JP2017048653A - Driving device for opening/closing body for vehicle and method of manufacturing driving device for opening/closing body for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving device for an opening/closing body for a vehicle that is superior in productivity, and a method of manufacturing the same.SOLUTION: An outer tube insert part which is formed as a part of a housing member housing a wire winding member or a wire guide member having a wire guide groove, and into which an end of an outer tube having a wire inserted inside is inserted is provided with an insert part opening that penetrating to a radial direction of the outer tube, a fall stopper part which stops the outer tube from falling from the insert part opening, and a through hole located at a radial position opposed to the fall stopper part. The housing member has a housing part opening, open in the same direction with any of the insert part opening and through hole, formed in the housing part housing the wire winding member. The wire guide member has an opening, connecting with the insert part opening, formed in the wire guide groove. Consequently, the housing member and wire guide member can be produced with the insert part opening of the outer tube insert part and a mold moving relatively in the opening direction of the through hole.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a driving device for an opening / closing body mounted on a vehicle and a manufacturing method thereof.

  In drive devices for automotive opening and closing bodies such as window regulators that raise and lower the window glass and door opening and closing devices that open and close sliding doors, the operation wire is inserted into the tubular outer tube to guide the wire so that it can be advanced and retracted. And the structure which drives an opening-closing body (window glass and a slide door) by the movement of a wire is used abundantly. The outer tube is connected to a housing member that rotatably supports a drum and a pulley around which the wire is wound, a wire guide member having a guide groove for guiding the wire, and the like.

JP 2007-315101 A

  This type of housing member or wire guide member has an outer tube insertion portion for inserting an end portion of the outer tube. The outer tube insertion portion is a concave portion that allows the outer tube to be inserted in the axial direction. When the housing member and the wire guide member are molded by a mold that moves in a predetermined direction, the outer tube insertion section has a direction different from the mold release direction. When the concave direction of the outer tube insertion portion is directed toward (the axial direction of the outer tube inserted into the outer tube insertion portion), another mold that moves in the concave direction is required. There is a problem that the structure becomes complicated and the number of work steps at the time of molding increases.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a drive device for a vehicle opening / closing body that is excellent in productivity and a manufacturing method thereof.

  The present invention includes an outer tube having a wire inserted therein, a winding member that winds the wire, and a housing member that houses the winding member in the housing portion and inserts the end portion of the outer tube into the outer tube insertion portion. And a driving device for a vehicle opening / closing body that opens and closes the opening / closing body by driving a wire. The winding member is supported by the housing portion of the housing member so as to be rotatable about a rotation axis facing in the vertical direction, and the end portion of the outer tube is inserted in a direction intersecting the vertical direction with respect to the outer tube insertion portion. . The housing member has an insertion portion opening facing upward in the outer tube insertion portion, and the housing portion has a housing portion opening facing upward or downward. Furthermore, the outer tube insertion portion has a retaining portion that prevents the outer tube from coming off upward from the opening of the insertion portion, and a through-hole that faces downward with respect to the retaining portion, and is viewed in the vertical direction. Thus, a configuration is adopted in which the retaining portion is located within the range of the outer shape of the through hole.

  The present invention also includes an outer tube through which the wire is inserted, and a wire guide member that guides the wire by the guide groove and inserts the end of the outer tube into the outer tube insertion portion, and the wire is driven. The present invention is directed to a drive device for a vehicle opening / closing body that opens and closes the opening / closing body. The wire guide member has an insertion portion opening in the outer tube insertion portion that faces the first direction in the radial direction of the outer tube, and an opening is formed in the guide groove continuously to the insertion portion opening. Further, the outer tube insertion portion includes a retaining portion that prevents the outer tube from coming off from the insertion portion opening in the first direction, and a through hole that faces the retaining portion in the second direction opposite to the first direction. It has a configuration in which the retaining portion is located within the range of the outer shape of the through hole when viewed in the first direction.

  The through hole provided in the outer tube insertion portion has a pair of edge portions that are separated from each other in the radial direction of the outer tube, and the interval between the pair of edge portions is preferably set smaller than the diameter of the outer tube.

  The outer tube insertion portion is provided with two retaining portions on both sides of the insertion portion opening, and two through holes are formed on both sides of the bridging portion at a position facing downward (or the second direction) with respect to the insertion portion opening. It is good also as a form to provide.

  You may provide the outer tube insertion part in the rib which surrounds the outer peripheral part of an outer tube insertion part in the area | region which does not overlap with an insertion part opening and a through-hole.

  The present invention also includes an outer tube through which a wire is inserted, a winding member that winds the wire, a winding member that is housed in the housing portion, and a housing in which the end portion of the outer tube is inserted into the outer tube insertion portion. The present invention is directed to a method of manufacturing a drive device for a vehicle opening / closing body that opens and closes the opening / closing body by rotating a winding member and driving a wire. The winding member is supported by the housing portion of the housing member so as to be rotatable about a rotation axis facing in the vertical direction, and the end portion of the outer tube is inserted in a direction intersecting the vertical direction with respect to the outer tube insertion portion. . The manufacturing method of the present invention includes an upper mold and a lower mold that move toward and away from each other in the vertical direction to form an accommodation member. The upper die forms an insertion portion opening facing upward in the outer tube insertion portion, and forms an outer surface of a retaining portion that prevents the outer tube from coming off upward from the insertion portion opening. The lower mold forms a through-hole having a shape that allows the retaining portion to fall within the outer shape when viewed in the vertical direction at a position facing the retaining portion downward of the outer tube insertion portion. Form the inner surface of the stop. Furthermore, the accommodating part opening which opens toward upper direction or the downward direction is formed in an accommodating part by either an upper mold | type and a lower mold | type.

  According to the present invention described above, by providing a through hole at a position facing the retaining portion that prevents the outer tube from coming off from the opening in the outer tube insertion portion, the degree of freedom in manufacturing increases, and the outer tube insertion portion is It is possible to improve the productivity of the drive device for a vehicle opening / closing body having the housing member and the wire guide member as constituent elements.

It is a front view of the window regulator to which this invention is applied. It is a rear view of a window regulator. It is a side view of a window regulator. It is a perspective view which shows a guide pulley and pulley bracket vicinity. It is a top view which shows a guide pulley and pulley bracket vicinity. It is a perspective view of a pulley bracket. It is a top view of a pulley bracket. It is sectional drawing which showed the cross section of the pulley bracket in alignment with the VIII-VIII line of FIG. 7, and a part of metal mold | die which forms a pulley bracket. It is a perspective view of a drum housing. It is a top view of a drum housing. It is sectional drawing which showed the cross section of the drum housing in alignment with the XI-XI line | wire of FIG. 10, and a part of metal mold | die which forms a drum housing. It is a top view of a wire guide member. It is the figure which looked at the wire guide member along the XIII arrow line of FIG. It is the figure which looked at the wire guide member along the XIV arrow line of FIG. It is the figure which looked at the wire guide member along the XV arrow line of FIG. It is sectional drawing of the wire guide member which follows the XVI-XVI line of FIG. It is sectional drawing which showed a cross section of the wire guide member in alignment with the XVII-XVII line | wire of FIG. 16, and a part of metal mold | die which forms a wire guide member.

  Hereinafter, an embodiment in which the present invention is applied to a window regulator for driving a window glass (opening / closing body) that opens and closes a window opening of a door will be described as a driving device for a vehicle opening / closing body of the present invention. A window regulator 10 shown in FIGS. 1 to 3 is installed in a door panel (not shown) of a vehicle to raise and lower a window glass (not shown). In FIG. 3, the direction of the vehicle outer side and the vehicle inner side with the window regulator 10 attached to the vehicle door is indicated by arrows. The window regulator 10 has a guide rail 11 that is a long member, and the guide rail 11 is fixed to a door panel (inner panel) via brackets 12 and 13 that are provided at different positions in the longitudinal direction. In this fixed state, the guide rail 11 is arranged with its longitudinal direction approximately directed to the height direction of the vehicle.

  A slider base 14 (glass carrier) that supports the window glass is supported so as to be movable along the longitudinal direction of the guide rail 11. One end of each of a pair of wires 15 and 16 (FIG. 2) is connected to the slider base 14. As shown in FIGS. 4 and 5, a pulley bracket (accommodating member) 30 is fixed near one end in the longitudinal direction of the guide rail 11, and a guide pulley (winding member) 17 is supported on the pulley bracket 30 by a pulley. The shaft 19 is rotatably supported. 6 and 7 show the axis 19x of the pulley support shaft 19 that is the rotation center of the guide pulley 17. FIG. The direction along the axis 19x is the vertical direction of the pulley bracket 30. The wire 15 extends from the slider base 14 along the guide rail 11 toward one end of the guide rail 11 and is supported by a wire guide groove formed on the outer peripheral surface of the guide pulley 17. As the wire 15 advances and retreats, the guide pulley 17 rotates about the axis 19x. A wire guide member 18 is provided in the vicinity of the other end of the guide rail 11 in the longitudinal direction, and the wire 16 extends from the slider base 14 along the guide rail 11 toward the other end of the guide rail 11. 18 will guide you. The wire guide member 18 is fixed to the guide rail 11, and the wire 16 is supported so as to be able to advance and retreat along a wire guide groove 90 (FIGS. 14 and 16) formed in the wire guide member 18.

  The wires 15 and 16 coming out of the guide pulley 17 and the wire guide member 18 are inserted into the tubular outer tubes 21 and 22, and the windings provided in the drum housing (housing member) 20 to which the outer tubes 21 and 22 are connected. It is wound around a take-up drum (winding member) 23. The outer shape of the winding drum 23 is conceptually shown by a two-dot chain line in FIG. 10, and a spiral groove around which the wires 15 and 16 are wound is formed on the outer peripheral surface of the winding drum 23. One end of the outer tube 21 is connected to the pulley bracket 30 and the other end is connected to the drum housing 20, so that the wire 15 can slide in the outer tube 21 whose both end positions are determined. One end of the outer tube 22 is connected to the wire guide member 18, and the other end is connected to the drum housing 20, so that the wire 16 can slide in the outer tube 22 having both end positions determined. The end on the side connected to the pulley bracket 30 by the outer tube 21 is referred to as a rail side end 21a, and the end on the side connected to the wire guide member 18 by the outer tube 22 is referred to as a rail side end 22a. Further, the end portions of the outer tubes 21 and 22 that are connected to the drum housing 20 side are referred to as drum-side end portions 21b and 22b.

  The drum housing 20 is fixed to a door panel (inner panel). The winding drum 23 is rotated by the driving force of the motor 25a of the motor unit 25. When the winding drum 23 rotates in the forward and reverse directions, one of the wires 15 and 16 increases the winding amount of the winding drum 23 around the spiral groove, and the other is fed out from the spiral groove of the winding drum 23. The slider base 14 moves along the guide rail 11 by the relationship between the pulling and relaxation of the wires 15 and 16. As the slider base 14 moves, the window glass moves up and down.

  Hereinafter, the pulley bracket 30, the drum housing 20, and the wire guide member 18 to which the outer tubes 21 and 22 are connected will be described. As shown in FIGS. 4 to 7, the pulley bracket 30 has a pulley housing portion 31 (housing portion) and an outer tube insertion portion 32. The pulley accommodating portion 31 forms a space surrounded by a bottom portion 33 and a cylindrical standing wall 34 formed at the periphery thereof, and the opposite side of the bottom portion 33 is opened as an accommodating portion opening 31a. A circular hole 35 is formed in the bottom 33, the pulley support shaft 19 protrudes into the pulley accommodating portion 31 through the circular hole 35, and the guide pulley 17 can be rotated into the pulley accommodating portion 31 via the pulley support shaft 19. Supported.

  The outer tube insertion portion 32 protrudes laterally from the standing wall 34 of the pulley accommodating portion 31, that is, in a direction intersecting (substantially orthogonal) with respect to the axis 19x. The rail side end portion 21a of the outer tube 21 can be inserted into the outer tube insertion portion 32, and an insertion shaft 32x that is the insertion direction of the rail side end portion 21a with respect to the outer tube insertion portion 32 is shown in FIG. The direction along the insertion shaft 32x is referred to as the axial direction of the outer tube insertion portion 32, and the circumferential direction around the insertion shaft 32x is referred to as the circumferential direction of the outer tube insertion portion 32. The insertion shaft 32x is not parallel to the axis 19x of the pulley support shaft 19, and as shown in FIGS. 1 and 2, the outer tube insertion portion 32 is directed from the pulley housing portion 31 to the drum housing 20 when the window regulator 10 is completed. Protrusively toward. An insertion groove 36 penetrating in the axial direction is formed inside the outer tube insertion portion 32. The insertion groove 36 is formed continuously from the one end communicating with the inner peripheral surface of the standing wall 34 to the middle of the outer tube insertion portion 32 in the axial direction, and the narrow groove portion 36a. The insertion groove 36 has an inner diameter larger than that of the narrow groove portion 36a. Has a large tube support groove portion 36b and a funnel-shaped inner introduction groove portion 36c that gradually increases in inner diameter from the tube support groove portion 36b toward the distal end side of the outer tube insertion portion 32. The inner diameter of the narrow groove portion 36a is set to a size that allows the outer tube 21 to be inserted while allowing the wire 15 to be slidably inserted. The tube support groove 36b has an inner diameter into which the outer tube 21 can be inserted. As shown in FIG. 6, an insertion restricting surface 37 is formed at the step portion at the boundary between the narrow groove portion 36a and the tube support groove portion 36b. The rail-side end portion 21a of the outer tube 21 is inserted into the tube support groove portion 36b along the insertion shaft 32x from the introduction groove portion 36c side, and the end surface of the rail-side end portion 21a abuts against the insertion restricting surface 37 and beyond. Is restricted (the state shown in FIGS. 4 and 5).

  As shown in FIGS. 6 to 8, the outer tube insertion portion 32 has a direction along the axis 19x of the pulley support shaft 19 (the radial direction of the rail-side end portion 21a of the outer tube 21 inserted into the outer tube insertion portion 32). A slit-like opening (insertion portion opening) 38 penetrating the inside and the outside of the insertion groove 36 is provided toward one of them. The opening 38 is formed from the narrow groove portion 36a to the tube support groove portion 36b in the axial direction of the outer tube insertion portion 32. The range corresponding to the tube support groove portion 36b is opposed to both sides in the circumferential direction across the opening 38. A pair of retaining portions 39 are provided. As shown in FIG. 8, the width of the opening 38 is smaller than the diameter of the outer tube 21, and in a state where the rail side end portion 21 a of the outer tube 21 is inserted into the tube support groove portion 36 b, the pair of retaining portions 39 opens the opening 38. The outer tube 21 is prevented from coming off (upward movement in FIG. 8). The diameter of the wire 15 is smaller than the width of the opening 38, and the wire 15 can be inserted into and removed from the insertion groove 36 through the opening 38.

  As shown in FIGS. 6 and 8, the outer tube insertion portion 32 is further formed with a pair of through holes 40. The through hole 40 is formed at a position corresponding to the pair of retaining portions 39 in the axial direction of the outer tube insertion portion 32, and is inserted in the direction along the axis 19 x of the pulley support shaft 19 (inserted into the outer tube insertion portion 32. The outer tube 21 penetrates in the direction opposite to the opening 38 (downward in FIG. 8) in the radial direction of the rail-side end 21a. In other words, when the side where the opening 38 is formed (the upper side in FIG. 8) is the top surface side of the insertion groove 36, the pair of through holes 40 penetrates the wall portion on the bottom surface side of the insertion groove 36. Is formed. A bridging portion 41 is formed at a circumferential position between the pair of through holes 40. The bridging portion 41 extends in the axial direction of the outer tube insertion portion 32 and connects the insertion restriction surface 37 and the introduction groove portion 36c. As shown in FIG. 8, in the direction along the axis 19 x of the pulley support shaft 19, the bridging portion 41 is located at a position facing the opening 38, and a pair of penetrations are located at positions facing the pair of retaining portions 39. The hole 40 is located. The projected area when the individual through holes 40 are viewed along the axis 19x is set to be equal to or greater than the projected area of the retaining portions 39 that are opposed to each other in the direction of the axis 19x. When the outer tube insertion portion 32 is viewed toward the portion 39 side (that is, from the opposite side to FIG. 7), the positional relationship is such that the corresponding retaining portion 39 is within the range of the outer shape of each through hole 40.

  Reinforcing ribs 42 are formed on the outer surface of the outer tube insertion portion 32 so as to protrude. A pair of reinforcing ribs 42 are provided at different positions in the axial direction of the outer tube insertion portion 32 with the through hole 40 interposed therebetween, and each of the reinforcing ribs 42 is inserted into the outer tube in a region excluding the portion where the opening 38 is formed. A shape surrounding the portion 32 in the circumferential direction is formed. The rigidity of the outer tube insertion portion 32 is improved by the reinforcing rib 42.

  When the window regulator 10 is assembled, the wire 15 protruding from the rail side end portion 21a of the outer tube 21 is inserted into the insertion groove 36 of the outer tube insertion portion 32 through the opening 38, and the rail side end portion 21a is inserted from the introduction groove portion 36c. It inserts in the insertion groove 36 along the insertion shaft 32x. The end surface of the rail side end portion 21a abuts on the insertion restricting surface 37, and the position of the outer tube 21 in the direction of the insertion shaft 32x is determined. Since the introduction groove portion 36c is formed on the funnel-shaped inner surface, the rail side end portion 21a can be easily inserted into the insertion groove 36. The wire 15 is guided from the insertion groove 36 into the pulley accommodating portion 31 and supported (wound) by the wire guide groove on the outer peripheral surface of the guide pulley 17. Thus, in a state where the rail side end portion 21a of the outer tube 21 is assembled to the outer tube insertion portion 32 of the pulley bracket 30 (FIGS. 1 to 5), the wire 15 can move forward and backward with respect to the outer tube 21. The guide pulley 17 rotates with the advance and retreat of 15.

  The pulley bracket 30 is a molded product made of a material such as synthetic resin, and is molded using a mold (upper mold) 45 and a mold (lower mold) 46 shown in FIG. FIG. 8 shows a mold configuration of a portion of the pulley bracket 30 that forms the outer tube insertion portion 32. The metal mold 45 and the metal mold 46 can change the distance between each other in the direction along the axis 19x of the pulley support shaft 19 and can approach to a position where the mutual regulation surfaces 47 and 48 come into contact with each other. Either one of the mold 45 and the mold 46 may be movable and the other may be fixed, or both may be movable. . Since the pulley accommodating portion 31 of the pulley bracket 30 is a recessed portion opened in a direction along the axis 19x of the pulley support shaft 19, a mold 45 and a mold that move relatively in the direction along the axis 19x (vertical direction in FIG. 8). It can be formed by a mold 46. The accommodating portion opening 31 a of the pulley accommodating portion 31 is formed by a protruding portion (not shown) provided in the mold 45.

  Similar to the pulley accommodating portion 31, the outer tube insertion portion 32 can be formed only by the mold 45 and the mold 46. As shown in FIG. 8, the mold 45 and the mold 46 have concave portions 49 and 50 that face each other. The mold 45 has a protrusion 51 protruding from the bottom of the recess 49, and the mold 46 has a protrusion 52 protruding from the bottom of the recess 50. The protrusion 52 has a bifurcated shape having an intermediate recess 53 recessed from the tip to a predetermined depth, and the protrusion 51 can be inserted into the intermediate recess 53. The protruding amount of the protrusion 51 is smaller than the depth of the intermediate recess 53, and there is a gap between the tip of the protrusion 51 and the bottom of the intermediate recess 53 in a state where the protrusion 51 is inserted most deeply (a state where the regulating surfaces 47 and 48 abut). It is formed. When the mold 45 and the mold 46 are brought close to each other until the regulation surface 47 and the regulation surface 48 come into contact with each other when the pulley bracket 30 is formed, the outer surface of the outer tube insertion portion 32 including the reinforcing rib 42 is formed by the inner surface of the recess 49 and the recess 50. A shape is formed. Further, the projection 51 is inserted into the intermediate recess 53 by the approach of the mold 45 and the mold 46, and the inner space of the tube support groove 36 b is formed by the combination of the projection 51 and the projection 52. When the insertion groove 36 is formed, an opening 38 is formed by the protrusion 51, and a pair of through holes 40 are formed by the bifurcated protrusion 52. Further, the inner surfaces of the pair of retaining portions 39 are formed in the vicinity of the tips of the bifurcated projections 52, and the outer surfaces of the pair of retaining portions 39 are formed in a region of the recess 49 that faces the vicinity of the tips of the projections 52. . There is a gap between the tip of the protrusion 51 and the bottom of the intermediate recess 53 in a state where the restriction surface 47 and the restriction surface 48 are in contact with each other, and the bridging portion 41 is formed by this gap.

  As described above, by providing the outer tube insertion portion 32 with the through hole 40 facing the retaining portion 39 adjacent to the opening 38 in the direction along the axis 19x, the outer including the insertion groove 36 extending in the direction of the insertion shaft 32x. The entire tube insertion portion 32 can be formed by the mold 45 and the mold 46 without using another mold that moves in the direction of the insertion shaft 32x. Thereby, the mold structure for molding the pulley bracket 30 can be simplified, and the productivity of the window regulator 10 including the pulley bracket 30 is improved.

  As shown in FIGS. 9 and 10, the drum housing 20 includes a drum housing portion (housing portion) 60 and a pair of outer tube insertion portions 61 and 62. The drum housing portion 60 forms a space surrounded by a bottom portion 63 and a cylindrical standing wall 64 formed at the periphery thereof, and the opposite side of the bottom portion 63 opens as a housing portion opening 60a. A cylindrical drum support shaft 65 protrudes from the bottom 63, and the take-up drum 23 is rotatably supported in the drum housing portion 60 via the drum support shaft 65. 9 and 10 show the axis 65x of the drum support shaft 65 serving as the rotation center of the winding drum 23. FIG. The direction along the axis 65x is defined as the vertical direction of the drum housing 20. In the drum housing 20, a wire insertion path 60 b and a wire insertion path 60 c communicating with the drum housing portion 60 are formed in different directions (directions of the pulley bracket 30 and the wire guide member 18 when the window regulator 10 is completed). The outer tube insertion portion 61 is provided at the tip of the wire insertion passage 60b, and the outer tube insertion portion 62 is provided at the tip of the wire insertion passage 60c.

  Each of the outer tube insertion portion 61 and the outer tube insertion portion 62 protrudes in a direction intersecting (substantially orthogonal to) the axis 65x. The drum side end 21 b of the outer tube 21 can be inserted into the outer tube insertion part 61, and the drum side end 22 b of the outer tube 22 can be inserted into the outer tube insertion part 62. An insertion shaft 61x that is the insertion direction of the drum-side end 21b with respect to the outer tube insertion portion 61 and an insertion shaft 62x that is the insertion direction of the drum-side end 22b with respect to the outer tube insertion portion 62 are shown in FIG. A direction along the insertion shafts 61x and 62x is referred to as an axial direction of the outer tube insertion portions 61 and 62, and a circumferential direction around the insertion shafts 61x and 62x is referred to as a circumferential direction of the outer tube insertion portions 61 and 62.

  The outer tube insertion portion 61 and the outer tube insertion portion 62 have the same configuration as the outer tube insertion portion 32 in the pulley bracket 30 described above. Here, the outer tube insertion portion 62 will be described as a representative. However, the outer tube insertion portion 61 is also configured in the same manner as the outer tube insertion portion 62, and a portion common to the outer tube insertion portion 61 and the outer tube insertion portion 62 is described. Are given the same reference numerals in the figure.

  An insertion groove 66 penetrating in the axial direction is formed inside the outer tube insertion portion 62, and the insertion groove 66 is a narrow groove portion 66a communicating with the wire insertion passage 60c (the wire insertion passage 60b in the outer tube insertion portion 61). And a tube support groove 66b formed following the narrow groove 66a, and a funnel-shaped inner introduction groove 66c that gradually increases in inner diameter as the distance from the tube support groove 66b increases. As shown in FIG. 9, an insertion restricting surface 67 is formed at the step portion at the boundary between the narrow groove portion 66a and the tube support groove portion 66b, and the drum of the outer tube 22 inserted into the tube support groove portion 66b from the introduction groove portion 66c side. The end surface of the side end portion 22b comes into contact with the insertion restriction surface 67, and the insertion position of the outer tube 22 into the outer tube insertion portion 62 is determined.

  The outer tube insertion portion 62 has inner and outer insertion grooves 66 extending in one direction along the axis 65x of the drum support shaft 65 (the radial direction of the drum side end portion 22b of the outer tube 22 inserted into the outer tube insertion portion 62). A slit-like opening (insertion opening) 68 is provided. The opening 68 is formed from the narrow groove portion 66a of the outer tube insertion portion 62 to the tube support groove portion 66b, and in a range corresponding to the tube support groove portion 36b, a pair of retaining portions 69 that are opposed to each other with the opening 68 interposed therebetween are provided. It has been. As shown in FIG. 11, with the drum side end portion 22b of the outer tube 22 inserted into the tube support groove portion 66b, the outer tube 22 is removed from the opening 68 by the pair of retaining portions 69 (upward in FIG. 11). Movement) is regulated. The diameter of the wire 16 is smaller than the width of the opening 68, and the wire 16 can be inserted into and removed from the insertion groove 66 through the opening 68.

  The outer tube insertion portion 62 is formed with a pair of through holes 70 at positions facing the pair of retaining portions 69 in the direction along the axis 65 x of the drum support shaft 65, and a circumferential position between the pair of through holes 70. Further, a bridging portion 71 that connects the insertion restricting surface 67 and the introduction groove portion 66c is formed. Each through hole 70 is formed through a wall portion on the opposite side of the opening 68 in the direction along the axis 65x, and the bridging portion 71 is located facing the opening 68 in the direction along the axis 65x. The projected area when each through hole 70 is viewed along the axis 65x is set to be equal to or greater than the projected area of the retaining portion 69 that is in the opposing relationship in the direction of the axis 69x. When the outer tube insertion portion 62 is viewed toward the portion 69 side (that is, from the opposite side to FIG. 10), the positional relationship is such that the corresponding retaining portions 69 are within the range of the outer shape of each through hole 70.

  A pair of reinforcing ribs 72 are formed on the outer surface of the outer tube insertion portion 62 so as to project in a positional relationship sandwiching the through hole 70 in the axial direction. Each of the reinforcing ribs 72 has a shape that surrounds the outer tube insertion portion 62 in the circumferential direction in a region excluding a portion where the opening 68 is formed.

  When the window regulator 10 is assembled, the wire 16 protruding from the drum side end portion 22b of the outer tube 22 is inserted into the insertion groove 66 of the outer tube insertion portion 62 through the opening 68, and the drum side end portion 22b is inserted from the introduction groove portion 66c. It inserts in the insertion groove 36 along the insertion shaft 62x. The end surface of the drum side end 22b abuts on the insertion restricting surface 67, and the position of the outer tube 22 in the direction of the insertion shaft 62x is determined. The wire 16 is guided from the insertion groove 66 through the wire insertion passage 60 c into the drum housing portion 60 and wound around the spiral groove on the outer peripheral surface of the winding drum 23. Thus, in a state where the drum side end portion 22b of the outer tube 22 is assembled to the outer tube insertion portion 62 of the drum housing 20 (FIGS. 1 to 3), the wire 16 can move forward and backward with respect to the outer tube 22 and wound. As the take-up drum 23 rotates, the winding amount of the wire 16 around the spiral groove changes. The outer tube 21 (drum side end 21b) is attached to the outer tube insertion portion 61 and the wire 15 is wound around the winding drum 23 in the same manner.

  A motor unit 25 is attached to the drum housing 20. As shown in FIGS. 1 to 3, the motor unit 25 includes a motor 25a, a gear box 25b, and a cover portion 25c. The gear box 25b has a built-in reduction gear train that transmits the rotation of the output shaft of the motor 25a while decelerating, and a fitting shaft (not shown) through which the rotational driving force of the motor 25a is transmitted via the reduction gear train. It protrudes from the cover part 25c. The cover portion 25c covers an opening portion from the accommodating portion opening 60a to the opening 68 of the drum housing 20, and a fitting shaft protruding from the cover portion 25c is fitted in the drum accommodating portion 60 to the take-up drum 23 (FIG. 10). Thus, the driving force of the motor 25 a can be transmitted to the winding drum 23.

  The drum housing 20 is a molded product made of a material such as synthetic resin, and is molded using a mold (upper mold) 75 and a mold (lower mold) 76 shown in FIG. The metal mold 75 and the metal mold 76 can change the distance between each other in the direction along the axis 65x of the drum support shaft 65, and can be approached to a position where the regulation surfaces 77 and 78 abut each other. Either one of the mold 75 and the mold 76 may be movable, and the other may be a fixed mold and the other may be movable. Since the drum housing portion 60 of the drum housing 20 is a recess opened in the direction along the axis 65x of the drum support shaft 65, the mold 75 and the mold that move relatively in the direction along the axis 65x (the vertical direction in FIG. 11). It can be formed by a mold 76. The accommodating portion opening 60 a of the drum accommodating portion 60 is formed by a protruding portion (not shown) provided in the mold 75.

  Similar to the drum housing portion 60, the outer tube insertion portion 62 can be formed only by the mold 75 and the mold 76. As shown in FIG. 11, the mold 75 and the mold 76 have recesses 79 and 80 that face each other, the mold 75 has a protrusion 81 that protrudes from the bottom of the recess 79, and the mold 76 has a recess 80. It has a bifurcated protrusion 82 protruding from the bottom and an intermediate recess 83 provided therebetween. The protrusion 81 can be inserted into the intermediate recess 83, and the protrusion amount of the protrusion 81 is smaller than the depth of the intermediate recess 83. When the mold 75 and the mold 76 are brought close to each other until the regulation surface 77 and the regulation surface 78 come into contact with each other when the drum housing 20 is molded, the outer surface of the outer tube insertion portion 62 including the reinforcing rib 72 is formed by the inner surfaces of the recess 79 and the recess 80. A shape is formed. Further, the protrusion 81 is inserted into the intermediate recess 83 by the approach between the mold 75 and the mold 76, and the inner space of the tube support groove 66 b is formed by the combination of the protrusion 81 and the protrusion 72. At that time, an opening 68 is formed by the protrusion 71, and a pair of through holes 70 are formed by the bifurcated protrusion 72. In addition, the inner surfaces of the pair of retaining portions 69 are formed near the tips of the bifurcated projections 72, and the outer surfaces of the pair of retaining portions 69 are formed by the region of the recess 79 facing the vicinity of the tips of the projections 72. . There is a gap between the tip of the projection 81 and the bottom of the intermediate recess 83 in a state where the regulation surface 77 and the regulation surface 78 are in contact, and the bridging portion 71 is formed by this gap. FIG. 11 shows the molding of the outer tube insertion portion 62, but the outer tube insertion portion 61 is also formed with the same mold configuration (that is, the mold 75 and the mold 76).

  In this way, by providing the outer tube insertion portions 61 and 62 with the through holes 70 facing the retaining portions 69 adjacent to the openings 68 in the direction along the axis 65x, the insertion grooves extending in the insertion shafts 61x and 62x directions. The entire outer tube insertion portions 61 and 62 including 66 can be formed by the mold 75 and the mold 76 without using another mold that moves in the direction of the insertion shafts 61x and 62x. Thereby, the mold structure for molding the drum housing 20 can be simplified, and the productivity of the window regulator 10 including the drum housing 20 is improved.

  As shown in FIGS. 12 to 16, the wire guide member 18 includes an arcuate wire guide groove (guide groove) 90 that supports the wire 16 extended from the rail side end 22 a of the outer tube 22, and the rail side. It has the outer tube insertion part 91 which can insert the edge part 22a. The wire guide groove 90 has an opening 92 that faces substantially downward when the window regulator 10 is completed (FIGS. 1 to 3).

  The outer tube insertion portion 91 in the wire guide member 18 has a configuration similar to the outer tube insertion portion 32 in the pulley bracket 30 and the outer tube insertion portion 61 and the outer tube insertion portion 62 in the drum housing 20. Specifically, an insertion groove 93 that penetrates along the insertion axis 91x (FIG. 12), which is the insertion direction of the rail-side end 22a, is formed in the outer tube insertion portion 91, and the insertion groove 93 is formed in the wire guide groove 90. Communicate. The insertion groove 93 includes a tube support groove 93a into which the rail-side end portion 22a of the outer tube 22 can be inserted, and an introduction groove that gradually increases in inner diameter as it moves away from the tube support groove 93b toward the distal end side of the outer tube insertion part 91. 93b. An insertion restricting surface 94 (FIG. 16) is formed at the step portion at the boundary between the wire guide groove 90 and the tube support groove portion 93b. The rail-side end portion 22a of the outer tube 22 is inserted into the tube support groove portion 93a along the insertion shaft 91x from the introduction groove portion 93b side, and the end surface of the rail-side end portion 22a abuts against the insertion restricting surface 94 so that it is more than that. Insertion is restricted (the state shown in FIGS. 1 to 3).

  The outer tube insertion portion 91 penetrates in the radial direction (first direction of the radial direction) of the outer tube 22 (rail side end portion 22a) in the entire axial direction from the tube support groove portion 93a to the introduction groove portion 93b. A slit-like opening (insertion opening) 95 is formed. The opening 95 communicates with the opening 92 of the wire guide groove 90. In a range corresponding to the tube support groove portion 93a, a pair of retaining portions 96 are provided so as to be opposed to both sides in the circumferential direction with the opening 95 interposed therebetween. As shown in FIG. 17, the width of the opening 95 is smaller than the diameter of the outer tube 22, and when the rail side end portion 22 a of the outer tube 22 is inserted into the tube support groove portion 93 a, the pair of retaining portions 96 opens the opening 95. The outer tube 22 is prevented from coming off (moving downward in FIG. 17). The diameter of the wire 16 is smaller than the width of the opening 95 or the opening 92, and the wire 16 can be inserted into and removed from the insertion groove 93 and the wire guide groove 90 through the opening 95 and the opening 92.

  The outer tube insertion portion 91 faces the pair of retaining portions 96 in a radial direction perpendicular to the insertion shaft 91x (a radial direction of the rail side end portion 22a of the outer tube 22 inserted into the outer tube insertion portion 91). A pair of through holes 97 (FIGS. 15 and 17) is formed at the position, and a bridging portion 98 that connects the insertion restricting surface 94 and the introduction groove portion 93b is formed at a circumferential position between the pair of through holes 97. Yes. Each through hole 97 is formed in a wall portion opposite to the opening 95 in the radial direction (a wall portion located in the second direction in the radial direction), and the bridging portion 98 is formed in the opening 95 in the radial direction. Located opposite to each other. The projected area when each through hole 97 is viewed in the radial direction of the outer tube insertion portion 91 is set to be equal to or greater than the projected area of the retaining portion 96 that is in the radial relationship, as shown in FIG. When the outer tube insertion portion 91 is viewed from the through hole 97 side toward the retaining portion 96 side, the positional relationship is such that the corresponding retaining portion 96 is within the range of the outer shape of each through hole 97.

  A pair of reinforcing ribs 99 are formed on the outer surface of the outer tube insertion portion 91 so as to protrude in different positions in the axial direction. Each of the reinforcing ribs 99 has a shape that surrounds the outer tube insertion portion 91 in the circumferential direction in a region excluding a portion where the opening 95 and the through hole 97 are formed.

  When the window regulator 10 is assembled, the wire 16 protruding from the rail-side end 22a of the outer tube 22 is inserted into the wire guide groove 90 and the insertion groove 93 of the outer tube insertion portion 91 through the opening 92 and the opening 95, and the rail The side end portion 22a is inserted into the insertion groove 93 along the insertion shaft 91x from the introduction groove portion 93b. The end surface of the rail side end portion 22a abuts on the insertion restricting surface 94, and the position of the outer tube 22 in the direction of the insertion shaft 91x is determined. The wire 16 supported so as to be able to advance and retract in the wire guide groove 90 is routed along the guide rail 11 and connected to the slider base 14 as shown in FIG.

  The wire guide member 18 is a molded product made of a material such as synthetic resin, and is molded using the mold 100 and the mold 101 shown in FIG. The mold 100 and the mold 101 can change the distance between them in the vertical direction in FIGS. 12, 13, 16 and 17, and either the mold 100 or the mold 101 can be moved. Either a form that is a movable type and a fixed type that does not move the other, or a form that is a movable type that can move both may be adopted.

  Since the wire guide member 18 has an opening 92 in the wire guide groove 90, an opening 95 in the outer tube insertion portion 91, and a through hole 97, all open toward the relative movement direction of the mold 100 and the mold 101. It is possible to form only the mold 100 and the mold 101 without using another mold that moves in the insertion axis 91x direction of the tube insertion portion 91. As shown in FIG. 17, the mold 100 and the mold 101 have recesses 102 and 103 that face each other, the mold 100 has a protrusion 104 that protrudes from the bottom of the recess 102, and the mold 101 has a recess 103. It has a bifurcated protrusion 105 protruding from the bottom and an intermediate recess 106 provided therebetween. The protrusion 104 can be inserted into the intermediate recess 106, and the protrusion amount of the protrusion 104 is smaller than the depth of the intermediate recess 106. When the mold 100 and the mold 101 are brought close to each other until the mutual regulation surfaces (not shown) come into contact with each other when the wire guide member 18 is formed, the outer tube insertion portion 91 including the reinforcing rib 99 is formed by the inner surfaces of the recess 102 and the recess 103. The outer surface shape is formed. Further, the projection 104 is inserted into the intermediate recess 106, and the combination of the projection 104 and the projection 105 forms an internal space of the tube support groove portion 93a. At that time, an opening 95 is formed by the protrusion 104, and a pair of through holes 97 are formed by the bifurcated protrusion 105. In addition, the inner surfaces of the pair of retaining portions 96 are formed near the tips of the bifurcated projections 105, and the outer surfaces of the pair of retaining portions 96 are formed by the region of the recess 102 facing the vicinity of the tips of the projections 105. . There is a gap between the tip of the projection 104 and the bottom of the intermediate recess 106 with the mold 100 and the mold 101 closest to each other, and a bridging portion 98 is formed by this gap.

  In this manner, the outer tube insertion portion 91 is inserted by providing the through-hole 97 positioned opposite to the retaining portion 96 adjacent to the opening 95 in the radial direction of the outer tube 22 (rail side end portion 22a). The entire outer tube insertion portion 91 including the insertion groove 93 extending in the axis 91x direction can be formed by the mold 100 and the mold 101 without using another mold that moves in the insertion axis 91x direction. As a result, the mold structure for molding the wire guide member 18 can be simplified, and the productivity of the window regulator 10 including the wire guide member 18 is improved.

  Although the present invention has been described based on the illustrated embodiment, the present invention is not limited to the illustrated embodiment, and can be improved or modified without departing from the gist of the invention. For example, in the illustrated embodiment, a pair of retaining portions 39, 69, and 96 that are located on the outer tube insertion portions 32, 61, 62, and 91 with the openings 38, 68, and 95 interposed therebetween, and the pair of retaining portions 39, respectively. , 69 and 96 are formed in a pair of through-holes 40, 70 and 97, but the positions of the openings, retaining portions and through-holes in the circumferential direction are changed so that the retaining portions and the through-holes are It is also possible to make it. Accordingly, the detailed shape of the mold for forming the wire guide member 18, the drum housing 20, and the pulley bracket 30 can be made different from that of the illustrated embodiment.

  The illustrated embodiment is applied to a window regulator 10 that drives a window glass as an opening / closing body in a vehicle. However, if the opening / closing operation of the driving body is performed via a wire, a sliding door is provided in addition to the window regulator. The present invention can also be applied to a door opening / closing mechanism that opens and closes.

  In the drum housing 20 of the illustrated embodiment, the housing opening 60a in the drum housing 60 and the opening 68 in the outer tube insertion portions 61 and 62 open in the same direction, but the housing opening 60a in the direction along the axis 65x. It is also possible to open the openings 68 in opposite directions. Similarly, in the pulley bracket 30 of the illustrated embodiment, the housing portion opening 31a in the pulley housing portion 31 and the opening 38 in the outer tube insertion portion 32 open in the same direction, but the housing portion opening 31a in the direction along the axis 19x. It is also possible to open the openings 38 in opposite directions. In these modifications as in the illustrated embodiment, the drum housing 20 and the pulley bracket 30 can be formed by two molds that move relatively in the direction along the axis 65x and the axis 19x.

DESCRIPTION OF SYMBOLS 10 Window regulator 11 Guide rail 12 13 Bracket 14 Slider base 15 16 Wire 17 Guide pulley (winding member)
18 Wire guide member 19 Pulley support shaft 19x Pulley support shaft axis 20 Drum housing (housing member)
21 22 Outer tube 21a 22a Rail side end 21b 22b Drum side end 23 Winding drum (winding member)
25 Motor unit 30 Pulley bracket (housing member)
31 Pulley housing (housing)
31a accommodating portion opening 32 61 62 91 outer tube insertion portion 32x 61x 62x 91x insertion shaft 33 63 bottom 34 64 standing wall 35 circular hole 36 66 93 insertion groove 36a 66a narrow groove portion 36b 66b 93a tube support groove portion 36c 66c 93b introduction groove portion 37 6794 Insertion restriction surface 38 68 95 Opening (insertion part opening)
39 69 96 Retaining part 40 70 97 Through hole 41 71 98 Bridge part 42 72 99 Reinforcing rib 45 75 Mold (upper mold)
46 76 Mold (Lower mold)
47 48 77 78 Restriction surface 49 50 79 80 102 103 Recess 51 52 81 82 104 105 Protrusion 53 83 106 Intermediate recess 60 Drum housing (housing)
60a Housing part opening 60b 60c Wire insertion path 61 62 Outer tube insertion part 65 Drum support shaft 65x Drum support shaft axis 66 Insertion hole 67 Wire guide part 68 Casing insertion part 69 Step surface 70 Slit 71 Punch hole 72 Bridge part 75 76 Mold 77 78 Restriction surface 79 80 Concave portion 81 82 Protrusion 83 Intermediate concave portion 90 Wire guide groove (guide groove)
92 Opening 100 Mold 101 Mold

Claims (7)

In a drive device for a vehicle opening / closing body that opens and closes the opening / closing body by driving a wire,
An outer tube having the wire inserted therein;
A winding member that winds the wire; and a housing portion that accommodates the winding member so as to be rotatable about a rotation axis that faces the vertical direction, and a direction in which an end of the outer tube intersects the vertical direction A housing member having an outer tube insertion portion inserted into the housing;
With
The outer tube insertion part has an insertion part opening facing upward, and the housing part has a housing part opening facing upward or downward,
The outer tube insertion portion has a retaining portion that prevents the outer tube from coming off upward from the opening of the insertion portion, and a through-hole that faces the downward direction with respect to the retaining portion. A drive device for a vehicle opening / closing body, characterized in that the retaining portion is positioned within a range of an outer shape of the through hole as viewed in a direction. In a drive device for a vehicle opening / closing body that opens and closes the opening / closing body by driving a wire,
An outer tube having the wire inserted therein; and a wire guide member having a guide groove for guiding the wire, and an outer tube insertion portion into which an end portion of the outer tube is inserted in the axial direction;
With
The wire guide member has an insertion portion opening in the outer tube insertion portion that faces the first direction in the radial direction of the outer tube, and an opening is formed in the guide groove continuously to the insertion portion opening,
The outer tube insertion portion faces the retaining portion in a second direction opposite to the first direction, and a retaining portion that prevents the outer tube from coming off from the insertion portion opening in the first direction. A vehicle opening / closing body drive device, characterized in that the retaining portion is located within a range of an outer shape of the through hole when viewed in the first direction. . The drive device for a vehicle opening / closing body according to claim 1 or 2, wherein the through hole has a pair of edge portions spaced in the radial direction of the outer tube, and a distance between the pair of edge portions is a diameter of the outer tube. Driving device for a vehicle opening / closing body smaller than the above. 4. The vehicle opening / closing body drive device according to claim 1 or 3, wherein the outer tube insertion portion has the two retaining portions on both sides of the insertion portion opening, and is disposed below the insertion portion opening. A drive device for a vehicle opening / closing body having the two through holes on both sides of a bridging portion at an opposing position. 4. The vehicle opening / closing body driving device according to claim 2, wherein the outer tube insertion portion has two of the retaining portions on both sides of the insertion portion opening, and the second opening portion with respect to the insertion portion opening. The opening / closing body drive device for vehicles which has the two said through-holes in the both sides of the bridge part in the position which opposes this direction. 6. The vehicle opening / closing body drive device according to claim 1, further comprising a rib surrounding the outer peripheral portion of the outer tube insertion portion in a region not overlapping with the insertion portion opening and the through hole. Body drive device. An outer tube with a wire inserted inside;
A winding member that winds the wire; and a housing portion that accommodates the winding member so as to be rotatable about a rotation axis that faces the vertical direction, and a direction in which an end of the outer tube intersects the vertical direction A housing member having an outer tube insertion portion inserted into the housing;
In the method of manufacturing a vehicle opening / closing body driving device for opening / closing the opening / closing body by rotating the winding member and driving the wire,
An upper mold and a lower mold that move toward and away from each other in the vertical direction to form the housing member;
The upper die forms an insertion portion opening facing upward in the outer tube insertion portion, and forms an outer surface of a retaining portion that prevents the outer tube from coming out upward from the insertion portion opening.
Through the lower mold, a through hole having a shape in which the retaining portion fits within an outer shape when viewed in the vertical direction is provided at a position facing the retaining portion downward of the outer tube insertion portion. And forming the inner surface of the retaining portion,
A method for manufacturing a drive device for a vehicle opening / closing body, wherein the upper portion or the lower die forms a housing portion opening that opens upward or downward in the housing portion.

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