JP7037084B2 - Closure opening and closing device for vehicles - Google Patents

Description

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

Patent Document 1 discloses an example of a conventional lid opening / closing device for a vehicle. This lid opening / closing device is provided between an opening provided in the vehicle body and a lid capable of opening / closing the opening. The lid can be displaced between an open position that opens the opening, a closed position that closes the opening, and a pushing position that is pushed from the closed position to the opposite side of the open position.

The lid switchgear comprises a housing, lock shaft, latch, pole, urging means, electric motor, drive shaft, worm gear and worm wheel. The housing is provided on the vehicle body.

The lock shaft has a linear motion shaft. The linear motion shaft extends about an axis passing through the opening. The linear motion shaft can reciprocate between the first position corresponding to the open position, the second position corresponding to the closed position, and the third position corresponding to the pushed position in the axial direction. Further, the linear motion shaft is non-rotatably supported by the housing around the axis and urged toward the first position.

The latch is connected to the linear motion shaft by the connecting shaft of the linear motion shaft and the connecting hole of the latch, and is swingably supported by the housing. The latch is formed with a latch surface and a convex portion. The pole is supported by the housing. The pole can swing between a block position that engages the latch surface and prohibits the linear shaft from moving from the second position to the first position, and an unblock position that is separated from the latch surface. Further, the pole is pushed by the convex portion of the latch while the linear motion shaft is moving from the first position to the second position and swings to the unblocked position, allowing the linear motion shaft to move to the second position. .. Further, an actuated portion is formed on the pole.

The urging means is urging the pole toward the block position. The electric motor is provided in the housing. The electric motor is supplied with power due to the opening operation for displacing the lid body in the open position to generate a driving force. The drive shaft is rotated by the driving force of the electric motor.

The worm gear is fixed to the drive shaft by press fitting or the like. The worm wheel is a separate member from the pole and can swing coaxially with the pole. The worm wheel is formed with an acting portion that can be brought into contact with and separated from the actuated portion of the pole.

In the conventional lid opening / closing device having the above configuration, when the lid is pushed from the open position to the pushed position, the linear motion shaft moves linearly to the third position. At this time, the pole is pushed by the convex portion of the latch while the linear motion shaft is moving from the first position to the second position, and swings from the block position to the unblock position while resisting the urging means. Allows the moving shaft to move to the second position. Then, after the linear motion shaft moves to the second position, the pole is urged by the urging means, swings from the unblocked position to the block position, engages with the latch surface of the latch, and passes through the latch. The linear motion shaft is prohibited from moving from the second position to the first position.

During this time, the worm wheel does not swing because the acting portion is separated from the acted portion.

On the other hand, in this lid opening / closing device, when there is an opening operation for displacing the lid to the open position, power is supplied to the electric motor due to the opening operation, and the drive shaft rotates integrally with the worm gear. As a result, the worm wheel that meshes with the worm gear swings while the acting portion is in contact with the acted portion, thereby swinging the pole to the unblocked position while resisting the urging means, and from the latch surface of the latch. Separate. Therefore, the linear motion shaft is urged from the second position and moves to the first position to displace the lid body in the open position.

Japanese Unexamined Patent Publication No. 2017-043939

By the way, it is conceivable to realize simplification of the conventional lid opening / closing device by providing a worm wheel on the pole and eliminating the actuated portion of the pole and the acting portion of the worm wheel.

However, in this case, when the lid is pushed from the open position to the push-in position and the linear motion shaft moves linearly to the third position, the following problems may occur.

That is, when the pole is pushed by the convex portion of the latch and swings from the block position to the unblock position, the resistance of the electric motor acts on the pole via the worm wheel and the worm gear. Therefore, the load acting on the gear teeth of the worm wheel and the worm gear may become excessive, causing problems such as breakage. As a result, it may be difficult to improve the durability of this lid opening / closing device.
Further, even when the pole is urged by the urging means and swings from the unblocked position to the block position after the convex portion has passed through the pole, the resistance of the electric motor acts on the pole via the worm wheel and the worm gear. do. Therefore, it may be difficult to quickly swing the pole to the block position. As a result, it may be difficult for this lid opening / closing device to improve the holding performance of holding the lid in the closed position.

The present invention has been made in view of the above-mentioned conventional circumstances, and can realize simplification, improvement of durability, and improvement of holding performance for holding the lid in the closed position. Providing equipment is an issue to be solved.

The vehicle lid opening / closing device of the present invention is a vehicle lid opening / closing device provided between an opening provided in a vehicle body and a lid that can open and close the opening.
The lid can be displaced between an open position that opens the opening, a closing position that closes the opening, and a pushing position that is pushed from the closed position to the side opposite to the open position.
The lid opening / closing device includes a housing provided on the vehicle body and a housing.
It extends around the axis passing through the opening, and in the direction of the axis, the first position corresponding to the open position, the second position corresponding to the closed position, and the third position corresponding to the pushing position. A lock shaft that is reciprocally supported by the housing and urged toward the first position,
A block position that is supported by the housing and prohibits the lock shaft from moving from the second position to the first position, and allows the lock shaft to move from the second position to the first position. It is swingable to and from the unblocked position, and while the lock shaft is moving from the first position to the second position, it swings to the unblocked position to the second position of the lock shaft. With a stopper that allows the movement of
An urging means for urging the stopper toward the block position,
An electric motor provided in the housing and supplied with power due to an opening operation for displacing the lid body to the open position, and an electric motor that generates a driving force.
A drive shaft that is rotated by the driving force of the electric motor,
A worm gear that is held by the drive shaft, can rotate integrally with the drive shaft, and can slide in the longitudinal direction of the drive shaft within a predetermined range.
The stopper is provided with a worm wheel that meshes with the worm gear and swings the stopper to the unblocked position by rotation of the drive shaft.

In the lid opening / closing device for a vehicle of the present invention, a worm wheel is provided on the stopper, and there is no equivalent between the actuated portion of the pole and the acting portion of the worm wheel according to the conventional lid opening / closing device.

Further, in this lid opening / closing device, when the lid is pushed from the open position to the push position and the lock shaft moves directly to the third position, the stopper first moves the lock shaft from the first position to the second position. While moving, it swings to the unblocked position while resisting the urging means, allowing the lock shaft to move to the second position. At this time, the worm gear that meshes with the worm wheel that swings together with the stopper slides in the longitudinal direction of the drive shaft within a predetermined range. The slide of the worm gear can prevent the resistance of the electric motor from acting on the stopper via the worm wheel and the worm gear. As a result, it is possible to prevent the load acting on the gear teeth of the worm wheel and the worm gear from becoming excessive and causing problems such as breakage.

Next, after the lock shaft moves to the second position, when the stopper is urged by the urging means and swings from the unblocked position to the block position, the worm gear that meshes with the worm wheel that swings with the stopper It slides in the longitudinal direction of the drive shaft within a predetermined range and in the opposite direction to the above. The reverse slide of the worm gear can prevent the resistance of the electric motor from acting on the stopper via the worm wheel and the worm gear. Therefore, the stopper can be quickly swung to the block position.

Therefore, the lid opening / closing device for a vehicle of the present invention can realize simplification, improvement of durability, and improvement of holding performance for holding the lid in the closed position.

The lock shaft extends about the center of the axis, is reciprocating between the first position, the second position, and the third position in the direction of the axis, and is non-rotatably supported by the housing around the center of the axis. It is supported by the linear motion shaft that is urged toward the first position, extends around the axis, can reciprocate in the axial direction, and is rotatably around the axis. When the moving shaft is in the 2nd or 3rd position, it rotates to the latch position where the lid is locked, while when the linear shaft is in the 1st position, it rotates to the unlatch position where the lid is not locked. It is desirable to have a moving shaft. It is desirable that the linear motion shaft is formed with an engaging portion that engages with the stopper. The stopper can be displaced between a block position that engages the engaging portion and prohibits the linear shaft from moving from the second position to the first position, and an unblocking position that separates from the engaging portion. Is desirable. It is desirable that the linear motion shaft has a pressing portion that presses the stopper while moving from the first position to the second position to swing the stopper to the unblocked position.

In this case, by configuring the stopper to engage with and separate from the engaging portion of the linear motion shaft, it is possible to further realize simplification, improvement of durability, and improvement of holding performance for holding the lid in the closed position. ..

It is desirable that the stopper is provided so as to be operable from the outside of the housing and integrally provided with a manual operation unit that displaces the stopper to the unblocked position by being operated.

In this case, when the electric actuator does not operate due to maintenance work or an abnormality such as a dead battery, the user operates the manual operation unit from the outside of the housing to swing the stopper to the unblocked position, thereby causing the lid. The body can be displaced to the open position. Then, in this case, the worm gear that meshes with the worm wheel that swings together with the stopper slides in the longitudinal direction of the drive shaft within a predetermined range. The slide of the worm gear can prevent the resistance of the electric motor from acting on the stopper via the worm wheel and the worm gear. As a result, it is possible to reduce the operating force on the manual operation unit of the user, and it is possible to suppress the occurrence of problems such as damage to the worm wheel and the worm gear due to the operating force of the user.

According to the lid opening / closing device for a vehicle of the present invention, it is possible to realize simplification, improvement of durability, and improvement of holding performance for holding the lid in a closed position.

FIG. 1 is a schematic partial cross-sectional view of a vehicle to which the lid opening / closing device for a vehicle of the embodiment is applied, showing a state in which the lid is in the open position and the linear motion shaft is in the first position. be. FIG. 2 is a schematic partial cross-sectional view similar to FIG. 1, showing a state in which the lid is in the closed position and the linear motion shaft is in the second position. FIG. 3 is a schematic partial cross-sectional view similar to FIG. 1, showing a state in which the lid is in the pushing position and the linear motion shaft is in the third position. FIG. 4 is a perspective view of a lid opening / closing device for a vehicle according to an embodiment. FIG. 5 is a top view showing the positional relationship between the linear motion shaft, the rotary shaft, the stopper, and the electric actuator. FIG. 6 is a bottom view showing the positional relationship between the linear motion shaft, the rotary shaft, the stopper, the electric actuator, the switch lever, and the switch. FIG. 7 is an exploded perspective view of a linear motion shaft, a rotary shaft, a stopper, an electric actuator, a switch lever, and a switch. 8 (a) to 8 (d) are schematic views illustrating the linked operation of the hook block of the linear motion shaft and the stopper. FIG. 9 is a schematic view illustrating the sliding operation of the worm gear, showing a state in which the linear motion shaft is in the first position and the stopper is in the block position. FIG. 10 is a diagram showing a state in which the linear motion shaft moves toward the second position, the stopper moves to the unblocked position, and the worm gear slides toward the electric motor from the state shown in FIG. .. In FIG. 11, from the state shown in FIG. 10, the linear motion shaft passes through the second position and moves to the third position, the stopper is urged by the compression coil spring to return to the block position, and the worm gear is separated from the electric motor. It is a figure which shows the state which slid so that. FIG. 12 is a diagram showing a state in which the linear motion shaft moves from the state shown in FIG. 11 to the second position and is held by the stopper at the block position. FIG. 13 shows a state in which the electric motor is operated and the stopper is moved to the unblocked position while the worm gear is separated from the electric motor from the state shown in FIG. 12, and the linear motion shaft is no longer held in the second position by the stopper. It is a figure which shows. FIG. 14 shows a state in which the linear motion shaft moves from the second position to the first position from the state shown in FIG. 13, the electric motor is stopped, and the stopper is urged by the compression coil spring to return to the block position. It is a figure. In FIG. 15, from the state shown in FIG. 12, the manual operation unit is operated to move the stopper to the unblocked position, the worm gear slides so as to approach the electric motor, and the linear motion shaft is held in the second position by the stopper. It is a figure which shows the state which is not done.

Hereinafter, examples embodying the present invention will be described with reference to the drawings.

(Example)
As shown in FIGS. 1 to 4, the vehicle lid opening / closing device 1 (hereinafter, simply referred to as “cover opening / closing device 1”) of the embodiment is a specific embodiment of the lid opening / closing device for a vehicle of the present invention. This is an example of an embodiment. The lid opening / closing device 1 is applied to vehicles such as automobiles, buses, and industrial vehicles. 1 to 3 show a part of the vehicle body 9 on the right side and the rear side.

The front-rear direction shown in FIGS. 1 to 3 is based on the front-rear direction of the vehicle. Further, in the vehicle inside / outside directions shown in FIGS. 1 to 3, the right side of the vehicle is the outside of the vehicle and the opposite side is the inside of the vehicle, that is, the passenger compartment side, with respect to the passengers inside the vehicle interior. The front side of the paper surface of FIGS. 1 to 3 is the upper side of the vehicle, that is, the roof side, and the back side of the paper surface of FIGS. 1 to 3 is the lower side of the vehicle, that is, the floor side. The front-rear direction, the vehicle interior / external direction, and the vertical direction shown in FIGS. 4 and 4 are displayed corresponding to FIGS. 1 to 3.

<Structure of car body opening, lid, etc.>
As shown in FIG. 1, the vehicle body 9 has a body panel 9A and an inner panel 9B. The body panel 9A constitutes the right side surface of the vehicle body 9. The inner panel 9B is arranged inside the vehicle with respect to the body panel 9A, and partitions the vehicle interior such as the trunk room.

The body panel 9A of the vehicle body 9 is provided with an opening 8. The opening 8 is a recess formed so that a part of the body panel 9A is recessed from the right side surface of the vehicle body 9 toward the inside of the vehicle, and is open on the right side surface of the vehicle body 9. The opening 8 has a bottom wall 8B and a support wall 7.

The bottom wall 8B extends in a substantially flat plate shape in the front-rear direction and the vertical direction, and forms the bottom surface of the opening 8. A refueling hole 8H is arranged in the center of the bottom wall 8B.

The support wall 7 extends in a substantially flat plate shape in the front-rear direction and the vertical direction at a position behind the bottom wall 8B and outside the vehicle, and forms a part of the inner wall surface of the opening 8. The support wall 7 is formed so that the insertion hole 7H penetrates through the support wall 7. The insertion hole 7H is a round hole centered on the axis X10. The axis X10 extends in and out of the vehicle and passes through the opening 8.

A substantially flat plate-shaped lid 5 is supported on the body panel 9A of the vehicle body 9 so as to be swingable around the opening / closing axis X5. The opening / closing axis X5 extends in the vertical direction along the opening edge on the front side of the opening 8. The lid 5 can swing between the open position shown in FIG. 1, the closed position shown in FIG. 2, and the pushed position shown in FIG.

The positions of the lid 5 shown by the solid line and the alternate long and short dash line in FIG. 1 are examples of open positions. By swinging the lid 5 to the open position, the rear end side is displaced to the outside of the vehicle from the outer surface of the body panel 9A, and the opening 8 is opened.

As shown in FIG. 2, by swinging the lid 5 to the closed position, the outer surface thereof becomes flush with the outer surface of the body panel 9A to form a part of the design surface of the vehicle body 9, and the opening thereof is formed. Block 8

As shown in FIG. 3, by swinging to the pushing position, the rear end side of the lid 5 is displaced to the inside of the vehicle from the outer surface of the body panel 9A and is pushed to the side opposite to the open position.

As shown in FIG. 2, a lid locking portion 4 including a pair of locking pieces 4A and 4B is fixed to a surface facing the inside of the vehicle on the rear end side of the lid 5. The front locking piece 4A and the rear locking piece 4B project toward the inside of the vehicle, then bend, and extend so as to approach each other in the front-rear direction.

The tip of the front locking piece 4A and the tip of the rear locking piece 4B face each other with a predetermined distance in the front-rear direction. With the lid 5 in the closed position, the axis X10 passes through an intermediate position between the tip of the front locking piece 4A and the tip of the rear locking piece 4B.

The inner panel 9B of the vehicle body 9 is provided with a maintenance opening 9M and an opening cover 9N. The maintenance opening 9M is formed behind the lubrication hole 8H in the inner panel 9B. The maintenance opening 9M penetrates the inner panel 9B with a size that allows the lid opening / closing device 1 to pass through.

The opening cover 9N is detachably attached to the inner panel 9B to close the maintenance opening 9M. The opening cover 9N is removed by an operator when performing work such as attachment / detachment and maintenance of the lid opening / closing device 1. As a result, the operator can easily perform the above work by inserting his / her hand into the space between the body panel 9A and the inner panel 9B from the open maintenance opening 9M.

<Structure of lid opening / closing device>
As shown in FIGS. 1 to 3, the lid opening / closing device 1 is provided between the opening 8 and the lid 5, and is for opening / closing the lid 5. The lid opening / closing device 1 includes a housing 90 shown in FIGS. 1 to 4, a linear motion shaft 10 shown in FIGS. 5 to 15, a rotating shaft 30 shown in FIGS. 1 to 7, and a compression coil spring shown in FIG. The 10S, the stopper 50 shown in FIGS. 5 to 15, and the compression coil spring 50S shown in FIGS. 7 and 9 to 15 are provided.

The linear motion shaft 10 and the rotary shaft 30 are examples of the "lock shaft" of the present invention. The compression coil spring 50S is an example of the "urging means" of the present invention.

Further, the lid opening / closing device 1 includes an electric actuator 60 shown in FIGS. 5 to 7 and 9 to 15, and a switch lever 70 and a switch SW1 shown in FIGS. 6 and 7.

<Housing>
As shown in FIG. 1, the housing 90 is provided on the vehicle body 9 by being fastened to a fixing member (not shown) arranged between the body panel 9A and the inner panel 9B of the vehicle body 9. As shown in FIGS. 1 and 4, the housing 90 has a housing body 91 and a housing case 92.

The housing body 91 is a substantially box-shaped body having an open surface side facing the inside of the vehicle. A cylindrical guide 91A is formed on the front portion of the housing body 91 facing the outside of the vehicle. The tubular guide 91A has a cylindrical shape centered on the axis X10 and projects toward the outside of the vehicle.

As shown in FIG. 1, the inner peripheral surface of the tubular guide 91A is a guide surface 91G for allowing the linear motion shaft 10 and the rotary shaft 30 to reciprocate in the axial center X10 direction. Further, inside the housing body 91, a guide projection 91J for making the rotating shaft 30 rotatable around the axis X10 is formed.

As shown in FIGS. 1 and 4, the housing case 92 is assembled to the surface side of the housing body 91 facing the inside of the vehicle. The housing case 92, together with the housing body 91, partitions the accommodation space of the housing 90.

The accommodation space of the housing 90 accommodates a part of the linear motion shaft 10 and the rotary shaft 30 located inside the vehicle, a compression coil spring 10S, a stopper 50, a compression coil spring 50S, an electric actuator 60, a switch lever 70, and a switch SW1. Has been done.

As shown in FIG. 1, a shaft-shaped guide 92A for allowing the linear motion shaft 10 to reciprocate in the axial center X10 direction is formed in the front portion of the housing case 92. The axial guide 92A has a cylindrical axial shape centered on an axial center that is offset from the axial center X10 and extends in parallel with the axial center X10, and projects toward the outside of the vehicle in the housing 90.

Although not shown, the compression coil spring 10S shown in FIG. 7 is extrapolated to the shaft-shaped guide 92A. Although not shown, the housing case 92 is formed with a plurality of holding portions for holding the stopper 50, the compression coil spring 50S, the electric actuator 60, the switch lever 70, and the switch SW1 shown in FIG. 7 together with the housing body 91. There is.

As shown in FIG. 4, the housing case 92 is formed so that an elongated hole 92H extending in the front-rear direction penetrates in and out of the vehicle. The elongated hole 92H is closed by the rubber cap 92C shown in FIGS. 1 and 4.

<Direct acting shaft and rotating shaft>
As shown in FIGS. 5 to 7, the linear motion shaft 10 has a linear motion shaft main body 11 and a hook block 20.

The linear motion shaft main body 11 is a substantially cylindrical shaft extending around the axis X10. The end portion of the linear motion shaft main body 11 located on the opposite side of the lid 5 in the axial center X10 direction, that is, inside the vehicle is referred to as the base end portion 11H. The tip of the linear motion shaft main body 11 is an end portion of the linear motion shaft body 11 located on the lid 5 side in the axis X10 direction, that is, on the outside of the vehicle.

A flange portion 11F is formed at the tip of the linear motion shaft main body 11. The flange portion 11F protrudes in a flange shape in the out-of-diameter direction of the axis X10 from the other portion of the linear motion shaft main body 11.

Further, a cushioning portion 81 and a sealing portion 83 are provided at the tip of the linear motion shaft main body 11. The cushioning portion 81 and the sealing portion 83 are made of a material softer than the resin material constituting the other parts of the linear motion shaft main body 11, for example, rubber, elastomer, or soft resin.

The cushioning portion 81 projects toward the outside of the vehicle, that is, toward the lid 5, with respect to the flange portion 11F. The sealing portion 83 is formed in an annular shape around the axis X10 inside the vehicle from the flange portion 11F.

The hook block 20 is a substantially block-shaped resin member that is fixed to the base end portion 11H of the linear motion shaft main body 11 and can move integrally with the linear motion shaft main body 11. As shown in FIG. 7, the hook block 20 is formed with a shaft-shaped guide insertion hole 22, an engaging portion 25, a pressing portion 28, and an acting portion 27.

The shaft-shaped guide insertion hole 22 is a round hole that penetrates a portion of the hook block 20 that is separated downward and forward from the linear motion shaft main body 11 in a direction parallel to the axis X10.

Although not shown, the linear guide 92A shown in FIG. 1 is inserted through the shaft guide insertion hole 22, so that the linear motion shaft 10 is supported by the housing 90 so as to be reciprocating in the axial center X10 direction. ing.

Further, since the shaft-shaped guide insertion hole 22 and the shaft-shaped guide 92A are offset with respect to the shaft center X10, the linear motion shaft 10 is non-rotatably supported by the housing 90 around the shaft center X10.

The compression coil spring 10S shown in FIG. 7 has the shaft-shaped guide 92A shown in FIG. 1 inserted through the shaft-shaped guide insertion hole 22, so that the outer end of the vehicle comes into contact with the hook block 20. As a result, the compression coil spring 10S urges the linear motion shaft 10 toward the outside of the vehicle.

As shown in FIGS. 7 and 8, the engaging portion 25 is an inclined surface that is formed in a portion of the hook block 20 that is displaced rearward from the linear motion shaft main body 11 and faces the outside of the vehicle. The engaging portion 25 is inclined so as to shift toward the inside of the vehicle toward the rear.

The pressing portion 28 is connected to the rear end of the engaging portion 25. The pressing portion 28 is a bent surface that extends toward the inside of the vehicle while facing rearward, then bends, and extends inside and toward the front of the vehicle.

As shown in FIG. 7, the acting portion 27 is a convex portion protruding rearward from a portion of the hook block 20 separated downward from the linear motion shaft main body 11.

The rotating shaft 30 is a resin member that extends substantially in a cylindrical shape about the axis X10. A spiral groove 30J is recessed on the outer peripheral surface of the rotating shaft 30. The spiral groove 30J extends spirally around the axis X10.

The tip of the rotating shaft 30 is the end portion of the rotating shaft 30 located on the lid 5 side in the axis X10 direction, that is, on the outside of the vehicle, and has a smaller diameter than the other parts of the rotating shaft 30. Latch protrusions 34A and 34B are formed at the tip of the rotating shaft 30. The latch protrusions 34A and 34B are substantially plate-shaped protrusions that protrude in the out-of-diameter direction of the axis X10 so as to be separated from the tip of the rotating shaft 30.

As shown in FIGS. 5 and 6, the linear motion shaft main body 11 is inserted into the rotary shaft 30 to rotatably support the rotary shaft 30 around the axis X10. The flange portion 11F of the linear motion shaft main body 11 and the hook block 20 sandwich the rotary shaft 30 in the vehicle interior / external direction, so that the rotary shaft 30 is prevented from coming off with respect to the linear motion shaft body 11. The sealing portion 83 of the linear motion shaft main body 11 seals the gap between the linear motion shaft main body 11 and the rotary shaft 30 by abutting in the rotating shaft 30 in an annular shape, and the housing passes through the gap. It is designed to prevent foreign matter from entering the 90.

As shown in FIGS. 1 to 3, the rotating shaft 30 is inserted into the tubular guide 91A of the housing 90 in a state of being extrapolated to the linear motion shaft 10. Although not shown, the guide protrusion 91J of the housing 90 projects into the spiral groove 30J of the rotating shaft 30.

The linear motion shaft 10 and the rotary shaft 30 are supported by the housing 90 so as to be reciprocating in the axial center X10 direction by guiding the outer peripheral surface of the rotary shaft 30 to the guide surface 91G of the cylindrical guide 91A. ..

As described above, the linear motion shaft 10 can be reciprocated in the axial center X10 direction and is non-rotatably supported by the housing 90 by the axial guide insertion hole 22 and the axial guide 92A. ..

On the other hand, the rotary shaft 30 is rotatably supported by the linear motion shaft main body 11, and the guide projection 91J projects into the spiral groove 30J so that the rotary shaft 30 can reciprocate together with the linear motion shaft 10 in the axial center X10 direction. At the same time, it is rotatably supported by the housing 90 around the axis X10.

The linear motion shaft 10 reciprocates between the first position shown in FIG. 1, the second position shown in FIG. 2, and the third position shown in FIG.

As shown in FIG. 1, the first position is a position corresponding to the open position of the lid 5. The linear motion shaft 10 projects toward the outside of the vehicle while being in the first position. The positions of the linear motion shaft 10 shown in FIGS. 5, 6, 8 (a) and 9 are also the first positions.

As shown in FIG. 2, the second position is a position corresponding to the closed position of the lid 5. The linear motion shaft 10 is retracted toward the inside of the vehicle in the state of being in the second position, and its tip is inserted between the locking piece 4A and the locking piece 4B of the lid locking portion 4 and closed. The cushioning portion 81 is brought into contact with the surface of the lid 5 at the position facing the inside of the vehicle. The position of the linear motion shaft 10 shown in FIGS. 8 (d), 12, 13, and 15 is also the second position.

As shown in FIG. 3, the third position is a position corresponding to the pushing position of the lid body 5. In the state where the linear motion shaft 10 is in the third position, the cushioning portion 81 at the tip thereof is in contact with the surface of the lid 5 in the pushing position facing the inside of the vehicle, and the inside of the opening 8 is inside the opening 8 rather than the second position. Evacuate deeply. The position of the linear motion shaft 10 shown in FIGS. 8 (c) and 11 is also the third position.

The linear motion shaft 10 is urged toward the first position shown in FIG. 1 by the compression coil spring 10S shown in FIG. 7.

The rotating shaft 30 rotates to the latch position shown in FIGS. 2 and 3 if the linear motion shaft 10 is in the second position or the third position. In the state where the rotating shaft 30 is in the latch position, the latch protrusion 34A is projected forward to lock the locking piece 4A of the lid locking portion 4, and the latch protrusion 34B is projected backward to lock the lid. The locking piece 4B of the locking portion 4 is locked. In this way, the rotating shaft 30 at the latch position locks the lid 5 to the closed position or the pushed position. The position of the rotating shaft 30 shown by the solid line in FIG. 4 is also the latch position.

On the other hand, the rotating shaft 30 rotates to the unlatch position shown in FIG. 1 if the linear motion shaft 10 is in the first position. In the state where the rotating shaft 30 is in the unlatch position, the latch protrusion 34A is projected upward to be separated from the locking piece 4A of the lid locking portion 4, and the latch protrusion 34B is downward, although not shown. It is projected so as to be separated from the locking piece 4B of the lid locking portion 4. In this way, the rotating shaft 30 at the unlatch position does not lock the lid 5. The position of the rotating shaft 30 shown by the alternate long and short dash line in FIGS. 4 to 6 is also an unlatch position.

<Stopper>
As shown in FIGS. 5 to 8, the stopper 50 is a resin member in which a swing shaft portion 51, a worm wheel 56, a stopper surface 55, a manual operation portion 59, and a spring receiving portion 53 are integrally formed.

The swing shaft portion 51 is supported by the housing 90 so as to be swingable around the swing shaft center X50 extending in the vertical direction.

The worm wheel 56 has a plurality of gear teeth formed along an arc of a fan-shaped portion protruding from the upper portion of the swing shaft portion 51 toward the inside of the vehicle.

The stopper surface 55 is formed in a substantially block-shaped portion that protrudes from the lower portion of the swing shaft portion 51 toward the inside of the vehicle. The stopper surface 55 is a curved surface facing the inside of the vehicle while being curved so as to draw an arc centered on the swing axis X50.

The manual operation unit 59 is connected to a portion displaced upward and backward with respect to the stopper surface 55 in the substantially block-shaped portion protruding from the lower portion of the swing shaft portion 51 toward the inside of the vehicle. The manual operation unit 59 extends toward the inside of the vehicle while bending in a crank shape.

As shown in FIG. 4, the tip of the manual operation unit 59 passes through the elongated hole 92H of the housing case 92 and protrudes to the outside of the housing 90, and is covered with the rubber cap 92C as shown in FIG. There is. The stopper 50 can be manually swung by the user moving the manual operation unit 59 while crushing the rubber cap 92C. That is, the manual operation unit 59 is provided so as to be operable from the outside of the housing 90.

As shown in FIGS. 5 to 8, the spring receiving portion 53 is a convex portion formed at a position rearward from the swing shaft portion 51 and separated from the inside of the vehicle and protruding toward the outside of the vehicle. As shown in FIGS. 7 and 9, the spring receiving portion 53 locks the end portion inside the vehicle of the compression coil spring 50S. The compression coil spring 50S urges the stopper 50 in a direction in which the stopper surface 55 is displaced forward.

The stopper 50 can swing between the block position shown by the solid line in FIG. 8 (d) and the unblock position shown by the alternate long and short dash line in FIG. 8 (d).

The stopper surface 55 engages with the engaging portion 25 formed in the hook block 20 of the linear motion shaft 10 at the second position in the state where the stopper 50 is in the block position shown by the solid line in FIG. 8 (d). , The linear motion shaft 10 is prohibited from moving from the second position to the first position. The positions of the stoppers 50 shown in FIGS. 5, 6, 8 (a), 8 (c), 9, 11, 12, and 14 are also block positions.

The stopper surface 55 is separated from the engaging portion 25 formed in the hook block 20 of the linear motion shaft 10 at the second position in the state where the stopper 50 is in the unblocked position shown by the alternate long and short dash line in FIG. 8 (d). Then, the linear motion shaft 10 is allowed to move from the second position to the first position. The positions of the stoppers 50 shown in FIGS. 8B, 10, 13 and 15 are also unblocked positions.

The stopper 50 is urged toward the block position by the compression coil spring 50S.

<Electric actuator>
As shown in FIGS. 5 to 7 and 9, the electric actuator 60 has an electric motor 61, a drive shaft 62, and a worm gear 66 housed in the housing 90.

The electric motor 61 is an inexpensive DC motor, and is connected to a control unit (not shown) mounted in the vehicle by a wire harness W1 shown in FIG. The electric motor 61 generates a driving force by being fed by a control unit (not shown).

The drive shaft 62 is fixed to a rotor (not shown) in the electric motor 61 and projects forward from the electric motor 61. The longitudinal direction of the drive shaft 62 is the front-rear direction. As shown in FIGS. 7 and 9, the drive shaft 62 is formed with a first shaft portion 62A and a second shaft portion 62B.

The first shaft portion 62A is a portion of the drive shaft 62 near the electric motor 61 side, and has a cylindrical outer peripheral surface. The second shaft portion 62B is a portion of the drive shaft 62 far from the electric motor 61, and has a outer peripheral surface having a D-shaped cross section in which a part of the cylindrical outer peripheral surface is changed to a flat surface. It extends longer than 62A.

The drive shaft 62 is rotated by the driving force of the electric motor 61. When the electric motor 61 is not supplied with power, the holding force of the electric motor 61 with respect to the drive shaft 62 does not act, but when the drive shaft 62 rotates in that state, the resistance of the electric motor 61 acts on the drive shaft 62.

The worm gear 66 is a resin member on which spiral gear teeth are formed. As shown in FIG. 9, the worm gear 66 is formed with a first shaft hole portion 66A and a second shaft hole portion 66B.

The first shaft hole portion 66A has a cylindrical inner peripheral surface that is recessed forward from the rear end of the worm gear 66 and is aligned with the outer peripheral surface of the first shaft portion 62A. The second shaft hole portion 66B is connected to the first shaft hole portion 66A in the worm gear 66 and is recessed forward toward the front end of the worm gear 66, and has a D-shaped cross section aligned with the outer peripheral surface of the second shaft portion 62B. It has an inner peripheral surface and extends longer than the first shaft hole portion 66A.

The worm gear 66 is held by the drive shaft 62 by inserting the first shaft portion 62A and the second shaft portion 62B into the first shaft hole portion 66A and the second shaft hole portion 66B, and is held by the worm wheel 56 of the stopper 50. It is meshing.

The worm gear 66 can rotate integrally with the drive shaft 62 because the second shaft hole portion 66B has the same D-shaped cross section as the second shaft portion 62B. Further, in the worm gear 66, the first shaft hole portion 66A and the second shaft hole portion 66B are set slightly larger than those of the first shaft portion 62A and the second shaft portion 62B, so that the worm gear 66 is set in the longitudinal direction of the drive shaft 62. It is slidable.

As shown in FIGS. 9 to 15, the facing wall 90M is arranged in front of the worm gear 66 in the housing 90. The facing wall 90M defines the forward slide limit of the worm gear 66 by abutting the front end of the worm gear 66 when the worm gear 66 slides forward so as to be separated from the electric motor 61.

The facing wall 90N is arranged at a position in the housing 90 behind the worm gear 66 and adjacent to the electric motor 61. The facing wall 90N is formed with a notch recessed from the inner edge of the vehicle toward the outside of the vehicle, and the drive shaft 62 is inserted through the notch. The facing wall 90N defines a backward slide limit of the worm gear 66 by abutting the rear end of the worm gear 66 when the worm gear 66 slides backward so as to approach the electric motor 61.

That is, assuming that the range sandwiched between the front facing wall 90M and the rear facing wall 90N is a predetermined range E1, the worm gear 66 can slide in the longitudinal direction of the drive shaft 62 within the predetermined range E1.

The electric actuator 60 is fed to the electric motor 61 by a control unit (not shown), and as shown in FIG. 13, the driving force of the electric motor 61 is applied to the stopper 50 via the drive shaft 62, the worm gear 66 and the worm wheel 56. To convey. At this time, the worm gear 66 receives a reaction force when transmitting the driving force from the worm wheel 56, and drives and rotates with its front end in contact with the facing wall 90M. As a result, the stopper 50 swings from the block position shown by the solid line in FIG. 8D to the unblocked position shown by the alternate long and short dash line in FIG. 8D against the urging force of the compression coil spring 50S.

When the electric actuator 60 is no longer supplied with power to the electric motor 61, the holding force does not act on the drive shaft 62 and the worm gear 66. Therefore, as shown in FIG. 14, the stopper 50 is positioned at the block position by the urging force of the compression coil spring 50S. Allow to return to. At this time, the worm gear 66 is urged in the swinging direction of the stopper 50 and the worm wheel 56, and the front end thereof is in contact with the facing wall 90M, and the worm gear 66 is driven to rotate by meshing with the worm wheel 56.

As will be described later, in the worm gear 66, as shown in FIG. 10, the stopper 50 is pressed against the pressing portion 28 formed in the hook block 20 of the linear motion shaft 10 that moves from the first position to the second position. By moving to the unblocked position, the drive shaft 62 slides backward in the longitudinal direction. Further, as shown in FIG. 15, the worm gear 66 slides backward in the longitudinal direction of the drive shaft 62 even when the manual operation portion 59 is pushed backward and the stopper 50 swings to the unblocked position. ..

<Switch lever and switch>
As shown in FIGS. 6 and 7, the switch lever 70 and the switch SW1 are arranged in the housing 90 below the electric motor 61 and the worm gear 66.

The switch lever 70 is a resin member in which a swing shaft portion 71, a passive portion 77, and a switching portion 75 are integrally formed. The swing shaft portion 71 is supported by the housing 90 so as to be swingable around the swing shaft center X70 extending in the vertical direction.

As shown in FIG. 7, the passive portion 77 is a cylindrical shaft that projects downward from the tip of a plate-shaped portion that extends forward from the swing shaft portion 71. The switching portion 75 is two cylindrical shafts that project upward from two positions at the tips of the plate-shaped portions that extend backward from the swing shaft portion 71 and are separated from each other in the vehicle internal and external directions.

The switch lever 70 is urged around the swing axis X70 by a torsion coil spring (not shown) in the counterclockwise direction of the paper surface of FIG.

As shown in FIG. 7, the switch SW1 has a movable protrusion SW1A. The movable protrusion SW1A protrudes forward from the front surface of the switch SW1 and is sandwiched between two cylindrical shafts of the switching portion 75 in the vehicle internal / external direction.

The switch SW1 is pushed by the switching portion 75 of the switch lever 70 in which the movable protrusion SW1A swings and is displaced in the inward / outward direction of the vehicle, so that the switch SW1 switches between the cutoff state and the connected state. Like the electric motor 61, the switch SW1 is connected to a control unit (not shown) by the wire harness W1 shown in FIG.

The control unit (not shown) grasps that the switch SW1 is switched between the cutoff state and the connected state, and uses information of other switches and sensors as necessary as a user's operation on the lid 5, which will be described later. It is designed to determine and memorize whether the open operation or the close operation is executed.

In the state where the linear motion shaft 10 is in the first position shown in FIG. 6, the acting portion 27 of the linear motion shaft 10 is farthest from the passive portion 77 of the switch lever 70. At this time, the switch SW1 is in a shutoff state by the switch lever 70 being urged by a torsion coil spring (not shown) to displace the movable protrusion SW1A toward the inside of the vehicle. In this embodiment, the switch SW1 is described as connecting and disconnecting one energization path, but the present invention is not limited to this configuration, and the switch SW1 is displaced when the movable protrusion SW1A is displaced toward the inside of the vehicle. Another energization path may be connected.

Although not shown, the acting portion 27 abuts on the passive portion 77 while the linear motion shaft 10 is displaced from the first position to the second position, and then the linear motion shaft 10 reaches the third position. The switch lever 70 is urged so that the torsion coil spring (not shown) presses the passive portion 77 against the acting portion 27. As a result, the switch lever 70 is interlocked with the linear motion shaft 10. Then, when the linear motion shaft 10 reaches the third position, the switch lever 70 displaces the movable protrusion SW1A toward the outside of the vehicle, so that the switch SW1 switches from the cutoff state to the connected state.

On the other hand, when the linear motion shaft 10 is displaced from the third position to the first position, the switch lever 70 interlocked with the linear motion shaft 10 swings counterclockwise in FIG. 6 due to the urging force of a torsion coil spring (not shown). Therefore, the switch SW1 switches from the connected state to the cutoff state. Then, when the linear motion shaft 10 passes through the second position and the acting portion 27 is separated from the passive portion 77, the switch lever 70 is not interlocked with the linear motion shaft 10.

<Opening and closing operation of the lid>
The lid opening / closing device 1 having the above configuration opens / closes the lid 5 as follows. As shown by the alternate long and short dash line in FIG. 1, the description starts from the state where the lid 5 is in the first position and the opening 8 is greatly opened.

In this state, the control unit (not shown) remembers that it is after the user's open operation is executed based on the information from the switch SW1 and the like.

Further, in this state, due to the urging force of the compression coil spring 50S, the stopper 50 is in the block position as shown in FIGS. 8A and 9, and the front end of the worm gear 66 is on the facing wall 90M as shown in FIG. It is in contact.

When the user pushes the lid 5 shown by the alternate long and short dash line in FIG. 1 toward the inside of the vehicle to bring it into the state shown by the solid line in FIG. 1, the tip of the linear motion shaft 10 in the first position and the rotating shaft in the unlatch position. The tip of the 30 enters the lid engaging portion 4 of the lid 5, and the cushioning portion 81 of the linear motion shaft 10 abuts on the surface of the lid 5 facing the inside of the vehicle to absorb the impact.

When the user pushes the lid 5 further toward the inside of the vehicle against the urging force of the compression coil spring 10S, the lid 5 passes through the closed position shown in FIG. 2 and reaches the pushed position shown in FIG. At this time, the linear motion shaft 10 passes through the second position and reaches the third position. The rotating shaft 30 rotates from the unlatch position to the latch position while rotating linearly with the linear motion shaft 10, locks the latch projections 34A and 34B to the lid locking portion 4, and locks the lid 5. ..

At this time, as shown in FIG. 8B, the stopper 50 is pushed by the pressing portion 28 of the hook block 20 of the linear motion shaft 10 while the linear motion shaft 10 is moving from the first position to the second position. Then, by swinging from the block position to the unblock position against the urging force of the compression coil spring 50S, the linear motion shaft 10 is allowed to pass through the second position.

Here, as shown in FIG. 10, the worm gear 66 is interlocked with the stopper 50 that swings to the unblocked position, and slides backward within a predetermined range E1, so that the resistance of the electric motor 61 is reduced to the worm wheel 56 and the worm gear. It is possible to suppress the action on the stopper 50 via 66. As a result, it is possible to prevent the load acting on the gear teeth of the worm wheel 56 and the worm gear 66 from becoming excessive and causing problems such as breakage.

Then, as shown in FIG. 8C, when the linear motion shaft 10 passes through the second position and reaches the third position, the stopper 50 swings to the block position by the urging force of the compression coil spring 50S. The stopper surface 55 faces the engaging portion 25 of the linear motion shaft 10 with a gap from the outside of the vehicle.

Here, as shown in FIG. 11, the worm gear 66 is interlocked with the stopper 50 that swings to the block position, slides forward within a predetermined range E1, and its front end abuts on the facing wall 90M, whereby the electric motor It is possible to prevent the resistance of 61 from acting on the stopper 50 via the worm wheel 56 and the worm gear 66. Therefore, the stopper can be quickly swung to the block position.

After that, when the user releases his / her hand from the lid 5, as shown in FIG. 8D, the linear motion shaft 10 is displaced from the third position to the second position by the urging force of the compression coil spring 10S to the block position. By engaging the stopper surface 55 of a certain stopper 50 with the engaging portion 25 of the linear motion shaft 10, the linear motion shaft 10 is held in the second position. As shown in FIG. 12, the worm gear 66 is maintained in a state where its front end is in contact with the facing wall 90M.

While the user is performing the closing operation of closing the lid 5 as described above, although not shown, the switch lever 70 is moved to the linear motion shaft 10 from the middle of the displacement of the linear motion shaft 10 toward the third position. In conjunction with this, when the linear motion shaft 10 is displaced to the third position, the switch SW1 is switched to the connected state.

Based on the memory that the user's open operation has been executed, the control unit (not shown) determines that the switch from the cutoff state to the connected state of the switch SW1 is associated with the user's closing operation, and is electrically operated. It is determined that it is not necessary to supply power to the electric motor 61 of the actuator 60.

After that, when the user releases his / her hand from the lid 5, the switch lever 70 is interlocked with the linear motion shaft 10 displaced from the third position to the second position, and the switch SW1 is switched to the cutoff state, although not shown. ..

The control unit (not shown) determines that the switching from the connected state of the switch SW1 to the cutoff state is due to the end of the closing operation of the user, and stores that fact.

The user performs an opening operation of pushing the lid 5 from the closed position to the pushing position shown in FIG. 3 in order to swing the lid 5 held in the closed position shown in FIG. 2 to the open position. As a result, as shown in FIG. 8C, the linear motion shaft 10 reaches the second position to the third position while the stopper 50 is in the block position. At this time, although not shown, the switch lever 70 is interlocked with the linear motion shaft 10 displaced from the second position to the third position, and switches the switch SW1 to the connected state.

When the control unit (not shown) grasps that the switch SW1 has been switched to the connected state after memorizing that the closing operation of the user has been completed, it determines that the opening operation of the user has been performed. Then, the control unit (not shown) supplies power to the electric motor 61 of the electric actuator 60 to generate a driving force due to the user's opening operation, and unblocks the stopper 50 as shown by a two-dot chain line in FIG. 8 (d). Swing to the position.

That is, the electric motor 61 of the electric actuator 60 is supplied with power due to the switch SW1 being in the connected state after the lid 5 is held in the closed position, and swings the stopper 50 to the unblocked position.

Here, as shown in FIG. 13, the worm gear 66 rotates integrally with the drive shaft 62 of the electric motor 61, and transmits the driving force of the electric motor 61 to the worm wheel 56. The worm gear 66 rotates clockwise when viewed from the left side of the paper surface of FIG. 13 along the longitudinal direction of the drive shaft 62, and swings the stopper 50 to the unblocked position. During this time, the worm gear 66 receives a reaction force from the worm wheel 56, so that the state in which the front end thereof abuts on the facing wall 90M is maintained.

The stopper 50 swings to the unblocked position shown by the alternate long and short dash line in FIG. 8 (d), and the stopper surface 55 of the stopper 50 is separated from the engaging portion 25 of the linear motion shaft 10. It is allowed to pass through the second position and is displaced to the first position shown in FIG. 8 (a). As a result, the lid 5 passes through the closed position shown in FIG. 2 and swings to the open position shown by the solid line in FIG.

At this time, the rotating shaft 30 rotates linearly with the linear motion shaft 10 from the latch position shown in FIG. 2 to the unlatch position shown in FIG. 1, and the latch projections 34A and 34B are locked by the lid locking portion 4. The lid 5 is not locked. As a result, the user can further swing the lid 5 to the open position shown by the chain double-dashed line in FIG.

During this period, although not shown, the switch lever 70 is interlocked with the linear motion shaft 10 by interlocking with the linear motion shaft 10 and switching the switch SW1 to the cutoff state, and then separating the acting portion 27 from the passive portion 77. Will not be.

When the control unit (not shown) grasps that the switch SW1 has been switched to the cutoff state after starting the power supply to the electric motor 61, the user releases his / her hand from the lid 5 and the linear motion shaft 10 is shown in FIG. 8A. It is determined that the first position shown in is displaced. Then, the control unit (not shown) remembers that the lid 5 has swung to the open position after the user's opening operation is completed, and stops the power supply to the electric motor 61. As a result, the stopper 50 returns to the block position by the urging force of the compression coil spring 50S.

Here, as shown in FIG. 14, since the worm gear 66 receives a forward force by engaging with the worm wheel 56 that swings integrally with the stopper 50, the state in which the front end thereof abuts on the facing wall 90M is maintained. .. At this time, the worm gear 66 is integrated with the drive shaft 62 and rotates counterclockwise when viewed from the left side of the paper in FIG. 14 along the longitudinal direction of the drive shaft 62.

When the electric actuator 60 does not operate due to maintenance work or an abnormality such as a dead battery, the user swings the lid 5 held in the closed position shown in FIG. 2 to the open position shown in FIG. You may have to. In this case, the user can manually swing the stopper 50 from the block position to the unblock position by pushing the manual operation unit 59 backward, so that the lid 5 can be swung to the open position shown in FIG.

Here, as shown in FIG. 15, the worm gear 66 slides backward within a predetermined range E1 in conjunction with the stopper 50, so that the resistance of the electric motor 61 is transferred to the stopper 50 via the worm wheel 56 and the worm gear 66. It can suppress the action. As a result, it is possible to reduce the operating force on the manual operation unit 59 of the user, and it is possible to suppress the occurrence of problems such as damage to the worm wheel 56 and the worm gear 66 due to the operating force of the user.

<Action effect>
In the lid opening / closing device 1 of the embodiment, as shown in FIGS. 5 and 7, a worm wheel 56 is provided on the stopper 50, and more specifically, the worm wheel 56 is integrally formed on the stopper 50. There is no equivalent between the actuated portion of the pole and the acting portion of the worm wheel according to the conventional lid opening / closing device.

Further, in the lid opening / closing device 1, when the lid 5 is pushed from the open position to the push position and the linear motion shaft 10 moves linearly to the third position, first, the stopper 50 is as shown in FIG. While the linear motion shaft 10 is moving from the first position to the second position, it swings to the unblocked position while resisting the compression coil spring 50S to allow the linear motion shaft 10 to move to the second position. At this time, the worm gear 66 that meshes with the worm wheel 56 that swings together with the stopper 50 slides backward in the longitudinal direction of the drive shaft 62 within a predetermined range E1. The slide of the worm gear 66 can prevent the resistance of the electric motor 61 from acting on the stopper 50 via the worm wheel 56 and the worm gear 66. As a result, it is possible to prevent the load acting on the gear teeth of the worm wheel 56 and the worm gear 66 from becoming excessive and causing problems such as breakage.

Next, as shown in FIG. 11, even when the stopper 50 is urged by the compression coil spring 50S and swings from the unblocked position to the block position after the linear motion shaft 10 moves to the second position, the stopper 50 The worm gear 66 that meshes with the worm wheel 56 that swings together slides in the longitudinal direction of the drive shaft 62 within a predetermined range E1 and in the forward direction opposite to the above. The reverse slide of the worm gear 66 can prevent the resistance of the electric motor 61 from acting on the stopper 50 via the worm wheel 56 and the worm gear 66. Therefore, the stopper 50 can be quickly swung to the block position.

Therefore, in the lid opening / closing device 1 of the embodiment, simplification, improvement of durability, and improvement of holding performance for holding the lid 5 in the closed position can be realized.

Further, in the lid opening / closing device 1, the lock shaft has a linear motion shaft 10 and a rotary shaft 30, and the stopper 50 is engaged with the engaging portion 25 of the linear motion shaft 10 which cannot rotate around the axis X10. By the configuration in which the stopper surface 55 is engaged and separated, simplification, improvement of durability, and improvement of holding performance for holding the lid 5 in the closed position can be further realized.

Further, in the lid opening / closing device 1, when the electric actuator does not operate due to maintenance work or an abnormality such as a dead battery, the user operates the manual operation unit 59 from the outside of the housing 90, and FIG. As shown, the lid 5 can be displaced to the open position by swinging the stopper 50 to the unblocked position. Then, in this case, the worm gear 66 that meshes with the worm wheel 56 that swings together with the stopper 50 slides backward in the longitudinal direction of the drive shaft 62 within a predetermined range E1. The slide of the worm gear 66 can prevent the resistance of the electric motor 61 from acting on the stopper 50 via the worm wheel 56 and the worm gear 66. As a result, it is possible to reduce the operating force on the manual operation unit 59 of the user, and it is possible to suppress the occurrence of problems such as damage to the worm wheel 56 and the worm gear 66 due to the operating force of the user.

Although the present invention has been described above with reference to the examples, it is needless to say that the present invention is not limited to the above-mentioned embodiments and can be appropriately modified and applied without departing from the spirit of the present invention.

For example, in the embodiment, the worm wheel 56 is integrally formed with the stopper 50, but the present invention is not limited to this configuration. For example, a worm wheel, which is a separate member, may be fixed to the stopper by fastening, fitting, or the like. Further, a worm wheel, which is a separate member, may be always connected to the stopper via a transmission shaft, a link, a gear tooth, or the like.

For example, in the embodiment, the manual operation portion 59 is integrally molded with the stopper 50, but the present invention is not limited to this configuration. For example, a manual operation unit, which is a separate member, may be fixed to the stopper by fastening, fitting, or the like.

In the embodiment, the oil supply hole 8H is arranged in the opening 8, but the present invention is not limited to this configuration. For example, a power supply connector or the like may be arranged in the opening. Further, in the embodiment, the wire harness W1 extending from the housing 90 is connected to a control unit (not shown), but the configuration is not limited to this. For example, a connector may be provided in the housing, and the connector may be connected to a mating connector provided in the vehicle body.

The present invention can be used for vehicles such as automobiles, buses or industrial vehicles.

1 ... Closure opening / closing device for vehicles 9 ... Body 8 ... Opening 5 ... Closure 90 ... Housing X10 ... Axis 10, 30 ... Lock shaft (10 ... Linear shaft, 30 ... Rotating shaft)
50 ... Stopper 50S ... Biasing means (compression coil spring)
61 ... Electric motor 62 ... Drive shaft 66 ... Worm gear E1 ... Predetermined range 56 ... Worm wheel 25 ... Engaging part 28 ... Pressing part 59 ... Manual operation part

Claims (3)

A vehicle lid opening / closing device provided between an opening provided in a vehicle body and a lid that can open and close the opening.
The lid can be displaced between an open position that opens the opening, a closing position that closes the opening, and a pushing position that is pushed from the closed position to the side opposite to the open position.
The lid opening / closing device includes a housing provided on the vehicle body and a housing.
It extends around the axis passing through the opening, and in the direction of the axis, the first position corresponding to the open position, the second position corresponding to the closed position, and the third position corresponding to the pushing position. A lock shaft that is reciprocally supported by the housing and urged toward the first position,
A block position that is supported by the housing and prohibits the lock shaft from moving from the second position to the first position, and allows the lock shaft to move from the second position to the first position. It is swingable to and from the unblocked position, and while the lock shaft is moving from the first position to the second position, it swings to the unblocked position to the second position of the lock shaft. With a stopper that allows the movement of
An urging means for urging the stopper toward the block position,
An electric motor provided in the housing and supplied with power due to an opening operation for displacing the lid body to the open position, and an electric motor that generates a driving force.
A drive shaft that is rotated by the driving force of the electric motor,
A worm gear that is held by the drive shaft, can rotate integrally with the drive shaft, and can slide in the longitudinal direction of the drive shaft within a predetermined range.
A lid opening / closing device for a vehicle provided with a worm wheel provided on the stopper, which meshes with the worm gear and swings the stopper to the unblocked position by rotation of the drive shaft. The lock shaft extends around the axis and can reciprocate between the first position, the second position, and the third position in the direction of the axis, and around the axis. A linear motion shaft that is non-rotatably supported by the housing and urged toward the first position.
It extends around the axis, is reciprocating in the direction of the axis, and is rotatably supported by the linear shaft around the axis, and the linear shaft is in the second position or the third position. If it is, it rotates to the latch position that locks the lid body, while if the linear motion shaft is in the first position, it has a rotating shaft that rotates to the unlatch position that does not lock the lid body. death,
An engaging portion that engages with the stopper is formed on the linear motion shaft.
The stopper engages with the engaging portion to prevent the linear motion shaft from moving from the second position to the first position, and the unblocking position separated from the engaging portion. Can be displaced between and
The vehicle according to claim 1, wherein the linear motion shaft has a pressing portion that presses the stopper while moving from the first position to the second position to swing the stopper to the unblocked position. Lid opening and closing device for. The vehicle according to claim 1 or 2, wherein the stopper is provided so as to be operable from the outside of the housing, and is integrally provided with a manual operation unit that displaces the stopper to the unblocked position by being operated. Lid opening and closing device.

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