Vehicle seat sliding device

The vehicle seat slide device employs a cylindrical reinforcing member with a reinforcing bottom wall extending opposite to the upper side walls to prevent separation during collisions, addressing weight and cost concerns, and enhancing structural integrity.

JP2026096773APending Publication Date: 2026-06-15DELTA KOGYO CO LTD
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Patent Information

Application Number
JP2024210610
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2026-06-15

AI Technical Summary

Technical Problem

Existing vehicle seat slide devices face issues with the upper rail separating from the lower rail during collisions, and existing solutions to prevent this, such as using U-shaped cross-sectional reinforcing members, either increase weight or manufacturing costs.

Method used

A vehicle seat slide device with a cylindrical reinforcing member positioned inside the upper rail, featuring a reinforcing bottom wall extending opposite to the upper side walls, and a rectangular annular cross-sectional structure, which disperses collision loads and is easily assembled, reducing weight and manufacturing costs.

Benefits of technology

Effectively prevents the upper rail from separating from the lower rail during collisions without increasing weight or manufacturing costs, while maintaining structural integrity and reducing assembly time.

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Abstract

The present invention provides a vehicle seat slide device that can suppress the separation of the upper rail from the lower rail during a collision, while keeping weight and manufacturing costs down. [Solution] The vehicle seat slide device 1 includes an upper rail 12. The upper rail 12 includes an upper rail body 122 and a reinforcing member 126. The reinforcing member 126 is a rectangular tube-shaped member with a cylindrical shaft arranged along the sliding direction, and is inserted into the internal space formed by the upper upper wall 122a and a pair of left and right upper side walls 122b of the upper rail body 122. The reinforcing member 126 is formed such that the reinforcing upper wall 126c follows the lower surface of the upper upper wall 122a, each of the left and right pair of reinforcing side walls 126b follows the respective inner surfaces of the upper side walls 122b, and the reinforcing bottom wall 126a extends in the opposing direction of the left and right pair of upper side walls at a point spaced downward from the upper upper wall 122a.
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