JP6773858B2 - Magnetic generator - Google Patents

Description

The present invention relates to an adapter for a disc brake rotor, a disc brake rotor including this adapter, and a magnetic generator.

A technique for detecting the rotational state of a wheel is known. For example, Patent Document 1 discloses that a magnet is attached to the spokes of a wheel in order to detect a wheel rotation state, and the magnet is detected by a sensor.

Japanese Unexamined Patent Publication No. 10-076988

An object of the present invention is to provide an adapter for a disc brake rotor that can be suitably used for detecting a rotational state of a bicycle wheel, a disc brake rotor including this adapter, and a magnetic generator.

The magnetic generator according to the first aspect of the present disclosure is a magnetic generator that can be attached to an adapter for attaching a disc brake rotor to a bicycle hub, and holds a magnetic generator and a holding including a first part and a second part. The first part supports the magnetic generating part, and the second part includes the first part and the second part in a state where the magnetic generating device is attached to the adapter. It is attached to the first portion so as to sandwich a part of the adapter between the two.

In the magnetic generator of the second side according to the first side of the present disclosure, the first portion includes an opening in which the magnetic generator is provided.

In the magnetic generator on the third side according to the second aspect of the present disclosure, the opening is the surface of the first portion that faces away from the hub of the bicycle when the magnetic generator is attached to the adapter. It is provided in.

The magnetic generator on the fourth side according to any one of the first to third sides of the present disclosure further comprises a first engaging portion attached to the first portion and the second portion.

In the magnetic generator of the fifth side according to the fourth side of the present disclosure, the first engaging portion includes a bolt.

In the magnetic generator on the sixth side according to the fourth or fifth side surface of the present disclosure, the first portion includes a through hole through which the first engaging portion penetrates.

In the magnetic generator of the fourth side according to any one of the fourth to sixth sides of the present disclosure, the magnetic generator further includes the first portion and the second engaging portion attached to the second portion. , Is provided between the first engaging portion and the second engaging portion.

In the magnetic generator of the eighth side according to the seventh side of the present disclosure, the second engaging portion includes a bolt.

In the magnetic generator of the ninth side surface according to the seventh or eighth side surface of the present disclosure, the first portion penetrates the first through hole through which the first engaging portion penetrates and the second engaging portion penetrates. Including a second through hole, the second portion includes a first opening aligned with the first through hole and a second opening aligned with the second through hole.

In the magnetic generator on the tenth side according to the ninth side surface of the present disclosure, the first opening includes a screw portion that engages with the first engaging portion, and the second opening includes the second engaging portion. Includes a threaded portion that engages the portion.

In the magnetic generator on the eleventh side according to any one of the seventh to tenth aspects of the present disclosure, the first engaging portion and the second engaging portion are such that the magnetic generator is attached to the adapter. In the state, the protruding portion extending in the radial direction of the adapter is arranged at a position sandwiched between the first engaging portion and the second engaging portion.

In the magnetic generator on the twelfth side according to the eleventh aspect of the present disclosure, the magnetic generator is aligned with the protrusion in the axial direction of the adapter in a state where the magnetic generator is attached to the adapter.

In the magnetic generator of the thirteenth aspect according to any one of the first to twelfth aspects of the present disclosure, the first portion and the second portion are configured to fix the adapter to the hub of the bicycle. It is configured to be attached to the adapter regardless of the fixing function of the fixing member.

In the magnetic generator of the 14th side according to any one of the 1st to 13th sides of the present disclosure, the first part and the second part are configured to be detachably attached to the adapter.

The magnetic generator according to the 16th aspect of the present disclosure is a magnetic generator that can be attached to an adapter for attaching a disc brake rotor to a bicycle hub, and includes a magnetic generator and an attachment that supports the magnetic generator. The magnetic generator is provided with an engaging portion configured to fix the mounting portion to a part of the adapter when the magnetic generator is mounted on the adapter.

In the magnetic generator on the 16th side according to the 15th side of the present disclosure, the magnetic generator includes a plurality of permanent magnets provided on the mounting portion at intervals in the circumferential direction.

In the magnetic generator on the 17th side according to the 15th or 16th side surface of the present disclosure, the mounting portion includes an opening in which the magnetic generating portion is provided.

In the magnetic generator on the eighteenth side according to the seventeenth aspect of the present disclosure, the opening is on the surface of the attachment that faces away from the hub of the bicycle when the magnetic generator is attached to the adapter. Provided.

In a magnetic generator on the 19th side according to any one of the 15th to 18th sides of the present disclosure, the engaging portion comprises a bolt.

In the magnetic generator on the 19th side according to any one of the 15th to 19th sides of the present disclosure, the mounting portion includes a through hole through which the engaging portion penetrates.

In the magnetic generator of the 19th aspect according to any one of the 1st to 20th aspects of the present disclosure, the magnetic generator includes at least one permanent magnet.

(Example of disc brake rotor adapter, etc.)
The disc brake rotor adapter according to the first A1 side surface is an adapter for attaching the main body of the disc brake rotor to the hub of the bicycle, and is an inner peripheral portion including a second spline that can be fitted with the first spline provided on the hub. , And the adapter main body including the outer peripheral portion to which the main body of the disc brake rotor is attached, the magnetic generating portion, and the magnetic generating portion regardless of the fixing function of the fixing member for fixing the adapter to the hub. Includes a mounting portion to be mounted on the adapter body.
According to the first A1 side surface, the rotational state of the bicycle wheel can be detected by using the magnetic generating portion attached to the adapter of the disc brake rotor.

In the adapter of the disc brake rotor on the A2 side surface that follows the A1 side surface, the mounting portion is configured to be detachable from the adapter body.
According to the second aspect A2, the magnetic generator can be attached to the adapter of the disc brake rotor according to the user's request, so that usability is improved.

In the adapter of the disc brake rotor on the A3 side surface that follows the A1 or A2 side surface, the mounting portion has a holding portion that holds the magnetic generating portion and an engaging portion that engages with the adapter body.
According to the third side surface A3, since the magnetic generating portion is held by the holding portion, it can be stably attached to the adapter of the disc brake rotor.

In the adapter of the disc brake rotor on the A4 side surface that follows the A3 side surface, the engaging portion includes a first threaded portion.
According to the fourth A4 side surface, the magnetic generating portion can be easily attached to the adapter of the disc brake rotor by the first screw portion.

In the adapter of the disc brake rotor on the A5 side surface that follows the A4 side surface, the adapter body includes a second threaded portion with which the first threaded portion engages.
According to the A5 side surface, the magnetic generating portion can be easily attached to the adapter of the disc brake rotor by engaging the first screw portion and the second screw portion.

In the adapter of the disc brake rotor on the A6 side surface that follows the A4 side surface, the engaging portion is formed separately from the holding portion, and the holding portion has a first through hole through which the engaging portion penetrates. It includes a third screw portion that engages with the first screw portion in a state where the engaging portion penetrates the first through hole.
According to the A6 side surface, the magnetic generating portion can be easily attached to the adapter of the disc brake rotor by engaging the first screw portion and the third screw portion.

In the adapter of the disc brake rotor on the A7 side surface that follows the A4 side surface, the engaging portion is formed separately from the holding portion, and the adapter body includes a second through hole through which the engaging portion penetrates. The holding portion includes a fourth screw portion that engages with the first screw portion in a state where the engaging portion penetrates the second through hole.
According to the A7 side surface, the magnetic generating portion can be easily attached to the adapter of the disc brake rotor by engaging the first screw portion and the fourth screw portion.

In the adapter of the disc brake rotor on the A8 side surface that follows the A1 side surface, the mounting portion is formed integrally with the adapter body.
According to the A8th side surface, the magnetic generating part can be stably attached to the adapter body.

In the adapter of the disc brake rotor on the A9 side according to any one of the A1 to A7 side surfaces, the outer peripheral portion projects outward in the radial direction and includes a plurality of protrusions to which the main body of the disc brake rotor is attached. ..
According to the A9 side surface, the magnetic generating portion can be attached to the protruding portion.

In the adapter of the disc brake rotor on the A10 side surface that follows the A9 side surface, the magnetic generating portion is provided between the two adjacent protruding portions.
According to the A10th side surface, since the magnetic generating portion is provided between the two adjacent protruding portions, it is possible to suppress the increase in size of the apparatus.

In the adapter of the disc brake rotor on the A11 side surface that follows the A9 side surface, the magnetic generating portion is provided on the protruding portion.
According to the A11 side surface, the magnetic generating portion can be provided on the protruding portion.

In the adapter of the disc brake rotor on the A12 side surface according to the A1 side surface, the outer peripheral portion protrudes outward in the radial direction and includes a plurality of protrusions to which the main body of the disc brake rotor is attached, and the protrusion is the disc. The mounting portion includes a first hole for mounting the main body of the brake rotor, and the mounting portion is inserted into the first hole and fixed to the protruding portion.
According to the A12 side surface, the magnetic generating portion can be stably fixed to the protruding portion by inserting the mounting portion into the first hole. Further, by attaching the magnetic generating portion to the adapter of the disc brake rotor by using the first hole for attaching the main body of the disc brake rotor, it is possible to suppress the increase in size of the device.

In the adapter of the disc brake rotor on the A13 side surface that follows the A12 side surface, the mounting portion is inserted into the first hole and the second hole formed in the main body of the disc brake rotor, and the protrusion and the protrusion. Includes a connecting part that connects to the body of the disc brake rotor.
According to the A13 side surface, the magnetic generating portion can be stably fixed to the protruding portion by inserting the mounting portion into the first hole and the second hole. Further, by attaching the magnetic generating portion to the adapter of the disc brake rotor by using the first hole and the second hole for attaching the main body of the disc brake rotor, it is possible to suppress the increase in size of the device.

In the adapter of the disc brake rotor on the A14 side according to any one of the A1 to A13 sides, the magnetic generator comprises at least one permanent magnet.
According to the aspect of A14, the magnetizing unit can stably generate magnetism.

In the adapter of the disc brake rotor on the A15 side surface that follows any one of the A1 to A9 side surfaces and the A11 to A13 side surfaces, the magnetic generator is a permanent ring-shaped magnet in which a plurality of magnetic poles are arranged in the circumferential direction. Includes magnets.
According to the A15th side surface, the detection accuracy of the rotational state of the wheel of the bicycle can be improved by detecting the plurality of magnetic poles.

In the adapter of the disc brake rotor on the A16 side surface that follows any one of the A1 to A9 side surfaces and the A11 to A13 side surfaces, the mounting portion includes a ring-shaped base portion, and the magnetic generating portion is , Includes a plurality of permanent magnets spaced apart from each other in the circumferential direction of the base.
According to the aspect A16, the accuracy of detecting the rotational state of the wheel of the bicycle can be improved by detecting the magnetism of the plurality of permanent magnets.

In the adapter of the disc brake rotor on the A17 side surface that follows any one of the A1 to A16 side surfaces, the adapter further includes a heat insulating portion that is arranged between the magnetic generating portion and the mounting portion and suppresses heat transfer. ..
According to the aspect A17, the influence of heat on the magnetism generated from the magnetic generating portion can be reduced by the heat insulating portion.

In the adapter for the disc brake rotor on the A18 side according to any one of the A1 to A17 sides, the adapter body comprises steel or an aluminum alloy.
According to the A18 aspect, the adapter body can be made of a suitable material.

The disc brake rotor according to the A19 side surface includes an adapter of the disc brake rotor according to any one of the A1 to A18 side surfaces, and a main body of the disc brake rotor attached to the adapter.
According to the A19 side surface, the disc brake rotor can be suitably used for detecting the rotational state of the wheels of the bicycle.

The disc brake rotor according to the A20 side surface includes a plurality of first mounting portions that can be bolted to the hub of the bicycle, a second mounting portion provided at a position different from the first mounting portion, a magnetic generating portion, and the above. Includes a mounting portion that detachably attaches the magnetic generating portion to the second mounting portion.
According to the A20 side surface, a disc brake rotor that can be bolted to the hub of the bicycle can be suitably used for detecting the rotational state of the wheels of the bicycle.

A21 A21 A magnetic generator according to the present invention includes a hub connection portion for attaching to a bicycle hub, a main body arranged radially outside the hub connection portion, and the hub connection portion extending in the radial direction. A magnetic generator that can be attached to a disc brake rotor that includes an arm that connects to the main body, and is formed integrally with the magnetic generator, the holding portion that holds the magnetic generating portion, and the holding portion, and the disc. The holding portion includes at least a third mounting portion that can be mounted on the first side surface in the axial direction of the brake rotor, and the holding portion is at least the magnetic generating portion in a state where the third mounting portion is mounted on the first side surface. A part of the disc brake rotor is configured to project from the first side surface into a space between adjacent arms in the circumferential direction of the disc brake rotor.
According to the A21 side surface, the disc brake rotor can be suitably used for detecting the rotational state of the wheels of the bicycle.

In the magnetic generator on the side surface of A22 that follows the side surface of A21, the magnetic generator is embedded in the holding portion.
According to the A22 side surface, the magnetic generating portion can be stably attached to the disc brake rotor.

The magnetic generator of the present disclosure can be suitably used for detecting the rotational state of a bicycle wheel.

A side view of the disc brake rotor of the first embodiment as viewed from the first direction. The front view which shows the disc brake rotor of FIG. 1 and the hub of a bicycle. FIG. 3 is a partial cross-sectional view taken along the line 3-3 of FIG. A side view of the adapter of FIG. 1 as viewed from the first direction. A side view of the adapter of FIG. 1 as viewed from the second direction. FIG. 5 is a cross-sectional view taken along the line 6-6 of FIG. A side view of the adapter of the second embodiment as viewed from the second direction. FIG. 6 is a cross-sectional view taken along the line 8-8 of FIG. A side view of the adapter of the third embodiment as viewed from the second direction. FIG. 9 is a cross-sectional view taken along the line 10-10 of FIG. A side view of the adapter of the fourth embodiment as viewed from the second direction. FIG. 11 is a cross-sectional view taken along the line 12-12 of FIG. A side view of the adapter of the fifth embodiment as viewed from the second direction. FIG. 6 is a cross-sectional view taken along the line 14-14 of FIG. FIG. 5 is a partial cross-sectional view of an adapter of a modified example of the fifth embodiment. FIG. 6 is a partial cross-sectional view of the adapter of the sixth embodiment. FIG. 6 is a partial cross-sectional view of an adapter of a modified example of the sixth embodiment. FIG. 6 is a partial cross-sectional view of the adapter of the seventh embodiment. FIG. 5 is a partial cross-sectional view of an adapter of a modified example of the seventh embodiment. FIG. 5 is a partial cross-sectional view of the adapter of the eighth embodiment. A side view of the adapter of the first modification as seen from the second direction. A side view of the adapter of the second modification as seen from the second direction. A side view of the mounting portion of the third modification as viewed from the first direction. A side view of the adapter of the fourth modification as seen from the second direction. A side view of the adapter of the fifth modification as seen from the second direction. FIG. 25 is a cross-sectional view taken along the line 26-26 of FIG. FIG. 3 is a partial cross-sectional view of the disc brake rotor of the sixth modification. An exploded perspective view of the disc brake rotor of the seventh modification. The perspective view of the disc brake rotor of the 8th modification. FIG. 29 is a perspective view of the mounting portion of FIG. 29. An exploded perspective view of the disc brake rotor of the ninth modification.

(First Embodiment)
The disc brake rotor 10 including the adapter 20A of the first embodiment will be described with reference to FIGS. 1 to 13.

As shown in FIG. 1, the disc brake rotor 10 includes an adapter 20A of the disc brake rotor 10 and a main body 12 of the disc brake rotor 10 attached to the adapter 20A.

As shown in FIG. 2, the disc brake rotor 10 is fixed to the hub H by a fixing member R for fixing the adapter 20A to the hub H, and rotates integrally with the hub shell H1 of the hub H. The fixing member R has a fixing function for fixing the adapter 20A to the hub H. Specifically, the disc brake rotor 10 is sandwiched between the hub H and the fixing member R in a state where the second spline 32A of the disc brake rotor 10 is fitted into the first spline H3 formed on the outer peripheral portion of the hub H. Thereby, the disc brake rotor 10 is attached to the hub H. The first spline H3 is provided at the first end portion H4 of the hub shell H1 of the hub H in the direction along the rotation axis of the hub H. The first spline H3 is configured to include a plurality of uneven portions extending in a direction along the rotation axis of the hub H. A protrusion H5 is formed on the outer peripheral portion of the hub shell H1 adjacent to the first spline H3. The protrusion H5 is arranged on the second end portion H6 side of the hub shell H1 with respect to the first spline H3 in the direction along the rotation axis of the hub H. The protrusion H5 projects outward from the first spline H3 in the radial direction of the hub H. The protrusion H5 is preferably formed over the entire circumference of the hub shell H1. In FIG. 2, the hub H does not have a freewheel, but may be a hub with a freewheel.

The fixing member R includes a disk-shaped disk portion R1 and a convex portion R2 protruding from the disk portion R1 in the axial direction of the disc brake rotor 10. The axial direction of the disc brake rotor 10 is hereinafter simply referred to as "axial direction". The convex portion R2 includes a male screw portion R3 on the outer peripheral portion. The male screw portion R3 of the convex portion R2 shown in FIG. 3 is configured to be screwable into the female screw portion H2 formed on the inner peripheral portion of the hub shell H1 of the hub H. When a male screw portion for fixing the fixing member R is formed on the outer peripheral portion of the hub shell H1 of the hub H, the convex portion R2 is omitted from the fixing member R, and the outer peripheral portion of the hub shell H1 is formed on the inner peripheral portion of the disk portion R1. A female screw portion that can be screwed may be formed in the male screw portion formed in the portion.

As shown in FIG. 1, the main body 12 is formed in a disk shape. The main body 12 includes a brake pad (not shown) of a disc brake caliper and a slidable sliding surface 12A. As shown in FIG. 2, the sliding surfaces 12A are formed on both side surfaces 12S of the main body 12 in the axial direction. The main body 12 is formed in an annular shape. The sliding surface 12A is formed on the outer peripheral portion of the main body 12. As shown in FIG. 3, a second hole 12B that penetrates the main body 12 in a direction parallel to the axial direction is provided near the inner peripheral portion of the main body 12. Through holes 12D that penetrate the main body 12 in a direction parallel to the axial direction may be formed in the outer peripheral portion, the inner peripheral portion, and the intermediate portion between the inner peripheral portion and the outer peripheral portion of the main body 12, respectively. preferable. It is preferable that the intermediate portion includes a plurality of arm portions 12C that are separated from each other in the circumferential direction and extend outward in the radial direction of the disc brake rotor 10. The radial direction of the disc brake rotor 10 is hereinafter simply referred to as "diameter direction".

The adapter 20A is for attaching the main body 12 of the disc brake rotor 10 to the hub H of the bicycle (see FIG. 2). As shown in FIG. 4, the adapter 20A includes an adapter main body 22, a magnetic generating portion 24, and a mounting portion 26. In one example, the adapter 20A further includes an insulation 28 (see FIG. 6) and a coupling 30.

The adapter body 22 is made of metal. The adapter body 22 contains steel or aluminum alloy. The adapter body 22 is preferably made of a material having low magnetic permeability. The adapter body 22 includes an inner peripheral portion 32 and an outer peripheral portion 34. The inner peripheral portion 32 includes a second spline 32A. The second spline 32A can be fitted with the first spline H3 provided on the hub H shown in FIG. In the axial direction, one end 32B of the inner peripheral portion 32 comes into contact with the protrusion H5 of the hub shell H1 with the disc brake rotor 10 attached to the hub H. It is preferable that the end surface of one end 32B of the inner peripheral portion 32 in the axial direction is formed so as to be included in a plane perpendicular to the axial direction. As shown in FIG. 1, the outer peripheral portion 34 is located outside the inner peripheral portion 32 in the radial direction. The main body 12 of the disc brake rotor 10 is attached to the outer peripheral portion 34. The outer peripheral portion 34 projects outward in the radial direction, and includes a plurality of protruding portions 36 to which the main body 12 of the disc brake rotor 10 is attached. The protrusions 36 are provided at predetermined intervals in the circumferential direction of the disc brake rotor 10. The circumferential direction of the disc brake rotor 10 is hereinafter simply referred to as "circumferential direction". The number of protrusions 36 is, for example, 6. As shown in FIG. 3, the protrusion 36 includes a first hole 36A for mounting the main body 12 of the disc brake rotor 10. The first hole 36A extends in a direction parallel to the axial direction. The first hole 36A is formed at the tip of each protrusion 36. The first hole 36A preferably penetrates the protrusion 36 in the axial direction. The first hole 36A is formed at a position corresponding to the second hole 12B formed in the main body 12 of the disc brake rotor 10. The coupling portion 30 is inserted into the first hole 36A and the second hole 12B. The joint 30 includes, for example, rivets. The main body 12 of the disc brake rotor 10 and the adapter 20A are attached to each other by the coupling portion 30. The joint 30 may include bolts. When the joint portion 30 includes a bolt, for example, a screw that can be connected to the bolt is formed in the inner peripheral portion of the second hole 12B, and the head and the protruding portion of the bolt are inserted through the second hole 12B. The main body 12 is sandwiched between the 36 and the body and fixed.

The mounting portion 26 mounts the magnetic generating portion 24 on the adapter main body 22 regardless of the fixing function of the fixing member R. The mounting portion 26 is provided between two projecting portions 36 adjacent to each other in the circumferential direction. As shown in FIG. 6, the mounting portion 26 is integrally formed with the adapter main body 22. The mounting portion 26 has a holding portion 38 that holds the magnetic generating portion 24. The holding portion 38 includes a recess 38A. The recess 38A opens in one direction in the axial direction. The opening of the recess 38A is formed on the second end H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. In this case, the adapter body 22 is preferably formed of a material having a low magnetic permeability such as an aluminum alloy. When the adapter body 22 is made of a material having a low magnetic permeability, the opening of the recess 38A may be formed on the outer side in the radial direction with the disc brake rotor 10 attached to the hub H. The opening of the recess 38A may be formed on the side of the hub H opposite to the second end H6 side of the hub shell H1 with the disc brake rotor 10 attached to the hub H. When the adapter body 22 is made of a material having a high magnetic permeability, the opening of the recess 38A is formed with the second end H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. Is preferably formed on the opposite side.

The magnetic generating portion 24 is housed in the recess 38A. It is preferable that the entire magnetic generating portion 24 is housed in the recess 38A, but a part of the magnetic generating portion 24 may protrude from the recess 38A. The magnetic generator 24 includes at least one permanent magnet. The magnetic generating portion 24 is provided between two adjacent protruding portions 36. The shape of the permanent magnet is not limited, but is formed into, for example, a cylindrical shape. The permanent magnet is provided in the recess 38A so that the magnetic poles are aligned in the axial direction. The magnetic generating portion 24 is provided between two projecting portions 36 adjacent to each other in the circumferential direction. The heat insulating portion 28 is arranged between the magnetic generating portion 24 and the mounting portion 26, and suppresses heat transfer. In one example, the heat insulating portion 28 contains a resin. The heat insulating portion 28 is preferably formed of a material having a low magnetic permeability. The heat insulating portion 28 and the magnetic generating portion 24 are held in the recess 38A by light press fitting or an adhesive. The magnetic generator 24 may be molded with a resin.

(Second Embodiment)
The adapter 20B of the second embodiment will be described with reference to FIGS. 7 and 8. The adapter 20B of the second embodiment is the same as the adapter 20A of the first embodiment except that the mounting portion 42 is formed separately from the adapter main body 22, so that the configuration common to that of the first embodiment is described. , The same reference numerals as those of the first embodiment will be added, and duplicate description will be omitted.

As shown in FIG. 7, the mounting portion 42 is provided between two adjacent protrusions 36. The mounting portion 42 is formed separately from the adapter main body 22. The mounting portion 42 mounts the magnetic generating portion 24 on the adapter main body 22 regardless of the fixing function of the fixing member R. The mounting portion 42 includes a holding portion 44 and an engaging portion 46. The holding portion 44 is formed of metal or resin. The holding portion 44 is preferably formed of a material having a low magnetic permeability. The holding portion 44 includes a recess 44A. The recess 44A opens in one direction in the axial direction. The opening of the recess 44A is formed on the second end H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. The opening of the recess 44A may be formed on the side of the hub H opposite to the second end portion H6 of the hub shell H1 with the disc brake rotor 10 attached to the hub H. When the holding portion 44 is formed of a material having a high magnetic permeability, the opening of the recess 44A is on the side opposite to the second end portion H6 of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. It is preferably formed. The engaging portion 46 engages with the adapter body 22. The engaging portion 46 contains, for example, an adhesive. The engaging portion 46 fixes the holding portion 44 to the outer peripheral portion 34. When the holding portion 44 is formed of a material having a low magnetic permeability such as an aluminum alloy and a resin, the opening of the recess 44A may be formed inside or outside in the radial direction.

As shown in FIG. 8, the magnetic generator 24 is housed in the recess 44A. It is preferable that the entire magnetic generating portion 24 is housed in the recess 44A, but a part of the magnetic generating portion 24 may protrude from the recess 44A. The heat transfer between the adapter body 22 and the magnetic generator 24 is suppressed by the holding portion 44 and the engaging portion 46. Therefore, in the adapter 20B of the second embodiment, since the mounting portion 42 functions as a heat insulating portion, the heat insulating portion 28 of the first embodiment can be omitted, but between the mounting portion 42 and the magnetic generating portion 24. The heat insulating portion 28 may be provided in the.

(Third Embodiment)
The adapter 20C of the third embodiment will be described with reference to FIGS. 9 and 10. In the adapter 20C of the third embodiment, at least one of the coupling portions 30 is changed to the connecting portion 54, the magnetic generating portion 24 is provided on the protruding portion 36, and the mounting portion 48 is formed separately from the adapter main body 22. Since the adapter 20A of the first embodiment is the same as the adapter 20A of the first embodiment, the same reference numerals as those of the first embodiment are assigned to the configurations common to the first embodiment, and duplicate description will be omitted.

As shown in FIG. 9, the mounting portion 48 is provided on the protruding portion 36. The mounting portion 48 mounts the magnetic generating portion 24 on the adapter main body 22 regardless of the fixing function of the fixing member R. The mounting portion 48 is formed separately from the adapter main body 22. The mounting portion 48 includes a holding portion 50. In one example, the mounting portion 48 further includes a connecting portion 54. The connecting portion 54, like the connecting portion 30, includes rivets. The holding portion 50 is formed of metal or resin. The holding portion 50 is provided on the second end portion H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. The holding portion 50 includes a recess 50A. The opening of the recess 50A is formed on the second end H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. A through hole 50B is formed at the bottom of the recess 50A so as to penetrate the adapter body 22 side. The magnetic generating portion 24 and the connecting portion 54 are arranged at positions where they overlap in the axial direction. In another example, the magnetic generating portion 24 and the connecting portion 54 are arranged at positions that do not overlap in the axial direction. In this case, for example, the holding portion 50 extends radially inside, radially outside, or circumferentially from the connecting portion 54, and a recess 50A is formed in a portion that does not overlap with the connecting portion 54.

The mounting portion 48 is inserted into the first hole 36A and fixed to the protruding portion 36. As shown in FIG. 10, the connecting portion 54 is inserted into the first hole 36A and the second hole 12B formed in the main body 12 of the disc brake rotor 10, and is inserted into the protruding portion 36 and the main body 12 of the disc brake rotor 10. To concatenate. The first end portion 54A of the connecting portion 54 is located in the internal space of the recess 50A through the through hole 50B. The holding portion 50 is sandwiched between the portion of the first end portion 54A that is arranged in the internal space of the recess 50A and the protruding portion 36, and the holding portion 50 is supported.

The magnetic generator 24 is housed in the recess 50A. It is preferable that the entire magnetic generating portion 24 is housed in the recess 50A, but a part of the magnetic generating portion 24 may protrude from the recess 50A. The magnetic generating portion 24 is provided on the protruding portion 36. The heat insulating portion 28 is arranged between the magnetic generating portion 24 and the mounting portion 48, and suppresses heat transfer.

(Fourth Embodiment)
The adapter 20D of the fourth embodiment will be described with reference to FIGS. 11 and 12. The adapter 20D of the fourth embodiment is the same as the adapter 20A of the first embodiment except that the mounting portion 56 is fixed to the protruding portion 36 and the mounting portion 48 is formed separately from the adapter main body 22. The configurations common to the first embodiment are designated by the same reference numerals as those of the first embodiment, and duplicate description will be omitted.

As shown in FIG. 11, the mounting portion 56 is provided on the protruding portion 36. The mounting portion 56 mounts the magnetic generating portion 24 on the adapter main body 22 regardless of the fixing function of the fixing member R. The mounting portion 56 is formed separately from the adapter main body 22. The mounting portion 26 is configured to be removable from the adapter main body 22. The mounting portion 56 includes a holding portion 58 and an engaging portion 60 (see FIG. 12). The holding portion 58 includes a recess 58A. The holding portion 58 is formed of metal or resin. The holding portion 58 is provided on the second end portion H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. The opening of the recess 58A is provided on the second end H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. In this case, the holding portion 58 is preferably formed of a material having a low magnetic permeability such as an aluminum alloy and a resin. In another example, the holding portion 58 is provided on the side of the hub H opposite to the second end portion H6 of the hub shell H1 with the disc brake rotor 10 attached to the hub H. The opening of the recess 58A is provided on the side of the hub H opposite to the second end portion H6 of the hub shell H1 with the disc brake rotor 10 attached to the hub H. When the holding portion 58 is formed of a material having a low magnetic permeability such as an aluminum alloy and a resin, the opening of the recess 58A may be formed on the inner or outer side in the radial direction, or on one side or the other side in the circumferential direction. Good. The magnetic generator 24 is housed in the recess 58A. It is preferable that the entire magnetic generating portion 24 is housed in the recess 58A, but a part of the magnetic generating portion 24 may protrude from the recess 58A. The heat insulating portion 28 is arranged between the magnetic generating portion 24 and the holding portion 58, and suppresses heat transfer.

As shown in FIG. 12, the engaging portion 60 includes a first threaded portion 60A. The adapter body 22 includes a second threaded portion 22B to which the first threaded portion 60A engages. The first threaded portion 60A includes a male thread. The second threaded portion 22B includes a female thread. The second threaded portion 22B is formed radially inside the first hole 36A of the protruding portion 36. The screw hole of the second screw portion 22B extends in parallel in the axial direction, and opens to the second end portion H6 side of the hub shell H1 of the hub H in a state where the disc brake rotor 10 is attached to the hub H. When the holding portion 58 is provided on the side opposite to the second end portion H6 of the hub shell H1, the screw hole of the second screw portion 22B opens on the side opposite to the second end portion H6 of the hub shell H1. The screw hole of the second screw portion 22B may extend parallel to the axial direction and penetrate the protruding portion 36. The engaging portion 60 may be formed integrally with the holding portion 58, or may be formed separately and attached to the holding portion 58. By screwing the first screw portion 60A into the second screw portion 22B, the magnetic generating portion 24 can be attached to the adapter main body 22. The screw hole of the second screw portion 22B may extend in a direction intersecting the axial direction.

(Fifth Embodiment)
The adapter 20E of the fifth embodiment will be described with reference to FIGS. 13 and 14. The adapter 20E of the fifth embodiment is the same as the adapter 20A of the first embodiment except that the mounting portion 62 is fixed to the protruding portion 36 and the mounting portion 62 is formed separately from the adapter main body 22. The configurations common to the first embodiment are designated by the same reference numerals as those of the first embodiment, and duplicate description will be omitted.

As shown in FIG. 13, the mounting portion 62 is provided on the protruding portion 36. The mounting portion 62 mounts the magnetic generating portion 24 on the adapter main body 22 regardless of the fixing function of the fixing member R. The mounting portion 62 is formed separately from the adapter main body 22. The mounting portion 62 is configured to be removable from the adapter main body 22. The mounting portion 62 includes a holding portion 64 and an engaging portion 66 (see FIG. 14). The holding portion 64 includes a recess 64A. The holding portion 64 is formed of metal or resin. The holding portion 64 is provided on the second end portion H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. The opening of the recess 64A is provided on the second end H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. In this case, the holding portion 64 is preferably formed of a material having a low magnetic permeability such as an aluminum alloy and a resin. In another example, the opening of the recess 64A is formed on the side of the hub H opposite to the second end H6 of the hub shell H1 with the disc brake rotor 10 attached to the hub H. When the holding portion 64 is formed of a material having a low magnetic permeability such as an aluminum alloy and a resin, the opening of the recess 64A may be formed on the inner or outer side in the radial direction, or on one side or the other side in the circumferential direction. Good. The holding portion 64 may be provided on the side of the hub H opposite to the second end portion H6 of the hub shell H1 with the disc brake rotor 10 attached to the hub H. The magnetic generator 24 is housed in the recess 64A. It is preferable that the entire magnetic generating portion 24 is housed in the recess 64A, but a part of the magnetic generating portion 24 may protrude from the recess 64A.

As shown in FIG. 14, the engaging portion 66 includes two claw portions 66A extending axially from the holding portion 64. One of the two claws 66A is inserted into the through hole 22C formed in the protrusion 36. The other of the two claw portions 66A is arranged outside the protruding portion 36 in the circumferential direction. The holding portion 64 is fixed to the protruding portion 36 by sandwiching the protruding portion 36 between the two claw portions 66A. The engaging portion 66 and the claw portion 66A may be formed and assembled separately, or may be integrally molded.

As shown in FIG. 15, the mounting portion 62 may include an engaging portion 68 forming a ring shape by connecting one end portion 68A and the other end portion 68B in the circumferential direction instead of the engaging portion 66. The engaging portion 68 is held by fitting the protruding portion 36 into the inner peripheral side of the engaging portion 68 with the one end 68A and the other end 68B separated from each other and connecting the one end 68A and the other end 68B. 64 is fixed to the protrusion 36. The one end 68A and the other end 68B are formed with recesses and protrusions that engage with each other.

(Sixth Embodiment)
The adapter 20F of the sixth embodiment will be described with reference to FIG. The adapter 20F of the sixth embodiment is the same as the adapter 20E of the fifth embodiment except that the holding portion 72 and the engaging portion 74 are separate bodies. Therefore, the configuration common to the fifth embodiment is described in the fifth embodiment. 5 The same reference numerals as those of the embodiment will be added, and duplicate description will be omitted.

The mounting portion 70 includes a holding portion 72 and an engaging portion 74. The mounting portion 70 mounts the magnetic generating portion 24 on the adapter main body 22 regardless of the fixing function of the fixing member R. The holding portion 72 includes a first portion 76 and a second portion 78 arranged so as to sandwich the protruding portion 36. The first portion 76 is arranged on the second end portion H6 side of the hub shell H1 of the hub H in the protruding portion 36 with the disc brake rotor 10 attached to the hub H. The first portion 76 includes a recess 76A. With the disc brake rotor 10 attached to the hub H, the second portion 78 is provided on the side of the hub H opposite to the second end H6 side of the hub shell H1. The opening of the recess 76A is provided on the second end H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. In this case, it is preferable that the first portion 76 is formed of a material having a low magnetic permeability such as an aluminum alloy and a resin. In another example, the openings of the first portion 76 and the recess 76A are provided on the opposite side of the hub shell H1 from the second end H6, and the second portion 78 is provided on the second end H6 side of the hub shell H1. When the holding portion 72 is formed of a material having a low magnetic permeability such as an aluminum alloy or a resin, the opening of the recess 76A may be formed on the inner or outer side in the radial direction, or on one side or the other side in the circumferential direction. Good. The magnetic generator 24 is housed in the recess 76A. It is preferable that the entire magnetic generating portion 24 is housed in the recess 76A, but a part of the magnetic generating portion 24 may protrude from the recess 64A. The heat insulating portion 28 is arranged between the magnetic generating portion 24 and the mounting portion 70, and suppresses heat transfer.

The engaging portion 74 is formed separately from the holding portion 72. The engaging portion 74 includes a first threaded portion 74A. The engaging portion 74 is formed by a bolt. The holding portion 72 includes a first through hole 76B through which the engaging portion 74 penetrates, and a third screw portion 78A that engages with the first screw portion 74A while the engaging portion 74 penetrates the first through hole 76B. ,including. The first through hole 76B is formed in the first portion 76. The third threaded portion 78A is formed in the second portion 78. The screw hole of the third screw portion 78A may penetrate the second portion 78. The mounting portion 70 includes a plurality of engaging portions 74. The first through hole 76B and the third threaded portion 78A are formed in the holding portion 72 corresponding to the number of engaging portions 74. At least two of the engaging portions 74 are arranged at positions sandwiching the protruding portion 36 in the circumferential direction. In the mounting portion 70, with the protruding portion 36 sandwiched between the first portion 76 and the second portion 78, the engaging portion 74 penetrates the first through hole 76B, and the first screw portion 74A becomes the third screw portion 78A. It is fixed to the protrusion 36 by being screwed in.

In the adapter 20F, with the disc brake rotor 10 attached to the hub H, the inner diameter of the end portion of the hub H of the hub H of the first through hole 76B on the second end portion H6 side is increased as shown in FIG. However, the end portion of the engaging portion 74 may not protrude from the first portion 76. Further, the recess 76A may be omitted from the first portion 76, and the magnetic generating portion 24 and the heat insulating portion 28 may be provided on the surface of the first portion 76 opposite to the protruding portion 36.

(7th Embodiment)
The adapter 20G of the seventh embodiment will be described with reference to FIG. The adapter 20G of the seventh embodiment is the same as the adapter 20F of the sixth embodiment except that the first portion 76 and the second portion 78 of the holding portion 80 are connected, and thus has a configuration common to that of the sixth embodiment. With the same reference numerals as those of the sixth embodiment, duplicate description will be omitted.

The holding portion 80 includes a first portion 76, a second portion 78, and a third portion 82. The third portion 82 connects the ends of the first portion 76 and the second portion 78 in the circumferential direction, respectively. The third portion 82 extends in a direction parallel to the axial direction. The holding portion 80 has a U-shaped cross section in the direction perpendicular to the radial direction. The third portion 82 is arranged on one side of the protrusion 36 in the circumferential direction. The engaging portion 74 penetrates the first through hole 76B of the first portion 76 on the other side of the protruding portion 36 in the circumferential direction, and the first screw portion 74A is screwed into the third screw portion 78A.

In the adapter 20G, with the disc brake rotor 10 attached to the hub H, the inner diameter of the end on the second end H6 side of the hub shell H1 of the hub H of the first through hole 76B is increased as shown in FIG. , The end of the engaging portion 74 may not protrude from the first portion 76. Further, the recess 76A may be omitted from the first portion 76, and the magnetic generating portion 24 and the heat insulating portion 28 may be provided on the surface of the first portion 76 opposite to the protruding portion 36.

(8th Embodiment)
The adapter 20H of the eighth embodiment will be described with reference to FIG. The adapter 20H of the eighth embodiment is the same as the adapter 20A of the first embodiment except that the mounting portion 84 is fixed to the protruding portion 36 and the mounting portion 84 is formed separately from the adapter main body 22. The configurations common to the first embodiment are designated by the same reference numerals as those of the first embodiment, and duplicate description will be omitted.

In the adapter 20H, the engaging portion 88 and the holding portion 86 are formed separately. The mounting portion 84 of the adapter 20H includes a holding portion 86 and an engaging portion 88. The mounting portion 84 mounts the magnetic generating portion 24 on the adapter main body 22 regardless of the fixing function of the fixing member R. The mounting portion 84 is provided on the protruding portion 36. The engaging portion 88 includes a first threaded portion 88A. The mounting portion 84 is configured to be removable from the adapter main body 22. The adapter body 22 includes a second through hole 22D through which the engaging portion 88 penetrates. The second through hole 22D extends in the axial direction. The holding portion 86 includes a fourth screw portion 86B that engages with the first screw portion 88A in a state where the engaging portion 88 penetrates the second through hole 22D.

The holding portion 86 includes a recess 86A. The holding portion 86 is formed of metal or resin. The holding portion 86 is provided on the second end portion H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. The opening of the recess 86A is provided on the second end H6 side of the hub shell H1 of the hub H with the disc brake rotor 10 attached to the hub H. In this case, the holding portion 86 is preferably formed of a material having a low magnetic permeability such as an aluminum alloy and a resin. In another example, the holding portion 86 is provided on the side of the hub H opposite to the second end portion H6 side of the hub shell H1 with the disc brake rotor 10 attached to the hub H. The opening of the recess 86A is provided on the side of the hub H opposite to the second end H6 side of the hub shell H1 with the disc brake rotor 10 attached to the hub H. When the holding portion 86 is formed of a material having a low magnetic permeability, the opening of the recess 86A may be formed on the inner or outer side in the radial direction, or on one side or the other side in the circumferential direction. The magnetic generator 24 is housed in the recess 86A. It is preferable that the entire magnetic generating portion 24 is housed in the recess 86A, but a part of the magnetic generating portion 24 may protrude from the recess 86A. The heat insulating portion 28 is arranged between the magnetic generating portion 24 and the holding portion 86, and suppresses heat transfer.

The first threaded portion 88A includes a male thread. The fourth threaded portion 86B includes a female thread. The engaging portion 88 penetrates the second through hole 22D from the opposite side of the holding portion 86 with the protruding portion 36 sandwiched in the axial direction, and the first screw portion 88A is screwed into the fourth screw portion 86B, whereby the mounting portion 84 Is fixed to the protrusion 36. The engaging portion 88 is formed by a bolt. The protruding portion 36 is sandwiched between the head of the bolt and the holding portion 86, and the movement of the holding portion 86 in the axial direction is restricted.

(Modification example)
The description of each of the above embodiments is an example of possible embodiments of a disc brake rotor adapter according to the present invention, a disc brake rotor including the adapter, and a magnetic generator, and is not intended to limit the embodiments. .. An adapter for a disc brake rotor according to the present invention, a disc brake rotor including this adapter, and a magnetic generator are, for example, a combination of a modification of each of the above embodiments shown below and at least two modifications that are consistent with each other. Can take the form of In the following modification, the parts common to the embodiments of each embodiment are designated by the same reference numerals as those of the embodiments, and the description thereof will be omitted.

The mounting portions 62 and 70 of the fifth to seventh embodiments can be attached to the adapter main body 22 of the first to fourth embodiments not including the through hole 22C. For example, as shown in FIG. 21, the mounting portion 62 is configured to surround an intermediate portion in the radial direction of one protruding portion 36 of the adapter body 22.

The mounting portion 84 shown in FIG. 20 can be changed to the mounting portion 90 including the ring-shaped base portion 92 shown in FIG. 22. The inner diameter of the base portion 92 is larger than the inner diameter of the inner peripheral portion 32 of the adapter main body 22 and the outer diameter of the fixing member R. The outer diameter of the base portion 92 is preferably selected so that the outer peripheral portion of the base portion 92 is arranged inside the joint portion 30 in the radial direction. The base portion 92 is preferably fixed to two or more protruding portions 36 by the engaging portions 88 shown in FIG. The magnetic generating unit 24 includes a plurality of permanent magnets 24A arranged at intervals in the circumferential direction of the base unit 92. The base portion 92 is provided with recesses 86A at intervals in the circumferential direction. A permanent magnet 24A is housed in each of the recesses 86A.

The mounting portion 90 is not detachably fixed to the adapter body 22 by the engaging portion 88, but is detachably attached to and detached from the adapter main body 22 by the engaging portion 66 similar to the fifth embodiment as shown in FIG. It may be fixed. A plurality of claws 66A protruding toward the adapter body 22 in the axial direction are provided on the surface of the base portion 92 on the adapter body 22 side. It is preferable that a plurality of pairs of claw portions 66A are provided. Each pair of claw portions 66A is configured to be fitted into one protruding portion 36.

The magnetic generation unit 94 shown in FIG. 22 can be changed to a magnetic generation unit 94 including a ring-shaped permanent magnet 94B in which a plurality of magnetic poles are arranged in the circumferential direction as shown in FIG. 24. In this case, the recess 86A of the base portion 92 is formed in an annular shape. When the base portion 92 of FIG. 23 is formed to include a magnetic material, the base portion 92 may be magnetized to form the magnetic generation portion 94.

The mounting portion 26 of the adapter body 22 may be provided on the protruding portion 36 as shown in FIGS. 25 and 26, instead of being provided between the two protruding portions 36 adjacent to each other in the circumferential direction. The mounting portion 26 is integrally formed with the protruding portion 36.

-In the first and third to eighth embodiments and each modification, the heat insulating portion 28 may be omitted.
A heat radiating portion may be provided on the adapter body 22 of each embodiment and each modification. The heat radiating section includes, for example, one or more fins. The heat radiating portion is preferably provided in the vicinity of the magnetic generating portion 24. For example, the heat radiating portion is provided on a surface opposite to the surface on which the magnetic generating portion 24 is provided in the axial direction, and is provided at a position overlapping the magnetic generating portion 24 when viewed from the axial direction.

The holding portion 50 of the third embodiment is provided on the side of the hub H opposite to the second end portion H6 of the hub shell H1 in a state where the disc brake rotor 10 is attached to the hub H as shown in FIG. You may. The opening of the recess 50A is formed on the side of the hub H opposite to the second end H6 side of the hub shell H1 with the disc brake rotor 10 attached to the hub H. The mounting portion 48 is inserted into the first hole 36A and fixed to the protruding portion 36. The second end portion 54B of the connecting portion 54 is located in the internal space of the recess 50A through the through hole 50B. The holding portion 50 is sandwiched between the portion of the second end portion 54B that is arranged in the internal space of the recess 50A and the protruding portion 36, and the holding portion 50 is supported.

The disc brake rotor 10 of each embodiment and the modified example may be changed to the disc brake rotor 10A of FIG. 28 in which the main body 12 and the adapters 20A to 20H are detachably configured. For example, the disc brake rotor 10A shown in FIG. 28 includes a plurality of through holes 102 in the main body 12. The through hole 102 is provided at a position corresponding to the first hole 36A (see FIG. 3). A first spacer S1 and a second spacer S2 are arranged between the fixing member R and the main body 12. The mounting portion 26 is formed integrally with the adapter main body 22. In another example, the mounting portion 26 is formed separately from the adapter body 22 and is detachably attached to the adapter body 22.

The mounting portion 42 of the second embodiment can be changed so as to be provided on the first side surface 110A of the disc brake rotor 110. For example, the disc brake rotor 110 shown in FIG. 29 includes a hub connection 112, a main body 114, and an arm 116. The hub connection portion 112 is for attaching to the hub H (see FIG. 2) of the bicycle. The arm 116 connects the hub connection portion 112 and the main body 114. The disc brake rotor 110 includes a plurality of arms 116. The combination of the hub connection portion 112 and the arm 116 includes the same structure as the adapters 20A to 20H of the above embodiment. The hub connection portion 112 corresponds to the inner peripheral portion 32 of the adapters 20A to 20H of the above embodiment, and the arm 116 corresponds to the protruding portion 36 of the outer peripheral portion 34 of the above embodiment. The main body 114 is arranged outside the hub connection portion 112 in the radial direction. The disc brake rotor 110 includes a first side surface 110A and a second side surface 110B. The second side surface 110B is a surface of the hub H that is closer to the second end portion H6 of the hub shell H1 with the disc brake rotor 110 attached to the hub H. The first side surface 110A is a surface opposite to the second side surface 110B in the axial direction. The main body 114 includes the same structure as the main body 12 of the disc brake rotor 10 of each of the above embodiments. In this modification, the hub connection portion 112 and the arm 116 may be formed integrally or separately. Further, the arm 116 and the main body 114 may be formed integrally or may be formed separately. As shown in FIG. 30, the magnetic generator 120 can be attached to the disc brake rotor 110. The magnetic generator 120 includes a magnetic generator 24, a holding portion 124, and a third mounting portion 126. The holding unit 124 holds the magnetic generating unit 24. The magnetic generating unit 24 is embedded in the holding unit 124. The third mounting portion 126 is formed integrally with the holding portion 124 and can be mounted on the first side surface 110A in the axial direction of the disc brake rotor 110. The holding portion 124 is formed of a material having a low magnetic permeability and contains, for example, a resin. The third attachment portion 126 is attached to the first side surface 110A by, for example, a bolt or an adhesive. The third mounting portion 126 is mounted on the main body 114 of the disc brake rotor 110.
The holding portion 124 is a space in which at least a part of the magnetic generating portion 24 is between the first side surface 110A and the adjacent arms 116 of the disc brake rotor 110 in a state where the third mounting portion 126 is mounted on the first side surface 110A. It is configured to project to 125. The third mounting portion 126 includes a first portion 126A and a second portion 126B. The first portion 126A is formed with a hole 127 in which a female screw is provided on the inner peripheral portion. The second portion 126B is provided with a holding portion 124 at an axial end. The holding portion 124 projects axially from the third mounting portion 126. In the example shown in FIG. 29, in a state where the third mounting portion 126 is mounted on the disc brake rotor 110, the first portion 126A is arranged on the outer portion in the radial direction of the third mounting portion 126 and is inside in the radial direction. The second portion 126B of the portion is arranged.

The third mounting portion 126 of FIG. 30 may be mounted on the adapter main body 22 of the first side surface 110A. For example, the hole 127 of the third mounting portion 126 penetrates in the axial direction. The holding portion 124 is fixed to the disc brake rotor 110 by inserting the bolt B1 into the hole 127 and fixing the bolt B1 to the screw hole formed in the adapter main body 22.

The mounting portion 42 of the second embodiment or the holding portion 124 shown in FIG. 29 may be attached to the disc brake rotor 10B shown in FIG. 31. The disc brake rotor 10A includes a plurality of first mounting portions 13A, a second mounting portion 13B, a magnetic generating portion 24, and a holding portion 124. The plurality of first mounting portions 13A can be mounted on the hub H of the bicycle by bolts B. The first mounting portion 13A penetrates in the axial direction. A female screw into which the male screw of the bolt B is screwed is formed in the protrusion H5 (see FIG. 2) of the hub H. The first mounting portion 13A includes a through hole. The first mounting portion 13A is provided at a position corresponding to the female screw formed on the protrusion H5 of the hub H of the disc brake rotor 10A. The second mounting portion 13B is provided at a position different from that of the first mounting portion 13A. The second mounting portion 13B includes a through hole penetrating in the axial direction. The holding portion 124 detachably attaches the magnetic generating portion 24 to the second mounting portion 13B. The holding portion 124 corresponds to a mounting portion. A second spacer S2 is arranged between the head portion of the bolt B and the disc brake rotor 10A. The holding portion 124 is detachably attached to the disc brake rotor 10B by the bolt B1 penetrating the second mounting portion 13B and screwing into the female screw of the third mounting portion 126 of the holding portion 124. In the example shown in FIG. 31, with the third mounting portion 126 mounted on the disc brake rotor 110, the first portion 126A is arranged on the outer portion in the radial direction of the third mounting portion 126 and is inside in the radial direction. The second portion 126B of the portion is arranged.

-The magnetic generators 24 and 94 of each embodiment may be configured to include an electromagnet in place of or in addition to a permanent magnet. In this case, the magnetic generators 24 and 94 may include a coil and a battery that supplies electric power to the coil. When the magnetic generators 24 and 94 include an electromagnet, a dynamo may be provided on the hub H to supply electric power from the dynamo.

-In the first to fifth embodiments and modifications, the recesses 38A, 44A, 50A, 58A, 64A, 86A are omitted, and the magnetic generating part 24 and the heat insulating part 28 are held, and the holding parts 38, 44, 50, 58, 64. , 86 can also be provided on the surface.

-In each embodiment and modification, the magnetic generators 24 and 94 may be embedded in the holding portions 38, 44, 50, 58, 64, 72 and 86. In this case, for example, the holding portions 38,44,50,58,64,72,86 are formed of a resin material, and the magnetic generating portions 24,94 and the holding portions 38,44,50,58,64,72,86 are formed. It is integrally molded.

-In each embodiment and modification, the magnetic generator 24 is housed in the recesses 38A, 44A, 50A, 58A, 64A, 76A, 86A, and is housed in the recesses 38A, 44A, 50A, 58A, 64A, 76A, 86A. It may be covered with a cover member so as not to be exposed from the opening of the. The cover member is made of a material with low magnetic permeability and includes, for example, a resin or an aluminum alloy. The cover member can be fixed to at least one of the adapter body 22 or the magnetic generator 24 by adhesion, welding, welding or screwing.

-In each embodiment and modification, the mounting portions 26, 42, 48, 56, 62, 70, 84, 90 are located between the main body 12 of the disc brake rotors 10 and 10A and the adapter main body 22, or the disc brake rotor. It may be arranged between the hub connection portion 112 of 110 and the hub H, or between the adapter main body 22 and the first end portion H4 of the hub H. In this case, a groove or a step is formed on the surface of the adapter body 22 on the hub H side, and the mounting portions 26, 42, 48, 56, 62, 70, 84, 90 are fitted into the groove or the step to fit the adapter body 22. The magnetic generators 24 and 94 are attached to 22.

H ... Hub, H3 ... 1st spline, R ... Fixing member 10, 10A, 10B, 110 ... Disc brake rotor, 12 ... Main body, 12B ... 2nd hole, 20A, 20B, 20C, 20D, 20E, 20F, 20G , 20H ... Adapter, 22 ... Adapter body, 22B ... Second screw part, 22D ... Second through hole, 32 ... Inner circumference part, 32A ... Second spline, 34 ... Outer part, 36 ... Protruding part, 36A ... First Holes, 24,94 ... Magnetic generators, 24A, 94A ... Permanent magnets, 26,42,48,56,62,70,84,90 ... Mounting parts, 38,44,50,58,64,72,80, 86, 124 ... Holding part, 46, 60, 66, 68, 74, 88 ... Engaging part, 28 ... Insulation part, 54 ... Connecting part, 60A, 74A, 88A ... First screw part, 76B ... First through hole , 78A ... 3rd screw part, 86B ... 4th screw part, 92 ... Base part.

Claims (21)

A magnetic generator that can be attached to an adapter for attaching a disc brake rotor to a bicycle hub.
With the magnetic generator
A holding portion including a first portion and a second portion is provided.
The first portion supports the magnetic generating portion and supports the magnetic generating portion.
The second portion is attached to the first portion in a state where the magnetic generator is attached to the adapter and a part of the adapter is arranged between the first portion and the second portion. A magnetic generator. The magnetic generator according to claim 1, wherein the first portion includes an opening provided with the magnetic generator. The opening is, in a state where the magnetic generator is attached to the adapter, one of the axial directions of the disc brake rotor, the other of the axial direction of the disc brake rotor, and the inside of the radial direction of the disc brake rotor. The magnetic generator according to claim 2, which opens outside in the radial direction of the disc brake rotor, one in the circumferential direction of the disc brake rotor, or the other in the circumferential direction of the disc brake rotor . The magnetic generator according to any one of claims 1 to 3, further comprising a first engaging portion attached to the first portion and the second portion. The magnetic generator according to claim 4, wherein the first engaging portion includes a bolt. The magnetic generator according to claim 4 or 5, wherein the first portion includes a through hole through which the first engaging portion penetrates. Further including a second engaging portion attached to the first portion and the second portion.
The magnetic generator according to any one of claims 4 to 6, wherein the magnetic generator is provided between the first engagement portion and the second engagement portion. The magnetic generator according to claim 7, wherein the second engaging portion includes a bolt. The first portion includes a first through hole through which the first engaging portion penetrates and a second through hole through which the second engaging portion penetrates.
The magnetic generator according to claim 7 or 8, wherein the second portion includes a first opening aligned with the first through hole and a second opening aligned with the second through hole. The first opening includes a threaded portion that engages with the first engaging portion.
The magnetic generator according to claim 9, wherein the second opening includes a threaded portion that engages with the second engaging portion. In the state where the magnetic generator is attached to the adapter, the first engaging portion and the second engaging portion have a protruding portion extending in the radial direction of the adapter with the first engaging portion and the second engaging portion. The magnetic generator according to any one of claims 7 to 10, which is arranged at a position sandwiched between the joint portion and the joint portion. The magnetic generator according to claim 11, wherein the magnetic generator is aligned with the protruding portion in the axial direction of the adapter when the magnetic generator is attached to the adapter. 1. The first portion and the second portion are configured to be attached to the adapter regardless of the fixing function of the fixing member configured to fix the adapter to the hub of the bicycle. The magnetic generator according to any one of 12 to 12. The magnetic generator according to any one of claims 1 to 13, wherein the first portion and the second portion are detachably configured to be attached to and detached from the adapter. A magnetic generator that can be attached to an adapter for attaching a disc brake rotor to a bicycle hub.
With the magnetic generator
A mounting portion that supports the magnetic generating portion and
A magnetic generator including an engaging portion configured to fix the mounting portion to a part of the adapter when the magnetic generator is mounted on the adapter. The magnetic generator according to claim 15, wherein the magnetic generator includes a plurality of permanent magnets provided in the mounting portion at intervals in the circumferential direction. The magnetic generator according to claim 15 or 16, wherein the mounting portion includes an opening provided with the magnetic generator. The opening is, in a state where the magnetic generator is attached to the adapter, one of the axial directions of the disc brake rotor, the other of the axial direction of the disc brake rotor, and the inside of the radial direction of the disc brake rotor. The magnetic generator according to claim 17, which opens outside in the radial direction of the disc brake rotor, one in the circumferential direction of the disc brake rotor, or the other in the circumferential direction of the disc brake rotor . The magnetic generator according to any one of claims 15 to 18, wherein the engaging portion includes a bolt. The magnetic generator according to any one of claims 15 to 19, wherein the mounting portion includes a through hole through which the engaging portion penetrates. The magnetic generator according to any one of claims 1 to 20, wherein the magnetic generator includes at least one permanent magnet.