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WO2019058568A1 - Dispositif à câbles et son procédé de fabrication - Google Patents

Dispositif à câbles et son procédé de fabrication Download PDF

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Publication number
WO2019058568A1
WO2019058568A1 PCT/JP2017/044722 JP2017044722W WO2019058568A1 WO 2019058568 A1 WO2019058568 A1 WO 2019058568A1 JP 2017044722 W JP2017044722 W JP 2017044722W WO 2019058568 A1 WO2019058568 A1 WO 2019058568A1
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WO
WIPO (PCT)
Prior art keywords
cable
case
curved
portions
bent
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/JP2017/044722
Other languages
English (en)
Japanese (ja)
Inventor
昌弘 小杉
啓太 浅野
憲吾 前田
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
Priority to BR112018071732-0A priority Critical patent/BR112018071732B1/pt
Priority to CN201780026957.5A priority patent/CN109819666B/zh
Priority to PH12018502121A priority patent/PH12018502121A1/en
Publication of WO2019058568A1 publication Critical patent/WO2019058568A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • 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"
    • 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

Definitions

  • the present invention can be accommodated in a cable device including a pair of Bowden cables, in particular, a synthetic resin drum case configured to be divided from first and second case halves detachably coupled to each other, and the drum case.
  • a cable device including a pair of Bowden cables, in particular, a synthetic resin drum case configured to be divided from first and second case halves detachably coupled to each other, and the drum case.
  • Device comprising a flexible first Bowden cable which can be pulled by one rotation of a rotary drum, and a flexible second Bowden cable which can be pulled by rotation of the rotary drum in the other direction and the same It relates to the manufacturing method.
  • a resin pipe inner for protecting the inner wire is provided in the metal first and second bent pipes which connect and fix one end to the outer cable end of the first and second Bowden cables respectively.
  • the inner wire is inserted, and the other ends of the first and second bent pipes are connected to the drum case by retrofitting, respectively, and drawn out through the resin pipe inner from the outer cable end of the first and second Bowden cables. Is connected to the rotating drum in the drum case.
  • the first and second boden cables B1 'and B2' are connected and fixed to the outer cable O 'terminal portion.
  • the inner wires I drawn from the outer end of the outer cable O ' are directly inserted (that is, without via a resinous pipe inner) into both the bent pipes P1, P2 made of synthetic resin made of synthetic resin, while
  • a first case half C1 'of the drum case C' is constituted by a first case main body C1a 'covering one half circumferential portion of the rotary drum 12 and a semitubular first bending portion C1b' integrally connected thereto.
  • the second case half C2 'of the drum case C' with a second case body C2a 'covering the other half of the rotary drum 12 and a semitubular second bending portion C2b' integrally connected to the second case body C2a '.
  • the first and second bent pipes P1 and P2 are respectively inserted into the second bent portions C1b 'and C2b' from the opening portions of the mating surfaces, and the joining surfaces are joined to each other. .
  • a reinforcing rib (refer to reinforcing ribs 41a and 42a or projections 41t and 42t in the embodiment described later) extending in a direction crossing the opening of the mating surface projects on the inner surface of the first and second curved portions C1b 'and C2b' It is difficult to set up because it becomes an obstacle to the work of attaching and detaching the first and second bent pipes P1 and P2.
  • the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cable device and a method of manufacturing the same that can solve the various problems described above with a simple structure.
  • a drum case made of a synthetic resin configured to be divided into first and second case halves detachably coupled to each other, and a rotation that can be accommodated in the drum case.
  • a cable arrangement comprising a flexible first Bowden cable which can be pulled by rotation of the drum in one direction, and a flexible second Bowden cable which can be pulled by rotation of the rotating drum in the other direction,
  • a first case main body covering one half of the rotating drum and a first case main body having one end connected to the first case main body and at least a middle portion bent to form an outer cable of the first Bowden cable
  • a second case main body portion covering the other half circumferential portion of the rotating drum, and a second case half portion having a first bending portion in which the bent end portions are integrally embedded;
  • a second bent portion integrally embedded with a bent end portion of the outer cable of the second Bowden cable, one end of which is continuous with the case main body portion and at least the middle portion is bent and formed;
  • the present invention further includes a synthetic resin liner for directly guiding the sliding of the inner wire, and a hollow for receiving and holding the outer cable of each of the first and second Bowden cables. And a synthetic resin sheath for covering the outer periphery of the shield, wherein the shield is a hollow strand formed by winding together a plurality of metal wires arranged to be in close contact with each other around the liner. And one end of the hollow strand is exposed from the outer shell, and the diameter of one end of the hollow strand is expanded to form a first flared part in which each metal wire is dispersed, and also one end of the liner.
  • the end portion of the outer cable of the first Bowden cable and the first and second flare portions have a second flare portion adjacent to the first flare portion by expanding the diameter.
  • the entire first case half is injection molded so as to be enclosed by the first bending portion, and the end portion of the outer cable of the second Bowden cable and the first and second flare portions are the second bending.
  • a second feature is that the entire second case half is injection molded in such a way as to be enclosed by a part.
  • At least one of the mating surfaces of the first and second curved portions protrudes from the concave surface recessed from the mating surface, and
  • a third feature is that a plurality of reinforcing ribs extending transversely to the concave surface are formed.
  • a concave surface recessed from the mating surface is formed on the mating surface of the first and second curved portions, and at least one of the concave surfaces is formed. From the bottom of the housing, a projection projecting towards the other of the concave surfaces is integrally formed, and the projection of the one concave surface abuts on the other concave surface or abuts on the projection of the other concave surface As the fourth feature.
  • the present invention is a method of manufacturing a cable device having the second feature, in which the first case main body and the first curved portion are respectively formed in the injection molding of the first case half.
  • a cavity having at least a case body molding cavity and a bending cavity, and setting the end of the outer cable of the first Bowden cable in the bending cavity before the injection molding;
  • a mold apparatus is used which comprises a plurality of positioning protrusions capable of positioning and holding the end portions in cooperation with each other with respect to the bending portion molding cavity, and the surface of the first bending portion is provided with the plurality of The number of the removal marks that appear after the injection molding is completed, of the positioning protrusion, and that appears on the surface of the first curved part that is in contact with the second curved part , And the first bend portion, wherein the the second bent portion be greater than the number of the vent mark appearing on the surface opposite the fifth aspect.
  • the plurality of positioning projections are positioned and held so as to sandwich the terminal portion in the direction along the mating surface with respect to the first curved portion molding cavity portion.
  • a plurality of pairs of first positioning projections and a plurality of pairs of second positioning projections for positioning and holding the terminal portion in a direction perpendicular to the mating surface with respect to the first curved portion molding cavity portion are included.
  • the removal mark appearing on the surface opposite to the second bending part of the first bending part is only the removal mark of the second positioning projection engaged with the end part from the side opposite to the mating surface
  • the sixth feature is only the removal mark of the second positioning projection engaged with the end part from the side opposite to the mating surface
  • the first case main body portion covering one half circumference side of the rotary drum, and the first outer cable end portion in which the first Bowden cable is bent are integrally embedded.
  • a second bent portion integrally embedded with a first case half integrated with a bent portion, a second case main body portion covering the other half circumferential side of the rotating drum, and a bent outer cable end portion of a second Bowden cable Only the two components of the second case half that integrates the two.
  • first and second bends are integrally formed by embedding the outer cable end portions of the first and second Bowden cables in each of the first and second bends, the outer cable ends or both are passed through the mating surfaces of the two in the bends. It is not necessary to load a series of resin curved pipes specially, and the design freedom of the shape and structure of the mating surface is expanded, and the design is facilitated. Furthermore, the outer cable end portions of the first and second Bowden cables are embedded in the first and second bent portions, respectively, so that the outer cable end portion and the first and second bent portions can be separated from each other.
  • a loose and tight integrated state is easily obtained, and moreover, when the inner wire is pulled, a compressive load from the end of the outer cable to the rotary drum acting on the first and second bent portions is mechanically engaged (load
  • the first and second bent portions can be mechanically and firmly received without special intervention of the transmission means, and the structure can be simplified.
  • the hollow shield of the Bowden cable is formed of hollow strands formed by winding together a plurality of metal wires arranged so as to be in close contact with each other around the liner,
  • the diameter can be reduced to a diameter sufficiently smaller than that of the shield of a conventional Bowden cable using an inner wire of a diameter, and the Bowden cable can be reduced in diameter and, consequently, reduced in weight.
  • the hollow strands have higher tensile strength and compressive strength and rigidity than conventional shields in which metal strips are closely wound in a coil shape, the pull operation force of the inner wire is, of course, the push operation force. Also, the transmission efficiency of any operation force can be enhanced, and the flexibility is also excellent, and the application thereof can be expanded.
  • one end of the hollow strand is exposed from the shell, and the diameter of one end of the hollow strand is enlarged to form a first flare portion in which each metal wire is separated, and the diameter of one end of the liner is also expanded.
  • the first and second flared portions of the outer cable of the first and second Bowden cables are surrounded by the first and second bent portions, respectively, as the second flared portion adjacent to the first flared portion. Since the second case half is injection molded, the first and second case halves integrating the first and second case main portions and the first and second bent portions can be easily formed by both injection molding.
  • first and second case halves and the outer case Coupling strength between Le can be effectively enhanced.
  • At least one of the mating surfaces of the first and second curved portions has a concave surface recessed from the mating surface and a ridge protruding from the concave surface and traversing the concave surface Since a plurality of reinforcing ribs extending in the first and second bending portions are formed, in the mating surface of one or both of the first and second curved portions, the mating surface is formed by the reinforcing rib special installation while reducing the thickness by the formation of the concave surface. Enough strength can be given.
  • the outer cable end portions of the first and second Bowden cables are integrally embedded in the first and second bent portions, there is a possibility that the reinforcing rib may interfere with the assembling work of the outer cable and the like. This can eliminate the design freedom of the reinforcing rib in the mating surface.
  • concave surfaces recessed from the mating surfaces are respectively formed on the mating surfaces of the first and second curved portions, and from the bottom of at least one of the concave surfaces, the other concave surface is formed.
  • the projections projecting upwards are integrally formed, and one concave projection abuts on the other concave surface or abuts on the other concave projection, so that both mating surfaces of the first and second curved portions Sufficient strength can be imparted to the mating surface by the special provision of the projections while reducing scrapes by the formation of the concave surface.
  • the mold apparatus used for injection molding the first case half body positions the outer cable end portions of the first Bowden cable in cooperation with each other with respect to the first bending portion forming cavity portion Since the plurality of positioning projections that can be held are provided, the positioning projections properly position and hold the outer cable end portion of the first Bowden cable with respect to the first bending portion molding cavity during injection molding of the first case half. And the formability of the first bent portion becomes good.
  • the plurality of positioning projections sandwich the outer cable end portion in the direction along the mating surface of the first and second bending portions with respect to the first bending portion forming cavity portion. And a plurality of pairs of second positioning protrusions for positioning and holding the outer cable end portion in a direction perpendicular to the mating surface with respect to the first curved portion forming cavity portion. And the blanks appearing on the surface of the first bend opposite to the second bend are part (that is, they engage with the outer cable end from the opposite side of the mating surface) (2) Since only the removal marks of the positioning projections are present, the removal marks appearing on the surface of the first bend in the used state of the cable device can be minimized, and the influence on the device appearance can be further suppressed.
  • FIG. 1 is a partially broken whole schematic view showing an embodiment in which a cable device according to the present invention is applied to a throttle operation system of a motorcycle.
  • FIG. 2 is an exploded perspective view of the vicinity of the accelerator grip according to the embodiment.
  • FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.
  • FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG.
  • FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 4 and a cross-sectional view of part of the first case half (bent portion).
  • 6 is a cross-sectional view taken along line 6-6 of FIG.
  • FIG. 7 is an enlarged sectional view of a portion 7 of FIG. FIG.
  • FIG. 8 is a partially broken enlarged side view and an end view of an end portion on an accelerator grip side of an outer cable in a single state (i.e., before insert molding).
  • FIG. 9 is a longitudinal sectional view corresponding to FIG. 6 showing a mold apparatus in a state (before resin injection) in which a middle mold and a shape-retaining core material are set between upper and lower molds in the injection molding process of the first case half. is there. It is a disassembled perspective view of the accelerator grip vicinity of the improvement plan (reference example) of a prior art (FIG. 2 corresponding
  • 11 (A) is a cross-sectional view taken along line 11-11 of FIG. 10 (corresponding to the middle row of FIG. 1), and FIG. 11 (B) is a cross-sectional view taken along line BB of FIG. is there.
  • This embodiment is an example in which the cable device CA of the present invention is applied to a throttle valve operation system of a vehicle such as a motorcycle engine, and in this example, the first and second Bowden cables B1 and B2 forming a pair are opened. It is used separately for valve operation and for valve closing operation.
  • An accelerator grip 11 is rotatably fitted around the axis of the handlebar 10 at the left and right end portions of the handlebar 10 of the motorcycle.
  • a rotating drum 12 connected to rotate integrally with the same is continuously provided.
  • a throttle drum 30 is rotatably supported by a throttle body T provided in an intake system of a vehicle-mounted engine, and the throttle drum 30 rotates in conjunction with a throttle valve (not shown) for adjusting an intake amount.
  • the throttle drum 30 is interlocked and connected to the rotary drum 12 via the first and second Bowden cables B1 and B2.
  • a return spring (not shown) is connected to the throttle drum 30 to always bias the valve in the valve closing direction.
  • the cable device CA can pull and operate the throttle drum 30 in the valve opening direction by rotation of the drum case C made of synthetic resin that accommodates the rotary drum 12 and rotation of the rotary drum 12 that can be accommodated in the drum case C in one direction.
  • a flexible first Bowden cable B1 and a flexible second Bowden cable B2 capable of pulling the throttle drum 30 in the valve opening direction by rotation in the other direction of the rotary drum 12 are provided.
  • Both of the first and second Bowden cables B1 and B2 have the same structure, and each of the first and second Bowden cables B1 and B2 has a flexible inner wire I and a flexibility for guiding the sliding thereof by inserting the inner wire I inside. And an outer cable O.
  • the drum case C is divided into two parts from first and second case halves C1 and C2 which are detachably coupled to each other by suitable coupling means (for example, a plurality of bolts 14). Further, the drum case C is disposed adjacent to the inner end side of the accelerator grip 11, and the handle bar 10 is integrally pinched between the first and second case halves C1 and C2. It is fixed to ten.
  • the first and second case halves C1 and C2 are integrally molded by injection molding of a synthetic resin as described later.
  • the first case half C1 has a first case body C1a formed in a hollow semi-disc shape so as to cover one half circumferential portion of the rotary drum 12, and one end connected to the first case body C1a. It integrally has a first curved portion C1b.
  • the first curved portion C1b is bent and extends at least an intermediate portion (generally in the present embodiment) inward in the axial direction of the handle bar 10 from the first case main portion C1a, that is, the handle post side.
  • a bent end portion Oe of one side (i.e., on the side of the rotary drum 12) of the outer cable O of the first Bowden cable B1 is integrally embedded in the first curved portion C1b.
  • the second case half body C2 is formed in a hollow half disc shape so as to cover the other half circumferential portion of the rotary drum 12, and is fastened to the first case body portion C1a with a bolt 14 And a second bent portion C2b whose one end is connected to the second case main portion C2a.
  • the second curved portion C2b is bent and extends at least an intermediate portion (substantially the entire portion in the present embodiment) inward in the axial direction of the handle bar 10 from the second case main portion C2a, that is, the handle post side.
  • a bent end portion Oe of one side (i.e., on the side of the rotary drum 12) of the outer cable O of the second Bowden cable B2 is integrally embedded in the second bent portion C2b.
  • the opposing facing surfaces of the first and second case main portions C1a and C2a are formed into concave surfaces 51 and 52 having a substantially semicircular arc shape at the central portion corresponding to the handlebar 10, and the concave surfaces 51 and 52 Flat surfaces are formed adjacent to each other on both sides. Then, the handlebar 10 is sandwiched and held between the biconcave curved surfaces 51 and 52, and the flat surfaces facing each other are in direct contact with each other and tightly joined with the bolt 14.
  • a rotation prevention means for example, concavo-convex engagement means
  • the concave curved surfaces 51, 52 are formed on the thick side wall in the axial direction on one side of the first and second case main portions C1a, C2a, while the side wall on the other side in the axial direction
  • substantially semicircular arc-shaped concave curved surfaces 61 and 62 having a diameter slightly larger than that of the concave curved surfaces 51 and 52 are formed.
  • the concave curved surfaces 61 and 62 surround the small diameter inner end 11m of the accelerator grip 11 loosely (therefore, rotatably), and the rotary drum 12 is integrated with the inner end of the small diameter inner end 11m. It will be established continuously.
  • the cross-sectional shape of the above-described concave curved surface 51, 52; 61, 62 may be a strict semi-circular shape, or one concave curved surface 51, 61 may be slightly arced as in the present embodiment. And the other concave surface 52, 62 may be slightly arc-shaped.
  • concave surfaces 41 and 42 recessed from the mating surfaces f1 and f2 are formed in at least one (both in the present embodiment) of the mating surfaces f1 and f2 of the first and second curved portions C1b and C2b.
  • the concave surfaces 41 and 42 are formed in the shape of a concave groove having a substantially U-shaped cross section curved along the longitudinal direction of the first and second curved portions C1b and C2b.
  • a pair of projecting ridges 44 extend along the longitudinal direction of the first and second curved portions C1b and C2b at either the other of the mating surfaces f1 and f2 and on the left and right side edge portions of the concave surfaces 41 and 42.
  • a pair of concave streaks 45 are formed respectively extending and fitted to the pair of convex streaks 44 respectively.
  • the mating surfaces f1 and f2 of the first and second curved portions C1b and C2b are mutually print-fitted by the mutual engagement of the ridges 44 and the grooves 45, and thereby the coupling
  • the shift movement between the first and second bent portions C1b and C2b in the direction along the surfaces f1 and f2 is restricted.
  • the concave surfaces 41 and 42 of the mating surfaces f1 and f2 of the first and second curved portions C1b and C2b gradually become deeper as they approach the first and second case main portions C1a and C2a (that is, the mating surfaces f1 and f2) Gradually incline away from the
  • the inclination of the concave surfaces 41 and 42 is the inclination of the outer surface shape of the first and second curved portions C1b and C2b (more specifically, from the mating surfaces f1 and f2 as they approach the first and second case main portions C1a and C2a) It corresponds to the slope which becomes gradually separated. Accordingly, the curved bottom wall portions 46 and 47 immediately below the concave surfaces 41 and 42 of the first and second curved portions C1b and C2b are similarly inclined with respect to the mating surfaces f1 and f2.
  • the bent end portions Oe of the outer cables O of the first and second Bowden cables B1 and B2 are integrally embedded in the bottom wall portions 46 and 47, respectively.
  • the inner wire I is pulled out substantially in the tangential direction of the rotary drum 12 from the outer cable end portion Oe in the inclined bottom wall portions 46 and 47, so that the inner wire I is wound around the outer periphery of the rotary drum 12 without difficulty. be able to.
  • the concave surfaces 41 and 42 of the mating surfaces f1 and f2 of the first and second curved portions C1b and C2b are protruded from the concave surfaces 41 and 42 and extend so as to cross the concave surfaces 41 and 42 to be spaced apart from each other.
  • a plurality of reinforcing ribs 41a and 42a arranged in a row are integrally formed.
  • the respective reinforcing ribs 41a and 42a couple together the side walls sandwiching the concave surface 41 and 42 of the first and second curved portions C1b and C2b, so the weight reduction of the first and second curved portions C1b and C2b Even if the concave surfaces 41 and 42 are specially provided on the mating surfaces f1 and f2 for the purpose of reducing scrapes, sufficient rigidity and strength can be imparted to the first and second curved portions C1b and C2b. Moreover, since the outer cable end portions Oe of the first and second Bowden cables B1 and B2 are integrally embedded in the first and second bent portions C1b and C2b, the reinforcing ribs 41a and 42a are the outer cable O etc. There is no possibility that it interferes with the assembly work, and the design freedom of the reinforcing ribs 41a and 42a in the mating surfaces f1 and f2 can be increased.
  • At least one raised protrusion 41t, 42t is integrally formed. Further, in the present embodiment, the protrusions 41t and 42t of the one concave surface 41 and 42 are in contact with the protrusions 42t and 41t of the other concave surface 42 and 41, respectively.
  • the protrusions 41t and 42t of the one concave surface 41 and 42 may be in direct contact with the other concave surface 42 and 41 (that is, in contact with portions other than the protrusions 41t and 42t).
  • the outer ends of the first and second curved portions C1b and C2b are the mating surfaces f1 and f2 of the two curved portions C1b and C2b.
  • a connector J made of an elastic material (for example, rubber). That is, on the outer circumferences of the outer end portions of the first and second curved portions C1b and C2b, engaging convex portions 48 and 49 having a diameter larger than the outer circumference of the middle portion are integrally formed.
  • the first and second bent portions 49 are detachably fitted and coupled to the one end opening Ja of the connector J.
  • an annular claw portion Jat engageably and detachably engaged with the engagement convex portions 48 and 49 is integrally protruded.
  • the other end side of the connector J is branched into a bifurcated shape, and from the branch portions Jb, Jb ', a second extending from the outer ends of the first and second bent portions C1b, C2b through the inside of the connector J 1, the outer cables O of the second Bowden cables B1 and B2 are drawn out.
  • the first and second bent portions C1b and C2b are used to position and hold the end portion Oe of the outer cable O in the cavity 70 in the injection molding process of the first and second case halves C1 and C2 described later.
  • Extraction traces h1, h1 ', h2, h2' respectively corresponding to the plurality of positioning projections 81, 81 '; 82, 82' are formed in a dotted manner in plural pairs.
  • the inner wire I passes through the end Oe of the outer cable O into the first case body C1a, and in the second Bowden cable B2, the inner wire I passes through the end Oe of the outer cable O the second case body Each extends in the section C2a.
  • the extension end portions Ie and Ie of the respective inner wires I and I are formed in the drum case C (more specifically, the space between the first and second case main portions C1a and C2a). It is wound in different winding directions around the outer peripheral portion of the rotary drum 12, and is detachably connected to the locking recess of the outer peripheral portion of the rotary drum 12 through the connection terminals 15 and 15, respectively.
  • the outer cable O of the first and second Bowden cables B1 and B2 of the present embodiment includes a liner 3 made of synthetic resin for directly guiding the sliding of the inner wire I, and a hollow shield 4 for accommodating and holding the liner 3. And a synthetic resin sheath 5 covering the outer periphery of the shield 4.
  • the shield 4 of the present embodiment is configured of a hollow strand 22 formed by winding together a plurality of metal wires 21 arranged in close contact with each other around the liner 3.
  • FIG. 3 shows a design example of the first and second Bowden cables B1 and B2 when using the inner wire I having a diameter of 1.0 mm.
  • the diameter of the metal wires 21, 21 ... is 0.4 mm
  • the number of the metal wires 21, 21 ... is 18, the winding pitch of the metal wires 21, 21 ... is 47 to 53 mm
  • the metal wires 21 or 21 The inclining system of ... is about S
  • the outside diameter of the shield 4 is 2.6 mm
  • the outside diameter of the shell 5 is 3.0 mm
  • the weight is 21 g / m. is there.
  • FIG. 10 a design example of the first and second Bowden cables B1 'and B2' of the reference example using the inner wire I having a diameter of 1.0 mm in the same manner as described above is shown in FIG.
  • the thickness of the metal band plate m which is tightly wound in a coil shape to form the shield 04 is 0.5 mm
  • the outer diameter of the shield 04 is 4.0 mm
  • the outer diameter of the outer shell 05 (therefore the outer The outer diameter of the cable O 'is 3.0 mm and the weight is 62 g / m.
  • the outer diameter of 4.0 mm of the shield 04 of the reference example is the limit in forming a coil of a 0.5 mm thick metal strip in close contact, and the outer diameter is less than 4.0 mm.
  • the fact that the outer diameter of the shield 4 of the present embodiment can be made much smaller than the outer diameter of the shield 04 of the reference example means that a plurality of metal wires 21, 21.
  • the hollow strands 22 are formed by arranging them in close contact with each other around 3 and winding them together to form the shield 4.
  • the diameter reduction (about 1 / 1.5 of the reference example) of the shield 4 of this embodiment the diameter reduction of the first and second Bowden cables B1 and B2 (for example, the outer diameter is 3.0 mm or less)
  • weight reduction about 1/3 of the reference example
  • the shield 4 composed of the hollow strands 22 has higher tensile strength and compressive strength and rigidity than the shield 04 of the reference example in which the metal strip plate m is closely wound in a coil shape, the pull operation force of the inner wire I
  • it can sufficiently withstand the push operation force, can increase the transmission efficiency of any operation force, and is also excellent in flexibility, and its use is extremely wide.
  • the shell 5 is previously removed at the outer end of the end portion Oe of the outer cable O to expose the end of the hollow strand 22 from the shell 5 and expand the diameter of the end of the hollow strand 22
  • the first flare portion 23 in which the metal wires 21 are separated is formed.
  • the diameter of the end portion of the liner 3 is also enlarged to form a second flared portion 24 adjacent to the first flared portion 23.
  • the second flared portion 24 is smaller in diameter than the first flared portion 23, and a gap is provided between the second flared portion 24 and the first flared portion 23.
  • the first and second case halves C1 and C2 are injection molded so as to wrap the first and second flared portions 23 and 24 and the end portion of the outer shell 5 particularly at the first and second bent portions C1b and C2b. Ru. At that time, the synthetic resin as the molding material enters the gaps between the metal wires 21 constituting the first flare portion 23 and the first and second flare portions 23 and 24.
  • the first flare portion 23 composed of the large number of discrete metal filaments 21 of the first flare portion 23 and the end of the liner 3 Is deeply embedded in the first and second curved portions C1b and C2b to exert a strong anchor effect, and the coupling strength between the first and second curved portions C1b and C2b and the outer cable end Oe is enhanced.
  • the first and second flare portions 23 and 24 independently become first and second curved portions, respectively.
  • the second flared portion 24 is formed to be smaller in diameter than the first flared portion 23, the space between the metal materials 21 of the first flared portion 23, and the first and second flared portions 23, The penetration of the synthetic resin into the gap 24 is improved, and the anchor effect on the first and second curved portions C1b and C2b of the first and second flared portions 23 and 24 is further enhanced.
  • a mounting stay 31 as a support member is fixed to the throttle body T around the throttle drum 30. End portions of the first and second Bowden cables B1 and B2 on the side of the throttle body T are fixed (for example, crimped) to the end portions of the mounting stay 31 and conventionally known end pieces E1 and E2 and a plurality of nuts It is combined and held via 32.
  • the first and second case halves C1 and C2 that constitute the drum case C in a divided manner are the first and second case main portions C1a and C2a and the first and second curved portions C1b, as described above.
  • C2b is integrally provided, and has a complex three-dimensional solid shape as a whole, and moreover, the curved end portion Oe of the outer cable O is insert-molded in the first and second bent portions C1b and C2b.
  • An example of the injection molding method of the first case half C1 will be described next with reference to FIG.
  • the injection molding method of the second case half C2 is the same.
  • the mold apparatus D includes a plurality of mold elements, for example, a lower mold D1, and an upper mold D2 which can be moved up and down by driving means (not shown) with respect to the lower mold D1, and between the lower mold D1 and the upper mold D2. And a medium size D3 to be sandwiched. Then, a cavity 70 corresponding to the overall shape of the first case half C1 is formed between the lower die D1, the middle die D3 and the upper die D2.
  • the inner surface of the first case half C1 that is, the mating surface f1 with the second case half C2 faces downward, and the outer surface of the first case half C1 (that is, the second case half).
  • the outer surface opposite to C2 is disposed so as to face upward.
  • an uneven shape corresponding to the outer surface shape of the first case half C1 is formed on the opposite surface (lower surface) to the lower mold D1 of the upper mold D2, while the lower mold D1 and the middle mold D3 of the upper mold D2 are formed.
  • An uneven shape corresponding to the inner surface shape of the first case half C1 is formed on each opposing surface (upper surface).
  • a support recess 91 for fitting and supporting the middle die D3 is provided on the surface of the lower die D1 facing the upper die D2, and the middle die D3 is fitted and supported in the support recess 91 for the lower die D1 to obtain an injection. It is held in place before and during molding.
  • the cavity 70 has a case body molding cavity 70a for molding the first case body C1a, and a bent molding cavity 70b for molding the first bending C1b.
  • the portions 70a and 70b directly communicate with each other in the clamped state of the lower mold D1 and the upper mold D2.
  • a sprue (not shown) for introducing the molten resin into the appropriate position of the cavity 70 is formed at an appropriate position of the mold apparatus D, and the molten resin injection means (not shown) is provided at the gate. From there, molten resin in a pressurized state can be supplied to the cavity 70 as needed.
  • the mold device D of the present embodiment forms the bent portion Oe
  • a plurality of pairs of first and second positioning protrusions 81, 81 'and 82, 82' are provided which can be positioned and held in cooperation with each other with respect to the cavity 70b.
  • Each positioning projection 81, 81 '; 82, 82' consists of an elongated cylindrical pin.
  • a plurality of pairs of first positioning projections 81, 81 ' are used to form the outer cable end Oe with respect to the curved portion molding cavity 70b, and a mating surface f1 of the first curved portion C1b with the second curved portion C2b, It is possible to position and hold the end portions Oe so as to sandwich the end portions Oe in a direction along the mating surface of the D1 and the upper die D2 (more specifically, a direction crossing the curved portion molding cavity 70b).
  • the first positioning protrusions 81 and 81 ' are provided so as to protrude upward on the surface (upper surface) opposite to the upper die D2 of the lower die D1.
  • the second positioning projection 82, 82 ' has a portion 82 (half in the present embodiment) projecting upward on the surface (upper surface) facing the upper die D2 of the lower die D1, and the remaining 82'.
  • the other half in this embodiment, the other half is projected downward on the surface (lower surface) opposite to the lower die D1 of the upper die D2.
  • the number of the marks h1, h1 '; h2 appearing on the surface (that is, the inner surface) of the first curved portion C1b on the side of the mating surface f1 with the second curved portion C2b is the second number of the first curved portion C1b.
  • the number is larger than the number of marks h2 'appearing on the surface (i.e., the outer surface) opposite to the curved portion C2b.
  • the trace h2 'appearing on the outer surface of the first curved portion C1b opposite to the second curved portion C2b corresponds to the mating surface of the first curved portion C1b with the second curved portion C2b. It is only the removal mark h2 'of the second positioning projection 82' which engages with the end Oe from the opposite side to f1, and the removal marks h1, h1 'and h2 of the other positioning projections 81, 81' and 82 are all It appears on the mating surface f1 side.
  • the mold apparatus D includes a plurality of each for positioning and holding the outer cable end portion Oe in cooperation with each other with respect to the bending portion molding cavity portion 70b during injection molding of the first case half C1. Since the pair of first and second positioning projections 81, 81 'and 82, 82' are provided, the outer cable end Oe is properly positioned and held with respect to the first bending portion molding cavity 70b during injection molding thereof. The formability of one curved portion C1b is improved.
  • marks h1, h1 '; h2, h2' of the first and second positioning protrusions 81, 81 '; 82, 82' after the injection molding is completed appear
  • the number of the marks h1, h1 'and h2 appearing on the surface (inner surface) on the side of the mating surface f1 of the first curved portion C1b with the second curved portion C2b is the second bending of the first curved portion C1b.
  • the first after the injection molding The second curved portion C2b joined to the first curved portion C1b when the second case halves C1 and C2 are joined can be well covered. As a result, it is possible to reduce the trace h2 'appearing on the outer surface of the first curved portion C1b in the used state of the cable device CA, and to effectively suppress the influence on the device appearance.
  • the trace h2 'appearing on the surface (outer surface) of the first curved portion C1b opposite to the second curved portion C2b is the second curved portion of the first curved portion C1b. It is only a removal mark h2 'of the second positioning projection 82' which engages with the outer cable end Oe from the opposite side to the mating surface f1 with the bent portion C2b.
  • the injection molding of the first case half C1 is made to inject a synthetic resin in a molten state into the cavity 70 in a state in which the core for shape retention R having flexibility is inserted in advance into the liner 3 of the outer cable O. It is desirable to be done. In that case, the core material R for shape retention is withdrawn from the inside of the liner 3 after injection molding, and the inner wire I is inserted into the liner 3 instead.
  • the shape-retaining core R in the illustrated example, a rope made of a material (for example, nylon, stainless steel, etc.) that does not deform even by injection molding pressure is used.
  • the outer diameter of the shape-retaining core R is selected to be slightly smaller than the inner diameter of the liner 3 of the outer cable O. Therefore, the shape-retaining core R smoothly slides in the liner 3 and is removed. It is possible.
  • base end part Ra of core material R for shape retention is couple
  • concave grooves 71 and 72 having a semicircular arc cross-section capable of sandwiching the shape-retaining core material R from above and below are respectively formed on opposing surfaces of the lower die D1 and the upper die D2 to be opposed to each other.
  • the shape-retaining core R is inserted into the liner 3 of the outer cable O from the tip end side of the core, and the insertion work is performed before injection molding of the first case half C1 (more specifically, Before setting the end portion Oe of the outer cable O on the lower die D1). Therefore, at the time of injection molding of the first case half C1, the outer cable O into which the shape-retaining core R is inserted can sufficiently withstand the injection molding pressure. Thereby, for example, even if the outer cable O has a relatively small diameter and low rigidity, or the outer thin film 5 has a flat thin portion formed by bending the outer cable O, the outer cable O is crushed due to high molding pressure. Since it is possible to effectively prevent the shape-retaining core material R from deforming, in the state where the inner wire I is inserted through the outer cable O after injection molding, the slidability of the inner wire I and hence the operation feeling are effectively enhanced. Be
  • the first Bowden cable B1 removes the sheath 5 at the outer end of the end portion Oe of the outer cable O on the throttle grip 11 side as shown in FIG.
  • a first flare portion 23 in which the metal wires 21 are separated is formed, and the diameter of the end of the liner 3 is also expanded.
  • the second flare portion 24 adjacent to the first flare portion 23 is formed.
  • the outer cable O is inserted from the distal end side of the shape-retaining core material R coupled to the middle-sized D3 with the first and second flared portions 23, 24 first.
  • the insertion is a second flare of the tapered cylindrical projection 93 which is provided on one side of the medium-sized D3 on the curved portion molding cavity 70b side to surround the shape-retaining core material R.
  • the insertion limit position is defined by being fitted and engaged so as to bite into the base inner periphery of the portion 24.
  • the cylindrical protrusion 93 of the medium size D3 also functions to prevent the molten synthetic resin from intruding into the liner 3 of the outer cable O at the time of injection molding.
  • the medium size D3 is set on the lower mold D1 together with the shape-retaining core R and the outer cable O, that is, the lower end of the medium D3 is fitted in the support recess 91 on the upper surface of the lower mold D1.
  • the end portion Oe of the outer cable O is set on a molding surface corresponding to the bending portion molding cavity 70b on the upper surface of the lower die D1 while being bent.
  • the end portion Oe of the outer cable O is positioned and held at a predetermined position on the molding surface by the plurality of pairs of first positioning protrusions 81 and 81 'which stand on the upper surface of the lower die D1.
  • upper die D2 is placed on lower die D1 with middle die D3 interposed therebetween, and a cavity 70 is defined between the lower die D1, middle die D3 and upper die D2.
  • the end portion Oe of the outer cable O is positioned and held in the vertical direction in the bending portion forming cavity portion 70b by the upper and lower pairs of second positioning protrusions 82 and 82 'protruding from the upper and lower dies D2 and D1. .
  • a synthetic resin in a molten state is pressure-injected into the cavity 70 from a gate (not shown), whereby the first case half C1 corresponding to the cavity 70 is injection-molded.
  • the upper die D2 is raised to separate from the lower die D1 and the middle die D3, and then the middle die D3 is raised together with the lower die D1 to form the middle die D3 and the middle die D3.
  • the medium-sized D3 is pulled out from the molded product in the direction along the axis of the cylindrical protrusion 93, and at the same time, the shape-retaining core R is pulled out from the outer cable O of the first Bowden cable B1.
  • the first case half C1 is obtained. And injection molding, but the description is omitted.
  • the inner wire I is inserted into the outer cables O in which the end portions Oe are embedded and integrated into the first and second case halves C1 and C2 which are injection molded as described above. It can be used as the second Bowden cables B1 and B2.
  • the first case main body portion C1a covering one half circumference side of the rotary drum 12, and the curved outer cable end portion of the first Bowden cable B1
  • the first case half C1 integrating the first curved portion C1b integrally embedded with Oe
  • the second case body C2a covering the other half circumference side of the rotary drum 12, and the second Bowden cable B2
  • the number of parts and the number of processing steps are reduced as a whole, and the size and weight of each part of the device can be reduced, so that a small and lightweight cable device CA can be obtained at low cost.
  • both of the two bend portions C1b and C2b It is not necessary to specially insert the outer cable end Oe or the bent resin tube connected to it through the mating surfaces f1 and f2 and the design freedom of the configuration structure of the mating surfaces f1 and f2 is expanded and the design is easy. Become.
  • the outer cable end portions Oe of the first and second Bowden cables B1 and B2 are embedded in the first and second bent portions C1b and C2b, respectively.
  • the first and second bent portions C1b and C2b can be provided for the compression load on the rotary drum 12 side without special intervention of the mechanical engagement means (load transmission means). Can be firmly received mechanically, and the structure can be simplified.
  • the cable device CA is applied to the throttle valve operation system of the motorcycle engine, but the cable device CA of the present invention is also applied to operation systems other than the throttle valve operation system of the vehicle. It is possible and applicable to various operation systems other than vehicles.
  • the shield 4 of the outer cable O a hollow strand formed by winding a plurality of metal wires 21 arranged to be in close contact with each other around the liner 3 is shown.
  • the first feature of the outer cable is not limited to the embodiment, and for example, a metal strip plate m as in the reference example illustrated in FIG. 11 is closely wound around the outer periphery of the liner 03 in a coil shape. It may be used as a shield.

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

Abstract

L'invention concerne un dispositif à câbles comprenant une enveloppe de tambour en résine synthétique conçue pour être divisée en une première et une seconde demi-enveloppe, un premier câble Bowden souple pouvant être tiré par rotation, dans une direction, d'un tambour rotatif pouvant être logé dans l'enveloppe de tambour, et un second câble Bowden souple pouvant être tiré par rotation du tambour rotatif dans l'autre direction. Les première et seconde demi-enveloppes (C1, C2) présentent une section de corps principal (C1a, C2a) d'enveloppe recouvrant une partie semi-circulaire du tambour rotatif (12) et une section incurvée (C1b, C2b) prenant une forme s'incurvant de façon à se conformer sensiblement à une partie terminale incurvée (Oe) du câble externe (O) des premier et second câbles Bowden (B1, B2), et dans laquelle la partie terminale est intégrée d'un seul tenant. Les fils internes (I) des premier et second câbles Bowden s'étendent à l'intérieur des première et seconde sections de corps principal d'enveloppe, et leurs parties d'extrémité étendues (Ie) sont reliées au tambour rotatif à l'intérieur de l'enveloppe de tambour (C). Ainsi, le nombre de pièces peut être réduit, le dispositif est plus facile à assembler et plus compact et léger, et le coût est réduit.
PCT/JP2017/044722 2017-09-20 2017-12-13 Dispositif à câbles et son procédé de fabrication Ceased WO2019058568A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR112018071732-0A BR112018071732B1 (pt) 2017-09-20 2017-12-13 Dispositivo de cabos e método para fabricação dele
CN201780026957.5A CN109819666B (zh) 2017-09-20 2017-12-13 线缆装置及其制造方法
PH12018502121A PH12018502121A1 (en) 2017-09-20 2018-10-02 Cable device and method for manufacturing same

Applications Claiming Priority (2)

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JP2017-180405 2017-09-20
JP2017180405A JP6357269B1 (ja) 2017-09-20 2017-09-20 ケーブル装置及びその製造方法

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CN (1) CN109819666B (fr)
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100089365A1 (en) * 2008-10-15 2010-04-15 Steven Richard Scott Variable rate push/pull twist throttle
WO2014188527A1 (fr) * 2013-05-22 2014-11-27 本田技研工業株式会社 Structure d'unités de fonctionnement destinée à un véhicule du type à selle
JP2016183745A (ja) * 2015-03-26 2016-10-20 やまと興業株式会社 ボーデンケーブルの端末構造
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2804277B2 (ja) * 1988-12-28 1998-09-24 日本ケーブル・システム株式会社 コントロールケーブル
CN202579614U (zh) * 2012-04-27 2012-12-05 上海蓝恩控制系统有限公司 一种带有肋条的拉索套管
CN202628756U (zh) * 2012-06-05 2012-12-26 重庆海德世拉索系统（集团）有限公司 换挡拉索的套管帽组合结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100089365A1 (en) * 2008-10-15 2010-04-15 Steven Richard Scott Variable rate push/pull twist throttle
WO2014188527A1 (fr) * 2013-05-22 2014-11-27 本田技研工業株式会社 Structure d'unités de fonctionnement destinée à un véhicule du type à selle
JP2016183745A (ja) * 2015-03-26 2016-10-20 やまと興業株式会社 ボーデンケーブルの端末構造
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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BR112018071732A2 (pt) 2020-04-07
JP6357269B1 (ja) 2018-07-11
JP2019056401A (ja) 2019-04-11
CN109819666A (zh) 2019-05-28
CN109819666B (zh) 2021-06-18

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