KR100360683B1 - The hand brake - Google Patents

Abstract

The present invention relates to a hand brake used in a bicycle as well as a motorcycle, and has an effect of obtaining sufficient braking force with a small force, and the upper and lower brackets are assembled through a fastening element, and the inside of the body portion. An actuating part comprising first, second, and third gears that are mounted and different from each other in a pitch circle, a pull table that is integrally formed with the first gear, and a rotary plate that is assembled to the third gear and pulls wire wires It is characterized by being configured.

Description

The hand brake

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand brake used in motorcycles as well as bicycles, and more particularly, to a hand brake which can obtain a sufficient braking force even with a small force of operation.

In general, the hand brake is connected to a friction brake and a wire steel wire, which is usually mounted on a rotating wheel such as a bicycle or a motorcycle, and is directly operated by a driver's hand. Representative hand brakes are used in the following.

5 shows a conventional hand brake, in the hand brake mounted on one side of the steering handle pipe 300,

The hand brake is,

A body portion 100 having an upper and lower bracket 101 formed at the front side, and a side plate 103 having an end of the wire steel wire 400 inserted into one side of the upper and lower brackets 101 and 102;

The upper and lower brackets 101 and 102 are mounted to each other via a hinge 203 and are configured as a handle part 200 that pulls the end of the wire steel wire 400.

In particular, the handle portion 200 is composed of a rotary plate 201 is inserted into the end of the wire steel wire 400 is rotated and the pull table 202 extending from the rotary plate 201 to be mounted obliquely, The hinge portion 203 which is vertically penetrated and fixed to the body portion 100 is mounted to the connection portion of the rotary plate 201 and the pulling table 202.

Therefore, the case of operating the hand brake as described above is as follows. First, when the driver pulls the pull table 202 of the handle part 200 mounted at the front of the body part 100, the rotary plate 201 is rotated in the forward direction about the hinge 203, so that The end of the wire steel wire 400 is mounted on the rotary plate 201 is pulled inward.

Therefore, the friction brake connected to the wire steel wire 400 is operated so that a rotating wheel (not shown) such as a bicycle or motorcycle is braked through the friction brake.

However, when operating the conventional handbrake configured as described above, when the braking force of the handbrake is weak as the brake is pulled by pulling the distant pull with a large grip of the driver, there is a problem of causing an accident during driving.

In addition, when women and children operate the hand brake, the power is weak as well as the finger is short, there is a problem that the operation of the hand brake is difficult.

Accordingly, the present invention has been invented to solve the above problems, by minimizing the force for rotating the first gear by mounting the first, second, third gears of different pitch circles and number of teeth inside the body portion, It is an object to provide a hand brake which can obtain sufficient braking force with a small force.

In addition, by providing a hand brake that can obtain a sufficient braking force with a small force through the gear arrangement, there is also an object to facilitate the use of women or children lacking power.

In addition, as the diameter of the pitch circle of the first gear is expanded, the distance between the steering wheel pipe and the pulley is reduced to a minimum, so that even a child with a short finger can easily operate the brake.

On the other hand, by constructing a pulley with a plurality of diaphragms, even if the bicycle or motorcycle falls or the steering wheel portion collides with the impact from the outside to offset the impact, the purpose of preventing the hand brake from being easily damaged It is.

The present invention for achieving the above object, the upper and lower brackets are assembled through a fastening element body, and the first and second gears, which are mounted inside the body portion and different pitch circle of each other, It is characterized in that it is composed of an operating unit, a pull table that is integrally formed with the first gear, and a rotary plate assembled to the third gear to pull the wire steel wire.

1 is a partially cutaway perspective view showing a hand brake of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3 is an exploded perspective view showing a mounting state of the rotary plate according to the present invention.

Figure 4a is a cross-sectional view showing a non-operational state of the hand brake according to the present invention.

Figure 4b is a plan sectional view showing an operating state of the hand brake according to the present invention.

5 is a perspective view showing a conventional hand brake.

Explanation of symbols for main parts of the drawings

1: Body

11: upper bracket

12: lower bracket

13: long groove

2: operating part

21: first gear

22: second gear

23: third gear

3 pulley

31: middle plate

32: laminated plate

4: rotating plate

41: cylindrical part

42: diaphragm

5: wire steel wire

6: steering wheel pipe

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a view illustrating a hand brake of the present invention, the configuration of which is as follows.

In the hand brake mounted at the end of the steering wheel pipe 6,

The hand brake includes a body part 1 in which upper and lower brackets 11 and 12 are assembled through fastening elements, and first and second gears 21 and 22 mounted in the body part 1. Rotation for assembly of the operation unit 2 consisting of 23, the pulley 3 integrally formed with the first gear 21, and the third gear 23 to pull the wire steel wire 5 It is characterized by consisting of the diaphragm (4).

In particular, the upper and lower brackets (11, 12) constituting the body portion (1) is integrally assembled, the long groove 13 is formed on one side so that the pull table 3 can be rotated, the other The insertion hole 14 is formed at the side so that the wire steel wire 5 can be inserted into the body portion 1.

2 is a cross-sectional view taken along the line AA of Figure 1, the operating portion 2, the center is fixed to the body portion 1 by the first shaft 211, the pull table 3 is fixed to one side is semi-circular A first gear 21 formed of; A second gear 22 meshed with the first gear 21, the center of which is fixed to the body portion 1 by a second shaft 221; The third gear is engaged with the second gear 22, the center of which is fixed to the body portion 1 by the third shaft 231, the third gear equipped with a rotary plate 4 is fixed to the wire steel wire 5 on one side It consists of (23).

The pitch circle of the second gear 22 is the smallest, the pitch circle of the third gear 23 is relatively larger than the pitch circle of the second gear, and the pitch circle of the first gear 21. Is formed relatively larger than the pitch circle of the second gear (22).

Meanwhile, as shown in FIG. 1, the pull table 3 is fixed to the first gear 21 constituting the operating part 2, and is formed in the long groove 13 formed in the body part 1. The intermediate plate 31 to be inserted and the laminated plate 32 mounted in a plurality of layers on the upper and lower sides of the intermediate plate 31 are formed.

In addition, as shown in FIG. 3, a groove portion 232 having an opening portion 233 formed on one side is formed at the center of the third gear 23 constituting the operation portion 2, and the groove portion 232 is formed. And the opening portion 233 is rotated in conjunction with the rotation of the third gear 23, the rotary plate 4 consisting of a cylindrical portion 41 and the diaphragm 42 is mounted.

Hereinafter, the operational relationship of the present invention configured as described above are as follows.

First, Figure 4a shows a non-operational state of the hand brake according to the present invention, as the outer side of the pull table 3 mounted on the first gear 21 forming the operating unit 2 maintains the advanced state In addition, the second gear 22 meshed with the first gear 21 connected to the pull table 3 as well as the third gear 23 meshed with the second gear 22 also show a stopped state.

On the contrary, Figure 4b shows the operating state of the hand brake according to the present invention, when the driver pulls the pull table 3 protruding outward of the body portion 1 with a finger, it is fixed to the pull table (3) The first gear 21 is rotated in the forward direction, the second gear 22 meshing with the first gear 21 is rotated in the reverse direction, and the third gear 23 meshing with the second gear 22 is By being rotated in the forward direction, the rotary plate 4 mounted on the third gear 23 also rotates in the forward direction.

Accordingly, as the wire steel wire 5 connected to the rotary plate 4 is pulled through the rotary plate 4, the friction brake mounted on the wheel of the bicycle or the wheel of the motorcycle is operated.

In addition, when the puller 3 is pulled, the first gear 21 obtains a braking force with a small angle at a small angle, and the second gear 22 serves as a normal idle gear.

As described above, the present invention provides a hand brake which is capable of obtaining sufficient braking force by mounting the first, second and third gears having different pitch circles and number of teeth so that the first gear can be rotated with a small force. It has the effect of increasing the marketability of the hand brake.

In addition, by facilitating the use of women or children lacking power, there is also an effect that can be applied to women and children's bicycles and small motorcycles (scooter).

In addition, as the diameter of the pitch circle of the first gear is expanded, the distance between the steering wheel pipe and the pulley is reduced to a minimum, so that even a child with a short finger can easily operate the brake.

On the other hand, by configuring the pull table to a plurality of diaphragm to sufficiently absorb this against the external impact, it has the effect of maximizing the life of the hand brake.

Claims (5)

In the hand brake mounted at the end of the steering wheel pipe 6, The hand brake is, Body parts (1), the upper and lower brackets (11, 12) are assembled through fastening elements, It is mounted inside the body portion 1 and has a relatively medium pitch between the first gear 21 having the largest pitch circle and the second gear 22 and the first and second gears 21 and 22 having the smallest pitch circle. An actuating part 2 having a third gear 23 engaged with each other, A pulling table 3 which is integrally mounted with the first gear 21 and protrudes outward of the body portion 1, and Hand brake, characterized in that composed of a rotary plate (4) which is integrally assembled with the third gear (23) and mounted inside the body (1) to pull the wire steel wire (5). According to claim 1, wherein one side of the body portion (1) has a long groove 13 is formed so that the pull table (3) is rotated, the other side of the wire steel wire (5) of the body portion (1) Hand brake, characterized in that the insertion hole (14) is formed so that it can be inserted into the rotary plate (4). 2. Hand brake according to claim 1, characterized in that the first gear (21) of the operating part (2) is formed in a semicircular shape. The cylindrical portion 41 and the diaphragm 42 of claim 1, wherein a groove portion 232 having an opening portion 233 is formed at one side in a center of the third gear 23 constituting the operation portion 2. Hand brake, characterized in that the rotary plate consisting of 4 is mounted. 3. The pulley (3) according to claim 1 or 2, wherein the pulley (3) includes an intermediate plate (31) inserted into a long groove (13) formed in the body (1), and an outer upper and lower side of the intermediate plate (31). Hand brake, characterized in that consisting of a laminated plate 32 mounted in multiple layers.