CN1438432A

CN1438432A - Disc-type brake

Info

Publication number: CN1438432A
Application number: CN 03107558
Authority: CN
Inventors: 佐野隆; 南里圭介
Original assignee: TO KIKO CO Ltd
Current assignee: TO KIKO CO Ltd; Tokico Ltd
Priority date: 2002-02-15
Filing date: 2003-02-15
Publication date: 2003-08-27
Anticipated expiration: 2023-02-15
Also published as: CN1294367C; JP3911667B2; JP2003240028A

Abstract

To facilitate mounting of a disk brake to a car body side, having an independent brake pad corresponding to a plurality of pistons. Four pistons including pistons 11A and 11B are faced to a caliper body 3 of the disk brake 1, and four independent brake pads corresponding to respective pistons are disposed. Expanding tilting surfaces 34A and 34B are formed at the lower ends of torque receiving parts 20A and 20B disposed between the adjacent brake pads in a central part of the caliper body 3. In mounting the caliper body 3 to the car body side, the outer peripheral edge of a disk rotor 2 is guided along the expanding tilting surfaces 34A and 34B of the torque receiving parts 20A and 20B and is smoothly inserted into a disk pass part 10 between the faced torque receiving parts 20A and 20B and brake pads, so that the mounting of the caliper body 3 to the car body is facilitated.

Description

Disc-brake

Technical field

The present invention relates to disc-brake as the braking device use of vehicles such as automobile.

Background technique

In general, the braking plate that is provided with in both sides of the piston of the disc-brake that uses as the braking device of vehicles such as automobile by oil hydraulic cylinder dish type rotating component that clamping and wheel are together rotated pushes to the dish type rotating component and produces braking force.

About this disc-brake, what we knew has for example at the real clamp fixed disc-brake of being put down in writing in the flat 3-46026 communique of opening, wherein, dispose two pistons respectively in the dish type rotating component both sides of brake caliper and corresponding to the independent brake sheet of each piston, and be provided with the torque of bearing retarding torque of supporting these braking plates respectively and bear portion.

Summary of the invention

But, in the disc-brake that described communique is put down in writing, because the torque that is provided with between dish type rotating component one side braking plate adjacent to each other is born portion's clamping dish type rotating component and is arranged on both sides, therefore when brake caliper is installed to car body, must bears in these torques and insert the dish type rotating component between the portion.So, must be in the position of finding brake caliper accurately so that portion and braking plate are born in these torques can not produce with the dish type rotating component and be installed in car body when interfering, thereby cause installation procedure loaded down with trivial details.

The objective of the invention is to overcome the above problems, and a kind of disc-brake that can easily brake caliper be installed on the vehicle body is provided.

In order to solve described problem, first aspect present invention provides a kind of disc-brake, at least one side at the dish type rotating component is provided with a plurality of pistons, is provided with a plurality of independently braking plates corresponding to these pistons, and has the torque of supporting described a plurality of braking plates respectively and bear portion.And bear the end that the described dish type rotating component central side of portion is born in the torque that is clipped in described a plurality of braking plates position in the portion in described torque, form plane of inclination to the central side expansion of described dish type rotating component.

By above structure, when being installed to car body, the outer periphery portion of dish type rotating component can be directed and insert the torque of both sides and bear between portion and the braking plate along the plane of inclination that portion is born in torque.

The disc-brake of second aspect present invention, be on the basis of the structure of first aspect present invention, the end of the described dish type rotating component central side of described plane of inclination is positioned at end by the described dish type rotating component central side of described braking plate to described dish type rotating component central side.

By because above structure, when being installed to car body, can guarantee to bear between portion and the braking plate along the torque that torque is born the plane of inclination guiding dish type rotating component of portion and inserted it into both sides.

The disc-brake of third aspect present invention is on the basis of the structure of second aspect present invention, described plane of inclination is become when described braking plate is in going-back position, be in the described torque of central side of the described dish type rotating component of this braking plate and bear the shape that the part of portion's side can not stretched out from this plane of inclination.

By above structure, the torque that can successfully guide the dish type rotating component along the plane of inclination that portion is born in torque and insert it into both sides is born between portion and the braking plate.

In addition, the disc-brake of fourth aspect present invention, be in first aspect present invention to the basis of each structure of the third aspect, near described plane of inclination, the integrally formed assembly department of installing toward car body

By this structure, plane of inclination and assembly department that the heat of braking plate can be easily bears portion by torque discharge to vehicle body.

Description of drawings

Fig. 1 relates to the disc-brake of one embodiment of the invention along the longitudinal sectional drawing shown in the A-A line in Fig. 2;

Fig. 2 is the front elevation of disc-brake shown in Fig. 1;

Fig. 3 is the planimetric map of disc-brake shown in Fig. 1;

Fig. 4 is the profile of disc-brake shown in Fig. 1;

Fig. 5 is illustrated in the worm's eye view that is folded down the braking plate state in the disc-brake of Fig. 1;

Fig. 6 is illustrated in the front elevation of splitting body that the braking plate state is installed in the disc-brake of Fig. 1;

Fig. 7 be disc-brake shown in Figure 1 along longitudinal sectional drawing shown in the B-B line among Fig. 2, be the figure that is folded down piston.

Embodiment

Below, with reference to the accompanying drawings one embodiment of the invention are elaborated.

To shown in Figure 7, the disc-brake 1 of present embodiment is the disc-brake of clamp fixed as Fig. 1, and caliper body 3 is to split body 3A and clamp are split two element type structures that body 3B interosculates and constitutes by the clamp that are separately positioned on dish type rotating component 2 both sides.

Clamp are split body 3A and clamp, and to split body 3B be 6A of cross-over connection portion and the 6B of cross-over connection portion butt joint by making the 4A of cross-over connection portion from two ends to dish type rotating component 2, the 5A that circumferentially stretch out at and the 4B of cross-over connection portion, 5B and stretching out in center upper portion, and interosculate and form by interting clamping bolt 7,8,9 in the 4A of these cross-over connection portions, 5A, 4B, 5B, 6A, 6B.Caliper body 3 has formed disk path 10 across dish type rotating component 2 by the 4A of cross-over connection portion, 4B, 5A, 5B, 6A, 6B.

Split among body 3A and the 3B at clamp, two oil cylinder 11A, the 12A and 11B, the 12B that are provided with respectively along dish type rotating component 2 peripheral directions are formed at opposed facing position, in these

oil cylinders

11A, 12A, 11B, 12B, be embedded with piston 13A cylindraceous, 14A and 13B, the 14B of band bottom respectively slidably.Split among body 3A and the 3B at clamp, formed the oil circuit 15 (part only is shown among the figure) that is communicated with

oil cylinder

11A, 12A and

oil cylinder

11B, 12B, can from be arranged on clamp split oil supply port 16 the body 3A by oil circuit 15 to

oil cylinder

11A, 12A and 11B, 12B supply system hydrodynamic.In addition, split among the body 3A, the plug 17 of releasing that is used for exhaust is installed at clamp.

Split among body 3A, the 3B at clamp, torque is born the 18A of portion, 19A, 20A and torque and is born the 18B of portion, 19B, 20B respectively to the peripheral direction of dish type rotating component 2 relative stretching out between two outsides of

oil cylinder

11A, 12A and 11B, 12B,

oil cylinder

11A, 12A and between oil cylinder 11B, the 12B.Bear between the 18A of portion, the 20A and torque is born between the 19A of portion, the 20A in torque, bear between the 18B of portion, the 20B and torque is born between the 19B of portion, the 20B in torque equally, form respectively along the dish type rotating component axially and along sheet guide slot 23A, the 24A and 23B, the 24B that roughly radially guide essentially

rectangular braking plate

21A, 22A and 21B, 22B slidably, make

oil cylinder

11A, 12A and 11B, 12B at

sheet guide slot

23A, 24A and 23B, 24B opening respectively.

Make

sheet guide slot

23A, 24A and 23B, 24B centroclinal to dish type rotating component 2 slightly, the torque between them is born the 20A of portion, 20B and is general triangular.The 20A of portion, 20B are born in the torque that clamp are split

body

3A, 3B central part and the 6A of cross-over connection portion, 6B are connected as a single entity.In addition, the torque of both end sides is born the 18A of portion, 18B and 19A, 19B and is provided with the strengthening rib 40A, the 40B that link to each other with the 4A of cross-over connection portion, 4B and 5A, the 5B at two ends and 41A, 41B to improve rigidity.In addition, bear among the 18A of portion, 18B, 19A, 19B, 20A, the 20B, respectively

otch

25A, 25B, 26A, 26B, 27A, the 27B that is provided for ventilating along the peripheral direction of dish type rotating component 2 in torque.

On the top (outer circumferential side of dish type rotating component 2) that clamp are split

body

3A, 3B, forming pin hub 28A, 28B between the 4A of cross-over connection portion, the 6A and between the 4B of cross-over connection portion, the 6B respectively, forming pin hub 29A, 29B between the 5A of cross-over connection portion, the 6A and between the 5B of cross-over connection portion, the 6B.Inserted respectively and passed in the inner liner metal of

braking plate

21A, 21B and 22A, 22B at the sheet pin between

pin hub

28A, 28B and 29A, the

29B

30,31,

braking plate

21A, 21B and 22A, 22B were fixed in the caliper body 3 with screw fit.In addition, in

sheet pin

30,31,

leaf spring cover

32,33 is installed, these leaf spring covers are with

braking plate

21A, 21B and 22A, 22B are fastening combines, and make the position stability of

braking plate

21A, 21B and 22A, 22B, can prevent that foreign matter from invading the slide part of

braking plate

21A, 21B and 22A, 22B simultaneously.

The lower end (end of accepting side of dish type rotating component 2) that the 20A of portion, 20B are born in the torque of splitting

body

3A, 3B central authorities at clamp is formed with plane of inclination 34A, the 34B to the lower end side expansion.(only show clamp on one side and split body 3A) as shown in Figure 6, the central side end C of the described dish type rotating component 2 of described plane of

inclination

34A, 34B should constitute the inboard (in other words, being positioned at from the described dish type rotating component central side end of

braking plate

21A, 21B and 22A, 22B the extremely central side of described dish type rotating component) of the curved portion 2A that connects with the dish type rotating component radially inner side end of

braking plate

21A, 21B and 22A, 22B, radius R 1 is identical with dish type rotating component 2 radiuses.In addition, plane of

inclination

34A, 34B should be with at

braking plate

21A, 21B and 22A, when 22B is in going-back position, and the end portion that the 20A of portion, 20B side are born in the torque of

braking plate

21A, 21B and 22A, 22B can not stretch out from plane of inclination 34A, 34B.In addition, the profile of plane of

inclination

34A, 34B also can be curve shapes such as circular arc except being the straight line shown in the figure.

Split the underpart of body 3A at clamp, bear near the plane of inclination 34A of the 20A of portion in torque and between oil cylinder 11A and the 4A of cross-over connection portion, be formed with respectively

hub

35,36 is installed, caliper body 3 can be by inserting the bolt (not shown) that these

install hubs

35,36, is installed to the non-rotating position of the body side such as knuckle of the front fork of two-wheeled motor vehicle or four wheeler.

Effect to the present embodiment that constitutes as mentioned above describes below.

By the brake fluid of master cylinder (not shown) pressurization when oil supply port 16 supplies to each

oil cylinder

11A, 11B, 12A, 12B, piston 13A, 13B, 14A, 14B advance, and

braking plate

21A, 21B, 22A, 22B are pressed against dish type rotating component 2 to produce braking force.At this moment,

braking plate

21A, 21B, 22A, 22B are dragged by dish type rotating component 2 and draw, and compress torque according to its sense of rotation and bear the 20A of portion, 20B and 18A, 18B or 19A, 19B.

In the time of on the positions such as front fork that caliper body 3 are installed to two-wheeled motor vehicle, because when in the disk path 10 that makes dish type rotating component 2 insertion caliper body 3, the outer periphery portion of dish type rotating component 2 can along torque bear the 20A of portion, 20B the expansion plane of

inclination

34A, 34B be imported in the disk path 10, therefore can not interfere with the underpart of

braking plate

21A, 21B, 22A, 22B, thereby can successfully insert in the disk path 10, the installation of caliper body 3 is carried out easily.As described in present embodiment, only bear the 20A of portion, 20B and form under the situation of plane of

inclination

34A, 34B in the torque of central authorities, can make the weight minimum that is added to caliper body 3, thereby can easily install.

In addition, in Fig. 7,

braking plate

22A, 22B are more side-prominent to the dish type rotating component of disk path 10 than

rake

34A, 34B, this is because what describe among the figure is to bear the 20A of portion, 20B and piston 13A, 13B are taken off for the torque that can see central authorities, and can show the state that braking

plate

22A, 22B advance.When being assembled into caliper body 3 on the vehicle body,

braking plate

22A, 22B are in the state that retreats, and under this fallback state, rake 34A, 34B are more outstanding to the disk path 10 than the dish type rotating component side lower end of

braking plate

22A, 22B.

In addition, owing to install near hub 35 bears the 20A of portion in torque the plane of inclination 34A integrally formed, the heat that produces by the mutual friction between dish type rotating component 2 and

braking plate

21A, 21B, 22A, the 22B during braking passes to torque from

braking plate

21A, 22A and bears the 20A of portion, and by near the 34A of plane of inclination integrally formed installation hub 35 discharge to car body, therefore, make heat can easily be discharged into car body, thereby improved radiating efficiency.

In addition, in described embodiment, though when being installed to caliper body 3 on the vehicle body, only the torque that produces the central part of interference problems at meeting and dish type rotating component 2 is born the 20A of portion, 20B and is formed with plane of

inclination

34A, 34B, but in addition, bear under the situation that produces interference problem between the 18A of portion, 18B and 19A, 19B and the dish type rotating component 2 in the torque at two end part, also can bear the 18A of portion, 18B and 19A, 19B formation plane of inclination in these torques.Generally speaking, the plane of inclination can suitably be formed on all torques and bear the torque at portion, two ends and bear the torque of arbitrary end in portion or the two ends and bear positions such as portion, promptly when clamp are installed, can bear portion, on braking plate, also can be provided for guiding the plane of inclination of dish type rotating component 2 equally with the torque that dish type rotating component 2 produces interference problem.

In described embodiment, the example that the both sides at dish type rotating component 2 is respectively equipped with two pistons is illustrated.In addition, the torque portion of bearing that the present invention bears portion or end by the torque between these pistons forms the plane of inclination, is suitable for too for being provided with three examples with upper piston.

In addition, in described embodiment, clamp fixed and two clamp are split so-called two element type example of structure that

body

3A, 3B interosculate to one be illustrated, in addition, the present invention is equally applicable to an element type example of structure making caliper body integrally formed.And, for the example of clamp float type, be suitable for too by the plane of inclination being set in the torque portion of bearing that is arranged at bearing etc.

In addition, in described embodiment, illustrated when being installed to caliper body 3 on the car body, under its fallback state,

rake

34A, 34B is from braking plate 22A, the dish type rotating component side lower end of 22B is to the outstanding example of disk path 10, but be not limited to this, also can adopt and make braking plate 22A, the dish type rotating component side lower end of 22B is a little than rake 34A, the structure that 34B stretches out, like this when assembling, the braking rotating component from the disk path 10 under the situation of the bigger skew of axial generation of rotating component, because rake 34A is arranged, the guiding of 34B, therefore, though

braking plate

22A, 22B contacts with the dish type rotating component, but with do not have rake 34A, compare during 34B, property easy to assembly is much higher.

The invention effect

As above described in detail, adopt the disc-brake of first aspect present invention, by forming the plane of inclination in the torque portion of bearing that is clipped in a plurality of braking plates position, therefore in the time of on being installed to vehicle body, the outer periphery portion of dish type rotating component can be guided and insert the torque of both sides along the plane of inclination that portion is born in torque and bear between portion and the braking plate, thereby can easily carry out the installation to car body.

Employing relates to the disc-brake of second aspect present invention, be positioned at from the described dish type rotating component central side end of described braking plate to the central side of described dish type rotating component by the described dish type rotating component central side end that makes described plane of inclination, therefore in the time of on being installed to car body, can guarantee to bear between portion and the braking plate, thereby can easily carry out installation to car body along the torque that torque is born the plane of inclination guiding dish type rotating component of portion and inserted it into both sides.

Adopt the disc-brake of third aspect present invention, by the plane of inclination being designed to when described braking plate is in going-back position, bear the shape that the part of portion can not stretched out from this plane of inclination in the described torque of central side of the described dish type rotating component of this braking plate.Therefore, the torque that can successfully guide the dish type rotating component along the plane of inclination that portion is born in torque and insert it into both sides is born between portion and the braking plate and the end that can not be braked sheet tangles, thereby can be easily mounted on the car body.

In addition, adopt the disc-brake of fourth aspect present invention, by near the integrally formed assembly department of installing to the vehicle body plane of inclination, therefore, plane of inclination and assembly department that the heat of braking plate can be easily bears portion by torque discharge to vehicle body, thereby can improve heat dispersion.

Claims

1. disc-brake, at least one side at the dish type rotating component is provided with a plurality of pistons, be provided with a plurality of independently braking plates corresponding to these pistons, and have the torque of supporting described a plurality of braking plates respectively and bear portion, it is characterized in that: bear the end that the described dish type rotating component central side of portion is born in the torque that is clipped in described a plurality of braking plates position in the portion in described torque, form plane of inclination to the central side expansion of described dish type rotating component.

2. according to the described disc-brake of claim 1, it is characterized in that: the end of the described dish type rotating component central side of described plane of inclination is positioned at by the end of the described dish type rotating component central side of described braking plate to described dish type rotating component central side.

3. disc-brake according to claim 2, it is characterized in that, described plane of inclination is become when described braking plate is in going-back position, be in the described torque of central side of the described dish type rotating component of this braking plate and bear the shape that the part of portion's side can not stretched out from this plane of inclination.

4. according to each described disc-brake in the claim 1～3, it is characterized in that: near described plane of inclination, the integrally formed assembly department of installing toward car body.