SINGLE CALIPER BODY, DOUBLE PISTON HYDRAULIC SERVICE AND PARKING BRAKE

Abstract

The invention relates to a hydraulic service and parking brake, configured for use in vehicles, which provides braking by generating friction force on the brake disc and includes the functions of a service brake (S) and a hydraulically released parking brake (P). Within the scope of the invention, the brake is configured within a single-piece caliper housing (4), and the functions of the service brake and parking brake are performed through the same caliper housing (4).

Description

1 TARIFF SINGLE CALIPER BODY, DOUBLE PISTON HYDRAULIC SERVICE AND PARKING BRAKE Technical Area 5 This invention combines the functions of a service brake and a hydraulically released parking brake in a single caliper housing. It relates to a hydraulic service and parking brake that operates using a dual-piston mechanism. State of the Art 10 In hydraulic brake systems used in vehicles, there are service brake and parking brake functions. They are mostly designed as independent structures, especially hydraulic systems. In release parking brakes, a single unit is used to obtain the necessary clamping force. 15 piston brake systems are used together and these systems are mounted on separate cast brackets. The systems in which it is located are known. In such systems, the hydraulic flow between the parking brakes, This is provided via external hydraulic hoses and fittings. In previous techniques, two single-piston hydraulic release parking brakes were used together; This necessitates an additional cast bracket, which increases the total weight of the brake system and production costs. This increases the cost. Also, external hydraulic hoses are used between the parking brakes. Fasteners cause both assembly complications and hydraulic leaks. It increases the risk. In addition, in conventional brake systems, the disc rotation direction acting on the inner and outer brake pads is 25°. The tangential braking forces are directly transmitted by the caliper body. This situation leads to additional mechanical stresses on the caliper body; over time This can lead to a reduction in the fatigue life of the caliper body and irregularities in the brake pads during use. This can lead to uneven wear. Additionally, the use of different calipers and platforms for the service brake and parking brake reduces the need for separate parts. increasing diversity; additional complexities in production, assembly and maintenance processes. is giving birth. 2 In conclusion, due to the negative aspects described above and the current solutions, the subject matter is... Due to its shortcomings, an improvement is needed in the relevant technical field. It has been made. Purpose of the Invention 5 The main purpose of the invention is to combine the functions of the service brake and the hydraulic release parking brake with a single caliper. a hydraulic service and parking brake that operates with a dual-piston structure within its housing It is about developing. Another objective of the invention is to combine a dual-piston hydraulic release parking brake structure with a single caliper. by being constructed inside the housing, additional brackets, hydraulic hoses and fittings can be added. The goal is to eliminate the need for it. Another aim of the invention is to reduce the overall weight and production cost of the braking system while achieving 15 The goal is to reduce the risk of hydraulic leaks. Another aim of the invention is to use a common caliper body for both the service brake and the parking brake. The goal is to reduce the variety of parts and simplify the production and assembly processes. The structural and characteristic features and all the advantages of the invention are given in the figures below. Thanks to the detailed explanation written with references to the figures, it becomes clearer. This will be understood, and therefore the evaluation should also take these figures and detailed explanations into account. It must be done by taking it. Figures that will help understand the invention. Figure 1; top view of the caliper housing of the hydraulic service and parking brake, which is the subject of the invention. It is a perspective view. Figure 2; a side perspective of the carrier bracket for the hydraulic service and parking brake, which is the subject of the invention. 30 It is the appearance. Figure 3; side view of the parking brake function of the hydraulic service and parking brake, which is the subject of the invention. It is a perspective view. Figure 4; a top view of the parking brake function of the hydraulic service and parking brake, which is the subject of the invention. This is a cross-sectional view. 35 3 Figure 5; side view of the service brake function of the hydraulic service and parking brake, which is the subject of the invention. It is a perspective view. Figure 6; a top view of the service brake function of the hydraulic service and parking brake, which is the subject of the invention. This is a cross-sectional view. Explanation of Part References S. Service brake P. Parking brake 1. Brake disc 10 2. Inner brake pad 3. Outer brake pads 4. Caliper body 4a. First horizontal support surface. 4b. First vertical support surface 15 4c. Hydraulic transfer channels 5. Support bracket 5a. Second horizontal support surface. 5b. Second vertical support surface. 6. Pistons 20 7. Manual adjustment shaft 8. Dish spring 9. Repulsive element 10. Locking nut 11. Cover 25 12. Protective cover 13. Brake pad pins 14. Brake pad springs 15. Safety ring 16th Segment 30 Detailed Description of the Invention This detailed description explains that the hydraulic service and parking brake, which is the subject of the invention, is the preferred method. Their structures are explained solely for the purpose of better understanding the subject. 35 4 The invention is a system designed for use in vehicles that applies friction force on a brake disc. It provides braking by creating a service brake and hydraulic release parking brake function. The invention relates to a hydraulic service and parking brake that includes both components. Within the scope of this invention, the brake in question is defined as follows: It is structured within a single-piece caliper housing, and the service brake and parking brake are 5 performing their functions through different machining options on the same caliper body has been provided. The mentioned hydraulic service and parking brake consists of a brake disc (1) and two opposite sides of this brake disc (1). including an inner brake pad (2) and an outer brake pad (3) located next to it, and the brake pads in question are 10 a single brake system that provides braking by compressing the brake disc (1) It includes at least one caliper body (4) which is part of it, and also,  bearing of the outer brake pad (3) on the caliper body (4) in question Designed to provide brake pad width and external braking during braking. at least one first horizontal 15 bearing by counteracting the tangential forces acting on the brake pad (3). support surface (4a);  On the caliper body (4), the outer pad (3) is positioned and at least one first vertical support surface (4b) that prevents it from falling during assembly;  Enabling the inner lining (2) to be mounted independently of the caliper body (4), For this purpose, at least one second horizontal support is required for the positioning of the inner lining (2) 20 including surface (5a) and at least one second vertical support surface (5b) and during braking to carry the tangential braking forces acting on the inner brake pad (2) at least one carrier bracket is configured (5);  A drive with at least two pistons (6) located inside the caliper body (4) mechanism 25 It includes. Thanks to this structural arrangement of the mentioned caliper body (4), the same Hydraulic pressure is applied to the caliper body (4) by means of pistons (6) The service brake (S) function is activated both when hydraulic pressure is absent and when the spring is activated. combined with the hydraulic release parking brake (P) function activated by force. This is ensured. 30 In a sample application of the invention, the hydraulic service and parking brake is connected to a brake disc (1) and this brake an inner pad (2) and an outer pad (3) are located on opposite sides of the disc (1) It is structured to include. These brake pads (2, 3) are made of a single piece. caliper body (4) and a carrier bracket (5) that works with this caliper body (4) 35 It provides braking by compressing the brake disc (1) through the external brake pad (3), first horizontal support surface (4a) formed on caliper body (4) and It is supported on the first vertical support surface (4b) and during braking, the outside tangential forces acting on the brake pad (3) through the caliper body (4) It is carried. The inner pad (2) is carried independently of the caliper body (4) by the carrier bracket (5) 5 second horizontal support surface (5a) and second vertical support surface (5b) created on it It is mounted on a bearing and acts as a tangential brake on the inner brake pad (2) during braking. The forces are transmitted through the carrier bracket (5). Inside the caliper body (4) Thanks to the drive mechanism which includes at least two pistons (6) positioned, the service brake (S) In its function, hydraulic pressure is applied to the pistons (6) to the inner lining (2) and the brake disc (1) 10 This ensures accurate movement. The caliper body (4) slides on the guide pins. moving in the axial direction and the outer brake pad (3) also moving towards the brake disc (1) This is provided. In the case of parking brake (P) function, if there is no hydraulic pressure, The inner lining (2) is pressed against the brake disc by the force exerted by the spring elements associated with the pistons (6). (1) applying pressure, with the reaction force taken from the brake disc (1) the caliper body (4) guide 15 By sliding on the pins, the outer brake pad (3) is made to apply pressure to the brake disc (1) and The parking brake (P) is activated. In this way, the caliper housing (4) as described above Thanks to its structural arrangement, it has a service brake (S) and a hydraulically released parking brake (P). The functions are performed together on the same caliper body (4), and the brake The number of parts in the system is reduced, resulting in a compact structure. 20 In a preferred application of the invention, the caliper body (4), caliper body (4) to transmit hydraulic pressure to the pistons (6) located inside It includes hydraulic transfer channels (4c). These hydraulic transfer channels (4c) Thanks to this, the service brake (S) and hydraulic release parking brake (P) functions are available for 25 seconds. The hydraulic pressure required for this is generated through the caliper body (4). It is being directed, reducing the need for external hydraulic coupling elements. In a preferred application of the invention, the aforementioned caliper body (4) is on the outside. Positioning of the brake pad (3) and resisting the forces generated during braking 30 for the purpose of the first horizontal support surface (4a) and the first vertical support surface (4b) It has been created. The first horizontal support surface (4a) mentioned here is preferably the outer brake pad. (3) will extend along the width of the brake pad and where the brake pad contacts the brake disc (1). arranged parallel to the surface and acting on the outer brake pad (3) during braking It ensures that tangential forces are transmitted through the caliper body (4). The aforementioned 35 6 The first vertical support surface (4b) is perpendicular to the plane of the brake disc (1) of the outer brake pad (3). ensures its positioning and prevents the brake pad from coming loose during assembly. It is structured as a limiting surface. These two support surfaces (4a, 4b) together form the exterior the brake pad (3) is securely seated on the caliper housing (4) and braking It ensures that the loads are transferred through the caliper body (4). 5 In a preferred application of the invention, the inner lining on the carrier bracket (5) mentioned above (2) positioning and transmission of the forces acting on the inner brake pad (2) during braking. second horizontal support surface (5a) and second vertical support surface (5b) for the purpose of It was created. The second horizontal support surface mentioned (5a) has a pad width of 10 for the inner pad (2). arranged to extend in the direction of the inner brake pad (2) during braking It ensures that the tangential braking forces acting on it are transmitted through the carrier bracket (5). The second vertical support surface mentioned (5b) is perpendicular to the plane of the brake disc (1) of the inner pad (2). ensuring that it is positioned in the correct direction and that the inner brake pad (2) is removed from its place during assembly It is structured as a limiting surface that prevents it from escaping. In this way, the second 15 horizontal support surface (5a) and second vertical support surface (5b), carrier bracket of the inner lining (2) (5) to be securely supported on the caliper housing (4) and braking loads Instead, it ensures that the transfer is made via the carrier bracket (5). In a preferred application of the invention for the parking brake (P) function, the hydraulic 20 mentioned above service and parking brake, at least one manual adjustment shaft (7), at least one cup spring (8) within the structure, At least one push element (9) associated with the pistons (6), at least one locking nut (10) and at least one It includes a cover (11). In this structure, the satellite dish (8) is used in the absence of hydraulic pressure. The spring force it applies is transmitted to the pistons (6) via the pusher element (9) and the pistons (6) compressing the inner pad (2) towards the brake disc (1) and the reaction force taken from the brake disc (1) 25 with the caliper body (4) sliding on the guide pins, the outer pad (3) puts pressure on the brake disc (1). The parking brake (P) is activated by applying hydraulic pressure. When applied, the pistons (6) move under the effect of hydraulic force, and the cup spring (8) by compressing and relieving the pressure on the brake pads (2, 3) the parking brake (P) is released. The manual adjustment shaft (7) and locking nut (10) are left to prevent brake pad and brake disc wear. depending on the gaps that form, adjustment and, if necessary, the parking brake (P) function It allows for manual control. In the service brake (S) function, a preferred application of the invention is mentioned. Hydraulic service and parking brakes are mounted on pistons (6) located inside the caliper housing (4) 35 7 By applying hydraulic pressure, the pistons push the inner lining (2) towards the brake disc (1) by moving and the reaction force taken from the brake disc (1) the caliper body (4) guide By sliding on the pins, the outer brake pad (3) is made to apply pressure to the brake disc (1) and Thus, braking is performed. During the operation of the service brake (S), the brake pads (2, 3) the braking forces acting on the outer brake pad (3) are the first 5 on the caliper body (4) from the support surfaces (4a, 4b) and from the inner brake pad (2) on the carrier bracket (5) The service brake (S) is carried over the second support surfaces (5a, 5b). Thanks to this structure, the service brake (S) The function is hydraulically pressure controlled, independently of the parking brake (P) function. is being carried out. In a preferred application of the invention, the mentioned caliper body (4) is located inside mechanical and hydraulic systems for performing parking brake (P) functions. In order to protect the components from external factors, the caliper body (4) It has at least one protective cover (12). The aforementioned protective cover (12), Manual adjustment shaft (7), cup spring (8), piston (6), push element (9) of the parking brake (P) mechanism, 15 Locking nut (10) and similar auxiliary parts are protected from environmental pollutants, impacts and This ensures protection from similar external influences. In a preferred application of the invention, the aforementioned hydraulic service and parking brake, the inner brake pad (2) and keeping the outer brake pad (3) in the correct position and vibrations during braking 20 Multiple brake pins (13), multiple brake springs (14) and multiple brake springs for limiting Includes safety retaining ring (15). Brake pins (13) and brake springs (14), brake pads (2, 3) Contributes to stable positioning during assembly and operation, while ensuring safety. The retaining ring (15) prevents the parts in question from coming out of place unintentionally. It serves as a security element. 25 In a preferred application of the invention, the hydraulic service and parking brake, caliper housing (4), It contains at least one segment (16) positioned in relation to the cover (11) and related The pistons (6), the pusher element (9) and the manual adjustment shaft (7) are axially adjusted using this segment (16). It is ensured that it is held in place in the correct direction. The 30 mentioned is also for the service brake (S) function. Hydraulic service and parking brake preferably in place with cover (11) and cover (11) axially in place. It includes the retaining ring (16) which holds it in place. The aforementioned hydraulic service and parking brake preferably, the caliper body (4) and the manual adjustment shaft (7), cover (11) and similar auxiliary elements It includes at least one o-ring located in the connection areas between them. The aforementioned o-ring... 8 It contributes to both ensuring leak tightness and maintaining system integrity. It is located. A preferred application of the invention is the hydraulic service and parking brake, caliper. In order to ensure the leak tightness of the hydraulic components located inside the body (4), 5 In relation to pistons (6), it includes piston seals and dust seals. Piston seals, seal between pistons (6) and caliper body (4) operating under hydraulic pressure By providing this, it ensures the retention of hydraulic fluid. Dust seals, on the other hand, By positioning the pistons (6) in the areas in contact with the external environment, dust, dirt and similar It prevents foreign substances from entering the system and ensures the piston seals function properly. This extends the service life of the sealing elements, both for the service brake (S) and the parking brake. It contributes to the reliable and long-lasting operation of the brake (P) functions. Thanks to this invention, the service brake (S) and hydraulically released parking brake (P) functions are combined into a single unit. It can be realized together in a caliper housing (4) in a modular structure, and brake 15 The system achieves a more compact structure by reducing the number of parts; caliper body The first horizontal and first vertical support surfaces (4a, 4b) created on (4) and the carrier Second horizontal and second vertical support surfaces (5a, 5b) created on bracket (5) tangential forces generated during braking via the outer brake pad (3) caliper The loads are carried by the carrier bracket (5) in terms of the body (4), inner brake (2) 20 They are separated and the mechanical stresses on the caliper body (4) are reduced; also Assembly and construction of two brake pads, inner brake pad (2) and outer brake pad (3) Maintenance procedures are simplified, production costs are reduced, and system reliability is improved. is increased; through hydraulic transfer channels created inside the caliper body (4) By providing hydraulic pressure transmission to the pistons (6), the need for external hydraulic connections is reduced. 25 and leakage risks are minimized; however, the parking brake (P) function Its automatic activation in the absence of hydraulic pressure ensures operational safety. increasing clearances due to brake pad (2, 3) wear thanks to the manual adjustment mechanism. easily compensated for, ensuring long-term and reliable operation of the braking system. is provided. 30

Claims

9 REQUESTS 1. Designed for use in vehicles, it provides friction force on the brake disc. braking is achieved by creating a service brake and a hydraulically released parking brake. capable of offering the function and with a brake disc (1) and 5 on opposite sides of this brake disc (1) an inner brake pad (2) and an outer brake pad (3) located in the said brake pads a hydraulic service that provides braking by compressing the brake disc (1) It has a parking brake and its feature is;  Service brake and parking brake functions are performed on the same caliper body with different operations. The option to perform this function requires at least one single-piece caliper 10. its body (4);  bearing of the outer brake pad (3) on the caliper body (4) in question designed with a brake pad width that will provide and during braking at least one bearing by resisting the tangential forces acting on the outer brake pad (3) first horizontal support surface (4a); 15  On the caliper body (4) that enables the positioning of the outer pad (3). and at least one primary vertical support to prevent it from falling during assembly its surface (4b);  the inner lining (2) bearing independently of the caliper body (4) providing at least one 20 for positioning the inner brake pad (2) for this purpose. second horizontal support surface (5a) and at least one second vertical support surface (5b) tangential brake which includes and acts on the inner brake pad (2) during braking at least one carrier configured to facilitate the transport of forces bracket (5);  A drive with at least two pistons (6) located inside the caliper body (4) 25 mechanism It includes.

2. A hydraulic service and parking brake conforming to Claim 1, with the following feature: parking brake (P) function. Within the structure, there must be at least one manual adjustment shaft (7), at least one cup spring (8), pistons (6) 30 at least one push element (9), at least one locking nut (10) and at least one cover associated with it (11) is the presence of.

3. A hydraulic service and parking brake conforming to Claim 2, with the following features: pistons (6), pushrods Positioned in relation to element (9) and manual adjustment shaft (7), these parts It contains at least one segment (16) that ensures it is held in place in the axial direction.

4. A hydraulic service and parking brake conforming to claim 3, with the following features: service brake (S) 5 In the structure for its function, the cover (11) and the axial direction of this cover (11) It includes the aforementioned segment (16) which ensures it is held in place.

Images