Shock absorption device for handlebars

Abstract

A shock absorbing device for handlebars, wherein the handlebar comprises a stem combined with a fork shaft, the stem being provided with a shaft seat and a handlebar seat, the handlebar seat being provided with a pair of clamping jaws, whereby the handlebar seat is pivotally connectable to the pivot joint of the shaft seat by means of a pivot joint arrangement, the shock absorbing device comprising at least the following: at least one extension part extending from the pivot joint toward the handlebar and thus formed integrally therewith, wherein a receiving space is formed between the extension part and the main body of the handlebar seat, and the extension part has a screw hole; at least one shock-absorbing element accommodated in the receiving space; and an adjusting piece having a screw connection portion and a rod body integrally projecting from the screw connection portion, wherein the screw connection portion is screwed into the screw hole and the rod body projects into the shock absorbing member, whereby the shock absorbing member is positioned between the main body and the screw connection portion.

Description

Field of the invention

[0001] The present invention relates to a shock absorbing device for handlebars suitable for bicycles and having a shock absorbing function to improve riding comfort. State of the art

[0002] The bicycle is a widely used vehicle. It is powered by human pedaling, without the need for electricity or gasoline, and is extremely environmentally friendly. It is ideal for use as a general or recreational vehicle. The bicycle consumes no energy and provides a sporting effect, which is why more and more people are using bicycles as a means of transportation these days. Bicycles typically use handlebars to control the direction of travel. The handlebars are connected to the bicycle's fork stem via a handlebar stem. This allows the cyclist to control the rotation of the fork stem by turning the handlebars, thereby steering the bicycle in the desired direction.

[0003] However, most conventional handlebar stems only serve to connect the handlebars and fork tube. However, in today's traffic environment, there are few completely flat roads. When a cyclist rides on uneven roads or when riding uphill on rocky roads with sloping terrain, the unevenness of the ground will cause the bicycle to shake. The shaking occurring at the front wheel is easily transmitted to the handlebars via the fork tube and handlebar stem. In mild cases, the cyclist will feel the shaking at the handlebars, which will impair their grip comfort. During long-term riding, this can easily lead to tingling in both hands. In severe cases, the cyclist will experience a reduction in the bicycle's steering ability, thus endangering cycling safety. Object of the invention

[0004] It is an object of the present invention to provide a shock absorbing device for handlebars suitable for bicycles and having a shock absorbing function to improve riding comfort.

[0005] In the present invention, the handlebar combines a stem seat and a handlebar seat with a fork stem, the handlebar seat being provided with a pair of clamping jaws for pivotal connection with the pivot joint of the stem seat, and the shock absorbing device comprises at least: at least one extension piece extending from the pivot joint toward the handlebar and thus integrally formed therewith, a receiving space being formed between the extension piece and the main body of the handlebar seat, the extension piece having a screw hole; at least one shock absorbing element accommodated in the receiving space;and an adjusting piece having a screw connection portion and a rod body integrally projecting from the screw connection portion, wherein the screw connection portion is screwed into the screw hole and the rod body projects into the shock absorbing element, whereby the shock absorbing element is positioned between the main body and the screw connection portion;

[0006] In this way, when the cyclist rides on uneven roads and the handlebar seat is shaken up and down, the forces generated by the shake can be dampened and absorbed by the contact of the handlebar seat body with the shock absorbing element, reducing the discomfort caused by the bicycle shaking on the cyclist's hands and thereby increasing comfort and cycling safety. Because the adjustment piece can be screwed into the screw hole to different depths, the load level of the shock absorbing element can be adjusted to achieve different shock-absorbing effects. Short description of the drawings Fig. 1 shows a perspective view of the structure of a first embodiment of the shock absorbing device according to the invention. Fig. 2 shows an exploded view of the structure of the first embodiment of the shock absorbing device according to the invention. Fig. 3 shows a schematic view of the structure of the first embodiment of the shock absorbing device according to the invention. Fig. 4 shows a schematic view of the structure of a second embodiment of the shock absorbing device according to the invention. Fig. 5 shows a schematic view of the structure of a third embodiment of the shock absorbing device according to the invention. Detailed description of the implementation examples

[0007] It is based on the Fig. 1 and Fig. 2, which respectively show a perspective view and an exploded view of the structure of the shock absorbing device according to the invention.In the present invention, the handlebar 11 of the bicycle combines a stem with a fork stem 12, the stem being provided with a stem seat 2 and a handlebar seat 3, the underside of the fork stem 12 being connected to the front wheel (not shown) of a bicycle, the stem seat 2 being made in one piece and being provided with a pivot joint 21 and a sleeve tube portion 22, the upper end of the fork stem 12 being enclosed by the sleeve tube portion 22, the handlebar seat 3 being made in one piece and being provided with a pair of clamping jaws 31 and a bezel portion 32, the handlebar 11 of the bicycle being enclosed by the bezel portion 32, the pair of clamping jaws 31 being pivotally connected to the pivot joint 21 by means of the pivot joint assembly 4 to enable the combination of the handlebar 11 and the fork stem 12.Furthermore, a cable positioning structure 13 is provided between the stem seat 2 and the fork stem 12. The cable positioning structure 13 is attached to the underside of the stem seat 2 and has a cable routing hole 131 located below the handlebar seat 3 for seamless connection between the inside and outside. The user can conveniently and easily insert cables through the cable routing hole 131 located below the handlebar seat 3, so most cables are not visible outside the frame. This not only prevents the problem of cable tangling and friction or damage to the cables, but also optimizes the overall appearance of the bicycle.

[0008] The shock absorption device according to the invention comprises at least one extension part 5, at least one shock absorption element 6 and an adjustment piece 7.

[0009] Here, the extension part 5 extends from the pivot joint 21 of the stem seat toward the handlebar 11 and is thus formed integrally therewith. A receiving space 51 is formed between the extension part 5 and the main body 33 of the handlebar seat 3. The extension part 5 has a screw hole 52, and a shock-absorbing element 6 is accommodated in the receiving space 51. The shock-absorbing element 6 can be a spring. The main body 33 of the handlebar seat has a gap 331, the gap 331 having a shape corresponding to that of the extension part 5.

[0010] At the same time, Fig. 3. The adjusting piece 7 has a screw connection section 71 and a rod body 72 protruding integrally from the screw connection section 71, wherein the outer diameter of the rod body 71 is smaller than the outer diameter of the screw connection section 71, so that the screw connection section 71 abuts the rod body 72 by means of a larger shoulder section 73.

[0011] In the entire assembly process, the stem seat 2 and the handlebar seat 3 are aligned and vertically combined with each other, the extension part 5 is inserted into the gap 331, a clearance 332 is maintained between the gap 331 and the outer periphery of the extension part 5, and the shock absorbing member 6 is positioned in the receiving space 51 by the adjusting piece 7, the screw connection portion 71 is screwed into the screw hole 52, and the rod body 72 protrudes into the shock absorbing member 6, whereby the shock absorbing member 6 is positioned between the main body 33 and the screw connection portion 71, the upper end of the shock absorbing member 6 abuts the lower surface of the main body 33, and the lower end of the shock absorbing member 6 abuts the upper surface of the shoulder portion 73. In the entire assembly process, the components are greatly simplified, and the assembly process is simple.

[0012] When the cyclist rides on uneven roads that cause the bicycle to shake, the fork stem 12 enclosed by the sleeve tube portion 22 of the stem seat 2 moves up and down. At this time, when the handlebar seat 3 shakes, the main body 33 of the handlebar seat abuts against the shock absorbing member 6, and the forces generated during the shaking that cause the fork stem 12 to move up and down are absorbed by the shock absorbing member 6, thereby reducing the shake of the handlebar seat 3. Therefore, no shaking or only slight shaking occurs in the handlebar 11 enclosed by the handlebar seat 3, thereby effectively reducing the discomfort caused by shaking of a vehicle body.Furthermore, the user can adjust the relative position of the adjusting piece 7 in the screw hole 52 by means of a hand tool to adjust the degree to which the shock absorbing member 6 is pressed by the shoulder portion 73 and the degree of load of the shock absorbing member 6, thus achieving different shock absorbing effects.

[0013] Furthermore, at least one damping seal 81 is provided between the stem seat 2 and the main body 33. As can be seen in the exemplary embodiment shown in the figure, the damping seal 81 is attached and positioned on the stem seat 2 and above the extension part 5. The side wall of the stem seat 2 facing the main body 33 has a recessed section 23, and the damping seal 81 has a projection 82 that extends into and is positioned in the recessed section 23. Because the projection 82 can be inserted into the recessed section 23, the damping seal 81 can be attached and positioned on the stem seat 2, thereby separating the stem seat 2 and the main body 33 from each other. The damping seal 81 serves to reduce the impact noise and the feeling of collision when the handlebar seat 3 rebounds, which helps to significantly improve the riding experience.Of course, the damping seal can also be attached and positioned on the main body.

[0014] Furthermore, the pivot joint assembly 4 includes first and second clamping pieces 41, 42 that can be combined and secured to one another, and two sealing rings 43. The outer ends of the first and second clamping pieces 41, 42 are matched to the pair of clamping jaws 31 to form a cover plate 44. Because the first and second clamping pieces 41, 42 can be combined with one another, the handlebar 11 and the fork stem 12 can be combined with one another. The two sealing rings 43 are preferably made of metal. The two sealing rings 43 made of metal reduce the friction and loss caused by the tight locking of the pivot joint assembly.

[0015] At the same time, Fig. 4, which shows a second embodiment. The extension part 5 has an extended neck portion 53 connected to the pivot joint 21, and an expanded portion 54 connected to the other end of the neck portion 53. The area of the expanded portion 54 is larger than the area of the neck portion 53, and the screw hole 52 is located in the expanded portion 54. When the stem seat 2 and the handlebar seat 3 are aligned and vertically combined, the neck portion 53 and the expanded portion 54 are arranged to not only facilitate insertion of the extension part 5 into the gap 331, but also facilitate quick alignment of the two without displacement, thereby simplifying assembly.

[0016] It will be Fig.5. Corresponding to the receiving space 51, the main body 33 of the handlebar seat 3 is provided with at least one positioning section 333 serving to position the shock-absorbing element 6. As can be seen in the exemplary embodiment shown in the figure, the positioning section 333 can be designed as a structure protruding from the main body, which can protrude into the shock-absorbing element 6 for positioning. Of course, the positioning section can also be designed as a structure recessed in the main body, which can accommodate the shock-absorbing element for positioning.

[0017] In the present invention, the handlebar combines a stem with a fork tube, the stem being provided with a stem seat and a handlebar seat, the handlebar seat being provided with a pair of clamping jaws, whereby the stem is pivotally connected to the pivot joint of the stem seat by means of a pivot joint arrangement; the shock absorbing device comprises at least one extension part, at least one shock absorbing element, and an adjusting piece, the shock absorbing element being accommodated in the receiving space formed between the extension part and the main body of the handlebar seat, the adjusting piece having a screw connection portion and a rod body integrally protruding from the screw connection portion, the screw connection portion being screwed into the screw hole, and the rod body protruding into the shock absorbing element.The shock-absorbing element is positioned between the main body and the screw connection section. When the cyclist rides on uneven roads and the fork stem is shaken up and down, the forces generated by the shaking can be dampened and absorbed by the contact of the main body of the handlebar seat with the shock-absorbing element. The adjusting piece serves to adjust the degree of stress on the shock-absorbing element, thus achieving different shock-absorbing effects.

[0018] In summary, the present invention provides an improved and practical shock-absorbing device for handlebars. The invention thus meets the requirements for a utility model application. The application is filed in accordance with the law. The technical content and features of the present invention are disclosed above. All other embodiments that a person skilled in the art can arrive at without creative effort based on the embodiments of the present invention also fall within the scope of the present invention. List of reference symbols 11 handlebars 12 Fork steerer 13 Cable positioning structure 131 Cable routing opening 2 shaft seat 21 Swivel joint 22 Sleeve tube section 23 Return section 3 Handlebar seat 31 clamping jaw 32 edging section 33 main bodies 331 gap 332 distance 333 Positioning section 4 Swivel joint arrangement 41 first clamping piece 42 second clamping piece 43 Sealing ring 44 Cover plate 5 Extension part 51 Recording Room 52 screw hole 53 Neck section 54 Extension Section 6 Shock absorption element 7 Adjustment piece 71 Screw connection section 72 rod bodies 73 shoulder section 81 Damping seal 82 lead

Claims

[1] Shock absorbing device for handlebars, wherein the handlebar comprises a stem combined with a fork shaft, the stem being provided with a shaft seat and a handlebar seat, the handlebar seat being provided with a pair of clamping jaws, whereby it can be pivotally connected to the pivot joint of the shaft seat by means of a pivot joint arrangement, the shock absorbing device comprising at least the following: at least one extension part extending from the pivot joint toward the handlebar and thus formed integrally therewith, wherein a receiving space is formed between the extension part and the main body of the handlebar seat, and the extension part has a screw hole; at least one shock-absorbing element accommodated in the receiving space; and an adjusting piece having a screw connection portion and a rod body integrally projecting from the screw connection portion, wherein the screw connection portion is screwed into the screw hole and the rod body projects into the shock absorbing member, whereby the shock absorbing member is positioned between the main body and the screw connection portion. [2] A shock absorbing device for handlebars according to claim 1, wherein the outer diameter of the rod body is smaller than the outer diameter of the screw connection portion, so that the screw connection portion abuts the rod body by means of a larger shoulder portion, the shock absorbing member abutting the shoulder portion. [3] A shock absorbing device for handlebars according to claim 1, wherein the shock absorbing member is a spring. [4] A shock absorbing device for handlebars according to claim 1, wherein at least one damping seal is provided between the shaft seat and the main body. [5] A shock absorbing device for handlebars according to claim 4, wherein the damping seal is mounted and positioned on the stem seat. [6] A shock absorbing device for handlebars according to claim 4, wherein the damping seal is attached and positioned on the main body. [7] A shock absorbing device for handlebars according to any one of claims 1 to 6, wherein the extension member has a neck portion extended and connected to the pivot joint and an extension portion connected to the other end of the neck portion, the area of the extension portion being larger than the area of the neck portion, and the screw hole being located in the extension portion. [8] A shock absorbing device for handlebars according to claim 7, wherein the main body of the handlebar seat has a gap, the gap having a shape corresponding to that of the extension part. [9] A shock absorbing device for handlebars according to claim 8, wherein there is a distance between the gap and the outer periphery of the extension part. [10] A shock absorbing device for handlebars according to any one of claims 1 to 6, wherein the pivot joint assembly comprises first and second clamping pieces which are combinable and attachable to each other, and two sealing rings, the outer ends of the first and second clamping pieces being matched to the pair of clamping jaws to form a cover plate, wherein, by virtue of the first and second clamping pieces being combinable with each other, the handlebar and the fork tube are combinable with each other. [11] A shock absorbing device for handlebars according to any one of claims 1 to 6, wherein, corresponding to the receiving space, the main body of the handlebar seat is provided with at least one positioning portion for positioning the shock absorbing member. [12] A shock absorbing device for handlebars according to claim 11, wherein the positioning portion is formed as a structure projecting from the main body and projecting into the shock absorbing member for positioning. [13] A shock absorbing device for handlebars according to claim 11, wherein the positioning portion is formed as a structure recessed in the main body, which receives the shock absorbing member for positioning.

Images