JPH0137151B2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a pine surgeon.

Conventionally, a pine surger is known in which an abutting body is attached to the tip of a plunger that is reciprocated by an electromagnet so that the plunger can be struck against the shoulder or the like.

However, such a device has the disadvantage that a sufficient pine surge effect cannot be obtained because the abutting body simply hits the pine surge surface in a monotonous manner.

This invention was made in order to eliminate these drawbacks, and its purpose is to provide a pine surgical machine that can perform effective pine surge by adding a kneading action to the area to be pine surgged, in addition to simply hitting the area to be pine surgged. Our goal is to provide the following.

Embodiments of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a casing constituting the main body of the pine surgeon, and the casing 1 is formed in a size and shape that can be held by hand. A drive unit 2 is attached to one end of the casing 1. The drive unit 2 will be described in detail below. In the figure, 3 is an iron frame with openings on both the upper and lower sides, and a rotor 5 that can freely rotate around a pivot portion 4 is pivotally attached to this frame 3. ing. The rotor 5 has a substantially U-shaped side surface and has a leg portion 5a located on one free end side of the rotor 5, and a leg portion 5a located on the other free end side of the rotor 5 made of iron or the like. It is configured to include attracted parts 5c, 5c made of a magnetic material. These attracted parts 5c, 5
c extend in opposite directions along both rotational directions of the rotator 5, respectively. Reference numeral 6 denotes a cushioning material made of rubber or the like attached to the rotator 5. Further, the leg portion 5a is provided with a pair of abutting bodies 7, 7 that abut against a portion A to be pine surged such as a shoulder. These abutting bodies 7, 7 are made of synthetic resin or a material having appropriate elasticity, and are arranged in the direction of rotation of the rotator 5.

Further, in the pivot portion 4, a pivot 9 is fixed to the frame 3 by a screw 8, and the pivot 9 is rotatably inserted into an oil-impregnated bearing 10 press-fitted into the rotor 5.

Further, a pair of electromagnets 11 and 12 for driving the rotor 5 are fixed to the frame 3.
Each electromagnet 11, 12 is connected to the attracted part 5 of the rotator 5.
The suction target parts 5c and 5 are arranged on both sides of the rotating direction of the suction target parts 5c and 5, respectively, with the suction target parts 5c and 5c interposed therebetween. Each electromagnet 11, 12 is composed of a drive coil 13, 14, a fixed core 15, 16, a yoke 17, 18, etc., and the insertion hole 13 of the drive coil 13, 14 is
A suction target portion 5c is inserted into a and 14a. The electromagnets 11 and 12 are alternately energized by a drive circuit 19 built into the casing 1, and the rotor 5 is rotated back and forth. Reference numerals 20 and 21 are cushioning materials, and these cushioning materials 20 and 21 also serve as stoppers for regulating the rotation range of the rotator 5.

As shown in FIG. 2, the first drive circuit 19 connects the drive coil 13 to a commercial AC power source 22 via a first unidirectional thyristor 23 and connects the drive coil 13 to a commercial AC power source 22 via a second unidirectional thyristor 24. The coil 14 is connected. Further, a power supply synchronization circuit 25 is connected to the power supply 22. The power supply synchronization circuit 25 supplies a rectangular wave synchronized with the power supply frequency to the timer circuit 26. The timer circuit 26 has a built-in charging/discharging circuit, and a timer time corresponding to one or more cycles of the power supply frequency, for example, three cycles is set. and the timer circuit 26
The time-up signal from the power supply synchronization circuit 25
The AND gate 27 performs a logical product with the rectangular wave from the input signal and inputs the result to a flip-flop 28. The flip-flop 28 has an output terminal in response to a signal inputted through the AND gate 27.
High level signals are alternately output to O ₁ and O ₂ and supplied to the first and second switching circuits 29 and 30, respectively. The first switching circuit 29 is an output terminal of the flip-flop 28.
The _second switching circuit 30 outputs a pulse in response to the rise of the signal from the output terminal _O2 of the flip-flop 28.

In the embodiment of the present invention configured in this way,
When a power waveform as shown in FIG. 3a is supplied from the commercial AC power supply 22, a rectangular wave synchronized with the power frequency is supplied from the power synchronization circuit 25 to the timer circuit 26, and the timer circuit 26 is built-in. Mitsuru・
As shown in Figure 3b, the discharge circuit is
Operate repeatedly at a rate of once per cycle. Then, the output of the timer circuit 26 is synchronized with the power frequency by an AND gate 27 using a rectangular wave from the power synchronization circuit 25, and is input to a flip-flop 28. Therefore, the input waveform to the flip-flop 28 becomes the pulse shown by c in FIG. This pulse causes flip-flop 28 to output terminals O ₁ ,
The output from O ₂ is alternately inverted, and an output waveform as shown in d in Figure 3 is obtained from output terminal O ₁ , and an output waveform as shown in e in Figure 3 is obtained from output terminal O ₂ . can get. Thus, the first switching circuit 29 outputs a pulse as shown in FIG. 3 f and is supplied to the gate of the first thyristor 23, and the second switching circuit 30 outputs a pulse as shown in FIG. Such a pulse is output and supplied to the gate of the second thyristor 24. As a result, the conduction of the first thyristor 23 causes a half cycle of current to flow through the drive coil 13 every six cycles of the power supply frequency, as shown in h in FIG. As shown at i in FIG. 3, half-cycle current is passed through the coil 14 every six cycles of the power supply frequency, alternating with the current supplied to the drive coil 13. That is, three cycles after the drive coil 13 is energized for a half cycle, the drive coil 14 is energized for a half cycle, and 1
The pair of electromagnets 11 and 12 are alternately excited in half cycles of the power supply frequency at time intervals of three cycles of the power supply frequency. As the electromagnets 11 and 12 are alternately excited in this way, the attracted parts 5c and 5c of the rotor 5 are alternately attracted, and the rotor 5 intermittently rotates back and forth about the pivot part 4. . Therefore, the abutting bodies 7, 7 reciprocate and the part A to be pine-surged, such as the shoulder, is sandwiched between these abutting bodies 7, 7 and pine-surged. At this time, the abutting bodies 7, 7 pinch the pine surge area A and alternately perform the tapping action from different diagonal directions, so that a kneading action is added to the hitting action, making it possible to perform effective pine surge. In addition, since the pair of electromagnets 11 and 12 are alternately excited at relatively slow synchronization intervals of three cycles of the power supply frequency to rotate the rotor 5, the rotor 5 rotates. Electromagnet 11,1
It is possible to reciprocate by fully following the excitation switching operation of step 2, and it is possible to perform good pine surge with a large amplitude. Further, by increasing the distance from the pivot portion 4 to the attracted portions 5c, 5c, it becomes possible to considerably increase the small suction force and transmit it to the contact body 7, and even a small electromagnet can obtain a large pine surge force.

In the above embodiment, one electromagnet is arranged on each side of the rotor with the attracted part interposed therebetween, but the invention is not limited to this, and a plurality of electromagnets may be arranged on both sides. may be arranged.

Further, in the embodiment described above, two abutting bodies are used, but the present invention is not limited to this, and the number of abutting bodies may be one.

Further, in the above embodiment, the structure of the suction target part is such that it extends in opposite directions along both rotational directions of the rotator, but the structure is not limited to this. For example, the extended part It is also possible to have no such structure at all, and various shapes are possible.

Further, in the embodiment described above, a unidirectional thyristor was used to control the energization of the drive coil, but the invention is not limited to this. For example, a bidirectional thyristor may be used. .

Further, in the embodiment described above, the power supply to the drive coil is set to be a half cycle of the power supply frequency, but the invention is not necessarily limited to this, and a phase control circuit may be provided to set the power supply to be less than half a cycle.

Furthermore, in the embodiment described above, a pair of electromagnets are alternately excited at time intervals of three cycles of the power supply frequency, but the invention is not limited to this, and FIGS. The current flowing to the drive coil 13 and the drive coil 14 shown in FIG.
The time intervals A and B between the energizing current and the energizing current do not necessarily have to be the same, and can be set as appropriate, as long as they are alternately excited at time intervals of one period or more.

As described in detail above, according to the present invention, a contacting body is provided on one free end side of the rotator supported so as to be rotatable about a pivot, and the contacting body that comes into contact with the pine surge portion is provided, and the other free end An attracted part made of a magnetic material is provided on the side, and electromagnets arranged facing each other on both sides with the attracted part in between are alternately excited by a drive circuit at time intervals of one or more cycles of the commercial power frequency. Since the above-mentioned part to be suctioned is made to perform a suction operation, it is possible to add a kneading action to the tapping action on the part to be pine surgged, and also to perform pine surge with a large action, thereby providing a pine surgical machine that can perform effective pine surge. be.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, and FIG.
Figure 2 is a block diagram showing the configuration of the drive circuit, Figure 3 is a block diagram showing the configuration of the drive circuit.
The figure is an input or output waveform diagram of each part in FIG. 2. 4... Pivot part, 5... Rotator, 5c... Attracted part, 7... Contact body, 11, 12... Electromagnet, 22
... Commercial AC power supply, 23, 24 ... Thyristor,
26...Timer circuit, 28...Flip-flop, 29, 30...Switching circuit.

Claims (1)

[Claims] 1. A rotator rotatably supported around a pivot, a contact body provided at one free end of the rotor and abutting against the pine surge portion, and the other end of the rotor. an attracted part made of a magnetic material provided on the free end side; and electromagnets disposed opposite to each other on both sides with the attracted part interposed therebetween, and which operate to attract the attracted part by being excited; A pine surger characterized by comprising a drive circuit that alternately excites the electromagnets arranged on both sides at time intervals of one or more cycles of the commercial power frequency.