CN110121608A - Disk brake - Google Patents
Disk brake Download PDFInfo
- Publication number
- CN110121608A CN110121608A CN201880005276.5A CN201880005276A CN110121608A CN 110121608 A CN110121608 A CN 110121608A CN 201880005276 A CN201880005276 A CN 201880005276A CN 110121608 A CN110121608 A CN 110121608A
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- CN
- China
- Prior art keywords
- brake disc
- extension
- brake
- clamp body
- cylinder
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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- 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
- F16D55/224—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 common actuating member for the braking members
- F16D55/225—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 common actuating member for the braking members the braking members being brake pads
- F16D55/226—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 common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
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- 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
- F16D65/02—Braking members; Mounting thereof
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- 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
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention provides a kind of disk brake.Braking clamp body is integrally formed with: cylinder portion, is configured in the axial side of brake disc, is formed with the cylinder bore for storing piston；Extension, one end side and the cylinder bore bottom in cylinder portion are continuous, upwardly extend in the side separated with brake disc and are equipped with rod unit；Mounting portion is guided, cable guide member is fixed with.It guides mounting portion in the another side with brake disc detaching direction of extension, protrudes and formed on the direction of rotation of brake disc from extension.The another side of extension is being shaped generally as oblong-shaped with being pressed on the parallel section in face for brake disc together with guidance mounting portion.
Description
Technical field
The present invention relates to vehicle braking disk brakes.
No. 2017-011978 application CLAIM OF PRIORITY that the application is submitted based on January 26th, 2017 in Japan, herein
Quote its content.
Background technique
In disk brake, in cast caliper body, at the position of the formation parking brake mechanism mounting portion of mold
Equipped with cast gate.
Existing technical literature
Patent document
Patent document 1:(Japan) No. 4262416 bulletin of patent
Summary of the invention
The technical problems to be solved by the invention
In cast caliper body, preferably inhibition shrink mark the defects of influence.
The purpose of the present invention is to provide a kind of disk brake, the influence for the defects of being able to suppress shrink mark.
For solving the technical solution of technical problem
One embodiment of the present invention is a kind of disk brake, comprising: braking clamp body, being equipped with will at least a pair of of friction pad
The piston pressed to brake disc；Parking brake mechanism is arranged in the braking clamp body to promote the piston；Bar portion
Part transmits the power from lead to the parking brake mechanism；Cable guide member is mounted on the outer of the braking clamp body
Side, the cable for internally wrapping the lead are engaged.The braking clamp body is integrally formed with: cylinder portion, is configured in the system
The axial side of Moving plate, is formed with the cylinder bore for storing the piston；Extension, the cylinder bore of the first end side and the cylinder portion
Bottom is continuous, upwardly extends in the side separated with the brake disc and is equipped with the rod unit；Mounting portion is guided, is fixed with described
Cable guide member.Second end side in the direction that with the brake disc separates of the guidance mounting portion in the extension, from
The extension is prominent on the direction of rotation of the brake disc and is formed.Draw with described second end side of the extension
It leads mounting portion together, is being shaped generally as rectangular shape with being pressed on the parallel section in face for the brake disc.
Other way of the invention is a kind of disk brake, comprising: braking clamp body, being equipped with will at least a pair of of friction pad
The piston pressed to brake disc；Parking brake mechanism is arranged in the braking clamp body to promote the piston；Bar portion
Part transmits the power from lead to the parking brake mechanism；Cable guide member is mounted on the outer of the braking clamp body
Side engages the cable of the interior packet lead.The braking clamp body includes cylinder portion, configures the axis in the brake disc
To side, it is formed with the cylinder bore for storing the piston；Bridge part is upwardly extended from the cylinder portion in brake disc axis, across
More the peripheral side of brake disc and formed；Claw, it is radially extending in brake disc from the bridge part, it is formed with and the braking
Disk is pressed the opposed opposed faces in face；Extension, one end side and the cylinder bore bottom in the cylinder portion are continuous, and with the braking
The side of disk separation upwardly extends, and has the hole portion equipped with the parking brake mechanism.It is put down in the face that is pressed with the brake disc
On capable section, the sectional area including the sectional area of the hole portion among the cylinder portion to the extension is the smallest
Sectional area is equal to or more than the smallest sectional area of the bridge part.
The effect of invention
According to above-mentioned disk brake, the influence for the defects of being able to suppress shrink mark.
Detailed description of the invention
Fig. 1 is the top view for indicating the disk brake of first embodiment.
Fig. 2 is the side view for indicating the disk brake of first embodiment.
Fig. 3 is the side view for indicating the disk brake of first embodiment.
Fig. 4 is the main view for indicating the disk brake of first embodiment.
Fig. 5 is the rearview for indicating the disk brake of first embodiment.
Fig. 6 is the cross-sectional view for indicating the disk brake of first embodiment.
Fig. 7 is the top view for indicating the braking clamp body of disk brake of first embodiment.
Fig. 8 is the side view for indicating the braking clamp body of disk brake of first embodiment.
Fig. 9 is the side view for indicating the braking clamp body of disk brake of first embodiment.
Figure 10 is the main view for indicating the braking clamp body of disk brake of first embodiment.
Figure 11 is the rearview for indicating the braking clamp body of disk brake of first embodiment.
Figure 12 is the top view for indicating the raw material state of the braking clamp body of disk brake of first embodiment.
Figure 13 is the side view for indicating the raw material state of the braking clamp body of disk brake of first embodiment.
Figure 14 is the side view for indicating the raw material state of the braking clamp body of disk brake of first embodiment.
Figure 15 is the main view for indicating the raw material state of the braking clamp body of disk brake of first embodiment.
Figure 16 is the rearview for indicating the raw material state of the braking clamp body of disk brake of first embodiment.
Figure 17 is the top view for indicating the disk brake of second embodiment.
Figure 18 is the side view for indicating the disk brake of second embodiment.
Figure 19 is the side view for indicating the disk brake of second embodiment.
Figure 20 is the main view for indicating the disk brake of second embodiment.
Figure 21 is the rearview for indicating the disk brake of second embodiment.
Figure 22 is the bottom view for indicating the disk brake of second embodiment.
Figure 23 is the cross-sectional view for indicating the disk brake of second embodiment.
Figure 24 is the top view for indicating the braking clamp body of disk brake of second embodiment.
Figure 25 is the side view for indicating the braking clamp body of disk brake of second embodiment.
Figure 26 is the side view for indicating the braking clamp body of disk brake of second embodiment.
Figure 27 is the main view for indicating the braking clamp body of disk brake of second embodiment.
Figure 28 is the rearview for indicating the braking clamp body of disk brake of second embodiment.
Figure 29 is the bottom view for indicating the braking clamp body of disk brake of second embodiment.
Figure 30 is the top view for indicating the raw material state of the braking clamp body of disk brake of second embodiment.
Figure 31 is the side view for indicating the raw material state of the braking clamp body of disk brake of second embodiment.
Figure 32 is the side view for indicating the raw material state of the braking clamp body of disk brake of second embodiment.
Figure 33 is the main view for indicating the raw material state of the braking clamp body of disk brake of second embodiment.
Figure 34 is the rearview for indicating the raw material state of the braking clamp body of disk brake of second embodiment.
Figure 35 is the bottom view for indicating the raw material state of the braking clamp body of disk brake of second embodiment.
Specific embodiment
[first embodiment]
Referring to Fig.1~Figure 16, first embodiment of the invention as described below.
The disk brake 10 of first embodiment shown in FIG. 1 to FIG. 6 applies brake force to vehicle.As shown in Figure 1, disk
Formula brake 10 includes bracket 11, a pair of of friction pad 12, caliper 13, stopping brake lead 15 and stopping brake line
Cable 16.In the first embodiment, although being equipped with a pair of of friction pad 12, two pairs or more can also be equipped with.
Bracket 11 is crossed over the outside diameter of disk-shaped brake disc 20 and is configured, and the non-rotating of vehicle (not shown) is fixed on
Portion.Brake disc 20 rotates together with the wheel (not shown) for becoming braking object.Two of a pair of of friction pad 12 and brake disc 20
Face is arranged opposite.In the state of being configured so that, a pair of of friction pad 12 can slide twelve Earthly Branches on the axis direction of brake disc 20
It holds in bracket 11.Caliper 13 is the state across the outside diameter of brake disc 20.In this state, caliper 13 is in brake disc 20
Axis direction on be slidably supported at bracket 11.Caliper 13 makes a pair of of friction pad 12 and the axial sides of brake disc 20
The face 20a of being pressed is contacted and pressed.Caliper 13 applies frictional resistance to brake disc 20 as a result,.It should be noted that under
The radial direction of brake disc 20 is known as brake disc radial direction by face.In addition, below, the axial direction of brake disc 20 is known as brake disc axial direction.
In addition, below, the direction of rotation of brake disc 20 is known as brake disc direction of rotation.Brake disc direction of rotation is brake disc 20
It is circumferential.
Bracket 11 include shown in FIG. 1 to FIG. 5 outside advance expenditure bearing portion 25 shown in inside advance expenditure bearing portion 24, FIG. 1 to FIG. 4,
And a pair of linking part 26 shown in FIG. 1 to FIG. 3.Inside indicates on the inside of vehicle width direction that outside indicates on the outside of vehicle width direction.Inside
Advance expenditure bearing portion 24 slideably supports the braking disc spins side of the friction pad 12 of inside via a pair of of pad guide rail 23 shown in FIG. 1
To two sides.As shown in figure 4, outside advance expenditure bearing portion 25 pads guide rail 23 via a pair, the friction pad 12 in outside is slideably supported.Such as
Shown in Fig. 1, a pair of of linking part 26 is separated with brake disc direction of rotation, is upwardly extended in brake disc axis.A pair of of linking part 26 will be interior
Side advance expenditure bearing portion 24 is linked with outside advance expenditure bearing portion 25.A pair of of linking part 26 is crossed over the outside diameter of brake disc 20 and is configured.
A pair of of linking part 26 is located at the brake disc radial outside at the brake disc direction of rotation both ends of bracket 11.In bracket 11,
A pair of of guide hole 29 is disposed through a pair of of linking part 26 from inside along brake disc axial direction.In a pair of of guide hole 29, from inside
Slideably insert the pair of sliding pin 30 embedded with caliper 13.It can made in the embedding pair of sliding pin 30 of a pair of of 29 interpolation of guide hole
Moving plate axis upward sliding.In this way, pair of sliding pin 30 is inserted embedded in a pair of of guide hole 29.As a result, with the system of pair of sliding pin 30
Dynamic pincers 13 are slidably supported at the bracket 11 with a pair of of guide hole 29.The caliper 13 of pair of sliding pin 30 and bracket 11 it
Between part covered by a pair of of shield 31.A pair of of shield 31 is scalable.
Caliper 13 has braking clamp body 34.Braking clamp body 34 is supported on bracket 11 via pair of sliding pin 30.In the shape
Under state, braking clamp body 34 is the state across brake disc 20.The braking clamp body 34 include cylinder portion 35, bridge part 36, claw 37,
A pair of of wrist 38, extension 201, guidance mounting portion 39, hose mounting portion 202 and bleeder mounting portion 203.Braking clamp body
34, by casting, are integrally formed with above-mentioned cylinder portion 35, bridge part 36, claw 37, a pair of of wrist 38, extension 201, guidance peace
Dress portion 39, hose mounting portion 202 and bleeder mounting portion 203.Specifically, braking clamp body 34 is formed by aluminium alloy.
Braking clamp body 34 is that inside is configured with cylinder portion 35 in the axial side of brake disc 20.Braking clamp body 34 is in brake disc 20
The axial other side be outside be configured with claw 37.Braking clamp body 34 is equipped with connection claw 37 and cylinder portion 35 across brake disc 20
Bridge part 36.
As shown in fig. 6, bridge part 36 is upwardly extended from the outside of the brake disc radial direction in cylinder portion 35, in brake disc axis.Bridge joint
Portion 36 is formed across the peripheral side of brake disc 20.Middle part in the brake disc direction of rotation of bridge part 36, which is formed with, to be run through
The fenestra 301 of brake disc radial direction.Fenestra 301 is the abrasion for operator's visual confirmation a pair of friction pad 12 and brake disc 20
The opening of state etc..Claw 37 is from the opposite side in the cylinder portion 35 of brake disc axial direction with bridge part 36 into brake disc radial direction
Side extends.The opposed faces 302 opposed with cylinder portion 35 are formed in 35 side of cylinder portion of the brake disc axial direction of claw 37.Opposed faces 302
Also with the axial side of brake disc 20 to be pressed face 20a opposed.
Caliper 13 is so-called fist formula caliper.As shown in Figure 1, being fixed with above-mentioned pair of sliding pin in a pair of of wrist 38
30.In the fixed pair of sliding pin 30 of a pair of of wrist 38 along brake disc axial direction.In the pair of sliding pin 30 that a pair of of wrist 38 is fixed
It is prominent from a pair of of wrist 38 to 37 side of claw.Pair of sliding pin 30 is fixed on a pair of of wrist 38 by a pair of bolts 41.A pair of bolts
41 screw togather from inside and pair of sliding pin 30.
As shown in fig. 6, the cylinder portion 35 of braking clamp body 34 has bore section 50 and cylinder bottom portion 51.Bore section 50 is tubular,
Cylinder bottom portion 51 occludes axial one end of bore section 50 and is arranged.Cylinder portion 35 is formed as bottomed tube.The cylinder portion 35 of braking clamp body 34
With cylinder opening portion 52.Cylinder portion 35 keeps its cylinder opening portion 52 opposed with the friction pad 12 of inside.Here, by the inner circumferential of bore section 50
Face and bottom surface are known as cylinder bore 55.The cylinder bore 55 is formed in cylinder portion 35.Cylinder bottom portion 51 is the cylinder bore bottom in cylinder portion 35.As shown in Figure 1,
The pair of sliding pin 30 that braking clamp body 34 is installed slideably is inserted in a pair of of guide hole 29 of bracket 11.In this way, such as Fig. 6 institute
Show, the central axis of the cylinder bore 55 in the cylinder portion 35 of braking clamp body 34 is formed as parallel with the central axis of brake disc 20.That is, braking
The axial direction and brake disc in the cylinder portion 35 of caliper 34 are axially consistent.
Cylinder bottom portion 51 is the cylinder bore bottom in cylinder portion 35.The first end side and cylinder bottom portion 51 of extension 201 are continuous.Extension 201
Along brake disc axial direction, further extend on the direction isolated with brake disc 20 from cylinder bottom portion 51.In this way, extension 201 and cylinder
The bottom surface of thorax 55 separates and is arranged.The configuration hole 56 that section is round is formed in extension 201.Configure hole 56 along relative to
The orthogonal direction of the axial direction in cylinder portion 35.In addition, being formed with intercommunicating pore 57 in cylinder bottom portion 51 and extension 201.Intercommunicating pore 57 is along cylinder
The axial direction in portion 35.Intercommunicating pore 57 is penetrated through from the central location of the bottom surface of cylinder bore 55 to configuration hole 56.Intercommunicating pore 57 is by cylinder portion 35
Cylinder bore 55 is connected to the configuration hole 56 of extension 201 and is formed.The configuration hole 56 and intercommunicating pore 57 for being set to extension 201 are constituted
Hole portion 304.
Interior position hole (position cave difficult to understand) 58 is formed in the inner circumferential of the cylinder bore 55 of the bore section 50 of braking clamp body 34.Interior position hole 58
It is formed in the inner circumferential of cylinder bore 55 near 51 side of cylinder bottom portion.Sliding eye 59 is formed in the inner circumferential of cylinder bore 55.The formation of sliding eye 59
In the interior position hole 58 than 55 inner circumferential of cylinder bore closer to 52 side of cylinder opening portion.Sliding eye 59 is the major diameter bigger than interior position hole 58.At this
Sliding eye 59 has been formed about seal groove 306 with the end of interior 58 opposite side of position hole.Seal groove 306 is annular shape.At this
Piston seal 60 is maintained in seal groove 306.It is carried out between 60 pairs of pistons 72 described below of piston seal and cylinder portion 35
Sealing.Inner peripheral surface in the interior position hole 58 of bore section 50 is formed with axial groove 64.Axial groove 64 is the inner peripheral surface in inside position hole 58
Radial depressions and the recess shapes that extend in the axial direction.
Caliper 13 has piston 72.Piston 72 has canister portion 70 and cover 71.Canister portion 70 is cylindrical shape, and cover 71 is circle
Plate.Piston 72 is formed as having cap tube shape.Piston 72 is accommodated in the cylinder bore 55 of braking clamp body 34.The work stored in cylinder bore 55
Plug 72 makes posture of 70 side of canister portion towards 51 side of cylinder bottom portion.Cylinder bore 55 is formed in cylinder portion 35.Specifically, piston 72 is slidably
Ground is embedded in the sliding eye 59 of cylinder bore 55.
Caliper 13 has shield 73.The inner peripheral portion and piston of 52 side of cylinder opening portion in cylinder portion 35 is arranged in shield 73
Between the peripheral part of 72 71 side of cover.Shield embeded slot 307 is formed in 52 side of cylinder opening portion of the cylinder bore 55 in cylinder portion 35.
Shield embeded slot 307 is annular shape.Shield 73 is entrenched in shield embeded slot 307 and piston 72.Shield 73 is on the outside
Cover the cylinder bore 55 in cylinder portion 35 and the gap of piston 72.Shield 73 is scalable.
Liquid entrance hole 207 is formed in the hose mounting portion 202 shown in Fig. 3 of caliper 13.In caliper 13, from installation
Brake fluid is imported to liquid entrance hole 207 in the brakehose (not shown) of hose mounting portion 202.In this way, to liquid entrance hole 207
The brake fluid of importing imports chamber 206 shown in fig. 6.Chamber 206 is between cylinder portion 35 and piston 72.Piston 72 is slideably
It is embedded in cylinder bore 55.Therefore, the hydraulic of the brake fluid slides piston 72 in the sliding eye 59 in cylinder portion 35, and from cylinder portion 35 to
The direction of friction pad 12 is mobile.By the movement of the piston 72, caliper 13 is slided relative to bracket 11, and by piston
72 hold a pair of of friction pad 12 from two sides with claw 37.Caliper 13 contacts a pair of of friction pad 12 with brake disc 20 as a result,.It changes
Yan Zhi, the piston 72 for being set to braking clamp body 34 press a pair of of friction pad 12 to brake disc 20.
Here, importing braking to the chamber 206 between cylinder portion 35 and piston 72 as described above when replacing brake fluid etc.
Liquid.At this point, air is discharged sometimes for from chamber 206.Therefore, as shown in FIG. 1 to FIG. 3, Fig. 5, in the system of braking clamp body 34
The outside of Moving plate radial direction is formed with bleeder mounting portion 203.Bleeder 208 is installed in the bleeder mounting portion 203.Via this
Bleeder 208.The air of chamber 206 is discharged.
Normal brake application is braked by carrying out stampede operation to brake pedal.When normal brake application, caliper 13 is via Fig. 3
Shown in liquid entrance hole 207, from master cylinder (not shown) to chamber 206 shown in fig. 6 import brake fluid pressure.Chamber 206 is located at cylinder
Between portion 35 and piston 72.Therefore, when importing brake fluid pressure to chamber 206, using the brake fluid pressure of importing, piston 72 is in cylinder
Sliding in portion 35, and it is allowed to prominent from cylinder portion 35 to the direction of claw 37.In this way, piston 72 makes a pair of of friction pad 12 and brake disc
20 contacts.Caliper 13 generates brake force as a result,.On the other hand, caliper 13 has stopping brake machine in braking clamp body 34
Structure 81.Parking brake mechanism 81 promotes the piston for being set to braking clamp body 34 72 mechanically, and non-used above-mentioned brake fluid
Pressure.Parking brake mechanism 81 presses a pair of of friction pad 12 to brake disc 20 by mechanically propelling piston 72.Stop as a result,
Vehicle arrestment mechanism 81 generates brake force.In other words, parking brake mechanism 81 is arranged for propelling piston 72 in braking clamp body 34
It is interior.Caliper 13 is the built-in caliper of built-in parking brake mechanism 81.
Parking brake mechanism 81 has cam mechanism 82.Cam mechanism 82 is accommodated in cylinder portion 35.The cam mechanism 82 tool
There are bearing 83 and rotary part 84.Bearing 83 is arc-shaped, is entrenched in the configuration hole 56 of braking clamp body 34.Rotary part
84 is substantially cylindric, and configuration is in configuration hole 56.Rotary part 84 is rotatably supported in configuration hole 56 via bearing 83.?
Rotary part 84 is formed with cam recess portion 85.Cam recess portion 85 is recessed from the outer radial periphery of rotary part 84 towards center position
Substantially V shape.The cam recess portion 85 makes the position being most recessed relative to the center axis deviation of rotary part 84.
Cam mechanism 82 has cam lever 88.The one end of cam lever 88 is inserted into cam recess portion 85, and another side configures
In intercommunicating pore 57.Rotary part 84, which is surrounded, rotates driving along the axis of the axis orthogonal direction in cylinder portion 35.In this way, the cam lever
88 due to cam recess portion 85 shape and change spin rotation member 84 overhang.The bottom of cam recess portion 85 is relative to rotating part
The center deviation of part 84.For cam recess portion 85 when rotary part 84 is rotated, the position of bottom is relative to intercommunicating pore as a result,
57 retreat.Therefore, cam recess portion 85 changes the cam lever 88 abutted with bottom to the overhang of 57 side of intercommunicating pore.
The configuration of rotary part 84 is in configuration hole 56.Here, as shown in Figure 1, Figure 2, Figure 5, a part of rotary part 84
It is prominent to the outside of brake disc radial direction from the extension 201 of braking clamp body 34.It is linked in the protrusion of rotary part 84
Rod unit 89.Rotary part 84 configuration be formed in extension 201, in configuration hole 56 shown in fig. 6.Rod unit 89 and rotation
Component 84 links.As a result, as shown in Figure 1, Figure 2, Figure 5, rod unit 89 is configured in the position of extension 201.Rotary part 84 is solid
Due to rod unit 89.Therefore, rotary part 84 is integrally rotated when rod unit 89 carries out rotation driving with rod unit 89.?
Extension 201 is equipped with configuration hole 56 shown in fig. 6.As shown in Figure 1, Figure 2, Figure 5, rotary part 84 is configured in configuration hole 56.
As shown in Figure 1, being fixed with stop component 211 in the outside of the brake disc radial direction of the extension 201 of braking clamp body 34.
Stop component 211 is abutted with the abutting part 210 of rod unit 89, and limitation rod unit 89 further rotates.It is equipped in rotary part 84
Spring 212.Rod unit 89 is rotated force to the direction abutted in abutting part 210 with stop component 211 by spring 212.Spring
212 are inserted into rotary part 84 by the coiler part in middle part, and are supported on rotary part 84.The one end card of spring 212
Only in the spring fastener 213 of rod unit 89, another side is locked on stop component 211.Down-lead card is formed in rod unit 89
Stop 214.Lead fastener 214 engages lead 15.In rod unit 89, down-lead card is equipped with side by side with spring fastener 213
Stop 214.
As shown in fig. 6, parking brake mechanism 81 has linear motion transmission mechanism 90.The transmission mechanism 90 that moves along a straight line is stored
In in cylinder portion 35.Linear motion transmission mechanism 90 is pressed by the cam lever 88 of cam mechanism 82, in the axial direction in cylinder portion 35
It is mobile.Linear motion transmission mechanism 90 includes push rod 91, clutch components 92, adjustment portion 93, lid part 95 and push rod
Force application spring 96.Adjustment portion 93 carries out push rod 91 and the position of clutch components 92 adjusts.The lid of linear motion transmission mechanism 90
Body component 95 is locked to cylinder portion 35 using the locating snap ring 97 of C-shaped.Shifting of the lid part 95 in the direction of cylinder opening portion 52 as a result,
It is dynamic to be limited.Cylinder bore 55 in cylinder portion 35 is formed with ring fastening groove 308.Ring fastening groove 308 is annular shape.Locating snap ring 97 is locked to
Ring fastening groove 308.
Push rod 91 is formed by front end component 98 and cardinal extremity component 99.Front end component 98 is located at 20 side of brake disc of push rod 91,
Cardinal extremity component 99 is located at the side opposite with brake disc 20 of push rod 91.Front end component 98 has screw axle portion 100 and flange part
101.Flange part 101 is substantially disk-shaped.Protrusion 102 is formed in the peripheral part of flange part 101.Protrusion 102 is to flange part 101
Radial outside it is prominent.The protrusion 102 is entrenched in the axial groove 64 in interior position hole 58 of bore section 50.Front end is limited as a result,
Rotation of the part 98 relative to cylinder portion 35.Clutch components 92 have internal screw thread 105.The screw of internal screw thread 105 and front end component 98
Axle portion 100 screws togather.
Cardinal extremity component 99 has axle portion 311 and flange part 312.Axial one end of flange part 312 from axle portion 311 is outside to diameter
Side extension.The flange part 312 of cardinal extremity component 99 is abutted with front end component 98.The axle portion 311 of cardinal extremity component 99 is slideably fitted into
In intercommunicating pore 57.The endless groove 313 being recessed from periphery towards radially inner side is formed in axle portion 311.It is configured in the endless groove 313
There is cricoid seal member 315.Seal member 315 is closed to carrying out between axle portion 311 and intercommunicating pore 57.Configure hole 56 and connection
Hole 57 constitutes hole portion 304.Parking brake mechanism 81 is equipped in the hole portion 304 for being set to extension 201.It is configured in configuration hole 56
A part of bearing 83, rotary part 84 and cam lever 88.A part, the base end part of cam lever 88 are configured in intercommunicating pore 57
Part 99 and seal member 315.
Parking brake mechanism 81 makes 82 rotary motion of cam mechanism via rod unit 89.Cam lever 88 is to push rod 91 as a result,
Cardinal extremity component 99 pressed.By the pressing, shifting that push rod 91 and clutch components 92 move along a straight line in the axial direction
It is dynamic, piston 72 is pressed.Make piston 72 relative to cylinder portion 35 as a result, is forced to 12 Slideslip of friction pad.Namely
It says, parking brake mechanism 81 generates pressing force by inputting to the rotation of rod unit 89, in the moving direction of piston 72.Adjustment portion
93 according to the abrasion of a pair of of friction pad 12, adjusts the screw axle portion 100 and clutch components 92 of the front end component 98 of push rod 91
The amount of screwing togather of internal screw thread 105.
As shown in Figure 1, caliper 13 has cable guide member 110.Cable guide member 110 is fixed using bolt 215
In the brake disc radial outside of the guidance mounting portion 39 of braking clamp body 34.Cable guide member 110 is to cable 16 to (not shown)
The wiring of stopping brake input mechanism guides.Side has installation pedestal portion 111 to cable guide member 110 at one end, another
One end has cable fastener 112.Guidance mounting portion 39 is fixed in installation pedestal portion 111.112 self installation base of cable fastener
Portions 111 erect in the direction opposite with guidance mounting portion 39.Cable fastener 112 is from installation pedestal portion 111 to brake disc diameter
It erects outward.Lead 15 is enclosed in cable 16, extends from the terminal part of cable 16.Cable fastener 112 is to interior packet lead 15
The linking part 120 of end of cable 16 engaged.The terminal part of lead 15 is locked to the lead fastener of rod unit 89
214.Therefore, rod unit 89 transmits the power from lead 15 to parking brake mechanism 81.
Fitting portion 216 is formed in the installation pedestal portion 111 of cable guide member 110.216 self installation base portion of fitting portion
111 surface indentation with guidance 39 opposite side of mounting portion, the surface from guidance 39 side of mounting portion are prominent.Installation pedestal portion
111 are fixed on guidance mounting portion 39 using bolt 215.At this point, fitting portion 216 is made to be embedded in guidance mounting portion 39.It installs as a result,
Base portion 111 is positioned relative to braking clamp body 34.Cable guide member 110 is positioned such that and is installed on braking clamp body 34
Outside.
As shown in fig. 7, the braking clamp body 34 shown in Fig. 7~Figure 11 is formed with guidance mounting portion 39.The of extension 201
One end and cylinder portion 35 are continuous, along brake disc axial direction, extend from cylinder portion 35 to the side opposite with brake disc 20.Guide mounting portion
39 are formed in the second end side with 20 detaching direction of brake disc of extension 201.Guidance mounting portion 39 is being braked from extension 201
It is prominent on the direction of rotation of disk 20.
As shown in Fig. 7, Fig. 8, Figure 11, planar portions 220 are formed in the brake disc radial outside of braking clamp body 34.Planar portions
220 are continuously formed throughout extension 201 with 39 both sides of mounting portion are guided, and are formed as same plane.Planar portions 220 are along system
Moving plate is axial.
Moreover, being formed with Fig. 7, configuration hole shown in Fig. 8 56 and mounting hole 221 in extension 201.Configure hole 56 and installation
Hole 221 is vertically formed in the range of planar portions 220 relative to the planar portions 220.Configuration hole 56 configured with Fig. 1, Fig. 2,
Fig. 5, rotary part shown in fig. 6 84.It screws togather in mounting hole 221, be fixed with Fig. 1, Fig. 3, stop component shown in fig. 5 211.Peace
Hole 221 is filled relative to configuration hole 56, is configured in the side opposite with cylinder portion 35 of brake disc axial direction.Mounting hole 221 is relative to matching
Hole 56 is set, is configured in the side opposite with guidance mounting portion 39 of brake disc direction of rotation.
Fig. 7, mounting hole shown in Fig. 8 225 and embedded hole 226 are formed in guidance mounting portion 39.Mounting hole 225 and chimeric
Hole 226 is vertically formed in the range of planar portions 220 relative to the planar portions 220.It screws togather in mounting hole 225, be fixed with figure
1, the fixed-use bolt 215 of Fig. 2, cable guide member 110 shown in fig. 5.Being fitted into embedded hole 226 has cable shown in FIG. 1
The fitting portion 216 of guide member 110.Mounting hole 225 is overlapped on the position of brake disc direction of rotation with embedded hole 226.With peace
Dress hole 225 is compared, and embedded hole 226 is configured in 35 side of cylinder portion of brake disc axial direction.As shown in figure 5, cable guide member 110 makes to pacify
Dress base portion 111 is abutted with planar portions 220.Cable guide member 110 is mounted on caliper in this state, using bolt 215
Body 34.
As shown in Figure 7, Figure 8, the configuration hole 56 and mounting hole 221 of guidance mounting portion 39 and extension 201 are in braking dish axle
To position be overlapped.Guidance mounting portion 39 is adjacent on brake disc direction of rotation with configuration hole 56 and mounting hole 221 and configures.Match
It sets the end position of 35 side of brake disc axial direction upper cylinder half portion in hole 56 and guides 35 side of brake disc axial direction upper cylinder half portion of mounting portion 39
End position is almost the same.As shown in fig. 7, intercommunicating pore 57 extends from configuration hole 56 to 35 side of cylinder portion, across extension 201 and cylinder
Portion 35 and be arranged.Therefore, intercommunicating pore 57 is axially disposed the position inconsistent with guidance mounting portion 39 in brake disc.It is specific and
Speech, in brake disc axial direction, although if the stem portion of intercommunicating pore 57 is overlapped with guidance 39 position of mounting portion, it is most of to be arranged
In the position not being overlapped with guidance mounting portion 39.In other words, in brake disc axial direction, intercommunicating pore 57 is on the whole than guiding mounting portion
39 are more biased towards 35 side of cylinder portion and are arranged.
As shown in Fig. 9, Figure 11, planar portions 230 are formed in the brake disc radially inner side of braking clamp body 34.Planar portions 230
It is continuously formed throughout extension 201 with 39 both sides of mounting portion are guided, and is formed as same plane.Planar portions 230 are along braking
Dish axle to.Planar portions 230 are configured in parallel with planar portions 220.In addition, as shown in Fig. 7~Fig. 9, Figure 11, in braking clamp body
34 are formed with planar portions 231.Planar portions 231 are in axial upper and 35 opposite side of cylinder portion the end position of brake disc of braking clamp body 34
It sets and is configured.Planar portions 231 are continuously formed throughout extension 201 with 39 both sides of mounting portion are guided, and are formed as same
Plane.Planar portions 231 are axially orthogonal with brake disc, also orthogonal with planar portions 220,230.
As shown in Figure 7, Figure 8, in the boundary bit with guidance mounting portion 39 and 231 opposite side of planar portions of extension 201
It sets and is formed with R chamfering 232.R chamfering 232 is cylinder planar.Maximum of the R chamfering 232 from the brake disc direction of rotation of extension 201
Projecting height is to guide mounting portion 39 from 1/2 or more of the maximum projecting height of the brake disc direction of rotation of extension 201.It needs
Illustrate, may not be R chamfering 232, but planar chamfering.
The first end side and cylinder portion 35 of extension 201 are continuous.The extension 201 is separated with cylinder portion 35 (i.e. brake disc 20)
Second end side shown in the Figure 11 in direction together, is formed as with guidance mounting portion 39 on the section orthogonal to the axial direction in cylinder portion 35
Substantially rectangular shape.The axial direction in cylinder portion 35 is axial consistent with brake disc 20.Brake disc 20 is pressed face 20a relative to braking
Disk is axially vertical.Second end side of extension 201 with guidance mounting portion 39 together, brake disc 20 be pressed face 20a
Oblong-shaped is shaped generally as on parallel section.
As shown in fig. 7, being formed with hose mounting portion 202 in braking clamp body 34.Hose mounting portion 202 from extension 201 to
The side opposite with guidance mounting portion 39 is prominent on brake disc direction of rotation.The end of extension 201 is planar portions 231.Hose
Mounting portion 202 is more biased towards than planar portions 231 on brake disc is axial and is formed in 20 side of brake disc.As shown in figure 9, pacifying in hose
Dress portion 202 is formed with above-mentioned liquid entrance hole 207.Brakehose (not shown) is installed in hose mounting portion 202.Hose installation
The brake fluid of portion's self brake hose in 202 future is imported to liquid entrance hole 207.The liquid entrance hole 207 is located its depth direction
Deep side, tilt closer to brake disc 20 brake disc is axially upper.Connect in liquid entrance hole 207 and cylinder bore 55 shown in Fig. 10
It is logical.
As shown in Fig. 7, Fig. 9, bleeder mounting portion 203 is formed in braking clamp body 34.Bleeder mounting portion 203 is being braked
Position between the hose mounting portion 202 and wrist 38 of the brake disc axial direction of caliper 34 is formed.Bleeder mounting portion 203 is in cylinder portion
It is formed than central location closer to 202 side of hose mounting portion on 35 brake disc direction of rotation.In the formation of bleeder mounting portion 203
There is the bleeder mounting hole 241 for 1~Fig. 3 of installation diagram, bleeder shown in fig. 5 208.Bleeder mounting hole 241 and Figure 10
Shown in connection in cylinder bore 55.In addition, as shown in Figure 10, Figure 11, being each formed with pin in a pair of of wrist 38 of braking clamp body 34
Mounting hole 242.Sliding pin 30 shown in FIG. 1 is separately installed in above-mentioned pin mounting hole 242.
Braking clamp body 34A shown in Figure 12~Figure 16 is that after casting, other than planar portions 231, other is all machinery
The component of raw material state before processing.As shown in figure 15, braking clamp body 34A includes the bottom including bottom outlet 58A and bottom outlet 59A
Hole 55A, cylinder portion 35A, bridge part 36 and the claw 37A formed with bottom outlet 57A by casting.Bottom outlet 58A is interior position hole 58
By the state before mechanical treatment.Bottom outlet 59A is sliding eye 59 by the state before mechanical treatment.Therefore, bottom outlet 55A is 55 quilt of cylinder bore
State before mechanical treatment.Bottom outlet 57A is intercommunicating pore 57 by the state before mechanical treatment.As shown in figs. 13 and 14, claw 37A
It is surface-treated for the cylinder portion side 35A to claw 37, forms the state before Fig. 8, opposed faces shown in Fig. 9 302.
In addition, the braking clamp body 34A of raw material state includes a pair of wrist 38A and Figure 12 shown in Figure 15, Figure 16
Shown in extension 201A, guidance mounting portion 39A, hose mounting portion 202A and bleeder mounting portion 203A.A pair of of wrist
38A is the state before being surface-treated to two faces of the brake disc axial direction of a pair of of wrist 38.A pair of of wrist 38A is a pair of of wrist
Portion 38, state shown in setting Figure 10, Figure 11 before a pair of pin mounting hole 242.Extension 201A is extension 201
, by being surface-treated form the state before planar portions 220 shown in Fig. 7~Fig. 9, Figure 11.Extension 201A is extension 201
, state before setting Fig. 7, configuration hole 56 shown in Fig. 8, intercommunicating pore 57 and mounting hole 221.Guidance mounting portion 39A be
Guidance mounting portion 39, by being surface-treated form the state before planar portions 220 shown in Fig. 7~Fig. 9, Figure 11.Guidance installation
Portion 39A is to guide mounting portion 39, state before setting Fig. 7, mounting hole shown in Fig. 8 225 and embedded hole 226.Hose
Mounting portion 202A is hose mounting portion 202, state before liquid entrance hole 207 shown in Fig. 9 is arranged.Bleeder mounting portion
203A be bleeder mounting portion 203, through setting Fig. 7, the state before bleeder mounting hole 241 shown in Fig. 9.
As shown in Figure 14, Figure 16, planar portions 230 are formed with by casting in extension 201A and guidance mounting portion 39A.Such as
Shown in Figure 12, Figure 13, in extension 201A and guidance mounting portion 39A, pass through between extension 201A and guidance mounting portion 39A
Casting is formed with R chamfering 232.That is, by casting be formed with braking clamp body 34 shown in Fig. 9, Figure 11 planar portions 230 and
Fig. 7, R chamfering 232 shown in Fig. 8.As shown in figure 12, even if in the braking clamp body 34A of raw material state, R chamfering 232 is prolonged certainly
The maximum projecting height of the brake disc direction of rotation of extending portion 201A is also that the braking of mounting portion 39A from extension 201A is guided to spiral
Turn 1/2 or more of the maximum projecting height in direction.The fenestra 301 of bridge part 36 is formed also by casting.The fenestra of bridge part 36
301, planar portions 230 and R chamfering 232 are without mechanical treatment, but are formed by casting.
Braking clamp body 34A is cast using mold.The mold matches the part for forming the claw 37A of braking clamp body 34A
It sets in lower part, extension 201A will be formed and guides mounting portion 39A's to be partly arranged at top.Mold is formed as forming extension
The upside of the part of portion 201A and guidance mounting portion 39A configures cast gate.Molten metal is injected from cast gate to mold.The melting of injection
Metal is sequentially filled the part of the formation claw 37A of mold, the part for forming bridge part 36, forms cylinder portion 35A and a pair of of wrist
The part of 38A and the part for forming extension 201A.Then, the braking using above-mentioned mold, to the raw material state of casting
Caliper 34A carries out mechanical treatment, obtains the braking clamp body 34 of above-mentioned shape.In the braking clamp body 34A of raw material state, as
The extension 201A of mould gate side and guidance mounting portion 39A, with the sectional area in the axial orthogonal face of brake disc greater than being formed
The part of the bottom outlet 59A of cylinder portion 35A shown in figure 15, with the sectional area in the axial orthogonal face of brake disc.
Stopping brake input mechanism (not shown) includes the brake parking lever for manual operation, for stampede operation
Parking brake pedal and passes through motor and the electric cable drawbench of progress etc. such as drive.Using the stopping brake input mechanism,
Relative to cable 16 shown in FIG. 1, lead 15 is pulled up in the side for reducing elongation.When relative to the pulling lead 15 of cable 16
When, rod unit 89 is integrally rotated with rotary part 84.In this way, rotary part 84 is via Fig. 6 institute in parking brake mechanism 81
The cam lever 88 shown presses push rod 91.By the pressing of the push rod 91, what clutch components 92 moved along a straight line in the axial direction
It is mobile, press piston 72.Clutch components 92 make piston 72 relative to cylinder portion 35 as a result, are forcibly breakked away to friction pad 12
It is dynamic.As a result, piston 72 presses a pair of of friction pad 12 to brake disc 20 with claw 37, brake force is generated.Therefore, Fig. 1 institute
The cable 16 and lead 15 shown is for operating parking brake mechanism 81.
In patent document 1, when having been proposed in cast caliper body, in the formation parking brake mechanism mounting portion of mold
Position configure cast gate.This is because the defects of gate portions are easy to produce shrink mark.However, when cannot ensure braking clamp body
Volume near cast gate, when forming the volume of mold cavity near the cast gate of braking clamp body, may gate portions with
Outer other positions generate the defects of shrink mark.For example, when bore section 50 generate casting it is empty when, though between piston 72 whether
Plunger sealing element 60 may not be able to all ensure leakproofness.In addition, for example, when the position of intercommunicating pore 57 generate casting it is empty when,
Whether it is configured with seal member 315 in cardinal extremity component 99, may not be able to all ensures leakproofness.
In contrast, the disk brake 10 of first embodiment passes through the cylinder portion for forming braking clamp body 34 casting integratedly
35, extension 201 and guidance mounting portion 39.First end side of extension 201 and the cylinder bore bottom, that is, cylinder bottom portion 51 in cylinder portion 35 connect
It is continuous, it is upwardly extended in the side isolated with brake disc 20.The rod unit 89 of parking brake mechanism 81 is equipped in extension 201.Guidance
Mounting portion 39 extension 201 and brake disc 20 detaching direction the second end side, from extension 201 brake disc 20 rotation
Side projects upwards and is formed.Cable guide member 110 is fixed in guidance mounting portion 39.Moreover, the second end of extension 201
Side together, is pressed on the parallel section face 20a with brake disc 20 with guidance mounting portion 39, is shaped generally as rectangle
Shape.
In this way, in braking clamp body 34, the end of part from cylinder bottom portion 51 to the end side opposite with brake disc 20 that extend from
Side is additionally provided with from extension 201 the guidance mounting portion 39 outstanding on the direction of rotation of brake disc 20 in addition to extension 201.It should
Mounting portion 39 and extension 201 is guided to form the section of substantially rectangular shape.It is accordingly possible to ensure from cylinder bottom portion 51 to braking
The volume of the end side for the part that the opposite end side of disk 20 extends.Moreover, in casting, in mold cavity, formation extension
The part of 201A and guidance mounting portion 39A and 20 opposite side of brake disc section sets cast gate.Thereby, it is possible to make conduct
The extension 201A of dykes and dams and guidance mounting portion 39A retarded coagulation.Therefore, the defects of capable of making shrink mark, which concentrates, to be generated in its influence
Lesser extension 201A and guidance mounting portion 39A.Shrink mark is generated in the equal other parts in cylinder portion 35 as a result, being able to suppress
The defects of.Therefore, the influence for the defects of being able to suppress shrink mark.
In addition, being partly arranged at the formation claw 37A of mold cavity on the downside of vertical direction, will form extension 201A
And guide mounting portion 39A's to be partly arranged at vertical direction upside.Moreover, in the formation extension 201A of mold cavity and guidance
The upside of the part of mounting portion 39A sets cast gate.Accordingly, because the volume on type chamber top is capable of increasing, thus it is possible to improve weight
Effect when power is cast as riser inhibits to generate cavity.
In addition, because can ensure to guide the thickness of mounting portion 39, thus it is possible to effectively improve its rigidity.Therefore, energy
Enough mitigate the whole weight of caliper 13.
In addition, being formed with the configuration hole 56 of the rotary part 84 of configuration and the connection of rod unit 89 in extension 201.In addition,
In extension 201, guides mounting portion 39 adjacent on brake disc direction of rotation with the configuration hole 56 and configure.Therefore, can press down
The increase of the brake disc axial length of braking clamp body 34 processed.
In addition, being made to be connected to cylinder bore 55 with the intercommunicating pore 57 for configuring hole 56 and being arranged in cylinder portion 35 and extension 201
In Moving plate axial direction, the position inconsistent with guidance mounting portion 39 is set.Therefore, it is able to suppress around intercommunicating pore 57 and generates contracting
The defects of trace.
In addition, being formed with R in the boundary position with guidance mounting portion 39 and 231 opposite side of planar portions of extension 201
Chamfering 232.R chamfering 232 is to guide mounting portion 39 and 1/2 or more of the height of extension 201 height to be formed.Therefore, energy
It is enough to inhibit to be involved in melt liquid when injection, it is able to suppress and generates melt liquid cold shut.
[second embodiment]
Then, it is based primarily upon Figure 17~Figure 35, is illustrated centered on the different piece with first embodiment of the invention
Second embodiment.It should be noted that using identical address, identical mark for position same as the first embodiment
Note.
As shown in Figure 17~Figure 19, Figure 21~Figure 23, in this second embodiment, extension also is equipped in braking clamp body 34
201.As shown in figure 23, the first end side Yu cylinder bottom portion 51 of extension 201 are continuous.Extension 201 along brake disc axial direction, with
Further extend on the isolated direction of brake disc 20 from cylinder bottom portion 51.
In this second embodiment, as shown in Figure 19, Figure 21, Figure 22, a part of rotary part 84 is from braking clamp body 34
Extension 201 it is prominent to the inside of brake disc radial direction.Rod unit 89 is linked in the protrusion of rotary part 84.Such as figure
18, shown in Figure 21, Figure 22, stop component 211 is fixed in the inside of the brake disc radial direction of the extension 201 of braking clamp body 34.
In this second embodiment, cable guide member 110 shown in Figure 17~Figure 22 is fixed on figure using bolt 215
19, the brake disc radially inner side of mounting portion 39 is guided shown in Figure 21, Figure 22.The cable fastener 112 of cable guide member 110
Extend from installation pedestal portion 111 to brake disc radially inner side.
In this second embodiment, as shown in Figure 24, Figure 26, Figure 29, the guidance mounting portion 39 of braking clamp body 34 is not formed
In the second end side with 20 detaching direction of brake disc of extension 201.Guide mounting portion 39 in the second end side with extension 201
It compares, be more biased towards and formed in the first end side.Mounting portion 39 is guided to dash forward on the direction of rotation of brake disc 20 from extension 201
Out.
In this second embodiment, as shown in Figure 26, Figure 28, Figure 29, in the brake disc radially inner side of guidance mounting portion 39
It is formed with planar portions 321.Planar portions 321 are along brake disc axial direction.Planar portions are formed in the brake disc radially inner side of extension 201
322.Planar portions 322 are along brake disc axial direction.Planar portions 321 are configured in parallel with planar portions 322.Planar portions 321 compare plane
The configuration of portion 322 is closer to brake disc radial outside.Planar portions 321,322 relative to the axial orthogonal planar portions of brake disc
231 is orthogonal.In the planar portions 220 of the brake disc radial outside of extension 201 any part is not installed.In the non-shape of planar portions 220
Cheng Youkong.
As shown in figure 29, hole 56 and mounting hole 221 are configured in the range of planar portions 322 of extension 201, relative to this
Planar portions 322 are vertically formed.In this second embodiment, mounting hole 225 and embedded hole 226 are in the plane for guiding mounting portion 39
In the range of portion 321, it is vertically formed relative to the planar portions 321.As shown in figure 21, cable guide member 110 makes to install base
Portions 111 are abutted with planar portions 321.Cable guide member 110 is installed on braking clamp body 34 in this state, using bolt 215.
In this second embodiment, the first end side of extension 201 is also continuous with cylinder portion 35.The extension 201 and cylinder
Second end side shown in portion 35 (i.e. brake disc 20) detaching direction, Figure 28 is formed on the section orthogonal with the axial direction in cylinder portion 35
For substantially rectangular shape.Second end side of extension 201 is formed with being pressed on the parallel section face 20a for brake disc 20
For substantially rectangular shape.
In this second embodiment, as shown in Figure 24~Figure 26, Figure 28, hose mounting portion 202 is from extension 201 to braking
On disc spins direction with guidance the ipsilateral protrusion of mounting portion 39.Hose mounting portion 202 is dashed forward from extension 201 to brake disc radial outside
Out.The configuration of hose mounting portion 202 is between extension 201 and guidance mounting portion 39.Hose mounting portion 202 and extension 201 and
Guide mounting portion 39 continuous.
In this second embodiment, as shown in Figure 17~Figure 19, Figure 23, Figure 24, bleeder mounting portion 203 as a whole and
It is formed in the position in the cylinder portion 35 of the brake disc axial direction of braking clamp body 34.Bleeder mounting portion 203 is formed in the braking in cylinder portion 35
The central location in disc spins direction.Bleeder mounting hole 241 is formed in brake disc radial direction.
For the braking clamp body 34 of second embodiment, have a look to be pressed parallel flat of face 20a with brake disc 20
The sectional area in the section of face cutting.In this way, most among sectional area in the range of cylinder portion 35 to extension 201 the smallest first
Small cross-sectional area becomes the smallest second minimum sectional area equal to or more than bridge part 36.
Here, the first minimum sectional area is the sectional area including the sectional area of hole portion 304.That is, the first smallest cross-sectional
Product is assuming that the configuration hole 56 of the not formed external opening to braking clamp body 34, mounting hole 221, mounting hole 225, embedded hole
226 and bleeder mounting hole 241 and intercommunicating pore 57 in the case where minimum sectional area.
On the other hand, the second minimum sectional area is the not sectional area including the sectional area of the fenestra 301 of bridge part 36.
That is, the second minimum sectional area is only the sectional area of 36 substantial portion of bridge part.
First minimum sectional area is the sectional area near the planar portions 231 of extension 201.First minimum sectional area and plane
The surface area in portion 231 is identical.Therefore, the surface area of planar portions 231 is also equal to or is greater than the second minimum sectional area.Second minimum section
Area is the sectional area for foring the part of fenestra 301 of bridge part 36.
The internal diameter of hole portion 304 is the internal diameter for configuring hole 56 and intercommunicating pore 57.The internal diameter for configuring hole 56 is greater than intercommunicating pore 57
Internal diameter.The internal diameter that hole 56 is configured among the internal diameter of hole portion 304 is maximum.The internal diameter of the cylinder bore 55 in cylinder portion 35 is interior position hole 58, sliding
Hole 59, seal groove 306, shield embeded slot 307 and ring fastening groove 308 internal diameter.The internal diameter of sliding eye 59 is greater than interior position hole
58 internal diameter.The internal diameter of ring fastening groove 308 is greater than the internal diameter of sliding eye 59.The internal diameter of seal groove 306 is greater than ring fastening groove 308
Internal diameter.The maximum inner diameter of shield embeded slot 307 is greater than the internal diameter of seal groove 306.Interior position hole 58 among the internal diameter of cylinder bore 55
Internal diameter is minimum.The internal diameter in hole 56 is configured among the internal diameter of hole portion 304 than the interior position hole 58 of cylinder bore 55, sliding eye 59, seal groove
306, any internal diameter of shield embeded slot 307 and ring fastening groove 308 is all small.The maximum inner diameter of hole portion 304 is less than cylinder bore 55
Minimum diameter.
As shown in figure 23, it is minimum range that extension 201, which has in its external portion with the central axis in cylinder portion 35 distance,
Minimum portion 331.The central axis in cylinder portion 35 is consistent with the central axis of intercommunicating pore 57.Minimum portion 331 is arranged in extension 201
Brake disc radially inner side.The position being overlapped in brake disc axial direction with intercommunicating pore 57 is arranged in minimum portion 331.In cylinder portion 35
The distance in mandrel line to minimum portion 331 is equal to or more than the radius of the sliding eye 59 of cylinder bore 55.The central axis in cylinder portion 35 is to most
The distance in small portion 331 is equal to or more than the radius in the interior position hole 58 of cylinder bore 55.That is, the central axis in cylinder portion 35 is to minimum portion 331
Distance be equal to or more than cylinder bore 55 minimum diameter half value.
In this second embodiment, braking clamp body 34A shown in Figure 30~Figure 35 is after casting, in addition to planar portions 231
Other in addition is all the component of the raw material state before mechanical treatment.Braking clamp body 34A includes cylinder portion 35A, bridge part 36, pawl
Portion 37A, a pair of of wrist 38A, extension 201A, guidance mounting portion 39A, hose mounting portion 202A and bleeder mounting portion
203A。
The extension 201A of braking clamp body 34A be extension 201, Figure 26, Figure 28, Figure 29 formed by surface treatment
Shown in state before planar portions 322.Extension 201A is configuration hole 56 shown in extension 201, perforation setting Figure 29, connects
State before through-hole 57 and mounting hole 221.Guidance mounting portion 39A be guide mounting portion 39, by be surface-treated formation
State before planar portions 321 shown in Figure 26, Figure 28, Figure 29.Guidance mounting portion 39A be guide mounting portion 39, through be arranged
State before mounting hole 225 and embedded hole 226 shown in Figure 26, Figure 29.Hose mounting portion 202A be hose mounting portion 202,
State before liquid entrance hole 207 shown in Figure 24, Figure 26, Figure 28 is set.Bleeder mounting portion 203A is bleeder installation
Portion 203, state shown in setting Figure 23, Figure 24 before bleeder mounting hole 241.By casting, in extension 201A
Form planar portions 220 shown in Figure 30, Figure 31, Figure 34.
For the braking clamp body 34A of second embodiment, also have a look with brake disc 20 to be pressed face 20a parallel
The sectional area in the section of plane cutting.For the smallest by first among the sectional area in the range of cylinder portion 35A to extension 201A
Minimum sectional area becomes the smallest second minimum sectional area equal to or more than bridge part 36.Here, the first minimum sectional area is
Sectional area including the sectional area of bottom outlet 57A.The second minimum sectional area of braking clamp body 34A and the second of braking clamp body 34
Minimum sectional area is identical.First minimum sectional area is the sectional area near the planar portions 231 of extension 201A.First smallest cross-sectional
Product is identical as the surface area of planar portions 231.
The braking clamp body 34A of second embodiment is also cast using mold.The mold is by the formation of braking clamp body 34A
Claw 37A's is partly arranged at lower part, and formation extension 201A is partly arranged at top.Mold is formed as forming extension
The upside of the part of portion 201A configures cast gate.Molten metal is injected from cast gate to mold.The molten metal of injection is successively to mold
Formation claw 37A part, form bridge part 36 part, form cylinder portion 35A and a pair of of wrist 38A part, formed and prolonged
The part of extending portion 201A and guidance mounting portion 39A only form being partially filled with for extension 201A.Moreover, to above-mentioned mold is utilized
The braking clamp body 34A of the raw material state of casting carries out mechanical treatment, obtains the braking clamp body 34 of above-mentioned shape.
The disk brake 10 of second embodiment passes through the cylinder portion 35 for forming braking clamp body 34 casting integratedly and extends
Portion 201.The one end of extension 201 and the cylinder bore bottom, that is, cylinder bottom portion 51 in cylinder portion 35 are continuous, in the direction isolated with brake disc 20
Upper extension.Extension 201 has the hole portion 304 equipped with parking brake mechanism 81.The braking clamp body 34 of second embodiment with
Brake disc 20 is pressed on the parallel section face 20a, the sectional area including hole portion 304 among cylinder portion 35 to extension 201
Sectional area inside is the smallest sectional area that the smallest sectional area is equal to or more than bridge part 36.
Volume thereby, it is possible to the extension 201 for ensuring to extend from from cylinder bottom portion 51 to the end side opposite with brake disc 20.And
And in casting, in the part of the formation extension 201A of the mold cavity, section sets with 20 opposite side of brake disc are poured
Mouthful.Thereby, it is possible to make the extension 201A of the upstream side for becoming molten metal flowing of mold, opposite with cylinder bottom portion 51 one
Side retarded coagulation.Therefore, can make to concentrate the defects of shrink mark generate influenced at it is lesser, extension 201A with cylinder portion 35A
Opposite side.As a result, being able to suppress the defects of other parts such as cylinder portion 35 and extension 201 generate shrink mark.Cause
This, the influence for the defects of being able to suppress shrink mark.In addition, because being capable of increasing the volume on type chamber top, thus it is possible to improve gravity
As the effect of riser when casting, it is able to suppress generation cavity.
In addition, the maximum inner diameter of hole portion 304 is less than the internal diameter of the sliding eye 59 in cylinder portion 35.However, the appearance of extension 201
It is equal to or more than the radius of the sliding eye 59 of the cylinder bore 55 in cylinder portion 35 with the minimum range at the center in cylinder portion 35.Thereby, it is possible to true
Protect the volume of the extension 201 extended from cylinder bottom portion 51 to the end side opposite with brake disc 20.Therefore, extension 201A can be made
The side the 51A retarded coagulation of cylinder bottom portion.Therefore, the defects of capable of making shrink mark, which concentrates, to be generated its influence is lesser, extension 201A
231 side of planar portions.As a result, being able to suppress the defects of the equal other parts in cylinder portion 35 generate shrink mark.Therefore, can press down
The influence of the defects of shrink mark processed.
As the disk brake based on embodiment as described above, such as it is contemplated that mode as described below.
The first method of the disk brake of embodiment is a kind of disk brake, comprising: braking clamp body, being equipped with will
The piston that at least a pair of of friction pad is pressed to brake disc；Parking brake mechanism is arranged in described to promote the piston
In braking clamp body；Rod unit transmits the power from lead to the parking brake mechanism；Cable guide member, is installed on
The outside of the braking clamp body, the cable for internally wrapping the lead are engaged.The braking clamp body is integrally formed with: cylinder
Portion configures in the axial side of the brake disc, is formed with the cylinder bore for storing the piston；Extension, first end
The cylinder bore bottom of side and the cylinder portion is continuous, upwardly extends in the side separated with the brake disc and is equipped with the rod unit；Guidance
Mounting portion is fixed with the cable guide member.Guidance mounting portion the separating with the brake disc in the extension
Second end side in direction protrudes on the direction of rotation of the brake disc from the extension and is formed.The institute of the extension
The second end side is stated together with the guidance mounting portion, is shaped generally as with being pressed on the parallel section in face for the brake disc
Oblong-shaped.Therefore, the defects of capable of making shrink mark, which generates, influences lesser extension and guidance mounting portion at it.Therefore, can
The influence for the defects of inhibiting shrink mark.
The second method of the disk brake of embodiment is based on first method, is formed with configuration and institute in the extension
State the configuration hole of the rotary part of rod unit connection.The guidance mounting portion is adjacent with the configuration hole and configures.Therefore, can
Inhibit the increase of the brake disc axial length of braking clamp body.
The Third Way of the disk brake of embodiment is based on second method, is equipped in the cylinder portion with the extension
It is connected to the cylinder bore in the cylinder portion and the intercommunicating pore in the configuration hole.In the axial direction of the brake disc, setting exists the intercommunicating pore
The inconsistent position with the guidance mounting portion.Therefore, it is able to suppress the defects of shrink mark is generated around intercommunicating pore.
The fourth way of the disk brake of embodiment is a kind of disk brake, comprising: braking clamp body, being equipped with will
The piston that at least a pair of of friction pad is pressed to brake disc；Parking brake mechanism is arranged in described to promote the piston
In braking clamp body；Rod unit transmits the power from lead to the parking brake mechanism；Cable guide member, is installed on
The outside of the braking clamp body, the cable for internally wrapping the lead are engaged.The braking clamp body includes cylinder portion, configuration
In the axial side of the brake disc, it is formed with the cylinder bore for storing the piston；Bridge part is being braked from the cylinder portion
Dish axle upwardly extends, and is formed across the peripheral side of brake disc；Claw, it is radially extending in brake disc from the bridge part,
It is formed with the opposed faces that be pressed face opposed with the brake disc；The cylinder bore bottom in extension, one end side and the cylinder portion connects
It is continuous, there is the hole portion for upwardly extending and being equipped with the parking brake mechanism in the side separated with the brake disc.With the system
Moving plate is pressed on the parallel section in face, and among the cylinder portion to the extension, sectional area including the hole portion exists
Interior sectional area is the smallest sectional area that the smallest sectional area is equal to or more than the bridge part.Therefore, shrink mark etc. can be made
Defect, which is generated, influences lesser, extension the side opposite with cylinder portion at it.Therefore, the shadow for the defects of being able to suppress shrink mark
It rings.
5th mode of the disk brake of embodiment is based on fourth way, the internal diameter of the hole portion of the extension
Less than the internal diameter for the sliding eye that the piston of the cylinder bore in the cylinder portion is slided, and the appearance of the extension and the cylinder
The minimum range at the center in portion is equal to or more than the radius of the sliding eye.Therefore, the defects of capable of making shrink mark, generates in its shadow
Ring lesser, extension the side opposite with cylinder portion.Therefore, the influence for the defects of being able to suppress shrink mark.
Industrial applicibility
According to above-mentioned disk brake, the influence for the defects of being able to suppress shrink mark.
Description of symbols
10 disk brakes；12 friction pads；13 calipers；15 leads；16 cables；20 brake discs；20a is pressed face；34
Braking clamp body；35 cylinder portions；36 bridge parts；37 claws；39 guidance mounting portions；51 cylinder bottom portions (cylinder bore bottom)；55 cylinder bores；56 configurations
Hole；57 intercommunicating pores；72 pistons；81 parking brake mechanisms；84 rotary parts；89 rod units；110 cable guide members；201 extend
Portion；302 opposed faces；304 hole portions.
Claims (5)
1. a kind of disk brake, comprising:
Braking clamp body is equipped with the piston for pressing at least a pair of of friction pad to brake disc；
Parking brake mechanism is arranged in the braking clamp body to promote the piston；
Rod unit transmits the power from lead to the parking brake mechanism；
Cable guide member, is mounted on the outside of the braking clamp body, and the cable for internally wrapping the lead is engaged；
The disk brake is characterized in that,
The braking clamp body is integrally formed with:
Cylinder portion configures in the axial side of the brake disc, is formed with the cylinder bore for storing the piston；
The cylinder bore bottom of extension, the first end side and the cylinder portion is continuous, upwardly extend in the side separated with the brake disc and
Equipped with the rod unit；
Mounting portion is guided, the cable guide member is fixed with；
The guidance mounting portion exists in the second end side with the brake disc detaching direction of the extension from the extension
It protrudes and is formed on the direction of rotation of the brake disc,
Second end side of the extension together with the guidance mounting portion, with the brake disc to be pressed face parallel
Section on be shaped generally as oblong-shaped.
2. disk brake as described in claim 1, which is characterized in that
It is formed with the configuration hole of configuration with the rotary part of rod unit connection in the extension,
The guidance mounting portion is adjacent with the configuration hole and configures.
3. disk brake as claimed in claim 2, which is characterized in that
It is equipped in the cylinder portion with the extension and is connected to the cylinder bore in the cylinder portion and the intercommunicating pore in the configuration hole,
The position inconsistent with the guidance mounting portion is arranged in the axial direction of the brake disc in the intercommunicating pore.
4. a kind of disk brake, comprising:
Braking clamp body is equipped with the piston for pressing at least a pair of of friction pad to brake disc；
Parking brake mechanism is set in the braking clamp body to promote the piston；
Rod unit transmits the power from lead to the parking brake mechanism；
Cable guide member, is installed on the outside of the braking clamp body, and the cable for internally wrapping the lead is engaged；
The disk brake is characterized in that,
The braking clamp body includes
Cylinder portion configures in the axial side of the brake disc, is formed with the cylinder bore for storing the piston；
Bridge part is upwardly extended in brake disc axis from the cylinder portion, is formed across the peripheral side of brake disc；
Claw, it is radially extending in brake disc from the bridge part, be formed with the brake disc to be pressed face opposed
Opposed faces；
Extension, one end side and the cylinder bore bottom in the cylinder portion are continuous, upwardly extend, have in the side separated with the brake disc
Hole portion equipped with the parking brake mechanism；
It is pressed on the parallel section in face with the brake disc, it is among the cylinder portion to the extension including described
Sectional area including the sectional area of hole portion is the smallest sectional area that the smallest sectional area is equal to or more than the bridge part.
5. disk brake as claimed in claim 4, which is characterized in that
The internal diameter of the hole portion of the extension is interior less than the sliding eye that the piston of the cylinder bore in the cylinder portion is slided
Diameter, and the minimum range at the center in the appearance of the extension and the cylinder portion is equal to or more than the radius of the sliding eye.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-011978 | 2017-01-26 | ||
| JP2017011978 | 2017-01-26 | ||
| PCT/JP2018/001178 WO2018139305A1 (en) | 2017-01-26 | 2018-01-17 | Disc brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110121608A true CN110121608A (en) | 2019-08-13 |
| CN110121608B CN110121608B (en) | 2021-01-15 |
Family
ID=62978289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880005276.5A Active CN110121608B (en) | 2017-01-26 | 2018-01-17 | Disc brake |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6735365B2 (en) |
| CN (1) | CN110121608B (en) |
| WO (1) | WO2018139305A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011252515A (en) * | 2010-05-31 | 2011-12-15 | Hitachi Automotive Systems Ltd | Disk brake |
| CN103727154A (en) * | 2014-01-14 | 2014-04-16 | 安思通（厦门）制动系统有限公司 | Integrated parking braking device |
| JP2015124794A (en) * | 2013-12-25 | 2015-07-06 | 曙ブレーキ工業株式会社 | Disc brake device |
| CN204548069U (en) * | 2015-04-24 | 2015-08-12 | 安徽江淮汽车股份有限公司 | A kind of braking during standstill wire drawing and brake caliper assembly mounting structure and a kind of automobile |
-
2018
- 2018-01-17 WO PCT/JP2018/001178 patent/WO2018139305A1/en active Application Filing
- 2018-01-17 JP JP2018564515A patent/JP6735365B2/en active Active
- 2018-01-17 CN CN201880005276.5A patent/CN110121608B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011252515A (en) * | 2010-05-31 | 2011-12-15 | Hitachi Automotive Systems Ltd | Disk brake |
| JP2015124794A (en) * | 2013-12-25 | 2015-07-06 | 曙ブレーキ工業株式会社 | Disc brake device |
| CN103727154A (en) * | 2014-01-14 | 2014-04-16 | 安思通（厦门）制动系统有限公司 | Integrated parking braking device |
| CN204548069U (en) * | 2015-04-24 | 2015-08-12 | 安徽江淮汽车股份有限公司 | A kind of braking during standstill wire drawing and brake caliper assembly mounting structure and a kind of automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110121608B (en) | 2021-01-15 |
| WO2018139305A1 (en) | 2018-08-02 |
| JPWO2018139305A1 (en) | 2019-11-07 |
| JP6735365B2 (en) | 2020-08-05 |
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Effective date of registration: 20210714 Address after: Ibaraki Patentee after: Hitachi astemo Co.,Ltd. Address before: Ibaraki Patentee before: HITACHI AUTOMOTIVE SYSTEMS, Ltd. |
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