JPS5878872A - Frame for two-wheel barrow - Google Patents
Frame for two-wheel barrowInfo
- Publication number
- JPS5878872A JPS5878872A JP17667481A JP17667481A JPS5878872A JP S5878872 A JPS5878872 A JP S5878872A JP 17667481 A JP17667481 A JP 17667481A JP 17667481 A JP17667481 A JP 17667481A JP S5878872 A JPS5878872 A JP S5878872A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- material tube
- hole
- head
- tube
- 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.)
- Pending
Links
Landscapes
- Motorcycle And Bicycle Frame (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
不発明は自転車またはオートバイ等の二輪車用フレーム
にＭするものである０
従来の二輪車用フレームのヘッドパイプとメインパイプ
は、通常別個の部材として形成されており、ｒ＃薄部材
ラッグ等を介して浴接するか、あるいは−込み等の結合
方法で一体に構成されている０・しかしながら従来の方
法はいずれも、ｗｓ成部材が加熱されるため、素材の熱
変化による強度低Ｆが生じたり、接合部材あるいは結合
作業が複軸であるので生産効率が悪いという欠点があっ
た。Detailed Description of the Invention The invention is applied to frames for two-wheeled vehicles such as bicycles and motorcycles.The head pipe and main pipe of conventional two-wheeled vehicle frames are usually formed as separate members, and r# However, in all conventional methods, the WS component is heated, so the strength due to thermal changes in the material increases. There are disadvantages in that low F occurs and production efficiency is poor because the joining members or the joining work are multi-axial.
本発明は上述の欠点を解消するためなされたもので一本
のパイプ葉材で二輪車用フレームのメインフレームとヘ
ッド部を一体に構成することにより、フレーム自体の強
度を向上させると共に、生産効率を向上させることを目
的とするものである。The present invention has been made to solve the above-mentioned drawbacks, and by integrally constructing the main frame and head part of a motorcycle frame with a single pipe material, it improves the strength of the frame itself and improves production efficiency. The purpose is to improve
以下図面について本発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.
第１図は本出願人が開発した二輪車用フレーム管の成形
方法（特願昭３３−３９００７ Ｊ＃） 、すなわち、
半円形断面の直線状凹陥部と、この直線状凹陥部の両側
に設けた膨出空所を有する一対の分割金型の前記直線状
凹陥部に素材管を挿入し、１ｆＩＩ状凹陥部に挿入し得
るベース芯金の段付部と、パンチシャフトの段付部とに
より・＊Ｃ嵩材管を挾持し、この素材管をパンチシャフ
トで押圧Ｔると共に、この素材管の内部に高圧液を圧入
することにより、素材管を膨出空所内に膨出成形する成
形方法によつて一本のパイプに成形した二輪車用フレー
ムの素材管ムを示すもので、ｌはその略直線的な直状部
、コは下方膨出部、３は下方膨出部、参は上下膨出部側
の素材管の押圧端部である。Figure 1 shows a method for forming frame tubes for motorcycles developed by the present applicant (Japanese Patent Application No. 39007/1983), that is,
A material tube is inserted into the linear recess of a pair of split molds having a linear recess with a semicircular cross section and a bulging space provided on both sides of the linear recess, and then inserted into the 1fII-shaped recess. The stepped portion of the base core metal and the stepped portion of the punch shaft sandwich the bulk material tube, press the material tube with the punch shaft, and inject high-pressure liquid into the material tube. This shows a material pipe for a motorcycle frame that is formed into a single pipe by a molding method in which the material pipe is bulged into a bulging cavity by press-fitting, and l indicates its approximately straight shape. 3 and 3 are downward bulging portions, 3 and 3 are pressing ends of the material tube on the side of the upper and lower bulging portions, respectively.
本発明においては第１図に示すように、票材管ムを使用
し、その上方膨出部コの天板ａコａＴｔ穿孔して＠λ図
に示すように孔ｊを形成し、同じく下方膨出Ｗ６Ｊの底
板部３ａを穿孔して孔６を形成すると共に、上下膨出Ｓ
コ、３側の素材管ムの押圧端部ダを挾り取るように打ち
抜き加工して窓部７を形成する。In the present invention, as shown in Fig. 1, a tab material tube is used, and the top plate a core aTt of the upper bulging part k is bored to form a hole j as shown in Fig. @λ. The bottom plate part 3a of the bulge W6J is drilled to form the hole 6, and the upper and lower bulges S
F. The window portion 7 is formed by punching out the pressed end portion of the material tube on the 3 side so as to pinch it off.
次に孔！ｒ、６内にインナーパイプｌを圧入し、＠Ｊ図
に示すように上方膨出部コに上ワンプを圧入してヘッド
部の上部ベアリング保持部を形成し・下方膨出部３に下
ワン１０を圧入してヘッド部の下部ベアリング保持部を
形成してヘッド＠／／ｒｔ形成すると共に、このヘッド
ｓｌｌと一体である素材管ムの直状部ｌをメインフレー
ムとして二輪軍用フレームを一体に形成する。Next is the hole! Press fit the inner pipe L into R and 6, and press fit the upper wamp into the upper bulging part 3 to form the upper bearing holding part of the head part as shown in Figure @J. 10 is press-fitted to form the lower bearing holding part of the head part to form the head@//rt, and the straight part l of the material tube that is integrated with this head sll is used as the main frame to integrate the two-wheeled military frame. Form.
第参図は本発明の二輪車用フレームを使用した自転車の
全体図である。The second figure is an overall view of a bicycle using the two-wheeled vehicle frame of the present invention.
以上のようにｍ成した本発明の作用効果は次の通りであ
る。The effects of the present invention achieved as described above are as follows.
（１） 一本の素材管ムでヘッド［／／とメインフレ
ームｌを冷間加工、により一体構造としたものであるか
ら、加熱溶層の熱変化に伴う強度低下もなく、復雑な溶
層工程を行う必要もなく、生産効率の向上が得られる。(1) Since the head [// and main frame l are made into an integral structure by cold working with a single material tube, there is no decrease in strength due to thermal changes in the heated weld layer, and complicated welding is not required. There is no need to perform a layer process, and production efficiency can be improved.
また部材層れによる事故の心配もなくなる〇
（２）強度上重要なヘッド部はインナーパイプｚ′を圧
入して二重構造としたものであるから、従来の接合部に
介在させたラッグ等より軽砿で、より強い強度が得られ
る。In addition, there is no need to worry about accidents caused by parts layering. (2) The head part, which is important for strength, has a double structure by press-fitting the inner pipe z', so it is easier to use than conventional lugs inserted in the joint. Light masonry provides greater strength.
（８） 二重構造のヘッド部／ｌは窓部７の肉厚が段
差となり、恰も装飾ラグ等の模様のようになるから、自
転車の外観が向上する。(8) In the double-structured head part/l, the wall thickness of the window part 7 is stepped, resembling a pattern of a decorative rug, etc., thus improving the appearance of the bicycle.
（４） 二重ＩＩ盾のヘッド酩ノＩは窓部７にインナ
ーパイプｌの表面が現れるから、インナーパイプｌの材
質を例えばステンレス等にすれば従来にない意匠的効果
のあるヘッド部を得ることができる。(4) Since the surface of the inner pipe 1 appears in the window 7 of the head of the double II shield, if the material of the inner pipe 1 is made of stainless steel, for example, a head part with an unprecedented design effect can be obtained. be able to.
第１図は本発明において使用する素材管を示すｆＩ４視
図、＠２図はその素材管の加工とインナーパイプを示す
斜・視図、第３図は本発明フレームのヘッドＳを示す一
部切欠側面図、第４！図は本発明７レームを便用した自
転車の全体を示す側面図である。
Ａ・・・素材管、ｌ・・・直状部、λ・・・上方膨出部
、コａ・・・天板部、３・・・下方膨出部、３ａ・・・
底板部、ダ・・・押圧端部、ｊ、４・・・孔、７・・・
窓部、ｌ・・・インナーパイプ、９・・・上ワン、１０
・・・下ワン、ｌｌ・・・ヘッド部〇
第１ｒｉｇｉFigure 1 is a fI4 perspective view showing the material tube used in the present invention, Figure 2 is a perspective view showing the processing of the material tube and the inner pipe, and Figure 3 is a part showing the head S of the frame of the present invention. Cutaway side view, 4th! The figure is a side view showing the entire bicycle using the seven frames of the present invention. A... Material tube, l... Straight part, λ... Upper bulging part, Core a... Top plate part, 3... Downward bulging part, 3a...
Bottom plate part, DA...pressing end, j, 4...hole, 7...
Window part, l... Inner pipe, 9... Upper one, 10
...lower one, ll...head part 〇1st rigi
Claims (1)
管ムを使用し、その上方−出Ｓコの天板部λａを穿孔し
て孔ｊを形成し、Ｆ方膨出部３の底板ｓ３ａを穿孔して
孔６ｒｔ形成し、この上下膨出部側の素材管の押鉱端部
亭を打ち抜いて窓ｓ７を形成し、孔ｊ１６内にインナー
パイプｔｒｔ圧大してヘッド［／／を形成すると共に、
このヘッド部／／と一体である素材管ムの他のＮ分／を
メインフレームおした二輪車用フレーム。Using a material tube with a vertical bulge 86rt at one end of the L tube, a hole j is formed by drilling the top plate part λa of the upper protrusion S, and the bottom plate s3a of the F side bulge part 3 is formed. A hole 6rt is formed by drilling the hole 6rt, a window s7 is formed by punching out the pressed end part of the material tube on the side of the upper and lower bulging parts, and an inner pipe trt is compressed into the hole j16 to form a head [// ,
A frame for a two-wheeled vehicle in which this head part // and the other N parts of the material tube that are integrated with the main frame are attached.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17667481A JPS5878872A (en) | 1981-11-04 | 1981-11-04 | Frame for two-wheel barrow |
| US06/438,494 US4484756A (en) | 1981-11-04 | 1982-11-02 | Blank tube and main frame for two-wheeled vehicle |
| EP82110178A EP0078551B1 (en) | 1981-11-04 | 1982-11-04 | Blank tube and main frame for a by bicycle |
| DE8282110178T DE3276355D1 (en) | 1981-11-04 | 1982-11-04 | Blank tube and main frame for a by bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17667481A JPS5878872A (en) | 1981-11-04 | 1981-11-04 | Frame for two-wheel barrow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5878872A true JPS5878872A (en) | 1983-05-12 |
Family
ID=16017734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17667481A Pending JPS5878872A (en) | 1981-11-04 | 1981-11-04 | Frame for two-wheel barrow |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5878872A (en) |
-
1981
- 1981-11-04 JP JP17667481A patent/JPS5878872A/en active Pending
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