TWM543823U - Bicycle shock absorbing device - Google Patents

Description

Bicycle shock absorber

The present invention relates to a bicycle accessory, and more particularly to a bicycle suspension device.

In order to ride comfort and safety, a general bicycle is provided with a shock absorber. For example, a rear suspension device can be disposed between a main frame and a rear fork unit, so that a rear wheel is smashed by the road surface. When the shock occurs, the rear shock absorber can achieve the purpose of rear wheel suspension and cushioning.

In the case of a bicycle having a rear suspension suspension (TW Certificate No. I291426), it is installed between a front tripod body and a rear tripod body pivotally connected to the front tripod body. There is a shock absorber that uses a gas pressure rod and is relatively expensive.

Another type of bicycle suspension device has a superior rubber installed on a rear fork. When a rear wheel is vibrated due to road surface flaws, the superior rubber is used to resist a tube of a main frame. It can achieve the purpose of rear wheel suspension and buffering. However, this design utilizing the superior force gel to generate the shock absorber buffer cannot easily adjust the cushioning elasticity according to the user's needs. To adjust the cushioning elasticity, only the advantages of different hardness can be removed. Glue is time consuming and labor intruding. Therefore, adjusting the cushioning elasticity is not easy to achieve.

Therefore, the object of the present invention is to provide a bicycle suspension device which is low in cost and can easily adjust cushioning elasticity.

Therefore, the bicycle shock absorber of the present invention further includes a main frame and a rear fork unit pivotally connected to the main frame, the main frame including a tube, a first tube and at least one connected to the seat tube a rear tube between the first tube and the rear tube, the rear suspension device is mounted on the rear fork unit, the rear suspension device includes a positioning seat, a cushioning member and an adjusting member, the positioning seat extends along an axis, and Mounted on the rear fork unit and opposite to the seat tube, the cushioning member is coupled to the positioning seat and is resilient to the seat tube and extends along the axis and has an abutting surface intersecting the axis, the adjustment The piece can be sleeved on the positioning seat and the outside of the cushioning element along the axis, and has an end portion opposite to the seat tube, and a variable distance is formed between the end portion and the abutting surface.

The function of the present invention is that the adjusting member can be sleeved on the positioning seat and the outside of the cushioning member along the axis, and the variable distance is formed between the end portion and the abutting surface, and the operation is performed. The adjusting member can change the variable distance, and can achieve the purpose of adjusting the buffering elastic force of the rear shock absorber, and the overall structure is simple, the manufacturing assembly is easy, the cost is low, and the adjustment operation is quite easy.

100‧‧‧ rear shock absorber

22‧‧‧ outer surface

10‧‧‧ Positioning Block

23‧‧‧ recessed hole

L‧‧‧ axis

30‧‧‧Adjustment

11‧‧‧ outer perimeter

31‧‧‧ Inner torus

12‧‧‧ inner circumference

32‧‧‧Threaded Department

13‧‧‧ bottom

33‧‧‧End

14‧‧‧ inside side

D‧‧‧Variable distance

141‧‧‧Bumps

40‧‧‧Locking parts

15‧‧‧External thread

200‧‧‧Main frame

16‧‧‧Installation holes

210‧‧‧ seat tube

17‧‧‧ scale

220‧‧ ‧ car head tube

18‧‧ ‧ room

230‧‧‧cross tube

20‧‧‧ cushioning element

240‧‧‧

21‧‧‧Resistance

300‧‧‧ rear fork unit

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a perspective view of an embodiment of the bicycle shock absorber of the present invention; FIG. 2 is a schematic view of FIG. 3 is a perspective exploded view of the embodiment; FIG. 4 is an incomplete cross-sectional view of the embodiment; FIG. 5 is a schematic cross-sectional view of one of the suspension states of the embodiment. And FIG. 6 is a schematic diagram of buffer elastic adjustment of one embodiment.

Referring to FIG. 1 to FIG. 4 , in a first embodiment of the bicycle shock absorber 100 of the present invention, the bicycle further includes a main frame 200 and a rear fork unit 300 pivotally connected to the main frame 200 , the main frame 200 . The utility model comprises a tube 210, a first tube 220 and a horizontal tube 230 connected between the seat tube 210 and the front tube 220. The seat tube 210 has abutting block 240, and the rear shock absorber 100 is mounted thereon The rear fork unit 300 includes a positioning base 10, a cushioning member 20, an adjusting member 30, and a locking member 40 for locking the positioning base 10 to the rear fork unit 300.

The positioning base 10 is mounted to the rear fork unit 300 through the locking member 40 and is opposite to the abutting block 240 of the seat tube 210. The positioning base 10 has a cylindrical shape and extends along an axis L, and has an outer peripheral surface 11 surrounding the axis L, an inner peripheral surface 12 opposite to the outer peripheral surface 11, a perpendicular to the axis L, and is coupled thereto. The bottom of one end of the outer peripheral surface 11 a surface 13 , an inner side surface 14 opposite to the bottom surface 13 and intersecting the inner peripheral surface 12 , a male screw portion 15 disposed on the outer peripheral surface 11 , a mounting hole 16 recessed from the bottom surface 13 , and a mounting hole 16 a scale 17 disposed on the outer peripheral surface 11 , the inner peripheral surface 12 and the inner side surface 14 together define a chamber 18 having a projection disposed along the axis L and projecting toward the chamber 16 141, the mounting hole 16 extends from the bottom surface 13 to the bump 141, and the mounting hole 16 is eccentrically disposed with respect to the axis L in this embodiment.

The cushioning element 20 has a hollow cylindrical shape and is made of a superior adhesive material, is connected to the positioning seat 10 and can be elastically abutted against the abutting block 240 of the seat tube 210, and extends along the axis L, and has a vertical intersecting axis. The abutting surface 21 of the L, an outer surface 22 extending around the axis L and extending from the periphery of the abutting surface 21, and a recess 23 opposite to the abutting surface 21 for nesting the bump 141.

The adjusting member 30 is sleeved on the outer side of the positioning member 10 and the cushioning member 20 along the axis L. The adjusting member 30 has a hollow cylindrical shape and has an inner annular surface 31 and a setting around the axis L. The inner ring surface 31 can be screwed to the internal thread portion 32 of the external thread portion 15 and an end portion 33 intersecting one end of the inner annular surface 31 and opposing the abutting block 240 of the seat tube 210, the end A variable distance d is formed between the portion 33 and the abutting surface 21.

The locking member 40 is rotatably passed through the rear fork unit 300 and screwed to the mounting hole 16 , and the positioning base 10 can be locked to the rear fork unit 300 .

As shown in FIG. 1 , FIG. 2 and FIG. 4 , when the rear shock absorber 100 of the present invention is mounted on the rear fork unit 300 with respect to the seat tube 210 , in a normal state (for example, when riding on a flat road surface) Between the outer surface 22 of the cushioning member 20 and the inner annular surface 31 of the adjusting member 30, a gap 50 is formed which allows the cushioning member 20 to elastically deform in the radial direction, and the abutting surface 21 and the end portion 33 There is this variable distance d between.

As shown in FIG. 5, when the road surface is vibrated, the rear fork unit 300 is rotated relative to the main frame 200, and the cushioning member 20 of the rear suspension device 100 is directed toward the seat tube 210. When the resisting block 240 is impacted, the cushioning member 20 can be made by using a gap 50 originally existing between the outer surface 22 of the cushioning member 20 and the inner annular surface 31 of the adjusting member 30, and the cushioning member 20 has a hollow cylindrical shape. The elastic deformation occurs in the radial direction, and the variable distance d between the abutting surface 21 and the end portion 33 becomes small or even disappears, and the material characteristics of the cushioning member 20 can be used for buffering and shock absorbing purposes.

Further, as shown in FIG. 6, when the user whose shape changes greatly or changes differently, the operator only needs to rotate the adjusting member 30, and the female screw portion 32 is screwed to the male screw portion 15 of the positioning seat 10, that is, The variable distance d between the abutting surface 21 and the end portion 33 can be adjusted. The larger the variable distance d, the larger the amount of deformation of the cushioning member 20 and the greater the shock force can be absorbed. Therefore, the present invention can easily adjust the cushioning elasticity according to the user's needs, and the setting of the scale 17 (see FIG. 3) allows the user to easily see the adjustment amount.

It is worth mentioning that, by using the mounting hole 16 of the positioning seat 10 to be eccentrically disposed with respect to the axis L, when the positioning seat 10 is rotated, the positioning seat 10 can rotate the locking member 40 as a center of rotation. And the eccentric rotation of the cushioning member 20 and the adjusting member 30 relative to the seat tube 210 can be adjusted, so that the blocking surface 21 can be accurately aligned with the resisting block 240 to avoid manufacturing components and components. With the error, it can not produce a better buffer effect.

In summary, the overall structure of the present invention is simple, and the operation of adjusting the cushioning elasticity is quite easy, and it is not necessary to replace the excellent rubber with different hardness, so the adjustment operation is quite fast.

In summary, the bicycle suspension device of the present invention has a simple overall structure, is easy to manufacture, and can produce the effect of adjusting the cushioning elasticity, and can truly achieve the purpose of the present invention.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

100‧‧‧ rear shock absorber

10‧‧‧ Positioning Block

L‧‧‧ axis

11‧‧‧ outer perimeter

13‧‧‧ bottom

15‧‧‧External thread

16‧‧‧Installation holes

17‧‧‧ scale

20‧‧‧ cushioning element

21‧‧‧Resistance

22‧‧‧ outer surface

30‧‧‧Adjustment

31‧‧‧ Inner torus

32‧‧‧Threaded Department

33‧‧‧End

40‧‧‧Locking parts

200‧‧‧Main frame

210‧‧‧ seat tube

240‧‧‧

300‧‧‧ rear fork unit

Claims (6)

A bicycle suspension device, the bicycle further comprising a main frame and a rear fork unit pivotally connected to the main frame, the main frame comprising a tube, a first tube and at least one connected to the seat tube and the vehicle a cross tube between the first tube, the rear shock absorber is mounted on the rear fork unit, the rear shock absorber includes: a positioning seat extending along an axis and mounted to the rear fork unit and opposite to the seat tube; a cushioning member coupled to the positioning seat and resilient to the seat tube and extending along the axis and having an abutting surface intersecting the axis; and an adjusting member axially sleeved on the axis The positioning seat is external to the cushioning member and has an end portion opposite to the seat tube, and the end portion forms a variable distance from the abutting surface. The bicycle suspension device according to claim 1, wherein the positioning seat has a cylindrical shape and has an outer peripheral surface surrounding the axis and an externally threaded portion disposed on the outer peripheral surface, the adjusting member being a hollow cylinder And having an inner annular surface surrounding the axis and an internal threaded portion disposed on the inner annular surface and screwable to the externally threaded portion. The bicycle shock absorber according to claim 1, wherein the cushioning member has a hollow cylindrical shape and is made of a superior rubber material, and has an outer surface surrounding the axis, and a surface is formed between the outer surface and the inner annular surface. The cushioning member is allowed to generate an elastically deformed gap in the radial direction. The bicycle suspension device according to claim 1, wherein the positioning seat has an outer peripheral surface surrounding the axis, a bottom surface perpendicular to the axis and engaging one end of the outer peripheral surface, and a recessed from the bottom surface toward the inner portion Mounting hole, the The mounting hole is eccentrically disposed with respect to the axis, and the rear suspension device further includes a locking member that can lock the positioning seat to the rear fork unit, and the locking member is locked in the mounting hole, and the positioning seat can be The locking member is a center of rotation, and the damper member and the adjusting member are eccentrically rotated relative to the seat tube. The bicycle suspension device according to claim 2, wherein the positioning seat further has a scale disposed on the outer peripheral surface. The bicycle suspension device according to claim 1, wherein the positioning seat has a cylindrical shape and has an outer peripheral surface surrounding the axis, an inner peripheral surface opposite to the outer peripheral surface, and an axis perpendicular to the axis a bottom surface of one end of the outer peripheral surface and an inner side opposite to the bottom surface and intersecting the inner peripheral surface, the inner peripheral surface and the inner side surface together define a chamber having an axis along the axis and The bump member protrudes toward the cavity, and the cushioning member further has a recessed hole opposite to the abutting surface for nesting the bump.