JP2954518B2 - Floodlight - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light projector having a light provided at the upper end of a telescopic support column erected on a bogie, and more particularly to a light projector in which a light projecting angle is arbitrarily adjusted with the telescopic support column extended. Regarding the floodlight that can be.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS.
A support rod 102 is provided at the upper end of a telescopic column 101 erected on a cart 100.
A light 104 is mounted via a mounting member such as a mounting frame 103, the light 104 is connected to a generator 105 mounted on the trolley 100, and a handle 106 raised at the rear of the trolley 100 is pressed to move the trolley 100 to the generator 105. There is also known a projector configured to move to an arbitrary location together with the telescopic strut 101, extend a telescopic support 101, turn on a light 104, and project light to a required location. Telescopic strut 10
1 is to vertically slide at least one (two in the illustrated example) middle tube columns 101b and 101c whose inner diameters are sequentially reduced with respect to the base tube column 101a fixed vertically to the carriage 100. As far as possible, the middle tube post 10 is inserted into each of the tube posts 101a to 101c.
1b, 101c is provided with an elevating mechanism (not shown) that slides up and down.
It has a well-known structure in which the column 101 is extended at the time of use to position the light 104 at a desired height, and the column 101 is contracted at the time of non-use. At the upper end of the telescopic strut 101, that is, at the upper end of the uppermost middle tubular column 101c, a supporting rod 102 is attached and supported along the width direction of the bogie 1 and a predetermined number of the supporting rods 102, here two attaching frames 103 And fix each mounting frame 103
The light 104 is rotatably mounted on the camera, and the light 104 is rotated in a predetermined direction by a manual operation of an operator so that the light projection angle can be adjusted arbitrarily.

[0003]

In the above-mentioned conventional floodlight, an operator rotates the light 104 while the telescopic strut 101 is contracted as shown in FIG. After setting, the telescopic strut 101 is extended to project light to a required place. However, since the setting of the light projecting angle largely depends on the empirical rules and intuition of the operator, the telescopic strut 10 is required.
1 is often displaced when the light is projected, and the column 101 is usually extended to a height of about 3 to 5 m.
If it is misaligned, retract the column 101 again and
It is necessary to adjust the light projection angle by rotating 4.

The present invention has been made in view of such a conventional situation, and an object of the present invention is to adjust a light projection angle of a light mounted on an upper end of a telescopic support in an extended state of the support. It is to provide a new floodlight which can do.

[0005]

According to a first aspect of the present invention, a support rod is provided at the upper end of a telescopic support standing upright on a carriage along the width direction of the carriage. You
And a predetermined number of mounting frames fixed to the support rod.
Floodlight with a pedestal at the top of the telescopic support
Provided on the pedestal by the support shafts protruding from the left and right ends
The supporting rod is rotatably supported on the surface side, and the supporting rod is
The rear side is the first rotation that rotates eccentrically by the drive of the drive motor.
A plate and a first rotating plate rotatably mounted on the first rotating plate.
A second rotating plate that rotates eccentrically with the rotation, and an outer portion of the second rotating plate
Connect the tip of the connecting rod part formed on the circumference to the rear
Connects to an angle adjustment mechanism that has a
Then, the first rotation plate and the second rotation are driven by the drive motor.
The plate and the connecting rod part are eccentrically rotated, and the supporting rod is
Slope position closest to end pedestal and furthest away
A drive motor that rotates back and forth between the tilt position and
At a predetermined angle within the rotation range with the stop of
And the support rod is supported
At the inclined position closest to the pedestal at the top of the pillar,
An operator's hand, finger, etc. may be pinched between the support rod and the base.
Structure to ensure a degree without gaps and, and the drive
The gist is that an operation unit for controlling the driving and stopping of the motor is provided at a position that can be operated in a state where the telescopic strut is extended.

According to the above arrangement, when the operating section is operated to drive the drive motor with the telescopic support extended,
The angle adjustment mechanism operates to automatically rotate the support rod within a predetermined rotation range, and accordingly, the inclination angle of the support rod changes and the light projection angle of the light changes. Therefore, if the drive of the drive motor is stopped appropriately, the light projection angle from the light is fixed at an appropriate position for illuminating the light projection location.

More specifically , when the operating unit is operated to drive the drive motor with the telescopic strut extended, the support rod becomes
The tilt angle of the mounting frame changes by automatically rotating between the tilt position closest to the pedestal at the upper end of the column and the tilt position farthest away from the pedestal , and the light projection angle of the light changes accordingly. Therefore, if the drive of the drive motor is stopped appropriately, the light projection angle from the light is fixed at an appropriate position for illuminating the light projection location. Further, when the support rod is in the inclined position closest to the pedestal at the upper end of the support, there is a gap between the support rod and the upper end of the support to such an extent that there is no danger of the operator's hand or finger being caught. Therefore, even if the worker places his / her hand on the upper end of the column and the drive motor is driven in that state to rotate the support rod,
There is no danger that the worker will get his hands, fingers, etc. caught between the support rod and the pedestal at the upper end of the support.

[0008] Further, in the case of the structure as described in claim 2 ,
When the worker or the like worked an external force to the mounting frame and the support rod or the like is rotated back and forth direction of the above defined so as to arbitrarily set the angle of the light manually, middle portion of the transmission mechanism to contact the motor and the rotary plate In this case, the torque adjusting member idles, and an external force exceeding the specified value by the worker or the like is not transmitted to the motor.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a light projector according to the present invention will be described below with reference to FIGS. In this embodiment, as shown in FIGS. 1 and 2, there is shown a floodlight A having two lights 3 and 3 mounted on an upper end of a telescopic support 2 erected on a truck 1. A indicates that the lights 3 are mounted on the upper end of the column 2 via mounting members such as the mounting frame 4 and the support rod 12, and the mounting member is moved in the front-rear direction by the operation of the angle adjusting mechanism 5 linked to the mounting member. To automatically adjust the light projection angles of the lights 3 and 3. 6
Is a generator serving as a power source for the light 3 and is mounted on the cart 1.

The truck 1 is provided with wheels 1a on the front, rear, left and right, and a link mechanism (not shown) provided on the lower surface of the truck links the rotation of a handle 7 provided upright on the rear of the truck with the rotation of predetermined wheels 1a. The wheel 1a is turned in a predetermined direction by the turning operation of the handle 7, and the bogie 1 is steered.

The telescopic strut 2 has a base pillar 2a at the rear of the carriage 1.
In the base column 2a, at least one middle tube column whose inner diameter is sequentially reduced with respect to the base column 2a, in this embodiment, two middle tube columns (the first middle tube column 2b, 2nd middle pipe column 2
c) is loosely fitted in a vertically slidable manner,
The height of the light 3 is adjusted appropriately by sliding the 2c up and down with any lifting means.

The means for vertically sliding the middle tube columns 2b and 2c is provided with pulleys at predetermined positions of the respective tube columns 2a to 2c, and wraps a wire between the respective pulleys to connect the ends of the wires to a winch. The known winding mechanism is adopted. The winding mechanism is well known in this kind of technical field, as disclosed in JP-A-63-189577 and JP-A-63-189578, and is not shown.

A mounting tube 8 is projected from the upper end of the second middle tube post 2b, and a strip-shaped pedestal 9 is fixed to the upper end of the mounting tube 8. 1 is supported substantially horizontally along the width direction.

At the upper end of the telescopic support 2, that is, the pedestal 9, right and left support shafts 10, 10 are protruded at both ends in the longitudinal direction, and both support shafts 10 support the support rod 12 on the upper surface side of the pedestal 9. Is rotatably supported. That is, each support shaft 10
The mounting rings 11 are rotatably fitted on the outer periphery of the mounting rings 11, and mounting pieces 11 a are protruded from the peripheral surface of each mounting ring 11, and these mounting pieces 11 a are fixed to the front positions at the left and right ends of the support rod 12, With the support rod 12 in a state where its longitudinal direction is along the width direction of the bogie 1,
In addition, it is mounted and supported on the pedestal 9 so as to be rotatable around the support shaft 10 in the front-rear direction of the trolley 1.

The rear surface of the support rod 12 is provided with an angle adjusting mechanism 5.
And the support rod 12 rotates between an inclined position closest to the pedestal 9 (position shown in FIGS. 4 and 6) and an inclined position most separated from the pedestal 9 (position shown in FIG. 8). The support rod 12 is automatically rotated within the range by the operation of the drive motor 15 which is a drive source, and the rotation range is restricted within the rotation range with the stop of the drive motor 15. It is configured to be supported in a state inclined at a predetermined angle.

The angle adjusting mechanism 5 is formed between a shaft 14 rotatably supported at a position parallel to the pedestal 9, a drive motor 15 mounted near the pedestal 9, and the motor 15 and the shaft 14. A first rotating plate 17 fixed to left and right ends of the shaft 14 and rotated eccentrically with the rotation of the shaft 14;
And second rotary plates 18, 18 rotatably mounted on each first rotary plate 17 and eccentrically rotating with the rotation of the first rotary plate 17.
And a connecting rod portion 18b formed on the outer periphery of the second rotating plate 18.
The shaft 14 is rotated in a predetermined direction via a gear mechanism 16 by the driving of a drive motor 15. Accordingly, the first rotary plate 17, the second rotary plate 18, and the connecting rod portion 18b are eccentrically rotated, and the support rod 12 is automatically rotated while its rotation range is restricted as described above. .

A box 21 for accommodating the gear mechanism unit 16 is mounted on the pedestal 9, and the rotation drive shaft 15 a is connected to the shaft 1 by a support member 22 extending from the box 21.
The drive motor 15 is supported in the vicinity of the pedestal 9 so as to intersect with 4 and project into the box 21. Drive motor 15
Is electrically connected to an operation section 15 'provided at a position where the operator can operate the pole 2 in a state where the support column 2 is extended, and the operation section 15' is operated to drive on and off. The motor 15 can be screwed directly to the box 21 without using the support member 22. The mounting position of the motor 15 is not limited to the position below the pedestal 9 as shown in FIG. , 18 can be changed in a range that does not hinder the rotation.

The gear mechanism section 16 is externally mounted on the drive shaft 15a and is driven to rotate in a predetermined direction by the drive of the drive motor 15, and is externally mounted on the shaft 14 and meshes with the worm 16a. A worm gear 16 for rotating the shaft 14 in a predetermined direction by rotating the worm 16a
b.

The first rotating plate 17 has a substantially oval base 17a.
And an attachment portion 17c supported by an arm piece 17b protruding from a side surface of the base portion 17a so as to be positioned parallel to the base portion 17a. The base portion 17a, the arm piece 17b, The outer peripheral edges of the mounting portions 17c and their continuous locations are formed by straight lines and curved lines. Also, the mounting portion 17c is located at an eccentric position off the center of the base 17a,
A through hole 17 into which a middle portion of the small diameter portion 14c of the shaft 14 is loosely inserted.
Then, a hole 17e into which the tip of the small diameter portion 14c is loosely inserted is formed in the base 17a.

On the other hand, the shaft 14 is rotatably supported by the left and right bearings 13 and 13 projecting from the pedestal 9 in a state parallel to the pedestal 9 and has fitting surfaces 14a formed at both left and right ends thereof. To fit and fix the spacer 23
A small-diameter portion 14c formed with a threaded portion 14b on the peripheral surface is protruded,
From the base end side of each small diameter portion 14c, the torque adjusting members 24 are sequentially arranged.
After loosely fitting the mounting portion 17c of the first rotating plate, the screw portion 14b
The mounting portion 17c and the torque adjusting member 24 are tightened in the direction of the step portion 14d at the base end of the small-diameter portion 14c with a nut 25 screwed into the shaft. The rotational drive of the shaft 14 is transmitted to the mounting portion 17c via the torque adjusting member 24, The one rotation plate 17 is configured to rotate eccentrically.

The torque adjusting member 24 is provided with the small diameter portion 14c.
Consists of a predetermined number of washers 24a loosely fitted to
By adjusting the tightening force of the nut 25, the pressure contact force between the adjacent washers 24a is appropriately adjusted, in other words, the torque of the mounting portion 17c fastened to the shaft 14 via the torque adjusting member 24 is appropriately adjusted. The first rotary plate 17 is eccentrically rotated together with the torque adjusting member 24 by the rotation drive of the shaft 14, but when a large force is applied to the small diameter portion 14c to rotate the first rotary plate 17 itself, the torque adjusting member is rotated. 2
The configuration is such that the shaft 4 does not rotate due to the idling of the shaft 4 and an excessive load is not applied to the drive motor 15.

The second rotating plate 18 has a substantially disk-shaped base 18a.
And a connecting rod portion 18b extending from an outer peripheral edge of the base portion 18a.
And a base 1 so that no corners are formed in the outer peripheral portion.
8a, the connecting rod 18b, and the outer peripheral edge of the connecting portion thereof are formed by straight lines and curved lines. The eccentric position deviated from the center of the base 18a is rotatably fixed to the second eccentric position of the base 17a of the first rotary plate by the shaft attaching portion 26, and the tip of the connecting rod portion 18b is fixed to the shaft fixing portion 20. As a result, the base 18a and the connecting rod 18b are eccentrically rotated with the rotation of the first rotary plate 17, whereby the supporting rod 12 is moved to the pedestal 9 most. It is configured to rotate between an approaching inclined position and an inclined position most distant from the pedestal 9.

The first rotating plate 17 and the second rotating plate 18
As described above, the corners are not formed in the outer peripheral portion, and the rotary plates 17 and 18 are eccentrically rotated by the motor 15 in a direction in which the outer peripheral edges of the rotary plates 17 and 18 are always separated from each other. As a result, the shaft attachment portions 26 are rotatably fixed to each other.

Further, a stop position of the shaft attaching portion 26,
By appropriately setting the formation position, the shape, and the size of the connecting rod portion 18b, when the supporting rod 12 is in the inclined position (the position in FIGS. 4 and 6) closest to the pedestal 9, the supporting rod 12 and the supporting rod 12 operator's hand, finger or the like is supported on the possibility of free extent (eg about 5cm) to ensure a gap S ₁ of and the support rod 12 is inclined with a relatively small inclination angle is interposed between the pedestal 9 On the other hand, when the support rod 12 is in the inclined position (the position in FIG. 8) farthest from the pedestal 9, a gap S ₂ larger than the gap S ₁ is secured between the support rod 12 and the pedestal 9. The rod 12 is supported so as to be inclined at a relatively large inclination angle.

Lights 3 are provided on both sides in the longitudinal direction of the support rod 12 rotatably supported as described above, via mounting frames 4 and 4. The mounting frame 4 is provided with side frames 4b, 4b at both left and right ends of the lower frame 4a. The lower frame 4a is fixed to the upper surface of the support rod 12 by welding or bolt and nut fastening, and the side frames 4b, 4b The light 3 is rotatably supported between the mounting frame 4 so that the angle can be manually adjusted.

According to the floodlight of this embodiment configured as described above, the driving motor 15 is driven by operating the operating section 15 'with the telescopic support 2 shown in FIG. Then, the driving force of the motor 15 is transmitted to the first rotary plate 17 via the transmission mechanism 40 including the gear mechanism 16, the shaft 14, the torque adjusting member 24, and the like, and the rotary plate 17 is eccentrically rotated. Accordingly, the second rotating plate 18 is eccentrically rotated, and the supporting rod 12 is inclined closest to the pedestal 9 (position shown in FIG. 6) as shown in FIGS. It automatically rotates between the inclined position (the position in FIG. 8) and the inclination angles of the left and right mounting frames 4 and 4 change, and accordingly, the light projection angles of the lights 3 and 3 change. Therefore, if the driving of the drive motor 15 is stopped appropriately, the light projection angle from the lights 3 and 3 is fixed to an appropriate position for illuminating the light projection location.

When the support rod 12 is in the inclined position closest to the pedestal 9, the above-mentioned gap S ₁ is secured between the support rod 12 and the pedestal 9. Even if the operator places his / her hand on the pedestal 9 in a state where is contracted, and the drive motor 15 is driven in that state, there is a possibility that the operator may get a hand, a finger or the like between the support rod 12 and the pedestal 9. There is no. As shown in FIGS. 6 to 9, the first rotating plate 17 and the second rotating plate 18 are eccentrically rotated in a direction in which the outer peripheral edges of the two rotating plates 17 and 18 are always separated from each other. Even if a hand, a finger or the like is placed around the plates 17 and 18 and the drive motor 15 is driven in that state, both rotating plates 1
There is no fear that a hand, a finger or the like will be pinched between 7 and 18. Also,
Since the gear mechanism 16 is housed in the box 21, even if the operator places his / her hand, finger, etc. around the motor 15, the drive motor 15 is driven in that state, the hand, finger, etc., are moved by the worm 16a, the worm gear 16b, and the like. There is no risk of damage. Therefore, it is possible to appropriately adjust the light projection angles of the lights 3 and 3 in the extended state of the column 2 and to provide a light projector with high safety.

Further, the rotational driving force of the motor 15 is transmitted to the rotary plate 17 in the middle of the transmission mechanism 40 which operates by the drive of the drive motor 15 to eccentrically rotate the first rotary plate 17. A torque adjusting member 24 that does not transmit the external force to the motor 15 by idling against the external force to be rotated is provided, and an operator or the like manually moves the mounting frame 4 and the support rod 12 in the front-rear direction so that the angle of the light 3 is arbitrarily set. When a large force is exerted by rotating the shaft, the torque adjusting member 24 idles and the shaft 14 does not rotate.
There is an advantage that the durability and the service life can be improved by eliminating the possibility that an excessive load is applied to the motor.

FIGS. 10 and 11 show the torque adjusting member 24.
Is stored in the box 21 together with the gear mechanism 16. That is, in this example, the worm gear 16b of the gear mechanism 16 is mounted in a loose fit so as to maintain the gap 16c with respect to the shaft 14, and the rotation of the worm gear 16b is It is configured to be transmitted to. The shaft 14 is rotatably supported by left and right bearings 13, and is provided with fitting surfaces 14 a on both left and right ends thereof and a small diameter portion 1 having a threaded portion 14 b formed on a peripheral surface.
4c is provided. The through hole 17d 'of the mounting portion 17c of the first rotary plate is fitted to the fitting surface 14a, and the screw portion 14b
The first rotating plate 17 is configured to be eccentrically rotated integrally with the shaft 14 by preventing the attachment portion 17c from falling off by the nut 25 screwed into the shaft. The gear mechanism 16 includes a worm 16a that is rotated by the drive of the drive motor 15 and a worm gear 16b that is rotated by the rotation of the worm 16a.
The worm gear 16b is integrally provided with a skirt portion 16b 'protruding from the side surface, and is mounted on the shaft 14 together with the skirt portion 16b' in a loose fit state.

Collars 30 and 31 are fitted to both ends of the shaft 14 portion accommodated in the box 21, and the collars 30 and 31 are immovably fixed to the shaft 14 using pins 32. Worm gear 16b
A threaded tube portion 33 extending in the direction is provided integrally. Further, a predetermined number of washers 24 are provided between the pipe portion 33 and the worm gear 16b and between the other collar 32 and the skirt portion 16b.
a torque adjusting member 24 is loosely fitted to the shaft 14, and the tightening nut 3 is screwed into the pipe portion 33.
4, the torque adjusting member 24 and the worm gear 16b are tightened in the direction of the collar 31 by tightening the locking nut 35;
The rotational drive of the worm gear 16b is controlled by the torque adjusting member 24,
The first rotating plate 17 is transmitted to the shaft 14 via the collars 30 and 31 so as to rotate eccentrically. The nut 3
4 by appropriately adjusting the pressing force between the adjacent washers 24a, in other words, appropriately setting the torque of the worm gear 16b fastened to the shaft 14 via the torque adjusting member 24. And the worm gear 16b
The first rotary plate 17 is eccentrically rotated with the rotation of the shaft 14 by the rotational drive, but when a large force is applied to rotate the first rotary plate 17 itself, the torque adjusting member 24 idles and the worm gear 16b The drive motor 15 is configured not to rotate and not to be loaded.

According to the above configuration, the driving force of the motor 15 is transmitted to the first rotary plate 17 via the transmission mechanism 40 including the gear mechanism 16, the torque adjusting member 24, the shaft 14, and the like, and is transmitted to the first rotary plate 17. Rotates eccentrically. Accordingly, the second rotating plate 1
8 rotates eccentrically, the support rod 12 automatically rotates as shown in FIGS. 6 to 9, and the light projection angle of the lights 3 changes as the inclination angle of the mounting frame 4 changes. Therefore, if the drive of the drive motor 15 is stopped appropriately, the light projection angle from the light 3 is fixed at an appropriate position for illuminating the light projection location. On the other hand, when the worker or the like manually rotates the mounting frame 4 and the supporting rod 12 in the front-rear direction to arbitrarily set the angle of the light 3 and a large force acts, the shaft 14 rotates but the torque adjusting member is rotated. 24 idles and the worm gear 16b does not rotate,
Therefore, there is an advantage that the durability and service life of the drive motor 15 can be improved by eliminating the possibility that an excessive load is applied to the drive motor 15. In addition, the torque adjusting member 24, the collars 30, 31,
The tightening nut 34, the locking nut 35 and the like are the gear mechanism 1
Since the shaft 14 is housed in the box 21 together with the shaft 6, only the bearing 13 and the rotating plates 17, 18 are exposed at the end of the shaft 14 so that the periphery of the shaft 14 is neat, and improvement in design and safety can be expected.

Although the two-lamp type floodlight has been described above, the present invention is not limited to this, and can be applied to a single-lamp or triple-lamp type (usually a four, six, eight-lamp type). In addition, the telescopic strut is not limited to the three-stage structure as described above, and it is needless to say that the telescopic strut can be adapted to a two-stage structure or a four-stage or more telescopic strut. The mounting member for mounting the light 3 on the upper end of the column 2, the angle adjusting mechanism of the mounting member, and the drive source are not limited to those described above in terms of structure, shape, etc., and do not depart from the scope of the present invention. It goes without saying that various modifications are possible.

[0033]

Since the present invention according to the present invention has a structure according to claim 1, supported by operating the operation unit in a state where the telescopic strut was stretched
By rotating the rod and stopping the rotation in a timely manner, the light projection angle from the light can be adjusted to an appropriate position. Therefore, since the post is extended after the operator sets the light projection angle arbitrarily based on empirical rules and intuition, the light projecting part is often shifted, and it is necessary to contract the post and readjust it again. The present invention has provided a novel light projector that is easier to operate and can obtain an appropriate light projection angle as compared with a conventional light projector.

Further, even when the support rod is at the inclined position closest to the pedestal at the upper end of the column, a predetermined gap is secured between the support rod and the upper end of the column. Therefore, in addition to the above-mentioned effect that an appropriate light projection angle can be obtained by an easy operation, excellent safety can be obtained without a possibility that a hand, a finger or the like is caught between the support rod and the pedestal at the upper end of the support. A floodlight can be provided.

Furthermore when configured as in claim 2, worked force the mounting frame and the support rod or the like is rotated back and forth direction of the above provisions to operator or the like can be arbitrarily set the angle of the light manually In this case, the torque adjusting member idles in the middle of the transmission mechanism that connects the motor and the rotating plate, and the external force of the worker or the like is not transmitted to the motor. Therefore, there is an advantage that the durability and the service life of the motor can be improved without fear that an excessive load is applied to the motor.

[Brief description of the drawings]

FIG. 1 is a side view of a floodlight according to the present invention, showing an extended state of a column.

FIG. 2 is a rear view of a main part of the floodlight according to FIG. 1, showing a contracted state of a support.

FIG. 3 is an enlarged view of a main part of FIG. 2, partially cut away.

FIG. 4 is a sectional view taken along lines (X)-(X) in FIG. 3;

FIG. 5 is a partially enlarged sectional view of FIG. 3;

FIG. 6 is a side view of a main part for explaining rotation of the support rod, and shows an inclined position where the support rod comes closest to the upper end of the support.

FIG. 7 is a side view of a main part for explaining rotation of a support rod.

FIG. 8 is a side view of a main part for explaining rotation of the support rod, and shows an inclined position where the support rod is most separated from the upper end of the column.

FIG. 9 is a main part side view for explaining rotation of the support rod.

FIG. 10 is a partially enlarged sectional view showing another example of the torque adjusting mechanism.

FIG. 11 is a right side view of FIG.

FIG. 12 is a side view of a conventional floodlight, showing a contracted state of a column.

FIG. 13 is a plan view of FIG. 12;

[Explanation of symbols]

 1: Bogie 2: Telescopic column 3: Light 4: Mounting frame 5: Angle adjustment mechanism 9: Pedestal 10: Support shaft 12: Support rod 14: Axis 15: Drive motor 17: First rotary plate 18: Second rotary plate 18b : Connecting rod 20: Shaft stopper 24: Torque adjusting member 40: Transmission mechanism

Claims (3)

(57) [Claims] A trolley is provided on an upper end of a telescopic support column erected on the trolley.
The supporting rod is supported along the width direction, and is fixed to the supporting rod.
A floodlight comprising a fixed number of mounting frames and a light mounted on the mounting frame.
The support rod is rotatably supported on the upper surface of the base by the support shaft
At the same time, the rear side of the support rod rotates eccentrically by the drive of the drive motor.
A first rotating plate, and rotatably attached to the first rotating plate.
A second rotating plate that rotates eccentrically with the rotation of the rotating plate,
Connect the tip of the connecting rod formed on the outer periphery of the rolling plate
Angle adjustment with a pivoting part that pivotally attaches to the surface part
Connected to a mechanism, by driving the drive motor, first rotating plate, the second rotary plate and
The connecting rod part is eccentrically rotated, and the supporting rod is moved to the support
The inclined position closest to and away from the seat
Rotate back and forth between the position and stop the drive motor
In a state of being tilted at a predetermined angle within the rotation range
And the support rod is closest to the pedestal at the upper end of the support.
Between the support rod and the pedestal
Make sure that there is no gap between hands and fingers
And an operation unit for controlling the driving and stopping of the driving motor ,
A floodlight is provided at a position operable when the telescopic support is extended. 2. Between the drive motor and the first rotating plate.
And the first rotating plate is eccentrically operated by the drive of the drive motor.
Forming a transmission mechanism for rotating, the transmission mechanism further comprising
In the middle, the rotational driving force of the motor is transmitted to the first rotating plate
Is idle against the external force to rotate the first rotating plate, and
The floodlight according to claim 1, further comprising a torque adjusting member that does not transmit a force to the motor . 3. The first rotating plate and the second rotating plate are formed in an outer peripheral portion.
The outer edge should be straight and curved so that no corners are formed
3. The floodlight according to claim 2, wherein the floodlight is formed by: