WO2016098851A1

WO2016098851A1 - Lid opening/closing device

Info

Publication number: WO2016098851A1
Application number: PCT/JP2015/085339
Authority: WO
Inventors: 雄太桜井
Original assignee: 株式会社城南製作所
Priority date: 2014-12-18
Filing date: 2015-12-17
Publication date: 2016-06-23
Also published as: JP2016117313A

Abstract

A lid opening/closing device 100 that is provided with a push rod 1 and with a plate member 5 that has a sliding contact pin 51a that is in sliding contact with a cam groove 10 that is formed in an outer circumferential surface 11a of the push rod 1. The cam groove 10 has: a first engagement groove section 15 and a second engagement groove section 16 that are engaged by the sliding contact pin 51a, which is on a sliding contact part 51 of the plate member 5, at different positions in the axial direction and the circumferential direction of the push rod 1; and a first connecting groove section 17 and a second connecting groove section 18 that are inclined in the axial direction and that connect the first engagement groove section 15 and the second engagement groove section 16.

Description

Lid opening / closing device

The present invention relates to a lid opening / closing device.

2. Description of the Related Art As a lid opening / closing device that can open and close a lid (lid) with respect to an opening of a vehicle, a lid opening / closing device that can switch between an open state and a closed state of a lid according to a pushing operation on the lid is known (for example, , See Patent Document 1).

The lid opening / closing device disclosed in Patent Document 1 advances and retreats between a pushing position pushed into the vehicle body side with the lid closing operation and a projecting position protruding in the axial direction from the pushing position with the lid opening operation. An axial push rod that moves, a cam follower that is attached to the push rod so as to be rotatable relative to the push rod, moves axially integrally with the push rod, an urging member that urges the push rod in the protruding direction, and a push rod And a case for supporting the cam follower so as to be movable in the axial direction and rotatable about the axis.

The push rod has a locking portion that locks in a locking hole provided on the inner side of the lid at a tip portion on the lid side in the axial direction. This locking portion rotates integrally with the rotation of the push rod, and this rotation switches between the locked state where the locking hole of the lid is locked and the unlocked state where the locked state is released. It is configured as follows.

Moreover, the lid opening / closing device disclosed in Patent Document 1 has a cam mechanism that rotates the push rod and the cam follower in accordance with the forward / backward movement of the push rod. The cam mechanism includes a slider formed on the outer periphery of the push rod, a guide hole for the push rod that slides with the slider to guide the axial movement and rotational movement of the push rod, and the outer periphery of the cam follower. A plurality of sliders provided, and a first cam projection and a second cam projection to which these sliders are locked are configured.

When the push rod moves from the projecting position to the pushing position in accordance with the lid closing operation, the push rod is pushed against the urging force of the urging member, so that the slider of the push rod becomes the push rod guide. By sliding through the hole, the push rod rotates with axial movement. By this rotation, the locking portion of the push rod is locked in the locking hole of the lid, and the lid is closed. At this time, since the slider of the cam follower is locked to the first cam projection, the push rod is held in the pushing position.

When the pushing operation is further performed in the closed state of the lid, the cam follower is released from being locked to the first cam protrusion, and the push rod is moved from the pushing position to the protruding position by the urging force of the urging member. . At this time, the push rod slides in the push rod guide hole, whereby the push rod rotates with the axial movement. By this rotation, the locking portion of the push rod is unlocked from the locking hole of the lid, and the lid is pushed in the opening direction by the axial movement of the push rod, and the lid is opened. It becomes a state. In this state, the push rod is held at the protruding position by the slider of the cam follower being locked to the second cam protrusion.

JP 2014-173422 A

In the device disclosed in Patent Document 1, since it is necessary to provide a plurality of first cam protrusions and second cam protrusions for locking the cam follower of the cam mechanism in the case, the shape of the cam mechanism becomes complicated, resulting in operation. It may cause defects.

It is an object of the present invention to provide a lid opening / closing device with improved operability with a simple configuration.

A lid opening / closing device according to an embodiment of the present invention is a lid opening / closing device capable of switching between an open state and a closed state of a lid by a pushing operation to a lid that is detachably attached to an opening of a vehicle body. Push rod that is formed in a shape and moves forward and backward in the axial direction between a pushed-in position that is pushed in with the closing operation of the lid and a protruding position that protrudes in the axial direction from the pushed-in position in accordance with the opening operation of the lid A case that supports the push rod so as to be movable in the axial direction, a biasing member that biases the push rod from the push-in position to the projecting position, and an axial movement that is impossible with respect to the push rod and circumferential movement A slidable contact pin that is movably supported by the case and is slidably contacted with a cam groove formed on an outer peripheral surface of the push rod, the cam groove having an axial direction of the push rod and A first locking groove portion and a second locking groove portion which are locked to the sliding contact pin at different positions in the direction; and the first locking groove portion and the second locking groove portion which are inclined in the axial direction. A first communication groove portion and a second communication groove portion communicating with each other, and the push rod is moved from the push-in position to the projecting position by a biasing force of the biasing member in response to the push-in operation at the push-in position. When the first contact groove portion is released from the sliding contact pin, the first contact groove portion is released, and the slide contact pin slides with the first communication groove portion. The rod rotates in one direction along with the axial movement, the second locking groove is locked to the sliding contact pin, and the biasing force of the biasing member responds to the pushing operation at the protruding position. When the push rod moves from the protruding position to the pushing position against The state in which the second locking groove portion is locked to the sliding contact pin is released, and the sliding rod is slid with the second communication groove portion to move the push rod in the axial direction. As a result, it further rotates in the one direction, and the first locking groove is locked to the sliding contact pin.

According to one embodiment of the present invention, it is possible to provide a lid opening / closing device with improved operability with a simple configuration.

FIG. 1 is a perspective view showing a fuel refueling part and its peripheral part of a vehicle in which the lid opening / closing device according to the present embodiment is used. FIG. 2 is an exploded perspective view showing the lid opening / closing device according to the present embodiment. FIG. 3A is a top view showing the lid opening / closing device. FIG. 3B is a front view showing the lid opening / closing device. FIG. 3C is a right side view showing the lid opening / closing device. FIG. 4A is a top view showing the push rod. FIG. 4B is a left side view showing the push rod. FIG. 4C is a front view showing the push rod. FIG. 4D is a right side view showing the push rod. FIG. 4E is a bottom view showing the push rod. FIG. 5 is a sectional view taken along line AA in FIG. 4B. FIG. 6 is a development view schematically showing the cam groove. FIG. 7A is a perspective view showing a push rod, a motor, and a sliding contact pin in one operation stage of the lid opening / closing device. FIG. 7B is a perspective view showing a push rod, a motor, and a sliding contact pin in another operation stage of the lid opening / closing device. FIG. 7C is a perspective view showing a push rod, a motor, and a sliding contact pin in another operation stage of the lid opening / closing device.

[Embodiment]
The configuration and operation of the lid opening / closing device according to the embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a perspective view showing a lid and a fuel supply unit that are opened and closed by a lid opening and closing device according to the present embodiment.

The lid 92 is attached to the opening 90a of the vehicle body 90 through a hinge 93 so as to be openable and closable, and opens and closes a fuel supply unit 91 provided inside the opening 90a. The lid opening / closing device 100 has a shaft-like push rod 1, and the lid 92 can be switched between an open state and a closed state by moving the push rod 1 forward and backward by a pushing operation to the lid 92.

The inner surface of the lid 92 (the surface facing the fuel refueling portion 91 in the closed state) is engaged by a substantially rectangular locking portion 12 formed at the distal end portion of the push rod 1 on the free end side. A stop 920 is formed. The locked portion 920 has a substantially rectangular opening 920a formed slightly larger than the locking portion 12, and is configured to accommodate the locking portion 12 of the push rod 1 in the opening 920a. Yes.

The lid opening / closing device 100 is incorporated in the vehicle body 90 so that a part of the push rod 1 protrudes outward at a position facing the locked portion 920 when the lid 92 is closed.

The push rod 1 of the lid opening / closing device 100 has a gap between a pushing position A that is pushed in with the closing operation of the lid 92 and a protruding position B that protrudes in the axial direction from the pushing position A with the opening action of the lid 92. It can move forward and backward, and is configured to rotate with this forward and backward movement. In FIG. 1, the push rod 1 at the pushing position A is indicated by a virtual line (two-dot chain line), and the push rod 1 at the protruding position B is indicated by a solid line. Details of configurations and operations of the lid opening / closing device 100 and the push rod 1 will be described later.

When the lid 92 is closed, the push rod 1 is moved in the axial direction from the protruding position B to the pushed position A by the pushing operation to the lid 92, and the engaging portion 12 of the push rod 1 is rotated according to the rotation accompanying the axial movement. The to-be-latched part 920 of the lid 92 is latched by this. Thereby, the lid 92 is fixed in the closed position.

When the pushing operation is performed again on the lid 92, the push rod 1 moves in the axial direction from the pushing position A to the protruding position B, and the lid 92 is moved by the locking portion 12 of the push rod 1 according to the rotation accompanying the axial movement. While the locked state of the locked portion 920 is released, the lid 92 is pushed out in the opening direction. As a result, the lid 92 is opened.

(Lid opening and closing device 100)
FIG. 2 is an exploded perspective view showing the lid opening / closing device. 3A to 3C are a top view, a front view, and a right side view showing the lid opening / closing device, respectively. 3A to 3C show a state where the push rod 1 is located at the protruding position B, and the cover 8 is not shown.

The lid opening / closing device 100 includes a push rod 1, a case 2 that supports the push rod 1 so as to be movable in the axial direction, and a coil spring as a biasing member that biases the push rod 1 in the direction from the pushing position A to the protruding position B. 3 and a plate member having a sliding contact pin 51a that is supported by the case 2 so as not to be axially movable and circumferentially movable with respect to the push rod 1 and is in sliding contact with the cam groove 10 formed on the outer peripheral surface 11a of the push rod 1. 5, a cover 8 that covers the opening 2 a of the case 2, a motor 6 accommodated in the case 2, and a regulating member 7 that regulates axial movement of the push rod 1 by rotation of the output shaft 60 of the motor 6.

The case 2 supports a part of the push rod 1, a plate member 5, a substantially rectangular housing part 20 for housing the motor 6, a holding part 21 held by the vehicle body 90, and the push rod 1 so as to be movable in the axial direction. And a cylindrical support portion 22.

The accommodating portion 20 includes a first accommodating chamber 20 a that accommodates the motor 6, and a second accommodating chamber 20 b that communicates with the first accommodating chamber 20 a and accommodates part of the plate member 5 and the push rod 1. The second accommodating portion 20b is provided with a fixing portion 23 for fixing the plate member 5, and the fixing portion 23 is formed with a fitting groove 23a into which the plate member 5 is fitted.

The support portion 22 has an upper end projecting outward from the upper surface of the housing portion 20, and a lower end portion housed in the second housing chamber 20 b of the housing portion 20. Further, the support portion 22 has an insertion hole 22a through which the push rod 1 is inserted, and the inner diameter thereof is set slightly larger than the outer diameter of the push rod 1. Further, the support portion 22 is formed with a substantially rectangular through hole 22 b on the outer peripheral surface at a position facing the cover 8.

The coil spring 3 is housed in a housing hole 14 (see FIG. 5) provided on the inner surface side of the push rod 1, one end abuts against the bottom surface 24 of the second housing chamber 20 b of the case 2, and the other end is a push rod. 1 abuts on the upper bottom surface 14a (see FIG. 5) of the accommodation hole 14 and is compressed in the axial direction. Thereby, the push rod 1 is always urged in the direction from the pushing position A to the protruding position B.

The plate member 5 is in the form of a long plate made of a metal material, and has a sliding contact portion 51 having a sliding contact pin 51a slidingly contacting the bottom surface of the cam groove 10 on one end side in the longitudinal direction, and the other end side in the longitudinal direction. Has a bent portion 52 formed to be bent in a substantially L shape.

The plate member 5 is supported so that it cannot move in the axial direction and cannot move in the circumferential direction with respect to the push rod 1 when the bent portion 52 is fitted into the fitting groove 23 a of the fixing portion 23 in the case 2. The plate member 5 is configured as a leaf spring in which the sliding contact pin 51 a of the sliding contact portion 51 is always elastically pressed toward the inner side in the radial direction of the push rod 1 toward the bottom surface of the cam groove 10.

The motor 6 is controlled by a control device (not shown), and is configured to be driven in conjunction with, for example, a lock / unlock switching operation of a door lock device that locks a vehicle door. In the present embodiment, the output shaft 60 rotates around the axis O in the direction of the arrow X shown in FIG. 2 when the door lock device performs the locking operation, and the unlocking operation is performed. The motor 6 is controlled so that the shaft 60 rotates in the direction opposite to the arrow X.

The regulating member 7 is externally fitted to the output shaft 60 of the motor 6, is formed on the rotating portion 70 that rotates with the rotation of the output shaft 60 of the motor 6, and the outer peripheral surface 70 a of the rotating portion 70. And a locking portion 71 that is inserted through the through-hole 22b.

The locking portion 71 has a substantially L-shaped cross section when viewed along the axis O, a protruding piece 710 formed to protrude radially outward from the outer peripheral surface 70 a of the rotating portion 70, and a protruding piece 710. And an extending piece 711 formed so as to extend perpendicularly to the axis O and in a direction close to the push rod 1.

When assembling the lid opening / closing device 100, first, the push rod 1 and the coil spring 3 are arranged on the outer side (upper side) of the case 2, and then the push rod 1 and the coil spring 3 are inserted through the support portion 22 of the case 2. Insert 22a. Then, the plate member 5 is accommodated in the second accommodation chamber 20b from the opening 2a of the case 2, the bent portion 52 of the plate member 5 is fitted into the fitting groove 23a of the fixing portion 23 in the case 2, and the plate member 5 is fitted to the case 2. Fixed against. Thereafter, the sliding contact pin 51 a of the plate member 5 is locked to the first locking groove portion 15 or the second locking groove portion 16 of the cam groove 10 of the push rod 1, and the motor 6 and the regulating member 7 are connected to the case 2. It accommodates in the 1st accommodating chamber 20a from the opening 2a side, and the cover 2 covers the opening 2a of the case 2. Thereby, the lid opening / closing device 100 is assembled.

Next, the configuration of the push rod 1 and the cam groove 10 will be described in detail with reference to FIGS. 4A to 6. 4A to 4D are a top view, a left side view, a front view, a right side view, and a bottom view showing the push rod 1, respectively. FIG. 5 is a sectional view taken along line AA in FIG. 4B. FIG. 6 is a developed view schematically showing the cam groove 10.

The push rod 1 is formed with a bottomed cylindrical shaft portion 11 that opens toward the bottom surface 24 of the case 2, a locking portion 12 that locks the locked portion 920 of the lid 92, and a smaller diameter than the shaft portion 11. The connecting portion 13 that connects the shaft portion 11 and the locking portion 12 is integrally provided.

On the outer peripheral surface 11 a of the shaft portion 11, a locking hole 11 b as a locked portion that is locked by the locking portion 71 of the regulating member 7 is pushed at a position facing the cover 8 at the pushing position A of the push rod 1. It is formed on a part of the rod 1 in the axial direction.

The locking portion 12 has a plate shape having a predetermined thickness in the axial direction, and has a substantially rectangular cross section when viewed from the upper surface as shown in FIG. 4A. The locking portion 12 is set such that a distance L (maximum distance in the longitudinal direction) connecting the intermediate points M of the pair of arc-shaped short sides 12 a linearly is larger than the outer diameter D of the shaft portion 11. (L> D).

As shown in FIGS. 4B to 4D and 6, the cam groove 10 is composed of a plurality of grooves having different depths formed on the outer peripheral surface 11 a of the shaft portion 11 in the push rod 1. The first locking groove portion 15 and the second locking groove portion 16 that are locked to the sliding contact pin 51a in the sliding contact portion 51 of the plate member 5 at different positions in the circumferential direction, and the first inclined tilted in the axial direction. The first communication groove portion 17 and the second communication groove portion 18 communicating the locking groove portion 15 and the second locking groove portion 16 are interposed between the first locking groove portion 15 and the second communication groove portion 18. The intermediate groove portion 19 is configured to communicate with each other. In the present embodiment, two sets of the first locking groove portion 15, the second locking groove portion 16, the first communication groove portion 17, the second communication groove portion 18, and the intermediate groove portion 19 are formed in the circumferential direction. Yes.

Further, between the second communication groove 18 and the intermediate groove 19, between the intermediate groove 19 and the first locking groove 15, between the first locking groove 15 and the first communication groove 17, and Between the first communication groove 17 and the second locking groove 16, first to fourth step portions 111 to 114 for rotating the push rod 1 in one direction are formed. That is, the bottom surface of the cam groove 10 includes the bottom surface 15 a of the first locking groove portion 15, the bottom surface 16 a of the second locking groove portion 16, the bottom surface 17 a of the first communication groove portion 17, and the bottom surface 18 a of the second communication groove portion 18. The bottom surface 19a of the intermediate groove portion 19 is formed as a step surface formed in a step shape via the first to fourth step portions 111 to 114, respectively.

More specifically, the second communication groove portion 18 is formed deeper than the smooth surface where the cam groove 10 is not formed on the outer peripheral surface 11a of the shaft portion 11 of the push rod 1, and the intermediate groove portion 19 is the first step. The first communication groove portion 18 is formed deeper than the second communication groove portion 18 via the portion 111, the first locking groove portion 15 is formed deeper than the intermediate groove portion 19 via the second step portion 112, and the first communication groove portion 17 is The second locking groove portion 16 is formed deeper than the first communication groove portion 17 via the fourth step portion 114, and is formed deeper than the first locking groove portion 15 via the third step portion 113. ing.

The first locking groove portion 15 and the second locking groove portion 16 are provided with a first locking wall surface 15 b and a second locking wall surface 16 b that lock the sliding contact pin 51 a of the sliding contact portion 51 in the plate member 5. Have. The second communication groove 18 is formed in a slope shape in which the depth of the groove gradually decreases in the direction from the second locking groove 16 to the intermediate groove 19.

Next, the operation of the cam groove 10 and the sliding contact pin 51a of the plate member 5 as the push rod 1 moves back and forth will be described with reference to FIGS. 6 and 7A to 7C. 7A to 7C are perspective views showing the push rod 1, the plate member 5, the motor 6, and the regulating member 7 in each operation stage of the lid opening / closing device 100. FIG.

In the operation of the lid opening / closing device 100, the push rod 1 actually moves relative to the sliding contact pin 51a of the plate member 5, but in FIG. 6, the sliding contact pin 51a of the plate member 5 is shown for convenience of explanation. It demonstrates as what moves relatively with respect to the push rod 1. FIG.

When the push rod 1 is in the pushing position A, the sliding contact pin 51 a of the sliding contact portion 51 in the plate member 5 locks the first locking groove portion 15. In this state, the slidable contact pin 51a of the plate member 5 abuts on the first locking wall surface 15b of the first locking groove 15 and is pressed toward the protruding position B in the axial direction by the biasing force of the coil spring 3. Thus, the push rod 1 is held at the pushing position A. This state corresponds to the closed state of the lid 92 (shown in FIG. 1).

When the push rod 1 is pushed toward the pushing position A in response to the pushing operation on the lid 92, the state where the first locking groove 15 is locked to the sliding contact pin 51a is released accordingly. At the same time, the sliding contact pin 51 a slides on the bottom surface 15 a of the first locking groove portion 15 and moves to the first communication groove portion 17 via the third step portion 113.

Note that the formation of the third step portion 113 prevents the sliding contact pin 51a that has moved to the first communication groove portion 17 from returning to the first locking groove portion 15 again. That is, the third step portion 113 has a function of guiding the sliding contact pin 51a so as to move in the cam groove 10 only in one direction. The same applies to the first step portion 111, the second step portion 112, and the fourth step portion 114 described below.

Thereafter, the sliding contact pin 51 a slides on the bottom surface 17 a of the first communication groove portion 17 by the urging force of the coil spring 3, and moves to the second locking groove portion 16 via the fourth step portion 114. Thereby, the push rod 1 rotates by a predetermined angle (90 ° in the present embodiment) in one direction along with the axial movement from the pushing position A to the protruding position B.

The sliding contact pin 51a that has moved to the second locking groove portion 16 comes into contact with the second locking wall surface 16b of the second locking groove portion 16 and stops in a state where it is pressed toward the protruding position B in the axial direction. Thereby, the 2nd latching groove part 16 will be latched by the sliding contact pin 51a, and the push rod 1 will be in the state hold | maintained at the protrusion position B (refer FIG. 7A). This state corresponds to the open state of the lid 92.

When the push rod 1 is pushed toward the pushing position A in response to the pushing operation on the lid 92 again, the state where the second locking groove portion 16 is locked to the sliding contact pin 51a is released accordingly. At the same time, the sliding contact pin 51 a slides on the bottom surface 18 a of the second communication groove portion 18 and moves to the intermediate groove portion 19 via the first step portion 111. As a result, the push rod 1 further rotates by a predetermined angle (90 ° in the present embodiment) in one direction.

As the pushing operation on the lid 92 is released, the sliding contact pin 51a is moved to the first locking groove 15 via the second step 112 by the biasing force of the coil spring 3, and the first locking It stops in a state where it is pressed against the wall surface 15b. Thereby, the 1st latching groove part 15 will be latched by the sliding contact pin 51a, and the push rod 1 will be in the state hold | maintained at the pushing position A (refer FIG. 7B).

Thus, the cam groove 10 has a plurality of groove portions having different depths, and the sliding contact pin 51a of the sliding contact portion 51 in the plate member 5 is inserted into the cam groove via the first to fourth step portions 111 to 114. By moving in 10 in one direction, the rotary motion accompanying the forward / backward movement between the push-in position A and the protruding position B of the push rod 1 becomes possible.

When the push rod 1 is held at the push-in position A and a locking operation is performed by, for example, a door lock device (not shown), the motor 6 is driven in conjunction with this. As the motor 6 is driven, the output shaft 60 rotates and the rotating portion 70 of the regulating member 7 also rotates. Thereby, as shown in FIG. 7C, the extending piece 711 of the locking portion 71 is fitted into the locking hole 11 b of the shaft portion 11 in the push rod 1. Thereby, the axial movement to the protrusion position B side of the push rod 1 is controlled. When the unlocking operation is performed by the door lock device, the output shaft 60 is rotated in reverse by the driving of the motor 6 and the rotating portion 70 is also rotated in reverse. It is detached from the blind hole 11b. Thereby, the restriction | limiting of the axial direction movement of the push rod 1 is cancelled | released.

(Operation and effect of the embodiment)
According to the embodiment described above, the following operations and effects can be obtained.

(1) The lid opening / closing device 100 is configured so that the slide rod 51a of the plate member 5 which is a single component is slidably contacted with the cam groove 10 formed on the outer peripheral surface 11a of the shaft portion 11 of the push rod 1. Since it is rotated with the movement in the axial direction, the configuration is simplified as compared with the case where the push rod is moved forward and backward by a cam mechanism including a cam follower and a cam projection, for example, as in the lid opening / closing device described in Patent Document 1. As a result, the operability can be improved.

(2) The sliding contact pin 51a of the plate member 5 is elastically pressed inward in the radial direction of the push rod 1 toward the bottom surface of the cam groove 10, and the push rod 1 is placed in one direction on the bottom surface of the cam groove 10. Since the first to fourth step portions 111 to 114 to be rotated are formed, the sliding contact pin 51a of the plate member 5 can be slid on the cam groove 10 more reliably. That is, the operability of the lid opening / closing device 100 can be improved.

(3) When assembling the push rod 1 to the case 2, the push rod 1 is first disposed on the upper portion of the case 2, and then the push rod 1 is placed at its base end (on the side opposite to the locking portion 12 in the axial direction). Since it is only necessary to insert into the insertion hole 22a in the support portion 22 of the case 2 from the (end portion) side, the size of the locking portion 12 of the push rod 1 can be set larger than the outer diameter of the shaft portion 11 in the push rod 1 (L > D). That is, for example, when the push rod is first disposed in the case as in the lid opening / closing device described in Patent Document 1, and then inserted into the insertion hole in the support portion of the case from the distal end portion of the push rod, the push rod is engaged. Although the size of the stop portion cannot be set larger than the outer diameter of the shaft portion of the push rod, in this embodiment, the locking portion can be provided without such restriction. Thereby, the push rod 1 can be more reliably locked to the lid 92 when the lid 92 is closed.

(4) The regulating member 7 has a rotating portion 70 and a locking portion 71 that rotate integrally with the output shaft 60 of the motor 6, and pushes the push rod 1 in the pushing position A along with the rotational movement of the output shaft 60 of the motor 6. Since the movement in the axial direction is restricted in this case, for example, as described in Patent Document 1, a locking member disposed between the motor and the push rod is not required, so that space saving in the case can be achieved. That is, it is possible to reduce the size of the lid opening / closing device.

As mentioned above, although this invention was demonstrated based on embodiment, embodiment described above does not limit the invention which concerns on a claim. In this embodiment, two sets of the first locking groove portion 15, the second locking groove portion 16, the first communication groove portion 17, the second communication groove portion 18, and the intermediate groove portion 19 are formed. For example, one set may be used.

In addition, it should be noted that not all combinations of features described in the embodiments are necessarily essential to the means for solving the problems of the invention. Further, the present invention can be appropriately modified and implemented without departing from the spirit of the present invention.

The present invention can be applied to a lid opening / closing device that switches between locking and non-locking of a lid (lid) that covers an opening formed in a vehicle.

DESCRIPTION OF SYMBOLS 1 Push rod 2 Case 3 Coil spring 6 Motor 7 Control member 10 Cam groove 11a Outer peripheral surface 11b Locking hole 15 1st locking groove part 16 2nd locking groove part 17 1st communication groove part 18 2nd communication groove part 19 Intermediate groove 51a Sliding pin 60 Output shaft 70 Rotating portion 71 Locking portion 90 Car body 90a Opening portion 92 Lid 100 Lid opening / closing device 111 to 114 First to fourth step portions

Claims

A lid opening and closing device capable of switching between an open state and a closed state of a lid by a pushing operation to a lid attached to the opening of the vehicle body so as to be openable and closable,
Push that is formed in an axial shape and moves forward and backward in the axial direction between a pushed-in position pushed in with the closing operation of the lid and a protruding position protruding in the axial direction from the pushed-in position in accordance with the opening operation of the lid The rod,
A case for supporting the push rod in an axially movable manner;
A biasing member that biases the push rod from the pushing position to the protruding position;
A sliding contact pin that is supported by the case so as not to move axially and circumferentially with respect to the push rod, and is in sliding contact with a cam groove formed on the outer peripheral surface of the push rod;
The cam groove is inclined in the axial direction with the first locking groove portion and the second locking groove portion locked to the sliding contact pin at different positions in the axial direction and the circumferential direction of the push rod. A first communication groove portion and a second communication groove portion communicating the one locking groove portion and the second locking groove portion;
When the push rod moves from the pushing position to the protruding position by the urging force of the urging member in response to the pushing operation at the pushing position, the first locking groove portion is formed on the sliding contact pin. The locked state is released, and the sliding contact pin slides with the first communication groove, whereby the push rod rotates in one direction, and the second locking groove is in the sliding contact. Locked to the pin,
When the push rod moves from the protruding position to the pushing position against the urging force of the urging member in response to the pushing operation at the protruding position, the second engagement is applied to the sliding contact pin. The state where the stop groove portion is locked is released, and the sliding contact pin slides with the second communication groove portion, so that the push rod further rotates in the one direction, and the first locking portion A lid opening / closing device in which a groove is locked to the sliding contact pin.
The sliding contact pin is elastically pressed radially inward of the push rod toward the bottom surface of the cam groove,
Between the first engagement groove and the first communication groove, between the first communication groove and the second engagement groove, and between the second communication groove and the first engagement. The lid opening / closing device according to claim 1, wherein stepped portions for rotating the push rod in the one direction are formed between the groove portions.
A motor having an output shaft; and a restricting member for restricting axial movement of the push rod at the pushing position;
The restricting member is externally fitted to the output shaft and rotates integrally therewith, and is protruded from the outer peripheral surface of the rotary portion, and is provided on a part of the push rod on the outer peripheral surface in the axial direction. A locking portion that locks to the locking portion,
The movement of the push rod in the axial direction is restricted by the locking portion of the restricting member being locked to the locked portion of the push rod as the output shaft of the motor rotates. Item 3. The lid opening / closing device according to Item 1 or 2.