WO2013031918A1 - ディスクブレーキ - Google Patents
ディスクブレーキ Download PDFInfo
- Publication number
- WO2013031918A1 WO2013031918A1 PCT/JP2012/072058 JP2012072058W WO2013031918A1 WO 2013031918 A1 WO2013031918 A1 WO 2013031918A1 JP 2012072058 W JP2012072058 W JP 2012072058W WO 2013031918 A1 WO2013031918 A1 WO 2013031918A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disk
- caliper
- support member
- brake
- disc
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
- B62L3/023—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever acting on fluid pressure systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/005—Brakes; Arrangements thereof constructional features of brake elements, e.g. fastening of brake blocks in their holders
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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
- F16D55/2265—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 the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
- F16D55/227—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 the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
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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
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0008—Brake supports
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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
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Definitions
- the present invention relates to a disc brake for braking a vehicle.
- This application claims priority based on Japanese Patent Application No. 2011-190014 filed in Japan on August 31, 2011, the contents of which are incorporated herein by reference.
- the present invention aims to provide a disc brake capable of improving productivity.
- one end side is inserted through insertion holes provided in the end portions of a pair of brake pads, and the other end side is caliper along the axial direction of the disc.
- a first support member slidably disposed in a first fitting hole provided in the carrier, a carrier provided with the first support member and fixed to the vehicle body, one end side fixed to the vehicle body, And a second support member slidably disposed in a second fitting hole provided in the caliper along the axial direction of the disk.
- the first support member Sometimes it is configured to receive a braking torque by contacting the insertion holes of the pair of brake pads, and the clearance between the first support member and the first fitting hole is the second support member and the Smaller than the clearance with the second fitting hole Rot to have.
- the carrier in the first aspect, may be fixed to the vehicle body by at least one mounting screw member.
- the disc brake according to the third aspect of the present invention in the first aspect or the second aspect, even if the carrier is fixed to the vehicle body on the one end side of the second support member. good.
- the first support member may be configured such that the pair of the first support members on the disc entry side during braking.
- the brake pad may be configured to receive the braking torque in contact with the insertion hole.
- the disc brake according to the fifth aspect of the present invention in any one of the first aspect to the fourth aspect, between the second support member and the second fitting hole.
- An elastic member may be interposed, and the clearance may be formed including the elastic member.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 1 shows the disc brake of one Embodiment which concerns on this invention.
- FIG. 9 is a view on arrow E of FIG. 8 showing the carrier of the disc brake according to the embodiment of the present invention. It is F arrow line view of FIG. 8 which shows the carrier of the disc brake of one Embodiment which concerns on this invention.
- FIG. 9 is a view on arrow G in FIG. 8 showing the carrier of the disc brake according to the embodiment of the present invention. It is a rear view which shows the carrier of the disc brake of one Embodiment which concerns on this invention.
- FIG. 9 is an H arrow view of FIG. 8 illustrating a carrier of a disc brake according to an embodiment of the present invention.
- the disc brake of this embodiment is a disc brake for vehicles, specifically for motorcycles.
- the disc brake 1 has a carrier 3 fixed to a front fork 2 of a vehicle as shown in FIGS. 1, 2, 4 to 6, and the disc brake 1 is shown in FIGS. 4 and a caliper 5 arranged so as to straddle the disk 4.
- the disc brake 1 includes a pair of brake pads 7, 8, a mounting member (second support member) 11 having a mounting bolt 9 and a sleeve 10, and a boot (elastic member) 12. And have.
- the disc brake 1 has a mounting bolt (mounting screw member) 13 and a boot 14.
- 1, 2, 4, and 5 indicate the rotation direction of the disk 4 when the vehicle moves forward
- the inlet side in the rotation direction R is the disk inlet side
- the outlet side is the outlet side.
- the following will be described as the disk delivery side.
- the axial direction of the disk 4 is the disk axial direction
- the radial direction of the disk 4 is the disk radial direction
- the rotational direction of the disk 4 is the disk rotational direction or the disk circumferential direction.
- front, rear, left and right when the vehicle is traveling forward when the vehicle is traveling straight ahead are referred to as front, rear, left and right.
- the front fork 2 has a cylindrical tube 20.
- the tube 20 is vertically up and down shown in FIGS. 1 and 5, and the front and rear shown in FIGS. Are arranged as follows. Therefore, the tube 20 is provided in the vehicle in a posture that inclines backward.
- the front fork 2 has a plate-like caliper support 21 that extends downward from the rear portion of the tube 20 and is integrally formed with the tube 20.
- the caliper support 21 is formed with the plate thickness direction in the left-right direction.
- the caliper support 21 is formed with a mounting hole 22 having a constant diameter penetrating in the thickness direction at the proximal end portion of the caliper support 21 on the tube 20 side, and the tip of the caliper support 21 opposite to the tube 20 is formed.
- the part is also formed with a mounting hole 23 having a constant diameter penetrating in the plate thickness direction.
- the periphery of the attachment hole 22 of the caliper support 21 is an attachment portion 24 for attaching the carrier 3, and the periphery of the attachment hole 23 of the caliper support 21 is an attachment portion 25 for attaching the carrier 3.
- the caliper support 21 extends from the disk delivery side to the disk delivery side along the disk rotation direction, and the mounting portion 24 and the mounting hole 22 are formed at the end of the disk delivery side.
- a mounting portion 25 and a mounting hole 23 are formed at the end portion on the disk feed-in side.
- the caliper support 21 including the mounting portions 24 and 25 is a non-rotating portion of a vehicle that does not rotate like a wheel.
- the disk 4 has a disk shape.
- the disc 4 is connected to the wheel so that the central axis rotates in unison with the wheel (not shown) that is the subject of braking of the disc brake 1 in a posture along the left-right direction.
- the carrier 3 has a mounting bracket 28 and a main pin (first support member) 29 fixed integrally to the mounting bracket 28 as shown in FIGS.
- the mounting bracket 28 is composed of a single plate-like member, and is inclined at an obtuse angle with respect to the base plate 31 from one end in the length direction of the base plate 31 and the base plate 31 that is long in one direction. And an extending plate portion 32 that extends.
- the base plate portion 31 has a screw hole 33 at the end opposite to the extension plate portion 32 and a screw hole 34 at the end on the extension plate portion 32 side. Is formed.
- the periphery of the screw hole 33 is an attachment portion 35 attached to the vehicle body side, and the periphery of the screw hole 34 is also an attachment portion 36 attached to the vehicle body side.
- a main pin mounting hole 38 shown in FIG. 9 is formed in the extending plate portion 32 so as to penetrate in the plate thickness direction at the end opposite to the base plate portion 31.
- the mounting bracket 28 is formed by punching a metal plate material by press molding, for example, and its outer shape is formed, and screw holes 33 and 34 and a main pin mounting hole 38 are formed in the punched plate material by cutting or the like. Configured.
- the mounting bracket 28 is not bent with respect to the plate material and does not have a protrusion in the plate thickness direction. Further, the thickness of the mounting bracket 28 is substantially constant.
- the main pin 29 includes, in order from one end in the axial direction, a torque receiving shaft portion 41 having a circular cross section having a constant diameter, a fixed shaft portion 42 having a larger diameter than the torque receiving shaft portion 41, and an intermediate shaft having a larger diameter than the fixed shaft portion A portion 43, a flange portion 44 having a larger diameter than the intermediate shaft portion 43, and a guide shaft portion 45 having a smaller diameter than the torque receiving shaft portion 41.
- the main pin 29 is made of metal, and only one main pin 29 is provided in one carrier 3.
- the main pin 29 is fitted and fixed to the main pin mounting hole 38 of the mounting bracket 28 at the fixed shaft portion 42 thereof.
- the main pin 29 is attached to the mounting bracket 28 and is orthogonal to the mounting bracket 28 and extends along the plate thickness direction of the mounting bracket 28.
- the main pin 29 includes a torque receiving shaft portion 41 protruding from one side in the plate thickness direction of the mounting bracket 28, an intermediate shaft portion 43 protruding from the other side in the plate thickness direction of the mounting bracket 28, a flange portion 44, and And a guide shaft portion 45.
- the mounting bracket 28 in a state where the mounting bracket 28 is disposed on the outer side (the side opposite to the wheel) which is one side of the disk 4 and the inner side (wheel side) of the caliper support 21,
- the carrier 3 is fixed to the caliper support 21 by mounting bolts 9 and 13.
- the extending plate portion 32 is disposed on the disk feed-in side, and the mounting bracket 28 is fixed in such a posture that the base plate portion 31 extends from the extended plate portion 32 to the disk feed-out side.
- the mounting bolt 9 is inserted into the mounting hole 22 on the proximal end side of the caliper support 21, that is, the disk delivery side, and is screwed into the screw hole 33 located on the disk delivery side of the mounting bracket 28.
- the mounting bolt 13 is inserted into the mounting hole 23 on the distal end side of the caliper support 21, that is, the disk insertion side, and is screwed into the screw hole 34 located on the disk insertion side of the mounting bracket 28. In this way, the carrier 3 is attached to the caliper support 21.
- the base plate portion 31 of the mounting bracket 28 extends in the disc rotation direction, and the extension plate portion 32 is the end portion of the base plate portion 31 on the disk entry side. From the disk to the outer side in the disk radial direction.
- a main pin 29 is provided at the distal end of the extending plate portion 32 on the disk entry side of the mounting bracket 28, and the main pin 29 extends on both sides along the disc axial direction.
- the main pin 29 protrudes from the mounting bracket 28 to the disk 4 side (inner side) so that the torque receiving shaft portion 41 crosses the disk 4 on the outer side in the disk radial direction.
- the intermediate shaft portion 43, the flange portion 44, and the guide shaft portion 45 protrude from the mounting bracket 28 to the opposite side (outer side) from the disk 4.
- the mounting bolt 13 disposed on the disk feed-in side is a metal bolt, and has a head 48 and a shaft portion 49 having a smaller diameter than the head 48 as shown in FIG.
- the shaft portion 49 is on the opposite side to the head portion 48 and has a screw shaft portion 50 having a male screw formed on the outer peripheral portion thereof, and a fitting shaft portion 51 having a constant diameter between the screw shaft portion 50 and the head portion 48. have.
- a shaft portion 49 is inserted into the mounting hole 23 of the caliper support 21 from the side opposite to the disk 4, and the mounting bolt 13 is attached to the carrier shaft in the screw shaft portion 50 while fitting the fitting shaft portion 51 into the mounting hole 23. 3 and screw holes 34.
- the head portion 48 sandwiches the attachment portion 25 around the attachment hole 23 of the caliper support 21 with the attachment portion 36 around the screw hole 34 of the carrier 3.
- the mounting bolt 13 fixes the mounting portion 36 of the carrier 3 to the mounting portion 25 of the caliper support 21 of the front fork 2.
- the mounting member 11 disposed on the disk delivery side has mounting bolts 9 and a sleeve 10 as shown in FIG.
- the mounting bolt 9 is a metal bolt and has a head 54 and a shaft 55 having a smaller diameter than the head 54.
- the shaft portion 55 is on the opposite side of the head portion 54 and has a screw shaft portion 56 having a male screw formed on the outer peripheral portion thereof, and a fitting shaft portion 57 having a constant diameter between the screw shaft portion 56 and the head portion 54. have.
- the sleeve 10 is made of an inelastic member such as metal and has a substantially cylindrical shape having an inner peripheral portion with a constant inner diameter.
- a pair of large diameter portions 60, 60, a pair of small diameter portions 61, 61, a pair of taper portions 62, 62, and a sliding guide portion 63 are formed on the outer peripheral portion of the sleeve 10.
- the pair of large diameter portions 60, 60 are formed at both ends in the axial direction of the sleeve 10 and have a constant diameter.
- the pair of small diameter portions 61, 61 are formed adjacent to each other inside the pair of large diameter portions 60 in the axial direction of the sleeve 10, and have a constant diameter smaller than those of the large diameter portions 60, 60.
- the pair of taper portions 62 and 62 are formed adjacent to each other inside the pair of small diameter portions 61 and 61 in the axial direction of the sleeve 10.
- a pair of taper parts 62 and 62 are the taper shape which becomes large diameter, so that it leaves
- the sliding guide portion 63 is formed between the pair of tapered portions 62 and 62 in the axial direction of the sleeve 10.
- the sliding guide portion 63 has a constant diameter that is continuous with the large diameter side of the tapered surface portions 62 and 62.
- the attachment member 11 is in a state in which, for example, the shaft portion 55 of the attachment bolt 9 is inserted into the sleeve 10 in advance.
- the shaft portion 55 protruding from the sleeve 10 of the mounting bolt 9 is inserted into the mounting hole 22 of the caliper support 21 from the side opposite to the disk 4, and the fitting shaft portion 57 is fitted into the mounting hole 22.
- the screw shaft portion 56 at the tip is screwed into the screw hole 33 of the carrier 3.
- the head portion 54 and the sleeve 10 of the mounting bolt 9 sandwich the mounting portion 24 around the mounting hole 22 of the caliper support 21 with the mounting portion 35 around the screw hole 33 of the carrier 3.
- the attachment member 11 fixes the attachment portion 35 of the carrier 3 to the attachment portion 24 of the caliper support 21 of the front fork 2 at the screw shaft portion 56 on one end side.
- the mounting portions 35 and 36 are fixed to the caliper support 21 by the mounting bolt 9 and the mounting bolt 13, so that the rotation of the carrier 3 is restricted.
- the boot 12 has a cylindrical shape that covers the outer peripheral side of the sleeve 10.
- the boot 12 is made of rubber and has a pair of engaging portions 67 and 67, a pair of stretchable portions 68 and 68, and a fitting sliding portion 69.
- the pair of engaging portions 67 and 67 are formed at both ends in the axial direction of the boot 12 and are formed in an annular shape with a constant inner diameter.
- the engaging portions 67 and 67 are fitted and fixed to the pair of small diameter portions 61 and 61 of the sleeve 10 with a margin.
- the pair of expansion / contraction portions 68 and 68 are formed adjacent to each other inside the pair of engagement portions 67 and 67 in the axial direction of the boot 12.
- the pair of expansion / contraction portions 68, 68 have a bellows-like shape in which small-diameter portions and large-diameter portions are alternately formed and can be expanded and contracted.
- the fitting sliding portion 69 includes a cylindrical portion 70 that has a cylindrical shape with a constant inner diameter and a constant outer diameter, and a pair of flange portions 71 and 71 that extend radially outward from both ends of the cylindrical portion 70. Have. The outer peripheral edge portions of the flange portions 71 and 71 are respectively connected to the stretchable portions 68 adjacent in the axial direction of the boot 12.
- the fitting sliding part 69 fits the sliding guide part 63 of the sleeve 10 on the inner side, and slides on the sliding guide part 63 in the axial direction while expanding and contracting the extension parts 68 and 68. It is possible.
- the caliper 5 is supported by the sleeve 10 of the mounting member 11 via the boot 12 so as to be slidable in the disk axial direction with respect to the carrier 3, and as shown in FIGS. It is also supported by the guide shaft portion 45.
- the caliper 5 is a so-called pin slide type caliper. As shown in FIG. 1, the caliper 5 includes a caliper body 75, a piston 76, and a pad pin 77.
- the caliper body 75 is formed by being integrally formed by casting from an aluminum alloy or the like and then being cut.
- the caliper body 75 is slidably attached to the sleeve 10 of the attachment member 11 and the main pin 29 shown in FIG. 4, as shown in FIG.
- the caliper body 75 includes a cylinder portion 80 disposed on the outer side of the carrier 3, a bridge portion 81 extending from the outer side in the disk radial direction of the cylinder portion 80 to the inner side so as to exceed the outer side in the radial direction of the disk 4, and a bridge And a claw portion 82 extending radially inward of the disk 4 so as to face the cylinder portion 80 from the inner end portion of the portion 81.
- a sliding portion 86 is formed on the cylinder portion 80 so as to protrude from the disc delivery side on the inner side in the disc radial direction so as to be located on the disc delivery side from the disc delivery side.
- the cylinder portion 80 has a sliding portion 87 projecting along the circumferential direction of the disk so as to be positioned closer to the disk insertion side from the disk insertion side on the outer side in the disk radial direction.
- the sliding portion 86 is formed with a fitting hole (second fitting hole) 88 having a constant inner diameter shown in FIG.
- the sliding portion 87 is formed with a fitting hole (first fitting hole) 89 having a constant inner diameter shown in FIGS. 2 and 4 from the disk 4 side to a midway position in the disk axial direction.
- the fitting sliding portion 69 of the boot 12 is integrally fitted in the fitting hole 88 of one sliding portion 86 of the caliper 5. That is, the sliding portion 86 is sandwiched between the flange portions 71 and 71 on both sides from both sides in the disk axial direction with the cylindrical portion 70 fitted in the fitting hole 88.
- the sliding guide portion 63 of the sleeve 10 is fitted into the fitting hole 88 of the sliding portion 86 via the fitting sliding portion 69 of the boot 12.
- the sliding portion 86 is slidable in the disk axial direction integrally with the fitting sliding portion 69 of the boot 12 by the guide of the sliding guide portion 63.
- the sliding portion 86 of the caliper 5 is supported by the sliding guide portion 63 of the sleeve 10 together with the fitting sliding portion 69 of the boot 12 so as to be slidable in the disk axial direction.
- the attachment member 11 having one end fixed to the caliper support 21 is slidably disposed in the fitting hole 88 provided in the caliper 5 along the disk axial direction on the other end.
- the surface of the sliding guide portion 63 of the sleeve 10 is coated with grease for smooth sliding of the fitting sliding portion 69 of the boot 12.
- the guide shaft portion 45 of the main pin 29 is slidably fitted in the fitting hole 89 of the other sliding portion 87 of the caliper 5.
- the sliding portion 87 is slidable in the disc axis direction by the guide of the guide shaft portion 45.
- the sliding portion 87 of the caliper 5 is supported by the guide shaft portion 45 of the main pin 29 so as to be slidable in the disk axial direction.
- the other end side of the main pin 29 whose one end side extends to the disk 4 side in the caliper 5 is slidably disposed in the fitting hole 89 provided in the caliper 5 along the disk axial direction.
- Grease for smooth sliding of the sliding portion 87 is applied to the guide shaft portion 45 of the main pin 29.
- the boot 14 is made of rubber, and engages with an engaging portion 92 that engages with the intermediate shaft portion 43 and the flange portion 44 of the main pin 29, a telescopic bellows-like elastic portion 93, and a sliding portion 87. And an engaging portion 94.
- the boot 14 always covers the guide shaft portion 45 protruding from the fitting hole 89.
- the caliper body 75 is formed in the direction along the disk axial direction by the mounting member 11 that fixes the carrier 3 to the front fork 2 and the main pin 29 provided on the carrier 3 that is fixed to the front fork 2. Is slidably supported by.
- the (main-side clearance) is smaller than the radial clearance C2 (sub-side clearance) of the fitting hole 88 of the caliper 5 with respect to the sliding guide portion 63 of the sleeve 10 of the mounting member 11 shown in FIG.
- the sub-side clearance of the fitting hole 88 of the caliper 5 with respect to the sliding guide portion 63 of the sleeve 10 is formed including the cylindrical portion 70 of the boot 12 interposed therebetween. That is, a combination of the clearance and deformation allowance of the cylindrical portion 70 with respect to the sliding guide portion 63 and the fitting hole 88 constitutes a sub-side clearance C2 between the sliding guide portion 63 and the fitting hole 88. Is done.
- the movement allowance of the caliper 5 in the direction perpendicular to the disk axis when the caliper 5 is supported only by the main pin 29 that is one of the two locations that slidably support the caliper 5 is covered by the boot 12 that is the other.
- This is smaller than the movement allowance of the caliper 5 in the direction perpendicular to the disk axis when supported by the broken sleeve 10 alone.
- the carrier 3 mainly receives the force generated by the braking torque by the main pin 29 having a small clearance with the caliper 5, and the mounting member 11 having a large clearance with the caliper 5 attaches the caliper 5 to the front fork 2. And pitch absorption.
- one bottomed bore 97 is formed in the cylinder portion 80 along the disk axial direction so as to open toward the claw portion 82 side.
- a pipe connection hole 98 communicating with the bore 97 is formed along the disk radial direction on the outer side in the disk radial direction of the bore 97, and a brake pipe (not shown) is connected to the pipe connection hole 89.
- an air bleeding bleeder plug 99 communicating with the bore 97 is attached to the disk delivery side from the pipe connection hole 98 of the cylinder portion 80.
- a piston 76 is slidably fitted into the bore 97 of the cylinder portion 80. The piston 76 protrudes toward the disk 4 along the axial direction of the bore 97 when hydraulic fluid is introduced into the bore 97 through the pipe connection hole 98.
- the claw portion 82 is formed with a recess 100 for passing a cutting tool when the bore 97 shown in FIG. 1 is machined.
- the recess 100 is formed in a shape that is recessed outward in the radial direction of the disk at the center in the circumferential direction of the disk.
- a delivery-side protruding portion 102 that protrudes toward the disk delivery side on the outer side in the disk radial direction is formed.
- a feeding-side protruding portion 103 that protrudes toward the disc feeding side on the outer side in the disc radial direction is formed.
- the pad pin 77 extends in the disk axial direction provided in the disk-side direction provided in the through-hole 102 a provided in the disk-side direction of the caliper body 75 and extending in the disk-axis direction. It is fitted in the through hole 103a.
- the pad pin 77 is formed with a guide shaft portion 104 having a constant diameter that is disposed between the delivery-side projection 102 and the delivery-side projection 103 in this fitted state.
- the pad pin 77 is made of metal, and the pad pin 77 extends along the disc axial direction so that the guide shaft portion 104 straddles the disc 4 on the disc radial outside of the disc 4 and on the disc delivery side of the bridge portion 81. Is arranged in the caliper body 75.
- the pair of brake pads 7 and 8 are provided on both surfaces of the disk 4 and supported by the torque receiving shaft portion 41 of the main pin 29 and the guide shaft portion 104 of the pad pin 77.
- the brake pad (first brake pad) 7 is disposed on the outer side which is one side of the disk 4
- the brake pad (second brake pad) 8 is on the other side of the disk 4. Located on the inner side.
- the brake pads 7 and 8 are mirror surfaces via the disk 4, and both are made of a metal that holds the friction material 106 on the main plate portion 108 and a friction material 106 that contacts the disk 4 to generate a frictional resistance. And a plate-shaped back metal 107. That is, a common back metal 107 is used for the outer side brake pad 7 and the inner side brake pad 8, and a common friction material 106 is applied to the outer side brake pad 7 and the inner side brake pad 7.
- the pad 8 is fixed on the opposite side. That is, the back metal 107 is a common part shared by the outer brake pad 7 and the inner brake pad 8.
- the back metal 107 will be described by taking the outer brake pad 8 shown in FIG. 5 as an example.
- the back metal 107 protrudes from the outer side in the disk radial direction of the main plate part 108 to the disk insertion side, and from the outer side in the disk radial direction of the main plate part 108 to the disk delivery side.
- An end protrusion 110 is formed in the end protrusion 109 on the disk insertion side so as to penetrate in the disk axial direction.
- the insertion hole 111 has a polygonal shape with rounded corners that approximate a square shape.
- the end protrusion 110 is formed with an engagement hole 112 penetrating in the disk axial direction.
- the engagement hole 112 is a long hole that is long in the disk circumferential direction.
- Each of the brake pads 7 and 8 has a torque receiving shaft portion 41 of the main pin 29 inserted through an insertion hole 111 formed on the disk insertion side, and an engagement hole 112 formed on the disk extraction side.
- the guide shaft portion 104 of the pad pin 77 is inserted.
- Each of the brake pads 7 and 8 is slidably supported by the torque receiving shaft portion 41 of the main pin 29 in the insertion hole 111 and slidable by the guide shaft portion 104 of the pad pin 77 in the engagement hole 112. Supported. Thereby, the torque bearing shaft portion 41 and the guide shaft portion 104 guide the sliding in the disk axial direction.
- the main pin 29 is inserted into the insertion holes 111 and 111 in which the torque receiving shaft portion 41 on one end side is provided at the ends of the pair of brake pads 7 and 8, respectively.
- the engagement holes 112 and 112 through which the pad pin 77 is inserted have a long hole shape that is long in the disk circumferential direction. For this reason, movement of the pair of brake pads 7 and 8 in the disk circumferential direction is restricted by the insertion holes 111 and 111 coming into contact with the torque receiving shaft portion 41. Therefore, the torque receiving shaft portion 41 of the main pin 29 of the carrier 3 receives and receives the braking torque generated in the pair of brake pads 7 and 8 by contacting the disk 4 during forward braking. .
- the main pin 29 receives the braking torque of the pair of brake pads 7 and 8 at the time of forward braking on the disk insertion side. Since the engagement holes 112 and 112 are movable in the disk radial direction, the pad pin 77 does not receive a braking torque.
- the carrier 3 is provided with one main pin 29 on which the pair of brake pads 7 and 8 slide on the disk insertion side.
- the pair of brake pads 7 and 8 are formed with insertion holes 111 through which the main pins 29 are inserted on the respective disk insertion sides.
- an engagement hole 112 that is an engagement portion that engages with the caliper 5 is formed in a portion other than the insertion hole 111.
- Both the outer brake pad 7 and the inner brake pad 8 are not supported by the mounting bracket 28, but are supported by the main pin 29 of the carrier 3 and the pad pin 77 of the caliper 5.
- the cylinder part 80 of the caliper 5 is arranged on the side opposite to the disk 4 of the brake pad 7 on the outer side, and the claw part 82 of the caliper 5 is arranged on the side opposite to the disk 4 of the brake pad 8 on the inner side. Is done.
- the carrier 3 is assembled to the caliper 5 in advance before assembling to the front fork 2 on the vehicle body side. That is, for example, in the state where the engagement portion 94 of the boot 14 is engaged with the sliding portion 87 of the caliper body 75, the fitting hole 89 of the sliding portion 87 or the guide shaft portion 45 of the main pin 29 of the carrier 3. Grease is applied, the guide shaft portion 45 is fitted into the fitting hole 89, and the engaging portion 92 of the boot 14 is engaged with the intermediate shaft portion 43 and the flange portion 44 of the main pin 29.
- the torque receiving shaft portion 41 of the main pin 29 of the carrier 3 is inserted into the insertion hole 111 of the brake pad 7 and then inserted into the insertion hole 111 of the brake pad 8.
- the pad pin 77 is inserted through the through hole 102a of the delivery side projection 102, the engagement hole 112 of the brake pad 7, the engagement hole 112 of the brake pad 8, and the through hole 103a of the delivery side projection 103, It fixes to the extraction side protrusion parts 102 and 103.
- the sleeve 10 is inserted inside the boot 12, and the engaging portions 67 and 67 on both ends of the boot 12 are fitted to the small diameter portions 61 and 61 on both sides of the sleeve 10. Then, in order to stabilize the posture of the carrier 3 with respect to the caliper 5, the mounting bolt 9 is inserted into the sleeve 10, and the screw shaft portion 56 of the mounting bolt 9 is lightly screwed into the screw hole 33 of the carrier 3 and temporarily fixed.
- the mounting bolt 9 is removed from the screw hole 33 temporarily fixed, and the screw shaft portion 56 is retracted into the sleeve 10. Then, a subassembly is arranged between the sleeve 10 and the mounting portion 35 of the mounting bracket 28 of the carrier 3 so that the mounting portion 24 of the caliper support 21 is positioned, and the mounting bolt 9 is protruded from the sleeve 10. Then, the caliper support 21 is inserted into the mounting hole 22. Then, the screw shaft portion 56 is screwed into the screw hole 33 of the mounting bracket 28.
- the caliper body 75 slides on the guide shaft portion 45 of the main pin 29 and the sliding guide portion 63 of the mounting member 11 shown in FIG. 7 so as to move the claw portion 82 to the disk 4 side. Then, the inner brake pad 8 is pressed by pressing with the claw portion 82. As a result, the inner brake pad 8 slides on the torque receiving shaft portion 41 of the main pin 29 and the guide shaft portion 104 of the pad pin 77 shown in FIG. In this way, the pair of brake pads 7 and 8 provided on both sides of the disk 4 are brought into contact with the disk 4, and the disk 4, that is, the wheel is braked by the frictional resistance.
- the pad pin 77 of the caliper 5 supports the pair of brake pads 7 and 8 with the engagement holes 112 that are long in the disk rotation direction. As a result, the engagement hole 112 and the pad pin 77 are provided with a predetermined gap in the disk rotation direction, and do not receive braking torque from the pair of brake pads 7 and 8.
- the disc brake 1 is a pull type disc brake that receives the braking torque during braking on the disc entry side, and the braking torque generated in the pair of brake pads 7 and 8 during braking when the vehicle moves forward. Only one main pin 29 on the disk insertion side receives.
- the disc brake described in Patent Document 1 has a structure in which a slide bolt is screwed into a vehicle body and fixed, and a caliper is slidably fitted to the slide bolt. For this reason, it is necessary to apply the grease to the sliding portion and the boot covering the sliding portion when assembling the caliper to the vehicle body, which complicates the assembling operation to the vehicle body and reduces productivity. . That is, when assembling to the vehicle body, the number of steps for simply applying grease and assembling the boot increases. Further, since the grease is applied at the time of assembling to the vehicle body, foreign matters are likely to be mixed into the grease. As a result, the frequency of foreign matter removal work at the time of mixing increases. Furthermore, since the grease is applied at the time of assembling to the vehicle body, the possibility of adhesion of the grease to other parts increases, and the frequency of the operation of removing the grease from the unnecessary application portion increases.
- the caliper 5 is slidably supported by the main pin 29 provided on the carrier 3 different from the vehicle body. Accordingly, the main pin 29 of the carrier 3 is slidably disposed in the fitting hole 89 of the caliper 5 in advance before the carrier 3 and the caliper 5 are assembled to the car body without any engagement work with the car body. It can be made into the state which carried out. Therefore, grease can be applied in advance to these sliding portions (the guide shaft portion 45 and the fitting hole 89) and covered with the boot 14, and in this state, it can be attached to the front fork 2 on the vehicle body side. Therefore, it is not necessary to apply grease to the sliding portion and assemble the boot 14 that covers the sliding portion when the caliper 5 is assembled to the vehicle body side. As a result, the assembly work to the vehicle body becomes easy and the productivity can be improved.
- the caliper 5 is slidably supported by the main pin 29 provided on the carrier 3 and the brake pads 7 and 8 are slidably supported. Therefore, the caliper 5 supporting member and the brake pads 7 and 8 are supported. The number of parts can be reduced compared to the case where the members to be provided are provided separately. Therefore, cost reduction and weight reduction can be achieved.
- the attachment member 11 is fixed to the front fork 2 at one end side having a screw shaft portion 56 for assembling the vehicle body, and the sliding guide portion 63 on the other end side slides in a fitting hole 88 provided in the caliper 5. Since the arrangement is possible, the attachment member 11 is assembled in advance into the fitting hole 88 of the caliper 5 before assembling the carrier 3 and the caliper 5 to the vehicle body without any engagement work with the vehicle body. Can do. Accordingly, the mounting member 11 is also applied to the front fork 2 on the vehicle body side after the grease is applied in advance to the sliding portions (the sliding guide portion 63 and the fitting sliding portion 69) and covered with the boot 12. Can be attached. Therefore, it is not necessary to apply grease to the sliding portion and to assemble the boot 12 that covers the fitting sliding portion 69 at the time of assembling the caliper 5 to the vehicle body side. Therefore, the assembly work to the vehicle body becomes easy and the productivity can be improved.
- the clearance between the main pin 29 and the fitting hole 89 of the caliper 5 is smaller than the clearance between the mounting member 11 and the fitting hole 88 of the caliper 5.
- the caliper 5 can be accurately guided by the main pin 29, and the clearance between the other mounting member 11 and the fitting hole 88 of the caliper 5 can be increased to facilitate the assembly.
- the carrier 3 is fixed to the front fork 2 while the caliper 5 is slidably supported by the mounting member 11, the parts can be shared and the weight can be reduced and the cost can be reduced.
- the carrier 3 is fixed to the front fork 2 by the mounting bolt 13, the mounting work is facilitated.
- the pair of brake pads 7 and 8 are slid by one main pin 29 arranged on the disk insertion side of the carrier 3, and this one main pin 29 is used during braking when the vehicle moves forward.
- a braking torque in the disk rotation direction generated at the pair of brake pads 7 and 8 is received. Therefore, since the braking torque is received on the disk insertion side, the self-servo effect does not occur, so the surface pressure on the disk insertion side of the brake pads 7 and 8 during braking can be reduced, and the surface pressure can be made uniform. Accordingly, uneven wear of the brake pads 7 and 8 can be reduced, so that the life of the brake pads 7 and 8 can be extended, the amount of brake operation can be reduced, and the brake operation feeling can be improved. Moreover, brake squeal can be suppressed.
- one main pin 29 receives a braking torque in the disk rotation direction generated at the pair of brake pads 7 and 8 during braking when the vehicle moves forward, the structure becomes simple and productivity can be improved.
- the shape of the mounting bracket 28 can be simplified, and the productivity can be improved.
- the back metal 107 can be shared by both brake pads 7 and 8, the types of parts can be reduced, and the manufacturing cost and the management cost can be reduced.
- the boot 12 which is an elastic member is interposed between the attachment member 11 and the fitting hole 88, and the clearance between the attachment member 11 and the fitting hole 88 including the boot 12 is formed, Even if the clearance is secured, rattling or the like can be suppressed.
- the disc brake according to the embodiment includes a pair of brake pads provided on both surfaces of a disc that rotates together with a vehicle wheel, a piston that presses the first brake pad out of the pair of brake pads, and a second A caliper having a claw portion for holding the brake pad, and one end side is inserted into an insertion hole provided in each end portion of the pair of brake pads, and the other end side is provided in the caliper along the axial direction of the disk.
- a first support member slidably disposed in the first fitting hole formed, a carrier provided with the first support member and fixed to the vehicle body, one end side fixed to the vehicle body, and the other end And a second support member slidably disposed in a second fitting hole provided in the caliper along the axial direction of the disk.
- the member is configured to receive a braking torque by contacting the insertion hole of the pair of brake pads during braking, and a clearance between the first support member and the first fitting hole is the second It is smaller than the clearance between the support member and the second fitting hole.
- the caliper is slidably supported by the first support member provided on the carrier, before the carrier and the caliper are assembled to the vehicle body, grease is applied to the sliding portions in advance. be able to. Therefore, it is not necessary to apply the grease to the sliding portion when assembling the caliper on the vehicle body side. Therefore, the assembly work to the vehicle body becomes easy and the productivity can be improved.
- the caliper is slidably supported by the first support member provided on the carrier and the brake pad is slidably supported. Therefore, the caliper supporting member and the brake pad supporting member are separately provided. Compared to the case, the number of parts can be reduced. Therefore, cost reduction and weight reduction can be achieved.
- the clearance between the first support member and the first fitting hole of the caliper is smaller than the clearance between the second support member and the second fitting hole of the caliper, the caliper is moved by the first support member. In addition to guiding accurately, the clearance between the second support member and the second fitting hole of the caliper can be increased to facilitate assembly.
- the carrier may be fixed to the vehicle body by at least one mounting screw member. As a result, when the carrier is fixed to the vehicle body side, the mounting operation is facilitated.
- the carrier may be fixed to the vehicle body at one end side of the second support member. Accordingly, the second support member can be disposed in the second fitting hole of the caliper before the caliper is assembled to the vehicle body. Therefore, since it is possible to apply grease to these sliding portions in advance before the carrier and caliper are assembled to the vehicle body, it is necessary to apply the grease to the sliding portion when the caliper is assembled to the vehicle body side. Disappear. Therefore, the assembly work to the vehicle body becomes easy and the productivity can be improved.
- the first support member may be configured to receive the braking torque by contacting the insertion holes of the pair of brake pads on the disk insertion side during braking. In this way, the first support member on the disk entry side receives the braking torque in the disk rotation direction generated in the pair of brake pads during braking when the vehicle moves forward. Therefore, since the torque at the time of braking is received on the disk entry side, the self-servo effect does not occur, so that the surface pressure on the disk entry side of the brake pad during braking can be reduced and the surface pressure can be made uniform. As a result, uneven wear of the brake pad can be reduced, so that the life of the brake pad can be extended, the amount of brake operation can be reduced, and the brake operation feeling can be improved.
- brake squeal can be suppressed.
- one torque receiving pin receives the braking torque in the disk rotation direction generated in the pair of brake pads during braking when the vehicle is moving forward, the structure is simplified and productivity can be improved.
- the shape of the mounting bracket can be simplified and productivity can be improved. Since the back metal can be shared by both brake pads, the types of parts can be reduced, and the manufacturing cost and the management cost can be reduced.
- An elastic member may be interposed between the second support member and the second fitting hole, and the clearance may be formed including the elastic member. Thereby, even if clearance is ensured, shakiness etc. can be suppressed.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Braking Arrangements (AREA)
Abstract
Description
本願は、2011年08月31日に、日本に出願された特願2011-190014号に基づき優先権を主張し、その内容をここに援用する。
3 キャリア
4 ディスク
5 キャリパ
7,8 ブレーキパッド
11 取付部材(第2の支持部材)
12 ブーツ(弾性部材)
13 取付ボルト(取付ネジ部材)
29 メインピン(第1の支持部材)
76 ピストン
82 爪部
88 嵌合穴(第2の嵌合穴)
89 嵌合穴(第1の嵌合穴)
111 挿通穴
Claims (5)
- 車両の車輪とともに回転するディスクの両面に設けられる一対のブレーキパッドと、
前記一対のブレーキパッドのうち第1のブレーキパッドを突出することで押圧するピストンと第2のブレーキパッドを押さえる爪部とを有するキャリパと、
一端側が前記一対のブレーキパッドの端部にそれぞれ設けられた挿通穴に挿通されるとともに、他端側が前記ディスクの軸方向に沿って前記キャリパに設けられた第1の嵌合穴に摺動可能に配置される第1の支持部材と、
前記第1の支持部材が設けられ車体に固定されるキャリアと、
一端側が前記車体に固定され、他端側が前記ディスクの軸方向に沿って前記キャリパに設けられた第2の嵌合穴に摺動可能に配置される第2の支持部材と、を備え、
前記第1の支持部材は、制動時に前記一対のブレーキパッドの前記挿通穴と接触して制動トルクを受けるように構成され、
前記第1の支持部材と前記第1の嵌合穴とのクリアランスは、前記第2の支持部材と前記第2の嵌合穴とのクリアランスより小さい
ディスクブレーキ。 - 前記キャリアは、少なくとも一つの取付ネジ部材によって前記車体に固定される
請求項1記載のディスクブレーキ。 - 前記第2の支持部材の前記一端側で前記キャリアが前記車体に固着されている
請求項1記載のディスクブレーキ。 - 前記第1の支持部材は、制動時にディスク回入側で前記一対のブレーキパッドの前記挿通穴と接触して前記制動トルクを受けるように構成されている
請求項1記載のディスクブレーキ。 - 前記第2の支持部材と前記第2の嵌合穴との間には弾性部材が介装され、前記弾性部材を含めて前記クリアランスが形成されている
請求項1記載のディスクブレーキ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013531407A JP5677581B2 (ja) | 2011-08-31 | 2012-08-30 | ディスクブレーキ |
CN201280042286.9A CN103814231B (zh) | 2011-08-31 | 2012-08-30 | 盘式制动器 |
BR112014004308A BR112014004308B8 (pt) | 2011-08-31 | 2012-08-30 | Freio a disco |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011190014 | 2011-08-31 | ||
JP2011-190014 | 2011-08-31 |
Publications (1)
Publication Number | Publication Date |
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WO2013031918A1 true WO2013031918A1 (ja) | 2013-03-07 |
Family
ID=47756396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/072058 WO2013031918A1 (ja) | 2011-08-31 | 2012-08-30 | ディスクブレーキ |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5677581B2 (ja) |
CN (1) | CN103814231B (ja) |
BR (1) | BR112014004308B8 (ja) |
WO (1) | WO2013031918A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0265725U (ja) * | 1988-11-07 | 1990-05-17 | ||
JP2003021177A (ja) * | 2001-07-06 | 2003-01-24 | Tokico Ltd | ディスクブレーキ |
JP2007064401A (ja) * | 2005-08-31 | 2007-03-15 | Hitachi Ltd | ディスクブレーキ |
JP2009002482A (ja) * | 2007-06-25 | 2009-01-08 | Nissin Kogyo Co Ltd | ピンスライド型車両用ディスクブレーキ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0443767Y2 (ja) * | 1987-03-13 | 1992-10-15 | ||
JPS6420544U (ja) * | 1987-07-29 | 1989-02-01 | ||
JP3795587B2 (ja) * | 1996-08-26 | 2006-07-12 | 日清紡績株式会社 | ディスクブレーキ装置 |
JP5277089B2 (ja) * | 2009-06-30 | 2013-08-28 | 日立オートモティブシステムズ株式会社 | ディスクブレーキ |
-
2012
- 2012-08-30 JP JP2013531407A patent/JP5677581B2/ja active Active
- 2012-08-30 WO PCT/JP2012/072058 patent/WO2013031918A1/ja active Application Filing
- 2012-08-30 CN CN201280042286.9A patent/CN103814231B/zh active Active
- 2012-08-30 BR BR112014004308A patent/BR112014004308B8/pt active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0265725U (ja) * | 1988-11-07 | 1990-05-17 | ||
JP2003021177A (ja) * | 2001-07-06 | 2003-01-24 | Tokico Ltd | ディスクブレーキ |
JP2007064401A (ja) * | 2005-08-31 | 2007-03-15 | Hitachi Ltd | ディスクブレーキ |
JP2009002482A (ja) * | 2007-06-25 | 2009-01-08 | Nissin Kogyo Co Ltd | ピンスライド型車両用ディスクブレーキ |
Also Published As
Publication number | Publication date |
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JP5677581B2 (ja) | 2015-02-25 |
BR112014004308A2 (pt) | 2017-03-28 |
BR112014004308B1 (pt) | 2021-08-03 |
CN103814231B (zh) | 2016-05-11 |
BR112014004308B8 (pt) | 2022-08-23 |
JPWO2013031918A1 (ja) | 2015-03-23 |
CN103814231A (zh) | 2014-05-21 |
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