JP2012007632A5 - - Google Patents

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Publication number
JP2012007632A5
JP2012007632A5 JP2010141551A JP2010141551A JP2012007632A5 JP 2012007632 A5 JP2012007632 A5 JP 2012007632A5 JP 2010141551 A JP2010141551 A JP 2010141551A JP 2010141551 A JP2010141551 A JP 2010141551A JP 2012007632 A5 JP2012007632 A5 JP 2012007632A5
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JP
Japan
Prior art keywords
piston
rotation
engagement
speed reduction
brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2010141551A
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Japanese (ja)
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JP5488909B2 (en
JP2012007632A (en
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Publication date
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Priority to JP2010141551A priority Critical patent/JP5488909B2/en
Priority claimed from JP2010141551A external-priority patent/JP5488909B2/en
Publication of JP2012007632A publication Critical patent/JP2012007632A/en
Publication of JP2012007632A5 publication Critical patent/JP2012007632A5/ja
Application granted granted Critical
Publication of JP5488909B2 publication Critical patent/JP5488909B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (2)

ディスクロータを挟んでその両側に配置される一対のブレーキパッドと、該一対のブレーキパッドの少なくとも一方を前記ディスクロータに押付けるピストンと、該ピストンが挿入されるシリンダとを有し、該シリンダへの液圧の供給によって前記ピストンを推進するキャリパ本体と、
該キャリパ本体に設けられて電動モータの回転により前記ピストンを推進し、推進した該ピストンの位置を保持可能なピストン保持機構とを備えたディスクブレーキにおいて、
前記ピストン保持機構は、前記電動モータによる回転を増力する減速機構と、該減速機構による回転を直線運動に変換して前記ピストンの推進方向に伸縮する回転直動変換機構と、前記減速機構の回転位置を保持する制動保持機構とを有し、
前記減速機構は、前記電動モータによって回転する少なくとも第１の回転部材及び第２の回転部材を有し、
前記制動保持機構は、前記第１の回転部材に設けられた係合部に係脱可能な係合部材と、該係合部材を移動可能に支持し、前記第２の回転部材の回転に伴い回転する支持部材とを有し、
該支持部材は、前記第２の回転部材が前記ピストンを推進する方向に回転したとき、前記係合部材を前記係合部に係合させる方向に移動させ、前記第２の回転部材が前記ピストンを後退させる方向に回転したとき、前記係合部材を前記係合部から離間させる方向に移動させることを特徴とするディスクブレーキ。 A pair of brake pads disposed on both sides of the disk rotor, a piston for pressing at least one of the pair of brake pads against the disk rotor, and a cylinder into which the piston is inserted; A caliper body that propels the piston by supplying a hydraulic pressure of
In the disc brake provided with the piston holding mechanism that is provided in the caliper body and propels the piston by the rotation of the electric motor and can hold the position of the propelled piston.
The piston holding mechanism includes a speed reduction mechanism that increases the rotation by the electric motor, a rotation / linear motion conversion mechanism that converts the rotation by the speed reduction mechanism into a linear motion and expands / contracts in the propulsion direction of the piston, and rotation of the speed reduction mechanism A brake holding mechanism for holding the position,
The speed reduction mechanism has at least a first rotating member and a second rotating member that are rotated by the electric motor,
The brake holding mechanism includes an engagement member that can be engaged with and disengaged from an engagement portion provided on the first rotation member, and the engagement member that is movably supported. As the second rotation member rotates, A rotating support member,
The support member moves the engagement member in a direction to engage the engagement portion when the second rotation member rotates in the direction of propelling the piston, and the second rotation member moves to the piston. When the disc is rotated in the direction of reversing the disc, the engaging member is moved in the direction of separating from the engaging portion. 前記係合部材は、前記支持部材に回転可能に支持され、前記係合部材の先端部が前記係合部に係脱するようになっており、その回転軸が前記支持部材に移動可能に支持されていることを特徴とする請求項１に記載のディスクブレーキ。 The engagement member is rotatably supported by the support member, and a distal end portion of the engagement member is engaged with and disengaged from the engagement portion, and the rotation shaft is supported by the support member so as to be movable. disc brake according to claim 1, characterized in that it is.
JP2010141551A 2010-06-22 2010-06-22 Disc brake Expired - Fee Related JP5488909B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010141551A JP5488909B2 (en) 2010-06-22 2010-06-22 Disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010141551A JP5488909B2 (en) 2010-06-22 2010-06-22 Disc brake

Publications (3)

Publication Number Publication Date
JP2012007632A JP2012007632A (en) 2012-01-12
JP2012007632A5 true JP2012007632A5 (en) 2013-05-30
JP5488909B2 JP5488909B2 (en) 2014-05-14

Family

ID=45538420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010141551A Expired - Fee Related JP5488909B2 (en) 2010-06-22 2010-06-22 Disc brake

Country Status (1)

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JP (1) JP5488909B2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6137805B2 (en) * 2012-07-26 2017-05-31 曙ブレーキ工業株式会社 Electric disc brake device
JP5928723B2 (en) * 2012-11-30 2016-06-01 株式会社アドヴィックス Electric braking device for vehicle
FR3016015B1 (en) * 2013-12-30 2017-03-31 Chassis Brakes Int Bv EPICYCLOIDAL TRAIN MOTOREDUCER AND DRUM BRAKE AND BRAKING DEVICE SO EQUIPPED
WO2015165555A1 (en) * 2014-04-29 2015-11-05 Lucas Automotive Gmbh Actuating device for an electromechanically actuatable vehicle brake
US10184536B2 (en) 2016-09-23 2019-01-22 Akebono Brake Industry Co., Ltd. Brake piston
KR101950234B1 (en) * 2017-06-08 2019-02-22 주식회사 유니크 Actuator for electronic parking brake
JP7040287B2 (en) * 2018-05-25 2022-03-23 トヨタ自動車株式会社 Vehicle braking device
KR102111356B1 (en) * 2018-07-26 2020-05-15 주식회사 만도 Actuator for electric parking brake
KR20200114711A (en) * 2019-03-29 2020-10-07 주식회사 만도 Actuator for electric parking brake
CN114110056A (en) * 2021-11-30 2022-03-01 浙江吉利控股集团有限公司 Brake caliper, rear axle assembly and vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4502749B2 (en) * 2004-09-01 2010-07-14 本田技研工業株式会社 Electric parking brake device and method for estimating actual position of brake pad in electric parking brake device
JP2008164111A (en) * 2006-12-28 2008-07-17 Hitachi Ltd Electric disc brake

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