the guide section and a second side surface of the guide section facing opposite directions to each other and being connected to the flange section of the guide rail,
the guide unit includes
a support fixed to the car, and
a guide supported by the support, and

the guide is displaceable to
a first position where the guide is opposed to the flange section, the first side surface of the guide section, and the second side surface of the guide section to thereby restrict movement of the car in the horizontal direction and guide up-down movement of the car, and
a second position where the guide does not come into contact with the guide rail when the car moves in the horizontal direction,
wherein the guide rotates as a single unit around a shaft to thereby be displaced to the first position and the second position,
wherein the guide includes two arms which are on opposite sides of the guide rail when the guide is in the first position,
the two arms are parallel to each other in both the first position and the second position,
the guide unit further includes a protrusion on the support and projecting upward, and
when the guide is placed in the first position, the protrusion is surrounded by the guide.

Assignees

• Mitsubishi Electric Corp

Inventors

• Kato Takehiro
• Watanabe Yasuo
• Morikura Taiki
• Takahashi Yoshinao

Classifications

• B66B7/04 Primary

  Riding means, e.g.} Shoes, Rollers, {between car and guiding means, e.g. rails, ropes (rollers adapted to match the shape of a special guiding means B66B7/02; vibration attenuation systems acting between car and its supporting frame B66B11/026) · CPC title

• B66B9/003 Primary

  for lateral transfer of car or frame, e.g. between vertical hoistways or to/from a parking position · CPC title