KR101648833B1

KR101648833B1 - Hand brake device

Info

Publication number: KR101648833B1
Application number: KR1020150132179A
Authority: KR
Inventors: 홍석민
Original assignee: 경기과학기술대학교 산학협력단; 대신기계공업(주)
Priority date: 2015-09-18
Filing date: 2015-09-18
Publication date: 2016-08-30

Abstract

The present invention relates to a hand brake device which completely solves other malfunctions and misassembly problems due to a failure in the perpendicularity of the base at the time of assembling the fixed shaft part with respect to the base, wherein the hand brake device comprises a lever A release button attached to a tip of the lever, a rotating body mounted on a rear end of the lever, a base on which the rotating body is mounted, and a locking member, which is provided between the rotating body and the base, And a fixed shaft portion which is horizontally installed on the base and on which the rotary body is rotatably mounted, the hand brake device comprising: The base includes a pair of mounting holes formed to have the same size so as to penetrate from one side to the other side of the base. The fixed shaft portion is slidably fitted to the mounting hole and the rotating body of the base, And a pair of rotating rings slidably fitted on an outer circumferential surface of the fixed tube to the inside of the base and having an outer circumferential surface mounted on the inner side of the rotating body and spaced apart from each other.

Description

[0001] HAND BRAKE DEVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand brake device, and more particularly, to a hand brake device that can completely eliminate other malfunctions and misassembly due to a right angle error of a base when a fixed shaft portion is assembled to a base.

Generally, a vehicle is provided with a brake device for generating a braking force. Such a brake device is divided into a foot brake device and a hand brake device.

Here, the hand brake device is for keeping the vehicle in a stopped state. When a lever provided between the front seats is lifted and pulled, a cable interlocked with the lever is operated to operate an equalizer provided on the rear axle, So that the braking state of the vehicle is maintained.

The conventional hand brake device is shown in Figs. 5 and 6, and its construction and operation will be described as follows. A conventional hand brake device includes a lever which is a portion of the hand held by a driver, a release button attached to a tip of the lever, a rotating body mounted on a rear end of the lever, a base on which the rotating body is mounted, And a fixed shaft part 600 horizontally installed on the base 400 and rotatably mounted on the rotating body. The locking part 600 is installed between the base 400 and the base 400 and locks the operation of the lever.

The locking portion includes a release rod interlocked with the release button, a ratchet interlocked with the release rod and provided on the rotary body 300, and a tooth gear engaged with the ratchet and mounted on the base 400. According to this configuration, when the driver holds the lever and lifts the lever, the rear brake is braked by the cable interlocked with the rotation of the rotating body 300. At this time, the ratchet receives the rotational force (or restoring force) So that the operation of the lever is locked.

On the contrary, in a state in which the lever is lifted upward, when the driver presses the release button, the release rod is pushed backward, the ratchet coupled to the release rod is pivoted to release the engaged state with the tooth, The locking of the lever is released.

The fixed shaft portion 600 includes a fixed shaft 601 forcibly press-fitted to one side of the base 400 and fixed to the other side of the fixed shaft portion 600. The fixed shaft 601 is mounted on the inner circumferential surface, And a washer 603 fitted to an end of the fixing shaft 601 to fix the fixing shaft 601 to the outer surface of the base 400. [

However, the above-described conventional techniques have the following problems.

The conventional hand brake device is arranged such that the rotating body 300 is disposed inside the base 400 in a state where the ball bearing 602 is mounted on the rotating body 300 of the lever, 601 are forcibly press-fitted from one side of the base 400 to the other side to forcibly insert the fixing shaft 601 into the ball bearing 602 and the base 400, The base 400 and the ball bearing 602 which are subjected to a strong external force in one direction after being forcedly inserted into the fixing shaft 601 after the forced pressing of the fixing shaft 601 are twisted There is a problem that the perpendicularity becomes poor.

As described above, defects in the perpendicularity between the base 400 and the ball bearing 602 may lead to operation and assembly failure of the product, and defective products may cause problems such as a failure rate of the product itself, .

Registration No. 0392295 "Hand brake for automobiles" (2003.07.09)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hand brake device in which, when assembling a fixed shaft portion with respect to a base, a defective right angle of the base causes other malfunctions and assembly defects to be completely eliminated.

In order to achieve the above object, a "hand brake device" according to the present invention is a hand brake device comprising a lever which is a part held by a driver with a hand, a release button attached to a tip of the lever, a rotating body mounted on a rear end of the lever, A locking unit installed between the rotating body and the base and locking the operation of the lever, a fixed shaft unit horizontally installed on the base and rotatably mounted on the rotating body, A hand brake device comprising: The base includes a pair of mounting holes formed to have the same size so as to penetrate from one side to the other side of the base. The fixed shaft portion is slidably fitted to the mounting hole and the rotating body of the base, And a pair of rotating rings slidably fitted on an outer circumferential surface of the fixed tube to the inside of the base and having an outer circumferential surface mounted on the inner side of the rotating body and spaced apart from each other.

The fixing pipe of the "hand brake device" according to the present invention is fixed to the base by striking both ends of the fixing pipe exposed to both sides of the base horizontally inward and simultaneously by the same amount of external force .

Further, the fixed pipe of the "hand brake device" according to the present invention is fixed to the base through a caulking process, and the rotary ring is an oil-less bearing.

Further, the rotating ring of the "hand brake device" according to the present invention is characterized in that the pairs are the same size and made of sintered metal.

As described above, according to the present invention, when the fixed shaft portion is assembled with respect to the base, the defects in the perpendicularity of the base are completely eliminated, and the defective rate of the product itself is minimized and the service life is remarkably prolonged .

1 is a schematic partial cutaway perspective view of a hand brake device according to the present invention,
2 is a schematic longitudinal sectional view of a hand brake device according to the present invention;
Fig. 3 is an enlarged view of the main part of Fig. 2,
4 is a schematic perspective exploded perspective view of a hand brake device according to the present invention,
5 is a schematic partial cutaway perspective view of a conventional hand brake device,
6 is a schematic longitudinal sectional view of a conventional hand brake device
Fig. 7 is an enlarged view of the main part of Fig. 6,
8 is a schematic exploded perspective view of a conventional hand brake device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 to 4 are schematic views of a hand brake device according to the present invention. As shown in the figure, the hand brake device according to the present invention includes a lever 10, which is a portion of the hand held by a driver, a release button 20 attached to the tip of the lever 10, A base 40 on which the rotary body 30 is mounted and a rotary body 30 mounted between the rotary body 30 and the base 40 for operating the lever 10, And a fixed shaft portion 60 horizontally installed on the base 40 and rotatably mounted on the rotating body 30. [

The lever 10 is held by a driver and rotates up and down to perform a braking operation. The lever 10 has a bent handle 11 formed to be bent rearward from an upper end of the lever 10 and having the release button 20 installed on an upper end thereof so as to be held by a driver, And a connecting rod (12) projecting forward in a forward direction.

The release button 20 allows the locking portion 50 to be unlocked by an operation of the driver.

The rotary body 30 is connected to the lever 10 so that the rotary body 30 can be rotated about the fixed shaft 60 mounted on the base 40 by the operation of the lever 10 of the driver. The rotary body 30 is integrally formed so as to protrude rearward and includes an attachment member 31 having an outer surface on which a part of the locking portion 50 is installed and an attachment member 31 mounted on an end of the attachment member 31, And a connection fixing member 32 for fixing the end of the connection rod 12 to the end of the member 31. [

The base 40 provides a place where various parts including the fixed shaft 60 are installed, so that the hand brake device itself can be installed in the vehicle.

The base 40 includes a pair of installation holes 41 that are formed to have the same size so as to penetrate from one side to the other side.

The locking portion 50 includes a release rod 51 interlocked with the release button 20, a ratchet 52 interlocked with the release rod 51 and mounted on the rotary body 30, And a toothed portion 53 which is engaged with the base 40 and is mounted to the base 40.

When the driver lifts the lever 10, the rear brake is braked by the cable C interlocked with the rotation of the rotary body 30. At this time, the ratchet 52 is biased by a spring (Or restoring force), and is engaged with and fixed to the teeth 53, thereby locking the operation of the lever 10.

On the contrary, when the driver pushes the release button 20 in a state in which the lever 10 is lifted upward, the release rod 51 is pushed back, and the ratchet 52, which is engaged with the release rod 51, So that the locked state of engagement with the toothed member 53 is released, whereby the locking of the lever 10 is released.

The fixed shaft portion 60 includes a tubular fixing pipe 61 slidably fitted in the mounting hole 41 of the base 40 and the rotary body 30 and then fixed to the base 40, And a pair of rotating rings 62 slidably fitted in the outer circumferential surface of the fixing pipe 61 to the inside of the rotating body 30 and having an outer circumferential surface mounted on the inside of the rotating body 30 and spaced apart from each other.

The fixing pipe 61 serves to rotatably support the rotary ring 62 in the base 40. The fixing pipe 61 has a predetermined diameter and is formed in a tubular shape so that it is relatively light in weight and can be easily fitted to the mounting hole 41 formed on both sides of the base 40.

The fixing pipe 61 is fixed to the base 40 by striking both ends of the fixing pipe 61 exposed to both sides of the base 40 with the same amount of external force toward the inside in the horizontal direction This is for minimizing the perpendicularity of the base 40 due to striking during installation and assembly of the fixing pipe 61 with respect to the base 40.

The fixing pipe 61 is preferably fixed to the base 40 through a caulking process. In the caulking process, the fixing pipe 61 is inserted into the base 40, So that the fixing pipe 61 is fixed to the base 40 by deforming the outer circumferential surface of the fixing pipe 61. [

The rotary ring 62 is rotatably fitted along the outer circumferential surface of the fixing pipe 61 so that the rotary body 30 can be fixed to be rotatable about the fixing pipe 61. The rotary ring 62 is preferably an oil-less bearing.

Further, it is more preferable that the pair of rotating rings 62 have the same size and a sintered metal material so as to improve precision during assembly and operation. Here, the sintered metal material means that the rotating ring 62 is manufactured by sintering a metal.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

10: Lever
20: Release Button
30: rotating body
40: Base
41: Installation Ball
50:
51: release load 52: ratchet
53: Tooth type
60: Fixed shaft
61: fixed tube 62: rotating ring

Claims

A release button 20 attached to a front end of the lever 10, a rotating body 30 mounted on a rear end of the lever 10, A locking unit 50 installed between the rotary body 30 and the base 40 and locking the operation of the lever 10; And a fixed shaft portion (60) horizontally installed on the rotating body (30) and rotatably mounted on the rotating body (30), the hand brake device comprising:
The base (40)
And a pair of installation holes (41) formed in the same size so as to penetrate from one side to the other side,
The fixed shaft portion (60)
A tubular fixing pipe 61 slidably fitted in the mounting hole 41 of the base 40 and the rotary body 30 and then fixed to the base 40,
And a pair of rotating rings (62) slidably fitted on the outer circumferential surface of the fixing pipe (61) to the inside of the base (40) and mounted on the inner side of the rotating body (30)
The fixing pipe (61)
Both ends of the fixing pipe 61 exposed to both sides of the base 40 are fixed in the base 40 by striking inward in the horizontal direction and simultaneously by the same amount of external force,
The fixing pipe (61)
Is fixed to the base (40) through a caulking process,
The rotating ring (62)
Oil-less bearing,
The rotating ring (62)
The pairs are the same size and are made of sintered metal material,
The lever (10)
A folding handle 11 formed to be bent rearward from the upper end thereof and having the release button 20 installed on an upper end thereof so as to be held by a driver,
Further comprising a connecting rod (12) protruding forward in a forward direction at a lower end of the lever (10)
The rotating body (30)
An attachment member 31 integrally formed so as to protrude rearward thereof and provided on the outer surface with a part of the locking portion 50,
Further comprising a connection fixing member (32) mounted on an end of the installation member (31) and fixing an end of the connection rod (12) to an end of the installation member (31).

delete