JP2003048488A - Device for driving pole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin pole driving device excellent in lighting efficiency, in the pole driving device capable of erecting and storing a pole. SOLUTION: This pole driving device for turning the pole to be erected and stored is provided with a driving mechanism for making an extending direction of the pole in the storage brought into a condition parallel to a longitudinal direction thereof, arranged in parallel to a turning face of the pole, and for generating driving force for turning the pole, and a turning shaft for turning the pole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pole driving device, and more particularly to a pole driving device capable of raising and retracting a pole.

[0002]

2. Description of the Related Art There is a corner pole in which a pole is set up at the end of a vehicle to improve recognition of the end of the vehicle. Some corner poles can be stored in consideration of the design of the vehicle. For example, by using a telescopic fitting tube for the corner pole, and expanding and contracting the telescopic fitting tube with a motor,
There was a retractable corner pole drive that stretches the corner pole.

However, since the telescopic corner pole drive device needs a space for storing the telescopic fitting pipe below, it is generally mounted on a bumper or the like.
Such a corner pole driving device is generally mounted on the front of a vehicle where the bumper is relatively overhanging.

When such a telescopic corner pole is attached to the rear of a vehicle, the distance from the bumper to the driver's view is long due to the presence of a trunk or the like in the rear, and the pole is elongated. There is a need. In addition, it was necessary to arrange it so that it did not interfere with the opening and closing of the trunk. Moreover, the bumper on the rear side is small. Therefore, it is difficult to attach the telescopic corner pole drive device to the rear of the vehicle.

Therefore, an inverted type corner pole driving device has been proposed, for example, in Japanese Utility Model Laid-Open No. 6-16142.

The inverted type corner pole drive device is fixed on the trunk of the vehicle, and the corner pole can be retracted by being inverted.

[0007]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the conventional corner pole drive device described in Japanese Patent No. 16142, since the motor is located below the corner pole,
There was a problem that the thickness became thick and the design of the vehicle was damaged.

The conventional corner pole driving device disclosed in Japanese Utility Model Laid-Open No. 6-16142 has a light emitting device in the driving device main body, and light emitted from the light emitting device of the driving device main body passes through the inside of the corner pole. Since the light is guided to the tip of the corner pole and is emitted to the outside, there is a problem that the light is attenuated when passing through the inside of the corner pole and the efficiency of illumination is poor.

The present invention has been made in view of the above points, and an object of the present invention is to provide a pole driving device which is thin and has good illumination efficiency.

[0010]

DISCLOSURE OF THE INVENTION The present invention is a pole drive device for rotating a pole to stand up and store it, the drive source generating a rotary drive force, and the rotary drive generated by the drive source. A rotary drive force transmission mechanism for transmitting a force to a rotary shaft that rotates the pole, and the drive source and the rotary drive force transmission mechanism are arranged so as not to overlap the pole at least when the pole is retracted in plan view. Is characterized by.

According to the present invention, the drive source and the rotary drive force transmission mechanism are arranged so as not to overlap the pole at least when the pole is retracted in a plan view, so that the drive source and the rotary drive force transmission mechanism are provided in the lower portion of the pole. Since it is not arranged, thinning is possible.

Further, the drive source is composed of a motor, the rotary drive force transmission mechanism is fixed to the rotary shaft of the motor, and the worm gear for converting the rotary shaft so as to be orthogonal to the rotary shaft of the motor meshes with the worm gear to rotate. The worm gear and the gear group are arranged in the direction of the rotation axis of the motor.

According to the present invention, since the width of the drive mechanism can be reduced by disposing the gear train in the direction of the rotation axis of the motor, it is possible to suppress an increase in the width of the entire apparatus.

Further, the light emitting element arranged at the tip of the pole, the moving contact arranged around the rotating shaft and connected to the light emitting element, and the moving contact coming into contact with the moving contact when the pole stands up, and the voltage is applied to the moving contact. And a fixed contact for applying.

According to the present invention, when the pole stands up, the movable contact and the fixed contact come into contact with each other, a voltage is applied to the light emitting element, the light emitting element emits light, and the tip of the pole can emit light.

Further, it is characterized in that the fixed contact is slid on the moving contact immediately before the pole is erected until the pole is completely erected.

According to the present invention, by sliding the fixed contact with the moving contact immediately before the pole is erected until the pole is completely erected, dust between the fixed contact and the moving contact is slid. The contact between the fixed contact and the moving contact can be reliably maintained because they can be removed by.

[0018]

1 is an exploded perspective view of a pole driving device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a pole driving device according to an embodiment of the present invention, and FIG. The block diagram of the pole drive device of an Example is shown.

The pole driving device 1 of the present embodiment is configured to include a corner pole 11 and a driving device main body 12. The corner pole 11 is engaged with the drive device main body 12 and is rotatable by the drive device main body 12 to the standing and storage positions. The drive device main body 12 is disposed on a side portion of the corner pole 11 so as not to overlap the corner pole 11 when seen in a plan view, that is, when the pole drive device 1 is viewed in the arrow A2 direction.

FIG. 4 is a block diagram of the corner pole 11. FIG. 4 (A) is a sectional view and FIG. 4 (B) is a side sectional view.

The corner pole 11 includes an arm half 21,
22, the rotary shaft 23, the connecting plates 24 and 25, the lead wires 26 and 27, the light emitting element 29, and the emitting lens 30. The arm halves 21 and 22 are integrally formed with a rotating portion 31 and an arm portion 32.

A plate holding portion 33 for holding the connection plate 24 is formed on the rotating portion 31 of the arm half body 21. The connection plate 24 is formed integrally with the contact portion 24a, the holding portion 24b, and the connection portion 24c by bending a conductive material. The connection plate 24 is shown in FIG.
As shown in (B), the holder 24b is replaced by the plate holder 33.
The contact portion 24a is held by the groove portion 34 formed around the rotating portion 31. At this time, the contact portion 24a
The contact surface is arranged so as to be orthogonal to the rotating direction of the rotating portion 31 and the directions of the arrows θ11 and θ12. Also, the connecting portion 24c
Is extended to the arm portion 32 side.

A lead wire 26 is connected to the connecting portion 24c. The lead wire 26 extends through the arm portion 32 to the tip of the arm portion 32. A protrusion 35 is provided near the tip of the case half 21. Light emitting element 2
9 is composed of a light emitting diode, for example, and is held by the case half body 21 by sandwiching the projecting portion 35 by the leads 29a and 29b.

A plate holding portion 36 for holding the connection plate 25 is formed on the rotating portion 31 of the arm half body 22. The connection plate 25 is formed integrally with the contact portion 25a, the holding portion 25b, and the connection portion 25c by bending a conductive material. In the connection plate 25, the holding portion 25 b is held by the plate holding portion 36, and the contact portion 25
The a is exposed in the groove portion 37 formed around the rotating portion 31. At this time, the contact surface of the contact portion 25a is arranged in the radial direction so as to be orthogonal to the rotating direction of the rotating portion 31 and the directions of the arrows θ11 and θ12. Further, the connecting portion 25c is the arm portion 3
It is extended to the 2nd side.

The lead wire 27 is connected to the connecting portion 25c. The lead wire 27 extends through the arm portion 32 to the tip of the arm portion 32, and is connected to the other lead 29 a of the light emitting element 29.

In the arm halves 21 and 22, the screws 38 are passed through the through holes 40 of the arm halves 21 so that the arm halves 22.
The screw 39 is screwed into the screw hole 41, the screw 39 is passed through the through hole 42 of the arm half body 21, and the screw 39 is screwed into the screw hole 43 of the arm half body 22 to be assembled.

A hole portion 44 and a step portion 45 are formed at the tip of the arm portion 32. The light emitting element 29 is provided in the hole 44.
The light emitting portion 29c of is fitted. The exit lens 30 is engaged with the step portion 45. In the emitting lens 30, the screw 46 is passed through the through hole 47 of the emitting lens 30, and the arm portion 3 is formed.
The screw hole 50 formed in the step portion 51 of the arm portion 32 is screwed into the screw hole 48 formed in the second step portion 45, and the screw 49 is passed through the through hole 50 of the emitting lens 30.
It is assembled by screwing into.

The emitting lens 30 emits the light emitted from the light emitting portion 29c of the light emitting element 29 to the outside. At this time, the exit lens 30 has a step portion 52 formed on the inner periphery thereof, and is configured to emit light.

The corner pole 11 of the present embodiment has a light emitting element 29 built in the tip of the corner pole 11, and the light emitted from the light emitting element 29 is directly emitted from the lens 3 for emission.
Since it is incident on 0 and diffused, there is almost no attenuation of light and the efficiency of illumination is good.

The corner pole 11 can be erected and stored by being rotated by the drive device main body 12 with the rotating portion 31 engaging with the drive device main body 12.

The drive unit main body 12 is constructed to include an upper case 61, a lower case 62, a drive unit 63, and a contact mechanism 64. On the upper case 61, a pole storage portion 71 and a drive portion storage portion 72 are formed. The pole storage 71 is
The upper surface of the upper case 61 is formed in a concave shape. When the corner pole 11 is stored in the pole storage portion 71, the corner pole 11 is fitted so as to be integrated with the upper case 61.

The drive portion storage portion 72 has a configuration in which the lower surface side of the upper case 61 is formed in a concave shape. Drive unit storage unit 7
In 2, a drive unit 63 is stored. The drive portion 63 engages with the rotating portion 31 of the corner pole 11 to rotate the corner pole 11.

FIG. 5 is a block diagram of the drive unit 63.

The drive unit 63 is the control unit 8
1, motor 82, worm 83, worm wheel 8
4, gears 85 and 86, output gear 87, inner case 88
Composed of. The control unit 81 is connected to the outside via a lead wire 89. The control unit 81 controls the rotation of the motor 82 according to the supply of power to the lead wire 89. The rotation shaft of the motor 82 is
The worm 83 is fixed.

The worm 83 meshes with the worm wheel 84. The rotation axis of the worm wheel 84 is the motor 8
It is arranged so as to extend in the direction of arrow C orthogonal to the rotation axis of No. 2, and is arranged substantially above the worm 83, on the side of the direction of arrow A1. The worm wheel 84 rotates according to the rotation of the worm 83. The worm 83 and the worm wheel 84 form a worm gear.

The worm wheel 84 meshes with the gear 85. The gear 85 is an arrow B of the worm wheel 84.
The rotation axis direction is arranged in the direction of arrow C on the one direction side. The gear 85 rotates according to the rotation of the worm wheel 84. The gear 85 meshes with the gear 86. The gear 86 is arranged on the arrow B1 direction side of the gear 85 so that the rotation axis direction is the arrow C direction. Gear 8
6 rotates according to the rotation of the gear 85.

The gear 86 meshes with the output gear 87. The output gear 87 is arranged on the arrow B1 direction side of the gear 86 so that the rotation axis direction is the arrow C direction. The output gear 87 rotates according to the rotation of the gear 86. The output shaft 87 holds the rotary shaft 23 of the corner pole 11.

The rotation of the motor 82 is decelerated by the worm 83, the worm wheel 84, the gears 85 and 86, and the output gear 87 and transmitted to the rotary shaft 23. At this time, since the worm 83, the worm wheel 84, the gears 85 and 86, and the output gear 87 extend in the extension direction of the rotation shaft of the motor 82, the thickness of the drive portion 63 in the arrow C direction can be reduced.

The control unit 81, the motor 82,
Worm 83, Worm Wheel 84, Gears 85, 8
6. The output gear 87 is built in the inner case 88.
The inner case 88 is composed of inner case halves 90, 91, and O.
The ring 92 and the packing 93 are included. In the inner case half body 90, a groove portion 94 is formed over the entire circumference at a joint portion with the inner case half body 91. In addition, the inner case half body 91 includes an inner case half body 90.
A convex portion 95 that engages with the groove portion 94 is formed over the entire circumference of the joint portion. An O-ring 92 is fitted in the groove 94 of the inner case half body 90. The O-ring 92 is pressed by the groove portion 94 and the convex portion 95 when the convex portion 95 of the inner case half body 91 is fitted in the groove portion 94 of the inner case half body 90, and the O-ring 92 and the inner case half body 90 are The joint with the case half 91 is made waterproof.

The rotating shaft 96 of the output gear 87 extends outside through an output hole 97 formed in the inner case half body 90.

The packing 93 includes a holding portion 98 and a collar portion 99.
Composed of. The holding portion 98 of the packing 93 is press-fitted onto the rotating shaft 96 of the output gear 87. Further, the collar portion 99 is
It is pressed against the inner surface side of the inner case half body 90. The packing 93 can prevent water, dust and the like from entering through the output hole 97 of the inner case half body 90.

An engaging hole 100 is formed at the tip of the rotary shaft 96. The corner pole 11 is provided in the engaging hole 100.
The rotary shaft 23 of is engaged. As shown in FIG.
As shown in, cutouts 23a and 23b are formed.
The engagement hole 100 has a shape that engages with the tip shape of the rotary shaft 23. As a result, the rotation of the rotary shaft 96 of the drive unit 63 is reliably transmitted to the rotary shaft 23.

The rotary shaft 23 of the corner pole 11 is rotatably held by a contact mechanism 64. Contact mechanism 6
4 is fixed on the lower case 62.

FIG. 6 is a block diagram of the contact mechanism 64.

The contact mechanism 64 includes the holder 101 and the contact 10.
2, 103.

The holder 101 has a structure in which a base portion 111 and bearing portions 112 and 113 are integrally formed. The base portion 111 has screw holes 121 and 122, through holes 123 and 124, and convex portions 125 and 126.

As shown in FIG. 2, the holder 101 engages the projection 127 planted in the lower case 62 with the through hole 123, and the projection 128 planted in the lower case 62 through the through hole 12.
The lower case 62 is positioned by engaging with 4.

A screw 130 is screwed into the screw hole 121 through the through hole 129 of the lower case 62. A screw 132 is screwed into the screw hole 122 through the through hole 131 of the lower case 62. This makes the holder 1
01 is fixed at a predetermined position of the lower case 62.

The bearing portions 112 and 113 are the base portion 111.
Are planted at both ends in the direction of arrow C. Bearing 112,
By 113, both ends of the rotary shaft 23 of the corner pole 11,
The lower part is rotatably held. Also, corner pole 1
The upper case 61 rotatably holds both ends and an upper portion of the first rotary shaft 23. The corner pole 11 has a contact mechanism 6
4 and the upper case 61 cooperate and are rotatably held.

The contact 102 is formed by bending a conductive plate, and has a contact portion 141, a fixing portion 142, and a connecting portion 143.
Composed of.

The contact 102 is fixed to the base portion 111 by the fixing portion 142. The fixing portion 142 has a hole 1
44 and 145 are formed. The hole 144 engages with the protrusion 125 planted in the base 111. A rivet 146 penetrates the hole 145. Rivet 1
46 is driven into the base portion 111. Contact 102
Is formed by the convex portion 125 and the rivet 146.
It is fixed at 1.

A lead wire 157 is soldered to the connecting portion 143. The contact portion 141 is the corner pole 11
At the time of standing up, the contact 24 is elastically deformed and comes into contact with the contact 24 provided on the rotating portion 31 of the corner pole 11 to supply power to the light emitting element 29 of the corner pole 11.

The contact 103 is fixed to the base portion 111 by the fixing portion 152. The fixing portion 152 has a hole 1
54 and 155 are formed. The hole portion 154 engages with the convex portion 126 planted in the base portion 111. A rivet 156 penetrates the hole 155. Rivet 1
56 is driven into the base portion 111. Contact 103
Is formed by the convex portion 126 and the rivet 156.
It is fixed at 1.

A lead wire 158 is soldered to the connecting portion 153. The contact portion 151 makes contact with the contact point 25 while elastically deforming with the contact point 25 provided on the rotating portion 31 of the corner pole 11 when the corner pole 11 stands up.
Power is supplied to the light emitting element 29 of. In addition, the lead wire 15
7, 158 are connected to the control unit 81. A power supply for causing the light emitting element 29 to emit light is supplied from the control unit 81 to the lead wires 157 and 158.

Next, the contact operation between the contact 102 and the contact 24 of the rotating portion 31 of the corner pole 11 will be described in detail.

FIGS. 7 and 8 are explanatory views of the contact operation between the contact 102 and the contact 24 of the rotating portion 31 of the corner pole 11. FIG. 7 is a diagram showing a state when the corner pole 11 is stored, and FIG. 8 is a diagram showing a state when the corner pole 11 is standing.

When the corner pole 11 is stored in the pole storage portion 71 of the drive unit main body 12, since the rotating portion 31 of the corner pole 11 is rotated in the direction of the arrow θ11, as shown in FIG. Contact part 24a of contact 24
Exists at a position separated from the contact portion 141 of the contact 102. Similarly, the contact 25 and the contact 103 are present at positions separated from each other. Therefore, no power is supplied to the light emitting element 29 and the light emitting element 29 is turned off.

Next, when the standing up switch of the corner pole 11 is turned on, the control unit 81 rotates the motor 82 in the direction of the arrow θ21 shown in FIG. 5 (C). When the motor 82 is rotated in the direction of arrow θ21, the worm 83
Causes the worm wheel 84 to move toward the arrow θ shown in FIG.
It is rotated in 31 directions.

When the worm wheel 84 is rotated in the direction of the arrow θ31, the gear 85 is rotated in the direction of the arrow θ41. When the gear 85 is rotated in the arrow θ41 direction, the gear 86 is rotated in the arrow θ51 direction. When the gear 86 is rotated in the arrow θ51 direction, the output gear 87 is rotated in the arrow θ12 direction.

When the output gear 87 is rotated in the direction of the arrow θ12, the rotational driving force of the output gear 87 is transmitted to the rotary shaft 23 of the corner pole 11. The corner pole 11 stands up in the direction of the arrow θ12 by the rotational driving force acting in the direction of the arrow θ12 acting on the rotating shaft 23.

When the corner pole 11 is rotated by an angle φ11, the upper surface of the rotating portion 31 of the corner pole 11 comes into contact with the abutting portion 161 provided at the side end portion of the pole storing portion 71 of the upper case 61, and the turning portion 31 rotates. Motion is stopped.

At this time, the contact 24 is the corner pole 1
When the rotation angle of 1 becomes φ12, the contact point 102 is contacted.
Similarly, the contact 25 and the contact 103 come into contact with each other. When the contact 24 and the contact 102 and the contact 25 and the contact 103 come into contact with each other, power is supplied to the light emitting element 29. Light emitting element 29
Emits light by the power source supplied from the contacts 24 and 25.

When the corner pole 11 further rotates from the angle φ12 in the direction of the angle φ11, the contact point 24 presses the contact point 102. When the contact 102 is pressed, the contact 102 elastically deforms in the direction of the arrow θ81. When the contact 102 is elastically deformed in the direction of the arrow θ81, the contact 102 presses the contact 24 in the direction of the arrow θ82.

When the contact point 102 and the contact point 24 are pressed and brought into contact with each other, the contact point 102 and the contact point 24 can be surely brought into contact with each other. Further, it is possible to prevent the contact point 102 and the contact point 24 from being separated from each other even if an impact is applied.

When the corner pole 11 rotates from the angle φ12 to the angle φ11, the contact point P between the contact point 24 and the contact point 102 moves in the arrow E direction. As a result, the contact 24
Between the contact 102 and the contact 102 is cleaned, and the contact 2
The contact between the contact 4 and the contact 102 is ensured.

Further, the control unit 81 drives the motor 82 for a predetermined time necessary for standing up and then stops it. The control unit 81 has a contact 102.
Alternatively, the motor 82 may be controlled to be stopped by determining whether or not a current flows through the contact 103. Furthermore, the counter electromotive force generated in the motor 82 may be detected to stop the motor 82.

Further, the corner pole 11 stands up with an angle φ21 with respect to the direction of the arrow A in the vertical direction when standing up. The inclination of the corner pole 11 allows the exit lens 30 at the tip of the corner pole 11 to be positioned so as to project from the drive device main body 12 in the arrow B direction. Since the drive device main body 12 is not normally mounted outside the end of the mounting target, the exit lens 30
Can indicate a position close to the end of the attachment target.

The motor as a motor drive source and the gear group as a rotational drive force transmission mechanism are arranged so as not to overlap the corner pole 11 in a plan view.

Next, the operation of storing the corner pole 11 will be described.

When the storage switch for storing the corner pole 11 is turned on, the control unit 81
Causes the motor 82 to rotate in the direction of the arrow θ22 shown in FIG. When the motor 82 is rotated in the arrow θ22 direction, the worm 83 rotates the worm wheel 84 in the arrow θ32 direction shown in FIG. 5B.

When the worm wheel 84 is rotated in the arrow θ32 direction, the gear 85 is rotated in the arrow θ42 direction. When the gear 85 is rotated in the arrow θ42 direction, the gear 86 is rotated in the arrow θ52 direction. When the gear 86 is rotated in the direction of arrow θ52, the output gear 87 is rotated in the direction of arrow θ11.

When the output gear 87 is rotated in the direction of the arrow θ11, the rotational driving force of the output gear 87 is transmitted to the rotary shaft 23 of the corner pole 11. The corner pole 11 is rotated in the direction of the arrow θ11 by the rotation driving force acting on the rotation shaft 23 in the direction of the arrow θ11.

When the corner pole 11 rotates by the angle φ11, the corner pole 11 comes into contact with the storage portion 71 to complete the storage. The control unit 81 has a motor 82.
Is driven for a predetermined time required to store the corner pole 11, and then stopped. Note that the motor 82 may be stopped by detecting the counter electromotive force generated in the motor 82.

The moving contact may be provided on the side surface of the rotating portion 31 and the fixed contact may be arranged on the bearing portions 112 and 113. Also in this case, by making the moving contact and the fixed contact start to contact immediately before the pole completely stands up, the moving contact and the fixed contact do not come into contact from the retracted state of the pole until immediately before the pole completely stands up. , It is possible to reduce the rotational drive load from the retracted state of the pole to immediately before the pole completely stands up.

[0075]

As described above, according to the present invention, the drive source and the rotary drive force transmission mechanism are arranged so that they do not overlap with the pole at least when the pole is retracted in plan view. Since the mechanism is not placed under the pole, it is possible to reduce the thickness.

Further, the drive source is composed of a motor, the rotary drive force transmission mechanism is fixed to the rotary shaft of the motor, and the worm gear for converting the rotary shaft so as to be orthogonal to the rotary shaft of the motor meshes with the worm gear to rotate. The width of the drive source and the rotational driving force transmission mechanism can be reduced by arranging the worm gear and the gear group in the direction of the rotation axis of the motor. The increase can be suppressed.

Further, according to the present invention, the light emitting element arranged on the pole, the moving contact arranged around the rotating shaft and connected to the light emitting element, and the moving contact coming into contact with the moving contact when the pole is raised. By providing a fixed contact for applying a voltage to the contact, when the pole stands up, the moving contact and the fixed contact come into contact with each other, a voltage is applied to the light emitting element, the light emitting element emits light, and the pole emits light. You can

Furthermore, according to the present invention, by sliding the fixed contact with the moving contact immediately before the pole is erected until the pole is completely erected, dust between the fixed contact and the moving contact is removed. Since it can be removed by sliding,
It is possible to reliably maintain the contact between the fixed contact and the moving contact, and it is possible to reduce the rotational drive load from the state where the pole is stored to immediately before the pole is completely erected.

[Brief description of drawings]

FIG. 1 is an assembled perspective view of a pole driving device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a pole driving device according to an embodiment of the present invention.

FIG. 3 is a configuration diagram of a pole driving device according to an embodiment of the present invention.

FIG. 4 is a configuration diagram of a corner pole 11.

5 is a configuration diagram of a drive unit 63. FIG.

FIG. 6 is a configuration diagram of a contact mechanism 64.

FIG. 7 is a diagram showing a state when the corner pole 11 is stored.

FIG. 8 is a view showing a state when the corner pole 11 is standing.

[Explanation of symbols]

1 Pole Drive Device, 11 Corner Pole, 12 Drive Device Main Body, 23 Rotating Shaft, 24, 25, 102, 10
3 contact points, 30 emitting lens, 31 rotating section 32 arm section, 61 upper case 62 lower case, 63 drive section, 64 contact mechanism, 71
Pole storage 72 Drive storage, 81 Control unit, 8
2 motor 83 worm, 84 worm wheel, 85, 86
Gear, 87 output gear

Claims (4)

[Claims] 1. A pole drive device for rotating a pole so as to stand up and store the drive source, the drive source generating a rotation drive force, and the rotation drive force generated by the drive source rotating the pole. A rotary drive force transmitting mechanism for transmitting to the rotating shaft, wherein the drive source and the rotary drive force transmitting mechanism are arranged so as not to overlap the pole at least when the pole is retracted in plan view. Pole drive. 2. The drive source is composed of a motor, and the rotary drive force transmission mechanism is fixed to a rotary shaft of the motor, and a worm gear for converting the rotary shaft so as to be orthogonal to the rotary shaft of the motor, 2. A pole drive according to claim 1, wherein the worm gear and the gear group are arranged in a rotation axis direction of the motor, the gear group engaging with the worm gear and rotating the rotation shaft. apparatus. 3. A light emitting element arranged on the pole, a moving contact arranged around the rotating shaft and connected to the light emitting element, and the moving contact coming into contact with the moving contact when the pole stands up. 3. The pole drive device according to claim 1, further comprising a fixed contact that applies a voltage to the contact. 4. The pole driving device according to claim 3, wherein the fixed contact slides on the movable contact between immediately before the pole is erected and before the pole is completely erected.