Bicycle front fork structure

Abstract

The utility model provides a bicycle front fork structure. A front fork comprises a vertical pipe, a first fork pipe and a second fork pipe which are integrally formed. One end of the vertical pipe is longitudinally provided with a cutting groove with two open sides, the other end of the vertical pipe is connected to one end of the first fork pipe and one end of the second fork pipe, the first fork pipe and the second fork pipe are located on the two sides, without the open sides, of the cutting groove respectively, and at least one control cable can be contained in the cutting groove in a penetrating mode. By means of the structure, the control cable can be conveniently arranged on a vehicle frame in a penetrating mode from a beam tube through the structure that the two sides of the cutting groove are open, the cable hiding difficulty of the control cable is reduced, and the operation efficiency of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of a bicycle, and in particular to a bicycle front fork structure, in which a control cable of the bicycle can be passed through and the control cable of the bicycle can be completely hidden after assembly. Background Art

[0002] The control cables for brakes or shifting of conventional bicycles are usually placed along the handlebars, cable ties, head tubes, front forks, frames, etc. Although cable ties have been used to fix the control cables, they are not effectively hidden, leaving them exposed outside the bicycle. When the control cables are exposed to the wind, sun, and rain for a long time, they are prone to aging, rusting, or breaking, which increases the danger of using the bicycle.

[0003] Although some manufacturers have installed control cables through the handlebars, the harness, the front fork and the frame, the front fork and the harness are vertically arranged, and there is an angle between the front fork and the frame, so it is not easy to install the control cables through the harness into the front fork and the frame. In addition, if the number of control cables increases, it will greatly increase the difficulty of hiding the cables for the user. Utility Model Content

[0004] The technical problem to be solved by the present application is to provide a bicycle front fork structure, which is a front fork including an integrally formed seat tube, a first fork tube and a second fork tube, and the front fork is a carbon fiber structure; one end of the seat tube is longitudinally opened to form a slot with openings on both sides, the other end of the seat tube is connected to one end of the first fork tube and the second fork tube, and the first fork tube and the second fork tube are respectively located on both sides of the slot where no opening is formed, and the slot can be used to accommodate at least one control cable to be passed through.

[0005] In one embodiment of the present application, the vertical pipe forms a first branch pipe and a second branch pipe on both sides of the cut groove respectively, and the relative positions of the first branch pipe and the second branch pipe are laterally recessed with multiple limit grooves of equal diameter from top to bottom, and at least one group of corresponding limit grooves is clamped with a limit member, and the limit member is longitudinally penetrated with a limit hole, and a vertical pipe cover is arranged on the top of the first branch pipe and the second branch pipe, and the vertical pipe cover is limited by a fixing member in the limit hole.

[0006] In one embodiment of the present application, the riser forms a first branch pipe and a second branch pipe on both sides of the cut groove, respectively, and a U-shaped inner shell is arranged on the adjacent surfaces of the first branch pipe and the second branch pipe. The U-shaped inner shell is a metal structure, and a plurality of limit grooves of equal diameter are horizontally recessed from top to bottom in the U-shaped inner shell. A limit piece is clamped in at least one group of corresponding limit grooves, and the limit piece forms a plurality of recesses on both sides of the plurality of limit grooves, and each of the recesses can be correspondingly arranged in each of the limit grooves. A limit hole is longitudinally penetrated in the limit piece, and a riser cover is arranged on the top of the first branch pipe and the second branch pipe, and the riser cover is limited in the limit hole by a fixing member.

[0007] In one embodiment of the present application, the vertical pipe forms a first branch pipe and a second branch pipe on both sides of the cut groove, respectively. The first branch pipe is penetrated by a plurality of first through holes from top to bottom, and the second branch pipe is penetrated by a plurality of second through holes corresponding to the positions of the plurality of first through holes. At least one of the first through holes and the corresponding second through hole are penetrated by an insert, and the insert is penetrated by an insert hole longitudinally. A vertical pipe cover is arranged on the top of the first branch pipe and the second branch pipe, and the vertical pipe cover is limited at the insert hole by a fixing member.

[0008] In one embodiment of the present application, a first through hole is longitudinally formed through the first branch pipe, a second through hole is longitudinally formed through the second branch pipe, and the first through hole is parallel to the second through hole.

[0009] In one embodiment of the present application, a set of fasteners is provided on the outer walls of the first branch pipe and the second branch pipe.

[0010] Through the above structure, due to the openings on both sides of the cutout groove, after the control cable passes through the inside of a bundle of tubes of the bicycle, it can be easily passed along the opening direction of the cutout groove to the inside of a bicycle frame to achieve the effect of hiding the cable, which not only reduces the difficulty of hiding the control cable, but also improves the user's operating efficiency and enhances the overall aesthetics, thereby achieving the purpose of protecting the control cable. In addition, even if there are multiple control cables, the user can easily pass the multiple control cables through the cutout groove.

[0011] The details of other effects and embodiments of the present application are described below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a three-dimensional schematic diagram of the first preferred embodiment of the present application;

[0014] Figure 2 It is a three-dimensional schematic diagram of another viewing angle of the first preferred embodiment of the present application;

[0015] Figure 3 This is a three-dimensional schematic diagram of the first preferred embodiment of the present application after the limiting member is set;

[0016] Figure 4 It is a three-dimensional schematic diagram of the first preferred embodiment of the present application after the riser cover and the sleeve are provided;

[0017] Figure 5 It is a three-dimensional schematic diagram of the first preferred embodiment of the present application after being installed on the head pipe and the bundle pipe is set;

[0018] Figure 6 yes Figure 5 Schematic cross-sectional view of ;

[0019] Figure 7 This is a three-dimensional schematic diagram of the second preferred embodiment of the present application after the limiting member is provided;

[0020] Figure 8 It is a cross-sectional schematic diagram of the second preferred embodiment of the present application after the head pipe and the bundle pipe are arranged;

[0021] Fig. 9 This is a three-dimensional schematic diagram of the third preferred embodiment of the present application after the plug is provided;

[0022] Fig.10 It is a cross-sectional schematic diagram of the third preferred embodiment of the present application after the head pipe and the bundle pipe are arranged.

[0023] Explanation of symbols

[0024] 10: Front fork 12: Seat tube

[0025] 121: first branch pipe 1211: first through hole

[0026] 1212: First hole 122: Second branch

[0027] 1221: second through hole 1222: second through hole

[0028] 14: Cutting groove 161: First fork tube

[0029] 162: Second fork tube 18: U-shaped liner

[0030] 22: Limiting groove 221: Concave part

[0031] 24: Limiting piece 241: Limiting hole

[0032] 26: Insert 261: Insert hole

[0033] 30: Riser cover 32: Fixing piece

[0034] 34: Kit 40: Control cable

[0035] 50: head tube 52: frame

[0036] 54: Tube 56: Handle DETAILED DESCRIPTION

[0037] The positional relationships described in the following embodiments include: up, down, left and right. Unless otherwise specified, they are all based on the directions in which the components are drawn in the drawings.

[0038] See also Figure 1 to Figure 6 The first preferred embodiment of the present application discloses a bicycle front fork structure, which is a front fork 10 including a seat tube 12, a first fork tube 161 and a second fork tube 162. The seat tube 12, the first fork tube 161 and the second fork tube 162 are integrally formed, and the front fork 10 is a carbon fiber structure; one end of the seat tube 12 is longitudinally opened from one end surface to form a cutout 14 with two openings on both sides, and the other end of the seat tube 12 is connected to one end of the first fork tube 161 and the second fork tube 162, and the first fork tube 161 and the second fork tube 162 are respectively located on the two sides of the cutout 14 where no opening is formed. From a structural point of view, since the cutout 14 is a structure with openings formed on both sides, the user can easily pass at least one control cable 40 in and out through the two openings of the cutout 14. In addition, if there are multiple control cables 40, they can also be easily passed through the cutout 14.

[0039] See also Figure 3 , the vertical pipe 12 is disclosed to form a first branch pipe 121 and a second branch pipe 122 on both sides of the cutout 14, and the first branch pipe 121 and / or the second branch pipe 122 are concavely provided with a plurality of limiting grooves 22 corresponding to an inner side surface of the cutout 14, and each limiting groove extends horizontally to the edge. Preferably, the plurality of limiting grooves 22 are mutually spaced and concavely provided on the inner side surfaces of the first branch pipe 121 and the second branch pipe 122, and the two limiting grooves 22 respectively provided on the inner side surfaces of the first branch pipe 121 and the second branch pipe 122 are symmetrically provided in pairs.

[0040] The plurality of limit grooves 22 may be provided with a limit member 24, and when the limit member 24 is placed in the limit groove 22, it can be used as a stopper to prevent the control cable 40 from being displaced. Since the control cable 40 is inserted in the cut groove 14, the position and extension direction of the control cable 40 can be limited to prevent displacement by adjusting the position of the limit member 24 inserted in different positions of the plurality of limit grooves 22. In other words, when the limit member 24 is inserted in the plurality of limit grooves 22 closer to the first fork tube 161 and the second fork tube 162, the range in which the control cable 40 can move in the cut groove 14 is smaller. In addition, the limit member 24 can also maintain the spacing between the first branch tube 121 and the second branch tube 122, so as to prevent the first branch tube 121 and the second branch tube 122 from approaching each other after the front fork 10 has been used for a long time, so as to reduce the gap in the cut groove 14.

[0041] Continue reading Figure 3 , the first branch pipe 121 is longitudinally provided with a first through hole 1211, the second branch pipe 122 is longitudinally provided with a second through hole 1221, and the first through hole 1211 is parallel to the second through hole 1221. Through the above structure, the overall weight of the front fork 10 can be reduced by penetrating the first through hole 1211 and the second through hole 1221.

[0042] See also Figure 4 The limiting member 24 is provided with a limiting hole 241 in the longitudinal direction, a vertical pipe cover 30 is provided on the top of the first branch pipe 121 and the second branch pipe 122, a fixing member 32 passes through the vertical pipe cover 30 and one end of the fixing member 32 is limited in the limiting hole 241, so that the vertical pipe cover 30 is fixed. The vertical pipe cover 30 has the functions of dustproof and waterproof.

[0043] The outer walls of the first branch pipe 121 and the second branch pipe 122 are jointly sleeved with a set of fixings 34 . The fixings 34 have a limiting function. In addition to preventing the first branch pipe 121 or the second branch pipe 122 from bending and expanding outward, it can also limit the space for the control cable 40 to move toward the bottom of the slot 14 .

[0044] See also Figure 5 And with Figure 1 to Figure 4 The disclosed bicycle has a head tube 50 and a frame 52 formed as one piece, the frame 52 is hollow inside, the seat tube 12 of the front fork 10 is passed through the head tube 50, and a bundle tube 54 is sleeved on the top of the seat tube 12 of the front fork 10, the bundle tube 54 is different from a handle 56 of the bicycle set at one end of the front fork 10, and the bundle tube 54 is hollow inside; wherein, the openings on both sides of the cut groove 14 are respectively set corresponding to the directions of the bundle tube 54 and the frame 52.

[0045] See also Figure 6 And with Figure 5Since the openings on both sides of the cutout groove 14 are respectively arranged in the direction of the bundle tube 54 and the frame 52, after the control cable 40 passes through the bundle tube 54, it can be easily passed along the openings on both sides of the cutout groove 14 to the inside of the frame 52 to achieve the effect of hiding the cable. In the process of hiding the cable, the routing of the control cable 40 is completely unaffected by other parts of the bicycle. The present application can reduce the difficulty of hiding the control cable 40 and improve the user's operating efficiency. In addition to improving the overall aesthetics, it also achieves the purpose of protecting the control cable 40. In addition, since the cutout groove 14 is opened on both sides, even if there are multiple control cables 40, the user can easily pass the multiple control cables 40 from the bundle tube 54 through one side opening of the cutout groove 14 and the other side opening to the inside of the frame 52.

[0046] See also Figure 7 and Figure 8 This is the second preferred embodiment of the present application, which is different from the first preferred embodiment in that a U-shaped inner shell 18 of metal structure is disposed on the adjacent surfaces of the first branch pipe 121 and the second branch pipe 122, and a plurality of equal-diameter limit grooves 22 are transversely recessed from top to bottom on the surface of the U-shaped inner shell 18, and at least one group of corresponding limit grooves 22 is clamped with the limit member 24, and the limit member 24 forms a plurality of recesses 221 corresponding to the two sides of the plurality of limit grooves 22, and each of the recesses 221 can be correspondingly disposed in each of the limit grooves 22. The U-shaped inner shell 18 is a metal structure different from the carbon fiber structure material of the seat tube 12, and the U-shaped inner shell 18 can strengthen the overall structural strength of the seat tube 12, so that the section groove 14 maintains a fixed width, and will not significantly increase the overall weight of the front fork 10. In addition, the limiting member 24 in this embodiment can also maintain the distance between the first branch pipe 121 and the second branch pipe 122 to prevent the first branch pipe 121 and the second branch pipe 122 from approaching each other and reducing the gap of the slot 14 after the front fork 10 is used for a long time.

[0047] See also Fig. 9 And with Fig.10 This is the third preferred embodiment of the present application, which is different from the first preferred embodiment in that the first branch pipe 121 is horizontally penetrated with a plurality of first through holes 1212 from top to bottom, and the second branch pipe 122 is horizontally penetrated with a plurality of second through holes 1222 at positions corresponding to the plurality of first through holes 1212, and an insert 26 can be selectively disposed between at least one of the first through holes 1212 and the corresponding second through hole 1222, and the two ends of the insert 26 are respectively penetrated through at least one of the first through holes 1212 and the corresponding second through hole 1222. In this way, the insert 26 can achieve the same effect as the stopper 24.

[0048] Furthermore, the inserting member 26 is longitudinally provided with an inserting hole 26, and the top of the first branch pipe 121 and the second branch pipe 122 can also be provided with the riser cover 30, and the riser cover 30 is limited in the inserting hole 26 by the fixing member 32. Through the above structure, another method of fixing the first branch pipe 121 and the second branch pipe 122 is provided, and the above structure can also limit the displacement of the control cable 40.

[0049] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present application, and are not intended to limit the implementation methods of the technology of the present application in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present application, but they should still be regarded as technologies or embodiments that are essentially the same as the present application.

Claims

1. A bicycle front fork structure, characterized in that: The bicycle front fork structure comprises: A front fork, comprising an integrally formed seat tube, a first fork tube and a second fork tube; One end of the riser is longitudinally opened to form a slot with openings on both sides, and the other end of the riser is connected to one end of the first fork tube and the second fork tube, and the first fork tube and the second fork tube are respectively located on both sides of the slot where no opening is formed, and the slot can accommodate at least one control cable to pass therethrough.

2. The bicycle front fork structure according to claim 1, characterized in that: The vertical pipe forms a first branch pipe and a second branch pipe on both sides of the groove respectively. The first branch pipe and the second branch pipe are concavely provided with a plurality of limiting grooves on an inner side surface corresponding to the groove, and each limiting groove extends laterally with openings on both sides, and at least one group of corresponding limiting grooves is provided with a limiting member.

3. The bicycle front fork structure according to claim 1, characterized in that: The vertical pipe forms a first branch pipe and a second branch pipe on both sides of the cut groove respectively, and a U-shaped inner shell is arranged on the adjacent surfaces of the first branch pipe and the second branch pipe. The surface of the U-shaped inner shell is laterally recessed with a plurality of limit grooves from top to bottom, and at least one group of corresponding limit grooves is clamped with a limit piece.

4. The bicycle front fork structure according to claim 3, characterized in that: The U-shaped inner liner is a metal structure.

5. The bicycle front fork structure according to any one of claims 2 to 4, characterized in that: The limiting member is provided with a limiting hole in the longitudinal direction. A vertical pipe cover is provided on the top of the first branch pipe and the second branch pipe. The vertical pipe cover is limited in the limiting hole by a fixing member.

6. The bicycle front fork structure according to claim 5, characterized in that: The limiting member forms a plurality of recesses on both sides corresponding to the plurality of limiting grooves, and each of the recesses can be correspondingly arranged in each of the limiting grooves.

7. The bicycle front fork structure according to claim 1, characterized in that: The vertical pipe forms a first branch pipe and a second branch pipe on both sides of the cut groove, respectively. The first branch pipe is penetrated by a plurality of first through holes in the upper and lower horizontal directions, and the second branch pipe is penetrated by a plurality of second through holes at positions corresponding to the plurality of first through holes. An insert can be optionally arranged between at least one of the first through holes and the corresponding second through hole, and the two ends of the insert are respectively penetrated by at least one of the first through holes and the corresponding second through holes.

8. The bicycle front fork structure according to any one of claims 2 to 4 or 6, characterized in that: A first through hole is longitudinally formed in the first branch pipe, a second through hole is longitudinally formed in the second branch pipe, and the first through hole is parallel to the second through hole.

9. The bicycle front fork structure according to claim 7, characterized in that: The outer walls of the first branch pipe and the second branch pipe are sleeved with a set of fixings, and the fixings have a fixing hole longitudinally formed therein. A vertical pipe cover is arranged on the top of the first branch pipe and the second branch pipe, and the vertical pipe cover is limited in the fixing hole by a fixing piece.

10. The bicycle front fork structure according to claim 8, characterized in that: The fork is made of carbon fiber.

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