JP3099087U6 - Handle adjustment device - Google Patents

Abstract

A structure that leads to swinging of a handle is simplified and the number of assembling steps and costs are reduced.
A base seat held by a head tube standing near the upper end of a front fork, a swing tube assembly pivotally supported by the base seat, and a swing tube assembly. Control means for controlling movement. The swing pipe assembly is composed of a main pipe pivotally supported at the front part of the base seat and a braking piece pivotally supported at the rear part of the base seat so as to hold the main pipe from behind. A part of the guide hole set is formed at the upper end of each, and the control means uses the guide hole set to hold the brake piece and clamp the main pipe to tighten the swing pipe assembly, The upper end portion of the main pipe and the upper end portion of the braking piece can be slid relative to each other within a certain range.
[Selection] Figure 6

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a handle adjustment device, and more particularly, to a handle adjustment device that allows a rider, regardless of whether a motor is attached, such as a two-wheeled vehicle, a three-wheeled vehicle, a tandem vehicle, and an electric cart to freely adjust the position of the handle. .
[0002]
[Prior art]
The applicant has proposed a “bicycle steering wheel adjusting mechanism” in actual application 2002-003989. As shown in FIGS. 1 to 3, this bicycle handle adjustment mechanism is provided between the handle 12 of the bicycle 10 and the front fork 11 of the bicycle 10 in order to adjust the position of the bicycle handle. The swing link assembly 100 is mainly used. The swing link assembly 100 includes a stationary node 14 fixed to the upper end surface of the front fork 11, a driving node 15 pivotally attached to the front end of the stationary node 14, and a rear end of the stationary node 14. The follower node 16 is pivotally mounted on a surface extending in the vertical direction toward the back of the prime mover 15, and its lower end 171 is pivotally attached to the upper end of the follower node 16. The intermediate section 17 is composed of
[0003]
The driving node 15 has a long tube shape, and a first guide rail 151 is formed on the surface facing the driven node 16. The intermediate node 17 is formed of the first guide rail. It is regulated by 151 and is installed on the surface so as to be movable up and down. The central portion of the handle 12 has two upper and lower ends, and is slidably fitted into the long hollow tube-shaped hollow space of the prime mover 15 so that the upper end protrudes from the upper end of the prime mover 15. It is fixed to the upper end of the inserted head post 152. A through hole 154 is formed in the tube wall 153 having a surface facing the driven node 16 of the driving node 15, whereas a vertically elongated slot 172 is formed on the intermediate node 17. . In addition, a tension rod 173 is installed through the through hole 154 and the elongated hole 172, and a second guide rail 155 is formed on the surface of the head post 152 facing the tube wall 153 so as to be vertically directed. . The two ends of the tension rod 173 are regulated by the second guide rail 155 of the head post 152 so that the head post 152 can be locked by being pulled by the tension rod 173. The installed locking ram 174 is rotated, and the locking ram 174 is pulled via the pulling can 173 to lock the head post 152, and the intermediate link 17 is driven by the driven link 15. A pressing lever 13 that is pressed and locked on the surface facing the node is provided. Note that one end of the pressing lever 13 is a pair of lug portions 175 and abuts against the intermediate node 17 via a braking piece 176. The pair of lug portions 175 have a symmetrical shape composed of a thick portion and a thin portion, respectively, and are extended in the left-right direction through the pins 177 penetrating them to pull the tension member. 173 is pivoted.
[0004]
When the rider wants to adjust the position of the handle 12, if the rider simply pulls up the holding lever 13 and makes the thin part abut against the braking piece 173 instead of the thick part, the locking ram 174 and the braking piece 176 are once lost, so that the handle 12 can be pulled and pressed to adjust the front-rear position of the handle 12 and the head post 152 can be raised and lowered. For example, the vertical position of the handle 12 can be adjusted.
[0005]
[Problems to be solved by the invention]
The inventor reexamined his prior application and found that the structure leading to the swinging of the swing link assembly 100 is complicated, and that the assembly man-hours and costs are considerable. In view of this, the inventor of the present invention aims at a handle adjusting device that simplifies the structure leading to the swinging of the handle and reduces the man-hour and cost of assembly.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is provided between a steering wheel and a front fork of a vehicle body frame to adjust the position of the steering wheel of the vehicle, and is installed near the upper end of the front fork. A base seat held by the head tube, a swing tube assembly pivotally supported by the base seat, and a control means for controlling the swing of the swing tube assembly. In the handle adjustment device, the swing pipe assembly includes a main pipe pivotally supported at the front portion of the base seat, and a braking piece pivotally supported at the rear portion of the base seat so as to hold the main pipe from behind. A part of the guide hole set is formed in each of the upper end portion of the main pipe and the upper end portion of the brake piece, and the control means is operated by the swing pipe assembly using the guide hole set. Holding the braking piece To clamp the swing of the swing tube assembly, or loosen the main tube to release the tightening, and slide the upper end of the main tube and the upper end of the brake piece within a certain range. It is installed so that it can be attached.
[0007]
In the handle adjusting device of the present invention configured as described above, the control means is configured to use the swing tube assembly only by using a guide hole set formed in the upper end portion of the main pipe and the upper end portion of the brake piece. The brake pipe is pressed to clamp the main pipe and tighten the swing of the swing pipe assembly, or the main pipe is loosened to release the tightening, and the upper end of the main pipe and the brake piece The upper end of the swing tube assembly is installed so that it can be slid with respect to each other within a certain range, so that the structure leading to the swing of the swing tube assembly is simpler than the conventional swing structure, and the handle Man-hours and costs for assembling the entire adjustment device can be reduced.
[0008]
[Embodiment of the Invention]
Hereinafter, an embodiment of a handle adjustment device according to the present invention will be described with reference to the drawings. In the present embodiment, a handle adjustment device attached to a bicycle is shown as an example, but the present invention is not limited to this, and is applicable to an electric bicycle, a tandem vehicle, an electric cart, and the like. As shown in FIG. 4, the handle adjusting device in the present embodiment is provided between the handle 25 and the front fork 212 of the vehicle body frame 21 in order to adjust the position of the handle 25 of the bicycle 20. A base seat 30 held by a head tube 211 erected near the upper end of the front fork 212; a swing tube assembly 40 pivotally supported by the base seat 30; And a control means 60 for controlling the swinging of the moving tube assembly 40.
[0009]
In addition, a connecting rod 34 connected to the front fork 212 is provided at the bottom of the base seat 30 so as to protrude from the head tube 211.
[0010]
As shown in FIG. 5, the swing tube assembly 40 includes a main pipe 41 pivotally supported by a front portion 32 of the base seat 30 and a rear portion of the base seat 30 so as to hold the main pipe 41 from behind. 33 and a braking piece 50 pivotally supported by 33. The main tube 41 is further provided with an inner tube 42 slidably inserted into the tube of the main tube 41 as an outer tube. In combination with FIG. 6, the concave-convex structure for fitting between the inner tube 42 and the outer tube 41 along the axial direction to prevent relative rotation of the two inner and outer tubes. 46 is formed. In this embodiment, the concavo-convex structure 46 includes a concave groove 461 formed in the outer wall 411 of the main pipe 41 and a projection 462 formed in the outer wall 421 of the inner pipe 42. A protrusion may be formed on the outer wall 411 of 41, and a concave groove may be formed on the outer wall 421 of the inner tube 42.
[0011]
Further, two clamping blocks 412 protrude from the outer wall 411 of the main pipe 41 and extend along the axial direction with a gap therebetween. A slit 415 is formed between the two holding blocks 412 of the outer tube 41. A pivot block 43 with a shaft hole is provided at the lower end of the main pipe 41, and the outer tube 41 has a first pivot member 44 that has a front portion 32 of the base seat 30 and a shaft hole of the pivot block 43. By penetrating, it is pivotally supported by the front portion 32 of the base seat 30 so as to be swingable.
[0012]
Further, the braking piece 50 extends between the two side plates 51, 52 protruding left and right so as to sandwich the two clamping blocks 412 from the outside, and the two side plates 51, 52, and the two side plates And a connecting plate 53 that connects 51 and 52. A pivot hole 54 is formed at the lower end of each of the second side plates 51, 52, and the brake piece 50 has a second pivot member 55 formed by the rear portion 33 of the base seat 30 and the second pivot hole 54. By penetrating, it is pivotally supported by the rear portion 33 of the base seat 30 so as to be swingable.
[0013]
A part of the guide hole set 56 is formed in the upper end portion of the main pipe 41 and the upper end portion of the braking piece 50. In this embodiment, the guide hole set 56 includes a pair of through holes 561 formed in the two side plates 51 and 52 of the braking piece 50 and a pair of axial directions formed in the two clamping blocks 412. A pair of long holes extending in the axial direction are formed in the two side plates 51 and 52 of the braking piece 50, and a pair of the two sandwiching blocks 412 are paired with each other. A through hole may be formed.
[0014]
Further, the control means 60 utilizes the guide hole set 56 and is operated by the swing tube assembly 40 to press the brake piece 50 and sandwich the main tube to swing the swing tube assembly. The main pipe 41 is loosened to release the tightening, and the upper end portion of the main pipe 41 and the upper end portion of the brake piece 50 can be slid relative to each other within a certain range. Yes. The control means 60 includes a screw rod 61 installed through the guide hole set 56, a nut 62 screwed to one end 611 of the screw rod 61, and a screw rod 61 near the other end 612 of the screw rod 61. The other end 612 of the screw rod 61 is screwed so that the other end 612 protrudes, the pin 65 is screwed to the other end 612 of the screw rod 61, and the screw rod 61 is pivotally attached via the pin 65. The presser lever 64 is made up of. One end of the presser lever 64 is formed in a symmetrical lug consisting of a thin portion and a thick portion. When the presser lever 64 is rotated, the thick portion is brought into contact with the operation block 63, and the operation block 63 When the brake piece 50 is pressed through 63 to sandwich the second clamping block 412 from the outside and the main pipe 41 as the outer pipe is contracted, the inner pipe 42 in the pipe is firmly clamped to be in a locked state, and then rebounded. Instead of the thick part, the thin part is brought into contact with the operation block 63 to loosen the clamping and make it loose. A second pad 70 penetrating through the screw rod 61 is provided between the second sandwiching block 412 and the second side plates 51 and 52.
[0015]
As shown in FIG. 6, normally, the presser lever 64 is rotated so that the thick portion abuts against the operation block 63, and the two side plates of the brake piece 50 are interposed via the operation block 63. 51, 52 and the second pad 70 are pressed to sandwich the second clamping block 412 from the outside, the slit 415 is eliminated, the main pipe 41 as the outer pipe is contracted, and the inner pipe 42 in the pipe is firmly clamped and locked. Thus, the handle 25 can be fastened to the bicycle 20.
[0016]
When the position of the handle 22 is to be adjusted, as shown in FIG. 7, the presser lever 64 is rotated so that the thin portion abuts against the operation block 63 instead of the thick portion, The clamping is loosened so that the second side plates 51 and 52 and the second pad 70 and the clamping block 412 are loosened. At this time, the slit 415 is opened, and a gap is formed between the second sandwiching block 412 and the second pad 70, and the main pipe 41 connects the first pivoting member 44 as shown in FIG. 8. The brake piece 50 can swing in the front-rear direction about the second pivot member 55 as a shaft. At the same time, as shown in FIG. 9, since the locking of the inner tube 42 has already been released, the inner tube 42 can be slid along its axial direction. Therefore, the rider can not only adjust the front / rear position of the handle 25 by pulling or pressing the handle 25 as necessary, but can also raise or lower the inner tube 42 to raise the handle. The vertical position of 25 can also be adjusted.
[0017]
[Effect of device]
As described above, in the handle adjusting device of the present invention, the control means can be used in the swing pipe assembly by using only the guide hole set formed in the upper end of the main pipe and the upper end of the brake piece. It is operated to hold the brake piece and clamp the main pipe to tighten the swing of the swing pipe assembly, or loosen the main pipe to release the tightening, and the upper end of the main pipe and the upper end of the brake piece Are installed so as to be slidable with respect to each other within a certain range, the structure leading to the swing of the swing tube assembly is simpler than the conventional swing structure, and the handle adjustment device The total assembly man-hours and costs can be reduced.
[Brief description of the drawings]
FIG. 1 is a side view showing a bicycle equipped with a conventional handle adjustment mechanism.
FIG. 2 is a perspective view showing a conventional bicycle handle adjustment mechanism.
FIG. 3 is an exploded view showing a conventional bicycle handle adjustment mechanism.
FIG. 4 is a side view showing a bicycle to which the handle adjustment device of the present invention is attached.
FIG. 5 is an exploded view showing the handle adjustment device in the embodiment.
FIG. 6 is a partial cross-sectional view showing a locked state of the handle adjusting device in the embodiment.
FIG. 7 is a partial cross-sectional view showing a loose state of the handle adjustment device in the embodiment.
FIG. 8 is an explanatory diagram showing a state in which the front / rear position of the handle is adjusted in the embodiment.
FIG. 9 is an explanatory diagram showing a state in which the vertical position of the handle is adjusted in the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Bicycle 100 Swing link assembly 11 Front fork 12 Handle 13 Pressing lever 14 Stationary node 15 Driving link 151 First guide rail 152 Head post 153 Tube wall 154 Through hole 155 Second guide rail 16 Follower 17 Intermediate node 171 Lower end 172 Long hole 173 Pulling rod 174 Locking ram 175 Lug portion 176 Brake piece 177 Pin 20 Bicycle 21 Body frame 211 Head tube 212 Front fork 25 Handle 30 Base seat 32 Front portion 33 Rear portion 34 Connecting rod 40 Swing tube assembly 41 Main tube 411 Outer wall 412 Holding block 415 Slit 42 Inner tube 421 Outer wall 43 Pivoting block 44 First pivoting member 46 Uneven structure 461 Concave groove 462 Projection 50 Brake piece 51, 52 Side plate 53 Connecting plate 54 Pivoting hole 55 Second pivoting Member 56 Guide hole set 561 Through hole 562 Long hole 6 Control means 61 the threaded rod 611 at one end 612 and the other end 62 nut 63 working block 64 pressing lever 65 pin 70 pad

Claims (5)

A base seat that is provided between a handle and a front fork of a vehicle body frame and is held by a head tube that stands near the upper end of the front fork to adjust the position of the vehicle handle. And a handle adjustment device comprising a swing tube assembly pivotally supported by the base seat and a control means for controlling swinging of the swing tube assembly.
The swing pipe assembly is composed of a main pipe pivotally supported at the front part of the base seat and a braking piece pivotally supported at the rear part of the base seat so as to hold the main pipe from behind.
A part of the guide hole set is formed on each of the upper end of the main pipe and the upper end of the braking piece,
The control means utilizes the guide hole set, and is operated by the swing tube assembly to hold the brake piece and sandwich the main tube to tighten the swing tube assembly or loosen the main tube. The handle adjustment device is installed so that the tightening can be released and the upper end portion of the main pipe and the upper end portion of the braking piece can be slid relative to each other within a certain range. The main pipe is provided as an outer pipe with an inner pipe having one end slidably inserted into the main pipe. The main pipe is combined with the inner pipe to be an insertion / removal pipe. The handle adjusting device according to claim 1, wherein a concavo-convex structure is formed so as to prevent relative rotation of the inner and outer two tubes by being fitted to each other along their axial directions. 2 sandwiching blocks projecting from the outer wall of the main pipe and extending along the axial direction at intervals,
A slit is formed between the two sandwiching blocks of the outer tube,
The handle adjusting device according to claim 2, wherein the braking piece has two side plates protruding left and right so as to sandwich the two clamping blocks from the outside. The guide hole set includes a pair of through holes formed in one of the two clamping blocks and the two side plates of the braking piece, and a pair formed in the other of the two clamping blocks and the two side plates. The handle adjusting device according to claim 3, wherein the handle adjusting device comprises a long hole extending along the axial direction. The control means includes a screw rod installed through the guide hole set, a nut screwed to one end of the screw rod, and a screw so that the other end of the screw rod protrudes near the other end of the screw rod. An operation block that is joined, a pin that is screwed to the other end of the screw rod, and a pivot that is pivotally attached to the screw rod via the pin. Holding the brake piece and pinching the two clamping blocks from the outside, the main pipe as the outer pipe is shrunk, the inner pipe inside the pipe is firmly clamped and locked, and when rebounded, the clamping is loosened and loosened. The handle adjusting device according to claim 3, comprising a presser lever to be operated.

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