JP3006817U - Bicycle wheel push - Google Patents
Bicycle wheel pushInfo
- Publication number
- JP3006817U JP3006817U JP1994009735U JP973594U JP3006817U JP 3006817 U JP3006817 U JP 3006817U JP 1994009735 U JP1994009735 U JP 1994009735U JP 973594 U JP973594 U JP 973594U JP 3006817 U JP3006817 U JP 3006817U
- Authority
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- Japan
- Prior art keywords
- spherical surface
- ball
- ball pushing
- concave
- concave spherical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Motorcycle And Bicycle Frame (AREA)
Abstract
(57)【要約】
【目的】ハブやハンガ部で、各部品に仕上げ誤差や焼き
入れの歪み・変形等が有っても、それらに伴う回転時の
中心線方向へのブレを自動的に吸収し、ベアリングボー
ルの詰まりやゴロつき等を無くして、回転を常に滑らか
にする。
【構成】ハブまたはハンガ部の玉押しを、その中心線Ｘ
方向に２分割して玉押し部材１と締め込み部材２とで構
成してなり、上記玉押し部材１は、中央に軸５の外径よ
りやや大きめの通孔７を形成し、玉押し面４と反対の後
面を凹球面８に形成するとともに、該凹球面８に放射状
の菊座部９を形成し、他方締め込み部材２は、中央に軸
５へ螺合可能な雌ネジ部６を形成し、かつ上記凹球面８
に対向する前面を、該凹球面８へ係合可能な凸球面１０
に形成するとともに、該凸球面１０に上記凹球面８の菊
座部９へ係合可能な菊座部１１を形成する。また両菊座
部９，１１の山と谷を、両者が線接触状になる形状にす
る。
(57) [Abstract] [Purpose] Even if there is a finishing error or distortion or deformation of quenching in each part at the hub or hanger part, the blurring in the center line direction at the time of rotation due to them is automatically Absorbs, eliminates clogging of bearing balls and sticking, and smooths the rotation. [Structure] Push the hub or hanger onto the center line X
The ball pushing member 1 and the tightening member 2 are divided into two parts in the direction, and the ball pushing member 1 has a through hole 7 slightly larger than the outer diameter of the shaft 5 in the center, and the ball pushing surface. 4 is formed with a concave spherical surface 8 and a radial chrysanthemum portion 9 is formed on the concave spherical surface 8. On the other hand, the tightening member 2 has a female screw portion 6 that can be screwed onto the shaft 5 at the center. And the concave spherical surface 8
The front surface facing the concave spherical surface 8 can be engaged with the concave spherical surface 8.
In addition to the above, the convex spherical surface 10 is formed with the chrysanthemum portion 11 which can be engaged with the chrysanthemum portion 9 of the concave spherical surface 8. Further, the peaks and valleys of both chrysanthemum seat portions 9 and 11 are formed into a line contact shape.
Description
【０００１】[0001]
本考案は自転車用玉押し、特にハブやハンガ部における玉押しの改良に係り、 回転時のベアリングボールのごろつき、詰まり等を無くして、滑らかな回転を可 能にすることを特徴とするものである。 The present invention relates to a bicycle ball pusher, and particularly to an improvement of a ball pusher on a hub or a hanger part, which is characterized by enabling smooth rotation of a bearing ball by eliminating the roughness and clogging of a bearing ball during rotation. is there.
【０００２】[0002]
自転車の前・後のハブやハンガ部は、走行中は常時かなりの速度で回転する部 分である。ハブの構造は、ハブ体とその中に通挿されたハブ軸とを、左・右のわ んと玉押しとの間に介在させたボールベアリングで、可回転に軸支してある。他 方ハンガ部の構造は、ハンガとその中に通挿されたクランク軸とを、左・右のわ んと玉押しとの間に介在させたボールベアリングで、可回転に軸支してある（例 えば、ハブについて日本工業規格集−自転車編（１９８２）財団法人自転車産業 振興協会発行の１５６頁，ハンガ部について実開昭５７−１７４１８７号公報参 照）。 The front and rear hubs and hangers of the bicycle are parts that rotate at a considerable speed during driving. The hub structure is rotatably supported by a ball bearing in which a hub body and a hub shaft inserted therein are interposed between the left and right hooks and the ball pusher. The structure of the other hanger part is a ball bearing in which a hanger and a crankshaft inserted in the hanger are interposed between the left and right wheels and the ball pusher, and are rotatably supported. (For example, for hubs, see Japanese Industrial Standards Collection-Bicycle Edition (1982) Page 156, Bicycle Industry Promotion Association, see Hanger section, Japanese Utility Model Publication No. 57-174187).
【０００３】[0003]
ところで、例えばハブ軸やクランク軸、またはそこに螺装される玉押しには、 切削加工の仕上げ誤差や焼き入れに伴い僅かながら歪み・変形が残っている。ま たわんをハブ体やハンガ本体へ打ち込み固定時にも、僅かながら歪み・変形が生 じている。 By the way, for example, a hub shaft, a crank shaft, or a ball push screwed onto the hub shaft has a slight distortion or deformation due to a finishing error in cutting or quenching. Slight distortion and deformation also occur when the mat is driven into the hub or hanger body and fixed.
【０００４】 上記のハブやハンガ部の各部品毎の誤差・変形・歪み等により、回転中の上記 ハブやハンガ部では、僅かながら中心線方向（軸線方向）へ言わば波打ち状にブ レが生じており、わんと玉押し間でベアリングボールに対する玉たり圧力も不均 一になっている。そのため、回転時にハブやハンガ部でボールの詰まりやゴロつ き等が生じ、滑らかな回転を妨げていることが多い。Due to the errors, deformations, and distortions of the respective parts of the hub and hanger, the hub and hanger that are rotating are slightly wavy in the center line direction (axial direction). The ball rolling pressure on the bearing balls is also uneven between the bowl and the ball pushing. Therefore, during rotation, the hub or hanger part often causes ball clogging or scoring, which hinders smooth rotation.
【０００５】 本考案は、上記の如き自転車のハブやハンガ部における問題点を解決しようと するものである。即ち本考案の目的は、ハブやハンガ部における各部品に切削加 工の仕上げ誤差や焼き入れに伴う歪み・変形等が生じていても、回転時にそれら を自動的に吸収して、ボールの詰まりやゴロつき等が生じないようにして、回転 を常に滑らかにする、自転車用玉押しを提供することにある。The present invention is intended to solve the above problems in the hub and hanger portion of the bicycle. That is, the object of the present invention is to automatically absorb the finishing error of cutting work and the distortion / deformation caused by quenching in each part in the hub and the hanger part, and the ball clogging. The purpose of the present invention is to provide a bicycle wheel push that keeps the rotation always smooth by preventing the occurrence of sticking and sticking.
【０００６】[0006]
Ｉ 本考案に係る自転車用玉押しの第１は、 玉押しＡをその中心線Ｘ方向に２分割して、わん３内のベアリングボール１２ に対面する玉押し面４をもつ玉押し部材１と、軸５へ螺合させる雌ネジ部６をも つ締め込み部材２とで構成し、 I The first aspect of the bicycle ball pushing device according to the present invention is to divide the ball pushing device A into two in the direction of the center line X thereof and to make a ball pushing member 1 having a ball pushing surface 4 facing the bearing ball 12 in the bowl 3. , The female screw portion 6 to be screwed onto the shaft 5 and the tightening member 2,
【０００７】 上記玉押し部材１は、中央に軸５の外径よりやや大きめの通孔７を形成すると ともに、玉押し面４と反対の後側面を凹球面８に形成して、該凹球面８に放射状 に多数本の凹凸部のある菊座部９を形成し、The ball pushing member 1 has a through hole 7 which is slightly larger than the outer diameter of the shaft 5 in the center, and a rear side surface opposite to the ball pushing surface 4 is formed into a concave spherical surface 8. Forming a chrysanthemum portion 9 having a large number of irregularities on 8 in a radial pattern,
【０００８】 他方、締め込み部材２は、上記玉押し部材１の凹球面８に対向する面を、該凹 球面８へ係合可能な凸球面１０に形成して、該凸球面１０に上記凹球面８の菊座 部９へ係合可能な菊座部１１を形成してなるものである。On the other hand, in the tightening member 2, the surface facing the concave spherical surface 8 of the ball pushing member 1 is formed into a convex spherical surface 10 engageable with the concave spherical surface 8, and the concave spherical surface 10 is concaved. The chrysanthemum seat portion 11 that can be engaged with the chrysanthemum seat portion 9 of the spherical surface 8 is formed.
【０００９】 ＩＩ 本考案に係る自転車用玉押しの第２は、 玉押しＡをその中心線Ｘ方向に２分割して、わん３内のベアリングボール１２ に対面する玉押し面４をもつ玉押し部材１と、軸５へ螺合させる雌ネジ部６をも つ締め込み部材２とで構成し、II The second aspect of the bicycle ball pushing device according to the present invention is to divide the ball pushing device A into two in the direction of the center line X thereof and to have a ball pushing surface 4 facing the bearing ball 12 in the bowl 3. The member 1 and the tightening member 2 having the female screw portion 6 to be screwed onto the shaft 5,
【００１０】 上記玉押し部材１は、中央に軸５の外径よりやや大きめの通孔７を形成すると ともに、玉押し面４と反対の後側面を凹球面８に形成して、該凹球面８に放射状 に多数本の凹凸部のある菊座部９を形成し、The ball pushing member 1 has a through hole 7 which is slightly larger than the outer diameter of the shaft 5 in the center, and a rear side surface opposite to the ball pushing surface 4 is formed into a concave spherical surface 8. Forming a chrysanthemum portion 9 having a large number of irregularities on 8 in a radial pattern,
【００１１】 他方、締め込み部材２は、上記玉押し部材１の凹球面８に対向する面を、該凹 球面８へ係合可能な凸球面１０に形成して、該凸球面１０に上記凹球面８の菊座 部９へ係合可能な菊座部１１を形成し、On the other hand, in the tightening member 2, the surface facing the concave spherical surface 8 of the ball pushing member 1 is formed into a convex spherical surface 10 that can be engaged with the concave spherical surface 8, and the concave spherical surface 10 has the concave surface. Forming a chrysanthemum portion 11 that can be engaged with the chrysanthemum portion 9 of the spherical surface 8,
【００１２】 かつ、上記玉押し部材１の菊座部９と締め込み部材２の菊座部１１の各凹凸部 の形状を、噛み合い状態時に山と谷が線接触状になる形状に形成してなるもので ある。Further, the shapes of the concave and convex portions of the chrysanthemum seat portion 9 of the ball pushing member 1 and the chrysanthemum seat portion 11 of the tightening member 2 are formed so that the peaks and valleys are in line contact with each other when meshed. It will be.
【００１３】 上記構成において、本考案に係る自転車用玉押しＡは、ハブ用として前ハブ用 と後ハブ用の２種類がある外、ハンガ部用もあるが、いずれもその主要部の構成 は同じである。なお、上記玉押し部材１の菊座部９と締め込み部材２の菊座部１ １との各接触部分間には、滑りを良くするためにグリスその他の潤滑剤により潤 滑膜を形成しておくことが望ましく、また上記各菊座部９，１１の半径方向の長 さは、内周部寄りで切り欠くことで半径の２分の１以下にしておくことが望まし いが、それに限定するものではない。In the above structure, the bicycle ball pusher A according to the present invention includes two types for the hub, one for the front hub and the other for the rear hub, and also for the hanger part. Is the same. A lubricating synovium is formed by grease or other lubricant between the contact portions of the chrysanthemum portion 9 of the ball pushing member 1 and the chrysanthemum portion 11 of the tightening member 2 in order to improve sliding. It is desirable that the length of each chrysanthemum seat portion 9 and 11 in the radial direction is not more than one half of the radius by notching near the inner circumference. It is not limited.
【００１４】 図において、１３はハブ体、１４はハンガ本体、１５はワッシャ、１６は中ナ ット、１７は締付けナットを示す。In the figure, 13 is a hub body, 14 is a hanger body, 15 is a washer, 16 is an inner nut, and 17 is a tightening nut.
【００１５】[0015]
ａ）本考案に係る自転車用玉押しＡを、ハブやハンガ部に組付けるには、次の ように行えばよい。 a) To assemble the bicycle ball pushing device A according to the present invention to the hub or the hanger portion, the following steps should be performed.
【００１６】 ハブまたはハンガ部のわん３内に多数個のベアリングボール５を係合させてお き、本考案に係る玉押しＡの内、まず玉押し部材１を中央の通孔７で軸５に套合 させ、その玉押し面４をボール５へ当接状態にする。この際、玉押し部材１の凹 球面８・菊座部９は外側を向いている。A large number of bearing balls 5 are engaged in the hub or hanger 3 of the hanger portion, and first of all, in the ball pushing A according to the present invention, the ball pushing member 1 is provided with a central through hole 7 to form a shaft 5. The ball pushing surface 4 is brought into contact with the ball 5. At this time, the concave spherical surface 8 and the chrysanthemum portion 9 of the ball pushing member 1 face outward.
【００１７】 次いでその外側から、締め込み部材２を中央の雌ネジ部６で軸５に螺合させ、 該締め込み部材２の凸球面１０を、上記玉押し部材１の凹球面８へ係合状態にす る。そして締め込み部材２の螺合の調節により、玉押し部材１の玉押し面４がベ アリングボール１２へ当たる具合を適切にし、その状態で両部材１，２の菊座部 ９，１１を係合させることで、組付け作業が終わる（図１・図２・図７参照）。Next, from the outside, the tightening member 2 is screwed onto the shaft 5 by the central female screw portion 6, and the convex spherical surface 10 of the tightening member 2 is engaged with the concave spherical surface 8 of the ball pushing member 1. Put in a state. Then, by adjusting the screwing of the tightening member 2, the ball pushing surface 4 of the ball pushing member 1 contacts the bearing ball 12 appropriately, and in that state, the chrysanthemum seat portions 9 and 11 of both members 1 and 2 are engaged. By assembling, the assembly work is completed (see FIGS. 1, 2, and 7).
【００１８】 ｂ）次に、本考案に係る自転車用玉押しＡを用いたハブやハンガ部の回転は、 以下のようになる。B) Next, the rotation of the hub and the hanger portion using the bicycle ball pushing device A according to the present invention is as follows.
【００１９】 自転車走行中には、前または後ハブでは軸５や玉押しＡは回転せず、ハブ体１ ３が回転してそれと一体的なわん３が回転している。またハンガ部ではハンガ本 体１４・わん３が回転せず、軸５が回転してそれと一体的な玉押しＡが回転して いる。During traveling of the bicycle, the shaft 5 and the ball pusher A do not rotate in the front or rear hub, but the hub body 13 rotates and the bowl 3 integrated with it rotates. Further, in the hanger part, the hanger body 14 and the bowl 3 do not rotate, but the shaft 5 rotates and the ball push A integral with it rotates.
【００２０】 従来のものでは、そのわんや玉押しに切削加工上の誤差や焼き入れ等に伴う歪 み・変形等があると、回転時に僅かながら中心線方向へ波打ち状にブレが生じ、 わんと玉押し間でベアリングボールに対する玉たり圧力が変動し、滑らかに回転 せず、ボールの詰まりやゴロつき等が生じていた。In the conventional case, if there is an error in cutting or a distortion / deformation due to hardening in the bowl pushing, a slight waviness is generated in the center line direction during rotation, The ball pressure against the bearing ball fluctuated between the pushing and the ball pushing, the ball did not rotate smoothly, and the ball was clogged or slagged.
【００２１】 しかし本考案の玉押しＡは、上記の如く中心線Ｘ方向に２分割して、玉押し部 材１と締め込み部材２とで構成し、玉押し部材１は中央に軸５の外径よりやや大 きめの通孔７と、後側が凹球面８でかつ放射状の菊座部９を形成してあり、締め 込み部材２は中央に軸５へ螺合可能な雌ネジ部６と、上記凹球面８へ係合可能な 凸球面１０で上記凹球面８の菊座部９へ係合可能な菊座部１１を形成してある。However, the ball pushing A of the present invention is divided into two in the direction of the center line X as described above, and is constituted by the ball pushing member 1 and the tightening member 2, and the ball pushing member 1 has the shaft 5 at the center. A through hole 7 slightly larger than the outer diameter, a concave spherical surface 8 on the rear side, and a radial chrysanthemum seat portion 9 are formed, and the tightening member 2 has a female screw portion 6 which can be screwed to the shaft 5 in the center. The convex spherical surface 10 that can be engaged with the concave spherical surface 8 forms a chrysanthemum portion 11 that can be engaged with the chrysanthemum portion 9 of the concave spherical surface 8.
【００２２】 そのため、玉押しＡの玉押し部材１は、締め込み部材２との間の凹・凸球面８ ，１０および菊座部９，１１に沿って、その中心線Ｘを僅かにズラしながら単独 で揺動可能になっている（図３参照）。ハブやハンガ部の各部分に切削加工上の 誤差や歪み・変形等があって、回転しているハブのわん３やハンガ部の玉押し４ に波打ち状のブレが生じても、それに対応して上記玉押し部材１が単独で揺動す るだけで、他に影響を及ぼさない。Therefore, the ball pushing member 1 of the ball pushing A slightly shifts its center line X along the concave / convex spherical surfaces 8 and 10 between the tightening member 2 and the chrysanthemum seat portions 9 and 11. However, it can swing independently (see Fig. 3). Even if the hub 3 and the hanger 4 have rotating parts, such as cutting errors, distortions, and deformations, which cause waviness in the rotating hub 3 and hanger 4 As a result, the ball pushing member 1 only swings independently, and does not affect others.
【００２３】 なお、玉押し部材１の凹球面８と締め込み部材２の凸球面１１の各菊座部９， １１も凹・凸球面状に形成されているので、玉押し部材１が凹・凸球面８，１１ に沿ってうまく揺動する。また両菊座部９，１１の接触部分に潤滑膜を形成して あったり、上記本考案の第２の如く両菊座部９，１１の各凹凸部の形状を、噛み 合い状態時に接触面積が小さくなるように山と谷が線接触状となる形状にしたも のでは、一層揺動し易くなっている。Since the concave spherical surfaces 8 of the ball pushing member 1 and the convex spherical surfaces 9 and 11 of the convex spherical surface 11 of the tightening member 2 are also formed in a concave / convex spherical shape, the ball pushing member 1 is concave / convex. It swings well along the convex spherical surfaces 8 and 11. In addition, a lubricating film is formed on the contact portions of both chrysanthemum seat portions 9 and 11, and the shape of each concavo-convex portion of both chrysanthemum seat portions 9 and 11 as in the second aspect of the present invention is set so that the contact area during engagement is large. With a shape in which the peaks and valleys are in line contact with each other so that the value becomes smaller, it becomes easier to swing.
【００２４】 したがって、ハブのわん３やハンガ部の玉押し４の波打ち状のブレは、各玉押 し部材１の単独の揺動で吸収されてしまい、ベアリングボール１２に対する玉た り圧力は均一に維持されることになり、ボール１２に詰まりやゴロつき等が生じ ず、常に滑らかに回転するようになる。Therefore, the wavy blurring of the hub case 3 and the hanger portion 4 of the hanger is absorbed by the independent swinging of each of the ball pushing members 1, and the ball rolling pressure on the bearing balls 12 is uniform. Therefore, the ball 12 does not become clogged or sticky, and the ball 12 always rotates smoothly.
【００２５】[0025]
図１ないし図６は、本考案に係る自転車用玉押しＡを、前ハブに用いた場合の 実施例を示す（後ハブに用いた場合もほぼ同一構造になるので、その説明は省略 する）。 1 to 6 show an embodiment in which the bicycle ball pushing device A according to the present invention is used for a front hub (the structure is almost the same when used for a rear hub, so the description thereof is omitted). .
【００２６】 中空横長状のハブ体１３の両側に各々ハブのわんを設け、また内部にハブの軸 ５を通挿して、上記各ハブのわん内にベアリングボール１２を係合させ、その外 側から本考案に係るハブの玉押しＡを、ハブの軸５両側に螺合させてある。なお ハブのわん３は、図示例ではハブ体１３と別体のものとして、ハブ体１３両側に 打ち込み固定してあるが、ハブ体と一体成形したものでもよい。Hub hollows are provided on both sides of the hollow horizontally elongated hub body 13, respectively, and the shaft 5 of the hub is inserted thereinto, and the bearing balls 12 are engaged in the hollows of the respective hubs. The hub ball push A according to the present invention is screwed on both sides of the hub shaft 5. In the illustrated example, the hub case 3 is formed separately from the hub body 13 and is fixed to both sides of the hub body 13, but may be integrally formed with the hub body 13.
【００２７】 上記ハブの玉押しＡは、従来の一体物と異なり、中心線Ｘ方向に２分割して、 ハブのわん３内のベアリングボール１２に対面する玉押し面４をもつ玉押し部材 １と、ハブの軸５へ螺合用の雌ネジ部６をもつ締め込み部材２とに分離して構成 してあり、かつその両部材１，２間を平面でもテーパー面でもなく、凹球面と凸 球面とで当接させてある。Unlike the conventional integrated member, the ball pushing A of the hub is divided into two in the center line X direction, and the ball pushing member 4 has the ball pushing surface 4 facing the bearing ball 12 in the hub housing 1. And a tightening member 2 having a female screw portion 6 for screwing onto the hub shaft 5, and the two members 1 and 2 are neither flat nor tapered, and have a concave spherical surface and a convex surface. It is in contact with the spherical surface.
【００２８】 即ち、上記玉押しＡの玉押し部材１は、中央にハブの軸５へ余裕をもって套合 可能に、該軸５の外径よりやや大きい内径の通孔７を形成してあり、また玉押し 面４と反対の後側面を凹球面８に形成するとともに、該凹球面８に放射状に多数 本の凹凸部のある菊座部９を形成してある。That is, the ball pushing member 1 of the ball pushing A has a through hole 7 having an inner diameter slightly larger than the outer diameter of the shaft 5 so that it can be fitted in the hub shaft 5 with a margin at the center. Further, the rear side surface opposite to the ball pushing surface 4 is formed as a concave spherical surface 8, and the concave spherical surface 8 is formed with a plurality of chrysanthemum portions 9 having a plurality of uneven portions radially.
【００２９】 他方、上記玉押しＡの締め込み部材２は、上記玉押し部材１の凹球面８に対向 する面を、その凹球面８へ係合可能な凸球面１１に形成するとともに、該凸球面 １１に上記凹球面８の菊座部９と噛み合い可能に、放射状に多数本の凹凸部のあ る菊座部１１を形成してある。On the other hand, the tightening member 2 of the ball pushing member A forms a surface facing the concave spherical surface 8 of the ball pushing member 1 into a convex spherical surface 11 engageable with the concave spherical surface 8 and On the spherical surface 11, a chrysanthemum seat portion 11 having a large number of concavo-convex portions is formed so as to be able to mesh with the chrysanthemum seat portion 9 of the concave spherical surface 8.
【００３０】 上記玉押し部材１と締め込み部材２の凹・凸球面８，１０の菊座部９，１１の 各凹凸部間の間隔は、ここでは１ｍｍ程度にしてあるが、多数本であればそれに 限るものではない（図６・５参照）参照）。The distance between the concave and convex spherical surfaces 8 and 10 of the ball pushing member 1 and the tightening member 2 and the concave and convex portions of the chrysanthemum portions 9 and 11 is about 1 mm here, but it may be a large number. However, it is not limited to this (see Fig. 6.5).
【００３１】 また図７は、本考案に係る自転車用玉押しＡを、ハンガ部に用いた実施例を示 している。中空横長状のハンガ本体１４の両側に各々ハンガのわん３を打ち込み 固定し、各ハンガのわん３内にベアリングボール１２を転動可能に係合させると ともに、クランクの軸５を通挿して、該軸５の各外側からハンガの玉押しＡを螺 合させてある。FIG. 7 shows an embodiment in which the bicycle ball pusher A according to the present invention is used in the hanger portion. The hanger bowls 3 are driven and fixed on both sides of the hollow horizontally elongated hanger body 14, and the bearing balls 12 are rotatably engaged in the hanger bowls 3 and the crank shaft 5 is inserted. Ball pushers A of hangers are screwed from the respective outer sides of the shaft 5.
【００３２】 上記ハンガの玉押しＡも、従来の一般的なものと異なり、中心線Ｘ方向に２分 割して、ベアリングボール１２に対面する玉押し面４をもつ玉押し部材１と、ク ランクの軸５へ螺合用の雌ネジ部６をもつ締め込み部材２とに分離して構成し、 かつその両部材１，２間を平面でもテーパー面でもなく、凹・凸球面で当接させ てある。Unlike the conventional general hanger pusher A, the hanger pusher A is divided into two in the center line X direction, and has a ball push member 1 having a ball push face 4 facing the bearing ball 12, The shaft 5 of the rank is constructed separately from the tightening member 2 having the female screw portion 6 for screwing, and the both members 1 and 2 are not flat or tapered, but contact with a concave or convex spherical surface. There is.
【００３３】 即ち、上記玉押しＡの玉押し部材１は、中央にクランクの軸５へ余裕をもって 套合可能に、クランクの軸５の外径よりやや大きい内径の通孔７を形成し、玉押 し面４と反対の後側面を凹球面８に形成するとともに、該凹球面８に放射状に多 数本の凹凸部のある菊座部９を形成してある。That is, the ball pushing member 1 of the above-mentioned ball pushing A has a through hole 7 having an inner diameter slightly larger than the outer diameter of the crank shaft 5 so that it can be fitted to the crank shaft 5 with a margin at the center. A rear side surface opposite to the pressing surface 4 is formed as a concave spherical surface 8, and the concave spherical surface 8 is formed with a plurality of chrysanthemum portions 9 having a plurality of uneven portions radially.
【００３４】 他方、上記玉押しＡの締め込み部材２は、上記玉押し部材１の凹球面８に対向 する面を、該凹球面８へ係合可能な凸球面１０に形成するとともに、該凸球面１ ０に上記凹球面８の菊座部９と噛み合い可能に、放射状に多数本の凹凸部のある 菊座部１１を形成してある。On the other hand, the tightening member 2 of the ball pushing A forms a surface facing the concave spherical surface 8 of the ball pushing member 1 into a convex spherical surface 10 engageable with the concave spherical surface 8 and On the spherical surface 10, a chrysanthemum seat portion 11 having a large number of concavo-convex portions is formed radially so as to be able to mesh with the chrysanthemum seat portion 9 of the concave spherical surface 8.
【００３５】 なおここでの両部材１，２の凹・凸球面８，１０の菊座部９，１１の各凹凸部 の間隔も、１ｍｍ程度にしてあるが、多数本であればそれに限るものではない。The interval between the concave and convex spherical surfaces 8 and 10 of the members 1 and 2 and the concave and convex portions of the chrysanthemum portions 9 and 11 is also set to about 1 mm. is not.
【００３６】 図８は、上記本考案の第２のものに関し、上記玉押し部材１の菊座部９と締め 込み部材２の菊座部１１の各凹凸部の拡大断面形状を示している。噛み合い状態 時に各凹凸部の山と谷が線接触状になる如く、ここでは玉押し部材１の菊座部９ を、各凹部が断面台形状凹部に、各凸部が歯幅の狭い断面３角形状凸部に形成し てある。FIG. 8 shows an enlarged cross-sectional shape of each concavo-convex portion of the chrysanthemum seat portion 9 of the ball pushing member 1 and the chrysanthemum seat portion 11 of the tightening member 2 in the second embodiment of the present invention. In order to make the peaks and troughs of each concavo-convex portion line-contact with each other in the meshed state, here, the chrysanthemum seat portion 9 of the ball pushing member 1 is formed such that each concave portion is a trapezoidal sectional concave portion and each convex portion is a narrow tooth width cross section It is formed on a rectangular convex portion.
【００３７】[0037]
以上で明らかな如く、本考案に係る自転車用玉押しによれば、ハブやハンガ部 における各部品に切削加工の仕上げ誤差や焼き入れに伴う歪み・変形等が残って いても、回転時にそれらが原因で生じる中心線方向へのブレを自動的に吸収する ことができ、ベアリングボールの詰まりやゴロつき等を無くし、回転を常に滑ら かにすることができる。 As is clear from the above, according to the bicycle wheel pushing device of the present invention, even if finishing errors of cutting work and distortion / deformation due to quenching remain in each component of the hub and the hanger, they are not It is possible to automatically absorb the blurring in the direction of the center line caused by the cause, eliminate the clogging of the bearing ball and the sticking, and make the rotation always smooth.
【００３８】 即ち、一般にハブやハンガ部の玉押しやわん等には、切削加工の仕上げ誤差や 焼き入れに伴う歪み・変形が残っており、わんをハブ体やハンガ本体へ打ち込み 固定時に歪み・変形等が生じているので、回転時に中心線方向へ言わば波打ち状 にブレが生じている。そのため、玉押しとわん間でベアリングボールに対する玉 たり圧力が不均一になり、回転時にハブやハンガ部でボールの詰まりやゴロつき 等が生じて、滑らかな回転を妨げていた。That is, generally, the hub and the hanger portion have a ball stamp, a bowl, and the like, which have a finishing error in cutting and distortion / deformation due to quenching. As it is deformed, it is wavy in the direction of the center line during rotation. As a result, the ball pressure against the bearing ball becomes uneven between the ball pushing and the ball, and the hub and hanger parts are clogged with the ball or sticking during rotation, which hinders smooth rotation.
【００３９】 しかし本考案に係る玉押しは、上記の如く中心線方向に２分割して、玉押し部 材と締め込み部材とで構成し、玉押し部材は中央に軸の外径よりやや大きめの通 孔と、後側が凹球面で放射状の菊座部を有し、締め込み部材は中央に軸へ螺合可 能な雌ネジと、上記凹球面と菊座部へ係合可能な凸球面で放射状の菊座部を形成 してある。However, the ball pushing device according to the present invention is divided into two in the direction of the center line as described above, and is constituted by the ball pushing member and the tightening member, and the ball pushing member is slightly larger than the outer diameter of the shaft at the center. Through hole, and a concave spherical surface on the rear side that is radial, and the tightening member has a female screw that can be screwed into the shaft in the center and a convex spherical surface that can be engaged with the concave spherical surface and the spherical surface. Form a radial chrysanthemum seat.
【００４０】 そのため、ハブやハンガ部で切削加工上の誤差や歪み・変形等により、回転時 にわんや玉押しに波打ち状のブレが生じても、本考案に係る玉押しの玉押し部材 が、締め込み部材との間の凸球面と凹球面に沿って、その中心線を僅かにズラし ながら単独で揺動することができ、他へは影響を及ぼさず吸収してしまうことが できる。Therefore, even if a wavy shake occurs in the bowl or the ball push at the time of rotation due to an error in cutting, distortion, deformation, etc. at the hub or hanger, the ball push member according to the present invention can be Along with the convex spherical surface and the concave spherical surface between the tightening member, the center line can be slightly slanted and can be independently swung, and the other can be absorbed without affecting the others.
【００４１】 したがって、ハブやハンガ部のわん玉押しの波打ち状のブレは、玉押し部材の 単独の揺動で吸収されて、ベアリングボールに対する玉たり圧力は均一に維持で きるので、ボールの詰まりやゴロつき等が生じなくなり、常に滑らかな回転を維 持することができる。Therefore, the wavy movement of the ball pushing the hub or the hanger portion is absorbed by the single swing of the ball pushing member, and the ball rolling pressure on the bearing balls can be maintained uniformly. It does not cause stickiness or stickiness, and can always maintain a smooth rotation.
【図１】本考案に係る自転車用玉押しを前ハブに用いた
実施例で、右側部の一部切り欠き平面図である。FIG. 1 is a partially cutaway plan view of a right side portion of an embodiment in which a bicycle ball pushing device according to the present invention is used for a front hub.
【図２】本考案に係る自転車用玉押しを前ハブの用いた
実施例で、左側部の一部切り欠き平面図である。FIG. 2 is a partially cutaway plan view of a left side portion of the bicycle hub control according to the present invention using a front hub.
【図３】図１で示した実施例の作動状態を示す拡大平面
図である。FIG. 3 is an enlarged plan view showing an operating state of the embodiment shown in FIG.
【図４】図１で示した実施例の自転車用玉押しを分解し
た拡大横断平面図である。FIG. 4 is an enlarged transverse plan view of the bicycle wheel pushing device of the embodiment shown in FIG.
【図５】図４で示した自転車用玉押しの締め込み部材の
凹球面側を示す側面図である。FIG. 5 is a side view showing a concave spherical surface side of the tightening member for pushing the bicycle ball shown in FIG.
【図６】図４で示した自転車用玉押しの玉押し部材の凹
球面側を示す側面図である。6 is a side view showing the concave spherical surface side of the ball pushing member of the bicycle ball pushing shown in FIG. 4. FIG.
【図７】本考案に係る自転車用玉押しをハンガ部に用い
た実施例で、右側部の一部切り欠き平面図である。FIG. 7 is a partially cutaway plan view of the right side portion of the embodiment in which the bicycle ball pushing device according to the present invention is used for the hanger portion.
【図８】本考案に係る自転車用玉押しの他の実施例で、
玉押し部材と締め込み部材の各菊座部が噛み合い状態時
の一部拡大断面図である。FIG. 8 is another embodiment of the bicycle wheel pushing device according to the present invention,
It is a partial expanded sectional view when each chrysanthemum seat part of a ball pushing member and a tightening member has meshed.
Ａ−自転車用玉押し １−玉押し部材 ２−締め込み部材 ３−わん ４−玉押し面 ５−軸 ６−雌ネジ部 ７−通孔 ８−凹球面 ９−菊座部 １０−凸球面 １１−菊座部 １２−ベアリングボール １３−ハブ体 １４−ハンガ本体 １５−ワッシャ １６−中ナット １７−締付けナ
ット Ｘ−中心線A-Bamboo ball pusher 1-Boom pusher member 2-Tightening member 3-Wooden 4-Brushing face 5-Axis 6-Female screw portion 7-Through hole 8-Concave spherical surface 9-Chrysanthemum portion 10-Convex spherical surface 11 -Chrysanthemum seat 12-Bearing ball 13-Hub body 14-Hanger body 15-Washer 16-Medium nut 17-Tightening nut X-Center line
Claims (2)
２分割して、わん３内のベアリングボール１２に対面す
る玉押し面４をもつ玉押し部材１と、軸５へ螺合させる
雌ネジ部６をもつ締め込み部材２とで構成したものであ
り、 上記玉押し部材１は、中央に軸５の外径よりやや大きめ
の通孔７を形成するとともに、玉押し面４と反対の後側
面を凹球面８に形成して、該凹球面８に放射状に多数本
の凹凸部のある菊座部９を形成し、 他方、締め込み部材２は、上記玉押し部材１の凹球面８
に対向する面を、該凹球面８へ係合可能な凸球面１０に
形成して、該凸球面１０に上記凹球面８の菊座部９へ係
合可能な菊座部１１を形成したことを特徴とする、自転
車用玉押し。1. A bicycle ball pushing device A is divided into two parts in a direction of a center line X thereof, and a ball pushing member 1 having a ball pushing surface 4 facing a bearing ball 12 in a bowl 3 is screwed to a shaft 5. The ball pushing member 1 has a through hole 7 which is slightly larger than the outer diameter of the shaft 5 in the center, and the ball pushing surface 4 and The opposite rear side surface is formed into a concave spherical surface 8 and the chrysanthemum seat portion 9 having a large number of concave and convex portions is formed radially on the concave spherical surface 8. On the other hand, the tightening member 2 is the concave portion of the ball pushing member 1. Spherical surface 8
A surface facing to the concave spherical surface 8 is formed into a convex spherical surface 10 which can be engaged with the concave spherical surface 8, and a concave seat portion 11 which can be engaged with the concave seat portion 9 of the concave spherical surface 8 is formed on the convex spherical surface 10. A bicycle wheel featured with.
２分割して、わん３内のベアリングボール１２に対面す
る玉押し面４をもつ玉押し部材１と、軸５へ螺合させる
雌ネジ部６をもつ締め込み部材２とで構成したものであ
り、 上記玉押し部材１は、中央に軸５の外径よりやや大きめ
の通孔７を形成するとともに、玉押し面４と反対の後側
面を凹球面８に形成して、該凹球面８に放射状に多数本
の凹凸部のある菊座部９を形成し、 他方、締め込み部材２は、上記玉押し部材１の凹球面８
に対向する面を、該凹球面８へ係合可能な凸球面１０に
形成して、該凸球面１０に上記凹球面８の菊座部９へ係
合可能な菊座部１１を形成し、 かつ、上記玉押し部材１の菊座部９と締め込み部材２の
菊座部１１の各凹凸部の形状を、噛み合い状態時に山と
谷が線接触状になる形状に形成したことを特徴とする、
自転車用玉押し。2. A bicycle ball pushing member A is divided into two in the direction of the center line X, and a ball pushing member 1 having a ball pushing surface 4 facing the bearing ball 12 in the bowl 3 is screwed to a shaft 5. The ball pushing member 1 has a through hole 7 which is slightly larger than the outer diameter of the shaft 5 in the center, and the ball pushing surface 4 and The opposite rear side surface is formed into a concave spherical surface 8 and the chrysanthemum seat portion 9 having a large number of concave and convex portions is formed radially on the concave spherical surface 8. On the other hand, the tightening member 2 is the concave portion of the ball pushing member 1. Spherical surface 8
Is formed on the convex spherical surface 10 that can be engaged with the concave spherical surface 8, and the convex spherical surface 10 is formed with a chrysanthemum portion 11 that can be engaged with the chrysanthemum portion 9 of the concave spherical surface 8. In addition, the shape of each concavo-convex portion of the chrysanthemum seat portion 9 of the ball pushing member 1 and the chrysanthemum seat portion 11 of the tightening member 2 is formed in a shape in which peaks and valleys are in line contact with each other when engaged. To do
Cycling for bicycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994009735U JP3006817U (en) | 1994-07-15 | 1994-07-15 | Bicycle wheel push |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994009735U JP3006817U (en) | 1994-07-15 | 1994-07-15 | Bicycle wheel push |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3006817U true JP3006817U (en) | 1995-01-31 |
Family
ID=43142675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1994009735U Expired - Lifetime JP3006817U (en) | 1994-07-15 | 1994-07-15 | Bicycle wheel push |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3006817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010058594A (en) * | 2008-09-02 | 2010-03-18 | Jtekt Corp | Fastening structure of bearing for axle |
| WO2011129027A1 (en) * | 2010-04-12 | 2011-10-20 | 有限会社御器所技研 | Hub device for bicycle |
-
1994
- 1994-07-15 JP JP1994009735U patent/JP3006817U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010058594A (en) * | 2008-09-02 | 2010-03-18 | Jtekt Corp | Fastening structure of bearing for axle |
| WO2011129027A1 (en) * | 2010-04-12 | 2011-10-20 | 有限会社御器所技研 | Hub device for bicycle |
| JP5514303B2 (en) * | 2010-04-12 | 2014-06-04 | 有限会社御器所技研 | Bicycle hub device |
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