TWM245149U - Lightweight improvement for shoulder rack of front fork - Google Patents

Description

M245149 V. Creative Instructions (1) [Technical Field to which the New Type belongs] This creative system is structured before the bicycle and has a pointer to lighten the shoulder fork of the fork. More comments and @ 之 ， especially [prior art] as in the first, second, and third pictures, the familiar ·-riser positioning hole ⑴), for bicycle handlebars; the center is set to the shoulders (12) with a slightly lower diagonal extension, Shoulder: wear, and in which, positioning holes 两侧 on both sides '' for the front rod (⑷ through part of the structure of the bottom 2 of the front 2 stenciled, the shoulder (⑴ purpose, but the shoulder (12) section shows " Door: the phenomenon that the weight of the light shoulder frame is large and concentrated on the shoulders; there is a shield with an increase in the amount of stress and a quantified stress plus Gan Ming, which stands for lightness. The rigid shoulders cannot be matched with the rigid shoulders [New content] New technical problems to be solved ... < 1 Sexuality and ΐ = To simultaneously solve the light weight of the front and back shoulders in the conventional technology, the rigid structure Office = $ 足 的 问题 ° H #The use of reinforcing materials can achieve the purpose of the knotter 1 < rigidity, but this method is not within the scope of this case. This case is to improve the structure of the above-mentioned new types of problems to solve the problem. Technical means: Zong μ: Lightweight improvement of the front and shoulder brackets. This fork shoulder bracket has a standpipe ^ σ. A shoulder disposed an open end of each fork lever given σ 'μ-based radical 74 is axial through the structure to enabling the shoulder section sealing

Page 5 M245149 V. Creation Instructions (2) Closed hollow circle shape. The efficacy of the new control compared to the prior art:

In terms of lightweight performance, the shoulder shoulder I = was previously described in the previous background, and the weight of the fork shoulder bracket before this case was 92g. The 7 cases in this case are better than the conventional shoulder stand. In terms of structural strength (rigidity), the amount of deformation of the known shoulder frame is 〇, 〇j43_, while the amount of deformation of the shoulder frame in this case is 00995mm. The shape of this case is set on the conventional shoulder stand. The structural strength (rigidity) is better than that of the conventional shoulder stand. In terms of structural stress, the stress value of the conventional shoulder stand is 0.32kg / m.r2, and the shoulder stand in this case is 014kg / mnr2. In this case, the stress value of the shoulder rack is smaller than that of the conventional shoulder rack, and the force # ^ 1 $ ", this 仏 & said the knife of the sword is better, can withstand heavy weight I, pressure, torque, safety Improve the performance. —Into f 'The design of this case can indeed achieve the efficiency of weight reduction, rigidity and safety improvement of the shoulder frame at the same time. J 戌 and [implementation mode] As shown in the fourth figure, the fork shoulder frame had a standpipe before this creation. Positioning part Gm: The standing pipe of the bicycle handlebar of the standing ring structure. ^ Both sides of the legislative positioning part (21) are slightly downwardly extending shoulders. The February part (22) has one front and one open end. The fork rod positioning portion (23) is also a hollow vertical mounting structure for the front rod and the rod (2 4) to pass through. ", Figures 4-7. This work creates a structure that penetrates the shoulder frame to make the shoulder (Heart-face position m '::: Jinhuazhe is the two ends of the shoulder (22) penetrating the riser position Q 2 1) and then fixed > you stand r ^ 9, the position邛 (23), so in the riser positioning part

ΜZ4Μ4 ^

(21) Through holes (211) and (231) are formed on the inner wall and the wall surface of the front rod positioning portion (23). Lu and Wu knew that by analyzing the strong skin (rigidity) of the structure, they called for the prediction of the amount of geometric deformation and the internal stress of the two T-shirts to be applied to the external load when the load was applied. Whether the stress is more than ^ 彳 degree design, to avoid the risk of damage and fracture when using the production port due to improper design of the product structure.

In order to demonstrate the effect of this creation, we will perform structural strength (rigidity) analysis and stress analysis of this creation and the previous technology. The data described below are the reference values for comparison between customary and this case, and are not conditions that limit the scope or implementation of the patent application in this case. First of all, in terms of lightweight performance, the front fork shoulder frame (such as the first picture, hereinafter referred to as the conventional shoulder frame) described in the previous background has a weight of about 1328, while the front fork shoulder frame (hereinafter referred to as the fourth image in the present case) Shoulder case in this case), its weight is 92g. The lightweight performance of this case is better than the conventional shoulder stand. In terms of structural strength (rigidity), the larger the amount of deformation under the same conditions, the weaker the structural strength (rigidity). The deformation amount of the conventional shoulder frame is 0.014 3ππη, while the deformation amount of the shoulder frame in this case is 00095min. this

The deformation of the shoulder rack is smaller than that of the conventional shoulder rack, so the structural strength (rigidity) performance is better than that of the conventional shoulder rack. In terms of structural stress, if the most widely used and mature Finite Element Analysis is the main framework, the response of a single element to external forces, such as the internal stress and deformation, is discussed. The larger the stress value is, the more obvious the stress concentration phenomenon is.

Page 7 M245149

V. Creative Instructions (4) Poor Loss of 0.14kg / mm The result shows that the conventional shoulder rack has high stress, and the ancient = ^ shoulder phenomenon, the transmission of force is not good. Mostly focused on Γί, the transmission of force is better, but the case of :::: value should be stronger than Γ, and the security is improved. In view of the above, the design of this case is indeed feasible and the efficiency of safety improvement. Although this case is based on "Hua, Gang: Mingmen, but those who are proficient in this skill can not deviate from the spirit and norms of this case; = different forms of change. The above-exemplified embodiments are only used to limit the scope of this case. For example, various modifications or changes that do not violate the spirit of the case = ^ are all M245149 schematic illustrations of the patent application for this case. [Schematic description] The first image is a three-dimensional appearance of a conventional shoulder stand. The second figure is a plan view of a conventional shoulder stand. The third figure is a structure view of a shoulder section of a conventional shoulder stand. The fourth picture is the three-dimensional appearance of this creative shoulder stand. The fifth figure is a top plan view of this creative shoulder stand. The sixth picture is a front plan view of the shoulder frame of this creation. The seventh picture is the structure diagram of the shoulder section of this creative shoulder stand. [Symbol description] Riser positioning part (2 1) Shoulder part (22) Fork rod positioning part (2 3) Fork rod (24) Through hole (211) (231)

Claims (1)

'、、 Apply for a patent- "-' '. Γ A lightweight and improved front and shoulder bracket, this fork shoulder bracket has _ 立 & > ffr ^ [17 定 杨 A Both sides are extended shoulders Each of the open ends of the shoulders is provided with a front rod F ′, which is characterized in that: 忒 the shoulders are axially through structures, and the cross-section of the shoulders is closed and hollow. 2 · According to item 1 of the scope of the patent application, the weight reduction of the shoulder frame is improved. ′ In this case, the shoulder section has a closed hollow circular shape. 3. According to the light weight improvement of the previous shoulder frame described in item 1 of the scope of patent application, one end of the shoulder portion penetrates the front rod positioning portion, and a through hole is formed in the wall surface of the fork rod positioning portion. 4. According to the lightening improvement of the front fork shoulder frame described in item 1 of the scope of patent application, one end of the shoulder portion penetrates the riser positioning portion, and a through hole is formed in the wall surface of the riser positioning portion. 5 · According to the quantitative improvement of the shoulder bracket previously described in item 1 of the scope of the patent application, where both ends of the shoulder pass through the riser positioning portion and the front & fork | rod positioning portion, so the riser positioning A through hole is formed on the wall surface of the part and the front pole positioning part. ^ Page 10