WO2023032533A1 - 自転車用チェーン及び自転車用チェーンの連結ピン部材 - Google Patents
自転車用チェーン及び自転車用チェーンの連結ピン部材 Download PDFInfo
- Publication number
- WO2023032533A1 WO2023032533A1 PCT/JP2022/029068 JP2022029068W WO2023032533A1 WO 2023032533 A1 WO2023032533 A1 WO 2023032533A1 JP 2022029068 W JP2022029068 W JP 2022029068W WO 2023032533 A1 WO2023032533 A1 WO 2023032533A1
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- WO
- WIPO (PCT)
- Prior art keywords
- bicycle chain
- pin portion
- connecting pin
- pin
- outer plate
- Prior art date
Links
- 239000003094 microcapsule Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 241000219122 Cucurbita Species 0.000 description 2
- 235000009852 Cucurbita pepo Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
Definitions
- the present invention relates to a bicycle chain and a connecting pin member for the bicycle chain.
- a bicycle chain meshes with the front sprocket provided on the gear crank of the bicycle and the rear sprocket provided on the rear wheel hub, and transmits the pedal force to the rear wheel hub via the gear crank.
- the chain includes an outer link portion having a pair of outer plate portions, an inner link portion having a pair of inner plate portions spaced apart from each other so as to partially overlap the inner side of the outer plate portion, and both links. and a roller portion arranged on the outer peripheral side of the connecting pin portion.
- the connecting pin portion has an intermediate portion and bulging portions which are formed by caulking on both end sides of the intermediate portion and engage with the outer surface of the outer plate portion.
- Patent Document 1 a large number of inner plates and outer plates are arranged alternately so that their ends overlap, and the ends of the inner plates and the ends of the outer plates are connected by chain pins.
- a short tubular roller is loosely fitted to the outer periphery of the chain pin, and the axial end of the inner peripheral surface of the roller is formed as a tapered surface that increases in diameter toward the open end surface.
- a bicycle chain is disclosed.
- An object of the present invention is to provide a bicycle chain and a connecting member for a bicycle chain that allow easy maintenance.
- a bicycle chain according to the present invention comprises an outer link portion having a pair of outer plate portions arranged facing each other at a predetermined interval; an inner link portion having a pair of inner plate portions disposed so as to partially overlap with each other; and an overlap between the outer plate portion and the inner plate portion to connect the outer plate portion and the inner plate portion. and a roller portion arranged inside the pair of inner plate portions and rotatable around the axis of the connecting pin portion, wherein the connecting pin portion has a first pin portion including a recess in which a helical screw thread is formed, and a second pin portion including a protrusion screwed into the recess of the first pin portion.
- the second pin portion has a head portion having a tool hole for rotating the protrusion portion so as to screw the protrusion portion into the recess portion.
- the second pin portion has a head portion having a tool hole for rotating the protrusion portion so as to screw the protrusion portion into the recess portion.
- a head portion having a tool hole for rotating the protrusion portion so as to screw the protrusion portion into the recess portion.
- the concave portion preferably has a hole along the outer shape of the head portion.
- the bicycle chain according to the present invention it is preferable that at least a portion of the first pin portion and the second pin portion contactable with the outer link portion is knurled.
- a microcapsule portion containing a liquid or solid adhesive base agent or curing agent for fixing the first pin portion and the second pin portion in a connected state is provided. It is preferable to have
- a connecting pin member for a bicycle chain is provided with an outer link portion having a pair of outer plate portions facing each other with a predetermined interval, and provided inside the pair of outer plate portions, and an inner link portion having a pair of inner plate portions arranged so as to partially overlap with a pair of outer plate portions, wherein the outer plate portion and the inner plate are provided.
- a connecting pin portion penetrating through a through-hole portion formed in an overlapping portion of the outer plate portion and the inner plate portion to connect the portions, and the connecting pin portion is formed with a helical screw thread; It is characterized by having a first pin portion including a concave portion and a second pin portion including a convex portion screwed into the concave portion of the first pin portion.
- the second pin portion has a head portion having a tool hole for rotating the projection to screw the projection into the recess.
- the head has a substantially columnar shape, and the recess has a hole along the outer shape of the head.
- the second pin portion has a head portion having a tool hole for rotating the projection to screw the projection into the recess.
- the head has a substantially truncated cone shape that tapers toward the convex portion, and the recess has a hole along the outer shape of the head.
- the first pin portion and the second pin portion are knurled on at least a portion thereof that can come into contact with the outer link portion. is preferred.
- a liquid or solid adhesive main agent or curing agent is included to fix the first pin portion and the second pin portion in a connected state. It is preferable to have a microcapsule portion.
- the connecting pin portion can be removed by attaching a screwdriver to the tool hole of the connecting pin portion and rotating it. This allows easy maintenance.
- FIG. 4 is a view showing a bicycle chain that is a modified example of the bicycle chain of the embodiment according to the present invention
- FIG. 4 is a view showing a bicycle chain that is a modified example of the bicycle chain of the embodiment according to the present invention
- FIG. 1 is a diagram showing a bicycle chain 10 according to an embodiment of the invention.
- a bicycle is equipped with a bicycle frame, front and rear wheels rotatably mounted on the bicycle frame, and a drive unit for driving the rear wheels with legs.
- the drive section is described as having multi-stage gears, but it is of course applicable to bicycles that do not have multi-stage gears.
- the driving part includes a gear crank part having a front sprocket rotatably attached to the middle lower part of the bicycle frame, a multi-stage gear having a rear sprocket attached to the rear wheel, and a front sprocket of the gear crank part and the multi-stage gear. It has a bicycle chain 10 wrapped around either of the rear sprockets and front and rear derailleurs for winding the bicycle chain 10 around either sprocket.
- a pedal is rotatably attached to the gear crank, and the bicycle moves by pedaling.
- the bicycle chain 10 includes outer link portions 12, inner link portions 14 alternately arranged with the outer link portions 12, connecting pin portions 18 connecting the outer link portions 12 and the inner link portions 14, and inner link portions. 14 and a roller portion 16 rotatable around the axis of the connecting pin portion 18 .
- the outer link portion 12 has a pair of outer plate portions 12a arranged facing each other with a space therebetween, and a first through hole portion 12b formed in the pair of outer plate portions 12a.
- the inner diameter of the first through hole portion 12 b is larger than the diameter of the connecting pin portion 18 . This allows the connecting pin portion 18 to easily pass through the first through hole portion 12b.
- the outer plate portion 12a is a plate-like member formed by punching a steel plate having a predetermined thickness into a circular gourd shape at both ends.
- the inner link portion 14 includes a pair of inner plate portions 14a that are spaced apart from each other so as to partially overlap the inner side of the pair of outer plate portions 12a, and first link portions 14a that are provided at both ends of the pair of inner plate portions 14a. It has a second through hole portion 14b having substantially the same diameter as the through hole portion 12b.
- the inner plate portion 14a has a shape similar to that of the outer plate portion 12a, and is a plate-like member formed by punching a steel plate into a circular gourd shape at both ends.
- the inner diameter of the second through hole portion 14 b is larger than the diameter of the connecting pin portion 18 . This allows the connecting pin portion 18 to easily pass through the second through hole portion 14b.
- the connecting pin portion 18 is formed in the overlapping portion of the outer plate portion 12a and the inner plate portion 14a to connect the outer plate portion 12a and the inner plate portion 14a, and is formed in the first through hole portion 12b and the second through hole portion 14b. It penetrates through the through-hole portion 13 composed of.
- the connecting pin portion 18 is a rod-shaped member whose surface is made of special steel and is hardened to improve wear resistance.
- the connecting pin portion 18 has a diameter larger than the inner diameters of the first through-hole portion 12b and the second through-hole portion 14b, and extends through the first through-hole portion 12b and the second through-hole portion 14b to connect the outer link portion 12 and the inner link. It connects with the part 14 .
- the connecting pin portion 18 includes a first pin portion 20 including a recessed portion 24 in which a helical thread is formed, and a second pin portion 22 including a convex portion 28 screwed into the recessed portion 24 of the first pin portion 20. have.
- the first pin portion 20 has a concave portion 24 having a screw thread into which the convex portion 28 of the second pin portion is screwed in the central portion of the cylindrical member. Further, the first pin portion 20 is formed with a tool hole 21 for rotating the concave portion 24 so as to screw the concave portion 24 and the convex portion 28 together. An engaging portion 25 for engaging with the outer plate portion 12a is formed at the end of the cylindrical member. The recess 24 has a cylindrical hole along the contour of the head 26 .
- the second pin portion 22 includes a head 26 having a tool hole 23 for rotating the protrusion 28 to thread the protrusion 28 into the recess 24 , the head 26 being identical to the first pin portion 20 . , and an engaging portion 27 for engaging with the outer plate portion 12a is formed at the end.
- the tool holes 21 and 23 have a shape that can be joined to a hexagonal allen key or the like.
- the roller portion 16 is arranged between the pair of inner plate portions 14 a on the outer peripheral side of the cylindrical portion and is rotatable around the axis of the connecting pin portion 18 .
- the roller portion 16 is rotatably supported on the outer peripheral surface of the cylindrical portion.
- a connecting pin is inserted into the through-hole portion 13 formed in the overlapping portion of the outer plate portion 12a and the inner plate portion 14a and configured by the first through-hole portion 12b and the second through-hole portion 14b.
- a case of removing the connecting pin portion 18 from the state in which the portion 18 is inserted will be described.
- Two hexagonal allen keys are connected to the tool hole 21 of the first pin portion 20 and the tool hole 23 of the second pin portion 22. Then, the hexagonal allen key is rotated so as to release the threaded state of the concave portion 24 and the convex portion 28 .
- the first pin portion 20 and the second pin portion are formed in the through hole portion 13 formed in the overlapping portion of the outer plate portion 12a and the inner plate portion 14a. 22 is inserted.
- the first pin portion 20 and the second pin portion 22 can be connected or disconnected by rotating the first pin portion 20 and the second pin portion 22 using two hexagonal allen keys. , there is an advantage that maintenance of the bicycle chain 10 can be easily performed even by an operator who is not highly skilled.
- the length of the pins that connect the outer and inner links may also differ.
- the bicycle chain 10 by changing the threaded state of the first pin portion 20 and the second pin portion 22, the size can be changed, and the length of the connecting pin can be freely changed. It has a remarkable effect that it can correspond to a chain of various standards.
- the length of the connecting pin changes depending on whether only the tip portions of the first pin portion 20 and the second pin portion 22 are screwed together and when the root portions are screwed together.
- FIG. 2 is a diagram showing a bicycle chain 11 according to an embodiment of the invention.
- connection pin portion 30 The only difference between the bicycle chain 10 and the bicycle chain 11 is the connection pin portion 30, and the rest of the structure is the same.
- the connecting pin portion 30 is formed in the overlapping portion of the outer plate portion 12a and the inner plate portion 14a to connect the outer plate portion 12a and the inner plate portion 14a, and is formed in the first through hole portion 12b and the second through hole portion 14b. It penetrates through the through-hole portion 13 composed of.
- the connecting pin portion 30 is a rod-shaped member whose surface is made of special steel and is hardened to improve wear resistance.
- the connecting pin portion 30 has a diameter larger than the inner diameters of the first through-hole portion 12b and the second through-hole portion 14b, and extends through the first through-hole portion 12b and the second through-hole portion 14b to connect the outer link portion 12 and the inner link. It connects with the part 14 .
- the connecting pin portion 30 includes a first pin portion 32 including a recessed portion 36 in which a helical thread is formed, and a second pin portion 34 including a convex portion 38 screwed into the recessed portion 36 of the first pin portion 32. have.
- the first pin portion 32 has a concave portion 36 having a screw thread with which the convex portion 38 of the second pin portion 34 is screwed in the central portion of the cylindrical member. Further, the first pin portion 32 is formed with a tool hole 33 for rotating the concave portion 36 so as to screw the concave portion 36 and the convex portion 38 together.
- An engaging portion 31 for engaging with the outer plate portion 12a is formed at the end of the cylindrical member.
- the recess 36 has a substantially truncated conical hole along the outer shape of the head 40 .
- the second pin portion 34 includes a head 40 having a tool hole 35 for rotating the protrusion 38 to thread the protrusion 38 into the recess 36 , the head 40 facing toward the protrusion 38 . It has a substantially tapered truncated cone shape, and an engaging portion 37 for engaging with the outer plate portion 12a is formed at the end. Note that the tool holes 33 and 35 have a shape that can be joined to a hexagonal allen key or the like.
- a connecting pin is inserted into the through-hole portion 13 formed in the overlapping portion of the outer plate portion 12a and the inner plate portion 14a and configured by the first through-hole portion 12b and the second through-hole portion 14b.
- a case of removing the connecting pin portion 30 from the state in which the portion 30 is inserted will be described.
- Two hexagonal allen keys are connected to the tool hole 33 of the first pin portion 32 and the tool hole 35 of the second pin portion 34. Then, the hexagonal allen key is rotated so as to release the threaded state of the recessed portion 36 and the projected portion 38 .
- the first pin portion 32 and the second pin portion are formed in the through hole portion 13 formed in the overlapping portion of the outer plate portion 12a and the inner plate portion 14a. 34 is inserted.
- the first pin portion 32 and the second pin portion 34 can be connected or disconnected by rotating the first pin portion 32 and the second pin portion 34 using two hexagonal allen keys. , there is an advantage that maintenance of the bicycle chain 11 can be easily performed.
- the connecting pin portion 30 has a substantially truncated conical shape with a tapered head portion 40, and has a large frictional force with the concave portion 36, so there is an advantage that it is difficult to fall off.
- the use of the connecting pin portions 18, 30 allows the outer plate portion 12a and the inner plate portion 14a to be easily connected and detached. Therefore, similar effects can be obtained by using the connecting pin portions 18 and 30 as connecting members for a conventional bicycle chain.
- FIG. 3 shows a bicycle chain 50 according to an embodiment of the invention.
- the outer link portion 15 has a pair of outer plate portions 15a arranged facing each other with a space therebetween, and a first through hole portion 15b formed in the pair of outer plate portions 15a.
- the inner diameter of the first through hole portion 15 b is larger than the diameter of the connecting pin portion 54 . This allows the connecting pin portion 54 to easily pass through the first through hole portion 15b.
- the outer plate portion 15a is a plate-like member formed by punching a steel plate having a predetermined thickness into circular gourd-shaped ends. Note that, unlike the outer plate portion 12a, the outer plate portion 15a is formed with a concave portion for engaging the engaging portion 67 of the connecting pin portion 54, and has a stepped shape in the view shown in FIG. 3(a). It has become.
- the connecting pin portion 54 is formed in the overlapping portion of the outer plate portion 15a and the inner plate portion 14a to connect the outer plate portion 15a and the inner plate portion 14a, and is formed in the first through hole portion 15b and the second through hole portion 14b. It penetrates through the through-hole portion 17 composed of.
- the connecting pin portion 54 is a rod-shaped member whose surface is made of special steel and is hardened to improve wear resistance.
- the connecting pin portion 54 has a diameter larger than the inner diameters of the first through-hole portion 15b and the second through-hole portion 14b, and extends through the first through-hole portion 15b and the second through-hole portion 14b to connect the outer link portion 15 and the inner link. It connects with the part 14 .
- the connecting pin portion 54 includes a first pin portion 58 including a recessed portion 56 in which a helical thread is formed, and a second pin portion 62 including a convex portion 60 screwed into the recessed portion 56 of the first pin portion 58.
- the protruding portion 60 has a slightly larger diameter at a portion closer to the tool hole 66 side than the tip side, forming a step.
- the first pin portion 58 has a concave portion 56 having a screw thread with which the convex portion 60 of the second pin portion 62 is screwed in the central portion of the cylindrical member. Further, the first pin portion 58 is formed with a tool hole 64 for rotating the concave portion 56 so as to screw the concave portion 56 and the convex portion 60 together. An engaging portion 65 for engaging with the outer plate portion 15a is formed at the end of this columnar member. The diameter of the concave portion 56 is larger on the tip side located on the side opposite to the tool hole 64 than on the root side (tool hole 64 side) so as to follow the shape of the convex portion 60 . By providing such a step, there is an advantage that the strength when tightening is increased.
- the second pin portion 62 is formed with a tool hole 66 for rotating the convex portion 60 so as to screw the convex portion 60 into the concave portion 56 .
- An engaging portion 67 for engaging with the outer plate portion 15a is formed at this end portion.
- the tool holes 64 and 66 have a shape that can be joined to a hexagonal allen key or the like.
- the first pin portion 58 and the second pin portion 62 are knurled at portions that can come into contact with the outer plate portion 15a of the outer link portion 15. As shown in FIG. Knurling is the process of making fine irregularities and cuts in metals and resins.
- Knurling is roughly divided into two types: twill pattern and flat pattern.
- twill pattern There are various shapes such as pitch, groove depth, and line angle, such as square and diagonal.
- the tip portion of the uneven portion is processed to be sharp, the knurled portion has a shape that sticks when it comes into contact with the outer plate portion 15a.
- the outer link portion 54 contacts the outer link portion 15, and when the connecting pin portion 54 presses the outer link portion 15, the outer link portion 15 is knurled as described above. It is preferable that the hardness of the connecting pin portion 54 is higher than that of the outer plate portion 15a. As the pressing force increases, the amount of the knurled portion of the connecting pin portion 54 that bites into the outer link portion 15 increases.
- the bicycle chain 50 has a microcapsule portion 52 .
- the microcapsule portion 52 is an adhesive that contains a liquid or solid adhesive main agent or curing agent and fixes the first pin portion 58 and the second pin portion 62 in a connected state.
- the microcapsule part 52 is literally a minute container with a wall made of a polymer or a film-forming substance and covered with a liquid or solid core substance. It is
- the microcapsule part 52 is adjusted in advance so that the wall film can be destroyed by a desired means such as pressure, heat, light, acid, or chemical, and the core substance can be taken out.
- the core substance can be gradually released from fine pores in the wall membrane without destroying the wall membrane.
- it is adjusted so that the core substance is taken out by the pressure generated when the first pin portion 58 and the second pin portion 62 are screwed together.
- the operation of the bicycle chain 50 configured as described above will be described.
- the connecting pin portion 54 the first pin portion 58 and the second pin portion 62 are inserted into the through hole portion 17 formed in the overlapping portion of the outer plate portion 15a and the inner plate portion 14a.
- the microcapsule portion 52 is inserted between the first pin portion 58 and the second pin portion 62 .
- the force applied when the first pin portion 58 and the second pin portion 62 are connected causes the core substance of the microcapsule portion 52 to be taken out and attached to the first pin portion 58 and the second pin portion 62. , and when this is hardened, the first pin portion 58 and the second pin portion 62 are fixed in a connected state.
- the knurling of the connecting pin portion 54 is shaped so that it will stick when it comes into contact with the outer plate portion 15a. As a result, it is possible to prevent the connecting pin portion 52 from rotating. Since the connecting pin portion 52 is easily worn when it rotates, there is an advantage that the life of the bicycle chain 50 can be extended by suppressing the rotation.
- Reference Signs List 10 11, 50 bicycle chain 12, 15 outer link portion 12a, 15a outer plate portion 12b, 15b first through hole portion 13, 17 through hole portion 14 inner link portion 14a inner plate portion 14b second through hole portion 16 roller portion 18,54 connecting pin portion 20,58 first pin portion 21,23 tool hole 22,62 second pin portion 24,56 recessed portion 25 engaging portion 26 head 27,67 engaging portion 28,60 convex portion 30 connecting pin portion 31,65 engaging portion 32 first pin portion 34 second pin portion 33,35,64,65 tool hole, 36 concave portion, 37 engaging portion, 38 convex portion, 40 head portion, 52 microcapsule portion.
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Abstract
Description
Claims (10)
- 所定の間隔を隔てて対向して配置された一対の外側プレート部を有する外側リンク部と、
前記一対の外側プレート部の内側に設けられ、前記一対の外側プレート部に一部が重複するように配置された一対の内側プレート部を有する内側リンク部と、
前記外側プレート部と前記内側プレート部を連結するために前記外側プレート部と前記内側プレート部との重複部分に形成される貫通孔部を貫通する連結ピン部と、
前記一対の内側プレート部の内側に配置され、前記連結ピン部の軸回りに回転自在なローラ部と、
を備え、
前記連結ピン部は、
螺旋状の螺子山が形成される凹部を含む第1ピン部と、
前記第1ピン部の前記凹部に螺合する凸部を含む第2ピン部とを有することを特徴とする自転車用チェーン。 - 請求項1に記載の自転車用チェーンにおいて、
前記第2ピン部は、前記凸部を前記凹部に螺合させるために前記凸部を回転させるための工具穴を有する頭部を備え、
前記頭部は、略円柱形状を有しており、
前記凹部は、前記頭部の外形に沿った孔部を有することを特徴とする自転車用チェーン。 - 請求項1に記載の自転車用チェーンにおいて、
前記第2ピン部は、前記凸部を前記凹部に螺合させるために前記凸部を回転させるための工具穴を有する頭部を備え、
前記頭部は、前記凸部側に向かって先細りとなる略円錐台形状を有しており、
前記凹部は、前記頭部の外形に沿った孔部を有することを特徴とする自転車用チェーン。 - 請求項1に記載の自転車用チェーンにおいて、
前記第1ピン部及び前記第2ピン部は、前記外側リンク部と接触可能な少なくとも一部の部位にローレット加工が施されていることを特徴とする自転車用チェーン。 - 請求項1に記載の自転車用チェーンにおいて、
液体又は固体の接着主剤又は硬化剤を内包し、前記第1ピン部と前記第2ピン部とが連結された状態で固定するためのマイクロカプセル部を備えることを特徴とする自転車用チェーン。 - 所定の間隔を隔てて対向して配置された一対の外側プレート部を有する外側リンク部と、
前記一対の外側プレート部の内側に設けられ、前記一対の外側プレート部に一部が重複するように配置された一対の内側プレート部を有する内側リンク部と、
とを備える自転車用チェーンの連結ピン部材であって、
前記外側プレート部と前記内側プレート部を連結するために前記外側プレート部と前記内側プレート部との重複部分に形成される貫通孔部を貫通する連結ピン部を備え、
前記連結ピン部は、
螺旋状の螺子山が形成される凹部を含む第1ピン部と、
前記第1ピン部の前記凹部に螺合する凸部を含む第2ピン部とを有することを特徴とする自転車用チェーンの連結ピン部材。 - 請求項6に記載の自転車用チェーンの連結ピン部材において、
前記第2ピン部は、前記凸部を前記凹部に螺合させるために前記凸部を回転させるための工具穴を有する頭部を備え、
前記頭部は、略円柱形状を有しており、
前記凹部は、前記頭部の外形に沿った孔部を有することを特徴とする自転車用チェーンの連結ピン部材。 - 請求項6に記載の自転車用チェーンの連結ピン部材において、
前記第2ピン部は、前記凸部を前記凹部に螺合させるために前記凸部を回転させるための工具穴を有する頭部を備え、
前記頭部は、前記凸部側に向かって先細りとなる略円錐台形状を有しており、
前記凹部は、前記頭部の外形に沿った孔部を有することを特徴とする自転車用チェーンの連結ピン部材。 - 請求項6に記載の自転車用チェーンの連結ピン部材において、
前記第1ピン部及び前記第2ピン部は、前記外側リンク部と接触可能な少なくとも一部の部位にローレット加工が施されていることを特徴とする自転車用チェーンの連結ピン部材。 - 請求項6に記載の自転車用チェーンの連結ピン部材において、
液体又は固体の接着主剤又は硬化剤を内包し、前記第1ピン部と前記第2ピン部とが連結された状態で固定するためのマイクロカプセル部を備えることいることを特徴とする自転車用チェーンの連結ピン部材。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2023545163A JP7485436B2 (ja) | 2021-09-03 | 2022-07-28 | 自転車用チェーン及び自転車用チェーンの連結ピン部材 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5376055A (en) * | 1993-07-29 | 1994-12-27 | Bauman; Robert C. | Transmission chain with readily engageable connecting pin |
US20050164816A1 (en) * | 2004-01-26 | 2005-07-28 | Wen-Pin Wang | Chain connecting device |
JP3135968U (ja) | 2007-07-24 | 2007-10-04 | 天心工業股▲ふん▼有限公司 | 自転車用チェーン |
JP2009257587A (ja) * | 2008-04-15 | 2009-11-05 | Campagnolo Spa | 自転車用のチェーンに用いられる関節ピンおよび該チェーン |
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- 2022-07-28 JP JP2023545163A patent/JP7485436B2/ja active Active
- 2022-07-28 WO PCT/JP2022/029068 patent/WO2023032533A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5376055A (en) * | 1993-07-29 | 1994-12-27 | Bauman; Robert C. | Transmission chain with readily engageable connecting pin |
US20050164816A1 (en) * | 2004-01-26 | 2005-07-28 | Wen-Pin Wang | Chain connecting device |
JP3135968U (ja) | 2007-07-24 | 2007-10-04 | 天心工業股▲ふん▼有限公司 | 自転車用チェーン |
JP2009257587A (ja) * | 2008-04-15 | 2009-11-05 | Campagnolo Spa | 自転車用のチェーンに用いられる関節ピンおよび該チェーン |
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JP7485436B2 (ja) | 2024-05-16 |
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