JP7425928B2 - Advance/retreat movement device - Google Patents

Description

The present invention relates to an advancing/retracting moving device.

For devices in which the rod member moves relative to the case, such as a device that locks the lid that covers the fuel filler port of a vehicle, there are two positions: one in which the rod member moves forward so as to protrude from the case, and the other in a position in which it retreats so that it is accommodated in the case. (For example, see Patent Document 1).

The device of Patent Document 1 includes a case, a push rod (rod member) that moves between an advanced position and a retreated position with respect to the case, a biasing member that biases the push rod in a protruding direction, and a push rod (rod member) that biases the push rod in a protruding direction. It includes a locking portion (locking member) that locks the push rod when the rod is held in the retracted position.

In Patent Document 1, the push rod moves in the forward direction when the lid is opened, and then is held at a predetermined forward holding position. Furthermore, the push rod is held at a predetermined backward holding position after moving in the backward direction when the lid is closed. Hereinafter, the process from the forward holding position to the backward holding position of the push rod will be described in more detail. When the push rod in the forward holding position is pressed in the backward direction when the lid is closed, the push rod reaches the backward holding position and then moves further in the backward direction past the backward holding position. Thereafter, the push rod returns to the forward direction by the biasing force of the biasing member, and is then held at the backward holding position. Further, in the process of being held at the forward holding position, the push rod moves in the backward direction from the backward holding position, and then moves in the forward direction by the urging force of the urging member and is held at the forward holding position.

Further, the device of Patent Document 1 includes a locking portion (locking member) for locking the push rod in the backward holding position. The locking part has an engaging member that engages with a pin-shaped slider of the push rod, and when the engaging member moves in a direction perpendicular to the axis of the push rod, the pin-shaped slider Engages with the slider. Specifically, when the push rod is in the retracted holding position, the locking member of the lock portion moves toward a pin-shaped slider provided on the outer periphery of the push rod. As a result, the engaging member engages with the pin-shaped slider in the forward and backward directions of the push rod, thereby locking the push rod. On the other hand, when the push rod is in the forward holding position, even if the locking member of the locking part moves toward the push rod, the engaging member comes into contact with the end surface of the pin-shaped slider, causing the engaging member to move. is prevented. As a result, when the push rod is in the forward holding position, the engaging member does not move to the lock position, thereby preventing the push rod from being erroneously locked.

Japanese Patent Application Publication No. 2014-173422

In the case of a device like Patent Document 1, even if the locking member is moved to the locking position when the advancing/retracting member is in the forward holding position, such as when the lid is open, the locking member will not be locked. Do not move into position. Therefore, after moving the advancing/retracting member from the forward holding position to the backward holding position, it is necessary to move the locking member to the locking position again. Therefore, the locking operation of the advancing/retracting member becomes complicated. Further, if the user forgets to perform a locking operation while the reciprocating member has moved to the retracting holding position, the retracting member will be in an unlocked state (for example, the lid will be in an openable state).

Therefore, the present invention allows the lock member to be moved to the lock position regardless of the axial position of the retractable member, and even when the lock member is located at the lock position, the retractable member can be moved to the retracted holding position. To provide a forward/backward moving device which can be easily locked at a backward holding position.

The forward/backward moving device of the present invention includes a case, and a forward/backward moving device that is movable relative to the case while rotating around an axis in a forward direction protruding from the case and a backward direction opposite to the forward direction. a member, a biasing member that urges the advancing/retracting member in the forward direction, and holding the advancing/retracting member in a forward holding position moved in the forward direction and a backward holding position moved in the backward direction. a cam mechanism configured, a lock position that restricts movement of the reciprocating member to the forward holding position when the reciprocating member is located at the retracting holding position, and movement of the retracting member to the forward holding position. a locking member that is movable between an unlocked position that permits The lock member is configured to pass through a folded position on the backward direction side, a contact portion is provided on the backward direction side of the advancing/retreating member, an abutted portion is provided on the forward direction side of the locking member, and the locking member is locked. position, and when the advancing/retracting member reaches the folding position from the forward holding position, the abutting portion of the advancing/retracting member is aligned in the axial direction with respect to the abutted portion of the locking member. When the reciprocating member is rotated around the axis from the folded-back position and held at the retracting holding position, the abutting portion of the retracting member is in contact with the abutted portion of the locking member. between the abutting part and the abutted part when the reciprocating member is held at the retracting holding position; The interval in the axial direction is set to a distance that prevents the advancing/retracting member from reaching the folding position from the retreating holding position.

According to the advancing/retracting moving device of the present invention, the locking member can be moved to the locking position regardless of the axial position of the advancing/retracting member, and even when the locking member is located at the locking position, the advancing/retracting member is held backward. position and can be easily locked in the retracted holding position.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a forward/backward moving device according to an embodiment of the present invention. FIG. 3 is a schematic diagram showing the relationship between the locking portion of the forward/backward moving member of the forward/backward movement device and the locked portion on the operation target side of the fuel lid. FIG. 2 is a schematic perspective view showing an example in which the advancing/retreating device of the present embodiment is applied to a lid opening/closing device. FIG. 2 is a perspective view of the advancing/retracting moving device with a portion of the case cut away, with the advancing/retracting member located in the forward holding position and the locking member located in the unlocked position. FIG. 2 is a perspective view of the advancing/retracting moving device with a portion of the case cut away, with the advancing/retracting member located in the retreating holding position and the locking member being located in the unlocked position. FIG. 6 is a perspective view of the reciprocating device, with a portion of the case cut away, in which the reciprocating member moves in the backward direction from the state shown in FIG. 5 and is located in the folded position, and the locking member is located in the unlocked position. FIG. 3 is a perspective view of the advancing/retracting moving device with a part of the case cut away, with the advancing/retracting member located in the forward holding position and the locking member located in the locking position. FIG. 3 is a perspective view of the advancing/retracting moving device with a portion of the case cut away, with the advancing/retracting member located in the retreating holding position and the locking member being located in the locking position. FIG. 9 is a perspective view showing a state in which the reciprocating member moves in the backward direction from the state shown in FIG. 8 and the abutting portion of the reciprocating member abuts the abutted portion of the locking member. FIG. 3 is a view of the advancing/retracting moving device viewed from the bottom of the case in the forward direction. FIG. 3 is a perspective view of a reciprocating member. FIG. 3 is a bottom view of the reciprocating member. FIG. 6 is a schematic diagram of the reciprocating member and the cam mechanism developed on a plane when the retracting member is located at the forward holding position and the locking member is located at the unlocked position. FIG. 14 is a schematic diagram showing a state in which the advancing/retracting member is moving in the backward direction from the state shown in FIG. 13 and moving toward the folding position. FIG. 15 is a schematic diagram showing a state in which the reciprocating member moves in the forward direction from the state shown in FIG. 14 and reaches the retracting holding position. FIG. 16 is a schematic diagram showing a process in which the reciprocating member moves in the backward direction from the state shown in FIG. 15 and moves toward the forward holding position via the folding position. FIG. 3 is a schematic diagram of the advancing/retracting member and the cam mechanism developed on a plane, showing a state in which the advancing/retracting member has moved toward the backward direction from the forward holding position with the locking member located at the locking position. FIG. 18 is a schematic diagram showing a process in which the advancing/retracting member moves from the folding position toward the retreating holding position from the state shown in FIG. 17 . FIG. 19 is a schematic diagram showing a state in which the reciprocating member has been moved from the state shown in FIG. 18 and is held at the retracted holding position.

EMBODIMENT OF THE INVENTION Hereinafter, with reference to drawings, the advancing and retreating movement apparatus of one Embodiment of this invention is demonstrated. In addition, the embodiment shown below is an example to the last, and the advancing/retreating movement apparatus of this invention is not limited to the following embodiment. In addition, in this specification, "perpendicular to A" and similar expressions do not refer only to a direction completely perpendicular to A, but also include a direction substantially perpendicular to A. do. Furthermore, in this specification, "parallel to B" and similar expressions do not refer only to a direction completely parallel to B, but also include a direction substantially parallel to B. do. Furthermore, in this specification, "C-shape" and similar expressions do not refer only to a complete C-shape, but also include a shape that visually reminds one of a C-shape (approximately a C-shape).

As shown in FIG. 1, the advancing/retreating device 1 has a case 2, an axis extending relative to the case 2 in a forward direction D1 protruding from the case 2, and a backward direction D2 opposite to the forward direction D1. It is provided with an advancing/retracting member 3 which is movable while rotating around X. Note that both the forward direction D1 and the backward direction D2 are collectively referred to as the axis X direction. In this specification, the axis X means a forward/backward axis that is an axis along the direction in which the forward/backward moving member 3 advances and retreats (advances and retreats). In this embodiment, the axis X corresponds to the longitudinal axis of the advancing/retracting member 3, which is a shaft-like member elongated in the advancing/retracting direction.

The advancing/retracting moving device 1 interacts with a predetermined operation target when the advancing/retracting member 3 advances or retreats with respect to the case 2 . Note that the interaction between the advancing/retracting member 3 and the operating target may be such that the advancing/retracting member 3 acts on the operating target, or the operating target may act on the advancing/retracting member 3. In this embodiment, the advancing/retracting member 3 is operated by operating the lid L (see FIGS. 2 and 3), which is the operation target. However, the interaction between the advancing/retracting member 3 and the operation target is not particularly limited, and other effects may be used, such as operating the operation target by the advancing/retracting member 3 pressing the operation target.

The use of the advancing/retracting moving device 1 is not particularly limited as long as it can interact with a predetermined operation target when the advancing/retracting member 3 advances or retreats with respect to the case 2. In this embodiment, as shown in FIG. 3, the advancing/retracting moving device 1 includes a advancing/retracting moving device 1, a base B to which the advancing/retracting moving device 1 is attached, and a base B having an opening Ba, and opening/closing of the opening Ba of the base B. This is applicable to a lid opening/closing device D that includes a lid L that can be engaged with the end (locking portion 31) of the advancing/retracting member 3 in the forward direction D1. More specifically, the lid L is a lid for fuel or power supply of a vehicle, and the advancing/retreating device 1 is applied to a lid opening/closing device D of a vehicle, and the lid L is a lid for fuel or power supply of a vehicle to be operated. is configured to open and close. Note that the fuel for the vehicle is not limited to diesel oil or gasoline, but refers to all fuels that can operate the vehicle.

In this embodiment, as shown in FIG. 3, the lid opening/closing device D is a lid (hereinafter referred to as a fuel lid) that is provided on a vehicle body (hereinafter referred to as a vehicle body B) as a base so as to be openable and closable via a hinge H. The fuel lid L is provided with a forward/backward movement device 1 which is attached to the vehicle body B and which locks and unlocks the fuel lid L by moving the forward/backward member 3 back and forth. The fuel lid L has an operation target-side locked portion La to which a locking portion 31 provided at the tip of the reciprocating member 3 is locked. In this embodiment, the locking part 31 is a rectangular plate-shaped locking piece, and the operation target side locked part La is a locking hole having a rectangular opening in which the locking part 31 can lock. . As shown by the dashed line in FIG. 2, when the locking part 31 is in a position where it can be removed from the opening of the operation target side locked part La, the locking part 31 and the operation target side locked part La are connected. It becomes possible to release the lock between. On the other hand, when the locking part 31 rotates from the state shown by the dashed line in FIG. The operation target side locked portion La is locked.

Although details will be described later, in this embodiment, when the fuel lid L is pressed and the forward/backward movement device 1 is operated from the closed state, the locking portion 31 and the operation target side locked portion La are connected. The lock between is released and the fuel lid L is opened. The fuel lid L may be opened by being biased by a spring in the direction in which the fuel lid L is opened when the lock between the locking portion 31 and the operation target side locking portion La is released. Alternatively, the fuel lid L may be pushed in the opening direction by the reciprocating member 3 and opened slightly, and then manually opened. When closing the fuel lid L from the open state shown in FIG. 3, the fuel lid L is manually moved in the closing direction. As a result, the reciprocating member 3 is pressed by the fuel lid L, and the retracting member 3 is moved backward. At this time, the locking part 31 rotates from the state shown by the dashed line in FIG. 2 to the state shown by the solid line, and is locked to the locked part La on the operation target side, so that the fuel lid L is maintained in a closed state. .

Next, details of the advance/retreat moving device 1 will be explained.

As shown in FIGS. 4 to 9, the advancing/retracting moving device 1 includes a biasing member 4 that urges the advancing/retracting member 3 in the forward direction D1, and a forward holding position (see FIG. 4 and FIG. 7) and the backward holding position (see FIG. 5 and FIG. 8) moved in the backward direction D2, and when the retractable member 3 is located at the backward holding position There are a lock position (see FIGS. 7 to 9) that restricts the movement of the reciprocating member 3 to the forward holding position, and an unlock position (see FIGS. 4 to 6) that allows the reciprocating member 3 to move to the forward holding position. ) and a locking member 5 that is movable between. Note that in FIGS. 4 to 9, the case 2 is partially removed in order to make the inside of the case 2 easier to see.

The case 2 accommodates the components of the forward/backward movement device 1 therein. In this embodiment, the case 2 accommodates a part of the reciprocating member 3, the biasing member 4, the cam mechanism C, and the locking member 5, as shown in FIGS. 4 and 10. Note that the case 2 only needs to accommodate at least a portion of each component of the forward/backward moving device 1, and does not necessarily need to accommodate the entirety of each component. The shape and structure of the case 2 are not particularly limited as long as the components of the forward/backward moving device 1 can be accommodated therein. Further, the case 2 may be configured from one member or may be configured from a plurality of parts.

In this embodiment, the case 2 has a reciprocating member accommodating portion 21 that accommodates the reciprocating member 3 and a locking member accommodating portion 22 that accommodates the locking member 5, as shown in FIGS. 4 and 10. The advancing/retracting member accommodating portion 21 has a housing space in which the advancing/retracting member 3 is accommodated so as to be movable in the axis X direction. In this embodiment, as shown in FIG. 4, the reciprocating member accommodating portion 21 is formed of a cylindrical body having an internal space. More specifically, the reciprocating member accommodating portion 21 is constituted by a cylindrical body having a second cam surface Cb and a guide portion Cc, which will be described later. The locking member accommodating portion 22 accommodates the locking member 5 so that the locking member 5 can be moved between a locked position and an unlocked position. In this embodiment, the lock member accommodating portion 22 accommodates the lock body 51 of the lock member 5, the motor 521, and the screw shaft 522 of the drive unit 52.

In addition, in this embodiment, as shown in FIG. 4, the case 2 protrudes from a bottom surface 2a facing the end of the advancing/retracting member 3 on the retreating direction D2 side in the axis X direction, and has a first cam surface Ca to be described later. It has a protrusion 23 having a shape. The protruding portion 23 is provided at a position facing the reciprocating member accommodating portion 21 in the axis X direction. A plurality of protrusions 23 (four in this embodiment) are provided spaced apart in the direction around the axis X. Further, in this embodiment, the case 2 has a support shaft 24 that protrudes from the bottom surface 2a in the forward direction D1 and supports the biasing member 4. The support shaft 24 extends coaxially with the axis X of the reciprocating member 3.

The advancing/retracting member 3 is a member that moves forward/backward with respect to the case 2 in the axis X direction. In this embodiment, the advancing/retracting member 3 is moved by the cam mechanism C in the forward direction D1 and held at the forward holding position (see FIGS. 4 and 7), and is moved in the backward direction D2 from the forward holding position. It is held in the retracted holding position (see FIGS. 5 and 8). As shown in FIGS. 4 to 6 and 13 to 16, when moving between the forward holding position and the backward holding position, the advancing/retracting member 3 moves further toward the backward direction D2 side with respect to the backward holding position. (See the two-dot chain line in FIGS. 6 and 14 and the two-dot chain line in FIG. 16). The advancing/retracting member 3 moves while rotating around the axis X by the cam mechanism C when advancing and retreating in the axis X direction. Specifically, the advancing/retracting member 3 is configured to rotate around the axis X by the cam mechanism C when moving between the retreating holding position and the folding position.

In this specification, the "advance holding position" is a predetermined position of the reciprocating member 3 where the reciprocating member 3 moves in the forward direction D1 relative to the retracting holding position and is held (see FIGS. 4 and 7). In the present embodiment, the forward holding position is the position of the reciprocating member 3 when the fuel lid L is open, and is the position where the retracting member 3 protrudes most from the case 2 in the forward direction D1. The "backward holding position" is a predetermined position of the moving member 3 where the moving member 3 is moved in the backward direction D2 relative to the forward holding position and held (see FIGS. 5 and 8). In this embodiment, the retraction holding position is the position of the reciprocating member 3 when the fuel lid L is in the closed state. In this embodiment, the backward holding position is a position slightly on the forward direction D1 side with respect to the turning position. In addition, in this embodiment, the backward holding position of the reciprocating member 3 is a position shifted by 90 degrees in the direction around the axis X with respect to the forward holding position. The "turning position" is a position further on the backward direction D2 side with respect to the backward holding position (see FIG. 6). In this embodiment, the folding position is determined when the cam mechanism C moves the advancing/retracting member 3 from the forward holding position to the backward holding position, or when moving the advancing/retracting member 3 from the backward holding position to the forward holding position. This is the position in the axis X direction at which the advance/retreat member 3 switches its advancing direction from the backward direction D2 to the forward direction D1. Note that the position in the axis X direction of the turn-back position (first turn-back position, see the two-dot chain line in FIG. 14) for switching the direction of movement when the forward-backward member 3 moves from the forward holding position to the backward hold position, and the position of the forward-backward member 3 in the axis X direction 3 may be different from the position in the axis X direction of the turning position (second turning position, see the two-dot chain line in FIG. 16) where the traveling direction is switched when moving from the backward holding position to the forward holding position.

As described above, the reciprocating member 3 interacts with a predetermined operation target when moving back and forth in the axis X direction. In this embodiment, when the reciprocating member 3 moves to the forward holding position, the engagement state with the fuel lid L is released and the fuel lid L is opened, and when the advancing/retracting member 3 moves to the backward holding position, it engages with the fuel lid L. , the fuel lid L is closed. In this embodiment, as shown in FIG. 4, the advancing/retracting member 3 is biased in the forward direction D1 by a biasing member 4 such as a coil spring so as to move from the backward holding position to the forward holding position. It is configured. Conversely, the advancing/retracting member 3 is moved from the forward holding position to the backward holding position by being pressed against the urging force of the urging member 4 in the forward direction D1.

In this embodiment, as shown in FIG. 11, the reciprocating member 3 includes a main body 32 extending along the axis X direction, and a locking part 31 provided at one end (tip) side of the main body 32 in the axis X direction. It is equipped with Further, the advancing/retracting member 3 has a convex portion 3a and a recessed portion 3b, which will be described later, on the other end side (the end side on the retreating direction D2 side) of the advancing/retracting member 3 (main body 32). Further, the reciprocating member 3 has a guided portion Cd on the outer peripheral side surface around the axis X of the reciprocating member 3.

In this embodiment, the main body 32 is a cylindrical or columnar member extending in the axis X direction, as shown in FIG. More specifically, the main body 32 is formed in a cylindrical shape, and is guided into the cylindrical reciprocating member housing portion 21, as shown in FIGS. 4 to 9. Further, as shown in FIGS. 11 and 12, the main body 32 has a biasing member accommodating portion 321 inside the main body 32, and a portion of the biasing member 4 is accommodated in the biasing member accommodating portion 321. Ru.

The locking portion 31 is provided on one end side (advance direction D1 side) of the main body 32, and locks with an operation object such as the fuel lid L. In this embodiment, the locking portion 31 locks with the operation target side locked portion La, as shown in FIG. The locking portion 31 is configured to be in a locked state (see the solid line in FIG. 2) in which it is locked with the operation target side locked portion La and in a locked state when the advancing/retracting member 3 is rotated in the direction around the axis X by the cam mechanism C. is released (see the dashed line in FIG. 2). In this embodiment, the locking portion 31 is a substantially rectangular plate-shaped member provided at the end of the main body 32 on the forward direction D1 side on the outside of the case 2. Note that the shape and structure of the locking portion 31 and the operation target side locked portion La are such that the locking portion 31 can be in a locked state and a locked state with respect to the operation target side locked portion La. , there is no particular limitation as long as the fuel lid L can be opened and closed.

The cam mechanism C moves the advancing/retracting member 3 between a forward holding position, a folding position, and a backward holding position, and holds the advancing/retracting member 3 at the forward holding position and the backward holding position. The cam mechanism C moves the advancing/retracting member 3 so that, when moving the advancing/retracting member 3 between the forward holding position and the backward holding position, the advancing/retracting member 3 passes through a folded position that is further on the backward direction D2 side with respect to the backward holding position. Guide to 3. More specifically, as shown in FIGS. 13 to 15, when moving the advancing/retracting member 3 from the forward holding position to the backward holding position, the cam mechanism C is configured such that when the advancing/retracting member 3 reaches the turning position, Later, the advancing/retracting member 3 is moved from the folding position to the retreating holding position and held there by the biasing member 4. In addition, as shown in FIGS. 15 and 16, the cam mechanism C is configured such that when moving the forward/backward member 3 from the backward holding position to the forward holding position, the forward/backward member 3 reaches the folding position from the backward holding position. Later, the advancing/retracting member 3 is moved from the folded back position to the forward holding position and held by the urging member 4. 13 to 19 are schematic diagrams in which the reciprocating member 3 and the cam mechanism C are developed on a plane for easy understanding, and the vertical direction in FIGS. 13 to 19 is the axis The direction is the forward direction D1, the downward direction is the backward direction D2), and the left direction is one direction D3 around the axis X.

The cam mechanism C moves the retractable member 3 around the axis X when the retractable member 3 moves from the forward holding position to the backward holding position and when the retractable member 3 moves from the backward holding position to the forward holding position Rotate. More specifically, when moving from the forward holding position to the backward holding position, the advancing/retracting member 3 is rotated by the cam mechanism C in one direction D3 (see FIG. 4) around the axis X, and from the backward holding position. When moving to the forward holding position, the cam mechanism C rotates around the axis X in one direction D3 (same direction). From a state in which the reciprocating member 3 is held in the forward holding position to a state in which it is held in the backward holding position, or a state in which the reciprocating member 3 is held in the forward holding position from a state in which it is held in the backward holding position. The angle at which the reciprocating member 3 rotates until this point is reached is not particularly limited. In this embodiment, the advancing/retracting member 3 is configured to rotate approximately 90 degrees from a state in which the advancing/retracting member 3 is held in the backward holding position to a state in which it is held in the forward holding position. Similarly, the reciprocating member 3 is configured to rotate approximately 90 degrees from the state in which the reciprocating member 3 is held in the forward holding position to the state in which it is held in the backward holding position.

The structure of the cam mechanism C is particularly limited as long as the advancing/retracting member 3 can be moved between the forward holding position, the folded back position, and the backward holding position, and the advancing/retracting member 3 can be held in the forward holding position and the backward holding position. Not done. In this embodiment, the cam mechanism C includes a first cam surface Ca provided on the case 2, a second cam surface Cb provided on the case 2, and a second cam surface Cb provided on the case 2, as shown in FIGS. A guide portion Cc is provided and extends along the axis X direction of the reciprocating member 3, and a first contact surface Cd1 and a second cam surface Cb provided on the outer periphery of the reciprocating member 3 are in contact with the first cam surface Ca. It has a second contact surface Cd2 and a guided portion Cd that can be guided by the guide portion Cc. In addition, in this specification, when a certain member/part is said to be "provided in the case 2", the certain member/part may be provided integrally with another part of the case 2, or may be provided integrally with another part of the case 2. This means that it may be provided as a separate body. When a certain member/part is provided separately from another part of the case 2, it may be fixed to another part of the case 2 or fixed to another part of the case 2, as long as the purpose of the invention can be achieved. It may be relatively movable.

As shown in FIGS. 14 and 16, the first cam surface Ca comes into contact with the first contact surface Cd1 of the guided portion Cd when the reciprocating member 3 moves in the retraction direction D2 and moves to the return position. , is inclined so as to rotate the advancing/retracting member 3 in one direction D3 around the axis X. The first cam surface Ca is configured such that when the advancing/retracting member 3 attempts to further move (being pressed) in the retreating direction D2 while in contact with the first contact surface Cd1, the advancing/retracting member 3 moves in one direction around the axis X. It is inclined so that a rotating force is generated on D3. The inclination angle of the first cam surface Ca is such that when the advancing/retracting member 3 attempts to further move (being pressed) in the retreating direction D2 with the first cam surface Ca and the first contact surface Cd1 in contact with each other, The angle of inclination is not particularly limited as long as it generates a force that causes the member 3 to rotate in one direction D3 around the axis X.

The first cam surface Ca is provided on the case 2 in this embodiment. More specifically, the first cam surface Ca is constituted by the end (upper end) of the protrusion 23 protruding from the bottom surface 2a of the case 2 on the forward direction D1 side, as shown in FIG. In this embodiment, four protrusions 23 are provided on the bottom surface 2a of the case 2 at equal intervals in the direction around the axis X, and each of the four protrusions 23 is provided with a first cam surface Ca. In addition, in this embodiment, one of the first cam surfaces Ca is formed in the direction around the axis It is located at a position corresponding to the position in . In addition, in this embodiment, the other one of the first cam surfaces Ca is an axis It is provided at a position corresponding to the position in the circumferential direction. Therefore, when the reciprocating member 3 moves from the forward holding position or the backward holding position in the backward direction D2, the first cam surface Ca and the first contact surface Cd1 of the guided portion Cd can be brought into reliable contact.

As shown in FIGS. 14 and 15, the second cam surface Cb is configured such that when the advancing/retracting member 3 is held at the backward holding position from the forward holding position via the turning position, the second cam surface Cb moves forward from the turning position. It is inclined so that when it moves in the direction D1, it comes into contact with the second contact surface Cd2 of the guided portion Cd and rotates the reciprocating member 3 in the direction around the axis X in one direction D3. As shown in FIG. 15, the second cam surface Cb is in contact with the second contact surface Cd2 when the advancing/retracting member 3 attempts to further move in the forward direction D1 (by the urging force of the urging member 4). In addition, the reciprocating member 3 is inclined so as to generate a force that rotates it in one direction D3 around the axis X. The inclination angle of the second cam surface Cb is such that when the reciprocating member 3 attempts to further move in the forward direction D1 with the second cam surface Cb and the second contact surface Cd2 in contact with each other, the reciprocating member 3 moves along the axis X. There is no particular limitation on the angle of inclination as long as it produces a force that rotates in one direction D3 in the circumferential direction.

The second cam surface Cb is provided on the case 2 in this embodiment. More specifically, the second cam surface Cb is provided in the reciprocating member accommodating portion 21 of the case 2, as shown in FIGS. 4 to 9. In the present embodiment, the second cam surface Cb is constituted by an inclined surface (an inclined surface at the end on the backward direction D2 side) provided in the reciprocating member accommodating portion 21 formed of a cylindrical body. In this embodiment, as shown in FIG. 13, two second cam surfaces Cb are provided at the end of the advancing/retracting member accommodating portion 21 on the backward direction D2 side, spaced apart in the direction around the axis X. In the present embodiment, as shown in FIG. 13, one second cam surface Cb is an end ( 13) to the end of another adjacent first cam surface Ca (protrusion 23) on the one direction D3 side in the direction around the axis X. The second cam surface Cb is located at an end on the one direction D3 side in the direction around the axis X (the left end of the second cam surface Cb in FIG. It has a stop part ST (see FIG. 13) that stops the moving guided part Cd at a predetermined position (retracted holding position). The stop portion ST is constituted by a wall portion extending in the backward direction D2 with respect to the inclined surface of the second cam surface Cb. Further, the second cam surface Cb has an open end on the backward direction D2 side of the guide portion Cc at the end on the other direction side in the direction around the axis X (the right end of the second cam surface Cb in FIG. 13). It is connected to the department.

The guide portion Cc guides the guided portion Cd of the reciprocating member 3 in the axis X direction. The guide portion Cc extends in the axis X direction, and is used when the advancing/retracting member 3 moves from the forward holding position toward the backward direction D2 or when the advancing/retracting member 3 moves in the forward direction D1 toward the forward holding position. In addition, the guided portion Cd is guided in the direction of the axis X to assist the movable member 3 to move smoothly in the direction of the axis X.

The guide portion Cc is provided in the case 2 in this embodiment. More specifically, the guide portion Cc is provided in the reciprocating member accommodating portion 21 of the case 2. In this embodiment, the guide portion Cc is a guide groove cut out with a predetermined width in the axis It is made up of. The width of the guide portion Cc (width in the direction around the axis X), which is the interval between a pair of side edges extending in the axis It is larger than the width of the guided portion Cd in the circumferential direction. The end of the guide portion Cc on the forward direction D1 side has a stop portion ST2 (see FIG. 13) that can come into contact with the guided portion Cd, and the stop portion ST2 contacts the second contact surface Cd2 of the guided portion Cd. By doing so, the advancing/retracting member 3 is stopped and held at the forward holding position. The end of the guide portion Cc on the backward direction D2 side is open, and the guided portion Cd moves in the backward direction D2 from the inside of the guide portion Cc toward the first cam surface Ca, and from the backward direction D2 side of the guide portion Cc. It can move in the forward direction D1 toward the inside of the guide portion Cc.

In addition, the cam mechanism C guides the guided portion Cd to the guide portion Cc when the advancing/retracting member 3 moves from the backward holding position to the folding position to the forward holding position (see FIGS. 15 and 16). It has an introduction part Ce. The introducing portion Ce is in contact with the second contact surface Cd2 of the guided portion Cd, and when the advancing/retracting member 3 attempts to further move in the forward direction D1 (by the urging force of the urging member 4), the advancing/retracting member 3 is inclined so that a force that rotates in one direction D3 around the axis X is generated. The inclination angle of the introducing portion Ce is such that when the advancing/retracting member 3 attempts to further move in the forward direction D1 with the introducing portion Ce and the second contact surface Cd2 in contact with each other, the advancing/retracting member 3 moves on one side in the direction around the axis X. The angle of inclination is not particularly limited as long as it produces a force that rotates in the direction D3.

The introduction part Ce is provided in the case 2 in this embodiment. More specifically, the introduction part Ce is provided in the reciprocating member accommodating part 21 of the case 2. In this embodiment, as shown in FIG. 4, the introduction part Ce is constituted by an inclined surface (an inclined surface at the end on the backward direction D2 side) provided in the reciprocating member accommodating part 21 formed of a cylindrical body. has been done. In this embodiment, as shown in FIG. 13, two introducing portions Ce are provided at the end of the advancing/retracting member accommodating portion 21 on the backward direction D2 side, spaced apart from each other in the direction around the axis X. In this embodiment, the introduction part Ce is provided adjacent to the second cam surface Cb with the stop part ST in between in the direction around the axis X. Moreover, the introduction part Ce is provided between the guide part Cc and the second cam surface Cb in the direction around the axis X.

The guided portion Cd is provided on the reciprocating member 3. The guided portion Cd is guided by the first cam surface Ca, the second cam surface Cb, the guide portion Cc, etc., as shown in FIGS. position, move to the wrap position. In this embodiment, the guided portion Cd is provided on the outer periphery of the reciprocating member 3, as shown in FIGS. 11 and 12. More specifically, the guided portion Cd is provided to protrude from a side surface of the main body 32 of the reciprocating member 3 that extends in the direction around the axis X. The guided portion Cd has a first contact surface Cd1 that contacts the first cam surface Ca and a second contact surface Cd2 that contacts the second cam surface Cb. Further, the guided portion Cd has a pair of opposing side edges that are opposed to the pair of side edges of the guide portion Cc and extend in the axis X direction. The pair of opposing side edges can slide against the pair of side edges of the guide portion Cc when the guided portion Cd of the reciprocating member 3 is guided by the guide portion Cc.

The shape of the guided portion Cd is such that the guided portion Cd is guided by the first cam surface Ca, the second cam surface Cb, the guide portion Cc, etc., and the advancing/retracting member 3 moves to the forward holding position, the backward holding position, and the turning position. There is no particular limitation as long as it can be done. In this embodiment, the guided portion Cd is formed into an isosceles trapezoid shape, with one side in the direction around the axis X being the upper base and the other being the lower base, as shown in FIG.

The first contact surface Cd1 is a surface that comes into contact with the first cam surface Ca when the advancing/retreating member 3 moves in the backward direction D2. As shown in FIG. 14, with the first contact surface Cd1 in contact with the first cam surface Ca, the advancing/retracting member 3 further moves in the retreating direction D2, so that the advancing/retracting member 3 moves to one side in the direction around the axis Rotate in direction D3. The shape and structure of the first contact surface Cd1 is such that when the advancing/retracting member 3 further moves in the retreating direction D2 while in contact with the first cam surface Ca, the advancing/retracting member 3 is moved in one direction D3 around the axis X. There is no particular limitation as long as it can be rotated. In this embodiment, the first contact surface Cd1 is inclined in the same direction at an angle corresponding to the inclination angle of the first cam surface Ca.

The second contact surface Cd2 contacts the second cam surface Cb when the reciprocating member 3 moves from the folded position to the forward direction D1 when moving from the forward holding position to the backward holding position. Further, in the present embodiment, the second contact surface Cd2 contacts the introduction portion Ce when the reciprocating member 3 moves from the folded position to the forward direction D1 when moving from the backward holding position to the forward holding position. As shown in FIGS. 15 and 16, when the reciprocating member 3 further moves in the forward direction D1 while the second contact surface Cd2 is in contact with the second cam surface Cb or the introduction part Ce, the reciprocating member 3 is moved. It rotates in one direction D3 around the axis X. The shape and structure of the second contact surface Cd2 is such that when the advancing/retracting member 3 further moves in the forward direction D1 while in contact with the second cam surface Cb or the introduction part Ce, the advancing/retracting member 3 is moved to one side in the direction around the axis X. There is no particular limitation as long as it can be rotated in the direction D3. In this embodiment, the second contact surface Cd2 is inclined in the same direction at an angle corresponding to the inclination angle of the second cam surface Cb and the introduction part Ce.

When the locking member 5 is located at the locking position, the locking member 5 restricts movement of the reciprocating member 3 from the backward holding position to the forward holding position (see FIGS. 9 and 19). More specifically, the locking member 5 prevents the advancing/retracting member 3 from moving from the backward holding position to the forward holding position by restricting movement in the backward direction D2 from the backward holding position toward the folding position. regulate.

As described above, the locking member 5 moves between the locked position (see the position indicated by the solid line in FIG. 10) and the unlocked position (see the position indicated by the chain double-dashed line in FIG. 10). The locking position of the locking member 5 is a position where movement of the reciprocating member 3 to the forward holding position can be restricted when the retracting member 3 is located at the backward holding position. More specifically, the lock position is such that when the advancing/retracting member 3 attempts to move in the backward direction D2 from the retreating holding position toward the turning position, the advancing/retracting member 3 cannot reach the turning position from the retreating holding position. This is a position where movement of the advancing/retracting member 3 in the retreating direction D2 can be blocked (see FIG. 19). As shown in FIG. 4 and FIGS. 17 to 19, the lock member 5 has an abutted portion 5a provided on the forward direction D1 side of the lock member 5. The abutted portion 5a contacts a contact portion CT of the reciprocating member 3, which will be described later, and restricts movement of the retracting member 3 in the backward direction D2. In this embodiment, the lock member 5 in the lock position restricts the movement of the advancing/retracting member 3 in the backward direction D2, but does not restrict the movement of the advancing/retracting member 3 in the forward direction D1 and the rotation around the axis X. Not yet. The unlock position is a position where the locking member 5 is removed from the locus of movement of the advancing/retracting member 3 between the forward holding position and the backward holding position, allowing the advancing/retracting member 3 to move to the forward holding position. .

In this embodiment, as shown in FIG. 10, the lock member 5 moves from a direction perpendicular to the axis X in a direction approaching the axis X, and from the unlocked position (see the two-dot chain line in FIG. 10). It has moved to the lock position (see solid line in FIG. 10). However, the moving direction of the locking member 5 is not particularly limited as long as it is movable between the locking position and the unlocking position. For example, the lock member 5 may move in the axis X direction from the unlock position to the lock position (for example, the lock member 5 may move from the unlock position in the forward direction D1 (from bottom to top in FIG. 4) and lock position).

The shape and structure of the locking member 5 are not particularly limited as long as it can be moved between a locked position and an unlocked position. In this embodiment, the lock member 5 includes a lock main body 51 that can come into contact with the advancing/retracting member 3, and a drive section 52 that moves the lock main body 51 to the lock position and the unlock position, as shown in FIGS. 4 to 10. It has

When the lock body 51 is located at the lock position, the lock body 51 limits the movement of the forward/backward member 3 in the backward direction D2 to a predetermined range by contacting the contact portion CT of the forward/backward moving member 3, and the forward/backward moving member 3 is placed in the folded back position. Regulate reaching. As shown in FIGS. 4 to 9, the lock body 51 has a contact portion 5a that faces the contact portion CT of the reciprocating member 3 in the axis X direction when it is located at the lock position.

The shape and structure of the lock body 51 is such that, by coming into contact with the contact portion CT of the forward/backward movement member 3, movement of the forward/backward movement member 3 in the backward direction D2 is limited to a predetermined range, and the movement of the forward/backward movement member 3 is prevented from reaching the turning position. There is no particular limitation as long as it can be regulated. In this embodiment, as shown in FIGS. 4 to 10, the lock body 51 includes a driven part 511 driven by the driving part 52, and an extended structure that extends from the driven part 511 and has an abutted part 5a. 512. In this embodiment, the driven part 511 has a female threaded part that is screwed onto the outer periphery of the threaded shaft 522 of the driving part 52. The driven portion 511 is restricted from rotating together with the screw shaft 522 when the screw shaft 522 rotates around the shaft. As a result, when the screw shaft 522 rotates around the shaft, the lock body 51 including the driven portion 511 moves in the axial direction of the screw shaft 522 according to the rotation direction of the screw shaft 522. Thereby, the lock body 51 can be moved to the locked position and the unlocked position. Although the shape of the extension part 512 is not particularly limited, in this embodiment, it extends in an L-shape. The abutted portion 5a is provided as a flat surface on the forward direction D1 side of the distal end of the extended portion 512. Note that, as shown in FIGS. 7 to 9, the extension portion 512 enters into the space between the pair of protrusions 23 adjacent in the direction around the axis X when the lock member 5 is located at the lock position. It is configured as follows.

The drive unit 52 moves the lock body 51 to a lock position and an unlock position. The structure of the drive section 52 is not particularly limited as long as it can move the lock body 51 to the lock position and the unlock position. Although the drive unit 52 is an electric drive unit in this embodiment, it may be a manual drive unit.

In this embodiment, the drive unit 52 includes a motor 521 that can rotate in forward and reverse directions, and a screw shaft 522 that rotates by the driving force of the motor 521, as shown in FIGS. 4 to 10. The screw shaft 522 is a shaft member having a male thread formed on its outer periphery. As described above, the screw shaft 522 is screwed into a female screw provided in the driven portion 511 of the lock body 51. When the screw shaft 522 rotates in one direction by the driving force of the motor 521, the lock body 51, which is restricted from co-rotating with the screw shaft 522, moves toward the locked position along the axial direction of the screw shaft 522 (see FIG. (from the position indicated by the two-dot chain line to the position indicated by the solid line). Further, when the screw shaft 522 is rotated in the other direction by the driving force of the motor 521, the lock body 51 is moved along the axial direction of the screw shaft 522 toward the unlock position (from the position shown by the solid line in FIG. 10). move toward the position indicated by the two-dot chain line). Thereby, the lock body 51 can be moved to the lock position and the unlock position.

Next, the reciprocating member 3 will be explained in more detail.

As shown in FIGS. 11 to 13, the end of the advancing/retracting member 3 on the backward direction D2 side has a convex portion 3a projecting in the backward direction D2 in the axis X direction, and a concave portion in the forward direction D1 relative to the convex portion 3a. It has a recess 3b formed in. The concave portion 3b is adjacent to the convex portion 3a in the direction around the axis X of the reciprocating member 3.

The convex portion 3a is a portion that projects in the backward direction D2 in the axis X direction with respect to the recessed portion 3b at the end of the advancing/retracting member 3 on the backward direction D2 side. Although the number of the convex portions 3a is not particularly limited, in this embodiment, as shown in FIGS. 11 to 13, a plurality of convex portions 3a are provided in the direction around the axis 2) Yes.

As shown in FIGS. 11 to 13, the convex portion 3a is a contact portion CT that can come into contact with the abutted portion 5a of the locking member 5 in the locking position when the advancing/retracting member 3 is in the backward holding position. have. As will be described later, when the advancing/retracting member 3 moves in the retreating direction D2 while the advancing/retracting member 3 is in the retreating holding position, the abutting portion CT of the convex portion 3a contacts the abutted portion 5a of the locking member 5. Due to the contact, the advancing/retracting member 3 is prevented from reaching the folded position, and movement of the advancing/retracting member 3 from the backward holding position to the forward holding position is restricted.

In this embodiment, the contact portion CT is the end portion of the convex portion 3a on the retreating direction D2 side. As shown in FIG. 19, when the retractable member 3 is in the retracted holding position and the retractable member 3 is about to move in the backward direction D2, the contact portion CT contacts the lock member 5 located in the lock position. It comes into contact with the abutted portion 5a. Note that when the advancing/retracting member 3 is held at the retreating holding position, the distance in the axis X direction between the contact portion CT of the advancing/retracting member 3 and the abutted portion 5a is such that the advancing/retracting member 3 cannot reach the turning position. The interval is set. As a result, as will be described later, the advancing/retracting member 3 cannot reach the turning position, and movement of the advancing/retracting member 3 from the backward holding position to the forward holding position is restricted.

Furthermore, as shown in FIGS. 17 to 19, even if the locking member 5 is located at the locking position when the advancing/retracting member 3 moves from the forward holding position to the folding position and back to the backward holding position, A cam mechanism C guides the reciprocating member 3 so that the contact portion CT does not come into contact with the abutted portion 5a of the lock member 5. As a result, as will be described later, when the locking member 5 is in the lock position, the advancing/retracting member 3 cannot move from the backward holding position to the forward holding position, but it can move from the forward holding position to the backward holding position. can do. Note that, as shown in FIGS. 17 to 19, the convex portion 3a is formed when the advancing/retracting member 3 rotates around the axis It protrudes so as not to collide with the lock member 5 located at the lock position. The width of the convex portion 3a in the direction around the axis X is configured such that when the reciprocating member 3 located at the retracting holding position moves in the retracting direction D2, it contacts the abutted portion 5a of the locking member 5 located at the locking position. There is no particular limitation if it is.

As shown in FIGS. 11 to 13, the recessed portion 3b is a portion recessed in the forward direction D1 in the axis X direction relative to the convex portion 3a at the end of the reciprocating member 3 on the backward direction D2 side. A concave space SP (see FIG. 11) is formed by the concave portion 3b in a region adjacent to the convex portion 3a in the direction around the axis X. In this embodiment, the recess 3b is provided between the pair of protrusions 3a in the direction around the axis X, and a recessed space SP is formed between the pair of protrusions 3a. In this embodiment, a plurality of recesses 3b are provided in the direction around axis X (in this embodiment, two symmetrically with respect to axis X).

Although details will be described later, the recessed portion 3b is such that the locking member 5 is placed in the recessed space SP when the locking member 5 is located at the locking position and the advancing/retracting member 3 reaches the folding position from the forward holding position. It is configured as follows (see FIGS. 17 and 18). In the present embodiment, the recess 3b has an axis It is formed with a width in the circumferential direction and a depth in the axis X direction. Furthermore, in the present embodiment, the recess 3b is arranged on the axis It is formed with a width in the circumferential direction and a depth in the axis X direction.

In this embodiment, as shown in FIGS. 17 and 18, when the locking member 5 is located at the locking position and the advancing/retracting member 3 reaches the folding position from the forward holding position, the contact portion of the advancing/retracting member 3 The CT is located at a position that does not face the abutted portion 5a in the axis X direction, and the locking member 5 is located within the concave space SP. When the reciprocating member 3 reaches the folding position from the forward holding position, as shown in FIGS. 17 and 18, the contact portion CT of the convex portion 3a is on the backward direction D2 side than the abutted portion 5a in the axis X direction. However, the abutting portion CT is located at a position where it does not face the abutted portion 5a in the axis X direction, that is, at a position shifted in the direction around the axis X. Thereby, when the advancing/retracting member 3 moves from the forward holding position to the folding position, the abutted portion 5a of the locking member 5 in the locking position does not come into contact with the abutting portion CT of the advancing/retracting member 3. Further, since the locking member 5 located at the locking position enters the concave space SP, the abutted portion 5a and the reciprocating member 3 do not come into contact at the position of the concave portion 3b. Therefore, movement of the advancing/retracting member 3 in the backward direction D2 is not hindered, and the advancing/retracting member 3 can reach the turning position. Therefore, the advancing/retracting member 3 can reach the turning position and can move to the retreating holding position. In this way, even when the locking member 5 is in the locking position, the reciprocating member 3 can be operated from the forward holding position to the backward holding position.

Further, as shown in FIG. 19, when the advancing/retracting member 3 rotates around the axis It is located at a position opposite to the abutted portion 5a in the axis X direction. Further, when the advancing/retracting member 3 is held at the retreating holding position, the interval G1 in the axis The distance is set to an unreachable distance. Note that the interval G1 is not particularly limited as long as the advancing/retracting member 3 cannot reach the folding position from the retreating holding position, but for example, when the advancing/retracting member 3 is held at the retreating holding position, The distance G1 in the axis X direction between the contact portion 5a (see FIG. 19) is the distance G1 between the first cam surface Ca and the first contact surface Cd1 in the axis It is preferable that the distance in the direction is smaller than the distance G2 (see FIG. 19). In this case, it is possible to more reliably prevent the advancing/retracting member 3 from reaching the turning position.

As described above, when the reciprocating member 3 is held in the retracted holding position, the contact portion CT faces the abutted portion 5a, and the distance G1 between the abutment portion CT and the abutted portion 5a However, the distance is set at such a distance that the advancing/retracting member 3 cannot reach the turning position. As a result, as shown in FIG. 19, even if the advancing/retracting member 3 moves in the retreating direction D2, the advancing/retracting member 3 cannot reach the turning position. Therefore, the reciprocating member 3 cannot be moved from the retracted holding position to the forward holding position, and the locking member 5 can lock the retracting member 3 at the retracted holding position.

Further, the locking member 5 can move the locking member 5 to the locking position regardless of the position of the reciprocating member 3 in the axis X direction. Specifically, as shown in FIG. 13, when the advancing/retracting member 3 is in the forward holding position, the advancing/retracting member 3 is located on the forward direction D1 side, and a large space is created on the backward direction D2 side, so that the lock is not activated. The member 5 can be moved from the unlocked position to the locked position. Further, as shown in FIG. 15, when the advancing/retracting member 3 is in the retreating holding position, the locking member 5 can be moved to the locking position on the retreating direction D2 side of the contact portion CT of the convex portion 3a. A space is formed so that the locking member 5 can be moved to the locking position so that the abutted portion 5a of the locking member 5 faces the abutting portion CT of the reciprocating member 3. Therefore, regardless of the position of the reciprocating member 3 in the axis X direction, the locking member 5 can be moved to the locking position.

Furthermore, when the locking member 5 is moved to the locking position while the advancing/retracting member 3 is in the forward holding position, as shown in FIG. 17 and FIG. In this case, the contact portion CT and the abutted portion 5a do not face each other in the axis X direction. Thereafter, as shown in FIGS. 18 and 19, as the advancing/retracting member 3 rotates around the axis Shift to opposite positions in the X direction. Therefore, even if the locking member 5 is moved to the locking position in the forward holding position, the advancing/retracting member 3 can be moved to the retreating holding position, and when the locking member 5 moves to the retreating holding position, the advancing/retracting member 5 is moved to the locking position. The lock is completed. Therefore, as in the past, the locking operation by the locking member cannot be performed when the advancing/retracting member is in the forward holding position, and the locking operation cannot be performed until the advancing/retracting member is moved to the backward holding position. Unlike, the advancing/retracting moving device 1 of this embodiment can easily lock the advancing/retracting member 3.

Next, the operation of the forward/backward moving device 1 of this embodiment will be described using an example in which the forward/backward moving device 1 is applied to a lid opening/closing device D. Note that the following explanation is just an example, and the present invention is not limited by the following explanation.

The state in which the lid L (see FIG. 3) is closed corresponds to the state in which the reciprocating member 3 is located at the retracted holding position, as shown in FIGS. 15 and 19. In the state shown in FIG. 19, the locking member 5 restricts movement of the reciprocating member 3 to the forward holding position, so that opening of the lid L is locked. When opening the lid L from this state to perform refueling or the like, the locked state by the locking member 5 is first released. Specifically, as shown in FIG. 15, the lock member 5 is moved to the unlock position using an operating means such as a remote key (for example, an unlock signal is sent to the drive unit 52, and the drive unit 52 (the lock body 51 moves to the unlock position). When the locking member 5 moves to the unlocked position, the lid L can be opened by pressing the lid L.

When the lid L is pressed, the reciprocating member 3 is pressed in the backward direction D2 by the lid L and moves in the backward direction D2. When the advancing/retracting member 3 moves from the retreating holding position in the retreating direction D2, as shown in FIG. Moving in one direction D3 in the direction around X, the advancing/retracting member 3 reaches the turning position. After the advancing/retracting member 3 reaches the folding position, when the pressing operation on the lid L is released, the advancing/retracting member 3 moves in the forward direction D1 by the urging force of the urging member 4 in the forward direction D1. When the advancing/retracting member 3 moves in the forward direction D1, as shown in FIG. 16, the guided part Cd moves in one direction around the axis X while the second contact surface Cd2 of the guided part Cd contacts the introduction part Ce. Moving to D3, the guided portion Cd enters the guide portion Cc. When the guided portion Cd enters the guide portion Cc, the advancing and retracting member 3 moves in the forward direction D1 by the urging force of the urging member 4 and reaches the forward holding position (see FIG. 13). When the reciprocating member 3 reaches the forward holding position, as shown in FIG. 3, the lid L is opened and refueling can be performed from the refueling port. Note that in this state, the driver of the vehicle leaves the driver's seat, so the door may be locked to prevent the vehicle from being stolen while refueling. The door can be locked by transmitting a door lock signal using an operating means such as a remote key. In this embodiment, the drive unit 52 is controlled to move the lock body 51 to the lock position in response to a lock signal from the door of the vehicle. In this case, when the door is locked during refueling with the lid L open, the lid L becomes ready to be locked by the locking member 5 (see FIGS. 7 and 17), and when the lid L is closed, the lid L (See FIGS. 8 and 19).

When refueling is completed with the lid L open, the refueling port is closed and the lid L is closed. When the lid L is closed, the reciprocating member 3 is pressed in the backward direction D2 by the lid L and moves in the backward direction D2 from the forward holding position. When the advance/retreat member 3 moves from the forward holding position in the backward direction D2, as shown in FIG. Moving in one direction D3 in the direction around X, the advancing/retracting member 3 reaches the return position. At this time, even if the locking member 5 is located at the locking position as shown in FIG. Since the abutting portion CT of the convex portion 3a does not face the abutted portion 5a of the locking member 5, the advancing/retracting member 3 can reach the folded back position. As shown in FIG. 18, when the pressing operation on the lid L is released after the advancing/retracting member 3 reaches the turning position, the advancing/retracting member 3 is moved in the forward direction D1 by the biasing force of the biasing member 4 in the forward direction D1. Move to. When the advancing/retracting member 3 moves in the forward direction D1, as shown by the two-dot chain line in FIG. 18, the guided part Cd moves along the axis The guided portion Cd moves in one direction D3 in the circumferential direction and comes into contact with the stop portion ST and stops (see FIG. 19). As a result, the reciprocating member 3 is held at the retracting holding position.

As shown in FIG. 19, the contact portion CT of the convex portion 3a of the reciprocating member 3 faces the abutted portion 5a of the locking member 5 when the reciprocating member 3 is held at the retracting holding position. In this embodiment, the distance G1 between the contact portion CT and the contacted portion 5a is smaller than the distance G2 in the axis X direction between the first cam surface Ca and the first contact surface Cd1. Therefore, before the guided portion Cd overcomes the stop portion ST, the abutting portion CT of the convex portion 3a abuts against the abutting portion 5a of the locking member. As a result, the advancing/retracting member 3 cannot reach the turning position. Therefore, even if the lid L is pressed, the reciprocating member 3 cannot reach the folding position, so that the lid L is prevented from opening.

1 Advancement/retraction movement device 2 Case 2a Bottom surface 21 Advancement/retraction member accommodating portion 22 Lock member accommodating portion 23 Projection portion 24 Support shaft 3 Advancement/retraction member 3a Convex portion 3b Recessed portion 31 Locking portion 32 Main body 321 Biasing member accommodating portion 4 Biasing member 5 Lock Member 5a Abutted part 51 Lock body 511 Driven part 512 Extension part 52 Drive part 521 Motor 522 Screw shaft B Base (vehicle body)
Ba Opening C Cam mechanism Ca First cam surface Cb Second cam surface Cc Guide portion Cd Guided portion Cd1 First contact surface Cd2 Second contact surface Ce Introduction portion CT Contact portion D Lid opening/closing device D1 Forward direction D2 Reverse direction D3 One direction around the shaft G1 The axial distance between the abutting part and the abutted part G2 The axial distance between the first cam surface and the first contact surface H Hinge L Lid (Fuel lid)
La Locked part on operation target side SP Concave space ST, ST2 Stop part X axis

Claims (7)

case and
a reciprocating member that is movable relative to the case while rotating around an axis in a forward direction protruding from the case and in a backward direction opposite to the forward direction;
a biasing member that biases the advance/retreat member in the forward direction;
a cam mechanism configured to hold the reciprocating member in a forward holding position in which it is moved in the forward direction and in a backward holding position in which it is moved in the backward direction;
When the reciprocating member is located at the retracting holding position, a locking position restricts movement of the reciprocating member to the forward holding position, and an unlocking position allows the reciprocating member to move to the forward holding position. and a locking member movable between the
The reciprocating member is configured to pass through a turning position that is further toward the rearward direction with respect to the retracting holding position when moving between the forward holding position and the retracting holding position,
A contact portion is provided on the backward direction side of the advance/retreat member,
An abutted portion is provided on the forward direction side of the locking member,
When the locking member is located at the locking position and the advancing/retracting member reaches the folding position from the forward holding position, the abutting portion of the advancing/retracting member is in contact with the abutted portion of the locking member. and located at positions not facing each other in the axial direction,
When the advancing/retracting member rotates around the axis from the folded-back position and is held at the retreating holding position, the abutting portion of the advancing/retracting member is on the forward direction side with respect to the abutted portion of the locking member. and located at opposite positions in the axial direction,
The distance in the axial direction between the abutting part and the abutted part when the reciprocating member is held at the retracting holding position is such that the retracting member moves from the retracting holding position to the turning position. Advance/retreat movement device set at a distance that cannot be reached. The advancing/retreating member has a convex portion protruding in the backward direction in the axial direction, and a concave portion formed in a concave shape in the forward direction with respect to the convex portion, at an end on the backward direction side,
The contact portion is provided on the convex portion,
The concave portion is adjacent to the convex portion in a direction around the axis of the reciprocating member,
A concave space is formed by the concave portion in a region adjacent to the convex portion in a direction around the axis,
The forward and backward movement according to claim 1, wherein when the locking member is located at the locking position and the advancing and retracting member reaches the folding position from the forward holding position, the locking member is disposed within the concave space. Device. When the cam mechanism moves the reciprocating member from the forward holding position to the retracting holding position, after the retracting member reaches the folding position, the urging member moves the advancing/retracting member to the folding position. configured to be moved from the retracted holding position and held therein,
When moving the reciprocating member from the retracting holding position to the forward holding position, the cam mechanism applies the biasing force to the retracting member after the retracting member reaches the turning position from the retracting holding position. The advancing/retreating moving device according to claim 1 or 2, wherein the forward/backward moving device is configured to be moved from the folded position to the forward holding position and held by a member. The cam mechanism is
a first cam surface provided on the case, a second cam surface provided on the case, a guide portion provided on the case and extending along the axial direction of the advancing/retracting member;
a guided part that is provided on the outer periphery of the reciprocating member and has a first contact surface that contacts the first cam surface and a second contact surface that contacts the second cam surface, and that can be guided by the guide part; has
The first cam surface contacts the first contact surface of the guided portion when the advancing/retracting member moves in the retreating direction to the folding position, and moves the advancing/retracting member in the direction around the axis. It is tilted to rotate in one direction,
The second cam surface is configured such that when the advancing/retracting member moves from the folding position in the forward direction when the advancing/retracting member is held at the retreating holding position from the forward holding position via the folding position. , wherein the guide member is inclined so as to contact the second contact surface of the guided portion and rotate the reciprocating member in the one direction around the axis. The forward and backward movement device described. The distance in the axial direction between the abutting portion and the abutted portion when the reciprocating member is held at the retracting holding position is the same as that when the retracting member is located at the retracting holding position. The forward/backward movement device according to claim 4, wherein the distance between the first cam surface and the first contact surface is smaller than the distance in the axial direction. The advancement/retraction movement device according to any one of claims 1 to 5;
a base to which the advancing/retreating device is attached and having an opening;
A lid opening/closing device, comprising a lid that can open and close the opening of the base and that can be engaged with an end on the forward direction side of the reciprocating member. The lid is a lid for fuel or power supply of the vehicle,
The locking member includes a locking body that can come into contact with the reciprocating member, and a drive unit that moves the locking body to the locking position and the unlocking position,
The lid opening/closing device according to claim 6, wherein the drive unit is controlled to move the lock body to the lock position in response to a lock signal from a door of the vehicle.

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