WO2016042941A1 - Centrifugal-type clutch device - Google Patents

Centrifugal-type clutch device Download PDF

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Publication number
WO2016042941A1
WO2016042941A1 PCT/JP2015/072500 JP2015072500W WO2016042941A1 WO 2016042941 A1 WO2016042941 A1 WO 2016042941A1 JP 2015072500 W JP2015072500 W JP 2015072500W WO 2016042941 A1 WO2016042941 A1 WO 2016042941A1
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Prior art keywords
clutch
clutch device
clutch shoe
centrifugal
pressing
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PCT/JP2015/072500
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French (fr)
Japanese (ja)
Inventor
義夫 今西
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株式会社エクセディ
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Publication of WO2016042941A1 publication Critical patent/WO2016042941A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D2043/145—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members the centrifugal masses being pivoting

Definitions

  • the present invention relates to a centrifugal clutch device.
  • the centrifugal clutch device is configured to transmit or block the driving force from the engine to the driving wheels.
  • This centrifugal clutch mainly includes a drive plate and a clutch shoe (see Patent Document 1).
  • the drive plate is arranged to be rotatable by the driving force of the engine.
  • the clutch shoe swings to the outer peripheral side by centrifugal force and frictionally engages with the inner peripheral surface of the clutch housing.
  • the clutch housing rotates, and the driving wheel side member attached to the clutch housing also rotates, and the driving force from the engine is transmitted to the driving wheels.
  • the clutch shoe is pressed by the biasing means constituted by the disc spring and the plate, so that the number of parts increases. From the viewpoint of manufacturing cost and productivity, it is preferable to reduce the number of parts as much as possible.
  • An object of the present invention is to provide a centrifugal clutch device that can suppress the judder phenomenon with a small number of parts.
  • a centrifugal clutch device includes a drive plate, a plurality of shaft members, a plurality of clutch shoes, and a pressing plate.
  • the drive plate is disposed so as to be rotatable about a rotation axis.
  • Each shaft member extends in the axial direction from the drive plate.
  • Each clutch shoe is swingably attached to each shaft member.
  • the pressing plate has a flat surface portion and a pressing portion. The plane portion is annular and extends between the shaft members.
  • the pressing part is attached to the outer peripheral edge or the inner peripheral edge of the flat surface part. The pressing portion holds the clutch shoe toward the drive plate.
  • the pressing portion may be formed by bending a portion extending radially outward from the flat portion toward the clutch shoe. In this case, it is preferable that the outer peripheral edge of the plane portion is linear.
  • the pressing portion may be formed by bending a portion extending radially inward from the flat portion toward the clutch shoe. In this case, it is preferable that the inner peripheral edge of the plane portion is linear.
  • the flat portion bends in a direction away from the clutch shoe between the shaft members.
  • the pressing portion can sufficiently hold the clutch shoe by the elastic force of the flat portion returning to the clutch shoe side.
  • the distal end portion of the pressing portion may have a curved surface that comes into contact with the clutch shoe.
  • the centrifugal clutch device can suppress the judder phenomenon with a small number of manufacturing points.
  • FIG. 2 is a sectional view taken along line II-II in FIG. 1.
  • the perspective view of a centrifugal clutch apparatus The top view of the centrifugal clutch apparatus which concerns on the modification 1.
  • FIG. 5 is a sectional view taken along line VV in FIG. 4. Sectional drawing of the holding
  • FIG. 5 is a sectional view taken along line VV in FIG. 4. Sectional drawing of the holding
  • FIG. 1 is a plan view of a centrifugal clutch
  • FIG. 2 is a cross-sectional view taken along the line II-II in FIG. In FIG. 1, the description of the clutch housing is omitted.
  • the rotation axis means the rotation axis O of the centrifugal clutch device 100.
  • the axial direction means a direction along the rotation axis O.
  • the radial direction means the radial direction of a circle around the rotation axis O.
  • the radially outer side means the side away from the rotation axis O in the radial direction, and the radially inner side means the side approaching the rotation axis O in the radial direction.
  • the circumferential direction means the circumferential direction of a circle around the rotation axis O.
  • the centrifugal clutch device 100 is configured to transmit or block the driving force from the engine to the driving wheels.
  • the centrifugal clutch device 100 includes a drive plate 1, a plurality of shaft members 2, a plurality of clutch shoes 3, and a pressing plate 4.
  • the centrifugal clutch device 100 also includes a clutch housing 5, a hysteresis generating mechanism 8, and the like.
  • the drive plate 1 is disposed so as to be rotatable about the rotation axis O.
  • the drive plate 1 is attached to an input shaft 101 for inputting driving force from the engine. For this reason, the drive plate 1 rotates integrally with the input shaft 101.
  • the drive plate 1 has a boss portion 11 and a plate body portion 12.
  • the boss portion 11 has a cylindrical shape, and a spline 11a is formed on the inner peripheral surface. This spline 11 a is engaged with a spline 101 a formed on the outer periphery of the input shaft 101. For this reason, the boss part 11 rotates integrally with the input shaft 101.
  • the plate body 12 is a disk-shaped member and has a through hole 12a in the center. An inner peripheral end portion of the plate main body portion 12 is fixed to an outer peripheral end portion of the boss portion 11. The plate main body portion 12 rotates integrally with the boss portion 11.
  • each shaft member 2 extends from the drive plate 1 in the axial direction. That is, the central axis of the shaft member 2 extends substantially parallel to the axial direction.
  • Each shaft member 2 is cylindrical.
  • the shaft members 2 are arranged at intervals in the circumferential direction. Specifically, the shaft members 2 are arranged at equal intervals in the circumferential direction. In the present embodiment, the three shaft members 2 are arranged at equal intervals.
  • Each clutch shoe 3 is swingably attached to each shaft member 2. That is, each clutch shoe 3 can swing around each shaft member 2. Each clutch shoe 3 extends along the circumferential direction. Each clutch shoe 3 is disposed along the outer periphery of the drive plate 1.
  • Each clutch shoe 3 is composed of a plurality of laminated plate-like members. Each clutch shoe 3 is made of iron.
  • the outer peripheral surface of each clutch shoe 3 is constituted by a friction material 31. That is, each clutch shoe 3 has a clutch shoe main body 32 and a friction material 31 attached to the outer peripheral surface of the clutch shoe main body 32. When the friction material 31 is frictionally engaged with the inner peripheral surface of the clutch housing 5, the driving force from the engine is transmitted to the clutch housing 5.
  • the outer peripheral surface of each clutch shoe 3 means the surface which faces the radial direction outer side.
  • Each spring 6 connects each adjacent clutch shoe 3.
  • the clutch shoe 3 is biased radially inward by the spring 6.
  • Each clutch shoe 3 swings so as to move outward in the radial direction by centrifugal force.
  • the pressing plate 4 is disposed adjacent to each clutch shoe 3 in the axial direction. That is, in the axial direction, the drive plate 1, the clutch shoes 3, and the presser plate 4 are arranged in this order.
  • the holding plate 4 has a substantially triangular shape in plan view and has an opening 40 at the center.
  • the holding plate 4 is made of, for example, spring steel or tool steel.
  • the holding plate 4 is attached to each shaft member 2.
  • the pressing plate 4 has a plurality of through holes 43. Each shaft member 2 passes through each through hole 43. Thereby, the movement of the pressing plate 4 in the radial direction is restricted.
  • the movement of the pressing plate 4 in the axial direction is regulated by each stop member 7. Specifically, the movement of the pressing plate 4 in the direction away from the clutch shoe 3 is restricted by the stop member 7.
  • the retaining ring 7 can be exemplified as the retaining member 7.
  • each retaining ring 7 Since each retaining ring 7 is fixed to each shaft member 2, the holding plate 4 cannot move away from the clutch shoe 3.
  • Each shaft member 2 has an annular groove extending along the outer peripheral surface.
  • Each retaining ring 7 is fixed to each shaft member 2 by engaging with each annular groove.
  • the pressing plate 4 is disposed between each retaining ring 7 and each clutch shoe 3 in the axial direction.
  • the pressing plate 4 has a flat surface portion 41 and a pressing portion 42.
  • the flat portion 41 is annular and extends between the shaft members 2.
  • the plane part 41 is constituted by a plane. Specifically, the plane portion 41 has a plurality of attachment portions 41a and a plurality of connection portions 41b.
  • Each attachment portion 41 a is a portion attached to each shaft member 2. Specifically, each attachment portion 41 a has the above-described through hole 43. Each shaft member 2 passes through each through hole 43.
  • connection part 41b is a part which connects each attaching part 41a adjacent in the circumferential direction. That is, each connecting portion 41b extends between the mounting portions 41a.
  • connection part 41b and each attachment part 41a are formed of one member.
  • the outer edge in the radial direction of each connecting portion 41b is linear. That is, the outer peripheral edge of the flat portion 41 is formed in a straight line.
  • FIG. 3 is a perspective view of the centrifugal clutch device 100.
  • the retaining ring 7 is detached from the shaft member 2.
  • the pressing portion 42 is attached to the outer peripheral edge of the flat portion 41. The pressing part 42 presses each clutch shoe 3 to the drive plate 1 side.
  • each connection part 41b is bent so that the central part in the circumferential direction of each connection part 41b swells away from the clutch shoe 3.
  • the length of the pressing portion 42 in the axial direction is longer than the distance between the flat portion 41 and the clutch shoe 3 in the axial direction. For this reason, the pressing part 42 presses the flat part 41 in the axial direction, and the flat part 41 bends in a direction away from the clutch shoe 3.
  • the pressing portion 42 can sufficiently hold the clutch shoe 3 by the elastic force that the flat portion 41 tries to return.
  • the pressing portion 42 is a portion extending radially outward from the flat portion 41, and is formed by bending this portion toward the clutch shoe 3 side. That is, the plane part 41 and the pressing part 42 are configured by one member.
  • the portion of the pressing portion 42 that contacts the clutch shoe 3 substantially extends in the circumferential direction. That is, the portion of the pressing portion 42 that contacts the clutch shoe 3 extends in a direction substantially perpendicular to the direction in which the clutch shoe 3 swings.
  • the hysteresis generating mechanism 8 is a mechanism for giving a sliding resistance to the clutch shoe 3.
  • the hysteresis generating mechanism 8 includes a plurality of protrusions 81, a plurality of elastic members 82, and a plurality of grooves (not shown).
  • Each protrusion 81 protrudes from the drive plate 1 to each clutch shoe 3 side.
  • Each elastic member 82 is annular and is attached to each protrusion 81. The groove is formed in the clutch shoe 3.
  • the groove is formed on the surface of the clutch shoe 3 on the drive plate 1 side so as to be released radially inward.
  • the groove has a width shorter than the diameter of the elastic member 82. In this groove, the elastic member 82 is inserted in an elastically deformed state.
  • the clutch housing 5 is fixed to a member 102 on the drive wheel side.
  • the clutch housing 5 has a disc part 51 and a cylindrical part 52.
  • a member 102 is fixed to an inner peripheral end portion of the disc portion 51.
  • the cylindrical portion 52 is formed to extend from the outer peripheral end of the disc portion 51 to the vicinity of the drive plate 1 in the axial direction.
  • the clutch shoe 3 is disposed on the inner peripheral side of the cylindrical portion 52.
  • the centrifugal clutch device 100 configured as described above operates as follows.
  • the input shaft 101 is rotated by the power from the engine.
  • the drive plate 1 rotates integrally with the input shaft 101.
  • a centrifugal force acts on the clutch shoe 3, and the clutch shoe 3 moves outward in the radial direction against the urging force of the spring 6.
  • the clutch shoe 3 and the clutch housing 5 are frictionally engaged, and the clutch housing 5 rotates.
  • the driving force from the engine is transmitted to the driving wheels.
  • centrifugal clutch device 100 presses the clutch shoe 3 toward the drive plate 1 by the pressing plate 4, it is possible to suppress the occurrence of judder phenomenon. Further, the centrifugal clutch device 100 according to the present embodiment suppresses the occurrence of the judder phenomenon only by the pressing plate 4 and can suppress the judder phenomenon with a smaller number of parts than the conventional centrifugal clutch device.
  • the pressing portion 42 is attached to the outer peripheral edge of the flat portion 41, but the configuration of the pressing plate 4 is not particularly limited thereto.
  • the pressing portion 42 may be attached to the inner periphery of the flat portion 41.
  • the inner peripheral edge of the plane portion 41 is linear. That is, the pressing plate 4 has a circular shape in plan view and has a triangular opening 40 at the center.
  • the plane part 41 of the pressing plate 4 is comprised by one cyclic
  • the structure of the plane part 41 is not specifically limited to this.
  • the annular flat surface portion 41 may be formed by a plurality of members.
  • the distal end portion of the pressing portion 42 may have a curved surface 42a.
  • the curved surface 42 a is in contact with the clutch shoe 3.
  • the pressing plate 4 is attached to each shaft member, it is not specifically limited to this.
  • the pressing plate 4 may be attached to a shaft member extending from the drive plate 1 separately from each shaft member 2.

Abstract

A centrifugal-type clutch device (100) comprising a drive plate (1), a plurality of shaft members (2), a plurality of clutch shoes (3), and a press plate (4). Each clutch shoe (3) is attached so as to be swingable relative to each shaft member (2). The press plate (4) has planar sections (41) and pressing sections (42). The planar sections (41) are annular and extend between each shaft member (2). The pressing sections (42) are attached to the outer rim of the planar sections (41). The pressing sections (42) press the clutch shoes (3) on to the drive plate (1) side.

Description

遠心式クラッチ装置Centrifugal clutch device
　本発明は、遠心式クラッチ装置に関するものである。 The present invention relates to a centrifugal clutch device.
　遠心式クラッチ装置は、エンジンからの駆動力を駆動輪へと伝達したり遮断したりするように構成されている。この遠心式クラッチは、主に、ドライブプレートと、クラッチシューとを備えている（特許文献１参照）。 The centrifugal clutch device is configured to transmit or block the driving force from the engine to the driving wheels. This centrifugal clutch mainly includes a drive plate and a clutch shoe (see Patent Document 1).
　ドライブプレートは、エンジンの駆動力によって回転可能に配置されている。ドライブプレートの回転に伴い、クラッチシューは遠心力によって外周側に揺動し、クラッチハウジングの内周面と摩擦係合する。これによって、クラッチハウジングが回転するとともに、クラッチハウジングに取り付けられた駆動輪側の部材も回転し、エンジンからの駆動力が駆動輪へと伝達される。 The drive plate is arranged to be rotatable by the driving force of the engine. As the drive plate rotates, the clutch shoe swings to the outer peripheral side by centrifugal force and frictionally engages with the inner peripheral surface of the clutch housing. As a result, the clutch housing rotates, and the driving wheel side member attached to the clutch housing also rotates, and the driving force from the engine is transmitted to the driving wheels.
　上述したような遠心式クラッチ装置では、クラッチシューがクラッチハウジングと摩擦係合し始めるとき、クラッチシューが暴れることで、ジャダーと呼ばれる振動が発生する。特許文献１に記載の遠心式クラッチ装置は、皿バネで付勢されたプレートによってクラッチシューをドライブプレート側に押圧することによって、ジャダー現象を抑制している。 In the centrifugal clutch device as described above, when the clutch shoe begins to frictionally engage with the clutch housing, the clutch shoe is violated to generate vibration called judder. The centrifugal clutch device described in Patent Document 1 suppresses the judder phenomenon by pressing the clutch shoe toward the drive plate with a plate biased by a disc spring.
特開２００４－３６８０６号公報Japanese Patent Laid-Open No. 2004-36806
　上述した遠心式クラッチ装置では、皿バネ及びプレートによって構成された付勢手段によってクラッチシューを押圧しているため、部品点数が増えてしまう。製造コスト及び生産性の観点からは、部品点数をなるべく少なくすることが好ましい。 In the above-described centrifugal clutch device, the clutch shoe is pressed by the biasing means constituted by the disc spring and the plate, so that the number of parts increases. From the viewpoint of manufacturing cost and productivity, it is preferable to reduce the number of parts as much as possible.
　本発明の課題は、少ない部品点数でジャダー現象を抑制することができる遠心式クラッチ装置を提供することにある。 An object of the present invention is to provide a centrifugal clutch device that can suppress the judder phenomenon with a small number of parts.
　本発明のある側面に係る遠心式クラッチ装置は、ドライブプレートと、複数の軸部材と、複数のクラッチシューと、押さえプレートとを備えている。ドライブプレートは、回転軸を中心に回転可能に配置されている。各軸部材は、ドライブプレートから軸方向に延びている。各クラッチシューは、各軸部材に対して揺動可能に取り付けられている。押さえプレートは、平面部と、押さえ部とを有している。平面部は、環状であって、各軸部材間を延びている。押さえ部は、平面部の外周縁又は内周縁に取り付けられている。押さえ部は、クラッチシューをドライブプレート側に押さえている。 A centrifugal clutch device according to an aspect of the present invention includes a drive plate, a plurality of shaft members, a plurality of clutch shoes, and a pressing plate. The drive plate is disposed so as to be rotatable about a rotation axis. Each shaft member extends in the axial direction from the drive plate. Each clutch shoe is swingably attached to each shaft member. The pressing plate has a flat surface portion and a pressing portion. The plane portion is annular and extends between the shaft members. The pressing part is attached to the outer peripheral edge or the inner peripheral edge of the flat surface part. The pressing portion holds the clutch shoe toward the drive plate.
　この構成によれば、押さえプレートによってクラッチシューをドライブプレート側に押さえているため、ジャダー現象の発生を抑制することができる。また、ジャダー現象の発生を押さえプレートのみで抑制しており、従来の遠心式クラッチ装置よりも少ない部品点数でジャダー現象を抑制することができる。 According to this configuration, since the clutch shoe is pressed to the drive plate side by the pressing plate, the occurrence of judder phenomenon can be suppressed. Moreover, the occurrence of the judder phenomenon is suppressed only by the pressing plate, and the judder phenomenon can be suppressed with a smaller number of parts than the conventional centrifugal clutch device.
　押さえ部は、平面部から径方向外側に延びた部分をクラッチシュー側へと折り曲げることによって形成されてもよい。この場合、平面部の外周縁は、直線状であることが好ましい。 The pressing portion may be formed by bending a portion extending radially outward from the flat portion toward the clutch shoe. In this case, it is preferable that the outer peripheral edge of the plane portion is linear.
　押さえ部は、平面部から径方向内側に延びた部分をクラッチシュー側へと折り曲げることによって形成されてもよい。この場合、平面部の内周縁は、直線状であることが好ましい。 The pressing portion may be formed by bending a portion extending radially inward from the flat portion toward the clutch shoe. In this case, it is preferable that the inner peripheral edge of the plane portion is linear.
　好ましくは、平面部は、各軸部材の間において、クラッチシューから離れる方向に撓む。この構成によれば、平面部がクラッチシュー側に戻ろうとする弾性力によって、押さえ部はクラッチシューを十分に押さえることができる。 Preferably, the flat portion bends in a direction away from the clutch shoe between the shaft members. According to this configuration, the pressing portion can sufficiently hold the clutch shoe by the elastic force of the flat portion returning to the clutch shoe side.
　押さえ部の先端部は、クラッチシューに当接する湾曲面を有していてもよい。 The distal end portion of the pressing portion may have a curved surface that comes into contact with the clutch shoe.
　本発明に係る遠心式クラッチ装置によれば、少ない製造点数でジャダー現象を抑制することができる。 The centrifugal clutch device according to the present invention can suppress the judder phenomenon with a small number of manufacturing points.
遠心式クラッチ装置の平面図。The top view of a centrifugal clutch apparatus. 図１のII－II線断面図。FIG. 2 is a sectional view taken along line II-II in FIG. 1. 遠心式クラッチ装置の斜視図。The perspective view of a centrifugal clutch apparatus. 変形例１に係る遠心式クラッチ装置の平面図。The top view of the centrifugal clutch apparatus which concerns on the modification 1. FIG. 図４のＶ－Ｖ線断面図。FIG. 5 is a sectional view taken along line VV in FIG. 4. 変形例３に係る押さえ部の断面図。Sectional drawing of the holding | suppressing part which concerns on the modification 3. FIG.
　以下、本発明に係る遠心式クラッチ装置の実施形態について図面を参照しつつ説明する。図１は遠心式クラッチの平面図、図２は図１のII－II線断面図である。なお、図１では、クラッチハウジングの記載は省略している。 Hereinafter, an embodiment of a centrifugal clutch device according to the present invention will be described with reference to the drawings. 1 is a plan view of a centrifugal clutch, and FIG. 2 is a cross-sectional view taken along the line II-II in FIG. In FIG. 1, the description of the clutch housing is omitted.
　以下の説明において、回転軸とは、遠心式クラッチ装置１００の回転軸Ｏを意味する。軸方向とは、回転軸Ｏに沿った方向を意味する。径方向とは、回転軸Ｏを中心とした円の径方向を意味する。径方向外側とは、径方向において回転軸Ｏから離れる側を意味し、径方向内側とは、径方向において回転軸Ｏに近付く側を意味する。周方向とは、回転軸Ｏを中心とした円の周方向を意味する。 In the following description, the rotation axis means the rotation axis O of the centrifugal clutch device 100. The axial direction means a direction along the rotation axis O. The radial direction means the radial direction of a circle around the rotation axis O. The radially outer side means the side away from the rotation axis O in the radial direction, and the radially inner side means the side approaching the rotation axis O in the radial direction. The circumferential direction means the circumferential direction of a circle around the rotation axis O.
　図１及び図２に示すように、遠心式クラッチ装置１００は、エンジンからの駆動力を駆動輪に伝達したり遮断したりするように構成されている。遠心式クラッチ装置１００は、ドライブプレート１、複数の軸部材２、複数のクラッチシュー３、押さえプレート４を備えている。また、遠心式クラッチ装置１００は、クラッチハウジング５、ヒステリシス発生機構８なども備えている。 As shown in FIGS. 1 and 2, the centrifugal clutch device 100 is configured to transmit or block the driving force from the engine to the driving wheels. The centrifugal clutch device 100 includes a drive plate 1, a plurality of shaft members 2, a plurality of clutch shoes 3, and a pressing plate 4. The centrifugal clutch device 100 also includes a clutch housing 5, a hysteresis generating mechanism 8, and the like.
　ドライブプレート１は、回転軸Ｏを中心に回転可能に配置されている。ドライブプレート１は、エンジンからの駆動力を入力する入力軸１０１に取り付けられている。このため、ドライブプレート１は、入力軸１０１と一体的に回転する。 The drive plate 1 is disposed so as to be rotatable about the rotation axis O. The drive plate 1 is attached to an input shaft 101 for inputting driving force from the engine. For this reason, the drive plate 1 rotates integrally with the input shaft 101.
　詳細には、図２に示すように、ドライブプレート１は、ボス部１１とプレート本体部１２と、を有している。ボス部１１は、筒状であって、内周面にスプライン１１ａが形成されている。このスプライン１１ａが、入力軸１０１の外周に形成されたスプライン１０１ａに係合している。このため、ボス部１１は、入力軸１０１と一体的に回転する。 Specifically, as shown in FIG. 2, the drive plate 1 has a boss portion 11 and a plate body portion 12. The boss portion 11 has a cylindrical shape, and a spline 11a is formed on the inner peripheral surface. This spline 11 a is engaged with a spline 101 a formed on the outer periphery of the input shaft 101. For this reason, the boss part 11 rotates integrally with the input shaft 101.
　プレート本体部１２は、円板状の部材であって、中央に貫通孔１２ａを有している。プレート本体部１２の内周端部がボス部１１の外周端部に固定されている。プレート本体部１２は、ボス部１１と一体的に回転する。 The plate body 12 is a disk-shaped member and has a through hole 12a in the center. An inner peripheral end portion of the plate main body portion 12 is fixed to an outer peripheral end portion of the boss portion 11. The plate main body portion 12 rotates integrally with the boss portion 11.
　図１及び図２に示すように、各軸部材２は、ドライブプレート１から軸方向に延びている。すなわち、軸部材２の中心軸は、軸方向と実質的に平行に延びている。各軸部材２は、円柱状である。各軸部材２は、互いに周方向に間隔をあけて配置されている。詳細には、各軸部材２は、互いに周方向に等間隔で配置されている。なお、本実施形態では、３本の軸部材２が互いに等間隔で配置されている。 As shown in FIGS. 1 and 2, each shaft member 2 extends from the drive plate 1 in the axial direction. That is, the central axis of the shaft member 2 extends substantially parallel to the axial direction. Each shaft member 2 is cylindrical. The shaft members 2 are arranged at intervals in the circumferential direction. Specifically, the shaft members 2 are arranged at equal intervals in the circumferential direction. In the present embodiment, the three shaft members 2 are arranged at equal intervals.
　各クラッチシュー３は、各軸部材２に対して揺動可能に取り付けられている。すなわち、各クラッチシュー３は、各軸部材２を中心に揺動可能である。各クラッチシュー３は、周方向に沿って延びている。各クラッチシュー３は、ドライブプレート１の外周部に沿って配置されている。 Each clutch shoe 3 is swingably attached to each shaft member 2. That is, each clutch shoe 3 can swing around each shaft member 2. Each clutch shoe 3 extends along the circumferential direction. Each clutch shoe 3 is disposed along the outer periphery of the drive plate 1.
　各クラッチシュー３は、積層された複数の板状部材によって構成されている。各クラッチシュー３は、鉄製である。各クラッチシュー３の外周面は、摩擦材３１によって構成されている。すなわち、各クラッチシュー３は、クラッチシュー本体３２と、クラッチシュー本体３２の外周面に取り付けられた摩擦材３１とを有している。この摩擦材３１がクラッチハウジング５の内周面と摩擦係合することによって、エンジンからの駆動力がクラッチハウジング５に伝達される。なお、各クラッチシュー３の外周面とは、径方向の外側を向く面を意味する。 Each clutch shoe 3 is composed of a plurality of laminated plate-like members. Each clutch shoe 3 is made of iron. The outer peripheral surface of each clutch shoe 3 is constituted by a friction material 31. That is, each clutch shoe 3 has a clutch shoe main body 32 and a friction material 31 attached to the outer peripheral surface of the clutch shoe main body 32. When the friction material 31 is frictionally engaged with the inner peripheral surface of the clutch housing 5, the driving force from the engine is transmitted to the clutch housing 5. In addition, the outer peripheral surface of each clutch shoe 3 means the surface which faces the radial direction outer side.
　各スプリング６は、隣り合う各クラッチシュー３を連結している。このスプリング６によって、各クラッチシュー３は、径方向の内側に付勢されている。また、各クラッチシュー３は、遠心力によって径方向の外側に移動するように揺動する。 Each spring 6 connects each adjacent clutch shoe 3. The clutch shoe 3 is biased radially inward by the spring 6. Each clutch shoe 3 swings so as to move outward in the radial direction by centrifugal force.
　押さえプレート４は、軸方向において各クラッチシュー３と隣り合って配置されている。すなわち、軸方向において、ドライブプレート１、各クラッチシュー３、押さえプレート４の順に配置されている。押さえプレート４は、平面視が略三角形状であって、中央部に開口部４０を有している。押さえプレート４は、例えば、バネ鋼、又は工具鋼によって形成される。 The pressing plate 4 is disposed adjacent to each clutch shoe 3 in the axial direction. That is, in the axial direction, the drive plate 1, the clutch shoes 3, and the presser plate 4 are arranged in this order. The holding plate 4 has a substantially triangular shape in plan view and has an opening 40 at the center. The holding plate 4 is made of, for example, spring steel or tool steel.
　押さえプレート４は、各軸部材２に取り付けられている。詳細には、押さえプレート４は、複数の貫通孔４３を有している。この各貫通孔４３内を各軸部材２が貫通している。これによって、径方向における押さえプレート４の移動が規制される。 The holding plate 4 is attached to each shaft member 2. Specifically, the pressing plate 4 has a plurality of through holes 43. Each shaft member 2 passes through each through hole 43. Thereby, the movement of the pressing plate 4 in the radial direction is restricted.
　軸方向における押さえプレート４の移動は、各止め部材７によって規制される。詳細には、クラッチシュー３から離れる方向への押さえプレート４の移動が、止め部材７によって規制される。例えば、止め部材７として止め輪７を例示することができる。 The movement of the pressing plate 4 in the axial direction is regulated by each stop member 7. Specifically, the movement of the pressing plate 4 in the direction away from the clutch shoe 3 is restricted by the stop member 7. For example, the retaining ring 7 can be exemplified as the retaining member 7.
　各止め輪７が各軸部材２に固定されていることによって、押さえプレート４はクラッチシュー３から離れる方向に移動できない。各軸部材２は、外周面に沿って延びる環状溝を有している。各止め輪７は、この各環状溝と係合することによって、各軸部材２に固定されている。なお、押さえプレート４は、軸方向において、各止め輪７と各クラッチシュー３との間に配置されている。 Since each retaining ring 7 is fixed to each shaft member 2, the holding plate 4 cannot move away from the clutch shoe 3. Each shaft member 2 has an annular groove extending along the outer peripheral surface. Each retaining ring 7 is fixed to each shaft member 2 by engaging with each annular groove. The pressing plate 4 is disposed between each retaining ring 7 and each clutch shoe 3 in the axial direction.
　押さえプレート４は、平面部４１及び押さえ部４２を有している。平面部４１は、環状であって、各軸部材２間を延びている。平面部４１は、平面によって構成されている。詳細には、平面部４１は、複数の取付部４１ａ、複数の連結部４１ｂを有している。 The pressing plate 4 has a flat surface portion 41 and a pressing portion 42. The flat portion 41 is annular and extends between the shaft members 2. The plane part 41 is constituted by a plane. Specifically, the plane portion 41 has a plurality of attachment portions 41a and a plurality of connection portions 41b.
　各取付部４１ａは、各軸部材２に取り付けられる部分である。詳細には、各取付部４１ａは、上述した貫通孔４３を有している。この各貫通孔４３内を各軸部材２が貫通している。 Each attachment portion 41 a is a portion attached to each shaft member 2. Specifically, each attachment portion 41 a has the above-described through hole 43. Each shaft member 2 passes through each through hole 43.
　各連結部４１ｂは、周方向において隣り合う各取付部４１ａを連結する部分である。すなわち、各連結部４１ｂは、各取付部４１ａ間を延びている。各連結部４１ｂと各取付部４１ａとは、１つの部材によって形成されている。各連結部４１ｂの径方向外側の端縁は、直線状である。すなわち、平面部４１の外周縁は、直線状に形成されている。 Each connection part 41b is a part which connects each attaching part 41a adjacent in the circumferential direction. That is, each connecting portion 41b extends between the mounting portions 41a. Each connection part 41b and each attachment part 41a are formed of one member. The outer edge in the radial direction of each connecting portion 41b is linear. That is, the outer peripheral edge of the flat portion 41 is formed in a straight line.
　図３は、遠心式クラッチ装置１００の斜視図である。なお、図３において、止め輪７は軸部材２から外れた状態である。図１～図３に示すように、押さえ部４２は、平面部４１の外周縁に取り付けられている。押さえ部４２は、各クラッチシュー３をドライブプレート１側に押さえる。 FIG. 3 is a perspective view of the centrifugal clutch device 100. In FIG. 3, the retaining ring 7 is detached from the shaft member 2. As shown in FIGS. 1 to 3, the pressing portion 42 is attached to the outer peripheral edge of the flat portion 41. The pressing part 42 presses each clutch shoe 3 to the drive plate 1 side.
　押さえプレート４が取り付けられた状態において、平面部４１は、各軸部材２の間において、クラッチシュー３から離れる方向に撓んでいる。すなわち、各連結部４１ｂの周方向の中央部が、クラッチシュー３から離れる方向に膨らむように、各連結部４１ｂが撓んでいる。 In the state where the pressing plate 4 is attached, the flat surface portion 41 is bent in a direction away from the clutch shoe 3 between the shaft members 2. That is, each connection part 41b is bent so that the central part in the circumferential direction of each connection part 41b swells away from the clutch shoe 3.
　詳細には、軸方向における平面部４１とクラッチシュー３との間隔よりも、軸方向における押さえ部４２の長さが長い。このため、押さえ部４２が平面部４１を軸方向に押圧し、平面部４１がクラッチシュー３から離れる方向に撓む。この平面部４１が元に戻ろうとする弾性力によって、押さえ部４２がクラッチシュー３を十分に押さえることができる。 Specifically, the length of the pressing portion 42 in the axial direction is longer than the distance between the flat portion 41 and the clutch shoe 3 in the axial direction. For this reason, the pressing part 42 presses the flat part 41 in the axial direction, and the flat part 41 bends in a direction away from the clutch shoe 3. The pressing portion 42 can sufficiently hold the clutch shoe 3 by the elastic force that the flat portion 41 tries to return.
　押さえ部４２は、平面部４１から径方向の外側に延びた部分であり、この部分をクラッチシュー３側へ折り曲げることによって形成されている。すなわち、平面部４１と押さえ部４２とは、１つの部材によって構成されている。 The pressing portion 42 is a portion extending radially outward from the flat portion 41, and is formed by bending this portion toward the clutch shoe 3 side. That is, the plane part 41 and the pressing part 42 are configured by one member.
　押さえ部４２のクラッチシュー３と接触する部分は、実質的に周方向に延びている。すなわち、押さえ部４２のクラッチシュー３と接触する部分は、クラッチシュー３の揺動する方向と実質的に直行する方向に延びている。 The portion of the pressing portion 42 that contacts the clutch shoe 3 substantially extends in the circumferential direction. That is, the portion of the pressing portion 42 that contacts the clutch shoe 3 extends in a direction substantially perpendicular to the direction in which the clutch shoe 3 swings.
　図２に示すように、ヒステリシス発生機構８は、クラッチシュー３に摺動抵抗を与えるための機構である。ヒステリシス発生機構８は、複数の突出部８１、複数の弾性部材８２、及び複数の溝（図示省略）を有する。 As shown in FIG. 2, the hysteresis generating mechanism 8 is a mechanism for giving a sliding resistance to the clutch shoe 3. The hysteresis generating mechanism 8 includes a plurality of protrusions 81, a plurality of elastic members 82, and a plurality of grooves (not shown).
　各突出部８１は、ドライブプレート１から各クラッチシュー３側に突出している。各弾性部材８２は、環状であって、各突出部８１に装着されている。溝は、クラッチシュー３に形成されている。 Each protrusion 81 protrudes from the drive plate 1 to each clutch shoe 3 side. Each elastic member 82 is annular and is attached to each protrusion 81. The groove is formed in the clutch shoe 3.
　溝は、クラッチシュー３のドライブプレート１側の面において、径方向内側に解放するように形成されている。溝は弾性部材８２の直径よりも短い幅となっている。この溝内に、弾性部材８２は弾性変形した状態で挿入されている。 The groove is formed on the surface of the clutch shoe 3 on the drive plate 1 side so as to be released radially inward. The groove has a width shorter than the diameter of the elastic member 82. In this groove, the elastic member 82 is inserted in an elastically deformed state.
　クラッチハウジング５は、駆動輪側の部材１０２に固定されている。クラッチハウジング５は、円板部５１と、筒状部５２とを有している。円板部５１の内周端部には部材１０２が固定されている。 The clutch housing 5 is fixed to a member 102 on the drive wheel side. The clutch housing 5 has a disc part 51 and a cylindrical part 52. A member 102 is fixed to an inner peripheral end portion of the disc portion 51.
　筒状部５２は、軸方向において、円板部５１の外周端部からドライブプレート１の近傍まで延びて形成されている。この筒状部５２の内周側にクラッチシュー３が配置されている。 The cylindrical portion 52 is formed to extend from the outer peripheral end of the disc portion 51 to the vicinity of the drive plate 1 in the axial direction. The clutch shoe 3 is disposed on the inner peripheral side of the cylindrical portion 52.
　上述したように構成された遠心式クラッチ装置１００は、次のように動作する。 The centrifugal clutch device 100 configured as described above operates as follows.
　まず、エンジンからの動力によって、入力軸１０１が回転する。ドライブプレート１は、入力軸１０１と一体的に回転する。ドライブプレート１の回転に伴い、クラッチシュー３に遠心力が作用し、クラッチシュー３はスプリング６の付勢力に抗して径方向の外側へと移動する。クラッチシュー３とクラッチハウジング５とが摩擦係合し、クラッチハウジング５が回転する。この結果、エンジンからの駆動力が駆動輪へと伝達される。 First, the input shaft 101 is rotated by the power from the engine. The drive plate 1 rotates integrally with the input shaft 101. As the drive plate 1 rotates, a centrifugal force acts on the clutch shoe 3, and the clutch shoe 3 moves outward in the radial direction against the urging force of the spring 6. The clutch shoe 3 and the clutch housing 5 are frictionally engaged, and the clutch housing 5 rotates. As a result, the driving force from the engine is transmitted to the driving wheels.
　本実施形態に係る遠心式クラッチ装置１００は、押さえプレート４によってクラッチシュー３をドライブプレート１側に押さえているため、ジャダー現象の発生を抑制することができる。また、本実施形態に係る遠心式クラッチ装置１００は、ジャダー現象の発生を押さえプレート４のみで抑制しており、従来の遠心式クラッチ装置よりも少ない部品点数でジャダー現象を抑制することができる。 Since the centrifugal clutch device 100 according to the present embodiment presses the clutch shoe 3 toward the drive plate 1 by the pressing plate 4, it is possible to suppress the occurrence of judder phenomenon. Further, the centrifugal clutch device 100 according to the present embodiment suppresses the occurrence of the judder phenomenon only by the pressing plate 4 and can suppress the judder phenomenon with a smaller number of parts than the conventional centrifugal clutch device.
　［変形例］
　以上、本発明の実施形態について説明したが、本発明はこれらに限定されるものではなく、本発明の趣旨を逸脱しない限りにおいて種々の変更が可能である。 [Modification]
As mentioned above, although embodiment of this invention was described, this invention is not limited to these, A various change is possible unless it deviates from the meaning of this invention.
　変形例１
　上記実施形態に係る押さえプレート４では、押さえ部４２は平面部４１の外周縁に取り付けられているが、押さえプレート４の構成は特にこれに限定されない。例えば、図４及び図５に示すように、押さえ部４２は、平面部４１の内周縁に取り付けられていてもよい。この場合、平面部４１の内周縁を直線状とすることが好ましい。すなわち、押さえプレート４は、平面視が円形状であって、三角形状の開口部４０を中央部に有している。 Modification 1
In the pressing plate 4 according to the above-described embodiment, the pressing portion 42 is attached to the outer peripheral edge of the flat portion 41, but the configuration of the pressing plate 4 is not particularly limited thereto. For example, as shown in FIGS. 4 and 5, the pressing portion 42 may be attached to the inner periphery of the flat portion 41. In this case, it is preferable that the inner peripheral edge of the plane portion 41 is linear. That is, the pressing plate 4 has a circular shape in plan view and has a triangular opening 40 at the center.
　変形例２
　上記実施形態では、押さえプレート４の平面部４１は、環状の１つの部材によって構成されているが、平面部４１の構成は特にこれに限定されない。例えば、複数の部材によって環状の平面部４１が形成されていてもよい。 Modification 2
In the said embodiment, although the plane part 41 of the pressing plate 4 is comprised by one cyclic | annular member, the structure of the plane part 41 is not specifically limited to this. For example, the annular flat surface portion 41 may be formed by a plurality of members.
　変形例３
　図６に示すように、押さえ部４２の先端部は、湾曲面４２ａを有していてもよい。この湾曲面４２ａがクラッチシュー３と当接している。 Modification 3
As shown in FIG. 6, the distal end portion of the pressing portion 42 may have a curved surface 42a. The curved surface 42 a is in contact with the clutch shoe 3.
　変形例４
　上記実施形態では、押さえプレート４は、各軸部材に取り付けられているが、特にこれに限定されない。例えば、押さえプレート４は、各軸部材２とは別にドライブプレート１から延びている軸部材に取り付けられていてもよい。 Modification 4
In the said embodiment, although the pressing plate 4 is attached to each shaft member, it is not specifically limited to this. For example, the pressing plate 4 may be attached to a shaft member extending from the drive plate 1 separately from each shaft member 2.
　１　　ドライブプレート
　２　　軸部材
　３　　クラッチシュー
　４　　押さえプレート
　４１　　平面部
　４２　　押さえ部 DESCRIPTION OF SYMBOLS 1 Drive plate 2 Shaft member 3 Clutch shoe 4 Holding plate 41 Plane part 42 Holding part

Claims (7)

  1. 　回転軸を中心に回転可能に配置されたドライブプレートと、
    　前記ドライブプレートから軸方向に延びる複数の軸部材と、
    　前記各軸部材に対して揺動可能に取り付けられた複数のクラッチシューと、
    　前記各軸部材間を延びる環状の平面部、及び前記平面部の外周縁又は内周縁に取り付けられ前記クラッチシューを前記ドライブプレート側に押さえる押さえ部、を有する押さえプレートと、
    を備える、遠心式クラッチ装置。     A drive plate arranged to be rotatable around a rotation axis;
    A plurality of shaft members extending axially from the drive plate;
    A plurality of clutch shoes attached to each of the shaft members in a swingable manner;
    A holding plate having an annular flat surface portion extending between the shaft members, and a pressing portion that is attached to an outer peripheral edge or an inner peripheral edge of the flat surface portion and presses the clutch shoe toward the drive plate;
    A centrifugal clutch device comprising:
  2. 　前記押さえ部は、前記平面部から径方向外側に延びた部分を前記クラッチシュー側へと折り曲げることによって形成される、
    請求項１に記載の遠心式クラッチ装置。     The pressing portion is formed by bending a portion extending radially outward from the flat portion to the clutch shoe side.
    The centrifugal clutch device according to claim 1.
  3. 　前記平面部の外周縁は、直線状である、
    請求項２に記載の遠心式クラッチ装置。     The outer peripheral edge of the flat portion is linear.
    The centrifugal clutch device according to claim 2.
  4. 　前記押さえ部は、前記平面部から径方向内側に延びた部分を前記クラッチシュー側へと折り曲げることによって形成される、
    請求項１に記載の遠心式クラッチ装置。     The pressing portion is formed by bending a portion extending radially inward from the flat portion toward the clutch shoe side.
    The centrifugal clutch device according to claim 1.
  5. 　前記平面部の内周縁は、直線状である、
    請求項４に記載の遠心式クラッチ装置。     The inner peripheral edge of the flat portion is linear.
    The centrifugal clutch device according to claim 4.
  6. 　前記平面部は、前記各軸部材の間において、前記クラッチシューから離れる方向に撓む、
    請求項１から５のいずれかに記載の遠心式クラッチ装置。     The flat portion bends in a direction away from the clutch shoe between the shaft members,
    The centrifugal clutch device according to any one of claims 1 to 5.
  7. 　前記押さえ部の先端部は、前記クラッチシューに当接する湾曲面を有する、
    請求項１から６のいずれかに記載の遠心式クラッチ装置。
          The distal end portion of the pressing portion has a curved surface that comes into contact with the clutch shoe.
    The centrifugal clutch device according to any one of claims 1 to 6.
PCT/JP2015/072500 2014-09-17 2015-08-07 Centrifugal-type clutch device WO2016042941A1 (en)

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JPH04106532U (en) * 1991-02-27 1992-09-14 川崎重工業株式会社 centrifugal clutch
JP2002039227A (en) * 2000-07-25 2002-02-06 Suzuki Motor Corp Centrifugal clutch device for vehicle
JP2012229730A (en) * 2011-04-26 2012-11-22 F C C:Kk Centrifugal clutch apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112005027A (en) * 2018-05-11 2020-11-27 株式会社F.C.C. Centrifugal clutch
CN112005027B (en) * 2018-05-11 2022-07-05 株式会社F.C.C. Centrifugal clutch

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JP2016061342A (en) 2016-04-25

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