WO2023032976A1 - 車両用ディスクブレーキのキャリパボディ - Google Patents
車両用ディスクブレーキのキャリパボディ Download PDFInfo
- Publication number
- WO2023032976A1 WO2023032976A1 PCT/JP2022/032574 JP2022032574W WO2023032976A1 WO 2023032976 A1 WO2023032976 A1 WO 2023032976A1 JP 2022032574 W JP2022032574 W JP 2022032574W WO 2023032976 A1 WO2023032976 A1 WO 2023032976A1
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- WIPO (PCT)
- Prior art keywords
- disk
- disc
- rotor
- vehicle
- caliper
- Prior art date
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 69
- 238000003780 insertion Methods 0.000 claims description 34
- 230000037431 insertion Effects 0.000 claims description 34
- 230000002787 reinforcement Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 description 37
- 238000005266 casting Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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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
- 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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/228—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side
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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
- F16D65/005—Components of axially engaging brakes not otherwise provided for
- F16D65/0068—Brake calipers
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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
- F16D2055/0016—Brake calipers
Definitions
- the present invention relates to a vehicle disc brake caliper body, and more particularly to a vehicle disc brake caliper body having reinforcing ribs.
- reinforcing ribs are formed by building up the caliper body, and although the rigidity of the caliper body can be secured, the weight increases.
- an object of the present invention is to provide a caliper body for a vehicle disc brake that can improve the rigidity of the caliper body with reinforcing ribs while suppressing an increase in weight.
- a caliper body of a vehicle disc brake is provided straddling the outer periphery of a disc rotor, and an action portion having a cylinder portion into which a piston is inserted is arranged on the side portion of the disc rotor.
- the action portion includes a turn-out side body portion extending from the cylinder portion to the disc turn-out side when the vehicle moves forward, and a disc turn-in side from the cylinder portion when the vehicle moves forward.
- a pair of disc drive-out side reinforcing ribs are provided on the disc radially outer side and the disc radially inner side of the side surface of the drive-in side body portion opposite the disc rotor, and extend from the cylinder portion side toward the disc drive-in side.
- a disc drive-in side reinforcing rib is provided, and the anti-disk rotor side surface between the pair of disc drive-out side reinforcing ribs and the anti-disk rotor side surface between the pair of disc drive-in side reinforcing ribs are thin. It is characterized by providing each part.
- the disc running-out side reinforcing rib and the disc running-in side reinforcing rib are formed continuously with the cylinder portion, and the side surface of the disc running-out side reinforcing rib opposite to the disc rotor and the disc running-in side reinforcing rib are formed continuously.
- the non-disk rotor side surface of the rib is preferably formed on the same plane as the non-disk rotor side surface of the cylinder portion, or on the disk rotor side of the non-disk rotor side surface of the cylinder portion.
- the caliper body is preferably formed by connecting a pair of acting portions arranged on both sides of the disc rotor with a bridge portion straddling the outer periphery of the disc rotor.
- a vehicle mounting portion is provided on the output side body portion and the input side body portion of the working portion, and the vehicle body mounting portion includes a bolt insertion hole in the disk radial direction through which a vehicle mounting bolt is inserted. preferably.
- the action portion is provided with a vehicle body mounting portion, and the vehicle body mounting portion has a bolt insertion hole extending in the disk axial direction through which a vehicle body mounting bolt is inserted.
- the pair of caliper bodies extending from the cylinder portion side to the disc run-out side on the disc radially outer side and the disc radially inward side of the side surface opposite to the disc rotor of the run-out side body portion
- a pair of disc drive-in side reinforcing ribs extending from the cylinder part side to the disc drive-in side on the disc radially outer side and disc radially inner side of the side surface opposite the disc rotor of the drive-in side body portion
- thin portions are formed on the anti-disk rotor side between the pair of disc drive-out side reinforcing ribs and on the anti-disk rotor side between the pair of disc drive-in side reinforcing ribs, respectively, thereby reducing the weight of the caliper body. can be suppressed.
- the disk exit-side reinforcing rib and the disk entry-side reinforcing rib are formed continuously on the cylinder portion, and the anti-disk-rotor side surface of the disk exit-side reinforcing rib and the anti-disk-rotor side of the disk entry-side reinforcing rib are formed.
- the side surface is on the same plane as the side surface of the cylinder portion opposite to the disk rotor, or is formed closer to the disk rotor than the side surface of the cylinder portion opposite to the disk rotor. Rigidity can be ensured while stabilizing.
- the caliper body is formed by connecting a pair of acting portions arranged on both sides of the disc rotor with a bridge portion that straddles the outer periphery of the disc rotor, thereby reducing the weight of the split type caliper body opposed to the piston. Rigidity can be improved while suppressing an increase in .
- the body mounting portion is provided on the outlet side body portion and the inlet side body portion of the action portion, and the vehicle body mounting portion is provided with a bolt insertion hole in the disk radial direction through which the vehicle body mounting bolt is inserted. It is possible to improve rigidity while suppressing an increase in the weight of the mount type caliper body.
- the action portion is provided with a vehicle body mounting portion, and the vehicle body mounting portion is provided with a bolt insertion hole extending in the disk axial direction through which the vehicle body mounting bolt is inserted, thereby increasing the weight of the axial mount type caliper body. It is possible to improve the rigidity while suppressing the
- FIG. 1 is a front view of a vehicle disc brake showing one embodiment of the present invention
- FIG. FIG. 3 is a rear view of the same vehicle disc brake; It is a top view of the disk brake for vehicles similarly. It is a side view of the disk brake for vehicles similarly.
- FIG. 5 is a cross-sectional view taken along line VV of FIG. 4;
- FIG. 2 is a sectional view taken along line VI-VI of FIG. 1;
- FIG. 2 is a cross-sectional view taken along line VII-VII of FIG. 1;
- FIG. 10 is an explanatory diagram for assembling the friction pads and pad springs to the caliper body; It is a perspective view of a pad spring.
- FIGS. 1 to 9 are diagrams showing one embodiment of a vehicle disc brake according to the present invention.
- Arrow A indicates the direction of rotation of a disc rotor that rotates integrally with a wheel when the vehicle moves forward.
- the disc retraction side is when the vehicle is moving forward.
- a vehicle disc brake 1 includes a disc rotor 2 that rotates integrally with a wheel (not shown) in the direction of arrow A, a caliper body 3 attached to one side of the disc rotor 2 to a vehicle body, and inside the caliper body 3, A pair of friction pads 5, 5 arranged opposite to each other with a disk rotor 2 interposed therebetween and hung by a hanger pin 4 are provided. 6 abut.
- the caliper body 3 is a radial mount type split caliper body, which is split by a bridge portion 3a that straddles the outer peripheral side of the disc rotor 2.
- the caliper body 3 is divided into a caliper half body 21 opposite to the vehicle body (a caliper half body of the present invention) and a caliper body 21 on the vehicle body side. It is formed by integrally connecting a half body 31 (a caliper half body of the present invention) with two connecting bolts 7 , 7 .
- a rectangular ceiling opening 3b having walls 3c, 3c parallel to the disk rotor 2 and walls 3d, 3d parallel to the disk axis is formed at the center of the bridge 3a in the disk circumferential direction. It is
- the caliper half body 21 on the side opposite to the vehicle body includes an action portion 21b in which cylinder portions 21a, 21a each having a cylinder hole 22 into which the piston 8 is inserted are arranged side by side in the disc circumferential direction, and a bridge portion constituting approximately half of the bridge portion 3a.
- the bridge portion halves 21c and 31c are formed with a ceiling opening portion 21d on the side opposite to the vehicle body and a ceiling opening portion 31d on the vehicle body side, which constitute approximately halves of the ceiling opening portion 3b.
- hydraulic pressure chambers 23, 23 into which hydraulic fluid is introduced are defined between the bottom sides of the cylinder holes 22, 22 and the pistons 8, 8. Further, a first hydraulic fluid introduction hole 24 is bored from the disk exit side of the dividing surface 21e, which is the joining surface of the bridge portion half 21c, toward the fluid pressure chamber 23 on the disk exit side.
- a first contouring processed portion 25a for communicating the fluid pressure chamber 23 on the disk output side and the first hydraulic fluid introduction hole 24 by contouring processing and a disk input side and a second contoured portion 25b that is contoured toward the fluid pressure chamber 23 of the second contoured portion 25b.
- a part of the bottom of the cylinder hole 22 on the disc insertion side is formed with a third contouring portion 25c that is contoured toward the second contouring portion 25b.
- a union hole 26 is provided on the disk exit side of the bridge part half 21c and opens to the disk exit side face 21f of the bridge part half 21c and the first hydraulic fluid introduction hole 24.
- the union hole 26 is A female threaded portion 26a into which a union bolt (not shown) is screwed is formed on the opening side.
- Radial mount type vehicle body attachment portions 27, 27 are formed on the disc inlet side and disc outlet side of the caliper half body 21 opposite to the vehicle body side.
- Mounting bolt insertion holes 27a, 27a are formed, and the caliper body 3 is mounted on the vehicle body by screwing mounting bolts inserted through the mounting bolt insertion holes 27a, 27a into caliper mounting portions provided on the vehicle body side.
- Large-diameter flange portions 27b, 27b for reinforcement are formed at the disk radially outer end portion and the disk radially inner end portion of each vehicle body mounting portion 27, respectively.
- the acting portion 21b of the caliper half 21 on the side opposite to the vehicle body includes cylinder portions 21a, 21a having cylinder holes 22, 22, and a drive-out side body extending from the cylinder portion 21a on the drive-out side of the disc toward the drive-out side of the disc. and a drive-in side body portion 21j extending from the disc drive-in side cylinder portion 21a toward the disc drive-in side.
- a pair of first reinforcing ribs 28, 28 (disc exit side reinforcing ribs of the present invention) are provided on the disk radially outer side and the disk radially inner side of the disk rotor side surface 21h of the exit side body portion 21g,
- the disc radially outer first reinforcing rib 28 connects the disc radially outward side cylinder portion 21a and the disc radially outwardly large-diameter flange portion 27b of the disc radially outward side mounting portion 27 to the vehicle body.
- the disc radially inner first reinforcing rib 28 connects the disc radially inner cylinder portion 21a and the disc radially inner large-diameter flange portion 27b of the disc radially inner side mounting portion 27 to the vehicle body. Further, a first lightening portion 21i, which is a thin portion, is formed by casting on the side surface 21h opposite to the disk rotor between the first reinforcing ribs 28,28.
- a pair of second reinforcing ribs 29, 29 are provided on the disk radially outer side and disk radially inner side of the side surface 21h opposite the disk rotor of the entry-side body portion 21j.
- the disc radially outer second reinforcing rib 29 connects the disc inlet side cylinder portion 21a and the disc radially outer large-diameter flange portion 27b of the disc inlet side vehicle mounting portion 27 .
- the disc radially inner second reinforcing rib 29 connects the disc inlet side cylinder portion 21a and the disc radially inner large-diameter flange portion 27b of the disc inlet side vehicle mounting portion 27 .
- a second cutout portion 21k which is a thin portion, is formed by casting on the side surface 21h opposite to the disk rotor between the second reinforcing ribs 29, 29. As shown in FIG.
- each first reinforcing rib 28 is closer to the disk exit side than the outer surface OS2 (opposite-disk-rotor side) of the cylinder portion 21a.
- the outer surface OS3 of each second reinforcing rib 29 is more inclined than the outer surface OS2 of the cylinder portion 21a (side surface opposite to the disk rotor). It is formed so as to gradually incline toward the disk rotor side toward the disk insertion side.
- a mounting boss portion 30 having a pin insertion hole 30a through which the hanger pin 4 is inserted is formed at the center portion in the disk circumferential direction of the disk radial direction outer surface of the action portion 21b.
- the vehicle body side caliper half 31 has fluid pressure chambers 33, 33 into which hydraulic fluid is introduced between the bottom sides of the cylinder holes 32, 32 and the pistons 8, 8. Further, a second hydraulic fluid introduction hole 34 is bored from the disk exit side of the dividing surface 31e, which is the joining surface of the bridge part half 31c, toward the fluid pressure chamber 33 on the disk exit side.
- the introduction hole 24 and the second hydraulic fluid introduction hole 34 communicate with each other at the dividing surfaces 21e, 31e.
- a fourth contouring processed portion 35a that communicates the fluid pressure chamber 33 on the disc running-out side with the second hydraulic fluid introduction hole 34 by contouring a part of the bottom portion of the cylinder hole 32 on the disc running-out side; It has a fifth contouring processed portion 35b that is contoured toward the fluid pressure chamber 33 on the disc inlet side. Further, a sixth contouring processed portion 35c is formed in a portion of the bottom portion of the cylinder hole 32 on the disc insertion side toward the fifth contouring processed portion 35b. By communicating the portion 35b and the sixth contoured portion 35c, the second hydraulic fluid introduction hole 34, the fluid pressure chamber 33 on the disc run-out side, and the fluid pressure chamber 33 on the disc run-in side communicate with each other. .
- a bleeder portion 37 having a bleeder hole 36 opening to the disk radial outer surface 31f and the second hydraulic fluid introduction hole 34 is provided on the disk exit side of the bridge portion half 31c.
- the bleeder hole 36 has a female threaded portion 36a into which a bleeder screw 39 is screwed on the opening side.
- a bleeder cap 40 made of rubber is attached to the tip head portion.
- the acting portion 31b of the vehicle body side caliper half 31 includes cylinder portions 31a, 31a having cylinder holes 32, 32, and a drive-out side body portion extending from the disc drive-out side cylinder portion 31a toward the disc drive-out side. and a drive-in side body portion 31j extending from the disc drive-in side cylinder portion 31a toward the disc drive-in side.
- a pair of third reinforcing ribs 41, 41 (disc exit side reinforcing ribs of the present invention) are provided on the disk radially outer side and the disk radially inner side of the disk rotor side surface 31h of the exit side body portion 31g,
- the disc radially outer third reinforcing rib 41 connects the disc run-out side cylinder portion 31a and the disc run-out side end portion of the run-out side body portion 31g.
- the disc radially inner third reinforcing rib 41 connects the disc radially outward side cylinder portion 31a and the disc radially outer third reinforcing rib 41 on the disc radially outward side.
- a thin third recessed portion 31i is formed by casting on the side surface 31h opposite to the disk rotor between the third reinforcing ribs 41, 41. As shown in FIG.
- a pair of fourth reinforcing ribs 42, 42 (disc entry side reinforcing ribs of the present invention) are provided on the disk radially outer side and the disk radially inner side of the disk rotor side surface 31h of the entry side body portion 31j.
- a fourth reinforcing rib 42 on the outer side in the disk radial direction connects the disk insertion side cylinder portion 31a and the disk insertion side end portion of the disk insertion side body portion 31j.
- the fourth reinforcing rib 42 on the inner side in the disk radial direction connects the cylinder portion 31a on the disk entry side and the disk rotor entry side of the fourth reinforcing rib 42 on the outer side in the disk radial direction.
- a thin fourth recessed portion 31k is formed by casting on the side surface 31h opposite to the disk rotor between the fourth reinforcing ribs 42,42.
- the outer surface (opposite-disk-rotor side) OS4 of each third reinforcing rib 41 is closer to the disk exit side than the outer surface OS5 (opposite-disk-rotor side) of the cylinder portion 31a.
- the outer surface (opposite disk rotor side) OS6 of each fourth reinforcing rib 42 is also more inclined than the outer surface OS5 (opposite disk rotor side) of the cylinder portion 31a. It is formed so as to gradually incline toward the disk rotor side toward the disk insertion side.
- a mounting boss portion 43 having a pin insertion hole 43a through which the hanger pin 4 is inserted is provided at the center portion in the disk circumferential direction of the outer surface of the action portion 31b in the disk radial direction. 30 are formed opposite to each other.
- the caliper body 3 is formed by joining the caliper half body 21 on the side opposite to the vehicle body and the caliper half body 31 on the vehicle body side, which are formed in this way, at the bridge portion 3a so that the dividing surfaces 21e, 31e are butted against each other, and the connecting bolts 7, 7 are connected. It is formed by concatenating with Furthermore, by connecting the caliper half body 21 on the side opposite to the vehicle body and the caliper half body 31 on the vehicle body side, the first hydraulic fluid introduction hole 24 and the second hydraulic fluid introduction hole 34 are communicated with each other.
- the hydraulic fluid introduction hole 24, the second hydraulic fluid introduction hole 34, the fluid pressure chambers 23 of the caliper half 21 on the opposite side of the vehicle body, and the fluid pressure chambers 33 of the caliper half 31 on the vehicle body side communicate with each other to form a fluid passage L1. be done.
- the union hole 26 communicates with the first hydraulic fluid introduction hole 24, the hydraulic fluid is supplied to the fluid passage L1 through the union hole 26.
- the bleeder hole 36 communicates with the second hydraulic fluid introduction hole 34 , the air mixed in the hydraulic fluid introduced into the fluid passage L ⁇ b>1 is discharged to the outside via the bleeder screw 39 .
- Friction pad accommodating portions 9 for accommodating the friction pads 5 are formed in the outlet side body portions 21g and 31g and the inlet side body portions 21j and 31j.
- the disc run-out side wall 9a of the friction pad accommodation portion 9 formed in the run-out side body portions 21g and 31g and the disc run-in side wall 9b of the friction pad accommodation portion 9 formed in the run-in side body portions 21j and 31j are: , and serves as a torque receiving portion that receives torque by coming into contact with the friction pads 5, 5 during braking.
- a locking groove 9c for locking the pad spring 6 is formed in the disc insertion side wall 9b. .
- Each friction pad 5 is composed of a lining 5a that slides on the side surface of the disc rotor 2 and a metal back plate 5b to which the lining 5a is adhered.
- a hanging piece 5e having a hanger pin insertion hole 5d through which the hanger pin 4 is inserted protrudes from the central portion of the disk radially outer surface 5c of the back plate 5b.
- a pair of first pad spring abutment portions 5f, 5f with which the pad spring 6 abuts are protruded adjacent to the side and the disk entry side.
- a pair of second pad spring abutment portions 5g, 5g are protrudingly provided at the disc leading-out side end and the disc leading-in side end of the disc radial direction outer surface 5c.
- the first pad spring contact portions 5f, 5f and the second pad spring contact portions 5g, 5g are provided in parallel in the disc circumferential direction on the disc radial outer surface 5c.
- the hanger pins 4 are inserted through the pin insertion holes 30a and 43a of the mounting bosses 30 and 43, respectively, and extend through the ceiling opening 3b of the caliper body 3 in the axial direction of the disc.
- the friction pads 5 are inserted into the hanger pin insertion holes 5d, 5d of the 5e, 5e, and the friction pads 5, 5 are accommodated in the friction pad accommodating portion 9 and suspended so as to be movable in the disk axial direction.
- a pad spring 6 is provided across the back plate 5b and the hanger pin 4, and presses the friction pads 5, 5 radially inwardly of the disc and on the outflow side of the disc.
- the pad spring 6 is formed by bending a piece of plate material that has been punched into a predetermined shape, and has an arc-shaped hanger pin contact portion 6a that contacts the inner peripheral surface of the hanger pin 4 in the radial direction of the disc. , extending from the hanger pin contacting portion 6a to the disk insertion side via the strip-shaped first spring piece 6b, and connecting the first pad spring contacting portion 5f on the disk insertion side of the friction pads 5, 5 to the disk insertion side.
- a first resilient portion 6c that abuts against the second pad spring abutting portion 5g on the side, and a belt-like second spring piece 6d that extends from the hanger pin abutting portion 6a to the disk exit side. , 5, and a second resilient portion 6e that abuts on the second pad spring abutting portion 5g on the disc run-out side.
- the first resilient portion 6c abuts against the first pad spring contact portion 5f of the friction pad 5 on the disk entry side, and rebounds the friction pads 5, 5 inward in the disk radial direction and on the disk rotor exit side.
- a first positioning piece 6g that comes into contact with the friction pads 5, 5 to position the pad spring 6 when the first resilient piece 6f, and the friction pads 5, 5 and the pad spring 6 are assembled to the caliper body 3.
- the first positioning pieces 6g, 6g and the second positioning pieces 6h, 6h are formed by cutting and raising a part of the first elastic piece 6f and bending them inward in the disk radial direction in an arc shape. As shown in FIG. 8, when the friction pads 5, 5 and the pad spring 6 are assembled to the caliper body 3, the first positioning pieces 6g, 6g are connected to the hanging pieces 5e, 5e and the first disc drive-in side first positioning pieces 6g, 6g.
- the recesses 5h, 5h (spaces) formed between the pad spring contact portions 5f, 5f are inserted into the recesses 5h, 5h (space portions).
- the spring abutting portions 5f, 5f abut on the disk-running side surfaces 5i, 5i, and the second positioning pieces 6h, 6h are located on the back plate 5b in the vicinity of the second pad spring abutting portions 5g, 5g on the disk-running side. It abuts on the disc radial outer surface 5c.
- the locking piece 6i protrudes toward the disc insertion side from the disc axial direction central portion of the disc insertion side end of the first elastic piece 6f, and the tip portion 6j is inserted into the locking groove 9c.
- the first elastic piece 6f is formed wide in the disk axial direction, and the end faces 6k, 6k on the side opposite to the disk rotor abut the walls 3c, 3c of the ceiling opening 3b, respectively.
- the second spring portion 6e is formed by bending the disk exit side outward in the radial direction of the disk in an arc shape, and the bent portion 6m is formed by connecting the second pad spring abutting portions 5g, 5g on the disk exit side to the disk. It is brought into contact with the turn-in side surfaces 5j, 5j. Further, the second resilient portion 6e is formed wide in the disk axial direction, and the end faces 6n, 6n (second restraining portion of the present invention) on the side opposite to the disk rotor are attached to the walls 3c, 3c of the ceiling opening 3b. abut.
- Walls 3c, 3c of the ceiling opening 3b on the side opposite to the disk rotor, with which the end faces 6k, 6k, 6n, 6n abut, are each formed of a casting surface.
- the disc radial outer side surface 9d of the locking groove 9c is formed radially outward of the accommodation groove 3e of the disc rotor 2 formed in the disc rotor side surface of the bridge portion 3a.
- the first positioning pieces 6g, 6g are inserted into the concave portions 5h, 5h formed between the hanging pieces 5e, 5e and the first pad spring abutting portions 5f, 5f on the disc entry side, abuts against the disk-running side surfaces 5i, 5i of the first pad-spring abutting portions 5f, 5f, and the second positioning pieces 6h, 6h are near the second pad-spring abutting portions 5g, 5g on the disc-running side.
- the pad spring 6 is in a state of being positioned with respect to the friction pads 5, 5 by abutting against the disk radial outer side surfaces 5c, 5c.
- the hanger pin 4 is inserted into the pin insertion hole 30a of the mounting boss portion 30 of the caliper half 21 on the side opposite to the vehicle body, 43a of the mounting boss portion 43 of the caliper half 31 on the vehicle body side, and the suspension provided in the friction pads 5 and 5.
- the hanger pins 4 are inserted through the hanger pin insertion holes 5d, 5d of the lower pieces 5e, 5e, and the friction pads 5, 5 are suspended so as to be movable in the disk axial direction.
- the outer peripheral surface of the hanger pin 4 on the inner side in the disk radial direction and the hanger pin contact portion 6a of the pad spring 6 come into contact with each other to press the pad spring 6, thereby setting the pad spring 6 as shown in FIG. Placed in the canonical position indicated.
- the hanger pin contact portion 6a of the pad spring 6 abuts against the outer peripheral surface of the hanger pin 4 on the inner side in the radial direction of the disk, and the tip portion 6j of the locking piece 6i is locked. It is locked in the groove 9c.
- the first elastic piece 6f of the first elastic portion 6c abuts on the disc radial outer side surfaces 5k, 5k of the first pad spring abutting portions 5f, 5f of the friction pads 5, 5 on the disc inlet side.
- the first pad spring abutment portions 5f, 5f , the friction pads 5, 5 are repulsed radially inward of the disc and on the outflow side of the disc.
- the bent portion 6m of the second elastic portion 6e abuts against the disc-incoming side surfaces 5j, 5j of the second pad spring abutting portions 5g, 5g on the disc-outgoing side of the friction pads 5, 5. , 5 to the inner side in the radial direction of the disc and to the outflow side of the disc.
- the end faces 6k, 6k, 6n, 6n abut on the walls 3c, 3c of the ceiling opening 3b on the side opposite to the disk rotor.
- the caliper body 3 of this embodiment includes first reinforcing ribs 28, 28, second reinforcing ribs 29, 29, third reinforcing ribs 41, 41, and fourth reinforcing ribs 42, 42. is provided, and a first lightening portion 21i, a second lightening portion 21k, a third lightening portion 31i, and a fourth lightening portion 31k, which are thin portions, are provided between the reinforcing ribs.
- the rigidity of the caliper body 3 can be improved while reducing the weight of the caliper body 3 as much as possible to prevent the cylinder portions 21a and 31a from bulging toward the side opposite the disk rotor during braking.
- the outer surface OS1 of the first reinforcing rib 28 is gradually inclined toward the disk rotor side toward the disk running-out side from the outer surface OS2 of the cylinder portion 21a, and the outer surface OS3 of the second reinforcing rib 29 is formed to , the outer surface OS2 of the cylinder portion 21a is gradually inclined toward the disk rotor side toward the disk insertion side, and the outer surface OS4 of the third reinforcing rib 41 is formed more inclined than the outer surface OS5 of the cylinder portion 31a.
- the outer surface OS6 of the fourth reinforcing rib 42 gradually inclines toward the disc rotor side toward the disc drive-out side, and the outer surface OS6 of the fourth reinforcing rib 42 gradually tilts toward the disc drive-in side from the outer surface OS5 of the cylinder portion 31a.
- the present invention is applicable not only to split type caliper bodies, but also to monocoque type caliper bodies.
- the side surface of the reinforcement rib formed on the caliper body opposite to the disk rotor may be formed on the same plane as the side surface of the cylinder portion opposite to the disk rotor.
- the number of pistons and the configuration of liquid passages are arbitrary.
- the caliper body may be of an axial mount type having mounting bolt insertion holes extending in the axial direction of the disc in the vehicle body mounting portion.
- the present invention is not limited to being applied to the caliper body of a piston-opposing type disc brake, as in this embodiment, but is also applicable to both sides of the disc rotor having an action portion provided with a piston and a reaction claw. It can also be applied to a caliper body of a pin slide type disc brake provided with a reaction portion.
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Abstract
Description
Claims (5)
- ディスクロータの外周を跨いで設けられ、前記ディスクロータの側部に、ピストンを挿入するシリンダ部を備えた作用部を配置した車両用ディスクブレーキのキャリパボディにおいて、
前記作用部は、前記シリンダ部から車両前進時におけるディスク回出側に延出する回出側ボディ部と、前記シリンダ部から車両前進時におけるディスク回入側に延出する回入側ボディ部とを備え、
前記回出側ボディ部の反ディスクロータ側面のディスク半径方向外側とディスク半径方向内側とに、前記シリンダ部側からディスク回出側に延出する一対のディスク回出側補強リブを設け、
前記回入側ボディ部の反ディスクロータ側面のディスク半径方向外側とディスク半径方向内側とに、前記シリンダ部側からディスク回入側に延出する一対のディスク回入側補強リブを設けるとともに、
一対の前記ディスク回出側補強リブの間の前記反ディスクロータ側面と、一対の前記ディスク回入側補強リブの間の前記反ディスクロータ側面とに、薄肉部をそれぞれ設けたことを特徴とする車両用ディスクブレーキのキャリパボディ。 - 前記ディスク回出側補強リブと前記ディスク回入側補強リブとは、前記シリンダ部に連続して形成され、前記ディスク回出側補強リブの反ディスクロータ側面と、前記ディスク回入側補強リブの反ディスクロータ側面とは、前記シリンダ部の反ディスクロータ側面と同一平面上か、或いは、前記シリンダ部の反ディスクロータ側面よりもディスクロータ側に形成されることを特徴とする請求項1記載の車両用ディスクブレーキのキャリパボディ。
- 前記キャリパボディは、前記ディスクロータの両側部に配置される一対の前記作用部を、前記ディスクロータの外周を跨ぐブリッジ部で連結して形成されることを特徴とする請求項1または2記載の車両用ディスクブレーキのキャリパボディ。
- 前記作用部の前記回出側ボディ部と前記回入側ボディ部には、車体取付部が設けられ、該車体取付部は、車体取付ボルトを挿通させるディスク半径方向のボルト挿通孔を備えていることを特徴とする請求項1乃至3のいずれか1項記載の車両用ディスクブレーキのキャリパボディ。
- 前記作用部には、車体取付部が設けられ、該車体取付部は、車体取付ボルトを挿通させるディスク軸方向のボルト挿通孔を備えていることを特徴とする請求項1乃至3のいずれか1項記載の車両用ディスクブレーキのキャリパボディ。
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EP22864558.6A EP4397883A1 (en) | 2021-08-31 | 2022-08-30 | Caliper body for vehicular disc brake |
JP2023545600A JPWO2023032976A1 (ja) | 2021-08-31 | 2022-08-30 | |
BR112023021695A BR112023021695A2 (pt) | 2021-08-31 | 2022-08-30 | Corpo de pinça para um freio a disco veicular |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0577634U (ja) * | 1992-03-19 | 1993-10-22 | 日信工業株式会社 | 車両用ディスクブレーキの分割型キャリパボディ |
JP2000074111A (ja) * | 1998-08-31 | 2000-03-07 | Tokico Ltd | 電動式ディスクブレーキ |
JP2018185053A (ja) * | 2018-08-29 | 2018-11-22 | 株式会社ミツバ | ブレーキ用アクチュエータおよびブレーキ装置 |
JP2019526758A (ja) * | 2016-09-09 | 2019-09-19 | クノール−ブレミゼ ジュステーメ フューア ヌッツファーツォィゲ ゲーエムベーハーKNORR−BREMSE System fuer Nutzfahrzeuge GmbH | 商用車用のディスクブレーキ |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0577634U (ja) * | 1992-03-19 | 1993-10-22 | 日信工業株式会社 | 車両用ディスクブレーキの分割型キャリパボディ |
JP2000074111A (ja) * | 1998-08-31 | 2000-03-07 | Tokico Ltd | 電動式ディスクブレーキ |
JP2019526758A (ja) * | 2016-09-09 | 2019-09-19 | クノール−ブレミゼ ジュステーメ フューア ヌッツファーツォィゲ ゲーエムベーハーKNORR−BREMSE System fuer Nutzfahrzeuge GmbH | 商用車用のディスクブレーキ |
JP2018185053A (ja) * | 2018-08-29 | 2018-11-22 | 株式会社ミツバ | ブレーキ用アクチュエータおよびブレーキ装置 |
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EP4397883A1 (en) | 2024-07-10 |
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