JPH032292Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electric control device for electric folding basketball tables, score display devices, etc. used in gymnasiums.

[Prior Art] In recent years, many of the equipment used in gymnasiums, such as folding basketball tables, have become motorized, and with this, controls that can remotely control these equipment using radio waves, light, etc. Although a device has been proposed and put into practical use, conventional products have some drawbacks.

[The problem that the idea attempts to solve]

In a conventional electric control device for a gymnasium, for example, a control device for a folding basketball table, an electric motor is operated in response to a predetermined command signal to move the basketball table to the assembly side or folding side. If the electric motor is turned off while the ball table is in operation, or if the supply of power to the motor is stopped due to a power outage, the basketball table will stop operating during assembly or folding.

If the power is turned on in such a state, or if the power is restored, the electric motor will restart and the basketball table will operate from the middle of assembly until completion, but this basketball table People in the vicinity do not necessarily know what is going on when the operation stops, so when the power is supplied, there is a possibility that the restarted basketball table may fall and cause injury. An accident was suspected.

In view of the problems with conventional control devices, the purpose of the present invention is to maintain the operation contents before the stoppage, for example, when the power supply is cut off and the operation stops during the assembly of a basketball table. To provide an electric control device for gymnasium equipment that can take a state in which it does not operate again unless an operation content based on a new command signal is formed, that is, a neutral state.

[Means to solve the problem]

The structure of the present invention, which has been made to achieve the above object, is to send multiple types of operation commands conveyed by a medium such as radio waves in order to cause gymnasium equipment incorporating an electric motor to perform multiple types of operations such as assembly and folding. A receiving unit that receives a signal, and a memory determination unit that compares the command signal from the receiving unit with a received signal that is set internally in advance in correspondence with each command signal, and outputs the received signal when both signals match. and a setting state in which the electric motor of the gymnasium equipment is operated in a direction corresponding to the command signal based on the received signal from the memory determination unit and stopped by a stop command signal at the completion position of the operation, and a setting state in which the electric motor is not operated. An actuating part that takes either a neutral state, a state of the actuating part and an operating state of the electric motor, and detecting a position where the actuating part is in the set state but the motor is not in the stop position. a reset section that cancels the setting state of the operating section and forcibly switches it to the neutral state when the operating section is in a stopped state; and the electric motor incorporated in the gymnasium equipment that is controlled by the output from the operating section. It is characterized by consisting of.

[Effect]

In the control device of the present invention, the operating section can take either a setting state in which the electric motor performs a predetermined operation, or a neutral state in which the electric motor is not operated and waits for input of a new command signal,
When the operation of the electric motor is stopped in response to a stop command signal while the operating section is in the set state, the reset section causes the operating section to assume a neutral state.

Next, the present invention will be explained using figures.

FIG. 1 is a system diagram showing the device of the present invention, and FIG. 2 is a system diagram showing an example of application of the device of the present invention.

1 is a receiving unit that receives a command signal P in the form of an instantaneous signal transmitted by a transmitter (not shown) and carried by radio waves, sound waves, etc., and 2 shapes the waveform of the signal received by the receiving unit 1. The waveform shaping section 3 compares the output signal from the waveform shaping section with the signal stored in advance in the storage circuit 31 by means of a comparison circuit 32, and only when the two match, determines that the command signal P has been received. The memory discriminating section 3 is configured to output the received signal P'. Various circuit configurations are possible for the memory discriminating section 3, but in short, it is a memory discriminating section that can confirm that the command signal P has been received. If there is, the memory circuit 31 and the comparator circuit 32 may not form separate circuits, such as a phase lock loop, and depending on the type of medium such as radio waves that conveys the command signal P. , the command signal P and the received signal P' may be plural instead of a single one.

Reference numeral 4 denotes an actuator that receives the received signal P' from the memory discriminator 3 and controls and operates an electric motor 5 for operating equipment such as a basketball table. Depending on the number, it is possible to arbitrarily set the operating mode in which the motor is to be placed, for example, if it is simply desired to turn the motor on and off, a two-action type is used.

Reference numeral 6 indicates that when the power of the device of the present invention is turned off or the supply of power current to the device of the present invention is stopped such as during a power outage, the actuating section 4 is placed in a predetermined neutral state, that is, the electric motor When the motor is controlled in two operating states, on and off, it is a reset section that operates to return the operating section 4 to the off position where the motor cannot operate.

As an example of the configuration of the reset section 6, the following type may suffice. For example, detecting that the drive current is being supplied to the motor 5 (indicated by M in FIG. 2) via the actuator 4, or that an actuation voltage is being applied to the actuator 4 itself, When this operation detection signal is detected, the reset section 6
is held in the off state (or standby state) and the operation detection signal is no longer detected, the reset section 6 is turned on, and at the same time, the solenoid is turned on, for example, to set the changeover switch of the actuating section 4 to the neutral position. This is a model whose contents are forced to be switched by, etc.

Therefore, even if the power is turned off or a power outage occurs while gym equipment is in operation, and the electric motor stops due to this,
Regardless of the state of the actuating part 4 held immediately before this situation, the actuating part 4 is returned to a neutral state in which the motor is not started, and even if the power is turned on again after this, the motor will start immediately. This can prevent gymnasium equipment from operating unexpectedly. It is assumed that the operating section 4 and the reset section 6 are equipped with a backup power source in case of a power outage.

The device of the present invention constructed as described above is applied to a folding basketball table in the manner described below, as an example, and is used to control the operation thereof.

That is, as shown in FIG. 2, in order to control the electric motor M of the folding basketball table in which the electric motor M winds up or unwinds the chain C and folds or assembles it, the operating section 4 must: It is sufficient if it has four operating modes: stop, forward rotation, stop, and reverse rotation. When the electric motor M is made to take this operating mode, the operating section 4 has the following modes: stop - forward - stop - depending on the number of received signals P' outputted by the memory discriminator 3.
It uses a quaternary decoder that switches in reverse and sequentially. In addition, when a quaternary decoder is used in the operating section 4, the reset section 6 is equipped with a circuit that has the function of returning the decoder of the operating section 4 to the "stop" state when power is no longer supplied. This is adopted to constitute an example of the device of the present invention.

Here, the actuating section 4 is connected to the electric motor M of the folding basketball table via the delay circuit 7, and a nut 9 is fitted to a screw rod 8 driven by the output shaft of the electric motor M to operate the electric motor M. When the nut 9 reaches the position corresponding to the folding completion state and the assembly completion state of the basketball table, a folding completion state detection limit switch 10 and an assembly completion state detection limit switch 11 are closed, respectively. are arranged in relation to the nut 9, and any of the limit switches 10,
Both limit switches 10 and 11 are connected to the operating section 4 so that the electric motor M is stopped when the limit switch 11 is closed.

In the above configuration, the actuating part 4 and the electric motor M are not connected directly but are connected through the delay circuit 7. Especially when suddenly switching to the folding process during the assembly process, the operation part 4 and the electric motor M are connected via the delay circuit 7. Electric current is supplied to the electric motor M rotating in the direction of assembling the basketball table due to mechanical stress occurring in the link or due to switching to the folding stroke before the rotation in that direction completely stops. This is to prevent rotation in the same direction as the assembly direction.

Thus, the foldable basketball table to which the device of the present invention is connected as described above operates as follows.

Now, when the basketball table is in the folded state, the folding position detection limit switch 10 is conductive, the assembly position detection limit switch 11 is in the cutoff state, and the operating section 4 is in the forward rotation state. The electric motor M is stopped by the limit switch 10.

In order to move the basketball table to the assembly side, when two command signals P are received by the receiving section 1, the memory discriminating section 3 sends two received signals P' to the actuating section 4 to perform the corresponding operation. Activate the actuating section 4. The operating section 4
is supplied with two reception signals P', so it switches to the reverse side via the stop state, and its output is supplied to the delay circuit 7, and as a result, the assembly indicator lamp 7
1 is lit, and 3 to 4 seconds after the delay circuit 7 is activated, AC 100V is applied to the motor M, and the motor M begins to rotate in reverse, and the basketball table begins to move toward the side to be assembled. When the basketball table reaches the assembly completion position, the limit switch 11, which is the position detection means, is closed, so the reversing circuit of the electric motor M is cut off, and the electric motor M stops rotating. The sides are fixed by the braking effect of the worm gear, and the basketball table is positioned in the assembled state. Incidentally, at the start of the above-mentioned operation, the folding position detection limit switch 10, which was previously in the cut-off state, is in the conductive state.

Further, the folding operation of the basketball table in the assembled state is as follows.

First, when two folding command signals P, which are the same as the assembly command signal, are input to the receiving section 1, the memory discriminating section 3 sends two received signals P' to the operating section 4.
As a result, the operating section 4 switches from the previous reverse rotation state to the forward rotation state passing through the stop side, and its output is supplied to the delay circuit 7, and the folding indicator lamp 72 is turned on. By this delay circuit 7, 3
After ~4 seconds, AC 100V is applied to the electric motor M, and the electric motor M starts rotating in the normal direction and starts moving toward the side where the basketball table is folded.

When the basketball table reaches the folding completion position, the limit switch 10, which is the folding position detecting means, is closed, and the normal rotation circuit of the electric motor M is cut off, and the electric motor M stops rotating. The rotating shaft is fixed again and the basketball table is positioned at the folded position. Incidentally, with the start of this operation, the assembly position detection limit switch 11 is switched to the cut-off state.

Furthermore, if you want to stop the operation midway through assembling or folding the basketball table,
One command signal P is sent to the receiving section 1. As a result, one reception signal is sent from the memory discriminator 3 to the actuator 4.
Since P' is supplied, the actuating section 4 is switched from the normal rotation side or the reverse rotation side to the neutral side which is the subsequent state and is cut off, so that the electric motor M, which had been conducting and operating up until then, is cut off. At the same time, the assembly indicator lamp 71 or the folding indicator lamp 72 goes out, making it possible to interrupt the assembly or folding operation. Therefore, if you want to restart the operation,
If one or three command signals P are sent to the receiving section 1,
The actuator 4 is actuated according to the number of received signals P' and the indicator lamp 71 or 72 on that side is lit, so the user is sure that the indicator lamp 71 or 72 is lit, and then presses the basket. The operation of the ball table can be controlled to the desired side.

In addition, in the above example, while the electric motor M is rotating in reverse (assembly process) or in forward rotation (folding process), the power to the device may be turned off or the power to the motor may be cut off for some reason. When the driving of the electric motor M is stopped, the reset portion 6 is activated and the actuating portion 4 controls the operation of the electric motor M in the set state.
is switched to a neutral state, that is, a position where the electric motor is not operated. As a result, even if the power is turned on again, the actuating part 4 has been switched to the neutral position, so the electric motor M will not return to the state immediately before it stopped, so it will not rotate, and therefore the gymnasium equipment This will not lead to any unexpected situation. When the electric motor M stops in the middle of operation as described above, the limit switches 10 and 11 connected to the actuating section 4 are both in a conductive state, so the electric motor M can move in either the forward or reverse direction. Rotatable, meaning the gymnasium equipment can be operated in either direction, folding or assembling, from a stopped position due to a power outage.

In the above embodiment, a case was described in which the device of the present invention was applied to control the folding and assembly of a folding basketball table, but the electric control device of the present invention can be applied to all types of gymnasiums. Of course, it can be applied to electric appliances, and depending on the type of radio wave etc. that carries the command signal P, the memory discriminator 3 can be configured to be able to output two or more received signals, and can be configured to output two or more received signals simultaneously. Other equipment 12 such as a score display board may also be controlled.

[Effect of idea]

The present invention is as described above, in which the command signal received by the receiver and the signal stored in advance are processed by the memory discriminator, and only when they match, the actuator is actuated to control the appliance. In addition to controlling the electric motor, etc., the actuating section is returned to the neutral state when the supply of power supply current is stopped, so controlling the appliance is extremely simple, simply by sending a command signal to the receiving section. There is no risk of malfunction, and depending on the type of radio waves that carry the command signal, it is possible to obtain multiple reception signals with one type of radio wave, so multiple devices can be operated at the same time. It can also be controlled.

Furthermore, even if the power to the device of the present invention is accidentally turned off while the device is in operation, or there is a power outage, the operating part will return to the neutral state at that moment, so the power can be turned on again. In such a case, there is no risk of unexpected damage caused by the equipment starting to operate on its own.

Therefore, the present invention is suitable as an electric control device for equipment used in a gymnasium.

[Brief explanation of drawings]

FIG. 1 is a system diagram showing the device of the present invention, and FIG. 2 is a system diagram showing an example of application of the device of the present invention. 1... Receiving section, 3... Memory discriminating section, 4... Operating section, 6... Resetting section, P... Command signal, P'...
received signal.

Claims (1)

[Scope of utility model registration request] A receiving section that receives a plurality of types of operation command signals carried by a medium such as a radio wave in order to cause a gymnasium equipment incorporating an electric motor to perform a plurality of types of operations such as assembly and folding; A memory discriminating section that compares the command signal with a received signal set internally in advance corresponding to each command signal, and outputs the received signal when both signals match; an operating section that takes either a setting state in which the electric motor of the gymnasium equipment is operated in a direction corresponding to the command signal and stopped in response to a stop command signal at the completion position of the operation, or a neutral state in which the electric motor is not operated; , detects the state of the actuating part and the operating state of the electric motor, and detects the actuating part when the actuating part is in the setting state and the motor is stopped at a position other than the stop position. a reset section for canceling the set state and forcibly switching to the neutral state; and the electric motor incorporated in the gymnasium equipment controlled by the output from the operating section. Device.