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WO2020067159A1 - Dispositif de câble et son procédé de fabrication - Google Patents

Dispositif de câble et son procédé de fabrication Download PDF

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Publication number
WO2020067159A1
WO2020067159A1 PCT/JP2019/037605 JP2019037605W WO2020067159A1 WO 2020067159 A1 WO2020067159 A1 WO 2020067159A1 JP 2019037605 W JP2019037605 W JP 2019037605W WO 2020067159 A1 WO2020067159 A1 WO 2020067159A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
cable
end piece
outer cable
shield
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/037605
Other languages
English (en)
Japanese (ja)
Inventor
啓太 浅野
恵美 小野口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamato Industrial Co Ltd
Yamato Industry Co Ltd
Original Assignee
Yamato Industrial Co Ltd
Yamato Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamato Industrial Co Ltd, Yamato Industry Co Ltd filed Critical Yamato Industrial Co Ltd
Publication of WO2020067159A1 publication Critical patent/WO2020067159A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/10—Means for transmitting linear movement in a flexible sheathing, e.g. "Bowden-mechanisms"
    • F16C1/12—Arrangements for transmitting movement to or from the flexible member
    • F16C1/14—Construction of the end-piece of the flexible member; Attachment thereof to the flexible member
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/26—Construction of guiding-sheathings or guiding-tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
    • B62K23/02—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips hand actuated
    • B62K23/04—Twist grips

Definitions

  • the present invention provides a cable device, particularly an inner wire, and an outer cable through which the inner wire is slidably inserted.
  • the present invention relates to a cable device in which certain cylindrical end pieces are connected, and a method for manufacturing the cable device.
  • the cable device is already known as disclosed in Patent Document 1.
  • a cylindrical metal stopper ring fitted around the outer end of the outer cable is fixed to the end of the outer cable by caulking, and the end of the outer cable including the stopper ring is fixed.
  • the stopper ring By crimping the end of the end piece in a state of being inserted into the end piece, the stopper ring (and thus the end of the outer cable) is engaged with the end of the end piece so as to be relatively rotatable and immovable relative to the axial direction. I have to.
  • the stopper ring is basically cylindrical, and has a problem that the degree of freedom of the shape is narrow and the shape cannot be easily changed.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a cable device and a method of manufacturing the same that can solve the above-described various problems at once with a simple structure.
  • the present invention provides a flexible Bowden cable having an inner wire and an outer cable through which the inner wire is slidably inserted, at least one end of the outer cable having at least one end.
  • the outer cable is a synthetic resin liner that directly guides the sliding of the inner wire, and a hollow metal line that houses and holds the liner.
  • a shield comprising a shield and a synthetic resin sheath covering the outer periphery of the shield, wherein the outer cable is insert-molded so as to cover and fix the outer periphery of the end portion, and is relatively rotated around the inner periphery of the end piece.
  • a cap made of synthetic resin which is fitted so that the end piece can be formed by caulking.
  • An engaging portion engaged with the engaging portion so as to be rotatable relative to the axial direction and immovable relative to the axial direction, and for preventing the metal member constituting the shield from being exposed from the outer cover;
  • a first feature is that the locking portion is embedded in the constituent resin material of the cap together with the insert molding.
  • relative movement in the axial direction means that the relative movement in the axial direction is not possible in a strict sense (that is, there is no backlash in the axial direction). This concept includes a case where relative movement is allowed within a certain play range (that is, there is some play in the axial direction).
  • the present invention is characterized in that, in addition to the first feature, a second feature is that a part of the cap is exposed from the end piece.
  • one end of a reinforcing boot for increasing a bending rigidity of a portion of the outer cable extending from the cap is provided on an exposed portion of the cap exposed from the end piece.
  • a third feature is that a locking portion for a boot that can lock the portion is integrally formed, and the other end of the boot is supported by the portion of the outer cable.
  • a cable connecting member for connecting an end of the outer cable to another member via the cap is provided on an exposed portion of the cap exposed from the end piece.
  • a fourth feature is that they are integrally formed.
  • a bent tube portion that covers and supports an intermediate bent portion that is continuous with the end portion of the outer cable is integrally connected to the cap.
  • a fifth feature is that the bent tube portion is insert-molded together with the cap.
  • the present invention is also a method for manufacturing a cable device having any one of the first to fifth features, wherein the shield is formed such that a plurality of metal wires as the metal member are closely attached to each other around the liner. Before the insert molding, the ends of the hollow strands are exposed from the outer cover and the diameter thereof is increased, so that the metal strands are discrete and the retaining members are formed before the insert molding.
  • a sixth feature is that the cap is insert-molded so as to surround the first flare portion, and a resin material of the cap is inserted between the metal wires. I do.
  • a seventh feature is that the cap is insert-molded so as to also cover the second flare portion.
  • a cable device includes a synthetic resin cap that is insert-molded so as to cover and fix an end portion of an outer cable and that is relatively rotatably fitted to an inner peripheral portion of an end piece.
  • the cap has an engaging portion that is caulked to the end piece and an engaged portion that is engaged with the end portion so as to be relatively rotatable and axially relatively immovable.
  • the cap and outer cable are provided because the retaining portion, which is constructed by exposing it from the synthetic resin outer shell, is embedded in the constituent resin material of the cap together with insert molding and cuts into the resin material to exert an anchoring effect.
  • the end portion can be firmly connected.
  • the insert molded cap not only has a high degree of freedom in selecting the constituent material (synthetic resin), but also has a high degree of freedom in selecting the shape of each part including the engaged part. Accordingly, it is possible to easily design an optimum material and shape structure, and the degree of design freedom can be increased.
  • the color tone of the exposed portion can be easily changed by selecting the material of the cap.
  • the type of the Bowden cable, the installation destination, and the like can be easily determined by the operator from the color tone of the cap, which can contribute to the prevention of erroneous assembly and the improvement of the assembly workability.
  • the integration of the boot mounting locking portion with the cap improves the formability and workability of the locking portion.
  • the cap to be crimped to the end piece also serves as the boot locking means, it can contribute to the simplification of the structure.
  • the cable connecting member for connecting the outer cable to another member via the cap is integrated with the cap, so that the formability and workability of the cable connecting member are improved.
  • the cap to be crimped to the end piece also serves as a support base for the cable connecting member, it is possible to contribute to the simplification of the structure.
  • the bent tube portion covering and supporting the intermediate bent portion continuous to the end of the outer cable can be insert-molded together with the cap, and can be integrated with the cap. Formability and mountability can be improved.
  • the cap to be crimped and connected to the end piece and the bent pipe portion supporting the intermediate bent portion of the outer cable can be made into a single component, and the handling is simplified.
  • the shield is constituted by a hollow strand formed by arranging and twisting a plurality of metal wires so as to be in close contact with each other around the liner.
  • a high-quality outer cable having higher tensile / compression strength and stiffness than the shielded structure and easily reducing the diameter can be obtained.
  • the end of the hollow strand is exposed from the outer skin and the diameter thereof is enlarged to form a first flare portion in which each metal element wire is discrete and constitutes a retaining portion for retaining.
  • the cap is insert-molded so as to enclose the part and the resin material of the cap is inserted between the metal wires, the first flare portion (the end of each metal wire) can deeply bite into the cap and exert the anchor effect As a result, the coupling strength of the cap to the outer cable end can be further increased.
  • the end of the liner is enlarged before insert-molding the cap to form a second flare adjacent to the first flare with a gap therebetween. Since the cap is insert-molded so as to enclose the cap, the first and second flared portions can independently exert an anchoring effect of deeply penetrating into the cap, whereby the end piece is further raised to the outer cable end portion via the cap. The connection can be performed with the bonding strength.
  • FIG. 1 is a partially broken whole view of an operation system showing a Bowden cable according to a first embodiment of the present invention and an example of its use (that is, an example of application to a throttle valve operation system of a motorcycle engine).
  • FIG. 2 is an enlarged cross-sectional view of the part viewed from the arrow 2 in FIG.
  • FIG. 3 is a cross-sectional view (an enlarged cross-sectional view taken along line 3-3 in FIG. 2) showing a design example of a Bowden cable.
  • FIG. 4 is a longitudinal sectional view more specifically showing the coupling structure between the cap and the end of the outer cable.
  • 5A and 5B show an end structure of the outer cable immediately before insert molding, in which FIG.
  • FIG. 5A is a side view in which a part of the outer cover is cut away
  • FIG. FIG. 6 shows a reference embodiment of the outer cable
  • FIG. 6 (A) is a corresponding side view of FIG. 5 (A)
  • FIG. 6 (B) is a cross section taken along line BB of FIG. 6 (A).
  • FIG. FIG. 7A is a sectional view corresponding to FIG. 2 showing the second embodiment
  • FIG. 7B is a sectional view corresponding to FIG. 7A showing a modification of the second embodiment.
  • FIG. 8 shows the third embodiment, and is a longitudinal sectional view of a joint between a cap and an outer cable.
  • FIG. 9 shows a fourth embodiment.
  • FIG. 9 shows a fourth embodiment.
  • FIG. 9 (A) is a longitudinal sectional view of a coupling portion between a cap and an outer cable
  • FIG. 9 (B) is BB of FIG. 9 (A).
  • FIG. 10 shows a fifth embodiment, in which FIG. 10 (A) is a longitudinal sectional view of a coupling portion between a cap and an outer cable
  • FIG. 10 (B) is a BB line of FIG. 10 (A).
  • FIG. 11 shows a sixth embodiment, in which FIG. 11 (A) is a longitudinal sectional view of a coupling portion between a cap and an outer cable
  • FIG. 11 (B) is a view taken along line BB of FIG. 11 (A). It is a line sectional view.
  • FIG. 12 shows a seventh embodiment, in which FIG. 12 (A) is a longitudinal sectional view of a coupling portion between a cap and an outer cable, and FIG. 12 (B) is a view BB of FIG. 12 (A). It is a line sectional view.
  • FIG. 13 shows the eighth embodiment, and is a longitudinal sectional view of a coupling structure between an outer cable, a cap, an end piece, and a bent pipe portion.
  • FIG. 14 shows the ninth embodiment, and is a longitudinal sectional view of a coupling structure between two sets of outer cables, caps and end piece coupling bodies.
  • FIG. 15 is a vertical cross-sectional view (corresponding to FIG. 2) of a connecting portion between a cap and an outer cable, showing a modification of each embodiment.
  • the two Bowden cables BO for the valve opening operation and the valve closing operation have the same structure, each of which has a flexible inner wire 1 and a flexible inner wire 1.
  • a flexible outer cable 2 that is inserted and guides its sliding, a first end piece E1 connected to an operated end 2a of the outer cable 2, and an operating end 2b of the outer cable 2.
  • a second end piece E2 connected to the second end piece E2.
  • the 1st end piece E1 is an example of the end piece of the present invention.
  • Each outer cable 2 has a liner 3 made of a synthetic resin for directly guiding the sliding of the inner wire 1, a hollow metal shield 4 for housing and holding the liner 3, and a synthetic resin for covering the outer periphery of the shield 4. And an outer skin 5 made of the same. A more specific structure of the outer cable 2 will be described later.
  • connection terminals 9a and 9b are fixed to the ends of both ends of the inner wire 1 extending outside the outer cable 2 by retrofitting, respectively.
  • An accelerator grip G is rotatably mounted on the steering handle pipe H of the motorcycle, and a drive drum 7 is fixed and connected to a base of the accelerator grip G.
  • the operation side connection terminals 9b of the inner wires 1 of the two Bowden cables BO are connected to the drive drum 7 so as to apply two different rotational operating forces from the drive drum 7 to the inner wires 1.
  • a drum cover 8 that covers the drive drum 7 and the connection terminals 9b is fixed to the handle pipe H.
  • the connection terminal 9 a on the operated side of both inner wires 1 is connected to the throttle drum 30 so that two different rotational operating forces can be applied to the throttle drum 30 from both inner wires 1.
  • the throttle valve When the inner wire 1 of one Bowden cable BO is pulled by rotating the accelerator grip G, the throttle valve is opened via the driving drum 7 which rotates in one direction in conjunction with the pulling. If the inner wire 1 of the other Bowden cable BO is pulled, the throttle valve can be closed via the drive drum 7 which rotates in the other direction in conjunction with the pull.
  • a return spring (not shown) for driving the throttle drum 30 in the valve closing direction is connected to the throttle drum 30. Therefore, when the throttle valve is opened, the driver releases his / her hand from the accelerator grip G. For example, the throttle drum 30 rotates in the valve closing direction by the elastic force of the return spring, and the accelerator grip G returns to the initial position in conjunction with the rotation.
  • the second end piece E2 on the operation side includes a metal end piece body 10 in the form of a bent pipe having a curved middle portion, and a metal mounting pipe portion 11 press-fitted and fixed to the outer periphery of the base of the end piece body 10. Be composed. Then, a male screw portion 10s provided on the outer periphery of the end portion of the end piece body 10 is screwed to the inner circumference of the boss portion 8b of the drum cover 8, and the screwing position is fixed by a lock nut n.
  • the operation side end 2 b of the outer cable 2 is inserted into the base of the end piece main body 10 and the inside of the mounting pipe 11. Then, by caulking a small-diameter cylindrical portion 11a extending from the end piece main body 10 of the mounting pipe 11, a part of the inner circumference of the mounting pipe 11 is crimped and fixed to the outer circumference of the end 2b of the outer cable 2. You.
  • a flexible synthetic resin pipe inner 12 is inserted into the end piece main body 10, and the inner wire 1 pulled out from the end 2 b of the outer cable 2 is slidable in the pipe inner 12. Is inserted through.
  • a seal cap 13 made of rubber is detachably fitted and locked to the tip of the end piece body 10.
  • connection structure between the operated first end piece E1 and the outer cable 2 will be described with reference to FIGS.
  • the first end piece E1 includes a large-diameter rectangular tube portion 20 having a plurality of engaging surfaces 20a on its outer periphery with which a tool (for example, a spanner, pliers, etc.) can be relatively non-rotatably engaged, and an outer cable of the rectangular tube portion 20.
  • a tool for example, a spanner, pliers, etc.
  • It is constituted by a metal tubular body integrally having a first small-diameter tube portion 21 connected to the two sides and a second small-diameter tube portion 22 connected to the throttle drum 30 side of the square tube portion 20.
  • An external thread portion 22s is engraved on the outer peripheral surface of the second small diameter cylindrical portion 22.
  • a cap C made of synthetic resin is joined to and integrated with the end 2a of the outer cable 2 on the operated side.
  • the cap C is insert-molded so as to cover and fix the outer periphery of the end 2a of the outer cable 2, and is fitted to the first end piece E1 so as to be relatively rotatable.
  • the cap C of the cap C on the outer cable 2 side is formed in a tapered, substantially shell shape, and the base Cb fitted into the first end piece E1 is formed in a cylindrical shape.
  • An annular engagement groove Cg is formed on the fitting surface of the cap C with the first end piece E1 (that is, the outer peripheral surface) at an intermediate position in the axial direction of the cap C simultaneously with the insert molding of the cap C.
  • the engagement groove Cg is an example of an engaged portion.
  • the engagement groove Cg is formed by caulking the outer peripheral portion of the first small-diameter cylindrical portion 21 radially inward.
  • the reduced diameter portion 21c is engaged.
  • the cap C is partially exposed (in the embodiment, a tapered tip), and is exposed so as to protrude from the first end piece E1, specifically, the outer end of the first small-diameter cylindrical portion 21. The operator can visually recognize the exposed portion Co.
  • the shield 4 of the outer cable 2 is constituted by a hollow strand 42 formed by twisting a plurality of metal wires 41, 41, ... arranged in close contact with each other around the liner 3.
  • the metal element wire 41 is an example of the metal member of the present invention that forms the shield 4.
  • FIG. 3 shows a design example of the Bowden cable BO when the inner wire 1 having a diameter of 1.0 mm is used.
  • the diameter of the metal wires 41, 41 is 0.4 mm
  • the number of the metal wires 41, 41 is 18, the twist pitch of the metal wires 41, 41 is 47 to 53 mm, and the metal wires 41, 41 are formed.
  • the twisting method is S-twisting
  • the outer diameter of the shield 4 is 2.6 mm
  • the outer diameter of the outer cover 5 (therefore, the outer diameter of the outer cable 2) is 3.0 mm
  • the weight is 21 g / m. is there.
  • FIG. 6 shows a design example of the Bowden cable BO of the reference embodiment using the inner wire 1 having a diameter of 1.0 mm in the same manner as described above.
  • the thickness of the metal strip 4m as a metal member that is closely wound in a coil shape to form the shield 4 is 0.5 mm
  • the outer diameter of the shield 4 is 4.0 mm
  • the outer diameter of the outer skin 5
  • the outer cable 2 has an outer diameter of 5.0 mm and a weight of 62 g / m.
  • the outer diameter of the shield 4 of the reference embodiment is 4.0 mm, which is the limit in forming a metal strip 4 m having a thickness of 0.5 mm in close contact with a coil, and the outer diameter is less than 4.0 mm.
  • the thickness of the metal strip 4m must be less than 0.5 mm, but the strength of the shield 4 becomes insufficient.
  • the fact that the outer diameter of the shield 4 of the present embodiment can be significantly reduced from the outer diameter of the shield 4 of the reference embodiment means that the plurality of metal wires 41, 41. This is because the hollow strands 42 are formed in such a manner that they are arranged close to each other around the liner 3 and twisted to form a hollow strand 42, which is used as the shield 4.
  • the diameter of the Bowden cable BO is reduced (for example, the outer diameter is 3.0 mm or less), and the weight is reduced. (The weight is about ⁇ of the reference embodiment).
  • the shield 4 composed of the hollow strands 42 has a higher tensile and compressive strength and a higher rigidity than the shield 4 of the reference embodiment in which the metal strip 4m is wound tightly in a coil shape. It can withstand not only force but also push operation force, can increase the transmission efficiency of any operation force, and is also excellent in flexibility, and its use is extremely wide.
  • connection structure between the end 2a of the outer cable 2 and the cap C will be described more specifically with reference to FIGS.
  • the outer skin 5 is removed from the outer end of the end 2a of the outer cable 2 to expose the end of the hollow strand 42 from the outer skin 5.
  • a first flare portion 43 in which the metal wires 41 are discrete is formed.
  • the first flare portion 43 is an example of the retaining portion of the present invention.
  • the diameter of the end portion of the liner 3 is also enlarged, and a second flare portion 44 adjacent to the first flare portion 43 is formed.
  • the second flare portion 44 is formed to have a smaller diameter than the first flare portion 43, and a gap is provided between the second flare portion 44 and the first flare portion 43.
  • the cap C surrounds the first and second flare portions 43 and 44 and the end of the outer cover 5 (that is, a mold having a cavity for forming the cap C (not shown)).
  • injection molding that is, insert molding is performed.
  • the synthetic resin as the molding material enters the gap between the plurality of metal wires 41 constituting the first flare section 43 and the gap between the first and second flare sections 43 and 44.
  • the second flare portion 44 is formed to have a smaller diameter than the first flare portion 43, during the above-mentioned injection molding, between the metal materials 41 of the first flare portion 43, and between the first and second flare portions 43, The penetration of the synthetic resin between the spaces 44 becomes good, and the anchor effect of the first and second flare portions 43 and 44 on the cap C is further enhanced.
  • a mounting stay 31 as a support member is fixed to the throttle body T around the throttle drum 30.
  • the mounting stay 31 has a pair of mountings through which the second small-diameter cylindrical portion 22 is loosely penetrated. A hole 31h is formed. Then, the second small-diameter cylindrical portion 22 (accordingly, the end piece E1) is mounted by a pair of nuts 32, 32 screwed into the male screw portions 22s on both sides of each of the mounting holes 31h and sandwiching the mounting stay 31 therebetween. It is fastened to the stay 31 so that the position can be adjusted.
  • connection terminals 9a, 9a fixed to those terminals are connected to the throttle drum 30.
  • each Bowden cable BO on the operated side of the outer cable 2 When connecting the end 2a of each Bowden cable BO on the operated side of the outer cable 2 to the first end piece E1, first the outer cable 2 is manufactured, and then the cable end 2a is attached to the cable end 2a as described above.
  • the synthetic resin cap C which is insert-molded in a suitable molding mode, is combined and integrated. According to this insert molding, the outer cover 5 of the cable end 2a and the first and second flare portions 43 and 44 are integrally embedded in the synthetic resin material of the cap C.
  • the base portion Cb of the cap C integrated with the cable end 2a is fitted into the first end piece E1, and the first small-diameter cylindrical portion 21 corresponds to the engaging groove Cg of the cap C in the fitted state.
  • the outer peripheral portion of the first small-diameter cylindrical portion 21 is caulked to form a reduced-diameter portion 21c, and the reduced-diameter portion 21c and the engaging groove Cg are engaged with each other. Due to the engagement, the first end piece E1 and the cap C (therefore, the outer cable end 2a fixed to the cap C) are connected to each other so as to be rotatable relative to each other but not to move relative to each other in the axial direction.
  • the cable device of the present embodiment is a synthetic resin cap that is insert-molded so as to cover and fix the end 2a of the outer cable 2 and is relatively rotatably fitted to the inner peripheral portion of the first end piece E1.
  • C, and the cap C is engaged with the reduced diameter portion 21c (i.e., the engagement portion) formed by caulking the first end piece E1 so as to be rotatable relative to each other and immovable relative to the axial direction. Joint portion) on the outer peripheral surface.
  • the retaining portion i.e., the first flare portion 43
  • the retaining portion configured by exposing the ends of the plurality of metal members (i.e., the metal wires 41) serving as the shields 4 of the outer cable 2 from the outer cover 5 is provided. Since the cap C is embedded and integrated into the resin material of the cap C together with the insert molding to exhibit the effect of preventing the cap C from coming off from the resin material, the cap C and the cable end 2a can be firmly connected.
  • the insert molded cap C not only has a high degree of freedom in selecting the constituent material (synthetic resin), but also has a high degree of freedom in selecting the shape of each part including the engagement groove Cg (that is, the engaged part). In addition, it is possible to easily design an optimum material and shape structure in accordance with the installation mode and the use condition of the Bowden cable BO, and the degree of design freedom is increased.
  • the cap C is partially exposed (in the embodiment, a tapered tip) so as to protrude from the first end piece E1, and the color tone of the exposed portion Co is determined by appropriately selecting the material of the cap C. It can be easily changed just by doing.
  • the operator can easily determine the type, the assembly destination, and the like of the Bowden cable BO based on the difference in the color tone of the cap C (that is, the exposed portion Co).
  • erroneous assembly can be prevented and assembly workability can be improved.
  • the relative rotation between the cap C and the first end piece E1 becomes smoother. As a result, the ease of assembling the cable device to the motorcycle is improved, and there is no possibility that the Bowden cable BO is forcibly twisted in the assembling process or in the assembling completed state.
  • the shield 4 is formed of hollow strands in which a plurality of metal wires 41 are arranged so as to be in close contact with each other around the synthetic resin liner 3 and twisted.
  • a high-quality outer cable 2 having high tensile / compression strength and rigidity and easy to reduce the diameter can be obtained.
  • the end of the shield 4 (that is, the hollow strand) is exposed from the outer skin and the diameter thereof is enlarged to form the first flare portion 43 in which the metal wires 41 are separated. Since the cap C is insert-molded so as to surround the first flare portion 43 and the constituent resin material of the cap C is inserted between the plurality of metal strands 41, the first flare portion 43 (ie, The locking portion for retaining) deeply penetrates into the cap C to exert an anchoring effect, and the coupling strength of the cap C to the cable end 2a is further increased.
  • the end of the liner 3 is enlarged to form a second flare section 44 adjacent to the first flare section 43 with a gap therebetween. Since the cap C is insert-molded so as to be wrapped, the first and second flare portions 43 and 44 independently exert an anchor effect of deeply penetrating the cap C, and the coupling strength of the cap C to the cable end 2a is more effective. To be strengthened.
  • an annular boot locking groove Coa as a boot locking portion is inserted into the cap C on the outer periphery of the exposed portion Co exposed from the first end piece E1 of the cap C. It is formed simultaneously with molding.
  • One end 50a of a tapered cylindrical reinforcing boot 50 surrounding the extended portion 2m extending from the cap C of the outer cable 2 and the tip Ca of the cap C is engageable with the boot locking groove Coa. Is fitted and locked.
  • the other end 50b of the boot 50 is fitted and supported in the extended portion 2m of the outer cable 2 in a light press-fit state.
  • the reinforcing boot 50 is for increasing the bending rigidity of the extended portion 2m of the outer cable 2, and is made of, for example, a synthetic resin material or a rubber material having higher flexibility and elasticity than the constituent resin material of the cap C. You. Other configurations are the same as those of the first embodiment, and therefore, the same functions and effects as those of the first embodiment can be achieved.
  • the special provision of the reinforcing boots 50 can prevent the bent portion 2m of the outer cable 2 extending from the cap C from being excessively bent or broken, and furthermore, the one end 50a of the outer cable 2 is engaged with the boot engaging groove Coa. By stopping, the bonding step for preventing the boot from coming off is not required.
  • the boot locking groove Coa (the locking portion for the boot) is formed simultaneously with the insert molding of the cap C to be crimped to the end piece E1, so that the formability and workability of the boot locking groove Coa are increased. Is enhanced. Further, since the cap C also serves as the boot locking means, it can contribute to the simplification of the structure.
  • the cap C is provided with the boot locking groove Coa as the boot locking portion recessed in the exposed portion Co.
  • FIG. 7B shows the second embodiment. Modifications of the form are shown.
  • an annular locking protrusion Cot is formed on the outer periphery of the exposed portion Co of the cap C at the same time as the insert molding of the cap C, instead of the locking groove Coa, as the boot locking portion.
  • the reinforcing boot 50 manufactured in advance on a different manufacturing line from the cap C is attached to the cap C and the outer cable 2 by retrofitting.
  • the cap C is insert-molded (i.e., primary molding) on the end 2a of the outer cable 2
  • the reinforcing boot 50 is insert-molded (i.e., secondary molding) on the molded product, so that the reinforcing boot 50 is formed with the cap C.
  • the reinforcing boot 50 is formed with the cap C.
  • the reinforcing boot 50 is formed with the cap C.
  • the reinforcing boot 50 is formed with the cap C.
  • the reinforcing boot 50 is formed with the cap C.
  • a bent pipe portion 60 that covers and supports the intermediate bent portion 2c that is continuous with the end 2a of the outer cable 2 is integrally connected to the cap C.
  • the bent tube portion 60 has a structure in which a reinforcing rib 60a is integrally provided on one side of the outer periphery, and can exhibit high bending rigidity.
  • bent tube portion 60 is insert-molded together with the cap C, and is connected to and integrated with the intermediate bent portion 2c of the outer cable 2.
  • Other configurations are the same as those of the first embodiment, and therefore, the same functions and effects as those of the first embodiment can be achieved.
  • the bent tube portion 60 that covers and supports the intermediate bent portion 2c of the outer cable 2 is formed at the same time as the insert molding of the cap C to which the end piece E1 is to be crimped.
  • the moldability and processability of No. 60 are improved.
  • the cap C and the bent tube portion 60 that supports the intermediate bent portion 2c of the outer cable 2 can be made into a single component, so that handling is simplified.
  • To 67 are formed simultaneously with the insert molding of the cap C.
  • caps C are insert-molded at ends 2a of the outer cables 2 of a pair of Bowden cables BO arranged in parallel with each other.
  • a spacer member 64 which is an example of a cable connecting member, is integrally provided so as to protrude outward in the radial direction of the cap (in a direction approaching each other). Then, the distal ends of the spacer members 64 of the two caps C are integrally joined by an appropriate connecting means (for example, adhesion).
  • an appropriate connecting means for example, adhesion
  • the ends 2a of the two outer cables 2 arranged in parallel are connected to each other while maintaining a constant interval via the cap C and the spacer member 64, the pair of Bowden cables BO are arranged in the course of routing.
  • the ends 2a of the two outer cables 2 can be always held at a constant interval, which is advantageous in improving the workability of assembly.
  • the cap C also serves as a support base for the spacer member 64, the structure can be simplified accordingly.
  • the other outer cable 2 which is connected and held at a fixed interval to one outer cable 2 via the spacer members 64, 64 and the cap C, is different from that of the present invention. It is an example of a member.
  • a support plate 65 which is an example of a cable connecting member, protrudes outward in the cap radial direction on an exposed portion Co of a cap C insert-molded at the end 2a of the outer cable 2. In addition, they are integrally protruded so that the plate surface is perpendicular to the cable axis.
  • a support hole 65h is formed at the front end of the support plate 65, and a bolt 36 inserted into the support hole 65h has a support surface that is orthogonal to the cable axis and is fixed to, for example, the vehicle body side. That is, the support plate 65 (accordingly, the cap C) is fastened to the support stay 35 by the bolt 36.
  • the support stay 35 is an example of another member of the present invention.
  • the end piece E1 having the reduced diameter portion 21c in the small diameter cylindrical portion 21 which is crimped to the cap C has not only the rectangular cylindrical portion 20 as in the first embodiment but also a large diameter continuous with the small diameter cylindrical portion 21.
  • the cylindrical portion 22 ' also has no male screw portion.
  • the end piece E1 has its large-diameter cylindrical portion 22 'inserted and supported in a support hole 37h1 formed in a support 37 (ie, a second support member) fixed to the vehicle body side.
  • the support 37 has an inner wire guide hole 37h2 which is opened at the bottom of the support hole 37h1 and through which the inner wire 1 is slidably inserted.
  • Other configurations are the same as those of the first embodiment, and therefore, the same functions and effects as those of the first embodiment can be achieved.
  • the end 2 a of the outer cable 2 is fastened to the support stay 35 via the cap C and the support plate 65.
  • the formability and workability of the support plate 65 can be improved.
  • the cap C also serves as a support base for the support plate 65, the structure can be simplified accordingly.
  • a pair of upper and lower support plates 66 which are an example of a cable connecting member, are provided on the exposed portion Co of the cap C which is insert-molded at the end 2a of the outer cable 2 upward and downward. Each of them protrudes and is integrally formed so that the plate surface is aligned with the cable axis.
  • a support hole 66h is formed at the front end of each support plate 66, and a bolt 36 inserted into the support hole 66h has a support stay 35 'having a support surface along the cable axis and fixed to the vehicle body (that is, a support stay 35').
  • Each support plate 66 (accordingly, the cap C) is fastened to the support stay 35 'by the bolt 36.
  • the support stay 35 ' is an example of another member of the present invention.
  • the end piece E1 having the reduced-diameter portion 21c which is crimped to the cap C and having the reduced-diameter portion 21c does not have the rectangular cylindrical portion 20 but also has the large-diameter portion connected to the small-diameter cylindrical portion 21.
  • the cylindrical portion 22 ' also has no male screw portion, and the large-diameter cylindrical portion 22' is fitted and supported in a support hole 37h1 of a support body 37 (ie, a second support member) fixed to the vehicle body. .
  • the support 37 has an inner wire guide hole 37h2.
  • the end 2a of the outer cable 2 is fastened to the support stay 35 'via the cap C and the support plate 66, and the support plate 66 is integrated with the cap C, so that the formability of the support plate 66 is improved. And workability are enhanced.
  • the cap C also serves as a support base for the support plate 66, the structure can be simplified accordingly.
  • a grommet member 67 which is an example of a cable connecting member, is formed integrally with an exposed portion Co of a cap C insert-molded at the end 2a of the outer cable 2.
  • the grommet member 67 includes a cylindrical portion 67m that covers the end 2a of the outer cable 2, and a pair of flange portions 67a and 67b that project radially outward from outer circumferences of both ends in the axial direction of the cylindrical portion 67m.
  • a base portion of a flexible band-shaped metal plate 38 that is, a first support member
  • a front portion 38 a of the metal plate 38 is connected to a pair of grommet members 67.
  • the metal plate 38 is an example of another member of the present invention.
  • the end piece E1 having the reduced-diameter portion 21c which is crimped to the cap C and having the reduced-diameter portion 21c does not have the rectangular cylindrical portion 20 but also has the large-diameter portion connected to the small-diameter cylindrical portion 21.
  • the cylindrical portion 22 ' also has no male screw portion, and the large-diameter cylindrical portion 22' is fitted and supported in the support hole 37h1 of the support 37 (that is, the second support member).
  • the support 37 has an inner wire guide hole 37h2.
  • the end 2a of the outer cable 2 is fastened to the metal plate 38 fixed to the vehicle body via the grommet member 67 and the cap C, and the grommet 67 is integrated with the grommet member 67 to form the grommet.
  • the formability and workability of the member 67 are improved.
  • the cap C also serves as a support base for the grommet member 67, the structure can be simplified accordingly.
  • the cap C is attached to the other end (the large-diameter cylindrical portion 22 ′′) of the end piece E ⁇ b> 1 which is crimped to one end (the small-diameter cylindrical portion 21).
  • a bent metal pipe portion 70 having a curved middle portion is screwed into the large-diameter cylindrical portion 22 ′′ of the end piece E1, and the screwing position is locked.
  • a flexible synthetic resin pipe inner 71 is fitted into the bent pipe portion 70, and is pulled out from the end 2a of the outer cable 2 into the pipe inner 71.
  • the inner wire 1 is slidably inserted into the inner wire 1.
  • the bent tube portion 70 is appropriately fixed and supported on a support stay (not shown) fixed to the vehicle body side, and the other configurations are the same as those of the first embodiment. Therefore, the same operation and effect as the first embodiment can be achieved.
  • a metal bent tube portion 70 may be fixed to the large-diameter cylindrical portion 22 ′′ of the end piece E1 by press-fitting (not shown).
  • a pair of end pieces E1 and E1 'in which a cap C is crimped to each end (small-diameter cylindrical portion 21) are manufactured and arranged in tandem.
  • the inner wire 1 is formed such that the end 2a is covered and integrated with one cap C, the end 2a is covered and integrated, and both the end pieces E1 and E1 'are covered and integrated with the other cap C.
  • the other outer cable 2 ' is sequentially inserted.
  • the overall length of the outer cables 2, 2 ' can be arbitrarily adjusted by adjusting the mutual screwing positions of both end pieces E1, E1'.
  • the annular engagement groove Cg is exemplified as the engaged portion to be provided on the cap C.
  • the engagement of the outer periphery of the cap C is performed.
  • An annular projection Ct instead of the groove Cg may be formed simultaneously with the insert molding of the cap C, and the annular projection Ct may be used as the engaged portion of the present invention.
  • FIG. 15 shows an example in which an annular protrusion Ct is formed on the outer periphery of the cap C in place of the engaging groove Cg in the first embodiment. Then, the reduced diameter portion 21c formed by caulking the first small-diameter cylindrical portion 21 of the first end piece E1 is engaged so as to be relatively rotatable and relatively immovable in the axial direction.
  • an annular projection Ct may be formed on the outer periphery of the cap C instead of the engagement groove Cg in the second to ninth embodiments in the same manner as described above.
  • the metal shield 4 of the outer cable 2 is provided with a plurality of metal elements arranged in close contact with each other around the liner 3.
  • the structure of the metal shield 4 in each of the first to fifth features of the present invention is not limited to the above embodiment.
  • a metal strip 4m (metal member) as in the reference embodiment illustrated in FIG.
  • the metal shield 4 may be used as the metal shield 4 in each of the first to fifth features of the present invention.
  • a portion of the end portion of the metal strip 4m (metal member) which is protruded and exposed from the outer cover 5 serves as a retaining portion of the present invention.
  • the Bowden cable BO is applied to the throttle valve operation system of the motorcycle engine.
  • the Bowden cable of the present invention is applied to an operation system other than the throttle valve operation system of the vehicle, such as a clutch,
  • the present invention is applicable to an operation system such as a brake, and may be applied to various operation systems other than the vehicle.
  • the terminal structure of the Bowden cable according to the present invention is applied only to the terminal structure of the operated side Bowden cable. A similar terminal structure may be applied.
  • the first end piece E1 which is an example of the end piece, is entirely made of metal.
  • a part of the first end piece E1, including a portion to be crimped. May be made of metal, and the other parts may be made of nonmetal (for example, made of synthetic resin).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Flexible Shafts (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Wire Processing (AREA)

Abstract

L'invention concerne un dispositif de câble, dans lequel dispositif un câble externe d'un câble Bowden comporte un revêtement qui fait coulisser et qui guide un fil interne, un blindage fait de métal creux qui stocke et qui maintient le revêtement, et une peau externe faite de résine synthétique qui recouvre la périphérie externe du blindage. Le dispositif de câble comporte un capuchon fait en résine synthétique (C) qui est obtenu par moulage par insertion de manière à revêtir et à fixer la périphérie externe d'une partie d'extrémité d'un câble externe (2), et qui est ajusté sur la partie périphérique interne d'une pièce d'extrémité (E) de façon à être apte à tourner de façon relative. Le capuchon a, sur une surface de montage à la pièce d'extrémité du capuchon, une partie en prise (Cg) qui vient en prise avec une partie de prise (21c) soumise à un matage sur la pièce d'extrémité de manière à être apte à tourner de façon relative et à ne pas être apte à être mobile de façon relative dans la direction axiale. Une partie de verrouillage de maintien (43) configurée pour exposer la partie d'extrémité d'un élément métallique (41) jouant le rôle de blindage vis-à-vis d'une peau externe (5) est soumise à un moulage par insertion, et est intégrée dans la résine qui constitue le capuchon. Par conséquent, même si le câble externe a un petit diamètre, une force de jonction entre la pièce d'extrémité et la partie d'extrémité du câble externe peut être efficacement accrue, et la partie d'extrémité de câble externe est peu susceptible de tomber de la pièce d'extrémité.
PCT/JP2019/037605 2018-09-26 2019-09-25 Dispositif de câble et son procédé de fabrication Ceased WO2020067159A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018180931A JP2020051505A (ja) 2018-09-26 2018-09-26 ケーブル装置及びその製造方法
JP2018-180931 2018-09-26

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WO2020067159A1 true WO2020067159A1 (fr) 2020-04-02

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS439481B1 (fr) * 1964-04-15 1968-04-19
JPS59158712U (ja) * 1983-04-08 1984-10-24 株式会社シマノ 自転車用操作ケ−ブル
JP2005098397A (ja) * 2003-09-25 2005-04-14 Nippon Cable Syst Inc コントロールケーブル装置
JP2016183744A (ja) * 2015-03-26 2016-10-20 やまと興業株式会社 ボーデンケーブルにおけるエンドピースとアウタケーブルの結合方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS439481B1 (fr) * 1964-04-15 1968-04-19
JPS59158712U (ja) * 1983-04-08 1984-10-24 株式会社シマノ 自転車用操作ケ−ブル
JP2005098397A (ja) * 2003-09-25 2005-04-14 Nippon Cable Syst Inc コントロールケーブル装置
JP2016183744A (ja) * 2015-03-26 2016-10-20 やまと興業株式会社 ボーデンケーブルにおけるエンドピースとアウタケーブルの結合方法

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