Plastic brake pedal assembly
By designing a plastic brake pedal assembly, using injection molding and nut fastening, the process is simplified, solving the problems of complex processing, large errors, and high costs associated with traditional brake pedal assemblies, and achieving lightweight and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CHANGRONG MASCH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-04-21
AI Technical Summary
The traditional brake pedal assembly has a complex manufacturing process, resulting in large errors, heavy weight, and high cost.
The brake pedal assembly is made of plastic, including a plastic base bracket and an upper mounting bracket. It is injection molded and secured with nuts and rivets, which simplifies the process and enhances mechanical strength.
It reduces manufacturing errors, lowers material and labor costs, improves production efficiency and product durability, and is easy to use.
Smart Images
Figure CN224145928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, and in particular to a plastic brake pedal assembly. Background Technology
[0002] Traditional brake pedal assembly base components are mainly made by stamping at least two sheet metal parts and then processing them by welding and other processes. The process is complicated and involves many steps, resulting in large product processing errors, and the metal base is also heavy. Utility Model Content
[0003] In view of the problems existing in the prior art, the present invention aims to provide a plastic brake pedal assembly to solve the problems of large weight, high manufacturing cost and large processing error of the current brake pedal assembly.
[0004] To achieve the above objectives, this utility model proposes a plastic brake pedal assembly, including a base assembly and a pedal arm. The base assembly and the pedal arm are connected by a central pivot. A pedal plate is mounted on the other end of the pedal arm, and a pedal pad is mounted in front of the pedal plate. The base assembly is divided into a plastic base bracket and an upper mounting bracket. The upper mounting bracket is fastened to an injection-molded pin above the plastic base bracket by a nut. The lower middle part of the plastic base bracket has four mounting holes arranged in a matrix for fixing to the vehicle body. A mounting hole washer is press-fitted into each mounting hole. A switch bracket is fixed to the front of the plastic base bracket by rivets. The pedal arm is mounted in front of the plastic base bracket via the central pivot. A brake light switch is mounted on the switch bracket, and the pedal arm is located directly below the switch bracket. When the pedal arm rotates around the central pivot, the brake light switch can receive the change in distance between the pedal arm and the switch bracket.
[0005] As a preferred embodiment of the above solution, the lower middle part of the plastic base bracket is provided with a weight-reducing groove that runs through the front and back, and four mounting holes are distributed on the left and right sides of the weight-reducing groove.
[0006] More preferably, the plastic base bracket is provided with two left and right pivot holes for the central pivot to pass through, the pedal arm is provided with two sleeves for the central pivot to pass through, the sleeves are filled with plastic bushings, the retaining ring is provided with a hole for fixing the central pivot, one end of the central pivot has an end head, and the other end is provided with a retaining ring on the outside, and the hole on the retaining ring is installed into the corresponding slot on the central pivot for axial fixation.
[0007] More preferably, the upper mounting bracket is made of sheet metal, and is in the shape of an "L". It has a flange facing the rear side along the left and right edges of the sheet metal, and the bottom of the sheet metal has mounting holes for connecting with the vehicle body.
[0008] More preferably, the pedal piece is fitted onto the pedal pad.
[0009] More preferably, the bottom of the plastic base bracket is provided with a grid-like reinforcing rib.
[0010] More preferably, the pedal arm has a ball cage bracket on the left side of the middle section and a switch block on the right side of the middle section. The limiting pad is installed inside the switch block and is fixed below the brake signal light switch. The pedal arm, ball cage bracket, switch block, and pedal plate are fixed by welding.
[0011] The beneficial effects of this utility model are:
[0012] (1) The existing base components are replaced by plastic base brackets and upper mounting brackets. The plastic base of the plastic brake pedal is formed by plastic injection molding, which has fewer processes, reduces manufacturing errors between processes and improves yield. The plastic pedal is lighter than the metal pedal and saves more material costs. The plastic base bracket is made by injection molding. Defective plastic parts can be processed and remade, which reduces material costs.
[0013] (2) The upper mounting bracket is fixed to the plastic base bracket by injection molding embedded nails, which reduces the secondary assembly process, reduces labor costs, and improves production efficiency;
[0014] (3) The combination of the plastic base bracket and the mounting hole washer enhances the mechanical strength of the plastic parts, improves durability, and extends the service life of the plastic base bracket.
[0015] (4) When the pedal arm rotates around the central axis, the pedal arm drives the limit pad to move downward, the brake indicator light switch extends, and the brake indicator light illuminates; when the pedal pad is not under force, the brake indicator light switch does not extend, and the brake indicator light does not illuminate, making it convenient to use and easy to implement.
[0016] In summary, this utility model has a novel concept and ingenious design, reduces manufacturing costs, is lightweight yet strong, easy to use, increases product lifespan, and is easy to implement. Attached Figure Description
[0017] Figure 1 This is an overall structural diagram of the present invention.
[0018] Figure 2 This is a structural diagram of the plastic base bracket of this utility model.
[0019] Figure 3 This is a structural diagram of the pedal arm bracket of this utility model. Detailed Implementation
[0020] like Figure 1As shown in Figure 3, a plastic brake pedal assembly mainly consists of a base assembly, a switch bracket 3, a mounting hole washer 4, a nut 5, a rivet 6, a central rotating shaft 7, a retaining ring 8, a pedal arm 9, a pedal plate 10, a pedal pad 11, a sleeve 12, a brake signal light switch 13, a rotating shaft hole 14, a ball cage bracket 15, a switch contact block 16, a limit pad 17, and a weight reduction groove 18.
[0021] The base assembly consists of a plastic base bracket 1 and an upper mounting bracket 2. The lower middle part of the plastic base bracket 1 has a weight-reducing groove 18 that runs through the front and back. Four mounting holes are distributed on the left and right sides of the weight-reducing groove 18. Each mounting hole has a mounting hole washer 4 pressed into it. The bottom of the plastic base bracket 1 has a grid-like reinforcing rib. The plastic base bracket 1 has two pivot holes on the left and right sides for the central pivot 7 to pass through. The upper mounting bracket 2 is made of sheet metal and is L-shaped. It has flanges facing the rear along the left and right edges of the sheet metal. The bottom of the sheet metal has mounting holes for connecting with the vehicle body. The upper mounting bracket is fastened to the injection-molded embedded pins above the plastic base bracket 1 by nuts 5.
[0022] Two sleeves 12 are provided on the pedal arm for the central rotating shaft to pass through. Plastic bushings 19 are installed inside the sleeves. The retaining ring 8 has a hole for fixing the central rotating shaft 7. One end of the central rotating shaft 7 has a head, and the other end has a retaining ring 8 on its outer side. The hole on the retaining ring 8 is installed into the corresponding slot on the central rotating shaft 7 for axial fixation. The base assembly and the pedal arm 9 are connected through the central rotating shaft 7.
[0023] A ball cage bracket 15 is provided on the left side of the middle part of the pedal arm, and a switch block 16 is provided on the right side of the middle part. A limit pad 17 is installed inside the switch block 16 and is fixed below the brake signal light switch 13. The pedal arm 9, the ball cage bracket 15, the switch block 16, and the pedal piece 10 are fixed by welding. A pedal piece 10 is installed on the other end of the pedal arm 9 and is fitted onto the pedal pad 11.
[0024] The switch bracket assembly 3 is fixed to the front of the plastic base bracket 1 by rivets 6. The pedal arm 9 is installed in front of the plastic base bracket 1 through a central pivot. The brake signal light switch 13 is installed on the switch bracket assembly 3, and the pedal arm 9 is located directly below the switch bracket assembly 3.
[0025] When the pedal arm 9 rotates around the central pivot 7, the brake indicator switch 13 can receive the change in distance between the pedal arm 9 and the switch bracket 3.
Claims
1. A plastic brake pedal assembly, comprising a base assembly, a pedal arm (9), the base assembly and the pedal arm (9) being connected via a central pivot (7), a pedal plate (10) being mounted on the other end of the pedal arm (9), and a pedal pad (11) being mounted in front of the pedal plate (10), characterized in that: The base assembly is divided into a plastic base bracket (1) and an upper mounting bracket (2). The upper mounting bracket (2) is fastened to the injection-molded embedded pin above the plastic base bracket (1) by a nut (5). The lower middle part of the plastic base bracket (1) is provided with four mounting holes arranged in a matrix for fixing to the vehicle body. Each mounting hole is press-fitted with a mounting hole washer (4). The switch bracket assembly (3) is fixed to the front of the plastic base bracket (1) by a rivet (6). The pedal arm (9) is mounted in front of the plastic base bracket (1) through a central pivot. The brake light switch (13) is mounted on the switch bracket assembly (3), and the pedal arm (9) is located directly below the switch bracket assembly (3). When the pedal arm (9) rotates around the central pivot, the brake light switch (13) can receive the change in distance between the pedal arm (9) and the switch bracket assembly (3).
2. A plastic brake pedal assembly as in claim 1, wherein: The lower middle part of the plastic base bracket (1) is provided with a weight reduction groove (18) that runs through the front and back, and four mounting holes are distributed on the left and right sides of the weight reduction groove (18).
3. A plastic brake pedal assembly as in claim 1, wherein: The plastic base bracket (1) is provided with two left and right pivot holes (14) for the central pivot to pass through. The pedal arm (9) is provided with two sleeves (12) for the central pivot to pass through. The sleeves (12) are filled with plastic bushings (19). The retaining ring (8) is provided with holes for fixing the central pivot. One end of the central pivot has a head, and the other end is provided with a retaining ring (8). The holes on the retaining ring (8) are installed into the corresponding slots on the central pivot (7) for axial fixation.
4. A plastic brake pedal assembly as in claim 1, wherein: The upper mounting bracket (2) is made of sheet metal and is in the shape of an "L". It has a flange facing the rear along the left and right edges of the sheet metal and a mounting hole for connecting with the vehicle body at the bottom of the sheet metal.
5. A plastic brake pedal assembly as in claim 1, wherein: The pedal piece (10) is fitted onto the pedal pad (11).
6. A plastic brake pedal assembly as in claim 1, wherein: The bottom of the plastic base bracket (1) is provided with a grid-like reinforcing rib.
7. A plastic brake pedal assembly as in claim 3, wherein: The pedal arm (9) has a ball cage bracket (15) on the left side of the middle part and a switch block (16) on the right side of the middle part. The limiting pad (17) is installed inside the switch block (16) and is fixed below the brake signal light switch (13). The pedal arm (9), ball cage bracket (15), switch block (16) and pedal plate (10) are fixed by welding.