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Hybrid pads for disc brakes

A technology of disc brakes and brake pads, which is applied in the direction of friction linings, mechanical equipment, etc., and can solve problems such as deterioration of braking feeling

Inactive Publication Date: 2007-11-21
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, as the wear progresses, the heights of the respective friction members become different, thus causing a problem that the brake feeling deteriorates

Method used

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  • Hybrid pads for disc brakes
  • Hybrid pads for disc brakes
  • Hybrid pads for disc brakes

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Embodiment Construction

[0027] Each of the other features and teachings disclosed above and below can be used independently or in combination with the other features and teachings to provide an improved hybrid brake pad. Representative examples of the present invention, which employ a number of these additional features and teachings independently or in combination with each other, will now be described in detail with reference to the accompanying drawings. This detailed description is only for teaching those of ordinary skill in the art further details for implementing preferred aspects of the invention, and is not intended to limit the scope of the invention. The scope of the invention is defined only by the claims. Therefore, combinations of features and steps disclosed in the following detailed description are not necessarily required to practice the invention in the broadest sense, and are taught merely to specifically describe representative examples of the invention. Furthermore, the individu...

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Abstract

A hybrid pad for a disc brake has first friction members and a second friction member. The first friction members can be positioned at a rotor rotation inlet portion and at a rotor rotation outlet portion of the pad. The second friction member can be positioned at a central portion of the pad. The first friction members include a Young's modulus E1, a friction coefficient mu1 and a sum of the sliding areas A1 of the paired first friction members to come into sliding contact with the disc rotor. The second friction member has a Young's modulus E2, a friction coefficient mu2 and a sliding area A2 to come into sliding contact with the disc rotor. The mu2 is higher than the mu1, the E2 is higher than the E1, and (E2xA2) / (E1xA1) is 0.8 or more and 1.2 or less.

Description

[0001] This application claims the priority of Japanese Patent Application Serial No. 2006-138988, 2006-328145, 2007-37681, the contents of which are incorporated herein by reference. technical field [0002] The invention relates to a hybrid brake pad for a disc brake comprising a plurality of friction members having different properties. Background technique [0003] In the prior art, hybrid brake pads are described in USP No. 4,926,978 ('978 patent), JP-A-2004-125081 ('081 patent), JP-A-2003-172385 ('385 patent), In JP-A-9-112606 ('606 patent) and JP-A-2000-120738 ('738 patent). [0004] The hybrid brake pad described in the '978 patent has friction members of varying durometers. The brake pad has a hard friction member at a central portion and soft friction members at both side portions. This configuration is intended to suppress uneven wear of the brake disc that is in sliding contact with the brake pad. [0005] The hybrid brake pad disclosed in the '081 patent has ...

Claims

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Application Information

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IPC IPC(8): F16D69/02
Inventor 冈村广正
Owner ADVICS CO LTD
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