JPS6237835Y2 - - Google Patents
Info
- Publication number
- JPS6237835Y2 JPS6237835Y2 JP1982005757U JP575782U JPS6237835Y2 JP S6237835 Y2 JPS6237835 Y2 JP S6237835Y2 JP 1982005757 U JP1982005757 U JP 1982005757U JP 575782 U JP575782 U JP 575782U JP S6237835 Y2 JPS6237835 Y2 JP S6237835Y2
- Authority
- JP
- Japan
- Prior art keywords
- handle
- piece
- hole
- bolt
- circular hole
- 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
Links
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000001788 irregular Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- JGPMMRGNQUBGND-UHFFFAOYSA-N idebenone Chemical compound COC1=C(OC)C(=O)C(CCCCCCCCCCO)=C(C)C1=O JGPMMRGNQUBGND-UHFFFAOYSA-N 0.000 description 1
- 229960004135 idebenone Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K21/00—Steering devices
- B62K21/12—Handlebars; Handlebar stems
- B62K21/14—Handlebars; Handlebar stems having resilient parts therein
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
Description
【考案の詳細な説明】
この考案は、自転車フレームのフオークチユー
ブにハンドルを取付けるためのハンドルステムの
改良に関し、特に競技用自転車に使用される異形
断面部分を有するハンドルを取付けるために便利
な自転車用ハンドルステムを提供せんとするもの
である。[Detailed description of the invention] This invention relates to the improvement of a handlebar stem for attaching a handlebar to the fork tube of a bicycle frame, and is particularly useful for bicycles for attaching a handlebar having an irregular cross-section used for competition bicycles. It is intended to provide a handle stem.
競技用自転車、特にトラツクのスプリント競技
に使用する自転車には、少しでも空気抵抗を小さ
くする工夫がなされており、このため、ハンドル
の形状を第1〜2図に示すようにすることが行な
われている。即ち、走行中に風を強く受ける部分
1の断面を第2図に示すように達磨形としたり、
或は楕円形とするものである。ハンドル中央部の
ハンドルステムへの取付部2は通常のハンドルと
同様に断面円形に形成されている。ところが、こ
のような異形断面の部分1を有するハンドルは、
異形断面の部分1の長径が、取付部2の外形より
も大きくなるため、従来のようにハンドルを端部
から挿入する形式のハンドルステムにはこの異形
断面の部分1がつかえてハンドルを挿入すること
ができず、取付けられなくなつてしまう。 Competition bicycles, especially those used for track sprint competitions, are designed to reduce air resistance as much as possible, and for this reason, the handlebars are shaped as shown in Figures 1 and 2. ing. That is, the cross section of the portion 1 that is exposed to strong winds while driving is made into a Daruma shape as shown in FIG.
Or it may be oval. The attachment part 2 to the handle stem at the center of the handle is formed to have a circular cross section like a normal handle. However, the handle having the portion 1 with such an irregular cross section,
Since the long axis of the portion 1 with the irregular cross section is larger than the outer diameter of the attachment portion 2, the handle stem is inserted from the end with the portion 1 of the irregular cross section holding the handle in the conventional handle stem. It becomes impossible to install it.
このため、従来はこのような異形断面の部分1
を有するハンドルを取付けるためのハンドルステ
ムは、第3図に示すように、ハンドル取付部3の
一部を分離できる抑え片5とし、この抑え片5を
外した状態でハンドルを装着し、その後抑え片5
をボルト6,6でステム本体4に対して緊締する
ことにより、ハンドルをハンドルステムに固定し
ていた。ところが、このようにハンドル取付部を
2分割したハンドルステムは製作が面倒であるだ
けでなく、ハンドルに加わる捻れ等の応力をボル
ト6,6で部分的に支えることになるため、強度
的にも弱くなる欠点がある。 For this reason, in the past, part 1 of such an irregular cross section
As shown in Fig. 3, the handle stem for attaching a handle has a holding piece 5 that can separate a part of the handle attachment part 3, and the handle is attached with this holding piece 5 removed, and then the holding piece is removed. Piece 5
The handle was fixed to the handle stem by tightening the handle to the stem body 4 with bolts 6, 6. However, a handle stem in which the handle attachment part is divided into two parts is not only cumbersome to manufacture, but also has poor strength because the bolts 6, 6 partially support stress such as twisting applied to the handle. It has the disadvantage of being weak.
本考案は上述のような欠点のないハンドルステ
ムを提供せんとするものである。 The present invention aims to provide a handle stem that does not have the above-mentioned drawbacks.
以下、実施例を示す図面により本考案を説明す
る。 Hereinafter, the present invention will be explained with reference to drawings showing embodiments.
第4図は本考案のハンドルステムのハンドル取
付部を分割した状態を示している。ステム本体4
の突出腕7の先端部に設けたハンドル取付部3に
は、横方向に貫通する断面が達磨形の取付孔8が
設けられている。この取付孔8は、ハンドルの取
付部2(第1図)をがたつきなく内嵌できる内径
を有する円孔部8aに断面U字形の切欠部8bを
連続して形成したものである。この切欠部8bに
は、ボルト9の杆部9aを挿通できる小径部10
aと、ボルト9の頭部9bを内嵌できる大径部1
0bとからなる円孔10を穿設した座金片11
と、このボルト9を螺合させるねじ孔12を有す
るナツト片13と、ボルト9の杆部9aを貫通さ
せる貫通孔14を有し、座金片11とナツト片1
3とに挾持される弾性ゴム片15とが挿入され
る。座金片11とナツト片13と弾性ゴム片15
とは、外形を切欠部8bにがたつきなく内嵌でき
る形状とし、1側面はそれぞれ取付孔8の円孔部
8aの内周面と一致する半径の円弧面11a,1
3a,15aとしている。 FIG. 4 shows a state in which the handle attachment portion of the handle stem of the present invention is divided. Stem body 4
The handle attachment portion 3 provided at the tip of the protruding arm 7 is provided with an attachment hole 8 having a Daruma-shaped cross section and passing through it in the lateral direction. The mounting hole 8 is a circular hole 8a having an inner diameter into which the handle mounting portion 2 (FIG. 1) can be fitted without rattling, and a notch 8b having a U-shaped cross section is continuously formed. This notch 8b has a small diameter portion 10 through which the rod portion 9a of the bolt 9 can be inserted.
a, and a large diameter portion 1 into which the head 9b of the bolt 9 can be fitted.
A washer piece 11 with a circular hole 10 made of 0b
, a nut piece 13 having a screw hole 12 into which the bolt 9 is screwed, and a through hole 14 through which the rod portion 9a of the bolt 9 passes, and the washer piece 11 and the nut piece 1
3 and an elastic rubber piece 15 held between the two are inserted. Washer piece 11, nut piece 13, and elastic rubber piece 15
This means that the outer shape is such that it can be fitted into the notch 8b without wobbling, and one side is a circular arc surface 11a, 1 with a radius that matches the inner peripheral surface of the circular hole 8a of the mounting hole 8.
3a and 15a.
次に、上述のように構成される本考案のハンド
ルステムにハンドルを固定する手順について説明
する。 Next, a procedure for fixing the handle to the handle stem of the present invention configured as described above will be explained.
ハンドルを取付けるには、まずハンドルを端部
から取付孔8内に挿入し、ハンドル中央の取付部
2を取付孔8の円孔部8a内に位置させる。この
作業を行なう際、座金片11、ナツト片13、弾
性ゴム片15及びボルト9は取付孔8の外に出し
ておく。このため、ハンドルの一部に、第2図に
示すように断面が達磨形の部分や、第5図に示す
ように楕円形の部分であつても、取付孔8の断面
一杯に使用できるため、ハンドルを端部から自由
に挿入することができる。ハンドルの取付部2を
円孔部8a内に位置させたならば、まず座金片1
1とナツト片13とにより弾性ゴム片15を挾ん
だ状態となるように、この3片11,13,15
を切欠部8b内に挿入する。次いで、座金片11
の円孔10、弾性ゴム片15の貫通孔14を貫通
したボルトの杆部9aの先端部をナツト片13の
ねじ孔12に螺合させ、このボルト9を緊締す
る。このボルト9の緊締により座金片11とナツ
ト片13との間隔が狭められ、両片11,13の
間の弾性ゴム片15が圧縮され変形する。この状
態で、弾性ゴム片15は取付孔8の円孔部8aに
向けて膨出しようとするため、ハンドルの取付部
2の外周面がこの弾性ゴム片15によつて押圧さ
れる。このため、ボルト9を強く緊締すればハン
ドルをハンドルステムのハンドル取付部3に固定
することができる。ハンドルを取外す場合には、
上記の順序と逆に、ボルト9を抜き出して座金片
11、ナツト片13、弾性ゴム片15を切欠部8
bから抜き出した後、ハンドルを取付孔8から抜
き出せば良い。 To attach the handle, first insert the handle into the attachment hole 8 from the end, and position the attachment part 2 at the center of the handle in the circular hole part 8a of the attachment hole 8. When performing this work, the washer piece 11, nut piece 13, elastic rubber piece 15, and bolt 9 are kept out of the mounting hole 8. Therefore, even if a part of the handle has a Daruma-shaped cross section as shown in Fig. 2 or an oval part as shown in Fig. 5, it can be used to fill the entire cross section of the mounting hole 8. , the handle can be inserted freely from the end. Once the handle attachment part 2 is located inside the circular hole part 8a, first remove the washer piece 1.
1 and the nut piece 13 so that the elastic rubber piece 15 is sandwiched between the three pieces 11, 13, 15.
into the notch 8b. Next, the washer piece 11
The tip of the rod portion 9a of the bolt, which has passed through the circular hole 10 and the through hole 14 of the elastic rubber piece 15, is screwed into the threaded hole 12 of the nut piece 13, and the bolt 9 is tightened. By tightening the bolt 9, the distance between the washer piece 11 and the nut piece 13 is narrowed, and the elastic rubber piece 15 between the two pieces 11 and 13 is compressed and deformed. In this state, the elastic rubber piece 15 tends to bulge toward the circular hole 8a of the attachment hole 8, so that the outer circumferential surface of the attachment part 2 of the handle is pressed by the elastic rubber piece 15. Therefore, by strongly tightening the bolt 9, the handle can be fixed to the handle attachment portion 3 of the handle stem. When removing the handle,
In the reverse order of the above, pull out the bolt 9 and attach the washer piece 11, nut piece 13, and elastic rubber piece 15 to the notch 8.
After pulling it out from b, the handle can be pulled out from the mounting hole 8.
なお、上述の実施例に於いては、ハンドルの取
付部2の外面を直接弾性ゴム片15により押圧す
るように構成した例を示したが、第8図に示すよ
うに取付孔8の切欠部8b内に挿入される3個の
片11,13,15と円孔部8a内に挿入される
ハンドルの取付部2との間に、円弧状に彎曲した
押圧板16を設け、この押圧板16を介してハン
ドルの取付部2を押圧するようにしても良い。こ
の押圧板16の内側面16aには、取付部2の外
周面に形成された溝に噛合する溝を形成する。こ
のように装着された押圧板16の上下両端縁は切
欠部8bの端縁に当接しているため、ハンドル固
定時にこの押圧板16が動くことはなく、ハンド
ルが捻れ方向に動くことを完全に阻止できる。 In the above-mentioned embodiment, an example was shown in which the outer surface of the attachment part 2 of the handle was directly pressed by the elastic rubber piece 15, but as shown in FIG. A pressing plate 16 curved in an arc is provided between the three pieces 11, 13, 15 inserted into the hole 8b and the handle attachment part 2 inserted into the circular hole 8a. The attachment portion 2 of the handle may be pressed through the handle. The inner surface 16a of the pressing plate 16 is formed with a groove that engages with a groove formed on the outer circumferential surface of the mounting portion 2. Since the upper and lower edges of the press plate 16 mounted in this manner are in contact with the edges of the notch 8b, the press plate 16 does not move when the handle is fixed, and completely prevents the handle from moving in the twisting direction. It can be prevented.
本考案の自転車用ハンドルステムは以上のよう
に構成され使用されるので、異形断面部分を有す
るハンドルを装着するためのハンドルステムとし
て、ハンドル取付部を2分割する従来のものに比
べて次のような利点がある。 The bicycle handlebar stem of the present invention is constructed and used as described above, and therefore, it can be used as a handlebar stem for attaching a handlebar having an irregular cross section, as compared to the conventional handlebar stem in which the handlebar mounting part is divided into two parts. There are advantages.
1 従来のように分割した部品同士を正確に作る
手間が省け、製作が容易である。なお、切欠部
8b内に挿入する座金片11、ナツト片13、
弾性ゴム片15を造ることは第3図に示したよ
うな従来のハンドルステムを製作するのに比し
て容易である。1. It is easy to manufacture as it eliminates the trouble of accurately manufacturing divided parts as in the past. Note that the washer piece 11, the nut piece 13, which is inserted into the notch 8b,
Making the elastic rubber piece 15 is easier than making a conventional handle stem as shown in FIG.
2 ハンドル取付部3が一体となり、ハンドル固
定用のボルト等にはハンドルの捻れ等による応
力が加わらないため強度上の不安がない。2. The handle attachment part 3 is integrated, and there is no need to worry about the strength of the handle, as no stress is applied to the bolts, etc. for fixing the handle due to twisting of the handle.
第1図は異形断面を有するハンドルの1例を示
す平面図、第2図は第1図の拡大A−A断面図、
第3図は従来のハンドルステムの1例を示す側面
図、第4図以下は本考案の実施例を示しており、
第4図はハンドル取付部の分解斜視図、第5図は
ハンドル挿入時の状態を示す側面図、第6図は組
立てた状態を示す斜視図、第7図は第6図のB−
B断面図、第8図は別の実施例を示すハンドル取
付部の側面図である。
1:部分、2:取付部、3:ハンドル取付部、
4:ステム本体、5:抑え片、6:ボルト、7:
突出腕、8:取付孔、8a:円孔部、8b:切欠
部、9:ボルト、9a:杆部、9b:頭部、1
0:円孔、10a:小径部、10b:大径部、1
1:座金片、11a:円弧面、12:ねじ孔、1
3:ナツト片、13a:円弧面、14:貫通孔、
15:弾性ゴム片、15a:円弧面、16:押圧
板、16a:内側面。
Fig. 1 is a plan view showing an example of a handle having an irregular cross section, Fig. 2 is an enlarged cross-sectional view taken along line A-A in Fig. 1,
Fig. 3 is a side view showing an example of a conventional handle stem, and Fig. 4 and subsequent figures show examples of the present invention.
Fig. 4 is an exploded perspective view of the handle attachment part, Fig. 5 is a side view showing the state when the handle is inserted, Fig. 6 is a perspective view showing the assembled state, and Fig. 7 is B--B in Fig. 6.
B sectional view and FIG. 8 are side views of the handle attachment part showing another embodiment. 1: Part, 2: Mounting part, 3: Handle mounting part,
4: Stem body, 5: Holding piece, 6: Bolt, 7:
Projecting arm, 8: Mounting hole, 8a: Round hole, 8b: Notch, 9: Bolt, 9a: Rod, 9b: Head, 1
0: circular hole, 10a: small diameter part, 10b: large diameter part, 1
1: Washer piece, 11a: Arc surface, 12: Screw hole, 1
3: Nut piece, 13a: Arc surface, 14: Through hole,
15: Elastic rubber piece, 15a: Arc surface, 16: Pressing plate, 16a: Inner surface.
Claims (1)
孔部8aとこの円孔部8aに連続する切欠部8b
とから成る横方向に貫通する取付孔8を形成し、
この切欠部8b内に出入自在で円孔部8a側の側
面をこの円孔部8aの内周面と一致する円弧面1
1aとした座金片11と、同形状のナツト片13
と、両片11,13に挾持される弾性ゴム片15
とを設け、座金片11にはボルト9を挿通する円
孔10を、ナツト片13にはこのボルト9を螺合
させるねじ孔12を、弾性ゴム片15にはボルト
9を貫通させる貫通孔14をそれぞれ設けてなる
自転車用ハンドルステム。 The handle attachment portion 3 at the end of the stem body 4 has a circular hole portion 8a and a notch portion 8b continuous with the circular hole portion 8a.
forming a laterally penetrating mounting hole 8 consisting of;
A circular arc surface 1 that can freely enter and exit the notch 8b and whose side surface on the circular hole 8a side coincides with the inner circumferential surface of the circular hole 8a.
A washer piece 11 labeled as 1a and a nut piece 13 of the same shape
and an elastic rubber piece 15 held between both pieces 11 and 13.
The washer piece 11 has a circular hole 10 through which the bolt 9 is inserted, the nut piece 13 has a screw hole 12 into which the bolt 9 is screwed, and the elastic rubber piece 15 has a through hole 14 through which the bolt 9 is inserted. A bicycle handle stem that is equipped with each.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1982005757U JPS58108991U (en) | 1982-01-21 | 1982-01-21 | bicycle handle stem |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1982005757U JPS58108991U (en) | 1982-01-21 | 1982-01-21 | bicycle handle stem |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58108991U JPS58108991U (en) | 1983-07-25 |
JPS6237835Y2 true JPS6237835Y2 (en) | 1987-09-26 |
Family
ID=30018551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1982005757U Granted JPS58108991U (en) | 1982-01-21 | 1982-01-21 | bicycle handle stem |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58108991U (en) |
-
1982
- 1982-01-21 JP JP1982005757U patent/JPS58108991U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS58108991U (en) | 1983-07-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5319995A (en) | Handle assembly for a bicycle handlebar | |
US4507105A (en) | Bicycle chainguard | |
EP0129857A1 (en) | Angle-adjustable saddle | |
JPH0281292U (en) | ||
JPS6237835Y2 (en) | ||
JPS6237834Y2 (en) | ||
US6843493B2 (en) | Fastener cover | |
JPH04135893U (en) | Structure for fixing operating wires for bicycles | |
JP6734188B2 (en) | Bicycle frame and bicycle equipped with the same | |
JPS6119992Y2 (en) | ||
DE602004011854T2 (en) | bicycle rim | |
JPS6245987Y2 (en) | ||
JPH0225753Y2 (en) | ||
JPS6311032Y2 (en) | ||
JPS6227515Y2 (en) | ||
JPS58631Y2 (en) | bicycle handlebar bracket | |
JPS6329675Y2 (en) | ||
JPS6015741Y2 (en) | bicycle handle stem | |
JPS639510Y2 (en) | ||
JPH0249191Y2 (en) | ||
JPH021195Y2 (en) | ||
US20030025294A1 (en) | Handlebar fastening assembly for mini cycle | |
JP3078196U (en) | Bicycle umbrella stand | |
JPH0133430Y2 (en) | ||
JPS633594Y2 (en) |