Brake pad wear warning structure

Abstract

A brake pad wear warning structure is used to install two brake pads onto a caliper. The brake pad wear warning structure passes through the caliper and each brake pad, allowing each brake pad to be installed onto the caliper. The brake pad wear warning structure includes an accommodating space and at least one outlet; the at least one outlet is connected to the accommodating space. Additionally, a display member is provided, which moves within the accommodating space. The display member has a magnetic attraction part at one end and a display part at the other end. The brake pads are made of magnetic material, and as the brake pads move during braking, they drive the magnetic attraction part to move as well. When the brake pads have worn down to a thickness that requires replacement, the display part is pushed out by the magnetic attraction part and is visible through the at least one outlet, thereby warning the user that the brake pads need to be replaced.

Description

Technical Field

[0001] This invention relates to a brake pad wear warning structure, specifically a warning structure installed on a caliper. Its characteristic is that the display unit is displaced by the attraction between the brake pad and the magnetic part. When the display unit shows the brake pad wear warning structure, it warns the user that the brake pad needs to be replaced. This is an invention with excellent practicality. Prior Technology

[0002] Modern vehicles generally use disc brakes, which refer to brake systems that use calipers to drive brake pads, allowing the brake pads to rub against the disc, thereby slowing down or stopping the vehicle. However, since braking and deceleration both rely on the friction between the brake pads and the disc, and brake pads wear out more easily than discs, brake pads need to be replaced regularly to maintain the normal operation of the braking system. Especially in modern society with widespread vehicle use, driving in busy areas with heavy traffic requires constant braking, which further accelerates the wear and tear on the brake pads.

[0003] As brake pads become thinner with use, the braking system may malfunction, potentially leading to accidents. Even worse, it can damage the brake disc, further affecting braking flexibility. Therefore, regular brake pad replacement is essential. Previously, checking for brake pad replacement was mainly done by visually inspecting the pad thickness or by removing the pads from the calipers. However, due to varying driving habits, by the time the need for inspection is realized, the brake disc may already be damaged. Furthermore, each inspection requires disassembly and reassembly, which is extremely inconvenient.

[0004] To address the aforementioned deficiencies, some manufacturers have improved the brake pad wear warning structure. Please refer to Republic of China Patent Publication No. TWI667422B, "Brake Pad Wear Warning Device and Warning Control System," which includes a caliper body, two brake pads, a resilient reset member, and a switch. The caliper body has a clamping space, a first wall, a second wall, and two pressing members. The first and second walls are located on opposite sides of the clamping space, and the two pressing members are respectively disposed on the first and second walls and can be relatively close to or far apart. The two brake pads are located within the clamping space and between the two pressing members. The resilient reset member includes a first spring arm and a second spring arm. The first and second spring arms are disposed on the two brake pads. The switch is disposed on the first spring arm and between the first and second spring arms. When the two brake pads are worn and the two abutting parts are relatively close, the two abutting parts press against the two brake pads respectively, causing the two spring arms to move closer together, thereby triggering the switch to send a signal. The user can know through the wear warning signal that the two brake pads are about to wear out or have completely worn out, so as to replace the brake pads. However, this invention still has a drawback, that is, additional electronic components need to be installed at the caliper, which may make the maintenance process more difficult for the user. Moreover, if the electronic components also need to be replaced or maintained, the user may have to spend extra money to ensure the smooth operation of the additional components.

[0005] In view of this, the inventor has devoted a lot of time to studying relevant knowledge, conducting research and development on related products, and after many experiments and tests, finally launched a brake pad wear warning structure that does not require additional electronic components and is more convenient for users to observe, thereby improving the above-mentioned shortcomings and meeting the needs of the public. Summary of the Invention

[0006] The main objective of this invention is to allow users to easily identify the need for brake pad replacement visually without installing additional electronic components in the vehicle and without disassembly. This improves upon conventional methods that require repeated disassembly and reassembly for brake pad inspection, and addresses the maintenance difficulties and additional costs caused by the need for additional electronic components in current technology. To achieve the above objectives and overcome the shortcomings of conventional methods, this invention provides a brake pad wear warning structure. This structure mounts two brake pads onto a caliper, passing through the caliper and each brake pad, enabling the brake pads to be replaced. The brake pads are mounted on the caliper, wherein: the brake pad wear warning structure includes a receiving space and at least one outlet; the at least one outlet is connected to the receiving space, and a display element is provided, which is movably located in the receiving space. One end of the display element has a magnetic attraction part, and the other end of the display element has a display part. Each brake pad is made of magnetic material, and each brake pad moves the magnetic attraction part together with it when the brake is clamped; wherein, when each brake pad is clamped, if each brake pad has worn down to the thickness that requires replacement, the display part is pushed out by the magnetic attraction part and appears on the at least one outlet, thereby warning the user that the brake pads need to be replaced.

[0007] According to the technology defined above, the advantage of this invention lies in the physical magnetic attraction between the brake pads and the magnetic suction unit, which allows the magnetic suction unit to push the display unit to move within the receiving space. As the brake pads wear thinner, the displacement distance of the brake pads increases, which in turn increases the displacement distance of the magnetic suction unit pushing the display unit. When the display unit shows the exit position, it warns the user that the brake pads need to be replaced. The user does not need to install additional electronic parts, making maintenance more convenient and without incurring additional expenses. Furthermore, when checking whether the display unit shows the exit position, it is not necessary to remove the brake pads from the calipers for inspection, making it easier and more convenient for the user. It is evident that this invention is indeed practical and progressive, and is worthy of promotion in the industry. Simple Explanation of the Diagram

[0008] The first figure is a three-dimensional schematic diagram of the present invention. The second figure is a cross-sectional view of line segment II-II in the first figure. The third figure is a three-dimensional decomposition diagram of the first figure. Figure 4 is a three-dimensional schematic diagram of the magnetic suction part and the display part of the present invention combined to form a display component. Figure 5 is a three-dimensional schematic diagram of the present invention assembled with brake pads and calipers. The sixth figure is a three-dimensional diagram of the decomposed version of the fifth figure. Figure 7 is a cross-sectional view of line segment VII-VII in Figure 5. Figure 8 is a schematic diagram showing the action of the magnetic suction part of the present invention being pulled and pushed against the display part by the brake pad when the caliper clamps the brake, which is displayed on at least one outlet. Implementation

[0009] To clearly illustrate the aforementioned objectives and effects achieved by the present invention, its features and effects are described in detail with reference to the accompanying drawings. Referring to Figures 1 to 8, the present invention provides a brake pad wear warning structure 1 for mounting two brake pads 2 onto a clamp 3. The brake pad wear warning structure 1 passes through the clamp 3 and each brake pad 2, thereby mounting each brake pad 2 onto the clamp 3. The brake pad wear warning structure 1 includes a receiving space 11 and at least one outlet 12; the at least one outlet 12 and the receiving space 11 are connected to the receiving space 11. The accommodating space 11 is connected to a display element 13, which is movably located within the accommodating space 11. One end of the display element 13 has a magnetic suction portion 132, and the other end has a display portion 131. Each brake pad 2 is made of magnetic material, and when the brake pad 2 is engaged, it causes the magnetic suction portion 132 to move along with it. If, during engagement, the brake pads have worn down to the thickness requiring replacement, the display portion is pushed by the magnetic suction portion and appears on at least one outlet, thereby alerting the user that the brake pads need to be replaced. The figures used herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0010] This invention utilizes a brake pad wear warning structure 1 to install the brake pad 2. Within the brake pad wear warning structure 1, a display element 13, comprising a magnetic attraction part 132 and a display part 131, is provided in the receiving space 11. The magnetic attraction part 132 of the display element 13 can physically magnetically attract the brake pad 2, causing the magnetic attraction part 132 to push against the display part 131 and move within the receiving space 11. When the user operates the caliper 3, the brake pads 2 will move closer together and rub against the disc, slowing or stopping the vehicle. At this time, the magnetic attraction part 132 is pulled by the brake pad 2 and further pushes the display part 131 to move. The distance of displacement increases as the brake pad 2 wears down. When the brake pad 2 wears down to 85%, the display part 131 is pushed against by the magnetic attraction part 132 and displayed on the brake pad wear warning structure 1, warning the user that the brake pad 2 needs to be replaced. In order for the brake pad 2 to successfully interact with the magnetic attraction part 132, the brake pad 2 is made of a magnetic material, such as iron, cobalt, nickel, etc. Magnetic materials do not necessarily possess magnetism, but they will become magnetized when near a magnet. In this invention, the magnetic attraction part 132 is a magnet. That is, when one of the brake pads 2 is positioned corresponding to the magnetic attraction part 132, the brake pad 2 will be magnetized and become magnetic. In this way, when the brake pad 2 is moved by the caliper 3, the brake pad 2 simultaneously moves the magnetic attraction part 132 to push the display part 131 to move. Furthermore, the magnetic attraction between the brake pad 2 and the magnetic attraction part 132 is greater than the magnetic attraction between the magnetic attraction part 132 and the brake pad wear warning structure 1. That is, the magnetic attraction between the magnetic attraction part 132 and the brake pad 2 is not affected by the magnetic attraction between the magnetic attraction part 132 and the brake pad wear warning structure 1.

[0011] Furthermore, to facilitate the installation of this invention, the brake pad wear warning structure 1 further includes a screw 14 and a limiting member 15. The receiving space 11 is located within the screw 14, and the end of the screw 14 with a screw hole forms at least one outlet 12. The limiting member 15 is assembled at the other end of the screw 14, and one end of the limiting member 15 passes through the receiving space 11 and movably abuts against the magnetic part 132. The user can tighten the screw 14 to install the brake pad 2 onto the caliper 3 and use it... The user can move the brake pad 2 by operating the caliper 3, causing the magnetic suction part 132 to move and push the display part 131. By inspecting the screw holes of the screw 14 or the external display part 131, the user can confirm whether the brake pad 2 needs to be replaced. When the brake pad 2 is worn down to 85%, the display part 131 will be displayed on at least one outlet 12 to warn the user that the brake pad 2 needs to be replaced. The limiting member 15 can be used to limit the displacement of the display part 13 within the receiving space 11 to prevent it from falling out of the receiving space 11 due to external force.

[0012] In addition, in order to allow users to accurately observe the wear level of the brake pads 2, a scale 1311 is further provided on the outer surface of the display unit 131. The scale 1311 corresponds to the wear length of each brake pad 2. Users can periodically move the brake pads 2 by actuating the caliper 3, causing the magnetic part 132 to push against the display unit 131 and observe the scale 1311 to clarify the wear level of the brake pads 2.

[0013] Furthermore, to ensure compatibility with different vehicles and to prevent the magnetic attraction of the magnetic part 132 from decreasing over long-term operation, the magnetic part 132 is movably mounted on the display part 131. The magnetic part 132 can be assembled with the display part 131 via sleeves, clips, screws, etc. Depending on the vehicle type, the user can replace it with a longer or stronger magnetic part 132 to ensure smooth operation of the magnetic attraction between the brake pad 2 and the magnetic part 132. Also, the magnetic part 132 may permanently demagnetize over long-term operation. To avoid demagnetization that would prevent the brake pad 2 and the magnetic part 132 from achieving smooth magnetic attraction, the user can periodically replace the magnetic part 132 to ensure smooth operation of the magnetic attraction between the brake pad 2 and the magnetic part 132.

[0014] 1: Brake pad wear warning structure 11: Storage space 12: Exports 13: Display component 131: Display Section 1311: Scale 132: Magnetic part 14: Screws 15: Limiting component 2: Order card 3: Calipers

Claims

1. A brake pad wear warning structure for mounting two brake pads in a caliper, the brake pad wear warning structure passing through the caliper and each brake pad, such that each brake pad is mounted in the caliper, wherein: The brake pad wear warning structure includes a receiving space and at least one outlet; the at least one outlet is connected to the receiving space, and a display element is provided, which is movably located in the receiving space. One end of the display element has a magnetic attraction part, and the other end of the display element has a display part. Each brake pad is made of magnetic material, and each brake pad moves the magnetic attraction part together with it when it is clamped. When each brake pad is clamped, if each brake pad has worn down to the thickness that requires replacement, the display part is pushed outward by the magnetic attraction part and appears at the at least one outlet, thereby warning the user that the brake pad needs to be replaced.

2. The brake pad wear warning structure as described in claim 1, wherein, The brake pad wear warning structure further includes a screw and a limiting member. The receiving space is located inside the screw. One end of the screw with a screw hole forms the at least one outlet. The limiting member is assembled at the other end of the screw. One end of the limiting member passes through the receiving space and is in contact with the magnetic part.

3. The brake pad wear warning structure as described in claim 1, wherein, The outer surface of the display unit is further provided with a scale that corresponds to the wear length of each brake pad.

4. The brake pad wear warning structure as described in claim 1, wherein, The magnetic attraction unit is located in the display unit.

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