JP7489937B2 - Switchgear - Google Patents

Description

The present invention relates to an opening and closing device used for automobile fuel lids, charging port lids, etc.

2. Description of the Related Art Opening and closing devices used for a lid (fuel lid) that is a cover for a fuel filler opening of an automobile are known. Such opening and closing devices are provided on the inside of a vehicle body in correspondence with the lid.
The opening and closing device is equipped with a push rod that moves forward and backward, and the push rod is configured to alternate between a pushed-in position in which the lid is closed and a protruding position in which the lid is open each time the lid is pressed from the outside. A locking portion is provided at the tip of the push rod of the opening and closing device, and in the pushed-in position, the lid is locked with the locking portion of the push rod. In the protruding position, the lid is released from the locking portion of the push rod and can be opened.

Such an opening and closing device is provided with a restricting member (stopper) that restricts the forward and backward movement of the push rod and fixes it in a pushed-in position.
The restricting member is driven by an electric motor that can rotate in both directions. By applying an electric signal to the electric motor, it is possible to restrict or release the restriction on the movement of the push rod.
Furthermore, in order to deal with a breakdown or the like of the electric motor, an operating unit for releasing the restriction may be provided on the restricting member so that manual operation is possible. The operating unit is operated via an operating cable.

JP 2017-214766 A JP 2019-148160 A

Under normal circumstances, the operating parts of the opening and closing devices are not used and are used infrequently, so there is a demand for them to be compact so as not to take up space inside the vehicle.
However, there is a problem in that it is difficult to reduce the size of the configuration using an operating cable.

In addition, the fuel lid is sealed liquid-tight to prevent water from entering the fuel and to protect the electrical system, and the opening and closing device is installed on the inside of the vehicle, so rainwater cannot get in.
However, for example, when the temperature outside the vehicle is low and the humidity inside the vehicle is high, condensation may occur. In particular, the opening and closing device of the fuel lid is located at the boundary between the inside and outside of the vehicle, so it may be exposed to an environment where condensation is likely to occur. Since the inside of the fuel filler cap is covered with an interior board, it is usually difficult to check such a situation.
For this reason, conventionally, sufficient measures have not been taken to prevent water from entering the switchgear.

If condensed water gets into the drive section of the restricting member of the opening and closing device, dust attracted to the water will precipitate and solidify, or the water will freeze due to the low outside temperature, creating a risk that the restricting member will not be able to be released.

The present invention aims to provide a lid opening and closing device that is small, easy to operate, and can avoid problems caused by condensation.

The opening and closing device according to the present invention comprises:
An opening and closing device (100) used for opening and closing a lid (1) that is pivotally supported,
The device includes a push rod (5), a motor (16), a fixed member (15), a first housing portion (11), and a second housing portion (19),
The first housing portion (11) and the second housing portion (19) are combined to accommodate the push rod (5), the motor (16), and the fixed member (15);
A gear (17) is fitted to the output shaft (MS) of the motor (16),
The push rod (5) has a fitting hole (27), is alternately switchable between a pushed-in position and a protruding position, and has a locking portion (6) that locks the lid (1) in the pushed-in position;
The fixing member (15) has a screw hole (54), a fastener (51) and an operating lever (52),
The screw hole (54) of the fixing member (15) is screwed into the gear (17),
The gear (17) and the screw hole (54) convert the rotational motion of the motor (16) into a translational motion that moves the fixed member (15) in the direction of the output shaft (MS);
When the push rod (5) is in the pushed-in position, the fitting hole (27) and the fastener (51) face each other, and the fastener (51) is arranged so as to be insertable and detachable into the fitting hole (27) by the rotational movement of the motor (16);
The second housing portion (19) has a visor portion (53),
The visor portion (53) is characterized in that it is disposed on the upper part of the operating lever (52).

This configuration makes it possible to miniaturize the opening and closing device that can lock and unlock the lid, and even if a malfunction such as a breakdown occurs in the locking mechanism of the opening and closing device, the lock can be easily released by operating the operating lever, improving operability. It also makes it possible to eliminate the effects of water droplets caused by condensation.

Moreover, the opening and closing device according to the present invention comprises:
The gear (17) is characterized in that it is slidable along the output shaft (MS).

Moreover, the opening and closing device according to the present invention comprises:
The eaves portion (53) is characterized in that it is L-shaped when viewed from above.

Moreover, the opening and closing device according to the present invention comprises:
The first housing portion (11) is characterized in that it has a discharge opening (56) at the lower part of the eaves portion (53).

With this configuration, the load on the operating lever is reduced, operation by the operator's fingers is facilitated, and the operating lever can be easily visually confirmed.
In addition, water droplets due to condensation or the like can be prevented from remaining near the operating lever.

In addition, the opening and closing device according to the present invention further includes a bottom support portion (12),
The push rod (5) is accommodated in the accommodation space (13) of the first housing portion (11),
The bottom support portion (12) is located at the bottom of the storage space (13) and supports the push rod (5);
A sliding rotor (9) is rotatably connected to the end of the push rod (5),
The sliding rotor (9) has a side sliding guide portion (91) on the outer wall surface and a bottom sliding guide portion (92) on the bottom,
The inner wall of the accommodation space (13) has a switching guide (24) that guides the rotation of the sliding rotor (9) and on which the side sliding guide portion (91) slides,
The bottom support portion (12) guides the rotation of the sliding rotor (9) and is characterized by having a bottom inclined surface (23) on which the bottom sliding guide portion (92) slides.

This configuration improves the resistance of the push rod rotation mechanism when the lid is pressed.

The present invention provides a lid opening and closing device that is small, easy to operate, and can avoid problems caused by condensation.

Figure 1(A) is an oblique view of a fuel lid applied to a fuel filler opening, seen from outside the vehicle, Figure 1(B) is an oblique view of the fuel lid incorporated into the vehicle body, seen from the back (inside the vehicle), Figure 1(C) is a partial cross-sectional view of the fuel lid in a closed state, Figure 1(D) is a partial cross-sectional view of the fuel lid in an open state, and Figure 1(E) is a plan view showing the relationship between an engaging portion 6 and an engaged portion 7 of a push rod 5. FIG. 2 is an exploded perspective view showing the main components of the opening and closing device 100. As shown in FIG. 3(A) and 3(B) are a top view and a side view of the rotating slider 9, FIG. 3(C) is a cross-sectional view showing a schematic view of the inner wall surface of the accommodation space 13 of the main body 11, FIG. 3(D) is a development view of the inner wall surface of the accommodation space 13, and FIG. 3(E) is a partial enlarged view of the inner wall surface. FIG. 4 is a schematic diagram showing the relationship between the rotary slider 9 and the main body 11 and bottom support portion 12. As shown in FIG. 5A and 5B are cross-sectional views of the opening and closing device 100 when the push rod 5 is in the pushed-in position. Fig. 5A is a cross-sectional view of the push rod 5 when it is not fixed by the fixing mechanism, and Fig. 5B is a cross-sectional view of the push rod 5 when it is fixed by the fixing mechanism. Fig. 6(A) is a top view of the opening and closing device 100, and Fig. 6(B) is a side view of the opening and closing device 100. Fig. 6(C) is a side view of the eaves portion 53, and Fig. 6(D) is a top view of the eaves portion 53. Figure 7(A) is an enlarged oblique view of the vicinity of the eaves portion 53 when the push rod 5 is not fixed by the fixing member 15, Figure 7(B) is an enlarged oblique view of the vicinity of the eaves portion 53 when the push rod 5 is fixed by the fixing member 15, and Figure 7(C) is a cross-sectional view taken along line A-A in Figure 7(B).

The following describes embodiments of the present invention with reference to the drawings. However, none of the following embodiments should be interpreted in a restrictive manner in determining the gist of the present invention. In addition, the same reference symbols are used for identical or similar components, and descriptions may be omitted.

(Embodiment 1)
Below, an example of application of the opening and closing device to a fuel lid (a cover for a fuel filler port) will be described, but application to a power supply port is also possible.
Figure 1(A) is an oblique view of a fuel lid applied to a fuel filler opening, seen from outside the vehicle, Figure 1(B) is an oblique view of the fuel lid incorporated into a vehicle body, seen from the rear (inside the vehicle) side, Figure 1(C) is a partial cross-sectional view of the vicinity of the fuel lid in a closed state, Figure 1(D) is a partial cross-sectional view of the vicinity of the fuel lid in an open state, and Figure 1(E) is a plan view showing the relationship between an engaging portion 6 and an engaged portion 7 of a push rod 5.

As shown in FIG. 1(A), the fuel lid 1 (hereinafter simply referred to as the lid) is rotatably supported by a hinge 2, and when closed, it covers a panel opening 4 (a refueling opening) provided in the vehicle body 3 to prevent liquid from entering. A gasket made of, for example, resin is provided on the edge of the panel opening 4 to provide a liquid-tight seal.

The opening and closing device 100 is provided on the opposite side to the hinge 2 .
The opening and closing device 100 includes a push rod 5 that can be extended and retracted, and the push rod 5 can be alternately switched between a protruding position and a pushed-in position. A locking portion 6 is provided at the tip of the push rod 5, and a locked portion 7 that cooperates with the locking portion 6 is provided on the lid 1.
FIG. 1C shows a state in which the push rod 5 is retracted and located in a pressed-in position, and FIG. 1D shows a state in which the push rod 5 is extended and located in a protruding position.
The locked portion 7 has a locked hole 8 .

When the push rod 5 is in the pushed-in position as shown in Fig. 1(C), the longitudinal direction of the locking portion 6 and the longitudinal direction of the locking hole 8 (engagement hole) are perpendicular to each other as shown by the dotted line in Fig. 1(E). The locking portion 6 cannot pass through the locking hole 8, and the locking portion 6 locks the lid 1. Therefore, the lid 1 maintains the closed state.
When the push rod 5 is in the protruding position as shown in Fig. 1(D), the push rod 5 rotates 90°. As shown by the solid line in Fig. 1(E), the longitudinal direction of the locking portion 6 and the longitudinal direction of the locking hole 8 become parallel. The longitudinal length and the vertical length of the locking portion 6 are shorter than the longitudinal length and the vertical length of the locking hole 8, respectively, so that the locking portion 6 can pass through the locking hole 8. Therefore, the lid 1 becomes openable.

FIG. 2 is an exploded perspective view showing the main components of the opening and closing device 100. As shown in FIG.
The opening and closing device 100 comprises a push rod 5, a rotating slider 9 rotatably connected to the end of the push rod 5, a spring 10 that applies a biasing force to extend the push rod 5 and position it in the protruding position, a main body (first housing portion) 11 that houses and supports the push rod 5, and a bottom support portion 12 that is connected and fixed to the main body 11 and supports the end of the spring 10.
In the main body 11, the push rod 5 is housed in an accommodation space 13 having a circular cross section. The push rod 5 is sealed in the accommodation space 13 by a seal member 14 for fixing the push rod 5 in a liquid-tight manner.
The bottom support portion 12 is located at the bottom of the accommodation space 13 and supports the push rod 5 .

Furthermore, the opening and closing device 100 is equipped with a fixed member 15 (stopper) that fixes the position of the push rod 5 and restricts its movement, a motor 16 that drives the fixed member 15, a gear 17 (feed screw) that is fitted into the output shaft (rotating shaft) MS of the motor 16 and directly transmits rotational motion, a terminal 18 for connecting a power supply line that supplies electricity to the motor 16, and a cover (second housing portion) 19 that protects the motor 16, the fixed member 15, etc.
The main body 11 and the cover 19 are combined to form a housing that houses the motor 16, the push rod 5, the fixed member 15, and other components.

The fixing member 15 has a fastener 51 (fixing pin) for fixing the push rod 5, and further has an operating lever 52 for manually operating the fixing member 15.

The cover 19 has a visor portion 53 configured to cover the operating lever 52 of the fixed member 15. (See FIG. 6B.)

The push rod 5 has a cushion 20 (a shock-absorbing member) at its tip to prevent a direct collision between the inner wall surface of the lid 1 and the push rod 5 .
Only the lid 1 side of the cushion 20 is exposed, and the rest is surrounded by the main body 11. Therefore, the cushion 20 and the spring 10 are separated by the main body 11, and water does not infiltrate from around the cushion 20 into the spring 10.

The push rod 5 has a spirally inclined rotation guide portion 21 on its outer wall surface. The rotation guide portion 21 is used to rotate the push rod 5 as the push rod 5 extends and retracts.

The bottom support part 12 has a shaft 22 that supports the spring 10, and also has a bottom slope 23 that constitutes a cam mechanism for rotating the rotary slider 9 around the shaft 22 (support shaft).

FIG. 3 is a diagram illustrating a mechanism for switching the position of the push rod 5 alternately between a pushed-in position and an extended position.
3(A) and 3(B) are a top view and a side view of the rotating slider 9, FIG. 3(C) is a cross-sectional view showing a schematic view of the inner wall surface of the accommodation space 13 of the main body 11, FIG. 3(D) is a development view of the inner wall surface of the accommodation space 13, and FIG. 3(E) is a partial enlarged view of the inner wall surface.

As shown in FIG. 3A, the sliding rotor 9 connected to the end of the push rod 5 is annular and has a protrusion 91 (side sliding guide portion) on the outer circumferential wall.
As shown in FIG. 3B, the protrusion 91 viewed from the side has a first side sliding surface S91a (upper sliding surface) on the upper surface (push rod 5) side and second side sliding surfaces S91b on both circumferential sides of the protrusion 91.
On the other hand, the sliding rotor 9 has a sawtooth portion 92 (bottom sliding guide portion) at its bottom, and the sawtooth portion 92 has a bottom sliding surface S92 (lower sliding surface). The first side sliding surface S91a and the bottom sliding surface S92 have tapers in opposite directions (the signs of the inclination angles are opposite to each other).

As shown in FIG. 3(C), the inner wall surface of the storage space 13 of the main body 11 is provided with a groove-shaped switching guide 24 that guides the protrusion 91 and enables the position of the push rod 5 to be switched. The protrusion 91 of the sliding rotor 9 slides within the storage space 13 while being guided by the wall surface of the switching guide 24, and the push rod 5 moves while being guided by the sliding rotor 9.

As shown in FIG. 3D, the switching guide 24 includes a push-in guide portion 25 and a protruding guide portion 26 .
3D and 3E, the pushing guide portion 25 has a two-stage sliding surface composed of a first pushing guide sliding surface S25a and a second pushing guide sliding surface S25b. The first pushing guide sliding surface S25a and the second pushing guide sliding surface S25b have the same inclination angle as the first side sliding surface S91a of the sliding rotor 9. A step portion ST exists at the boundary between the first pushing guide sliding surface S25a and the second pushing guide sliding surface S25b, and the side wall surface of the step portion ST is parallel to the second side sliding surface S91b of the protrusion portion 91.
The protrusion guide portion 26 has a protrusion guide surface S26a and a stop surface S26b that are parallel to the longitudinal direction (movement direction of the push rod 5) of the push rod 5. The second side sliding surface S91b of the protrusion 91 is parallel to the protrusion guide surface S26a, and the first side sliding surface S91a is parallel to the stop surface S26b.

FIG. 4 is a schematic diagram showing the relationship between the rotary slider 9, the main body 11, and the bottom support portion 12. As shown in FIG.
4, the movement of the sliding rotor 9 rotatably connected to the push rod 5 will be described below. In the figure, S1 to S10 respectively indicate the states of the sliding rotor 9.
The following describes each of the states from S1 to S10 in order.
For the sake of visibility, the symbols may be omitted.

S1 state:
The push rod 5 is in the pushed-in position, and the first side sliding surface S91a of the protrusion 91 of the sliding rotor 9 is in contact with the first pushing guide sliding surface S25a.
S2 state:
When the lid 1 is pushed by an operator's hand, the push rod 5 and the sliding rotor 9 move accordingly. The bottom sliding surface S92 of the sliding rotor 9 comes into contact with the bottom inclined surface 23 of the bottom support portion 12.
S3 state:
The bottom sliding surface S92 and the bottom inclined surface 23 have the same inclination angle. Therefore, the bottom sliding surface S92 slides along the bottom inclined surface 23, and the sliding rotor 9 rotates.
S4 state:
When the operator releases the lid 1, the push rod 5 moves in the Y direction (projecting direction) in the figure due to the biasing force of the spring 10, and the first side sliding surface S91a of the sliding rotor 9 abuts against the second pushing guide sliding surface S25b.
S5 status:
The first side sliding surface S91a and the second pushing guide sliding surface S25b have the same inclination angle, so that the first side sliding surface S91a slides along the second pushing guide sliding surface S25b, and the sliding rotor 9 rotates.
S6 status:
The biasing force of the spring 10 is applied to the sliding rotor 9, and the sliding rotor 9 moves in the Y direction (projecting direction) in the figure while the second side sliding surface S91b slides along the protruding guide surface S26a. The first side sliding surface S91a abuts against the stop surface S26b and stops. In this state, the push rod 5 is located at the protruding position.
S7 status:
When the lid 1 is pushed by an operator's hand, the push rod 5 and the sliding rotor 9 move accordingly. The bottom sliding surface S92 of the sliding rotor 9 comes into contact with the bottom inclined surface 23 of the bottom support portion 12.
S8 Status:
Similar to S3, the bottom sliding surface S92 slides along the bottom inclined surface 23, and the sliding rotor 9 rotates.
S9 status:
When the operator releases the lid 1, the push rod 5 moves in the Y direction (projecting direction) in the figure due to the biasing force of the spring 10, and the first side sliding surface S91a of the sliding rotor 9 abuts against the first pushing guide sliding surface S25a.
S10 status:
The first side sliding surface S91a of the sliding rotor 9 and the first pushing guide sliding surface S25a have the same inclination angle. Therefore, the first side sliding surface S91a slides along the first pushing guide sliding surface S25a, and the sliding rotor 9 rotates. Then, the step portion ST comes into contact with the second side sliding surface S91b of the protrusion 91, and the rotation of the sliding rotor 9 stops. The state returns to S5.

The opening and closing device 100 is provided with a fixing mechanism for maintaining and fixing the pushed-in position of the push rod 5 .
The fixing mechanism will now be described with reference to FIG.
5A and 5B are cross-sectional views of the opening and closing device 100 when the push rod 5 is in the pushed-in position. Fig. 5A is a cross-sectional view of the push rod 5 when it is not fixed by the fixing mechanism, and Fig. 5B is a cross-sectional view of the push rod 5 when it is fixed by the fixing mechanism.

The fixing mechanism for the push rod 5 includes, as main components, a fixing member 15 , a motor 16 , and a gear 17 , and the fixing member 15 has a fastener 51 that is inserted into the fitting hole 27 of the push rod 5 .
When the push rod 5 is in the pushed-in position, the fitting hole 27 faces the fastener 51, and the output shaft MS of the motor 16, the fastener 51, and the fitting hole 27 are arranged on a straight line.
A through hole 28 is provided in the main body 11 between the push rod 5 and the fastener 51 .

A guide pin 30 that comes into contact with the rotation guide portion 21 of the push rod 5 is provided on the inner wall surface of the accommodation space 13 of the main body 11 .
When the push rod 5 extends and retracts (advances and retreats), the guide pin 30 slides on the rotation guide portion 21, rotating the push rod 5. The shape of the rotation guide portion 21 is adjusted so that the fitting hole 27 faces the fastener 51 in the pushed-in position.

When the fastener 51 is inserted into the fitting hole 27 in the pushed-in position, the push rod 5 is prevented from rotating and moving (advancing and retreating) and is fixed (locked). When the fastener 51 is removed from the fitting hole 27, the fixation of the push rod 5 is released and the push rod 5 can rotate and move.
In this way, the fastener 51 can be inserted into and removed from the fitting hole 27 by the rotational movement of the motor 16, and by inserting and removing the fastener 51 into and from the fitting hole 27, the push rod 5 can be fixed and released.

A gear 17, which is a feed screw, is fitted to the output shaft MS of the motor 16. The cross section of the output shaft MS is, for example, D-shaped, and the gear 17 is provided with a through hole having the same shape as the cross section of the output shaft MS, and is configured to transmit rotational motion.
In addition, the cross-sectional shape of the output shaft MS is not limited to a D-shape, and as long as the gear 17 and the output shaft MS are engaged with each other and the rotational motion of the output shaft MS is transmitted to the gear 17, the cross-sectional shape of the output shaft MS may be any shape.

The fixed member 15 has a threaded hole 54 that penetrates the fixed member 15 and screws into the gear 17, and functions as a feed nut (female screw) that screws into the gear 17, which is a feed screw (male screw). When power is supplied to the motor 16 and the output shaft MS rotates, the gear 17 rotates and the fixed member 15 moves in the axial direction of the output shaft MS. In other words, the combination of the fixed member 15 and the gear 17 converts the rotational motion into translational motion that advances and retreats (back and forth) in the direction of the output shaft MS. The direction and amount of movement of the output shaft MS can be controlled by the rotational direction and rotation speed of the motor 16.
The fixed member 15 translates in the direction of the output shaft MS due to the rotational motion of the motor 16 .

From the state shown in FIG. 5(A), the motor 16 can be driven to move the fixing member 15 toward the push rod 5, and the fastener 51 provided on the fixing member 15 can be fitted into the fitting hole 27 of the push rod 5 via the through hole 28 of the main body 11.

5B shows a state in which the fastener 51 is fitted into the fitting hole 27 of the push rod 5. In this state, the push rod 5 is fixed and the pushed-in position is maintained.
Thereafter, even if the supply of power to the motor 16 is stopped, the fastener 51 remains fitted in the fitting hole 27, so that the push rod 5 can remain fixed.
In this state, even if the lid 1 is pushed, the push rod 5 will not move, and the lid 1 cannot be opened.

Furthermore, by rotating the output shaft MS of the motor 16 in the opposite direction, the fixing member 15 moves in the opposite direction, the fastener 51 is pulled out of the fitting hole 27, and the push rod 5 can move. By pushing the lid 1, it becomes possible to open the lid 1.
The locking and unlocking of the push rod 5 can be controlled by a motor 16 .

The motor 16 may be driven in conjunction with a smart key (remote key). The locking and unlocking of the car door can be linked to the locking and unlocking of the lid 1 by the opening and closing device 100.

The fixed member 15 is provided with an operating lever 52. A lever opening 29 is provided in the main body 11, and a part of the operating lever 52 is exposed from the lever opening 29 to the outside.
An operator can operate the operating lever 52 with his/her finger, and can also manually move the fixing member 15. For example, if the motor 16 cannot be driven due to some kind of malfunction, the operator can operate the operating lever 52 and remove the fastener 51 from the fitting hole 27.

By combining the gear 17 and the fixed member 15, a compact opening and closing device 100 with good operability can be manufactured.

The gear 17 may be fixed to the output shaft MS, but may also be fitted and connected to the output shaft MS so as to be slidable in the direction of the output shaft MS without being fixed to the output shaft MS.
The length L11 (see FIG. 5B) of the accommodation region of the gear 17 is set to be longer than the length L17 (see FIG. 2) from the tip of the gear 17 to the flange portion 70.
The gear 17 is slidable in the axial direction of the output shaft MS and is also rotatable together with the output shaft MS.

When the fixed member 15 is moved by the operating lever 52, the fixed member 15, which is a feed nut, is moved to rotate the gear 17, which is a feed screw, and as a result, the output shaft MS is rotated. The contact area between the threads of the screw hole 54 of the fixed member 15 and the threads of the gear 17 is wide, and friction is large. In addition to the static friction between the fastener 51 and the fitting hole 27, the static friction between the fixed member 15 and the gear 17 is also applied at the same time, so a relatively large force is required when the operating lever 52 is initially moved. By fitting the gear 17 slidably to the output shaft MS, the gear 17 can be slid a predetermined amount (L11-L17) without rotating at the initial operation. This prevents two types of static friction from being applied at the same time, and reduces the load when the operating lever 52 is started to be operated. Furthermore, if the moving speed of the fixed member 15 is obtained, the load of the subsequent movement of the fixed member 15 can also be reduced, and the operability of the operating lever 52 can be improved.

Fig. 6(A) is a top view of the opening and closing device 100, and Fig. 6(B) is a side view of the opening and closing device 100. Fig. 6(C) is a side view of the eaves portion 53, and Fig. 6(D) is a top view of the eaves portion 53. Figs. 6(A) and 6(D) are views looking down from above in the vertical direction.
Figure 7(A) is an enlarged oblique view of the vicinity of the eaves portion 53 when the push rod 5 is not fixed by the fixing member 15, Figure 7(B) is an enlarged oblique view of the vicinity of the eaves portion 53 when the push rod 5 is fixed by the fixing member 15, and Figure 7(C) is a cross-sectional view along line A-A in Figure 7(B).

As shown in FIGS. 6A and 6B, a canopy portion 53 is provided on the upper portion of the operating lever 52.
The eaves portion 53 can be formed integrally with the cover 19 .
The visor portion 53 is provided separately and independently from an electrode protection portion 55 that entirely covers the terminal 18 of the motor 16 .

As shown in FIG. 6C, the cross section of the cover 19 is U-shaped so that the visor portion 53 covers the upper surface of the operating lever 52 .
6(D), the eaves portion 53 is L-shaped in top view with a protrusion T53, and has a thick edge E53 on the lever opening 29 side (left side in the figure) of the eaves portion 53. Therefore, even if water droplets are generated by condensation and fall on the eaves portion 53, they will not enter the operating lever 52.
As a result, it is possible to prevent the operating lever 52 from becoming inoperable due to freezing or solidification of dust.

As shown in FIG. 7A, when the push rod 5 is released from its fixed position, the operating lever 52 is accommodated under the protruding portion T53 of the canopy portion 53, and the upper portion is covered by the protruding portion T53.
Water droplets generated by condensation or the like are first received by the eaves portion 53 and fall downward along the side wall surface SW of the eaves portion 53. The main body 11 located below the eaves portion 53 has an inclined surface that faces diagonally downward to the right in the figure, and the water droplets flow down along the inclined surface.
A drain opening 56 (drain opening) may be provided below the eaves portion 53 of the main body 11 to prevent water droplets from (temporarily) accumulating and to allow them to flow off quickly.

To fix the push rod 5 by the fixing member 15, the operating lever 52 is moved in the direction of the arrow in FIG.
7B, when the push rod 5 is fixed by the fixing member 15, the operating lever 52 is not covered by the protruding portion T53 and can be easily visually confirmed from above. Therefore, by visually checking the operating lever 52, the operator can recognize that the push rod 5 is in the fixed state (locked state).
In addition, in this state, the side wall surface of the operating lever 52 is exposed, and the fixed push rod 5 can be easily released by operating the operating lever 52.

7C, the upper surface TS52 of the operating lever 52 may be tapered. By providing an inclination angle to the upper surface TS52, even if water droplets fall on the upper surface TS52 of the operating lever 52, the water droplets can be quickly run off.
Furthermore, in order to prevent water droplets from entering the inside of the opening/closing device 100 , protrusions 57 , 58 may be provided on the lower part of the eaves portion 53 from the surfaces of the cover 19 and the main body 11 toward the lever opening 29 , respectively.

In this way, the canopy portion 53 can prevent condensation without completely covering the operating lever 52, and the operability of the operating lever 52 can be ensured.
Furthermore, the operating lever 52 is disposed in a position that is immediately visible when viewed from above by the operator, and therefore can be easily operated.

The opening/closing device 100 according to the present invention has high resistance to the pushing operation of the push rod 5 accompanying the opening and closing of the lid 1. In addition, the fixing mechanism of the push rod 5 has a simple configuration, and the push rod can be directly unlocked by the operating lever 52, which allows the opening/closing device 100 to be made compact.
Furthermore, it is possible to prevent the operating lever 52 from becoming inoperable due to water droplets such as condensation on the lever.

The present invention provides an opening and closing device that is small, easy to operate, and can avoid the effects of condensation. This opening and closing device 100 can be applied not only to fuel filler ports, but also to charging ports. In addition, because it can be made compact, it can be applied to a variety of vehicles, and has high industrial applicability.

100 Opening and closing device 1 Lid
2 hinge 3 vehicle body 4 panel opening (opening for refueling)
5 Push rod 5
6: locking portion 7: locked portion 8: locked hole (engagement hole)
9 Rotary slider 10 Spring 11 Main body (first housing part)
12 Bottom support portion 13 Storage space 14 Sealing member 15 Fixing member (stopper)
16 Motor 17 Gear (feed screw)
18 Terminal 19 Cover (second housing part)
20 Cushion (buffer material)
21 Rotation guide portion 22 Shaft (support shaft)
23 Bottom inclined surface 24 Switching guide 25 Convex portion S25a First pushing guide sliding surface S25b Second pushing guide sliding surface 26 Concave portion 27 Fitting hole 28 Through hole 29 Lever opening 30 Guide pin 51 Fastener (fixing pin)
52 Operating lever 53 Eaves 54 Screw hole 55 Electrode protection section 56 Discharge opening (drain opening)
57, 58 Protrusion 70 Flange 91 Protrusion (side sliding guide)
92 sawtooth portion (bottom sliding guide portion)
S91 Side sliding surface (upper sliding surface)
S91a: First side sliding surface S91b: Second side sliding surface S92: Bottom sliding surface (lower sliding surface)
MS Output shaft (rotating shaft)
E53 Edge SW Side wall surface T53 Protrusion TS Top surface

Claims (5)

An opening and closing device (100) used for opening and closing a lid (1) that is pivotally supported,
The device includes a push rod (5), a motor (16), a fixed member (15), a first housing portion (11), and a second housing portion (19),
The first housing portion (11) and the second housing portion (19) are combined to accommodate the push rod (5), the motor (16), and the fixed member (15);
A gear (17) is fitted to the output shaft (MS) of the motor (16),
The push rod (5) has a fitting hole (27), is alternately switchable between a pushed-in position and a protruding position, and has a locking portion (6) that locks the lid (1) in the pushed-in position;
The fixing member (15) has a screw hole (54), a fastener (51) and an operating lever (52),
The screw hole (54) of the fixing member (15) is screwed into the gear (17),
The gear (17) and the screw hole (54) convert the rotational motion of the motor (16) into a translational motion that moves the fixed member (15) in the direction of the output shaft (MS);
When the push rod (5) is in the pushed-in position, the fitting hole (27) and the fastener (51) face each other, and the fastener (51) is arranged so as to be insertable and detachable into the fitting hole (27) by the rotational movement of the motor (16);
The second housing portion (19) has a visor portion (53),
The eaves portion (53) is L-shaped when viewed from above and has a protrusion (T53) on one end side.
The visor portion (53) is disposed on the upper portion of the operating lever (52) ,
When the fastener (51) is removed from the fitting hole (27), the protrusion (T53) is located at the top of the operating lever (52),
When the fastener (51) is inserted into the fitting hole (27), the protrusion (T53) is separated from the upper part of the operating lever (52), and the upper surface of the operating lever (52) is partially exposed.
A switching device (100). The opening and closing device according to claim 1, characterized in that the gear (17) is slidable along the output shaft (MS). 3. The opening and closing device according to claim 1, wherein the eaves portion (53) is formed integrally with the second housing portion (19) . The opening and closing device according to any one of claims 1 to 3, characterized in that the first housing part (11) has a discharge opening (56) at the lower part of the eaves part (53). Further comprising a bottom support (12),
The push rod (5) is accommodated in the accommodation space (13) of the first housing portion (11),
The bottom support portion (12) is located at the bottom of the storage space (13) and supports the push rod (5);
A sliding rotor (9) is rotatably connected to the end of the push rod (5),
The sliding rotor (9) has a side sliding guide portion (91) on the outer wall surface and a bottom sliding guide portion (92) on the bottom,
The inner wall of the accommodation space (13) has a switching guide (24) that guides the rotation of the sliding rotor (9) and on which the side sliding guide portion (91) slides,
The opening and closing device according to any one of claims 1 to 4, characterized in that the bottom support portion (12) has a bottom inclined surface (23) that guides the rotation of the sliding rotor (9) and on which the bottom sliding guide portion (92) slides.

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