JPH0345274Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to an electric elevator for so-called flag poles, etc., erected to display flags, etc., and the device can be attached and detached from the flag pole at any time. In addition, the flag can be raised and lowered by simply operating a switch via a drive unit that is linked to a timer.

[Conventional technology and its problems]

Generally, flag pole elevators raise and lower flags by winding or letting out a rope around a spool that is rotated by input through a handle, etc. Since a large amount of effort was required to rotate the handle, it was difficult for children with weak physical strength to operate the handle, for example, at school.

In addition, some drive devices using motors were seen, but due to their structure, during the raising and lowering of the flag, the device was pressed strongly against the flag pole side, and the drive part and spool shaft were brought into engagement. If the spool shaft was not maintained, the stopper on the spool shaft would automatically operate and stop rotation, which caused various problems in its handling.

[Means for solving problems]

In view of these circumstances, the present proposal is that in a drive device using this type of motor, the casing can be attached to and removed from a predetermined position on the surface of the flag pole, while the spool shaft on the flag pole side can be inserted into the casing. a drive unit equipped with a torque adjustment ring; a power supply unit for the drive unit; The above-mentioned problems can be solved at once by using an electric elevator with a built-in timer.

[Effect]

With the electric lift for the proposed flag pole, etc., which has the configuration described above, the stopper on the spool shaft is released by attaching and fixing the box to the flag pole, and the flag can be raised and lowered simply by operating the changeover switch and timer. It has a special effect in that it can be performed reliably even when unattended.

〔Example〕

Hereinafter, the configuration of the present invention will be described in more detail based on one embodiment shown in the drawings. In FIG. 3, 1 is a hollow flag pole, 2 is a rope 3 attached to the hollow below the flag pole 1. The winding portion of the spool shaft 2a is protruded so that one end of the spool shaft 2a can be connected to the drive shaft side of an electric elevator, which will be described below, and an appropriate stopper mechanism that stops the rotation of the spool when the electric elevator is attached or removed. This allows the two to be automatically separated.

4 is an electric elevator according to the present invention which is detachably attached to the surface of the flag pole of the winding section 2, and 5 is the installation of a flag F consisting of two slide rings 5a fitted onto the flag pole 1 and a connecting rod 5b thereof. The upper rope 3 is tied to one end of the member.

The figure shows a guide roller for the rope 3 provided at the top of the flag pole 1.

Therefore, the structure of the electric elevator 4 of the above-mentioned proposal is changed to the first one.
To explain in detail based on Figures 2 to 2, 7 is a container box, 8 is a drive unit consisting of a motor 8a that can freely rotate in forward and reverse directions, and a reduction gear chamber 8b that is directly connected to the motor 8a. An appropriate pedestal 7 protruding from the
9 is a torque adjustment ring provided at the shaft end of the drive unit 8;
When the container box 7 is fitted with the spool shaft 2a of the winding section and the rotational torque of the spool shaft 2a is arbitrarily adjusted, and a load above a certain level is generated on the spool when the flag is raised or lowered. , the drive shaft of the drive unit 8 can idle.

Reference numeral 10 denotes a power supply unit for the driving unit 8, which is detachably provided on the lower surface of the container box 7, and 11 is a timer operated by, for example, a spring, and the operating time of the driving unit 8 can be arbitrarily set. Further, reference numeral 12 denotes a changeover switch for stopping the motor 8a in the drive section 8 and selecting the forward/reverse rotation direction.

Note that the power supply section 10 can use any battery such as a dry cell.

On the other hand, 13 is provided protruding from the surface of the flag pole 1,
A locking protrusion 14, which can be engaged with a hook 7b extending from the upper edge of the container box, is also provided on the flag pole 1 and into which a circular fitting portion 7c recessed in the container box 7 is fitted. This is a compatible bearing ring.

Further, numeral 15 in the figure indicates a cord that connects each member within the container box.

Next, to explain how to use the electric elevator 4 and its function, first, when hoisting a flag, the container box 7 is tilted slightly and the circular fitting part 7c of the container box is attached to the support ring 1 on the surface of the flag pole. The hook 7b on the upper edge of the container box is engaged with the locking protrusion 13 on the flag pole, and the container box 7 is attached to the flag pole. In this case, the spool shaft 2 is fixed to the pole.
a fits into the torque adjustment ring 9 at the tip of the drive section of the electric elevator and connects with the drive shaft, and at the same time, the spool stopper is operated to the release side by the pressing force against the spool shaft 2a.

In this state, if the changeover switch 12 is set to the rising side and the timer 11 is set to a predetermined time, the power supply becomes energized, the motor 8a starts, and the flag rises at a substantially constant speed, but the distance traveled Since the required time is proportional, even when unattended, the machine will stop at the desired height within the time set by the timer 11, and
At the same time, the motor 8a also stops.

At this time, the stopper of the winding section 2 is in a released state, but there is no fear that the reduction gear or flag in the drive section 8 will fall due to its own weight.

Additionally, if the timer setting time (i.e., the flag's rising distance) is mistakenly set to be greater than the total length of the flag pole, the flag will stop at the top of the pole, but at the same time the spool will be overloaded. , spool shaft 2a
As a result of the increased torque, the torque adjustment ring 9 acts and only the drive shaft idles, and the spool shaft 2a does not rotate, so no unnecessary load is applied to the motor.

Once the flag has been hoisted in this way, it can be easily removed by removing the box 7 of the electric elevator 4 from the flag pole 1 in the reverse order of the installation process.
At the same time, since the pressing force of the spool shaft 2a is released, the stopper built into the winding section 2 operates to the spool locking side, and the flag is reliably stopped at that position.

On the other hand, when lowering the flag, the flag can be automatically lowered by attaching the electric elevator 4 of the present invention and setting the changeover switch to the lowering side, and then setting the timer 11 to a predetermined time.

[Effect of idea]

As mentioned above, the electric elevator for the proposed flag pole, etc., allows the box to be attached to and removed from the flag pole via a hook, etc., and the flag can be raised and lowered by simply operating a changeover switch via a drive unit linked to a timer. Since the flag is designed to be able to be raised and lowered extremely easily even by people with limited physical strength such as children, the raising and lowering distance can be changed by setting the timer.
Various excellent effects can be expected, such as the possibility of unmanned driving.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the main part showing the state in which the electric elevator such as the proposed flag pole is attached to the flag pole,
The figure is a front view of the proposed container box, and FIG. 3 is an overall view, partially cut away, showing the state in which an electric elevator such as the proposed flag pole is attached to the flag pole. In addition, in the figure, 4... Electric elevator, 7... Utensil box, 8
... Drive section, 9 ... Torque adjustment ring, 10 ... Power supply section, 11 ... Timer, 12 ... Changeover switch.

Claims (1)

[Scope of utility model registration request] A drive unit 8 equipped with a torque adjustment ring 9 into which a spool shaft can be fitted is placed in a box 7 that can be attached to the surface of the flag pole, a power supply unit 10 for the drive unit 8, and a switch for switching the motor 8a in the drive unit 8. 12, and a timer 11 for operating the drive unit 9 for a desired time in conjunction with the switch.