TW318166B - Method of making composite bicycle frames - Google Patents

Abstract

A method of making composite bicycle frames which comprises a front frame and a pair of back furcates and includes the following steps: (a) Prepregs of thermosetting resins reinforced with structural fibers are laminated on a core mold to form a left and a right of back furcates and cured the left and right of back furcates; (b) The prepregs of heat curable synthetic resins reinforced with structural fibers are laminated to form hollow components of the front frame;(c) The cured left and right furcates and prepregs twisted before uncured front frames and heated into mold and the entire bicycle frame may be one integrally.

Description

3 Cut 166 5. Description of invention (

X A7 B7 The present invention is revised. The composite bicycle frame is related. Please read the back & Note $ item and fill in%. This page is about the manufacture of composite bicycle frames = ^ Fang Xin is especially related to the simple thin traditional ferrite type Bicycle frame, whether it is a metal frame, carbon fiber hybrid broken fiber frame, its shape is nothing more than Ba Li, cut ~ or one person "^ Fork independent round tube using welding, dolphin = chemical and other methods combined into the front triangle and the rear triangle structure. Among them, the head tube " connects the handlebar and the front wheel mechanism, " seat tube " connects the seat base perpendicular to the chat pedal axis, and the upper tube " connects the head tube and the lower edge of the seat tube 'These form the front of the frame Triangle part. " Rear upper tube upper edge and rear wheel axle hook, " Rear fork " is connected to seat tube lower edge and rear wheel axle hook, forming the rear triangle of the frame. Whether it is a metal frame, a joint-type frame or a Zhao-shaped Qianwei frame, so many joints of the Ferrite frame need complicated connection or gluing procedures, such as: different sizes of tube technology Γsleep joint quality Control, complex processing procedures, etc. 'therefore, when joining multiple knots: Yuanniu, not only is it time-consuming to manufacture, but also high in cost. In order to solve the problem of the manufacturing process and cost caused by the modeling of the above-mentioned fee-type bicycle frame, the Central Sample Bureau of the Ministry of Economic Affairs only printed it. There is a so-called thin single-shell model (Legal type) bicycle frame. The trend of styling streamline breaks the traditional frame styling model, for example, the front triangle shape is changed from triangle shape to Y shape, T shape, v shape, z shape, etc. It was changed to only the rear upper or the rear fork, and some frames have "X" style, " font, " Z "font, ,, mountain, font, etc. Because ^ takes over The number of items " has become smaller, and the size must be relatively thicker. The national patent No. 4 8 5 0 6 0 7 issued to BreIlt J · Trimble on July 25, 1989 (USP N0. 4 8 5 〇6〇7) reveals a composite material bicycle frame and its manufacturing method, although the frame is made of composite materials, but its shape has not deviated from the conventional diamond-shaped frame with the shape of the front triangle and the rear triangle , And its system (CNS) -4- 000 Printed by the Central Sample Bureau of the Ministry of Economic Affairs only by the Huangxiao Cooperative 318166 A7 ___ ____B7 V. Description of the invention (2) The manufacturing method is to make the whole frame integrally formed at one time. This kind of manufacturing method of forming the bicycle frame with composite material at one time although there is no need to weld, the adhesive is combined to form the adjacent joints. The traditional metal frame has the advantage of being lighter; however, the molds used in its manufacture are therefore quite complex, heavy and heavy, with long processing cycles and low mass productivity. Moreover, it has many joint pipes and overlapping positions, and the lamination is time-consuming and mass production. It has the same characteristics as the traditional diamond-shaped frame, and the wind resistance coefficient is large; and the vertical rigidity is too large due to the diamond-shaped frame, which makes the rider feel the I vibration from the seat tube, which is comfortable The performance is poor. Furthermore, the design space is smaller in order to avoid the transmission path of the chain. The r composite bicycle rack disclosed in U.S. Patent No. 49〇2458 was also issued to Brent Trimbiet on February 20, 1990. The "Molding Method" is a partial succession of the former US Patent No. 4 8 5 0 6 〇7; it is to disclose a composite material molded by, for example, structural fiber reinforced thermosetting synthetic resin. The air or self-assembly methods of vehicle frame parts. The entire frame can be connected into a whole. Although it is recommended to place an inflatable bladder in the hollow of the shell that has not been hardened by the composite material, so that the unhardened shell can be blown out by the outside when the mold is heated and improved Bag to improve the manufacturing accuracy and quality of the composite material frame; but the shape of the frame is still the traditional frontal type frame, and its mold is large and complex and difficult to process. In addition, the vertical rigidity of the traditional diamond umbrella frame is too high, which makes the riding comfort poor. —U.S. Patent No. 4888355 issued to BrentTMmbie on December 26, 1989 is a continuation of the aforementioned U.S. No. 4s〇2 4 5 8 which discloses a composite bicycle rack and its manufacturing method ; The composite material of thermosetting synthetic resin impregnated with unidirectional structural fibers is molded into a one-piece one-piece type ----------____ ______ _________, 乂, 丫 ί :, a dagger, CNS) (2 ί U x ~ ~-:)! 0,000 (please read the notes on the back before filling in this page) Order in I · -5- 318166 A7 B7 V. Description of the invention (3) Central Bureau of Standards of the Ministry of Economic Affairs Zigong Consumer Cooperative prints and cracks the entire bicycle frame, where the composite material layer can be pre-formed into an unhardened frame and then placed into the hollow interior with an inflatable bag (inflatable bladder), and then injected into the mold to blow and pressurize and heat harden . Although the patent proposes to set an airbag inside the statically hardened frame shell and provide M-expansion and hardening steps to improve the accuracy of the "molding", the structure is still the traditional Festo frame from the front triangle and the rear The triangle is formed, and it is formed in one piece, which makes the mold still large and complex and difficult to process. The frame made is still too comfortable because of the vertical rigidity.-It was also awarded on June 22, 1991 U.S. Patent No. 4 9 8 6 9 4 9 to Brent j. Trimbie, "Making Method of Composite Bicycle Rack" is the split of the aforementioned U.S. Patent No. 48 8 9 3 3 5; the molded bicycle frame disclosed by it Hollow zero: with the assembly (ten thousand method, which is made of composite material impregnated with unidirectional structure woven thermosetting or resin) to form a hollow part or assembly, and at least two adjacent wall sections are opposite parts It is overlapped to form a general body, and the overlapped portion is leaked between the outer mold and the inner pressure member (such as an air blowing bag), so that the shell of the frame can be hardened under pressure to provide a Press-molded joint integrated with the wall section and forming a hollow Bicycle frame parts. Although the case provides the technology of overlapping and connecting the wall sections into one to be hardened by pressure heating, the frame is still in the shape of a traditional stone frame, so the mold is still complicated and difficult to process; furthermore The vertical rigidity is large and the riding comfort is poor. US Patent No. 4982975 issued to Brcnt J. TrimMe on July 8th, 1991 is a division case of the aforementioned US Patent No. 45060607, which discloses a ΓComposite bicycle frame with press-molded joints. ”Although the case provides a technique in which at least two adjacent wall sections are overlapped with a lapped layer of fiber-impregnated fiber material to form a joint and then heated and integrated to be hardened and formed; The shape of a traditional diamond-shaped frame (please read the precautions on the back before filling in this page) §! / ·, Order 10,000 -6- V. Description of the invention (4) A7 B7 Central Bureau of Economic Affairs * =: The consumer cooperative ’s policy is one-time molding, so it still has the aforementioned shortcomings (such as complicated and large molds, difficult processing, and poor riding comfort). Although the above-mentioned conventional techniques are all related to the bicycle frame of composite materials; The shape is still a diamond-shaped frame composed of a front triangle and a rear triangle; although its structure can improve the torsional rigidity and lateral cross-stiffness of the frame, it also increases the vertical rigidity, so the frame reduces the shock absorption capacity This makes the rider uncomfortable. The main purpose of the present invention is to provide a method for manufacturing a composite bicycle frame for manufacturing a frame with a front frame portion and a pair of rear forks, the steps of which are first The composite material layer reinforced with fiber-reinforced synthetic resin is individually hardened to form the left and right forks of the rear fork; then the aforementioned composite material is wound into a number of pipe pieces and the pipe pieces are connected by the composite material layer to form a " v " or, , τ " before the shape of the frame, or the whole frame has an X-shaped, cross-shaped, Z-shaped or mountain-shaped shape. Then the left and right sides of the fork after being pre-hardened and molded together with the frame part of the unhardened before-into the mold and hardened together. In this way, to simplify the mold and make the processing more convenient and feasible. The present invention has another objective is to provide a composite material bicycle frame, which is composed of composite material pipes " γι ,,, 1 sub-shaped front frame part and only a pair of rear forks or a complete frame jL 古 Υ-training , The wood has X shape, cross shape, z shape or mountain shape. The rear also contains the pin Bangshi + 4 and the right fork, which can be integrally connected to the appropriate position of the front frame to form a part of the frame, which is not only can increase the torsional rigidity and lateral direction of the frame The rigidity of the cargo curve is not allowed to mention, and the vertical rigidity of the OJ makes the frame with good shock absorption capacity and improves the riding comfort. 、 囷 式 说明 Figure 1-13 is the hemp of the present invention ^ Μ means Gongpu sheet single-shell modeling frame class; of which -i〇X 2V7. S3. 3. 10,000 (please fill in the precautions on the back of the moraine first This page)-

頀 -7- A7 B7 328166 V. Description of invention (s) 囷 1 is the part of the front frame of the 'v learning type, and the rear fork is only one article, located between the five-way and the seat tube, avoiding the key bar; circle 2 is 'The 7 sub-type front frame part is only one rear, located between the five-way and the seat tube, can avoid the key bar; 囷 3 is, 1 ^ -shaped front frame part, and only the rear and the bottom ; Circle 4 is the front frame part of the τ sub-type, and there is only one rear fork, and the whole frame is a " X "type; FIG. 5 is the front frame part of the " V " font, and only the rear upper Figure 6 is the "τ " font front frame part, and only the upper back; Figure 7 is the πτ " font front frame part, and only the upper back; Figure 8 is the" τ " word The front frame part of the model, but only the rear and the bottom; Figure 9 is the front frame part of the 17 " font, and only the rear upper part, and the whole frame is in one "Z," font; Figure 10 is " 7 " font front frame part, and only the rear fork; Figure 11 is the " T " font front frame part, and only the rear fork; Figure 12 is the " T " font The front frame part, and only the rear upper part; Figure I3 is the " V " font front frame Part, and only the back and the bottom, the whole frame is in one, "Mountain" type. From the first to the first three circles of the I-I can modify the cross-section shape to make it more streamlined, and consider the aerodynamics Reduced wind resistance system. The "Y" 11-shaped front frame part of the "囷 14" model, which has only a single-shell thin-frame frame with a lower back; Min 15, 15A and 15B are the 14th lap frames. Right and its mold; Figure 16 shows the "ten" zigzag articulator with complementary unevenness on the left, right and back

10,00'J ---------- β 丨-(please read the precautions on the back before filling this page)

、 -Π Printed by Beigong Consumer Cooperative of Central Central Bureau of Economic Affairs 8- A7 B7

Printed by the Ministry of Economic Affairs Central Bureau of Industry and Consumers Cooperatives $ L V. Description of the invention (6) Structure; After the lap 17 is connected, the fork and the five-way; Figure 18 is the full frame lap hardened molding die 囷 18A is I 8 a-in I8; the cross-section circle taken by [s A cross-sectional line; 囷 ΙβΒ is taken from the 18B_18B cross-sectional line in FIG. I8; FIG. Isc is taken from the surface line in FIG. 1S 1SD is a cross-sectional view taken from the hd-wd cross-sectional line in FIG. 1S; FIG. 1SE is a cross-sectional wall taken from the HE-iSE cross-sectional line in X 1S; X 1SF is taken from FIG. 1S Section drawing taken by the “^” section line; ring 1SG is the section circle taken from the wg — jw section line in FIG. 1S; FIG. 1SH is the section view taken from the HHqsH section line in FIG. 1S; 囷 I9 It shows a blown bag is worn inside the hollow part of the front frame part, and the blower of the blown bag is passed through the head tube of the front frame part; 囷 2 shows the hollow inside of the front frame part Wearing an air blowing bag, in which the air blowing nozzle of the air blowing bag is passed through the seat tube of the front frame part; circle 21 shows that there are two air blowing bags in the hollow inside of the front frame part, of which The air bag's air blowing nozzle is passed through the head tube and seat tube of the front frame part., 'Everyone's figure number description 1. Front frame part 1 1. Embedded part of the head tube 1 2. Seat tube 1 3 · Five-way tube 2. Then «> 3.}.! 〇, 〇〇〇 (please read the precautions on the back and then fill out this page) hit -9- > 18166 A7 B7 V. Description of the invention (7) 2 1 2 2 2 3 2 4 2 5 2 6 3 1 3 2 4 1 4 2 4 3 5. D. G. The left and right of the back fork are relative to the left and right of the back (21) ( 22) The complementary concave-convex cross-shaped joining structure of the complementary surface is the complementary concave-convex cross-shaped joining structure of the rear wheel hook claw mold mold blowing bag blowing bag blowing bag blowing bag mold concave and convex cross-shaped joining structure Please read the precautions on the back and then fill out this page)-Order the Central Committee of the Ministry of Economic Affairs to print and print the detailed description of the composite bicycle frame of the present invention. The basic shape of the bicycle frame is a traditional stone frame. The upper, lower and seatposts are combined into a Y, unified diamond-shaped frame by the original independent support structure. After the triangle is formed by the right side of the piece, you have the upper back and the lower fork. Because there is only a single back (2); the back (2) contains d holes resulting in symmetrical left and right (21), (22) (as shown in Figure 14). In manufacturing, the present invention is the first Composite dies (not shown) layered one by one on a core of 5-3 〇 layers (8-16 layers are the best) with material prepreg and the size of the core mold plus r! I £ / >] ( CNS) Λ4) '3. 3.! 0,000 -10- A7 B7 V. Description of the invention (δ) The thickness of the complex p material layer ▲ is the finished size of the finished product (ie the cavity size minus the composite material (the thickness of the layer is Is the size of the heart mold). The material of this mandrel can be a light weight material such as wood, rubber or plastic which is inexpensive, easy to process and easy to extract and release. After the compound mouth material is layered on the mandrel layer by layer, the mandrel is drawn out, and an air blowing bag (which can be made of nylon material (air bag) is inserted into it, or filled with thermal expansion foam material. Then Place the left or right fork (21) (22) of the fork foot that is worn on the air bag or filled with the thermally expanded waist foam material and has not been hardened, and pressurized and heated to form. (As shown in Fig. 15) In a preferred embodiment of the present invention, the left and right forks (21) (22) of the rear fork are respectively designed with complementary concave-convex cross-shaped joint structures (24) (25) on their opposite adjoining surfaces (23) ( (As shown in Figures 15 and 16.) As shown in circle 16, the depth or height D of the concave and convex is 5 10 A centimeters as the sack, and the cross font is thick and 5 25 millimeters is appropriate. The cross character Zhao size is followed by the surface (23) The larger the allowable area, the better. The subsequent left and right (21) (22) (as shown in Figure η, ls) are pressed and heated and hardened by the respective molds, followed by The adhesive is adhered to each other on its adjoining surface (2 3), and the cross-shaped structure with complementary unevenness is engaged with each other to strengthen the bonding strength to pre-form a rear fork (2) the left and right (21) The end of the (22) is integrally provided with a rear wheel hook (2 6) to facilitate the installation of the rear wheel (not shown). As shown in Fig. 17, when the left and right are (21) (22) When they are integrated into one, the bottom and arcs of the left and right forks (21) (22) are pre-designed with a small angular groove (G) (as shown in Figure 17) with a bottom of 2 mm and a height of 2 mm to facilitate adhesion. The overflow of the glue is also conducive to the design of avoiding stress prohibition. As shown in Figure 18, 1 SA ~ 1 SH, the front frame part (〗) is embedded in the head tube U 1), the embedded parts in the seat tube ( 1 2), five-way metal embedded parts (〗 3) cooperate with laminated mandrel (not shown) to laminate the prepregs of composite materials on mandrel (not shown) one by one, in which

S3. 3. i〇, 〇〇U (please read the notes on the back before filling this page)

Ordered by the Central Standard Rating Bureau of the Ministry of Economic Affairs only for consumer cooperatives. 11- 3rnee A7 B7 V. Description of the invention (?) The number of layers of composite materials printed by the Central Provincial Bureau of the Ministry of Economic Affairs is generally about 5_30 layers. The 8_16 layer is the best; then pull out the mandrel to form the unhardened frame part (1). Then, the aforementioned fork (2) that has been pre-hardened and formed is wound around the seat tube (I2) and the five-way tube (13) of the frame part (1) before being heated and hardened with a layer of composite material. Place (for example, if the line 14 is to be connected to the two-way pipe (13) at the rear (2)); the length of the overlap should be at least 4-8 cm, and it is best to adopt a gradient design to avoid Stress concentration (gradient layer length should be S-10mm) It is better to add the adhesive in the film state to the overlapping part to increase the adhesive strength. It is better to apply 1-2 layers of composite material prepreg, film-like epoxy-based foaming material in the vicinity of the overlapping layer of the five-way embedded part (13) and the back (?). The outermost layer, so as to apply external pressure during molding to increase the tight integration of the structure. 13 As shown in Figures 19, 20, and 21, insert the air blowing bag (4 1) (4 2) (4 3) into the hollow interior of the frame part (1) before it has not hardened; the air blowing bag Ui) 2 The air blowing nozzle (4 4) can be entered by the head tube (; li) or the seat tube (j 2) (as shown in Figures i 9, 2 〇, 2 丄) 〇 As shown in @ 18, after that ⑴ has been taken After it is connected to the frame part before hardening (1), and the frame part before hardening (1) is hollowed with a blown bag or filled with thermal expansion foam material, it can be integrated into the mold cake (5) I Heating and hardening forming. If the inside of the front frame part (1) wears the right-name generation, you have an air blowing bag (4 1) (4 2) or (4 3) (as shown in Figure 19, 20, 21 ), Then γ Λ Λ on τ 1 Ding; Chuan Ke can press the air blowing nozzle (ο) through the head tube (11) or the seat tube (I2) during heating and hardening to pressurize the front frame part, To improve its manufacturing accuracy 'If the front frame part (1, + d, the inside is filled with thermal expansion foam material, then when the mold (5) is heated and hardened, the foam will be increased. The material is expanded privately to provide internal expansion pressure to make the flat wooden part of the front frame part (1) adhere to the mold when it is hot (please read the precautions on the back before filling this page) zl ·

The text of the order is sent in a clever way; (CNS) 210: \ Ιϋ, υΟΟ -12- A7 B7 Printed by the Monthly Consumers Cooperative of the Central Prototype Bureau of the Ministry of Economy V. Invention description (/ ο) The inner wall of the tool (5) Furthermore, the bicycle frame of composite material is integrally formed. The type and type of prepreg material used will vary according to the characteristics required by the frame, such as under the requirements of multi-directional flexure, rigidity, compressive strength, tensile strength, shock absorption capacity and weight, etc. The fiber selected by Hu Jin includes glass fiber, back fiber, Kevlar fiber, or Spectra fiber. Each fiber type can be divided into low, medium and high modulus. If special properties are required, different fibers can be mixed, such as using 25, 50, or 75 weight carbon fibers, as opposed to using 75, 50, 25 glass fibers. In another specific embodiment of the present invention, the left and right forks (21) (22) after being pre-hardened and formed separately are wound with prepreg material and overlapped on the frame part before the hardening (1), Then put them together into the mold (5) to heat and co-harden them-bulk molding. According to the manufacturing method of the present invention, the frame only has a pair of back-to-back; that is, the left and right forks (2 1) (2 2), and the left and right forks (2 1) (2 2) are given separately Precast hardening molding, therefore, it manufactures left and right (^) (22) molds (3 1) (3 2) (as shown in Figure 15) and molds for manufacturing the whole frame (5) (as shown in Figure 8) Show) 'can be simplified and reduced, which is very convenient for the manufacture of bicycle frames. In addition, the rear (2) is pre-hardened and formed, and there is only a pair of rear (2) designs, so that (2) the seat tube (12) and the seat frame (12) can be overlapped on the front frame part. Any position between the five-way pipes (13) can improve the changeable space of the shape design, and then the streamline shape with low wind resistance coefficient can also be designed according to the hydrodynamic method. In particular, since the rear part (2) can have many positions overlapping the front frame part (!), It can avoid the bad installation position of the driving chain (not shown) and increase the design space of the bicycle. The composite bicycle frame made by the manufacturing method of the present invention has a front frame portion (1) and a pair of rear frames (2); wherein the front frame portion (1) is stretched ( (Please read the notes on the back before filling this page)

-Order

, Description of the invention (in a continuous piece or patch "wound into a pipe, and then (1) nf ⑴, seat tube embedded parts (12), five-way embedded)-the body is formed as "", " Π ", " 7 " Front frame part Π ', and then (2) overlap the front frame part (1) seat tube (12) and the five-way tube (13) (where appropriate, and then- The mold is heated and hardened together. The head tube (1) is formed as a front-selector for installing the front fork assembly (not shown), and the seat tube (12) forms a seat supporter for installing the seat heat (Not shown); the five-way tube (13) is formed as a lock plate supporter for installing the lock plate assembly (not shown). The bicycle frame can be avoided because it only has a pair of rear forks (2) The path of transmission training strip (not shown) is conducive to the design of bicycle shaping. And its structure can provide appropriate elastic damping characteristics in the upright direction of the load 'to reduce the upright direction vibration of the riding bicycle to the rider, Therefore, it provides better riding comfort. —--------- ^ ·-(please read the precautions on the back before filling this page) Order Λ I. Ministry of Economic Affairs Bureau of Consumer Cooperatives work only quasi-Indian all-rounder an I 4

Claims (1)

3l8i66 ------ VI. Scope of patent application A8 B8 C8 D8 2. The Central Consumers Bureau of the Ministry of Economic Affairs Employee Consumer Cooperative Institution-a method of manufacturing composite bicycle racks, used to manufacture a A pair of frames with left and right forks; the manufacturing method includes the following steps: (a) Laminate the core with a prepreg of thermosetting fiber synthetic resin on the mandrel to individually form the left side of the rear fork 、 Right fork, and then the left and right forks that have been laminated are separately molded into the mold and heated and hardened; (b) The prepreg material of thermosetting woven synthetic resin is laminated to form each hollow frame part; (c) After the hardened and formed fork, the left and right forks are lapped with prepreg material to wrap around the aforementioned unhardened frame part, and then the mold is heated and co-hardened to form a whole frame. According to the manufacturing method of patent application No.1, the left and right forks of the rear fork are individually wrapped with prepreg and lapped on the part of the frame that has not been hardened before being reheated into the mold and hardened together. According to the manufacturing method of item 1 of the patent application scope, the left and right forks that have been individually hardened and molded are first combined with each other to form a complete body, and then lapped with the front frame part by prepreg material. "Into-mold heating co-hardening" According to the manufacturing method of item 3 of the patent application scope, the left and right forks that have been hardened and formed at their adjoining surfaces to form a complementary reinforced structure with a complementary concave-convex shape. According to the manufacturing method of item 1 of the patent application scope, the front frame part is cut from a number of tubes with fiber prepreg material. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling in this page) Order% • 14-3lfil66 AS Β8 C8 printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs ----------- ^ ___ The film or patch is wound and rolled. 6. The manufacturing method according to item 5 of the patent application scope, in which the front frame part is formed by the overlapping connection of several pipe fittings with prepreg material " YV ", " T " or " 7, font shape , Or the whole frame is shaped like X ·· ,,, ten ", z " or mountain ". 1 According to the manufacturing method of item 1 of the patent application scope, the individual moldings of the left and right forks are blown into the hollow inside by Ny10n inflatable bladder, or foamed by thermal expansion The material is placed in a hollow interior and foamed and expanded to form. 8 According to the manufacturing method of item 1 of the scope of the patent application, where the front frame part is connected to form a control armature to manufacture the front fork assembly, the seat armature armature is equipped with a cushion assembly, A pedal support is provided to install the pedal assembly; the ends of the rear forks are connected to form a rear wheel governor to install the rear wheel assembly. 9 · The manufacturing method according to item 1 of the patent application scope, in which the front regulator is made of fiber synthetic resin prepreg wrapped around a head tube and the embedded part; the seat cushion regulator is made of fiber synthetic resin prepreg It is formed by covering and wrapping an embedded part of the seat tube; the pedal supporter is formed by wrapping and wrapping a five-way embedded part of a woven synthetic resin prepreg material, and these three parts are formed by the fiber layer overlapping and supplementing The frame part before the ceremony. 10. According to the manufacturing method of item 1 of the patent application park, where the overlap between the fork and the frame part after the lamination is completed but not yet hardened, the cross section design of the rear fork has 2-4 mm Inner shrinkage, as the size of the paper, apply the Chinese National Standard (CNS) A4 specification (210X297 mm) (please read the precautions on the back before filling out this page). C order • 15 · 318166 A8 B8 C8 D8 VI. "Reservation of the thickness of the scope of the patent application" 11. According to the manufacturing method of the 7th section of the patent application, where the frame part before the lamination is overlapped with the fork after the formation, the air bag of the dragon should be blown. When molding, the air blowing nozzle can enter the mold shell from the head pipe joint or the seat tube head. 12. According to the manufacturing method of the patent patent application No. 1, wherein the joint surface of the left and right forks is reserved. Adhesive thickness up to 1 mm 0 According to the manufacturing method of Patent Application No. 1 of the patent application, the overlapping length of the frame part after the fork has been formed and before the layer has been completed is 4_8 cm, and the length of each gradient is 5-10mm. One according to the scope of the patent application 1, 2, 3 '6, 7' 8 '9' 10, 11, 12 or 13 of the composite material bicycle frame made by Paleo and Wanjue. 13 14 kinds according to the scope of patent application 7 (Please read the precautions on the back before filling out this page) Order the composite material made by the masking and 10,000 method printed by the Beigong Consumer Cooperative of the Central Bureau of Economics and Trade of the Ministry of Economic Affairs, printed in items 10, 11, 12 or 13 Bicycle frame. This paper scale is applicable to China National Standard (CNS) A4 ^ grid (210X297mm) sh 16.