CN-115702113-B - Elevator device

Abstract

The invention discloses an elevator device, which can improve the reliability of operation in the setting environment of an electric operator for operating an emergency stop device. The elevator device comprises a car (1), an emergency stop device (2) arranged on the car, and an electric operator (10) arranged on the car and used for enabling the emergency stop device to act, wherein the electric operator comprises a shell (30), a mechanism part positioned in the shell, and an operating rod (11) connected with the mechanism part and extending from the interior of the shell to the exterior of the shell through an opening part on the shell, the shell is provided with a covering member (32) for covering the opening part, and the operating rod is inserted into the covering member.

Inventors

• KUBO YOUSUKE
• HAYAKAWA TOMOHISA
• HIDETAKA ZANMA

Assignees

• 株式会社日立制作所

Dates

Publication Date

20260508

Application Date

20200629

Claims (11)

1. 1. An elevator apparatus comprising: A car; an emergency stop device provided to the car, and An electric operator provided in the car and operating the emergency stop device, The elevator apparatus is characterized in that, The electric operator includes: A housing; A mechanism part located inside the housing, and An operation lever connected to the mechanism portion, the operation lever extending from an inside of the housing to an outside of the housing through an opening portion on the housing, The housing has a cover member covering the opening portion, The operating lever is inserted through the cover member, The cover member has a slit extending in a moving direction of the operation lever.
2. 2. Elevator arrangement according to claim 1, characterized in that, The electric operator includes a plate-like member provided to the operation lever in the housing.
3. 3. Elevator arrangement according to claim 2, characterized in that, The plate-like member is located above the mechanism portion.
4. 4. An elevator apparatus as defined in claim 3, wherein, The plate-like member is located directly below the cover member.
5. 5. The elevator apparatus of claim 4, wherein, The planar portion of the plate-like member covers the directly lower side of the cover member and is wider than the cover member.
6. 6. Elevator arrangement according to claim 1, characterized in that, The mechanism section of the electric operator includes: An armature connected to the operating lever; an electromagnet that attracts the armature in a standby state of the electric operator; A feed screw threadedly engaged with a nut portion provided to the electromagnet, and A motor driving the feed screw.
7. 7. The elevator apparatus of claim 6, wherein, The cover member is located directly above the feed screw.
8. 8. Elevator arrangement according to claim 2, characterized in that, The mechanism section of the electric operator includes: An armature connected to the operating lever; an electromagnet that attracts the armature in a standby state of the electric operator; A feed screw threadedly engaged with a nut portion provided to the electromagnet, and A motor for driving the feed screw, The plate-like member is provided at a connection portion between the operating lever and the armature on the operating lever.
9. 9. The elevator apparatus of claim 8, wherein, The planar portion of the plate-like member covers the armature.
10. 10. Elevator arrangement according to claim 1, characterized in that, The cover member has flexibility.
11. 11. Elevator arrangement according to claim 1, characterized in that, The slit is merely a slit without a gap.

Description

Elevator device Technical Field The present invention relates to an elevator apparatus including an emergency stop device operated by an electric operator. Background In order to constantly monitor the lifting speed of a car and to make the car in a predetermined overspeed state stop in an emergency, a speed limiter and an emergency stop device are provided in an elevator apparatus. In general, a car and a speed limiter are connected by a speed limiter rope, and when an overspeed state is detected, the speed limiter acts an emergency stop device on the car side by restraining the speed limiter rope, thereby emergency stopping the car. In such an elevator apparatus, since the speed governor rope of the long object is laid in the hoistway, it is difficult to save space and reduce cost. In addition, when the governor rope shakes, the structure in the hoistway and the governor rope are likely to interfere with each other. In this regard, an emergency stop device that does not use a speed limiter rope has been proposed. As a prior art relating to an emergency stop device that does not use a speed limiter rope, a technique described in patent document 1 is known. In this prior art, a brake unit having wedge-shaped brake shoes is provided at the lower part of the car, and a brake link is connected to the brake shoes. When the solenoid is operated in accordance with a command from the control unit, the brake link is moved upward by a mechanism linked with the solenoid. Thus, the brake shoe is pulled upward and brakes the car. Prior art literature Patent literature Patent document 1 Japanese patent laid-open publication No. 2013-189283 Disclosure of Invention Technical problem to be solved by the invention As described above, in the conventional emergency stop device operated by the actuator operated by the solenoid, there is a possibility that the reliability of operation is lowered when dust adheres to the movable mechanism portion of the actuator or the movable mechanism portion is damaged by contact with an article in the installation environment. Accordingly, the present invention provides an elevator apparatus including an emergency stop device capable of improving reliability of operation of an electric operator in an installation environment. Technical proposal adopted for solving the technical problems In order to solve the above problems, an elevator apparatus of the present invention includes a car, an emergency stop device provided on the car, and an electric operator provided on an upper portion of the car and operating the emergency stop device, the electric operator including a housing, a mechanism portion located inside the housing, and an operation lever connected to the mechanism portion, the operation lever extending from inside the housing to outside the housing through an opening portion in the housing, the housing having a cover member covering the opening portion, the operation lever being inserted through the cover member. Effects of the invention According to the present invention, the reliability of the operation of the electric operator in the installation environment can be improved. The problems, structures, and effects other than those described above will become more apparent from the following description of the embodiments. Drawings Fig. 1 is a schematic configuration diagram of an elevator apparatus according to an embodiment. Fig. 2 is a front view showing a mechanism portion housed in a housing of the electric operator of the embodiment. Fig. 3 is a front view showing a mechanism portion housed in a housing of the electric operator of the embodiment. Fig. 4 is a plan view of the electric operator showing the shape and the fixed position of the cover member in the embodiment. Fig. 5 is a plan view of the electric actuator showing the positional relationship between the cover member and the plate-like member in the embodiment. Detailed Description An elevator apparatus according to an embodiment of the present invention will be described below with reference to the drawings, according to examples. In the drawings, the same constituent elements are denoted by the same constituent elements or constituent elements having similar functions. Fig. 1 is a schematic configuration diagram of an elevator apparatus according to an embodiment of the present invention. As shown in fig. 1, the elevator apparatus includes a car 1, a position sensor 3, an electric operator 10, driving mechanisms (12 to 20), an upper tension rod 21, and an emergency stop device 2. The car 1 is suspended in a hoistway provided in a building by main ropes (not shown), and the car 1 is slidably engaged with the guide rail 4 by a guide device. When the main rope is friction-driven by a driving device (hoisting machine: not shown), the car 1 is lifted and lowered in the hoistway. The position sensor 3 is provided in the car 1, detects the position of the car 1 in the hoistway, and always detects the lifting speed of the