JP2019111957A - Seat pillar adjustment restriction mechanism and bicycle including the same - Google Patents

Seat pillar adjustment restriction mechanism and bicycle including the same Download PDF

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JP2019111957A
JP2019111957A JP2017247485A JP2017247485A JP2019111957A JP 2019111957 A JP2019111957 A JP 2019111957A JP 2017247485 A JP2017247485 A JP 2017247485A JP 2017247485 A JP2017247485 A JP 2017247485A JP 2019111957 A JP2019111957 A JP 2019111957A
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seat post
seat
elastic member
limiting mechanism
adjustment limiting
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俊輔 竹井
Shunsuke Takei
俊輔 竹井
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Bridgestone Cycle Co Ltd
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Abstract

To provide a seat pillar adjustment restriction mechanism that prevents a seat pillar from being fixed with a limit line exceeded, and a bicycle including the mechanism.SOLUTION: A seat pillar adjustment restriction mechanism includes a seat pillar 1 and a frame 20 including a seat tube 2 into which the seat pillar 1 is inserted. A lower end of the seat pillar 1 is provided with a receiving member 3, an elastic member 4, and a pressing member 5, which presses the elastic member 4 against the receiving member 3, in that order. The top of the seat tube 2 includes latching means that latches the elastic member 4.SELECTED DRAWING: Figure 1

Description

本発明は、シートポスト調整制限機構およびこれを備えた自転車に関し、詳しくは、限界線を越えてシートポストを固定することを防止するシートポスト調整制限機構およびこれを備えた自転車に関する。   The present invention relates to a seatpost adjustment limiting mechanism and a bicycle provided with the same, and more particularly, to a seatpost adjustment limiting mechanism that prevents fixing of a seatpost beyond a limit line and a bicycle provided with the same.

近年、シェアバイク（シェアサイクル）の需要が高まってきているが、シェアバイクの使用者が、シートポストの最低限の嵌合長を示す限界線を越えてシートポストを固定して乗車するケースが見受けられる。すなわち、シートポストが、シートポストの端部ぎりぎりでシートチューブに固定されており、このような状態でシェアバイクを使用すると、シートチューブは自転車進行方向後方に傾斜しているため、乗車中にシートポストが抜けてしまい、転倒等の事故につながるおそれがある。このような、状況の中、シートポストの抜け防止につき、種々の提案がなされている。   In recent years, the demand for share bikes (share cycles) has been increasing, but there are cases where users of share bikes get in with the seatpost fixed by riding over the limit line indicating the minimum fitting length of the seatpost. Seen. That is, the seat post is fixed to the seat tube just at the end of the seat post, and when using the share bike in such a state, the seat tube is inclined rearward in the traveling direction of the bicycle, so There is a possibility that the post may be missed, leading to an accident such as a fall. Under such circumstances, various proposals have been made to prevent the seat post from coming off.

例えば、特許文献１では、シートポストの内側下端部に円筒体を設け、かつ、この円筒体に対称なピンを突出可能に設け、円筒体の中央の押付ねじを回転させることにより、立パイプ内にピンを突出させ、シートポストの抜け止めを行う構造が提案されている。また、特許文献２では、所定の形状を有したシートポストの抜け止めに用いるプラグが提案されている。このプラグは、下端部開口内径が縮小されたシートポスト内に無理嵌装が可能な傘型の保持部材と、この保持部材の中心を支持する第１の支柱を固定した台座部と、この台座部の下面に対して垂直方向に取り付けられた一定長さの第２の支柱を介して台座部と並行に取り付けた固定基部と、この固定基部と台座部との間に位置して一端を第２の支柱に対して折り曲げ可能に取り付けたストッパー部材と、台座部下面に取り付けられたところの、ストッパー部材の自由端側を固定基部側へ押圧するバネ部材とからなる。これにより、シートポストの引き抜きを簡易に規制できることによりサドルの盗難を防止することが可能になる。   For example, in Patent Document 1, a cylindrical body is provided at the inner lower end portion of the seat post, and a symmetrical pin is provided so as to be able to project on the cylindrical body, and the pressing screw in the center of the cylindrical body is rotated. A structure is proposed in which the pin is protruded to prevent the seat post from coming off. Patent Document 2 proposes a plug used for retaining a seat post having a predetermined shape. This plug has an umbrella-shaped holding member capable of being force fitted in a seat post whose inner diameter at the lower end opening is reduced, a pedestal portion to which a first support for supporting the center of the holding member is fixed, and the pedestal A fixed base mounted in parallel with the pedestal via a second column of fixed length vertically attached to the lower surface of the housing, and one end of the fixed base located between the stationary base and the pedestal And a spring member for pressing the free end side of the stopper member to the fixed base side attached to the lower surface of the pedestal portion. This makes it possible to prevent theft of the saddle by simply restricting the withdrawal of the seat post.

特開平７−１１７７７１号公報Japanese Patent Application Laid-Open No. 7-117771 特開２０１１−１７８２３９号公報JP, 2011-178239, A

しかしながら、特許文献１で提案されているシートポストの抜け止め構造は、シートポスト内に円筒体を設置し、この円筒体からピンを突出させストッパーとして用いている。そのため、シートチューブとストッパーであるピンとの接触面積が小さく、その結果、シートチューブやピンに高負荷がかかり、ピンが破損したり、シートチューブ内部が損傷したり、という問題が懸念される。また、特許文献２で提案されているシートポストの抜け止め手法は、あらかじめ成形されたプラグを、シートポストに押し込むものなので、一度組み付けてしまうと、メンテナンス時等にシートポストを抜くことができなくなってしまう。また、その構造も複雑であり、故障等のリスクが高いという問題を有している。   However, in the seat post retaining structure proposed in Patent Document 1, a cylindrical body is installed in the seat post, and a pin is protruded from the cylindrical body and used as a stopper. Therefore, the contact area between the sheet tube and the pin which is the stopper is small, and as a result, a high load is applied to the sheet tube and the pin, and there is a concern that the pin may be damaged or the inside of the sheet tube may be damaged. In addition, since the seatpost retaining method proposed in Patent Document 2 presses a pre-formed plug into the seatpost, once assembled, the seatpost can not be removed during maintenance or the like. It will Moreover, the structure is also complicated, and there is a problem that the risk of failure etc. is high.

そこで、本発明の目的は、このような問題を回避しつつ、限界線を越えてシートポストを固定することを防止できるシートポスト調整制限機構およびこれを備えた自転車を提供することにある。   Therefore, an object of the present invention is to provide a seatpost adjustment limiting mechanism that can prevent the seatpost from being fixed beyond the limit while avoiding such a problem, and a bicycle provided with the same.

本発明者は、上記課題を解消するために鋭意検討した結果、下記構成とすることで、上記課題を解消できることを見出し、本発明を完成するに至った。   As a result of intensive studies to solve the above problems, the present inventor has found that the problems can be solved by using the following configuration, and the present invention has been completed.

すなわち、本発明のシートポスト調整制限機構は、シートポストと、該シートポストを挿入するシートチューブを備えたフレームと、を有するシートポスト調整制限機構において、
前記シートポストの下端部に、受部材と、弾性部材と、該弾性部材を前記受部材に押し付ける押付部材と、を順次備えてなり、かつ、
前記シートチューブの上部が、前記弾性部材を掛止する掛止手段を有していることを特徴とするものである。 That is, according to the seatpost adjustment limiting mechanism of the present invention, there is provided a seatpost adjustment limiting mechanism having a seatpost and a frame provided with a seat tube into which the seatpost is inserted.
The lower end portion of the seat post is sequentially provided with a receiving member, an elastic member, and a pressing member for pressing the elastic member against the receiving member, and
The upper portion of the sheet tube is characterized by having a hooking means for hooking the elastic member.

本発明のシートポスト調整制限機構においては、前記掛止手段が、前記シートチューブ上部に設けられた、縮径するテーパー形状であることが好ましい。また、前記弾性部材は、円筒形状であることが好ましい。さらに、本発明のシートポスト調整制限機構においては、前記受部材と前記押付部材とが、螺合により締結されていることが好ましい。   In the seat post adjustment limiting mechanism according to the present invention, preferably, the hooking means has a tapered shape provided at the upper portion of the seat tube and having a diameter reduced. Moreover, it is preferable that the said elastic member is cylindrical shape. Furthermore, in the seat post adjustment limiting mechanism of the present invention, it is preferable that the receiving member and the pressing member are fastened by screwing.

本発明の自転車は、本発明のシートポスト調整制限機構を備えてなることを特徴とするものである。   The bicycle of the present invention is characterized by comprising the seat post adjustment limiting mechanism of the present invention.

本発明によれば、簡易な構造でありながら、限界線を越えてシートポストを固定することを防止するシートポスト調整制限機構およびこれを備えた自転車を提供することができる。本発明のシートポストの調整制限機構は、シートポスト以外に加工の必要がないため、新車のみならず、既存の自転車に好適に適用することができる。また、本発明のシートポストの調整制限機構は、シートポストの下部に設けられた弾性部材が圧縮されて広幅化するものなので、負荷が局所に集中することもなく、従来のようにピンでシートポストの移動を規制した構造と比較して、フレームの損傷が起こりにくく、耐久性の面でも優れている。さらに、本発明のシートポスト調整制限機構は、弾性部材を圧縮するだけの構造であるため、部品点数が少なく、故障のリスクも少ないという利点も有している。さらにまた、本発明のシートポスト調整制限機構は、シートチューブの内部におけるシートポストの構造に特徴があるため、外観を悪化させることはなく、また、いたずら防止にも効果がある。   According to the present invention, it is possible to provide a seatpost adjustment limiting mechanism and a bicycle provided with the same, which has a simple structure and prevents the seatpost from being fixed beyond the limit line. The adjustment limiting mechanism of the seat post according to the present invention can be suitably applied not only to new cars but also to existing bicycles, since there is no need for processing other than the seat post. In addition, since the adjustment limiting mechanism of the seat post of the present invention compresses and widens the elastic member provided at the lower portion of the seat post, the load does not concentrate locally, and the seat is a pin as in the prior art. Compared to the structure in which the movement of the post is restricted, the frame is less likely to be damaged and the durability is also excellent. Furthermore, since the seat post adjustment limiting mechanism of the present invention is a structure that only compresses the elastic member, it has an advantage that the number of parts is small and the risk of failure is also small. Furthermore, the seatpost adjustment limiting mechanism according to the present invention is characterized by the structure of the seatpost inside the seat tube, so that it does not deteriorate the appearance and is also effective in preventing tampering.

本発明の一好適な実施の形態に係るシートポスト調整制限機構を説明するための自転車フレームおよびシートポストの概略側面図である。It is a schematic side view of a bicycle frame and a seatpost for explaining a seat post adjustment limiting mechanism according to a preferred embodiment of the present invention. 本発明の一好適な実施の形態に係るシートポスト調整制限機構を備えたシートポストの分解斜視図である。It is an exploded perspective view of a seat post provided with a seat post adjustment limiting mechanism concerning one preferred embodiment of the present invention. 本発明の一好適な実施の形態に係るシートポスト調整制限機構を備えたシートポスト下部の斜視図である。It is a perspective view of the seat post lower part provided with the seat post adjustment limiting mechanism concerning one preferred embodiment of the present invention. 本発明の一好適な実施の形態に係るシートポスト調整制限機構を備えたシートチューブ上部側の断面図である。It is sectional drawing of the sheet | seat tube upper side provided with the seat post adjustment limiting mechanism which concerns on one preferable embodiment of this invention. 本発明の他の好適な実施の形態に係るシートポスト調整制限機構を備えたシートチューブ上部側の断面図である。It is sectional drawing of the sheet | seat tube upper side provided with the seat post adjustment restriction | limiting mechanism which concerns on the other preferable embodiment of this invention. 本発明の一好適な実施の形態に係るシートポストをフレームに組み付ける際の説明図である。It is explanatory drawing at the time of assembling | attaching the seat post which concerns on one preferable embodiment of this invention to a flame | frame. 本発明の一好適な実施の形態に係るシートポスト調整制限機構の押付部材の斜視図である。It is a perspective view of a pressing member of a seat post adjustment limiting mechanism concerning one preferred embodiment of the present invention.

以下、本発明のシートポスト調整制限機構について、図面を用いて詳細に説明する。
図１は、本発明の一好適な実施の形態に係るシートポスト調整制限機構を説明するための自転車フレームおよびシートポストの概略側面図であり、図２は、本発明の一好適な実施の形態に係るシートポスト調整制限機構を備えたシートポストの分解斜視図であり、図３は、本発明の一好適な実施の形態に係るシートポスト調整制限機構を備えたシートポスト下部の斜視図であり、図４は、本発明の一好適な実施の形態に係るシートポスト調整制限機構を備えたシートチューブ上部側の断面図である。図示するように、本発明のシートポスト調整制限機構は、シートポスト１と、シートポスト１を挿入するシートチューブ２を備えたフレーム２０と、を有している。 Hereinafter, the seat post adjustment limiting mechanism of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic side view of a bicycle frame and a seat post for explaining a seat post adjustment limiting mechanism according to a preferred embodiment of the present invention, and FIG. 2 is a preferred embodiment of the present invention. 3 is an exploded perspective view of the seat post provided with the seat post adjustment limiting mechanism according to the present invention, and FIG. 3 is a perspective view of the lower part of the seat post provided with the seat post adjustment limiting mechanism according to one preferred embodiment of the present invention. FIG. 4 is a cross-sectional view of an upper side of a seat tube provided with a seat post adjustment limiting mechanism according to one preferred embodiment of the present invention. As shown, the seatpost adjustment limiting mechanism of the present invention includes a seatpost 1 and a frame 20 provided with a seat tube 2 into which the seatpost 1 is inserted.

本発明のシートポスト調整制限機構においては、図示するように、シートポスト１の下端部に、受部材３と、弾性部材４と、弾性部材４を受部材３に押し付ける押付部材５と、を順次備えている。ここで、受部材３は、シートポスト１の下端部に接着や溶接等で固定されていてもよく、シートポスト１の下端部の内周にネジ山を設け、受部材３に、このネジ山と対応するネジ溝を設け、これらを螺合することで固定してもよい。また、シートポスト１と受部材３とを一体として成形してもよい。   In the seat post adjustment limiting mechanism of the present invention, the receiving member 3, the elastic member 4, and the pressing member 5 for pressing the elastic member 4 against the receiving member 3 are sequentially provided at the lower end of the seat post 1, as shown. Have. Here, the receiving member 3 may be fixed to the lower end portion of the seat post 1 by adhesion, welding or the like, and a screw thread is provided on the inner periphery of the lower end portion of the seat post 1. And the corresponding screw groove may be provided and fixed by screwing them. Further, the seat post 1 and the receiving member 3 may be integrally formed.

このような構成であるため、シートポスト１をシートチューブ２に挿入した後、押付部材５で弾性部材４を押し付ければ、図３に示すように、弾性部材４が圧縮されて、弾性部材４が広幅化することになる。そして、弾性部材４がシートポスト１の内径よりも太くなれば、弾性部材４とシートチューブ２の内部が干渉することになり、シートポスト１の移動を規制することができる。そこで、本発明のシートポスト調整制限機構においては、シートチューブ２に、広幅化した弾性部材４を掛止する掛止手段を設けている。図示例においては、掛止手段として、シートチューブ２の上部に、縮径するテーパー形状のテーパー部２ａを設け（図４参照）、広幅化した弾性部材４の径を、テーパー部２ａの内径以上であって、シートチューブ２の本体部２ｂの内径未満となるように、押付部材５で弾性部材４を圧縮することで、通常の範囲でのシートポスト１の高さ調整を可能としつつ、限界線を越えるような位置にシートポスト１を移動させることを規制することができる。   With such a configuration, when the elastic member 4 is pressed by the pressing member 5 after inserting the seat post 1 into the sheet tube 2, the elastic member 4 is compressed as shown in FIG. Will be broadened. When the elastic member 4 is thicker than the inner diameter of the seat post 1, the elastic member 4 and the inside of the seat tube 2 interfere with each other, and the movement of the seat post 1 can be restricted. Therefore, in the seat post adjustment limiting mechanism of the present invention, the seat tube 2 is provided with a hooking means for hooking the wide elastic member 4. In the illustrated example, a tapered portion 2a with a reduced diameter is provided on the top of the sheet tube 2 as a hooking means (see FIG. 4), and the diameter of the widened elastic member 4 is equal to or larger than the inner diameter of the tapered portion 2a. And by compressing the elastic member 4 with the pressing member 5 so as to be smaller than the inner diameter of the main body 2b of the sheet tube 2, it is possible to adjust the height of the seat post 1 within a normal range, The movement of the seat post 1 to a position beyond the line can be restricted.

なお、図示例においては、掛止手段として、シートチューブ２の上部にテーパー形状のテーパー部２ａを設けた例について説明したが、本発明のシートポスト調整制限機構においては、掛止手段はテーパー部２ａに限るものではない。例えば、図５は、本発明の他の好適な実施の形態に係るシートポスト調整制限機構を備えたシートチューブ上部側の断面図であり、図５に示すように、シートチューブ２の上部に限界線に該当する長さＬのスリーブ２ｃを挿入して固定することで、スリーブの内径ｗよりも広幅化した弾性部材４の移動を規制する構造であってもよい。   In the illustrated example, an example in which the tapered portion 2a is provided on the upper portion of the sheet tube 2 as the hooking means has been described, but in the seat post adjustment limiting mechanism of the present invention, the hooking means is the tapered portion It is not limited to 2a. For example, FIG. 5 is a cross-sectional view of the upper portion of the seat tube provided with the seat post adjustment limiting mechanism according to another preferred embodiment of the present invention, and as shown in FIG. The movement of the elastic member 4 wider than the inner diameter w of the sleeve may be restricted by inserting and fixing the sleeve 2c of the length L corresponding to the line.

本発明のシートポスト調整制限機構においては、受部材３、弾性部材４および押付部材５の形状および材質については、これらを、シートポスト１の下端部に装着した状態であって、押付部材５で弾性部材４を圧縮する前に、シートチューブ２に挿入可能な形状であれば、特に制限はない。すなわち、シートポスト１、受部材３、弾性部材４および押付部材５のうち、シートポスト１の径が最太であればよい。   In the seat post adjustment limiting mechanism of the present invention, the shapes and materials of the receiving member 3, the elastic member 4 and the pressing member 5 are such that they are attached to the lower end portion of the seat post 1. There is no particular limitation as long as it can be inserted into the sheet tube 2 before the elastic member 4 is compressed. That is, of the seat post 1, the receiving member 3, the elastic member 4 and the pressing member 5, the diameter of the seat post 1 may be the largest diameter.

図示する一好適な実施の形態においては、受部材３は、円筒形状であり、その中心にネジ溝を有する貫通孔３ａが設けられている。また、押付部材５も円筒形状であり、押付部材５の先端部５ａには、受部材３の貫通孔３ａに設けられたネジ溝と対応するネジ山が設けられている。さらに、弾性部材４も円筒形状であり、この弾性部材４の中心に、押付部材５の先端部５ａが貫通可能な貫通孔４ａが設けられている。そして、受部材３と押付部材５とを、弾性部材４を介して螺合することで、押付部材５が弾性部材４を押し付ける構造となっている。   In a preferred embodiment shown, the receiving member 3 is cylindrical and is provided with a through hole 3a having a screw groove at its center. The pressing member 5 also has a cylindrical shape, and a distal end portion 5 a of the pressing member 5 is provided with a thread corresponding to a screw groove provided in the through hole 3 a of the receiving member 3. Furthermore, the elastic member 4 also has a cylindrical shape, and a through hole 4 a through which the tip 5 a of the pressing member 5 can penetrate is provided at the center of the elastic member 4. Then, by screwing the receiving member 3 and the pressing member 5 via the elastic member 4, the pressing member 5 presses the elastic member 4.

なお、本発明のシートポスト調整制限機構においては、押付部材が弾性部材を圧縮することができるのであれば、必ずしもこのような構造に制限されるものではないが、弾性部材４の圧縮程度を調整しやすいため、弾性部材４の押し付けを、受部材３と押付部材５との螺合により行う構造が好ましい。また、弾性部材４は、図１〜３に示すように、円筒形状が好ましい。弾性部材４が円筒形状であれば、押付部材５で圧縮された際に、弾性部材４が均等に広幅化することになる。その結果、弾性部材４に加わる負荷が均等化されるため、耐久性に優れたものとなる。   In the seat post adjustment limiting mechanism of the present invention, if the pressing member can compress the elastic member, it is not necessarily limited to such a structure, but the degree of compression of the elastic member 4 is adjusted. It is preferable that the elastic member 4 be pressed by screwing the receiving member 3 and the pressing member 5 because the elastic member 4 is easily pressed. Further, as shown in FIGS. 1 to 3, the elastic member 4 preferably has a cylindrical shape. When the elastic member 4 has a cylindrical shape, when compressed by the pressing member 5, the elastic member 4 is uniformly widened. As a result, since the load applied to the elastic member 4 is equalized, the durability is excellent.

本発明のシートポスト調整制限機構においては、弾性部材４は、押付部材５で押し付けることにより、圧縮されてシートポスト１の外径より太径となるものであれば、その材質には特に制限はなく、例えば、ゴムや樹脂等を用いることができる。従来のように、ピンでシートポストの移動を規制した場合と比較して、弾性部材４として、例えばゴムを用いてシートポスト１の移動を規制する場合、ピンよりもゴムの方がシートチューブ２との接触面が大きくなるため、シートチューブの破損を抑制することができる。なお、弾性部材４としてゴムを用いたとしても、弾性部材４はシートチューブ２内に配置されるため、光等の外部因子に起因するゴムの劣化も、ほとんど生じることはない。   In the seat post adjustment limiting mechanism of the present invention, the material is not particularly limited as long as the elastic member 4 is compressed by pressing with the pressing member 5 and becomes larger than the outer diameter of the seat post 1. For example, rubber, resin, etc. can be used. In the case where the movement of the seat post 1 is restricted using, for example, rubber as the elastic member 4 as compared with the case where the movement of the seat post is restricted by the pin as in the prior art, the rubber is more sheet tube 2 than the pin. Since the contact surface with this increases, damage to the sheet tube can be suppressed. Even if rubber is used as the elastic member 4, since the elastic member 4 is disposed in the sheet tube 2, deterioration of the rubber due to external factors such as light hardly occurs.

図６は、本発明の一好適な実施の形態に係るシートポストをフレームに組み付ける際の説明図であり、図７は、本発明の一好適な実施の形態に係るシートポスト調整制限機構の押付部材の斜視図である。本発明のシートポスト調整制限機構に係るシートポスト１は、その下端部に、受部材３、弾性部材４および押付部材５を、弾性部材４が変形しない程度に仮締めした状態とし、この状態でシートポスト１をシートチューブ２に挿入し、その後、図６に示すように、シートポスト１の上端の開口部１ａから、押付部材５の中心部に設けられた締付孔５ｂ（図７参照）に対応する嵌合形状を有する工具６を用いて、押付部材５を締め付けることで、シートチューブ２に取り付けることができる。なお、押付部材５を締めつけた後に、工具６を抜き取り、シートポスト１の上端にサドルを装着すれば、自転車として使用可能になる。また、工具６を用いて押付部材５を緩めることで、弾性部材４が、圧縮前の状態に戻るため、シートポスト１をシートチューブ２から取り外すことができる。   FIG. 6 is an explanatory view when the seat post according to one preferred embodiment of the present invention is assembled to the frame, and FIG. 7 is a pressing of the seat post adjustment limiting mechanism according to one preferred embodiment of the present invention. It is a perspective view of a member. In the seat post 1 according to the seat post adjustment limiting mechanism of the present invention, the receiving member 3, the elastic member 4 and the pressing member 5 are temporarily tightened to the lower end thereof to such an extent that the elastic member 4 is not deformed. The seat post 1 is inserted into the seat tube 2, and thereafter, as shown in FIG. 6, the fastening hole 5 b provided at the center of the pressing member 5 from the opening 1 a at the upper end of the seat post 1 (see FIG. 7) The press member 5 can be attached to the sheet tube 2 by tightening the pressing member 5 using a tool 6 having a fitting shape corresponding to. When the pressing member 5 is tightened, the tool 6 is removed and the saddle is attached to the upper end of the seat post 1 so that it can be used as a bicycle. Further, by loosening the pressing member 5 using the tool 6, the elastic member 4 returns to the state before compression, so that the seat post 1 can be removed from the sheet tube 2.

本発明のシートポスト調整制限機構は、シートポスト１と、シートポスト１を挿入するシートチューブ２を備えたフレーム２０と、を有し、シートポスト１の下端部に、受部材３と、弾性部材４と、弾性部材４を受部材３に押し付ける押付部材５と、を順次備えてなり、かつ、シートチューブ１の上部に、弾性部材４を掛止する掛止手段を有していることのみが重要であり、これ以外の構成については特に制限はない。例えば、受部材３や押付部材５等の材質等については、強度等を考慮して適宜選択することができる。本発明のシートポストの調整制限機構は、フレーム２０への加工を要せず、シートポスト１の下端部を改造するだけでよいため、新車のみならず、既存の自転車にも適用することができる。   The seatpost adjustment limiting mechanism according to the present invention includes a seatpost 1 and a frame 20 provided with a seat tube 2 into which the seatpost 1 is inserted. The lower end of the seatpost 1 receives a receiving member 3 and an elastic member. 4 and a pressing member 5 for pressing the elastic member 4 against the receiving member 3 sequentially, and only having a hooking means for hooking the elastic member 4 on the upper part of the sheet tube 1 It is important, and there are no particular restrictions on the other configurations. For example, the material and the like of the receiving member 3 and the pressing member 5 can be appropriately selected in consideration of the strength and the like. The adjustment limiting mechanism of the seat post according to the present invention can be applied not only to new cars but also to existing bicycles, since it is only necessary to modify the lower end portion of the seat post 1 without processing the frame 20. .

次に、本発明の自転車について説明する。本発明の自転車は、本発明のシートポスト調整制限機構を備えたものであり、これ以外の構成については、特に制限はない。例えば、本発明の自転車の一好適な実施の形態としては、図１に示すフレームを有する自転車が挙げられ、図示する例においては、シートチューブ２でシートポスト１を介してサドルを、ヘッドチューブ７でハンドルを支持し、シートチューブ２の下部とヘッドチューブ７の下部から延びるダウンチューブ８とが、ボトムブラケットシェル９を介して接続されている。また、シートステー１０およびチェーンステー１１は、それぞれ自転車後輪の装着位置に向かって延び、後輪車軸を固定するリアエンド１２を介して接続すればよい。さらに、ヘッドチューブ７から前方斜め下向きに延びるフロントフォークを設け、このフロントフォークの下端部に、前輪を回転自在に装着すればよい。本発明の自転車は、その用途に特に制限はないが、サドルの高さ調整が頻繁におこなわれる、シェアバイクに好適に採用することができる。   Next, the bicycle of the present invention will be described. The bicycle of the present invention is provided with the seat post adjustment limiting mechanism of the present invention, and the configuration other than this is not particularly limited. For example, one preferred embodiment of the bicycle according to the present invention includes a bicycle having a frame shown in FIG. 1, and in the illustrated example, a seat tube 2 with a seat post 1 and a head tube 7 The lower portion of the seat tube 2 and the down tube 8 extending from the lower portion of the head tube 7 are connected via the bottom bracket shell 9 to support the handle. Further, the seat stay 10 and the chain stay 11 may be connected to each other via the rear end 12 that extends toward the mounting position of the bicycle rear wheel and fixes the rear wheel axle. Furthermore, a front fork may be provided which extends forward and obliquely downward from the head tube 7, and the front wheel may be rotatably attached to the lower end of the front fork. The bicycle of the present invention is not particularly limited in its application, but can be suitably adopted for a share bike in which the height adjustment of the saddle is frequently performed.

１ シートポスト
１ａ 開口部
２ シートチューブ
２ａ テーパー部
２ｂ 本体部
２ｃ スリーブ
３ 受部材
３ａ 貫通孔
４ 弾性部材
４ａ 貫通孔
５ 押付部材
５ａ 先端部
５ｂ 締付孔
６ 工具
７ ヘッドチューブ
８ ダウンチューブ
９ ボトムブラケットシェル
１０ シートステー
１１ チェーンステー
１２ リアエンド
２０ フレーム Reference Signs List 1 seat post 1a opening 2 seat tube 2a taper 2b main body 2c sleeve 3 receiving member 3a through hole 4 elastic member 4a through hole 5 pressing member 5a tip 5b tightening hole 6 tool 7 head tube 8 down tube 9 bottom bracket shell 10 seat stay 11 chain stay 12 rear end 20 frame

Claims (5)

シートポストと、該シートポストを挿入するシートチューブを備えたフレームと、を有するシートポスト調整制限機構において、
前記シートポストの下端部に、受部材と、弾性部材と、該弾性部材を前記受部材に押し付ける押付部材と、を順次備えてなり、かつ、
前記シートチューブの上部が、前記弾性部材を掛止する掛止手段を有していることを特徴とするシートポスト調整制限機構。 In a seatpost adjustment limiting mechanism having a seatpost and a frame provided with a seat tube into which the seatpost is inserted,
The lower end portion of the seat post is sequentially provided with a receiving member, an elastic member, and a pressing member for pressing the elastic member against the receiving member, and
A seat post adjustment limiting mechanism according to claim 1, wherein an upper portion of said seat tube has a hooking means for hooking said elastic member. 前記掛止手段が、前記シートチューブ上部に設けられた、縮径するテーパー形状である請求項１に記載のシートポスト調整制限機構。   The seat post adjustment limiting mechanism according to claim 1, wherein the hooking means is a tapered shape with a diameter reduction provided at an upper portion of the sheet tube. 前記弾性部材が、円筒形状である請求項１または２記載のシートポスト調整制限機構。   The seat post adjustment limiting mechanism according to claim 1, wherein the elastic member has a cylindrical shape. 前記受部材と前記押付部材とが、螺合により締結されている請求項１〜３のうちいずれか一項記載のシートポスト調整制限機構。   The seat post adjustment limiting mechanism according to any one of claims 1 to 3, wherein the receiving member and the pressing member are screwed together. 請求項１〜４のうちいずれか一項記載のシートポスト調整制限機構を備えてなることを特徴とする自転車。
A bicycle comprising the seat post adjustment limiting mechanism according to any one of claims 1 to 4.
JP2017247485A 2017-12-25 2017-12-25 Seat pillar adjustment restriction mechanism and bicycle including the same Pending JP2019111957A (en)

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JPH0211785U (en) * 1988-07-07 1990-01-25
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CN206494033U (en) * 2017-01-09 2017-09-15 无锡岚凌卓维动力科技有限公司 A kind of bicycle use double hose liftable rotation stop seatpillar
CN206679127U (en) * 2017-05-04 2017-11-28 青岛必盛自动门工程有限公司 A kind of anti-theft device for bicycle saddle

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0211785U (en) * 1988-07-07 1990-01-25
JPH07117771A (en) * 1993-10-22 1995-05-09 Matsushita Electric Ind Co Ltd Saddle installing device for bicycle
US5618052A (en) * 1995-06-15 1997-04-08 Rendall; Barry A. Bicycle attachment
CN101171168A (en) * 2005-05-04 2008-04-30 洛克塞格尔国际公司 Saddle post supporting device
JP3137453U (en) * 2007-09-14 2007-11-22 天津富士達自行車有限公司 Bicycle saddle anti-theft device
CN201457542U (en) * 2009-05-22 2010-05-12 刘沛全 Seat post retainer with multiple expansion blocks
JP2011178239A (en) * 2010-02-26 2011-09-15 Miyata Ind Co Ltd Seat post disengagement prevention plug
CN103303402A (en) * 2013-07-08 2013-09-18 天津富士达自行车有限公司 Bike saddle tube assembly with anti-theft structure
CN203567851U (en) * 2013-11-21 2014-04-30 西安东方信远电动车有限公司 Bicycle vertical pipe anti-theft device
CN206494033U (en) * 2017-01-09 2017-09-15 无锡岚凌卓维动力科技有限公司 A kind of bicycle use double hose liftable rotation stop seatpillar
CN206679127U (en) * 2017-05-04 2017-11-28 青岛必盛自动门工程有限公司 A kind of anti-theft device for bicycle saddle

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