Equalizer device for parking brake

Abstract

An equalizer device for a parking brake, in which paired engagement portions, with which paired output members coupled to brake devices of right and left wheels are respectively engaged, are formed so as to be symmetric with respect to an input portion, and which actuates the brake devices by pulling the paired output members, comprises: an equalizer body that is formed by connecting paired side plates, which extend parallel to each other from a back plate so as to form a U-shape; and a synthetic resin member that is fixedly arranged inside the equalizer body, wherein the equalizer body has paired engagement holes that are formed in the back plate, and that allow coupling members that couples the output members to the brake devices to extend outside the equalizer body and prevent the output members from passing through the engagement holes, paired insertion holes which are formed in a first side plate, and paired slits which are formed to connect each of the insertion holes to each of the engagement holes respectively, portions of the back plate, at which the engagement holes are formed, serving as the engagement portions, the synthetic resin member having a substantially flat plate shape that is arranged so as to face a portion of an inner face of the first side plate and comprising paired gate portions that are formed so as to partially block the respective paired insertion holes, that are elastically deformed to allow insertion of the output members into the equalizer body, and that return to their original form to prevent the output members from coming out of the equalizer body through the insertion holes, and an engagement lug that extends on an outer side of an outer edge of the first side plate and extends beyond an outer face of the first side plate, and is engaged with the outer face, and the synthetic resin member is fitted to the equalizer body by the engagement lug.

Description

[0001] References [0002] The disclosure of Japanese Patent Application No. 2010-246761 filed on Nov. 2, 2010 including specification, drawings and abstract is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to a balancer device for a parking brake, and more particularly to a technique for reducing the manufacturing cost of a balancer device including a device that prevents the output member from being detached from the balancer body. synthetic resin parts. Background technique [0004] There is a known balancer device for a parking brake in which a pair of engaging portions respectively engaged with a pair of output members coupled with braking devices of left and right wheels are formed symmetrically with respect to an input portion. When a pulling force for actuating the parking brake is applied to the input portion, the balancer device pulls the balancer device by pulling it in a state where the balance...

AI Technical Summary

Problems solved by technology

Therefore, bending work or the like for forming a flange on the balancer body must be performed, which thereby increases the manufacturing cost

Images