Vibrator control system

Abstract

To enable an operator to independently operate a vibrator, which has a control signal output function for setting the timer and controlling rotation direction of the vibrator motor as well as controlling the vibration on / off of the vibrator on a remote controller to control operation of the vibrator used for concrete compaction.SOLUTION: A vibrator control system according to the present invention includes a remote controller for controlling the operation of a vibrator used for compacting concrete, and a power supply device that receives control signals from the remote controller and supplies power to the vibrator, the remote control has a control signal output part that outputs control signals for controlling the vibration on / off of the vibrator, and control signals for controlling at least one of the rotation directions of the vibrating part of the vibrator or the timer control of the vibration time of the vibrator, the power supply device includes a power control part that supplies the vibrator with power corresponding to the received control signals.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a vibrator control system, and more particularly to a remote controller for controlling the operation of a vibrator used for compacting concrete. In addition to the on / off control of the vibration of the vibrator, the remote controller has a control signal output function for timer setting and controlling the rotation direction of the vibration motor of the vibrator, enabling an operator of the vibrator to easily perform fine operations alone. The present invention relates to a vibrator control system.

Background Art

[0002] Concrete is often used at various construction sites such as civil engineering and construction. When placing concrete, compaction by a vibrator is an essential operation to maintain the quality of the concrete. Compaction is an operation of inserting a vibrator into the concrete poured into a formwork and applying vibration to remove the air bubbles entrained during transportation or driving.

[0003] The vibrator used for compaction is equipped with a motor and a vibration pendulum. When power is supplied to the motor and it is driven, vibration is generated by the vibration pendulum connected to the motor, and this vibration is transmitted to the concrete. Some vibrators are small and have a short overall length and an operation switch at hand, which can be handled by an operator alone. However, for high-frequency output vibrators used for large structures, etc., the depth of insertion of the tip becomes deeper, and operation switches cannot be provided within the reach of the operator's hand of the vibrator. Therefore, for high-frequency output vibrators, another operator who operates the switches in addition to the operator of the vibrator is required. To address the problem of requiring many workers for the compaction operation, a technology for operating the power on / off of the vibrator by a wireless remote controller has also been devised.

[0004] Patent Document 1 discloses a concrete vibrator that controls a vibrator power source by wireless control. The transmitter includes a plurality of push buttons, a code conversion unit that converts an operation mode assigned to a push button into a predetermined code, and a transmission unit that modulates and transmits a carrier with the code sent from the code conversion unit. The receiver includes a decoder that decodes a received signal, and an inverter for controlling the operating frequency of the vibrator power source based on the signal from the decoder. According to the designation of the operation mode assigned to each push button, the start, stop, and operating frequency of the vibrator power source can be arbitrarily controlled, and a concrete vibrator is disclosed.

[0005] According to the device described in Patent Document 1, since an operator who operates the vibrator can carry the transmitter, the start and stop of the vibrator power source can be performed by one person, so that the number of workers required for the tamping work can be reduced. However, depending on the situation, when a spiral-type vibrator with different characteristics depending on the rotation direction of the motor driving the vibrator is used, it is necessary to select or switch between forward rotation and reverse rotation during operation. In addition, in order to stabilize the quality of the concrete, it is necessary to set a timer when the time for transmitting vibration is made constant. Although the transmitter described in Patent Document 1 is provided with a switch for arbitrarily controlling the operating frequency, it is not configured to meet such various needs.

[0006] Therefore, it is desired to provide a vibrator control system that enables an operator who operates the vibrator to perform various tamping operations by functions not available in the prior art, such as setting a timer and switching the rotation direction of the motor driving the vibrator without the need for an assisting operator.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Summary of the Invention

[0008] The present invention has been made in view of the problems in the above-described conventional vibrator control system. An object of the present invention is to provide a remote controller for controlling the operation of a vibrator used for compacting concrete, which has a control signal output function for controlling a timer setting and the rotation direction of a vibration motor of the vibrator in addition to the on / off control of the vibration of the vibrator, so that an operator of the vibrator can easily perform fine operations alone. It is to provide a vibrator control system that enables this. [Means for Solving the Problems]

[0009] A vibrator control system according to the present invention made to achieve the above object is for compacting concrete Insert into compaction For performing and includes a remote controller for controlling the operation of a vibrator used for the above, and a power supply device that receives a control signal from the remote controller by wire or wirelessly and supplies power to the vibrator. The remote controller outputs a control signal for controlling the on / off of the vibration of the vibrator and at least a control signal for controlling the rotation direction of the vibration part of the vibrator. The power supply device is characterized by including a power control part that supplies power corresponding to the received control signal to the vibrator. Including It is preferable that the remote controller or the vibrator includes a notification means for receiving a notification signal notified according to the state of the power supplied from the power supply device to the vibrator and notifying an operator of information on the operation of the vibrator by light, sound, vibration, or a display.

[0010]

[0011] ​The remote controller or the power supply device includes a timer setting unit that accepts a timer setting for the vibration time of the vibrator. When the power supply device supplies power to the vibrator based on a timer setting received from the remote controller or directly received by the timer setting unit of the power supply device, it outputs an end preparation notification signal at a predetermined time before the end of the timer operation. It is preferable that the notification means receives the end preparation notification signal and notifies the operator that the end of the timer operation is approaching.

[0012] The remote controller further includes an input means that accepts a pause instruction to temporarily stop the vibration and a resume instruction to resume the temporarily stopped vibration during the timer operation of the vibrator. When the power supply device receives a pause instruction from the remote controller, it interrupts the power supply and temporarily stops the timer. When it receives a resume instruction from the remote controller, it resumes the power supply and resumes from the time when the timer was temporarily stopped, and supplies power until the total time of power supply before the pause and the timer setting time are reached.

[0013] The remote controller or the power supply device further includes an input means that accepts a variable operation instruction including either a variable frequency vibration instruction to vary the vibration frequency based on a preset program or a variable rotation direction instruction to switch the rotation direction of the vibrator during the timer operation of the vibrator. It is preferable that the power supply device supplies power to the vibrator based on a variable operation instruction received from the remote controller or directly received by the power supply device from the input means.

[0014] The remote controller or the power supply device includes a vibration frequency setting unit that receives an instruction to change the frequency of vibration of the vibrator. When the power supply device changes the vibration frequency based on the vibration frequency setting received from the remote controller or directly received by the vibration frequency setting unit and supplies power to the vibrator, it outputs a tightening range notification signal indicating a tightening range corresponding to the new vibration frequency. It is preferable that the notification means receives the tightening range notification signal and notifies the change in the tightening range by light, sound, or display.

Effect of the Invention

[0015] According to the vibrator control system of the present invention, by providing a remote controller, an operator can not only control the on / off of the vibration of the vibrator alone but also control the timer setting and the rotation direction of the vibration motor of the vibrator. Since another operator is not required to perform such power operations of the vibrator from behind, it is possible to reduce the number of workers for tamping.

[0016] Also, according to the vibrator control system of the present invention, the remote controller or the power supply device includes a timer setting unit. When the power supply device supplies power to the vibrator based on the timer setting, it outputs an end preparation notification signal at a predetermined time before the end of the timer operation. The remote controller or the vibrator that receives the end preparation notification signal notifies the operator that the end of the timer operation is approaching by the notification means. Therefore, the operator can be mentally prepared for the next operation before the end of the timer and can smoothly proceed with the movement to the next location.

[0017] According to the vibrator control system of the present invention, it is possible to input a pause instruction to the remote controller during the timer operation to temporarily stop the vibration of the vibrator and resume the vibration of the vibrator by inputting a resume instruction. However, since the control is such that the total vibration time before and after the pause does not exceed the time set by the timer, it is possible to prevent the deterioration of the quality of concrete due to over-vibration.

[0018] In addition, according to the vibrator control system of the present invention, since a variable operation instruction including either a variable frequency vibration instruction for varying the frequency of vibration based on a program during timer operation or a variable rotation direction instruction for switching the rotation direction of the vibrator can be performed, an operator can easily perform various tightening operations even alone.

[0019] Generally, due to the difference in the rotation direction of the vibration motor of the vibrator, there is a tendency that the ease of deviation of the advancing direction when inserting the vibrator is different. However, according to the vibrator control system of the present invention, since the rotation direction of the vibration motor of the vibrator can be easily switched by a remote controller, for example, even when fine adjustment of the insertion position of the vibrator is required, such as tightening the top end of a slide center, it is possible to appropriately switch the rotation direction and easily insert it into the targeted position.

[0020] According to the vibrator control system of the present invention, the remote controller or the power supply device includes a vibration frequency setting unit that receives an instruction to change the vibration frequency of the vibrator. When the power supply device changes the vibration frequency and supplies power to the vibrator, it outputs a tightening range notification signal indicating the tightening range corresponding to the new vibration frequency. The remote controller or the vibrator that receives the tightening range notification signal notifies the operator of the change in the tightening range by a notification means. Therefore, the operator can recognize the tightening range and perform the work with the vibrator inserted at an appropriate position for the next tightening.

[0021] According to the vibrator control system of the present invention, when tightening is performed in a portion where reinforcing bars are densely arranged, even for a vibrator that becomes difficult to come off after tightening, by repeatedly reversing and rotating forward with the remote controller at hand, it becomes easier to come off. Therefore, an operator can prevent a decrease in work efficiency alone.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0023] Next, a specific example of an embodiment for implementing a vibrator control system according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram schematically showing the overall configuration of a vibrator control system according to an embodiment of the present invention.

[0024] Referring to FIG. 1, a vibrator control system 1 according to an embodiment of the present invention includes a vibrator 30 used for compacting concrete, a power supply device 20 that supplies power to the vibrator 30, and a remote controller 10 for controlling the operation of the vibrator 30 via the power supply device 20. In FIG. 1, it is shown that one vibrator 30 is connected to the power supply device 20, but when the power supply device 20 has a plurality of power output terminals, a plurality of vibrators 30 may be provided. In that case, it is desirable that the number of remote controllers 10 is also plural according to the number of vibrators 30.

[0025] The vibrator control system 1 according to an embodiment of the present invention is a system that enables an operator who operates the vibrator 30 to finely control the vibrator 30 alone by providing an input means for various settings and instructions for control on a remote controller 10 that can be carried and operated by the operator. This makes it possible for a single operator to perform the tightening operation even when using a long vibrator 30 that normally requires a rear operator other than the operator of the vibrator 30 to control the power supply of the vibrator 30.

[0026] In addition, the vibrator control system 1 notifies the operator of notification information such as that the end of the timer operation is approaching and the effective tightening range based on the vibration frequency of the currently applied vibrator 30 by a notification means according to the operating status of the vibrator 30. This enables the operator to efficiently perform the operations from preparing for movement to the next tightening position to setting.

[0027] The remote controller 10 includes an input means 11, a timer setting unit 12, a vibration frequency setting unit 13, a control signal generation unit 14, a control signal output unit 15, and a notification means 16. The input means 11 receives input of control instructions such as control of turning on and off the vibration of the vibrator 30, control of the rotation direction of the rotation shaft of the motor provided in the vibrator 30 for generating vibration, and timer control of the vibration time of the vibrator 30. When there are a plurality of control items, the input means 11 may be configured by a combination of a switch for selecting a control item, such as a rotary switch, and a button switch for instructing its execution. However, in one embodiment, means such as a button switch are provided individually according to the control instruction so that direct instruction input can be made.

[0028] The remote controller 10 of one embodiment includes an input means 11 that receives an instruction to perform at least one of control of the rotation direction of the vibrating unit of the vibrator 30 or timer control of the vibration time of the vibrator 30, in addition to an instruction for controlling the on / off of vibration. In the remote controller 10 of another embodiment, in addition to the above, an instruction to temporarily stop or resume vibration during the timer operation of the vibrator 30, a variable frequency vibration instruction to vary the vibration frequency based on a preset program, or a variable rotation direction instruction to switch the rotation direction of the vibration motor of the vibrator 30 is included, and the input means 11 that receives a variable operation instruction including any one of them is provided.

[0029] The timer setting unit 12 receives a timer setting for the vibration time of the vibrator 30. For the compaction of concrete, if the time for applying vibration by the vibrator 30 is short, sufficient effects cannot be obtained. On the other hand, if the vibration application time is too long, there is a concern about quality degradation due to the separation of concrete. Therefore, setting a timer and performing timer control is an effective method for stable compaction work.

[0030] In one embodiment, the timer setting unit 12 includes a display window for displaying the vibration time, an increase button for increasing the vibration time, and a decrease button for decreasing the vibration time. In another embodiment, it includes a display window for displaying a preset timer control program and a switching button for switching the timer control program. By doing so, not only can the vibration time be simply controlled by the timer, but also intermittent operations such as combining a 60 - second vibration - on period followed by a 30 - second vibration - off period, including the interval until the next vibration, can be performed. During the 30 - second vibration - off period, the vibrator 30 can be moved to the next vibration location, and this can be repeated to continuously and efficiently perform compaction.

[0031] The vibration frequency setting unit 13 receives an instruction to change the vibration frequency of the vibrator 30. There may be cases where it is desirable to change the vibration frequency according to the specifications of the concrete to be placed and the conditions of the placement site. In one embodiment, the vibration frequency setting unit 13 includes a display window for displaying the vibration frequency, an increase button for increasing the vibration frequency, and a decrease button for decreasing the vibration frequency.

[0032] The control signal generation unit 14 generates a control signal to be output to the power supply device 20 based on the instruction input such as the on / off control of vibration and the timer control of the vibration time input by the input means 11, and the set values set such as the timer setting and the frequency setting. The instructions and set values input to the remote controller 10 may be defined by a combination of two instructions such as a temporary stop during the timer operation, and the control signal generation unit 14 is realized by implementing an electronic circuit capable of logical operation processing such as a microcomputer.

[0033] The control signal output unit 15 outputs the control signal generated by the control signal generation unit 14 to the power supply device 20. Therefore, the control signal output unit 15 includes wired or wireless communication means for transmitting a signal to the power supply device 20. In the embodiment, wireless communication means is provided in consideration of the workability of the operator performing the tamping. Both wired and wireless communication means may be provided so that they can be selectively used according to the situation.

[0034] The notification means 16 notifies the operator of information corresponding to the notification signal by light, sound, vibration, or display based on the notification signal output from the power supply device 20 according to the operating status of the vibrator 30, that is, the status of the power supplied from the power supply device 20 to the vibrator 30. The notification signals include an end preparation notification signal, a tightening range notification signal, and the like. The end preparation notification signal is output at a predetermined time before the end of the timer operation when power is supplied to the vibrator 30 based on the timer setting, and notifies the operator that the end of the timer operation is approaching. This allows the operator to prepare for the movement to the next tightening position after receiving the notification without having to worry about the timing of the end of the vibration. The tightening range notification signal is output in response to an instruction to change the vibration frequency and indicates the tightening range corresponding to the new vibration frequency. Since the higher the vibration frequency of the same vibrator 30, the wider the effective tightening range, the appropriate interval between the positions where tightening is performed also changes according to the frequency. Therefore, when the notification means 16 receives the tightening range notification signal, it notifies the operator of the tightening range based on the changed vibration.

[0035] It is important for the operator performing the tightening to grasp the appropriate interval between the positions where tightening is performed. Therefore, in one embodiment, the notification means 16 receives from the power supply device 20 a tightening range notification signal based on the initial setting vibration frequency of the tightening, notifies the tightening range based on the initial vibration frequency, and then, each time the vibration frequency is changed, is provided to notify the changed tightening range.

[0036] When the notification means 16 notifies by light, it notifies by blinking of light or change of light color by a light emitting means such as an LED. When it notifies by sound, it notifies by a sound source such as a speaker. When it notifies by vibration, it notifies by a vibration motor or the like. When it notifies by display, it displays information based on the received notification on a liquid crystal display or the like to notify. The notification means 16 may be any of these, or may notify by combining these. In addition to the above components, the remote controller 10 includes a power supply unit such as a battery (not shown).

[0037] The power supply device 20 includes a relay 21 that controls the power supplied to the vibrator 30 based on a control signal from the remote controller 10, and an inverter 22 that receives external power, changes the frequency, and outputs power. The relay 21 includes a control signal receiving unit 23, an input means 24, a timer setting unit 25, a vibration frequency setting unit 26, a power control unit 27, and a notification signal output unit 28.

[0038] The control signal receiving unit 23 receives the control signal output from the remote controller 10 and includes wired or wireless communication means corresponding to the control signal output unit 15 of the remote controller 10. When the power supply device 20 corresponds to a plurality of vibrators 30 and the remote controller 10 corresponds to each vibrator 30 individually, the control signal receiving unit 23 needs to identify from which remote controller 10 the control signal is. Therefore, in such a case, a unique identification number is set in advance in the remote controller 10, and the control signal from the remote controller 10 includes the information of the unique identification number, so that the power supply device 20 can determine from which remote controller 10 the control signal is. The unique identification number set in the remote controller 10 can be associated with the vibrator 30 connected to the power output terminal by, for example, matching the number of the power output terminal provided in the power supply device 20.

[0039] The input means 24 includes a switch for turning the main power supply on and off, and receives an input to the power supply device 20. Further, the input means 24 receives a variable operation instruction including any one of a timer control instruction for the vibration time of the vibrator 30, a variable frequency vibration instruction for varying the vibration frequency based on a preset program during the timer operation of the vibrator 30, or a variable rotation direction instruction for switching the rotation direction of the vibration motor of the vibrator 30. The program is configured to be set in various combinations in advance as to what kind of vibration is output at what time, stored in the storage unit so as to be selectable, and when the program is specified by an input from the input means, the corresponding power is output. In the embodiment, the program is stored in the storage unit provided in the power control unit 27, and when the program is selected, the power control unit 27 extracts the corresponding program from the storage unit and supplies power to the vibrator 30 according to the setting of the program.

[0040] The timer setting unit 25 receives a timer setting for the vibration time of the vibrator 30. The power supply device 20 does not need to be carried by the operator. Therefore, there is no need to consider portability for the timer setting unit 25 either. For example, the timer time may be set by a toggle switch protruding from the operation panel. Not limited to this, a display window for displaying the vibration time as described in the timer setting unit 12 of the remote controller 10, an increase button for increasing the vibration time and a decrease button for decreasing the vibration time, or a display window for displaying a preset timer control program and a switching button for switching the timer control program may be used to configure it. When the power supply device 20 controls a plurality of vibrators 30, the timer setting unit 25 is provided so that a plurality of settings can be made corresponding to each vibrator 30.

[0041] The timer setting units (12, 25) do not necessarily have to be provided redundantly in both the remote controller 10 and the power supply device 20. When the remote controller 10 is equipped with the timer setting unit 12, the power supply device 20 does not have to be equipped with the timer setting unit 25. Conversely, when the power supply device 20 is equipped with the timer setting unit 25, the remote controller 10 does not have to be equipped with the timer setting unit 12. When the timer setting units (12, 25) are provided redundantly in the remote controller 10 and the power supply device 20, the timer setting unit 12 and the timer setting unit 25 are configured to be interlocked or one of them is selectively prioritized.

[0042] The vibration frequency setting unit 26 receives an instruction to change the vibration frequency of the vibrator 30. The vibration frequency setting unit 26 also has the same function as the vibration frequency setting unit 13 of the remote controller 10, and the configuration may also be the same as that of the vibration frequency setting unit 13. The vibration frequency setting units (13, 26) do not necessarily have to be provided redundantly in both the remote controller 10 and the power supply device 20. When they are provided redundantly in the remote controller 10 and the power supply device 20, the vibration frequency setting unit 13 and the vibration frequency setting unit 26 are configured to be interlocked or one of them is selectively prioritized.

[0043] The power control unit 27 supplies power to the vibrator 30 in response to a control signal transmitted from the remote controller 10 or a control instruction directly input to the input means 24 of the power supply device 20. When the power control unit 27 receives a control signal transmitted from the remote controller 10 via the control signal receiving unit 23, it discriminates which remote controller 10 the instruction is from based on the identification number of the remote controller 10 included in the control signal, and supplies the power corresponding to the instruction of the control signal to the vibrator 30 corresponding to the discriminated remote controller 10.

[0044] For example, when the control signal from the remote controller 10 with identification number 1 is an instruction for timer control, the power control unit 27 controls to stop the power supply to the vibrator 30 connected to output terminal 1 based on the setting of the timer setting unit 12 at the set time. Alternatively, based on the program number set in the timer setting unit 12, the power supply is controlled so that the vibrator 30 connected to output terminal 1 operates intermittently. Also, when the control signal is for controlling the rotation direction of the rotating shaft of the motor for generating vibration, the power control unit 27 supplies power so that the rotation of the motor of the vibrator 30 connected to the corresponding output terminal is in the specified rotation direction.

[0045] In addition to supplying power to the vibrator 30, the power control unit 27 generates a notification signal for notifying the operator according to the operating state of the vibrator 30, that is, the power supply state to the vibrator 30. The notification signal is the end preparation notification signal, the tightening range notification signal, etc. as described above. When the power control unit 27 supplies power at the time set based on the timer operation, it generates an end preparation notification signal at a predetermined time before the end of the timer operation. For example, when supplying power to the vibrator 30 with a 60 - second timer setting, an end preparation notification signal is generated 5 seconds before the end. The 5 seconds, which is the predetermined time in this case, is a time set in advance. The predetermined time may be incorporated in the operation program in advance, or a setting means may be provided so that it can be set to a desired value separately.

[0046] In addition, the power control unit 27 generates a tightening range notification signal indicating the tightening range of the vibrator 30 based on the frequency of vibration in the power supplied to the vibrator 30. The effective tightening range of the vibrator 30 varies depending on the frequency of vibration of the vibrator 30, but in addition to this, it also changes depending on the diameter of the vibrating part of the vibrator 30. Therefore, the power control unit 27 stores a correspondence table including the diameter or type of the vibrating part of the vibrator 30 and the tightening range corresponding to the vibration frequency of each vibrating part in the storage unit provided in the power control unit 27, and extracts the tightening range corresponding to the vibration frequency in the supplied power to generate a tightening range notification signal. For this reason, in one embodiment, the power supply device 20 further includes an input unit capable of selecting the diameter or type of the vibrating part of the vibrator 30 (not shown). When the power supply device 20 supplies power to a plurality of vibrators 30, the power control unit 27 individually generates a notification signal according to the operating status of each vibrator 30.

[0047] The notification signal output unit 28 outputs notification signals such as an end preparation notification signal and a tightening range notification signal. The notification signal is output to the notification means provided in the vibrator 30 or the remote controller 10. Therefore, the notification signal output unit 28 includes wired or wireless communication means. When the power supply device 20 supplies power to a plurality of vibrators 30, the notification signal output unit 28 outputs the notification signal to the corresponding vibrator 30 or remote controller 10 according to the notification signal for each vibrator 30 individually generated by the power control unit 27.

[0048] The inverter 22 receives the input of external power, changes the frequency, and outputs power. The inverter 22 includes a converter that converts the input AC external power into DC and an inverter that converts it into AC with different frequencies by switching, and changes the frequency and outputs it under the control of the power control unit 27. The inverter 22 may be a separate device connected to the repeater 21 by a cable, or may be a device integrated with the repeater 21.

[0049] The vibrator 30 includes a vibrating part 31 and a notification means 32. The vibrating unit 31 includes a motor and a vibrating pendulum attached to the rotating shaft of the motor. When the motor receives power supply from the power supply device 20, the motor rotates, and accordingly, the vibrating pendulum rotates eccentrically to generate vibration. Since the rotation speed of the motor is determined by the frequency of the supplied power, when changing the rotation speed, the power control unit 27 of the power supply device 20 supplies power with the changed frequency. Also, since the rotation direction of the motor is determined by the phase of the supplied power when the motor is, for example, a three-phase motor, when switching the rotation direction, the power control unit 27 controls to supply power with the switched phase.

[0050] The notification means 32 notifies the operator of information corresponding to the notification signal by light, sound, vibration, or display based on the notification signal output from the power supply device 20. The vibrator 30 is inserted into the concrete, and the insertion depth varies depending on the condition of the concrete to be placed, so there are restrictions on the installation of the notification means 32. Therefore, when providing the notification means 32 on the vibrator 30, for example, it is preferable to make the outer tube of the vibrator 30 and the power supply cable of the vibrator 30 transparent and provide an illuminating member with LEDs arranged in a line inside. By using LEDs, information can be transmitted to the operator by the blinking state or color change.

[0051] In addition, for example, a cylindrical sheath-shaped gripping portion may be provided so that the outer tube of the vibrator 30 and the power supply cable of the vibrator 30 can be inserted therethrough, and the notification means 32 may be provided on a part of the gripping portion or a flange portion extending from the gripping portion to the outer periphery. In this case, since the notification means 32 is at the operator's hand and is not affected by the insertion depth into the concrete, the notification means 32 can be a means for notifying by light, sound, vibration, or display.

[0052] Since the notification means (16, 32) transmits information to the operator according to the operating status of the vibrator 30, it is not necessary to duplicate the provision between the remote controller 10 and the vibrator 30, and it is sufficient if either the remote controller 10 or the vibrator 30 is provided with it. However, since information that the operator should grasp is provided, it is preferable that each of the remote controller 10 and the vibrator 30 is provided so as not to be overlooked.

[0053] FIG. 2 is a diagram showing a configuration example of a remote controller according to an embodiment of the present invention. Referring to FIG. 2, the remote controller 10 according to the embodiment of the present invention includes a remote controller main body 100 and a fixing means 17 for attaching the remote controller main body 100 to an arm or the like. The remote controller main body 100 is provided with input means (101, 102, 103, 105, 106, 108) for inputting various control instructions for controlling the power supply device 20, a timer setting unit 104, a vibration frequency setting unit 107, and a notification means 109.

[0054] Among the input means (101, 102, 103, 105, 106, 108), the vibration on / off button 101 is a switch for switching the supply and stop of power to the vibrator 30, and the on / off state is switched every time it is pressed. The rotation direction switching button 102 is a switch for switching the rotation direction of the motor of the vibration unit 31 of the vibrator 30, and is a switch for selecting forward rotation or reverse rotation by pressing either the forward button or the reverse button. Generally, due to the difference in the rotation direction of the vibration motor of the vibrator 30, there is a tendency that the ease of deviation of the advancing direction when inserting the vibrator 30 is different. However, by providing the rotation direction switching button 102 for easily switching the rotation direction at hand, for example, even when fine adjustment of the insertion position of the vibrator is required, such as tightening the top end of the slide center, it is possible to switch the rotation direction of the vibration motor with the rotation direction switching button 102 at hand and insert the vibrator 30 at the target position. Also, when tightening is performed in a portion where the reinforcing bars are densely arranged, the vibrator 30, which becomes difficult to come off after tightening, can be easily removed by repeatedly switching between forward rotation and reverse rotation.

[0055] The variable rotation direction instruction button 103 is an input button for variable rotation direction instruction that varies the rotation direction of the alternating current motor of the vibrating part 31 of the vibrator 30 based on a preset program. Each time it is pressed, it switches between performing variable rotation direction vibration and vibrating in a fixed rotation direction. When there are multiple programs for varying the rotation direction, each time it is pressed, the type of program is changed and the vibration in a fixed rotation direction is cyclically switched.

[0056] The timer control instruction button 105 is a switch for switching between performing timer control and continuous operation. When performing timer control, it is controlled to stop the power supply according to the time set in the timer setting unit 104. The pause / resume button 106 is a button to be pressed when the vibrator 30 temporarily stops vibrating during timer operation and when resuming.

[0057] The variable frequency vibration instruction button 108 is an input button for variable frequency vibration instruction that varies the frequency of vibration based on a preset program. Each time it is pressed, it switches between performing variable frequency vibration and vibrating at a fixed frequency. When there are multiple programs for varying the frequency of vibration, each time it is pressed, the type of program is changed and the vibration at a fixed frequency is cyclically switched.

[0058] A confirmation lamp 110 is provided beside each input means (101, 102, 103, 105, 106, 108), and it indicates the state by lighting or extinguishing, etc., so that it can be determined whether the variable rotation direction instruction, variable frequency vibration instruction, etc. have been pressed to be executed, or which of the forward button and reverse button has been selected.

[0059] The timer setting unit 104 is for setting the duration of vibration when the vibrator 30 operates in timer mode, that is, the duration of continuous power supply to the motor. In the embodiment of FIG. 2, it includes an increase button for increasing the vibration time on the upper side with a display window for displaying the central vibration time in between, and a decrease button for decreasing the vibration time on the lower side. Depending on the embodiment, not limited to simply setting the vibration time, an intermittent operation including programmed vibration and the interval between vibrations may be selectable. In that case, in the central display window, the vibration time (seconds) and the interval (seconds) are combined and displayed as, for example, "60 / 30", and the program can be switched and displayed with the increase button or the decrease button so that a desired program can be selected.

[0060] The vibration frequency setting unit 107 receives an instruction to change the vibration frequency of the vibrator 30. In the embodiment of FIG. 2, it includes an increase button for increasing the vibration frequency on the upper side with a display window for displaying the central vibration frequency in between, and a decrease button for decreasing the vibration frequency on the lower side.

[0061] The notification means 109 notifies the operator of information corresponding to the notification signal based on the notification signal output from the power supply device 20. In the embodiment of FIG. 2, the notification means 109 is a notification display. In the figure, based on the tightening range notification signal received from the power supply device 20 on the notification display, it is shown that the vibration frequency of the vibrator 30 is set to 200 Hz and the tightening range at that time is 600 mm in diameter. The operator can correctly recognize the position where the vibrator 30 is to be inserted next with reference to this notification.

[0062] Also, when the notification signal is a preparation for end notification signal, in one embodiment, the number of seconds until the end time of vibration is counted down and displayed. In other embodiments, in addition to the notification display as the notification means 109, an LED lamp, a vibration motor, or a speaker is provided, and the operator is notified that the end time of vibration is approaching by the blinking of light, vibration, or sound. Depending on the embodiment, a combination of a plurality of notification means such as a combination of the blinking of light and vibration may be used for notification.

[0063] The configuration example of the remote controller 10 in FIG. 2 is only one embodiment of the configuration of the remote controller 10. The number and types of input means (101, 102, 103, 105, 106, 108) and setting parts such as the timer setting part 104 provided on the remote controller 10 can be deformed in various forms, and their arrangements are not particularly restricted. Also, the fixing means 17 is not limited to a belt that fits around the arm, and may be hung from the neck or attached to the belt of work clothes.

[0064] FIG. 3 is a diagram for explaining the processing of the end preparation notification signal in the timer operation of the vibrator control system according to the embodiment of the present invention. FIG. 3(a) shows the state of the power output of the power supply device during the timer operation, and FIG. 3(b) shows the timing of the output of the notification means that has received the end preparation notification signal.

[0065] Referring to FIG. 3(a), the power control unit 27 of the power supply device 20 supplies power to the vibrator 30 during the set timer time and stops the power supply at the end of the timer time. Also, based on a preset predetermined time, the power control unit 27 generates an end preparation notification signal a predetermined time before reaching the timer setting time. The generated end preparation notification signal is transmitted from the notification signal output unit 28 to the notification means (16, 32) of the remote controller 10 or the vibrator 30. The notification means (16, 32) that has received the end preparation notification signal notifies the operator by light, sound, vibration, or display until the end of the timer time. In FIG. 2, the output of the notification means (16, 32) is represented as a continuous output, but when notifying by blinking of light or countdown every second, it can be a discontinuous output. Also in that case, the timing of the output of the notification means (16, 32) is from when the end preparation notification signal is received until the end of the timer time.

[0066] FIG. 4 is a diagram for explaining the pause / resume process in the timer operation of the vibrator control system according to the embodiment of the present invention. FIG. 4(a) shows the state of the power output when the power supply device during the timer operation is not interrupted in the middle, and FIG. 4(b) shows the state of the power output when the vibration is paused during the timer operation.

[0067] Since Fig. 4(a) is the same as Fig. 3(a), the description thereof will be omitted. Referring to Fig. 4(b), during the timer operation, a pause instruction is input, and after the power supply to the vibrator 30 stops, a resume instruction is input after the time T has elapsed, and the power is supplied again. The timer also pauses during the time T when the power supply to the vibrator 30 stops, and the timer resumes as a continuation of the paused time when the resume instruction is input.

[0068] Therefore, even at the end point of the initially set timer time, the power supply to the vibrator 30 does not stop, and the power supply stops when the time T during which the power supply has stopped has further elapsed. Also in this case, the power control unit 27 generates an end preparation notification signal at a predetermined time before the end point of the timer that is delayed by the time T from the initially set timer time. Therefore, even if a pause instruction is given during the timer operation, the operator can correctly grasp that the timer operation will end soon at a predetermined time before the end point of the timer.

[0069] Fig. 5 is a diagram for exemplarily explaining the variable frequency oscillation process in the timer operation of the vibrator control system according to an embodiment of the present invention. Fig. 5(a) shows the state of the power output of the power supply device during the timer operation, and Fig. 5(b) shows the frequency of the output power.

[0070] Figure 5(a) shows the state of power output by intermittent operation based on timer settings. The intermittent operation is defined by a combination of the time for applying vibration for compacting and the interval time for movement, etc., and the power supply to the vibrator 30 is performed according to the compacting time and the interval time. As the intermittent operation, a pattern of supplying power during the compacting time and stopping the power supply during the interval time may be repeated, but Figure 5(a) shows the output situation when the output is also reduced to supply a certain amount of power during the interval time. Also in this case, the power control unit 27 outputs a preparation notice signal for ending a predetermined time before the end of the set compacting time. After that, the power output is gradually decreased within the predetermined time, and after the end of the set compacting time, a certain amount of power with the output suppressed is supplied. In other embodiments, a certain amount of power is supplied during the compacting time, and the output is stepwise reduced when the compacting time ends.

[0071] Referring to Figure 5(b), the power control unit 27 receives an input of a variable frequency vibration instruction for performing variable frequency vibration during the timer operation from the input means (11, 24) of the remote controller 10 or the power supply device 20, and varies the frequency of the output power. In the example of Figure 5(b), the power control unit 27 gradually decreases the frequency of the output power in accordance with the program at the timing of outputting the preparation notice signal for ending, and continues the output at a certain low frequency when the compacting time ends. When the interval time ends, power with a high frequency is supplied again. The variable setting of the frequency may be gradually changed as shown in Figure 5 by a program, or may be changed stepwise.

[0072] It is easier to extract the vibrator 30 from the concrete while applying vibration after compacting, but if it vibrates at a high frequency in the air for a long time, the vibrating part 31 may overheat and burn out. In that regard, by controlling the vibration at a low frequency after the timer ends as shown in Figure 5(b), it is possible to realize a vibrator 30 that improves the handling performance while avoiding problems such as burnout of the vibrating part 31.

[0073] FIG. 6 is a diagram exemplarily explaining variable rotation direction processing in the timer operation of the vibrator control system according to an embodiment of the present invention. FIG. 6(a) shows the state of the power output of the power supply device during the timer operation, and FIGS. 6(b) and 6(c) show the breakdown of the power for forward or reverse rotation of the vibration motor in the output power.

[0074] Since FIG. 6(a) is the same as FIG. 3(a), the description thereof is omitted. Referring to FIGS. 6(b) and (c), the power control unit 27 receives an input of a variable rotation direction instruction for performing variable rotation direction vibration during the timer operation from the input means (11, 24) of the remote controller 10 or the power supply device 20, and supplies power so as to vary the rotation direction of the vibration motor. In the example of FIG. 6(b), the power control unit 27 supplies reverse rotation power to the vibrator 30 until a predetermined time before the timer set time is reached, and supplies forward rotation power to the vibrator 30 so as to change the rotation direction at a predetermined time before the timer set time is reached. Then, when the timer set time is reached, the power supply is stopped. Such control of the rotation direction is effective for controlling a spiral type vibrator 30 or the like in which the vibration propagation characteristics are likely to change depending on the rotation direction.

[0075] In the example of FIG. 6(c), the power control unit 27 alternately supplies reverse rotation power and forward rotation power until a predetermined time before the timer set time is reached, and stops the power supply when the timer set time is reached. When tightening is performed in a portion where the reinforcing bars are densely arranged, the vibrator 30 may be difficult to come off after tightening. In such a case, it is known that the vibrator 30 becomes easier to come off when the forward and reverse rotations are repeatedly switched. When power is supplied so that the forward and reverse rotations are repeated by a program as in the example of FIG. 6(c), even a vibrator 30 that is difficult to come off can be easily removed. In addition to the cases of FIGS. 6(b) and (c), depending on the setting method of the program, various modifications are possible as to at what timing and how to switch the rotation direction.

[0076] As described above, the operator who performs the concrete compaction has a remote controller 10 to be operated by hand, which has notification means for inputting various functions and notifying the operator of information regarding the operation of the vibrator 30. Therefore, the operator can finely control the vibrator 30 alone without attaching an auxiliary worker.

[0077] As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical scope of the present invention.

Explanation of Signs

[0078] 1 Vibrator control system 10 Remote controller 11, 24 Input means 12, 25, 104 Timer setting unit 13, 26, 107 Vibration frequency setting unit 14 Control signal generation unit 15 Control signal output unit 16, 32 Notification means 17 Fixing means 20 Power supply device 21 Repeater 22 Inverter 23 Control signal reception unit 27 Power control unit 28 Notification signal output unit 30 Vibrator 31 Vibration unit 100 Remote controller main body 101 Input means (vibration on / off button) 102 Input means (rotation direction switching button) 103 Input means (variable rotation direction indication button) 105 Input means (timer control indication button) 106 Input means (pause / resume button) 108 Input means (variable frequency vibration indication button) 109 Notification means (notification display) 110 Confirmation lamp

Claims

1. A remote controller for controlling the operation of a vibrator used for insertion into concrete and tightening, and a power supply device for receiving a control signal from the remote controller by wire or wirelessly and supplying power to the vibrator, The remote controller includes a control signal output unit that outputs a control signal for controlling the vibration on / off of the vibrator and a control signal for performing control including at least controlling the rotation direction of the vibrating part of the vibrator, The power supply device includes a power control unit that supplies power corresponding to the received control signal to the vibrator, The remote controller or the vibrator includes a notification means for receiving a notification signal notified according to the power situation supplied from the power supply device to the vibrator and informing an operator of the operation information of the vibrator by light, sound, vibration, or display, The remote controller or the power supply device includes a timer setting unit for receiving a timer setting of the vibration time of the vibrator, When the power supply device supplies power to the vibrator based on the timer setting received from the remote controller or directly received by the timer setting unit of the power supply device, the power supply device outputs an end preparation notification signal at a predetermined time before the end of the timer operation, The notification means is characterized in that it receives the end preparation notification signal and notifies the operator that the end of the timer operation is approaching, and a vibrator control system.

2. The remote controller further includes an input means for receiving a pause instruction for temporarily stopping the vibration and a resume instruction for resuming the temporarily stopped vibration during the timer operation of the vibrator, When the power supply device receives a pause instruction from the remote controller, it interrupts the power supply and temporarily stops the timer. When it receives a resume instruction from the remote controller, it resumes the power supply and resumes from the time when the timer was temporarily stopped, and supplies power until the total time of power supply before the pause and the timer setting time are reached. The vibrator control system according to claim 1, characterized in that

3. The remote controller or the power supply device further includes an input means for receiving a variable operation instruction including either a variable frequency vibration instruction for varying the vibration frequency based on a preset program or a variable rotation direction instruction for switching the rotation direction of the vibrator during the timer operation of the vibrator, The vibrator control system according to claim 1, wherein the power supply device supplies power to the vibrator based on a variable operation instruction received from the remote control or directly received by the power supply device from the input means. **Claim 4**: A remote control for controlling the operation of a vibrator used for insertion into concrete for compacting, and a power supply device that receives a control signal from the remote control by wire or wirelessly and supplies power to the vibrator. The remote control includes a control signal output unit that outputs a control signal for controlling the vibration on / off of the vibrator and a control signal for performing control including at least control of the rotation direction of the vibrating part of the vibrator. The power supply device includes a power control unit that supplies power corresponding to the received control signal to the vibrator. The remote control or the vibrator includes notification means that receives a notification signal notified according to the power situation supplied from the power supply device to the vibrator and notifies the operator of information on the operation of the vibrator by light, sound, vibration, or display. The remote control or the power supply device includes a vibration frequency setting unit that receives an instruction to change the vibration frequency of the vibrator. When the power supply device changes the vibration frequency based on the vibration frequency setting received from the remote control or directly received by the power supply device at the vibration frequency setting unit and supplies power to the vibrator, the power supply device outputs a compaction range notification signal indicating the compaction range corresponding to the new vibration frequency. The vibrator control system is characterized in that the notification means receives the compaction range notification signal and notifies the change in the compaction range by light, sound, or display.

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