JPH04100789A - Folding device for bicycle handle bar and folding angle adjusting device therefor - Google Patents

Abstract

PURPOSE:To freely adjust the height of a handle bar up and down and front and rear by fixedly securing a first handle stem to a fork, fitting it into the front pipe of a vehicle body, and fitting a second handle stem constituted out of posts and a handle bar fixing base and fixedly secured with a handle bar to the first handle stem. CONSTITUTION:A handle stem 3 is fixedly secured to a fork 2 with a screw 7, and fitted into the pipe of a vehicle body. A handle stem 4 composed of posts B1, B2 and a handle bar fixing part B3 is fitted to the stem 3. A handle bar 5 is fixedly secured to this handle stem 4. From this constitution, the height of a handle bar can be adjusted at running, up and down, front and rear, by folding operation of the handle stem 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a device for folding a bicycle handlebar up and down and back and forth, and a folding adjustment device used in the device.

[Conventional technology]

Conventional handlebars are installed by fixing the handle stem A part and the fork part with screws and passing them through the front vibrator of the vehicle body.

[What the invention seeks to solve] [1] Conventional handlebars had a problem in that the height had to be adjusted by getting off the bicycle and using a tool. The present invention allows the height of the bicycle to be raised or lowered depending on the posture, speed, etc., even while the bicycle is running.

The object of the present invention is to obtain a folding device that can freely adjust the front and back directions, and also to provide a folding adjustment device for use in the device and a method for operating the same.

[Means to solve the problem]

In order to achieve the above purpose, the hawk and the nodle stem A are fixedly attached, two struts B1 and B2 are attached at the front and rear of the handle stem 8, and the notle is fixed to the upper ends of the above-mentioned struts Bl and B2. When the stand B3 is attached, the handlebars will be horizontal to the bicycle and the ground when folded up and down or front to back, which is very effective.There is also a hole at the bottom of the support for adjustment. A hole is drilled, and the hole is used as the operating shaft and the folding angle adjustment device to which the starting wire is attached.From a functional standpoint, the handle stem A and the handle fixing base B3 are the support pillar B.
1. Machining by applying the thickness of the pillar B2 to the front and back steps.

[Effect]

When running with the folding handle configured as described above, the vehicle does not remain in a fixed position, but works to maintain free and easy movement of the upper body up and down and forward and backward.

For the above reasons, the more the folding angle can be adjusted, the more effective it is and the smoother the handle will work.

〔Example〕

An example will be described with reference to the drawings.The handle stem A (3) and the hawk (2) are fixed with screws (7) and installed in the vibe of the car body fi+.
(3) and the assembled handle stem B (4) are installed vertically in Figure 1. Figure 2 shows an embodiment in which folding handles are attached to the front and bottom.

Figure 3 shows how to attach struts B1 and B2 to the holes made with a step at the front and back of handle stem A (3) using screws (7), and then attach screws (7) to the tops and tips of struts B1 and B2. It is a frame part that attaches the handle lever (5) to the handle fixing base B3 with the screw (19) by attaching it to the hole made with a step on the front and back of the installed handle fixing base B3 with the screw (7). be.

FIG. 6 is a diagram showing the assembly of the above-mentioned parts.

In the embodiment shown in FIG. 6, a mounting hole is drilled at the bottom of the strut Bl and a strut B2, and several folding adjustment holes are drilled around the holes.The operating shaft (23) is inserted into the hole (6).・Insert the folding adjustment fitting (21) into the folding adjustment fitting screw (22),
This is a handle folding device with a folding adjustment device and a starting wire (25) attached.

In Figure 4, when the activation lever is released, the activation shaft enters the hole and the folding position of the handle is set.

Figure 5 shows that when the starting lever is moved, the operating shaft comes out of the hole and the handle folding set is removed.

〔Effect of the invention〕

Since the present invention is configured as described above, it provides the effects described below.

By attaching a folding handlebar to your bicycle, you can get a great advantage in riding in a comfortable position depending on the riding condition, and you can enjoy a comfortable and free posture while riding.
You can adjust the handle up and down and fold it forward and backward using the activation lever without tools.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view of a bicycle with a folding handlebar installed vertically, and Figure 2 is a vertical cross-sectional view of a bicycle with a folding handlebar installed in a vertical position. FIG. 3 is a longitudinal cross-sectional view of the skeleton parts of the folding handle. FIGS. 4, 5, and 6 are longitudinal cross-sectional views showing an embodiment of the frame component mounting portion, and are also views showing the assembled state. [Symbols and parts names] ・・・---Vehicle body, 2 ・---Hole, 3---Handle stem A14-...Handle stem B [B1 strut, B2... Strut, B3... Handle fixing base] 5...
...Handle lever, 6...--Folding adjustment hole,
7...screws, II, 12, 13, I4...
Handle prop stand, normal size, 15, 16...Handle support stand, normal size, 17.18...Handle fixing stand fixing hole, 1
9...Handle stopper, 21...Folding adjustment fitting, 22...Folding adjustment fitting screw, 23
...... Operating shaft, 24...- Operating shaft return spring,
25... - Starting wire, 26... Folding adjustment shaft.

Claims (1)

[Claims] 1. The handle stem A (3) and the fork (2) are fixed and installed in the front pipe of the vehicle body (1), and the handle stem A (3) is attached to the support column B1, the support column B2, A handle folding device includes a handle stem B(4) consisting of a handle fixing base B3, and a handle lever (5) fixed to said B(4). 2. The hole for inserting the screw (7) for fixing the handle stem A (3) and the handle fixing base B3 is a mechanism in which the hole is drilled with a step equal to the thickness of the pillars B1 and B2, and the handle according to claim 1. Folding device. 3. Folding angle adjustment holes (6
2. The handle folding device according to claim 1, wherein three or more holes are opened. 4. Attach the folding adjustment fitting (21) to the handle stem A (3) and the pillar B1 to the pillar B2.Folding adjustment fitting screw (22) Operating shaft (23) Operating shaft return spring (24) Starting wire (25)
A handle folding device comprising the folding angle adjusting device according to claim 2 or 3. 5. The handle stem B (4), which consists of the handle stem A (3), support B1, support B2, and handle fixing base B3, allows the handle lever (5) to be horizontal to the ground and the bicycle when folded. A folding angle adjustment device that allows you to freely adjust the folding angle and operation.