Abstract: Provided are a brake pad for a disc brake including a resin back plate and a friction material joined to one surface of the resin back plate, in which the resin back plate is formed of a cured product of a first thermosetting resin composition, and a metal reinforcing material is provided on a surface of the resin back plate opposite to the surface joined to the friction material or inside the resin back plate, and a method of manufacturing the brake pad.

Abstract: A method for producing a molded article of the present invention includes a step of preparing a pellet raw material containing a resin and raw fibers, a step of cutting the pellet raw material to obtain a plurality of pellets each containing the resin and fibers produced by cutting the raw fibers, a step of opening the fibers contained in each pellet; and a step of molding the pellets after being opened to obtain the molded article. According to the present invention, it is possible to easily produce a molded article (e.g., a back plate of a brake pad) having excellent mechanical strength. Further, According to the present invention, it is also possible to provide a molded article and a back plate each having excellent mechanical strength, and a brake pad having high reliability.

Abstract: A fiber-containing particulate resin structure (S) is a particulate resin structure including a resin (1) and fibers (2), in which the fibers (2) are dispersed in the resin (1) in an opened state, and an average density of the resin structure is in a range of 0.20 to 1.00 (g/cm3).

Abstract: A back-plate composition of the present invention is a composition for forming a back plate of a brake pad, the brake pad having a friction material and the back plate bonded to the friction material. The back-plate composition includes a resin, a plurality of first fibers and a plurality of second fibers having an average length shorter than an average length of the first fibers. In the case where the average length of the first fibers is “L1” [?m] and the average length of the second fibers is “L2” [?m], “L2”/“L1” is in the range of 0.001 to 0.5. This makes it possible to provide a back-plate composition having excellent moldability, as well as a back plate formed of the back-plate composition, a brake pad including the back-plate and a caliper device provided with the brake pad.

Abstract: A brake pad 10 can brake a rotation of a disc 200. The brake pad 10 includes a friction material 12 provided on the side of the disc 200 and a back plate 11 bonded to the friction material 12 on the opposite side of the disc 200. A thickness of a central region of the back plate 11 in a rotational direction of the disc 200 is larger than thicknesses of both end regions of the back plate 11 in the rotational direction of the disc. In the case where a minimum value of the thicknesses of the end regions of the back plate 11 is defined as “h1 [mm]” and a maximum value of the thickness of the central region of the back plate 11 is defined as “h2 [mm]”, h1 and h2 preferably satisfy a relationship of “h2?h1<3”.

Abstract: The brake pad 10 includes a friction material 12 provided on the side of the disc 200 and a back plate 11 bonded to the friction material on the opposite side of the disc 200. A thickness of a peripheral region of the back plate on the side of a center of the disc is larger than a thickness of a peripheral region of the back plate on the side of an outer circumference of the disc. In the case where a minimum value of the thickness of the peripheral region of the back plate on the side of the center of the disc is defined as “h2 [mm]” and a maximum value of the thickness of the peripheral region of the back plate 11 on the side of the outer circumference of the disc is defined as “h1 [mm]”, h1 and h2 satisfy a relationship of “h2?h1<3”.

Abstract: A back-plate composition of the present invention is a composition for forming a back plate of a brake pad, the brake pad having a friction material and the back plate bonded to the friction material. The back-plate composition includes a resin, a plurality of first fibers and a plurality of second fibers having an average length shorter than an average length of the first fibers. In the case where the average length of the first fibers is “L1” [?m] and the average length of the second fibers is “L2” [?m], “L2”/“L1” is in the range of 0.001 to 0.5. This makes it possible to provide a back-plate composition having excellent moldability, as well as a back plate formed of the back-plate composition, a brake pad including the back-plate and a caliper device provided with the brake pad.

Abstract: A back-plate composition of the present invention is a composition for forming a back plate of a brake pad, the brake pad having a friction material and the back plate bonded to the friction material. The back-plate composition includes a resin, a plurality of first fibers and a plurality of second fibers having an average length shorter than an average length of the first fibers. In the case where the average length of the first fibers is “L1” [?m] and the average length of the second fibers is “L2” [?m], “L2”/“L1” is in the range of 0.001 to 0.5. This makes it possible to provide a back-plate composition having excellent moldability, as well as a back plate formed of the back-plate composition, a brake pad including the back-plate and a caliper device provided with the brake pad.

Abstract: A method for producing a molded article of the present invention includes a step of preparing a pellet raw material containing a resin and raw fibers, a step of cutting the pellet raw material to obtain a plurality of pellets each containing the resin and fibers produced by cutting the raw fibers, a step of opening the fibers contained in each pellet; and a step of molding the pellets after being opened to obtain the molded article. According to the present invention, it is possible to easily produce a molded article (e.g., a back plate of a brake pad) having excellent mechanical strength. Further, According to the present invention, it is also possible to provide a molded article and a back plate each having excellent mechanical strength, and a brake pad having high reliability.

Abstract: A brake pad 10 can brake a disc 200, and includes a friction material 12 provided on the side of the disc 200 and a back plate 11 bonded on the side of the friction material 12 opposite from the disc 200. The back plate 11 has a contact portion 111 making contact with a piston 30 and an edge portion, and a thickness of the contact portion 111 is substantially constant and larger than a thickness of the edge portion. It is preferred that the back plate 11 has a gradual decrease portion 112 whose thickness gradually decreases from the contact portion 111 toward the edge portion. This makes it possible to provide the brake pad capable of sufficiently and uniformly transmitting a pressing force of the piston to the disc through the whole surface of the friction material, and a caliper device provided with the brake pad.

Abstract: A brake pad 10 is adapted to be used in an opposing type caliper device and can brake a rotation of a disc 200. The brake pad 10 includes a friction material 12 provided on the side of the disc 200 and a back plate 11 bonded to the friction material 12 on the opposite side of the disc 200. The back plate 11 is formed of a back-plate composition including a resin and a plurality of fibers. The back plate 11 has an engagement portion 111 into which an attachment portion 70 of the caliper device 100 is capable of being inserted, and with which the inserted attachment portion 70 is engaged. A thickness of a region of the back plate 11 where the engagement portion 111 is provided is larger than a thickness of a region of the back plate 11 where the engagement portion 111 is not provided.

Abstract: A brake pad 10 can brake a rotation of a disc 200. The brake pad 10 includes a friction material 12 provided on the side of the disc 200 and a back plate 11 bonded to the friction material 12 on the opposite side of the disc 200. A thickness of a central region of the back plate 11 in a rotational direction of the disc 200 is larger than thicknesses of both end regions of the back plate 11 in the rotational direction of the disc. In the case where a minimum value of the thicknesses of the end regions of the back plate 11 is defined as “h1 [mm]” and a maximum value of the thickness of the central region of the back plate 11 is defined as “h2 [mm]”, h1 and h2 preferably satisfy a relationship of “h2?h1<3”.

Abstract: A brake pad 10 can control rotating of a disc 200. The brake pad includes a friction material 12 provided on a side of the disc and a back plate 11 bonded to the friction material on an opposite side of the disc. The back plate has non-linear first ridges 111 and/or non-linear first grooves 113 and second ridges 112 and/or second grooves 114 each formed on a surface thereof positioned on a side of the friction material so that a longitudinal direction of the first ridges and/or the first grooves corresponds to a first direction and a longitudinal direction of the second ridges and/or the second grooves corresponds to a second direction intersecting the first direction.

Abstract: The brake pad 10 includes a friction material 12 provided on the side of the disc 200 and a back plate 11 bonded to the friction material on the opposite side of the disc 200. A thickness of a peripheral region of the back plate on the side of a center of the disc is larger than a thickness of a peripheral region of the back plate on the side of an outer circumference of the disc. In the case where a minimum value of the thickness of the peripheral region of the back plate on the side of the center of the disc is defined as “h2 [mm]” and a maximum value of the thickness of the peripheral region of the back plate 11 on the side of the outer circumference of the disc is defined as “h1 [mm]”, h1 and h2 satisfy a relationship of “h2?h1<3”.

Abstract: A brake pad 10 can control rotating of a disc 200. The brake pad 10 includes a friction material 12 provided on a side of the disc and a back plate 11 bonded to the friction material on an opposite side of the disc 200. The back plate has a plurality of ridges 111 and/or a plurality of grooves 112 each formed on an entirety of a surface of the back plate on the side of the friction material so that longitudinal directions of the ridges and/or the grooves are inclined all together with respect to a rotational direction of the disc at a predetermined angle. The friction material is bonded to the back plate so as to make close contact with a surface defining each ridge and/or each groove and the surface of the back plate on the side of the friction material.

Abstract: The brake pad 10 includes a friction material 12 provided on the side of the disc 200 and a back plate 11 bonded to the friction material on the opposite side of the disc. The back plate 11 has a plurality of ridges 111 having a non-linear shape and/or a plurality of grooves 112 having a non-linear shape, the ridges and the grooves each formed on a surface of the back plate 11 on the side of the friction material 12. The friction material 12 is bonded to the back plate 11 so as to make close contact with a surface defining each ridge 111 and/or each groove and the surface of the back plate positioned on the side of the friction material. An average height of the ridges 111 or an average depth of the grooves is preferably in the range of 2 to 6 mm.

Abstract: A back-plate composition of the present invention is a composition for forming a back plate of a brake pad, the brake pad having a friction material and the back plate bonded to the friction material. The back-plate composition includes a resin, a plurality of first fibers and a plurality of second fibers having an average length shorter than an average length of the first fibers. In the case where the average length of the first fibers is “L1” [?m] and the average length of the second fibers is “L2” [?m], “L2”/“L1” is in the range of 0.001 to 0.5. This makes it possible to provide a back-plate composition having excellent moldability, as well as a back plate formed of the back-plate composition, a brake pad including the back-plate and a caliper device provided with the brake pad.

Abstract: In a drive force transmission device, a dry multi-plate clutch is disposed in a closed space for connecting and disconnecting a transmission of drive force. The dry multi-plate clutch includes a drive plate, a driven plate, a frictional face, a front cover and a splash guard. The drive plate is splined to a clutch hub. The driven plate is splined to a clutch drum. The front cover has an air intake port for taking external air into the closed space, and an air venting port for ejecting an air stream from within the closed space to the external air. The splash guard covers the air intake port and the air venting port of the front cover. The splash guard has an opening for drawing in external air through the air intake port and venting an air stream through the air venting port.

Abstract: In a drive force transmission device, a dry multi-plate clutch is disposed in a closed space for connecting and disconnecting a transmission of drive force. The dry multi-plate clutch includes a drive plate, a driven plate, a frictional face, a front cover and a splash guard. The drive plate is splined to a clutch hub. The driven plate is splined to a clutch drum. The front cover has an air intake port for taking external air into the closed space, and an air venting port for ejecting an air stream from within the closed space to the external air. The splash guard covers the air intake port and the air venting port of the front cover. The splash guard has an opening for drawing in external air through the air intake port and venting an air stream through the air venting port.