KR20220106654A - Direct-Acting Self-Energizing Brake Caliper - Google Patents

Abstract

According to the present invention, a direct-acting self-energizing brake caliper is used in a braking device including: a first braking unit for applying a braking force to an inner brake pad; and a second braking unit for applying a braking force to an outer brake pad. The direct-acting self-energizing brake caliper comprises: a caliper bracket fixed to the body of a device to be braked; a first caliper arm including a first end rotatably connected to the caliper bracket with respect to a first rotary shaft extending in the radial direction of a wheel, and a second end rotatably connected to the inner brake pad at a first point with respect to a second rotary shaft parallel to the first rotary shaft; and a second caliper arm including a first end rotatably connected to the caliper bracket with respect to a third rotary shaft extending in the radial direction of the wheel, and a second end rotatably connected to the outer brake pad at a second point with respect to a fourth rotary shaft parallel to the third rotary shaft. Therefore, the direct-acting self-energizing brake caliper can operate in various structures of braking devices where the braking force of a driving device is directly applied to the brake pads.

Description

Direct-Acting Self-Energizing Brake Caliper

The present invention relates to a self-reinforced brake caliper, and by amplifying the braking force generated by a driving device such as a hydraulic cylinder or an electric motor to a greater extent to increase the braking force while preventing the self-locking phenomenon due to a wedge structure from occurring. It's about the brake caliper.

In the hydraulic brake system, when the driver presses the brake pedal, the pressure generated in the master cylinder is converted into braking force by the disc brake caliper or the drum brake wheel cylinder. A device for amplifying this braking force is a self-energizing brake. For example, a self-energizing brake using a ball and a ramp disclosed in US Patent No. 5,012,901, US Patent No. 6,318,513, There are magnetically reinforced brakes using a wedge effect disclosed in US2008/0230330 A1, US2009/0065311 A1.

However, the existing self-reinforced brake has a complicated structure, so the mass productivity is low and the manufacturing cost is high. is not practically applied to vehicles.

In addition, an electro-mechanical brake (EMB) caliper driven by an electric motor is used in an electric braking device (Brake-by-wire). In order to use this for a front-wheel disc brake that requires a large braking force, a braking force generated by driving the motor is used. needs to be greatly amplified.

The inventor of the present invention invented a magnetically reinforced brake caliper capable of solving the problems of the prior art, which was registered as Korean Patent No. 10-2043696 and US Patent No. 10,926,744.

The present invention relates to a self-reinforcing brake caliper of a direct drive type in a manner in which the force of a driving device is directly applied to a brake pad without passing through a caliper arm, unlike the above patent.

Korean Patent No. 10-2043696 (Notice on November 12, 2019)

An object of the present invention is to provide a self-reinforced brake caliper capable of operating in a structure in which a braking force of a driving device is directly applied to a brake pad without passing through a caliper arm.

The self-reinforced brake caliper according to the present invention is used in a braking device including a first braking unit for applying a braking force to an inner brake pad and a second braking unit for applying a braking force to an outer brake pad, and includes a body of the braked device. a caliper bracket fixed to the unit; a first end rotatably connected to the caliper bracket with respect to a first axis of rotation extending in a radial direction of the wheel; and a second end rotatably connected to the inner brake pad at a first point about a second axis of rotation parallel to the first axis of rotation. a first caliper arm comprising two ends; a first end rotatably connected to the caliper bracket with respect to a third axis of rotation extending in the radial direction of the wheel; and a third end rotatably connected to the outer brake pad at a second point about a fourth axis of rotation parallel to the third axis of rotation. and a second caliper arm comprising two ends.

The first caliper arm may be a separate component separate from the first brake unit, and the second caliper arm may be a separate component separate from the second brake unit.

At least one of the first caliper arm and the second caliper arm may be connected to the caliper bracket and the return spring.

A plurality of caliper arms of at least one of the first caliper arm and the second caliper arm may be provided.

Each of the plurality of first caliper arms or the plurality of second caliper arms may be provided in parallel.

At least a portion of the first caliper arm and the second caliper arm may be disposed in a space provided in the caliper bracket.

The braking device includes a piston that applies a braking force to either one of the inner brake pad or the outer brake pad, and a caliper finger that slides in an inner and outer direction along a sliding pin according to the operation of the piston and applies a braking force to the other brake pad. may be a floating caliper type braking device, and the piston may be provided with a space allowing rotation of the first caliper arm.

The braking device may be a fixed caliper type braking device including a first piston that applies a braking force to the inner brake pad and a second piston that applies a braking force to the outer brake pad, and the first piston includes the first caliper arm. A space allowing rotation may be provided, and the second piston may be provided with a space allowing rotation of the second caliper arm.

A plurality of pistons may be provided.

Advantageous Effects of Invention According to the present invention, there is provided a self-reinforced brake caliper capable of operating in various types of braking devices in which the braking force of the driving device is directly applied to the brake pads.

1 is a conceptual diagram for explaining the kinematic relationship and operation of a self-reinforced brake caliper according to the present invention used in a direct-pull type braking device.
FIG. 2 is a conceptual diagram in which some components of the direct-pull type braking system are added to FIG. 1; FIG.
3 is a conceptual diagram for explaining the kinematic relationship and operation of a self-reinforced brake caliper according to the present invention used in a cable-type direct-pull braking device.
4 is a conceptual diagram for explaining the kinematic relationship and operation of the self-reinforced brake caliper according to the present invention used in a floating caliper type braking device.
5 is a conceptual view in which some components of the floating caliper type braking system are added to FIG. 4 .
6 is a conceptual diagram for explaining the kinematic relationship and operation of a magnetically reinforced brake caliper according to another embodiment of the present invention used in a floating caliper type braking device.
7 is a conceptual view in which some components of the floating caliper type braking system are added to FIG. 6 .
8 is a conceptual diagram for explaining the kinematic relationship and operation of the self-reinforced brake caliper according to the present invention used in a fixed caliper type braking device.
9 is a conceptual diagram for explaining the kinematic relationship and operation of a self-reinforced brake caliper according to another embodiment of the present invention used in a fixed caliper type braking device.
10 is a conceptual view in which some components of the fixed caliper type braking device are added to FIG. 9 .
11 is a conceptual diagram for explaining the kinematic relationship and operation of a magnetically reinforced brake caliper according to another embodiment of the present invention used in a floating caliper type braking device.
12 is a conceptual view in which some components of the floating caliper type braking system are added to FIG. 11 .
13 is a conceptual diagram for explaining the kinematic relationship and operation of a magnetically reinforced brake caliper according to another embodiment of the present invention used in a floating caliper type braking device.
FIG. 14 is a conceptual view in which some components of the floating caliper type braking system are added to FIG. 13;
15 is a conceptual diagram for explaining the kinematic relationship and operation of a self-reinforced brake caliper according to another embodiment of the present invention used in a fixed caliper type braking device.
FIG. 16 is a conceptual view in which some components of the fixed caliper type braking system are added to FIG. 15;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In this specification, only the minimum components necessary for the description of the present invention are described, and components not related to the essence of the present invention are not mentioned. And it should not be construed as an exclusive meaning including only the mentioned components, and it should be construed as a non-exclusive meaning that may also include other components not mentioned.

As used herein, “first”, “second” or similar expressions are used to distinguishly express the same or similar components or to distinguish the names of steps constituting the present invention, and the order It is not meant to mean or to be plural.

The exemplary embodiments described herein provide a general understanding of the principles of the structure, function, manufacture and use and methods of the devices disclosed herein. One or more such embodiments are illustrated in the accompanying drawings. It will be understood by those skilled in the art that the apparatus and methods specifically described herein and shown in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the present invention is defined by the claims. Features shown and described in connection with one exemplary embodiment may also be combined with features of another embodiment. Such modifications or variations are intended to be included within the scope of the present invention.

As used herein, “or” is defined to include not only any one of the listed plurality of elements, but also all of the listed plurality of elements and some elements of the listed plurality of elements.

A component described in this specification is defined to include not only a singular component, but also a plurality of components when provided in plural, unless inoperative.

As used herein, the term “connection” is defined to include not only a structure in which two components are directly connected, but also a structure in which two components are connected through another medium.

In this specification, the wheel 3 is a rotating body or rotor to be stopped, and in the case of a rim brake used for a bicycle, etc., it means a wheel of a moving body including a rim, but in the case of a caliper brake used for an automobile, the wheel is a brake disk can be

As used herein, with respect to the vehicle brake system, "inboard" means the vehicle side with respect to the wheels of the vehicle, and "outboard" means the outside of the vehicle with respect to the wheels of the vehicle. However, in the case of a two-wheeled transportation means such as a bicycle rather than a vehicle, the inner and outer sides may be arbitrarily determined. For example, in the case of a braking device used for a motorcycle or a bicycle, when the left side of the occupant is defined as the inside, the right side of the occupant becomes the outside, and when the right side of the occupant is defined as the inside, the left side of the occupant may be the outside.

In the drawings attached to this specification, the direction "A" means the direction in which the wheel 3 slides with respect to the brake pad at the position where the brake pad contacts the wheel 3, and the direction "B" refers to the brake pad 100, 200) means the direction of the braking force applied to it.

As used herein, the term "radial direction" means not only the direction extending from the center of the wheel toward the wheel rim, but also a direction parallel thereto and extending to intersect the wheel rim from the inside of the wheel without passing through the center of the wheel. direction is also included.

1 is a conceptual diagram of a self-reinforced brake caliper according to the present invention used in a direct-pull type braking system. is shown.

The direct-pull type braking system is a type of braking system used in bicycles, and when the brake is operated, the cable 4 is connected to the first rotating vertical arm 1 and the second rotating vertical arm 2 by the noodle 7 . ) is rotated toward the wheel rim (3) to brake. The supporting part 5 of the first rotating vertical arm 1 and the supporting part 6 of the second rotating vertical arm 2 are fixed to the frame, and the first rotating vertical arm 1 and the second rotating vertical arm 2 are respectively fixed to the frame. ) including the axis of rotation. Since the direct-pull type braking device is a well-known technology, detailed descriptions of other components that are not related to the present invention will be omitted.

The self-reinforced brake caliper according to the present invention used in a direct-pull type braking device includes a caliper bracket 10 , a first caliper arm 20 , and a second caliper arm 30 . The caliper bracket 10 may be fixed to the body portion of the braked device or the wheel fork of the wheel.

The inner brake pad 100 includes a first friction material 110 that applies a braking force in contact with the inside of the wheel rim 3 , and the outer brake pad 200 contacts the outside of the wheel rim 3 to apply a braking force. and a second friction material 210 to be applied. Hereinafter, it should be understood that configurations of the inner brake pad 100 and the outer brake pad 200 are substantially the same in other embodiments.

The first caliper arm 20 has a first end 21 rotatably connected to the caliper bracket 10 , and a second end 22 rotatably connected to the inner brake pad 100 . The first end 21 is connected to the caliper bracket 10 so as to be rotatable with respect to a first rotational axis extending in the radial direction of the wheel. The second end 22 is connected to the inner brake pad 100 at a first point P1 rotatably about a second axis of rotation parallel to the first axis of rotation. At least a portion of the first caliper arm 20 may be disposed in a space 80 provided in the caliper bracket 10 . Space 80 may be provided as a recess.

The second caliper arm 30 has a first end 31 rotatably connected to the caliper bracket 10 , and a second end 32 rotatably connected to the outer brake pad 200 . The first end 31 is connected to the caliper bracket 10 rotatably about a third axis of rotation extending in the radial direction of the wheel. The third rotation shaft may be the same rotation shaft as the first rotation shaft, or may be different rotation shafts spaced apart from each other. The second end 32 is connected to the outer brake pad 200 at a second point P2 rotatably about a fourth axis of rotation parallel to the third axis of rotation. At least a portion of the second caliper arm 30 may be disposed in a space 80 provided in the caliper bracket 10 .

Even if there is no separate description or illustration, it is assumed that the first caliper arm or the second caliper arm may be disposed in the space 80 provided in the caliper bracket 10 in other embodiments described below, unless clearly stated otherwise. should be understood

The first caliper arm 20 or the second caliper arm 30 may be connected to the caliper bracket 10 by a return spring 40 .

Even if there is no separate description or illustration, it should be understood that the first caliper arm or the second caliper arm may be connected to the caliper bracket 10 by a return spring in other embodiments described below, unless otherwise clearly described.

As described above, the first rotational shaft and the third rotational shaft are shafts extending in the radial direction of the wheel, and should be understood to have the same meaning in other embodiments below, even if not specifically mentioned.

When the occupant operates the brake, the first rotating vertical arm 1 and the second rotating vertical arm 2 move the inner brake pad 100 and the outer brake pad 200 to the wheel rim 3 by the noodle 7, respectively. ) to apply the brake. When the inner brake pad 100 is pressed toward the wheel rim 3 , the first caliper arm 20 rotates in the clockwise direction of FIG. 1 and applies an additional braking force to the inner brake pad 100 to produce a self-reinforcing effect. When the outer brake pad 200 is pressed toward the wheel rim 3, the second caliper arm 30 rotates counterclockwise in FIG. 1 and applies an additional braking force to the outer brake pad 200 to produce a self-reinforcing effect. .

3 shows an embodiment in which the self-reinforced brake caliper according to the present invention is applied to a cable-type direct-pull braking device. In the cable type direct-pull braking system, when the brake is operated, the cable 50 connected to the inner brake pad 100 and the outer brake pad 200 is pulled, thereby generating a braking force. Since the cable-type direct-pull braking device is a known technology, detailed descriptions of other components that are not related to the present invention will be omitted.

The self-reinforced brake caliper according to the present invention includes a caliper bracket 10 , and a first caliper arm 120 and a second caliper arm 130 . The first caliper arm 120 and the second caliper arm 130 may be connected to the caliper bracket 10 by a return spring 40 . The caliper bracket 10 may be fixed to the body portion of the braked device or the wheel fork of the wheel.

The first caliper arm 120 includes a first end 121 rotatably connected to a first rotational shaft extending in a radial direction of the wheel, and a first at a third point P3 to the inner brake pad 100 . and a second end 122 rotatably connected about a second axis of rotation parallel to the axis of rotation. The third point P3 may be a point at which the cable 50 is connected to the inner brake pad 100 or may be another point.

The second caliper arm 130 includes a first end 131 rotatably connected to a third rotational shaft extending in a radial direction of the wheel, and a third at a fourth point P4 to the outer brake pad 200 . and a second end 132 rotatably connected about a fourth axis of rotation parallel to the axis of rotation. The fourth point P4 may be a point at which the cable 50 is connected to the outer brake pad 200 or may be another point.

When the occupant operates the brake, the inner brake pad 100 and the outer brake pad 200 are pressed toward the wheel rim 3 by the cable 50 to perform braking. When the inner brake pad 100 is pressed toward the wheel rim 3 , the first caliper arm 120 rotates clockwise in FIG. 3 and applies an additional braking force to the inner brake pad 100 , thereby generating a self-reinforcing effect. When the outer brake pad 200 is pressed toward the wheel rim 3, the second caliper arm 130 rotates counterclockwise in FIG. 3 and applies additional braking force to the outer brake pad 200, thereby producing a self-reinforcing effect. .

4 and 5 show a self-reinforced brake caliper according to the present invention used in a floating caliper type braking device.

The floating caliper type braking device includes a piston 61 that applies a braking force to either side of the inner brake pad 100 or the outer brake pad 200, and a sliding pin ( 52), and includes a floating caliper housing 60 including caliper fingers 65 that slide in an inner and outer direction and are connected to apply a braking force to the brake pad of the other side. 4 and 5 , the piston 61 applies a braking force to the inner brake pad 100 , but the piston 61 applies a braking force to the outer brake pad 200 , and the caliper fingers 65 apply the braking force to the inner brake It may be disposed on the pad 100 side. The piston 61 may be provided as a single piston or a plurality of pistons 61 may be provided. Since the floating caliper type braking device is a well-known technology, detailed descriptions of other components that are not related to the present invention will be omitted.

The self-reinforced brake caliper of the present invention according to the embodiment shown in FIGS. 4 and 5 includes a caliper bracket 10 , a first caliper arm 220 , and a second caliper arm 230 .

The caliper bracket 10 may be fixed to the body of the braked device.

The first caliper arm 220 includes a first end 221 rotatably connected to the caliper bracket 10 with respect to a first rotational shaft extending in the radial direction of the wheel, and a piston 61 to which a braking force is applied. It includes a second end 222 rotatably connected to the brake pad (inner brake pad 100 in FIGS. 4 and 5 ) at a fifth point P5 with respect to a second axis of rotation parallel to the first axis of rotation.

The piston 61 may be provided with a space 63 allowing the first caliper arm 220 to rotate at the fifth point P5 .

The second caliper arm 230 includes a first end 231 rotatably connected to the caliper bracket 10 with respect to a third rotational shaft extending in the radial direction of the wheel, and the first caliper arm 220 connected thereto. It is rotatably connected to a brake pad other than the brake pad (in the embodiment shown in FIGS. 4 and 5 , the outer brake pad 200 ) about a fourth rotation axis parallel to the third rotation axis at the sixth point P6 and a second end 232 .

A space 64 may be provided in the caliper fingers 65 to allow the second caliper arm 230 to rotate at the sixth point P6 .

When the piston 61 generates a driving force, the inner brake pad 100 is pressed toward the wheel rim 3 in the B direction, and the caliper fingers 65 are driven by the reaction force to the outer brake pad 200 according to the driving of the piston 61 . ) is pressed in the B direction while braking force is applied.

When the inner brake pad 100 and the outer brake pad 200 are pressed toward the wheel rim 3 , the first caliper arm 220 rotates clockwise in FIG. 4 , and the second caliper arm 230 rotates clockwise in FIG. 4 . As it rotates in the opposite direction, a self-reinforcing effect is generated accordingly, thereby increasing the braking force.

6 and 7 show a self-reinforced brake caliper according to another embodiment of the present invention used in a floating caliper type braking device.

The embodiment shown in FIGS. 6 and 7 is different from the embodiment of FIGS. 4 and 5 in that two first caliper arms 220a and 220b and two second caliper arms 230a and 230b are provided. .

The first caliper arms 220a and 220b may be provided parallel to each other, respectively, a first end (not shown) connected to the caliper bracket 10 rotatably about a first rotational axis, and 5-1 It includes second ends 222a and 222b rotatably connected to the inner brake pad 100 at a point P5a and a point 5-2 , with respect to a second axis of rotation parallel to the first axis of rotation.

The second caliper arms 230a and 230b may be provided parallel to each other, and the first ends 231a and 231b connected to the caliper bracket 10 rotatably about the third rotation axis, respectively, and 6-1 and second ends 232a and 232b rotatably connected to the outer brake pad 200 at points P6a and 6-2 points P6b with respect to a rotation axis parallel to the third rotation axis.

The piston 61 may be disposed to apply a braking force to the inner brake pad 100 between the 5-1 th point P5a and the 5-2 th point P5b.

The caliper fingers 62 may be disposed to apply a braking force to the outer brake pad 200 between the 6-1 th point P6a and the 6-2 th point P6b.

When the piston 61 applies a braking force to the inner brake pad 100 in the B direction, the caliper fingers 62 also apply a braking force to the outer brake pad 200 in the B direction with the reaction force to perform braking.

When the inner brake pad 100 is pressed toward the wheel rim 3, the first caliper arms 220a and 220b rotate clockwise in FIG. 6 , and the second caliper arms 230a and 230b rotate counterclockwise in FIG. 6 . While rotating, by pressing the inner brake pad 100 and the outer brake pad 200 toward the rim 3, respectively, a self-reinforcing effect of increasing the braking force is provided.

8 shows a self-reinforced brake caliper according to the present invention used in a fixed caliper type braking device.

The fixed caliper type braking device includes pistons 71 and 72 that apply a braking force to each of the inner brake pad 100 and the outer brake pad 200 . Since the fixed caliper type braking device is a well-known technology, detailed descriptions of other components that are not related to the present invention will be omitted.

The first caliper arm 320 includes a first end 321 rotatably connected to the caliper bracket 10 with respect to a first rotational shaft extending in the radial direction of the wheel, and a piston 71 to which a braking force is applied. and a second end 322 rotatably connected to the inner brake pad 100 at a seventh point P7 with respect to a second axis of rotation parallel to the first axis of rotation.

The piston 71 may be provided with a space 63 allowing the first caliper arm 320 to rotate at the seventh point P7 .

The second caliper arm 330 includes a first end 331 rotatably connected to the caliper bracket 10 with respect to a third rotational shaft extending in the radial direction of the wheel, and a piston 72 to which a braking force is applied. and a second end 332 rotatably connected to the outer brake pad 200 at an eighth point P8 with respect to a fourth axis of rotation parallel to the third axis of rotation.

The piston 72 may be provided with a space 64 allowing the second caliper arm 330 to rotate at the eighth point P8 .

When the pistons 71 and 72 apply braking force to the inner brake pad 100 and the outer brake pad 200 in the B direction, respectively, the inner brake pad 100 and the outer brake pad 200 are pressed toward the wheel rim 3 while perform braking. Then, the first caliper arm 320 rotates in the clockwise direction of FIG. 8 , and the second caliper arm 330 rotates in the counterclockwise direction of FIG. 8 , providing a self-reinforcing effect of increasing braking force.

A plurality of pistons 71 or 72 may be provided.

9 and 10, as a self-reinforced brake caliper according to the present invention used in a fixed caliper type braking device, two first caliper arms 320a and 320b and two second caliper arms 330a and 330b are provided. A provided embodiment is shown.

The first caliper arms 320a and 320b may be provided parallel to each other, and a first end (not shown) connected to the caliper bracket 10 rotatably about a first axis of rotation, respectively, and a point 7-1 It includes second ends 322a and 322b rotatably connected to the inner brake pad 100 at points P7a and 7-2 , P7b with respect to a second axis of rotation parallel to the first axis of rotation.

The second caliper arms 330a and 330b may be provided parallel to each other, and each of the first ends 331a and 331b connected to the caliper bracket 10 rotatably about the third rotation axis, and the 8-1th point and second ends 332a and 332b rotatably connected to the outer brake pad 200 with respect to a fourth rotational axis parallel to the third rotational axis at P8a and an 8-2th point P8b.

The piston 71 may be disposed to apply a braking force to the inner brake pad 100 between the 7-1 th point P7a and the 7-2 th point P7b.

The piston 72 may be disposed to apply a braking force to the outer brake pad 200 between the 8-1 th point P8a and the 8-2 th point P8b.

The piston 71 applies a braking force to the inner brake pad 100 in the B direction, and the piston 72 applies a braking force to the outer brake pad 200 in the B direction, so that braking is performed.

When the inner brake pad 100 is pressed toward the wheel rim 3, the first caliper arms 320a and 320b rotate in the clockwise direction in FIG. 9, and the second caliper arms 330a and 330b rotate in the counterclockwise direction in FIG. While rotating, by pressing the inner brake pad 100 and the outer brake pad 200 toward the wheel rim 3, respectively, the self-reinforcing effect of increasing the braking force is provided.

11 and 12, the self-reinforced brake caliper according to the present invention applied to a floating caliper type braking device, three first caliper arms 220a, 220b, 220c and three second caliper arms 230a, 230b , 230c) is shown in an embodiment.

The first caliper arms 220a, 220b, and 220c may be provided in parallel with each other, and each includes first ends 221a, 221b, and 221c connected to the caliper bracket 10 rotatably about the first rotation axis; Connect to the inner brake pad 100 at the 5-1 th point P5a, the 5-2 th point P5b, and the 5-3 th point P5c so as to be rotatable about a second rotation axis parallel to the first rotation axis, respectively and second ends 222a, 222b, 222c.

The second caliper arms 230a, 230b, and 230c may be provided in parallel to each other, and each includes first ends 231a, 231b, and 231c connected to the caliper bracket 10 rotatably about a third rotation axis; The outer brake pad 200 is rotatably connected to the outer brake pad 200 at the 6-1 th point P6a, the 6-2 th point P6b, and the 6-3 th point P6c so as to be rotatable about the fourth rotation axis parallel to the third rotation axis. and second ends 232a, 232b, 232c.

The piston 61 may be disposed to apply a braking force to the inner brake pad 100 between the 5-1 th point P5a and the 5-3 th point P5c, and the first caliper arm 220b is the fifth A space 63 that allows rotation at the -2 point P2b may be provided.

The caliper fingers 65 may be disposed to apply a braking force to the outer brake pad 200 between the 6-1 th point P6a and the 6-3 th point P6c, and the second caliper arm 230b A space 64 that allows rotation at the 6-2th point P6b may be provided.

When the piston 61 applies a braking force to the inner brake pad 100 in the B direction, the caliper fingers 65 also apply a braking force to the outer brake pad 200 in the B direction with the reaction force to perform braking.

When the inner brake pad 100 is pressed toward the wheel rim 3, the first caliper arms 220a, 220b, and 220c rotate clockwise in FIG. 11 , and the second caliper arms 230a, 230b and 230c in FIG. 11 While rotating counterclockwise, pressing the inner brake pad 100 and the outer brake pad 200 toward the rim 3, respectively, provides a self-reinforcing effect of increasing the braking force.

The self-reinforced brake caliper of the present invention according to the embodiment shown in FIGS. 13 and 14 is different from the self-reinforced brake caliper of the embodiment of FIGS. 11 and 12 in that two pistons 61a and 61b are provided. .

In this embodiment, the first piston 61a applies a braking force to the inner brake pad 100 between the 5-1 th point P5a and the 5-2 th point P5b, and the second piston 61b 11 and 12, except that the braking force is applied to the inner brake pad 100 between the 5-2 point P5b and the 5-3 point P5c. A description is omitted.

The self-reinforced brake caliper of the present invention according to the embodiment shown in FIGS. 15 and 16 is different from the embodiment shown in FIGS. 8 to 10 in that three first caliper arms and three second caliper arms are provided. There is a difference.

The first caliper arms 320a, 320b, and 320c may be provided parallel to each other, and each includes a first end (not shown) connected to the caliper bracket 10 rotatably about a first axis of rotation; Connect to the inner brake pad 100 at the 7-1 th point P7a, the 7-2 th point P7b, and the 7-3 th point P7c to be rotatable about a second rotation axis parallel to the first rotation axis, respectively and second ends 322a, 322b, 322c.

The second caliper arms 330a, 330b, and 330c may be provided in parallel to each other, and each includes first ends 331a, 331b, and 331c connected to the caliper bracket 10 rotatably about a third axis of rotation; At the 8-1 point (P8a), the 8-2 point (P8b), and the 8-3 point (P8c), the outer brake pad 200 is rotatably connected to the fourth rotation axis parallel to the third rotation axis and second ends 332a, 332b, 332c.

The piston 71 is provided between the 7-1 th point P7a and the 7-3 th point P7c, and the piston 72 is provided between the 8-1 th point P8a and the 8-3 th point P8c. is provided on

The piston 71 may be provided with a space 63 allowing the first caliper arm 320b to rotate at the 7-2 th point P7b, and the piston 72 may be provided with a second caliper arm 330b. A space 63 that enables rotation at the point 8-2 P8b may be provided.

The piston 71 applies a braking force to the inner brake pad 100 in the B direction, and the piston 72 applies a braking force to the outer brake pad 200 in the B direction, so that braking is performed.

When the inner brake pad 100 is pressed toward the wheel rim 3, the first caliper arms 320a, 320b, and 320c rotate clockwise in FIG. 15, and the second caliper arms 330a, 330b, 330c in FIG. While rotating counterclockwise, pressing the inner brake pad 100 and the outer brake pad 200 toward the wheel rim 3, respectively, provides a self-reinforcing effect of increasing the braking force.

Although only an embodiment in which the first caliper arm and the second caliper arm are each of three are described in the above embodiments and the accompanying drawings, the first caliper arm and the second caliper arm may be provided in more numbers. Also, the number of the first caliper arms may be different from the number of the second caliper arms. In addition, combinations of various numbers of inner and outer pistons not included in the above-described embodiments are possible. For each combination, the caliper housing may be mounted with a floating caliper or a fixed caliper.

In addition, the self-reinforced brake caliper according to the present invention can be used not only for the above-described exemplary type of braking device, but also for other types of known braking devices in which the driving force of the braking device is applied directly to the brake pad without passing through the caliper arm. should be understood

The present invention has been described above with reference to the accompanying drawings, but the scope of the present invention is determined by the following claims and should not be construed as being limited to the above-described embodiments and/or drawings. And it should be clearly understood that improvements, changes and modifications obvious to those skilled in the art of the invention described in the claims are also included in the scope of the present invention.

1: first rotating vertical arm 2: second rotating vertical arm
3: Wheel rim 10: Caliper bracket
20, 120, 220, 320: first caliper arm 30, 130, 230, 330: second caliper arm
52: sliding pin 60, 81, 82: caliper housing
61, 71, 72: piston 62, 65: caliper fingers
100: inner brake pad 110: inner friction material
200: outer brake pad 210: outer friction material

Claims (10)

A self-reinforced brake caliper used in a braking device comprising a first braking unit applying a braking force to an inner brake pad and a second braking unit applying a braking force to an outer brake pad, the self-reinforcing brake caliper comprising:
a caliper bracket fixed to the body of the braked device;
a first end rotatably connected to the caliper bracket with respect to a first axis of rotation extending in a radial direction of the wheel; and a second end rotatably connected to the inner brake pad at a first point about a second axis of rotation parallel to the first axis of rotation. a first caliper arm comprising two ends;
a first end rotatably connected to the caliper bracket with respect to a third axis of rotation extending in a radial direction of the wheel, and a third end rotatably connected to the outer brake pad at a second point about a fourth axis of rotation parallel to the third axis of rotation a second caliper arm comprising two ends;
Magnetic Reinforced Brake Caliper.
The method according to claim 1,
The first caliper arm is a separate component separate from the first brake,
the second caliper arm is a separate component separate from the second brake;
Magnetic Reinforced Brake Caliper.
The method according to claim 1,
At least one of the first caliper arm and the second caliper arm is connected to the caliper bracket by a return spring,
Magnetic Reinforced Brake Caliper.
4. The method according to any one of claims 1 to 3,
A plurality of caliper arms of at least one of the first caliper arm and the second caliper arm are provided,
Magnetic Reinforced Brake Caliper.
5. The method according to claim 4,
a plurality of first caliper arms or a plurality of second caliper arms are each provided in parallel;
Magnetic Reinforced Brake Caliper.
4. The method according to any one of claims 1 to 3,
at least a portion of the first caliper arm and the second caliper arm is disposed in a space provided in the caliper bracket;
Magnetic Reinforced Brake Caliper.
4. The method according to any one of claims 1 to 3,
The braking device includes a piston that applies a braking force to either one of the inner brake pad or the outer brake pad, and a caliper finger that slides in an inner and outer direction along a sliding pin according to the operation of the piston and applies a braking force to the other brake pad. It is a floating caliper type braking device that
the piston is provided with a space allowing rotation of the first caliper arm;
Magnetic Reinforced Brake Caliper.
4. The method according to any one of claims 1 to 3,
The braking device is a fixed caliper type braking device including a first piston applying a braking force to an inner brake pad and a second piston applying a braking force to an outer brake pad,
The first piston is provided with a space allowing rotation of the first caliper arm;
the second piston is provided with a space allowing rotation of the second caliper arm;
Self-reinforced brake calipers.
8. The method of claim 7,
A plurality of pistons are provided,
Magnetic Reinforced Brake Caliper.
9. The method of claim 8,
The first piston or the second piston is provided in plurality,
Magnetic Reinforced Brake Caliper.

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