Elevator governor and elevator
The elevator governor's innovative design with a ratchet gear, pawl, and locking mechanism prevents accidental release of the brake on the governor rope, maintaining stability by restricting reverse rotation of the ratchet gear, thus preventing unintended elevator car descent.
JP7868209B1Active Publication Date: 2026-06-01TOSHIBA ELEVATOR KK
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- TOSHIBA ELEVATOR KK
- Filing Date
- 2025-02-28
- Publication Date
- 2026-06-01
Smart Images
Figure 0007868209000001_ABST
Abstract
The objective is to obtain a novel configuration that can prevent the governor rope from being erroneously released by the elevator governor when the governor sheave rotates in reverse after the governor rope has stopped moving due to the governor's braking. [Solution] The elevator governor of this embodiment includes a movable member coupled to a ratchet gear and moving around a first rotational axis by the rotation of the ratchet gear, and a locking member movably supported on the frame and moving linearly to a limiting position that receives the movable member in response to the movable member's movement in the first rotational direction by the rotation of the ratchet gear, thereby restricting the movement of the movable member in the reverse direction and thus restricting the rotation of the ratchet gear in the reverse direction.
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