JPH039506Y2 - - Google Patents
Info
- Publication number
- JPH039506Y2 JPH039506Y2 JP1984030651U JP3065184U JPH039506Y2 JP H039506 Y2 JPH039506 Y2 JP H039506Y2 JP 1984030651 U JP1984030651 U JP 1984030651U JP 3065184 U JP3065184 U JP 3065184U JP H039506 Y2 JPH039506 Y2 JP H039506Y2
- Authority
- JP
- Japan
- Prior art keywords
- welded
- pipes
- frame
- bent
- chain stay
- 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
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Description
【考案の詳細な説明】
産業上の利用分野
本案自転車、特に子供用自転車のフレームに関
する。[Detailed description of the invention] Industrial field of application The present invention relates to frames for bicycles, especially children's bicycles.
従来の技術
従来、自転車フレームは、金属パイプを所要長
さに切断して三角のフレーム本体を形成し、これ
にフレーム本体と別個に形成したチエンステーを
ハンガーラグで連結し、チエンステーと立パイプ
との間をバツクホークで連結し、全体を構成する
のが一般である。Conventional technology Conventionally, bicycle frames are made by cutting a metal pipe to the required length to form a triangular frame body, connecting the frame body and a separately formed chain stay with a hanger lug, and connecting the chain stay and the vertical pipe. Generally, the spaces are connected with backbones to form a whole.
考案が解決しようとする課題
従来のダイヤモンド型自転車フレームでは、部
品数も多く、従つて構成時に溶接個所が多く製作
上工数が多く、これがため生産効率が悪く、自然
生産費の低減ができない不利がある。Problems that the invention aims to solve Conventional diamond-shaped bicycle frames have a large number of parts, and therefore require many welding points during construction, requiring a large number of man-hours to manufacture.This has the disadvantage of poor production efficiency and the inability to reduce natural production costs. be.
特に、子供自転車フレームでは小形であるが部
品数において大人用と全く同じであり、生産コス
トの低減は最大の課題である。 In particular, children's bicycle frames are smaller but have exactly the same number of parts as those for adults, so reducing production costs is the biggest challenge.
本案は上記のような従来のフレーム生産の不利
欠点を解消することを目的としてなされたもので
ある。 The present invention was developed with the aim of eliminating the disadvantages of conventional frame production as described above.
課題を解決するための手段
所要の外径と長さを有する長尺のパイプを中央
部より湾曲並列し、その前半部を、平行に且つ互
に近接させると共に、前上りに曲げ起し、その前
端をヘツドパイプに一体的に溶着連接させてフレ
ーム主体に形成し、後半部を、適所より所要の角
度で後上りに屈曲傾斜させると共に、パイプ間に
後車輪を配設可能に屈曲離隔させ、後端を環状に
連結するチエンステーに形成し、中間上面にシー
トパイプを溶着連接したハンガーラグを差渡し溶
着したことを特徴とする自転車フレームにある。Means for Solving the Problem Long pipes having the required outer diameter and length are curved in parallel from the center, and the front half of the pipes are made parallel and close to each other, and bent upward in the front. The front end is integrally welded and connected to the head pipe to form the main body of the frame, and the rear part is bent and inclined rearward at a desired angle from a suitable point, and bent and separated so that the rear wheel can be placed between the pipes. The bicycle frame is characterized in that the ends are formed into chain stays that are connected in an annular manner, and a hanger lug with a seat pipe welded and connected to the intermediate upper surface is passed and welded thereto.
作 用
本案は上記のように一本の長尺パイプを二つ折
りに折返して、前半部のフレーム主体と後半部の
チエンステーとを一体に構成したものであるか
ら、従来のフレームと違い溶接個所は、フレーム
主体の前端のヘツトパイプ3との連接部およびシ
ートパイプ4を取付けたハンガーラグ5の補強用
連接脚片6を並設フレーム主体間に溶接する程度
で従来のフレーム製作の場合に比し、溶接の部品
が著しく少なく又構成部品も少ないものである。Function As mentioned above, this project is made by folding a single long pipe in half and constructing the main body of the frame in the front half and the chain stay in the rear half, so unlike the conventional frame, there are no welded parts. , compared to the case of conventional frame manufacturing, the connecting part with the head pipe 3 at the front end of the frame main body and the reinforcing connecting leg piece 6 of the hanger lug 5 to which the seat pipe 4 is attached are welded between the parallel frame main bodies, There are significantly fewer welded parts and fewer component parts.
実施例
以下、本案を図面に示す実施例によつて説明す
ると、所要の外形と長さを有する一本の金属パイ
プを中央部より所要の半径で同一面上で湾曲し二
つに折り返し、その略1/2長さの前半部を、平行
に且つ互に近接させてフレーム主体1を形成し、
後半部を所要の内幅を有する環状のチエンステー
2に形成したものである。そしてフレーム主体1
は所要角度の前上りに曲げ起し、前端をヘツドパ
イプ3に溶着連接し、チエンステー2はフレーム
主体に連らなる部分より所要角度の後上りに屈曲
傾斜させている。またフレーム主体1とチエンス
テー2との連接部位にシートパイプ4を溶着連接
したハンガーラグ5を差渡し溶着している。な
お、6は補強用連接脚片で平行パイプ間に溶着配
設し、ハンガーラグ5とフレーム主体1との溶着
を補強するものである。Example The present invention will be explained below with reference to an example shown in the drawings.A single metal pipe having the required external shape and length is curved from the center on the same plane at the required radius, and then folded in two. The front half parts of approximately 1/2 length are arranged in parallel and close to each other to form a frame main body 1,
The rear part is formed into an annular chain stay 2 having a required inner width. And frame main body 1
is bent forward at a required angle and the front end is welded and connected to the head pipe 3, and the chain stay 2 is bent and inclined backward at a required angle from the part connected to the main body of the frame. In addition, a hanger lug 5, to which a seat pipe 4 is welded and connected, is passed and welded to the connecting portion between the frame main body 1 and the chain stay 2. Note that 6 is a reinforcing connecting leg piece that is welded between the parallel pipes to reinforce the welding between the hanger lug 5 and the frame main body 1.
効 果
本案は上記のように1本の長尺パイプを二つ折
りに折返してフレーム主体とチエンステーとを一
体に構成したものであるから、複数のパイプが結
する従来のダイヤモンドフレームとは相違し、独
創の形状をもつをものである。Effects As mentioned above, this project is made by folding one long pipe in half and constructing the main body of the frame and the chain stay as one body, which is different from the conventional diamond frame in which multiple pipes are connected. It is something with an original shape.
したがつて、チエンステー後端を屈曲連結する
から、前端をヘツドラグに溶着するだけで、環状
に結合し、その間にシートポストを取付けたハン
ガーを溶着するだけで、全体を設けることがで
き、溶着個所を著るしく減少させることがでるも
のである。また、ハンガーラグを主体フレームと
チエンステーとの連結部上面に差渡し溶着してい
るいるから、フレーム主体を補強すると共にこの
部分を可及的低位置に設けることができ、乗降し
やすい自転車、特に、子供自転車では補助車輪が
付いて自立しているから、その効果は大きいもの
である。また、フレーム主体を構成するパイプ間
に補強用連接脚片を嵌合溶着することができ、フ
レーム主体とハンガーとの溶着強度を著るしく向
上させるものである。また、チエンステーにおい
て、後端が左右に連結しているから、横向に転倒
させたときに、それが衝撃を受けて後車輪を保護
し、転倒の多い子供自転車では特に効果の大きい
ものである。 Therefore, since the rear end of the chain stay is bent and connected, the entire structure can be created by simply welding the front end to the head drag, joining it in an annular shape, and welding the hanger with the seat post attached between them. It is possible to significantly reduce the In addition, since the hanger lug is welded across the top of the connecting part between the main frame and the chain stay, it not only reinforces the main frame but also allows this part to be placed as low as possible, making it easy to get on and off the bicycle, especially , Since children's bicycles are equipped with auxiliary wheels and can stand on their own, the effect is great. Furthermore, the reinforcing connecting legs can be fitted and welded between the pipes that constitute the frame main body, thereby significantly improving the welding strength between the frame main body and the hanger. In addition, since the rear ends of the chain stay are connected to the left and right, it protects the rear wheels from the shock when the bicycle falls sideways, which is especially effective for children's bicycles, which often fall over.
図面は本案の実施例を示すものにして、第1図
は側面図、第2図は平面図である。
1……フレーム主体、2……チエンステー、3
……ヘツドパイプ、4……シートパイプ、5……
ハンガーラグ。
The drawings show an embodiment of the present invention, with FIG. 1 being a side view and FIG. 2 being a plan view. 1... Frame main body, 2... Chain stay, 3
...Head pipe, 4...Seat pipe, 5...
hanger rug.
Claims (1)
部より湾曲並列し、その前半部を、平行に且つ互
に近接させると共に、前上りに曲げ起し、その前
端をヘツドパイプ3に一体的に溶着連接させてフ
レーム主体1に形成し、後半部を、適所より所要
の角度で後上りに屈曲傾斜させると共に、パイプ
間に後車輪を配設可能に屈曲離隔させ、後端を環
状に連結するチエンステー2に形成し、中間上面
にシートパイプ4を溶着連接したハンガーラグ5
を差渡し溶着したことを特徴とする自転車フレー
ム。 Long pipes having the required outer diameter and length are curved in parallel from the center, the front half of the pipes are parallel to each other and close to each other, and the front ends are bent forward and upward, and the front ends are integrally attached to the head pipe 3. The rear part is bent and tilted upward at a required angle from a proper place, and the rear wheel is bent and separated so that a rear wheel can be placed between the pipes, and the rear end is connected in an annular shape. A hanger lug 5 formed on a chain stay 2 with a seat pipe 4 welded and connected to the intermediate upper surface.
A bicycle frame characterized by being welded together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3065184U JPS60143088U (en) | 1984-03-05 | 1984-03-05 | bicycle frame |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3065184U JPS60143088U (en) | 1984-03-05 | 1984-03-05 | bicycle frame |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60143088U JPS60143088U (en) | 1985-09-21 |
JPH039506Y2 true JPH039506Y2 (en) | 1991-03-08 |
Family
ID=30530540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3065184U Granted JPS60143088U (en) | 1984-03-05 | 1984-03-05 | bicycle frame |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60143088U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4551136B2 (en) * | 2004-06-18 | 2010-09-22 | 宮田工業株式会社 | Low floor frame for bicycle |
-
1984
- 1984-03-05 JP JP3065184U patent/JPS60143088U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60143088U (en) | 1985-09-21 |
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