JP3107895U - Improved structure of clutch device for bicycle wheel hub - Google Patents
Improved structure of clutch device for bicycle wheel hub Download PDFInfo
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- JP3107895U JP3107895U JP2004005647U JP2004005647U JP3107895U JP 3107895 U JP3107895 U JP 3107895U JP 2004005647 U JP2004005647 U JP 2004005647U JP 2004005647 U JP2004005647 U JP 2004005647U JP 3107895 U JP3107895 U JP 3107895U
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Abstract
【課題】自転車の車輪ハブのクラッチ装置の改良構造を提供する。
【解決手段】車輪ハブ内部に配設される弾性部材、クラッチを構成する定位部材と可動調整部材および複数の係合ボール、スプロケット固定ベース、複数の内部装填ボールと、スプロケット固定ベース内に配設される固定スクリュー及び複数の外部装填ボールを備えた自転車車輪ハブのクラッチ装置であって、自転車のペダルが踏み込まれた時、調整槽間の係合ボールが、反対方向の頂出部方向に転がることで、可動調整部材は、弾性部材を圧縮して前進し、３０と２０の傾斜面を摺接して可動状態となり、スプロケット固定ベースの回転速度が、定位部材より遅くなった時には、頂出部の係合ボールは、対応する３０と４０の二つの係合部３４，４２内に転がり込み、可動調整部材は弾性部材により押圧されて後退し、３０と２０の傾斜面の接合が離脱されてスプロケット固定ベースと可動調整部材は互いに連動しない構成とした。
【選択図】図３An improved structure of a clutch device for a bicycle wheel hub is provided.
An elastic member disposed in a wheel hub, a positioning member and a movable adjustment member constituting a clutch, a plurality of engagement balls, a sprocket fixing base, a plurality of internally loaded balls, and a sprocket fixing base. A bicycle wheel hub clutch device having a fixed screw and a plurality of external loading balls, wherein when the pedal of the bicycle is depressed, the engagement ball between the adjustment tanks rolls in the opposite direction of the apex portion Thus, the movable adjustment member moves forward by compressing the elastic member, and is brought into a movable state by slidingly contacting the inclined surfaces of 30 and 20, and when the rotation speed of the sprocket fixing base becomes slower than the positioning member, the protruding portion The engagement balls roll into the corresponding two engagement portions 34 and 42 of 30 and 40, and the movable adjustment member is pushed back by the elastic member, and the inclined surfaces 30 and 20 are inclined. Junction sprocket fixed base and a movable adjustment member is detached was configured not interlocked with each other.
[Selection] Figure 3
Description
本考案は、自転車の車輪ハブのクラッチ装置の改良構造に関するものであって、自転車の車輪ハブに装着して、使用者がペダルを踏まないで、或いは、下り坂を走行する時、自転する車輪の回転がスプロケットに干渉することなく、間接的に使用者の踏力に影響を与えないようにした自転車の車輪ハブのクラッチ装置の改良構造に関するものである。 The present invention relates to an improved structure of a clutch device for a bicycle wheel hub, which is attached to a bicycle wheel hub and rotates when a user does not step on a pedal or travels downhill. The present invention relates to an improved structure of a clutch device for a bicycle wheel hub that does not interfere with the user's pedaling force without interfering with the sprocket.
現在使用に供されている自転車の車輪ハブのクラッチ装置は、図１，図２で示されるようになっている。即ち、車輪ハブ６０の中心には、雄ねじ部を有する中心軸６０１が挿設されると共に、一端内側には収容凹部６０２が形成されている。この収容凹部６０２内に位置する前記中心軸６０１には、順に、ベアリング６１、弾性部材６２及び可動クラッチ片６３が設置されている。そして、前記可動クラッチ片６３の側面には、ラチェット６３１が形成され、このラチェット６３１に対応して支持部材６５に嵌合した固定クラッチ片６４が配設されている。さらに前記中心軸６０１の外方には、外方から内方に向けて、順に、スプロケット結合ベース６７、ベアリング６６が装着され、前記スプロケット結合ベース６７は、前記中心軸６０１にブッシュ６０１ｂを介して螺合したナット６０１ａにより動かないように固定される。さらに中心軸６０１の外側には、スプロケット（図示しない）を装着し、固定クラッチ片６４は、スプロケット結合ベース６７と固定されて同時に連動され、可動クラッチ片６３は、支持部材６５上で回動する一方向クラッチ方式のクラッチ機構が採用されている。 A bicycle wheel hub clutch device currently in use is as shown in FIGS. That is, a center shaft 601 having a male screw portion is inserted in the center of the wheel hub 60, and an accommodation recess 602 is formed inside one end. A bearing 61, an elastic member 62, and a movable clutch piece 63 are sequentially installed on the central shaft 601 located in the housing recess 602. A ratchet 631 is formed on the side surface of the movable clutch piece 63, and a fixed clutch piece 64 fitted to the support member 65 is disposed corresponding to the ratchet 631. Further, a sprocket coupling base 67 and a bearing 66 are sequentially attached to the outside of the central shaft 601 from the outside to the inside, and the sprocket coupling base 67 is attached to the central shaft 601 via a bush 601b. It is fixed so as not to move by the screwed nut 601a. Further, a sprocket (not shown) is mounted outside the central shaft 601, the fixed clutch piece 64 is fixed to the sprocket coupling base 67 and simultaneously interlocked, and the movable clutch piece 63 rotates on the support member 65. A one-way clutch type clutch mechanism is employed.
使用時にあっては、使用者は、自転車のペダルを踏むことによりチェーンを介してスプロケットを回転駆動し、間接的にスプロケット結合ベース６７を駆動回転させ、前記弾性部材６２によって互いに接合状態に偏倚された可動クラッチ片６３と固定クラッチ片６４のラチェット６３１が、互いに、噛合して連動するようになっている。 In use, the user rotates the sprocket via the chain by stepping on the pedal of the bicycle, indirectly drives and rotates the sprocket coupling base 67, and is biased to the joined state by the elastic member 62. The ratchet 631 of the movable clutch piece 63 and the fixed clutch piece 64 is engaged with each other and interlocked.
前記のように使用時にあっては、前記可動クラッチ片６３は、弾性部材６２の弾性による付勢を受けた状態で固定クラッチ片６４と接合状態で回転力を伝えるが、前記スプロケット結合ベース６７と固定クラッチ片６４の回転速度が、停止、或いは車輪ハブ６０の回転速度が可動クラッチ片６３より遅い場合、可動クラッチ片６３は、弾性部材６２を押圧し、固定クラッチ片６４のラチェットを通過するたびに雑音を生じさせている。 In use as described above, the movable clutch piece 63 transmits a rotational force in a joined state with the fixed clutch piece 64 in a state in which the movable clutch piece 63 is biased by the elasticity of the elastic member 62. When the rotational speed of the fixed clutch piece 64 is stopped or the rotational speed of the wheel hub 60 is slower than the movable clutch piece 63, the movable clutch piece 63 presses the elastic member 62 and passes through the ratchet of the fixed clutch piece 64. Is causing noise.
このような構造設計から分かるように、従来の自転車の車輪ハブ構成においては、二つの相対するラチェット６３１により、車輪とスプロケット間の駆動は、ペダルを踏むことで結合駆動され、ペダルを踏まずに駆動力を伝達しない場合には、前記二つの相対するラチェット６３１が噛合しないワンウエイクラッチ方式がとられているが、車輪とスプロケットとの空転時には、ワンウエイクラッチ面の摺動面で雑音を生じる問題点を有し、且つラチェット６３１の加工にあっては面倒であると共に、相対するラチェットは、それぞれ車輪ハブ内で精密な配置がしにくいという問題点がある。 As can be seen from such a structural design, in the conventional wheel hub configuration of the bicycle, the driving between the wheel and the sprocket is coupled and driven by stepping on the pedal by the two opposing ratchets 631, and the pedal is not stepped on. When the driving force is not transmitted, a one-way clutch system is adopted in which the two opposing ratchets 631 do not mesh with each other. However, when the wheel and the sprocket are idling, noise is generated on the sliding surface of the one-way clutch surface. In addition, there is a problem that the processing of the ratchet 631 is troublesome, and the opposing ratchet is difficult to precisely arrange in the wheel hub.
本考案は、従来公知の自転車の車輪ハブのクラッチ装置の問題点を改善する自転車車輪ハブのクラッチ装置の改良構造を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide an improved structure of a bicycle wheel hub clutch device that improves the problems of a known bicycle wheel hub clutch device.
請求項１による本考案の自転車の車輪ハブのクラッチ装置の改良構造は、車輪ハブ内部に配設される弾性部材、クラッチを構成する定位部材と可動調整部材および複数の係合ボール、スプロケット固定ベース、複数の内部装填ボールと、前記スプロケット固定ベース内に配設される固定スクリュー及び複数の外部装填ボールを備えた自転車車輪ハブのクラッチ装置の改良構造であって、車輪ハブ１０の中心には、雄ねじ部を有する中心軸１１が挿設されると共に、一端内側には収容凹部１２を有し、この収容凹部１２内面には定位部材２０が装着されており、前記定位部材２０は中心孔の内側端に僅かに突出する傾斜面を有する係合孔２２を備えると共に、外側端には、内滑槽２３を有しており、前記定位部材２０には可動調整部材３０が嵌合設置され、可動調整部材３０の内側面には、弾性部材１４が配設されており、前記可動調整部材３０内側となる外周縁には、前記定位部材２０の傾斜面を有する係合孔２２と接離する傾斜を有する係合面３２を備えると共に、外側面の外縁には等間隔で円弧凹状に形成された調整槽３３を有し、該調整槽３３の一端には、前記係合ボールの半径長さ部分が収容される半円弧状の係合部３４を、また他端には半円弧部径が小さい形状の頂出部３５を形成してなり、前記スプロケット固定ベース４０の中心は貫通穴が形成されており、その内側の前記可動調整部材３０の調整槽３３と相対するところに、小さな調整槽４１を有し、前記小さな調整槽４１は前記調整槽３３と相対配設され、前記調整槽３３と同様構成の係合部４２と頂出部４３を有し、前記調整層３３と前記調整層４１との間には係合ボールが配設されており、さらに、前記スプロケット固定ベース４０は外側の外周面に、内滑槽４４が形成され、また外側の外周面には、雄ねじ部を有するスプロケット結合部４５が形成され、内側の外周面に形成した内滑層４４と前記定位部材２０の内滑層２３との間に内部装填ボール４７を介在させ、かつ外側の内周縁に形成した外滑槽４６と中心に螺孔５１を有する固定スクリュー５０の内側の外周端部に形成した外滑槽５２との間に複数の外部装填ボール５３を配設してなり、前記構成によって、自転車のペダルが踏み込まれた時、スプロケット固定ベース４０を連動して回転させ、前記両調整槽３３，４１間の係合ボールが、反対方向の頂出部方向に転がることで、前記可動調整部材３０は、前記弾性部材１４を圧縮して前進して前記定位部材２０と接合して駆動力を伝え、前記スプロケット固定ベース４０の回転速度が、前記定位部材２０より遅くなった時には、前記頂出部３５，４３の係合ボール３６は、対応する前記二つの係合部３４，４２内に転がり収容され、前記可動調整部材３０に対する押圧力を消勢することで、前記可動調整部材３０は弾性部材１４により押圧されて後退し、前記可動調整部材３０と前記定位部材２０との接合が解除されて、スプロケット固定ベース４０と前記可動調整部材３０は互いに連動しないようになっていることを特徴とする。 The improved structure of the bicycle wheel hub clutch device according to the first aspect of the present invention includes an elastic member disposed in the wheel hub, a positioning member and a movable adjusting member constituting the clutch, a plurality of engagement balls, and a sprocket fixing base. An improved structure of a clutch device for a bicycle wheel hub having a plurality of internal loading balls, a fixing screw disposed in the sprocket fixing base and a plurality of external loading balls, A central shaft 11 having a male screw portion is inserted, and a receiving recess 12 is provided inside one end, and a positioning member 20 is mounted on the inner surface of the receiving recess 12, and the positioning member 20 is located inside the center hole. An engaging hole 22 having an inclined surface slightly projecting at the end is provided, and an inner sliding tub 23 is provided at the outer end, and the movable adjusting member 30 is fitted to the positioning member 20. The elastic member 14 is disposed on the inner side surface of the movable adjustment member 30. The outer peripheral edge on the inner side of the movable adjustment member 30 has an engagement hole 22 having an inclined surface of the localization member 20. The adjusting tank 33 is provided with an engaging surface 32 having an inclined contact and separation, and an outer edge of the outer surface has an adjustment tank 33 formed in a circular arc concave shape at equal intervals. A semicircular arc-shaped engaging portion 34 that accommodates a radial length portion is formed, and an apex portion 35 having a small semicircular arc portion diameter is formed at the other end, and the center of the sprocket fixing base 40 passes therethrough. A hole is formed, and there is a small adjustment tank 41 at a position facing the adjustment tank 33 of the movable adjustment member 30 inside thereof, and the small adjustment tank 41 is disposed relative to the adjustment tank 33, and The engaging portion 42 and the apex portion 43 having the same configuration as the adjustment tank 33 are provided. An engagement ball is disposed between the adjustment layer 33 and the adjustment layer 41. Furthermore, the sprocket fixing base 40 has an inner slide tank 44 formed on the outer peripheral surface thereof, and an outer side. A sprocket coupling portion 45 having a male screw portion is formed on the outer peripheral surface of the inner surface, and an internal loading ball 47 is interposed between the inner sliding layer 44 formed on the inner outer peripheral surface and the inner sliding layer 23 of the positioning member 20. In addition, a plurality of external loading balls 53 are disposed between the outer sliding tub 46 formed on the outer peripheral edge of the outer side and the outer sliding tub 52 formed on the inner peripheral end of the fixed screw 50 having the screw hole 51 at the center. With this configuration, when the pedal of the bicycle is depressed, the sprocket fixing base 40 is rotated in conjunction with each other so that the engaging balls between the adjusting tanks 33 and 41 are directed in the opposite direction of the apex portion. By rolling, the movable adjustment The adjusting member 30 compresses the elastic member 14 and advances to join the positioning member 20 to transmit the driving force. When the rotational speed of the sprocket fixing base 40 becomes slower than the positioning member 20, The engaging balls 36 of the protruding portions 35, 43 are rolled and accommodated in the corresponding two engaging portions 34, 42, and the movable adjusting member 30 is deenergized to depress the pressing force against the movable adjusting member 30. Is pressed by the elastic member 14 to move backward, the joint between the movable adjustment member 30 and the positioning member 20 is released, and the sprocket fixing base 40 and the movable adjustment member 30 are not interlocked with each other. Features.
請求項２の考案は、請求項１に記載の自転車の車輪ハブのクラッチ装置の改良構造において、前記車輪ハブの収容凹部内には螺合段部を有し、前記螺合段部には前記定位部材の内側の外周縁に形成した螺合部を螺合結合するようにしたことを特徴とする。 According to a second aspect of the present invention, in the improved structure of the bicycle wheel hub clutch device according to the first aspect, the housing recess of the wheel hub has a screwing step, and the screwing step includes the screw step. The screwing portion formed on the outer peripheral edge inside the stereotaxic member is screwed and joined.
請求項３の考案は、請求項１に記載の自転車の車輪ハブのクラッチ装置の改良構造において、前記可動調整部材の傾斜面を有する係合面に、凹凸等の係合紋様を有することを特徴とする。 The invention of claim 3 is the improved structure of the bicycle wheel hub clutch device according to claim 1, wherein the engagement surface having the inclined surface of the movable adjustment member has an engagement pattern such as an unevenness. And
請求項４の考案は、請求項１に記載の自転車の車輪ハブのクラッチ装置の改良構造において、前記内部装填ボールと前記外部装填ボールは、ベアリングで代替可能であることを特徴とする。 According to a fourth aspect of the present invention, in the improved structure of the clutch device for a bicycle wheel hub according to the first aspect, the internal loading ball and the external loading ball can be replaced by a bearing.
請求項５の考案は、請求項１に記載の自転車の車輪ハブのクラッチ装置の改良構造において、前記可動調整部材の内側面に、弾性部材装着槽を凹設し、前記弾性部材を位置決めさせるようにしたことを特徴とする。 According to a fifth aspect of the present invention, in the improved structure of the clutch device for a bicycle wheel hub according to the first aspect, an elastic member mounting tub is provided in the inner side surface of the movable adjustment member to position the elastic member. It is characterized by that.
請求項６の考案は、請求項１に記載の自転車の車輪ハブのクラッチ装置の改良構造において、前記可動調整部材とスプロケット固定ベース上の調整槽は、二個以上が相対して設置されることを特徴とする。 The invention of claim 6 is the improved structure of the bicycle wheel hub clutch device according to claim 1, wherein two or more of the movable adjustment member and the adjustment tank on the sprocket fixing base are installed to face each other. It is characterized by.
公知技術と比較すると、本考案は、以下のような効果がある。
１）本考案の自転車の車輪ハブのクラッチ装置は、係合ボールが調整槽内で移動し、可動調整部材が、完全に、定位部材を脱離し、車輪を踏動せずに、慣性回転する時、両者間では発生するラチェット音を防止できる。
Compared with known techniques, the present invention has the following effects.
1) In the bicycle wheel hub clutch device of the present invention, the engaging ball moves in the adjusting tank, and the movable adjusting member completely detaches the positioning member and rotates inertially without stepping on the wheel. In some cases, ratchet sound generated between the two can be prevented.
２）本考案の自転車の車輪ハブのクラッチ装置は、係合ボールと調整槽との構成においては精密さを必要とせず、部品数量も少ないので、構成が簡略化でき生産性を向上でき安価に提供できる。 2) The bicycle wheel hub clutch device of the present invention does not require precision in the configuration of the engagement ball and the adjustment tank, and since the number of parts is small, the configuration can be simplified and the productivity can be improved and the cost can be reduced. Can be provided.
以下本考案の自転車の車輪ハブのクラッチ装置の改良構造を実施するための、実施例について、添付図面をもとに詳細に説明する。 Embodiments for improving the clutch device for a bicycle wheel hub according to the present invention will be described in detail with reference to the accompanying drawings.
図３の（Ａ），（Ｂ）は本考案の自転車の車輪ハブのクラッチ装置を分解して示す図で、（Ａ）は分解斜視図、（Ｂ）は固定ベースの斜視図である。図４は組み立てた状態の全体斜視図、図５，図６は動作を説明するための一部断面説明図である。 3A and 3B are exploded views of the bicycle wheel hub clutch device of the present invention, FIG. 3A is an exploded perspective view, and FIG. 3B is a perspective view of a fixed base. FIG. 4 is an overall perspective view of the assembled state, and FIGS. 5 and 6 are partial cross-sectional explanatory views for explaining the operation.
図３の（Ａ），（Ｂ）を参照すると、車輪ハブ１０、弾性部材１４、定位部材２０、可動調整部材３０、複数の係合ボール３６、筒状のスプロケット固定ベース４０、複数の内部装填ボール４７、固定スクリュー５０及び複数の外部装填ボール５３、ナット５０ａからなる。 3A and 3B, the wheel hub 10, the elastic member 14, the positioning member 20, the movable adjustment member 30, the plurality of engaging balls 36, the cylindrical sprocket fixing base 40, and the plurality of internal loads. It consists of a ball 47, a fixed screw 50, a plurality of external loading balls 53, and a nut 50a.
車輪ハブ１０の中心には、雄ねじ部を有する中心軸１１が挿設されると共に、一端内側には収容凹部１２を有している。この収容凹部１２内面は、雌ネジ部が設けられた小径の段差部１３が形成されており、前記段差部１３には定位部材２０の外周面に形成した螺合段部２１がリング状ブッシュ２０ａを介して螺合装着される。前記定位部材２０は中心孔の内側端に僅かに突出するテーパを有し、かつ凹凸等の係合模様を形成した係合孔２２を備えると共に、外側端には、内滑槽２３を有している。また、前記定位部材２０には可動調整部材３０が嵌合設置されている。可動調整部材３０の内側面には、弾性部材装着槽３１が凹設されている。また、可動調整部材３０内側となる外周縁には、前記定位部材２０のテーパを有する係合孔２２と接離可能となる傾斜面を有し、かつ凹凸等の係合模様を形成した係合面３２を備えると共に、外側面の外縁には等間隔で形成した複数の調整槽３３を有する。この実施例では３つの調整層３３が形成されている。 A center shaft 11 having a male thread portion is inserted in the center of the wheel hub 10 and has an accommodating recess 12 on one inner side. A small-diameter step portion 13 provided with a female screw portion is formed on the inner surface of the housing recess portion 12, and a screwing step portion 21 formed on the outer peripheral surface of the localization member 20 is formed on the step portion 13. And screwed through. The positioning member 20 has a taper that slightly protrudes at the inner end of the center hole, and has an engagement hole 22 formed with an engagement pattern such as irregularities, and an inner slide 23 at the outer end. ing. A movable adjustment member 30 is fitted and installed on the localization member 20. An elastic member mounting tank 31 is recessed in the inner surface of the movable adjustment member 30. Further, the outer peripheral edge on the inner side of the movable adjustment member 30 has an inclined surface that can be brought into contact with and separated from the engagement hole 22 having a taper of the localization member 20, and an engagement pattern such as an unevenness is formed. While having the surface 32, it has the some adjustment tank 33 formed in the outer edge of the outer surface at equal intervals. In this embodiment, three adjustment layers 33 are formed.
各調整槽３３は、それぞれ楕円状の円弧凹状に形成されており、調整槽３３の一端は、半円弧状の係合部３４を有し、この係合部３４より延伸した他端は半円弧部径の小さい形状の頂出部３５となっており、この係合部３４と頂出部３５の形成方向は、自転車のペダルを踏むことで移動回転する方向と一致させて形成してあり、車輪ハブ１０内に配設され、自転車のペダルが前に踏まれて回転する後方が頂出部３５で、前方が係合部３４となるようにしてある。
前記スプロケット固定ベース４０は前記収容凹部１２の内側部がリング状ブッシュ４０ａを介して挿入される。前記スプロケット固定ベース４０の中心は貫通穴が形成されており、その内側の前記可動調整部材３０の調整槽３３と相対するところに、小さな調整槽４１を有する。前記小さな調整槽４１は前記調整槽３３と相対配設され、前記調整槽３３と同様構成の係合部４２と頂出部４３を有している。
Each adjustment tank 33 is formed in an elliptical arc concave shape, and one end of the adjustment tank 33 has a semicircular arc-shaped engagement portion 34, and the other end extended from the engagement portion 34 is a semicircular arc. The apex part 35 has a shape with a small diameter, and the formation direction of the engagement part 34 and the apex part 35 is formed so as to coincide with the direction of rotation by stepping on the pedal of the bicycle, Arranged in the wheel hub 10, the rear part where the bicycle pedal is stepped forward and rotated is the apex part 35, and the front part is the engaging part 34.
The sprocket fixing base 40 is inserted through the ring-shaped bush 40a at the inner side of the receiving recess 12. A through hole is formed at the center of the sprocket fixing base 40, and a small adjustment tank 41 is provided at a position opposite to the adjustment tank 33 of the movable adjustment member 30 inside. The small adjustment tank 41 is disposed relative to the adjustment tank 33 and has an engaging portion 42 and a top portion 43 having the same configuration as the adjustment tank 33.
前記スプロケット固定ベース４０はさらに外周辺の内側段に、内滑槽４４が形成され、また外側段には、雄ねじ部を有するスプロケット結合部４５が形成されており、図示しない一個以上のスプロケットと螺合連結する。また外側の内周縁には、外滑槽４６が設けられ、固定スクリュー５０が挿入される。さらに固定スクリュー５０の中心には螺孔５１が設けられており、内側の外周縁には、外滑槽５２が形成されて前記外滑槽４６との間に配設される複数の外部装填ボール５３を保持するようになっている。５０ａは前記中心軸１１に螺合した固定スクリュー５０の移動を規制するナットである。 The sprocket fixing base 40 is further provided with an inner slide tank 44 on the inner peripheral stage on the outer periphery, and a sprocket coupling part 45 having a male threaded part on the outer stage. Connect together. In addition, an outer slide tank 46 is provided on the outer inner peripheral edge, and a fixing screw 50 is inserted. Further, a screw hole 51 is provided at the center of the fixed screw 50, and an outer slide tank 52 is formed on the inner peripheral edge, and a plurality of external loading balls disposed between the outer slide tank 46 and the outer slide tank 46. 53 is held. Reference numeral 50a denotes a nut for restricting the movement of the fixed screw 50 screwed to the central shaft 11.
以上のように構成された本考案の自転車車輪ハブのクラッチ装置は、組み合わせ時、図４で示されるように、弾性部材１４は、車輪ハブ１０の中心軸１１を貫通して、収容凹部１２中に設置され、定位部材２０は、螺合段部２１により、収容凹部１２の螺合段部１３と螺合固定し、可動調整部材３０は、定位部材２０に嵌入され、弾性部材１４外端は、調整槽３１に係止される。そして、スプロケット固定ベース４０は、可動調整部材３０外側に設置され、同時に、係合ボール３６は、それぞれ、二つの調整槽３３、４１間に位置し、複数の内部装填ボール４７は、二つの内滑槽２３、４４内に配設され、スプロケット固定ベース４０外側は、スプロケットと螺合連結されるようになっていると共に、固定スクリュー５０は中心軸１１に螺合されるナット５０ａにより固定されると同時に、複数の外部装填ボール５３を二つの外滑槽４６、５２間に設置する。 When the bicycle wheel hub clutch device of the present invention configured as described above is combined, as shown in FIG. 4, the elastic member 14 passes through the central shaft 11 of the wheel hub 10 and enters the housing recess 12. The positioning member 20 is screwed and fixed to the screwing step portion 13 of the housing recess 12 by the screwing step portion 21, the movable adjustment member 30 is fitted into the positioning member 20, and the outer end of the elastic member 14 is , And is locked to the adjustment tank 31. The sprocket fixing base 40 is installed outside the movable adjustment member 30. At the same time, the engagement balls 36 are located between the two adjustment tanks 33 and 41, respectively. The sprocket fixing base 40 is disposed inside the slide tanks 23 and 44, and the outside of the sprocket fixing base 40 is screwed to the sprocket. The fixing screw 50 is fixed by a nut 50a screwed to the central shaft 11. At the same time, a plurality of external loading balls 53 are installed between the two outer slide tanks 46 and 52.
使用時に、図５，図６で示されるように、自転車走行によるペダルの駆動時には、図示しないスプロケットを介してスプロケット固定ベース４０を連動して回転させると、前記調整槽３３、４１間に配設される係合ボール３６が、反対方向に、即ち前記調整槽３３、４１の小さい頂出部３５、４３方向に転がり、可動調整部材３０は、これにより、弾性部材１４を押圧する方向に移動する。同時に、可動調整部材３０の係合段３２と定位部材２０の係合孔２２が互いに係合し、定位部材２０を連動し、車輪ハブ１０と車輪が継続して回転する。 In use, as shown in FIGS. 5 and 6, when the pedal is driven by cycling, if the sprocket fixing base 40 is rotated in conjunction with a sprocket (not shown), it is disposed between the adjusting tanks 33 and 41. The engaged ball 36 rolls in the opposite direction, that is, in the direction of the small protruding portions 35 and 43 of the adjustment tanks 33 and 41, and the movable adjustment member 30 thereby moves in the direction of pressing the elastic member 14. . At the same time, the engagement step 32 of the movable adjustment member 30 and the engagement hole 22 of the positioning member 20 are engaged with each other, the positioning member 20 is interlocked, and the wheel hub 10 and the wheel are continuously rotated.
一方、ペダルを踏動しないときには、車輪と連動する定位部材２０と車輪ハブ１０は、同様に慣性持続回転し、また、スプロケット固定ベース４０の回転速度が定位部材２０より遅くなる時、頂出部３５，４３の係合ボール３６は、凹部の深い二つの係合部３４，４２内に転がり込む。したがって、可動調整部材３０は、弾性部材１４の弾性により戻され、係合面３２と係合孔２２との接合面を互いに離間させ、スプロケット固定ベース４０、スプロケット、アクセルペグ（駆動伝達部）を連動しない。 On the other hand, when the pedal is not depressed, the positioning member 20 and the wheel hub 10 that are interlocked with the wheel rotate in a similar inertial manner. The engaging balls 36 of 35 and 43 roll into the two engaging portions 34 and 42 having deep recesses. Accordingly, the movable adjustment member 30 is returned by the elasticity of the elastic member 14, and the joint surfaces of the engagement surface 32 and the engagement hole 22 are separated from each other, and the sprocket fixing base 40, the sprocket, and the accelerator peg (drive transmission unit) are moved. Not linked.
以上のように構成された本考案の実施例によれば、以下のような効果が得られる。
１） 係合ボール３６が調整槽３３，４１内で移動し、可動調整部材３０が定位部材２０を完全に脱離することにより、アクセルペグ（駆動伝達部）は、車輪を踏動しないで慣性回転する時に、両者の接触音を防止できる。
２） 係合ボール３６と調整槽３３，４１の構造設計により、精密な配置が不要で、部品数量も少なく、故に、製造上、簡潔で容易である。
According to the embodiment of the present invention configured as described above, the following effects can be obtained.
1) When the engagement ball 36 moves in the adjustment tanks 33 and 41 and the movable adjustment member 30 completely removes the localization member 20, the accelerator peg (drive transmission unit) is inertial without stepping on the wheels. When rotating, the contact noise between the two can be prevented.
2) Due to the structural design of the engagement ball 36 and the adjustment tanks 33 and 41, precise arrangement is not necessary and the number of parts is small, and therefore, it is simple and easy to manufacture.
本考案では好ましい実施例を前述の通り開示したが、これらは決して本考案に限定するものではなく、当該技術を熟知する者なら誰でも、本考案の精神と領域を脱しない範囲内で各種の変形を加えることができる。従って本考案の保護範囲は、実用新案登録請求の範囲で指定した内容を基準とする。 In the present invention, preferred embodiments have been disclosed as described above. However, these are not intended to limit the present invention, and any person who is familiar with the technology can use various methods within the spirit and scope of the present invention. Deformation can be added. Therefore, the protection scope of the present invention is based on the contents specified in the utility model registration request.
１０，６０…車輪ハブ
１１，６０１…中心軸
１２，６０２…収容凹部
１３…段差部
２０…定位部材
２１…螺合段部
２２…係合孔
２３、４４…内滑槽
３０…可動調整部材
３１…弾性部材装着槽
３２…係合面
３３，４１…調整槽
３４，４２…係合部
３５、４３…頂出部
３６…係合ボール
４０…スプロケット固定ベース
４５…スプロケット結合段
４６，５２…外滑槽
４７…内部装填ボール
５０…固定スクリュー
５１…螺孔
５３…外部装填ボール
６１，６６…ベアリング
１４，６２…弾性部材
６３…可動クラッチ片
６３１…ラチェット
６４…固定クラッチ片
６５…支持部材
６７…スプロケット固定ベース
DESCRIPTION OF SYMBOLS 10,60 ... Wheel hub 11,601 ... Center axis 12,602 ... Accommodating recessed part 13 ... Step part 20 ... Positioning member 21 ... Screwing step part 22 ... Engagement hole 23, 44 ... Inner slide tank 30 ... Movable adjustment member 31 ... elastic member mounting tank 32 ... engagement surface 33, 41 ... adjustment tank 34, 42 ... engagement part 35, 43 ... top part 36 ... engagement ball 40 ... sprocket fixing base 45 ... sprocket coupling stage 46, 52 ... outside Sliding tank 47 ... Internal loading ball 50 ... Fixed screw 51 ... Screw hole 53 ... External loading ball 61, 66 ... Bearing 14, 62 ... Elastic member 63 ... Movable clutch piece 631 ... Ratchet 64 ... Fixed clutch piece 65 ... Support member 67 ... Sprocket fixed base
Claims (6)
車輪ハブ１０の中心には、雄ねじ部を有する中心軸１１が挿設されると共に、一端内側には収容凹部１２を有し、この収容凹部１２内面には定位部材２０が装着されており、
前記定位部材２０は中心孔の内側端に僅かに突出する傾斜面を有する係合孔２２を備えると共に、外側端には、内滑槽２３を有しており、
さらに前記定位部材２０には可動調整部材３０が嵌合設置され、可動調整部材３０の内側面には、弾性部材１４が配設されており、
前記可動調整部材３０内側となる外周縁には、前記定位部材２０の傾斜面を有する係合孔２２と接離する傾斜を有する係合面３２を備えると共に、外側面の外縁には等間隔で円弧凹状に形成された調整槽３３を有し、該調整槽３３の一端には、前記係合ボールの半径長さ部分が収容される半円弧状の係合部３４を、また他端には半円弧部径が小さい形状の頂出部３５を形成してなり、
前記スプロケット固定ベース４０の中心は貫通穴が形成されており、その内側の前記可動調整部材３０の調整槽３３と相対するところに、小さな調整槽４１を有し、前記小さな調整槽４１は前記調整槽３３と相対配設され、前記調整槽３３と同様構成の係合部４２と頂出部４３を有し、前記調整層３３と前記調整層４１との間には係合ボールが配設されており、
さらに、前記スプロケット固定ベース４０は外側の外周面に、内滑槽４４が形成され、また外側の外周面には、雄ねじ部を有するスプロケット結合部４５が形成され、内側の外周面に形成した内滑層４４と前記定位部材２０の内滑層２３との間に内部装填ボール４７を介在させ、かつ外側の内周縁に形成した外滑槽４６と中心に螺孔５１を有する固定スクリュー５０の内側の外周端部に形成した外滑槽５２との間に複数の外部装填ボール５３を配設してなり、
前記構成によって、自転車のペダルが踏み込まれた時、スプロケット固定ベースを連動して回転させ、前記両調整槽間の係合ボールが、反対方向の頂出部方向に転がることで、前記可動調整部材は、前記弾性部材を圧縮して前進して前記定位部材と接合して駆動力を伝え、前記スプロケット固定ベースの回転速度が、前記定位部材より遅くなった時には、前記頂出部の係合ボールは、対応する前記二つの係合部３４，４２内に転がり収容され、前記可動調整部材に対する押圧力を消勢することで、前記可動調整部材は弾性部材により押圧されて後退し、前記可動調整部材と前記定位部材との接合が解除されて、スプロケット固定ベースと前記可動調整部材は互いに連動しないようになっていることを特徴とする自転車の車輪ハブのクラッチ改良構造。 An elastic member disposed in the wheel hub, a positioning member and a movable adjustment member constituting the clutch, a plurality of engagement balls, a sprocket fixing base, a plurality of internal loading balls, and a fixing disposed in the sprocket fixing base An improved structure of a clutch device for a bicycle wheel hub with a screw and a plurality of external loading balls,
A center shaft 11 having a male screw portion is inserted in the center of the wheel hub 10, and an accommodation recess 12 is provided inside one end, and a localization member 20 is mounted on the inner surface of the accommodation recess 12.
The stereotaxic member 20 includes an engagement hole 22 having an inclined surface that slightly projects at the inner end of the center hole, and an inner sliding tub 23 at the outer end.
Further, a movable adjustment member 30 is fitted and installed on the localization member 20, and an elastic member 14 is disposed on the inner surface of the movable adjustment member 30.
The outer peripheral edge on the inner side of the movable adjustment member 30 is provided with an engagement surface 32 having an inclination contacting and separating from the engagement hole 22 having the inclined surface of the localization member 20, and at the outer edge of the outer surface at equal intervals. The adjustment tank 33 is formed in a circular arc concave shape, and the adjustment tank 33 has a semi-arc-shaped engagement portion 34 in which one end of the radius of the engagement ball is accommodated at one end, and the other end. Forming a peak portion 35 having a small semicircular arc diameter,
The center of the sprocket fixing base 40 is formed with a through hole, and has a small adjustment tank 41 at a position facing the adjustment tank 33 of the movable adjustment member 30 inside thereof, and the small adjustment tank 41 is the adjustment tank. The engagement portion 42 and the top portion 43 are disposed relative to the tank 33 and have the same configuration as the adjustment tank 33, and an engagement ball is disposed between the adjustment layer 33 and the adjustment layer 41. And
Further, the sprocket fixing base 40 has an inner slide tank 44 formed on the outer peripheral surface on the outer side, and a sprocket coupling portion 45 having a male screw portion formed on the outer peripheral surface on the outer peripheral surface. An inner loading ball 47 is interposed between the sliding layer 44 and the inner sliding layer 23 of the positioning member 20, and an outer sliding tank 46 formed on the outer peripheral edge of the outer side and an inner side of the fixed screw 50 having a screw hole 51 in the center. A plurality of external loading balls 53 are disposed between the outer slide tank 52 formed at the outer peripheral end of
According to the above configuration, when the pedal of the bicycle is depressed, the sprocket fixing base is rotated in conjunction, and the engagement ball between the two adjustment tanks rolls in the opposite direction of the apex portion, whereby the movable adjustment member Compresses the elastic member, advances and joins the positioning member to transmit the driving force. When the rotation speed of the sprocket fixing base becomes slower than the positioning member, the engagement ball of the apex portion Is accommodated by rolling in the corresponding two engaging portions 34 and 42, and by deactivating the pressing force on the movable adjustment member, the movable adjustment member is pushed back by an elastic member, and the movable adjustment The clutch of the bicycle wheel hub is characterized in that the sprocket fixing base and the movable adjustment member are not interlocked with each other by releasing the connection between the member and the positioning member. Structure.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017110793A (en) * | 2015-12-18 | 2017-06-22 | 喬紳股▲ふん▼有限公司 | Hub ratchet structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2017110793A (en) * | 2015-12-18 | 2017-06-22 | 喬紳股▲ふん▼有限公司 | Hub ratchet structure |
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