TWI227203B - Method for producing the shaping-tubes of bicycles - Google Patents

Abstract

This invention relates to a method for producing the shaping-tubes of bicycles, including the steps of drawing and extruding a tube to control the thickness of the tube so as to feature the tube with a thicker thickness at the tubular wall of the tube. A forming machine is then implemented to shape the tube so as to modify partial tubular diameter of the tube to the desired dimension and to form the tube into a desired configuration. A mold and a hydraulic mechanism are then used to form designated 3D patterned configuration over the tubes by means of hydraulic means. Accordingly, this invention achieves the objects of making tubes of bicycles of atypical configurations and forming various delicate 3D patterns over the tube.

Description

1227203 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a method for manufacturing a bicycle tube, especially a bicycle tube that can produce a special shape and a variety of delicate three-dimensional patterns on the tube. Method for making bicycle pipe fittings. [Previous technology] "Bicycle" is a kind of simple structure and easy to ride and use. Because it does not have the problem of air pollution and has the effect of sports at the same time, in recent years, bicycles are no longer just traffic. The means of transportation has also been upgraded to become a fitness tool for leisure sports in daily life. It is widely favored by consumers and is an activity suitable for all ages. It is also because the function of bicycles is gradually shifting to the use of leisure sports. Modeling is universally important. And because bicycles are mainly made of pipes with various shapes to form their bodies, if you want to change the shape of the bicycle, you can only change the bicycle's pipes. At present, the conventional processing method for the molding of bicycle pipe fittings is shown in the patents of Nos. 326004 and 370499, which are mainly made by putting a molding device into the pipe and then expanding the molding device outward. In order to make the convex module of a specific shape on the forming device be squeezed outward from the inner wall of the pipe, so that the pipe wall of the pipe is formed into a specific shape. However, because this method requires the forming device to be inserted into the pipe, and the action of the forming device to control the convex decoration module is the same, it can only form a circular tube and the diameter of the tube, such as Fixed-diameter risers, front forks, rear forks, and other special-shaped curved handles and risers, front forks, and rear forks with different pipe diameter shapes cannot be produced by this method

V. Description of the invention (2) Three-dimensional decorative modeling makes decoration and decoration, and as a result, the Agricultural Bank of China cannot make the overall modeling and change the three-dimensional decorative modeling; 彳 U body decorative modeling can not be added to the whole Beauty. In addition, two = incompatibility, which affects the car driver ’s simple three-dimensional decoration. K ’s processing methods can only produce body brocade shapes, such as the trademark pattern J. 'The inability to produce a more delicate standpoint is caused by the inventor's oblique and imperfect design: ^ The processing method of official part modeling has been researched and improved. After a long time, it has been modified, and the second is in-depth conception. , And product invention. Efforts were made to improve the trial work and developed the present invention. [Summary of the Invention] Based on the above, the main shape of the bicycle pipe fittings of the present invention is to provide a molding manufacturing method that can be used for special outer pipe fittings. Specifically, the bicycle of the exquisite three-dimensional pattern shape, the self-invention of the present invention | The steps are the first method of using the pipe to squeeze the second H-type "method" its tube wall position formation-thicker thickness: Shaped parts are shaped to change the shape of the pipe; the machine adjusts the pipe size and processes the pipe into a specific shape: 2:;: the required pressure and pressure mechanism is used to hydraulically process the pipe 2 :: And-liquid parts and various kinds of fines made on the fittings =: = Bicycle tube [Embodiment] Those who are in the shape of a normal body. The following is a list of several kinds of self-made 1227203 completed by the processing method of the present invention. 5. Description of the invention The official document is a preferred embodiment for detailed description, so that anyone familiar with the technology will better understand the features and purposes of the present invention. The present invention is also applicable to the similar three-dimensional modeling of bicycle pipe fittings. The following are merely preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, that is, according to the present invention, the same changes and modifications are made: This creation should still patent:

: Please refer to the figure-it is a block diagram of the processing steps of a bicycle pipe fitting method, the steps are: Clothing W a) Controlling the thickness of the pipe fittings ·· The pipe fittings of the thickness are first pulled and squeezed by means of pipe drawing and extrusion The positions of the body decoration shapes with different thicknesses of the tube wall form a thinner thickness without the need for three-dimensional convex weight. Thicker than 4 in order to reduce the bicycle fittings b) shaping processing: includes the processing of the shape of one piece of fittings, which makes: the processing of the size of thousands of outer diameters and the outer diameter of the control fitting + part of the pipe diameter All kinds of processing and even to :::; the machine tool for the purpose of the tube 'the processing method and the resulting shape, such as; _ the size of the shape formed by the processing of the shape of the shape (χ 〇 brother-the shape of the slope is not formed The shape of the pipe expansion (2n) The shape of the reduced pipe (30), etc., which is not processed in the second picture. The processing of the shape of the pipe shaped by the process of the shrinkage shown in the fourth picture The pipe is formed into a specific shape: the two-force two-machine presses the pipe and bends it as shown in the figure.

1227203 V. Description of the invention (4) The small orbital pressure f shape (11) formed, the dented 0 (21) formed by the dented processing shown in the third figure and the flattened processing shown in the fifth figure The flattened shape (40) formed. Molding :: Pipe fittings are placed into a mold with a predetermined cavity shape, and then high-pressure oil is injected into the pipe fittings by a hydraulic mechanism, so that the larger area is shaped first, and later, "cut off the oil supply to make the pipe fittings" Sealed, and axially add a to the high-pressure oil in the pipe from both ends of the pipe to form a small arc angle on the thicker pipe wall and connect the pipe to the pipe to obtain a second solid = 'Finally open the mold and take (12) (22) body pattern modeling d) Follow-up processing: use the official parts. Force ... to shape the pipe fittings such as the large-radius bender shape (13) and cutting) shown in the figure: for easy cooperation], the slot (5 2 because the present invention has the above-mentioned special A special shape of the bicycle pipe, and ^ processing method, so you can add the special plastic bicycle pipe processing: Mu original; while the hydraulic molding, the pre-set pipe wall === 于The deformation margin of the body picture at the beginning makes the pipe parts southerly and more delicate three-dimensional shape modeling. If the bicycle shape can be changed, the parts can be matched with each other, which greatly increases. The overall shape of the bicycle is also summarized as above. When the present invention is known to have industrial applicability and advancement ^ 'and no similar products or publications have been found among similar products': 1227203 V. Description of the invention (5 ), So it has met the application requirements for invention patents. Only the above is only one of the preferred embodiments of this creation. When the scope of implementation of this creation cannot be limited, that is, the scope of application for patents based on this creation Equality done Of and modifications are still to be within the scope of the present patent covers the creation.

1227203 Brief description of the drawings [Illustration of the drawings] The first drawing, which is the second to sixth drawings of the present invention, is the [Illustration of the drawing number] (1 0) The slope shape (12) The three-dimensional convex decoration (2 0) Expansion shape (2 2) Three-dimensional convex decoration (31) Three-dimensional convex decoration (4 1) Three-dimensional convex decoration (5 1) Grooving processing step block diagram produced by the present invention (1 1 shape (1 3 (2 1 shape (3 0 shape (4 0 shape (5 0 (5 2 of various pipe shapes.) Small arc bending shape) large arc bending shape) concave shape) shrink shape) flat shape) three-dimensional convex shape) slot

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Claims (1)

1227203 6. Scope of patent application 1 A kind of self-defense; ^ Master ΛΛ a) First, use the shape of the pipe to make the method, the steps are: the shape of the wall of the pipe; control the thickness of the pipe to make the change t)) then jjj the The parts and parts of the pipe fittings ^ The machine performs shaping processing on the pipe fittings to change the set shape; to fit the required size and process the pipe fittings into special C) After the deployment of a TΪ type processing to make A two I f /, and a hydraulic mechanism to hydraulically form the pipe 2, such as Shen 2 and 2 official, to form a specific three-dimensional pattern. As a working method, the shape of the bicycle pipe fittings described in the whole article S 1-the addition of the shape of the pipe fittings:? Department 'Including-control and processing of pipe fittings with an outer diameter of K inch and the second method =: describe the shape of bicycle pipe fittings: shape, make =: liters of the shape of the bicycle pipe fittings described in item 1 of the patent scope ~ Li $ 1, the method of adding the king is to place the pipe fittings-with a pre-C ', and then-high pressure oil through a hydraulic mechanism; the main into the pipe t, so that the larger area shape is formed first, and then the oil supply is cut off The tube is loosely sealed, and the high pressure oil in the tube is axially stretched from the two ends of the tube to the 10th stomach 1227203_ VI. The scope of the patent application to form a three-dimensional shape with a small arc angle and a small area . 6. According to the method of modeling the bicycle pipe fittings described in item 1 of the scope of the patent application, after the hydraulic forming process, the pipe fittings are then cut, drilled and processed with large arc bends by ordinary processing machines to form The large-radius pipe shape and the shape of the grooves, slots and other pipe shapes are provided for easy use with other parts.