Pedal device

By employing a combination structure of a first housing and a second housing in the pedal device, the problem of poor assemblability of the brake pedal device is solved, achieving efficient assembly and lightweight design, while maintaining the multi-stage characteristics of the reaction force and the stability of the sensor signal.

CN117412889BActive Publication Date: 2026-06-09DENSO CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DENSO CORP
Filing Date
2022-03-24
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The use of large-scale fixtures for the coil springs in existing brake pedal devices leads to poor assembly, especially when using large coil springs with high elasticity. The fixtures need to apply large loads to make them flex, which affects assembly efficiency.

Method used

Design an organ-style pedal device, which adopts a combination structure of a first housing and a second housing. The first housing has a large opening to facilitate the installation of the elastic component of the reaction force generating mechanism in a non-deflecting state. The second housing is made of a high-rigidity material to support the elastic component and is fixed by bolts to avoid the use of deflection clamps.

Benefits of technology

It improves the assemblability of the pedal device, reduces foreign object intrusion, stabilizes pedal force characteristics, achieves lightweight and miniaturization, and maintains the multi-stage characteristics of reaction force and the reliability of sensor signals.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN117412889B_ABST
    Figure CN117412889B_ABST
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Abstract

A pedal pad (40) is swung about a prescribed axis (CL) by a depression operation by a driver's foot. A sensor unit (50) outputs a signal corresponding to a swing angle of the pedal pad (40). A reaction force generating mechanism (30) has elastic members (31 to 34) that generate a reaction force to a driver's pedal force applied to the pedal pad (40). A first housing (10) covers the reaction force generating mechanism (30) and has an opening portion on at least one side. A second housing (20) is provided on the side in the direction in which the pedal pad (40) swings with respect to the first housing (10). Also, the first housing (10) is configured so that the side on which the second housing (20) is provided has a largest opening portion (15) into which the elastic members (31 to 34) possessed by the reaction force generating mechanism (30) can be inserted without being deflected, and the largest opening portion (15) is closed by the second housing (20).
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