JPS585601Y2 - spoke wheels - Google Patents

Description

【考案の詳細な説明】 本考案は、２輪車用のスポーク車輪に係り、詳しくはハ
ブへのスポークの取付は手段に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spoked wheel for a two-wheeled vehicle, and specifically relates to a means for attaching spokes to a hub.

従来、ハブへのスポークの取付は手段は、第１図に示す
ように、ハブ１の孔１ａにスポーク２を差込み、その基
端の頭部で抜止めして、リム側においてニップルでスポ
ーク２を締付けていた。Conventionally, the means for attaching spokes to a hub is as shown in FIG. 1, by inserting spokes 2 into holes 1a of hub 1, securing them with the heads at their proximal ends, and then attaching spokes 2 with nipples on the rim side. was tightened.

ところで、ａに示すように外側からスポーク屈曲部２ａ
を差込んだものは、時間経過と共に屈曲部２ａの曲がり
角度が拡角し、スポーク２がハブ１のフランジ１ｂとの
間隙Ｃを減少する方向に変形して緩んでしまい、またｂ
に示すように内側からスポーク屈曲部２ａを差込んだも
のは、ハブ１の孔１ａが点Ａ、Ｂにおいてスポーク２と
点接触しており、使用と共に点Ａ、Ｂが摩耗してスポー
ク２に緩みが生じていた。By the way, as shown in a, the spoke bending portion 2a is viewed from the outside.
If the spokes 2a are inserted, the bending angle of the bent portion 2a widens over time, and the spokes 2 deform and loosen in a direction that reduces the gap C with the flange 1b of the hub 1.
In the case where the spoke bent part 2a is inserted from the inside as shown in the figure, the hole 1a of the hub 1 is in point contact with the spoke 2 at points A and B, and points A and B are worn out with use and the spoke 2 is damaged. There was some slack.

このため、所定時間使用後、再度スポーク２の張りを調
節する、いわゆる増し締め作業が必要とされ、スポーク
車輪のメンテナンスを大変面倒なものにしていた。For this reason, after a predetermined period of use, it is necessary to adjust the tension of the spokes 2 again, a so-called retightening operation, which makes maintenance of the spoke wheel extremely troublesome.

そこで、本考案は、スポークを略々−直線状に構成する
と共に、その基端部を扁平状に構成し、更に該扁平部を
スポークが交差する部分を越えて延出して、先端部にて
丸棒状に構成し、該スポーク基端部をハブの半径方向に
突出したラグに固着手段により固着してスポークをハブ
に取付けると共に、スポークの先端部をニップルにより
リムの略々中央部に、隣接するスポークと所定間隔を隔
てて締付けて構威し、もってスポークの緩みの発生を防
止し、増し締め作業を不用とすると共に、張力作用方向
が相殺されるようにスポークを２個重ねてラグに固定し
、構造的に比較的弱いラグ部分の破損を防止してハブの
軽量化をも図ったスポーク車輪を提供することを目的と
するものである。Therefore, in the present invention, the spokes are formed into a substantially linear shape, and the proximal end portions are formed into a flat shape, and the flat portion is further extended beyond the intersection of the spokes, and the tip portions are formed into a flat shape. The spokes are configured in the shape of a round bar, and the spokes are attached to the hub by fixing the proximal ends of the spokes to lugs protruding in the radial direction of the hub by fixing means, and the tips of the spokes are attached to approximately the center of the rim by means of nipples. The spokes are tightened at a predetermined distance from the spokes, thereby preventing the spokes from becoming loose and eliminating the need for additional tightening work. The object of the present invention is to provide a spoked wheel that is fixed and prevents damage to the lug portions, which are structurally relatively weak, and that also reduces the weight of the hub.

以下、第２図及び第３図に沿って本考案による実施例を
説明する。Embodiments of the present invention will be described below with reference to FIGS. 2 and 3.

スポーク車輪１０はハブ１１とリム１２とを多数のスポ
ーク１３により締付け・固定して構成されている。The spoked wheel 10 is constructed by tightening and fixing a hub 11 and a rim 12 with a large number of spokes 13.

ハブ１１の左右にはそれぞれ互に半ピツチずれて所定間
隔毎に半径方向に突出した多数のラグ１５．１５’が設
けられており、これらラグ１５．１５’の先端部にはそ
れぞれハブ１１の軸線方向と平行に孔１６が形成されて
いる。On the left and right sides of the hub 11, a large number of lugs 15, 15' are provided which protrude in the radial direction at predetermined intervals and are shifted by half a pitch from each other. A hole 16 is formed parallel to the axial direction.

また、スポーク１３は略々−直線状に構成され、かつそ
の基端部１３ａが扁平に形威され、先端に向かって徐々
にその幅が減少されて、先端部１３ｂでは丸棒状になっ
ている。Further, the spokes 13 are formed into a substantially straight line, and have a flattened base end 13a, the width of which gradually decreases toward the tip, and a round bar shape at the tip 13b. .

そして、該扁平のスポーク基端部１３ａはラグ１５の孔
１１に２個重ねられてボルト１７及びナツト１９により
固定されており、該２個のスポーク１３は放射方向線ａ
に対して対称に延びて、更にこれらスポーク１３の先端
部１３ｂはニップル２０によりリム１２の略々中央部に
、隣接するスポークと所定間隔を隔てて締付けられてい
る。The flat spoke base end portions 13a are stacked in the holes 11 of the lugs 15 and fixed by bolts 17 and nuts 19, and the two spokes 13 are aligned in the radial direction a.
Further, the tip ends 13b of these spokes 13 are tightened by nipples 20 approximately at the center of the rim 12 at a predetermined distance from adjacent spokes.

以上説明したように、本考案によれば、スポーク１３を
基端部１３ａが扁平になるように形威し、該基端部１３
ａをハブ１１の半径方向に突出したラグ１５にボルト
１７及びナツト１９等の固着手段により固着したので、
スポークは屈曲部及び点接触部を有せず、屈曲部の拡角
及び点接触部の摩耗等によりスポークに緩みが生じるこ
とを防止できる。As explained above, according to the present invention, the spokes 13 are shaped so that the base end portions 13a are flat, and the base end portions 13a
a is fixed to the lugs 15 protruding in the radial direction of the hub 11 using fixing means such as bolts 17 and nuts 19.
The spokes do not have bent portions or point contact portions, and it is possible to prevent loosening of the spokes due to widening of the bent portions and wear of the point contact portions.

従って、衝撃吸収機能に優れ、丈夫であると共に軽量で
あるスポーク車輪の優れた特徴を有するものでありなが
ら、従来必要とされた増し締め作業を省くことができ、
メンテナンスが容易である。Therefore, although it has the excellent characteristics of a spoked wheel, which has excellent shock absorption function, is strong, and is lightweight, it also eliminates the retightening work that was previously required.
Easy maintenance.

また、スポーク１３を大部分扁平としたので、スポーク
１３をハブ１１に２個重ねて何着したもにもかかわらず
、スポーク１３が交差部で干渉することを防止でき、ま
た商標等を塗着又は刻印することができ、更にスポーク
１３を軽合金で形成することができ、この場合塗料の付
着が良好で耐久性の優れた色付けをすることができる。In addition, since most of the spokes 13 are flat, it is possible to prevent the spokes 13 from interfering with each other at the intersection, regardless of how many spokes 13 are stacked on the hub 11, and it is possible to prevent the spokes 13 from interfering with each other at the intersection. Alternatively, the spokes 13 can be engraved, and the spokes 13 can be made of a light alloy. In this case, the paint can adhere well and can be colored with excellent durability.

更に、ラグ１５には放射方向線ａに対して対称に延びて
いる２個のスポーク１３が張設されるので、ラグ１５に
は両方からの張力が相殺されて過大な荷重が作用するこ
とがなく、構造的に比較的弱いラグ１５部分が破損され
るようなことはなく、ハブ１１の軽量化をも図ることが
できる。Furthermore, since the two spokes 13 extending symmetrically with respect to the radial direction line a are tensioned on the lug 15, the tensions from both of them cancel each other out and an excessive load is not applied to the lug 15. Therefore, the lug 15 portion, which is structurally relatively weak, will not be damaged, and the weight of the hub 11 can be reduced.

また、ラグ１５．１５’をハブ１１の左右に互に半ピツ
チずらして配設すると、スポーク１３を固定する際のボ
ルト１７等の固着手段の装着が容易である。In addition, if the lugs 15 and 15' are shifted by half a pitch on the left and right sides of the hub 11, it is easy to attach fixing means such as bolts 17 when fixing the spokes 13.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａ 、’ ｌ）は従来例によ、るハブへのスポー
ク取付は手段を示す正面断面図、第２図は本考案による
スポーク車輪を示す側面図、第３図はその正面断面図で
ある。 １０・・・・・・スポーク車輪、１１・・・・・・ハブ
、１２・・・・・・リム、１３・・・・・・スポーク、
１３ａ・・・・・・基端部、１３ｂ・・・・・・先端部
、１５．１５’・・・・・・ラグ、１６，１７．１９・
・・・・・固着手段、２０・・・・・・ニップル、ａ・
・・・・・放射方向線。Figures 1a and 1) are front sectional views showing means for attaching spokes to a hub according to a conventional example, Figure 2 is a side view showing a spoked wheel according to the present invention, and Figure 3 is a front sectional view thereof. It is. 10...Spoke wheel, 11...Hub, 12...Rim, 13...Spoke,
13a... Base end, 13b... Tip, 15.15'... Lug, 16, 17.19.
...Fixing means, 20...Nipple, a.
...radial direction line.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）ハブとリムとを多数のスポークにより締付け・固
定してなるスポーク車輪において、ハブに所定間隔毎に
半径方向に突出した多数のラグを設け、またスポークを
略々−直線状に構成すると共に、その基端部を扁平に構
成し、更に該扁平部をスポークが交差する部分を越えて
延出して、先端部にて丸棒状に構威し、該スポーク基端
部を２個重ねて固着手段により前記ラグに固定して、か
つ該２個のスポークを放射方向線に対して対称に延設し
、またスポークの先端部をニップルにより略々中央部に
、隣設するスポークと所定間隔を隔てて締付けて構成し
たスポーク車輪。(1) In a spoke wheel in which a hub and a rim are tightened and fixed by a large number of spokes, the hub is provided with a large number of radially protruding lugs at predetermined intervals, and the spokes are arranged in a substantially straight line. At the same time, the base end portions of the spokes are configured to be flat, and the flat portions are further extended beyond the intersection of the spokes, and the tip portions are shaped like a round bar, and the base end portions of the two spokes are overlapped. The two spokes are fixed to the lug by a fixing means, and the two spokes are arranged symmetrically with respect to a radial direction line, and the tips of the spokes are arranged approximately in the center by nipples, and at a predetermined distance from adjacent spokes. A spoked wheel constructed by separating and tightening the spokes. （２）ラグをハブの左右に互に半ピツチずらして配設し
た実用新案登録請求の範囲第１項記載のスポーク車輪。(2) A spoked wheel according to claim 1, in which the lugs are disposed on the left and right sides of the hub, shifted by half a pitch from each other.