Lift door with waterproof structure and mechanical parking device using same
The lift door with a pressing drive unit and elastic seals addresses the compatibility issues of existing doors, providing a cost-effective and reliable waterproof solution for lift doors.
JP2025180498APending Publication Date: 2025-12-11NISSEI CO LTD +1
Patent Information
- Application Number
- JP2024087867
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-12-11
AI Technical Summary
Technical Problem
Existing watertight doors and sliding door-type water stop devices do not effectively accommodate doors that rise and fall, and lack compatibility with lift doors, requiring complex structures for manual operation.
Method used
A lift door with a waterproof structure that includes two lift doors that can open and close vertically, featuring a pressing drive unit with a motor, gears, and eccentric pressing members to press the doors against a three-sided frame and threshold, using elastic members for sealing gaps.
Benefits of technology
Ensures waterproof functionality with a simpler and cost-effective structure, reducing the need for multiple drive units and preventing water ingress into mechanical parking devices.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2025180498000001_ABST
Abstract
To provide a lift door with a flood barrier function that stops water from entering a building in the event of a flood, etc.SOLUTION: A lifting door 12, which has a waterproof structure, includes at least two lifting doors 12 that can be opened and closed in the vertical direction with respect to a jamb 2 and a sill 3, at least one of the doors having the water stop structure, and is configured to include a first water stop member 100 that closes a gap between the door of the lifting door 12 and a vertical frame 22 of the jamb 2, and a second water stop member 110 that closes a gap between the door of the lifting door 12 and the sill 3. The door is configured to have a moving part 8 that is movable relative to the inside of the jamb 2 and is guided so as to be able to move up and down, and is configured to be pressed at least against the jamb 2 by a pressing drive part 6, and the pressing drive part 6 is configured to include a pressing member 64 and a pressing part 7, the pressing member 64 being made to act on the pressing part 7 to press the door at least against the inside of the jamb 2.SELECTED DRAWING: Figure 4
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Citation Information
Patent Citations
Sealing resin composition
JP1987089721A
Water cut-off door
JP2021036125A