JP5147432B2

JP5147432B2 - Mudguard for bicycle rear wheel

Info

Publication number: JP5147432B2
Application number: JP2008019443A
Authority: JP
Inventors: 政之正瑞
Original assignee: オージーケー技研株式会社
Priority date: 2008-01-30
Filing date: 2008-01-30
Publication date: 2013-02-20
Anticipated expiration: 2028-01-30
Also published as: JP2009179164A

Description

本発明は、自転車の後輪用泥除け部材に関するものである。 The present invention relates to a mudguard member for a rear wheel of a bicycle.

自転車の後輪用泥除け部材には、自転車の立てパイプやシートポスト等の被取付部に固定される筒状取付部と、筒状取付部から後方に突出されて自転車の後輪の上方を覆う泥除け本体とを備え、泥除け本体は、その前端連結部により筒状取付部に連結され、筒状取付部は、前端側に開口部を有する断面Ｃ字形に形成され、筒状取付部を開口部から被取付部に外嵌して筒状取付部を被取付部に着脱自在に外嵌固定するようにしたものがある（例えば特許文献１，２）が、従来のこの種の自転車の後輪用泥除け部材は、筒状取付部が、泥除け本体の前端連結部の上下幅と同一の上下幅を有する短い筒状に形成されており、このような短い筒状取付部では自転車の立てパイプやシートポスト等の被取付部に強固に外嵌固定することができず、自転車の走行時等に後輪用泥除け部材がガタ付いたり被取付部から外れたりするおそれがあるので、筒状取付部の他に、自転車のバックホーク等に着脱自在に外嵌固定する左右一対のＣ字形の取付部を設けるようにしていた（例えば特許文献１，２）。
実公平６−４４７８６号公報実開平４−７６５９０号公報 The bicycle rear wheel mudguard member includes a cylindrical mounting portion that is fixed to a mounting portion such as a bicycle standing pipe and a seat post, and projects rearward from the cylindrical mounting portion to cover the upper portion of the bicycle rear wheel. A mudguard body, the mudguard body is connected to the cylindrical mounting portion by a front end connecting portion thereof, and the cylindrical mounting portion is formed in a C-shaped cross section having an opening on the front end side, and the cylindrical mounting portion is opened to the opening There are some which are externally fitted to the attached part and the cylindrical attaching part is detachably fitted and fixed to the attached part (for example, Patent Documents 1 and 2). The mudguard member has a cylindrical mounting portion formed in a short cylindrical shape having the same vertical width as the vertical width of the front end connecting portion of the mudguard main body. In such a short cylindrical mounting portion, A bicycle that cannot be firmly fitted and fixed to the mounted part such as a seat post. Since there is a possibility that the rear wheel mudguard member may rattle or come off from the mounted part during traveling, a pair of left and right Cs that are detachably fitted and fixed to the back hawk of the bicycle in addition to the cylindrical mounting part A character-shaped mounting portion was provided (for example, Patent Documents 1 and 2).
Japanese Utility Model Publication No. 6-44786 Japanese Utility Model Publication No. 4-76590

従って、従来の場合、自転車の立てパイプやシートポスト等の被取付部に外嵌固定される筒状取付部の他に、自転車のバックホーク等に取付られるＣ字形の取付部が設けられていたため、後輪用泥除け部材の全体の構造が複雑になり、後輪用泥除け部材の製造費が高くなるという問題があった。また、自転車に後輪用泥除け部材を取り付けたり取り外したりする場合、筒状取付部を自転車の立てパイプやシートポスト等の被取付部に着脱する他に、Ｃ字形の取付部をバックホーク等に着脱する必要があり、このため、後輪用泥除け部材の取り付け及び取り外しが非常に面倒になった。 Therefore, in the conventional case, in addition to the cylindrical mounting portion that is externally fixed to the mounting portion such as a bicycle standpipe or seat post, a C-shaped mounting portion that is attached to the back hawk or the like of the bicycle is provided. The overall structure of the rear wheel mudguard member is complicated, and the manufacturing cost of the rear wheel mudguard member increases. In addition, when attaching or removing the rear wheel mudguard member to the bicycle, in addition to attaching and detaching the cylindrical attachment portion to the attachment portion such as a bicycle standing pipe or seat post, the C-shaped attachment portion can be used as a back hawk or the like. Therefore, it was very troublesome to attach and remove the rear wheel mudguard member.

本発明は上記問題点に鑑み、ガタ付いたり不測に外れたりするおそれもなく、自転車に確実に固定できると共に、製造容易でかつ安価に製造することができ、しかも自転車に対して簡単に取り付けたり取り外すことができるようにしたものである。 In view of the above problems, the present invention can be securely fixed to a bicycle without any risk of rattling or accidental disconnection, can be manufactured easily and inexpensively, and can be easily attached to the bicycle. It can be removed.

この技術的課題を解決する本発明の技術的手段は、自転車のシートポスト等の被取付部に固定される筒状取付部と、筒状取付部から後方に突出されて自転車の後輪の上方を覆う泥除け本体とを備え、泥除け本体は、その前端連結部により筒状取付部に連結され、筒状取付部は、周方向の一端側に開口部を有する断面Ｃ字形に形成され、筒状取付部を開口部から被取付部に外嵌して筒状取付部を被取付部に着脱自在に外嵌固定するようにした自転車の後輪用泥除け部材において、
筒状取付部は、泥除け本体の前端連結部から上下方向の少なくとも一方側に突出するように軸方向に長く形成され、
泥除け本体の前端連結部は、筒状取付部を揺動操作するために握り易くなるようにその左右幅が筒状取付部に向けて徐々に小幅になると共に上下幅が筒状取付部に向けて徐々に小幅になるように先細り状に形成されている点にある。 The technical means of the present invention for solving this technical problem includes a cylindrical mounting portion fixed to a mounted portion such as a bicycle seat post, and a rear protruding from the cylindrical mounting portion above the rear wheel of the bicycle. A mudguard body that is connected to the cylindrical mounting portion by a front end connecting portion thereof, and the cylindrical mounting portion is formed in a C-shaped cross section having an opening at one end side in the circumferential direction. In the bicycle rear wheel mudguard member, the attachment portion is externally fitted to the attached portion from the opening, and the cylindrical attachment portion is detachably fitted to the attached portion.
The cylindrical mounting portion is formed long in the axial direction so as to protrude from the front end coupling portion of the mudguard body to at least one side in the vertical direction ,
The front end connecting part of the mudguard main body is gradually narrowed toward the cylindrical mounting part and the vertical width is directed toward the cylindrical mounting part so that it can be easily gripped to swing the cylindrical mounting part. Therefore, it is formed in a tapered shape so as to gradually become smaller .

また、本発明の他の技術的手段は、自転車のシートポスト等の被取付部に固定される筒状取付部と、筒状取付部から後方に突出されて自転車の後輪の上方を覆う泥除け本体とを備え、泥除け本体は、その前端連結部により筒状取付部に連結され、筒状取付部は、周方向の一端側に開口部を有する断面Ｃ字形に形成され、筒状取付部を開口部から被取付部に外嵌して筒状取付部を被取付部に着脱自在に外嵌固定するようにした自転車の後輪用泥除け部材において、
筒状取付部は、泥除け本体の前端連結部から上下方向の少なくとも一方側に突出するように軸方向に長く形成され、
泥除け本体の前端連結部は、筒状取付部の軸方向一端部に対して、該一端部の剛性を高めるべく筒状取付部の後側の半周に亘って一体に連結されている点にある。 Another technical means of the present invention includes a cylindrical mounting portion that is fixed to a mounted portion such as a bicycle seat post, and a mudguard that projects rearward from the cylindrical mounting portion and covers the upper part of the rear wheel of the bicycle. A mudguard main body is connected to the cylindrical mounting portion by a front end connecting portion thereof, and the cylindrical mounting portion is formed in a C-shaped cross section having an opening at one end side in the circumferential direction. In the mudguard member for the rear wheel of the bicycle, which is externally fitted to the attached part from the opening and the cylindrical attaching part is detachably fitted to the attached part.
The cylindrical mounting portion is formed long in the axial direction so as to protrude from the front end coupling portion of the mudguard body to at least one side in the vertical direction,
The front end connecting portion of the mudguard body is integrally connected to the axial one end of the cylindrical mounting portion over the rear half of the cylindrical mounting portion so as to increase the rigidity of the one end portion. .

また、本発明の他の技術的手段は、泥除け本体の前端連結部は、筒状取付部の軸方向一端部に対して、該一端部の剛性を高めるべく筒状取付部の後側の半周に亘って一体に連結されている点にある。
また、本発明の他の技術的手段は、筒状取付部の少なくとも一端部に、シートポスト等の被取付部に対して筒状取付部の揺動を許容する弛緩部が設けられている点にある。 According to another technical means of the present invention, the front end connecting portion of the mudguard main body has a half circumference on the rear side of the cylindrical mounting portion so as to increase the rigidity of the one end portion with respect to one axial end portion of the cylindrical mounting portion. It is in the point connected integrally .
Another technical means of the present invention is that at least one end of the cylindrical mounting portion is provided with a loosening portion that allows the cylindrical mounting portion to swing relative to the mounted portion such as a seat post. It is in.

また、本発明の他の技術的手段は、前記弛緩部は、筒状取付部の端部を筒状取付部の軸方向外端に向かうに従って徐々に大きく広がる外広がり状に形成してなる点にある。
また、本発明の他の技術的手段は、前記弛緩部は、筒状取付部の端部に開口部に対向するように切欠部を設けてなる点にある。
また、本発明の他の技術的手段は、前記筒状取付部とシートポスト等の被取付部との間に介在されるスペーサ部材が具備され、筒状取付部をスペーサ部材を介してシートポスト等の被取付部に外嵌固定するようにした点にある。 According to another technical means of the present invention, the relaxing portion is formed such that an end portion of the cylindrical mounting portion spreads outward gradually toward the outer end in the axial direction of the cylindrical mounting portion. It is in.
Another technical means of the present invention resides in that the relaxing portion is provided with a notch at the end of the cylindrical mounting portion so as to face the opening .
Another technical means of the present invention includes a spacer member interposed between the cylindrical mounting portion and a mounted portion such as a seat post, and the cylindrical mounting portion is inserted into the seat post via the spacer member. It is in the point which carried out the outer fitting fixation to the to-be-attached parts, such as.

また、本発明の他の技術的手段は、筒状取付部がスペーサ部材に外嵌可能になるように、スペーサ部材は筒状取付部よりも小径の断面Ｃ字形に形成され、スペーサ部材の周方向の一端側に筒状取付部の開口部に対応する開口部が設けられ、スペーサ部材は、開口部か
ら被取付部に外嵌して被取付部に着脱自在に外嵌固定するように構成され、スペーサ部材に筒状取付部を外嵌させた際に筒状取付部をスペーサ部材に対して廻り止めする廻り止め機構が、筒状取付部とスペーサ部材との間に設けられている点にある。 Another technical means of the present invention is that the spacer member is formed in a C-shaped section having a smaller diameter than the cylindrical mounting portion so that the cylindrical mounting portion can be fitted onto the spacer member. An opening corresponding to the opening of the cylindrical mounting portion is provided on one end side in the direction, and the spacer member is configured to be externally fitted from the opening to the mounted portion and detachably fixed to the mounted portion. A detent mechanism is provided between the cylindrical mounting portion and the spacer member to prevent the cylindrical mounting portion from rotating relative to the spacer member when the cylindrical mounting portion is externally fitted to the spacer member. It is in.

本発明によれば、筒状取付部は、泥除け本体の前端連結部から上下方向の少なくとも一方側に突出するように軸方向に長く形成されているので、自転車にガタ付いたり不測に外れたりするおそれもなく、確実に固定できる。また、自転車の被取付部に外嵌固定される筒状取付部の他に、バックホーク等に取付られるＣ字形の取付部を設ける必要がなくなるため、後輪用泥除け部材はその構造が簡単になって製造容易でかつ安価に製造することができ、しかも、自転車に対して簡単に取り付けたり取り外すことができるようになる。 According to the present invention, the cylindrical mounting portion is formed long in the axial direction so as to protrude from the front end connecting portion of the mudguard main body to at least one side in the vertical direction. It can be fixed securely without fear. In addition, it is not necessary to provide a C-shaped mounting portion that is attached to the back hawk or the like in addition to the cylindrical mounting portion that is fitted and fixed to the mounted portion of the bicycle, so that the rear wheel mudguard member has a simple structure. Thus, it is easy to manufacture and can be manufactured at low cost, and it can be easily attached to and detached from the bicycle.

以下、本発明の一実施の形態を図面に基づいて説明する。図１において、１は自転車で、上パイプ２、立てパイプ３、下パイプ４、チェーンステー５、後輪６、サドル７、ペダル８、バックホーク９、シートポスト１０等を有している。
図１〜図６において、１３は後輪用泥除け部材で、自転車１のシートポスト１０を被取付部としてここに外嵌固定される筒状取付部１５と、筒状取付部１５から後方に突出されて自転車１の後輪６の上方を覆う泥除け本体１７とを備える。泥除け本体１７は、その前端連結部１６により筒状取付部１５に連結されている。筒状取付部１５と泥除け本体１７とは、弾性を有する硬質の合成樹脂等により一体に形成されている。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a bicycle having an upper pipe 2, a standing pipe 3, a lower pipe 4, a chain stay 5, a rear wheel 6, a saddle 7, a pedal 8, a back hawk 9, a seat post 10, and the like.
1 to 6, reference numeral 13 denotes a rear wheel mudguard member, which protrudes rearward from the cylindrical mounting portion 15, and a cylindrical mounting portion 15 that is externally fitted and fixed to the seat post 10 of the bicycle 1 as a mounted portion. And a mudguard body 17 that covers the rear wheel 6 of the bicycle 1. The mudguard body 17 is connected to the cylindrical mounting portion 15 by the front end connecting portion 16. The cylindrical mounting portion 15 and the mudguard body 17 are integrally formed of a hard synthetic resin having elasticity.

筒状取付部１５は、図７に示すように、周方向の前端（一端）側に開口部１９を有する断面Ｃ字形に形成され、筒状取付部１５を開口部１９から自転車１のシートポスト（被取付部）１０に外嵌して筒状取付部１５をシートポスト１０に着脱自在に外嵌固定するように構成されている。
筒状取付部１５は、泥除け本体１７の前端連結部１６から下方側に突出するように軸方向に長く形成されている。筒状取付部１５の上端部に、シートポスト１０に対して筒状取付部１５の揺動（特に前後揺動）を許容する弛緩部２０が設けられている。 As shown in FIG. 7, the cylindrical mounting portion 15 is formed in a C-shaped cross section having an opening 19 on the front end (one end) side in the circumferential direction, and the cylindrical mounting portion 15 is connected to the seat post of the bicycle 1 from the opening 19. (To-be-attached part) It is comprised so that the cylindrical attachment part 15 may be externally fitted and fixed to the seatpost 10 detachably.
The cylindrical mounting portion 15 is formed long in the axial direction so as to protrude downward from the front end connecting portion 16 of the mudguard body 17. At the upper end of the cylindrical mounting portion 15, a loosening portion 20 that allows the cylindrical mounting portion 15 to swing (particularly back and forth) with respect to the seat post 10 is provided.

筒状取付部１５の弛緩部２０よりも下方側は、その内径がシートポスト１０の外径よりもやや小径に形成されており、筒状取付部１５をシートポスト１０に外嵌した際に、筒状取付部１５が弾性変形により径が広がってその弾性変形の復元力により筒状取付部１５がシートポスト１０に強固に外嵌固定されるように構成されている。
筒状取付部１５の弛緩部２０は、筒状取付部１５の端部を筒状取付部１５の軸方向外端に向かうに従って徐々に大きく広がる外広がり状（ラッパ状）に形成してなる。開口部１９の弛緩部２０側の開口端縁同士は上方に向けて徐々に左右に大きく離間するように傾斜しており、開口部１９の弛緩部２０側（上端部側）は上方に向けて徐々に左右に大きく広がっている。 On the lower side of the loosened portion 20 of the cylindrical mounting portion 15, the inner diameter is formed to be slightly smaller than the outer diameter of the seat post 10, and when the cylindrical mounting portion 15 is externally fitted to the seat post 10, The cylindrical mounting portion 15 is configured such that its diameter increases due to elastic deformation, and the cylindrical mounting portion 15 is firmly fitted and fixed to the seat post 10 by the restoring force of the elastic deformation.
The loosening portion 20 of the cylindrical mounting portion 15 is formed so that the end portion of the cylindrical mounting portion 15 spreads outward (trumpet shape) gradually widening toward the outer end in the axial direction of the cylindrical mounting portion 15. The opening edges of the opening 19 on the relaxing portion 20 side are inclined so as to be gradually separated from each other toward the upper side, and the relaxing portion 20 side (upper end side) of the opening 19 faces upward. It gradually spreads from side to side.

泥除け本体１７は、図８に示すように、上方に向けて凸状になった断面円弧状に形成されると共に、上下幅が後方に向かうに従って徐々に小さくなるように湾曲形成されている。
泥除け本体１７の前端連結部１６は、筒状取付部１５の上端部（軸方向一端部）に対して筒状取付部１５の後側の半周に亘って一体に連結され、これにより、筒状取付部１５の上端部（軸方向の一端部）の剛性が高められている。前端連結部１６は、その左右幅が筒状取付部１５に向けて徐々に小幅になると共に上下幅が筒状取付部１５に向けて徐々に小幅になるように先細り状に形成されており、これにより、筒状取付部１５を揺動操作するために前端連結部１６が握り易くなるように構成されている。 As shown in FIG. 8, the mudguard body 17 is formed in a circular arc shape that is convex upward, and is curved so that the vertical width gradually decreases toward the rear.
The front end connecting portion 16 of the mudguard main body 17 is integrally connected to the upper end portion (one axial end portion) of the cylindrical mounting portion 15 over the rear half of the cylindrical mounting portion 15. The rigidity of the upper end portion (one end portion in the axial direction) of the attachment portion 15 is enhanced. The front end connecting portion 16 is formed in a tapered shape such that the left and right width gradually decreases toward the cylindrical mounting portion 15 and the vertical width gradually decreases toward the cylindrical mounting portion 15. Thereby, in order to swing the cylindrical attachment portion 15, the front end connecting portion 16 is configured to be easily gripped.

上記実施の形態によれば、後輪用泥除け部材１３を自転車１に取り付ける場合、泥除け本体１７の前端連結部１６を手で把持して、筒状取付部１５をシートポスト１０の後側から、図６に鎖線で示すように筒状取付部１５を前上がりの前傾姿勢にした状態で、開口部１９の弛緩部２０側（上側）をシートポスト１０に向けて押し付けて筒状取付部１５の弾性変形により開口部１９を左右に広げながら外嵌させた後、筒状取付部１５を垂直状に向くように揺動させながら筒状取付部１５の弛緩部２０より下方側を外嵌させて行けばよく
、筒状取付部１５の全体をシートポスト１０に簡単に外嵌固定することができる。 According to the above embodiment, when the rear wheel mudguard member 13 is attached to the bicycle 1, the front end connecting part 16 of the mudguard main body 17 is gripped by hand, and the cylindrical mounting part 15 is moved from the rear side of the seat post 10. In a state where the cylindrical mounting portion 15 is in a forward-tilting posture as shown by a chain line in FIG. 6, the loosening portion 20 side (upper side) of the opening 19 is pressed toward the seat post 10 to press the cylindrical mounting portion 15. After the opening 19 is fitted to the left and right by elastic deformation, the tubular mounting portion 15 is swung so as to face vertically, and the lower side of the loosening portion 20 of the cylindrical mounting portion 15 is fitted. The entire cylindrical mounting portion 15 can be easily externally fixed to the seat post 10.

筒状取付部１５は、泥除け本体１７の前端連結部１６から上方側に突出するように軸方向に長く形成されているので、筒状取付部１５をシートポスト１０に外嵌固着した後は、筒状取付部１５がシートポスト１０に長い範囲できつく外嵌して、後輪用泥除け部材１３が自転車１に対してガタ付くたり不測に外れたりするおそれもなく確実に固定できる。
また、後輪用泥除け部材１３を自転車１から取り外す場合、泥除け本体１７の前端連結部１６を手で把持して、図６に鎖線で示すように筒状取付部１５をその弛緩部２０側を支点に前傾姿勢なるように揺動させることにより、筒状取付部１５の開口部１９を弾性変形により左右に広げながら、シートポスト１０から筒状取付部１５をその下端側から後方に外すことができ、弛緩部２０を利用して筒状取付部１５を前傾姿勢に楽に揺動させることによって、筒状取付部１５をシートポスト１０から簡単に取り外すことができる。 Since the cylindrical mounting portion 15 is formed long in the axial direction so as to protrude upward from the front end coupling portion 16 of the mudguard body 17, after the cylindrical mounting portion 15 is externally fixed to the seat post 10, The tubular mounting portion 15 can be securely fitted to the seat post 10 in a long range, and the rear wheel mudguard member 13 can be reliably fixed to the bicycle 1 without the risk of rattling or unintentional disconnection.
When the rear wheel mudguard member 13 is removed from the bicycle 1, the front end connecting part 16 of the mudguard body 17 is gripped by hand, and the cylindrical mounting part 15 is placed on the side of the loosened part 20 as shown by the chain line in FIG. By swinging the fulcrum so as to be tilted forward, the cylindrical mounting portion 15 is removed from the seat post 10 to the rear side while the opening 19 of the cylindrical mounting portion 15 is expanded left and right by elastic deformation. The cylindrical mounting portion 15 can be easily detached from the seat post 10 by easily swinging the cylindrical mounting portion 15 to the forward tilted posture using the relaxing portion 20.

従って、後輪用泥除け部材１３は、筒状取付部１５の他に、従来のように自転車１のバックホーク等に着脱自在に外嵌固定する左右一対のＣ字形の取付部を設ける必要がなくなり、後輪用泥除け部材１３の全体の構造が簡単になり、後輪用泥除け部材１３の製造が容易でかつ後輪用泥除け部材１３を安上がりに製造できるようになる。また、自転車１に後輪用泥除け部材１３を取り付けたり取り外したりする場合、筒状取付部１５をシートポスト１０に着脱すればよく、従来のように他のＣ字形の取付部をバックホーク等に着脱する必要がなくなり、後輪用泥除け部材１３の取り付け及び取り外しが非常に簡単になる。 Therefore, the rear wheel mudguard member 13 does not need to be provided with a pair of left and right C-shaped attachment portions that are detachably fitted and fixed to the backhawk of the bicycle 1 as in the prior art, in addition to the cylindrical attachment portion 15. The overall structure of the rear wheel mudguard member 13 is simplified, the rear wheel mudguard member 13 can be easily manufactured, and the rear wheel mudguard member 13 can be manufactured inexpensively. In addition, when attaching or removing the rear wheel mudguard member 13 to or from the bicycle 1, the cylindrical attachment portion 15 may be attached to or detached from the seat post 10, and the other C-shaped attachment portion may be used as a backhawk or the like as in the past. It becomes unnecessary to attach and detach, and the attachment and detachment of the rear wheel mudguard member 13 becomes very simple.

また、上記実施の形態では、自転車１のシートポスト１０を、筒状取付部１５を外嵌固定する被取付部としているので、自転車１のシートポスト１０は、自転車１の立てパイプ３その他に比べて自転車の種類に関係なく一定の外径寸法で形成されている場合が多いため、本実施の形態の後輪用泥除け部材１３は自転車の種類に拘わらず、後輪用泥除け部材１３を自転車１のシートポスト１０に確実に装着することができ、汎用性が大である。 Moreover, in the said embodiment, since the seat post 10 of the bicycle 1 is used as the to-be-attached part which externally fixes the cylindrical attachment part 15, the seat post 10 of the bicycle 1 is compared with the standpipe 3 of the bicycle 1, etc. Therefore, the rear wheel mudguard member 13 is the same as the bicycle 1 regardless of the type of bicycle. The seat post 10 can be securely attached, and versatility is great.

図９〜図２１は他の実施形態を示し、後輪用泥除け部材１３は、筒状取付部１５及び泥除け本体１７の他に、図１５〜図２１に示すスペーサ部材２２を具備している。スペーサ部材２２は、合成樹脂等により筒状取付部１５及び泥除け本体１７とは別体に形成され、筒状取付部１５とシートポスト１０との間にスペーサ部材２２を介在して、筒状取付部１５をスペーサ部材２２を介してシートポスト１０に外嵌固定するようにしている。 9 to 21 show other embodiments, and the rear wheel mudguard member 13 includes a spacer member 22 shown in FIGS. 15 to 21 in addition to the cylindrical mounting portion 15 and the mudguard body 17. The spacer member 22 is formed separately from the cylindrical mounting portion 15 and the mudguard main body 17 with synthetic resin or the like, and the spacer member 22 is interposed between the cylindrical mounting portion 15 and the seat post 10 so as to be cylindrically mounted. The portion 15 is externally fixed to the seat post 10 via the spacer member 22.

スペーサ部材２２は筒状取付部１５よりも小径の断面Ｃ字形に形成され、筒状取付部１５がスペーサ部材２２に外嵌可能とされている。スペーサ部材２２の周方向の一端側に筒状取付部１５の開口部１９に対応する開口部２３が設けられ、スペーサ部材２２は、開口部２３からシートポスト１０に着脱自在に外嵌固定するように構成されている。
筒状取付部１５の下端部の後端側に、筒状取付部１５の下端から上方に向けて切り欠いてなる係合凹部２４が設けられている。スペーサ部材２２の下端部に、周方向外方に突出した環状段部２５が設けられ、環状段部２５の後端側に、前記係合凹部２４に下側から係合する係止凸部２６が設けられている。 The spacer member 22 is formed in a C-shaped cross section having a smaller diameter than the cylindrical mounting portion 15, and the cylindrical mounting portion 15 can be fitted onto the spacer member 22. An opening 23 corresponding to the opening 19 of the cylindrical mounting portion 15 is provided on one end side in the circumferential direction of the spacer member 22, and the spacer member 22 is detachably fitted and fixed to the seat post 10 from the opening 23. It is configured.
On the rear end side of the lower end portion of the cylindrical attachment portion 15, an engagement recess 24 is provided that is cut out upward from the lower end of the cylindrical attachment portion 15. An annular step portion 25 protruding outward in the circumferential direction is provided at the lower end portion of the spacer member 22, and a locking projection portion 26 that engages with the engagement recess portion 24 from below on the rear end side of the annular step portion 25. Is provided.

スペーサ部材２２に筒状取付部１５を外嵌させた際に筒状取付部１５をスペーサ部材２２に対して廻り止めする廻り止め機構２７が、筒状取付部１５とスペーサ部材２２との間に設けられている。この廻り止め機構２７は、前記スペーサ部材２２の係止凸部２６と筒状取付部１５の係合凹部２４とにより構成され、スペーサ部材２２に筒状取付部１５を外嵌させた際に、筒状取付部１５の下端縁が環状段部２５に上側から接当乃至近接して受け止められると共に、係合凹部２４に係止凸部２６が下側から係合して筒状取付部１５をスペーサ部材２２に対して廻り止めするように構成されている。その他の点は前記実施形態の場合と同様の構成である。 A detent mechanism 27 that prevents the cylindrical mounting portion 15 from rotating relative to the spacer member 22 when the cylindrical mounting portion 15 is fitted on the spacer member 22 is provided between the cylindrical mounting portion 15 and the spacer member 22. Is provided. This detent mechanism 27 is constituted by the locking convex portion 26 of the spacer member 22 and the engaging concave portion 24 of the cylindrical mounting portion 15, and when the cylindrical mounting portion 15 is externally fitted to the spacer member 22, The lower end edge of the cylindrical mounting portion 15 is received from or close to the annular step portion 25 from the upper side, and the engaging convex portion 26 engages with the engaging concave portion 24 from the lower side to attach the cylindrical mounting portion 15. The spacer member 22 is configured to prevent rotation. Other points are the same as those in the above embodiment.

上記実施の形態によれば、後輪用泥除け部材１３を自転車１に取り付ける場合、シートポスト１０の後側からスペーサ部材２２を、開口部２３を利用してシートポスト１０に外嵌させた後、泥除け本体１７の前端連結部１６を手で把持して、筒状取付部１５をシートポスト１０の後側から、前記図１〜図９の実施形態の場合と同様にスペーサ部材２２の上からシートポスト１０に筒状取付部１５を外嵌させればよく、筒状取付部１５をスペーサ部材２２の上からシートポスト１０に簡単に外嵌固定することができる。また、後輪用泥
除け部材１３を自転車１から取り外す場合、前記図１〜図９の実施の形態の場合と同様に泥除け本体１７の前端連結部１６を手で把持して、シートポスト１０に外嵌したスペーサ部材２２から筒状取付部１５をその下端側から後方に外すことができ、弛緩部２０を利用して筒状取付部１５を前傾姿勢に楽に揺動させることによって、筒状取付部１５をシートポスト１０乃至スペーサ部材２２から簡単に取り外すことができる。 According to the above embodiment, when attaching the rear wheel mudguard member 13 to the bicycle 1, after the spacer member 22 is externally fitted to the seat post 10 from the rear side of the seat post 10 using the opening 23, The front end connecting portion 16 of the mudguard main body 17 is gripped by hand, and the cylindrical mounting portion 15 is seated from the rear side of the seat post 10 from above the spacer member 22 in the same manner as in the embodiment of FIGS. The cylindrical attachment portion 15 may be externally fitted to the post 10, and the cylindrical attachment portion 15 can be easily externally fixed to the seat post 10 from above the spacer member 22. Further, when the rear wheel mudguard member 13 is removed from the bicycle 1, the front end connecting portion 16 of the mudguard main body 17 is gripped by hand as in the embodiment of FIGS. The cylindrical mounting portion 15 can be removed rearward from the lower end side from the fitted spacer member 22, and the cylindrical mounting portion 15 can be easily swung into a forward tilted posture by using the loosening portion 20, thereby mounting the cylindrical mounting portion 15 The portion 15 can be easily detached from the seat post 10 or the spacer member 22.

従って、図１０〜図２１の実施形態の場合、前記図１〜図９の実施形態の場合と同様の作用効果を奏する共に、例えば子供用の自転車の場合のように自転車１のシートポスト１０の外径が小さい場合でも、筒状取付部１５とシートポスト１０との間にスペーサ部材２２を介在することにより、シートポスト１０にスペーサ部材２２を簡単かつ確実に外嵌固定すると共に、スペーサ部材２２に対して筒状取付部１５に簡単かつ確実に外嵌固定して廻り止めすることができ、後輪用泥除け部材１３を自転車１のシートポスト１０に確実に装着することができる。 Accordingly, in the case of the embodiment of FIGS. 10 to 21, the same effect as in the case of the embodiment of FIGS. 1 to 9 is obtained, and for example, the seat post 10 of the bicycle 1 as in the case of a bicycle for children is used. Even when the outer diameter is small, by interposing the spacer member 22 between the cylindrical mounting portion 15 and the seat post 10, the spacer member 22 can be easily and securely fitted and fixed to the seat post 10, and the spacer member 22 On the other hand, it can be easily and securely fitted and fixed to the cylindrical mounting portion 15 to prevent the rotation, and the rear wheel mudguard member 13 can be securely attached to the seat post 10 of the bicycle 1.

なお、前記実施の形態では、自転車１のシートポスト１０を、筒状取付部１５を外嵌固定する被取付部としているが、これに代え、例えば図１に鎖線で示すように、自転車１の立てパイプ３を、筒状取付部１５を外嵌固定する被取付部としてもよいし、また、自転車１の上パイプ２その他を、筒状取付部１５を外嵌固定する被取付部とすることも可能である。 In the above-described embodiment, the seat post 10 of the bicycle 1 is a mounted portion that externally fixes the cylindrical mounting portion 15, but instead of this, for example, as shown by a chain line in FIG. The standing pipe 3 may be a mounted portion for externally fixing and fixing the cylindrical mounting portion 15, and the upper pipe 2 and the like of the bicycle 1 may be a mounted portion for externally fixing and fixing the cylindrical mounting portion 15. Is also possible.

また、前記実施の形態では、筒状取付部１５の端部を筒状取付部１５の軸方向外端に向かうに従って徐々に大きく広がる外広がり状に形成することにより、筒状取付部１５の一端部に、自転車１の被取付部に対して筒状取付部１５の揺動を許容する弛緩部２０を構成しているが、これに代え又はこれと共に、例えば図４に鎖線で示すように、筒状取付部１５の端部に開口部１９に対向するように切欠部２１を設けることにより、筒状取付部１５の一端部に、自転車１の被取付部に対して筒状取付部１５の揺動を許容する弛緩部２０を構成するようにしてもよい。 Moreover, in the said embodiment, the end part of the cylindrical attachment part 15 is formed in the outward spreading shape which spreads gradually and gradually as it goes to the axial direction outer end of the cylindrical attachment part 15, so that one end of the cylindrical attachment part 15 is formed. In the portion, the loosening portion 20 that allows the cylindrical attachment portion 15 to swing relative to the attachment portion of the bicycle 1 is configured, but instead of or together with this, for example, as shown by a chain line in FIG. By providing a notch portion 21 at the end of the cylindrical mounting portion 15 so as to face the opening 19, the cylindrical mounting portion 15 can be attached to one end of the cylindrical mounting portion 15 with respect to the mounted portion of the bicycle 1. You may make it comprise the relaxation part 20 which accept | permits rocking | fluctuation.

また、前記実施の形態では、筒状取付部１５は、泥除け本体１７の前端連結部１６から下方に突出するように軸方向に長く形成されているが、これに代え、筒状取付部１５を、泥除け本体１７の前端連結部１６から上方に突出するように軸方向に長く形成するようにしてもよいし、また、筒状取付部１５を、泥除け本体１７の前端連結部１６から上下両方に突出するように軸方向に長く形成するようにしてもよい。 Moreover, in the said embodiment, although the cylindrical attachment part 15 is formed in the axial direction so that it may protrude below from the front-end connection part 16 of the mudguard main body 17, it replaces with this and the cylindrical attachment part 15 is changed. Further, it may be formed long in the axial direction so as to protrude upward from the front end connecting portion 16 of the mudguard main body 17, and the cylindrical mounting portion 15 may be formed both vertically from the front end connecting portion 16 of the mudguard main body 17. You may make it form in the axial direction so that it may protrude.

また、前記実施の形態では、筒状取付部１５の一端部（上端部）に、自転車１の被取付部に対して筒状取付部１５の前後揺動を許容する弛緩部２０が設けられているが、これに代え、筒状取付部１５の軸方向の両端部（上下両端部）に、自転車１の被取付部に対して筒状取付部１５の揺動を許容する弛緩部２０を設けるようにしてもよい。
また、前記実施の形態では、筒状取付部１５は、周方向の前端側に開口部１９を有する断面Ｃ字形に形成されているが、これに代え、筒状取付部１５を、周方向の側方側又は斜め前方側その他の方向に開口部１９を有する断面Ｃ字形に形成してもよい。 Further, in the above-described embodiment, at one end portion (upper end portion) of the cylindrical mounting portion 15, the relaxing portion 20 that allows the cylindrical mounting portion 15 to swing back and forth with respect to the mounted portion of the bicycle 1 is provided. However, instead of this, at both ends (upper and lower ends) in the axial direction of the cylindrical mounting portion 15, a loosening portion 20 that allows the cylindrical mounting portion 15 to swing relative to the mounted portion of the bicycle 1 is provided. You may do it.
Moreover, in the said embodiment, although the cylindrical attaching part 15 is formed in the cross-sectional C shape which has the opening part 19 in the front end side of the circumferential direction, it replaces with this and the cylindrical attaching part 15 is made into the circumferential direction. You may form in the cross-sectional C shape which has the opening part 19 in a side side or the diagonally forward side other direction.

本発明の一実施形態を示す自転車の後部の側面図である。It is a side view of the rear part of the bicycle which shows one Embodiment of this invention. 同後輪用泥除け部材の側面図である。It is a side view of the mudguard member for the rear wheels. 同後輪用泥除け部材の平面図である。It is a top view of the mudguard member for the rear wheels. 同後輪用泥除け部材の正面図である。It is a front view of the mudguard member for the rear wheels. 同後輪用泥除け部材の背面図である。It is a rear view of the mudguard member for the rear wheels. 同後輪用泥除け部材の側面断面図である。It is side surface sectional drawing of the mudguard member for the rear wheels. 同図２のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 同図２のＢ−Ｂ線断面図である。It is the BB sectional view taken on the line of FIG. 他の実施形態を示す後輪用泥除け部材の側面図である。It is a side view of the mudguard member for rear wheels which shows other embodiment. 同後輪用泥除け部材の平面図である。It is a top view of the mudguard member for the rear wheels. 同筒状取付部の正面図である。It is a front view of the cylindrical attachment part. 同図９のＣ線矢視図である。FIG. 10 is a view on arrow C in FIG. 9. 同後輪用泥除け部材の筒状取付部側の底面図である。It is a bottom view by the side of the cylindrical attachment part of the mudguard member for rear wheels. 同図９のＤ−Ｄ線断面図である。It is the DD sectional view taken on the line of FIG. 同スペーサ部材の正面図である。It is a front view of the spacer member. 同スペーサ部材の平面図である。It is a top view of the spacer member. 同スペーサ部材の底面図である。It is a bottom view of the spacer member. 同スペーサ部材の下部側の背面図である。It is a rear view of the lower side of the spacer member. 同図１８のＥ−Ｅ線断面図である。It is the EE sectional view taken on the line of FIG. 同スペーサ部材に筒状取付部を外嵌した状態の正面断面図である。It is front sectional drawing of the state which fitted the cylindrical attachment part to the spacer member. 同スペーサ部材に筒状取付部を外嵌した状態の平面図である。It is a top view in the state where a cylindrical attachment part was externally fitted to the spacer member.

１自転車
１０シートポスト
１３後輪用泥除け部材
１５筒状取付部
１６前端連結部
１７泥除け本体
１９開口部
２０弛緩部
２１切欠部
２２スペーサ部材
２３開口部
２７廻り止め機構
DESCRIPTION OF SYMBOLS 1 Bicycle 10 Seatpost 13 Mudguard member for rear wheels 15 Cylindrical mounting portion 16 Front end connecting portion 17 Mudguard body 19 Opening portion 20 Relaxing portion 21 Notch portion 22 Spacer member 23 Opening portion 27 Anti-rotation mechanism

Claims

自転車（１）のシートポスト（１０）等の被取付部に固定される筒状取付部（１５）と、筒状取付部（１５）から後方に突出されて自転車（１）の後輪（６）の上方を覆う泥除け本体（１７）とを備え、泥除け本体（１７）は、その前端連結部（１６）により筒状取付部（１５）に連結され、筒状取付部（１５）は、周方向の一端側に開口部（１９）を有する断面Ｃ字形に形成され、筒状取付部（１５）を開口部（１９）から被取付部に外嵌して筒状取付部（１５）を被取付部に着脱自在に外嵌固定するようにした自転車の後輪用泥除け部材において、
筒状取付部（１５）は、泥除け本体（１７）の前端連結部（１６）から上下方向の少なくとも一方側に突出するように軸方向に長く形成され、
泥除け本体（１７）の前端連結部（１６）は、筒状取付部（１５）を揺動操作するために握り易くなるようにその左右幅が筒状取付部（１５）に向けて徐々に小幅になると共に上下幅が筒状取付部（１５）に向けて徐々に小幅になるように先細り状に形成されていることを特徴とする自転車の後輪用泥除け部材。 A cylindrical mounting portion (15) fixed to a mounted portion such as a seat post (10) of the bicycle (1), and a rear wheel (6) protruding rearward from the cylindrical mounting portion (15) (6) The mudguard body (17) is connected to the cylindrical mounting part (15) by the front end connecting part (16), and the cylindrical mounting part (15) Formed in a C-shaped cross section having an opening (19) on one end side in the direction, and the cylindrical mounting portion (15) is externally fitted to the mounted portion from the opening (19) to cover the cylindrical mounting portion (15). In the bicycle rear wheel mudguard member that is detachably fitted and fixed to the mounting portion,
The cylindrical mounting portion (15) is formed long in the axial direction so as to protrude from the front end coupling portion (16) of the mudguard body (17) to at least one side in the vertical direction ,
The front end connecting portion (16) of the mudguard main body (17) is gradually reduced in width toward the cylindrical mounting portion (15) so that the cylindrical mounting portion (15) can be easily gripped to swing. The bicycle rear wheel mudguard member is characterized by being tapered so that the vertical width gradually decreases toward the cylindrical mounting portion (15) .

自転車（１）のシートポスト（１０）等の被取付部に固定される筒状取付部（１５）と、筒状取付部（１５）から後方に突出されて自転車（１）の後輪（６）の上方を覆う泥除け本体（１７）とを備え、泥除け本体（１７）は、その前端連結部（１６）により筒状取付部（１５）に連結され、筒状取付部（１５）は、周方向の一端側に開口部（１９）を有する断面Ｃ字形に形成され、筒状取付部（１５）を開口部（１９）から被取付部に外嵌して筒状取付部（１５）を被取付部に着脱自在に外嵌固定するようにした自転車の後輪用泥除け部材において、
筒状取付部（１５）は、泥除け本体（１７）の前端連結部（１６）から上下方向の少なくとも一方側に突出するように軸方向に長く形成され、
泥除け本体（１７）の前端連結部（１６）は、筒状取付部（１５）の軸方向一端部に対して、該一端部の剛性を高めるべく筒状取付部（１５）の後側の半周に亘って一体に連結されていることを特徴とする自転車の後輪用泥除け部材。 A cylindrical mounting portion (15) fixed to a mounted portion such as a seat post (10) of the bicycle (1), and a rear wheel (6) protruding rearward from the cylindrical mounting portion (15) (6) The mudguard body (17) is connected to the cylindrical mounting part (15) by the front end connecting part (16), and the cylindrical mounting part (15) Formed in a C-shaped cross section having an opening (19) on one end side in the direction, and the cylindrical mounting portion (15) is externally fitted to the mounted portion from the opening (19) to cover the cylindrical mounting portion (15). In the bicycle rear wheel mudguard member that is detachably fitted and fixed to the mounting portion,
The cylindrical mounting portion (15) is formed long in the axial direction so as to protrude from the front end coupling portion (16) of the mudguard body (17) to at least one side in the vertical direction,
The front end connecting portion (16) of the mudguard main body (17) has a half circumference on the rear side of the cylindrical mounting portion (15) with respect to one axial end portion of the cylindrical mounting portion (15) to increase the rigidity of the one end portion. wheel mudguard member after the bicycle characterized in that it is integrally connected to over.

泥除け本体（１７）の前端連結部（１６）は、筒状取付部（１５）の軸方向一端部に対して、該一端部の剛性を高めるべく筒状取付部（１５）の後側の半周に亘って一体に連結
されていることを特徴とする請求項１に記載の自転車の後輪用泥除け部材。 The front end connecting portion (16) of the mudguard main body (17) has a half circumference on the rear side of the cylindrical mounting portion (15) with respect to one axial end portion of the cylindrical mounting portion (15) to increase the rigidity of the one end portion. Connected together
Wheel mudguard member after bicycle according to claim 1, characterized in that it is.

筒状取付部（１５）の少なくとも一端部に、シートポスト（１０）等の被取付部に対して筒状取付部（１５）の揺動を許容する弛緩部（２０）が設けられていることを特徴とする請求項１〜３のいずれかに記載の自転車の後輪用泥除け部材。 At least one end of the cylindrical mounting portion (15) is provided with a loosening portion (20) that allows the cylindrical mounting portion (15) to swing relative to the mounted portion such as the seat post (10). The mudguard member for a rear wheel of a bicycle according to any one of claims 1 to 3 .

前記弛緩部（２０）は、筒状取付部（１５）の端部を筒状取付部（１５）の軸方向外端に向かうに従って徐々に大きく広がる外広がり状に形成してなることを特徴とする請求項４に記載の自転車の後輪用泥除け部材。 The loosening portion (20) is characterized in that the end of the cylindrical mounting portion (15) is formed in an outwardly expanding shape that gradually widens toward the outer end in the axial direction of the cylindrical mounting portion (15). The rear wheel mudguard member according to claim 4 .

前記弛緩部（２０）は、筒状取付部（１５）の端部に開口部（１９）に対向するように切欠部（２３）を設けてなることを特徴とする請求項４に記載の自転車の後輪用泥除け部材。 The bicycle according to claim 4 , wherein the loosening portion (20) is provided with a notch (23) at the end of the cylindrical attachment portion (15) so as to face the opening (19). Mudguard member for rear wheels.

前記筒状取付部（１５）とシートポスト（１０）等の被取付部との間に介在されるスペーサ部材（２２）が具備され、筒状取付部（１５）をスペーサ部材（２２）を介してシートポスト（１０）等の被取付部に外嵌固定するようにしたことを特徴とする請求項１〜６のいずれかに記載の自転車の後輪用泥除け部材。 A spacer member (22) interposed between the cylindrical mounting portion (15) and the mounted portion such as the seat post (10) is provided, and the cylindrical mounting portion (15) is interposed via the spacer member (22). 7. A bicycle rear wheel mudguard member according to any one of claims 1 to 6, characterized in that it is externally fitted and fixed to a mounted portion such as a seat post (10).

筒状取付部（１５）がスペーサ部材（２２）に外嵌可能になるように、スペーサ部材（２２）は筒状取付部（１５）よりも小径の断面Ｃ字形に形成され、スペーサ部材（２２）の周方向の一端側に筒状取付部（１５）の開口部（１９）に対応する開口部（２３）が設けられ、スペーサ部材（２２）は、開口部（２３）から被取付部に外嵌して被取付部に着脱自在に外嵌固定するように構成され、スペーサ部材（２２）に筒状取付部（１５）を外嵌させた際に筒状取付部（１５）をスペーサ部材（２２）に対して廻り止めする廻り止め機構（２７）が、筒状取付部（１５）とスペーサ部材（２２）との間に設けられていることを特徴とする請求項７に記載の自転車の後輪用泥除け部材。 The spacer member (22) is formed in a C-shaped cross section having a smaller diameter than the cylindrical mounting portion (15) so that the cylindrical mounting portion (15) can be fitted onto the spacer member (22). ) Is provided with an opening (23) corresponding to the opening (19) of the cylindrical mounting portion (15), and the spacer member (22) is provided from the opening (23) to the mounted portion. It is configured to be externally fitted and detachably fixed to the attached portion, and when the cylindrical mounting portion (15) is externally fitted to the spacer member (22), the cylindrical mounting portion (15) is attached to the spacer member. The bicycle according to claim 7, characterized in that a non-rotating mechanism (27) for stopping rotation with respect to (22) is provided between the cylindrical mounting portion (15) and the spacer member (22). Mudguard member for rear wheels.