JP2020070654A - Drive device for vehicle opening/closing body - Google Patents

Abstract

To provide a drive device for vehicle opening/closing bodies for which a repair is easy when a drive unit operates defectively.SOLUTION: The drive device for vehicle opening/closing bodies comprises an opening/closing body that is supported so as to be able to open and close an opening for space which is formed in a vehicle body, and a drive unit that is connected to the vehicle body side and opening/closing body side and makes the opening/closing body open and the close by changing the distance between the connection locations on the vehicle body side and opening/closing body side by using drive force from a drive source. A connecting protrusion is provided on the opening/closing body side or vehicle body side. The drive device includes: a socket that is provided for the drive unit and into which the protrusion is inserted in a fitting manner; a stopper that is supported by the socket, and changes to a coming-out prevention shape that restricts separation of the socket from the protrusion and a release shape that allows the socket to be separated from the protrusion; and transmission means that transmits force for changing the stopper from the coming-out prevention shape to the release shape depending on operation by operating means that is provided outside the space.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an opening / closing body drive device mounted on a vehicle.

  There is known an opening / closing body drive device that opens / closes an opening / closing body provided in a vehicle by a driving force of an actuator. For example, Patent Document 1 discloses an opening / closing body drive device that opens and closes a trunk lid that closes an opening of a luggage compartment by using a driving force of a linear actuator.

JP, 2016-35156, A

  In this type of opening / closing body drive device, if the actuator does not operate due to a failure or the like, the opening / closing operation of the opening / closing body may be restricted. In the opening / closing drive device for the trunk lid, the actuator is often arranged in the luggage compartment. Therefore, if the actuator malfunctions with the trunk lid closed, it may be difficult to access the actuator in the luggage compartment, and a large amount of work may be required for repair.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an opening / closing body drive device for a vehicle, which can be easily repaired when the drive unit malfunctions.

  The present invention relates to an opening / closing body that supports an opening of a space formed in a vehicle body so as to be openable and closable, and a distance between connecting portions on the vehicle body side and the opening / closing body side connected to each other by a driving force of a drive source. And a drive unit for performing opening and closing operations of the opening and closing body, and an opening and closing body drive device for a vehicle, wherein a protrusion for connection is provided on the opening and closing body side or the vehicle body side. A socket into which the part is inserted and fitted, a stopper that is supported by the socket and that restricts the separation of the socket from the protruding part, and a stopper that changes into a release shape that allows the socket to be separated from the protruding part, and a stopper provided outside the space And a transmission means for transmitting a force for changing the stopper from the retaining shape to the releasing shape according to the operation of the operating means.

  The stopper has a pair of arm portions that change the distance between each other by elastic deformation and an intermediate portion that connects the pair of arm portions, and widens the distance between the pair of arm portions to change from the retaining shape to the releasing shape. Is preferred.

  The transmission means includes a wire that is connected to an intermediate portion of the stopper and pulls the stopper in a direction in which the socket is separated from the protruding portion in accordance with the operation of the operation means. It is preferable to have a transmission part to receive and to move with a stopper and to separate from a protrusion.

  The socket may be provided with a wire guide portion that determines the extending direction of the wire in the direction in which the stopper is pulled.

  When the stopper is in the retaining shape, the pair of arms fits into the small diameter portion of the protrusion, and when the stopper is pulled by the wire, the pair of arms abuts the large diameter portion of the protrusion and changes to the release shape. Preferably.

  The operating means can be provided at any position outside the space opened / closed by the opening / closing body. As an example, the opening / closing body is a trunk lid that can open and close the opening of the luggage compartment, and it is preferable to provide the operating means in the vehicle compartment.

  According to the present invention described above, since the socket of the drive unit can be disconnected by operating the operation means provided outside the space opened / closed by the open / close body, the operation restriction of the open / close body by the drive unit can be released. It is possible to obtain an opening / closing body drive device for a vehicle, which can be easily repaired when the vehicle malfunctions.

FIG. 3 is a perspective view showing a rear portion of the vehicle with a trunk lid opened. It is a side view of an opening-and-closing body drive which opens and closes a trunk lid. It is a perspective view of a socket and a stopper of an expansion-contraction drive unit, and an operation wire. It is a perspective view of a socket and a stopper of an expansion-contraction drive unit, and an operation wire. It is a perspective view of a socket and a stopper of an expansion-contraction drive unit, and an operation wire. It is a side view of a socket of an expansion-contraction drive unit, a stopper, and an operation wire. It is the figure which looked at the socket and stopper of the expansion-contraction drive unit, and the operation wire along the wire extension direction. It is a figure which shows operation | movement when releasing the connection of a telescopic drive unit with respect to a hinge. It is a figure which shows notionally the arrangement of an opening / closing body drive device.

  Hereinafter, embodiments to which the present invention is applied will be described with reference to the drawings. The illustrated embodiment is one in which the present invention is applied to an opening / closing body drive device that opens and closes a trunk lid of an automobile. The present invention can also be applied to an opening / closing body driving device that drives an opening / closing body other than the trunk lid.

  As shown in FIG. 1, a vehicle body 10 of an automobile according to the present embodiment is formed with a passenger compartment 11 that forms a passenger's passenger space, and a luggage compartment 12 is formed in a rear portion of the passenger compartment 11. The passenger compartment 11 and the luggage compartment 12 are separated by a partition wall located behind a rear seat (not shown) in the passenger compartment 11. Behind the upper part of the rear seats, a rear parcel shelf 17 that forms the interior of the vehicle interior 11 is provided.

  The opening 12 a of the luggage compartment 12 can be opened and closed by a trunk lid (opening / closing body) 13. The trunk lid 13 is supported by a pair of hinges 14 provided on both sides of the luggage compartment 12. Each hinge 14 is supported on the vehicle body 10 so as to be rotatable around a shaft 14a. The trunk lid 13 is opened and closed by the rotation of the pair of hinges 14 around the shaft 14a.

  A lock mechanism 15 is provided below the trunk lid 13. The lock mechanism 15 has a hook and a ratchet (not shown). When the trunk lid 13 is closed, the hook is fitted to the striker 16 provided on the vehicle body 10, and the ratchet maintains the hook holding position. Becomes locked. The lock state of the lock mechanism 15 can be released by operating a lock release member (not shown) provided in the vehicle interior 11 or an unlocking key hole (not shown) provided on the outer surface of the trunk lid 13. it can.

  The trunk lid 13 is a so-called power trunk lid that is opened and closed by driving force of an actuator. A telescopic drive unit (driving unit) 20 is provided as an actuator that opens and closes the trunk lid 13. One end of the extension / contraction drive unit 20 is connected to the vehicle body 10 inside the luggage compartment 12, the other end of the extension / contraction drive unit 20 is connected to the hinge 14, and the hinge 14 is extended by an extension / contraction operation that changes the distance between the connection points at both ends. It rotates about the shaft 14a. The telescopic drive unit 20 is connected to only one of the pair of left and right hinges 14 (see FIG. 9). The other hinge 14 is driven while supporting the trunk lid 13.

  FIG. 2 is a side view showing the hinge 14 and the extension / contraction drive unit 20 which constitute the opening / closing body drive device. In FIG. 2, the hinge 14 with the trunk lid 13 closed is shown by a solid line, and the hinge 14 with the trunk lid 13 opened is shown by a chain line. The vicinity of one end of the hinge 14 is supported by the shaft 14a, and the support portion 14b located on the other end side of the hinge 14 is fixed to the trunk lid 13. A bent portion 14c that bends in a U shape is formed between the shaft 14a and the support portion 14b.

  The expansion / contraction drive unit 20 includes a motor unit 21, a guide tube 22, and an advancing / retreating rod 23. The motor unit 21 is attached to one end of the guide tube 22. The advancing / retreating rod 23 projects from the end of the guide tube 22 opposite to the side on which the motor unit 21 is attached, and is capable of advancing / retreating in the longitudinal direction (axial direction) with respect to the guide tube 22. The motor unit 21 has a motor 21a, which is a drive source, and a reduction gear mechanism 21b that decelerates and transmits the rotation of the motor 21a. When the motor 21a is driven, the driving force is transmitted to the advancing / retreating rod 23 via the reduction gear mechanism 21b, and the advancing / retreating rod 23 moves forward / backward with respect to the guide tube 22.

  The motor unit 21 is provided with a vehicle body connecting portion 24. A socket 25 is provided at the tip of the advancing / retreating rod 23. The vehicle body connecting portion 24 and the socket 25 are located at one end and the other end of the telescopic drive unit 20 in the longitudinal direction. The vehicle body connecting portion 24 is centered on an axis line 24x (virtually shown in FIGS. 2 and 9) oriented in the vehicle width direction with respect to the vehicle body 10 side connecting protrusion 26 (FIG. 9) provided on the inner wall of the luggage compartment 12. Is rotatably supported. The socket 25 is connected to the hinge 14 by a connection structure described later.

  The position of the extension / contraction drive unit 20 shown in FIG. 2 is a state in which the trunk lid 13 is closed. When the motor 21a is driven from this state and the advancing / retreating rod 23 is operated in the pulling direction into the guide tube 22 (direction in which the socket 25 approaches the vehicle body connecting portion 24), force is applied from the socket 25 to the bending portion 14c, The hinge 14 rotates about the shaft 14a in the counterclockwise direction in FIG. The trunk lid 13 is opened by the rotation of the hinge 14. When the advancing / retreating rod 23 is pulled into the guide tube 22 by a predetermined amount, the hinge 14 reaches the position shown by the alternate long and short dash line in FIG. 2 and the trunk lid 13 is fully opened (FIG. 1). When the motor 21a is driven to increase the amount of protrusion of the advancing / retreating rod 23 from the guide tube 22, the hinge 14 operates in the opposite manner to the above and the trunk lid 13 is closed. When the trunk lid 13 is opened / closed, the telescopic drive unit 20 causes the advancing / retreating rod 23 to advance / retreat in the axial direction with respect to the guide tube 22, and also swings about the axis 24x on the vehicle body connecting portion 24 side. Therefore, the position of the vehicle body connecting portion 24 with respect to the vehicle body 10 is constant, and the position of the socket 25 changes with respect to the vehicle body 10.

  By the way, since the opening / closing position of the trunk lid 13 is determined by the extension / contraction drive unit 20, malfunction of the extension / contraction drive unit 20 (for example, gear fixing in the motor unit 21) occurs and the distance between the vehicle body connecting portion 24 and the socket 25 is changed. If it becomes impossible, the position of the trunk lid 13 may be fixed. In particular, when the trunk lid 13 is closed, the telescopic drive unit 20 in the luggage compartment 12 cannot be accessed from the opening 12a side, making it difficult to replace the telescopic drive unit 20 and check the state. The opening / closing body drive device of the present embodiment is provided with a connection releasing means that is capable of releasing the connection between the telescopic drive unit 20 and the hinge 14 by an operation from the outside of the luggage compartment 12 and easily releasing the fixed state of the trunk lid 13. There is. Hereinafter, the details of the connection structure between the expansion / contraction drive unit 20 and the hinge 14 including the connection releasing means will be described.

  The hinge 14 is provided with a bracket 14d in the middle of the bent portion 14c (see FIG. 2), and a connecting protrusion (projection) 30 is fixed to the bracket 14d (see FIG. 8). The connection protrusion 30 includes a fixing portion 31 fixed to the bracket 14d, a base portion 32 protruding from the fixing portion 31, a neck portion (small diameter portion) 33 having a diameter that decreases from the base portion 32 toward the tip side, and a tip portion. And a spherical head portion (large diameter portion) 34 having a larger diameter than the neck portion 33. The connection protrusion 30 in which the fixing portion 31 is fixed to the bracket 14d protrudes laterally of the hinge 14 with the axis 30x oriented in the vehicle width direction.

  The socket 25 of the telescopic drive unit 20 is connected to the connection protrusion 30. The detailed structure of the socket 25 is shown in FIGS. The socket 25 has a shaft end portion 40 connected to the tip portion of the advancing / retreating rod 23. The shaft end 40 has a columnar shape, and its central axis 40x (see FIGS. 6 and 7) faces the longitudinal direction of the guide tube 22 and the advancing / retreating rod 23. Hereinafter, the direction along the central axis 40x is the axial direction of the socket 25, the direction of a straight line perpendicular to the central axis 40x is the radial direction of the socket 25, and the circumferential direction about the central axis 40x is the socket 25. Circumferential direction.

  A reference surface 41, which is a surface substantially perpendicular to the central axis 40x, is formed on the shaft end portion 40 of the socket 25. The socket 25 is provided with a fitting hole 42 (see FIG. 5) that opens outward in the radial direction. A radial outer direction in which the fitting hole 42 opens is defined as an opening direction. A pair of side wall portions 43 are provided on both sides of the fitting hole 42. A standing wall-shaped restricting surface 45 that projects in the axial direction of the socket 25 with respect to the reference surface 41 is formed on each side wall portion 43. As shown in FIG. 8, the pair of restricting surfaces 45 increase in interval with each other in the radial direction toward the side opposite to the opening direction of the fitting hole 42 (left side in FIG. 8). A cantilevered pressing portion 46 is provided between the pair of side wall portions 43 so as to project. The pressing portion 46 projects in the radial direction to the side opposite to the opening direction of the fitting hole 42 and faces a part of the reference surface 41 in the axial direction.

  The socket 25 further has a transmission portion 47 located on the extension of the fitting hole 42 in the radial direction. More specifically, an extension portion 48 that protrudes from the shaft end portion 40 toward the side opposite to the opening direction of the fitting hole 42 is provided, and the tip of the extension portion 48 is bent in the axial direction of the socket 25 to form the transmission portion 47. Has been formed. A slit (wire guide portion) 49 is formed at the center of the transmission portion 47 in the circumferential direction. The slit 49 penetrates the transmission portion 47 in the radial direction of the socket 25. The slit 49 extends with a constant width in the axial direction of the socket 25, and one end of the slit 49 is open on the tip end surface of the transmission portion 47 (see FIG. 7).

  By moving the socket 25 in the radial direction, the connection protrusion 30 can be inserted into and removed from the fitting hole 42. 8A and 8B show a state in which the connection protrusion 30 is inserted into the fitting hole 42, and FIG. 8C shows a state in which the connection protrusion 30 is separated from the fitting hole 42. .. When the connection protrusion 30 is inserted into the fitting hole 42, a so-called ball joint fitting structure is formed, and a predetermined degree of freedom of movement is provided between the socket 25 and the hinge 14, and the extension / contraction direction (center) of the extension / contraction drive unit 20. It becomes possible to transmit the force in the direction along the axis 40x) to the hinge 14.

  The socket 25 supports a stopper 50 that maintains the insertion fitting of the connection protrusion 30 into the fitting hole 42. The stopper 50 is a leaf spring, and has a C-shape in which a pair of symmetrical arm portions 51 are connected by a wire connecting portion (intermediate portion) 52. The tips of the pair of arm portions 51 are opposed to each other, and the tips can approach and separate from each other by elastic deformation. The wire connecting portion 52 has a U-shape that bulges in the outer diameter direction of the stopper 50. The stopper 50 is inserted between the reference surface 41 and the pressing portion 46, and the movement of the socket 25 in the axial direction is restricted (see FIG. 6). A hemispherical projection 53 is formed on the outer peripheral side of each arm 51.

  An operation wire (transmission means) 60 is connected to the stopper 50. A wire end 61 is attached to the tip of the operation wire 60. The operation wire 60 is connected to the stopper 50 by inserting the operation wire 60 into the slit 49 and the wire end 61 inside the wire connecting portion 52.

  As shown in FIG. 9, the operation wire 60 extends from the inside of the luggage compartment 12 into the inside of the vehicle compartment 11 and is connected to a release lever (operation means) 62. By operating the release lever 62, the operation wire 60 is pulled. In order to prevent erroneous operation, the release lever 62 is normally arranged so as not to be exposed in the vehicle interior 11, and the release lever 62 can be accessed only when the connection release operation between the hinge 14 and the telescopic drive unit 20 is performed. Composed. In this embodiment, the release lever 62 is arranged below the rear parcel shelf 17 (FIG. 1), and when operating the release lever 62, the lid (not shown) provided on the rear parcel shelf 17 is opened.

  FIG. 8A shows a state in which the connection protrusion 30 is inserted into the fitting hole 42 to connect the hinge 14 and the extension / contraction drive unit 20 and the connection release operation by the release lever 62 is not performed. In this state, the stopper 50 has a retaining shape in which the pair of arm portions 51 are brought close to each other, and the tips of the pair of arm portions 51 are fitted into the neck portion 33, so that the connection projection 30 is detached from the fitting hole 42 ( The relative movement of the connection projection 30 in the radial direction of the socket 25 is restricted. In addition to the biasing force of the stopper 50 itself, the protrusion 53 provided on each arm portion 51 abuts against the regulation surface 45, so that the deformation of the pair of arm portions 51 in the spreading direction is limited, and thus the stopper 50 is provided. The retaining of the connection projection 30 by the is stably maintained. The stopper 50 does not come off due to the force acting between the socket 25 and the connection protrusion 30 when the extension drive unit 20 is driven to open / close the trunk lid 13.

  When a problem occurs such that the telescopic drive unit 20 does not operate while the trunk lid 13 is closed, the release lever 62 is operated to release the connection between the hinge 14 and the telescopic drive unit 20, and the trunk lid 13 is closed. Will be able to open. Specifically, when the release lever 62 is operated, the operation wire 60 is pulled. Then, as shown in FIG. 8B, the pulling force is transmitted from the wire end 61 to the wire connecting portion 52, and the stopper 50 is pulled in a direction away from the connecting protrusion 30. The stopper 50 pulled by the operation wire 60 elastically deforms by sliding the tips of the pair of arm portions 51 along the head portion 34 from the neck portion 33 of the connection protrusion 30 while approaching the transmission portion 47 of the socket 25. The open shape is obtained by enlarging the interval between the pair of arm portions 51.

  Since the stopper 50 is sandwiched between the reference surface 41 and the pressing portion 46 and the movement of the socket 25 in the axial direction is restricted, the stopper 50 can be smoothly moved in the pulling direction by the operation wire 60. In addition, since the wire end 61 is housed inside the U-shaped wire connection portion 52 provided in the stopper 50, a large displacement or inclination of the wire end 61 with respect to the stopper 50 is limited by the inner surface of the wire connection portion 52. It is possible to realize efficient and stable transmission of traction force.

  As shown in FIG. 8B, when the stopper 50 is pulled by a predetermined amount via the operation wire 60, the wire connecting portion 52 contacts the transmitting portion 47. Then, the pulling force of the operation wire 60 is also transmitted to the socket 25 via the stopper 50, and both the socket 25 and the stopper 50 move in the direction away from the connection protrusion 30. The length of the transmission portion 47 in the circumferential direction of the socket 25 is larger than the width of the wire connection portion 52, and the wire connection portion 52 can be reliably brought into contact with the transmission portion 47 to transmit the traction force.

  When the socket 25 and the stopper 50 are both moved while continuing to be pulled by the operation wire 60, the connection protrusion 30 comes out of the fitting hole 42 as shown in FIG. 8C. When the stopper 50 passes the position of the head portion 34 of the connection projection 30, the stopper 50 returns to the retaining shape by canceling the released shape in which the gap between the pair of arm portions 51 is widened. Since the vehicle body connecting portion 24 and the connecting protrusion 26 also have a connection structure of a ball joint, in the telescopic drive unit 20, the position of the socket 25 is changed in the vehicle width direction to be separated from the connecting protrusion 30. The tilting of the telescopic drive unit 20 in the direction) is allowed.

  When the socket 25 is disengaged from the connection protrusion 30 as shown in FIG. 8C, the restriction on the operation of the hinge 14 by the extension / contraction drive unit 20 is removed, so that the trunk lid 13 can be manually opened / closed. When the lock mechanism 15 is locked, the trunk lid 13 can be manually opened by unlocking the lock mechanism 15. Since the trunk lid 13 can be opened and the extension drive unit 20 can be exchanged and the state can be checked through the opening 12a of the luggage compartment 12, the workability is excellent. Further, when the socket 25 is separated from the hinge 14 by the operation of the release lever 62, the stopper 50 elastically deforms to release the fitting with respect to the connection projection 30 and the connection projection 30 comes out from the fitting hole 42. No damage is done to 30. Therefore, replacement of parts on the side of the vehicle body 10 or the hinge 14 is not required, and repair can be easily performed only by replacing the telescopic drive unit 20.

  As shown in FIGS. 8A to 8C, the operation wire 60 pulls the stopper 50 and the socket 25 in the vehicle width direction to separate the stopper 50 and the socket 25 from the connection protrusion 30. The pulling direction of the operation wire 60 with respect to the stopper 50 and the socket 25 at the time of this separation is shown by an arrow F in FIG. Therefore, in the wiring route of the operation wire 60 shown in FIG. 9, the operation wire 60 is oriented so as to move in the arrow F direction and connected to the stopper 50, whereby smooth transmission of force can be realized. In the present embodiment, the slit 49 provided in the socket 25 penetrates in the vehicle width direction and has a function of determining the extending direction of the operation wire 60 along the arrow F immediately before the stopper 50. There is.

  The extending direction of the operation wire 60 may be determined by a structure other than the slit 49. For example, in the socket 25, the extension portion 48 is further extended in the radial direction (to the left in FIG. 8), and a wire guide portion different from the slit 49 is provided at a position farther from the stopper 50 than the transmission portion 47. Good. Since the orientation of the operation wire 60 is determined between the wire guide portion and the slit 49, it is possible to avoid the routing in which the operation wire 60 is sharply bent in the immediate vicinity of the wire end 61 and the wire connection portion 52.

  It is also possible to provide the hinge 14 with a wire guide portion for directing the operation wire 60. When the trunk lid 13 is opened and closed, the socket 25 moves about the shaft 14 a of the hinge 14. Therefore, even with the configuration in which the wire guide portion is provided on the hinge 14, the operation wire 60 can be reasonably routed in the direction in which the socket 25 is separated from the connection protrusion 30. Specifically, a bracket may be added to the hinge 14 to form the wire guide portion on the bracket.

  As described above, the final orientation of the operation wire 60 is preferably performed by the wire guide portion (including the slit 49) provided in the socket 25 or the hinge 14 that is a movable portion with respect to the vehicle body 10. On the other hand, at an intermediate position of the operation wire 60 which is at a certain distance from the socket 25, the extending direction of the operation wire 60 can be determined by the wire guide portion provided on the vehicle body 10 (the inner surface of the luggage compartment 12 or the like).

  As described above, in the opening / closing body drive device of the present embodiment, the connection between the expansion / contraction drive unit 20 and the hinge 14 in the luggage compartment 12 is released by operating the release lever 62 arranged outside the luggage compartment 12. It Therefore, even if the telescopic drive unit 20 malfunctions or the like, the trunk lid 13 can be opened and closed by a simple operation without breaking the trunk lid 13 and the hinge 14, and necessary repair can be performed. ..

  In particular, when the stopper 50 is pulled by the operation wire 60, not only the stopper 50 changes to the released shape, but also the stopper 50 abuts the socket 25 to transmit the force in the separating direction. Therefore, it is possible to perform the releasing operation of the stopper 50 and the separating operation of the socket 25 by the unidirectional pulling operation by the operation wire 60, and the operation system having a simple structure with a small number of parts can be used. The telescopic drive unit 20 can be reliably operated until the separation is completed.

  Further, by pulling the operation wire 60, the pair of arm portions 51 are moved along the outer surface (the neck portion 33 and the head portion 34) of the connection protrusion 30 to elastically deform the stopper 50. This structure has a simple structure for transmitting the operating force from the release lever 62 to the socket 25 and the stopper 50, and is excellent in terms of cost and space efficiency.

  The present invention is not limited to the above embodiment, and can be implemented with various modifications. For example, the above-described embodiment is applied to disconnecting the socket 25 connected to the movable trunk lid 13 (hinge 14) side of the telescopic drive unit 20. It is also possible to apply to the connection release with the connection protrusion 26 of. In this case, the vehicle body connecting portion 24 becomes the socket of the present invention, and the connecting protrusion 26 becomes the protruding portion of the present invention. Then, the vehicle body connecting portion 24 and the connecting protrusion 26 have the same connecting structure as the socket 25 and the connecting protrusion 30 described above, and the connection between the vehicle body connecting portion 24 and the connecting protrusion 26 is performed by an operation from the outside of the luggage compartment 12. It can be released.

  Since the extension / contraction drive unit 20 rotates about the axis 24x of the vehicle body connecting portion 24, the position of the vehicle body connecting portion 24 with respect to the vehicle body 10 is substantially constant. Therefore, when the present invention is applied to the disconnection of the vehicle body connecting portion 24, it is easy and simple to arrange (orient) the operation wire connected to the vehicle body connecting portion 24 by using the structure on the vehicle body 10 side. On the other hand, since the vehicle body connecting portion 24 has a large distance from the vehicle compartment 11, when the release lever 62 is used as the operating means, the length of the operating wire is longer than that for connecting to the socket 25.

  On the contrary, when the present invention is applied to the disconnection of the socket 25 as in the above embodiment, the distance from the release lever 62 to the socket 25 is shorter than that of the vehicle body connecting portion 24, and therefore the length of the operation wire 60 is long. Can be shortened. On the other hand, regarding the installation and orientation of the operation wire 60, it is necessary to correspond to the socket 25 whose position is changed by the rotation of the telescopic drive unit 20.

  As described above, the present invention can be applied to the connection points at both ends of the expansion / contraction drive unit 20, and the connection points to be applied may be selected in consideration of their respective advantages. For example, if a housing portion that is opened and closed by a lid is provided on the outer surface of the vehicle body 10 on the side of the luggage compartment 12, and an operation means that replaces the release lever 62 is provided in the housing portion, from the operation means to the vehicle body connection portion 24. Since the distance can be shortened, it is easy to connect the operation wire extending from the operation means to the vehicle body connecting portion 24. Further, it is possible to use a rod-shaped transmission means or the like instead of the operation wire.

  In the above-described embodiment, when the operation wire 60 is pulled, the pair of arms 51 are pushed and expanded by the head portion 34 when passing through the head portion 34 of the connection protrusion 30, and the stopper 50 is elastically deformed. Unlike the configuration, a push-in portion (not shown) that abuts near the base ends of the pair of arm portions 51 (near the boundary with the wire connection portion 52) is provided in the socket 25 (on the reference surface 41 or the transmission portion 47), When the stopper 50 is pulled by the operation wire 60, the gap between the pair of arm portions 51 can be expanded by the pressing force from the pushing portion. In this configuration, since the pair of arm portions 51 are elastically deformed around the base end as a fulcrum, the amount of deformation of the pair of arm portions 51 with respect to the movement amount of the stopper 50 in the radial direction of the socket 25 becomes large.

  As another form, a release operation unit that can be operated independently of the stopper 50 is provided, and when the operation force is transmitted from the operation wire 60 or the like, the release operation unit presses the pair of arm portions 51 from the inside and the space is released. It is also possible to adopt a configuration that expands. With this configuration, the stopper 50 can be formed into an open shape without depending on the shape of the head portion 34 of the connection protrusion 30, and therefore, it is easy to apply to a connection structure other than the ball joint.

  In the above-described embodiment, the stopper 50 that maintains the connection between the socket 25 and the connection protrusion 30 is a leaf spring, but a stopper other than a metal leaf spring can be used. For example, a stopper made of synthetic resin may be used. The stopper made of synthetic resin can form a portion corresponding to the pair of arm portions 51 in the above embodiment by appropriately setting the wall thickness. Further, as a wire connecting portion that replaces the wire connecting portion 52, it is possible to provide a stopper made of synthetic resin with a recess for accommodating the wire end 61.

  In the above-described embodiment, the supporting portion 14b of the hinge 14 is fixed to the trunk lid 13, and the trunk lid 13 and the hinge 14 operate integrally. Unlike the structure, the trunk lid 13 can be openably and closably supported by a link mechanism including a plurality of members that perform different operations. In this case, a connecting protrusion corresponding to the connecting protrusion 30 is provided on a specific component member of the link mechanism to connect the socket 25 of the extension / contraction drive unit 20.

  In a further different form, the trunk lid 13 is directly pivotally supported with respect to the vehicle body 10, and a connecting protrusion corresponding to the connection protrusion 30 is provided on the trunk lid 13 (the socket 25 of the extension / contraction drive unit 20 is located on the trunk lid 13 side). (Directly connected to) configuration is also applicable.

  That is, in the present invention, it is possible to select either the support portion (the hinge 14 or the link mechanism) that supports the opening / closing body or the opening / closing body itself as a target for providing the protruding portion to which the socket is connected. The configuration is not limited to the hinge 14.

  The present invention is suitable for the drive device that opens and closes the trunk lid as in the above-described embodiment, but can also be applied to a drive device for an opening / closing body other than the trunk lid. That is, it is applicable as long as it is an opening / closing body that opens and closes a space such as the luggage compartment 12 in a vehicle, and that a drive unit that drives the opening / closing body is arranged in the space.

  The embodiments of the present invention are not limited to the above-described embodiments and modifications, but may be variously changed, replaced, or modified without departing from the spirit of the technical idea of the present invention. Further, if the technical idea of the present invention can be realized in another way by the advancement of the technology or another derivative technology, the method may be implemented. Therefore, the claims cover all embodiments that may be included in the scope of the technical idea of the present invention.

10: vehicle body 11: vehicle compartment 12: luggage compartment (space)
12a: Opening 13: Trunk lid (opening / closing body)
14: Hinge 20: Telescopic drive unit (drive unit)
21: Motor unit 21a: Motor (driving source)
21b: Reduction gear mechanism 22: Guide tube 23: Advance / retreat rod 24: Vehicle body connecting portion 25: Socket 26: Connecting protrusion (projecting portion)
30: Connection protrusion (protrusion)
33: Neck part (small diameter part)
34: Head (large diameter part)
42: Fitting hole 45: Restriction surface 46: Pressing part 47: Transmission part 49: Slit (wire guide part)
50: Stopper 51: Arm 52: Wire connection part (intermediate part)
53: Protrusion 60: Operation wire (transmitting means)
61: Wire end 62: Release lever (operating means)

Claims (6)

An opening and closing body that is supported to open and close the opening of the space formed in the vehicle body,
A drive unit that is connected to the vehicle body side and the opening / closing body side, and changes the distance between the vehicle body side and the opening / closing body side connection portion by a driving force of a drive source to perform the opening / closing operation of the opening / closing body,
An opening / closing body drive device for a vehicle, comprising: the opening / closing body side or the vehicle body side provided with a protrusion for connection,
A socket provided in the drive unit, into which the protrusion is inserted and fitted,
A stopper that is supported by the socket and that changes into a retaining shape that regulates the separation of the socket from the protrusion, and a release shape that allows the socket to be separated from the protrusion,
Transmission means for transmitting a force that changes the stopper from the retaining shape to the releasing shape in response to the operation of the operating means provided outside the space;
An opening / closing body drive device for a vehicle, comprising:   The stopper has a pair of arm portions that change the distance between each other by elastic deformation, and an intermediate portion that connects the pair of arm portions, and widens the distance between the pair of arm portions to release from the retaining shape. The opening / closing body drive device for a vehicle according to claim 1, wherein the opening / closing body drive device changes in shape. The transmission means includes a wire that is connected to the intermediate portion and that pulls the stopper in a direction in which the socket is separated from the protruding portion in response to an operation of the operation means,
The opening / closing body drive device for a vehicle according to claim 2, wherein the socket has a transmission portion that receives a moving force of the stopper pulled by the wire, and moves together with the stopper to separate from the protrusion.   The opening / closing body drive device for a vehicle according to claim 3, wherein the socket includes a wire guide portion that determines a direction in which the wire extends in a direction in which the stopper is pulled. With the stopper retaining shape, the pair of arm portions are fitted to the small diameter portion of the protruding portion,
The vehicle opening / closing body according to claim 2, wherein when the wire is pulled to the stopper, the pair of arm portions come into contact with a large-diameter portion of the projecting portion and change into the released shape. Drive. The opening and closing body is a trunk lid capable of opening and closing the opening of the luggage compartment,
The opening / closing body drive device for a vehicle according to any one of claims 1 to 5, wherein the operation unit is provided in a vehicle compartment.

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