WO2024014302A1 - ディスクブレーキ - Google Patents

ディスクブレーキ Download PDF

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Publication number
WO2024014302A1
WO2024014302A1 PCT/JP2023/024218 JP2023024218W WO2024014302A1 WO 2024014302 A1 WO2024014302 A1 WO 2024014302A1 JP 2023024218 W JP2023024218 W JP 2023024218W WO 2024014302 A1 WO2024014302 A1 WO 2024014302A1
Authority
WO
WIPO (PCT)
Prior art keywords
disk
friction pad
plate
shim
contact
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.)
Ceased
Application number
PCT/JP2023/024218
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
貴仁 長田
祥一 野口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Astemo Ltd
Original Assignee
Hitachi Astemo Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Astemo Ltd filed Critical Hitachi Astemo Ltd
Priority to JP2024533632A priority Critical patent/JP7837414B2/ja
Publication of WO2024014302A1 publication Critical patent/WO2024014302A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—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
    • 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
    • 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
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor

Definitions

  • the present invention relates to a disc brake.
  • This application claims priority based on Japanese Patent Application No. 2022-112914 filed in Japan on July 14, 2022, the contents of which are incorporated herein.
  • the present invention provides a disc brake that can suppress deterioration in the ease of assembling a friction pad to a carrier.
  • a disc brake includes a friction pad and a carrier.
  • the friction pad includes a plate that is moved toward the disk by the thrust of a piston, a friction material provided on a surface of the plate on the disk side, and a shim provided on a surface of the plate opposite to the friction material. , a notch provided in the shim, and an ear protruding from at least one side in the longitudinal direction of the plate.
  • the carrier straddles the disc and connects a pair of bridge parts provided spaced apart in the circumferential direction of the disc, a groove part provided in the bridge part, and the pair of bridge parts, and reduces the friction in the axial direction of the disc. and an outer beam portion provided at a position facing the pad.
  • the friction pad which is provided at a position facing the outer beam portion in the axial direction of the disk, is inclined at a predetermined angle with respect to the radial direction of the disk, and the surface of the disk on the disk side of the friction material is
  • the outer beam portion and the friction pad are in contact with each other in a state in which the outer beam portion has an axial end portion, a contact portion where the disc comes into contact with, and a contact portion where the groove portion and the ear portion come into contact with each other.
  • the cutout portion is provided at the location.
  • FIG. 1 is a front view showing the disc brake of the first embodiment.
  • FIG. 1 is a sectional view showing a disc brake according to a first embodiment.
  • FIG. 2 is a partially enlarged front view showing the disc brake of the first embodiment.
  • FIG. 2 is a partially enlarged front view showing the disc brake of the first embodiment.
  • FIG. 3 is a perspective view showing a first pad spring of the disc brake according to the first embodiment. The front view which shows the 1st pad spring of the disc brake of 1st Embodiment.
  • FIG. 2 is a front view showing an outer friction pad of the disc brake according to the first embodiment.
  • FIG. 3 is a one-sided perspective view showing a process of assembling the outer friction pad to the carrier of the disc brake according to the first embodiment.
  • FIG. 1 is a sectional view showing a disc brake according to a first embodiment.
  • FIG. 2 is a partially enlarged front view showing the disc brake of the first embodiment.
  • FIG. 3 is a perspective view showing a
  • FIG. 3 is a one-sided perspective view showing a process of assembling the outer friction pad to the carrier of the disc brake according to the first embodiment.
  • FIG. 3 is a sectional view showing a process of assembling the outer friction pad to the carrier of the disc brake according to the first embodiment.
  • FIG. 3 is a partially enlarged cross-sectional view showing the process of assembling the outer friction pad to the carrier of the disc brake according to the first embodiment.
  • FIG. 3 is a schematic diagram illustrating the setting of the notch of the shim of the disc brake according to the first embodiment.
  • FIG. 3 is a schematic diagram illustrating the setting of the notch of the shim of the disc brake according to the first embodiment.
  • FIG. 3 is a schematic diagram illustrating the setting of the notch of the shim of the disc brake according to the first embodiment.
  • FIG. 3 is a schematic diagram illustrating the setting of the notch of the shim of the disc brake according to the first embodiment.
  • FIG. 7 is a one-sided perspective view showing the process of assembling the outer friction pad to the carrier of the disc brake according to the second embodiment.
  • FIG. 7 is a one-sided perspective view showing the process of assembling the outer friction pad to the carrier of the disc brake according to the second embodiment.
  • the front view which shows the 1st shim and the 2nd shim of the disc brake of 2nd Embodiment.
  • FIG. 19 is a sectional view taken along line XVIII-XVIII in FIG. 18 showing the first shim and second shim of the disc brake of the second embodiment.
  • FIG. 7 is a sectional view showing a process of assembling an outer friction pad to a carrier of a disc brake according to a second embodiment.
  • a disc brake 1 according to the embodiment shown in FIGS. 1 and 2 applies braking force to a vehicle such as an automobile.
  • the disc brake 1 is specifically for braking a four-wheeled vehicle.
  • the disc brake 1 brakes the rotation of a disc-shaped disc 10 that rotates together with unillustrated wheels of a vehicle.
  • the rotational axis that is the center of rotation of the disk 10 will be referred to as the disk rotational axis.
  • the direction in which the disk rotation axis extends is referred to as the disk axial direction.
  • the radial direction of the disc 10 within the disc brake 1, that is, the direction perpendicular to the disc rotation axis is referred to as the disc radial direction.
  • the circumferential direction within the disc brake 1 with respect to the disc rotation axis, that is, the rotation direction of the disc 10 is referred to as the disc circumferential direction or the disc rotation direction.
  • the exit side in the rotation direction R of the disc 10 in the disc brake 1 when the vehicle is moving forward is defined as the first side in the disc rotation direction
  • the inlet side in the rotation direction of the disc 10 in the disc brake 1 when the vehicle is moving forward is defined as the second disc rotation direction. side.
  • the disk rotation axis side in the disk radial direction is referred to as the disk radial inner side.
  • the side opposite to the disk rotation axis in the disk radial direction is referred to as the disk radial outer side.
  • the center side in the disc circumferential direction within the disc brake 1 is referred to as the inner side in the disc circumferential direction.
  • the side in the disc brake 1 that is opposite to the center in the disc circumferential direction is referred to as the outer side in the disc circumferential direction.
  • the outer side in the vehicle width direction of the vehicle provided with this disc brake 1 is referred to as the outer side.
  • the inner side in the vehicle width direction of a vehicle provided with this disc brake 1 is referred to as the inner side.
  • the disc brake 1 includes a carrier 11 and a caliper 12.
  • the carrier 11 includes a carrier body 20 and a pair of first pad springs 21 and second pad springs 22 shown in FIG. Further, the disc brake 1 includes an outer friction pad 23 (friction pad) and an inner friction pad 24 shown in FIG. 2 .
  • a line along the disk radial direction passing through the disk rotation axis and the center of the carrier body 20 and the caliper 12 in the disk circumferential direction is referred to as a disk radial direction reference line.
  • This disk radial reference line is orthogonal to the disk rotation axis.
  • a plane including the disk radial reference line and the disk rotation axis is referred to as a disk radial reference plane.
  • the carrier 11 is attached to a non-rotating knuckle (not shown) that supports a vehicle wheel.
  • the carrier 11 is fixed to a knuckle (not shown) while straddling the outer peripheral side of the disk 10 in the disk axial direction.
  • the carrier 11 is a mounting member that is attached to the knuckle of the disc brake 1, which is a vehicle component separate from the disc brake 1.
  • the carrier main body 20 is made of metal.
  • the carrier body 20 is integrally molded seamlessly.
  • the carrier main body 20 includes a fixing part 31, an outer beam part 32, and a pair of first bridge parts 33 (bridge parts) and second bridge parts 34 (bridge parts).
  • the carrier body 20 has a mirror-symmetrical shape with respect to the disk radial reference plane. In other words, the disk radial reference line and the disk radial reference plane pass through the center position of the carrier body 20 in the disk circumferential direction.
  • the fixing portion 31 is provided on one side of the disk 10 in the disk axial direction.
  • the fixing portion 31 is provided at a position facing a knuckle (not shown).
  • the fixing portion 31 is attached to a knuckle (not shown) in a state extending in the circumferential direction of the disk.
  • the fixing portion 31 is provided between the disk 10 and a knuckle (not shown) in the disk axial direction.
  • a knuckle (not shown) to which the carrier body 20 is attached is arranged on the inner side of the disk 10 in the disk axial direction. Therefore, the fixing part 31 attached to this knuckle is also arranged on the inner side of the disk 10 in the disk axial direction, as shown in FIG.
  • the fixing portion 31 faces the disk 10 in the disk axial direction.
  • the fixing portion 31 has a mirror-symmetrical shape with respect to the disk radial reference plane.
  • the fixing portion 31 includes a first attachment portion 41 , a second attachment portion 42 , and an inner connection portion 43 .
  • the first mounting portion 41 is located at the end of the fixed portion 31 on the first side in the disk rotation direction.
  • the first mounting portion 41 has a first mounting hole portion 45 .
  • the first mounting hole portion 45 passes through the first mounting portion 41 along the disk axial direction.
  • the second mounting portion 42 is located at the end of the fixed portion 31 on the second side in the disk rotation direction.
  • the second mounting portion 42 has a second mounting hole portion 46 .
  • the second mounting hole portion 46 passes through the first mounting portion 41 along the disk axial direction.
  • the inner side connecting portion 43 extends in the disk rotation direction and connects the first mounting portion 41 and the second mounting portion 42.
  • the first bridge portion 33 and the second bridge portion 34 have mirror-symmetrical shapes with respect to the disk radial reference plane.
  • the first bridge portion 33 has a first inner side extension portion 51, a first bridge body portion 52, and a first outer side extension portion 53.
  • the first inner side extending portion 51 extends outward in the disk radial direction from the first mounting portion 41 of the fixing portion 31.
  • the first inner side extension portion 51 is arranged on the inner side of the disk 10 in the disk axial direction.
  • the first inner side extension portion 51 faces the disk 10 in the disk axial direction.
  • the first bridge main body portion 52 extends from the outer end in the disk radial direction of the first inner side extension portion 51 toward the outer side along the disk axial direction, and also projects toward the inner side. A portion of the first bridge main body portion 52 extending toward the outer side straddles the radially outer side of the disk 10 in the disk axial direction. A first caliper support hole (not shown) extending in the disk axial direction from the inner end surface in the disk axial direction is formed in the first bridge main body 52 to a midway position of the first bridge main body 52 .
  • the first outer extending portion 53 extends inward in the disk radial direction from the outer end of the first bridge main body portion 52.
  • the first outer side extension portion 53 is arranged on the outer side of the disk 10 in the disk axial direction.
  • the first outer side extension portion 53 faces the disk 10 in the disk axial direction.
  • the first outer side extension part 53 has a first outer side locking part 55 formed on the inner side in the disk circumferential direction.
  • the first outer locking portion 55 has a shape that is recessed outward in the disk circumferential direction from the inner end surface of the first outer extending portion 53 in the disk circumferential direction.
  • the first outer locking portion 55 passes through the first outer extending portion 53 in the disk axial direction.
  • the first outer locking portion 55 has a first outer bottom surface 56, a first outer inner wall surface 57, and a first outer outer wall surface 58.
  • the first outer side bottom surface 56 is located at the outer end of the first outer side locking portion 55 in the disk circumferential direction. In other words, the first outer side bottom surface 56 is located at the end of the first outer side locking portion 55 on the back side in the recess direction.
  • the first outer bottom surface 56 has a planar shape that extends parallel to the disk radial reference surface.
  • the first outer side inner wall surface 57 extends inward in the disk circumferential direction from the inner end edge of the first outer side bottom surface 56 in the disk radial direction.
  • the first outer side inner wall surface 57 has a planar shape that extends perpendicularly to the disk radial direction reference line.
  • the first outer side wall surface 58 extends inward in the disk circumferential direction from the outer end edge of the first outer side bottom surface 56 in the disk radial direction.
  • the first outer side wall surface 58 has a planar shape that extends perpendicularly to the disk radial direction reference line.
  • the first outer side inner wall surface 57 and the first outer side outer wall surface 58 are parallel to each other and face each other.
  • a first inner side locking part having the same shape as the first outer side locking part 55 of the first outer side extension part 53 is also formed on the first inner side extension part 51.
  • the first inner locking portion has a shape that is recessed outward in the disk circumferential direction from the inner end surface of the first inner extending portion 51 in the disk circumferential direction.
  • This first inner side locking portion passes through the first inner side extension portion 51 in the disk axial direction.
  • This first inner-side locking portion includes a first inner-side bottom surface (not shown) disposed on the same plane as the first outer-side bottom surface 56 and a not-illustrated first inner-side bottom surface disposed on the same plane as the first outer-side inner wall surface 57. It has a first inner side wall surface and a first inner side outer wall surface (not shown) disposed on the same plane as the first outer side outer wall surface 58 .
  • the first bridge portion 33 which includes a first inner side extension portion 51, a first bridge main body portion 52, and a first outer side extension portion 53, straddles the disk 10 in the disk axial direction.
  • the second bridge portion 34 includes a second inner side extension portion 61, a second bridge body portion 62, and a second outer side extension portion 63.
  • the second inner side extending portion 61 extends outward in the disk radial direction from the second mounting portion 42 of the fixing portion 31.
  • the second inner side extension portion 61 is arranged on the inner side of the disk 10 in the disk axial direction.
  • the second inner side extension portion 61 faces the disk 10 in the disk axial direction.
  • the second bridge main body portion 62 extends from the outer end of the second inner side extension portion 61 in the disk radial direction toward the outer side along the disk axial direction, and also projects toward the inner side. A portion of the second bridge main body portion 62 extending toward the outer side straddles the radially outer side of the disk 10 in the disk axial direction. A second caliper support hole (not shown) extending in the disk axial direction from the inner end surface in the disk axial direction is formed in the second bridge main body 62 to a midway position of the second bridge main body 62 .
  • the second outer extending portion 63 extends inward in the disk radial direction from the outer end of the second bridge main body portion 62.
  • the second outer side extension portion 63 is arranged on the outer side of the disk 10 in the disk axial direction.
  • the second outer side extension portion 63 faces the disk 10 in the disk axial direction.
  • the second outer side extension part 63 has a second outer side locking part 65 formed on the inner side in the disk circumferential direction.
  • the second outer locking portion 65 has a shape that is recessed outward in the disk circumferential direction from the inner end surface of the second outer extending portion 63 in the disk circumferential direction.
  • the second outer side locking portion 65 penetrates the second outer side extension portion 63 in the disk axial direction.
  • the second outer locking portion 65 has a second outer bottom surface 66 , a second outer inner wall surface 67 , and a second outer outer wall surface 68 .
  • the second outer side bottom surface 66 is located at the outer end of the second outer side locking portion 65 in the disk circumferential direction. In other words, the second outer side bottom surface 66 is located at the end of the second outer side locking part 65 on the back side in the recess direction.
  • the second outer side bottom surface 66 has a planar shape extending parallel to the disk radial direction reference surface.
  • the second outer side inner wall surface 67 extends inward in the disk circumferential direction from the inner end edge of the second outer side bottom surface 66 in the disk radial direction.
  • the second outer side inner wall surface 67 has a planar shape that extends perpendicularly to the disk radial direction reference line.
  • the second outer wall surface 68 extends inward in the disk circumferential direction from the outer edge of the second outer bottom surface 66 in the disk radial direction.
  • the second outer wall surface 68 has a planar shape that extends perpendicularly to the disk radial reference line.
  • the second outer side inner wall surface 67 and the second outer side outer wall surface 68 are parallel to each other and face each other.
  • the first outer side bottom surface 56 shown in FIG. 3 and the second outer side bottom surface 66 shown in FIG. 4 are arranged parallel to each other with their positions aligned in the disk axial direction and the disk radial direction.
  • the first outer side inner wall surface 57 shown in FIG. 3 and the second outer side inner wall surface 67 shown in FIG. 4 are arranged on the same plane with alignment in the disk axial direction and the disk radial direction.
  • the first outer side wall surface 58 shown in FIG. 3 and the second outer side wall surface 68 shown in FIG. 4 are arranged on the same plane with their positions aligned in the disk axial direction and the disk radial direction.
  • the second inner side extension part 61 is also formed with a second inner side locking part having the same shape as the second outer side locking part 65 of the second outer side extension part 63. has been done.
  • the second inner locking portion has a shape that is recessed outward in the disk circumferential direction from the inner end surface of the second inner extending portion 61 in the disk circumferential direction.
  • This second inner side locking portion passes through the second inner side extension portion 61 in the disk axial direction.
  • This second inner-side locking portion includes a second inner-side bottom surface (not shown) disposed on the same plane as the second outer-side bottom surface 66 and a second inner-side bottom surface (not shown) disposed on the same plane as the second outer-side inner wall surface 67. It has a second inner side wall surface and a second inner side outer wall surface (not shown) disposed on the same plane as the second outer side outer wall surface 68 .
  • the second bridge portion 34 which includes a second inner side extension portion 61, a second bridge main body portion 62, and a second outer side extension portion 63, straddles the disk 10 in the disk axial direction.
  • the pair of first bridge portions 33 and second bridge portions 34 both straddle the disk 10 and are provided spaced apart from each other in the circumferential direction of the disk 10, as shown in FIG.
  • the outer beam portion 32 includes an inner end in the disk radial direction of the first outer side extension portion 53 of the first bridge portion 33 and an inner end in the disk radial direction of the second outer side extension portion 63 of the second bridge portion 34. It connects the department. In other words, the outer beam portion 32 connects the pair of first bridge portions 33 and second bridge portions 34. As shown in FIG. 2, the outer beam portion 32 is provided on the outer side of the disk 10 in the disk axial direction. The outer beam portion 32 faces the disk 10 in the disk axial direction. The outer beam portion 32 extends in the circumferential direction of the disk, as shown in FIG. The outer beam portion 32 has a mirror-symmetric shape with respect to the disk radial reference plane.
  • the outer beam portion 32 includes a first base extension portion 81 (straight portion), a second base extension portion 82 (straight portion), and an outer side connection portion 83 (convex portion, arcuate portion). There is.
  • the first proximal extending portion 81 is located at the end of the outer beam portion 32 on the first side in the disk rotation direction.
  • the first proximal extending portion 81 extends inward in the disk circumferential direction from the disk radially inner end of the first outer extending portion 53 of the first bridge portion 33 .
  • the first proximal end extension 81 has a linear shape perpendicular to the disk radial reference plane.
  • the first proximal extension portion 81 has a first outer surface portion 91 on the outer side in the disk radial direction.
  • the first outer surface portion 91 has a planar shape that extends perpendicularly to the disk radial reference line.
  • the first proximal extension portion 81 has a first inner surface portion 92 on the inner side in the disk radial direction.
  • the first inner surface portion 92 has a planar shape that extends perpendicularly to the disk radial direction reference line.
  • the second base end extension portion 82 is located at the end of the outer beam portion 32 on the second side in the disk rotation direction.
  • the second proximal extending portion 82 extends inward in the disk circumferential direction from the disk radially inner end of the second outer extending portion 63 of the second bridge portion 34 .
  • the second proximal end extension 82 has a linear shape perpendicular to the disk radial direction reference plane.
  • the first base end extension part 81 and the second base end extension part 82 are arranged on the same straight line.
  • the second proximal extension portion 82 has a second outer surface portion 95 on the outer side in the disk radial direction.
  • the second outer surface portion 95 has a planar shape that extends perpendicularly to the disk radial reference line.
  • the second outer surface portion 95 is arranged on the same plane as the first outer surface portion 91 in alignment with the disk axial direction and the disk radial direction.
  • the second proximal extending portion 82 has a second inner surface portion 96 on the inner side in the disk radial direction.
  • the second inner surface portion 96 has a planar shape that extends perpendicularly to the disk radial direction reference line.
  • the second inner surface portion 96 is arranged on the same plane as the first inner surface portion 92 in alignment with the disk axial direction and the disk radial direction.
  • the outer connecting portion 83 is provided at the center of the outer beam portion 32 in the disk rotation direction.
  • the outer connecting portion 83 connects the inner end of the first base extension 81 in the disk circumferential direction and the inner end of the second base extension 82 in the disk circumferential direction.
  • the outer connecting portion 83 has an arc shape centered on the disk rotation axis.
  • the outer connecting portion 83 is an arcuate portion that is convex outward in the disk radial direction.
  • the outer connecting portion 83 is a convex portion extending outward in the disk radial direction.
  • the outer connecting portion 83 is positioned closer to the inner side in the disk circumferential direction, and further to the outer side in the disk radial direction in the direction of the disk radial reference line.
  • the center position of the outer connecting portion 83 in the disk circumferential direction is located at the outermost side in the disk radial direction in the direction of the disk radial reference line.
  • the outer connecting portion 83 has one end in the circumferential direction extending to the inner end in the disk circumferential direction of the first inner surface portion 92 of the first proximal end extension portion 81, and the other end in the circumferential direction.
  • the second inner surface portion 96 of the second proximal extension portion 82 extends to the inner end in the disk circumferential direction.
  • a first end surface portion 101 on one end side in the circumferential direction and on the inner side in the disk radial direction is flat, and is flush with the first inner surface portion 92 of the first proximal end extension portion 81. arranged and continuous.
  • the outer side connecting portion 83 has a second end surface portion 102 on the other end side in the circumferential direction and on the inner side in the disk radial direction, which is flat and flush with the second inner surface portion 96 of the second proximal end extension portion 82 . arranged and continuous.
  • the first end surface portion 101 and the second end surface portion 102 are arranged on the same plane with alignment in the disk axial direction and the disk radial direction.
  • the outer connecting portion 83 has an outer connecting surface portion 105 on the outer side in the disk radial direction.
  • the outer connecting surface portion 105 connects the inner edge portion of the first outer surface portion 91 in the disk circumferential direction and the inner edge portion of the second outer surface portion 95 in the disk circumferential direction.
  • the outer connecting surface portion 105 has the shape of a portion of a cylindrical surface centered on the disk rotation axis.
  • the outer connecting surface portion 105 has an arcuate shape that bulges outward in the disk radial direction.
  • the outer connecting surface portion 105 is positioned closer to the inner side in the disk circumferential direction in the direction of the disk radial reference line.
  • the center position of the outer connecting surface portion 105 in the disk circumferential direction is located at the outermost point in the disk radial direction in the direction of the disk radial reference line.
  • the outer connecting portion 83 has an inner connecting surface portion 106 on the inner side in the disk radial direction.
  • the inner connecting surface portion 106 connects the inner edge portion of the first end surface portion 101 in the disk circumferential direction and the inner edge portion of the second end surface portion 102 in the disk circumferential direction.
  • the inner connecting surface portion 106 has the shape of a portion of a cylindrical surface centered on the disk rotation axis.
  • the inner connecting surface portion 106 is recessed inward in the disk radial direction in an arc shape.
  • the inner connecting surface portion 106 is positioned closer to the inner side in the disk circumferential direction in the direction of the disk radial reference line.
  • the center position of the inner connecting surface portion 106 in the disk circumferential direction is located at the outermost side in the disk radial direction in the direction of the disk radial reference line.
  • the outer side connecting portion 83 has an outer circumferential side surface portion 111 and an inner circumferential side surface portion 112 shown in FIG. 2, both of which have an arc shape when viewed in the disk axial direction, on the disk 10 side in the disk axial direction, that is, on the inner side. have.
  • the outer peripheral side surface portion 111 has the shape of a part of a conical surface centered on the disk rotation axis. In other words, the outer peripheral side surface portion 111 has a tapered surface shape centered on the disk rotation axis.
  • the outer peripheral side surface portion 111 extends inward in the disk radial direction from the inner end edge of the outer connecting surface portion 105 in the disk axial direction.
  • the outer circumferential side surface portion 111 is inclined so that the further inward in the disk radial direction, the closer to the inner side in the disk axial direction.
  • the outer circumferential side surface portion 111 has one end edge in the circumferential direction extending to the first end surface portion 101 shown in FIG. It extends to the end surface section 102 and is connected to the second end surface section 102 .
  • the inner peripheral side surface portion 112 shown in FIG. 2 has a planar shape perpendicular to the disk rotation axis.
  • the inner circumferential side surface portion 112 extends inward in the disk radial direction from the edge portion of the outer circumferential side surface portion 111 on the inner side in the disk radial direction.
  • One end edge in the circumferential direction of the inner peripheral side surface portion 112 extends to the first end surface portion 101 shown in FIG. 1 and is connected to the first end surface portion 101.
  • the other circumferential edge of the inner circumferential side surface 112 extends to the second end surface 102 and is connected to the second end surface 102 .
  • an edge portion 115 which is highlighted with a thick broken line in FIGS. 2 to 4, is formed at the boundary between the outer circumferential side surface portion 111 and the outer connecting surface portion 105.
  • the edge portion 115 has an arcuate shape centered on the disk rotation axis.
  • the edge portion 115 also has one end edge in the circumferential direction extending to the first end surface portion 101 and connected to the first end surface portion 101, and the other end edge in the circumferential direction extending to the first end surface portion 101. It extends to the second end surface portion 102 and is connected to the second end surface portion 102 .
  • the edge portion 115 is a continuous line formed by the intersection of the outer peripheral side surface portion 111 and the outer connecting surface portion 105 shown in FIG. 2 and the locus of the outer beam portion 32 as shown in FIG.
  • the outer connecting portion 83 has a portion that does not overlap with the first proximal extending portion 81 and the second proximal extending portion 82 in the circumferential direction, that is, in the circumferential direction of this portion, that is, in the extending direction of this portion.
  • the cross-sectional shape in the vertical direction is constant.
  • the inner end surface of the first proximal end extension portion 81 in the disk axial direction is located closer to the outer side in the disk axial direction than the outer peripheral side surface portion 111 shown in FIG. 2 .
  • the inner end surface of the second proximal end extension 82 shown in FIG. 1 in the disk axial direction is also disposed closer to the outer side in the disk axial direction than the outer peripheral side surface 111 shown in FIG. 2 .
  • the outer beam portion 32 has the outer side connecting portion 83, which is a convex portion in the disk radial direction, as shown in FIG.
  • the outer beam portion 32 has an outer connecting portion 83 that is an arc-shaped portion that is convex outward in the disk radial direction.
  • the outer beam portion 32 has a first proximal extending portion 81 and a second proximal extending portion 82, both of which are linear portions.
  • the entire outer beam portion 32 may be used as the outer side connecting portion 83.
  • the entire outer beam portion 32 has a constant cross-sectional shape in a direction perpendicular to the direction in which the outer beam portion 32 extends. That is, it is sufficient that at least a portion of the outer beam portion 32 has the outer connecting portion 83 . Further, it is sufficient that at least a portion of the outer beam portion 32 has a constant cross-sectional shape in a direction perpendicular to the direction in which the outer beam portion 32 extends.
  • the entire outer beam portion 32 may be made into a first base end extension portion 81 and a second base end extension portion 82, and these may be made continuous. That is, it is sufficient that at least a portion of the outer beam portion 32 has the first proximal extending portion 81 and the second proximal extending portion 82 .
  • first pad spring 21 and second pad spring 22 are common parts having the same shape. Therefore, the first pad spring 21 will be explained as an example.
  • the first pad spring 21 has a mirror-symmetrical shape.
  • the first pad spring 21 is formed by press molding from a single plate having a constant thickness.
  • the first pad spring 21 has a pair of pad support parts 141 and a pad support part 141, and a connection part 142 that connects the pair of pad support parts 141 and the pad support part 141.
  • the pair of pad support portions 141 and the pad support portions 141 have mirror-symmetrical shapes. Therefore, one pad support section 141 will be explained.
  • the pad support portion 141 includes an outer end plate portion 151, an outer support plate portion 152, an outer guide plate portion 153, a tip plate portion 154, an intermediate plate portion 155, a guide plate portion 156, and a base plate portion 157. , and has a biasing plate portion 158.
  • the outer end plate portion 151 is located closest to the connection portion 142 in the pad support portion 141 .
  • the outer end plate portion 151 has a flat plate shape.
  • the outer support plate portion 152 has a flat plate shape.
  • the outer support plate portion 152 extends perpendicularly to the outer end plate portion 151 from the edge portion of the outer end plate portion 151 on the side opposite to the connection portion 142 .
  • the outer guide plate portion 153 has a flat plate shape.
  • the outer guide plate part 153 of one pad support part 141 is connected from the edge of the outer support plate part 152 of one pad support part 141 on the opposite side from the other pad support part 141 to the other pad support part 141. 141 and extends to the opposite side.
  • the outer guide plate part 153 is inclined with respect to the outer support plate part 152 so that the more the extending end side is, the closer the outer guide plate part 153 is to the connecting part 142 side in the thickness direction of the outer support plate part 152.
  • the boundary line between the outer guide plate part 153 and the outer support plate part 152 has a linear shape perpendicular to the outer end plate part 151.
  • the tip plate portion 154 has a flat plate shape.
  • the tip plate portion 154 extends from the edge of the outer guide plate portion 153 on the side opposite to the outer support plate portion 152 toward the connecting portion 142 side in the thickness direction of the outer support plate portion 152.
  • the boundary line between the tip plate part 154 and the outer guide plate part 153 has a linear shape perpendicular to the outer end plate part 151.
  • the intermediate plate portion 155 has a flat plate shape.
  • the intermediate plate portion 155 extends perpendicularly to the outer support plate portion 152 from the edge portion of the outer support plate portion 152 on the opposite side to the outer end plate portion 151 in a direction away from the outer end plate portion 151 .
  • the intermediate plate portion 155 extends parallel to the outer end plate portion 151.
  • the guide plate portion 156 has a flat plate shape.
  • the guide plate portion 156 of one pad support portion 141 is connected to the other pad support portion 141 from the end edge of the intermediate plate portion 155 of this one pad support portion 141 on the opposite side to the other pad support portion 141. extends to the opposite side.
  • the guide plate part 156 is inclined with respect to the intermediate plate part 155 so that the more the extending end side is, the more the guide plate part 156 is located on the opposite side to the outer support plate part 152 in the thickness direction of the intermediate plate part 155.
  • the base plate portion 157 has a flat plate shape.
  • the base plate part 157 extends perpendicularly to the intermediate plate part 155 from the end of the intermediate plate part 155 on the opposite side to the outer support plate part 152 on the same side as the outer support plate part 152 .
  • the base plate portion 157 extends parallel to the outer support plate portion 152.
  • the outer support plate portion 152, the outer guide plate portion 153, the intermediate plate portion 155, the guide plate portion 156, and the base plate portion 157 constitute a fitting recessed portion 161 that is recessed from the outer end plate portion 151 as a whole. There is.
  • the biasing plate part 158 of one pad support part 141 is applied from the edge of the base plate part 157 of one pad support part 141 on the opposite side to the other pad support part 141 . While extending to the opposite side, it is folded back toward the outer support plate portion 152 side and is disposed on the outer support plate portion 152 side of the base plate portion 157 .
  • the biasing plate portion 158 has a folded portion 171 and an inner support plate portion 172.
  • the folded portion 171 of one pad support portion 141 extends from the end of the base plate portion 157 on the opposite side to the other pad support portion 141 toward the outer support plate portion 152 while being folded back in an arc shape.
  • the inner support plate portion 172 of one pad support portion 141 extends linearly from the extending end of the folded portion 171 of one pad support portion 141 toward the other pad support portion 141 .
  • the inner support plate portion 172 is inclined so that the end side of the extension from the folded portion 171 is further away from the base plate portion 157 in the thickness direction of the base plate portion 157.
  • connection portion 142 connects one pad support portion 141 described above and the other pad support portion 141 that is mirror-symmetrical thereto.
  • the connecting portion 142 includes a connecting plate portion 175 and a positioning portion 176.
  • connection plate portion 175 connects the pair of pad support portions 141 and the sides of the outer end plate portions 151 of the pad support portions 141 opposite to the outer support plate portions 152.
  • the positioning section 176 is provided between the pair of pad support sections 141 and the pad support section 141 .
  • the positioning portion 176 extends from the edge of the connection plate portion 175 on the outer end plate portion 151 side to the same side as the outer support plate portion 152 .
  • the first pad spring 21 is attached to the first bridge portion 33 on the first side of the carrier body 20 in the disk rotation direction.
  • the first pad spring 21 is arranged in the concave fitting concave shape of one pad support part 141 with the connecting part 142 disposed outside the pair of pad support parts 141 and the pad support part 141 in the disk radial direction.
  • portion 161 is fitted into the first outer side locking portion 55 of the first outer side extension portion 53
  • the concave fitting recessed portion 161 of the other pad support portion 141 is fitted into the first inner side extension portion 51. It is fitted into the first inner side locking part (not shown).
  • the first pad spring 21 fits the positioning part 176 between the first inner extension part 51 and the first outer extension part 53. In this way, the first pad spring 21 is positioned and attached to the carrier body 20.
  • the first pad spring 21 is configured so that the base plate portion 157 of the outer fitting recess 161 that fits into the first outer locking portion 55 is located inside the fitting recess 161 in the disk radial direction.
  • the first outer locking portion 55 is placed in contact with the first outer side inner wall surface 57 of the first outer side locking portion 55 .
  • the first pad spring 21 is configured such that the outer support plate portion 152 of the outer fitting recess 161 is disposed on the outer side of the fitting recess 161 in the disk radial direction and is locked to the first outer side. It abuts against the first outer side outer wall surface 58 of the portion 55 in surface contact.
  • the first pad spring 21 is configured such that the intermediate plate portion 155 of the outer fitting recess 161 is disposed on the outer side of the fitting recess 161 in the disk circumferential direction and is locked to the first outer side. It contacts the first outer side bottom surface 56 on the back side of the portion 55 in surface contact.
  • the first pad spring 21 is such that the base plate portion 157 of the inner side fitting recess 161 that fits into the first inner side locking portion (not shown) is connected to the disk of this fitting recess 161. It is arranged radially inward and comes into contact with a first inner side wall surface (not shown).
  • the first pad spring 21 is arranged such that the outer support plate portion 152 of the inner fitting recess 161 is disposed on the outer side of the fitting recess 161 in the disk radial direction, and Abuts against the outer side wall surface in surface contact.
  • the first pad spring 21 is arranged such that the intermediate plate portion 155 of the inner fitting recess 161 is disposed on the outer side of the fitting recess 161 in the disk circumferential direction, and Makes surface contact with the bottom surface of the side.
  • the first pad spring 21 is attached to the first inner side extension part 51 and the first outer side extension part 53 in this way, and the first pad spring 21 is attached to the first inner side locking part and the first outer side locking part (not shown).
  • a pair of fitting concave portions 161 that fit into the stop portions 55 have a shape that is concave outward in the disk circumferential direction.
  • the first pad spring 21 has a space between the outer support plate part 152 and the outer guide plate part 153 on the inside of the outer side fitting recessed part 161 and the biasing plate part 158 in the outer side first groove part 181. (Groove).
  • first pad spring 21 is arranged so that the space between the outer support plate part 152 and the outer guide plate part 153 on the inner side of the inner side fitting recessed part 161 and the biasing plate part 158 is the inner side (not shown). This becomes the first groove on the side.
  • the second pad spring 22 is attached to a second inner extension 61 and a second outer extension 63 of the carrier body 20, both of which are on the second side in the disk rotation direction.
  • the second pad spring 22 connects the concave fitting concave portion 161 of one pad support portion 141 to the second pad support portion 141 with the connecting portion 142 disposed on the outer side of the pair of pad support portions 141 in the disk radial direction.
  • the second outer side locking part 65 of the second outer side extension part 63 is fitted into the second outer side locking part 65, and the concave fitting recessed part 161 of the other pad support part 141 is fitted into the second outer side extension part 63 of the second inner side extension part 61. 2 Fit into the inner side locking part.
  • the second pad spring 22 fits the positioning part 176 between the second inner extension part 61 and the second outer extension part 63. In this way, the second pad spring 22 is positioned and attached to the carrier body 20.
  • the second pad spring 22 is configured so that the base plate portion 157 of the outer fitting recess 161 that fits into the second outer locking portion 65 is located inside the fitting recess 161 in the disk radial direction.
  • the second outer locking portion 65 is placed in contact with the second outer inner wall surface 67 of the second outer locking portion 65 .
  • the second pad spring 22 is configured such that the outer support plate portion 152 of the outer side fitting recess 161 is disposed on the outer side of the fitting recess 161 in the disk radial direction and is locked to the second outer side.
  • the second outer wall surface 68 of the portion 65 is brought into surface contact with the second outer side wall surface 68 of the portion 65 .
  • the second pad spring 22 is configured such that the intermediate plate portion 155 of the outer fitting recess 161 is disposed outside the fitting recess 161 in the disk circumferential direction and is locked to the second outer side.
  • the second outer side bottom surface 66 on the back side of the portion 65 is brought into surface contact.
  • the second pad spring 22 is such that the base plate portion 157 of the inner side fitting recess 161 that fits into the second inner side locking portion (not shown) is connected to the disk of this fitting recess 161. It is arranged radially inward and comes into contact with a second inner side wall surface (not shown).
  • the second pad spring 22 is arranged such that the outer support plate portion 152 of the inner fitting recess 161 is disposed on the outer side of the fitting recess 161 in the disk radial direction, and Abuts against the outer side wall surface in surface contact.
  • the second pad spring 22 is arranged such that the intermediate plate portion 155 of the inner fitting recess 161 is disposed on the outer side of the fitting recess 161 in the disk circumferential direction. Makes surface contact with the bottom surface of the side.
  • the second pad spring 22 is attached to the second inner side extension part 61 and the second outer side extension part 63 in this way, and the second pad spring 22 is attached to the second inner side locking part and the second outer side locking part (not shown).
  • a pair of fitting concave portions 161 that fit into the stop portions 65 have a shape that is concave outward in the disk circumferential direction.
  • the second pad spring 22 has a space between the outer support plate part 152 and the outer guide plate part 153 on the inside of the outer fitting recessed part 161 and the biasing plate part 158 in the outer second groove part 182. (Groove).
  • the second pad spring 22 is arranged so that the space between the outer support plate part 152 and the outer guide plate part 153 on the inner side of the inner side fitting recessed part 161 and the biasing plate part 158 is the inner side (not shown). This becomes the second groove on the side.
  • first pad springs 21 and second pad springs 22 are attached to the carrier body 20 to form the carrier 11.
  • the outer first groove portion 181 and the inner first groove portion are provided in the first bridge portion 33, which is one of the pair of first bridge portions 33 and second bridge portions 34.
  • the outer second groove portion 182 and the inner second groove portion are provided in the second bridge portion 34, which is the other of the pair of first bridge portions 33 and second bridge portions 34.
  • the outer friction pad 23 is supported by an outer first groove 181 and an outer second groove 182 recessed in opposite directions of the carrier 11 so as to be movable in the disk axial direction.
  • an inner friction pad 24 shown in FIG. 2 is provided in a first inner groove (not shown) and a second inner groove (not shown) which are recessed in opposite directions to each other in the carrier 11 so as to be movable in the disk axial direction. Supported.
  • the outer friction pad 23 includes a friction pad main body 201, a shim 202, and a spring 203.
  • the friction pad main body 201 has a substantially mirror-symmetrical shape.
  • the friction pad main body 201 includes a plate 211 and a friction material 212.
  • the plate 211 includes a flat substrate portion 221, a pair of first ears 222 (ears) and second ears 223 (ears), a first protrusion 224 shown in FIG. 3, and a first projection 224 shown in FIG. It has a second protrusion 225.
  • the pair of first ears 222 and second ears 223 shown in FIG. 7 have the same flat shape that is continuous with the base plate 221.
  • the pair of first ears 222 and second ears 223 protrude from both ends of the base plate 221 in the longitudinal direction of the plate 211 in opposite directions along this longitudinal direction.
  • the substrate portion 221 has a mirror-symmetrical shape.
  • the first ear portion 222 and the second ear portion 223 have mirror-symmetrical shapes.
  • the first projection 224 shown in FIG. 3 protrudes from the first ear 222 in the thickness direction of the first ear 222.
  • the second projection 225 shown in FIG. 8 protrudes from the second ear 223 in the thickness direction of the second ear 223.
  • the first projection 224 shown in FIG. 3 and the second projection 225 shown in FIG. 8 are located on the same side in the thickness direction from the first ear 222 shown in FIG. 3 and the second ear 223 shown in FIG. It stands out.
  • the direction connecting the first ear portion 222 and the second ear portion 223 is the longitudinal direction.
  • the thickness direction of the substrate portion 221, the first ear portion 222, and the second ear portion 223 is the thickness direction.
  • a direction perpendicular to the longitudinal direction and perpendicular to the thickness direction is defined as the height direction.
  • the friction material 212 is located on the opposite side of the plate 211 from the first protrusion 224 shown in FIG. 3 and the second protrusion 225 shown in FIG. 8 in the thickness direction of the outer friction pad 23. It is pasted on the pasting surface 231.
  • the adhesive surface 231 has a planar shape that extends perpendicularly to the thickness direction of the substrate portion 221 .
  • the adhesion surface 231 has a planar shape that is continuous with the substrate portion 221 and the pair of first and second ears 222 and 223 .
  • the plate 211 has a main surface portion 232 shown in FIG. 1 on the side opposite to the friction material 212 in the thickness direction of the outer friction pad 23.
  • the main surface portion 232 has a planar shape that extends perpendicularly to the thickness direction of the outer friction pad 23 .
  • the main surface portion 232 is formed in a planar shape that is continuous with the substrate portion 221 and the pair of first and second ear portions 222 and 223 .
  • the main surface portion 232 has a planar shape that extends parallel to the attachment surface 231 shown in FIG. 7 .
  • the first protrusion 224 shown in FIG. 3 and the second protrusion 225 shown in FIG. 8 protrude from the main surface 232 in a direction opposite to the attachment surface 231.
  • the substrate portion 221 has a pair of side surfaces 233 at both ends in the longitudinal direction of the outer friction pad 23. As shown in FIG. The pair of side surfaces 233 extend along the thickness direction of the outer friction pad 23 and also substantially extend along the height direction of the outer friction pad 23.
  • the base plate portion 221 has a bulging surface portion 235 and a chamfered portion 236 on one side in the height direction of the outer friction pad 23. Further, the base plate portion 221 has an engagement surface portion 257 on the side opposite to the bulged surface portion 235 in the height direction of the outer friction pad 23 .
  • the bulging surface portion 235 has a shape that bulges to one side in the height direction of the outer friction pad 23.
  • the bulging surface portion 235 has the shape of a part of a cylindrical surface.
  • the chamfered portion 236 connects the bulged surface portion 235 and the main surface portion 232.
  • the chamfered portion 236 forms an obtuse angle with respect to the bulging surface portion 235 and also forms an obtuse angle with respect to the main surface portion 232.
  • the base plate portion 221 is formed with an outer engagement recess 238 that is recessed from the bulging surface portion 235 toward the inner side surface portion 237 in the height direction of the outer friction pad 23.
  • the outer engagement recess 238 is arranged at the center of the base plate portion 221 in the longitudinal direction of the outer friction pad 23 .
  • a pair of inner engagement recesses 239 are formed in the base plate portion 221 .
  • the pair of inner engaging recesses 239 are recessed from the inner side surface portion 237 in the height direction of the outer friction pad 23 toward the bulging surface portion 235 .
  • the pair of inner engagement recesses 239 are spaced apart from each other in the longitudinal direction of the outer friction pad 23 .
  • the first ear portion 222 protrudes from one side surface portion 233 of the pair of side surface portions 233 of the base plate portion 221 in the longitudinal direction of the outer friction pad 23 .
  • the first ear portion 222 has a first end surface portion 241 , a first outer surface portion 242 , and a first inner surface portion 243 .
  • the first tip surface portion 241 is located at the end of the first ear portion 222 on the opposite side from the base plate portion 221.
  • the first end surface portion 241 has a planar shape that extends perpendicularly to the longitudinal direction of the outer friction pad 23 .
  • the first tip surface portion 241 has a planar shape along the thickness direction of the outer friction pad 23 and along the height direction of the outer friction pad 23.
  • the first outer surface portion 242 is located at the end of the first ear portion 222 on the bulging surface portion 235 side in the height direction of the outer friction pad 23.
  • the first outer surface portion 242 has a planar shape that extends perpendicularly to the height direction of the outer friction pad 23 .
  • the first outer surface portion 242 has a planar shape extending along the thickness direction of the outer friction pad 23 and along the longitudinal direction of the outer friction pad 23 .
  • the first inner surface portion 243 is located at the end of the first ear portion 222 on the inner surface portion 237 side in the height direction of the outer friction pad 23.
  • the first inner side surface portion 243 has a planar shape that extends perpendicularly to the height direction of the outer friction pad 23 .
  • the first inner surface portion 243 has a planar shape extending along the thickness direction of the outer friction pad 23 and along the longitudinal direction of the outer friction pad 23.
  • the first inner side surface 243 has a planar shape that extends parallel to the first outer side surface 242 .
  • the first inner side surface portion 243 also has a planar shape that extends perpendicularly to the first tip side surface portion 241 .
  • a first edge portion 245 is formed at the boundary between the first outer surface portion 242 and the adhesive surface 231.
  • the first edge portion 245 has a linear shape extending in the longitudinal direction of the outer friction pad 23 .
  • the second ear portion 223 protrudes from one of the pair of side portions 233 of the substrate portion 221 on the other side in the longitudinal direction of the outer friction pad 23 .
  • the second ear portion 223 has a second tip surface portion 251, a second outer surface portion 252, and a second inner surface portion 253.
  • the second tip surface portion 251 is located at the end of the second ear portion 223 on the opposite side from the base plate portion 221.
  • the second tip surface portion 251 has a planar shape that extends perpendicularly to the longitudinal direction of the outer friction pad 23 .
  • the second tip surface portion 251 has a planar shape along the thickness direction of the outer friction pad 23 and along the height direction of the outer friction pad 23.
  • the second distal end surface portion 251 has a planar shape that extends parallel to the first distal end surface portion 241 .
  • the second outer surface portion 252 is located at the end of the second ear portion 223 on the bulging surface portion 235 side in the height direction of the outer friction pad 23.
  • the second outer surface portion 252 has a planar shape that extends perpendicularly to the height direction of the outer friction pad 23 .
  • the second outer surface portion 252 has a planar shape extending along the thickness direction of the outer friction pad 23 and along the longitudinal direction of the outer friction pad 23.
  • the second outer surface portion 252 is disposed on the same plane as the first outer surface portion 242 .
  • the second inner surface portion 253 is located at the end of the second ear portion 223 on the inner surface portion 237 side in the height direction of the outer friction pad 23.
  • the second inner side surface portion 253 has a planar shape that extends perpendicularly to the height direction of the outer friction pad 23 .
  • the second inner side surface portion 253 has a planar shape extending along the thickness direction of the outer friction pad 23 and along the longitudinal direction of the outer friction pad 23 .
  • the second inner side surface 253 is disposed on the same plane as the first inner side surface 243 .
  • a second edge portion 255 is formed at the boundary between the second outer surface portion 252 and the adhesive surface 231.
  • the second edge portion 255 has a linear shape extending in the longitudinal direction of the outer friction pad 23 .
  • the second edge portion 255 is arranged on the same straight line as the first edge portion 245.
  • the shim 202 includes a shim body 261 and a cover shim 262.
  • the shim body 261 has a mirror-symmetrical shape.
  • the shim main body 261 has a main plate part 271 and an outer engaging plate part 272 shown in FIG. 2, and a pair of inner engaging plate parts 273 shown in FIG.
  • the main plate portion 271 shown in FIG. 2 has a flat plate shape.
  • the main plate portion 271 is arranged to cover the main surface portion 232 of the plate 211. At this time, the main plate portion 271 comes into surface contact with the main surface portion 232. In this state, the thickness direction of the main plate portion 271 coincides with the thickness direction of the outer friction pad 23.
  • the outer engagement plate portion 272 protrudes from the main plate portion 271 to one side along the thickness direction of the main plate portion 271.
  • the outer engagement plate portion 272 engages with the outer engagement recess 238 of the plate 211 .
  • the pair of inner engagement plate parts 273 protrude from the main plate part 271 along the thickness direction of the main plate part 271 on the same side as the outer engagement plate part 272 shown in FIG.
  • the pair of inner engagement plate parts 273 are located closer to the inner side surface part 237 shown in FIG. engage a part.
  • the outer engaging plate portion 272 shown in FIG. 2 engages with the outer engaging recess 238, and the pair of inner engaging plate portions 273 shown in FIG. It engages with the side surface portion 233. Thereby, the shim main body 261 is positioned and attached to the plate 211.
  • the cover shim 262 has a mirror-symmetrical shape. As shown in FIG. 2, the cover shim 262 includes a cover plate portion 281, an outer locking plate portion 282, and a pair of inner locking plate portions 283.
  • the cover plate portion 281 has a flat plate shape.
  • the cover plate portion 281 is arranged to cover the main plate portion 271 of the shim body 261 from the side opposite to the plate 211. At this time, the cover plate portion 281 comes into surface contact with the main plate portion 271 of the shim body 261. In this state, the thickness direction of the cover plate portion 281 coincides with the thickness direction of the outer friction pad 23.
  • the outer locking plate part 282 protrudes from the cover plate part 281 to one side along the thickness direction of the cover plate part 281.
  • the outer locking plate portion 282 covers the outer engagement plate portion 272 of the shim body 261 and engages with the outer engagement recess 238 of the plate 211 .
  • the pair of inner locking plate portions 283 protrude from the cover plate portion 281 along the thickness direction of the cover plate portion 281 on the same side as the outer locking plate portion 282 .
  • the pair of inner locking plate portions 283 engage with the pair of inner engaging recesses 239 of the inner side surface portion 237 of the base plate portion 221 shown in FIG.
  • the cover shim 262 is in a state where the shim body 261 is covered, the outer locking plate portion 282 engages with the outer engaging recess 238, and the pair of inner locking plate portions 283 By engaging with the pair of inner engaging recesses 239 of the inner side surface 237 shown in FIG. 7, it is positioned and attached to the plate 211.
  • the shim 202 consisting of the shim body 261 and the cover shim 262 is positioned and attached to the plate 211 of the friction pad body 201.
  • a body notch 291 is formed in the main plate portion 271 of the shim body 261.
  • the shim body 261 is positioned and attached to the friction pad body 201. Then, the main body notch 291 is recessed from the edge of the main plate 271 on the opposite side to the outer engaging plate 272 in the height direction of the outer friction pad 23 . There is.
  • the main body notch 291 is formed at the center of the shim main body 261 in the longitudinal direction of the outer friction pad 23 .
  • the main body notch 291 is formed between the pair of inner engaging plate portions 273 of the main plate portion 271 in the longitudinal direction of the outer friction pad 23 .
  • the main body notch portion 291 penetrates the main plate portion 271 in the thickness direction.
  • the main body notch 291 has a rear edge 292 and a pair of side edges 293.
  • the inner edge portion 292 is located at the end of the main body notch portion 291 on the outer engaging plate portion 272 side.
  • the inner edge portion 292 has a linear shape extending in the longitudinal direction of the outer friction pad 23 .
  • the pair of side edges 293 extend from both longitudinal ends of the outer friction pad 23 of the inner edge 292 to the side opposite to the outer engagement plate 272 .
  • a cover notch 301 is formed in the cover plate portion 281 of the cover shim 262.
  • the cover shim 262 is positioned and attached to the friction pad main body 201. Then, the cover notch 301 is recessed from the edge of the cover plate 281 on the opposite side to the outer locking plate 282 in the height direction of the outer friction pad 23 toward the outer locking plate 282. It is formed.
  • the cover notch 301 is formed at the center of the cover shim 262 in the longitudinal direction of the outer friction pad 23 .
  • the cover notch 301 is formed between the pair of inner locking plate parts 283 of the cover plate part 281 in the longitudinal direction of the outer friction pad 23 .
  • the cover cutout portion 301 penetrates the cover plate portion 281 in the thickness direction.
  • the cover notch 301 has a rear edge 302 and a pair of side edges 303.
  • the inner edge portion 302 is located at the end of the cover cutout portion 301 on the outer locking plate portion 282 side.
  • the inner edge portion 302 has a linear shape extending in the longitudinal direction of the outer friction pad 23 .
  • the pair of side edges 303 extend from both longitudinal ends of the outer friction pad 23 of the inner edge 302 to the side opposite to the outer locking plate 282 .
  • the main body notch 291 and the cover notch 301 have an overlapping shape. That is, the back edge 292 of the main body notch 291 and the back edge 302 of the cover notch 301 align the longitudinal position of the outer friction pad 23 and adjust the height direction of the outer friction pad 23. It's matching. Further, one side edge 293 of the pair of side edges 293 of the main body notch 291 and one side edge 303 of the pair of side edges 303 of the cover notch 301 are connected to the outer friction pad.
  • the positions of the outer friction pads 23 in the longitudinal direction are made to match, and the positions of the outer friction pads 23 in the height direction are made to match. Further, the other side edge 293 of the pair of side edges 293 of the main body notch 291 and the other side edge 303 of the pair of side edges 303 of the cover notch 301 are connected to the outer friction pad. The positions of the outer friction pads 23 in the longitudinal direction are made to match, and the positions of the outer friction pads 23 in the height direction are made to match.
  • the shim 202 has a notch 311.
  • the notch 311 is composed of the main body notch 291 and the cover notch 301, and is formed on one side of the shim 202 in the height direction of the outer friction pad 23.
  • the notch 311 penetrates the shim 202 in the thickness direction of the outer friction pad 23.
  • the main surface portion 232 of the plate 211 is exposed within the range of the cutout portion 311 of the shim 202.
  • the friction material 212 shown in FIG. 7 is attached to the attachment surface 231 of the plate 211.
  • the friction material 212 is provided within the range of the base plate portion 221 in both the longitudinal direction and the height direction of the outer friction pad 23 .
  • the friction material 212 has a contact surface 321 and a pair of inclined surfaces 322 on the side opposite to the plate 211 in the thickness direction of the outer friction pad 23.
  • the contact surface 321 is provided at an intermediate position of the friction material 212 in the longitudinal direction of the outer friction pad 23.
  • the contact surface 321 has a planar shape that extends perpendicularly to the thickness direction of the outer friction pad 23 . Friction material 212 contacts disk 10 at contact surface 321 .
  • the pair of inclined surfaces 322 are provided on both sides of the contact surface 321 in the longitudinal direction of the outer friction pad 23.
  • the pair of inclined surfaces 322 are provided at both ends of the friction material 212 in the longitudinal direction of the outer friction pad 23 .
  • the pair of inclined surfaces 322 have a planar shape along the height direction of the outer friction pad 23.
  • the pair of inclined surfaces 322 are inclined with respect to the contact surface 321 such that the further away from the contact surface 321 in the longitudinal direction of the outer friction pad 23 the closer to the adhesive surface 231 in the thickness direction of the outer friction pad 23. ing.
  • the friction material 212 has a pair of inner end surfaces 325 and a concave surface 326 on the inner surface 237 side in the height direction of the outer friction pad 23 .
  • the pair of inner end surfaces 325 have a planar shape that extends perpendicularly to the height direction of the outer friction pad 23. In other words, the pair of inner end surfaces 325 extend along the thickness direction of the outer friction pad 23 and along the longitudinal direction of the outer friction pad 23 . The pair of inner end surfaces 325 are arranged on the same plane.
  • the concave surface portion 326 is arranged between the pair of inner end surfaces 325 in the longitudinal direction of the outer friction pad 23.
  • the concave surface portion 326 is recessed from the pair of inner end surfaces 325 toward the bulged surface portion 235 in the height direction of the outer friction pad 23 .
  • the concave surface portion 326 has the shape of a portion of a cylindrical surface.
  • the friction material 212 has a pair of inner end surface portions 325 and a concave surface portion 326, and a contact surface 321, and has an edge portion 331 formed at a boundary position between these.
  • This edge portion 331 has a pair of end side edge forming portions 332 and an intermediate edge forming portion 333. Both ends of the edge portion 331 in the longitudinal direction of the outer friction pad 23 form a pair of end edge forming portions 332 . An intermediate edge component 333 is located between the pair of end edge components 332 in the longitudinal direction of the outer friction pad 23 .
  • the pair of end side edge forming portions 332 have a linear shape extending in the longitudinal direction of the outer side friction pad 23.
  • the pair of end edge components 332 are arranged on the same straight line.
  • the edge portion 331 is located at the end of the friction material 212 that is farthest from the plate 211 in the thickness direction of the outer friction pad 23 .
  • a pair of end-side edge forming portions 332 are located at the end closest to the inner side surface portion 237 of the friction material 212 in the height direction of the outer friction pad 23 .
  • the spring 203 is attached to the second protrusion 225 of the second lug 223 on the second side of the friction pad main body 201 in the disk rotation direction.
  • the second protrusion 225 is crimped with the spring 203 in contact with the main surface 232.
  • the spring 203 is fixed to the second ear portion 223.
  • the first protrusion 224 shown in FIG. 9 and the second protrusion 225 shown in FIG. It is in a state of
  • the spring 203 is attached to the second ear portion 223 and extends outward in the thickness direction of the outer friction pad 23 from the main surface portion 232 side, and then is folded back and extended in the longitudinal direction of the outer friction pad 23.
  • the second ear portion 223 extends toward the friction material 212 side through the side opposite to the base plate portion 221 .
  • the outer friction pad 23 has a friction material 212 disposed on the inner side of the plate 211.
  • the first ear part 222 of the outer friction pad 23 is fitted into the outer first groove part 181 of the carrier 11, as shown in FIG. 223 is fitted into the outer second groove portion 182 of the carrier 11 .
  • the outer friction pad 23 is supported by the carrier 11 so as to be slidable in the disk axial direction.
  • the spring 203 of the outer friction pad 23 comes into contact with the intermediate plate portion 155 that constitutes the second outer groove portion 182, and presses the outer friction pad 23 toward the first side in the disk rotation direction.
  • the first inner surface portion 243 of the first ear portion 222 of the outer friction pad 23 is connected to the biasing plate portion 158 that constitutes the outer first groove portion 181 of the first pad spring 21. comes into contact with.
  • the urging force of the urging plate portion 158 causes the first outer surface portion 242 of the first ear portion 222 to move toward the outer support plate portion 152 that constitutes the outer first groove portion 181 of the first pad spring 21. Make surface contact with the object.
  • the first end surface portion 241 of the first ear portion 222 shown in FIG. It abuts against the plate portion 155 in surface contact.
  • the inner friction pad 24 shown in FIG. 2 is a common part having the same shape as the friction pad main body 201 of the outer friction pad 23 before the spring 203 shown in FIG. 1 is attached.
  • the inner friction pad 24 shown in FIG. 2 has a spring 203 attached to the first protrusion 224 of the first ear 222 of the friction pad main body 201.
  • the inner friction pad 24 has a friction material 212 disposed on the outer side of the plate 211.
  • the first ear portion 222 is fitted into a second groove portion on the inner side (not shown) of the carrier 11, and the second ear portion 223 is fitted into a first groove portion on the inner side (not shown) of the carrier 11. .
  • the inner friction pad 24 is supported by the carrier 11 so as to be slidable in the disk axial direction.
  • the inner friction pad 24 is urged toward the first side in the disk rotation direction by the spring 203.
  • the caliper 12 includes a caliper body 351 shown in FIG. 1, and a pair of first slide pins (not shown) and second slide pins (not shown).
  • a first slide pin (not shown) is attached to the end of the caliper body 351 on the first side in the disk rotation direction.
  • a second slide pin (not shown) is attached to the end of the caliper body 351 on the second side in the disk rotation direction.
  • the caliper 12 has a substantially mirror-symmetrical shape.
  • the disc radial reference line and the disc radial reference plane pass through the center position of the caliper 12 in the disc circumferential direction.
  • a first slide pin (not shown) and a second slide pin (not shown) are aligned in the axial direction with each other and are arranged in parallel, and are fixed to the caliper body 351.
  • a first slide pin (not shown) is slidably fitted into a first caliper support hole (not shown) formed in the first bridge portion 33 of the carrier body 20.
  • a first slide pin (not shown) of the caliper 12 is movably stored in the first bridge portion 33 .
  • the axial direction of movement of the first slide pin (not shown) is the axial direction of the first caliper support hole (not shown), and coincides with the axial direction of the disk.
  • a second slide pin (not shown) is slidably fitted into a second caliper support hole (not shown) formed in the second bridge portion 34 of the carrier body 20.
  • a second slide pin (not shown) of the caliper 12 is movably stored in the second bridge portion 34 .
  • the movement axis direction of the second slide pin (not shown) is the axial direction of the second caliper support hole (not shown), and coincides with the disk axial direction.
  • the caliper body 351 of the caliper 12 is attached to the first bridge portion 33 and the second bridge portion 34 of the carrier 11 in the disk axial direction via the first slide pin (not shown) and the second slide pin (not shown). Slidably supported.
  • the caliper body 351 has a substantially mirror-symmetrical shape.
  • the disc radial reference line and the disc radial reference plane pass through the center position of the caliper body 351 in the disc circumferential direction.
  • the caliper body 351 includes a cylinder portion 361, an extension portion 362, and a claw portion 363 shown in FIG. 2, and a first pin attachment portion 364 and a second pin attachment portion 365 shown in FIG.
  • the cylinder portion 361 is arranged on the inner side of the disk 10 in the disk axial direction.
  • the cylinder portion 361 has a cylindrical shape with a bottom and is open toward the outer side in the disk axial direction.
  • the extending portion 362 extends from the outer portion of the cylinder portion 361 in the disk radial direction toward the outer side along the disk axial direction.
  • the extending portion 362 crosses the outer periphery of the disk 10 in the disk axial direction on the outer side in the disk radial direction.
  • the first pin attachment portion 364 and the second pin attachment portion 365 shown in FIG. 1 are arranged on the inner side of the disk 10 in the disk axial direction.
  • the first pin attachment portion 364 extends from the cylinder portion 361 shown in FIG. 2 to the first side in the disk rotation direction.
  • a first slide pin (not shown) is fixed to the first pin attachment portion 364.
  • a first slide pin (not shown) extends from the first pin attachment portion 364 toward the outer side along the disk axial direction.
  • the second pin attachment portion 365 shown in FIG. 1 extends from the cylinder portion 361 shown in FIG. 2 to the second side in the disk rotation direction.
  • a second slide pin (not shown) is fixed to the second pin attachment portion 365.
  • a second slide pin (not shown) extends from the second pin attachment portion 365 toward the outer side along the disk axial direction.
  • the claw portion 363 extends inward in the disk radial direction from the outer end of the extension portion 362 in the disk axial direction and is disposed on the outer side of the disk 10.
  • a piston 371 that constitutes the caliper 12 is housed in the cylinder portion 361 of the caliper body 351 .
  • the piston 371 is housed in the cylinder portion 361 so as to be movable in the disk axial direction.
  • the piston 371 faces the inner surface of the disk 10.
  • An inner friction pad 24 is disposed between the inner surface of the disk 10 and the piston 371. When the piston 371 moves toward the disk 10 along the disk axis direction, it comes into contact with the inner friction pad 24 and presses it into contact with the disk 10 .
  • the outer friction pad 23 is arranged between the outer surface of the disk 10 and the claw portion 363.
  • the outer beam portion 32 of the carrier 11 is provided at a position facing the outer friction pad 23 in the disk axial direction.
  • the outer beam portion 32 faces the outer friction pad 23 in the disk axial direction, overlapping the disk radial direction and the disk circumferential direction.
  • the outer friction pad 23 includes a plate 211, a friction material 212 provided between the plate 211 and the disk 10, and a shim 202 provided on a main surface portion 232 of the plate 211 on the opposite side of the friction material 212. are doing.
  • the shim 202 In the shim 202, the main plate portion 271 of the shim body 261 and the cover plate portion 281 of the cover shim 262 are arranged between the plate 211 of the outer friction pad 23 and the outer beam portion 32 of the carrier 11. As shown in FIG. 1, the shim 202 has a notch 311 formed inside the shim 202 in the disk radial direction. The cutout portion 311 faces the outer connecting portion 83 of the outer beam portion 32 in the disk axial direction, overlapping in the disk radial direction and also in the disk circumferential direction. At this time, the shim 202 and the outer beam portion 32 are provided at a predetermined distance apart.
  • the outer side connection portion 83 of the outer beam portion 32 overlaps the main surface portion 232 of the plate 211 exposed in the cutout portion 311 in the disk radial direction, and also overlaps the disk circumferential direction, so that opposite direction.
  • a portion of the shim 202 is provided along the shape of the outer beam portion 32.
  • the inner edge portions 292 and 302 shown in FIGS. 8 and 9, which are part of the shim 202, are provided along the shape of the outer connecting surface portion 105 of the outer beam portion 32.
  • the longitudinal direction of the shim 202 coincides with the longitudinal direction of the outer beam portion 32.
  • the outer connecting portion 83 of the outer beam portion 32 has a shape that bulges outward in the disk radial direction toward the longitudinal center of the outer friction pad 23 .
  • brake fluid is introduced into the cylinder portion 361 of the caliper 12 shown in FIG. 2 via a brake pipe (not shown). Then, brake fluid pressure acts on the piston 371 in the cylinder portion 361. As a result, the piston 371 moves forward toward the disk 10, contacts the inner friction pad 24 disposed between the piston 371 and the disk 10, and presses it toward the disk 10. Then, the inner friction pad 24 on the inner side moves in the disk axial direction while being guided by the inner first groove (not shown) and the inner second groove (not shown) of the carrier 11 , and the friction pad 24 moves in the disk axial direction. Contact the inner surface.
  • the caliper body 351 slides a first slide pin (not shown) and a second slide pin (not shown) relative to the carrier 11 and moves in the disk axial direction. Then, the claw portion 363 comes into contact with the cover shim 262 of the shim 202 of the outer friction pad 23 disposed between the claw portion 363 and the disk 10, and presses the outer friction pad 23 toward the disk 10. . Then, the outer friction pad 23 on the outer side moves in the disk axial direction while being guided by the first outer groove 181 and the second outer groove 182, and contacts the outer side of the disk 10 at the contact surface 321 of the friction material 212. touch the surface.
  • the caliper 12 slidably supported by the carrier 11 moves the pair of inner friction pads 24 and outer friction pads 23 in the disk axial direction using the piston 371 and the claw portion 363 due to the operation of the piston 371. Hold it from both sides.
  • the caliper 12 presses the pair of inner friction pads 24 and outer friction pads 23 toward the disk 10 in the disk axial direction.
  • the caliper 12 presses the inner friction pad 24 and the outer friction pad 23 against both sides of the disk 10.
  • the inner friction pad 24 and the outer friction pad 23 apply frictional resistance to the disk 10, providing braking force to the vehicle.
  • the caliper 12 supported by the carrier 11 presses the inner friction pad 24 and the outer friction pad 23, which are also supported by the carrier 11, against the disc 10 to generate braking force.
  • the caliper 12 is a so-called fist-type (slide-type) caliper.
  • the carrier 11 thus movably supports the caliper 12 that applies braking force to the vehicle.
  • the plate 211 of the outer friction pad 23 is pressed toward the disk 10 by the thrust of the piston 371, and the outer friction pad 23 moves.
  • the carrier 11 movably supports the plate 211 of the outer friction pad 23 that moves in this manner.
  • the carrier 11 When assembling the disc brake 1 to a knuckle (not shown), first, the carrier 11 in a state before the caliper 12, inner friction pad 24, and outer friction pad 23 are assembled is attached to the knuckle (not shown). That is, the carrier 11 is arranged so that the outer beam part 32 is located on the outer side and the fixed part 31 is located on the inner side with respect to the disc 10, and the first bridge part 33 and the second bridge part 34 are arranged to straddle the disc 10. The first attachment portion 41 and the second attachment portion 42 are attached to a knuckle (not shown).
  • the outer friction pad 23 is moved from the outside in the disk radial direction to the inside and inserted between the outer beam portion 32 of the carrier 11 and the disk 10, as shown in FIGS. 8 to 10.
  • the outer friction pad 23 is oriented such that the friction material 212 is located on the disk 10 side in the disk axial direction, and the shim 202 is located on the outer beam portion 32 side in the disk axial direction.
  • the outer friction pad 23 has a first lug 222 located at the end on the first side in the disk rotation direction as shown in FIG. It is oriented to be located at the end on the second side in the direction.
  • the outer friction pad 23 has a portion on the outer side in the disk radial direction that is smaller than a portion on the inner side in the disk radial direction. It is inserted obliquely with respect to the disk radial direction so as to be separated from the disk 10 in the disk axial direction.
  • the first edge portion 245 of the outer friction pad 23 is connected to the outer supporting plate of the outer first groove portion 181 by touching the first edge portion 245 of the outer friction pad 23 with the contact portion 381 provided as shown in FIG. 10.
  • a first contact portion 382 (contact portion) is provided in contact with the portion 152 .
  • the second edge portion 255 of the outer friction pad 23 is brought into contact with the outer support plate portion 152 of the outer second groove portion 182 at least at one point, and the second contact portion is the contact portion between these parts.
  • 383 contact part
  • Both the first contact portion 382 and the second contact portion 383 may be provided. That is, at least one of the first contact portion 382 and the second contact portion 383 is provided.
  • the cutout portion 311 of the shim 202 is formed at a position where the outer beam portion 32 and the outer friction pad 23 contact each other in this state, so that the shim 202 and the outer beam portion 32 do not contact each other. That is, depending on the angle with respect to the disk 10, the outer friction pad 23 may be attached to the outer beam portion 32 with at least one of the first contact portion 382 and the second contact portion 383 and the contact portion 381 provided thereon. It will come into contact with you. At that time, as shown in FIG. 10, the main surface portion 232 of the plate 211 contacts the outer beam portion 32, but the shim 202 does not contact the outer beam portion 32.
  • a notch 311 is formed in the shim 202 in a range that avoids interference between the shim 202 and the outer beam portion 32 when the outer friction pad 23 is assembled to the carrier 11 in this manner.
  • the edge portion 331 of the friction material 212 of the outer friction pad 23 is pressed against the disk 10 in a state where the outer friction pad 23 is inclined at a predetermined angle with respect to the disk radial direction. It is located at the end of the contact surface 321 on the central axis side of the disk 10. In this state, only at least one point of the edge portion 331 and the disk 10 are brought into contact with each other, thereby providing a contact portion 381 (first contact portion) in which only these are brought into contact.
  • the outer friction pad 23 and the outer first groove portion 181 are brought into contact at at least one point to provide a first contact portion 382 where they come into contact.
  • the outer friction pad 23 and the outer second groove portion 182 are brought into contact at at least one point to provide a second contact portion 383 where these contact. At least one of the first contact portion 382 and the second contact portion 383 is provided.
  • the edge portion 115 of the outer beam portion 32 and the outer A second contact portion 384 is provided in which the side friction pads 23 and the side friction pads 23 contact each other at least at one point. That is, at least one of the first contact portion 382 and the second contact portion 383, the contact portion 381, and the second contact portion 384 are provided, and the outer friction pad 23 is restrained. If this condition is met, the notch 311 is provided in the shim 202 so that the second contact portion 384 does not come into contact with the shim 202 but comes into contact with the main surface portion 232 of the plate 211. In other words, if this condition is met, the notch 301 is provided at the location where the outer beam portion 32 and the outer friction pad 23 come into contact.
  • At least one of the first contact portion 382 and the second contact portion 383, the contact portion 381, and the second contact portion 384 are provided to restrain the outer friction pad 23.
  • the outer friction pad 23 restrained at an angle ⁇ Take the displacement (x). This displacement (x) becomes 0 at the position of the disk radial reference plane.
  • the partial derivative (F(x)) of the second contact portion 384 in the disk radial direction in the disk axial direction is At any x position, the notch 311 of the shim 202>F(x) A notch 311 is provided in the shim 202 according to the displacement (x) so that.
  • the shim 202 in the state where the shim 202 does not have the notch 311, for example, the first contact portion 382, the second contact portion 383, and the contact portion 381 are provided, and as shown in FIG. It is assumed that the outer peripheral side surface portion 111 including the edge portion 115 of 32 is brought into contact with each other. As shown by hatching in FIG. 13, the shim 202 is provided with a notch 311 extending from the edge of the outer peripheral side surface 111 of the outer beam section 32 on the outer connecting surface section 105 side to a position greater than a distance of t ⁇ sin ⁇ . Then, as shown in FIG. 14, the outer beam portion 32 can come into contact with the main surface portion 232 of the plate 211 without interference between the shim 202 and the outer beam portion 32.
  • the outer beam portion 32 Since the shape of the outer beam portion 32 differs depending on the position of the displacement (x) shown in FIG. In addition, by providing the cutout portion 311 in the shim 202 according to the displacement (x), the outer beam portion 32 can come into contact with the main surface portion 232 of the plate 211 without interfering with the shim 202.
  • the first edge portion 245 is connected to the outer support plate portion of the first groove portion 181 on the outer side as shown in FIG. 152, the first ear portion 222 is pushed into the outer first groove portion 181 and fitted.
  • the second edge portion 255 shown in FIG. 8 is brought into contact with the outer support plate portion 152 of the outer second groove portion 182, and the second ear portion 223 is pushed into the outer second groove portion 182 and fitted.
  • the outer friction pad 23 is assembled to the carrier 11.
  • the outer friction pad 23 assembled to the carrier 11 in this manner is in a state in which the friction material 212 is disposed on the inner side with respect to the plate 211, as shown in FIG. At this time, the friction material 212 faces the disk 10.
  • the spring 203 shown in FIG. 4 contacts the intermediate plate portion 155 of the outer second groove portion 182 of the second pad spring 22.
  • the first ear portion 222 shown in FIG. 3 contacts the urging plate portion 158 forming the outer first groove portion 181 at the first inner surface portion 243 thereof.
  • the first ear portion 222 is moved by the urging force of the urging plate portion 158 to the outer support plate portion 152 that forms the outer side first groove portion 181 in the first outer surface portion 242. Make surface contact with the object.
  • the first ear portion 222 comes into surface contact with the intermediate plate portion 155 constituting the outer first groove portion 181 on the first end surface portion 241 due to the urging force of the spring 203. come into contact with
  • the second ear portion 223 is moved by the urging force of the urging plate portion 158 to the outer support plate portion 152 that forms the outer side second groove portion 182 in the second outer side surface portion 252. Abuts with surface contact. Further, in the outer friction pad 23 in this state, the second ear portion 223 faces the intermediate plate portion 155 forming the outer second groove portion 182 in the second tip end surface portion 251 with a slight gap.
  • Patent Document 1 mentioned above describes a technology in which a shim is provided between the back plate of the friction pad and a member that presses the friction pad in order to stabilize the behavior of the friction pad during braking and suppress the occurrence of brake squeal. is disclosed.
  • a through hole or a notch is provided in the shim to reduce the pressing force on the friction pad.
  • the pressing force acting on both ends of the friction pad in the circumferential direction of the disk is increased relative to the center portion, thereby improving the behavioral stability of the center portion of the friction pad and suppressing brake squeal.
  • the shim 202 is provided with a notch so as to avoid interference with the outer beam portion 32 when the outer friction pad 23 is assembled to the carrier 11. 311 is provided.
  • the notch 311 prevents the shim 202 from interfering with the outer beam portion 32. Therefore, when assembling the outer friction pad 23 to the carrier 11, the disc brake 1 can be assembled while easily avoiding damage to the shim 202. Therefore, the disc brake 1 can suppress a decrease in the ease of assembling the outer friction pad 23 to the carrier 11.
  • the disc brake 1 has an outer side connection part 83 in which at least a part of the outer beam part 32 is a convex part in the disc radial direction. Therefore, the disc brake 1 has a structure in which the outer friction pad 23 is more likely to interfere with the outer beam portion 32 when assembled to the carrier 11. For this reason, the disc brake 1 is highly effective in suppressing deterioration in the ease of assembling the outer friction pad 23 to the carrier 11 due to the provision of the notch 311.
  • the disc brake 1 of the first embodiment at least a portion of the outer beam portion 32 has an outer side connecting portion 83 that is an arcuate portion that is convex outward in the disk radial direction. Therefore, the disc brake 1 has a structure in which the outer friction pad 23 is more likely to interfere with the outer beam portion 32 when assembled to the carrier 11. For this reason, the disc brake 1 is highly effective in suppressing deterioration in the ease of assembling the outer friction pad 23 to the carrier 11 due to the provision of the notch 311.
  • the disc brake 1 of the first embodiment has a first base end extension part 81 and a second base end extension part 82, which are straight parts in which at least a part of the outer beam part 32 has a straight shape. . Therefore, it is possible to reduce the weight of the outer beam portion 32 and, in turn, the weight of the carrier 11.
  • the outer connecting portion 83 which is an arc-shaped portion, has a shape that swells toward the center of the outer friction pad 23 in the longitudinal direction. Therefore, the disc brake 1 has a structure in which the outer friction pad 23 is more likely to interfere with the outer beam portion 32 when assembled to the carrier 11. For this reason, the disc brake 1 is highly effective in suppressing deterioration in the ease of assembling the outer friction pad 23 to the carrier 11 due to the provision of the notch 311.
  • the outer side connecting portion 83 which is at least a part of the outer beam portion 32, has a constant cross-sectional shape in a direction perpendicular to the extending direction of the outer beam portion 32. Therefore, the disc brake 1 can increase the strength of the outer beam portion 32.
  • the disc brake 1 of the first embodiment a part of the shim 202 is provided along the shape of the outer beam portion 32. Therefore, in the disc brake 1, the shim 202 tends to interfere with the outer beam portion 32. For this reason, the disc brake 1 is highly effective in suppressing deterioration in the ease of assembling the outer friction pad 23 to the carrier 11 due to the provision of the notch 311 in the shim 202.
  • the shim 202 and the outer beam portion 32 are provided at a predetermined distance apart. Therefore, the disc brake 1 can further suppress deterioration in the ease of assembling the outer friction pad 23 to the carrier 11.
  • an outer friction pad 23A (friction pad) that is partially different from the outer friction pad 23 of the first embodiment is an outer friction pad. It is provided instead of 23.
  • the outer friction pad 23A has a friction pad main body 201 similar to the outer friction pad 23. Also in the outer friction pad 23A, the direction connecting the first ear portion 222 and the second ear portion 223 is the longitudinal direction. Also, in the outer friction pad 23A, the thickness direction of the substrate portion 221, the first ear portion 222, and the second ear portion 223 is the thickness direction. Also, in the outer friction pad 23A, the height direction is a direction perpendicular to the longitudinal direction and perpendicular to the thickness direction.
  • the outer friction pad 23A has a first shim 261A and a second shim 262A (shims), which are different from the shim 202, instead of the shim 202.
  • the first shim 261A has a mirror-symmetrical shape, and has a flat plate shape as a whole.
  • the second shim 262A has a mirror-symmetric shape. It has a second shim 262A, a main plate portion 281A, an outer locking plate portion 282A, and a pair of inner locking plate portions 283A.
  • the main plate portion 281A has a flat plate shape.
  • the main plate portion 281A is arranged to cover the first shim 261A, and abuts the first shim 261A in surface contact.
  • the first shim 261A is integrated with the main plate portion 281A by adhesive or the like while being positioned relative to the second shim 262A.
  • the first shim 261A is arranged to cover the main surface portion 232 of the plate 211. At this time, the first shim 261A comes into surface contact with the main surface portion 232. In this state, the thickness direction of the first shim 261A matches the thickness direction of the outer friction pad 23A.
  • the second shim 262A is arranged such that the main plate portion 281A covers the first shim 261A from the side opposite to the plate 211. In this state, the thickness direction of the main plate portion 281A coincides with the thickness direction of the outer friction pad 23.
  • the outer locking plate portion 282A protrudes from the main plate portion 281A toward the first shim 261A along the thickness direction of the main plate portion 281A.
  • the outer locking plate portion 282A engages with the outer engagement recess 238 of the plate 211.
  • the pair of inner locking plate portions 283A protrude from the main plate portion 281A along the thickness direction of the main plate portion 281A on the same side as the outer locking plate portion 282A.
  • the pair of inner locking plate portions 283A engage with portions of the pair of side surfaces 233 of the base plate portion 221 that are closer to the inner side surface portion 237 than the pair of first ears 222 and second ears 223.
  • the outer locking plate portion 282A of the second shim 262A engages with the outer engaging recess 238, and the pair of inner locking plate portions 283A of the second shim 262A engage with the outer engaging recess 238. is engaged with a portion of the pair of side surfaces 233 of the plate 211 that is closer to the inner side surface 237 than the pair of first ears 222 and second ears 223 . Thereby, the integrated first shim 261A and second shim 262A are positioned and attached to the plate 211.
  • a notch 301A is formed in the main plate portion 281A of the second shim 262A.
  • the second shim 262A is positioned and attached to the plate 211 of the friction pad main body 201 together with the first shim 261A.
  • the notch 301A is recessed from the edge of the main plate 281A on the opposite side to the outer locking plate 282A toward the outer locking plate 282A in the height direction of the outer friction pad 23A. ing.
  • the cutout portion 301A penetrates through the outer friction pad 23A in the height direction on the side opposite to the outer locking plate portion 282A.
  • the cutout portion 301A is formed between the pair of inner locking plate portions 283A and 283A of the main plate portion 281A in the longitudinal direction of the outer friction pad 23A.
  • the notch 301A is formed at the center of the second shim 262A in the longitudinal direction of the outer friction pad 23A.
  • the cutout portion 301A penetrates the main plate portion 281A in the thickness direction.
  • the notch 301A has a rear edge 302A and a pair of side edges 303A.
  • the inner edge portion 302A is located at the end of the notch portion 301A on the outer locking plate portion 282A side.
  • the inner edge portion 302A has a linear shape extending in the longitudinal direction of the outer friction pad 23A.
  • the pair of side edge portions 303A extend from both ends in the longitudinal direction of the outer friction pad 23A of the inner edge portion 302A to the side opposite to the outer locking plate portion 282A.
  • the notch 301A is located on the outer side. It is formed on one side of the second shim 262A in the height direction of the friction pad 23A. As shown in FIG. 17, the first shim 261A is exposed within the notch 301A. As shown in FIGS. 17 and 18, the cutout portion 301A is formed in the inner portion of the first shim 261A in the disk radial direction when the outer friction pad 23A is assembled to the carrier 11.
  • the outer friction pad 23A is also arranged on the carrier 11 in the same manner as the outer friction pad 23. Thereby, the outer friction pad 23A is supported by the carrier 11 so as to be slidable in the disk axial direction. Then, the outer beam portion 32 of the carrier 11 is provided at a position facing the outer friction pad 23A in the disk axial direction. The outer beam portion 32 faces the outer friction pad 23A in the disk axial direction, overlapping the disk radial direction and also overlapping the disk circumferential direction.
  • the outer friction pad 23A includes a plate 211, a friction material 212 provided between the plate 211 and the disk 10, and a first shim 261A and a first shim 261A provided on the main surface portion 232 of the plate 211 on the opposite side of the friction material 212.
  • 2 shims 262A The main plate portion 281A of the second shim 262A and the first shim 261A are arranged between the plate 211 of the outer friction pad 23A and the outer beam portion 32 of the carrier 11.
  • a notch 301A is formed on the inside of the second shim 262A in the disk radial direction.
  • the cutout portion 301A faces the outer connecting portion 83 of the outer beam portion 32 in the disk axial direction, overlapping in the disk radial direction and also in the disk circumferential direction.
  • the second shim 262A and the outer beam portion 32 are provided at a predetermined distance apart.
  • the outer connecting portion 83 of the outer beam portion 32 overlaps the first shim 261A exposed in the cutout portion 301A in the disk radial direction, overlaps the disk circumferential direction, and extends in the disk axial direction. opposite.
  • a portion of the second shim 262A is provided along the shape of the outer beam portion 32.
  • the longitudinal direction of the second shim 262A coincides with the longitudinal direction of the outer beam portion 32.
  • the outer connecting portion 83 of the outer beam portion 32 has a shape that bulges outward in the disk radial direction toward the longitudinal center of the outer friction pad 23A.
  • the carrier 11 is attached to the knuckle (not shown) in the same way as the disc brake 1.
  • the outer friction pad 23A is inserted between the outer beam portion 32 of the carrier 11 and the disk 10 in the same manner as the outer friction pad 23.
  • at least one point of the edge portion 331 located at the axial end of the disk 10 on the disk 10 side contact surface 321 of the friction material 212 of the outer friction pad 23A, and the disk 10 are brought into contact with each other to provide these contact portions 381.
  • the first edge portion 245 of the outer friction pad 23A is brought into contact with the outer support plate portion 152 of the outer first groove portion 181 at at least one point.
  • a first contact portion 382, which is a contact portion between these parts, is provided.
  • the second edge portion 255 of the outer friction pad 23A is brought into contact with the outer support plate portion 152 of the outer second groove portion 182 at at least one point, and the second contact portion is a contact portion between these parts.
  • a section 383 is provided. At least one of the first contact portion 382 and the second contact portion 383 is provided.
  • the cutout portion 301A of the second shim 262A is formed at a position where the outer beam portion 32 and the outer friction pad 23A contact each other in this state, so that the second shim 262A and the outer beam portion 32 do not contact each other. That is, depending on the angle with respect to the disk 10, the outer friction pad 23A may have at least one of the first contact portion 382 and the second contact portion 383, and the contact portion 381, as shown in FIG. , will come into contact with the outer beam portion 32. At that time, the first shim 261A contacts the outer beam portion 32, but the second shim 262A does not contact the outer beam portion 32.
  • a notch 301A is formed in the second shim 262A in a range to avoid interference between the second shim 262A and the outer beam portion 32 when the outer friction pad 23A is assembled to the carrier 11 in this way.
  • the setting of the notch 301A will be explained.
  • the setting of the notch 301A is almost the same as the setting of the notch 301.
  • the edge portion 331 of the friction material 212 of the outer friction pad 23A is pressed against the disk 10 with the outer friction pad 23A inclined at a predetermined angle with respect to the disk radial direction. It is located at the end of the contact surface 321 on the central axis side of the disk 10. In this state, only at least one point of the edge portion 331 and the disk 10 are brought into contact with each other, thereby providing a contact portion 381 (first contact portion) in which only these contact.
  • the outer friction pad 23A and the outer first groove portion 181 are brought into contact at at least one point, and a first contact portion 382 is provided where these contact. .
  • the outer friction pad 23A and the outer second groove portion 182 are brought into contact at at least one point to provide a second contact portion 383 where these contact. At least one of the first contact portion 382 and the second contact portion 383 is provided.
  • the edge portion 115 of the outer beam portion 32 and the outer side friction pad 23A are further provided.
  • a second abutting portion 384 is provided where these abut at least one point. That is, at least one of the first contact portion 382 and the second contact portion 383, the contact portion 381, and the second contact portion 384 are provided, and the outer friction pad 23A is restrained. If this condition is met, the second shim 262A is provided with the notch 301A so that the second contact portion 384 does not contact the second shim 262A but contacts the first shim 261A. In other words, if this condition is met, the cutout 301A is provided at the location where the outer beam portion 32 and the outer friction pad 23A abut.
  • At least one of the first contact portion 382 and the second contact portion 383, the contact portion 381, and the second contact portion 384 are provided to restrain the outer friction pad 23.
  • the angle ( ⁇ ) formed by the thickness direction of the plate 211 and the axial direction of the disk 10 with the second contact portion 384 as the intersection is defined as the thickness (t) of the shim 202, and the outer friction pad 23
  • the displacement (x) of the outer beam portion 32 in the radial direction of the disk is taken from the center axis of the disk 10 with the center axis of the disk 10 as a reference.
  • the partial derivative (F(x)) of the second contact portion 384 in the disk radial direction in the disk axial direction is A notch 301A is provided in the second shim 262A according to the displacement (x) so that the notch 311 of the shim 202>F(x).
  • the outer beam portion 32 can contact the first shim 261A without interfering with the second shim 262A.
  • the second shim 262A is provided with a notch 301A to avoid interference with the outer beam portion 32 when the outer friction pad 23A is assembled to the carrier 11. ing.
  • the notch portion 301A prevents the second shim 262A from interfering with the outer beam portion 32. Therefore, when assembling the outer friction pad 23A to the carrier 11, the disc brake 1A can be assembled while easily avoiding damage to the second shim 262A. Therefore, the disc brake 1A can suppress a decrease in the ease of assembling the outer friction pad 23A to the carrier 11.
  • the disc brake 1A of the second embodiment can produce other effects similar to those of the disc brake 1 of the first embodiment.
  • first and second embodiments the case where the outer side first groove part 181 and the outer side second groove part 182 are formed in the first pad spring 21 and the second pad spring 22 has been described as an example.
  • the first outer locking portion 55 and the second outer locking portion 65 of the carrier body 20 may be grooves without providing the first pad spring 21 and the second pad spring 22.
  • the outer friction pads 23, 23A have been described as having a pair of first ears 222 and a second ear 223, but a pair of first ears 222 and a second ear 223 have been described.
  • the present invention can also be applied to a structure in which only one of the ear portion 222 and the second ear portion 223 is provided. That is, it is sufficient that the outer friction pads 23 and 23A have ears protruding from at least one side in the longitudinal direction of the plate 211.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
PCT/JP2023/024218 2022-07-14 2023-06-29 ディスクブレーキ Ceased WO2024014302A1 (ja)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53128473U (https=) * 1977-03-18 1978-10-12
JPH0514673U (ja) * 1991-07-18 1993-02-26 トキコ株式会社 デイスクブレーキ
WO2017090643A1 (ja) * 2015-11-26 2017-06-01 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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53128473U (https=) * 1977-03-18 1978-10-12
JPH0514673U (ja) * 1991-07-18 1993-02-26 トキコ株式会社 デイスクブレーキ
WO2017090643A1 (ja) * 2015-11-26 2017-06-01 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

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JP7837414B2 (ja) 2026-03-30

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