JPH11287272A5

JPH11287272A5 -

Info

Publication number: JPH11287272A5
Application number: JP1998103542A
Authority: JP
Filing date: 1998-03-31
Publication date: 2005-09-15

Description

【０００５】
【課題を解決するための手段】
請求項１の発明は、キャリパの筒部内に回動により軸方向に案内する機構を駆動するモータを収納し、該モータは前記筒部の内壁に装着されるステータと該ステータ内に回転自在に収納されかつ外周側にマグネットを設けたモータロータとからなり、前記ステータは、前記モータロータが前記キャリパに保持された状態で、前記筒部と前記モータロータとの間に挿入して組付けられてなり、前記モータの駆動により回動によって軸方向に案内する機構で前記パッドをブレーキロータに押圧して制動力を発生させるディスクブレーキにおいて、組付けた際における前記モータロータのマグネットの端部に比して筒部の開口端部を所定長さ突出して形成したことを特徴とする。
請求項２の発明は、キャリパの筒部内に回動により軸方向に案内する機構を駆動するモータを収納し、該モータは前記筒部の内壁に装着されるステータと該ステータ内に回転自在に収納されかつ外周側にマグネットを設けたモータロータとからなり、前記ステータは、前記モータロータが前記キャリパに保持された状態で、前記筒部と前記モータロータとの間に挿入して組付けられてなり、前記モータの駆動により回動によって軸方向に案内する機構で前記パッドをブレーキロータに押圧して制動力を発生させるディスクブレーキにおいて、前記ステータまたはモータロータを組付ける際に、モータロータのマグネットとモータステータとが円周方向に重なり合う前に、前記モータステータと前記筒部との嵌合部または前記モータロータと前記筒部との嵌合部が嵌合状態となることを特徴とする。 [0005]
[Means for solving the problem]
The invention of claim 1 is a disc brake in which a motor that drives a mechanism for guiding in the axial direction by rotation is housed within the cylindrical portion of a caliper, the motor comprising a stator attached to the inner wall of the cylindrical portion and a motor rotor that is housed rotatably within the stator and has a magnet on its outer periphery, the stator is inserted and assembled between the cylindrical portion and the motor rotor while the motor rotor is held by the caliper , and the mechanism that guides in the axial direction by rotation when driven by the motor presses the pads against the brake rotor to generate braking force, characterized in that the open end of the cylindrical portion is formed to protrude by a predetermined length compared to the end of the magnet of the motor rotor when assembled.
The invention of claim 2 is a disc brake in which a motor that drives a mechanism for guiding in the axial direction by rotation is housed within a cylindrical portion of a caliper, the motor comprising a stator attached to the inner wall of the cylindrical portion and a motor rotor that is housed rotatably within the stator and has a magnet on its outer periphery, the stator is inserted and assembled between the cylindrical portion and the motor rotor while the motor rotor is held by the caliper, and in which a braking force is generated by pressing the pads against the brake rotor using a mechanism that guides in the axial direction by rotation when driven by the motor, the invention is characterized in that when the stator or motor rotor is assembled, the fitting portion between the motor stator and the cylindrical portion or the fitting portion between the motor rotor and the cylindrical portion is fitted before the magnet of the motor rotor and the motor stator overlap in the circumferential direction.

【００４３】
【発明の効果】
請求項１の発明は、以上説明したように構成されたディスクブレーキであるから、モータロータをキャリパに保持させた状態で、ステータをキャリパとモータロータとの間に挿入する場合、筒部の開口端部におけるモータロータの端部に比して所定長さ突出して形成された部分が、ステータの挿入のガイドをなす。このため、モータロータに対してステータが良好に芯合せされた状態でキャリパ内に案内され、ステータがモータロータのマグネットに接触するようなことを防止でき、ひいてはマグネットの破損を防止できる。また、上述した従来技術では、ステータの組付けに際し、治具（ガイド）をその都度用意する必要があり、生産ラインへの治具（ガイド）の配置及びその取りはずし等の生産工程が伴い生産性の低下を招くものであったが、これに比して、キャリパの筒部に上述したようにステータ用のガイドが形成されることにより、ステータの組付け時にその都度ガイドを設ける必要がなく、その分、生産性の向上を図ることができる。
また、請求項２の発明は、前記ステータまたはモータロータを組付ける際に、モータロータのマグネットとモータステータとが円周方向に重なり合う前に、前記モータステータと前記筒部との嵌合部または前記モータロータと前記筒部との嵌合部が嵌合状態となるので、モータロータまたはステータの挿入時に、ステータがモータロータのマグネットに接触してマグネットの破損を招くようなことを防止できる。
[0043]
[Effects of the Invention]
The invention of claim 1 is a disc brake configured as described above. When the stator is inserted between the caliper and the motor rotor while the motor rotor is held by the caliper, the portion of the open end of the tubular portion that protrudes a predetermined length from the end of the motor rotor acts as a guide for inserting the stator. This allows the stator to be guided into the caliper while being properly aligned with the motor rotor, preventing the stator from contacting the magnet of the motor rotor and ultimately preventing damage to the magnet. Furthermore, in the prior art described above, a jig (guide) must be prepared each time the stator is assembled, which requires production steps such as arranging and removing the jig (guide) on the production line, resulting in reduced productivity. In contrast, by forming a stator guide on the tubular portion of the caliper as described above, it is not necessary to prepare a guide each time the stator is assembled, thereby improving productivity.
Furthermore, in the invention of claim 2, when assembling the stator or motor rotor, the mating portion between the motor stator and the tubular portion or the mating portion between the motor rotor and the tubular portion is mated before the magnet of the motor rotor and the motor stator overlap in the circumferential direction, thereby preventing the stator from coming into contact with the magnet of the motor rotor and causing damage to the magnet when inserting the motor rotor or stator.

Claims

A motor that drives a mechanism that guides the caliper in the axial direction by rotation is housed in the cylindrical portion of the caliper.
The motor comprises a stator attached to the inner wall of the cylindrical portion, and a motor rotor rotatably housed within the stator and having a magnet on its outer periphery ,
the stator is inserted between the cylindrical portion and the motor rotor and assembled thereto with the motor rotor held by the caliper ,
In a disc brake in which a braking force is generated by pressing the pad against the brake rotor using a mechanism that guides the pad in the axial direction by rotation driven by the motor,
A disc brake characterized in that the open end of the cylindrical portion is formed to protrude by a predetermined length compared to the end of the magnet of the motor rotor when assembled.

A motor that drives a mechanism that guides the caliper in the axial direction by rotation is housed in the cylindrical portion of the caliper.
The motor comprises a stator attached to the inner wall of the cylindrical portion, and a motor rotor rotatably housed within the stator and having a magnet on its outer periphery,
the stator is inserted between the cylindrical portion and the motor rotor while the motor rotor is held by the caliper, and assembled thereto;
In a disc brake in which a braking force is generated by pressing the pad against the brake rotor using a mechanism that guides the pad in the axial direction by rotation driven by the motor,
A disc brake characterized in that, when assembling the stator or motor rotor, the mating portion between the motor stator and the cylindrical portion or the mating portion between the motor rotor and the cylindrical portion is mated before the magnet of the motor rotor and the motor stator overlap in the circumferential direction.