KR20090068862A - Opposed type caliper body of disk brake for vehicle - Google Patents

Opposed type caliper body of disk brake for vehicle Download PDF

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Publication number
KR20090068862A
KR20090068862A KR1020070136651A KR20070136651A KR20090068862A KR 20090068862 A KR20090068862 A KR 20090068862A KR 1020070136651 A KR1020070136651 A KR 1020070136651A KR 20070136651 A KR20070136651 A KR 20070136651A KR 20090068862 A KR20090068862 A KR 20090068862A
Authority
KR
South Korea
Prior art keywords
caliper body
cylinder
vehicle
caliper
brake
Prior art date
Application number
KR1020070136651A
Other languages
Korean (ko)
Inventor
고길주
Original Assignee
한국타이어 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국타이어 주식회사 filed Critical 한국타이어 주식회사
Priority to KR1020070136651A priority Critical patent/KR20090068862A/en
Publication of KR20090068862A publication Critical patent/KR20090068862A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/228—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/005—Components of axially engaging brakes not otherwise provided for
    • F16D65/0068—Brake calipers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0016—Brake calipers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0066—Brakes having more than one actuator on the same side of the disc

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

An opposed type caliper body of a vehicle disc brake is provided to relief the concentration of stress and the distortion deformation of the caliper body due to a braking torque generated in a bolt coupling hole, thereby improving the durability of the caliper body. An opposed type caliper body of a vehicle disc brake includes right and left cylinder outer parts surrounding right and left cylinders(1,3) and formed in curved convex shape. The outer parts have bolt holes(5) formed with reinforcement indent parts(8) at upper parts in the direction of the inner left cylinder so as to decrease the concentration of stress with respect to the cylinder direction.

Description

Discrete caliper body of disk brake for vehicle

The present invention relates to an opposing caliper body of a disc brake which is a vehicle braking device. In particular, the body shape of the caliper is improved to reduce the stress concentration due to high hydraulic pressure and braking torque during brake operation. An opposing caliper body for a disc brake for a vehicle.

As is well known, a brake device, which is a vehicle braking device, is an important device for a vehicle used to decelerate or stop a running vehicle. Disc brakes and drum brakes, which are hydraulic brakes, are widely used.

Recently, disc brakes are used more than drum brakes to improve the performance of a vehicle. This disc brake is a device that holds a brake of a wheel by closely attaching a brake pad to a disc (brake). And a brake pad in close contact with the disk to generate a friction force, a cylinder in which hydraulic pressure acts, a piston reciprocating in the cylinder to push the brake pad, and a caliper having the piston and the cylinder.

Wherein the caliper is a hydraulic cylinder and the piston is located on both sides of the disk and a fully fixed caliper is delivered to the hydraulic pressure from the cylinder, the pistons on both sides press the brake pads on both sides of the disk, and the caliper in a floating state It is divided into a floating type caliper, which slides itself and has a piston and a cylinder on one side of the caliper, and a brake pad on the other side, thereby compressing the disk.

Among these calipers, the opposite caliper of the related art has a caliper body 100 which mainly covers a part of the disk 109 as shown in FIG. 5 and is mainly made of an aluminum alloy material and has left and right cylinder outer portions 106 and 107. 4) has a flat structure, so crack cracks occur at the left and right cylinder outer portions 106 and 107 of the caliper body 100 in the internal oral cavity test by the brake oil hydraulic pressure, which is a very high brake hydraulic pressure. This is because the caliper body expands outside the cylinder so that cracks due to tensile stress are generated outside the caliper body and transferred to the inside of the cylinder.

In addition, since the conventional caliper made of aluminum is weaker than the steel caliper made of steel, the caliper is made of aluminum because it is deformed by braking torque and brake pressure is applied to the bolt hole that tightens the bolt to the brake assembly. The stress was higher than the yield strength of the alloy was concentrated to show the weakness of durability.

Accordingly, the present invention has been invented to solve the conventional problems as described above, while alleviating the phenomenon that the tensile stress due to high hydraulic pressure concentrated on the caliper body during the disc braking action, also reduces the distortion distortion by the braking torque at the bolting hole It is an object of the present invention to provide an opposing caliper body of a disc brake for a vehicle in which the durability of the caliper body is improved.

The present invention for achieving the above object is to the left side caliper body having a left cylinder and the right caliper body having a right cylinder is integrally connected to the opposite caliper body of the vehicle disc brake formed with bolt holes while surrounding the left and right cylinders The left and right cylinder outer parts formed by enclosing the left and right cylinders are formed in a convex curved shape, and the upper portion of the bolt hole of the left cylinder outer part has a structure in which reinforcing recesses are formed in the inner left cylinder direction, respectively.

The opposing caliper body of the disc brake for a vehicle according to the present invention as described above has a durability due to the stress concentration caused by the high hydraulic pressure generated inside the cylinder during disc braking and the distortion of deformation caused by the braking torque generated in the bolt fastening hole. It will have an improved effect.

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

1 is a perspective view of an opposing caliper body of a disc brake for a vehicle according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a cross-sectional view taken along lines II-II and III-III of FIG. 1.

As shown in the drawing, the left caliper body 2 having the left cylinder 1 and the right caliper body 4 having the right cylinder 3 are integrally connected, and the left and right cylinders 1 and 3 are connected. In an opposing caliper body of a vehicular disk brake with bolt holes 5 formed therein, the left and right cylinder outer parts 6 and 7 formed by enclosing the left and right cylinders 1 and 3 are formed in a convex curved shape. The upper portion of the bolt hole 5 of the left cylinder outer portion 6 has a structure in which reinforcing recesses 8 are formed in the inner left cylinder 1 direction, respectively.

That is, in the conventional opposing aluminum caliper as described above, since the caliper body of the left and right cylinder outer portions 106 and 107 surrounding the left and right cylinders 101 and 103 has a flat structure (see FIG. 4), very high brake oil when braking the disc brake Although the left and right cylinder outer parts 106 and 107 of the caliper body are expanded by the hydraulic pressure, cracking is started due to tensile stress at the left and right cylinder outer parts 106 and 107. However, in the present invention, stress is concentrated on the left and right cylinder outer parts of the flat caliper body. The shape of the left and right cylinder outer parts 6 and 7 is formed to have a convex curved shape in order to improve the pressure, thereby reducing the concentration of tensile stress due to high hydraulic pressure.

In addition, the present invention in order to mitigate stress concentration due to twisting deformation caused by braking torque and high hydraulic pressure at the portion of the bolt hole 5 of the left cylinder outer portion 6 which is fastened to the brake assembly (not shown in the figure) via a bolt Using the same aluminum alloy, each of the upper portions of the bolt holes 5 has a structure in which reinforcing grooves 8 are respectively formed toward the inner left cylinder 1 to mitigate stress concentration acting in the cylinder direction.

1 is a perspective view of an opposing caliper body of a disc brake for a vehicle according to the present invention;

2 is a side view of FIG. 1;

3 is a cross-sectional view taken along line II-II and III-III of FIG. 1;

4 is a cross-sectional view corresponding to FIG. 3 as cross-sectional views of a conventional opposing caliper body;

5 is a perspective view of a conventional opposing caliper.

Explanation of symbols on the main parts of the drawing

1: left cylinder, 2: left caliper body,

3: right cylinder, 4: right caliper body,

5: bolt hole, 6: left cylinder outer side,

7: Right cylinder outer part, 8: Reinforcing groove part.

Claims (1)

The left caliper body 2 with the left cylinder 1 and the right caliper body 4 with the right cylinder 3 are integrally connected, and the bolt holes 5 are formed while enclosing the left and right cylinders 1, 3. In the opposed caliper body of the formed vehicle disc brake, The left and right cylinder outer parts 6 and 7 formed by enclosing the left and right cylinders 1 and 3 are formed in a convex curved shape, and each upper part of the bolt hole 5 of the left cylinder outer part 6 is an inner left cylinder 1. Opposing caliper structure of a disc brake for a vehicle, characterized in that the reinforcing grooves (8) are formed in each of the () direction.
KR1020070136651A 2007-12-24 2007-12-24 Opposed type caliper body of disk brake for vehicle KR20090068862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070136651A KR20090068862A (en) 2007-12-24 2007-12-24 Opposed type caliper body of disk brake for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070136651A KR20090068862A (en) 2007-12-24 2007-12-24 Opposed type caliper body of disk brake for vehicle

Publications (1)

Publication Number Publication Date
KR20090068862A true KR20090068862A (en) 2009-06-29

Family

ID=40996191

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070136651A KR20090068862A (en) 2007-12-24 2007-12-24 Opposed type caliper body of disk brake for vehicle

Country Status (1)

Country Link
KR (1) KR20090068862A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112135985A (en) * 2018-06-20 2020-12-25 威伯科欧洲有限责任公司 Pad carrier for a disc brake

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112135985A (en) * 2018-06-20 2020-12-25 威伯科欧洲有限责任公司 Pad carrier for a disc brake
CN112135985B (en) * 2018-06-20 2022-04-26 威伯科欧洲有限责任公司 Pad carrier for a disc brake

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E902 Notification of reason for refusal
E601 Decision to refuse application