JP7103880B2 - Lid opening and closing device - Google Patents

Description

The present disclosure relates to a lid opening / closing device for opening / closing a lid.

For example, the lid opening / closing device described in Patent Document 1 includes a push lifter that presses the lid in an opening direction, a lock member that maintains the lid at a position where the opening is closed, and a rack, a pinion, a speed reducer, and an electric motor. It is equipped with a drive device configured to have. The drive device displaces the locking member between the locking and unlocking positions.

Japanese Unexamined Patent Publication No. 2017-166322

In the invention described in Patent Document 1, a drive device configured to include a rack, a pinion, a speed reducer, and an electric motor in addition to a push rod such as a push lifter is required. It gets complicated.

In view of the above points, the present disclosure discloses an example of a lid opening / closing device capable of suppressing the complexity of the configuration.

It is desirable that the opening / closing device of the lid (3) for opening / closing the opening includes, for example, at least one of the following constituent requirements.
That is, the constituent requirements are a rod (51) that can be displaced between the first position and the second position, and a barb member (57) that can be displaced with respect to the rod (51) and the casing (52). , "Lock position that can be locked to the locked portion (3B) provided on the lid (3)" and "Open position that cannot be locked to the locked portion (3B)" Displacement of the barb member (57) displaceable between the barb member (57) and the barb member (57) using a force that displaces the rod (51) in a direction parallel to the central axis (Lp) of the rod (51). It is a mechanism (54).

The bar member (57) can be rotationally displaced between the locked position and the open position, and the displacement mechanism (54) is used when the rod (51) is displaced from the first position side to the second position side. A conversion unit (58) is provided that converts at least a part of the force acting on the rod (51) into a force that rotationally displaces the barb member (57) from the open position side to the lock position side.

The conversion unit (58) is provided at a position of the bar member (57) deviated from the rotation center of the bar member (57), and is integrally rotationally displaced with the bar member (57). , And having a contacted portion (58D) provided on the rod (51) and in contact with the abutting portion (58A) when the rod (51) is displaced from the protruding position side to the storage position side. Is desirable.

As a result, in the lid opening / closing device, the bar member (57) is displaced between the locked position and the open position in mechanically interlocking with the displacement of the rod (51). Therefore, since the drive device can be abolished from the lid opening / closing device, it is possible to suppress the configuration of the lid opening / closing device from becoming complicated.

Incidentally, the reference numerals in the parentheses are examples showing the correspondence with the specific configurations and the like described in the embodiments described later, and the present disclosure is limited to the specific configurations and the like shown in the symbols in the parentheses. It's not something.

It is a figure which shows the lid opening and closing device which concerns on 1st Embodiment. It is a figure which shows the lid opening and closing device which concerns on 1st Embodiment. It is an exploded view of the police box mechanism which concerns on 1st Embodiment. It is a figure which shows the open position and the protruding position in 1st Embodiment. It is a figure which shows the lock position and the storage position in 1st Embodiment. It is operation explanatory drawing of the police box mechanism which concerns on 1st Embodiment. It is operation explanatory drawing of the police box mechanism which concerns on 1st Embodiment. It is operation explanatory drawing of the lid opening and closing device which concerns on 1st Embodiment. It is operation explanatory drawing of the lid opening and closing device which concerns on 1st Embodiment. It is a figure which shows the bar member and the push rod which concerns on 1st Embodiment. It is a figure which shows the push rod which concerns on 1st Embodiment. It is a figure which shows the bar member which concerns on 1st Embodiment. It is a figure which shows the bar member and the push rod which concerns on 1st Embodiment. It is a figure which shows the bar member and the push rod which concerns on 1st Embodiment. It is operation explanatory drawing of the police box mechanism which concerns on 1st Embodiment. It is operation explanatory drawing of the lid opening and closing device which concerns on 1st Embodiment. It is operation explanatory drawing of the lid opening and closing device which concerns on 1st Embodiment. It is a figure which shows the open position and the protruding position in 2nd Embodiment. It is a figure which shows the lock position and the storage position in 2nd Embodiment. It is a figure which shows the lid opening and closing device which concerns on 3rd Embodiment. It is a figure which shows the lid opening and closing device which concerns on 3rd Embodiment. It is a figure which shows the open position and the protruding position in 3rd Embodiment. It is a figure which shows the state which was displaced from the open position and the protruding position to the lock position side and the storage position side in 3rd Embodiment. It is a figure which shows the state which was displaced from the open position and the protruding position to the lock position side and the storage position side in 3rd Embodiment. It is a figure which shows the lock position and the storage position in 3rd Embodiment. It is a figure which shows the open position and the protruding position in 3rd Embodiment. It is a figure which shows the open position and the protruding position in 4th Embodiment. It is a figure which shows the lock position and the storage position in 4th Embodiment.

The following "embodiments of the invention" show an example of embodiments belonging to the technical scope of the present disclosure. That is, the matters specifying the invention described in the claims are not limited to the specific configuration, structure, etc. shown in the following embodiments.

It should be noted that the arrows and the like indicating the directions attached to each figure are described in order to make it easier to understand the relationship between each figure. The inventions presented in the present disclosure are not limited to the directions given in each figure.

At least one member or part described with a reference numeral is provided unless otherwise specified such as "one". That is, if there is no notice such as "one", two or more of the members may be provided. The lid switchgear shown in the present disclosure includes at least components such as members or parts described with reference numerals.

(First Embodiment)
1. 1. Outline of the lid opening / closing device In the present embodiment, an example of the lid opening / closing device according to the present disclosure is applied to a vehicle. Specifically, as shown in FIG. 1, the lid opening / closing device 1 is an example of a device that controls the opening / closing operation of the lid 3.

The lid 3 is an example of a closed body that opens and closes a fuel filler port (not shown) of a vehicle. The fuel filler port is an example of an opening provided in the outer panel (not shown) of the vehicle. The lid body 3 is attached to the outer plate via the hinge portion 3A. The lid 3 can rotate with respect to the outer plate with a virtual line orthogonal to the paper surface as a rotation center line.

2. Configuration of the lid opening / closing device 2.1 Outline of the lid opening / closing device As shown in FIG. 2, the lid opening / closing device 1 includes at least a rod device 5 and a lock device 7. The rod device 5 is a device for controlling the opening / closing operation of the lid body 3. The lock device 7 is a device for restricting the operation of the rod device 5.

2.2 Configuration of rod device As shown in FIG. 3, the rod device 5 has at least a push rod 51, a rod casing 52, a bar member 53, a displacement mechanism 54, an alternation mechanism 55, and the like.

<Push rod>
The push rod 51 is a rod-shaped member that is displaced between a protruding position (see FIG. 4) and a storage position (see FIG. 5). Each time the push rod 51 receives a pressing force F (see FIGS. 4 and 5) in the longitudinal direction of the push rod 51, the push rod 51 is alternately displaced between the protruding position and the retracted position.

That is, when the push rod 51 receives the pressing force F while it is in the protruding position, the push rod 51 is displaced to the retracted position by the pressing force F. When the push rod 51 receives the pressing force F while in the retracted position, the push rod 51 is displaced to the protruding position by the elastic force of the spring 55A (see FIG. 3).

The protruding position is a position where a part 51A of the push rod 51 protrudes from the rod casing 52, as shown in FIG. As shown in FIG. 5, the storage position is a position where at least a part of the part 51A is stored in the rod casing 52. The protruding position is an example of the first position. The storage position is an example of the second position.

As shown in FIG. 4, the rod casing 52 is a cylindrical member having an insertion hole 52A into which the push rod 51 is inserted so as to be able to appear and disappear. The cross-sectional shape of the insertion hole 52A is a shape (for example, a rectangular shape) that can restrict the push rod 51 from rotating about the central axis Lp (see FIG. 3) of the push rod 51.

<Police box mechanism>
The alternating mechanism 55 is a mechanism for alternating displacement of the push rod 51. As shown in FIG. 3, the alternation mechanism 55 has at least a spring 55A, a first cam 55B, a second cam 55C, a regulation cylinder 55D, a shaft member 55E, and the like.

The spring 55A is a spring capable of exerting an elastic force upward on the paper surface in FIG. 7. The “upward direction of the paper surface in FIG. 7” is a direction from the storage position side to the protrusion position side. Hereinafter, the direction is referred to as "protrusion direction D1". The direction opposite to the protruding direction D1 is referred to as "storage direction D2".

As shown in FIG. 6, a shaft member 55E is rotatably inserted into the first cam 55B and the second cam 55C. The shaft member 55E has a central axis common to the central axis Lp, and is integrated with the push rod 51 by a fixing method such as press fitting.

That is, the first cam 55B and the second cam 55C are integrated with the push rod 51 in a state where they can rotate with the center axis Lp as the center line. At least one (three in this embodiment) protrusions 55F are provided on the outer peripheral surface of the first cam 55B.

At least one protrusion 55G is also provided on the outer peripheral surface of the second cam 55C. The number of protrusions 55G according to the present embodiment is the same as that of the protrusions 55F. Each of the protrusions 55F and each of the protrusions 55G protrudes from the outer peripheral surface in a direction orthogonal to the central axis Lp.

As shown in FIG. 3, the outer peripheral wall 55H of the regulation cylinder 55D is provided with the same number of groove portions 55J as the protrusions 55G. These groove portions 55J extend to the end of the regulation cylinder 55D in parallel with the central axis Lp.

Each of the plurality of protrusions 55F can be displaced along the extending direction of the groove 55J in the groove 55J in a state of being fitted into each of the plurality of groove 55J (see FIGS. 6 and 7). That is, the first cam 55B is displaced in parallel in the central axis Lp direction without rotating around the central axis Lp.

Each of the plurality of protrusions 55G can be displaced between a state of being fitted into one of the groove portions 55J (see FIG. 6) and a state of being separated from the groove portion 55J (see FIG. 7). That is, in a state where each protrusion 55G is fitted into one of the groove 55Js, the second cam 55C is displaced in parallel in the central axis Lp direction without rotating around the central axis Lp.

When each protrusion 55G is separated from the groove 55J, the second cam 55C is in a state where it can rotate around the central axis Lp. At least one engaging protrusion 55K that can engage with each protrusion 55G is provided at the end of the regulation cylinder 55D, that is, on the extension direction open end side of each groove 55J.

Each engaging protrusion 55K is a protrusion that protrudes from the end of the regulation cylinder 55D toward the storage direction D2. Then, in a state where any of the protrusions 55G is caught and engaged with any of the engaging protrusions 55K (hereinafter, referred to as an engaged state), the rotation of the second cam 55C is restricted.

The root position of each engaging protrusion 55K is deviated toward the extension direction D1 side with respect to the extension direction open end of each groove 55J. The spring 55A always presses the second cam 55C in the protruding direction D1. Therefore, in the state shown in FIG. 7, the elastic force of the spring 55A functions as a force for maintaining the engaged state between the protrusion 55G and the engaging protrusion 55K.

As shown in FIG. 6, the first cam 55B and the second cam 55C can exert a function of converting the pressing force F in the storage direction D2 into the rotational force Fr. The rotational force Fr is a force that rotates the second cam 55C in the direction of the arrow.

That is, the first cam 55B is provided with at least one inclined surface 55L (in the present embodiment, a plurality of the inclined surfaces 55L). The second cam 55C is provided with at least one inclined surface 55M (in the present embodiment, a plurality of inclined surfaces 55M).

The inclined surfaces 55L and 55M are surfaces inclined with respect to the direction of the pressing force F. The direction of inclination of each of the inclined surfaces 55L and 55M is a direction in which the component force of the pressing force F generated on the inclined surface 55M becomes the rotational force Fr when the inclined surface 55L and the inclined surface 55M come into contact with each other.

<Latch member>
The bar member 53 is a member that can be displaced with respect to the push rod 51 and the rod casing 52, and can be displaced between the locked position (see FIG. 9) and the open position (see FIG. 8). As shown in FIG. 9, the lock position is a position where the bar member 53 can be locked with respect to the locked portion 3B.

The locked portion 3B is a portion provided on the lid body 3. The locked portion 3B is configured to have a surface that intersects the central axis Lp. The locked portion 3B according to the present embodiment is integrated with the lid 3 via a box-shaped locked body 3C.

A through hole 3D through which the push rod 51 can penetrate is provided in a portion of the locked body 3C facing the push rod 51. The locked portion 3B is provided on the outer edge portion of the through hole 3D.

As shown in FIG. 8, the open position is a position where the locked portion 3B cannot be locked, and is a position closer to the central axis Lp than the locked position. In other words, the lock position is deviated from the open position in the direction intersecting the central axis Lp. That is, the bar member 53 is displaced in the direction intersecting the central axis Lp.

<Displacement mechanism>
The displacement mechanism 54 is a mechanism that displaces the bar member 53 by using a force that displaces the push rod 51 in a direction parallel to the central axis Lp (hereinafter, referred to as a pressing force F). The source of the pressing force F is a "pressing force" in the direction in which a user such as a driver closes the lid 3. That is, the pressing force F is the force of the component of the "pressing force" parallel to the central axis Lp.

The force that the user presses on the lid 3 is transmitted to the push rod 51 via the pressing portion 3E. The pressing portion 3E is provided at a portion of the lid 3 on the push rod 51 side. The pressing portion 3E according to the present embodiment is located in the locked body 3C.

The displacement mechanism 54 has at least a conversion unit 56. The conversion unit 56 can convert at least a part of the pressing force F into the operating force Fd. The pressing force F is an example of a force acting on the push rod 51 when the push rod 51 is displaced from the protruding position side to the retracted position side. The operating force Fd is a force that displaces the bar member 53 from the open position side to the lock position side.

As shown in FIG. 10, the conversion unit 56 includes at least a cam unit 56A, a driven unit 56C, and the like. As shown in FIG. 11, the cam portion 56A is a portion provided with a tapered surface 56B inclined with respect to the central axis Lp, and is a portion that is integrally displaced with the push rod 51.

That is, the cam portion 56A is composed of a tapered surface 56B provided on the tip end side of the push rod 51. The driven portion 56C is a portion that makes sliding contact or rolling contact (sliding contact in the present embodiment) with the tapered surface 56B, and is a portion integrated with the bar member 53 as shown in FIG.

The driven portion 56C according to the present embodiment is composed of two triangular wall portions 56D and 56E. The two triangular wall portions 56D and 56E are provided at positions where the reinforcing wall 56F (see FIG. 11) is sandwiched from the width direction. The width direction is a direction orthogonal to the displacement direction of the central axis Lp and the bar member 53.

A gap portion 56G (see FIG. 11) is provided in the intermediate portion of the reinforcing wall 56F in the width direction. A return spring 54A (see FIG. 12) is housed in the gap portion 56G. The return spring 54A is a spring capable of exerting an elastic force (hereinafter, referred to as a return force) that displaces the bar member 53 toward the open position.

The return spring 54A according to the present embodiment is a tension coil spring as shown in FIG. One end of the return spring 54A is locked to the bar member 53, and the other end of the return spring 54A is locked to the push rod 51.

A regulating portion 56H is provided on each of the driven portion 56C, that is, the triangular wall portions 56D and 56E. The regulating portion 56H is a portion capable of sliding contact with the first regulated portion 51B and the second regulated portion 52B.

The first regulated portion 51B is a plane provided on the push rod 51 and is a plane intersecting the central axis Lp (orthogonal in the present embodiment). As a result, when the bar member 53 is in the open position, the bar member 53 is restricted from being displaced with respect to the push rod 51.

That is, the return spring 54A according to the present embodiment expands and contracts in a direction parallel to the tapered surface 56B. Therefore, in the elastic force exerted by the return spring 54A, in addition to the return force, a force that displaces the driven portion 56C in the retracting direction D2 is generated.

Then, when the regulated portion 56H comes into contact with the first regulated portion 51B, the regulated portion 56H contacts the first regulated portion 51B and the first regulated portion 51B functions as a stopper. Therefore, it is restricted that the bar member 53 is displaced with respect to the push rod 51.

The second regulated portion 52B slides into contact with the regulating portion 56H when the bar member 53 is displaced from the open position to the locked position. The second regulated portion 52B is provided in an immovable portion such as the rod casing 52.

The second regulated portion 52B is configured by a plane intersecting the central axis Lp (orthogonal in the present embodiment). When the regulating portion 56H is in contact with the second regulated portion 52B, it is regulated that the bar member 53 is displaced along the central axis Lp together with the push rod 51.

The second regulated portion 52B according to the present embodiment is provided inside the insertion hole 52A. Therefore, the inlet portion of the insertion hole 52A is configured in a stepped shape having the second regulated portion 52B.

<Lock device>
The lock device 7 exerts a function of holding the push rod 51 in the retracted position. Specifically, the lock device 7 has at least a lock rod 7A or the like, as shown in FIG.

The lock rod 7A is a member that can penetrate the rod casing 52 and fit into the recess 51C. The recess 51C is provided in the push rod 51. When the lock rod 7A is fitted into the recess 51C, the push rod 51 is in an immobile state.

That is, the rod casing 52 is fixed to the housing 9 as shown in FIG. The housing 9 is fixed to the vehicle. The lock rod 7A can be displaced between the position where it is fitted into the recess 51C and the position where it is separated from the recess 51C.

The lock rod 7A is integrated with the helical rack 7B. The helical rack 7B can be displaced in a direction orthogonal to the longitudinal direction of the rod casing 52. The helical rack 7B is displaced by obtaining a force from the helical gear 7C.

The helical gear 7C can rotate by obtaining a rotational force from the worm 7D. The worm 7D is rotationally driven by the electric motor 7E. The electric motor 7E according to the present embodiment, that is, the lock device 7, operates in conjunction with the locking device (not shown) of the door for getting on and off (not shown).

Specifically, in the electric motor 7E, the lock rod 7A fits into the recess 51C when the locking device is locked, and the lock rod 7A is released from the recess 51C when the locking device is unlocked. Operate.

3. 3. Operation of switchgear 3.1 Operation of alternation mechanism The alternation mechanism 55 displaces the push rod 51 between the protruding position and the retracted position each time a pressing force F acts on the push rod 51. When the push rod 51 is in the protruding position, the alternation mechanism 55 is in the state shown in FIG.

When the pressing force F acts on the push rod 51 in the state shown in FIG. 6, that is, the push rod 51 in the protruding position, the plurality of protrusions 55F and the plurality of protrusions 55G are each fitted in any of the plurality of groove portions 55J. , Displaces in the direction of the pressing force F, that is, the storage direction D2.

When each of the plurality of protrusions 55G reaches the open end in the extending direction of each groove 55J (see FIG. 15), each of the protrusions 55G rotates around the central axis Lp due to the rotational force Fr acting on the second cam 55C.

As a result, any of the protrusions 55G engages with any of the engagement protrusions 55K to enter an engaged state (see FIG. 7). At this time, the engaged state is maintained by the elastic force of the spring 55A, so that the push rod 51 is maintained in the retracted state.

When the pressing force F acts on the push rod 51 in the state shown in FIG. 7, that is, the push rod 51 in the retracted position, the second cam 55C is displaced in the retracting direction D2, and each protrusion 55G is disengaged from each engaging protrusion 55K.

At this time, due to the rotational force Fr acting on the second cam 55C, each protrusion 55G rotates around the central axis Lp along the guide portion 55N (see FIG. 15). Therefore, each protrusion 55G is guided to one of the groove 55Js at the open end in the extending direction.

Then, when the pressing force F disappears, the plurality of protrusions 55F and the plurality of protrusions 55G are displaced in the direction of protrusion D1 by the elastic force of the spring 55A while being fitted in any of the plurality of groove portions 55J. Therefore, the push rod 51 returns to the protruding position.

The guide portion 55N is an inclined surface provided at the end of the regulation cylinder 55D. The inclination of the guide portion 55N is the same as that of the inclined surfaces 55L and 55M. The top 55P of each protrusion 55G is configured with a smooth curved surface as shown in FIG.

3.2 Actuation of displacement mechanism When the push rod 51 is in the protruding position, the bar member 53 is in the open position as shown in FIG. When the pushing pressure F acts on the push rod 51 while the push rod 51 is in the protruding position, the bar member 53 and the push rod 51 are integrally displaced in the storage direction D2.

Then, when the regulating portion 56H comes into contact with the second regulated portion 52B (see FIG. 16), the bar member 53 is restricted from being displaced in the retracting direction D2, and at least a part of the pressing force F is the converting portion 56. Begins to be converted into operating force Fd.

As a result, the bar member 53 is displaced from the open position to the locked position as shown in the order of FIGS. 17 to 9. When the push rod 51 is in the retracted position, the bar member 53 is in the locked position, and the bar member 53 and the locked portion 3B are locked, so that the lid 3 is held at the position where the fuel filler port is closed. To.

When the pushing pressure F acts on the push rod 51 in the state shown in FIG. 9, the push rod 51 is displaced toward the protruding position as described above. At this time, the bar member 53 returns from the locked position to the open position by the elastic force of the return spring 54A.

4. Features of the lid opening / closing device according to the present embodiment The lid opening / closing device 1 includes at least one of the following constituent requirements.
That is, the constituent requirements are a push rod 51 that can be displaced between the protruding position and the storage position, and a lock position and an open position that can be displaced with respect to at least one of the push rod 51 and the rod casing 52. A barb member 53 that can be displaced between them, and a displacement mechanism 54 that displaces the barb member 53 by using a force that displaces the push rod 51 in a direction parallel to the central axis Lp.

As a result, in the lid opening / closing device 1, the bar member 53 is displaced between the lock position and the open position in mechanically interlocking with the displacement of the push rod 51 (FIGS. 8, FIG. 9, FIG. 16 and FIG. 17). reference). Therefore, the lid opening / closing device 1 has a configuration in which the driving device described in Patent Document 1 has been abolished. Therefore, it is possible to prevent the configuration of the lid opening / closing device 1 from becoming complicated.

The push rod 51 is provided with an alternation mechanism 55 that alternately displaces the push rod 51 between the protruding position and the retracted position each time the pressing force F acts on the push rod 51. This makes it possible to easily reciprocate the push rod 51.

The displacement mechanism 54 includes a conversion unit 56 that converts at least a part of the pressing force F into a force that displaces the bar member 53 from the open position side to the lock position side. As a result, the lid opening / closing device 1 can set the bar member 53 in the locked position.

The displacement mechanism 54 includes a return spring 54A capable of exerting an elastic force that displaces the bar member 53 toward the open position. As a result, the lid opening / closing device 1 can set the bar member 53 in the open position.

The conversion unit 56 has a cam portion 56A provided with the tapered surface 56B and a driven portion 56C that is in sliding contact with the tapered surface 56B. As a result, the lid opening / closing device 1 can reliably convert the pressing force F into the operating force Fd.

The conversion unit 56 has a regulation unit 56H capable of sliding contact with the second regulated portion 52B provided at an immovable portion, and when the regulation unit 56H is in contact with the second regulated portion 52B, the bar member 53 pushes. Displacement along the central axis Lp together with the rod 51 is restricted. As a result, the lid opening / closing device 1 can reliably convert the pressing force F into the operating force Fd.

The rod casing 52 is provided with an insertion hole 52A into which the push rod 51 is inserted so as to be able to appear and disappear, the second regulated portion 52B is provided inside the insertion hole 52A, and the inlet portion of the insertion hole 52A is provided. It is configured in a stepped shape having a second regulated portion 52B.

As a result, when the push rod 51 is in the retracted position, the tip end side of the push rod 51 can be stored in the rod casing 52 in a wide range. As a result, the push rod 51 and the bar member 53 can be protected by the rod casing 52.

(Second Embodiment)
The lid opening / closing device 1 according to the first embodiment has a configuration including one bar member 53. On the other hand, the lid opening / closing device 1 according to the present embodiment includes a plurality of (two in the present embodiment) bar members 53 as shown in FIGS. 18 and 19.

The following description is a description of differences from the lid opening / closing device 1 according to the above-described embodiment. The same constituent requirements and the like as those in the above-described embodiment are designated by the same reference numerals as those in the above-described embodiment. Therefore, in the present embodiment, the duplicate description is omitted.

The two bar members 53, that is, the first bar member 53A and the second bar member 53B are provided at symmetrical positions with the push rod 51 interposed therebetween. Along with this, the displacement mechanism 54 includes two conversion units 56, that is, a first conversion unit 561 and a second conversion unit 562.

The first conversion unit 561 and the second conversion unit 562 have a symmetrical configuration with the push rod 51 interposed therebetween. The configurations of the first conversion unit 561 and the second conversion unit 562 are the same as those of the conversion unit 56 according to the first embodiment. The return spring 54A according to the present embodiment is composed of a spring having a substantially rectangular frame shape.

In FIG. 18, the push rod 51 is in the protruding position, and the first bar member 53A and the second bar member 53B are in the open position. In FIG. 19, the push rod 51 is in the retracted position, and the first bar member 53A and the second bar member 53B are in the locked position.

(Third Embodiment)
The barb member 53 of the lid opening / closing device 1 according to the above-described embodiment is displaced between the locked position and the open position by being displaced in parallel with the push rod 51 in a direction substantially orthogonal to the central axis Lp. Met. On the other hand, the bar member 57 of the lid opening / closing device 1 according to the present embodiment has a configuration that allows rotational displacement between the locked position and the open position, as shown in FIGS. 20 and 21.

The following description is a description of differences from the lid opening / closing device 1 according to the above-described embodiment. The same constituent requirements and the like as those in the above-described embodiment are designated by the same reference numerals as those in the above-described embodiment. Therefore, in the present embodiment, the duplicate description is omitted.

<Overview of conversion unit>
The conversion unit 58 included in the displacement mechanism 54 according to the present embodiment provides at least a part of the force acting on the push rod 51 when the push rod 51 is displaced from the protrusion position side to the storage position side, and the bar member 53 is opened. It is converted into a force that causes rotational displacement from the side to the lock position side.

<Details of conversion unit>
As shown in FIG. 22, the bar member 57 is rotatably and displaceably supported by the rod casing 52 via the shaft portion 57A. The shaft portion 57A penetrates the bar member 57 and is mounted on the rod casing 52.

The central axis of the shaft portion 57A is in a twisted position with respect to the central axis Lp of the push rod 51. Therefore, the bar member 57 does not rotate around the central axis Lp of the push rod 51. The bar member 57 rotates around the central axis at a twisted position with respect to the central axis Lp.

The push rod 51 penetrates through the through hole 57B provided in the bar member 57 (see FIG. 26). The tip portion 57C of the bar member 57 is a portion of the bar member 57 that is locked to the locked portion 3B. The tip portion 57C is located on the side opposite to the shaft portion 57A with the push rod 51, that is, the through hole 57B interposed therebetween.

As shown in FIG. 22, the conversion unit 58 includes a contact portion 58A, a contact portion 58D, and the like. The contact portion 58A is rotationally displaced integrally with the bar member 57. The contact portion 58A is provided at a position of the bar member 57 deviated from the shaft portion 57A on the tip portion 57C side. The contacted portion 58D is provided on the push rod 51.

Specifically, the contact portion 58A is a portion provided on the wall surface of the through hole 57B on the shaft portion 57A side, and is an integrally molded portion integrally molded with resin together with the bar member 57. The contact portion 58A is composed of at least one protrusion protruding from the shaft portion 57A side toward the push rod 51 side.

The protrusion according to the present embodiment is composed of two protrusions 58B and 58C. The two protrusions 58B and 58C are arranged side by side in series along the rotation direction of the bar member 57. Therefore, the two protrusions 58B and 58C form a sector gear whose rotation center is the shaft portion 57A.

The contacted portion 58D comes into contact with the contacted portion 58A at least when the push rod 51 is displaced from the protruding position side to the retracted position side (see FIGS. 24 and 25). The contacted portion 58D is composed of at least one protruding portion protruding from the push rod 51 side toward the shaft portion 57A side.

The protrusion according to the present embodiment is composed of two protrusions 58E and 58F. The two protrusions 58E and 58F are arranged side by side in series along the storage direction D2. Therefore, the two protrusions 58E and 58F form a rack that meshes with the two protrusions 58B and 58C that form the sector gear.

The displacement mechanism 54 includes a return spring 54B. The return spring 54B can exert an elastic force that rotationally displaces the bar member 57 from the lock position side toward the open position side. The return spring 54B is composed of a torsion coil spring locked to a bar member 57 and a rod casing 52.

<Operation of displacement mechanism (conversion part)>
When the push rod 51 is in the protruding position, the bar member 57 is in the open position, as shown in FIG. When the pushing pressure F acts on the push rod 51 while the push rod 51 is in the protruding position, the push rod 51 is displaced in the retracting direction D2 (see FIG. 23).

Then, when the contact portion 58A comes into contact with the contact portion 58D, the bar member 57 is rotationally displaced from the open position to the lock position as shown in the order of FIGS. 24 → 25. When the push rod 51 is in the retracted position, the bar member 57 is in the locked position, and the bar member 57 and the locked portion 3B are locked, so that the lid 3 is held at the position where the fuel filler port is closed. To.

When the pushing pressure F acts on the push rod 51 in the state shown in FIG. 25, the push rod 51 is displaced toward the protruding position as described above. At this time, the bar member 57 returns from the locked position to the open position by the elastic force of the return spring 54B.

<Characteristics of the lid opening / closing device according to this embodiment>
The lid opening / closing device 1 according to the present embodiment includes at least one of the following constituent requirements.

That is, the constituent requirements are displaceable with respect to at least one of the push rod 51, the push rod 51 and the rod casing 52, which can be displaced between the protruding position and the retracted position, and cannot be locked with the lock position. A bar member 57 that can be displaced from the open position, and a displacement mechanism 54 that displaces the bar member 57 by using a force that displaces the push rod 51 in a direction parallel to the central axis Lp.

The bar member 57 can be rotationally displaced between the locked position and the open position, and the displacement mechanism 54 acts on the push rod 51 when the push rod 51 is displaced from the protruding position side to the stored position side. A conversion unit 58 is provided which converts at least a part of the force into a force that rotationally displaces the bar member 57 from the open position side to the lock position side.

The conversion unit 58 is provided at a position of the bar member 57 deviated from the rotation center of the bar member 57, and is provided on the contact portion 58A and the push rod 51 that are rotationally displaced integrally with the bar member 57. The push rod 51 has a contacted portion 58D that comes into contact with the abutting portion 58A when the push rod 51 is displaced from the protruding position side to the storage position side.

As a result, in the lid opening / closing device 1, the bar member 57 is displaced between the locked position and the open position in mechanically interlocking with the displacement of the push rod 51. Therefore, the lid opening / closing device 1 has a configuration in which the driving device described in Patent Document 1 has been abolished. Therefore, it is possible to prevent the configuration of the lid opening / closing device 1 from becoming complicated.

The contact portion 58A is composed of protrusions 58C and 58D protruding from the rotation center side toward the push rod 51 side, and the contacted portion 58D protrudes from the push rod 51 side toward the rotation center side. It is composed of protrusions 58E and 58F.

Further, the bar member 57 is rotatably supported by the rod casing 52, and the displacement mechanism 54 is a return capable of exerting an elastic force that rotationally displaces the bar member 57 from the lock position side to the open position side. A spring 54B is provided.

(Fourth Embodiment)
The lid opening / closing device 1 according to the third embodiment has a configuration including one bar member 57. On the other hand, the lid opening / closing device 1 according to the present embodiment includes a plurality of (two in the present embodiment) bar members 57 as shown in FIGS. 27 and 28.

The following description is a description of differences from the lid opening / closing device 1 according to the above-described embodiment. The same constituent requirements and the like as those in the above-described embodiment are designated by the same reference numerals as those in the above-described embodiment. Therefore, in the present embodiment, the duplicate description is omitted.

<Structure of conversion unit>
Similar to the conversion unit 58 according to the third embodiment, the conversion unit 59 according to the present embodiment is at least a part of the force acting on the push rod 51 when the push rod 51 is displaced from the protrusion position side to the storage position side. Is converted into a force that rotationally displaces the bar member 57 from the open position side to the lock position side.

As shown in FIG. 27, the bar member 57 according to the present embodiment is composed of a first bar member 571 and a second bar member 572. The first bar member 571 is arranged on the side opposite to the second bar member 572 with the push rod 51 interposed therebetween.

Each of the first bar member 571 and the second bar member 572 is rotatably and displaceably supported by the rod casing 52 via the shaft portion 57A. Each shaft portion 57A penetrates the bar member 57 and is mounted on the rod casing 52.

The push rod 51 is provided with a first tapered surface 59A that can come into contact with the first bar member 571 and a second tapered surface 59B that can come into contact with the second bar member 572. The first tapered surface 59A and the second tapered surface 59B are surfaces that are inclined with respect to the central axis Lp so as to be separated from the central axis Lp toward the protruding position side from the storage position side.

The first bar member 571 is provided with a first cam surface 59C that can come into contact with the first tapered surface 59A. The second bar member 572 is provided with a second cam surface 59D that can come into contact with the second tapered surface 59B.

The first cam surface 59C and the second cam surface 59D are configured to have a shape capable of converting the pressing force F into a rotational force. The rotational force is a force that rotationally displaces the first bar member 571 and the second bar member 572 to the locked position. Specifically, the first cam surface 59C and the second cam surface 59D are curved surfaces composed of convex curves such as a cycloid curve and an involute curve.

<Operation of displacement mechanism (conversion part)>
When the push rod 51 is in the protruding position, that is, when the first tapered surface 59A and the first cam surface 59C are not in contact with each other, and the second tapered surface 59B and the second cam surface 59D are not in contact with each other. The first bar member 571 and the second bar member 572 are each in the open position, as shown in FIG. 27.

When the pushing pressure F acts on the push rod 51 while the push rod 51 is in the protruding position, the push rod 51 is displaced in the retracting direction D2, so that the first tapered surface 59A and the first cam surface 59C come into contact with each other. However, the second tapered surface 59B and the second cam surface 59D come into contact with each other.

As a result, the pressing force F is converted into a rotational force that rotationally displaces the first bar member 571 and the second bar member 572. Therefore, as shown in FIG. 28, the first bar member 571 and the second bar member 572 , Rotationally displace from the open position to the locked position.

When the push rod 51 is in the retracted position, the contact state between the first tapered surface 59A and the first cam surface 59C and the contact state between the second tapered surface 59B and the second cam surface 59D are maintained, so that the first The bar member 571 and the second bar member 572 are held in the locked position.

When the push rod 51 returns to the protruding position, the holding force for holding the first bar member 571 and the second bar member 572 at the locked position disappears. Become.

The force that causes the first bar member 571 and the second bar member 572 to be in the open position is, for example, an elastic force due to an elastic member such as a spring (not shown), or acts on the first bar member 571 and the second bar member 572. It is a moment due to gravity.

(Other embodiments)
The lid opening / closing device 1 according to the above-described embodiment is an opening / closing device for a closed body that opens / closes a fuel filler port (not shown) of a vehicle. However, the inventions disclosed herein are not limited thereto. That is, the present invention is also applicable to other lid opening / closing devices (including those other than vehicles) such as an opening / closing device for a closed body that opens / closes a charging unit of an electric vehicle.

The alternation mechanism, displacement mechanism, and conversion unit according to the above-described embodiment are not limited to the configurations shown above. The alternation mechanism, the displacement mechanism, and the conversion unit may have configurations other than those shown above.

The bar members 53 and 57 according to the above-described embodiment can be displaced with respect to the push rod 51 and the rod casing 52. However, the inventions disclosed herein are not limited thereto. That is, in the present invention, for example, the bar member 53 may be configured to be displaceable with respect to the push rod 51 or the rod casing 52.

The driven portion 56C according to the above-described embodiment was a portion that slipped into contact with the tapered surface 56B. However, the inventions disclosed herein are not limited thereto. That is, the present invention may be configured such that, for example, a roller is provided on the driven portion 56C, and the driven portion 56C is in rolling contact with the tapered surface 56B by the roller.

In the electric motor 7E according to the above-described embodiment, the lock rod 7A fits into the recess 51C when the locking device is locked, and the lock rod 7A is released from the recess 51C when the locking device is unlocked. It worked. However, the inventions disclosed herein are not limited thereto.

Each of the contact portion 58A and the contacted portion 58D according to the third embodiment described above was composed of two protrusions. However, the inventions disclosed herein are not limited thereto. That is, in the present invention, for example, the abutting portion 58A and the abutted portion 58D may each be composed of one or three or more protrusions.

The lid opening / closing device 1 according to the above-described embodiment has a configuration in which the push rod 51 is displaced by using the alternation mechanism 55. However, the inventions disclosed herein are not limited thereto.

That is, in the present invention, for example, (a) a configuration in which the alternation mechanism 55 is abolished, (b) a configuration in which an actuator such as an electric motor that displaces the push rod 51 is provided in place of the alternation mechanism 55, (c). Alternatively, the alternation mechanism 55 may be provided with an operation cable that displaces the push rod 51.

Furthermore, the present disclosure is not limited to the above-described embodiment as long as it conforms to the gist of the invention described in the above-described embodiment. Therefore, either the configuration in which at least two embodiments of the plurality of embodiments described above are combined, or the configuration requirements shown in the illustration or the configuration requirements described with reference numerals in the above-described embodiment are abolished. It may be a configured configuration.

3 ... Lid body 3A ... Hinge part 3B ... Locked part 3C ... Locked body 3D ... Through hole 3E ... Pressing part 5 ... Rod device 5H ... Outer wall 7 ... Locking device 7A ... Lock bar 7B ... Helical rack 7C ... Helical gear 7D ... Worm 7E ... Electric motor 9 ... Housing 51 ... Push rod 51B ... 1st regulated part 51C ... Recess 52 ... Rod casing 52A ... Insertion hole 52B ... 2nd regulated part 53 ... Bar member 54 ... Displacement mechanism 55 ... Alternate mechanism 55B ... 1st cam 55C ... 2nd cam 55D ... Restriction cylinder 55E ... Shaft member

Claims (4)

In the lid opening and closing device that opens and closes the opening
A rod that displaces between the first and second positions,
A cylindrical casing having an insertion hole into which the rod can be inserted and removed,
A barb member that is displaceable with respect to the rod and the casing, and has a "locking position capable of locking with respect to the locked portion provided on the lid" and "with respect to the locked portion". A bar member that can be displaced between the "open position that cannot be locked" and
It is provided with a displacement mechanism that displaces the bar member by utilizing a force that displaces the rod in a direction parallel to the central axis of the rod.
The bar member can be rotationally displaced between the lock position and the open position.
The displacement mechanism
At least a part of the force acting on the rod when the rod is displaced from the first position side to the second position side is a force that rotationally displaces the barb member from the open position side to the lock position side. Equipped with a conversion unit to convert
When the position where a part of the rod protrudes from the casing is set as the protruding position and the position where at least a part of the rod is stored in the casing is set as the storage position.
The conversion unit
Among the bar members, a contact portion provided at a position deviated from the rotation center of the bar member and rotationally displaced integrally with the bar member, and a contact portion provided on the rod, and the rod is retracted from the protruding position side. A lid opening / closing device having a contacted portion that comes into contact with the contacted portion when displaced to the position side. The contact portion is composed of at least one protrusion protruding from the rotation center side toward the rod side.
The lid opening / closing device according to claim 1, wherein the contacted portion is composed of at least one protruding portion protruding from the rod side toward the rotation center side. The bar member is rotatably supported by the casing.
The lid opening / closing device according to claim 1 or 2, wherein the displacement mechanism includes a spring capable of exerting an elastic force that rotationally displaces the barb member from the lock position side toward the open position side. The lid opening / closing according to any one of claims 1 to 3, further comprising an alternation mechanism for alternating displacement of the rod between the first position and the second position each time a pressing force is applied to the rod. Device.

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