PROBLEM TO BE SOLVED: To provide a small size electric parking brake driving device which can secure desired deceleration performance with a small number of components, and can suppress noise.SOLUTION: An electric motor 20 and a speed reduction mechanism including a belt transmission mechanism 30 and a gear transmission mechanism 40 are stored in a housing 10, and one end of a holding member 50 is fastened between a first case 11 and a second case 12. The speed reduction mechanism includes an internal gear 42, an external gear 43, an eccentric shaft member 41, and an Oldham coupling member 44, and rotation output of a driven pulley is further decelerated through the external gear, the Oldham coupling member, and the internal gear in accordance with rotation of the eccentric shaft member integrally rotating with the driven pulley 32, and torque is transmitted to an electric parking brake.SELECTED DRAWING: Figure 1
【課題】少ない部品点数で所望の減速性能を確保し得ると共に、騒音を低く抑え得る小型の電動パーキングブレーキ用駆動装置を提供する。【解決手段】ハウジング10内に、電動モータ20と、ベルト伝動機構30及び歯車伝動機構40から成る減速機構が収容され、第1のケース11と第2のケース12との間に保持部材50の一端部が挟持されている。減速機構は、内歯車42、外歯車43、偏心軸部材41及びオルダム継手部材44を有し、従動プーリ32と一体となって回転する偏心軸部材の回転に応じて、従動プーリの回転出力が外歯車、オルダム継手部材及び内歯車を介して更に減速され、電動パーキングブレーキにトルク伝達される。【選択図】図1
ELECTRIC PARKING BRAKE DRIVING DEVICE
電動パーキングブレーキ用駆動装置
2018-06-21
Patent
Electronic Resource
Japanese
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