TWM591949U - Improved single-chamber shock absorption front fork structure of bicycle - Google Patents

Abstract

An improved structure of a bicycle single-gun shock-absorbing front fork, comprising a sleeve fixed to the axis of a square shaft, an internal key of a vertical tube combined with a sleeve and a bottom assembled with a vertical tube seat, and the interior of the sleeve is sleeved to the square shaft with a needle roller sleeve interval On the shaft, a bearing is locked to the top of the square shaft. The inner hole of the bearing can be penetrated by a screw. After the screw passes through the travel limit ring and the spring, an adjustment nut is sleeved on the travel limit ring and the top Compress the spring and adjust the nut to connect to the spring fixing seat. The screw penetrates the spring fixing seat and locks the anti-loosening nut. The spring fixing seat is located in the vertical tube. The square shaft is embedded with wear-resistant plates on all four sides. The casing is also resistant The grinding material must maintain assembly accuracy, wear resistance, and long life. The screw must adjust the softness and hardness of the shock absorber, and the stroke limit ring must limit the telescopic stroke range. The air chamber in the vertical pipe has an air-tight shock absorber buffer effect.

Description

Improved structure of bicycle single gun shock-absorbing front fork

This creation provides a technical field of bicycles, in particular, it provides an improved structure of a bicycle single-shot shock-absorbing front fork. The wear-resistant materials on both sides of the needle sliding sleeve can maintain the assembly accuracy for a longer time, and the shock absorption can be adjusted to be soft and hard. Degree and limit the scope of telescopic travel, the air chamber has air-tight shock-absorbing buffer effect.

Press, refer to the application patent case No. 96127344 "Shock absorber structure of bicycle front fork". Its main bicycle can rotate the rotating member when the bicycle is on a generally flat road section, so that when the front wheel of the bicycle is impacted, it can pass through the shock absorber assembly With the elastic member to withstand and buffer the force transmitted by the front wheels. When ascending the uphill road, rotating the rotating part, the shock-absorbing component and the elastic part will not provide a buffering effect, and the user will not need to spend more effort to step on the bicycle. Therefore, it can only choose between shock absorber and non-shock absorber, and cannot adjust the softness of shock absorber.

The application number No. 96211816 is a new type of patent for the "sliding guide device of steering tube shock absorber", which only corresponds to the shape of the sliding portion of the central shaft guide rod through the sliding bushing set to correspond to each other, which can avoid such as In the prior art, there is a problem of shaking due to the gap between the pipe fittings. It does not adjust the shock absorber soft Hardness design.

Application No. 97213029, a new type of patent for the "Sliding Bushing Set of Front Fork Steering Tube Shock Absorber". Although the bushing is made of wear-resistant plastic material, it has nothing to do with the balls, and the use of balls has also created new ones to be overcome. Question, the case is also just talking about bushings.

Application No. 100204562 New patent for "Bike Front Fork Suspension Device", which takes longer time to move from the second position to the first position by the first tube unit than the first tube unit moves from the first position It takes a long time to reach the second position, and this design feature can increase the riding comfort. The effect and advantage of adjusting the friction damping force can be produced by adjusting the screwing length between the threaded section of the second pipe body and the screw to adjust the biasing force of the main elastic member. However, the three rows of steel balls in point contact have insufficient support accuracy and stability. There is no way to adjust the linkage, or it needs a lot of disassembly to adjust.

Application No. 101203912 New patent for "Roller Axial Sliding Front Fork Suspension Device", which uses a first groove recessed on the fixed shaft in the longitudinal axis direction, and a second groove provided on the inner peripheral wall of the inner sleeve to slide The piece is a circular roller body installed in the first and second grooves. There is nothing else.

The application No. 101225438 is a new patent for "Linear Sliding Device of Front Fork Shock Absorber". The ball bushing set is not fixed to the steering tube. Therefore, the ball bushing set can be moved relative to the inner guide bar. It can also move linearly relative to the outer steering tube.

Application No. 106202015 "Bike riser for bicycle The new patent of "Cushioning and Shock Absorbing Structure", the reaction force of the front wheel is absorbed in sections by the first spring and the second spring. The downward pressure of the bicycle handlebar is absorbed in sections by the first spring and the second spring, the riser and the polygonal section of the sleeve are combined, and the transmission is reliable.

Therefore, how to develop a more ideal and practical innovative structure in response to the problems of the above-mentioned conventional structure is what consumers are eagerly expecting, and it is also the goal and direction of the relevant industry to work hard to develop breakthroughs.

In view of this, the creator has many years of experience in the manufacturing development and design of related products. In view of the above goals, after detailed design and careful evaluation, he finally has a practical original creation.

The main purpose of this creation is to provide an improved structure for a bicycle single-shot shock-absorbing front fork. The wear-resistant materials on both sides of the needle sliding sleeve can maintain the assembly accuracy for a longer period of time. The degree of shock-absorbing softness and rigidity can be adjusted and the range of telescopic travel can be adjusted. The room has air-tight shock-absorbing buffer effect.

To achieve the above purpose, this creation provides an improved structure of a bicycle single-shot shock-absorbing front fork, which includes: a hole above the lower fork of a module and a bottom end of a shock absorber structure are tightly fixed and combined to form a bicycle front fork Among them, the shock absorber structure includes a fixed shaft end on the sleeve as a fixed end, the movable end includes a fixed tube inside the vertical tube and a bottom group connected to the vertical tube seat, the inside of the tube is sleeved to the square with a needle roller sliding sleeve interval On the shaft axis, a bearing is locked to the top of the square shaft. The inner hole of the bearing can be penetrated by a screw. After the screw passes through the travel limit ring and the spring, an adjustment nut is sleeved on the travel limit ring and Top pressure spring, The adjusting nut is connected to the spring fixing seat, the screw penetrates the spring fixing seat and a locking nut is locked at the end, the two ends of the spring fixing seat are respectively fixed in the vertical pipe by a snap spring, and the vertical pipe and the casing are combined by a key , Grooves are embedded on the four sides of the square axis, wear-resistant sheets are embedded, the sleeve is also made of wear-resistant material to maintain assembly accuracy, wear resistance, and long life. Stroke range, the air chamber formed in the vertical pipe has a considerable degree of air-tight shock absorption effect.

Regarding the techniques, methods and functions used in this creation, I will give a preferred embodiment and detailed descriptions in conjunction with the drawings. I believe that the above-mentioned purposes, structures and features of this creation can be obtained from an in-depth and specific understanding .

1‧‧‧Bike front fork

10‧‧‧Module fork

11‧‧‧ hole

20‧‧‧Shock absorber structure

21‧‧‧Combined column

31‧‧‧Sleeve

32‧‧‧Square axis

321‧‧‧groove

322‧‧‧ Second air chamber

33‧‧‧Wearable tablets

34‧‧‧The third snap spring

40‧‧‧standpipe

41‧‧‧First keyway

42‧‧‧Right tube sleeve

43‧‧‧First snap spring

44‧‧‧ First air chamber

50‧‧‧Casing

51‧‧‧Second key slot

52‧‧‧key

53‧‧‧Inner hole

60‧‧‧Needle sliding sleeve

61‧‧‧Retainer

62‧‧‧Needle

70‧‧‧seat

701‧‧‧Air control hole

71‧‧‧Inner hole

72‧‧‧screw

721‧‧‧Tool set interface

73‧‧‧Travel limit circle

74‧‧‧Spring

75‧‧‧Adjusting nut

76‧‧‧Spring fixing seat

761‧‧‧Second snap spring

77‧‧‧Lock nut

80‧‧‧Dust cover

A‧‧‧Fixed end

B‧‧‧Activity

The first figure is a three-dimensional schematic view of the bicycle front fork according to an embodiment of the present invention.

The second figure is a perspective sectional view of the movable end of one embodiment of the present creation.

The third figure is a perspective sectional view of the fixed end of one embodiment of the present creation.

The fourth figure is a plan sectional view of the structure of the shock absorber according to an embodiment of the present invention.

The fifth figure is a cross-sectional view of the socket connection between the fixed end and the movable end of one embodiment of the present creation.

The sixth figure is a three-dimensional exploded view of the bicycle front fork according to an embodiment of the present invention.

The seventh figure is a three-dimensional exploded schematic view of the shock absorber structure of one embodiment of the present creation.

The eighth picture is the bicycle front fork of one embodiment of this creation implemented to the bicycle Three-dimensional schematic.

This creation is to provide a designer of an improved structure of a bicycle single-shot shock-absorbing front fork.

In order for your reviewing committee to have a better understanding and understanding of the purpose, features and functions of this creation, we hereby cooperate with the implementation mode and the detailed description as follows:

As shown in the first to eighth figures, the present invention provides an improved structure of a bicycle single-gun shock-absorbing front fork, which includes: a module with a hole 11 above the fork 10, and a shock absorber structure 20 forming a combination at the bottom The column 21, the coupling column 21 and the hole 11 have to be tightly fixed and combined to form a bicycle front fork 1; characterized in that the shock absorber structure 20 includes a fixed end (A) and a movable end (B) , The fixed end (A) is a sleeve 31 to fix a shaft axis 32; the movable end (B) includes a vertical tube 40 with a number of first key grooves 41, a set of tubes 50 with a number of second key grooves 51 The sleeve 50 is inserted into the stand pipe 40 to limit the first snap spring 43, and the first and second key grooves 41 and 51 are corresponded to each other, and the sleeve 50 and the stand pipe 40 are fixed by a number key 52. The bottom end of the vertical tube 40 is connected to a vertical tube sleeve 42. The inside of the sleeve is sleeved on the square axis 32 with a needle roller sleeve 60 spaced therebetween. A bearing 70 is locked and fixed to the square axis 32 at the top, the inner hole 71 of the bearing 70 can be penetrated by a screw 72, after the screw 72 passes through the sleeve travel limit ring 73 and the spring 74, a The adjusting nut 75 is sleeved on the stroke limiting ring 73 and presses the spring 74. The adjusting nut 75 is connected to a spring fixing seat 76. The screw 72 penetrates the spring fixing seat 76 and locks a lock screw at the end. The cap 77, the two ends of the spring fixing seat 76 are respectively fixed in the vertical pipe 40 with a second snap spring 761, the square shaft axis 32 is provided with grooves 321 on four sides, and a plurality of wear-resistant plates 33 are embedded, and the sleeve 50 is also In order to maintain the assembly accuracy, wear resistance, and long life of the wear-resistant material, the screw 72 must adjust the softness and hardness of the shock absorber, and the stroke limit ring 73 must limit the telescopic stroke range, and the first air chamber 44 is formed in the stand pipe 40 , And the number of airflow control holes 701 provided on the aforementioned bearing 70 has a considerable degree of airtight shock-absorbing cushioning effect.

The improved structure of the bicycle single-shot shock-absorbing front fork, wherein the square shaft axis 32 is fixed on the sleeve 31, and the third shaft axis 32 passes through the sleeve 31, and a third snap spring 34 is used Deduction group fixed.

The improved structure of the bicycle single-shot shock-absorbing front fork, wherein the square shaft axis 32 is hollow inside to form a second air chamber 322, and a tail nut 323 is locked at the end of the square shaft axis 32 to seal the second air chamber 322 , And make the screw 72 act as a piston.

In the improved structure of the bicycle single-gun shock-absorbing front fork, a dustproof cover 80 may be provided between the sleeve 31 and the standpipe sleeve 42.

In the improved structure of the bicycle single-shot shock-absorbing front fork, the needle roller sleeve 60 includes a retainer 61 and a number of needle rollers 62.

Referring to the second figure, the screw 72 is provided with a tool assembly connection hole 721 The hand-held tool must be rotated, and the adjusting nut 75 can be driven to move up and down during the rotation to change the strength of the compression spring 74, thereby changing the softness and hardness of the shock absorber.

Referring to the third figure, the movable end (B) slides down and up when the shock absorber is shocked, and the needle 62 rotates clockwise or clockwise.

Referring to the fifth figure, the square axis 32 of the fixed end (A) is set to a square shape, the needle roller sleeve 60 sleeved on the outer periphery is also square, and the inner hole 53 of the sleeve 50 is also square and sleeved The outer circumference of the needle sleeve 60 is no problem for the sleeve 50 to slide on the square shaft axis 32. When the sleeve 50 rotates with the vertical tube 40, the square shape can also drive the square shaft axis 32 to turn.

Referring to the eighth figure, the bicycle 90 includes a handle 91, a front wheel 92, and a frame 93. The bicycle front fork 1 is provided for assembling the handle 91, the front wheel 92, and the frame 93. When the handle 91 is rotated, the front wheel 92 also follows the steering By.

It can be seen from the above that the bicycle single-shot shock-absorbing front fork improved structure created by this book is indeed the first in the industry to meet the novelty requirements of the new patent, and its comprehensive and innovative design meets the progressive requirements of the new patent. The wear-resistant materials on both sides of the needle sliding sleeve maintain assembly accuracy for a longer period of time, the degree of softness and rigidity of the shock absorber can be adjusted, and the range of telescopic stroke can be adjusted. The air chamber has an air-tight shock absorber buffer effect, which is in line with better industrial utilization.

The foregoing is a detailed description of the technical characteristics of this creation for the preferred embodiment of this creation; however, those familiar with this technology should Changes and modifications to this creation without departing from the spirit and principles of this creation, and these changes and modifications should be covered in the scope defined by the scope of the patent application as follows.

In summary, this creation provides an improved structure of a bicycle single-shot suspension front fork, which has indeed achieved all the purposes of this creation. In addition, the spatial structure of its combined structure has not been seen in similar products, nor has it been disclosed before the application. Having complied with the provisions of the Patent Law, the application was filed in accordance with the law.

10‧‧‧Module fork

31‧‧‧Sleeve

32‧‧‧Square axis

322‧‧‧ Second air chamber

33‧‧‧Wearable tablets

40‧‧‧standpipe

41‧‧‧First keyway

42‧‧‧Right tube sleeve

43‧‧‧First snap spring

44‧‧‧ First air chamber

50‧‧‧Casing

52‧‧‧key

60‧‧‧Needle sliding sleeve

70‧‧‧seat

71‧‧‧Inner hole

72‧‧‧screw

721‧‧‧Tool set interface

73‧‧‧Travel limit circle

74‧‧‧Spring

75‧‧‧Adjusting nut

76‧‧‧Spring fixing seat

761‧‧‧Second snap spring

77‧‧‧Lock nut

80‧‧‧Dust cover

A‧‧‧Fixed end

B‧‧‧Activity

Claims (5)

An improved structure of a bicycle single-gun shock-absorbing front fork, including: a module is provided with a hole above the lower fork, and a coupling post is formed at the bottom end of a shock absorber structure, and the coupling post and the hole are tightly fixed and combined to form a combination The bicycle front fork; characterized in that: the shock absorber structure includes a fixed end and a movable end, the fixed end is a sleeve to fix a shaft axis; the movable end includes a vertical tube with a first key slot, A second key slot is arranged on the outer circumference of a sleeve, and the sleeve is sleeved inside the vertical pipe to be a first snap spring limit, and after the first and second key slots correspond, the sleeve and the vertical pipe are fixed by a number key. The bottom end of the stand pipe is connected with a stand pipe sleeve, the inside of the sleeve is sleeved on the axis of the square shaft at intervals of a needle sliding sleeve, and a socket is locked and fixed to the top of the axis of the square shaft, and the socket The inner hole can be penetrated by a screw rod. After the screw rod is covered with a stroke limiting ring and a spring, an adjustment nut is sleeved on the stroke limiting ring and presses the spring. The adjustment nut is connected to a spring fixing seat. The screw penetrates the spring fixing seat and locks a locking nut at the end. The two ends of the spring fixing seat are respectively fixed in the vertical pipe with a second snap spring. The square axis has grooves on all four sides to bury the number Wear-resistant sheet, the sleeve is also made of wear-resistant material to maintain assembly accuracy, wear resistance, and long life, the screw must adjust the softness and hardness of the shock absorber, and the stroke limit ring must limit the range of telescopic stroke, formed in the vertical pipe The first air chamber, and the number of air flow control holes provided on the aforementioned bearing have a considerable degree of air-tight shock-absorbing cushioning effect. The improved structure of the bicycle single-shot shock-absorbing front fork as described in item 1 of the patent application scope, wherein the sleeve is fixed to the square shaft axis, and the square shaft axis penetrates the sleeve with a third Those who fix the buckle spring group. The improved structure of the bicycle single-shot shock-absorbing front fork as described in item 1 of the scope of the patent application, wherein the inside of the square axis is hollow to form a second air chamber, and a tail nut is locked at the end of the square axis to seal the second Air chamber, and make the screw to form a piston. According to the improved structure of the bicycle single-shot shock-absorbing front fork as described in item 1 of the patent application scope, a dust cover must be provided between the sleeve and the standpipe sleeve. The improved structure of the bicycle single-shot shock-absorbing front fork as described in item 1 of the patent application scope, wherein the needle roller sliding sleeve comprises a retainer and a number of needle rollers.

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