JP2008306890A - Electric motor and seat belt device equipped with the same - Google Patents

Electric motor and seat belt device equipped with the same Download PDF

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JP2008306890A
JP2008306890A JP2007153871A JP2007153871A JP2008306890A JP 2008306890 A JP2008306890 A JP 2008306890A JP 2007153871 A JP2007153871 A JP 2007153871A JP 2007153871 A JP2007153871 A JP 2007153871A JP 2008306890 A JP2008306890 A JP 2008306890A
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seat belt
electric motor
coil
brush
spring
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JP5144966B2 (en
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Takaaki Kimura
隆章 木村
Masahiro Mori
理宏 森
Yasutetsu Nomura
康哲 野村
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Takata Corp
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Takata Corp
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Priority to PCT/JP2008/058865 priority patent/WO2008152874A1/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14—Means for supporting or protecting brushes or brush holders
    • H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
    • H02K5/148—Slidably supported brushes

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small electric motor having a stable brush pressing force and insulation, and also to provide a seat belt device equipped with the same. <P>SOLUTION: The electric motor is provided with a frame, a bracket 31, a shaft, a rotor core, a coil, a commutator fixed on the shaft and connected to the coil, a plurality of brushes 32, 33 slidably contacting the circumferential surface of the commutator, and a plurality of energizing means 41, 42 for energizing each of the brushes 32, 33 to the commutator 24. The energizing means 41, 42 are provided with coil portions 41a, 42a, and abutting portions 41b, 42b extending from the coil portions 41a, 42a and abutting on the brushes 32, 33. The coil portions 41a, 42a are inserted into a holding portion 31c provided on the bracket 31 and an insulating member 50 is provided between the coil portions 41a, 42a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ロータにコミテータを通じて電源供給するブラシを付勢するための付勢手段を備えた電動機及びそれを備えたシートベルト装置の技術分野に属するものである。   The present invention belongs to the technical field of an electric motor including an urging means for urging a brush that supplies power to a rotor through a commutator, and a seat belt apparatus including the electric motor.

従来、電動機のブラシをコミテータへ向けて押圧するブラシスプリングを単一の部品として構成し、部品点数の低減化や組付性の向上を図ったものがある（特許文献１参照）。また、隣接するブラシスプリングの間に絶縁性の隔壁を介在させ、ブラシ間の短絡を防止する電動機がある（特許文献２参照）。
特開２００６−９４６４７号公報 特開２００６−３２０１５２号公報 Conventionally, a brush spring that presses a brush of an electric motor toward a commutator is configured as a single component to reduce the number of components and improve assemblability (see Patent Document 1). In addition, there is an electric motor in which an insulating partition is interposed between adjacent brush springs to prevent a short circuit between brushes (see Patent Document 2).
JP 2006-94647 A JP 2006-320152 A

しかしながら、特許文献１に記載された電動機では、ブラシスプリングを単一の部品として構成しているため、ブラシと当接するブラシスプリングの各延出部がコミテータを押圧する際に、一方の延出部のブラシ押圧力が他方の延出部のブラシ押圧力に影響し、それぞれのブラシをコミテータへ向けて押圧する押圧力が安定しないことがあった。また、一方の延出部の先端部分に絶縁コーティングを施す構成によりブラシ間の絶縁をしているので、ブラシとブラシスプリングとの当接部の摩擦等により絶縁コーティングが弱くなり、安定した絶縁を達成することができなかった。   However, in the electric motor described in Patent Document 1, since the brush spring is configured as a single component, each extension portion of the brush spring that comes into contact with the brush presses the commutator. The brush pressing force of the other affects the brush pressing force of the other extending portion, and the pressing force pressing each brush toward the commutator may not be stable. In addition, since the insulation between the brushes is provided by the configuration in which the tip of one of the extension portions is provided with an insulation coating, the insulation coating becomes weak due to friction of the contact portion between the brush and the brush spring, and stable insulation is achieved. Could not be achieved.

さらに、特許文献２に記載された電動機では、ブラシスプリングを周方向に並べ、その間に絶縁用の隔壁を備えるため、モータの径が大きくなる問題があった。   Furthermore, the electric motor described in Patent Document 2 has a problem that the diameter of the motor becomes large because the brush springs are arranged in the circumferential direction and an insulating partition is provided therebetween.

本発明は、このような事情に鑑みてなされたものであって、その目的は、小型で安定したブラシ押圧力及び絶縁性を有する電動機及びそれを備えたシートベルト装置を提供することである。   This invention is made | formed in view of such a situation, The objective is to provide the electric motor which has a small and stable brush pressing force and insulation, and a seatbelt apparatus provided with the same.

前述の課題を解決するために、請求項１の発明は、内周にマグネットを有するフレームと、前記フレームの開口を閉鎖するブラケットと、前記フレーム及び前記ブラケットに回転可能に支持されるシャフトと、前記シャフトに固定されるロータコアと、前記ロータコアに巻装されるコイルと、前記シャフトに固定され、前記コイルと接続されるコミテータと、前記コミテータの周面に摺接される複数のブラシと、前記各ブラシを前記コミテータに対して付勢する複数の付勢手段と、を備えた電動機において、前記複数の付勢手段は、コイル部と、前記コイル部から延伸し、前記ブラシに当接する当接部と、をそれぞれ有し、前記各コイル部は、前記ブラケットに設けた保持部に嵌挿され、前記各コイル部の間に絶縁部材を備えたことを特徴とする。   In order to solve the above-mentioned problem, the invention of claim 1 includes a frame having a magnet on an inner periphery, a bracket for closing an opening of the frame, a shaft rotatably supported by the frame and the bracket, A rotor core fixed to the shaft; a coil wound around the rotor core; a commutator fixed to the shaft and connected to the coil; and a plurality of brushes slidably in contact with a peripheral surface of the commutator; And a plurality of urging means for urging each brush against the commutator. The plurality of urging means extend from the coil portion and abut against the brush. Each coil portion is fitted into a holding portion provided on the bracket, and an insulating member is provided between the coil portions. That.

また、請求項２の発明は、前記絶縁部材は、孔を有する板状の部材からなり、前記保持部に嵌挿されることを特徴とする。   The invention according to claim 2 is characterized in that the insulating member is a plate-like member having a hole, and is fitted into the holding portion.

また、請求項３の発明は、前記絶縁部材は、前記各コイル部の径より大きいことを特徴とする。   The invention of claim 3 is characterized in that the insulating member is larger in diameter than the coil portions.

さらに、請求項４の発明は、緊急時に乗員を拘束するシートベルトと、このシートベルトを巻き取るシートベルトリトラクタと、このシートベルトリトラクタから引き出された前記シートベルトを乗員のショルダーの方へガイドするシートベルト用ガイドアンカーと、このシートベルト用ガイドアンカーからガイドされてきた前記シートベルトに摺動自在に支持されたタングプレートと、前記タングプレートが係脱可能に挿入係合されるバックルを少なくとも備えたシートベルト装置において、請求項１乃至請求項３のいずれかに記載された電動機を備え、前記電動機を備えた前記シートベルトリトラクタにより前記シートベルトを巻き取ることが可能であることを特徴とする。   Furthermore, the invention of claim 4 is directed to a seat belt for restraining an occupant in an emergency, a seat belt retractor for winding up the seat belt, and the seat belt pulled out from the seat belt retractor to guide the shoulder of the occupant. At least a seat belt guide anchor, a tongue plate slidably supported by the seat belt guided from the seat belt guide anchor, and a buckle into which the tongue plate is detachably inserted and engaged. A seat belt device comprising the electric motor according to any one of claims 1 to 3, wherein the seat belt can be wound up by the seat belt retractor provided with the electric motor. .

このように構成された本発明に係る電動機によれば、複数の付勢手段の各コイル部をブラケットに設けた一つの保持部に重ねて嵌挿したので、従来に比べ、付勢手段の設置スペースを小さくすることができ、電動機を小型化することができる。また、複数のブラシに対応する複数の付勢手段を設け、絶縁部材を複数の付勢手段の間に備えたので、安定したブラシ押圧力及び絶縁性を有する。また、絶縁部材は、各コイル部の径より大きいので、絶縁性を強くすることができる。さらに、この電動機を備えたシートベルト装置を小型化することができ、安定した作動をすることができる。   According to the electric motor according to the present invention configured as described above, since each coil portion of the plurality of urging means is overlapped and inserted into one holding portion provided on the bracket, the urging means is installed as compared with the conventional case. Space can be reduced and the electric motor can be miniaturized. In addition, since a plurality of urging means corresponding to the plurality of brushes are provided and the insulating member is provided between the plurality of urging means, the brush pressing force and the insulating property are stable. Moreover, since an insulating member is larger than the diameter of each coil part, insulation can be strengthened. Furthermore, the seat belt device provided with this electric motor can be reduced in size and can operate stably.

以下、図面を用いて、本発明の実施の形態を説明する。図１乃至図３は、本発明にかかる電動機の実施の形態を示す。図１は本実施形態の電動機の縦断面図、図２は本実施形態の電動機の平面図、図３は図１における本実施形態の電動機のブラケット部のＡ−Ａ線の横断面図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show an embodiment of an electric motor according to the present invention. 1 is a longitudinal sectional view of an electric motor according to the present embodiment, FIG. 2 is a plan view of the electric motor according to the present embodiment, and FIG. 3 is a transverse sectional view taken along line AA of the bracket portion of the electric motor according to the present embodiment in FIG. .

電動機１は、フレーム部１０、ロータ部２０及びブラケット部３０を備える。   The electric motor 1 includes a frame part 10, a rotor part 20, and a bracket part 30.

フレーム部１０は、フレームの一例としてのヨークフレーム１１、マグネット１２を有し、ヨークフレーム１１の内周面にマグネット１２が接着固定されている。本実施形態のマグネットは４つの磁極数を有し、ヨークフレーム１１にマグネット１２を接着した後、着磁する構成としている。また、ヨークフレーム１１は、ロータ部２０を支持する内面凹状の支持部１１ａとブラケット部３０を嵌装する開口部１１ｂを有する。   The frame portion 10 includes a yoke frame 11 and a magnet 12 as an example of a frame, and the magnet 12 is bonded and fixed to the inner peripheral surface of the yoke frame 11. The magnet of this embodiment has four magnetic pole numbers, and is configured to be magnetized after the magnet 12 is bonded to the yoke frame 11. Further, the yoke frame 11 has an inner concave support part 11 a that supports the rotor part 20 and an opening part 11 b that fits the bracket part 30.

ロータ部２０は、回転する際の中心軸となるシャフト２１と、シャフト２１に固定されるロータコア２２と、ロータコア２２に巻装されるコイル２３と、ブラケット部３０に対向する位置においてシャフト２１に固定され、コイル２３と接続されるコミテータ２４と、シャフト２１をヨークフレーム１１の支持部１１ａに回転可能に支持するベアリング２５と、シャフト２１をブラケット部３０に回転可能に支持するベアリング２６と、を有する。   The rotor portion 20 is fixed to the shaft 21 at a position facing the shaft 21 that is the central axis when rotating, the rotor core 22 fixed to the shaft 21, the coil 23 wound around the rotor core 22, and the bracket portion 30. A commutator 24 connected to the coil 23, a bearing 25 that rotatably supports the shaft 21 on the support portion 11 a of the yoke frame 11, and a bearing 26 that rotatably supports the shaft 21 on the bracket portion 30. .

ブラケット部３０は、樹脂等からなり、ヨークフレーム１１の開口部１１ｂを覆うブラケット本体３１と、ブラケット本体３１に設置され、コミテータ２４の周方向における配置角度を直角とし、コミテータ２４の軸線に直交する方向に摺動し、当接可能な第１ブラシ３２及び第２ブラシ３３と、第１ブラシ３２及び第２ブラシ３３に電源を供給するターミナル３４と、後述するシートベルト等の外部部材に結合するためのナット３５、ノイズを低減するチョークコイル３６、発火発煙対策のためのサーキットブレーカ３７、第１ブラシ３２及び第２ブラシ３３をコミテータ２４に押圧する付勢手段の一例としてのブラシスプリング４０等を有する。また、ブラケット本体３１は、シャフト２１を貫通支持する孔部３１ａ、ベアリング２６を内装する内面凹状の支持部３１ｂ、ブラシスプリング４０を支持する保持部の一例としての保持柱部３１ｃ等を有する。   The bracket portion 30 is made of resin or the like, and is installed on the bracket main body 31 covering the opening 11b of the yoke frame 11 and the bracket main body 31. The angle of arrangement of the commutator 24 in the circumferential direction is a right angle, and is orthogonal to the axis of the commutator 24. The first brush 32 and the second brush 33 that are slidable in contact with each other, the terminal 34 that supplies power to the first brush 32 and the second brush 33, and an external member such as a seat belt described later are coupled. A nut 35 for reducing noise, a choke coil 36 for reducing noise, a circuit breaker 37 for measures against ignition and smoke, a brush spring 40 as an example of urging means for pressing the first brush 32 and the second brush 33 against the commutator 24, and the like. Have. The bracket body 31 includes a hole portion 31 a that penetrates and supports the shaft 21, an inner concave support portion 31 b that houses the bearing 26, a holding column portion 31 c as an example of a holding portion that supports the brush spring 40, and the like.

図４は、本実施形態の電動機１におけるブラシスプリング４０の設置部分を示す図であり、図４（ａ）は正面図、図４（ｂ）は側面図である。ブラシスプリング４０は、第１スプリング４１及び第２スプリング４２からなり、ブラケット本体３１に形成された保持柱３１ｃにそれぞれの第１スプリングコイル部４１ａ及び第２スプリングコイル部４２ａを嵌挿され、支持される。第１スプリング４１及び第２スプリング４２は、それぞれ一端に第１ブラシ３２及び第２ブラシ３３に当接する第１当接部４１ｂ及び第２当接部４２ｂを有し、他端にブラケット本体３１の図示しない掛止部に当接する第１押さえ部４１ｃ及び第２押さえ部４２ｃを有する。   FIGS. 4A and 4B are diagrams illustrating an installation portion of the brush spring 40 in the electric motor 1 of the present embodiment, in which FIG. 4A is a front view and FIG. 4B is a side view. The brush spring 40 includes a first spring 41 and a second spring 42. The first spring coil portion 41a and the second spring coil portion 42a are inserted into and supported by a holding column 31c formed in the bracket body 31. The The first spring 41 and the second spring 42 have a first contact part 41b and a second contact part 42b that contact the first brush 32 and the second brush 33 at one end, respectively, and the other end of the bracket body 31 at the other end. It has the 1st press part 41c and the 2nd press part 42c which contact | abut to the latching part which is not shown in figure.

第１スプリングコイル部４１ａと第２スプリングコイル部４２ａとの間には、絶縁部材からなるスプリングスペーサ５０を備える。スプリングスペーサ５０は、薄板状の部材であり、孔５０ａを有し、保持柱部３１ｃに該孔５０ａを嵌挿する。また、スプリングスペーサ５０の外周径は、第１スプリングコイル部４１ａと第２スプリングコイル部４２ａの径より大きくすると絶縁性がより強くなる。   A spring spacer 50 made of an insulating member is provided between the first spring coil portion 41a and the second spring coil portion 42a. The spring spacer 50 is a thin plate-like member, has a hole 50a, and fits the hole 50a into the holding column part 31c. Further, when the outer peripheral diameter of the spring spacer 50 is larger than the diameters of the first spring coil portion 41a and the second spring coil portion 42a, the insulation becomes stronger.

このように、ブラシスプリング４０を設置する際は、まず、第１スプリング４１の第１スプリングコイル部４１ａを保持柱３１ｃに嵌挿し、第１押さえ部４１ｃをブラケット本体３１の図示しない掛止部に当接させ、第１当接部４１ｂを第１ブラシ３２に当接させる。次に、絶縁性を有するスプリングスペーサ５０を嵌挿する。そして、第２スプリング４２の第２スプリングコイル部４２ａを保持柱３１ｃに嵌挿し、第２押さえ部４２ｃをブラケット本体３１の図示しない掛止部に当接させ、第２当接部４２ｂを第２ブラシ３３に当接させる。   Thus, when installing the brush spring 40, first, the first spring coil portion 41a of the first spring 41 is fitted into the holding column 31c, and the first pressing portion 41c is used as a not-shown latching portion of the bracket body 31. The first contact portion 41 b is brought into contact with the first brush 32. Next, the insulating spring spacer 50 is inserted. Then, the second spring coil portion 42a of the second spring 42 is fitted and inserted into the holding column 31c, the second pressing portion 42c is brought into contact with a latching portion (not shown) of the bracket body 31, and the second contact portion 42b is made into the second. It abuts on the brush 33.

図５は、本実施形態の電動機１をシートベルト装置９０に備えた図を示す。シートベルト装置９０は、緊急時に乗員を拘束するシートベルト９１と、このシートベルト９１を巻き取るシートベルトリトラクタ９２と、このシートベルトリトラクタ９２から引き出されたシートベルト９１を乗員のショルダーの方へガイドするシートベルト用ガイドアンカー９３と、このシートベルト用ガイドアンカー９３からガイドされてきたシートベルト９１に摺動自在に支持されたタングプレート９４と、シートベルトの端部を固定する固定アンカー９５と、タングプレート９４が係脱可能に挿入係合されるバックル９６等を備え、電動機１を備えたシートベルトリトラクタ９２によりシートベルト９１を巻き取ることが可能である。   FIG. 5 shows a view in which the electric motor 1 of the present embodiment is provided in the seat belt device 90. The seat belt device 90 includes a seat belt 91 that restrains an occupant in an emergency, a seat belt retractor 92 that winds up the seat belt 91, and a seat belt 91 that is pulled out from the seat belt retractor 92 and guides the seat belt 91 toward the occupant's shoulder. A seat belt guide anchor 93, a tongue plate 94 slidably supported on the seat belt 91 guided from the seat belt guide anchor 93, a fixed anchor 95 for fixing an end of the seat belt, The tongue plate 94 includes a buckle 96 or the like that is detachably inserted and engaged, and the seat belt 91 can be wound up by the seat belt retractor 92 that includes the electric motor 1.

このように構成された本実施形態の電動機１によれば、第１スプリング４１及び第２スプリング４２の第１スプリングコイル部４１ａと第２スプリングコイル部４２ａとをブラケット本体３１に設けた一つの保持柱３１ｃに重ねて嵌挿し、第１スプリングコイル部４１ａと第２スプリングコイル部４２ａの間にスプリングスペーサ５０を備えたので、従来に比べ、第１スプリング４１及び第２スプリング４２の設置スペースを小さくすることができ、電動機１を小型化することができる。また、第１ブラシ３２及び第２ブラシ３３に対応する第１スプリング４１及び第２スプリング４２を設け、スプリングスペーサ５０を第１スプリング４１と第２スプリング４２の間に備えたので、安定したブラシ押圧力及び絶縁性を有する。さらに、この電動機１を備えたシートベルト装置９０を小型化することができると共に、安定した作動をすることができる。   According to the electric motor 1 of the present embodiment configured as described above, one holding in which the first spring coil portion 41a and the second spring coil portion 42a of the first spring 41 and the second spring 42 are provided in the bracket body 31. Since the spring spacer 50 is provided between the first spring coil portion 41a and the second spring coil portion 42a, the space for installing the first spring 41 and the second spring 42 is reduced compared to the conventional case. The electric motor 1 can be reduced in size. In addition, since the first spring 41 and the second spring 42 corresponding to the first brush 32 and the second brush 33 are provided and the spring spacer 50 is provided between the first spring 41 and the second spring 42, a stable brush pressing is achieved. Has pressure and insulation. Further, the seat belt device 90 including the electric motor 1 can be reduced in size and can be stably operated.

本発明に係る電動機によれば、従来に比べ、複数のスプリングの設置スペースを小さくすることができ、電動機を小型化することができる。また、安定したブラシ押圧力及び絶縁性を有することができる。さらに、この電動機を備えたシートベルト装置を小型化することができると共に、安定した作動をすることができる。   According to the electric motor according to the present invention, it is possible to reduce the installation space for the plurality of springs and to reduce the size of the electric motor as compared with the conventional motor. Moreover, it can have a stable brush pressing force and insulation. Furthermore, the seat belt device provided with this electric motor can be reduced in size and can be stably operated.

本実施形態の電動機の縦断面図である。It is a longitudinal cross-sectional view of the electric motor of this embodiment. 本実施形態の電動機の平面図である。It is a top view of the electric motor of this embodiment. 本実施形態の電動機の横断面図である。It is a cross-sectional view of the electric motor of this embodiment. 本実施形態のブラシスプリングの設置部分を示す図である。It is a figure which shows the installation part of the brush spring of this embodiment. 本実施形態の電動機を備えたシートベルト装置を示す図である。It is a figure which shows the seatbelt apparatus provided with the electric motor of this embodiment.

符号の説明Explanation of symbols

１…電動機、１０…フレーム部、１１…ヨークフレーム、１２…マグネット、２０…ロータ部、２１…シャフト、２２…ロータコア、２３…コイル、２４…コミテータ、２５，２６…ベアリング、３０…ブラケット部、３１…ブラケット本体、３１ａ…孔部、３１ｂ…支持部、３１ｃ…保持柱、３２…第１ブラシ、３３…第２ブラシ、３４…ターミナル、３５…ナット、３６…チョークコイル、３７…サーキットブレーカ、４０…ブラシスプリング、４１…第１スプリング、４１ａ…第１スプリングコイル部、４１ｂ…第１当接部、４１ｃ…第１押さえ部、４２…第２スプリング、４２ａ…第２スプリングコイル部、４２ｂ…第２当接部、４２ｃ…第２押さえ部、５０…スプリングスペーサ、９０…シートベルト装置、９１…シートベルト、９２…シートベルトリトラクタ、９３…シートベルト用ガイドアンカー、９４…タングプレート、９５…固定アンカー、９６…バックル DESCRIPTION OF SYMBOLS 1 ... Electric motor, 10 ... Frame part, 11 ... Yoke frame, 12 ... Magnet, 20 ... Rotor part, 21 ... Shaft, 22 ... Rotor core, 23 ... Coil, 24 ... Commitator, 25, 26 ... Bearing, 30 ... Bracket part, DESCRIPTION OF SYMBOLS 31 ... Bracket main body, 31a ... Hole part, 31b ... Support part, 31c ... Holding pillar, 32 ... 1st brush, 33 ... 2nd brush, 34 ... Terminal, 35 ... Nut, 36 ... Choke coil, 37 ... Circuit breaker, 40 ... brush spring, 41 ... first spring, 41a ... first spring coil part, 41b ... first contact part, 41c ... first pressing part, 42 ... second spring, 42a ... second spring coil part, 42b ... 2nd contact part, 42c ... 2nd press part, 50 ... Spring spacer, 90 ... Seat belt apparatus, 91 ... Seat belt, 2 ... seat belt retractor, 93 ... seat-belt guide anchor, 94 ... tongue plate, 95 ... fixed anchor, 96 ... Buckle

Claims (4)

内周にマグネットを有するフレームと、前記フレームの開口を閉鎖するブラケットと、前記フレーム及び前記ブラケットに回転可能に支持されるシャフトと、前記シャフトに固定されるロータコアと、前記ロータコアに巻装されるコイルと、前記シャフトに固定され、前記コイルと接続されるコミテータと、前記コミテータの周面に摺接される複数のブラシと、前記各ブラシを前記コミテータに対して付勢する複数の付勢手段と、を備えた電動機において、
前記複数の付勢手段は、コイル部と、前記コイル部から延伸し、前記ブラシに当接する当接部と、をそれぞれ有し、
前記各コイル部は、前記ブラケットに設けた保持部に嵌挿され、
前記各コイル部の間に絶縁部材を備えたことを特徴とする電動機。 A frame having a magnet on the inner periphery, a bracket for closing the opening of the frame, a shaft rotatably supported by the frame and the bracket, a rotor core fixed to the shaft, and a winding around the rotor core A coil, a commutator fixed to the shaft and connected to the coil, a plurality of brushes slidably contacted with a peripheral surface of the commutator, and a plurality of urging means for urging each brush against the commutator In an electric motor equipped with
The plurality of urging means each have a coil portion and a contact portion extending from the coil portion and contacting the brush,
Each of the coil portions is inserted into a holding portion provided on the bracket,
An electric motor comprising an insulating member between the coil portions. 前記絶縁部材は、孔を有する板状の部材からなり、前記保持部に嵌挿されることを特徴とする請求項１記載の電動機。   The electric motor according to claim 1, wherein the insulating member is made of a plate-like member having a hole, and is fitted into the holding portion. 前記絶縁部材は、前記各コイル部の径より大きいことを特徴とする請求項１又は請求項２に記載の電動機。   The electric motor according to claim 1, wherein the insulating member is larger in diameter than the coil portions. 緊急時に乗員を拘束するシートベルトと、このシートベルトを巻き取るシートベルトリトラクタと、このシートベルトリトラクタから引き出された前記シートベルトを乗員のショルダーの方へガイドするシートベルト用ガイドアンカーと、このシートベルト用ガイドアンカーからガイドされてきた前記シートベルトに摺動自在に支持されたタングプレートと、前記タングプレートが係脱可能に挿入係合されるバックルを少なくとも備えたシートベルト装置において、請求項１乃至請求項３のいずれかに記載された電動機を備え、前記電動機を備えた前記シートベルトリトラクタにより前記シートベルトを巻き取ることが可能であることを特徴とするシートベルト装置。   A seat belt that restrains the occupant in an emergency, a seat belt retractor that winds up the seat belt, a seat belt guide anchor that guides the seat belt pulled out from the seat belt retractor toward the shoulder of the occupant, and the seat 2. A seat belt device comprising at least a tongue plate slidably supported by the seat belt guided from a belt guide anchor, and a buckle into which the tongue plate is detachably inserted and engaged. A seat belt device comprising the electric motor according to any one of claims 1 to 3, wherein the seat belt can be wound up by the seat belt retractor provided with the electric motor.
JP2007153871A 2007-06-11 2007-06-11 Electric motor and seat belt device provided with the same Expired - Fee Related JP5144966B2 (en)

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JP2007153871A JP5144966B2 (en) 2007-06-11 2007-06-11 Electric motor and seat belt device provided with the same
PCT/JP2008/058865 WO2008152874A1 (en) 2007-06-11 2008-05-14 Electric motor and seatbelt device with the same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013005664A (en) * 2011-06-21 2013-01-07 Taiho Kogyo Co Ltd Motor and method of manufacturing the same
JP2020050296A (en) * 2018-09-28 2020-04-02 マツダ株式会社 Vehicle seat belt device

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Publication number Priority date Publication date Assignee Title
JPS3721112Y1 (en) * 1961-04-28 1962-08-15
JPS4734643Y1 (en) * 1967-09-20 1972-10-20
JPS5524078U (en) * 1978-08-05 1980-02-16
JPS59117261U (en) * 1983-01-25 1984-08-08 株式会社デンソー Motor brush holder device
JP2004217057A (en) * 2003-01-14 2004-08-05 Toyota Motor Corp Seat belt device for vehicle
JP2006320152A (en) * 2005-05-13 2006-11-24 Asmo Co Ltd Brush holder and motor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS3721112Y1 (en) * 1961-04-28 1962-08-15
JPS4734643Y1 (en) * 1967-09-20 1972-10-20
JPS5524078U (en) * 1978-08-05 1980-02-16
JPS59117261U (en) * 1983-01-25 1984-08-08 株式会社デンソー Motor brush holder device
JP2004217057A (en) * 2003-01-14 2004-08-05 Toyota Motor Corp Seat belt device for vehicle
JP2006320152A (en) * 2005-05-13 2006-11-24 Asmo Co Ltd Brush holder and motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013005664A (en) * 2011-06-21 2013-01-07 Taiho Kogyo Co Ltd Motor and method of manufacturing the same
JP2020050296A (en) * 2018-09-28 2020-04-02 マツダ株式会社 Vehicle seat belt device
JP7166864B2 (en) 2018-09-28 2022-11-08 マツダ株式会社 vehicle seat belt device

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JP5144966B2 (en) 2013-02-13

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