KR200212665Y1 - An appratus for warning the replace position and time of the break lining - Google Patents

Abstract

The present invention relates to a brake lining replacement time and replacement position notification device that automatically detects the wear of the brake lining to inform the user of the replacement time and replacement position of the brake lining to prevent damage to the brake shoes and drums, In a brake braking device including a brake drum, a lining, and a semicircular brake shoe, the lining is formed by drilling the lining to a wear limit of the lining higher than the height of the rivet attached to the brake shoe corresponding to the through hole formed in the brake shoe. Inserting a cylindrical wear detection sensor made of metal conductors with non-conductors in the insertion hole, inserting and fixing the tangerine part of the sensor to the binding part formed on the rear surface of the brake shoe, and connecting plate inserted into the plate insertion hole formed under the wear detection sensor. Is connected to the lead wire of the sensor and the power is applied. It is a donor group to the ground when the brake drum detects a conductive state of the current through the wear sensor, via the control unit by using each of the speakers and display the time to replace or exchange location to inform the user.

Description

AN APPRATUS FOR WARNING THE REPLACE POSITION AND TIME OF THE BREAK LINING}

The present invention relates to a notification device for replacing the brake lining of the brake lining, in particular, the brake lining for braking the car by rubbing the brake drum when worn, the brake to display the replacement time and replacement position on the alarm sound or display to inform the user The present invention relates to an exchange timing and an exchange position notification device of a lining.

In general, a braking device of a vehicle is used to maintain a parking state at the same time as decelerating or stopping a driving vehicle, and converts a kinetic energy of a vehicle into thermal energy using a friction force, and releases the heat into the atmosphere to generate a braking force. Friction brakes are mainly used.

The basic structure of such a braking device is composed of an operation mechanism that increases and transmits the pedal effort of a pedal operated by a driver using a link or hydraulic pressure, and a brake body that receives the force to generate a braking force. In general, a brake body has a structure in which a disc brake is installed at a front axle in a passenger car, a drum brake is installed at a rear axle, and a brake is installed at both front and rear axles in a large truck.

FIG. 1 schematically illustrates a configuration of a general brake device. Referring to the brake device with reference to the drawings, the brake device rotates with the wheel and is installed on the rear spindles, and the brake drum 11 is rubbed with the brake drum 11. Lining 12, two semi-circular brake shoes 13 to which the lining 12 is attached, and a wheel cylinder 14 installed at one end to extend the brake shoe 13, and the wheel cylinder When hydraulic pressure acts on 13 and the brake shoe 13 is expanded, the braking force of the vehicle is generated by the lining 12 attached to the surface of the brake shoe 13 in contact with the brake drum 11 and rubbing.

More specifically, the braking device of a conventional brake device, the brake is rotated at high speed with the wheel and tire, and although not shown in the figure, the brake drum is supported on the rear spindle via the conventional hub bearing and cap And a brake shoe selectively frictionally contacted with the brake drum, a wheel cylinder extending the brake shoe, and a back plate supporting the brake shoe and the wheel cylinder and fixed to the rear spindle, the outer circumferential surface of the brake shoe The lining is attached or fixed by rivets, the brake drum and the lining is in contact with the friction to generate a braking force.

In the case of a large vehicle, in view of the structure of a brake lining wear alarm device of a known vehicle, a rivet hole is installed inside the lining coupled with the brake shoe so that the brake shoe and the lining are connected to each other by rivets, and the rivet The connector is made of a structure that is coupled to the connector connecting plate integrally to be fixed by engaging the connector and the wire connected to one end thereof.

The brake lining wear alarm device having such a structure, when the brake shoe and the lining is coupled, is integrally fixed to the connector connecting plate through a rivet, and inserts a connector with a wire connected to one end of the connector connecting plate. When the brake drum and the lower end of the rivet come into contact with each other, the connector is grounded by a connector and an electric wire connected to the connector connecting plate, which alerts the driver when the lining is replaced by a warning means installed in the driver's seat. will be.

However, since such lining wear alarm device is electrically connected by connecting the connector connecting plate through the rivet to the lining, the metal-based lining is not available due to the current flow, the connector connecting plate is coupled through the lining and rivets Because it is in a state of being used, it is not only usable for general lining, but also has a disadvantage in that maintenance is difficult.

The present invention was devised in view of the above-mentioned problems of the prior art, and the brake lining to automatically detect the degree of wear of the brake lining and to inform the user of the replacement time and replacement position of the brake lining to prevent damage to the brake shoes and drums. Its purpose is to provide a notification device of the exchange time of the.

One preferred embodiment of the replacement timing and replacement position notification device of the brake lining according to the present invention for achieving the above object, the brake drum rotates with the wheel, the lining friction with the brake drum, the lining rivets A brake braking device comprising two semicircular brake shoes attached by means of a wheel cylinder and extended by a wheel cylinder, wherein the wear limit of the lining is higher than the height of the rivet attached to the brake shoes corresponding to the through holes formed in the brake shoes. Insert the cylindrical wear detection sensor made by wrapping the metal conductor with the non-conductor into the insertion hole formed by lining and inserting the sensor's anti-tank part into the binding part formed on the back of the brake shoe, and inserting the plate formed under the wear detection sensor. The connecting plate inserted into the sphere is connected to the lead wire of the sensor, The grounding of the brake drum detects the conduction state of the current through the wear detection sensor, and outputs a control signal from the control unit according to the detection signal output from the wear detection sensor to send an alarm sound through the speaker and replace the lining at the same time. By displaying the position on the display, it is characterized by informing the user of the lining exchange time and replacement position.

1 shows a configuration diagram of a general brake device,

2 is a view showing a coupling structure of the brake lining wear detection sensor according to the present invention,

Figure 3 is a perspective view showing the shape of the brake lining wear detection sensor according to the present invention,

Figure 4 is a control flow diagram to detect the wear of the brake lining according to the present invention to inform the exchange time and replacement position.

*** Explanation of symbols for main parts of drawing ***

11,21: brake drum 12,22: lining

13,23: brake shoe 14: wheel cylinder

24a, 24b: binding section 25: connecting plate

26: electric wire 31: conductor

32: insulator 32a: tanjidolbu

30: wear detection sensor 41: wear detection sensor unit

42: control unit 43: display unit

44: speaker

Hereinafter, with reference to the accompanying drawings will be described in more detail the replacement timing and replacement position notification device of the brake lining according to an embodiment of the present invention.

2 is a view showing a coupling structure of the brake lining wear detection sensor according to the present invention, Figure 3 is a perspective view showing the shape of the brake lining wear detection sensor according to the present invention, Figure 4 is a brake lining according to the present invention The control flow chart shows the exchange time and exchange location by detecting wear.

Looking at the replacement timing and replacement position notification device of the brake lining according to the present invention with reference to the drawings, as described above, the brake drum 21 and the lining 22 friction with the brake drum 21 In the brake braking device, the lining 22 includes two semicircular brake shoes 23 to which the lining 22 is attached using a rivet 27 and is extended by a wheel cylinder (see FIG. 1). Corresponding to the through-holes (positions where the rivets are inserted) formed in the hole), the insertion hole (wear sensor is inserted) formed by drilling to the wear limit of the lining 22 slightly higher than the height of the rivets 27 where the brake shoes are attached. Position), and the binding portions 24a and 24b formed by inserting the cylindrical wear detection sensor 30 formed by wrapping the metal conductor 31 with the non-conductor 32 to form the anti-trivial portion 32a of the sensor on the rear surface of the brake shoe 23. ) And fasten The lower connection plate 25, the plate insertion port to be fitted formed on the sensor 30 is connected to the lead wire (31a) of the sensor thereby supplying power and ground to the brake drum 21.

In such a state, when the conduction state of the current through the wear detection sensor 30 is detected, the control unit 42 outputs a control signal in accordance with the detection signals output from the wear detection sensors 30 and 41 and through the speaker 44. At the same time as sending an alarm to display the lining replacement position on the display 43 will inform the user of the lining replacement time and replacement position. That is, when the brake lining 22 wears out beyond the prescribed limit. Since the power supply circuit is established through the conductor part 31 of the wear detection sensor, a predetermined current flows through the lining wear detection sensor 40 respectively installed at each wheel, and detects this conduction current to determine an exchange time and a replacement position. To let the user know.

The maximum height when the lining wear sensor 30 is mounted coincides with the wear limit of the lining attached to the surface of the brake shoe, and the display 43 includes linings mounted on a plurality of wheels to identify the position of the lining. By dividing or separating the display to correspond to the position of, the display can be turned on or flashed so that the lining replacement position can be known.

According to the embodiment according to the present invention as described above, it is possible to accurately inform the user of the replacement timing and replacement position of the brake lining can substantially solve the conventional problems, and when the brake lining wears to the set wear limit automatically The brake lining change alarm can be notified to the user through the speaker and the lining replacement position can be displayed on the display to prevent damage to the brake shoe or brake drum due to excessive wear of the brake lining, thereby preventing accidents due to brake malfunction. And it is effective to greatly reduce the repair cost due to brake damage.

On the other hand, the present invention is not limited to the above-described embodiment, anyone of ordinary skill in the field to which the subject innovation belongs without departing from the gist of the subject matter described in the claims will be possible to various modifications.

Claims (1)

A brake braking device comprising a brake drum rotated with a wheel, a lining that rubs with the brake drum, and two semicircular brake shoes attached by means of rivets and extended by a wheel cylinder, Corresponding to the through-hole formed in the brake shoe, a cylindrical wear detection sensor made of a non-conducting metal conductor is inserted into the insertion hole formed by drilling the lining up to the wear limit of the lining higher than the height of the rivet attaching the lining to the brake shoe. By inserting and fixing the tantalum part of the sensor to the binding part formed on the rear surface of the brake shoe, and connecting the connecting plate which is inserted into the plate insertion hole formed on the lower part of the wear detection sensor to the lead wire of the sensor and applying power and grounding the brake drum. Then, it detects the conduction state of the current through the wear detection sensor and outputs a control signal according to the detection signal output from the wear detection sensor, sends an alarm sound through the speaker and displays the lining replacement position on the display. Characterizes when the lining exchange time and exchange location Exchange time and exchange position notification device of brake linings that.