Door locking device
The door locking device addresses the size limitations of existing devices by using a guide member with separate connecting and sliding portions, enabling installation on smaller doors with a compact design and emergency unlocking feature.
JP7765083B2Active Publication Date: 2025-11-06UNION CORP
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Patent Information
- Application Number
- JP2022075890
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-05-02
- Publication Date
- 2025-11-06
- Estimated Expiration
- 2042-05-02
AI Technical Summary
Technical Problem
Existing door locking devices that are built into the vertical frame of a door are limited by the size of the case due to the need for a shaft-shaped fixing means, restricting their installation on doors with smaller dimensions.
Method used
A door locking device with a guide member that includes a first connecting portion, a second connecting portion, and a sliding portion, allowing for a compact design that can be installed on doors with smaller vertical frames, featuring a temporary fixing portion and an emergency unlocking unit.
Benefits of technology
Enables the device to be installed on doors with smaller vertical frames while maintaining functionality and safety, with a compact design that includes a temporary fixing mechanism and emergency unlocking feature.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a lock device of a door body which can be made compact so that a stile can be arranged on a smaller door body.SOLUTION: A lock device of a door body includes a locking member 10, an operation member 20, a rod 30, a guiding member 40, and a guided member 50. The locking member moves up and down between a locked state and an unlocked state, the locked state being a state in which the locking member locks the door body in a closed state, and the unlocked state being a state in which the locking member does not lock the door body. The operation member interlocks with the locking member and receives operation to move the locking member up and down. The rod connects the locking member and the operation member. The guiding member guides movement of the operation member. The guided member extends in a vertical direction and includes a first connection section, a second connection section, and a slide contact section. The first connection section is connected to the operation member. The second connection section is connected to the rod. The slide contact section is arranged in a position in the vertical direction different from a position of the first connection section, and comes into slide contact with the guiding member.SELECTED DRAWING: Figure 1
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