TWM273514U - Improved structure of front fork shoulder of bike having function of losing weight - Google Patents

Description

M273514

4. Description of Creation (1) [Technical Field to which the New Type belongs] This creation is about a "P structure for front and shoulders of bicycles with weight reduction effect", which provides a front fork shoulder structure with two through slots, and ^ The slot channel is horizontally placed between the connecting part and the shoulder of the tube fixing part. Y can reduce the volume of the shoulder structure and make a weight-reducing effect. The structure of the crotch is practical and practical. The creative team. [Prior art] According to the appearance of the commonly used bicycle fork handle 40, please refer to Figures 7 and 8A. Most of the fork handle 40 has a longitudinal perforation 4 2 at the center, and < A bicycle stand pipe is tightly set, and a shoulder portion 41 is formed at the handle ^ side obliquely and downwardly, and opposite ends of the shoulder portion 41 are formed with opposite shape fork tube fixing portions 43. The fixing portion 4 3 is provided with a vertical perforation 4 4 to allow the two forks of the front fork to pass through the setting position to achieve the effect of the setting position. As today's bicycle structures are becoming more lightweight, weight reduction of various parts is an important development goal. Because the components of the front fork shoulders are mostly made of solid materials and have a heavy weight, the industry currently does not affect the overall structural strength. Taking into consideration, 'mostly it is provided with a channel through the shoulders, and the shoulders are hollow to achieve weight reduction. As shown in another conventional figure 8B, it is connected to the perforated tube 4 4 of the fork tube fixing portion and the shoulder 41 with a diagonal channel 4 5; or as shown in another conventional structure of the ninth figure, It is penetrated diagonally to the central perforation 4 2 from both sides and the outer surface of the tube fixing part 4 3 to form a diagonally penetrating channel 4 7

Page 5 M273514 Fourth, the creation instructions (2) '-, and fixed holes 4 8 are added inside the perforations 4 4 on both sides, and the upper fork tube 4 9 is stably fixed by the bolt body 4 + 8 1 It is located in the perforations 4 4 on both sides, and the above is formed by the channels to reduce the weight of the shoulder structure. [Content] (Technical problem to be solved) However, the creator found that the aforementioned various front and shoulder weight reduction channels are installed in the middle of the space; and the structure shown in the conventional ninth figure can provide a fork The tube holder directly penetrates to the central perforation, and the restriction needs to be penetrated by = solid, which not only has complicated components and adds…, (technical means to solve the problem) research and ^ t :: ' The front and the handle structure are improved before the shoulder, the main body of the basin respects π; the weight reduction effect of the bicycle 桧 channel, namely the basin # Mody: the shoulder extended by the fork handle is provided with a whole shoulder; the fixed portion is perforated with The connection between the yin tube joints • The knot and the u channel ', and the two slot holes tied to the shoulders greatly reduce the shoulder structure ;: wear, shape' for those who can have a heavy effect. Can make the other Shoulder structure can be reduced

M273514 Fourth, the creation instructions (3) (compared to the effect of the previous technology) The above description shows that compared with the prior art, this creation has the following effects: j built to 4 2 weight loss effects: because this creation has weight loss effects bicycle fr = structure Γ 'It is attached to the shoulder with at least two horizontal oblique Ϊϊ 重重 = 孔' • In order to effectively reduce the volume of the shoulder structure, and can be strengthened by means of formula: due to the creation of the shoulder Work-the penetration of the transverse channel š and a rib is formed between the two channels of the shoulder, so that the shoulder 1 ^ mouth structure can still effectively show the enhanced effect when under pressure. Shi Yue 4 aired a% -type sigh in the air, according to the actual compressive strength of the handle, and made a sculpting design. 2 Up and down or left or right or a symmetrical channel configuration to pass through weight loss and not + wear; if and with the shoulder body A hollowed-out groove is set up from bottom to top (but a hollowed-out groove is set up from area 2π or from top to bottom, and it is connected to the hollowed-out groove by the fixed part and the vertical pipe 1% 4I to the through-hole, which can make the groove The road and ribs show weight-reducing effect i, which is indeed innovative. Appeal [Implementation Method] Yanqing table M i car iY T II * Brother II, as shown in the figure, is the handle of this creation with its own weight-reducing effect 1 Π Liang, ° structure, its structure mainly includes a vertical pipe 20 through the body 1 ° 1Α〇 and a fork pipe fixing part 12 is composed of, wherein the shoulder is mainly by the handle 10 central through hole 1 1 0 on both sides of the outer surface of the outer ring

M273514 4. Creation instructions (4) A shoulder is formed obliquely downward, and the shoulder body 11 is provided with a fork tube fixing portion 12 at the end of the shoulder body 11 which is inflammation at the center of the upper end of the shoulder body 11 and the forks on both sides The pipe fixing portion 12 is provided with longitudinal through holes 1 1 0 and 120, respectively, so that the central perforation 1 10 can be set for the vertical pipe 20 group to be located above the handle 1 (3, and the fixing portions on both sides thereof). The perforation 1 2 0 can be used for front, upper and tube 3 groups to be set below the fork tube fixing portion 12 connected to the shoulder 11 to form a shoulder structure of a bicycle handle fork with a positioning function. The main improvements are:

Please refer to the third figure, which is a schematic diagram of the composition of this creation. The _ 10 10 shank and the connecting shoulder 1 与 between the shank 10 and the fork pipe fixing section 12 are connected by a vertical pipe 200. The shank portion 10 through holes 1 1 0 and the inner peripheral surface of the fork pipe fixing portion 12 (ie, the shoulder structure) are arranged in two horizontally oblique straight lines to form two through slots 1 3 And 1 4; and the formation of the through-holes 1 3, 1 4 is shown in the fourth to fifth figures (the schematic diagram of the cross-section of this creation) 'the through-holes 1 1 0 of the connecting portion 10 are provided with slot holes 1 3 and 1 4 each form a through channel 1 3 0, 1 4 0 A through hole 1 120 is applied through the through hole 1 10 on the inner ring peripheral surface side to perform a transverse processing through the perforation 120 through the shoulder portion ii to the tube fixing portion 12 The inner surface of the ring; S can reduce the solid volume of the shoulder A and design the shape of the shoulder, and it can effectively reduce the weight of the front and shoulder without affecting the structural strength. The same is true; the through-channels 130 and 14 of the shoulder portion 11 can be formed by penetrating downwardly through the perforations 120 of the fork pipe fixing portion 12 and passing through the grooves i ′ and 14.

M273514 IV. Creation Instructions (5) As shown in Figure 4, another embodiment of this case is a shoulder body 11 on either side of the handle 10 for the vertical pipe 20 to pass through. The upper end or the lower end is provided with a recessed hole 50 for hollowing out, and the inner wall of the fixing part is connected with the connecting part 12 to form a through hole 14 which is also the same as the handle 10 and the wall part of the outer periphery. (Connected to the shoulder body 11) Apply a 14 through hole processing; and the shoulder 11 on the other side can also be treated in the same way; according to the strength requirements, the through hole can be set on the wall 14 is the height lower than the hollow groove 50 provided on the shoulder 11 or the same height as the hollow groove 50. • Among them, the slot and channel of this creation can be formed by die-casting and forging, and then shaped by CN C, and then drilled, which can achieve versatility and ease of molding. Now, in order to further explain the characteristics of the structure of this creation, the diagram shown in Annex III is a schematic diagram of a forward force test of a general fork tube body, which can be tested on the handle and its extended shoulder. Schematic diagram, if the conventional structure is to reduce the weight and dig a slot directly on the shoulder, the test conditions and data are as shown in Annex 1. Today, the creative structure is provided with two channels as shown in Annex 1. The test results shown in Annex III are used to make a positive force bar J2ί. The results are shown in Annex 1. It can be found that the lighter the color is closer to 1 Λ / the smaller the test value (N / mrrf), the less likely it is to break. The better, so from the comparison of the table in Annex III, we can know that with the same force conditions, the quality of the structure of this creation is Shen + Fei 4 w and ΛΜ to 1,000 < 266g, but the compound handles are all f f (early pure trenching structure) ) Less 237g < 485 (N / mirf) and excellent. 1 to 1 I is smaller than 186

Page 9 M273514

Creation description (6) By using the volume of setting or vertical setting, the structure of the comprehensive structure is improved to reach the shoulders of the forks. ”The shoulder structure has weight-reducing effect and innovative effect. It is in line with the new patent. The function of the original technology used on this creation is composed of components, slots or channels, and a weight-reducing effect structure A, so that the entire system of this creation provides a horizontal and a bicycle front and shoulders. Benefits, and its constitutive patent applications have to pray. Or, if the above-mentioned reason does not exceed the scope of the description according to the original invention, the shoulder structure can be formed to have a double to horizontally reduce the fruit of the solid portion of the shoulder structure to form a weight-reducing bicycle precursor. The structure is very innovative and practical. "The weight-reducing effect of the front fork shoulders of bicycles or the double-slotted holes or channels that are longitudinally worn, presents a variety of forms that are easy to mold and make the overall structure of the industrial practical structure has never been seen in books and periodicals. Or use it publicly, I kindly ask Jun Bureau to make a clear reference. Early approval is a change made by the idea of the actual implementation of this creation and the immediate operation of it.

Page 10 M273514 Brief description of the drawings [Simplified description of the drawings] The first picture: This is a schematic diagram of the three-dimensional appearance of the extended shoulder of the creative handle. The second picture: This is the appearance of the shoulder of this creation. The third picture is the top view of the shoulder of this creation. Figure 4: Schematic diagram of the processed G-G section of this creative shoulder. Fifth: It is a schematic cross-section of B-B for this creation. The sixth picture is a diagram of another embodiment of the creation. The seventh picture: It is a schematic diagram of the conventional appearance. Figure A: A schematic diagram of a conventional section. Fig. 8B is a schematic sectional view of a conventional structure after processing. P ninth diagram: A schematic cross-sectional view of another conventional structure. Attachment 1: Test and analysis diagram of the simulated structural force of the creative structure Attachment 2: Test and analysis diagram of the simulated structural force of the conventional structure. Attachment 3: The schematic diagram of the conditions under which the front fork structure is subjected to a forward force and the comparison and analysis of the simulated stress conditions in Annexes 1 and 2. [Description of main component symbols] 1 0 · · · · Handle 1 1 0 · · · Through hole _1 2 · · · · Fork pipe fixing part 13, 14 · Through slot 2 0 · · · · Vertical pipe 4 0 · · · · Handle 4 2 · · · · Central perforation 1 1 · · · · Shoulder body 1 2 0 · · · Perforation 130, 140 · Through channel 3 0 · · · · Upper fork tube 4 1 · · · Shoulder 4 3 · · · · Fork tube fixing part

M273514

Page 12

Claims (1)

M273514 Five 'application for patent scope 1. A kind of structure including a front part of the handle part standard, and the shoulder part and the last fixed part of the shoulder body are provided with a front fork shoulder structure between the front fork handle The connected formation of which is provided with zero holes and two through-perforations of the inner ring side peripheral surface; the weight-reducing effect is provided with a perforation at the two ends of the body at the center of the handle and shoulder body, and It is provided on the main special part to connect the handle and the channel in the shoulder, and the sideways through the front body of the vehicle is provided with a beveled side pipe for fixing the fork pipe. The improved structure from shoulder to fork shoulder is formed by the main part and the fork tube fixing part. The perforation is used to set the vertical tube button to form a shoulder downward. The fixed parts are connected. The tube assembly is connected. A self-perforated ring is formed on the peripheral surface of the fork pipe and the through-hole is formed with two horizontally penetrating through-holes. Two grooves are formed through the inner ring. The shape of the shoulder grooves makes it possible to Reducing the stem shoulder, ... the size and weight of the structure, the weight reduction effect to form a front portion of a bicycle modified structure. Θ 2. According to the improved structure of the shoulder of a bicycle fork with a weight-reducing effect described in item 1 of the scope of the patent application, wherein the handle is connected to any of the extensions-^ A recess is provided at the upper end or lower end of the shoulder body A hole slot is provided, and the inner wall of the other #fixing part is connected with the connecting part as a through hole, and a through hole is formed on the wall part of the outer periphery of the handle (connected with the shoulder body), and another The side shoulders are also provided with hollow holes and through holes; and the through holes provided in the wall portion need to be lower than the hollow holes provided in the shoulder portion according to the strength of the fork pipe. The height of the tank or the same height as the hollowed out tank Page 13 M273514 V. _ Patent scope 3. There is a transverse groove according to the front fork shoulder of the vehicle. According to 2 / in the patent scope of the patent claim, Ergoo self-improves the structure, which can be divided between the connecting portion and the shoulder on both sides. Furthermore, a rib is provided between the two horizontal channels to enhance the strength of the shoulder structure, and to achieve the effect of reducing the weight of the shoulder structure of the fork. Work 4. The improved structure of the front and shoulders of a bicycle with weight-reducing effect according to item 1 or 2 or 3 of the scope of the patent application, wherein the slot or channel of the shoulder can be integrally formed by die-casting and forging. Use a drilling method to shape the person. Page 14 ~ --- U