JPS59165301A - Projecting machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Road construction is often carried out at night due to road conditions, and the nature of the construction means that the work site is moved, so a night light that can be moved at night is desired and can quickly arrive at the site. It was desired to illuminate a wide area. Conventionally, a large number of lamps were installed at the memorial site, a lamp was fixed on the ladder of a ladder truck for illumination, or a pipe was expanded and contracted using hydraulic pressure and a lamp was installed at the top of the pillar for lighting. There are some that use light beams, and some that expand and contract tube groups using ropes, but they are used only for expanding and contracting the tubes, and the reduced size is loaded on a vehicle, or the reduced size of the tube group. However, since there are two winches, it is difficult to automate the process.

Figure 1 shows a conventional rope hoisting type projector with two winches.First, it is pulled up with a lifting winch 60, and the winch 30 is stopped in a vertical position. The pipe post 33 was fixed using the lift winch 61, and then the pipe post 62 was raised by hoisting the elevating winch 61. However, since two winches were used, the mechanism was complicated and it was difficult to automate this process. .

In view of the above circumstances, the present invention uses one winch to raise the tube column vertically from the retracted state and extend the tube column to raise and stop the ramp, or to lower the ramp to a horizontal position. To provide a projector that can automatically store the projector in a certain position.

In the present invention, when a rope is hoisted up by a winch, the pulley fM at the lower end of the large canal column first pulls the rope fixed to the lower end of the small tube column, and the small tube column is fixed to the large tube column. It rotates around a shaft 15 fixed to the column, and when it becomes vertical, the small tube column rises, and when the winch stops, the small tube column also stops.

Next, one embodiment of the present invention will be described.

In FIG. 2, reference numeral 1 denotes a floodlight, which is attached to the top of the tube column 2. The figure shows the retracted state, with the pipe column horizontal and the sub-pillar 11
It rests on the buffer rubber 13 above. Pipe post 2 is fitted into pipe post 3, 4.4F, 5 is a corner fitting welded to the - corner, 4.4
1 is attached to the inside of the upper end of the tube column 2, and the corner tool 5 is attached to the lower end of the tube column 2, and a certain gap is maintained between the tube column 2 and the tube column 3. One end of the wire rope 12 is fixed to the lower end of the tube column 2, follows the gap between the tube columns 2.6, is attached to the upper end of the tube column 3, passes through the attached pulley 6.7, and is attached to the lower end of the tube column 3. It is fixed to the drum of the winch 10 via a pulley 8 and a pulley 9 attached to a column 14.

The pillar 14 is fixed to the underframe 29 and at the top! 1H15 is installed, and the shaft hole of the tube column 3 is fitted and is rotatably mounted, but the shaft 15 is mounted eccentrically so that a counterclockwise moment acts in the vertical position.

A b-shaped stopper 16 is rotatably attached to a pin 17 fixed to the tube column 6, and the tension spring 1
8 pulls the tube column 2.3 towards the liver. In the horizontal retracted state, the locking holes 20,22 are aligned, thus preventing the tube column 2 from sliding inside the tube column 3 by entering the locking holes.

When the tube column 6 is raised up and almost hanging down, the release piece 23 fixed to the column 14 comes into contact with the stopper 16, and the lock of the tube column 2 is released. The notch 261 is an automatic locking notch that locks the tube column 5 when the tube column 6 is in the vertical position to prevent it from falling due to wind or other abnormal moments. Since a counterclockwise rotational moment is applied by the spring, when the locking hole 27 passes, the lock 2
The tip 26 of No. 5 enters the notch 261 and is securely locked.

Next, we will discuss the effect. Stand the pillar of floodlight 1 vertically,
To stretch it out, turn the handle of the winch 10 and pull the wire lobe 12 in the direction of the arrow. Since the other end of the wire lobe 12 is fixed to the lower end of the tube column 2, the tube column 2 is pulled to the left. It will be done. However, stopper 1
9 has entered the hole 20 of the tube column 2, the tube column 2 does not move. Therefore, the wire lobes 12 under tension move the pulley 8 to the pulley 9.
Since it is pulled in the direction of , the tube column 6 starts to rotate around the shaft 15. When the tube column 6 is raised vertically and comes into contact with the column 14 and becomes vertical, the release metal fitting 23 pushes up the stopper 16 and the stopper tip 19 comes out of the locking hole 20 of the tube column 2. At the same time, the lock claw 26 is inserted into the locking hole 27 at the bottom of the tube column 5 =ls.
It fits into the hole and is firmly fixed with a spring. When the wire lobe is wound up, the tube column 2 rises, so when the desired position is reached, the work is completed by stopping the winch, and by turning on the power switch of the lamp, the predetermined location is illuminated.

Next, lock handle 24 is used to store the entire finished layer.
If you raise and rotate winch 10 in the opposite direction, wire lobe 2
Since the shaft 15 supporting the tube column 2 supports the right side of the center of gravity of the entire tube column, the group of tube columns first begins to descend due to gravity and when the tube column 2 completes its descent, the entire tube column is It rotates counterclockwise and when it becomes horizontal and touches 13, the winch is stopped and the winch is in the retracted state.

The above operations can be made automatic by replacing the manual winch with an electric winch. FIG. 5 shows an example of wiring. A reversible switch 47 is provided on the winch motor so that when the winch motor is turned to the right, the small tube column rotates upward in the normal direction, and when it is tipped to the left, the small tube column rotates downward in the reverse direction. If the winch is 6-phase motor, 2fi in 6 wires of motor salt from reversible switch! The motor is controlled by two sets of pushbutton switches (push to turn off, release to turn off) and limit switches (normally closed) connected in series. One of the circuits is for ascending, the other is for descending, 1
The ascending limit switch 50 is attached to the large pipe column, and the dog provided on the small pipe column opens the normally closed limit switch when the small pipe column finishes rising, and the descending limit switch 51 is attached to the small pipe column when the small tube column finishes rising. The normally closed switch is configured to open when the tube column group is lowered and placed in a horizontally retracted state.

With the above configuration, when the reversible switch 47 is set to normal rotation (ascend) and the rising single pushbutton switch 48 is pressed, the motor rotates, the pipe column rises, and the dock of the small pipe column opens when the lifting limit switch 50 is opened. If so, the motor 52 stops. Even if the pushbutton switch 48 is released and pressed again, the motor 52 remains stopped because the limit switch 50 is turned off. Next, reverse the reversible switch 47 (down)
When the lowering push button switch is pressed, the lowering limit switch 51 is turned on, so the motor 52 rotates and the small tube column descends, and the horizontal position is retracted. When the lowering limit switch 51 is turned off, the motor stops and lowers. ends.

Also, when the canalicular column is rising or falling, the beam I switch 50.
Since 51 is closed, push button switch 4B or 49
If you release , the canalicular column will stop.

FIG. 6 is a sectional view of an embodiment of a tube group composed of four tube columns, in which one end of the first wire loaf 42 is fixed to the lower end of the tube column 34, and the other end is fixed to the gap between the tube columns 64 and 65. It ascends through the gap, passes through a pulley 38 attached to the tube column 65, and is fixed to the metal fitting 25 fixed to the tube column 66 section. Similarly, one end of the second wire lobe 43 is fixed to the lower end of the tube column 35, and the other end is fixed to a metal fitting 46 fixed to the tube column 37 through a pulley 39 fixed to the tube column 36 near the upper end of the second wire lobe 43.

One end of the lower lobe 44 is fixed to the lower end of the tube column 37, and the other end is fixed to the winch drum via a pulley 4'0.41. When the wire lobe 4i is hoisted up with a winch, the tube column 5'4.

As explained in detail above, it is raised with one winch,
By controlling only the movement of the winch as the upward movement or downward movement and leveling are performed continuously, the winch can be set to stop at the highest position and horizontal position, and the ramp can be raised and stopped until it stops rising. Alternatively, the ramp can be completely automatically stopped up to a horizontal stop, and it also has the advantage of being extremely inexpensive to manufacture.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional projector. The second south is a sectional view of the projector of the present invention. FIG. 3 is a cross-sectional view of a tube group composed of four tube columns. FIG. 4 is a perspective view of the projector of the invention. Sai 1F
A is Kaotsu-sama (Rochi-ri). In the figure 1... Floodlight 2... Kokan Katsura°. 5... Large pipe column 6... Pulley 10... Winch 12... Wire lobe 14... Support column 17... Bin 1
8... Tension link 22... Pipe post hole 26... Release fitting 24... Lock handle 25... Lock 26...
Claw 26L...Notch 34...First tube column 6
5...Second tube column 66...Sixth tube column 67...
・4th pipe column 68...pulley 42...1st
Wire Lobe 4ro...Second Wire Loaf 4
4... 5th wire lobe 45... 3rd tube column fitting 46... 4th tube column fitting 47... Reversible switch 48...''Saiitomo 1 Pokun switch 49
...Push button switch for lowering 50...Limit switch for upper row 51...East limit switch 52...
・Winch motor 53...3-phase AC power supply patent applicant Tokushu Denki Kogyo Co., Ltd.

Claims (1)

[Scope of Claims] 1. A lamp is attached to one end of the small pipe pillar υ of two large and small pipe pillars of approximately equal length that slide freely and extendably. In a projector that is rotatably supported on an attached shaft, one end of the wire lobe is fixed near the lower end of the small canal pillar, and the other end is passed through the gap between the small canal pillar and the large canal pillar. It descends along the main pipe column via a pulley fixed at the upper end, passes through a pulley fixed at the lower end, and then
When the wire lobe fixed to the winch drum, the winch that winds up the wire lobe, and the small tube column are almost aligned with the large tube column, the axial movement of the small tube column and the large tube column is stopped, and the tube column rotates to a vertical position. 1. A projector comprising: a locking piece fixed to a large tube pillar; and a locking piece fixed to a large tube pillar, the locking being released by contacting a small piece fixed to a support shaft when the light is turned off. 2. A limit switch that stops the winch when the pipe group is vertical and reaches its maximum length and when the pipe group contracts and reaches the horizontal position, and a changeover switch that allows the winch to rotate forward and reverse. 2. The projector according to claim 1, comprising: 3. The tube column consists of three types of tube columns, small, medium, and dog, that slide and expand and contract. A floodlight is attached to one end of the small tube column, one end of a wire lobe is fixed to the other end, and the other end is a medium tube column. It follows the gap between the tube column and the small tube column, passes through a pulley fixed to the top of the middle tube column, and is fixed to the large tube column. Another wire lobe is fixed at one end to the lower end of the middle tube column, and the large tube column is fixed to the large tube column. The winch drum passes through a gap with the main pipe column, passes through a pulley fixed to the upper end of the large pipe pillar, descends along the outer wall of the large pipe pillar, passes through a pulley at the lower end of the large pipe pillar, and is fixed to the winch drum. 4, the first tube column and the second tube column in the order of sliding expansion and contraction size with respect to each other.
A tube column group consisting of a tube column, a third tube column, and a fourth tube column, and a first tube column.
A floodlight is attached to one end of the tube column, and one end of the wire port is attached to the other end of the first tube column, and the other end rises through the gap between the second tube column and the second tube column. The first wire rope is fixed to the third tube column via a pulley provided at the upper end, and one end of the wire rope is attached to the lower end of the second tube column, and the other end is fixed to the third tube column.
The second wire lobe is fixed to the fourth tube column, and one end of the wire lobe is connected to the lower end of the sixth tube column. The third wire lobe according to paragraphs 1 and 2, comprising a third wire lobe fixed to the winch drum by ascending the gap between the winch drum and the fourth pipe column and touching the pulley attached to the upper end of the fourth pipe column. Floodlight. 5. The projector according to item 1 or 2, characterized in that it is constructed of four or more tube groups in the same manner as described in item 4.