JPH0422393Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a flag hoisting machine.

[Background of the idea]

Conventionally, flag hoisting machines for hoisting flags such as national flags have a pulley attached to the top end of a pole buried in the ground, a rope for hoisting the flag is hung from the pulley, and the rope is pulled by hand to raise the flag. By attaching a spool to the above-ground part of the pole for winding the rope, and inserting a manual handle or a rechargeable electric screwdriver, etc. into the rotating shaft of this spool, the rope can be rotated forward and backward. There were people raising and lowering flags.

However, with the method of pulling the rope by hand, there is a risk of getting your hands and clothes dirty, and after hoisting the flag, you have to tie the rope to a hook attached to a pole, for example, to make the flag stronger. If the flag must be fixed or uses a manual handle or electric screwdriver, store it in a separate location from the pole so that it does not get lost, and carry it to the pole location each time you raise the flag. It is extremely complicated in terms of management and operation, such as having to go to the spool, insert it into the spool, and operate it.

The present invention was devised against this background, and its purpose is to automatically raise and lower the flag without using any operating parts, and to raise and lower the flag smoothly at a constant speed. To provide a flag hoisting machine which is easy to use and can carry out such operations without causing rope entanglement.

[Structure of the idea]

The flag hoisting machine according to the present invention includes a solar battery attached to the upper end of the pole, a storage battery for charging the superpower of the solar battery, an operation unit for controlling the polarity of the current of the storage battery, and a solar battery for charging the superpower of the solar battery. The device is equipped with a DC motor to which power is supplied from the storage battery through the operation part, a spool rotated by the DC motor, and a rope for hoisting the flag wound around the spool. achieved.

〔Example〕

Embodiments of the flag hoisting machine according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a partially cutaway cross-sectional view of the upper end of a pole showing an embodiment of the present invention, where 1 is a pole, 2 is an upper lid for covering the upper end of the pole, and 3 is a solar cell.

The pole 1 is formed into a cylindrical shape, and a pulley 4 is attached to the upper end. A rope 5 is hung from this pulley 4, and one end of the rope 5 is attached to a pole 1.
while hanging the other end inside the pole 1.

The upper lid body 2 is made of a transparent resin having weather resistance, such as acrylic or polycarbonate.
The upper lid body 2 is fixed to the wide portion 1a provided at the upper edge of the pole 1 by screwing the mounting bracket 6 at a plurality of locations.

A solar cell 3 is provided at the upper part of the inner surface of the upper lid body 2.
is installed. This solar cell 3 is formed by providing a semiconductor junction in crystalline silicon or amorphous silicon, and is potted (sealed) or adhered to the upper lid body 2 with a transparent resin 7 such as silicone resin or EVA resin. Ru.

In FIG. 1, 8 is a lead wire for extracting the starting force of the solar cell 3, and this lead wire 8 is guided to the driving device part below the pole 1 along the inner wall of the pole (the second (see figure).

FIG. 2 is a cutaway view of the drive device portion of the flag hoisting machine according to the present invention. Inside the pole 1 are a storage battery 9 for charging the superpower of the solar cell 3, a DC motor 10 driven by the storage battery 9, and a spool 1 for winding a rope rotated by the DC motor 10.
1 is stored. Further, the side wall of the pole 1 is provided with an operating section 12 consisting of a push button switch or the like covered with a resin film 12a.

The operation section 12 includes push button switches 31, 3.
Front plate 12c where 6, 37, 38 are inserted
A recess and a through hole are formed in the. A small piece 12d made of metal, resin, etc. is interposed between the push button switches 31, 36, 37, 38 in the recess and the resin film 12a. Therefore, the resin film 12
Even if a nail, twig, etc. is accidentally inserted into the through hole from side a, no cracks will occur in the resin film 12a.

The storage battery 9 is composed of a Nikkad type storage battery or a lead sealed type storage battery.

A gear 14 is provided on the shaft of the DC motor 10.
is inserted, and from this gear 14, spur gear 1
5 and 16 to the shaft core 18 as rotational motion.

In addition, in FIG. 2, 21 is a shaft for manual operation provided at the tip of the shaft core 18. This manual operation shaft 21 is hidden by a panel 20 screwed to the side wall of the pole 1.

In particular, since a manual operation shaft 21 for driving the shaft core 18 is provided so that a manual handle (not shown) can be loaded, for example, the storage battery 9 may become over-discharged and the DC motor 10 cannot be driven. Even if it gets old, it will not affect the flag raising function.
Furthermore, by removing the panel 20, it can also be used as an oil filler port.

A cam 17 and a spool 11 are inserted into the shaft core 18 . This cam 17 is fixedly inserted into the shaft core 18 and always rotates in the same direction as the shaft core 18 as the shaft core 18 rotates. This cam 17
A stop member 15 is provided in contact with the stop member 15 so as to move up and down starting from one end with rotation. The spool 11 has a one-way clutch mechanism in which a plurality of bearings 19 are interposed so that the spool 11 can rotate freely in only one direction with respect to the axis 18, and a stop member 15 is attached to the side wall of the spool 11 when the stop member 15 is lowered. A stop member 22 is provided so as to prevent the spool 11 from reversing upon collision with the stop member 22.

In the above configuration, when hoisting the flag, the third
As shown in Figure a, by rotating the DC motor 10 and rotating the axis 18 in the A direction, the spool 11 is simultaneously rotated in the A direction and the flag is hoisted. At this time, the spool 11 also rotates because the stop member 22 lifts the stop member 15. Also, the third
As shown in FIG. b, even if a torque in the B direction is applied to the spool 11 due to the weight of the flag after hoisting the flag, only the spool 11 will not be reversed in the B direction. That is, since the stop member 22 and the stop member 15 prevent the spool 11 from reversing, the next time the flag is lowered, the polarity of the current in the storage battery 9 must be changed as shown in FIG. 3c. By rotating the DC motor 10 in the opposite direction and rotating the shaft core 18 and eccentric cam 17 in the C direction, the stop member 15 is lifted by the eccentric cam 17, and the spool 11 is moved to C due to the weight of the flag, etc. It rotates in the direction and the flag is lowered.
In this case, if the rotational speed of the spool 11 increases, it is reduced by the bearing 19 and the shaft core 18. Therefore, the shaft core 18 and the spool 11 always rotate at substantially the same speed. As a result, the rope 5 never becomes loose or tangled.

It should be noted that a plurality of the stop members 22 may be provided in order to reliably prevent the spool 11 from reversing, and the cam 17 is not limited to a perfect circle, but may be formed into an irregular shape with a portion protruding.

FIG. 4 is a block diagram showing the electrical configuration of the present invention.

The solar cell 3 is connected to a storage battery 9 through a backflow prevention diode 30, and the storage battery 9 is connected to a chattering prevention circuit 32, a timer circuit 33, a forward/reverse control circuit 34, and an overcurrent detection circuit 35 through a power switch 31, respectively. It is connected. Further, the direct current motor 10 is connected to the forward/reverse control circuit 34 . In FIG. 4, numeral 36 is a push button switch for raising, numeral 37 is a push button switch for stopping, and numeral 38 is a push button switch for lowering, each of which is connected to the forward/reverse rotation control circuit 34 via the chattering prevention circuit 23.

In the above configuration, when the power switch 31 is closed and the lift push button switch 36 is closed, the DC motor 10 rotates in the forward direction, and the motor 10 becomes overloaded after hoisting the flag. This is detected by the overcurrent detection path 35 and the DC motor 10 is stopped. Next, when the lower push button switch 38 is closed, the DC motor 10 rotates in the opposite direction.
The DC motor is stopped after a predetermined time set by the timer circuit 33. Incidentally, in either case of raising or lowering, the operation can be stopped by the stop push button switch 38.

[Effect of idea]

As described above, according to the flag hoisting machine according to the present invention, the solar cell attached to the upper end of the pole,
a storage battery for charging the electromotive force of the solar cell;
an operating unit for controlling the polarity of current in the storage battery; a DC motor to which power is supplied from the storage battery via the operating unit; a pool rotated by the DC motor; and a pool wound on the spool. Since the flag-raising machine is equipped with a flag-raising rope, the flag can be raised and lowered using the electromotive force of the solar cell, and an easy-to-use flag-raising machine that does not require maintenance or complicated operations can be provided.

In addition, since the motor is driven by the electromotive force of the solar cell to raise and lower the flag, the flag can be raised and lowered smoothly at a constant speed, making it possible to raise and lower the flag in time with the end of the national anthem, school song, etc. The flag can be raised and lowered.

Furthermore, since the spool for winding up the flag-raising rope is rotated by a DC motor, it is possible to provide a flag-raising machine in which the rope does not become loose or tangled.

[Brief explanation of the drawing]

Fig. 1 is a partially cut-away cross-sectional view of the upper end of the pole showing an embodiment of the flag hoisting machine according to the present invention, Fig. 2 is a cut-away view of the drive unit, and Fig. 3 a, b, and c are the spool parts. FIG. 4, which is a diagram for explaining the operation, is a block diagram showing the electrical configuration of the present invention. 1...Pole, 3...Solar cell, 4...Pulley,
5... Rope, 9... Electricity storage, 10... DC motor, 11... Spool, 12... Operating unit.

Claims (1)

[Scope of utility model registration request] A solar cell attached to the upper end of the pole, a storage battery for charging the starting force of the solar cell, and an operation unit for controlling the polarity of the current of the storage battery;
A flag hoisting machine comprising: a DC motor to which power is supplied from the storage battery via the operating section; a spool rotated by the DC motor; and a flag hoisting rope wound around the spool.