JP2021085191A - Forward/backward moving device - Google Patents

Abstract

To provide a forward/backward moving device which is made compact in size in a forward/backward movement direction.SOLUTION: A forward/backward moving device comprises: a housing 10; a forward/backward moving member 20 which can move forward/backward to and from the housing 10; a forward/backward movement position control mechanism 30 which controls forward/backward movement of the forward/backward moving member 20 between a first position Pa1 on a forward movement side and a second position Pa2 on a backward movement position; a slider 40 which can move in the forward/backward movement direction of the forward/backward moving member 20 together with the forward/backward moving member 20; and a restriction mechanism 50 which can restrict the forward/backward movement of the forward/backward moving member 20. The slider 40 has a slider-side engagement part 42 engaging a radially outer side of the forward/backward moving member 20, and the restriction mechanism 50 has an engagement member 51 engaging the slider 40, and a drive part 52 allowing a movement between an engagement position Pb1 where the engagement member 51 engages the slider 40 and a separation position Pb2 where the engagement member separates from the slider 40.SELECTED DRAWING: Figure 1

Description

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

Conventionally, in a vehicle such as an automobile, as an opening / closing device for the fuel lid covering the refueling port, a first position (protruding position) in which the fuel lid is opened and a second position (pushing position) in which the fuel lid is closed have been used. An advancing / retreating moving device for advancing / retreating a moving / retreating member is known (see, for example, "Patent Document 1").

Japanese Unexamined Patent Publication No. 2016-75099

The advancing / retreating moving device described in Patent Document 1 is provided with an advancing / retreating position control mechanism for controlling the advancing / retreating movement of the advancing / retreating member, and the advancing / retreating position control mechanism includes a control cam unit having a cam groove and a control cam unit. It is composed of a lifter pin that engages with the cam groove of the above.
Further, the advancing / retreating moving device includes, for example, a regulation mechanism that regulates the advancing / retreating movement of the advancing / retreating member at the second position (pushing position) in order to prevent the advancing / retreating member from protruding and opening the fuel lid while the vehicle is traveling. The regulation mechanism is provided, and has an engaging portion including a lock pin and a through hole into which the lock pin can be inserted, and is composed of a plate-shaped portion that moves together with an advancing / retreating member.

Both of these advancing / retreating position control mechanisms and regulating mechanisms are provided on the retreating side of the advancing / retreating member so as not to hinder the advancing / retreating movement of the advancing / retreating member.
Specifically, in the advancing / retreating position control mechanism, the control cam portion is provided at the end portion of the advancing / retreating member on the retreating side, and the lifter pin is arranged on the retreating side of the advancing / retreating member so as to extend in the advancing / retreating direction.
Further, in the regulation mechanism, a plate-shaped portion is also provided at the end portion on the retracting side of the advancing / retreating member as in the control cam portion, and a lock pin is further provided on the urging member arranged on the retracting side of the advancing / retreating member. It is located on the receding side. Therefore, a space for arranging the lifter pin and the lock pin is required on the retracting side of the advancing / retreating member. There is a demand for miniaturization.

An object of the present invention is to provide an advancing / retreating moving device in which the size in the advancing / retreating direction is reduced.

The problem to be solved by the present invention is as described above, and next, the means for solving this problem will be described.

That is, the advancing / retreating moving device of the present invention moves the advancing / retreating member between the housing, the advancing / retreating member capable of advancing / retreating with respect to the housing, and the first position on the advancing side and the second position on the retreating side. The slider includes an advancing / retreating position control mechanism for controlling, a slider that can move in the advancing / retreating direction of the advancing / retreating member together with the advancing / retreating member, and a regulating mechanism that can regulate the advancing / retreating movement of the advancing / retreating member. The regulation mechanism has a slider-side engaging portion that engages with the outside in the radial direction, and the regulating mechanism is provided with an engaging member that engages with the slider, an engaging position at which the engaging member engages with the slider, and the slider. It is characterized by having a drive unit that moves between the separated positions.

As the effect of the present invention, the following effects are exhibited.
That is, according to the advancing / retreating moving device of the present invention, the size in the advancing / retreating direction can be reduced.

It is a figure which showed the overall structure of the advancing / retreating moving apparatus which concerns on one Embodiment of this invention, (a) is the figure which showed the cross section seen from the right direction, (b) is the figure which showed FIG. 1 (a). It is a figure which showed the cross section seen from the lower direction shown by the arrow X in the inside. It is a figure which showed the operation procedure of the advancing / retreating movement device which concerns on one Embodiment of this invention with time, and (a) is the figure which showed the state which the advancing / retreating member is stopped at the 1st position, (a). b) is a diagram showing a state in which the advancing / retreating member is slightly retracted from the first position and the slider side engaging portion is engaged with the advancing side engaged portion, and (c) is a diagram showing a state in which the advancing / retreating member is further retracted. It is the figure which showed the state which reached the 3rd position, and the sliding part came into contact with 2nd cam surface. It is a figure which showed the operation procedure of the advancing / retreating moving device which concerns on one Embodiment of this invention with time, and (a) shows the state which the advancing / retreating member retracted from a third position and came into contact with a housing lid body. (B) is a view showing a state in which the advancing / retreating member slightly advances from the state of being in contact with the housing lid and the sliding portion is in contact with the first cam surface. Is a diagram showing a state in which the advancing / retreating member further advances and reaches the second position. It is a figure which showed the operation procedure of the advancing / retreating movement device which concerns on one Embodiment of this invention with time, and (a) is a figure which retreats from the 2nd position and reaches the 3rd position, and the sliding part It is the figure which showed the state which came into contact with the 2nd cam surface, (b) is the figure which showed the state which the advancing / retreating member further retracted from a 3rd position and came into contact with a housing lid, (c) is a figure which showed. It is a figure which showed the state which moved forward slightly from the state where the advancing / retreating member was in contact with a housing lid, and the sliding part was in contact with a first cam surface. It is a schematic diagram which showed the operation procedure of the advance / retreat position control mechanism with time, (a) is the figure which showed the state which the sliding part is in contact with the first contact part, and (b) is the drawing which showed It is a figure which showed the state which the moving part retracted from the 1st contact part and came into contact with a 2nd cam surface, and (c) is It is the figure which showed the state which moved to the retracted side along the figure, and (d) is the figure which showed the state which the sliding part which slid on the 2nd cam surface moved forward and came into contact with the 1st cam surface again. is there. It is a schematic diagram showing the operation procedure of the advance / retreat position control mechanism over time, and in (a), the sliding portion in contact with the first cam surface moves to the forward side along the first cam surface, and the second It is the figure which showed the state which came into contact with the contact part, (b) is the figure which showed the state which the sliding part receded from the second contact part and came into contact with the second cam surface, (c). ) Is a diagram showing a state in which the sliding portion in contact with the second cam surface has moved to the retracted side along the second cam surface, and (d) is a diagram showing the sliding portion sliding on the second cam surface. It is the figure which showed the state which moved forward and came into contact with the 1st cam surface again. It is a figure which showed the structure of the opening / closing device of the fuel lid provided with the advancing / retreating moving device which concerns on one Embodiment of this invention. It is a figure which showed typically the attachment state of the advance / retreat movement device in a switchgear. It is a figure for demonstrating the relationship between the locking part of the advancing / retreating member, and the locked part of a fuel lid.

Next, the configuration of the advancing / retreating moving device 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 9.
Regarding the following description, for convenience, the vertical direction, the front-back direction, and the left-right direction of the advancing / retreating moving device 1 are defined and described by the directions of the arrows shown in FIGS. 1 to 4. Further, the forward side and the backward side in the operation direction of the advancing / retreating member are defined and described by the directions of the arrows shown in FIGS. 1 to 6.

The advance / retreat moving device 1 in the present embodiment is a device that can switch the state of an object by moving the advancing / retreating member to the first position or the second position.
As an example of such an advancing / retreating moving device 1, for example, in an opening in which a fuel filler port of a vehicle is housed, an opening / closing device for opening / closing a door (fuel lid) for opening or closing the opening is provided, and an advancing / retreating member is provided. An advancing / retreating moving device that switches the fuel lid, which is an object, to a locked state in the closed state or a state in which the fuel lid is released from the locked state and can be displaced to the open state can be mentioned.

The application example of the advancing / retreating moving device 1 is not limited to this embodiment, and can be applied to other devices having a similar configuration.

[Structure of switchgear 100 to which advancing / retreating moving device 1 is applied]
First, the configuration of the switchgear 100 to which the advancing / retreating moving device 1 according to the present embodiment is applied will be described with reference to FIGS. 7 to 9.
As shown in FIG. 7, the opening / closing device 100 is a device that opens or closes the opening in which the fuel filler port 106 of the vehicle is housed.
Specifically, the switchgear 100 is configured as a so-called fuel inlet box, and is a device installed in a refueling opening 101a in the vehicle body 101 for injecting fuel into a fuel tank (not shown) of the vehicle.

The switchgear 100 mainly includes a box body 102 attached to the refueling opening 101a of the vehicle body 101, a fuel lid 103 which is a door capable of closing the refueling opening 101a, a hinge 104 which rotatably supports the fuel lid 103, and an advance / retreat movement. The device 1 and the like are provided.

The box body 102 is attached so as to cover the refueling opening 101a from the back side (inside side of the vehicle) of the vehicle body 101, and refueling chamber that surrounds the refueling pipe (not shown) connected to the fuel tank on the refueling port 106 side. It constitutes 105.

One end of the refueling pipe fitted into the box main body 102 is arranged so as to protrude in the box main body 102, and constitutes the refueling port 106.
The fuel filler port 106 is closed by the screw cap 107. The screw cap 107 has a structure that can be removed from the refueling port 106, for example, when refueling.

Here, as shown in FIG. 8, a step 101b is formed on the peripheral edge of the refueling opening 101a with respect to the front side (outer side of the vehicle) surface of the vehicle body 101 so that the front side (the front side of the vehicle body 101) ( An annular surface portion 101c is formed recessed from the surface on the outer side of the vehicle to the back side (inner side of the vehicle) of the vehicle body 101, and the box body 102 is formed on the front side (inside of the vehicle) of the vehicle body 101 via the flange 102b. It is attached to the annular surface portion 101c from the outer side of the vehicle).

Although the details will be described later, the advancing / retreating moving device 1 includes an advancing / retreating member 20 and a locking portion 22 provided at the tip of the advancing / retreating member 20, and opens and closes the fuel lid 103 by advancing / retreating the advancing / retreating member 20.
On the other hand, as shown in FIG. 7, the fuel lid 103 is provided with a locked portion 103a to which the locking portion 22 of the advancing / retreating member 20 can be locked, and the locked portion 103a is locked, for example. It is configured by a hole with an opening through which the locking portion 22 can pass when the portion 22 is at a predetermined angular position.

According to the switchgear 100 having such a configuration, when the fuel lid 103 is closed, the fuel lid 103 pushes the advancing / retreating member 20, so that the advancing / retreating member 20 retracts to the back side (inside side of the vehicle) of the vehicle body 101.
Here, as shown in FIG. 9, when the fuel lid 103 (see FIG. 7) is closed and abuts on the locking portion 22, the locking portion 22 of the advancing / retreating member 20 is placed at a predetermined angular position (in the figure, in the drawing). Since it is located at the position of the locking portion 22 indicated by the alternate long and short dash line), it is inserted into the locked portion 103a through the opening of the locked portion 103a.

Then, when the advancing / retreating member 20 further retracts, the locking portion 22 located inside the locked portion 103a rotates and its angular position changes (in FIG. 9, the locking shown by the solid line). The position of the portion 22), the locking portion 22 is locked to the inner surface of the locked portion 103a.
In this way, the locking portion 22 is locked to the locked portion 103a, so that the fuel lid 103 is locked in the closed state.

On the other hand, when the fuel lid 103 is pushed in the closed state in which the refueling opening 101a (see FIG. 7) is closed by the fuel lid 103, an urging force acts on the advancing / retreating member 20 to move the advancing / retreating member 20 to the front side of the vehicle body 101 (of the vehicle). Advance to the outer side).
At this time, the locking portion 22 of the advancing / retreating member 20 rotates and its angular position becomes a predetermined angular position, so that the locked state between the locking portion 22 and the locked portion 103a is released.
As a result, the fuel lid 103 is opened.

Although the details will be described later, in the restricted state in which the advancing / retreating movement of the advancing / retreating moving device 1 is restricted, even if the fuel lid 103 is further pushed while the fuel lid 103 is in the closed state, the advancing / retreating member 20 may have the vehicle body 101. The urging force that advances to the front side (outside side of the vehicle) does not work.
Therefore, the fuel lid 103 does not open.

[Overall configuration of advancing / retreating moving device 1]
Next, the overall configuration of the advancing / retreating moving device 1 will be described with reference to FIG.
As shown in FIG. 1A, the advancing / retreating moving device 1 mainly includes a housing 10, an advancing / retreating member 20, an advancing / retreating position control mechanism 30, a slider 40, a regulating mechanism 50, and the like.

As will be described later, the advancing / retreating member 20 is provided so as to be able to advance / retreat with respect to the housing 10.
Further, the advancing / retreating member 20 is controlled by the advancing / retreating position control mechanism 30 to move forward / backward between the first position Pa1 and the second position Pa2.
Here, the first position Pa1 means a predetermined position of the advancing / retreating member 20 set on the forward side, and the second position Pa2 means the advancing / retreating member 20 set on the retreating side with respect to the first position Pa1. It means a predetermined position.

In the following description, the forward side of the advancing / retreating member 20 is defined as the upper side, and the retracting side is defined as the lower side.
FIG. 1A shows a state in which the advancing / retreating member 20 has reached the first position Pa1 in the advancing position.

A slider 40 that can move in the advancing / retreating direction is engaged with the advancing / retreating member 20, and the regulation mechanism 50 locks the advancing / retreating member 20 through the slider 40 to move the advancing / retreating member 20 forward / backward. It has a regulateable structure.

The slider 40 is located on one side of the advancing / retreating member 20 on the retracting side (lower end portion in the present embodiment) in the direction orthogonal to the advancing / retreating direction (vertical direction in the present embodiment) (in the present embodiment). , Rear side), and is engaged with the advancing / retreating member 20.
Further, the advancing / retreating position control mechanism 30 is mainly provided over a range S from the retreating side end portion of the advancing / retreating member 20 to the stroke region S of the retreating side end portion.
Further, the regulation mechanism 50 is arranged so as not to protrude to the backward side with respect to the region S.

As described above, in the advancing / retreating moving device 1 of the present embodiment, the advancing / retreating position control mechanism 30 and the regulating mechanism 50 are within the range in which the advancing / retreating member 20 is located when the advancing / retreating member 20 moves in the axial direction of the advancing / retreating member 20. The size of the advancing / retreating member 20 in the advancing / retreating direction of the advancing / retreating moving device 1 as a whole is reduced.

[Housing 10]
Next, the housing 10 will be described with reference to FIG.
As shown in FIG. 1A, the housing 10 has an accommodating portion that holds each component such as the advancing / retreating member 20, the advancing / retreating position control mechanism 30, the slider 40, and the regulating mechanism 50 by the positional relationship described later. It consists of a housing structure.
For example, in the present embodiment, the housing 10 extends in one direction (in the present embodiment, in the front-rear direction) and has a substantially rectangular parallelepiped shape with an open lower surface, and a housing lid that closes the opening 11a of the housing body 11. It is composed of a body 12 and the like.

Then, each component such as the advancing / retreating member 20 is housed in a predetermined position inside the housing 10 mainly through the opening 11a of the housing main body 11, and then the opening 11a is closed by the housing lid 12.

In the present embodiment, as a function of the housing lid 12, in addition to a function as a closing member for closing the opening of the housing body 11, the electric motor 52A and the engaging member 51 of the regulation mechanism 50, which will be described later, and the advancing / retreating position. It also functions as a pedestal for the urging member 31 of the control mechanism 30, but is not limited to this.
That is, a member having a function as a pedestal of these electric motors 52A and the like may be separately provided, and the function of the housing lid 12 may be limited to the function as a closing member for closing the opening of the housing body 11.

A through hole through which the advancing / retreating member 20 can pass is provided on one side surface of the housing 10, and the advancing / retreating member 20 is provided so as to be able to advance / retreat with respect to the housing 10 through the through hole. Further, the housing 10 is provided with a guide portion for guiding the moving direction of the advancing / retreating movement of the advancing / retreating member 20.
For example, in the present embodiment, a through hole 11b communicating with the inside of the housing 10 is provided on the side surface of the housing body 11 opposite to the opening 11a side, that is, at one end of the upper surface. The advancing / retreating member 20 is provided so as to be movable back and forth with respect to the housing 10 through the through hole 11b.
Further, a hollow through passage portion 11c extending in an upright direction with respect to the upper surface of the housing main body 11 corresponding to the guide portion is provided on the peripheral edge portion of the through hole 11b, and the inside of the through passage portion 11c. The advancing / retreating member 20 is guided by the penetrating passage portion 11c in the moving direction of the advancing / retreating movement without rattling.

Inside the housing 10, the first cam surface 13 and the second cam surface 14 constituting the advancing / retreating position control mechanism 30 and the second cam surface 14 forming the advancing / retreating position control mechanism 30 along the movement locus of the end of the advancing / retreating member 20 on the retreating side when advancing / retreating. A slider guide portion 11d for guiding the movement of the slider 40 is provided.
The details of the first cam surface 13, the second cam surface 14, and the slide guide portion 11d will be described later.

[Advance / retreat member 20]
Next, the advancing / retreating member 20 will be described with reference to FIG.
The advancing / retreating member 20 is a member capable of advancing / retreating with respect to the housing 10.
Specifically, as shown in FIG. 1A, the advancing / retreating member 20 can move to the first position Pa1 that has moved forward and the second position Pa2 that has moved backward.

Here, advancing means moving toward the outside of the housing 10, and retreating means moving toward the inside of the housing 10.
Further, the first position Pa1 is the stop position of the advancing / retreating member 20 that has moved forward, and the second position Pa2 is the stopping position of the advancing / retreating member 20 that has moved backward.
Therefore, for example, as in the present embodiment, when the forward-moving region of the advancing / retreating member 20 is located outside the housing 10 at any of the forward-side first position Pa1 and the backward-side second position Pa2. At the first position Pa1, a specific portion of the advancing / retreating member 20, for example, a locking portion 22 located at the tip of the advancing / retreating member 20 on the forward side is farther from the housing 10 than at the second position Pa2.

In the present embodiment, the first position Pa1 is a position where the locking portion 22 and the locked portion 103a (see FIG. 7) of the fuel lid 103 are in the unlocked state and the fuel lid 103 is in the open state.
Further, the second position Pa2 is a position where the locking portion 22 and the locked portion 103a of the fuel lid 103 are locked and the fuel lid 103 is held in the closed state.

As a modification of the present embodiment, the forward-moving region of the advancing / retreating member 20 may be located inside the housing 10 at any of the first position Pa1 and the second position Pa2.
In this case, at the first position Pa1, a specific portion of the advancing / retreating member 20, for example, the locking portion 22 of the advancing / retreating member 20 is closer to the outside of the housing 10 than at the second position Pa2.

Further, as another modification of the present embodiment, at the first position Pa1, the region on the forward side of the advancing / retreating member 20 is located outside the housing 10, and at the second position Pa2, the region on the advancing side of the advancing / retreating member 20 is located. It may be located inside the housing 10.
In this case, a specific portion of the advancing / retreating member 20, for example, the locking portion 22 of the advancing / retreating member 20 will appear and disappear from the housing 10.

The advancing / retreating member 20 is provided in the housing 10 so as to advance / retreat while rotating relative to the housing 10.

For example, in the present embodiment, the advancing / retreating member 20 has a cylindrical or cylindrical rod portion 21 and a locking portion 22 provided at the tip of the rod portion 21 on the forward side.
Then, the advancing / retreating member 20 is arranged in the housing 10 so that the locking portion 22 can advance to engage with the engaging object.

An engaged portion 23 and a sliding portion 24 are provided at the retracted end of the rod portion 21.
The engaged portion 23 is a portion that engages with the slider 40 described later in the axial direction of the rod portion 21 so as to be relatively rotatable, and engages with the slider 40 in the vicinity of the retracted end portion of the rod portion 21. It has an engaging portion 23a and a forward side engaged portion 23b that engages with the slider 40 on the forward side as compared with the retracting side engaged portion 23a.

The retracted side engaged portion 23a is a portion provided on the outer periphery of the retracting side of the advancing / retreating member 20, and the advancing side of the retracting side engaged portion 23a comes into contact with the retracting side of the slider 40. When the retracted side engaged portion 23a comes into contact with the slider 40, the advancing / retreating member 20 engages with the housing 10 via the slider 40, and the detachment from the housing 10 is suppressed. In the present embodiment, the forward-side engaged portion 23b has an abutting surface provided in the axial direction with respect to the axis of the advancing / retreating member 20 on the retracting side, and this abutting surface with respect to the slider 40. It is provided so that it can be slidable. The advancing side engaged portion 23b may be engaged with the slider 40 when the position of the advancing / retreating member 20 around the axis is a position where the advancing / retreating member 20 needs to be suppressed from advancing by the slider 40. In the embodiment, it is provided as an annular sliding surface facing the forward side. Specifically, the retracted side engaged portion 23a is provided as a step portion having an annular sliding surface.

The distance between the retracted side engaged portion 23a and the forward side engaged portion 23b is such that the slider 40 engaged with the advancing / retreating member 20 can move somewhat relative to the advancing / retreating member 20 in the advancing / retreating direction. It is set. In the present embodiment, the distance between the retracted side engaged portion 23a and the forward side engaged portion 23b is the housing side cam including the first cam surface 13 and the second cam surface 14 when the advancing / retreating member 20 is pushed in. The distance may be such that the advancing / retreating member 20 does not rotate forward due to engagement with the mechanism.

A sliding portion 24 that slides on the first cam surface 13 and the second cam surface 14 to rotate the advancing / retreating member 20 is provided between the retracting side engaged portion 23a and the advancing side engaged portion 23b. You may.

The sliding portion 24, together with the first cam surface 13 and the second cam surface 14 (see FIG. 5), which will be described later, is a portion constituting the advance / retreat position control mechanism 30, and is in contact with the first cam surface 13 on the forward side. It has a possible forward-side contact portion 24a and a backward-side contact portion 24b capable of contacting the second cam surface 14 on the backward side. The sliding portion 24 can rotate the advancing / retreating member 20 in the axial direction by sliding with the first cam surface 13 and the second cam surface 14 described later. As the first cam surface 13 and the second cam surface 14, a structure used in a known rotary cam mechanism that rotates around an axis by reciprocating in the axial direction can be adopted.

The advancing / retreating member 20 having such a configuration is passed through the through passage portion 11c with the locking portion 22 facing forward, and is inserted into the through hole 11b.
As a result, the advancing / retreating member 20 is held slidably while being restricted from moving in the direction orthogonal to the axial direction by the through passage portion 11c.

Here, inside the housing 10, a wall surface 10a in contact with the outer peripheral surface of the advancing / retreating member 20 is provided, a first cam surface 13 is formed on the forward side of the wall surface 10a, and a first cam surface 13 is formed on the backward side. The two cam surface 14 is formed.

Then, the advancing / retreating member 20 is arranged so that the engaged portion 23 is located between the first cam surface 13 and the second cam surface 14 provided on the wall surface 10a.
As a result, when the advancing / retreating member 20 moves in the forward direction, the sliding portion 24 comes into contact with the first cam surface 13 and slides, and when the advancing / retreating member 20 moves in the backward direction, the sliding portion 24 moves to the second cam. It comes into contact with the surface 14 and slides, and the advancing / retreating member 20 rotates about the axis.
That is, the advancing / retreating member 20 moves forward / backward while rotating about the axis as an example of moving forward / backward while rotating relative to the housing 10.
The detailed configuration of the sliding portion 24 and the first cam surface 13 and the second cam surface 14 will be described later.

The sliding portion 24 provided on the advancing / retreating member 20 and the first cam surface 13 and the second cam surface 14 provided on the wall surface 10a of the housing 10 advance / retreat while the advancing / retreating member 20 rotates relative to the housing 10. It constitutes a moving mechanism.
The first cam surface 13 and the second cam surface 14 are examples of a locus guide portion that guides the advance / retreat member 20 along the locus of rotational movement of the advance / retreat member 20, and the sliding portion 24 is guided by the locus guide portion. This is an example of a tracked guide unit.

As a modification of the present embodiment, the advancing / retreating member 20 may be provided with a locus guide portion such as a cam surface, and the wall surface 10a of the housing 10 may be provided with a locus guide portion such as a sliding portion.
That is, in either one of the housing 10 and the advancing / retreating member 20, a locus guide portion for guiding the moving locus of the advancing / retreating member 20 is provided so as to advance / retreat while rotating relative to the housing 10, and on the other hand, It is possible to adopt a configuration in which a tracked guide section is provided to be guided by the track guide section.

Further, in the present embodiment, as an example of the behavior of the advancing / retreating member 20 moving forward / backward while rotating relative to the housing 10, continuous rotation of the advancing / retreating member 20 accompanying the advancing / retreating movement is mentioned. Other behaviors are possible.
For example, it may be a temporary rotation of the advancing / retreating member 20 in the process of advancing / retreating movement, or at the start or end of the advancing / retreating movement, or intermittent rotation of the advancing / retreating member 20. It may be.

[Advance / retreat position control mechanism 30]
Next, the advance / retreat position control mechanism 30 will be described with reference to FIGS. 1, 5 and 6.
In FIG. 1A, the advancing / retreating position control mechanism 30 is a mechanism that controls the advancing / retreating member 20 to advance / retreat to the first position Pa1 that is advanced with respect to the housing 10 and the second position Pa2 that is retracted. ..
The advancing / retreating position control mechanism 30 has a moving function of moving the advancing / retreating member 20 in the advancing / retreating direction, and also has a stopping function of stopping the advancing / retreating member 20 at the first position Pa1 on the forward side or the second position Pa2 on the backward side.

Here, since the movement of the advancing / retreating member 20 in the advancing / retreating direction and the stop of the advancing / retreating member 20 at the first position Pa1 and the second position Pa2 are both determined by the relative positional relationship with the housing 10, the advancing / retreating position control is performed. The mechanism 30 includes a portion provided on the housing 10 and a portion provided on the advancing / retreating member 20 which are configured to control these positional relationships.

As shown in FIG. 5A, the advancing / retreating position control mechanism 30 is an example of the housing side member, and the first cam surface 13 provided on the wall surface 10a of the housing 10 (see FIG. 1A). This is an example of a portion provided on the advancing / retreating member 20 guided by the second cam surface 14, the first position contact portion 15, the second position contact portion 16, the first cam surface 13, and the second cam surface 14. Therefore, it is composed of a sliding portion 24 provided on the advancing / retreating member 20, an urging member 31 (see FIG. 1A), and the like.

The first cam surface 13 slides the sliding portion 24 of the advancing / retreating member 20 to rotate the advancing / retreating member 20 in the rotation direction centered on the axis, and the sliding portion 24 is positioned at the first position. It leads to the contact portion 15 or the second position contact portion 16.
Further, the second cam surface 14 rotates the advancing / retreating member 20 in the rotation direction about the axis by sliding the sliding portion 24 of the retreating advancing / retreating member 20.

In the present embodiment, the direction of rotation of the advancing / retreating member 20 by the first cam surface 13 and the direction of rotation of the advancing / retreating member 20 by the second cam surface 14 are the same, but the direction is limited to this. However, both rotation directions may be set to be opposite to each other.

On the other hand, the first position contact portion 15 comes into contact with the sliding portion 24 of the advance / retreat member 20 located at the first position Pa1, and stops the advance / retreat member 20 at the first position Pa1.
Further, the second position contact portion 16 comes into contact with the sliding portion 24 of the advance / retreat member 20 located at the second position Pa2, and stops the advance / retreat member 20 at the second position Pa2.

Here, the sliding portion 24 provided on the advancing / retreating member 20 includes a forward-side contact portion 24a capable of contacting the first cam surface 13, a retract-side contact portion 24b capable of contacting the second cam surface 14, and the like. Along with the forward-side contact portion 24a, the rotary-side contact portion 24c capable of contacting the first position contact portion 15 and the second position contact portion 16 is provided.

The forward-side contact portion 24a is formed based on the locus drawn by the sliding portion 24 in the advancing / retreating member 20 that rotates about the axis while advancing. For example, in the present embodiment, the rotation of the advancing / retreating member 20 It is composed of an inclined surface that gradually inclines toward the forward side in the direction.
Further, the retracting side contact portion 24b is formed based on the locus drawn by the sliding portion 24 in the advancing / retreating member 20 that rotates about the axis while retreating. For example, in the present embodiment, the advancing / retreating member 20 It is composed of an inclined surface that gradually inclines toward the receding side in the direction of rotation.
Further, the rotating side contact portion 24c can regulate the movement of the advancing / retreating member 20 in the rotational direction. Therefore, for example, in the present embodiment, the rotating side contact portion 24c is tangent to the rotational direction of the advancing / retreating member 20 (that is, the outer peripheral surface of the advancing / retreating member 20). It is composed of planes that are orthogonal to the direction).

In the present embodiment, the sliding portion 24 is composed of a substantially triangular protrusion having a peripheral edge formed by the forward contact portion 24a, the backward contact portion 24b, and the rotation side contact portion 24c. However, the present invention is not limited to this, and as long as it has at least the forward side contact portion 24a, the backward side contact portion 24b, and the rotation side contact portion 24c, it slides by other polygonal protrusions. The unit 24 may be configured.

Then, the first position contact portion 15 is a first position forward side contact formed of an inclined surface formed along the forward side contact portion 24a of the sliding portion 24 in the advancing / retreating member 20 located at the first position Pa1. It is composed of a contact portion 15a and a first position rotating side contact portion 15b formed of a flat surface formed along the rotating side contact portion 24c of the sliding portion 24.
Further, the second position abutting portion 16 is a second position advancing side contact formed of an inclined surface formed along the advancing side abutting portion 24a of the sliding portion 24 in the advancing / retreating member 20 located at the second position Pa2. It is composed of a contact portion 16a and a second position rotating side contact portion 16b formed of a flat surface formed along the rotating side contact portion 24c of the sliding portion 24.

Further, the first cam surface 13 is formed along the locus drawn by the forward side contact portion 24a of the sliding portion 24 in the advancing / retreating member 20 that rotates about the axis while advancing toward the first position Pa1. Sliding on the first forward-side inclined surface 13a, which is provided continuously with the first position contact portion 15, and the advancing / retreating member 20 that rotates about the axis while advancing toward the second position Pa2. It is formed along the locus drawn by the forward-side contact portion 24a of the portion 24, and is composed of a second forward-side inclined surface 13b and the like which are provided continuously with the second position contact portion 16.
Further, the second cam surface 14 is formed along the locus drawn by the retracting side contact portion 24b of the sliding portion 24 in the advancing / retreating member 20 that rotates about the axis while retracting from the first position Pa1. The advancing / retreating member 20 that rotates about the axis while retreating from the first retracting side inclined surface 14a and the second position Pa2 is formed along the locus drawn by the retracting side abutting portion 24b of the sliding portion 24. It is composed of a second receding side inclined surface 14b and the like.

In the present embodiment, the first forward-side inclined surface 13a of the first cam surface 13 is in contact with the second position on the other side, which is the opposite side to the one continuous with the first position contact portion 15. The portions 16 are also continuously provided, and when the position of the advancing / retreating member 20 is displaced from the second position Pa2 to the first position Pa1, the sliding portion 24 slides on the first forward side inclined surface 13a. The advancing / retreating member 20 rotates about the axis while advancing.

In the present embodiment, the housing side member (first cam surface 13, second cam surface 14, first position contact portion 15, and second position contact portion 16) having such a configuration, and a sliding portion. A so-called push-push mechanism is configured by the 24, and the sliding portion 24 slides on the first cam surface 13 or the second cam surface 14 while the first position contact portion 15 and the second position contact portion 15 and the second position contact portion. By moving between the first position Pa1 and the second position Pa2, the advancing / retreating member 20 moves back and forth between the first position Pa1 and the second position Pa2 while rotating in the rotation direction about the axis.

Specifically, in a state where the advancing / retreating member 20 is located at the first position Pa1, the sliding portion 24 comes into contact with the first position contact portion 15, and the sliding portion 24 is brought into contact with the first position contact portion 15. The movement in the forward direction and the rotation direction (the movement direction of the sliding portion 24 when the advance / retreat member 20 rotates about the axis) is restricted.
As a result, the advance / retreat member 20 is restricted from moving in the forward direction and in the rotation direction about the axis, and is stopped at the first position Pa1 by the advance / retreat position control mechanism 30.

When the advancing / retreating member 20 stopped at the first position Pa1 is moved in the retreating direction, the sliding portion 24 also moves in the retreating direction accordingly.
At this time, as shown in FIG. 5B, the sliding portion 24 moves in the backward direction while sliding in contact with the first position rotating side contact portion 15b of the first position contact portion 15.
Then, when the advancing / retreating member 20 reaches the third position Pa3 (see FIG. 1) which is further retracted from the second position Pa2, the sliding portion 24 hits the first retracting side inclined surface 14a of the second cam surface 14. Touch.

When the advancing / retreating member 20 is further moved in the retracting direction after the sliding portion 24 comes into contact with the first retracting side inclined surface 14a of the second cam surface 14, as shown in FIG. 5C, the sliding portion 24 Slides on the first receding side inclined surface 14a and moves in the receding direction and the rotational direction.
As a result, the advancing / retreating member 20 is rotated in the rotation direction about the axis while moving in the retracting direction.

Then, for example, the retractable end of the advancing / retreating member 20 comes into contact with the housing lid 12 (see FIG. 1) of the housing 10, and the advancing / retreating member 20 advances / retreats to a position where the movement of the advancing / retreating member 20 in the retreating direction is hindered. When the member 20 arrives, the moving direction of the advancing / retreating member 20 is changed from the retreating direction to the advancing direction.

The advancing / retreating member 20 whose moving direction is changed in the advancing direction moves in the advancing direction without rotating in the rotational direction about the axis.
Along with this, as shown in FIG. 5D, the sliding portion 24 also moves in the forward direction and comes into contact with the second forward side inclined surface 13b of the first cam surface 13.

Then, after the sliding portion 24 comes into contact with the second forward-side inclined surface 13b of the first cam surface 13, when the advancing / retreating member 20 is further moved in the forward direction, it slides as shown in FIG. 6A. The portion 24 slides on the second forward-side inclined surface 13b and moves in the forward direction and the rotation direction.
As a result, the advancing / retreating member 20 is rotated in the rotational direction around the axis again while moving in the forward direction.

After that, the sliding portion 24 reaches the second position contact portion 16, and the movement of the sliding portion 24 in the forward direction and the rotation direction is restricted by the second position contact portion 16.
As a result, the advancing / retreating member 20 is re-regulated from moving in the forward direction and moving in the rotational direction about the axis, and is stopped at the second position Pa2 by the advancing / retreating position control mechanism 30.

When the advancing / retreating member 20 stopped at the second position Pa2 is moved in the retreating direction again, the sliding portion 24 also moves in the retreating direction accordingly.
At this time, as shown in FIG. 6B, the sliding portion 24 moves in the backward direction while sliding in contact with the second position rotating side contact portion 16b of the second position contact portion 16.
Then, when the advancing / retreating member 20 reaches the third position Pa3 again, the sliding portion 24 comes into contact with the second retracting side inclined surface 14b of the second cam surface 14.

When the advancing / retreating member 20 is further moved in the retracting direction after the sliding portion 24 comes into contact with the second retracting side inclined surface 14b of the second cam surface 14, as shown in FIG. 6C, the sliding portion 24 Slides on the second receding side inclined surface 14b and moves in the receding direction and the rotational direction.
As a result, the advancing / retreating member 20 is rotated in the rotational direction around the axis again while moving in the retreating direction.

Then, as described above, when the advancing / retreating member 20 reaches a position where the movement of the advancing / retreating member 20 in the retreating direction is hindered, the moving direction of the advancing / retreating member 20 is changed from the retreating direction to the advancing direction.

The advancing / retreating member 20 whose moving direction is changed in the advancing direction moves in the advancing direction without rotating in the rotational direction about the axis.
Along with this, as shown in FIG. 6D, the sliding portion 24 also moves in the forward direction and comes into contact with the first forward side inclined surface 13a of the first cam surface 13.

Then, after the sliding portion 24 comes into contact with the first forward-side inclined surface 13a of the first cam surface 13, and then the advancing / retreating member 20 is further moved in the forward direction, the sliding portion 24 becomes the first forward-side inclined surface. It slides on 13a and moves in the forward direction and the rotation direction.
As a result, the advancing / retreating member 20 is rotated in the rotational direction around the axis again while moving in the forward direction.

After that, as shown in FIG. 5A again, the sliding portion 24 reaches the first position contact portion 15, and the first position contact portion 15 causes the sliding portion 24 to move in the forward direction and the rotational direction. Be regulated.
As a result, the advancing / retreating member 20 is restricted from moving in the forward direction and moving in the rotational direction about the axis, and is returned to the state of being stopped at the first position Pa1 again by the advancing / retreating position control mechanism 30. To.

It should be noted that such a housing side member (first cam surface 13, second cam surface 14, first position contact portion 15, and second position contact portion 16), and an engaging portion (sliding) of the advancing / retreating member 20. The configuration of the push-push mechanism including the parts 24) is not limited to the present embodiment, and as described above, rotation about the axis between the first position Pa1 and the second position Pa2. Any configuration may be used as long as the advancing / retreating member 20 can be moved forward / backward while rotating in the direction.

As shown in FIG. 1A, the urging member 31 urges the advancing / retreating member 20 in the axial direction of the advancing / retreating member 20, particularly in the advancing direction.
The urging member 31 is composed of, for example, a compression coil spring, and is arranged coaxially with the advancing / retreating member 20 on the retracting side of the advancing / retreating member 20 inside the housing 10.
The urging member 31 is not limited to the compression coil spring, and other members such as leaf springs can be adopted.

Then, for example, one end of the urging member 31 is inserted into the concave advancing / retreating member side holding portion 25 (see FIG. 1B) provided on the end surface of the advancing / retreating member 20 on the retreating side, and the housing lid 12 The other end is inserted into and held by a concave housing-side holding portion (not shown) provided on the upper surface (the inner surface of the housing 10).
As a result, the urging member 31 exerts an urging force on the advancing / retreating member 20 in the advancing direction of the advancing / retreating member 20.

As described above, the sliding portion 24 of the advancing / retreating member 20 is the first cam surface 13 or the first position contact portion when the advancing / retreating member 20 is urged in the forward direction by the urging member 31. It is regulated by abutting with 15 or the second position contact portion 16 (see FIG. 5).
Further, the movement of the advancing / retreating member 20 in the retreating direction is generated by an external force.

By the way, in the present embodiment, when the advancing / retreating member 20 is further retracted from the third position Pa3, the urging member 31 compressed in the axial direction of the advancing / retreating member 20 is held by the advancing / retreating member side holding portion 25 and the housing side holding portion 25. The advancing / retreating member 20 is restricted from moving in the retreating direction by being accommodated in the space formed by the portions and coming into contact with the retracting end surface of the advancing / retreating member 20 and the upper surface of the housing lid 12. There is.
Therefore, inside the housing 10, the space required on the retracting side of the advancing / retreating member 20 is substantially sufficient only in the region S where the end of the advancing / retreating member 20 on the retracting side strokes, and the advancing / retreating moving device 1 as a whole moves forward / backward. The size of the moving device 1 as a whole is reduced in the advancing / retreating direction of the advancing / retreating member 20.

[Slider 40]
Next, the slider 40 will be described with reference to FIG.
The slider 40 is an engaging member that engages with the advancing / retreating member 20 so as to be relatively movable, and abuts and engages with the engaging member 51 of the regulation mechanism 50 described later to lock the advancing / retreating movement of the advancing / retreating member 20.

As shown in FIG. 1A, the slider 40 engages with the radial outer side of the advancing / retreating member 20 so as to project with respect to the advancing / retreating member 20 toward the side orthogonal to the axis of the advancing / retreating member 20. Provided.
Further, the slider 40 is provided so as to be movable in the advancing / retreating direction of the advancing / retreating member 20 together with the advancing / retreating member 20.
Further, the slider 40 and the advancing / retreating member 20 within a predetermined region in the advancing / retreating direction of the advancing / retreating member 20 (in the present embodiment, the region between the advancing / retreating side engaged portion 23b and the retreating side engaged portion 23a). It is provided so that it can move relatively in the forward and backward directions.

Further, the slider 40 is provided so as to be relatively movable in the rotational direction about the axial center of the advancing / retreating member 20 when the advancing / retreating member 20 rotates in the axial direction.
Further, the slider 40 can be axially engaged with the forward side engaged portion 23b and the backward side engaged portion 23a and can move in the backward direction and the forward direction, respectively.

For example, in the present embodiment, the slider 40 has a slider main body 41 that can be engaged with the engaging member 51 of the regulation mechanism 50, and a slider-side engaging portion 42 that can be engaged with the advancing / retreating member 20.

As shown in FIG. 1B, the slider main body 41 has a slider-side engaging surface 41a that engages with the engaging member 51 on one side (retracting side in this embodiment) in the advancing / retreating direction, and the housing 10. It has a sliding surface 41b that is slidable in contact with the slider guide portion 11d provided in the above.
Further, the slider side engaging portion 42 is provided so as to extend from the slider main body portion 41 in a direction orthogonal to the advancing / retreating direction of the advancing / retreating member 20 and toward the advancing / retreating member 20 side.

Then, the slider 40 is arranged adjacent to the radial outer side of the advancing / retreating member 20 in the region between the advancing / retreating member 20 and the retracting side engaged portion 23a, and is engaged on the slider side. It is provided so as to be engageable with the forward-side engaged portion 23b and the backward-side engaged portion 23a via the portion 42.
As a result, when the advancing / retreating member 20 advances, the slider 40 engages with the retracting side engaged portion 23a via the slider side engaging portion 42, and advances as the advancing / retreating member 20 moves forward. Further, when the advancing / retreating member 20 retracts, the slider 40 engages with the advancing side engaged portion 23b via the slider side engaging portion 42, and retracts as the advancing / retreating member 20 retracts.

The slider 40 engages with the advancing / retreating member 20 on the advancing side engaged portion 23b or the retracting side engaged portion 23a via the slider side engaging portion 42, so that the advancing / retreating member 20 and the advancing / retreating member 20 move in the advancing / retreating direction. It is possible to move to.
Further, the slider 40 is relative to the advancing / retreating member 20 between the position where the slider side engaging portion 42 engages with the forward side engaged portion 23b and the position where the slider side engaging portion 42 engages with the retracting side engaged portion 23a. In addition, it can move in the forward and backward directions.
Since the slider 40 engages with the forward-side engaged portion 23b or the backward-side engaged portion 23a of the advancing / retreating member 20 via the slider-side engaging portion 42 on the forward side or the backward side in the advancing / retreating direction, the slider 40 engages with the advancing / retreating member 20. It is movable in the rotational direction relative to the advancing / retreating member 20.

The housing 10 is provided with a slider guide portion 11d that guides the movement of the slider 40.
For example, in the present embodiment, the slider guide portion 11d is composed of a groove portion having a bottom surface capable of contacting the sliding surface 41b of the slider main body portion 41, and as shown in FIG. In the moving slider 40, it is formed along the moving locus of the slider main body 41.

The slider 40 slides the slider guide portion 11d via the sliding surface 41b of the slider main body 41, so that the moving direction relative to the housing 10 is restricted only to the advancing / retreating direction, and the advancing / retreating member. Along with 20, the moving direction when moving forward and backward is guided.

[Regulatory mechanism 50]
The regulation mechanism 50 will be described with reference to FIG.
As shown in FIG. 1B, the regulation mechanism 50 has an engaging member 51 that can engage with the slider 40, and a driving unit 52 that moves the engaging member 51 between the engaging position Pb1 and the separation position Pb2. This is a mechanism for locking the advancing / retreating movement of the advancing / retreating member 20 by engaging the engaging member 51 with the slider 40.
Here, the engaging position Pb1 refers to the movement locus of the slider 40 that moves forward and backward with the advancing / retreating member 20, and the engaging member side engaging surface 51a of the engaging member 51 described later (see FIG. 1A). Means a predetermined position where the engaging member 51 can engage with the slider 40.
Further, the separation position Pb2 is a position in which the engagement member side engagement surface 51a of the engagement member 51 is separated from the movement locus of the slider 40 that moves forward and backward with the advance / retreat member 20. It means a predetermined position where the engaging member 51 is separated from the slider 40.

The drive unit 52 moves the engaging member 51 in the linear direction between the engaging position Pb1 and the separating position Pb2.
Specifically, the drive unit 52 moves the engaging member 51 in a direction intersecting the advancing / retreating direction of the advancing / retreating member 20, in other words, in a linear direction on a virtual plane intersecting the axial direction of the advancing / retreating member 20, and engages with the engaging member 51. The engaging member 51 is brought to reach the matching position Pb1 or the separating position Pb2.

For example, in the present embodiment, the drive unit 52 has an electric motor 52A as a drive source, a worm gear 52B coaxially provided on the drive shaft 52A1 of the electric motor 52A, and the like, and the engaging member 51 is provided via the worm gear 52B. Is connected with.
Then, the rotational motion of the electric motor 52A is converted into a linear motion by the worm gear 52B, and the engaging member 51 is moved in a linear direction between the engaging position Pb1 and the separation position Pb2 by the drive of the driving unit 52. ..

Here, as shown in FIG. 1A, a terminal 43 is provided on the lower surface of the housing lid 12 (the surface on the outer side of the housing 10), and the electric motor 52A is connected to the terminal 43. Power is supplied from the outside by relaying the terminal 43.

Then, when power is supplied to the drive unit 52 via the terminal 43, the electric motor 52A is driven to move the engaging member 51 to the engaging position Pb1, and the locking operation for the advancing / retreating member 20 is executed.
The drive unit 52 may, for example, lock the advancing / retreating member 20 by driving it independently. However, in the case where the drive unit 52 is provided in a vehicle or the like, the drive unit 52 moves in and out in conjunction with locking by key operation of the vehicle. A locking operation may be performed on the member 20.

The engaging member 51 slides in contact with the slider-side engaging surface 41a of the slider 40, the engaging member-side engaging surface 51a that can be engaged, and the upper surface of the housing lid 12 (the inner surface of the housing 10). It has a possible sliding surface 51b and a gear portion 51c to which the drive of the drive portion 52 is transmitted.

The engaging member side engaging surface 51a is provided on the other side of the advancing / retreating member 20 in the advancing / retreating direction (in the present embodiment, the advancing side), and as described above, one side of the slider main body 41 in the advancing / retreating direction (the advancing / retreating direction). It engages with the slider side engaging surface 41a provided on the retracting side).

The engaging member side engaging surface 51a may be provided on one side (retracting side) of the advancing / retreating member 20 in the advancing / retreating direction. In this case, the slider main body 41 of the slider 40 is in the advancing / retreating direction. The slider side engaging surface 41a is provided on the other side (advance side).
When the locking member 51 abuts and engages with the slider main body 41 of the slider 40 in the advancing / retreating direction of the advancing / retreating member 20, the advancing / retreating member 20 is suppressed from moving to the advancing side on the retreating side. At the locked position, it can be in a play state in which it can move to the backward side.

That is, it suffices that the locking member 51 can prevent the advancing / retreating member 20 from advancing toward the first position Pa1 by engaging with the slider 40. Therefore, as will be described later, for example, the second position Pa2 or the third position In order to move the advancing / retreating member 20 located at the position Pa3 toward the first position Pa1, it is necessary to temporarily move the advancing / retreating member 20 further to the backward side from the third position Pa3, and the second position Pa2 or the third When the advancing / retreating member 20 located at the position Pa3 is prevented from advancing toward the first position Pa1, the engaging member side engaging surface 51a of the engaging member 51 may be used as in the present embodiment. The slider 40 engaging surface 41a is provided on the other side (advancing side) of the advancing / retreating member 20 in the advancing / retreating direction, and the slider side engaging surface 41a of the slider 40 is provided on one side (retracting side) of the advancing / retreating direction. Engage with the slider 40 on the forward side.
Further, in the case of preventing the advancing / retreating member 20 located further backward from the third position Pa3 from advancing toward the first position Pa1, the engaging member side engaging surface 51a of the engaging member 51 Is provided on one side (reverse side) of the advancing / retreating member 20 in the advancing / retreating direction, and the slider side engaging surface 41a of the slider 40 is provided on the other side (advancing side) of the advancing / retreating direction. , Engages with the slider 40 on the retracted side.

Further, the engaging member 51 is provided with a sliding surface on the forward side that slides with the slider 40 when the slider 40 moves backward in the engaging portion that engages with the slider 40, and engages with the forward side of the slider 40. A locking surface that suppresses the movement of the slider 40 may be provided on the retracting side.
The sliding surface of the engaging member 51 with the slider 40 provided on the forward side may be, for example, an inclined surface facing the forward side and inclining toward the backward side.
Further, since the engaging member 51 has a sliding surface with the slider 40, the engaging member 51 can be moved by pushing the advancing / retreating member 20 in the backward direction.

For example, in the present embodiment, the gear portion 51c is configured by a reduction mechanism having a helical gear inside.
Further, the worm gear 52B of the drive unit 52 is penetrated through the gear portion 51c, and the gear portion 51c meshes with the worm gear 52B via the internal helical gear.
As a result, the engaging member 51 is connected to the drive unit 52 via the gear unit 51c, and the drive of the electric motor 52A is transmitted to the gear unit 51c via the worm gear 52B, whereby the worm gear 52B (or electric motor) is transmitted. It is moved in a linear direction along the axis of the drive shaft 52A1) of the motor 52A.

The regulation mechanism 50 having such a configuration is arranged so that the moving direction of the engaging member 51 intersects with the moving direction of the slider 40 that moves forward and backward with the advancing / retreating member 20 on the retracting side of the advancing / retreating member 20. ..
In the present embodiment, the engaging member 51 is moved in the linear direction, that is, in the axial direction of the drive shaft 52A1 by the worm gear 52B provided coaxially with the drive shaft 52A1 of the electric motor 52A. In the mechanism 50, when the engaging member 51 is stopped at the engaging position Pb1, the engaging member side engaging surface 51a is located on the retracting side of the slider side engaging surface 41a in the slider 40, and the engaging member 51 The worm gear 52B and the electric motor 52A are arranged so as to be positioned toward the side (in the present embodiment, the rear side) away from the advancing / retreating member 20 in order along the moving direction of the worm gear 52B and the electric motor 52A.

Then, the driving unit 52 of the regulation mechanism 50 moves the engaging member 51 toward the side away from the advancing / retreating member 20 (rear side), that is, the separation position Pb2 along the direction intersecting the advancing / retreating direction of the advancing / retreating member 20. As a result, the engaging member-side engaging surface 51a of the engaging member 51 moves from the retracting side of the slider-side engaging surface 41a so that the engaging member 51 is separated from the engaged state with respect to the slider 40. It is configured.

According to the regulation mechanism 50 having such a configuration, it is possible to arrange the advancing / retreating member 20 so as not to protrude further to the retreating side with respect to the region S where the end portion on the retreating side of the advancing / retreating member 20 strokes. 1 As a whole, the size of the advancing / retreating member 20 in the advancing / retreating direction can be reduced.

In the present embodiment, the moving direction of the engaging member 51 and the advancing / retreating direction of the advancing / retreating member 20 are set to intersect in an orthogonal direction, but the present invention is not limited to this, and the engaging member 51 is not limited to this. The moving direction of the member 20 and the advancing / retreating direction of the advancing / retreating member 20 may be set to intersect in the inclined direction.
The configuration of the drive unit 52 is not limited to the configuration of the electric motor 52A and the worm gear 52B as in the present embodiment, and any other configuration can be used as long as the engaging member 51 can be moved in the linear direction. It may be composed of an actuator (for example, an electric cylinder) or the like.

[Operation procedure of advancing / retreating moving device 1]
Next, the operation procedure of the advancing / retreating moving device 1 will be described with reference to FIGS. 2 to 6.
The advancing / retreating moving device 1 sets the locking state of the advancing / retreating member 20 and the locked portion 103a of the fuel lid 103 (see FIG. 7) in a state where the advancing / retreating member 20 is located at the first position Pa1. It is released and the locked state of the fuel lid 103 is released.
Further, the advancing / retreating moving device 1 holds a locked state between the locking portion 22 of the advancing / retreating member 20 and the locked portion 103a of the fuel lid 103 in a state where the advancing / retreating member 20 is located at the second position Pa2, and the fuel lid The 103 is locked.
Then, the advancing / retreating moving device 1 displaces the position of the advancing / retreating member 20 by operating according to the following procedure, and switches the fuel lid 103 to the locked state or the unlocked state.

First, the advancing / retreating moving device 1 is in an unlocked state with respect to the fuel lid 103, and as shown in FIG. 2A, the advancing / retreating member 20 is in a state of being stopped at the first position Pa1 on the forward side. It has become.
In this state, the locking portion 22 of the advancing / retreating member 20 is engaged at a predetermined angular position (in FIG. 9, indicated by a chain double-dashed line) in which the locked state of the fuel lid 103 with the locked portion 103a is released. It is in a state facing the position of the stop 22).
Further, as shown in FIG. 5A, the sliding portion 24 of the advancing / retreating member 20 is in contact with the first position contact portion 15, and the advancing / retreating member 20 is in contact with the urging member 31 (FIG. 5A). 1 (see (a)) is restricted from advancing by urging.

Further, as shown in FIG. 2A, the slider 40 is in a state in which the slider side engaging portion 42 is in contact with the retracting side engaged portion 23a of the advancing / retreating member 20, and the engaged portion 23 is in contact with the engaging portion 23. On the backward side of the above, it is in a state of being engaged with the advancing / retreating member 20.
Further, in the regulation mechanism 50, the engaging member 51 is located at the separation position Pb2, and the engaging member side engaging surface 51a is separated from the movement locus of the slider side engaging surface 41a in the slider 40. It is in a state.

When an external force pushing the advancing / retreating member 20 in such a state is applied to the retreating side, the advancing / retreating member 20 retreats.
Here, immediately after the advancing / retreating member 20 starts retreating, as shown in FIG. 2B, the slider 40 is in a state of being temporarily stopped without accompanying the movement of the advancing / retreating member 20, and the advancing / retreating member 20. It moves to the forward side relative to 20.
As a result, the slider-side engaging portion 42 of the slider 40 comes into contact with the forward-side engaged portion 23b of the advancing / retreating member 20, and the slider 40 engages with the advancing / retreating member 20 on the advancing side of the engaged portion 23. ..

After that, as shown in FIG. 2C, the advancing / retreating member 20 retracts with the slider 40 in the engaged state and reaches the third position Pa3.
Further, as shown in FIG. 5B, when the advancing / retreating member 20 reaches the third position Pa3, the sliding portion 24 of the advancing / retreating member 20 comes into contact with the first retracting side inclined surface 14a of the second cam surface 14. ..

The advancing / retreating member 20 that has reached the third position Pa3 is further moved to the retreating side by an external force pushing it toward the retreating side, and then, as shown in FIG. By abutting on the upper surface of the lid 12 (the inner surface of the housing 10), the movement in the backward direction is restricted and stopped.
At this time, as shown in FIG. 5C, the sliding portion 24 of the advancing / retreating member 20 slides on the first retracting side inclined surface 14a of the second cam surface 14.
As a result, the advancing / retreating member 20 rotates in the rotation direction about the axis while retreating from the third position Pa3.

The end surface of the advancing / retreating member 20 on the retreating side comes into contact with the upper surface of the housing lid 12, and after the movement of the advancing / retreating member 20 in the retreating direction is restricted, the external force applied to the advancing / retreating member 20 is released. Then, as shown in FIG. 3B, the advancing / retreating member 20 is urged by the urging member 31 to move forward.
Further, as shown in FIG. 5D, as the advancing / retreating member 20 advances, the sliding portion 24 of the advancing / retreating member 20 also advances and comes into contact with the second advancing side inclined surface 13b of the first cam surface 13.

When the sliding portion 24 of the advancing / retreating member 20 comes into contact with the second forward-side inclined surface 13b of the first cam surface 13 and then is urged by the urging member 31 to further advance the advancing / retreating member 20, FIG. ), The sliding portion 24 of the advancing / retreating member 20 slides on the second forward-side inclined surface 13b of the first cam surface 13 and comes into contact with the second position contact portion 16.
Along with this, the advancing / retreating member 20 advances while rotating in the direction of rotation about the axis, reaches the second position Pa2, and stops.

As a result, the locking portion 22 of the advancing / retreating member 20 is located at a predetermined angular position (the position of the locking portion 22 indicated by the solid line in FIG. 9) that can be locked with the locked portion 103a of the fuel lid 103. Displace in the facing state.
As a result, the advancing / retreating moving device 1 is locked with respect to the fuel lid 103.

When the advancing / retreating member 20 stops at the second position Pa2 and the advancing / retreating moving device 1 is locked with respect to the fuel lid 103, the engaging member 51 of the regulation mechanism 50 moves to the engaging position Pb1. As a result, the slider-side engaging surface 41a of the slider 40 engages with the engaging member-side engaging surface 51a of the engaging member 51.
As a result, the advancing / retreating member 20 is restricted from moving to the forward side by the sliding portion 24 abutting with the second position abutting portion 16, and the slider 40 engages with the engaging member 51. The movement to the retreating side is restricted, and the locking mechanism 50 maintains the locked state with respect to the fuel lid 103.

In the present embodiment, a spiral third cam surface centered on the axis of the advancing / retreating member 20 is provided between the advancing / retreating member 20 on the advancing side engaged portion 23b and the retreating side engaged portion 23a. 17 (see FIG. 3B) is provided, and as the advancing / retreating member 20 rotates while advancing toward the second position Pa2, the slider 40 uses the slider-side engaging portion 42 as the third cam. While sliding on the surface 17, it is moved to the backward side relative to the advancing / retreating member 20.
Then, in the state where the advancing / retreating member 20 is stopped at the second position Pa2, the slider 40 brings the slider side engaging portion 42 into contact with the retracting side engaged portion 23a of the advancing / retreating member 20 to engage the engaged portion 23. It is in a state of being engaged with the advancing / retreating member 20 on the retracting side of.

When the advancing / retreating moving device 1 held in the locked state with respect to the fuel lid 103 is switched to the unlocked state again, the engaging member 51 of the regulation mechanism 50 is moved to the separation position Pb2, and then the advancing / retreating member 20 is moved. Apply an external force to push it back again.

The advancing / retreating member 20 to which the external force pushing the retreat side is applied retreats from the second position Pa2 and reaches the third position Pa3 as shown in FIG. 4 (a).
Further, as shown in FIG. 6B, when the advancing / retreating member 20 reaches the third position Pa3, the sliding portion 24 of the advancing / retreating member 20 comes into contact with the second retracting side inclined surface 14b of the second cam surface 14. ..

The advancing / retreating member 20 that has reached the third position Pa3 is further moved to the retreating side by an external force pushing it toward the retreating side, and then, as shown in FIG. 4B, the advancing / retreating member 20 has a housing having an end face on the retreating side. By abutting on the upper surface of the lid 12 (the inner surface of the housing 10), the movement in the backward direction is restricted and stopped.
At this time, as shown in FIG. 6C, the sliding portion 24 of the advancing / retreating member 20 slides on the second retracting side inclined surface 14b of the second cam surface 14.
As a result, the advancing / retreating member 20 rotates in the rotation direction about the axis while retreating from the third position Pa3.

The end surface of the advancing / retreating member 20 on the retreating side comes into contact with the upper surface of the housing lid 12, and after the movement of the advancing / retreating member 20 in the retreating direction is restricted, the external force applied to the advancing / retreating member 20 is released. Then, as shown in FIG. 4C, the advancing / retreating member 20 is urged by the urging member 31 to move forward.
Further, as shown in FIG. 6D, as the advancing / retreating member 20 advances, the sliding portion 24 of the advancing / retreating member 20 also advances and comes into contact with the first advancing side inclined surface 13a of the first cam surface 13.

After that, when the advancing / retreating member 20 is further advanced by being urged by the urging member 31, the sliding portion 24 of the advancing / retreating member 20 slides on the first advancing side inclined surface 13a of the first cam surface 13, and FIG. As shown in a), it comes into contact with the first position contact portion 15 again.
Along with this, the advancing / retreating member 20 advances while rotating in the direction of rotation about the axis, reaches the first position Pa1 again, and stops, as shown in FIG. 2A. ..

As a result, the locking portion 22 of the advancing / retreating member 20 is locked at a predetermined angular position (in FIG. 9, indicated by a chain double-dashed line) in which the locked state of the fuel lid 103 with the locked portion 103a is released. It is displaced toward the position of the portion 22).
As a result, the advancing / retreating moving device 1 switches to the unlocked state again with respect to the fuel lid 103.

As described above, in the present embodiment, when switching from the unlocked state to the locked state with respect to the fuel lid 103, the advancing / retreating member 20 located at the first position Pa1 is further set on the retracting side as compared with the third position Pa3. This is performed by temporarily retracting to a position (in the present embodiment, a position where the retracted end of the advancing / retreating member 20 abuts on the upper surface of the housing lid 12), and then advancing toward the second position Pa2. ..
Further, when switching from the locked state to the unlocked state with respect to the fuel lid 103, the advancing / retreating member 20 located at the second position Pa2 is temporarily retracted to the predetermined position on the retracting side as compared with the third position Pa3. After that, it is performed by advancing toward the first position Pa1.

Then, in the present embodiment, in the state where the advancing / retreating member 20 is located at the second position Pa2, the engaging member 51 of the regulation mechanism 50 is engaged with the slider 40, and the advancing / retreating member 20 retracts from the second position Pa2. By restricting the movement of the advancing / retreating member 20, the advancing / retreating member 20 is prevented from moving to the first position Pa1 via the predetermined position on the backward side of the third position Pa3, and the locked state with respect to the fuel lid 103 is maintained. I'm supposed to do it.
In other words, the engaging member 51 of the regulation mechanism 50 is engaged with the slider 40 so that the sliding portion 24 of the advancing / retreating member 20 hinders the advancing / retreating member 20 toward the first position contact portion 15. It is configured.

In order to prevent the advancing / retreating member 20 located at the second position Pa2 from being displaced to the first position Pa1 by the regulation mechanism 50, the engaging member 51 is engaged with the slider 40 as in the present embodiment. The advancing / retreating member 20 located at the second position Pa2 may be restricted from retreating toward the predetermined position on the retreating side as compared with the third position Pa3, and as another application example, it may be restricted. The engaging member 51 may be engaged with the slider 40 to prevent the advancing / retreating member 20 that has retracted from the second position Pa2 to the predetermined position from advancing toward the first position Pa1.

[effect]
As described above, the advancing / retreating moving device 1 in the present embodiment is between the housing 10, the advancing / retreating member 20 capable of advancing / retreating with respect to the housing 10, and the first position Pa1 on the forward side and the second position Pa2 on the retreating side. An advance / retreat position control mechanism 30 that controls the advance / retreat movement of the advance / retreat member 20, a slider 40 that can move in the advance / retreat direction of the advance / retreat member 20 together with the advance / retreat member 20, and a regulation mechanism 50 that can regulate the advance / retreat movement of the advance / retreat member 20. To be equipped with.
Further, the slider 40 has a slider-side engaging portion 42 that engages with the radial outer side of the advancing / retreating member 20, and the regulation mechanism 50 includes an engaging member 51 that engages with the slider 40 and the engaging member 51 as a slider. It has a drive unit 52 that moves between an engaging position Pb1 that engages with 40 and a separation position Pb2 that is separated from the slider 40.

According to the advancing / retreating moving device 1 having such a configuration, since the slider 40 that engages with the regulation mechanism 50 can be provided on the side of the advancing / retreating member 20, the advancing / retreating moving device 1 as a whole advances / retreats the advancing / retreating member 20. It is possible to reduce the size in the direction.

Further, in the present embodiment, the advancing / retreating member 20 has an engaged portion 23 that engages with the slider side engaging portion 42 of the slider 40, and the engaged portion 23 retracts with the slider side engaging portion 42. It has a retractable side engaged portion 23a that engages on the side, and a forward side engaged portion 23b that engages the slider side engaging portion 42 on the forward side.
Then, in the housing 10, the slider 40 moves forward as the advancing / retreating member 20 moves forward due to the engagement between the slider side engaging portion 42 and the retracting side engaged portion 23a, and the slider side engaging portion 42 also moves forward. The slider guide portion 11d is configured so that the slider 40 moves backward as the advancing / retreating member 20 moves backward by engaging with the forward-side engaged portion 23b.

According to the advancing / retreating moving device 1 having such a configuration, the slider 40 provided on the side of the advancing / retreating member 20 is configured to slide with the movement of the advancing / retreating member 20, and thus engages with the slider 40. The slider 40 and the engaging member 51 can be engaged when the engaging member 51 of the matching regulation mechanism 50 is located on the side of the retracted advancing / retreating member 20.
Therefore, the size of the advancing / retreating moving device 1 as a whole can be reduced in the advancing / retreating direction.

Further, in the present embodiment, the advancing / retreating position control mechanism 30 has a sliding portion 24 provided on the advancing / retreating member 20 and a first cam surface 13 that abuts on the sliding portion 24 on the forward side of the sliding portion 24. The second cam surface 14 that comes into contact with the sliding portion 24 on the retracting side, and the first position contact portion 15 that the sliding portion 24 contacts in the forward direction when the advancing / retreating member 20 is located at the first position Pa1 and advancing / retreating. It has a push-push mechanism provided with a second position contact portion 16 with which the sliding portion 24 contacts in the forward direction when the member 20 is located at the second position Pa2.
Then, the advancing / retreating member 20 comes into contact with the second cam surface 14 at the third position Pa3 which is further retracted from the second position Pa2, and the engaging member 51 of the regulation mechanism 50 slides by engaging with the slider 40. The portion 24 is configured to hinder the advance of the advancing / retreating member 20 toward the first position contact portion 15.

According to the advancing / retreating moving device 1 having such a configuration, the advancing / retreating member 20 rotates due to the sliding portion 24 sliding with the second cam surface 14 due to the retreating of the advancing / retreating member 20 located at the second position Pa2. Or may prevent the rotated advancing / retreating member 20 from advancing. With this configuration, the advance / retreat of the advance / retreat member 20 is locked.

Further, in the present embodiment, the drive unit 52 of the regulation mechanism 50 is configured so that the engaging member 51 engages with and separates from the slider 40 by moving the engaging member 51 in the direction intersecting the advancing / retreating direction of the advancing / retreating member 20. Has been done.

That is, in the present embodiment, on the retracting side of the advancing / retreating member 20, the moving direction of the engaging member 51 and the moving direction of the slider 40 that advances / retreats with the advancing / retreating member 20 intersect.
The engaging member 51 is moved in a linear direction, that is, in the axial direction of the drive shaft 52A1 by the worm gear 52B provided coaxially with the drive shaft 52A1 of the electric motor 52A. When the engaging member 51 is stopped at the engaging position Pb1, the engaging member side engaging surface 51a is located on the retracting side of the slider side engaging surface 41a in the slider 40, and in the moving direction of the engaging member 51. Along the line, the worm gear 52B and the electric motor 52A are arranged so as to be positioned toward the side (in the present embodiment, the rear side) away from the advancing / retreating member 20 in order.
According to the regulation mechanism 50 having such a configuration, it is possible to arrange the advancing / retreating member 20 so as not to protrude further to the retreating side with respect to the region S where the end portion on the retreating side of the advancing / retreating member 20 strokes. 1 As a whole, the size of the advancing / retreating member 20 in the advancing / retreating direction can be reduced.

1 Advance / retreat moving device 10 Housing 10a Wall surface 11 Housing body 11a Opening 11b Through hole 11c Through passage 11d Slider guide 12 Housing lid 13 First cam surface 13a First forward side inclined surface 13b Second forward side inclined surface 14 Second Cam surface 14a 1st retracted inclined surface 14b 2nd retracted inclined surface 15 1st position contact part 15a 1st position forward side contact part 15b 1st position rotation side contact part 16 2nd position contact part 16a 1st Two-position forward side contact part 16b Second position rotation side contact part 17 Third cam surface 20 Advance / retreat member 21 Rod part 22 Locking part 23 Engagement part 23a Reverse side engaged part 23b Forward side engaged part 24 Sliding part 24a Forward side contact part 24b Reverse side contact part 24c Rotation side contact part 25 Advance / retreat member side holding part 30 Advance / retreat position control mechanism 31 Bounce member 40 Slider 41 Slider body 41a Slider side engagement surface 41b Sliding surface 42 Slider side engaging part 43 Terminal 50 Regulatory mechanism 51 Engaging member 51a Engaging member side engaging surface 51b Sliding surface 51c Gear part 52 Drive part 52A Electric motor 52A1 Drive shaft 52B Worm gear 100 Opening and closing device 101 Body 101a Refueling port opening 101b Step 101c Ring surface 102 Box body 102b Flange 103 Fuel lid 103a Locked part 104 Hinge 105 Refueling room 106 Refueling port 107 Screw cap Pb1 Engagement position Pb2 Separation position Pa1 First position Pa2 Second position Pa3 Third position

Claims (4)

With the housing
An advancing / retreating member that can advance / retreat with respect to the housing,
An advance / retreat position control mechanism that controls the advance / retreat movement of the advance / retreat member between the first position on the forward side and the second position on the retreat side,
A slider that can move in the advancing / retreating direction of the advancing / retreating member together with the advancing / retreating member,
It is equipped with a regulation mechanism that can regulate the advance / retreat movement of the advance / retreat member.
The slider has a slider-side engaging portion that engages with the radial outer side of the advancing / retreating member.
The regulatory mechanism
An engaging member that engages with the slider,
It has a drive unit that moves the engaging member between an engaging position that engages with the slider and a separated position that is separated from the slider.
Advance / retreat movement device. The advancing / retreating member has an engaged portion that engages with the slider-side engaging portion of the slider.
The engaged portion is
The retracting side engaged portion that engages with the slider side engaging portion on the retracting side,
It has a slider-side engaging portion and a forward-side engaged portion that engages on the forward side.
The housing is
Due to the engagement between the slider-side engaged portion and the retracted-side engaged portion, the slider moves forward with the forward movement of the advancing / retreating member, and the slider-side engaged portion and the forward-side engaged portion are engaged. It has a slider guide portion configured so that the slider moves backward with the backward movement of the advancing / retreating member by engaging with.
The advancing / retreating moving device according to claim 1. The advance / retreat position control mechanism is
The sliding portion provided on the advancing / retreating member and
A first cam surface that abuts on the sliding portion on the forward side of the sliding portion and a second cam surface that abuts on the retracting side of the sliding portion.
When the advancing / retreating member is located at the first position, the sliding portion comes into contact with the first position contact portion in the forward direction, and the first position contact portion.
It has a push-push mechanism provided with a second position contact portion with which the sliding portion contacts in the forward direction when the advance / retreat member is positioned at the second position.
The advancing / retreating member comes into contact with the second cam surface at a third position further retracted from the second position.
The engaging member of the regulating mechanism is configured so that the sliding portion hinders the advance of the advancing / retreating member toward the first position contact portion by engaging with the slider.
The advancing / retreating moving device according to claim 1 or 2. The drive unit of the regulation mechanism
By moving the engaging member in a direction intersecting the advancing / retreating direction of the advancing / retreating member, the engaging member is configured to be engaged with and separated from the slider.
The advancing / retreating moving device according to any one of claims 1 to 3.

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