KR102195093B1 - Front suspension fork for bicycle - Google Patents

Abstract

The present invention relates to a bicycle suspension fork, and more particularly, to a bicycle front suspension fork provided with a damper adjuster inside the head tube.
There is provided a damper adjuster in which a damper control is directed toward a lower side of the bearing member while the bearing member is configured above the inside of the head tube constituting the bicycle frame,
The damper adjuster includes a damper cylinder that enters and exits the head tube, and a shift rod that enters and exits the damper cylinder, and on the upper side of the shift rod; With the load head member including the fixing body configured, the fixing body is penetrated above the shaft member and fastened by a fixing means, and a front fork is coupled to the lower side of the damper cylinder, and the damper cylinder and shift rod including the front fork The compressed fluid is stored inside; A key groove is formed in a cover member configured in the damper cylinder, and a slide key entering and leaving the key groove of the cover member is fixedly coupled to the load head member so that the damper cylinder and the load head member are rotated together; With a piston configured at a lower end of the shift rod and disposed inside a damper cylinder, the piston; A bicycle front suspension fork having a damper adjusting means provided, wherein the damper adjuster rotates inside the head tube and a damper adjusting action is performed together.

Description

Bicycle front suspension fork {FRONT SUSPENSION FORK FOR BICYCLE}

The present invention relates to a bicycle suspension fork, and more particularly, to a bicycle front suspension fork provided with a damper adjuster inside the head tube.

In general, a bicycle front suspension fork is configured to face both sides of a bicycle front wheel to induce external shock attenuation and shock buffering of a bicycle front wheel, thereby improving the riding comfort of the bicycle and securing the grip of the driving wheel.

Typically, a conventional bicycle suspension fork is disposed on both sides of the front wheel of a bicycle while being fixed to both ends of the crown 20 branching from the steering tube 10 of the suspension fork 1 as illustrated in FIG. 16 of the accompanying drawings. In this regard, the compression suspension fork 60 on one side is an air spring using the elastic force of the compressed air of the coil spring 64 or the sealed air chamber 65 according to the external impact (the "resilient force using the expansion force of compressed air" or less air A compression suspension fork 60 that is compressed or elongated using the elastic force of (referred to as a spring) is configured, and the damper suspension fork 50 on the other side is a damper that controls and regulates the compression damper action and rebound damper action according to the external impact. While the suspension fork 50 is configured, the compression suspension fork 60 and the damper suspension fork 50 are fixedly connected with the arch connection member 40 to form a pair of suspension forks 1. .

In the suspension fork 1 configured as described above, the compression suspension fork 60 and the damper suspension fork 50 have different role functions (e.g., the compression suspension fork; rapidly responds to compression or extension according to the impact of the road surface, and the damper Suspension fork; Since the opposite action to control the compression or elongation of the compression suspension to attenuate the impact of the road surface), the compression suspension fork 60 and the damper suspension fork 50 The arch connection member 40 connected in pairs is rigidly configured so that there is no unbalance between the two suspension forks 50 and 60, and the two suspension forks 50 according to different functional roles that are opposed to each other , (60) had a problem that the weight was increased due to the more robust configuration.

In addition, the coil spring 64 used in the compression suspension fork 60 has a problem in that the length change in compression and extension is limited, so that the variable amount of the suspension fork 1 is limited, and the weight of the coil spring 64 is increased. In order to solve this problem, recently, an air spring using air pressure is introduced into the air chamber 65 on the upper side of the piston 63 with the piston 63 mounted on the inner cylinder 62 of the compression suspension fork 60. Although the problem of the coil spring 64 has been supplemented, the air spring is limited to a compression or expansion action against an external shock in the function of the suspension fork, and there is a functional limitation in that it cannot perform the function of a damper action. there was.

And above all, the air spring method used as the compression suspension fork is limited to one independent cylinder, so that the expansion and compression of the compressed fluid are produced together, so that the compression ratio is formed in a limited closed space state of the compression suspension cylinder. As a result, when the pressure of the compressed fluid is high, the damper performance of the suspension fork decreases, and when the pressure of the compressed fluid is low, there is a problem that the compression expandability due to the external impact of the suspension fork decreases, so if you want to improve this, the size of the compression suspension fork If the configuration is large, the weight of the bicycle frame is increased.

Here, reference numeral 66 denotes an air inlet, reference numerals 51 and 61 denote the outer cylinder of the suspension fork 1, and reference numeral 55 denotes an oil chamber.

The damper suspension fork 50 is; A compression damper means 53 and a rebound damper for performing a compression damper function according to the external impact of the suspension fork 1 by directing the fluid flow control of oil through the damper suspension fork 50 and the inner cylinder 52 as a medium. In each of the two control and control functions of the rebound damper means (54) for performing the action are provided, the compression damper means (53); This function is mainly used to reduce the energy loss that brightens the pedals when driving on a road that is even on the road or when driving on a hill (up wheel) because the road surface is paved, and when driving on a hill, it is compressed. It is preferable to drive the damper means 53 in a blocked (locked out) state, and the damper adjustment lever 30 of the compression damper means 53 control control function is provided on the upper part of the damper suspension fork 50 so that the bicycle is running. It is possible to arbitrarily adjust the compression damper action.

On the other hand, the rebound damper means 54; The damper suspension fork 50 is compressed, expands, and expands according to a normal external shock during bicycle driving on a driving road with unpaved road surfaces, thereby creating an external shock damper function for bicycle driving. As for the control control of the rebound damper means 54, since the rebound damper action is controlled by the damper adjusting body 31 provided under the suspension fork 50, it is impossible to arbitrarily control the rebound damper action during bicycle driving. There was this.

And above all, the compression damper means 53 and the rebound damper means 54 are composed of a complex control and control means to produce a complex configuration, and the configuration of the damper suspension fork 50 is complicated and repair and maintenance according to failure Management is difficult, and there is a problem in that the variable length of damper adjustment is limited, and when the variable length of the damper adjustment is to be extended, the length of the damper suspension fork is greatly extended, resulting in a significant increase in weight compared to the level required to reduce the weight of the bicycle. There is this.

In addition, in the conventional suspension fork 1, the damper action is produced by the rebound damper means 54 according to the external impact, whereas the compression damper means 53 has a simple elastic force action according to the external impact. There is a problem in that the damper control efficiency is low according to the configuration of the detailed damper control and height control control.

Therefore, the present invention is directed to solve the above problems,

Conventional suspension forks are composed of a compression suspension fork and a damper suspension fork, respectively, and the two suspension forks are configured as a pair by an arch connecting member.' In addition to solving the problem of complicated configuration and weight increase, The damper control of the bicycle front suspension fork can be easily controlled by using an adjustment lever that is simply configured on the handlebar of the bicycle, and the stiffness of the front fork is increased by storing the compressed fluid in the bicycle front fork. Its purpose is to provide a bicycle front suspension fork with excellent efficiency in which the damper control performance is improved and the height control is directed as well as the damper control means is produced with a compressed fluid and an oil fluid with a simple structure.

There is provided a damper adjuster in which a damper control is directed toward a lower side of the bearing member while the bearing member is configured above the inside of the head tube constituting the bicycle frame,

The damper adjuster includes a damper cylinder that enters and exits the head tube, and a shift rod that enters and exits the damper cylinder at an upper side of the shift rod; With the load head member including the fixing body configured, the fixing body is penetrated above the shaft member and fastened by a fixing means, and a front fork is coupled to the lower side of the damper cylinder to include the front fork and the damper cylinder and shift The compressed fluid is stored inside the rod; A key groove is formed in a cover member configured in the damper cylinder, and a slide key entering and leaving the key groove of the cover member is fixedly coupled to the load head member so that the damper cylinder and the load head member are rotated together; With a piston configured at a lower end of the shift rod and disposed inside a damper cylinder, the piston; The damper control means is provided, and the damper control unit rotates inside the head tube, and a means for controlling the damper can be provided.

The damper adjuster; An air pressure chamber and an oil pressure chamber are formed by arranging a damper control means and a piston coupled to the shift rod inside the damper cylinder, and an air damper chamber in which the compressed fluid of the air pressure chamber is stored is formed inside the shift rod, and A damper adjusting member for controlling and controlling a damper adjusting means is formed inside the shift rod, an oil chamber is formed inside the damper adjusting member in limited communication with an oil pressure chamber, and the front fork supports a bicycle front wheel. A fork head member is configured at the upper end of a pair of fork tubes, and an air tank is formed on the fork tube, and the damper cylinder is fixedly coupled to allow the compressed fluid of the air pressure chamber to enter the air damper chamber and the air tank. It is possible to provide a means for the damper action of the oil fluid and the damper control action of the oil fluid together.

While the fork head member is configured at the upper end of the pair of fork tubes supporting the front wheel of the bicycle, air injection means may be provided to the fork head member to provide a means for injecting compressed fluid into the damper controller.

While the bearing member is fixedly coupled to the upper inner side of the head tube, upper and lower bearings are disposed on the upper and lower sides of the bearing member to provide a means for coupling the damper adjuster to be rotated.

A bearing support portion having a diameter extending downward from the load head member fixedly coupled to the shift rod is configured to be pivotally coupled to the lower bearing of the shaft member, and formed in a key groove outside the bearing support portion of the load head member, and a slide key Is provided, and a plurality of key grooves vertically open are formed on the outer periphery of the cover member of the damper cylinder, and the slide key is slid in and out of the key groove of the cover member, and according to the rotation of the load head member, the damper cylinder and It can provide a means for the front forks to rotate together.

The front fork; The fork tube is fixedly coupled to form an air tank on the fork tubes, while the fork head member has tube coupling holes formed at the lower sides of the fork head member, and a bicycle front wheel is coupled to the bottom of the fork tube. The wheel fixing member to be sealed is fixedly coupled, and a coupling hole is formed in the center of the upper surface of the fork head member so that the damper cylinder is arranged in close contact, and a fixing member configured on the outer periphery of the lower side of the damper cylinder is the upper surface of the fork head member. It is fixedly coupled to the air tank, and while the compressed fluid is stored in the air tank, it is possible to provide a means for rotating the front fork together with the rotation of the damper cylinder.

The bearing member is detachably fixedly coupled to the inner side of the head tube so that bearings may be provided on the upper and lower portions of the bearing member.

The air pressure chamber and the air damper chamber of the damper regulator are in limited communication, and the air damper chamber and the air tank are communicated with each other to produce a damper action of the compressed fluid, wherein the piston includes; A damper flow passage and an outlet passage are formed, including a discharge passage through which the compressed fluid enters and exits as the upper and lower surfaces are in communication with each other, and an air valve body configured in the damper control means is disposed on the upper surface of the piston to include the discharge passage. And a check valve member is provided in the discharge passage to allow the compressed fluid to flow out in one direction, and a damper action of the compressed fluid returned from the air damper chamber to the air pressure chamber through the damper passage is provided. Can provide.

In the outlet passage on the lower surface of the piston; The air connection member on one side of the spiral air lake is fixedly coupled, and the air connection member on the other side of the air lake is fixedly coupled to the head member configured under the damper cylinder, so that the air lake is fixed to the air pressure chamber of the damper cylinder. It is possible to provide a means for entering and exiting the compressed fluid into the air damper chamber and the air tank by being arranged in a spiral that is variable up and down.

The oil pressure chamber of the damper regulator and the oil chamber formed on the inside of the damper control member are in limited communication to produce a damper function of the oil fluid, and the oil valve chamber and valve operation including an oil damper flow path at the center of the upper surface of the piston A hole is formed in the piston, and an oil outlet passage communicating with the oil pressure chamber in the oil damper passage and an oil inlet passage communicating with the oil pressure chamber in the oil valve chamber are formed respectively, and an oil injection port is formed below the oil damper passage. The oil cover is fixedly fastened to the lower surface of the piston; A check valve is mounted on the oil inlet path of the piston, and the oil valve body is fastened with a screw connection part formed on the inner circumferential surface of the oil valve chamber to restrict opening and closing of the oil damper flow path, and a damper in the valve operating hole of the piston Oil fluid of the damper regulator is characterized by the opening and closing action of the oil valve body when the valve actuator is coupled to the oil valve body and rotates the valve actuator of the damper control means while the valve actuator configured in the control means is coupled. It is possible to provide a means by which damper action is controlled and regulated.

The damper control means; With the air valve body composed of a disk-shaped flat body that slides in close contact with the upper surface of the piston, the cylinder-shaped valve actuator is configured under the air valve body, and a cylindrical assembly with a small diameter is formed on the upper surface of the air valve body, When the damper control member is coupled to rotate the damper control member, the damper action of the compressed fluid is controlled and controlled, and a means for controlling the damper control of the oil fluid can be provided.

The damper control unit is coupled to the top of the damper control member, and the control lever is fixedly coupled with the damper control unit protruding to the upper end of the shaft member and the load head member. In addition, it is possible to provide a means for directing the damper adjustment control action of the oil fluid.

While the cover member is fixedly coupled to the upper outer circumferential surface of the damper cylinder, the bushing member through which the shift rod is in close contact and sliding is fixedly coupled to the inside of the cover member, and an oil packing and an oil ring are mounted; A head member is coupled to a lower inner side of the damper cylinder, and on the lower outer periphery of the damper cylinder; The fixing member may be fixedly coupled to provide a means for being fixedly coupled with the front fork.

While the high-tensile braiding string is spirally wound on the outer circumferential surface between the upper and lower sides of the tube constituting the damper cylinder, adhesives are applied to both ends of the high-tensile braiding line to provide a means for increasing the tube pressure resistance of the damper cylinder. I can.

The inner diameter center line of the damper cylinder is formed eccentrically at a predetermined interval from the inner diameter center line of the cover member of the damper cylinder and the outer diameter center line of the shift rod, and a fastening hole is formed on the lower surface of the piston; The lower outer circumference of the piston is configured with an oil ring coupling portion having a small diameter step, and the oil ring is pressurized to the inside of the damper cylinder so as to be in close contact with each other, and on the lower surface of the piston; A disk-shaped oil ring member that is pressed in close contact with the lower end of the oil ring is disposed, and the center line of the oil ring provided on the lower side of the piston and the center line of the shift rod is formed to be eccentric with each other. As a result, while preventing the rotation of the piston according to the rotation of the shift rod, a means for interlocking the damper cylinder may be provided.

A spacer ring consisting of a fixing means and a stem coupling member are disposed on an upper surface of the upper bearing of the bearing member, and a fixing member consisting of a fixing means is fastened to the fixing body of the load head member and is tightly fixed to the top of the stem coupling member. Coupled to the stem coupling member and the fixing member fixedly coupled to the fixing body of the load head member; A disk-shaped locking member is fastened to the upper side of the fixing body of the load head member, and is fixedly coupled to the fixing member so that the fastening state of the fixing member is maintained; A through hole is formed inside the fixing body of the load head member, and a damper control unit configured in the damper control member is configured to protrude, and a control lever for rotating and adjusting the damper control member is fixedly coupled to the damper control unit. The coupling member is fixed to the load head member, and when the adjusting lever is rotated, the damper adjusting means may provide a means for controlling and adjusting.

As in the above description, the bicycle front suspension fork of the present invention; A damper adjuster that creates a front suspension function is composed of one, and is disposed inside the bicycle head tube and is pivotally coupled to rotate together with the front fork including the damper adjuster according to the operation of the bicycle handlebar. The arch connection member formed in the front suspension fork is omitted, so the configuration is simple and the weight is light.

In addition, the damper regulator of the present invention has excellent damper control performance of the damper regulator as it has the expansive elastic force of the compressed fluid including the oil fluid damper action method and the compressed fluid damper action using the fluid flow control of the compressed fluid. This simpler weight is lighter, and the height control of the damper adjuster is adjusted to improve the ride comfort when driving a bicycle, and the damper operation part of the damper adjuster is arranged on the upper side of the bicycle head tube, so that the control of the damper adjuster is very easily performed.

In addition, the compressed fluid used in the damper adjuster is stored in the front fork of the bicycle, so that the rigidity of the bicycle front fork is increased, so that the weight of the front fork can be made lighter.

1 is a perspective view illustrating an embodiment of a bicycle front suspension fork of the present invention.
FIG. 2 is a diagram illustrating an embodiment of a front suspension fork by cutting a damper adjuster and a front fork in a longitudinal direction including a head tube during the first route.
FIG. 3 is a perspective view showing the disassembled relationship of important components of the front suspension fork in FIG. 1. FIG.
Fig. 4 is a longitudinal sectional view illustrating a shift rod including a piston and a damper adjusting means in a longitudinal direction in the damper adjuster of the present invention in Fig. 3;
FIG. 5 is a longitudinal sectional view and a perspective view illustrating a damper cylinder of a damper controller in FIG. 3;
FIG. 6 is a diagram illustrating a coupling relationship between a shaft member fixedly coupled to the head tube and a load head member coupled by a fixing means during the second diagram.
FIG. 7 is a diagram illustrating in detail the fork head member of the prong fork in FIG. 2.
Fig. 8 is a perspective view illustrating a coupling relationship between the piston and the damper adjusting means of the damper adjuster in Fig. 4.
9 is a longitudinal sectional view illustrating an embodiment of the piston and damper adjusting means in the longitudinal direction in FIG. 4;
Fig. 10 is a longitudinal sectional view illustrating another embodiment of a load head member configured in the shift rod in Fig. 4;
Figure 11 is a longitudinal sectional view illustrating another embodiment of a stem for accommodating a bicycle handlebar in Figure 3.
12 is a longitudinal sectional view illustrating another embodiment of a damper cylinder, a piston, and a shift rod of the damper adjuster in FIG. 2;
13 is a longitudinal sectional view illustrating an oil ring member provided on a lower surface of a piston in FIG. 12;
FIG. 14 is a view illustrating another embodiment of the fork head member illustrated in FIG. 7 of the accompanying drawings.
15 is a view illustrating an embodiment in which the suspension fork damper adjuster of the present invention is operated.
16 is a longitudinal sectional view illustrating a conventional bicycle front suspension fork.

The bicycle front suspension fork of the present invention is provided with a damper adjuster 1000 of the front suspension fork inside the head tube 100 of the bicycle as illustrated in FIG. 1 of the attached drawing, so that the head tube 100 reciprocates inside and out. In addition, the front fork 200, which is configured to rotate from the inside of the head tube 100 to accommodate the front wheel of a bicycle, is fixedly coupled to the lower portion of the damper adjuster 1000, and a damper operation unit of the damper adjuster 1000 ( 1360) When the head tube 100 is configured as an upper side, and is fixedly coupled to the stem coupling member 310 accommodating the bicycle handle and the fixing means 320 to rotate the stem coupling member 310, the head tube ( 100) The damper adjuster 1000 is rotated from the inside and the front fork 200 is rotated together.

And while the damper control unit 1360 configured as an upper end of the damper control unit 1000 is disposed to protrude from the top of the head tube 100, the control lever 150 is fixed to the damper operation unit 1360 When the adjustment lever 150 is rotated, the damper control adjusting means of the damper adjuster 1000 is produced, so that the suspension front fork damper control adjustment of the present invention is produced.

Preferably, a bicycle top tube (100a) and a bottom tube (100b) are fixedly coupled to the outside of the head tube (100), and preferably, the front fork (200) is coupled to the damper adjuster (1000). With the fork head member 210 configured, the pipe-shaped front tubes 230 and 230 ′ are fixedly coupled to the fork head member 210, and the front tubes 230 and 230 ′ are under the front tubes 230 and 230 ′. The wheel fixing members 240 and 240 ′ to which the front wheels of the bicycle are coupled are configured, and more preferably, an air injection means 220 is provided to the fork head member 210 to include the damper controller 100 Thus, the front tubes 230 and 230 ′ are filled with compressed air, thereby further increasing the rigidity of the front tubes 230 and 230 ′.

In detail, as illustrated in FIGS. 2 to 3 of the accompanying drawings, the bearing member 110 is configured on the inner upper side of the head tube 100 constituting the bicycle frame, and the damper is configured to the bottom of the bearing member 110 There is provided a damper regulator 1000 in which control is directed,

The damper controller 1000 includes a damper cylinder 1100 that enters and exits the head tube 100, and a shift rod 1400 that enters and exits the damper cylinder 1100, and the shift rod ( 1400) on the upper side; With the load head member 1420 including the fixing body 1422 configured, the fixing body 1422 penetrates the upper side of the bearing member 110 to fix the spacer ring 330 including the stem coupling member 310 and The damper cylinder 1100 including the front fork 200 and the shift is fastened by a fixing means 300 consisting of a member 320, and a front fork 200 is coupled to the lower side of the damper cylinder 1100 The compressed fluid is stored inside the rod 1400.

Thus, the damper regulator 1000 is configured to be rotated by the upper and lower bearings 120, 120' and the fixing means 300 of the shaft member 110 while being disposed inside the head tube 100 The damper controller 1000 provides damper buffering control by the expansive elastic force of the compressed fluid, and the front fork 200 further increases its rigidity by the elastic force of the compressed fluid.

In addition, a key groove (1121a) is formed in the cover member (1120) configured in the damper cylinder (1100), and also in the bearing support (1423) configured in the load head member (1420); The slide key 1500 entering and leaving the key groove 1121a of the cover member 1120 is fixedly coupled so that the damper cylinder 1100 and the load head member 1420 rotate together.

Therefore, since the load head member 1420 and the damper cylinder 1100 configured in the shift rod 1400 are rotated together while being prevented from being rotated by the slide key 1500, the head tube 100 is configured on the upper side. When the stem coupling member 310 is rotated, the front fork 200 fixedly coupled to the damper adjuster 1000 is rotated together.

In addition, while the piston 1200 is configured at the lower end of the shift rod 1400 and disposed inside the damper cylinder 1100, the piston 1200 includes a damper adjusting member 1350 as illustrated in FIG. 4 of the accompanying drawings. ) And a damper control unit 1300 is provided, and the damper buffer control of the damper controller 1000 is directed according to the control control of the damper control unit 1300 and the shift rod 1400 The front fork 200 including the damper cylinder 1100 rotates together in the head tube 100 according to the rotation of the head tube 100.

Preferably, the damper adjuster 1000 includes a damper adjusting means 1300 and a piston 1200 to which the shift rod 1400 is coupled, as illustrated in FIG. 15 of the accompanying drawings, inside the damper cylinder 1100. With the air pressure chamber P1 formed below the piston 1200, an oil pressure chamber P2 is formed between the upper side of the piston 1200 and the cover member 1120 of the damper cylinder 1100, and the shift rod ( 1400) an air damper chamber (C1) in which the compressed fluid of the air pressure chamber (P1) is stored is formed, and inside the shift rod (1400); While the damper control member 1350 for controlling and adjusting the damper control means 1300 is configured, an oil chamber C2 which is in limited communication with the oil pressure chamber P2 is formed inside the damper control member 1350 do,

As a result, the compressed fluid is limited in and out between the air pressure chamber (P1) and the air damper chamber (C1), thereby creating a damper action of the compressed fluid, and the oil pressure between the oil pressure chamber (P2) and the oil chamber (C2). Due to the limited access to the fluid, a complex damper action between the compressed fluid and the oil fluid is achieved, in which the damper action of the oil fluid is produced together.

In addition, the front fork 200; A pair of fork tubes 230 and 230 ′ supporting the front wheel of a bicycle are configured with a fork head member 210 at the upper end of the fork tubes 230 and 230 ′, and an air tank T1, ( T1') is formed, and the fork head member 210 is provided with an air injection means 220, and the damper cylinder 1100 is fixedly coupled to the fork head member 210, and the air damper chamber C1 ) Of the compressed fluid is introduced into the air tanks T1 and T1' through the air lake 1160 arranged in the air pressure chamber P1 of the damper cylinder 1100.

Therefore, the compressed fluid stored in the air pressure chamber (P1) is limited in and out from the air damper chamber (C1) through the damper control means (1300), and the air damper chamber (C1) and the air chambers (T1), T1') Since the are communicated with each other, the compressed fluid storage capacity of the air damper chamber (C1) is further increased, so that the damper action of the compressed fluid of the damper regulator of the present invention is smoothly directed, and the fork tube 230 of the front fork 200, The stiffness of (230') is further increased by the compressed fluid.

Here, it is obvious that the fork tube of the front fork is not limited to a specific material, and various materials such as carbon, titanium, steel, reinforced plastic, bamboo, etc., including aluminum pipe, can be used.

Further preferably, a through hole 1424 is formed in the center of the fixture 1422 of the load head member 1420/1421 configured on the upper end of the shift rod 1400/1410, and the damper adjusting member 1350 The damper control unit 1360 is fixedly coupled to the upper end of the load head member 1420 and protrudes upward from the fixed body 1422 of the load head member 1420 to rotate the damper operation unit 1360, and adjust the damper. The means 1300 is controlled and controlled so that the damper action of the compressed fluid and the damper control action of the oil fluid are made together.

Hereinafter, the coupling relationship between the head tube of the front suspension fork and the damper adjuster of the present invention will be described in detail with reference to FIGS. 2 to 3 and 6 of the accompanying drawings.

As illustrated in FIGS. 2 to 3 of the accompanying drawings, the bearing member 110 is fixedly coupled to the upper inner side of the head tube 100, and upper and lower bearings are provided on the upper side and the lower side of the bearing member 110. (120), (120') are arranged,

As illustrated in FIG. 6 of the accompanying drawings, the bearing member 110 includes; The through body 111 on which the inner diameter part 112 is formed is formed, and an upper inclined surface 113 extending in diameter toward the inner diameter part 112 of the through body 111 is formed, and a space part is formed at the top. An inner diameter surface 115 is formed so that the upper bearing 120 is disposed, and a lower inclined surface 114 extending in diameter toward the lower side of the through body 111 of the bearing member 110 is formed to form the lower bearing 120 ′. ) Is disposed, a fastening hole 116 is formed from the outer peripheral surface of the through body 111 of the bearing member 110 to the inside.

Therefore, while the fixing hole 101 is formed on the upper outer circumferential surface of the head tube 100, the bearing member 110 is coupled to the fastening hole 116 of the bearing member 110 and fixed by the fixing member 130. In addition, the bearing member 110 is fixedly coupled to the inside of the head tube 100 by a coupling method that is fixed with an adhesive or the like.

Accordingly, as illustrated in FIGS. 2 to 4 of the accompanying drawings, the load head member 1420 configured at the upper end of the shift rod 1400 includes; With the bearing support portion 1423 extending in diameter to the lower side is configured, it is pivotally coupled to the lower bearing 120' of the bearing member 110, and the fixing body 1422 of the load head member 1420 is a bearing member Consisting of a spacer ring 330 and a fixing member 320 including a stem coupling member 310 in which a bicycle handle is accommodated in the fixing body 1422 while passing through the upper side of the 110 and the upper bearing 120 ′. The fixing means 300 is fixedly coupled so that the load head member 1420 is pivotally coupled to the upper and lower bearings 120 and 120 ′ of the shaft member 110.

Therefore, according to the rotation of the stem coupling member 310, the shift rod 1400 and the damper cylinder 1100 rotate together inside the head tube 100.

Here, it is obvious that the head tube is not limited to a specific material, and various materials such as carbon, titanium, steel, reinforced plastic, bamboo, etc., including aluminum pipe, can be used.

Further, in detail, as illustrated in FIG. 6 of the accompanying drawings, a spacer ring 330 and a stem coupling member 310/311 composed of the fixing means 300 on the upper surface of the upper bearing 120 of the bearing member 110 ) Is disposed, the fixing member 320 composed of the fixing means 300 is fastened to the fixing body 1422 of the load head member 1420 and is closely coupled to the upper end of the stem coupling member 310 so that the stem The coupling member 310/311 and the fixing member 320 are fixedly coupled to the fixing body 1422 of the load head member 1420.

Preferably, the disk-shaped locking member 340 is fastened to the upper side of the fixing body 1422 of the load head member, and is fixedly coupled to the fixing member 320 to maintain the fastening state of the fixing member 320, and the The adjustment lever 150 is fixedly coupled to the damper operation unit 1360 by a fixing nut 151.

Therefore, the stem coupling member 310/311 in which the bicycle handle is received is fixedly coupled to the fixture 1422 of the rod head member 1420 to which the shift rod 1400 is fixedly coupled to rotate the adjustment lever 150. Then, the damper control member 1350 and the damper control means are controlled and adjusted according to the rotation of the damper operation unit 1360.

It will be described in more detail with respect to the stem coupling member 310 accommodating a bicycle handle that is fixedly coupled to the damper regulator at the top of the head tube described above.

As illustrated in FIGS. 2 to 3 of the accompanying drawings, a through hole 312 mounted on the rod coupling portion 1420 of the shift rod 1400 on one side (right side) of the stamp coupling member 311 made of a plate material ) Is formed, and a cylindrical coupling portion 314 in which the bicycle handle is accommodated and mounted on the other side of the stamp coupling member 311 is configured, and the cylindrical coupling portion 314 at the end of the cylindrical coupling portion 314 A bicycle handle (not shown) is accommodated in a space 313 formed on the inside of the cylindrical coupling part 314 by a fastening hole 315 for clamping and fastening is formed, Will be fixed.

Hereinafter, another embodiment of the stem fixedly coupled to the damper regulator on the upper side of the head tube will be described.

As illustrated in FIG. 11 of the accompanying drawings, the stem coupling member 510 includes; With the through hole 511 formed on one side, the through hole 511 is composed of a plate material having a coupling hole 512 on the other side, and the fixing member 320 of the fixing means 300 as illustrated in FIG. 6 of the accompanying drawings. ) Penetrates through the through hole 511 of the stamp coupling member 510 and is fixedly coupled to the upper side of the fixture 1422 of the load head member 1420 by the fixing member 320.

In addition, a stem 520 in which a bicycle handle is accommodated is mounted in the coupling hole 512 of the stem coupling member 510, and a fastening member 530 is provided in a fastening portion 523 formed inside the lower portion of the stem 520. While being coupled, the stem 520 is fixedly coupled to the load head member by being closely coupled to the lower end of the stem coupling member 510.

Specifically, the stem 520; While the cylindrical body 521 having a space therein is installed, a semicircular lower assembly 522 and a semicircular upper assembly 524 are fixed to the upper side of the cylindrical body 521 by a fixing member 525 and the stem ( 520) will be constructed.

Hereinafter, the front fork of the front suspension fork of the present invention will be described in detail with reference to FIGS. 2 to 3 and 7 of the accompanying drawings.

The front fork 200 as illustrated in Figure 2 of the accompanying drawings; Tube coupling holes 213 and 213 ′ are formed on both sides of the fork head member 210 so that the fork tubes 230 and 230 ′ are fixedly coupled, and the fork tubes 230 and 230 ′ ) At the bottom, the air tanks (T1) and (T1') are sealed, and the wheel fixing member 240 to which the front wheel of the bicycle is coupled is fixedly coupled by the coupling bodies 241 and 241',

As illustrated in FIG. 7 of the accompanying drawings, a coupling hole 212 is formed in the center of the upper surface of the body 211 of the fork head member 210, and the center of the lower surface of the body 211 of the fork head member 210 An air outlet 214 communicating with the coupling hole 212 is formed, and a horizontal type open flow path 215 through which compressed fluid enters and exits each of the tube coupling holes 213 and 213' from the air outlet 214 And while the inclined tunnel passages 216, 216' are formed, on the lower surface of the fork head member 210; A cover member 218 for blocking the open passage 215 from the outside is coupled to seal the open passage 215 from the outside, and the coupling hole 211 and the tube coupling hole 213, 213' ) Communicates with each other to allow the compressed fluid to enter and exit.

Preferably, in the upper portion of the tube coupling hole 213' on one side of the fork head member 210; An air injection means 220 into which compressed air is injected is provided, and fastening holes 217 and 217' are formed outside the coupling hole 212, and a sealing part 212a is formed outside the coupling hole 212. ) Is formed to prevent the leakage of the compressed fluid when the damper cylinder 1400 is coupled to the fork head member 210 as illustrated in FIG. 15 of the accompanying drawings.

Therefore, as illustrated in FIG. 3 of the accompanying drawings, the damper cylinder 1100 is arranged in close contact with the coupling hole 212 of the fork head member 210, and the damper cylinder 1100 is fixed on the lower outer periphery. The member 1130 is fixedly coupled to the fastening holes 217 and 217' of the fork head member 210 so that the front fork 200 is fixedly coupled to the damper adjuster 1000, and the accompanying drawings As illustrated in FIG. 15, the air pressure chamber (P1) and the oil tanks (T1) and (T1') communicate with each other to allow the compressed fluid to enter and exit.

Meanwhile, another embodiment of the fork head member will be described.

FIG. 14 is a view illustrating another embodiment of the fork head member illustrated in FIG. 7 of the accompanying drawings, wherein the fork head member 400 includes; Consisting of an upper fork member 410 and a lower fork member 420, both sides of the upper fork member 410 and the lower fork member 420 are coupling members in which the fork tubes 230 and 230' are accommodated ( 430 is fixedly coupled so that the upper fork member 410 and the lower fork member 420 are configured to be spaced apart at a predetermined interval, and a coupling hole 411 is formed at the center of the upper fork member 410, The damper cylinder 1100 passes through and is closely coupled to a coupling hole 421 formed at the center of the lower fork member 420.

In addition, the upper fork member 410 and the lower fork member 420 are provided with communication members 470 and 470 ′ that are in communication with each other to allow the compressed fluid to enter and exit the lower fork member 420; Including the air inlet 423 through which the compressed fluid enters and exits, an air flow passage 424 and an outlet inlet 425, 425' are formed, and in the upper fork member 410; With the communication paths 461 and 461' formed, a fastener 413 is formed as illustrated in Fig. 14-1 in Fig. 14 to fix the fixing member 1130 of the damper cylinder 1100 It is fixedly coupled to the upper fork member 410 by a bolt.

Preferably, the coupling member 430 has cylindrical holes 430a and 430a ′ whose lower ends are open to be fixedly accommodated in the fork tubes 230 and 230, and the coupling member 430 ), a screw fastening part 433 is formed on the lower outer circumferential surface of the attached drawing as illustrated in "Fig. 14-3" in Fig. 14, and a fixing hole 434 and an air inlet are formed on the upper surface 432 of the coupling member 430. 435 is formed.

And as illustrated in "Fig. 14-2" in Fig. 14 of the accompanying drawings, fasteners 422 are formed on both sides of the lower fork member 420 so that the coupling members 430 and 430' are fixedly fastened. In addition, as illustrated in "Fig. 14-1" in Fig. 14 of the accompanying drawings, the coupling holes 412, 412' and coupling holes 414, 414' are located on both lower sides of the upper fork member 410. Is formed so that the coupling members 430 and 430 ′ are closely coupled to the coupling holes 412 and 412 ′, and the upper fork member from the inside of the coupling members 430 and 430 ′ ( The lower fork member 420 is fixedly coupled to the upper fork member 410 because the fixing members 450 and 450 ′ are fastened to the upper end of the 410.

In addition, preferably, the communication members 470 and 470' are provided on the lower surface of the upper fork member 410 and the upper surface of the lower fork member 420, wherein the lower surface of the lower fork member 420; With the air outlet 423 communicating with the coupling hole 421 of the lower fork member 420 is formed, a cover member 440 in which an open air flow path 424 is formed is formed on the lower surface of the lower fork member 420 It is fixedly coupled to the outlet port 425, 425' and the communication member 470, 470' are in communication with each other, the upper surface of the upper fork member 410, the coupling member 430, ( 430), with communication ports 415, 415', and entrances 416, 416' communicating with the inside of each formed, and are combined with covers 460, 460', and the communication path 461 , 461 is sealed, and the compressed fluid enters and exits from the coupling hole 421 of the lower fork member 420 into the coupling members 430 and 430'.

Therefore, the fork head member 400 is composed of a plate material of the upper fork member 410 and the lower fork member 420 and is configured to be spaced apart at a predetermined interval to reduce the weight of the fork head member 400, and The upper and lower fork members are made of a plate, so that manufacturing workability is simple.

Hereinafter, in the damper regulator of the present invention, an embodiment in which the shift rod and the damper cylinder are rotated together will be described in detail.

A plurality of key grooves 1121a vertically open as illustrated in FIGS. 3 and 5 of the accompanying drawings are formed on the outer periphery of the cover member 1120 configured in the damper cylinder 1100 of the damper controller 1000, and In addition, the load head member 1420 fixedly coupled to the upper surface of the shift rod 1400; As illustrated in “Fig. 4-1” in FIGS. 3 and 4 of the accompanying drawings, the bearing support unit 1423 is configured with a bearing support unit 1423 coupled to the lower bearing 120 of the bearing member 110. A number of key grooves 1423a and fixing holes 1423b are formed on the outer periphery.

Therefore, the slide key 1500 is fixedly coupled with a fixing bolt (not shown) to the keyway 1423a and the fixing hole 1423b formed in the bearing support 1423 of the load head member 1420, and the attached drawing 3 As illustrated in the figure, several slide keys 1500 are slid in and out of the key groove 1421a of the cover member 1120, whereby the load head member 1420 is rotated according to the rotation of the load head member 1420. ) Is fixedly coupled to the shift rod 1400 and the damper cylinder 1100 is rotated together.

In addition, the load head member 1420 is pivotally coupled to the upper and lower bearings 120, 120' and the fixing means 300 of the shaft member 110 of the head tube 100 as described above. When the stem coupling member 310 is rotated, the damper cylinder 1100 is rotated together.

Hereinafter, in the damper regulator of the present invention, an embodiment of the damper cylinder will be described in detail.

As illustrated in FIG. 5 of the accompanying drawings, an assembly 1111 is formed on the upper outer periphery of the cylinder tube 1110 constituting the damper cylinder 1100, so that the cover member 1120 is fixedly coupled to the cover member ( A plurality of key grooves 1121a that are vertically open are formed on the outer circumferential surface of 1120, and also on the inside of the cover member 1120; The bushing member 1122 is fixedly coupled so that the oil packing 1124 and the oil ring 1123 are mounted.

In detail, the bushing member 1122 is disposed on the upper end of the oil packing 1124 while the oil packing 1124 is mounted on the inner lower part of the cover member 1120 of the damper cylinder 1100, and the accompanying drawings As illustrated in Fig. 5-1, a fixing bolt hole 1125 in which one side of the inner circumferential surface of the cover member 1120 and one side of the outer circumferential surface of the bushing member 1122 are shared is formed, and a fixing bolt (not shown) ) Is fastened so that the bushing member 1122 is coupled to the inside of the body 1121 of the cover member.

And on the lower outer periphery of the cylinder tube (1110); With the combination body 1112 of which the diameter is expanded is configured, the fixing member 1130 coupled with the front fork 200 is fixedly coupled to the lower side of the cylinder tube 1110 so as to fix holes on both sides of the fixing member 1130 ( 1132 is formed to face each other, and also inside the lower side of the cylinder tube 1110; The head member 1140 in which the fastening hole 1141 is formed is coupled to seal the inside of the damper cylinder 1100.

Preferably, as illustrated in FIG. 15 of the accompanying drawings, on the lower surface of the piston 1200 provided inside the damper cylinder 1100: the air connection member 1161 on one side of which the spiral air lake 1160 is configured is fixedly coupled. In addition, the air connection member 1162 on the other side of the air lake 1160 is fixedly coupled to the fastening hole 1141 of the head member 1140, so that the air lake 1160 is an air pressure chamber of the damper cylinder 1100. It is arranged in a spiral that changes up and down in (P1).

Therefore, the compressed fluid enters and exits the air damper chamber (C1) and the air tanks (T1) and (T1') through the air lake (1160), and the compressed fluid flows from the air damper chamber (C1) to the air pressure chamber (P1). In the process of returning, the damper function of the compressed fluid is performed.

Further, preferably, on the outer circumferential surface between the upper coupling body 1111 and the lower coupling body 1112 of the cylinder tube 1110 of the damper cylinder 1100 as illustrated in the accompanying drawings 5; As illustrated in "Fig. 5-1" in the attached drawing 5, the high-tensile braiding line 1150 is wound in close contact with the spiral, and adhesive material is applied to both ends of the high-tensile braiding line 1150 so that the braiding line 1150 Will maintain the wound state of the.

Thereby, the damper cylinder 1100 is transformed into the outer circumferential surface according to the pressure of the compressed fluid and oil fluid formed inside the damper cylinder 1100 by a light and high tensile strength braided string wound in close contact with the outer circumferential surface of the damper cylinder 1100 It has a characteristic of increasing the pressure resistance.

Here, it is obvious that the high-tension braided line may be made of various materials such as a braided fishing line, high-tensile fiber rope, etc., which are generally used for fishing lines, including high-strength piano wires.

The configuration and damper action of the damper controller of the present invention will be described in detail as follows.

As illustrated in FIG. 15 of the accompanying drawings, inside the damper cylinder 1100; A piston 1200 is provided that restricts access to the compressed fluid to the air pressure chamber (P1) and the air damper chamber (C1) and restricts the oil fluid to enter the oil pressure chamber (P2) and the oil chamber (C2). The shift rod 1400 is fixedly coupled to the upper surface of the piston 1200 to form an air damper chamber C1, and a damper control member 1350 is fixed on the upper end of the damper control means 1300 provided to the piston 1200 The damper operation unit 1360 is fixedly coupled to the upper end of the damper control member 1350 while the oil chamber C2 is formed so as to close and slide to the upper side of the through hole 1424 of the load head member 1420 do.

Therefore, when the air damper chamber C1 is closed and the damper control unit 1360 is rotated, the damper control member 1350 and the damper control means 1300 of the damper control unit 1000 are rotated, thereby controlling the damper control.

In detail, as illustrated in FIG. 4 of the accompanying drawings, on the upper outer peripheral surface of the piston 1200; A rod fastening part 1220 is configured so that a damper adjusting means 1300 for adjusting the damper action of the oil fluid and the compressed fluid is arranged to be rotated on the inner upper surface of the rod fastening part 1220, and the damper adjusting means 1300 A variable oil chamber (C2) in which a free piston 1370 is mounted is formed inside the damper adjusting member 1350 while the coupling body 1320 is configured on the upper outer circumferential surface so that the damper adjusting member 1350 is fixedly coupled. .

Further, the damper control member 1350 on the upper side of the free piston 1370 has an entrance 1351 through which the compressed fluid enters and exits, and the damper operation unit 1360 is fixedly coupled.

Preferably, at the lower end of the damper operation part 1360, the upper end of the damper control member 1350 is blocked so as to be sealed, and a through hole 1424 formed inside the fixture 1422 of the load head member 1420 ) To prevent leakage of compressed fluid through the damper control unit body 1136 is configured, and is disposed to slide in close contact with the lower surface of the fixed body 1422 of the load head member 1420, and the damper operation unit 1360 and the damper control member The 1350 is rotated inside the shift rod 1400.

In addition, the shift rod 1400 is fixedly fastened to the rod fastening portion 1220 of the piston 1200 to form the air damper chamber C1 inside the shift rod 1400, and the damper adjusting member 1350 Is disposed, and a through hole 1424 is formed in the fixture 1422 of the load head member 1420 while the load head member 1420 is fixedly coupled to the upper side of the shift rod 1400 The damper operation unit 1360 penetrates into the sphere 1424.

Therefore, the damper operation unit 1360 is configured to protrude above the fixing body 1422 of the load head member 1420, and the damper function of the compressed fluid and the damper function of the oil fluid are combined with the rotation of the damper operation unit 1360. It has a feature made.

Preferably, an oil ring 1230 is provided on the outer periphery of the body 1210 of the piston 1200 to allow limited access of the oil fluid to the upper side of the oil ring 1230, an oil outlet passage 1219 and an oil inlet passage. With (1216) formed, a check valve (1250) is provided in the oil inflow path (1217), wherein the oil outflow path (1219) and the oil inflow path (1217) are vertically communicated with the upper surface of the piston body (1210). The flow path 1216 is formed.

Meanwhile, in the configuration of the piston and the shift rod provided in the damper cylinder of the damper regulator of the present invention, another embodiment will be described.

As illustrated in FIG. 12 of the accompanying drawings, the inner diameter center line CL1 of the damper cylinder 1100 is a predetermined distance from the inner diameter of the cover member 1120 of the damper cylinder 1100 and the outer diameter center line CL3 of the shift rod 1400 (CL1+1) is formed eccentrically, and the outer diameter center line CL2 of the piston 1200 is the center line CL4 of the rod fastening portion 1220 of the piston 1200 as illustrated in FIG. 12-2 It is formed to be eccentric at a predetermined interval CL1+1 from the center line.

And the lower outer circumference of the piston 1200 is configured with an oil ring coupling portion 1210a having a small diameter stepwise, and an oil ring 1230a pressed into the damper cylinder 1100 so as to be in close contact is coupled thereto. (1200) on the bottom; A disk-shaped oil ring member 1270 that is pressed in close contact with the lower end of the oil ring 1230a is disposed and is fixedly coupled to the fixing member 1240.

Accordingly, the center line (CL1/CL2) of the oil ring (1230a) provided to be fixed to the lower side of the piston (1200) and the center line (CL3) of the shift rod are formed to be mutually eccentric (CL1+1). The damper cylinder 1100 is interlocked with each other while the piston 1200 is prevented from rotating inside the damper cylinder 1100 according to the rotation of the 1400.

Preferably, a fastening hole (1211f) is formed on the lower surface of the piston (1200), and on the lower surface of the piston (1200); As illustrated in FIG. 13 of the accompanying drawings, a disk-shaped oil ring member 1280 having an inner cylinder 1281 fixedly coupled to the fastening hole 1211f is disposed, and the piston ( 1200) It is fixedly coupled to the lower surface, and a circular groove 1282 is formed in a circumferential shape on the outer circumferential surface of the oil ring member 1280, and is pressed to the inside of the damper cylinder 1100 on the outer circumferential surface of the oil ring member 1280. As described above, since the oil ring 1230a is fixedly disposed, the center line CL1/CL2 of the oil ring 1280 and the center line CL3 of the shift rod 1400 are mutually eccentric (CL1+1). While the rotation of the piston 1200 is prevented according to the rotation of the shift rod 1400, the damper cylinder 1100 is interlocked with each other.

In detail, as illustrated in "Fig. 12-3" in the accompanying drawings 12, an inner surface 1272 having a fixing hole 1271 coupled to the fastening hole 1211f is formed inside the oil ring member 1240 In addition, while the outer surface body 1273 to which the oil ring 1230a is coupled is configured on the outer side of the oil ring member 1270, the inner surface 1272 and the outer surface 1273 have a plurality of connectors 1274. ), and a part of the lower surface of the piston 1200 is opened.

On the other hand, another embodiment of the load head member fixedly coupled to the upper side of the shift rod will be described.

As illustrated in FIG. 10 of the accompanying drawings, a screw fastening hole 1410a is formed in the upper inner side of the body 1410 of the shift rod 1400, and a screw fastening part 1421a is formed on the outer periphery of the load head member 400. Is coupled to the screw fastening hole 1410a of the shift rod body 1410, and the bearing support member 1430 coupled to the lower bearing of the shaft member is coupled to the screw fastening portion 1420a of the load head member 1420 While still, the bearing support member 1430 is closely coupled to the upper end of the shift rod body 1410 and is fastened.

Specifically, a space portion 1423 in which the air damper chamber C1 extends is formed inside the load head member body 1421, and inside the fixture 1422 configured as an upper side of the load head member body 1421 With the through part 1424 formed, an oil sealing groove 1425 is formed on the lower surface of the fixture 1422.

Preferably, the bearing support member 1430 has a plurality of key grooves 1431 open to the outer surface of the bearing support member 1430 as illustrated in "Fig. 10-1" in Fig. 10 of the accompanying drawings. While being formed, a fixing hole 1432 is formed in the key groove 1431 so that the slide key 1500 is fixedly coupled to each of the key grooves 1431 as illustrated in FIG. 3 of the accompanying drawings.

Thereby, the load head member 1420 is coupled in a screw-fastening manner at the upper end of the shift rod body 1410 to adjust the height of the load head member 1420, and above all, the configuration of the load head member 1420 is It is simple and easy to manufacture, and preferably, the bearing support member 1430 is fastened with a locking nut method to prevent loosening and loosening of the screw fastening of the load head member 1420.

Hereinafter, a specific preferred embodiment for the damper adjustment control of the damper regulator of the present invention will be described in detail.

First, the operation of the compressed fluid damper for the damper adjustment control of the damper controller of the present invention will be described.

As illustrated in FIG. 15 of the accompanying drawings, the air pressure chamber (P1) and the air damper chamber (C1) of the damper controller 1000 are in limited communication, and the air damper chamber (C1) and the air tanks (T1), (T1') Is communicated to produce the damper action of the compressed fluid,

As illustrated in the accompanying drawings 4 and 8 to 9, the piston 1200 includes; The upper and lower surfaces are in communication with each other, including a discharge passage 1212 through which the compressed fluid enters and exits, and a damper passage 1214 and an outlet passage 1213 are formed, on the upper surface of the piston 1200; The air valve body 1310 configured in the damper control means 1300 is disposed so that the damper passage 1214 and the outflow passage 1213 including the discharge passage 1212 are limitedly opened and closed, and also in the accompanying drawing 8 As illustrated in "Fig. 8-1", a check valve 1260 that discharges the compressed fluid in one direction is provided in the discharge passage 1212.

In addition, as illustrated in FIG. 15 of the accompanying drawings, an air connection member 1161 on one side of which a spiral air lake 1160 is formed in the outlet passage 1213 on the lower surface of the piston 1200 provided inside the damper cylinder 1100 It is fixedly coupled, and the air connecting member 1162 on the other side of the air lake 1160 is coupled to the head member 1140 configured under the damper cylinder 1100, so that the air lake 1160 is connected to the damper cylinder 1100. The compressed fluid enters and exits the air damper chamber (C1) and the air tanks (T1) and (T1'), as it is arranged in a spiral shape that is variable up and down in the air pressure chamber (P1).

Accordingly, when the pressure in the air pressure chamber P1 increases according to an external shock, the damper controller 1000 of the present invention discharges the compressed fluid into the air damper chamber C1 through the discharge passage 1212 of the piston 1200. On the other hand, in the process of returning the compressed fluid from the air damper chamber C1 to the air pressure chamber P1 through the damper flow path 1214, a damper action of the compressed fluid is produced.

In addition, at this time, the air damper chamber (C1) and the air tank (T1), T1' through the outflow passage 1213 of the piston 1200 and the air lake 1160 of the damper cylinder 1100 are constantly in and out of the compressed fluid. The compressed fluid storage capacity of the air damper chamber (C1) is significantly increased.The air pressure chamber (P1) of the damper controller of the present invention has an independent compression ratio, so that the compression ratio of the damper controller is smaller. It can be used with high compressed fluid pressure.

Hereinafter, the operation of the oil fluid damper for the damper adjustment control of the damper controller of the present invention will be described.

As illustrated in FIG. 15 of the accompanying drawings, the oil pressure chamber P2 of the damper cylinder 1100 and the oil chamber C2 formed in the damper control member 1350 are in limited communication, thereby creating a damper function of the oil fluid. In,

In the center of the piston 1200, an oil valve chamber 1211b and a valve operation hole 1211 are formed including an oil damper flow path 1211d as illustrated in “Fig. 8-1” in the accompanying drawings. The piston 1200 includes an oil outlet passage 1219 communicating with the oil pressure chamber P2 on the upper surface of the piston 1200 in the oil damper passage 1211d as illustrated in FIG. 9 of the accompanying drawings, and the oil valve chamber ( In 1211b), an oil inlet passage 1217 communicating with the oil pressure chamber P2 on the upper surface of the piston 1200 is formed, and an oil inlet 1211e is formed under the oil damper passage 1211d, and the oil cover member 1240 Is fixedly fastened to the lower surface of the piston 1200).

Preferably, a check valve 1250 is mounted on the oil inlet passage 1217 of the piston 1200, and the oil inlet passage 1217 and the oil outlet passage 1219 are formed on the upper surface of the piston 1200. It communicates with the vertical flow path 1216 which is always in communication with the oil pressure chamber P2.

And with the inner circumferential surface of the oil valve chamber 1211b formed with a screw fastening portion 1211a as illustrated in Fig. 8-1 of Fig. 8, the damper adjusting means as illustrated in Fig. 9 of the attached drawing. The oil valve body 1340 of (1300) is coupled to limit the opening and closing of the oil damper flow path (1211d), and the valve operation configured in the damper control means (1300) in the valve operation hole (1211) of the piston (1200) While the sieve 1330 is provided, when the valve actuator 1330 is coupled with the oil valve body 1340 to rotate the valve actuator 1330 of the damper adjusting means 1300, the oil valve body 1340 The opening and closing action is made.

Preferably, the oil valve body 1340 as illustrated in FIG. 9 of the accompanying drawings includes; In the oil valve chamber (1211d), an oil inlet (1345) and an oil passage (1346) are formed, and in the damper actuator (1330) of the damper control means (1300); An oil passage 1311 communicating with the oil chamber C2 is formed so that the oil fluid is restricted in and out between the oil pressure chamber P2 and the oil chamber C2.

Accordingly, when the damper controller 1000 of the present invention has a contraction action of the damper controller according to an external shock, and the volume of the oil pressure chamber P2 increases, the oil inflow path 1212 and the check of the piston 1200 While oil fluid is sucked from the oil chamber C2 through the valve 1250, the oil fluid from the oil pressure chamber P1 to the oil chamber C2 through the oil outlet passage 1219 and the oil damper passage 1211d. During the process of flowing out, a damper action of the oil fluid is produced by opening and closing the oil valve body 1340.

1211c is an oil valve seat, and the valve body 1344 of the oil valve body 1340 illustrated in FIG. 8 is coupled to the oil valve body ( The degree of opening/closing of the oil fluid in the oil damper flow path 1211d by 1340 is controlled.

Hereinafter, a description will be given of a damper control means 1300 provided on the piston for controlling the damper of the compressed fluid and controlling the damper of the oil fluid.

As illustrated in FIGS. 8 to 9 of the accompanying drawings, the damper adjusting means 1300 includes; While the air valve body 1310 consisting of a disk-shaped flat body that slides in close contact with the upper surface of the piston 1200 is configured, the cylinder-shaped valve actuator 1330 is configured below the air valve body 1310, In addition, a cylindrical assembly 1320 having a small diameter is formed on the upper surface of the air valve body 1310, and the damper adjusting member 1350 is fixedly coupled as illustrated in FIG. 4 of the accompanying drawings.

Preferably, in the air valve body 1310 formed in a circumferential shape of the outer circumference of the coupling body 1320 of the damper control means 300; The damper flow path (including a plurality of discharge valve ports 1312) selectively opening and closing the discharge passage 1212 formed in the piston 1200 as illustrated in "Fig. 9-1" in the accompanying drawings 9 ( A large and small damper valve port 1314 for selectively opening and closing the 1213, and an opening 1313 for always opening the outlet passage 1214 are formed.

Thereby, the air valve body 1310 of the damper control means 1300 is rotated so that the first damper valve opening 1314a formed in the air valve body 1310 is selected in the damper flow path 1214 of the piston 1200 Then, the first discharge valve port (1312a) is selected in the discharge passage (1212), the first opening (1313a) is selected in the outlet passage (1213), the entry and exit of the compressed fluid is performed and the air valve A damper action of a gentle compressed fluid proportional to the size of the first damper valve port 1314a of the sieve 1310 is performed.

And when the second damper valve port 1314b is selected for the damper flow path 1214 of the piston 1200, the first discharge valve port 1312b is selected for the discharge flow path 1212, and the first opening ( 1313b) is selected in the outflow and inlet passage 1213 to perform an in/out action of the compressed fluid and a damper action of the compressed fluid proportional to the size of the second damper valve port 1314b of the air valve body 1310.

On the other hand, when the third damper valve port 1314c of the air valve body is selected for the damper flow path 1214 of the piston 1200, the third discharge valve port 1312c remains selected for the discharge flow path 1212. , The third opening (1313c) is selected in the outlet passage (1213), preferably, including the third damper valve opening (1314c), the third discharge valve opening (1312c) and the third opening (1313c) ) Is composed of a non-cylindrical body in which the upper and lower surfaces of the air valve body 310 are blocked, so that the air pressure chamber P1 and the air damper chamber C1 are blocked from entering the compressed fluid.

Accordingly, in the damper regulator of the present invention, the compressed fluid in the air pressure chamber P1 is blocked from being discharged to the air damper chamber C1 due to an external shock.

On the other hand, the valve actuator 1330 of the damper control means 1300 has an oil passage 1311 through which the upper and lower surfaces are penetrated, so that the oil fluid enters and exits from the oil damper chamber P2 to the oil chamber C2.

Therefore, as illustrated in FIG. 15 of the accompanying drawings, when the damper adjusting member 1350 configured in the damper adjusting means 1300 is rotated, the compressed fluid in which the air pressure chamber P1 and the air damper chamber C1 are limitedly communicated. In addition to the damper action of the oil pressure chamber (P2) and the oil tank (C2) has a characteristic that the damper action of the oil fluid in limited communication is produced.

Preferably, the oil valve body 1340 of the damper adjusting means 1300 is configured with a screw coupling part 1341 on the outer circumferential surface as illustrated in FIGS. 8 to 9 of the accompanying drawings, and the screw coupling part 1341 ) A prismatic driving part 1342 is formed on the upper side, and a valve guide part 1343 which communicates with the oil 1219 and constitutes a valve body 1344 is formed on the lower side of the screw connection part 1341. An inlet 1345 is formed on the outer circumferential surface of the valve guide 1343, and an oil passage 1346 is formed in which the inlet 1345 and the inside of the upper surface of the oil valve 1340 are vertically communicated.

In addition, preferably, the driving part 1342 of the oil valve body 1340 is provided inside the lower side of the valve actuator 1330 of the damper adjusting means 1300 as illustrated in "Fig. 9-1" in Fig. 9 of the accompanying drawings. When the valve actuator 1330 is rotated while the angular rotation hole 1331 is formed and is disposed on the driving unit 1342 of the oil valve body 1340, the oil valve body 1340 is The oil damper passage 1211d is opened and closed while being operated downward. As illustrated in FIG. 15 of the accompanying drawings, the oil fluid flowing out of the oil pressure chamber P1 flows through the oil outlet passage 1219 of the piston 1200. A damper function of the oil fluid is performed by the limited flow of oil in the oil damper passage 1211d that flows through.

Hereinafter, an embodiment in which a damper adjuster is operated by being coupled into a head tube of a bicycle front suspension fork according to the configuration and operation of the present invention will be described.

When the front fork 200 reciprocates up and down from the front wheel of the bicycle according to the condition of the road surface while driving the bicycle, the damper cylinder of the damper regulator including the front fork 200 as shown in Fig. 15 of the attached drawing A damper action is produced by the damper adjusting means 1300 of the damper regulator while the 1100 is reciprocated inside and outside the head tube 110, and as illustrated in FIGS. 1 and 3 of the accompanying drawings, When the stem coupling member 310 in which the handlebar configured in front of the bicycle head tube 100 is accommodated and mounted is rotated, the damper adjuster of the present invention including the damper cylinder 1100 and the shift rod 1400 is The front fork 200 configured at the bottom of the damper cylinder 1100 is freely rotated left and right in the center of the head tube 100 because it is rotated while being interlocked with each other from the inside.

Hereinafter, a preferred embodiment of the damper action of the present invention damper regulator according to the configuration and action of the present invention will be described.

Air injection means configured in the fork head member 210 of the front fork 200 while the oil fluid is stored in the oil damper chamber P2 and the oil chamber C2 of the damper controller as illustrated in FIG. 15 of the accompanying drawings. When the compressed fluid is injected through 220, the compressed fluid is stored in the air tanks T1 and T1' of the fork tubes 230 and 230', and air provided inside the damper cylinder 1100. The oil flows out to the air damper chamber C1 formed inside the shift rod 1400 through the lake 1160, and also acts on the pre-piston 1370 formed inside the damper control member, and the oil through the pre-piston 1370. An appropriate pressure is applied to the chamber C2.

When the compressed fluid flows into the air damper chamber (C1), the compressed fluid flows out to the air pressure chamber (P1) of the damper cylinder (110) through the damper flow path of the piston (1200), the damper cylinder by the expansive elastic action of the compressed fluid. (1100) The upward operation of the piston 1200 disposed inside is directed, and at this time, the fork tubes 230 and 230' have increased rigidity due to the expansion force of the compressed fluid.

Preferably, the air tank (T1), (T1') and the air damper chamber (C1) maintain the same pressure of the compressed fluid through the air lake (1160), more preferably the state of the no-load action of the shift rod (1400) In the damper control means 1300, the air damper chamber C1, including the air pressure chamber P1, and the air tanks T1, T1', including the air pressure chamber P1, are maintained at the same pressure.

As described above, when a compressed fluid having an appropriate pressure is formed in the air pressure chamber P1 and the air damper chamber C1 of the damper controller, the piston 1200 of the damper controller rises due to the expansion force of the compressed fluid in the air pressure chamber P1. By operating, the piston 1200 and the shift rod 1400 consisting of one body are lifted, and the head tube 100 coupled to the shift rod 1400 is raised according to the rising operation of the piston 1200 Is done.

At this time, the oil damper chamber (P2) of the damper regulator produces a compression action in which the volume contracts according to the rising operation of the piston (1200), so that the oil fluid stored in the oil damper chamber (P2) is stored in the oil chamber (C2). In other words, the pre-piston 1370 disposed in the oil chamber C2 is operated upward to increase the volume of the oil chamber C2.

When an external force (e.g., a bicycle occupant's weight load action) acts on the damper cylinder 1100 of the damper controller configured as described above, the piston 1200 is in accordance with the downward load of the head tube 100 acting on the shift rod 1400. The compressed fluid formed in the air pressure chamber P1 by lowering operation of the damper cylinder 1100 is raised to a higher pressure, and the lowering operation of the piston 1200 is stopped at an appropriate height. In maintaining the height, the smaller the lowering operation of the piston 1200 is, the better the efficiency of the damper cylinder 1100 according to the operating range of the piston 1200 is.

Preferably, the compressed fluid is stored in the air pressure chamber (P1) according to the control control of the air valve body 310 of the damper control means, and is blocked from the air damper chamber (C1) and the air tanks (T1), (T1'). , Since the air pressure chamber P1 forms an independent compressed fluid compression ratio, the pressure of the compressed fluid is formed higher in a range where the compression ratio of the compressed fluid is smaller, so that the piston 1200 descends downward of the damper cylinder 1100. The downward operation is limitedly operated depending on the compressed fluid pressure in the air pressure chamber P1 and the compression ratio in the air pressure chamber P1.

As described above, according to the lowering operation of the piston 1200, the volume of the oil damper chamber P2 is expanded to suck the oil stored in the oil chamber C2.

Hereinafter, an embodiment according to the configuration and operation of the present invention will be described in more detail as follows.

When the front suspension fork receives an external impact from the irregularities on the road surface while driving the bicycle, the shift rod 1400 and the piston 1200 including the head tube, as illustrated in FIG. 15 of the accompanying drawings, maintain their height. , The damper cylinder 1100 is operated upward toward the piston 1200 and the air pressure chamber P1 inside the damper cylinder 1100 is contracted in proportion to the external shock, so the compressed fluid stored in the air pressure chamber P1 While being pressurized, the oil damper chamber (P2) increases in volume according to the rising operation of the damper cylinder (1100) and sucks the oil stored in the oil chamber (C2).

In this way, when the compressed fluid pressure in the air pressure chamber P1 increases to a higher pressure, the piston 1200 is operated upward with the increased compressed fluid pressure, and the compressed fluid in the air pressure chamber P1 is the piston 1200 ) Through the discharge flow path of the air damper chamber (C1), the compressed fluid pressure in the air pressure chamber (P1) does not rise any more, and double this, the rising operation of the piston (1200) is stopped. The air pressure chamber (C1) is raised to a higher pressure, and air tanks (T1) and (T1') of the front tubes 230 and 230' through the outflow and inlet passage of the piston 1200 and the air lake 1160 Will be leaked.

Therefore, the compressed fluid in the air pressure chamber (P1) configured in the damper cylinder (1100) according to the external impact of the front fork (200) is distributed and stored in the air damper chamber (C1) and air tanks (T1), (T1'). Therefore, the pressure of the compressed fluid in the air pressure chamber P1 is maintained at an appropriate pressure, and the rising operation of the damper cylinder 1100 is gently absorbed.

If the air pressure chamber P1 is closed and sealed from the outside and the external shock of the front fork 200 is transmitted, the air pressure chamber P1 of the damper cylinder 1100 is A high compression ratio proportional to the rising operation is formed, and an action of suppressing the rising operation of the damper cylinder 1100 is produced, resulting in poor external shock absorption of the damper controller.

Thereafter, when the external shock of the damper regulator is removed, the height of the shift rod 1400 including the piston 1200 is maintained, while the damper cylinder 1100 has the expandability of the compressed fluid formed in the air pressure chamber P1. A descending operation that rapidly expands with an elastic force is produced, and at this time, the pressure in the air pressure chamber P1 is lowered, so that the high-pressure compressed fluid flowing out to the air damper chamber C1 is formed in the air valve body 1310 After passing through the damper action of the damper valve port, the damper action of the compressed fluid that gently rebounds and returns to the air pressure chamber P1 through the damper flow path is produced.

Preferably, the high-pressure compressed fluid stored in the air tanks (T1) and (T1') is quickly returned to the air damper chamber (C1) through the air lake (1160) and the outflow and inlet passages of the piston (1200), A damper action of the compressed fluid through the damper valve opening of the air valve body 1310 is produced.

In addition, at the same time, the oil damper chamber (P2) undergoes a compression action in which the volume is contracted, so that the oil fluid in the oil damper chamber (P2) returns to the oil damper flow path and the oil valve chamber of the oil valve body 1340 of the damper control means. During the outflow process, the oil fluid damper function is produced according to the opening and closing of the oil valve body 1340, so that the expansion and lowering operation of the damper cylinder 1100 is made smoothly and the damper buffer control of the damper controller is produced. do.

Therefore, the damper regulator of the present invention; When an external shock is applied while driving the bicycle, the rebound damper action of the compressed fluid and the fluid flow rebound damper action of the double oil are simultaneously produced, so that the external impact of the front fork 200 is quickly and gently removed, the damper control unit of the damper control means By rotating 1360, the compressed fluid flow and the rebound damper control of the oil fluid flow are performed together.

On the other hand, when the damper control unit 1360 is rotated to block the damper flow passage and the outflow passage including the discharge passage formed in the piston 1200 by the air valve body 1310 of the damper control means 1300, the front fork ( 200), the outflow of the compressed fluid from the air pressure chamber (P1) is blocked, so the compressed fluid filled in the air pressure chamber (P1) rises to a higher pressure inside the air pressure chamber (P1), Since the lowering of the piston 1200 or the raising of the damper cylinder 1100 is restricted, the compression damper action is blocked (lock-out) and the height of the damper regulator is maintained at that state.

At this time, since the oil damper flow path formed in the piston 1200 is blocked through the oil valve body 1340 of the damper adjusting means 1300, the oil fluid flowing into the oil damper chamber P2 cannot flow out to the oil chamber C2. In this way, the damper action blocking (lock-out) state of the damper regulator is more reliably maintained.

In addition, as described above, while the height of the damper regulator is maintained in that state, the damper control unit 1360 is rotated to form the piston 1200 using the air valve body 1310 of the damper control means 1300. When the discharge passage is opened, a high-pressure compressed fluid is formed in the air pressure chamber P1 of the damper cylinder 1100 and flows out to the air damper chamber C1 and the air tanks T1 and T1' through the discharge passage.

Therefore, the pressure of the compressed fluid in the air pressure chamber (P1) is lowered, and a load force (for example, when a person rides on a bicycle saddle) acting as a double shift rod (1400), the piston (1200) is the air pressure chamber ( P1) In addition to the downward operation, the height of the damper controller 1000 of the present invention is adjusted to be low.

When the height of the damper adjuster is lowered so that the bicycle head tube is adjusted to be low, external force acting on the shift rod 1400 (e.g., when leaving the bicycle saddle or when getting off the bicycle saddle) is removed, the piston 1200 ) Is reduced, and the piston 1200 and the shift rod 1400 rise to the appropriate height due to the expansion of the compressed fluid in the air pressure chamber (P1), so that the height of the damper regulator is adjusted to the set height. The head tube height is adjusted to be high, and at this time, the compressed fluid stored in the air damper chamber C1 returns to the air pressure chamber P1 as described above through the damper flow path of the piston 1200.

As described above, one embodiment by various means of the present invention has been described in detail, but the scope of the present invention is not limited to a specific embodiment, and should be interpreted by the appended claims.

In addition, it goes without saying that various modifications can be implemented without departing from the scope and spirit of the present invention, if one has acquired ordinary knowledge in this technical field.

10: steering tube 11: adjustment lever shaft
14: control lever 15: connection lever
20: crown 30: damper adjustment lever
40: arch connecting member 50: damper suspension fork
51,61 Suspension outer cylinder 52,62: Suspension inner cylinder
53: compression damper means 54: rebound damper means
100: head tube 100a: top tube
100b: bottom tube 110: shaft member
120,120': bearing 130: spacing
130, 316, 320, 450, 525, 1125, 1130, 1240: fixing member
200: front fork 210, 400: fork head member
218, 440: cover member 220: air injection means
230: front tube 240: wheel fixing material
300: fixing means 310: stem coupling member
311: stem coupling member body 320: fixing member
330: spacer ring 340: locking member
410: upper fork member 420: lower fork member
430: coupling member 440: cover member
470: communication member 520: stem
1000: damper regulator 1100: damper cylinder
1110: damper cylinder body 1120: cover member
1122: bushing member 1123, 1230: oil ring
1124: oil sealing 1140: head member
1160: connection number 1161: air connection member
1200: piston 1210: piston body
1212: discharge passage 1213: outflow passage
1214: damper flow path 1250 1260: check valve
1270, 1280: oil ring member 1300: damper control means
1310: air valve body 1320: assembly
1330: valve actuator 1340: oil valve body
1350: damper control member 1360: damper operation unit
1370: free piston 1400: shift rod
1410: shift rod body 1420: rod head member
1422: fixture 1423: bearing support
1430: bearing support member 1500: slide key

Claims (24)

There is provided a damper adjuster in which a damper control is directed toward a lower side of the bearing member while the bearing member is configured above the inside of the head tube constituting the bicycle frame,
The damper adjuster includes a damper cylinder that enters and exits the head tube, and a shift rod that enters and exits the damper cylinder, and on the upper side of the shift rod; With the load head member including the fixing body configured, the fixing body is penetrated above the shaft member and fastened by a fixing means, and a front fork is coupled to the lower side of the damper cylinder to include the front fork and the damper cylinder and shift The compressed fluid is stored inside the rod;
A key groove is formed in a cover member configured in the damper cylinder, and a slide key entering and leaving the key groove of the cover member is fixedly coupled to the load head member so that the damper cylinder and the load head member rotate together;
With a piston configured at a lower end of the shift rod and disposed inside a damper cylinder, the piston; A bicycle front suspension fork having a damper adjusting means provided, wherein the damper adjuster rotates inside the head tube and a damper adjusting action is performed together. The method of claim 1,
The damper adjuster; An oil pressure chamber is formed between the upper side of the piston and the cover member of the damper cylinder, with a damper adjusting means and a piston coupled to the shift rod disposed inside the damper cylinder to form an air pressure chamber under the piston;
An air damper chamber in which the compressed fluid of the air pressure chamber is stored is formed inside the shift rod, and further inside the shift rod; A damper control member configured to control and adjust the damper control means, and an oil chamber in limited communication with the oil pressure chamber is formed inside the damper control member;
The front fork; A fork head member is formed at the upper end of a pair of fork tubes supporting the front wheel of a bicycle, so that an air tank is formed on the fork tubes, and the damper cylinder is fixedly coupled with the fork head member provided with an air injection means. So that the compressed fluid in the air pressure chamber enters and exits the air damper chamber and the air tank;
A through hole is formed in the center of the fixing body of the load head member, and a damper control part is formed at the upper end of the damper control member, and the damper control member is configured to protrude above the fixing body of the load head member. A bicycle front suspension fork that has the characteristics of both the damper action of the compressed fluid and the damper control action of the oil fluid. The method of claim 1,
A bearing member is fixedly coupled to an upper inner side of the head tube, and upper and lower bearings are disposed on upper and lower sides of the bearing member;
The load head member is formed with a bearing support portion whose diameter is extended to the lower side of the bearing member and is rotatably coupled with the lower bearing of the bearing member, and the fixing body of the load head member is penetrated upwardly to the bearing member and the upper bearing, The rotation of the stem coupling member is characterized in that a fixing means consisting of a spacer ring and a fixing member including a stem coupling member accommodating a bicycle handle is fixedly coupled, and the rod head member is pivotally coupled to the upper and lower bearings of the shaft member. According to the shift rod and the damper cylinder is a bicycle front suspension fork having a feature that rotates together inside the head tube. The method of claim 2,
The front fork; Tube coupling holes are formed at both lower sides of the fork head member so that the fork tube is fixedly coupled, the air tank is sealed at the bottom of the fork tube, and a wheel fixing member to which the front wheel of a bicycle is coupled is fixedly coupled;
An open flow path and a tunnel through which a coupling hole is formed in the center of the upper surface of the fork head member, and an air outlet communicating with the coupling hole is formed in the center of the lower surface of the fork head member, so that the compressed fluid enters and exits each of the tube coupling holes from the air inlet. A cover member being coupled to the open passage while the passage is formed;
In the upper portion of the tube coupling hole on one side of the fork head member; An air injection means through which compressed air is injected into the fork tube, and a fastening hole is formed outside the coupling hole;
The damper cylinder is arranged in close contact with the coupling hole of the fork head member, and a fixing member configured on the lower outer circumference of the damper cylinder is fixedly coupled to the fastening hole.The air pressure chamber and the air tank are in communication with each other to compress Bicycle front suspension fork with fluid in and out. The method of claim 3
The bearing member is; A through body through which the body of the load head member penetrates is formed, and an upper inclined surface extending in diameter toward the upper side of the through body is formed, and an upper inner diameter surface is formed in which a space is formed at the top, and the diameter is expanded toward the lower side of the through body. A fastening hole formed from an outer circumferential surface of the bearing member toward the inside of the penetrating body while the lower slope is formed;
A bicycle front suspension fork having a fixing hole formed on an upper outer circumferential surface of the head tube and being coupled to a fastening hole of the bearing member to fasten the fixing member and fixing the bearing member to the inside of the head tube. The method of claim 2,
Inside the damper cylinder; There is provided a piston through which the compressed fluid is restricted in and out of the air pressure chamber and the air damper chamber and the oil fluid is limited in and out of the oil pressure chamber and the oil tank,
The shift rod is fixedly coupled to the upper surface of the piston to form an air damper chamber, and a damper adjustment member is fixedly coupled to an upper end of a damper adjustment means provided on the piston to form an oil chamber, and the damper operation unit is the rod head member. A bicycle front suspension having the characteristic that the air damper chamber is sealed and the damper control unit rotates, and the damper control member and the damper control means of the damper adjuster rotate to direct the damper control control. fork. The method according to any one of claims 1 or 3,
Outside the cover member of the damper cylinder; A plurality of key grooves that are vertically open are formed, and in a load head member configured at an upper end of the shift rod; And a bearing support portion coupled to the lower bearing of the bearing member;
Outside the bearing support; A bicycle front suspension having a characteristic in which a damper cylinder is rotated together with rotation of the load head member, with the feature that the slide key is fixedly coupled to the keyway of the cover member while being formed with several keyways and fixing holes. fork. The method of claim 2,
The air pressure chamber and the air damper chamber of the damper regulator are in limited communication, and the air damper chamber and the air tank are communicated to produce a damper action of the compressed fluid,
In the piston; The upper and lower surfaces are in communication with each other, including a discharge passage through which the compressed fluid enters and exits, and a damper passage and an outlet passage are formed, on the upper surface of the piston; An air valve body configured in the damper control means is arranged to restrict opening and closing of the damper flow passage and the outlet passage including the discharge passage, and a check valve which discharges the compressed fluid in one direction is provided in the discharge passage;
An air connection member on one side consisting of a helical air lake is fixedly coupled to the outlet passage of the lower surface of the piston, and the air connection member on the other side of the air lake is coupled to a head member configured under the damper cylinder, so that the air lake is connected to the damper cylinder. It is arranged in a spiral shape that is variable up and down in the air pressure chamber, and the compressed fluid enters and exits into the air damper chamber and the air tank, and the damper action of the compressed fluid returned from the air damper chamber to the air pressure chamber through the damper flow path is produced. Having a bike front suspension fork. The method of claim 2,
The oil pressure chamber of the damper regulator and the oil chamber formed in the damper control member are in limited communication to produce a damper function of the oil fluid,
In the center of the piston, an oil valve chamber and a valve operation hole are formed, including an oil damper flow path, and an oil outflow path communicating with the oil pressure chamber in the oil damper flow path, and an oil inflow path communicating with the oil pressure chamber in the oil valve chamber Is formed, the oil inlet is formed at the lower side of the oil damper oil passage so that the oil cover member is fixedly fastened to the lower surface of the piston;
A check valve is mounted on the oil inflow path of the piston, and a screw fastening part is formed on the inner circumferential surface of the oil valve chamber, and the oil valve body is coupled to restrict opening and closing of the oil damper flow path, and the valve operation hole of the piston When the valve actuator of the damper control means is rotated while the valve actuator constituted by the damper control means is provided, the valve actuator is combined with the oil valve body to create an opening and closing action of the oil valve body. Bicycle front suspension fork with adjustable features. delete The method according to any one of claims 1 or 2,
A coupling body is formed on the upper outer circumference of the cylinder tube constituting the damper cylinder, so that the cover member is fixedly coupled, and a plurality of key grooves vertically open are formed on the outer circumferential surface of the cover member, and also inside the cover member ; A bushing member through which the shift rod slides in close contact is fixedly coupled, and an oil packing and an oil ring are mounted;
On the outer periphery of the lower side of the cylinder tube; With the combination body of which the diameter is expanded is configured, the fixing member coupled to the front fork is fixedly coupled to the lower side of the cylinder tube, so that fixing holes are formed on both sides of the fixing member, and further inside the cylinder tube; Bicycle front suspension fork having a feature that the inside of the damper cylinder is sealed by a head member having a fastening hole formed thereon The method of claim 11,
A bicycle front suspension having a characteristic that the pressure resistance of the damper cylinder is increased by applying an adhesive material to both ends of the high-tensile braiding line while the high-tensile braiding line is spirally wound on the outer circumferential surface between the upper assembly and the lower assembly of the cylinder tube. fork The method of claim 6,
A rod fastening part is configured on an upper outer circumferential surface of the piston, and a damper adjusting means for controlling the damper action of the oil fluid and the compressed fluid is arranged to be rotated on the inner upper surface of the rod fastening part;
A variable oil chamber is formed in which a free piston is mounted inside the damper adjusting member while a coupling body is formed on the upper outer circumferential surface of the damper adjusting means, and the damper adjusting member is fixedly coupled, and in the outer circumference of the damper adjusting member above the free piston The damper operation unit is fixedly coupled with an entrance through which the compressed fluid enters and exits is formed;
A shift rod is fixedly fastened to the rod fastening portion of the piston, and further on the upper side of the shift rod; While the load head member is fixedly coupled, the damper operation part penetrates through a through hole formed inside the fixture of the load head member and protrudes above the fixture of the load head member, and is compressed according to the rotation of the damper operation part. A bicycle front suspension fork with characteristics of both fluid damper action and oil fluid damper action. The method of claim 7,
A screw fastening hole formed inside the upper portion of the shift rod;
The outer circumference of the load head member is configured with a screw fastening part and coupled to the screw fastening hole of the shift rod, and a bearing support member coupled to the lower bearing of the bearing member is coupled to the screw fastening part of the load head member. The bearing support member is closely coupled to and fastened to the upper end of the shift rod;
A bicycle front suspension fork having a feature in which a plurality of key grooves with upper and lower surfaces open to the outer periphery of the bearing support member are formed, and a fixing hole is formed in the key groove so that a slide key is fixedly coupled to each of the key grooves. The method according to any one of claims 1 or 2,
The inner diameter center line of the damper cylinder is formed eccentrically at a predetermined interval from the inner diameter center line of the cover member of the damper cylinder and the outer diameter center line of the shift rod;
The lower outer circumference of the piston is configured with an oil ring coupling portion having a small diameter step, and the oil ring is pressurized to the inside of the damper cylinder so as to be in close contact with each other, and on the lower surface of the piston; A disk-shaped oil ring member that is pressed in close contact with the lower end of the oil ring is disposed, and the center line of the oil ring provided on the lower side of the piston and the center line of the shift rod are formed to be eccentric to each other by being fixedly coupled with a fixing member As a bicycle front suspension fork having a feature that the damper cylinder is interlocked with the rotation of the piston prevented according to the rotation of the shift rod. The method of claim 15,
On the lower surface of the piston; While the fastening hole is formed, a disk-shaped oil ring member fixedly coupled to the fastening hole is disposed and fixedly coupled by a fixing member, and a circular groove is formed in a circumferential shape on the outer circumferential surface of the oil ring member. The oil ring is fixedly disposed on the outer circumferential surface of the member by being pressed to the inside of the damper cylinder.The center line of the oil ring and the center line of the shift rod are formed to be eccentric to each other, so that the rotation of the piston is performed according to the rotation of the shift rod. A bicycle front suspension fork that is prevented and features a damper cylinder interlocking together. delete delete The method of claim 3,
The stem coupling member; A through hole through which the fixing member of the fixing means passes is formed on one side and is fixedly coupled to the fixing body of the load head member by the fixing member, and the through hole is formed of a plate material having a coupling hole on the other side of the through hole;
The stem coupling member is characterized in that a stem for receiving a bicycle handle is mounted at the coupling port of the stem coupling member, and the coupling member is coupled to a coupling portion formed inside the lower portion of the stem, and is closely coupled to the lower end of the stem coupling member. A bicycle front suspension fork having a feature that is fixedly coupled to the load head member. The method of claim 11,
An oil packing is mounted on the inner lower part of the cover member of the damper cylinder, the bushing member is disposed on the upper end of the oil packing, and a fixing bolt hole is formed in which one side of the inner circumferential surface of the cover member and one side of the outer circumferential surface of the bushing member are shared together. , A bicycle front suspension fork having a feature that the fixing bolt is fastened so that the bushing member is coupled to the inside of the cover member The method of claim 4,
The fork head member; Consisting of an upper fork member and a lower fork member, a coupling member receiving the fork tube is fixedly coupled to both sides of the upper fork member and the lower fork member, so that the upper fork member and the lower fork member are spaced apart at predetermined intervals, and A coupling hole formed at the center of the upper fork member, the damper cylinder penetrated, and closely coupled to a coupling hole formed at the center of the lower fork member;
The upper fork member and the lower fork member are provided with a communication member that communicates with each other to allow the compressed fluid to enter and exit, and the lower fork member has an air passage and an outflow inlet including an air inlet through which the compressed fluid enters and exits, and the upper fork member A bicycle front suspension fork having a characteristic in which a communication path is formed on the upper surface of the, and a fastener is formed so that the fixing member of the damper cylinder is fixedly coupled to the upper fork member. The method of claim 21,
The coupling member has a cylindrical hole through which the lower end is opened so that the fork tube is fixedly received, and a screw fastening part is formed on the lower outer circumferential surface of the coupling member, and a fixing hole and an air inlet are formed on the upper surface of the coupling member. That;
Fasteners are formed on both sides of the lower fork member to fix the coupling member, and coupling holes and coupling holes are formed on both lower sides of the upper fork member so that the coupling member is closely coupled to the coupling hole. , Bicycle front suspension fork having a feature that the lower fork member is fixedly coupled to the upper fork member, characterized in that the fixing member is fastened from the inside of the coupling member to the upper end of the upper fork member. The method of claim 21,
Providing the communication member to a lower surface of the upper fork member and an upper surface of the lower fork member;
On the lower surface of the lower fork member; A cover member having an open air flow path formed thereon is fixedly coupled to a lower surface of the lower fork member while an entrance communicating with the coupling hole of the lower fork member is formed so that the entrance and the communication member communicate with each other;
Compressed fluid from the entrance of the lower fork member to the inside of the coupling member by being combined with a cover to seal the communication path while having a communication opening and an entrance communicating with the inside of the coupling member respectively formed on the upper surface of the upper fork member Bicycle front suspension fork with a feature that allows access The method of claim 12,
A bicycle front suspension fork having a characteristic in that the pressure resistance of the damper cylinder is increased by winding a high-tension braided string in close contact with the outer circumferential surface of the cylinder tube.

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