JP2011169343A - Wire operating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire operating device which keeps an operational force of pushing a wire rope equal to that of pulling it by suppressing bending of the wire rope against compression when pushed, to secure the strength. <P>SOLUTION: The wire operating device includes a driving side pulley 2 stored in a pulley storage recessed portion 7 of a driving side base 6, a driven side pulley 3 stored in a pulley storage recessed portion 7 of a driven side base 6, and one wire rope 4 wound on the driving side pulley 2 and driven side pulley 3. On the front face of a pulley body 2a of each pulley facing the bottom face of the pulley storage recessed portion 7, an annular guide groove 21 is formed all over the periphery. A wire rope insertion hole 17 is formed to be obliquely communicated with a range from the outside of each base 6 to the bottom face of the peripheral edge of the pulley storage recessed portion 7. The wire rope 4 is arranged along the inside of the annular guide groove 21, with one end fixed to the pulley body 2a and its intermediate part passing through the wire insertion hole 17. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention is, for example, a door drive mechanism for a vehicle air conditioner or a power transmission mechanism for remotely transmitting power input manually, and includes a drive-side pulley driven and rotated by power, and power transmission. A driven pulley that includes a driven pulley that is driven to rotate, both ends connected to the driven pulley and the driven pulley, and a single wire rope wound around the driven pulley and the driven pulley; The wire rope is wound around the drive pulley by the rotation of the wire rope, and the wire rope is pulled out from the outer periphery of the driven pulley to rotate the driven pulley.

  Conventionally, for example, in a door drive mechanism of a vehicle air conditioner, when performing a manual remote operation, the power transmission mechanism on the drive side and the driven side uses two wire ropes, A door drive mechanism that transmits power to an air conditioning case side pulley in a pulling direction with each wire rope in a counterclockwise direction is known (Patent Document 1).

  Further, a winding drum having a lever projecting on a fixed base fixed to the handle or the like of the operation unit is pivotally attached, and one end of the outer tube is connected to the outer end of the guide wall protruding to the outside of the fixed base. The inner cable of the outer tube protruding to the back side of the guide wall is wound in the outer circumferential groove of the winding drum, the tip is attached to the lever, and the inner cable is expanded and contracted by rotating the winding drum with lever. A cable operation lever is widely known (Patent Document 2).

  In Patent Document 2, in the above-described configuration, a ring fitted to the upper surface of the winding drum is interposed between the winding drum and a tightening cap that pivotally mounts the winding drum on the fixed base, and a lever on the outer peripheral edge of the ring. A pair of left and right protrusions projecting from the both sides of the base end portion toward the outer side of the outer circumferential groove, and the one projecting piece on the outer side of the outer circumferential groove between the lever base end and the guide wall guides the winding drum Disclosed is a cable operating lever formed with a projecting piece-like cover for preventing a part of the wound inner cable from being bent into a loop outwardly protruding from the outer circumferential groove when rotating in the wall direction. Has been.

  Furthermore, in FIG. 10, both ends are connected to the driving pulley 30 driven and rotated by power, the driven pulley 31 driven and rotated by power transmission, and the driving pulley 30 and the driven pulley 31. A wire rope 32 wound around the outer periphery of the driving pulley 30 and the outer periphery of the driven pulley 31, and the wire rope 32 is driven by the counterclockwise rotation of the driving pulley 30. The wire rope 32 is pulled out from the outer periphery of the driven pulley 31 and the driven pulley 31 is rotated counterclockwise, and the wire rope 32 is rotated by the clockwise rotation of the driving pulley 30. While being pushed out from the outer periphery of the driving pulley, the wire rope 32 is pushed into the outer periphery of the driven pulley 31 and the driven pulley 31 is rotated clockwise. The operating device is shown.

Japanese Patent No. 3960844 Japanese Patent No. 2883303

  In the type using the two wire ropes disclosed in Patent Document 1, in order to minimize the delay on the driving side with respect to the input, in addition to the length accuracy of the left and right when arranging the two wire ropes, the applied tension ( Subtle adjustments are also required in (wire tension).

  The cable operation lever disclosed in Patent Document 2 is such that the winding drum and the projecting piece-like cover rotate integrally, and when the winding drum is rotated in the direction of feeding out the cable, the position where the rotation is possible is Therefore, the side end of the projecting piece-shaped cover facing in the turning direction is restricted to a position where the cable is guided linearly with respect to the cable introduction hole on the back side of the guide wall, and the turnable angle of the winding drum is It is difficult to secure a wide range because it is limited to a narrow range. According to the drawing, the rotatable angle of the winding drum is at most about 45 degrees.

  Further, the cable operation lever disclosed in Patent Document 2 is a necessary part such as a ring formed with a projecting piece cover, a spring washer for holding the ring, a tightening cap overlying the spring washer, and a nut for tightening the tightening cap toward the base. The structure is also complicated.

  Since the wire operating device shown in FIG. 10 withstands the compressive force applied to the wire rope in the direction of the pressing force, considering the buckling of the wire rope, the wire rope having a certain degree of stiffness and waist (for example, about φ1.2 mm) A metal cable) is necessary, and extreme bending is not possible for arranging this cable, and a bending radius of at least about 200 mm is necessary.

  Further, in order to minimize the difference in force transmission between the case of the pushing force of the wire rope 32 and the case of the pulling force, it is provided on the outer periphery of the pulley for winding the wire rope 32 as shown in FIG. The clearance between the V-shaped circumferential groove 33 and the guide wall 35 of the pedestal 34 is minimized, but requires component accuracy. Further, in the case of the pushing force of the wire rope 32, a load (referred to as sliding loss) is generated on the wire rope 32 due to the wire rope 32 coming into contact with the guide wall 35 of the pedestal 34 and sliding. And the pulling force could not make the difference in force the same.

  The present invention solves the problems of the conventional cable operating device described above, and when the wire rope is pushed, it can bend against compression and ensure strength, and when the wire rope is pushed and pulled. An object of the present invention is to provide a wire operating device that can equalize the operating force in the case.

  The wire operating device according to claim 1 includes a drive side pulley housed in a pulley housing recess provided on the back surface of the drive side pedestal, and a driven side pulley housed in a pulley housing recess provided on the back surface of the driven side pedestal. And both ends of the drive-side pulley and the driven-side pulley are coupled to each other, and one wire rope wound around the drive-side pulley and the driven-side pulley. By applying a rotational force, the driven pulley rotates following the one wire rope, and in order to solve the above problem, the pulley facing the bottom surface of each pulley housing recess An annular guide groove is formed over the entire periphery of the front surface of the pulley body of each pulley, and the wire rope is inclined and communicated from the outer portion of the pedestal to the bottom surface of the peripheral portion of each pulley housing recess. Insertion hole The wire rope is disposed along the inside of the annular guide groove, one end of the wire rope is fixed to the pulley body, and an intermediate portion thereof passes through the wire rope insertion hole. .

  A wire operation device according to a second aspect is the wire operation device according to the first aspect, wherein the wire rope is movably inserted into an outer tube disposed coaxially with the wire rope, An outer tube insertion hole that is inclined from the front outer side toward the bottom surface of the peripheral edge of the pulley housing recess is formed, and the wire rope insertion hole extends from the tip of the outer tube introduction hole to the bottom surface of the peripheral edge of the pulley storage recess. The outer tube is inserted into the outer tube insertion hole and is disposed at an inclination, and an intermediate portion of the wire rope passing through the wire rope insertion hole is disposed at an inclination. It is characterized by.

  According to a third aspect of the present invention, there is provided the wire operating device according to the first or second aspect, wherein the pulley accommodating recess is disposed in a direction toward the circumferential direction of the pulley accommodating recess in the vicinity of the outlet of the wire rope insertion hole. An inclined portion that inclines toward the inside of the guide groove from the bottom surface is formed to protrude, and an intermediate portion of the wire rope is guided into the guide groove along the inclined portion. .

  A wire operation device according to a fourth aspect is the wire operation device according to any one of the first to third aspects, wherein an outer diameter of the wire rope is equal to a groove width of the guide groove, and the wire rope is The guide groove is closely fitted to the guide groove.

  A wire operation device according to a fifth aspect is the wire operation device according to any one of the first to fourth aspects, wherein a wire rope locking hole for fixing one end of the wire rope to the guide groove is provided. It is provided.

  According to the wire operating device of the first aspect, the wire rope is compressed when the wire rope is pushed by the circular guide groove provided on the front surface of the pulley body facing the bottom surface of the pulley housing recess of the pedestal. The strength of the wire rope can be secured by pushing against the bending of the wire rope, and the wire rope pushing and pulling load is applied to the shaft of the pulley rotation. can do.

  In addition, since the operation is performed with one wire rope, the rotation angle of the pulley required for power transmission can be taken close to 360 degrees, and the rotation angle of the pulley can be increased as compared with the double pulling type of two wire ropes. Widely secured. Furthermore, since the positional accuracy of the driving pulley and the driven pulley is only the dimensional accuracy of the end portion to be caulked by one wire rope, the positioning becomes easy.

  According to the wire operating device of the second aspect, when the wire rope is introduced into the circular guide groove provided in the pulley body, the wire rope can be introduced while being inclined with respect to the pulley body.

  According to the wire operating device of the third aspect, the wire rope can be guided in an inclined state inside the circular guide groove provided in the pulley body.

  According to the wire operating device of the fourth aspect, there is no backlash when the wire rope is pushed and pulled, and the delay of the driven pulley can be eliminated.

  According to the wire operating device of the fifth aspect, the wire rope is arranged along the inside of the circular guide groove provided in the pulley body by rotating the pulley body with respect to the pedestal. Winding can be performed easily.

It is a front view of the wire operation device concerning the embodiment of the present invention. It is a reverse view of a base. It is sectional drawing of the base in the BB line of FIG. FIG. 3 is a side view showing a part of a circular protruding wall from the CC direction of FIG. 2. It is sectional drawing in the AA of FIG. It is a front view of a pulley main body. It is sectional drawing of the pulley main body in the DD line | wire of FIG. It is an expanded sectional view in the FF line of FIG. It is an expanded sectional view in the EE line of FIG. It is a top view of the push-pull type wire operation apparatus using the conventional one wire rope. It is principal part sectional drawing of the push-pull type wire operation apparatus of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a wire operating device according to an embodiment of the present invention. The wire operating device 1 includes, for example, a driving pulley 2 driven and rotated by power by manual operation, a driven pulley 3 driven and rotated by power transmission, and both ends of the driving pulley 2 and the driven pulley 3. The wire rope 4 is connected to the outer periphery of the driving pulley 2 and the outer periphery of the driven pulley 3. An outer tube 5 is disposed coaxially with the wire rope 4 on the outer periphery of the wire rope 4, and the wire rope 4 is movably inserted into the outer tube 5. Although the drive side pulley 2 and the driven side pulley 3 are provided with reference numerals in order to distinguish them in terms of function, the structures of both pulleys are the same, and in the following description, description will be made using the pulley body 2a.

  The disc-shaped pulley body 2a is rotatably supported by the pedestal 6. FIG. 2 is a rear view of the pedestal 6, and FIG. 3 is a cross-sectional view of the pedestal 6 taken along the line BB in FIG. As shown in FIGS. 2 to 3, a pulley housing recess 7 formed of a circular recess that is slightly larger than the outer periphery of the pulley body 2 a is provided in the approximate center of the back surface of the base 6. In addition, in one of the cases where the pulley housing recess 7 is divided into four equal parts, a protruding portion 8 that protrudes outward in a rectangular shape is formed integrally with the base 6. A shaft hole 9 is formed in the center of the bottom surface 7 a of the pulley housing recess 7, and a screw hole 10 having a diameter larger than the diameter of the shaft hole 9 is provided below the shaft hole 9. An annular circular protruding wall 12 rising from the bottom surface 7 a of the pulley housing recess 7 is formed along the guide wall 11 at the peripheral edge of the pulley housing recess 7 that is inside the annular guide wall 11 that surrounds the pulley housing recess 7. ing.

  FIG. 4 is a side view showing a part of the circular protruding wall 12 as viewed from the CC direction of FIG. The circular protruding wall 12 facing the other side of the overhanging portion 8 is formed with a notched portion 13 in which the circular protruding wall 12 is partially cut away, and the circular protruding wall 12 positioned in the counterclockwise direction of the notched portion 13 is formed. An inclined portion 14 that is inclined from the bottom surface 7a of the pulley housing recess 7 toward the upper end of the circular protruding wall 12 is formed at the end portion in the circumferential direction.

  FIG. 5 is a cross-sectional view taken along line AA in FIG. As shown in FIG. 2, an oblong outer tube support groove 15 is formed on the front surface of the overhanging portion 8 at one side end, and the front end of the outer tube support groove 15 is inclined toward the back surface. An outer tube insertion hole 16 is formed, and a wire rope insertion hole 17 inclined toward the notch 13 (FIG. 2) of the circular protruding wall 12 is formed at the tip of the outer tube insertion hole 16. With this configuration, the wire rope insertion hole 17 communicates with the outer portion of the base 6. Further, as shown in FIG. 1, a screw hole 18 is provided at a position close to the outer tube support groove 15 near one end of the front surface of the overhang portion 8.

  FIG. 6 is a front view of the pulley body 2a. FIG. 7 is a cross-sectional view of the pulley body 2a taken along line DD in FIG. FIG. 8 is an enlarged sectional view taken along line FF in FIG. A shaft portion 19 protrudes from the center of the front surface of the pulley body 2 a facing the bottom surface 7 a of the pulley housing recess 7 of the base 6, and a screw hole 20 communicating with the end surface of the shaft portion 19 is provided inside the shaft portion 19. It has been. An annular guide groove 21 is formed over the entire periphery of the peripheral edge of the front surface of the pulley body 2a, which is a position corresponding to the circular protruding wall 12 rising from the bottom surface 7a of the pulley housing recess 7. Further, a wire rope locking hole 22 penetrating the back surface of the pulley body 2a is provided at one position on the bottom of the guide groove 21 (FIGS. 6 and 8). An operation knob 23 is formed on the back surface of the driving pulley 2 (FIG. 7).

[Assembly of wire operating device 1]
The tip of the wire rope 4 is inserted into a wire rope insertion hole 17 at the back of the outer tube insertion hole 16 formed in the overhanging portion 8 of the pedestal 6, and from the notched portion 13 of the circular protruding wall 12 on the back surface of the pedestal 6. Project (see FIG. 5). Further, the tip of the wire rope 4 is inserted from the front surface of the pulley body 2a into the wire rope locking hole 22 (FIGS. 6 and 8) in the guide groove 21 and protrudes from the back surface of the driving pulley 2, and the protruded wire rope. 4 is bent and locked to the back surface of the pulley body 2a. Instead of this, a crimping terminal may be provided at one end of the wire rope 4 and the crimping terminal may be press-fitted into the wire rope locking hole 22 and fixed.

  The distal end portion of the outer tube 5 is inserted into the outer tube insertion hole 16 formed in the overhanging portion 8 of the base 6, and the portion behind the distal end portion of the outer tube 5 is fitted along the outer tube support groove 15. Then, a screw (not shown) is screwed into the screw hole 18 and the outer tube 5 is prevented from coming off by the head of the screw. As a result, the outer tube 5 is inserted into the outer tube insertion hole 16 and is inclined, and an intermediate portion of the wire rope 4 passing through the wire rope insertion hole 17 is inclined. In addition, the wire extends along the inclined portion 14 that inclines toward the inside of the guide groove 21 from the bottom surface 7a of the pulley housing recess 7 in the direction close to the outlet of the wire rope insertion hole 17 and toward the circumferential direction of the pulley housing recess 7 An intermediate portion of the rope 4 is guided into the guide groove 21.

  The shaft portion 19 of the pulley body 2 a is inserted into the shaft hole 9 at the center of the bottom surface 7 a of the pulley housing recess 7 of the pedestal 6, and the pulley body 2 a is rotatably arranged inside the pulley housing recess 7 of the pedestal 6. By rotating the pulley body 2a in the clockwise direction of FIG. 1 with respect to the base 6, the wire rope 4 is disposed along the inside of the circular guide groove 21 provided in the pulley body 2a, and the wire rope 4 is wound. Can be easily performed. FIG. 9 is an enlarged cross-sectional view taken along line EE in FIG. As shown in FIG. 9, the circular protruding wall 12 rising from the bottom surface 7 a of the pulley housing recess 7 is fitted into the front end portion of the guide groove 21 from the front, and the wire rope 4 is prevented from coming out of the guide groove 21.

  Then, the screw 24 is screwed into the screw hole 20 of the shaft portion 19 of the pulley body 2a from the screw hole 10 provided in the center of the pedestal 6 from the front, and the pulley body 2a is rotatably supported in the pulley housing recess 7 of the pedestal 6. . The configuration and assembly of the driven pulley 3 are the same as those of the driving pulley 2.

[Action]
As the driving pulley 2 rotates counterclockwise, the wire rope 4 is wound around the guide groove 21 of the driving pulley 2 and the wire rope 4 is pulled out from the outer periphery of the driven pulley 3 to cause the driven pulley 3 to move counterclockwise. It is rotated clockwise. Further, the wire rope 4 is pushed out from the guide groove 21 of the driving pulley 2 by the rotation of the driving pulley 2 in the clockwise direction, and the wire rope 4 is pushed into the guide groove 21 of the driven pulley 3 to be driven pulley 3. Is rotated clockwise. Since the sliding of the wire rope 4 is performed along the inclined portion 14 inclined from the bottom surface 7a of the pulley housing recess 7 to the upper end of the circular protruding wall 12 in the circumferential direction, the wire rope 4 moves smoothly.

  The groove width of the guide groove 21 is formed to be equal to the outer diameter of the wire rope 4, and the wire rope 4 is closely fitted into the guide groove 21, so that the play when the wire rope 4 is pushed and pulled is loose. The delay of the driven pulley can be eliminated. The wire rope 4 runs along a circular guide groove 21 provided on the front surface of the pulley body 2a of the driving pulley 2 facing the bottom surface 7a of the pulley housing recess 7 of the pedestal 6 so that the wire rope 4 is compressed when pressed. In contrast, strength can be secured by suppressing bending. The pushing and pulling of the wire rope 4 also becomes a load applied to the shaft portion 19 of the rotation of the pulley body 2a of the driving pulley 2, so that the operating force is equal in the case of pushing the wire rope 4 and the case of pulling. Can do.

DESCRIPTION OF SYMBOLS 1 Wire operation apparatus 2 Drive side pulley 2a Pulley main body 3 Driven side pulley 4 Wire rope 5 Outer tube 6 Base 7 Pulley accommodating recessed part 7a Bottom surface 8 Overhang part 9 Shaft hole 10 Screw hole 11 Guide wall 12 Circular protrusion wall 13 Notch part DESCRIPTION OF SYMBOLS 14 Inclination part 15 Outer tube support groove 16 Outer tube insertion hole 17 Wire rope insertion hole 18 Screw hole 19 Shaft part 20 Screw hole 21 Guide groove 22 Wire rope locking hole 23 Knob part 24 Screw 30 Drive side pulley 31 Driven side pulley 32 Wire rope 33 Circumferential groove 34 Base 35 Guide wall

Claims (5)

A driving pulley housed in a pulley housing recess provided on the back surface of the driving base;
A driven pulley housed in a pulley housing recess provided on the back surface of the driven pedestal;
Both ends are connected to the driving pulley and the driven pulley, and a single wire rope wound around the driving pulley and the driven pulley,
In the wire operation device in which the driven pulley follows and rotates through the one wire rope by applying a rotational force to the driving pulley,
An annular guide groove is formed over the entire circumference on the peripheral edge of the front surface of the pulley body of each pulley facing the bottom surface of each pulley housing recess,
A wire rope insertion hole that is inclined and communicated from the outer side of the pedestal to the bottom surface of the peripheral edge of each pulley housing recess is formed.
The wire rope is disposed along the inside of the annular guide groove, one end thereof is fixed to the pulley body, and an intermediate portion thereof passes through the wire rope insertion hole.
A wire operating device. The wire rope is movably inserted into an outer tube disposed coaxially with the wire rope,
An outer tube insertion hole that is inclined from the front outer side of the pedestal toward the bottom surface of the peripheral edge of the pulley housing recess is formed,
The wire rope insertion hole is formed to be inclined from the tip of the outer tube introduction hole toward the bottom surface of the peripheral edge of the pulley housing recess,
The outer tube is inserted into the outer tube insertion hole and is inclined, and an intermediate portion of the wire rope passing through the wire rope insertion hole is inclined.
The wire operating device according to claim 1. In the vicinity of the outlet of the wire rope insertion hole, an inclined portion that inclines toward the inside of the guide groove from the bottom surface of the pulley housing recess in a direction facing the circumferential direction of the pulley housing recess is formed to protrude.
An intermediate portion of the wire rope is guided into the guide groove along the inclined portion;
The wire operating device according to claim 1 or 2, wherein The outer diameter of the wire rope is equal to the groove width of the guide groove, and the wire rope is closely fitted in the guide groove. Wire operating device. The wire operating device according to any one of claims 1 to 4, wherein a wire rope locking hole for fixing one end portion of the wire rope is provided in the guide groove.

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