JPS6398322A - Electric stimulation apparatus to bed log of shiitake - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention relates to an electrical stimulation device that electrically stimulates a tree by applying a high voltage to it in order to promote the production of shiitake mushrooms.

(Background of the invention) It is an empirical fact that in Shiitake cultivation, when lightning strikes ungerminated Hoda trees placed in a Hoda field, abnormal growth of Shiitake mushrooms is observed in the nearby Hoda trees. , has long been known among cultivators. However, it was not known what factor in lightning caused the abnormal occurrence of shiitake mushrooms.

In response to a request for cooperation from the Forestry Center of Tochigi Prefecture, which is a Shiitake production area, the present applicants have been developing a method of applying lightning impulses of 2 to 100 KV (lx40lS) to hodaki trees since 1982, and a method of applying lightning impulses of 0.5 ~3KV commercial frequency AC voltage 1
He experimented with a method of applying the voltage for a minute and published the results in the May 1980 issue of the magazine ``Kogyo Denka.''

Through this experiment and subsequent experiments, it was found that applying high-voltage electrical stimulation to the stem trees just before they germinate has the effect of promoting the growth of shiitake mushrooms.

Therefore, there has been a demand for the development of an electrical stimulation device that can be used efficiently by shiitake mushroom growers.

(Object of the Invention) An object of the present invention is to provide an electrical stimulation device for shiitake mushroom stems that can be used efficiently by a shiitake mushroom grower.

(Characteristics of the Invention) In order to achieve the above object, the present invention comprises an electrical stimulation generator that generates a high voltage that stimulates the shiitake mushroom tree, a high voltage applicator, and a support stand. The high-voltage applicator is provided with a high-voltage electrode and a handle portion, each having an acute-angled tip that fits into the upper end surface of the upright wood, and connected to the high-voltage side output terminal of the electrical stimulation generator. , the support base has a support member for supporting the hoda tree in an upright state, and an acute-angled tip that sinks into the lower end surface of the hoda tree in an upright state;
A ground electrode is provided which is connected to the ground side output terminal of the electrical stimulation generator, and the electrodes are inserted into both the upper and lower end surfaces of the hoda tree that is supported in an upright state by the support stand. It is characterized by applying a high voltage in the axial direction.

(Embodiment of the Invention) FIG. 1 shows a state in which electrical stimulation is applied to a tree according to an embodiment of the present invention.

The electrical stimulation device includes an electrical stimulation generator 2 that generates a high voltage that has a stimulating effect on the wood 1, and a high voltage applicator 3.
and a support stand 4. A high voltage electrode (described later) provided in the high voltage applicator 3 is connected to the electrical stimulation generator 2 by a lead wire 5.
A ground electrode (described later) provided on the support base 4 is connected to a ground side output terminal 8 by a lead wire 7.

As the electrical stimulation, lightning impulses, DC ripple voltage, etc. are effective. An example of a lightning impulse generator is shown in FIG. Reference numeral 9 denotes a DC power supply circuit that boosts a DC voltage of about 100 V to a DC voltage of 2 to 100 KV using a DC-DC converter and outputs the voltage, and is connected to a capacitor 11 via a charging switch 10. On the other hand, the capacitor 11 is connected to the high voltage side output terminal 6 and the ground side output terminal 8 via a discharge switch 12, an inductance 13, and a resistor 14. A bleeder resistor 15 is connected between the output terminals 6 and 8. The charging switch 10 and the discharging switch 12 are controlled in conjunction with each other by a control unit 16 so that their on/off states are reversed, and the control unit 16 starts operating when a push-button start switch 17 is turned on, and the capacitor 11 is discharged. The charging switch 10 is turned off and the discharging switch 12 is turned on at the same time for a predetermined time sufficient to The start switch 17 is connected to the main body case 19 through a lead wire 18, as shown in FIG.

Since the charging switch 10 is always on, the capacitor 11 is charged to a high voltage by the DC power supply circuit 9. When the start switch 17 is pressed, the control unit 16
Since the discharge switch 12 is turned on for a predetermined period of time, the capacitor 11 is discharged between the output terminals 6 and 8, and this discharge generates a lightning impulse (for example, a 1×40 pS waveform).

The electrical stimulation may be a DC pulsating voltage. An example of a DC pulsating voltage generator is shown in FIG. An AC power supply 20 with a commercial frequency of 100 cm is connected to the primary side of a step-up transformer 21, and the step-up transformer 21 outputs a voltage of about 400 to 100 OV to the secondary side. The secondary side of the step-up transformer 21 includes a half-wave rectifier 22 (an after-wave rectifier may also be used) and a voltage generation switch 2.
3, it is connected to a high voltage side output terminal 6 and a ground side output terminal 8. A bleeder resistor 15 is connected between the output terminals 6 and 8. The voltage generation switch 23 is connected to the control unit 2 which starts operation when the push-button start switch 17 is turned on.
4 for a predetermined time (for example, 0.2 seconds or 0.5 seconds)
turned on.

When the start switch 17 is turned on, the control section ? 4, the voltage generation switch 23 is turned on for a predetermined time.

As a result, the high-voltage AC voltage generated on the secondary side of the step-up transformer 21 is half-wave rectified by the half-wave rectifier 22, and output as a DC ripple voltage from the output terminals 6 and 8 for a predetermined period of time.

Details of the high voltage applicator 3 are shown in FIG. The pistol-shaped high voltage applicator 3 is provided with a high voltage electrode 25, and its tip 25a
is formed at an acute angle and protrudes from the insulating cylindrical portion 26. The periphery of the tip 25a of the high voltage electrode 25 is covered with an electrode protection cover 27, and the electrode protection cover 27 is
6, and is constantly pushed forward by a spring 28. The high voltage electrode 25 is connected to the high voltage side output terminal 6 of the electrical stimulation generator 2 by a lead wire 5. An insulated handle portion 29 is provided on the outside of the high voltage applicator 3, so that it can be operated with one hand. 30 is a band.

Details of the support stand 4 are shown in FIG. An insulating plate 32 is fixed on the base plate 31 of the support base 4, and a ground electrode 33 is provided on the insulating plate 32. A tip 33a of the ground electrode 33 is formed at an acute angle and faces upward. A support member 34 in the shape of a semi-cylindrical frame is erected on the base plate 31 to support the tree l in an approximately erect state.

Returning to FIG. 1 again, the use of the electrical stimulation device of the present invention will be explained. First, stand Hodagi l on the support stand 4. At this time, the sharp tip 33a of the ground electrode 33 is bitten into the lower end surface of the hodaki 1, and the hodaki 1 is attached to the support member 3.
Next, the high-voltage electrode 25 is strongly pressed against the upper end surface of the wood hod 1 so that its sharp tip 25a sinks into the end surface of the wood hod 1. At this time, the electrode protection cover 27 will be retracted into the insulating cylindrical portion 26 against the spring 28. The worker holds the high voltage applicator 3 in one hand,
The start switch 17 of the electrical stimulation generator 2 is held in the other hand.
have.

In this state, when the start switch 17 is turned on, a lightning impulse or a DC pulsating voltage is generated in the electrical stimulation generator 2, and is transmitted through the high-voltage electrode 25 and the ground electrode 33 in the axial direction of the hodaki l. is applied to As a result of the Hodagi 1 being electrically stimulated by the application of a high voltage, the generation of Shiitake mushrooms is promoted.

According to this embodiment, the earth electrode 33 can be brought into strong contact with the lower end surface of the hoda tree 1 at the same time as the hoda tree 1 is erected on the support base 4, and the high voltage applicator 3 and the start switch 17 can be connected to each other. You can operate it with one hand at a time, so you can work more efficiently.

The structure of the high voltage applicator is not limited to that shown in FIG. 4, but may be as shown in FIG. 6, for example. In the high voltage applicator 35 shown in FIG. 6, a high voltage electrode 36 protrudes from the front end.
A flange portion 37 is provided at the center, and a portion behind the flange portion 37 constitutes a handle portion 38.

The tip 36a of the high voltage electrode 36 is formed at an acute angle, similar to the high voltage electrode 25 shown in FIG.

Similarly, the support base 4 is not limited to the structure shown in FIG. 5; for example, the support member 34 may have a cylindrical frame shape.

(Effects of the Invention) As explained above, according to the present invention, an electric stimulation generator that generates a high voltage that stimulates the shiitake mushroom tree, a high voltage applicator, and a support stand are used. The high-voltage applicator is provided with a high-voltage electrode and a handle portion, each having an acute-angled tip that fits into the upper end surface of the upright wood, and connected to the high-voltage side output terminal of the electrical stimulation generator. , the support base has a support member for supporting the hoda tree in an upright state, and an acute-angled tip that sinks into the lower end surface of the hoda tree in an upright state;
A ground electrode is provided which is connected to the ground side output terminal of the electrical stimulation generator, and the electrodes are inserted into both the upper and lower end surfaces of the hoda tree that is supported in an upright state by the support stand. Since a high voltage is applied in the axial direction, it can be used efficiently in a shiitake mushroom cultivation room.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a state in which electrical stimulation is applied to a tree according to an embodiment of the present invention, FIG. 2 is a circuit diagram showing an example of an electrical stimulation generator according to the invention, and FIG. The figure is a circuit diagram showing another example of the electrical stimulation generator according to the present invention, FIG. 4 is a front view and side view showing an example of the high voltage applicator according to the present invention, and FIG. 5 is an example of the support stand according to the present invention. FIG. 6 is a front view and a side view showing another example of the high voltage applicator according to the present invention. 1...Hodagi, 2...Electrical stimulation generator, 3...High voltage applicator, 4...Support stand, 6... ...High voltage side output terminal, 8... Earth side output terminal, 17. Old... Start switch, 25.
...High voltage electrode, 25a...Tip, 29.
Old...handle part, 33.old...earth electrode, 33a...
・・・Tip, 34...Support member, 35・Old...
High voltage applicator, 36... High voltage electrode, 36a...
... Tip, 38 ... Handle. Patent applicant Minoru Nakamura, Tokyo Electric Power Company, Inc. Figure 5 (A) Figure 6 (B) (A) (B)

Claims (1)

[Claims] (1) It consists of an electrical stimulation generator that generates a high voltage that has a stimulating effect on the shiitake mushroom tree, a high voltage applicator, and a support stand, and the mushroom tree is placed in an upright position on the high voltage applicator. It has an acute-angled tip that sinks into the upper end of the tree, and is equipped with a high voltage electrode and a handle part connected to the high voltage side output terminal of the electrical stimulation generator, and with the hodaki tree erected on the support base. A support member for supporting a shiitake mushroom tree, and a ground electrode having an acute-angled tip that sinks into the lower end face of the tree in an upright state, and connected to the ground side output terminal of the electrical stimulation generator. Electrical stimulation device.