TWM610848U - Shock absorber structure of seat tube - Google Patents

Abstract

The model relates to a seat tube shock absorber structure, which is provided to be installed between a seat tube and a pad. It includes: a multi-link group, and a first pivot point is arranged on the upper side of the multi-link group And a second pivot point, and an upper pivot point is provided close to the second pivot point, wherein the upper pivot point provides a pivot connection to the seat cushion; and the upper link extends forward with a connecting portion; Two lower pivot points are provided under the multi-link group; and a damper is arranged in the multi-link group, and the front end of the damper protrudes from the front of the multi-link group ; By pivoting the two lower pivot points of the multi-link group respectively to the two pivot points of a tube sleeve of the seat tube, the shock-absorbing effect of the seat cushion is provided accordingly.

Description

Seat tube shock absorber structure

The new model relates to the technical field of bicycles, in particular to the category of bicycle seat tube shock absorber structures.

By the way, bicycles, scooters, tricycles and other vehicles are a kind of convenient transportation or/and transportation, and use manpower or electricity as the power source, which is very environmentally friendly.

With the current roads, there are very few completely flat roads, so that when the user rides on the aforementioned vehicles and encounters rugged and uneven roads or roads with uneven terrain, the vehicle will vibrate due to the unevenness of the ground. This causes uncomfortable riding; in order to solve this problem, most bicycles are generally equipped with shock absorbers to absorb the shock force, so that the user can feel more comfortable when riding.

The shock absorbers of the aforementioned vehicles are mostly installed on the seat tube under the handle, front fork, rear fork or seat cushion. For the shock absorber currently installed on the seat tube, such as the domestic new patent announcement No. M572852 The "two-link shock-absorbing seat tube" is to install the shock-absorbing elastic element inside the seat tube, so as to provide the shock-proof effect through the elastic element.

However, the above-mentioned conventional method of installing the elastic element inside the seat tube for shock-proofing, the elastic element must have a larger stroke space to achieve the shock-proof effect, and the elastic element is covered by the seat tube, resulting in the elastic element In addition to the tightness that cannot be adjusted, if the elastic element is to be repaired or replaced, multiple disassembly and assembly procedures are required to complete, which is extremely inconvenient to use.

For this reason, in view of the problems of the aforementioned seat tube, the creator of this new type developed a new type of seat tube shock absorber structure, so the main purpose of this model is to provide a shock-absorbing effect that is extremely easy to assemble and disassemble. One is a seat tube shock absorber structure; therefore, the secondary purpose of this model is to provide a seat tube shock absorber structure that facilitates adjustment of the shock absorber hardness.

The new type of seat tube shock absorber structure achieves the above-mentioned purpose by using the following technical means: the system includes a multi-link group, and a first pivot point and a second pivot point are set above the multi-link group. , And adjacent to the second pivot point is provided with an upper pivot point, wherein the upper pivot point provides a pivotal connection to the seat cushion, and the first pivot point and the second pivot point constitute a first axis (a ); and the upper connecting rod extends forward with a connecting part; in addition, two lower pivot points are provided under the multi-link group; and a damper, which is arranged in the multi-link group, And the front end of the damper protrudes from the front of the multi-link group, the rear end is pivotally connected to the multi-link group, and the central axis (b) of the damper and the horizontal line present an acute-angle corresponding relationship; The two lower pivot points of the multi-link group are respectively pivotally connected to the two pivot points of a sleeve of the seat tube, and the two lower pivot points constitute a second axis (c), and the second axis (c) is parallel to the first axis (a), so as to provide the shock-absorbing effect of the seat cushion.

In the seat tube shock absorber structure, the multi-link group is composed of an upper link, two first side links, two second side links and the seat tube sleeve to form a four-link mechanism; The upper link is respectively provided with the first pivot point and the second pivot point at its two ends.

In the seat tube shock absorber structure, an upper pivot point and a lower pivot point are respectively provided at two ends of the first side link, and the upper pivot point is connected to the first side link of the upper link. A pivot point.

In the seat tube shock absorber structure, an upper pivot point and a lower pivot point are respectively provided at two ends of the second side link, and the upper pivot point is respectively connected to the first side of the upper link Two pivot points.

In the seat tube shock absorber structure, the front end and the rear end of the damper are respectively connected between the connecting portion of the upper link and any place of the second side link; and wherein the front end of the damper Then it protrudes outside the first side link.

In the seat tube shock absorber structure, the first side link and the second side link are set as Y-shaped links, so as to accommodate the front and rear ends of the damper penetrating or pivoting; The one side link and the second side link present a vertical state in a natural state.

In the seat tube shock absorber structure, the rear end of the damper is connected between the upper pivot point and the lower pivot point of the second side link; and the damper is 15° from the horizontal The angle of ~30° (θ1), and when the user sits on the seat cushion, the damper will deflect downwards below 2° deflection angle (θ2).

In the seat tube shock absorber structure, the connecting part of the upper link forms a hemispherical cover and a central perforation.

In the seat tube shock absorber structure, the front end of the damper is sleeved with a ball, and the ball is provided with a through hole, and the through hole allows the ball to provide a piston rod of the damper to which the ball is sleeved, And compress a spring of the damper.

In the seat tube shock absorber structure, the front end of the piston rod of the damper is provided with an adjustment pouring port and a cap for the K value of the spring.

Through the above technical means, the present invention can achieve the following effects:

1. In the present invention, the front end of the damper protrudes directly in front of the multi-link mechanism and is connected with the connecting part of the upper link to achieve a small deflection angle of the damper (approximately less than 2°) , Which means that the side force of the damper is very small, which can effectively increase the life of the damper.

2. Directly in front of the multi-link mechanism of the present invention, and each link of the multi-link group, for example: the first shaft (a), the second shaft (c), etc. and the central axis (b) of the damper It is carried out in a nearly parallel displacement mode to achieve effective use of the internal space of the multi-link mechanism and effectively reduce the generation of invalid distance (d).

3. The spring of the new type damper provides a certain value of anti-pressure, and it also contains an inflatable air pressure rod, which provides a variable value of anti-pressure, which can be adjusted according to the user's different weight.

A: Seat tube shock absorber

B: Multi-link group

1: seat tube

11: Seat tube cover

12: pivot point

2: seat cushion

3: Upper link

31: The first pivot point

32: second pivot point

33: Upper pivot point

34: Hemispherical cover

341: Center perforation

4: The first side link

41: Upper pivot point

42: Lower pivot point

5: The second side link

51: Upper pivot point

52: Lower pivot point

6: Damper

60: pivot point

61: Sphere

62: Through hole

63: Piston rod

64: spring

65: Adjust the perfusion port

66: cap

a: first axis

b: central axis

c: second axis

d: invalid distance

θ1: included angle

θ2: Deflection angle

Figure 1: This is a three-dimensional appearance view of the new type of seat tube shock absorber structure.

Figure 2: This is a plan view of the structure of the new seat tube shock absorber.

Figure 3: This is a three-dimensional exploded view of the new type of seat tube shock absorber structure.

Figure 4: This is a combined cross-sectional view of the new type of seat tube shock absorber structure.

Figure 5: This is a schematic diagram of the shock absorber action of the new seat tube shock absorber structure.

Figure 6: This is a schematic diagram of the shock absorber action of the new seat tube shock absorber structure.

Please refer to Figures 1 to 4, the present invention relates to a seat tube shock absorber structure, in which the seat tube shock absorber A is mainly provided for installation between a seat tube 1 and a seat pad 2, which includes: A multi-link group B is provided with a first pivot point 31 and a second pivot point 32 above the multi-link group B, and an upper pivot point 33 is provided close to the second pivot point 32 , Wherein the upper pivot point 33 provides pivot connection and fixes the seat cushion 2, and the first pivot point 31 and the second pivot point 32 constitute a first axis (a); and the upper link 3 forwards A connecting part extends; and a lower pivot point 42 and a lower pivot point 52 are provided below the multi-link group B; and a damping The damper 5 is arranged in the space formed by the multi-link group B, and the front end of the damper 5 protrudes in front of the multi-link group B, and the rear end of the damper 5 is Is pivotally connected to the multi-link group B, and the central axis (b) of the damper 5 and the horizontal line present an acute-angle corresponding relationship; by pivotally connecting the two lower pivot points 42 of the multi-link group B to The seat tube 1 is provided with two pivot points 12 of a sleeve 11, and the two lower pivot points 42 constitute a second axis (c), and the second axis (c) is parallel to the first axis ( a) With so many linkage units B equipped with the damper 5, the shock-absorbing effect of the seat cushion 1 can be provided accordingly.

Further, the multi-link group B is composed of an upper link 3, two first side links 4, two second side links 5 and the seat tube sleeve 11 to form a four-link mechanism; and the upper link 3 is provided with the first pivot point 31 and the second pivot point 32 at its two ends, and wherein the upper pivot point 41 and the lower pivot point 41 are respectively provided at the two ends of the first side link 4 Pivot point 42, and the upper pivot point 41 is respectively connected to the first pivot point 31 of the upper link 3; and wherein the upper pivot points are respectively provided at the two ends of the second side link 5 Point 51 and the lower pivot point 52, and connect the upper pivot point 51 to the second pivot point 32 of the upper link 3 respectively.

In addition, the front end and the rear end of the damper 5 are respectively connected between the connecting portion of the upper link 3 and the second side link 5, wherein the front end of the damper 6 protrudes from the first side link 5 4 external; wherein the first side link 4, the second side link 5 is set as a Y-shaped link, according to provide accommodation through or pivotally connected to the front and rear ends of the damper 5, that is, the rear of the damper 5 The end is connected to a pivot point 60 between the upper pivot point 51 and the lower pivot point 52 of the second side link 5, and the pivot point 60 is any of the second side link 5 For one thing, in other words, if the overall length of the joint part of the upper link 3 is short, the pivot point 60 is adjacent to the upper pivot point 51 of the second side link 5, if the joint part of the upper link 3 is as a whole If the length is longer, the pivot point 60 is adjacent to the lower pivot point 52 of the second side link 5.

Further, the connecting part of the upper link 3 forms a half-spherical cover 34 and a central through hole 341, and the front end of the damper 5 is sleeved with a ball 61, and the ball 61 is provided with a through hole 62, and the The through hole 62 allows the ball 61 to provide the front end of a piston rod 63 that is sleeved in the damper 5 to compress a spring 64 of the damper 6, and the through hole 62 is connected to the upper connecting rod 3. According to the connecting part, the damper 5 can be flexibly deflected. In addition, the front end of the piston rod 63 of the damper 5 is provided with an adjusting filling port 65 and a cap 66 for the K value of the spring 64. The adjusting filling port 65 provides deflation or filling high-pressure air, according to the use of The weight of the person can be adjusted to adjust the damping K value of the damper 5.

Therefore, the present invention provides a better solution for seat tube shock absorber A. As shown in Figures 5 and 6, it is installed between the seat tube 1 and the seat cushion 2, and the multi-link group B The first side link 4 and the second side link 5 will be vertical in the natural state, and the damper presents an angle of 15°~30° (θ1) with the horizontal, and the user sits on the seat cushion At 2 o'clock, the first axis (a), the second axis (c) of the multi-link group B, and the central axis (b) of the damper 5 are moved in a nearly parallel displacement manner to achieve effective use The internal space of the multi-link mechanism effectively reduces the generation of ineffective distance, and the ineffective distance (d) is defined as the relationship between the vertical distance and the stroke of the damper 6. In other words, the new structure can provide a shorter vertical descending distance. Move the damper 6 for a longer stroke.

Further, in the present invention, the front end of the damper 6 protrudes directly in front of the mechanism of the multi-link group B, and is connected with the connecting portion 34 of the upper link 3, when the user sits on the seat cushion 2. , The yaw angle (θ2) of the damper 6 deflects downward about 2° or less, which means that the lateral force that the damper 6 bears is very small, which can effectively increase the life of the damper; in addition, the new type of damper 6 The spring 64 is provided to provide a certain value of anti-pressure, and it also includes an inflatable air pressure rod 60. By deflating or inflating the user, the adjustable perfusion port 65 can provide a variable value of anti-pressure, which can be made according to the user's different weight. Adjustment.

To sum up, this new model is about a "seat tube shock absorber structure", and its structure has not been seen in books or publicly used. It is in compliance with the requirements of a patent application. I sincerely ask Jun Bureau to approve the patent as soon as possible. ； For those who need to be clarified, the above are the specific embodiments of the patent application and the technical principles used. If the concept of the patent application is changed, the resulting function still does not exceed the specification and drawings. All the spirits covered should be stated within the scope of this patent application.

A: Seat tube shock absorber

B: Multi-link group

1: seat tube

11: Seat tube cover

12: pivot point

2: seat cushion

3: Upper link

31: The first pivot point

32: second pivot point

33: Upper pivot point

34: Hemispherical cover

4: The first side link

41: Upper pivot point

42: Lower pivot point

5: The second side link

51: Upper pivot point

52: Lower pivot point

6: Damper

65: Adjust the perfusion port

66: cap

d: invalid distance

Claims (10)

A seat tube shock absorber structure is provided to be installed between a seat tube and a cushion. It includes: a multi-link group, on which a first pivot point and a first pivot point are arranged on the upper side of the multi-link group There are two pivot points, and an upper pivot point is provided close to the second pivot point, wherein the upper pivot point provides a pivot connection to the seat cushion, and the first pivot point and the second pivot point constitute a first pivot point A shaft; and the upper link extends forward with a connecting part; and two lower pivot points are provided below the multi-link group; and a damper, which is arranged in the multi-link group , And the front end of the damper protrudes from the front of the multi-link group, the rear end is pivotally connected to the multi-link group, and the central axis of the damper and the horizontal line present an acute corresponding relationship; The two lower pivot points of the rod assembly are respectively pivotally connected to the two pivot points of a sleeve of the seat tube, and the two lower pivot points constitute a second axis, and the second axis is parallel to the first axis. Axle, thereby providing the cushion's shock-absorbing effect. According to claim 1, the seat tube shock absorber structure, wherein the multi-link group is composed of an upper link, two first side links, two second side links and the seat tube sleeve to form a four-link mechanism ; And wherein the upper connecting rod is respectively provided with the first pivot point and the second pivot point at its two ends. According to claim 2, the seat tube shock absorber structure, wherein two ends of the first side link are respectively provided with an upper pivot point and a lower pivot point, and the upper pivot point is connected to the upper pivot point respectively. The first pivot point of the connecting rod. According to claim 2, the seat tube shock absorber structure, wherein two ends of the second side link are respectively provided with an upper pivot point and a lower pivot point, and the upper pivot point is connected to the upper pivot point respectively. The second pivot point of the connecting rod. According to claim 2, the seat tube shock absorber structure, wherein the front end and the rear end of the damper are respectively connected between the connecting part of the upper link and any place of the second side link; and wherein the The front end of the damper protrudes outside the first side link. According to claim 2, the seat tube shock absorber structure, wherein the first side link and the second side link are Y-shaped links, so as to accommodate the front and rear ends of the damper through or pivotally connected; In addition, the first side link and the second side link present a vertical state in a natural state. According to claim 2, the seat tube shock absorber structure, wherein the rear end of the damper is connected between the upper pivot point and the lower pivot point of the second side link; and the damper is connected to The horizontal presents an included angle of 15°~30°, and when a user sits on the seat cushion, the damper deflects downward to a deflection angle of less than 2°. According to claim 5, the seat tube shock absorber structure, wherein the connecting part of the upper link forms a hemispherical cover and a central perforation. For the seat tube shock absorber structure of claim 8, wherein the front end of the damper is sleeved with a sphere, and the sphere is provided with a through hole, and the through hole allows the sphere to provide the setting of the damper to which the sphere is sleeved. A piston rod and compress a spring provided in the damper. According to claim 9, the seat tube shock absorber structure, wherein the front end of the piston rod of the damper is provided with an adjusting pouring port and a cap for adjusting the K value of the spring.

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