TWM543825U - Angle adjustable bicycle shock absorbing device - Google Patents

Description

Adjustable angle bicycle shock absorber

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

Generally, a bicycle having a front suspension function is installed on at least one front suspension device on an inverted Y-shaped front fork, so that when a front wheel is vibrated due to road surface smashing, the front suspension device can be transmitted through the front suspension device. Achieve the purpose of front wheel suspension and buffering (for example, Taiwan certificate number No. M526977, 525317, 522173 and other patent cases).

In addition, as shown in FIG. 1 , a bicycle having a front suspension function includes a main frame 1 , a front fork unit 2 pivotally connected to the main frame 1 , and a front fork unit 2 mounted to the front fork unit 2 . The front suspension unit 3 includes a vehicle head tube 101. The front fork unit 2 includes an upper tube 201 disposed on the front tube 101 and a lower fork member 202 connected to the bottom of the upper tube 201. And a link member 203 pivoted in front of the lower fork member 202 and having an inverted L shape, the link member 203 is mounted with a front wheel 4. The front suspension device 3 is connected between the lower fork member 202 and the top of the link member 203, and mainly uses a spring 301 to generate a buffering effect.

When the front front wheel 4 vibrates due to the road surface, the link member 203 is interlocked with respect to the lower fork member 202, and the top end of the link member 203 is caused to be pivoted. The approach to the top end of the lower fork member 202 is approached, and at this time, the cushioning action can be achieved by the elastic force of the spring 301.

When the vibration force is eliminated, the spring force of the spring 301 can be utilized to cause the link member 203 to pivot in a reverse direction relative to the lower fork member 202.

Although the front suspension device 3 can generate a shock absorber function, since the tip end of the link member 203 is a swing of a circular arc with respect to the lower fork member 202 at the moment of vibration, the The spring 301 is driven to be upwardly arched, and therefore, the vibration force cannot be accurately transmitted and corresponds to the axial direction of the spring 301, and the generated shock absorbing effect is affected.

Accordingly, it is an object of the present invention to provide a bicycle shock absorber having an adjustable angle that produces a better shock absorbing cushioning effect.

Therefore, the bicycle of the present invention has an adjustable angle, the bicycle further includes a main frame and a front fork unit pivotally connected to the main frame, the main frame includes a front tube unit, and the front fork unit includes a shaft An upper tube disposed on the first tube of the vehicle, a lower fork member connected to the upper tube, and a link member pivotally connected to the lower fork member, the link member being located on a side of the lower fork member in a front direction, The shock absorber is mounted between the lower fork member and the link member. The shock absorber includes a buffer unit and a pivot joint. The buffer unit extends along an axis and has a first end and an edge. The axis is opposite to the second end of the first end, the first end is connected to the upper tube and the lower fork, the second end has an end surface, and the end is a recessed portion, a pivot portion disposed in the recess portion and extending along a center line perpendicular to the axis, and a concave curved surface surrounding the center line and formed at an inner end of the recess portion The pivot joint is connected to the top of the connecting rod member, and has a pivoting portion disposed along the center line and rotatably pivoting the pivoting portion, and a pivoting shaft surrounding the center line and having an outward convex arc shape a pivoting surface rotatably attached to the concave curved surface, the link member driving the pivot joint in a direction of pivoting relative to the buffer unit, restricting a rearward direction opposite to the front direction or Pivoting in the forward direction, when the link member drives the pivot joint to pivot in the rear direction relative to the buffer unit, the distance between the lower fork member and the top end of the link member becomes smaller, When the link member drives the pivot joint to pivot forward relative to the buffer unit, the distance between the lower fork member and the tip end of the link member becomes large.

The utility model has the advantages that the pivoting surface of the pivot joint is rotatably attached to the concave curved surface of the buffer unit, and the pivot joint can pivot relative to the buffer unit when vibration is generated. And the vibration force transmitted to the pivot joint can correspond to the axial extension direction of the buffer unit, and a better suspension effect can be achieved.

100‧‧‧Main frame

121‧‧‧second end

110‧‧ ‧ head tube

122‧‧‧ end face

200‧‧‧ front fork unit

123‧‧‧Depression

210‧‧‧Upper tube

124‧‧‧ pivotal department

220‧‧‧ lower fork

125‧‧‧ concave curved surface

230‧‧‧Connecting parts

13‧‧‧Flexible parts

300‧‧‧ front wheel

L1‧‧‧ center line

10‧‧‧buffer unit

20‧‧‧ pivot joint

L‧‧‧ axis

21‧‧‧ pivoting department

11‧‧‧ first kit

22‧‧‧ pivoting surface

111‧‧‧ first end

F‧‧‧Forehead

12‧‧‧ second kit

R‧‧‧post direction

Other features and effects of the present invention will be clearly shown in the embodiments with reference to the drawings, wherein: FIG. 1 is a plan view of a bicycle having a front suspension function; FIG. 2 is an adjustable angle of the present invention. A perspective installation diagram of an embodiment of a bicycle suspension device; 3 is a partially enlarged perspective view of the embodiment; FIG. 4 is a perspective exploded view of the embodiment; FIG. 5 is a partial cross-sectional side view of the embodiment; FIG. Fig. 7 is a schematic view showing the operation of one of the suspension states of the embodiment.

Referring to FIG. 2 to FIG. 4 , an embodiment of the bicycle adjustable suspension device of the present invention further includes a main frame 100 and a front fork unit 200 pivotally connected to the main frame 100 , the main frame The first fork unit 200 includes a lower tube 210 disposed on the front tube 110, a lower fork member 220 coupled to the upper tube 210, and a pivotal connection to the lower fork member 220. A link member 230 and a front wheel 300 are mounted to the link member 230. The link member 230 is located on a side of the lower fork member 220 along a front direction F (ie, a normal traveling direction of the bicycle), and the shock absorber is mounted between the lower fork member 220 and the link member 230. The device includes a buffer unit 10 and a pivot joint 20.

Referring to FIG. 5 and FIG. 6, the buffer unit 10 extends along an axis L, and has a first sleeve 11 and a second sleeve 12 and an edge of the first sleeve 11 along the axis L. The axis L is disposed and mounted to the elastic member 13 between the first set 11 and the second set 12. The first set 11 has a hollow tubular shape and has a first end 111 connected to the upper tube 210 and the lower fork 220.

The second set 12 is hollow tubular, and the second set 12 and the first set 11 are slidable along the axis L and are internally jacketed (the second set 12 of the embodiment is sleeved along the axis L at the first The sleeve 11 is externally) and has a second end 121 opposite to the first end 111. The second end 121 has an end surface 122 perpendicular to the axis L, and a recess 122 is formed by the end surface 122 toward the first end 111. a recessed portion 123 is formed in the recessed portion 123, and a pivoting portion 124 disposed in the recessed portion 123 and extending along a center line L1 perpendicular to the axis L and surrounding the center line L1 and formed in the recess The concave curved surface 125 at the inner end of the portion 123. The pivoting portion 124 of this embodiment has a hole shape.

Referring to FIG. 5 and FIG. 6, the pivot joint 20 is connected to the top of the link member 230, and has a pivoting portion 21 disposed along the center line L1 and rotatably pivoting the pivoting portion 124. A pivoting surface 22 surrounding the center line L1 and having an outwardly convex arc shape, the pivoting surface 22 is rotatably attached to the concave curved surface 125. And the link member 230 drives the pivoting joint 20 to pivot relative to the buffer unit 10, and restricts the pivoting direction toward the rear direction R opposite to the front direction F or toward the front direction F. The pivoting portion 21 of the present embodiment has a shaft shape.

When the front wheel 300 vibrates due to road surface flaws, the link member 230 is linked to the lower fork member 220 to generate a swing, and the top end of the link member 230 is generated relative to the top end of the lower fork member 220. Approaching, at this time, the pivot joint 20 pivots relative to the buffer unit 10 toward the rear direction R, and the distance between the lower fork member 220 and the top end of the link member 230 becomes smaller, and the buffer unit 10 Produced by the rotation of the link member 230 The force component generates a compressive force corresponding to the axis L of the buffer unit 10 such that the second sleeve 12 slides relative to the first sleeve 11 along the axis L, and the spring 13 is compressed and released. With the elasticity, the cushioning effect can be achieved (see Figure 7).

When the vibration force is eliminated, the link member 230 drives the pivot joint 20 to swing relative to the buffer unit 10 toward the front direction F, and between the lower fork member 220 and the top end of the link member 230. When the distance becomes larger, the state of FIG. 5 and FIG. 6 can be restored.

Therefore, by using the adjustable angle bicycle shock absorber of the present invention, the following effects can be produced:

1. The present invention is compared with the front suspension device of the existing bicycle. In the condition that the top end of the link member 230 and the top end of the lower fork member 220 are at the same distance, the present invention is because of the pivoting surface of the pivot joint 20. The action of the concave curved surface 125 on the inner side of the end surface 122 of the second end 121 can make the variable stroke of the buffer unit 10 larger, and the shock absorbing effect is better.

2. The pivoting surface 22 of the pivot joint 20 and the inner concave curved surface 125 are hidden inside the end surface 122 of the second end 121, which is not only beautiful, but also moisture and dust are less likely to penetrate. Between the pivoting surface 22 and the concave curved surface 125, the pivot joint 20 and the buffer unit 10 can be smoothly pivoted, and the buffer unit 10 can be operated normally.

In summary, the bicycle shock absorber of the adjustable angle of the present invention utilizes the cooperation of the buffer unit 10 and the pivot joint 20 to not only generate a shock absorber buffer. It can produce better shock absorber buffer effect and can achieve the purpose of this new type. Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

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.

200‧‧‧ front fork unit

220‧‧‧ lower fork

230‧‧‧Connecting parts

10‧‧‧buffer unit

L‧‧‧ axis

11‧‧‧ first kit

111‧‧‧ first end

12‧‧‧ second kit

121‧‧‧second end

122‧‧‧ end face

123‧‧‧Depression

124‧‧‧ pivotal department

125‧‧‧ concave curved surface

13‧‧‧Flexible parts

L1‧‧‧ center line

20‧‧‧ pivot joint

21‧‧‧ pivoting department

22‧‧‧ pivoting surface

F‧‧‧Forehead

R‧‧‧post direction

Claims (2)

An adjustable angle bicycle suspension device, the bicycle further includes a main frame and a front fork unit pivotally connected to the main frame, the main frame includes a front tube, and the front fork unit includes a shaft disposed thereon An upper tube of the first tube of the vehicle, a lower fork member connected to the upper tube, and a connecting rod member pivotally connected to the lower fork member, the connecting rod member is located on a side of the lower fork member in a front direction, the shock absorber The device is mounted between the lower fork member and the link member, the shock absorber comprising: a buffer unit extending along an axis and having a first end and a second opposite the first end along the axis The first end is connected to the upper tube and the lower fork, and the second end has an end surface, a recessed portion recessed from the end surface toward the first end, and a recess is disposed in the recess And a pivoting portion extending along a center line perpendicular to the axis and a concave curved surface surrounding the center line and formed at an inner end of the recessed portion; and a pivot joint connected to the top of the connecting rod member And having a pivoting portion disposed along the center line and rotatably pivoting the pivoting portion and surrounding the center line and externally An arc-shaped pivoting surface rotatably attached to the concave curved surface, the connecting rod member driving the pivoting joint to pivot relative to the buffering unit, the restriction is opposite to the front a pivoting direction of the direction or toward the front direction, the link member driving the pivot joint relative to the buffer unit to pivot in the rear direction, between the lower fork member and the top end of the link member When the distance is reduced, when the link member drives the pivot joint to pivot forward relative to the buffer unit, the distance between the lower fork member and the tip end of the link member becomes larger. The adjustable angle bicycle suspension device of claim 1, wherein the buffer unit further has a first sleeve, a second sleeve disposed along a side of the first sleeve along the axis, and a second An elastic member disposed on the axis and mounted between the first sleeve and the second sleeve, the first sleeve and the second sleeve being slidable along the axis and being provided with an inner jacket, the first end being disposed on the first sleeve The second end is disposed in the second kit.