JPH0228961Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案は、スポーク車両のスポークを締付け
るのに使用されるニツプルの座金に関する。DETAILED DESCRIPTION OF THE INVENTION This invention relates to a nipple washer used for tightening the spokes of a spoked vehicle.

従来の座金付ニツプルを、第１図ないし第３図
で述べるに、まず、第１図、第２図で示した従来
例では、頭部１、胴部２、首部３、回動胴部４の
首部３に座金５を挿入し、条痕６を設けること
で、座金５をニツプルＡと同体とし、且つ該座金
５の脱落を防止している。このニツプルＡの場合
は、該ニツプルＡに貫通する雌ネジ７を刻設後、
座金５を回動胴部４端から挿嵌し、首部３に挿入
された座金５の下方胴部２で突状とした条痕６を
圧刻して、前記座金５は突状の条痕６によつて脱
落を防止されるとともに、条痕６を刻設すること
で、雌ネジ７側で歪み、雌ネジ７ａのようにネジ
孔が縮小するから（図示していないが）スポーク
との螺合が固くなるとされていた（実開昭52−
36456号公報）。事実螺合も固く結合具合もよい
が、雌ネジ７が刻設された状態で外圧を加えて条
痕６を設けるから、冷間鍛造で加工したニツプル
Ａは外部が硬くなり、加工工程の増加は加工硬化
を増し、硬化されたニツプルＡの度重なる締付
け、増締によつて、該条痕６付近で亀裂を生じる
こともあり、また、該条痕６はリムの孔（図示し
ていない）に片寄り、摩擦効果を発揮することか
ら、回動胴部４でニツプルＡの回動によるスポー
クの張り具合の微調整が、し難くなることがあつ
た。 To describe the conventional nipple with washer with reference to FIGS. 1 to 3, first, the conventional example shown in FIGS. By inserting the washer 5 into the neck portion 3 of the nipple A and providing the grooves 6, the washer 5 is integrated with the nipple A, and the washer 5 is prevented from falling off. In the case of this nipple A, after carving the female screw 7 that passes through the nipple A,
The washer 5 is inserted from the end of the rotary body 4, and the lower body 2 of the washer 5 inserted into the neck 3 is pressed to form a protruding striation 6. 6 prevents it from falling off, and by forming the grooves 6, the female screw 7 side is distorted and the screw hole is reduced like the female screw 7a (not shown), so it is difficult to connect with the spoke. It was said that the screws became harder (1986-
Publication No. 36456). In fact, the threads are tight and the connection is good, but since the grooves 6 are created by applying external pressure with the female thread 7 carved, the nipple A processed by cold forging becomes hard on the outside and increases the number of processing steps. increases work hardening, and repeated tightening and retightening of the hardened nipple A may cause cracks near the grooves 6. Also, the grooves 6 may form holes in the rim (not shown). ) and exerts a frictional effect, making it difficult to finely adjust the tension of the spoke by rotating the nipple A in the rotating body 4.

代つて、第３図では実開昭55−129101号公報で
開示された車輪用スポークのニツプルが、図示さ
れている。即ち、頭部１１、胴部１２、首部１
３、回動胴部１４、雌ネジ１７、を完成したの
ち、座金１５を首部１３に止着したニツプルＢが
あるが、本改良案も、前記ニツプルＡと同じよう
に雌ネジ１７にスポークを螺合するが、突起１６
を設けるために雌ネジ１７を刻設したのち、座金
１５を挿入し、胴部１２をシゴキ加工するとき
は、雌ネジ１７は全体に亘つて縮径することとな
り、回動胴部１４による微調整が困難である。ま
して、条痕６、突起１６は座金５、１５の内径よ
り大きく膨出しなければ座金５、１５を止着する
ことはできず、リムにおけるニツプルＡ、Ｂの挿
通孔も該条痕６もしくは突起１６の外径よりも大
きい孔を明けざるを得なかつた。 Instead, FIG. 3 shows a nipple of a wheel spoke disclosed in Japanese Utility Model Application Publication No. 55-129101. That is, the head 11, the body 12, the neck 1
3. There is a nipple B in which a washer 15 is fixed to the neck part 13 after the rotating body part 14 and the female thread 17 are completed, but this improved plan also has a spoke on the female thread 17 in the same way as the nipple A. Although it is screwed together, the protrusion 16
When inserting the washer 15 and ironing the body 12 after carving the female thread 17 to provide a Difficult to adjust. Furthermore, the grooves 6 and projections 16 cannot securely attach the washers 5 and 15 unless they bulge out larger than the inner diameter of the washers 5 and 15, and the insertion holes for the nipples A and B in the rim also need to bulge out larger than the inner diameters of the washers 5 and 15. I had no choice but to drill a hole larger than the outer diameter of 16.

そこで、本考案は上述のような欠点を除去し、
確実に座金を首部に止着できるようにしたもので
ある。 Therefore, the present invention eliminates the above-mentioned drawbacks and
This allows the washer to be securely attached to the neck.

本考案を第４図ないし第６図で詳述するに、一
定の板厚の板材に曲げ絞り加工によつて平面部２
３、底部２４、曲げ部２５、外底部２６を形成さ
せた後、打抜き加工によつて外径寸法D₁、内径
寸法Ｄを有するリング状の座金２０を得る。この
とき内径部２１の内径側に少なくとも相対する二
面、一般的には第４図に示すように４箇所に座金
２０中心に対して平行且つ内径方向に２mm〜４mm
程度の直線部２７を同時に形成し、概略八角形状
の多角形状に形成する。直線部２７、２７は夫々
相対する直線部２７、２７とで後述するニツプル
Ａ、Ｂの胴部２もしくは１２の外形（円形）と接
線接触、換言すると胴部２、１２を直線部２７、
２７で挟持可能な巾決めがされている。この座金
２０を前記ニツプルＡ、Ｂで述べたように内径部
２１を挿入（平面部２３側から回動胴部４，１
４、胴部２，１２、首部３，１３へと押込む）す
ると、胴部２，１２よりやや寸法的に大きくクリ
ヤランスをとつてある内径部２１側に、直線部２
７が折曲げられ、且つ削り取られるように首部
３，１３に固い嵌合として嵌め込まれることとな
る。 The present invention will be described in detail with reference to FIGS. 4 to 6. The flat part 2 is formed by bending and drawing a plate material of a certain thickness.
3. After forming the bottom portion 24, the bent portion 25, and the outer bottom portion 26, a ring-shaped washer 20 having an outer diameter dimension D ₁ and an inner diameter dimension D is obtained by punching. At this time, at least two faces facing the inner diameter side of the inner diameter part 21, generally four places as shown in FIG.
At the same time, a straight line portion 27 of about 100 mm is formed into a substantially octagonal polygonal shape. The straight portions 27, 27 are in tangential contact with the outer shape (circular) of the body portions 2 or 12 of nipples A, B, which will be described later, with opposing straight portions 27, 27, respectively.In other words, the body portions 2, 12 are connected to the straight portions 27,
The width is set at 27 so that it can be held. Insert this washer 20 into the inner diameter part 21 as described for nipples A and B (rotating body parts 4 and 1 from the flat part 23 side).
4, into the body parts 2, 12 and neck parts 3, 13), the straight part 2 is inserted into the inner diameter part 21, which is slightly larger than the body parts 2, 12 and has clearance
7 is bent and scraped off so that it is fitted into the necks 3, 13 with a tight fit.

以上述べたように、座金の孔は四つの同一円弧
と４つの辺とからなる略八角形状とし、該円弧は
ニツプルの胴部の直径より大きく、相対する平行
な対辺はニツプルの胴部直径に対して挟持し得る
巾を有し、夫々の円弧および各辺は同一中心を有
していて、前記八角形とした座金の孔にニツプル
を挿入して、首部下部で座金を胴部に相対する辺
で接線接触して、座金をニツプルに固着したか
ら、直線部２７は小さく、且つ円形のニツプル外
形に対して接線接触し、押込んだ座金の止着を容
易にする。又、直線部２７が接線接触による小さ
い面積の為、ニツプルおよび座金をメツキ後であ
つても、メツキを剥離することなく摩擦接触によ
る止着ができ、ニツプルと座金を確実に一体化す
る自動化加工ができるから、加工費の低廉化と併
せ、１個のニツプルに１個の座金を確実に付着さ
せ、スポークとニツプルの組立てにおいても、自
動的に座金を入れた状態で、夫々締付けを自動で
きる。そして、ニツプルの胴と座金は、軽い摩擦
接触で止着されているので、ニツプルの締付けに
よつて、座金の内径と該胴部との接線接触が解か
れ、ニツプルの座金、即ち、ゆるみ止めとしての
座金の効果を発揮する。 As mentioned above, the hole in the washer has a substantially octagonal shape consisting of four identical circular arcs and four sides, and the circular arc is larger than the diameter of the body of the nipple, and the opposing parallel sides are equal to the diameter of the body of the nipple. Each arc and each side have the same center, and the nipple is inserted into the hole of the octagonal washer, and the washer is opposed to the body at the lower part of the neck. Since the washer was fixed to the nipple by making tangential contact on the sides, the straight portion 27 is in tangential contact with the small and circular shape of the nipple, making it easier to fix the pressed washer. In addition, since the linear portion 27 has a small area due to tangential contact, even after the nipple and washer have been plated, they can be fixed by frictional contact without peeling off the plating, and automated processing that reliably integrates the nipple and washer is possible. This not only reduces processing costs, but also ensures that one washer is attached to one nipple, and when assembling spokes and nipples, each one can be automatically tightened with the washer inserted. . Since the body of the nipple and the washer are fixed by light frictional contact, by tightening the nipple, the tangential contact between the inner diameter of the washer and the body is released, and the washer of the nipple, that is, the locking Demonstrates the effect of a washer.

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

第１図・第２図は従来の第１例であつて、第１
図は側面図、第２図は同断面図、第３図は従来の
第２例における断面図、第４図ないし第６図は本
考案の実施例における座金であつて、第４図は同
全体正面図、第５図は同側面図、第６図は第４図
における−部分断面図である。 ２０……座金、２１……内径部、２７……直線
部、１２……胴部、１３……首部。 Figures 1 and 2 show the first conventional example.
The figure is a side view, FIG. 2 is a sectional view of the same, FIG. 3 is a sectional view of the second conventional example, and FIGS. 4 to 6 are washers of the embodiment of the present invention. 5 is a side view of the same, and FIG. 6 is a partial cross-sectional view of FIG. 4. 20... Washer, 21... Inner diameter part, 27... Straight part, 12... Body part, 13... Neck part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ニツプルの胴部に座金を止着した座金付車両用
ニツプルにおいて、該座金の孔は四つの同一円弧
と４つの辺とからなる略八角形状とし、該円弧は
ニツプルの胴部の直径よりも大きく、相対する平
行な対辺はニツプルの胴部直径に対して挟持し得
る巾を有し、前記八角形とした座金の孔にニツプ
ルを挿入して、首部下部で座金を該胴部に相対す
る辺で接線接触して、座金をニツプルに固着した
ことを特徴とする座金付車両用ニツプル。 In a vehicle nipple with a washer that has a washer fixed to the body of the nipple, the hole of the washer has a substantially octagonal shape consisting of four identical arcs and four sides, and the arc is larger than the diameter of the body of the nipple. , the opposing parallel opposite sides have a width that can be held in relation to the diameter of the body of the nipple, and the nipple is inserted into the hole of the octagonal washer, and the side facing the body of the washer at the lower part of the neck is inserted into the hole of the octagonal washer. A vehicle nipple with a washer, characterized in that the washer is fixed to the nipple by making tangential contact with the nipple.