JP5021419B2 - Locking device for vehicle opening / closing body - Google Patents

Description

  The present invention relates to a locking device for a vehicle opening / closing body.

  Patent Document 1 discloses a conventional locking device for a vehicle opening / closing body. The locking device includes an attachment member, a fork, a pole, a switching unit, and a control unit.

  The attachment member is formed with an entrance through which the striker enters.

  The fork is swingably provided on the mounting member, and switches to a locked state where the striker is locked in the entrance, or a released state where the striker is unlocked in the entrance.

  The pole is swingably provided on the mounting member, and can fix or release the swing of the fork.

  The switching means acts on the pole to switch the fork from the locked state to the released state. The switching unit includes a driving unit that generates a driving force by electric power, and a switching lever that is normally in an initial position, swings when driven by the driving unit, and opens the swing of the fork by the pole. .

  The control means controls the switching means based on the operation of the open switch by the user. Specifically, the open switch is incorporated in an open / close handle provided in the vehicle opening / closing body, and the open switch is energized when the user pulls the open / close handle.

  In the conventional locking device having such a configuration, when the user starts the operation of the open switch, that is, when the user pulls the opening / closing handle, the control means controls the switching means based on that. Then, in the switching means, the switching lever is driven by the driving means to swing from the initial position, and acts on the pole to swing the pole. As a result, the pole releases the swing of the fork, and the fork switches from the locked state to the released state.

  Thereafter, when the operation of the open switch by the user is finished, that is, when the user returns the opening / closing handle, the control means controls the switching means based on that. Then, in the switching means, the switching lever swings in the reverse direction and returns to the initial position, and accordingly, the pole also swings in the reverse direction. As a result, the pole can fix the swing of the fork again, and the fork can return to the locked state from the released state.

  Thus, the locking device automatically switches the fork from the locked state to the released state based on the start of the operation of the open switch by the user, and automatically performs the fork based on the end of the operation of the open switch by the user. Can be brought into a state capable of returning from the released state to the locked state.

  As another prior art, when a certain time has elapsed from the start of the operation of the open switch by the user, the control means can control the switching means based on that and the fork can be returned from the released state to the locked state. Some are designed to be in the correct state.

JP 2002-339621 A

  By the way, in the above conventional locking device, when the switching lever is returned to the initial position based on the end of the operation of the open switch by the user, or when a certain time has elapsed from the start of the operation of the open switch by the user. In the case of returning the lever to the initial position, the pole remains in the state where the swing of the fork is released until the switching lever returns to the initial position, and the fork is in the released state. Therefore, in this state, if the opening / closing body is opened and then immediately closed, the striker is not locked to the fork and the opening / closing body cannot be closed immediately.

  The present invention has been made in view of the above-described conventional situation, and solves the problem of providing a locking device for a vehicle opening / closing body that can be suitably dealt with by a user who wants to open and close the opening / closing body immediately. It is an issue that should be done.

The vehicle opening / closing body locking device according to the first aspect of the present invention comprises an attachment member formed with an entrance into which a striker enters;
A fork that is swingably provided on the mounting member and switches to a locked state in which the striker is locked in the entrance, or a release state in which the striker is unlocked in the entrance. ,
A pole provided on the mounting member so as to be swingable and capable of fixing or opening the swing of the fork;
Switching means for acting on the pole to switch the fork from the locked state to the released state;
In a vehicular opening / closing body locking device comprising a control means for controlling the switching means based on an operation of an open switch by a user,
The switching unit includes a driving unit that generates a driving force by electric power;
A switching lever that is in an initial position when the open switch is not operated , swings when driven by the driving means, and opens the swing of the fork by the pole;
The drive means includes a motor, a gear mechanism that transmits rotation of the motor to the switching lever, and a return spring that biases the switching lever toward the initial position,
The control means is a fork angle detection means for detecting when the fork swings and exceeds a release angle at which the release state is released by contacting or moving away from the fork;
If there is an operation of the open switch, the power is supplied to the motor, the switching lever is swung so that the fork is in the released state, and the swing of the fork is released by the pole, If the fork angle detection means detects that the fork swings and exceeds the release angle, the power supply to the motor is stopped, and the switching lever is moved by the urging force of the return spring. Lever control means for returning to the initial position.

In the vehicle opening / closing body locking device according to the first aspect of the present invention (hereinafter simply referred to as “locking device”), when the operation of the open switch by the user is started, the lever control means is to supply electric power to the motor. Then, in the switching means, the switching lever is driven by the driving means to swing from the initial position, and acts on the pole to swing the pole. As a result, the pole releases the swing of the fork, and the fork switches from the locked state to the released state.

After that, if the fork angle detection means detects that the fork swings and exceeds the release angle, the lever control means stops supplying electric power to the motor based on the detection. Then, due to the urging force of the return spring, in the switching means, the switching lever swings in the reverse direction and returns to the initial position, and accordingly, the pole also swings in the reverse direction. As a result, the pole can fix the swing of the fork again, and the fork can return to the locked state from the released state.

  For this reason, after the fork exceeds the release angle, the pole returns to a state in which the swing of the fork can be fixed in a shorter time than before. And when the fork exceeds the release angle, the opening / closing body can be further opened. Even if the user tries to close the opening / closing body immediately after the opening, the pole can immediately fix the swinging of the fork, so that the opening / closing body can be closed without any problem.

  Therefore, the locking device of the first invention can suitably cope with a user who tries to close the opening / closing body immediately after opening the opening / closing body.

The lock device of the first invention, the fork, together are biased such that the release state, the latch surface extending radially outwardly on an outer peripheral surface of that can be formed. One end of the pole is urged toward the outer peripheral surface of the fork and abuts against the latch surface to fix the swing of the fork, and the other end of the pole moves away from the outer peripheral surface of the fork. It can be free.

  In this case, the locking device according to the first aspect of the invention can surely achieve the effects of the present invention, and can reduce the manufacturing cost due to the simplified device configuration.

In the locking device according to the first aspect of the present invention, the locked state includes a fully locked state where the fork locks the striker at the bottom of the entrance and an intermediate locked state where the fork locks the striker at the intermediate portion of the entrance. Thus, the latch surface can be composed of a full latch surface that contacts one end of the pole in the fully locked state and a half latch surface that contacts the one end of the pole in the intermediate locked state. In this case, release angle, fork and a angle der Turkey become released state from the intermediate locking state preferred.

Release angle provisional and fork is to be set smaller than the angle at which the released state from the intermediate locking state, there arises a problem described below.

  That is, when the user tries to open the opening / closing body by operating the open switch, the fork angle detection means and the lever control means allow the pole to fix the swing of the fork before the fork is released. I will return. For this reason, even if a user tries to open the opening / closing body further, one end of the pole comes into contact with the half latch surface and is in an intermediate locking state. For this reason, unless the user operates the open switch again to release the fork, the user cannot open the opening / closing body further, which is inconvenient.

In this regard, the release angle, when the angle of the fork is released state from the intermediate locking state, after the fork has a release state, the fork angle detecting means and the lever control means, Paul fixes the swing of the fork Return to possible state. For this reason, even if the user tries to open the opening / closing body further, one end of the pole passes through the half latch surface, so that the intermediate locking state does not occur. For this reason, the user can further open the opening / closing body without any trouble.

  Further, in this locking device, even when the opening / closing operation of the opening / closing body by the user is insufficient, the opening / closing body can be held in a half-open state, so that safety and crime prevention can be ensured. .

The vehicle opening / closing body locking device according to the second aspect of the present invention comprises an attachment member formed with an entrance into which a striker enters,
A fork that is swingably provided on the mounting member and switches to a locked state in which the striker is locked in the entrance, or a release state in which the striker is unlocked in the entrance. ,
A pole provided on the mounting member so as to be swingable and capable of fixing or opening the swing of the fork;
Switching means for acting on the pole to switch the fork from the locked state to the released state;
In a vehicular opening / closing body locking device comprising a control means for controlling the switching means based on an operation of an open switch by a user,
The switching unit includes a driving unit that generates a driving force by electric power;
A switching lever that is in an initial position when the open switch is not operated , swings when driven by the driving means, and opens the swing of the fork by the pole;
The drive means includes a motor, a gear mechanism that transmits rotation of the motor to the switching lever, and a return spring that biases the switching lever toward the initial position,
The control means detects a pole angle detecting means for detecting that the pole has been swung and the swing angle of the fork has been released by contacting or moving away from the pole.
If there is an operation of the open switch, the power is supplied to the motor, the switching lever is swung so that the fork is in the released state, and the swing of the fork is released by the pole, If the pole angle detecting means detects that the pole swings and exceeds the opening angle, the power supply to the motor is stopped, and the switching lever is moved by the urging force of the return spring. Lever control means for returning to the initial position.

  In the lock device of the second invention having such a configuration, when the operation of the open switch by the user is started, the fork is switched from the locked state to the released state as in the lock device of the first invention.

Thereafter, if the pole angle detection means detects that the pole swings and exceeds the opening angle, the lever control means stops supplying electric power to the motor based on the detection. Then, due to the urging force of the return spring, in the switching means, the switching lever swings in the reverse direction and returns to the initial position, and accordingly, the pole also swings in the reverse direction. As a result, the pole can fix the swing of the fork again, and the fork can return to the locked state from the released state.

  For this reason, after the pole exceeds the opening angle, the pole returns to a state in which the swing of the fork can be fixed in a shorter time than before. For this reason, even if the user tries to close the opening / closing body immediately after the opening, the pole can immediately fix the swing of the fork, and therefore the opening / closing body can be closed without any problem.

  Therefore, the locking device according to the second aspect of the invention can also suitably cope with a user who tries to close the opening / closing body immediately after opening it.

The lock device of the second invention, the fork, together are biased such that the release state, the latch surface extending radially outwardly on an outer peripheral surface of that can be formed. One end of the pole is urged toward the outer peripheral surface of the fork and abuts against the latch surface to fix the swing of the fork, and the other end of the pole moves away from the outer peripheral surface of the fork. It can be free.

  In this case, the lock device of the second invention can surely achieve the effects of the present invention and can reduce the manufacturing cost by the simplified device configuration.

  As the fork angle detecting means and the pole angle detecting means, any means may be adopted as long as it can detect that the fork or the pole exceeds the release angle or the opening angle. For example, a lever type micro switch, a micro photo sensor, and other general ones can be employed.

  The locking device of the second invention is different from the locking device of the first invention in that the lever control means controls the switching means regardless of the swing angle of the fork. For this reason, in the second invention, it is difficult for the lever control means to consider how far the half latch surface of the fork is displaced. For this reason, the locking device of the second aspect of the invention is suitable for a locking device having a configuration that does not have an intermediate locking state.

  On the other hand, in the locking device of the first invention, the lever control means controls the switching means based on the swing angle of the fork. For this reason, in the first invention, the lever control means can easily consider how far the half latch surface of the fork is displaced. For this reason, the locking device of the first invention is suitable for a locking device having an intermediate locking state.

  Embodiments 1 and 2 embodying the first and second inventions will be described below with reference to the drawings. In addition, as shown in FIG. 1, the front-rear direction, the left-right direction, and the up-down direction are defined with the tailgate 9 side as the rear side. That is, the front side of the vehicle that is the opposite side of the tailgate 9 is defined as the front side. Further, the left side in the state facing the front of the vehicle (the back side in FIG. 1) is defined as the left side, and the right side in the state facing the front of the vehicle (the front side in FIG. 1) is defined as the right side. And the front-back direction, the left-right direction, and the up-down direction shown in FIGS. 2 to 8 and 10 all correspond to the respective directions in FIG.

  As shown in FIG. 1, a locking device 1 for a vehicle opening / closing body (hereinafter simply referred to as “locking device 1”) according to a first embodiment is applied to an automobile. The locking device 1 is disposed on the vehicle inner side below a tailgate 9 that is a specific mode of a vehicle opening / closing body. Then, as will be described later, the lock device 1 is in a locked state in which the striker 99 disposed in the vehicle body 8 and the fork 11 are engaged or disengaged to hold the tailgate 9 closed. Or it is set as the cancellation | release state which can be open | released. Hereinafter, each component of the locking device 1 will be described in detail.

  As shown in FIGS. 1 and 2, the locking device 1 includes a mounting member 90, a fork 11, a pole 12, a switching unit 50, and a control unit 60.

  The attachment member 90 has an attachment member main body 93 formed by bending a steel plate. The attachment member main body 93 is formed with a pair of attachment portions 93b extending substantially horizontally in the left-right direction on the upper end side, and a first storage chamber 93a recessed downward. As shown in FIG. 1, the attachment portion 93 b is for fastening and fixing to the lower end surface of the tailgate 9. As shown in FIGS. 1 and 2, a fork 11 and a pole 12 described later are stored in the first storage chamber 93a. Further, as shown in FIG. 2, the first storage chamber 93a is formed with an entrance 91 that is deeply cut out in a groove shape from the center of the lower edge toward the upper side. The striker 99 relatively enters the entrance 91 when the locking device 1 moves as the tailgate 9 opens and closes.

  Further, as shown in FIG. 1, the attachment member 90 includes a first housing 91 and a second housing 92 erected on the rear end side of the upper surface of the attachment member main body 93.

  As shown in FIGS. 2 and 3, the first housing 91 and the second housing 92 are formed in a substantially box shape by injection molding of a thermoplastic resin. Then, the second housing chamber 91a is formed inside by assembling the first housing 91 located on the vehicle inner side (front) and the second housing 92 located on the tail gate 9 side (rear). It has become so. In the second storage chamber 91a, switching means 50 described later is stored.

  As shown in FIG. 2, the fork 11 and the pole 12 are accommodated in the first storage chamber 93 a and are provided so as to sandwich the entrance 91 from the left and right.

  The fork 11 is disposed on the left side of the entrance 91 (the left side when facing the front of the vehicle as shown in FIG. 2), and stands up from the bottom of the mounting member main body 93 into the first storage chamber 93a. The pivot shaft 14a is pivotally supported by the pivot shaft 14a. The fork 11 is biased by a coil spring (not shown) so as to swing counterclockwise around the swing shaft 14a.

  A portion of the fork 11 located on the entrance 91 side is branched into an upper convex portion 11a and a lower convex portion 11b. And the striker 99 which entered into the entrance 91 is stored in the recessed part 11c formed between the upper convex part 11a and the lower convex part 11b. The state shown in FIG. 2 is a state where the fork 11 locks the striker 99 at the bottom of the entrance 91 (referred to as a fully locked state (full latched state)). A full latch surface 19a that can be in contact with a stopper portion 12a, which will be described later, is formed on the tip side facing the pole 12 of the upper convex portion 11a.

  The outer peripheral edge of the fork 11 is formed in a circular arc shape in the clockwise direction from the tip of the upper convex portion 11a, and a step portion 11d that expands radially outward is provided in the middle. The “clockwise direction” and “counterclockwise direction” in this embodiment are based on the state facing the cross-sectional view of FIG. A half latch surface 19b that can be in contact with a stopper portion 12a, which will be described later, is formed on the tip side of the step portion 11d that faces the pole 12.

  Further, on the outer peripheral edge of the fork 11, a fork angle detecting convex portion 11e protruding in the radially outward direction is provided at a position away from the step portion 11d in the clockwise direction. The fork angle detection convex portion 11e abuts on a fork angle detection sensor 71 described later so that the fork angle detection sensor 71 detects that the fork 11 swings and exceeds a release angle α (described later). It has become.

  The pole 12 is disposed on the right side of the entrance 91 (the right side when facing the front of the vehicle as shown in FIG. 2), and is erected from the bottom of the mounting member main body 93 into the first storage chamber 93a. The pivot shaft 14b is pivotally supported. The pole 12 is biased by a coil spring (not shown) so as to swing clockwise around the swing shaft 14b.

  A portion of the pole 12 located on the entrance 91 side is formed so as to protrude toward the upper convex portion 11a of the fork 11, and the tip side thereof is a stopper portion 12a. The stopper portion 12a is fixed so as not to swing the fork 11 counterclockwise by contacting the full latch surface 19a of the upper convex portion 11a in a state where the striker 99 is locked at the bottom of the entrance 91. Thus, a completely locked state is achieved.

  A portion of the pole 12 positioned above the swinging shaft 14b is formed so as to branch toward the lower surface of the first housing 91 and the second housing 92 while branching off from the stopper portion 12a. Part 12b. Although the details will be described later, the contacted portion 12b is pushed and displaced counterclockwise when the contact portion 51b which is one end of the switching lever 51 contacts.

  As shown in FIG. 4, when the abutted portion 12b is displaced counterclockwise, the pole 12 swings counterclockwise around the swing shaft 14b while resisting the biasing force of the coil spring. It has become. At this time, since the stopper portion 12a is separated from the full latch surface 19a of the fork 11, the pole 12 opens the fork 11. As a result, as shown in FIGS. 4 to 7, the fork 11 swings counterclockwise around the swinging shaft 14 a by the biasing force of the coil spring, and the striker 99 is displaced in a direction to leave the entrance 91. As a result, as shown in FIG. 7, the fork 11 is switched to a release state in which the striker 99 is unlocked in the entrance 91.

On the contrary, when the striker 99 enters the entrance 91, the fork 11 and the pole 12 operate in reverse to the above-described operations, so that they are attached toward the outer peripheral surface of the fork 11 as shown in FIG. The biased stopper portion 12a contacts the half latch surface 19b to fix the fork 11. The state shown in FIG. 8 is a state in which the fork 11 locks the striker 99 at the intermediate portion of the entrance 91 (referred to as an intermediate locking state (half latch state)). As shown in FIG. 2 , when the striker 99 enters the bottom of the entrance 91, the fork 11 swings to the original state, and the stopper portion 12a comes into contact with the full latch surface 19a to be in a completely locked state. Return.

  As shown in FIGS. 2 and 3, the switching unit 50 is stored in the second storage chamber 91 a and includes a switching lever 51 and a driving unit 80.

  The switching lever 51 has an elongated plate shape in which a sector gear 82d is formed in the upper part, a shaft hole 51a is formed in the center, and a contact part 51b is formed in the lower part by injection molding of a thermoplastic resin.

  The shaft hole 51 a is inserted through a swinging shaft 92 c that protrudes from the inside of the second housing 92 toward the first housing 91. Therefore, the switching lever 51 can swing around the swing shaft 92c. FIG. 2 shows a state where the switching lever 51 is in the initial position. FIG. 6 shows a state where the switching lever 51 is at the maximum swing position.

  As shown in FIG. 2, the contact part 51b protrudes below the opening 91d formed on the lower surface side of the first housing 91 and the second housing 92, and extends to the left side of the contacted part 12b. .

  A small-diameter gear 82c and a worm wheel 82b are disposed above the sector gear 82d, that is, on the upper right side of the second storage chamber 91a. The small-diameter gear 82c located on the front side and the worm wheel 82b located on the rear side are coaxial, and are integrally formed by injection molding of a thermoplastic resin or cutting processing of a metal material. As shown in FIG. 3, the small-diameter gear 82 c and the worm wheel 82 b include a boss portion 92 b protruding from the inside of the second housing 92 toward the first housing 91, and a boss portion 92 b inside the first housing 91. It is rotatably supported by a rotating shaft 95 whose both ends are inserted and fixed in a recessed portion 91b that is recessed in the facing portion.

  As shown in FIGS. 2 and 3, the small diameter gear 82c meshes with the sector gear 82d. On the other hand, the worm wheel 82b meshes with a worm gear 82a disposed below. The worm gear 82a is fixed to the rotation shaft of the motor 81 disposed on the upper left side of the second storage chamber 91a so as to be integrally rotatable. The motor 81 is electrically connected to a lever control means 61, which will be described later, and is controlled to rotate.

  As shown in FIG. 3, an annular recess 92d coaxial with the worm wheel 82b is formed on the rear surface side of the worm wheel 82b, and a return spring 83 is disposed therein. As shown in FIG. 2, one end of the return spring 83 is locked to a housing side locking portion 83a that protrudes from the second housing 92 toward the rear surface side of the worm wheel 82b. On the other hand, the other end of the return spring 83 is locked to a worm wheel side locking portion 83b that protrudes from the rear surface side of the worm wheel 82b toward the second housing 92. For this reason, the worm wheel 82b is urged to rotate clockwise by the return spring 83.

  A gear mechanism 82 is configured by including a sector gear 82d, a small diameter gear 82c, a worm wheel 82b, and a worm gear 82a. In addition, the drive unit 80 is configured to include a motor 81, a gear mechanism 82, and a return spring 93. Then, as will be described later, the driving means 80 causes the switching lever 51 to reciprocate between the initial position shown in FIG. 2 and the maximum swing position shown in FIG. 6 by the motor 81, the gear mechanism 82, and the return spring 83. .

  As shown in FIG. 2, the control means 60 is a general electronic control circuit installed inside the vehicle, and includes a lever control means 61 and a fork angle detection sensor 71.

  The lever control means 61 is built in the control means 60, and controls the motor 81 and the like based on the state of the open switch 9b and the fork angle detection sensor 71 to reciprocate the switching lever 51, as will be described later. . The lever control means 61 is electrically connected to an open switch 9b built in the opening / closing handle 9a of the tailgate 9. For this reason, when the user pulls or returns the opening / closing handle 9a and the open switch 9b is energized or de-energized, the lever control means 61 determines the operation status of the open switch 9b by the user each time. Can be detected.

  The fork angle detection sensor 71 is a lever type micro switch in the present embodiment, and is disposed above the fork 11 in the first storage chamber 93a. Then, the fork 11 swings counterclockwise around the swinging shaft 14a, and the half latch surface 19b is positioned immediately before the stopper portion 12a as shown in FIG. 5, or as shown in FIG. When the latch surface 19b swings from the state where it abuts against the stopper portion 12a to the state immediately after the half latch surface 19b shown in FIG. 6 passes the stopper portion 12a, the fork angle detection convex portion 11e is moved to the fork angle detection sensor 71. Displace it in contact with the lever. As a result, the fork angle detection sensor 71 changes from the non-energized state to the energized state. Here, on the basis of the initial state of the fork 11 shown in FIG. 2, the angle at which the fork 11 switches from the intermediate locking state shown in FIG. 8 to the released state shown in FIG. 6 is the release angle α (FIGS. 2 and 4 to FIG. 8).

  The fork angle detection sensor 71 is electrically connected to the lever control means 61 as shown in FIG. Therefore, if the fork angle detection convex portion 11e comes into contact with or separates from the lever of the fork angle detection sensor 71 and the fork angle detection sensor 71 enters the energized state or the non-energized state, the lever control means 61 In each case, it is possible to detect whether or not the fork 11 has swung to exceed the release angle α.

  In the initial state shown in FIGS. 1 and 2, the locking device 1 of the first embodiment having such a configuration is as follows when the user operates the opening / closing handle 9 a to open the tailgate 9. Thus, the fork 11 is automatically switched from the locked state to the released state so that the tailgate 9 can be opened.

  A series of operations will be described while showing a correlation among the state of the open switch 9b, the state of the fork angle detection sensor 71, and the swing displacement of the switching lever 51 in the time chart of FIG.

  In the initial state shown in FIGS. 1 and 2, the open switch 9b and the fork angle detection sensor 71 are in a non-energized state (OFF), and the switching lever 51 is in the initial position.

  Next, when the user pulls the opening / closing handle 9a to open the tailgate 9, the open switch 9b is energized (ON), which is detected by the lever control means 61 to supply power to the motor 81. The worm gear 82a is rotated. Thereby, the worm wheel 82b meshing with the worm gear 82a rotates counterclockwise, and the small-diameter gear 82c also rotates counterclockwise integrally with the worm wheel 82b. As shown in FIGS. 4 to 6, the switching lever 51 swings clockwise around the swing shaft 92c via the sector gear 82d that meshes with the small-diameter gear 82c. It acts on the pole 12 via 12b.

  As a result, as described above, the pole 12 opens the fork 11, and the fork 11 swings counterclockwise around the swing shaft 14a. As shown in FIG. 6, when the fork 11 exceeds the release angle α, the fork angle detection convex portion 11 e comes into contact with the lever of the fork angle detection sensor 71. For this reason, the fork angle detection sensor 71 is energized (ON), the lever control means 61 detects it, and the supply of electric power to the motor 81 is stopped. As a result, the switching lever 51 is driven by the worm wheel 82b and the small-diameter gear 82c urged clockwise by the return spring 83, and swings in the reverse direction from the maximum swing position shown in FIG. (Refer to the time chart in FIG. 9). For this reason, the pole 12 also swings in the reverse direction, and the stopper portion 12a is urged against the outer peripheral surface of the fork 11, so that the fork 11 can be fixed at any time. Then, if the user further opens the tailgate 9 from the state shown in FIG. 6, the fork 11 swings to the state shown in FIG. 7, and the striker 99 is detached from the entrance 91. On the other hand, if the user tries to close the tailgate 9, the striker 99 enters the entrance 91 and swings the fork 11 in the reverse direction, so that the fork 11 and the pole 12 operate in the reverse manner. . When the striker 99 enters the intermediate portion of the entrance 91, the intermediate locking state shown in FIG. 8 is obtained, and when the striker 99 enters the bottom of the entrance 91, the full locking state shown in FIG.

  As described above, the locking device 1 automatically switches the fork 11 from the locked state to the released state based on the start of the operation of the open switch 9b by the user, and the fork 11 swings to set the release angle α. Based on the exceeding, the fork 12 can be automatically returned to the locked state from the released state.

  Therefore, the lock device 1 can further open the tailgate 9 as shown in FIG. 7 when the fork 11 exceeds the release angle α. Also, even if the user tries to close the tailgate 9 immediately after opening the tailgate 9, as shown in FIGS. 8 and 1, the pole 12 immediately fixes the swing of the fork 11 so that it is in an intermediate locked state or a fully locked state. Therefore, the tailgate 9 can be closed without any problem.

  Therefore, the locking device 1 according to the first embodiment can suitably cope with a user who tries to close the tailgate 9 immediately after opening the tailgate 9.

  In addition, as described above, the locking device 1 fixes the swinging of the fork 11 by the stopper portion 12a being urged toward the outer peripheral surface of the fork 11 and contacting the full latch surface 19a or the half latch surface 19b. A simplified device configuration is employed in which the swing of the fork 11 is released when the stopper portion 12 a is separated from the outer peripheral surface of the fork 11. For this reason, this locking device 1 can also reduce the manufacturing cost.

  Furthermore, the locking device 1 is configured such that the locking state is a complete locking state and an intermediate locking state by the above-described full latch surface 19a and half latch surface 19b. Here, if the release angle α is set to be smaller than the angle at which the fork 11 is released from the intermediate locking state, the following problems occur.

  That is, when the user operates the opening switch 9b to open the tailgate 9, the fork angle detection sensor 71 and the lever control means 61 allow the pole 12 to swing the fork 11 before the fork 11 is released. It returns to the state where the movement can be fixed. For this reason, even if the user tries to open the tailgate 9 further, the stopper portion 12a comes into contact with the half latch surface 19b to be in an intermediate locked state. For this reason, unless the user operates the open switch 9b again to bring the fork 11 into a released state, the tailgate 9 cannot be further opened, which is inconvenient.

  In this regard, in the locking device 1 of the first embodiment in which the release angle α is an angle at which the fork 11 is released from the intermediate locking state, the fork angle detection sensor 71 and lever control are performed after the fork 11 is released. By means 61, the pole 12 returns to a state in which the swing of the fork 11 can be fixed. For this reason, even if the user tries to open the tailgate 9 further, the stopper portion 12a passes through the half latch surface 19b, so that the intermediate locking state does not occur. For this reason, the user can further open the tailgate 9 without any trouble.

  Moreover, in this locking device 1, even when the opening / closing operation of the tailgate 9 by the user is insufficient, the tailgate 9 can be held in a half-open state, so that safety and crime prevention are ensured. be able to.

  Here, in the locking device 1 of the first embodiment, a comparative example in which the condition for returning the switching lever 51 from the maximum swing position to the initial position is changed in the same manner as in the conventional locking device is shown in FIGS. c). Except for the return condition of the switching lever 51, all remains the lock device 1 of the first embodiment.

  The time chart of FIG. 9B shows a case where the switching lever 51 is returned to the initial position based on an operation for returning the opening / closing handle 9a by the user, that is, an operation for changing the open switch 9b from the energized state to the non-energized state. ing. In this case, if the user returns the opening / closing handle 9a too early, the fork 11 tends to be in a state where the release angle α is not exceeded. In this state, as described above, the tailgate 9 cannot be further opened from the intermediate locking state. Therefore, the user returns the opening / closing handle 9a after a sufficiently long time. For this reason, the time for the switching lever 51 to return to the initial position also tends to be longer than that of the locking device 1 of the first embodiment.

  The time chart of FIG. 9C shows a case where the switching lever 51 is returned to the initial position when a predetermined time has elapsed since the user pulled the opening / closing handle 9a. In this case as well, if the setting of the fixed time is made too short, the fork 11 tends to be in a state where it does not exceed the release angle α. Even in this state, similarly to the case shown in FIG. 9B, the tailgate 9 cannot be further opened from the intermediate locking state. For this reason, when setting a certain time, a sufficiently long time is easily set. For this reason, the time for the switching lever 51 to return to the initial position also tends to be longer than that of the locking device 1 of the first embodiment.

  As described above, the locking device 1 according to the first embodiment can cope with a user who tries to close the tailgate 9 immediately after opening the tailgate 9 as compared with the conventional locking device.

  The locking device according to the second embodiment employs a fork 211 and a pole angle detection sensor 72 as shown in FIG. 10 instead of the fork 11 and the fork angle detection sensor 71 in the locking device 1 according to the first embodiment. The control means 61 controls the switching means 50 based on the pole angle detection sensor 72. Other configurations are the same as those of the locking device 1 of the first embodiment. For this reason, the same number is attached | subjected about the same structure and description is abbreviate | omitted.

  The outer peripheral edge of the fork 211 is only formed in a circular arc shape in the clockwise direction from the tip of the upper convex portion 11a, and the step portion 11d, the half latch surface 19b, and the fork angle detecting convex portion in the fork 11 of the first embodiment. No one corresponding to 11e is formed.

  The lever control means 61 controls the motor 81 and the like based on the state of the open switch 9b and the pole angle detection sensor 72, and reciprocates the switching lever 51. When the user pulls or returns the open / close handle 9a and the open switch 9b is energized or de-energized, the lever control means 61 detects the operation state of the open switch 9b by the user each time. It is possible.

  In this embodiment, the pole angle detection sensor 72 is a lever type micro switch, and is disposed on the right side of the pole 12 in the first storage chamber 93a. Then, from the initial state shown by the broken line in FIG. 10, the pole 12 is in a state where the stopper portion 12a is not separated from the outer peripheral surface of the fork 211 and can contact the full latch surface 19a. When swinging to the open state, the right side surface of the pole 12 contacts the lever of the pole angle detection sensor 72 and is displaced. As a result, the pole angle detection sensor 72 changes from the non-energized state to the energized state. Here, on the basis of the initial state of the pole 12 indicated by a broken line in FIG. 10, the angle at which the pole 12 is switched to the open state is the open angle β.

  In the locking device of the second embodiment having such a configuration, when the user starts the operation of the open switch 9b, the lever control means 61 detects it and supplies power to the motor 81 to turn on the worm gear 82a. Rotate. Then, similarly to the locking device 1 of the first embodiment, the switching lever 51, the pole 12 and the like operate, and the fork 211 switches from the locked state to the released state.

  Thereafter, if the pole angle detection sensor 72 detects that the pole 12 swings and exceeds the opening angle β, the lever control means 61 stops supplying power to the motor 81 based on the detection. Then, the switching lever 51 swings in the reverse direction and returns to the initial position, and accordingly, the pole 12 swings in the reverse direction. As a result, the pole 12 can fix the swing of the fork 211 again, and the fork 211 can return to the locked state from the released state.

  For this reason, in the locking device of the second embodiment, after the pole 12 exceeds the opening angle β, the pole 12 returns to a state in which the swing of the fork 211 can be fixed in a shorter time than the conventional one. For this reason, even if the user tries to close the tailgate 9 immediately after opening the tailgate 9, the pole 12 can immediately fix the swing of the fork 211, so that the tailgate 9 can be closed without any problem. Further, since the fork 211 is not formed to correspond to the half latch surface 19b of the first embodiment, the fork 211 can be opened without any trouble when the user tries to open the tailgate 9 further.

  Therefore, the locking device according to the second embodiment can also cope with a user who tries to close the tailgate 9 immediately after opening the tailgate 9.

  In the above, the present invention has been described with reference to the first and second embodiments. However, the present invention is not limited to the first and second embodiments, and can be appropriately modified and applied without departing from the spirit of the present invention. Needless to say.

  The present invention is applicable to a locking device for a vehicle opening / closing body.

It is a side view of the locking device of the opening-and-closing body for vehicles of Example 1. FIG. FIG. 2 is a cross-sectional view showing the II-II cross section of FIG. 1 according to the vehicle opening / closing body locking device of the first embodiment (the state in which the switching lever is in the initial position and the state in which the pawl is in the fully locked state); Show). FIG. 3 is a cross-sectional view showing the III-III cross section of FIG. 2 according to the locking device for the vehicle opening / closing body of the first embodiment. It is explanatory drawing which shows the state in the middle of rocking | fluctuating from the initial position to the maximum rocking | fluctuation position regarding the locking device of the vehicle opening / closing body of Example 1. FIG. It is explanatory drawing which shows the state in the middle of rocking | fluctuating from the initial position to the maximum rocking | fluctuation position regarding the locking device of the vehicle opening / closing body of Example 1. FIG. It is explanatory drawing which shows the state which concerns on the locking device of the opening / closing body for vehicles of Example 1, and the switching lever rock | fluctuated from the initial position to the maximum rocking | fluctuation position. It is explanatory drawing which shows the state in the middle of returning from the maximum rocking | fluctuation position to the initial position regarding the locking device of the vehicle opening / closing body of Example 1. FIG. It is explanatory drawing which shows the state which concerns on the locking device of the opening / closing body for vehicles of Example 1, and the state which the switching lever returned from the maximum rocking position to the initial position, and the pole has made the fork into the intermediate locking state. 6 is a time chart showing the correlation among the state of the open switch, the state of the fork angle detection sensor, and the swinging displacement of the switching lever according to the locking device for the vehicle opening / closing body of Example 1 and Comparative Example. It is explanatory drawing which shows the state which concerns on the locking device of the opening / closing body for vehicles of Example 2, and the switching lever rock | fluctuated from the initial position, and the pole exceeded the open angle.

Explanation of symbols

1, 2 ... Locking device 9 ... Vehicle opening / closing body (tailgate)
9b ... Open switch 11, 211 ... Fork 12 ... Pole 12a ... One end of the pole (stopper part)
19a, 19b ... Latch surface (19a ... Full latch surface, 19b ... Half latch surface)
DESCRIPTION OF SYMBOLS 50 ... Switching means 51 ... Switching lever 60 ... Control means 61 ... Lever control means 71 ... Fork angle detection means (fork angle detection sensor)
72. Pole angle detection means (pole angle detection sensor)
80 ... Driving means 90 ... Mounting member 91 ... Entrance 99 ... Striker α ... Release angle β ... Release angle

Claims (5)

A mounting member formed with an entrance for the striker to enter; and
A fork that is swingably provided on the mounting member and switches to a locked state in which the striker is locked in the entrance, or a release state in which the striker is unlocked in the entrance. ,
A pole provided on the mounting member so as to be swingable and capable of fixing or opening the swing of the fork;
Switching means for acting on the pole to switch the fork from the locked state to the released state;
In a vehicular opening / closing body locking device comprising a control means for controlling the switching means based on an operation of an open switch by a user,
The switching unit includes a driving unit that generates a driving force by electric power;
A switching lever that is in an initial position when the open switch is not operated , swings when driven by the driving means, and opens the swing of the fork by the pole;
The drive means includes a motor, a gear mechanism that transmits rotation of the motor to the switching lever, and a return spring that biases the switching lever toward the initial position,
The control means is a fork angle detection means for detecting when the fork swings and exceeds a release angle at which the release state is released by contacting or moving away from the fork;
If there is an operation of the open switch, the power is supplied to the motor, the switching lever is swung so that the fork is in the released state, and the swing of the fork is released by the pole, If the fork angle detection means detects that the fork swings and exceeds the release angle, the power supply to the motor is stopped, and the switching lever is moved by the urging force of the return spring. A locking device for a vehicle opening / closing body, comprising: lever control means for returning to an initial position. The fork together are biased such that the release state, the outer peripheral surface of that is formed latching surface extending radially outward direction,
One end of the pole is urged toward the outer peripheral surface of the fork and abuts against the latch surface to fix the swing of the fork, and the one end is separated from the outer peripheral surface of the fork. The opening / closing body locking device for a vehicle according to claim 1, wherein the swinging of the fork is released by means of. The locked state includes a fully locked state where the fork locks the striker at the bottom of the entrance and an intermediate locked state where the fork locks the striker at the intermediate portion of the entrance. ,
The latch surface comprises a full latch surface that contacts one end of the pole in the fully locked state and a half latch surface that contacts one end of the pole in the intermediate locked state,
The vehicle opening / closing body locking device according to claim 2, wherein the release angle is an angle at which the fork is changed from the intermediate locking state to the released state. A mounting member formed with an entrance for the striker to enter; and
A fork that is swingably provided on the mounting member and switches to a locked state in which the striker is locked in the entrance, or a release state in which the striker is unlocked in the entrance. ,
A pole provided on the mounting member so as to be swingable and capable of fixing or opening the swing of the fork;
Switching means for acting on the pole to switch the fork from the locked state to the released state;
In a vehicular opening / closing body locking device comprising a control means for controlling the switching means based on an operation of an open switch by a user,
The switching unit includes a driving unit that generates a driving force by electric power;
A switching lever that is in an initial position when the open switch is not operated , swings when driven by the driving means, and opens the swing of the fork by the pole;
The drive means includes a motor, a gear mechanism that transmits rotation of the motor to the switching lever, and a return spring that biases the switching lever toward the initial position,
The control means detects a pole angle detecting means for detecting that the pole has been swung and the swing angle of the fork has been released by contacting or moving away from the pole.
If there is an operation of the open switch, the power is supplied to the motor, the switching lever is swung so that the fork is in the released state, and the swing of the fork is released by the pole, If the pole angle detecting means detects that the pole swings and exceeds the opening angle, the power supply to the motor is stopped, and the switching lever is moved by the urging force of the return spring. A locking device for a vehicle opening / closing body, comprising: lever control means for returning to an initial position. The fork together are biased such that the release state, the outer peripheral surface of that is formed latching surface extending radially outward direction,
One end of the pole is urged toward the outer peripheral surface of the fork and abuts against the latch surface to fix the swing of the fork, and the one end is separated from the outer peripheral surface of the fork. The vehicle opening / closing body locking device according to claim 4, wherein the swinging of the fork is released by the above-described operation.

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