JPH06197628A - Blade device for scraping out culture medium - Google Patents

Abstract

PURPOSE:To enable the prevention of slip of a helical spring and further improvement in the scraping out efficiency of a culture medium. CONSTITUTION:This blade device is equipped with pins 26 capable of fitting a spring piece 25 of a helical spring and preventing a hooking part from slipping off from an arm member on an arm part 22 of the arm member 15 to be nearly the vicinity of a cultivation bottle in admitting a cutting blade 12 of the arm member 15 into the vicinity of the bottom of the cultivation bottle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a culture medium scraping blade device for scraping a culture medium from a cultivation bottle after harvesting mushrooms.

[0002]

2. Description of the Prior Art In artificial cultivation of mushrooms using a cultivation bottle, a cultivation base is scraped from the cultivation bottle after cultivation, and the cultivation bottle is circulated for efficient use. There are various types of such a culture-base scraping blade device, but the one described in Japanese Patent Publication No. 57-9323 is popular. As shown in FIG. 4, this conventional culture-base scraping blade device includes a drive shaft body 10 that rotates about an axis and a Z axis.
A cutting blade 1 that has a shape and is used for cutting the base material on the upper horizontal part 11
2 is provided, and the lower end horizontal portion 13 is attached to the drive shaft body 10 and an arm member 15 rotatably inserted into a shaft hole 14 formed in the drive shaft body 10 at a right angle to the axis. One end is locked by the locking pin 18 of the drive shaft body 10, a winding part in the middle is wound around a circumferential groove provided on the tip side of the lower end horizontal portion 13 of the arm member 15, and the other end is hook-shaped. A direction in which the hooking portion 19 is hooked on the middle portion of the arm member 15 and the middle portion of the arm member 15 contacts the stopper 21 about the axis of the lower end horizontal portion 13 (the rotation direction of the drive shaft body 10). It has a spiral spring 20 that urges it to rotate in the opposite direction). Further, as shown in FIG. 5, the upper end horizontal portion 11 is approximately 90 ° to 1 in the rotational direction (arrow) of the drive shaft body 10 with respect to the lower end horizontal portion 13.
It is set to be displaced by an angle of 35 °. Such a shape also has a substantially Z shape as described above.

According to the above-mentioned medium scraping blade device, as is clear from FIG. 5, when the scraping blade 12 is at the solid line position in the figure and at the broken line position (the middle part of the arm member contacts the stopper 21). In the latter case, the tip of the scraping blade 12 is outward with respect to the center of the drive shaft body 10. This is suitable for scraping culture medium from a wide-bottle-shaped cultivation bottle having a narrow bottle mouth and a wide interior. That is, when scraping the culture medium, as shown in FIG. 6, the cultivation bin 23 is supported upside down on the cylindrical bin receiver 24, and the scraping blade device is raised to rotate the scraping blade 12. Cultivation bottle 23
Insert it into the inside and cut the medium so that it drops from the bottle mouth downward. At this time, the tip of the scraping blade 12 is held in contact with the inner wall of the bottle receiver 24 at the standby position (solid line state in FIG. 5). Scraping blade 1 from this state
When 2 is rotated and raised, the scraping blade 12 is gradually increased in diameter by the biasing force of the spiral spring 20 from the shoulder inside the bottle to the large-diameter inner wall. Also, the tip of the scraping blade 12 follows the inner wall of the bottle to rotate outward (state of broken line in FIG. 5), and the tip always contacts the inner wall of the bottle or rotates in close proximity to the inner wall of the bottle, so that no culture medium is left. It can be cut. The stopper 21 is the arm member 1
5 is for preventing the inner wall of the bottle from rotating further outward, and the tip of the cutting blade 12 is in contact with or close to the inner wall of the bottle in the large diameter portion of the bottle. Regulate so that

[0004]

In the above-mentioned conventional scraping blade device, since the scraping blade 12 rises along the inner wall of the bottle,
Although it has an advantage of being able to scrape out the medium very efficiently, it has been found that there are the following problems. That is, since the scraping blade 12 is rotated at a high speed, it receives a considerable cutting resistance from the culture medium, and the arm member 15 or the spring piece of the spiral spring vibrates. The other end hooking portion 19 of the spring 20 may come off from the middle portion of the arm member 15. Spiral spring 1 like this
When 5 is detached and the scraping blade 12 is rotated as it is, the scraping blade 12 breaks through the wall surface of the cultivation bottle 23 and projects outside, which not only damages the device but is also extremely dangerous.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is not only to prevent the spiral spring from coming off, but also to further improve the efficiency of scraping the substrate. An object is to provide a culture-based scraping blade device capable of performing.

[0006]

The present invention has the following constitution in order to achieve the above object. That is, a drive shaft that rotates about an axis and a substantially Z shape are provided, a cutting blade for medium cutting is provided at the upper end horizontal portion, and a lower end horizontal portion is bored in the drive shaft substantially at right angles to the axis. The arm member rotatably inserted in the shaft hole and the tip of the upper horizontal part of the arm member touch the inner wall of the cultivation bin after mushroom harvesting, which is upside down and moves up and down relatively to the drive shaft. In order to enter the cutting blade into the cultivation bottle from the bottle mouth while contacting or approaching,
It is attached to the drive shaft body, one end is locked to the drive shaft body, and the other end is hooked in the middle part of the arm member so that the arm member is opposite to the rotation direction of the drive shaft body around the axis of the lower end horizontal portion. In a culture-based scraping blade device equipped with a spiral spring that urges to rotate in the direction, when the cutting blade of the arm member reaches near the bottom of the cultivation bottle, the cultivation bottle is almost in the vicinity of the shoulder portion. A pin protruding from the arm member of the arm member is provided so as to prevent the hook portion from coming off the arm member by locking the spring piece of the spiral spring.

[0007]

When the scraping blade 12 rotates at a high speed to cut the medium, and the arm member 15 and the spring piece 25 of the spiral spring 20 are vibrated due to cutting resistance from the medium,
The spring piece 25 is supported from behind by the pin 26a, and the hook portion 19 does not come off from the arm portion 22. Further, as shown in FIG. 3, when the cutting of the culture medium progresses and the scraping blade 12 approaches the bottom of the bottle, the cut culture medium bridge bridges in the vicinity of the shoulder of the bottle and does not easily fall downward. Since the pins 26 and 27 are located near the shoulders and rotate together with the rotation of the arm member 15 to rotate the culture medium piece or crush it into smaller pieces, they are quickly dropped and discharged below the bottle mouth. There is a synergistic effect.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows a culture-based scraping blade device of the present embodiment. Since the basic structure is the same as the conventional one, the same members are designated by the same reference numerals and the description thereof will be omitted. In the present embodiment, first, when the cutting blade 12 of the arm member 15 enters the vicinity of the bottom of the cultivation bottle 23 at the position of the hooking portion 19 at the middle of the arm member 15 at the other end of the spiral spring 20, the cultivation bottle It is set to be near the center of the vertical direction of 23. Further, two pins 26 and 27 are provided on the arm portion 22 of the arm member 15 slightly below the position where the hook portion 19 of the spiral spring 20 is located so that both ends of the arm member 22 project from the arm portion 22. It is fitted in the through hole. As clearly shown in FIG. 2, of the two pins 26, 27, the pin 26 a is in contact with the spring piece 25 in the vicinity of the spring piece 25 on the side opposite to the urging direction of the spring piece 25 of the spiral spring 20. Is set to stretch.

With the above construction, the scraping blade 12 rotates at a high speed to cut the culture medium, and the arm member 15 and the spiral spring 2 are cut by the cutting resistance from the culture medium.
Even if the spring piece 25 of 0 vibrates or the like, the spring piece 25 is supported from behind by the pin 26a, and the hook portion 19 does not come off from the arm portion 22. Further, as shown in FIG. 3, when the cutting of the culture medium progresses and the scraping blade 12 enters close to the bottom of the bottle, the cut culture medium bridge bridges near the shoulder portion of the bottle where the diameter becomes gradually smaller and moves downward. Although it is hard to drop, the pins 26 and 27 are located near the shoulders and rotate with the rotation of the arm member 15 to rotate the culture base piece or further crush it into small pieces, so immediately below the bottle mouth. There is a synergistic effect of being dropped and discharged. In the above embodiment, two pins are provided, but one pin or a plurality of three or more pins may be used.

Although the present invention has been variously described with reference to the preferred embodiments, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. Of course.

[0011]

According to the medium scraping blade device of the present invention, since the pin is positioned behind the spring piece of the spiral spring, the arm member or the spring piece is cut by the cutting resistance from the medium. Even if the machine vibrates, you can avoid the risk that the spring piece will come off the arm member, and because the pin is located near the shoulder of the bottle, you can eliminate the bridge of the culture base piece and quickly drop and discharge the culture base. There is an effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a culture base scraping blade device.

FIG. 2 is an explanatory diagram showing a positional relationship between a pin and a spring piece.

FIG. 3 is an explanatory view showing the action of the pin.

FIG. 4 is a perspective view showing a conventional example.

FIG. 5 is an explanatory diagram showing a direction of a cutting blade.

FIG. 6 is an explanatory diagram of a bin receiver.

[Explanation of symbols]

 10 Drive Shaft 11 Top Horizontal Part 12 Cutting Blade 13 Bottom Horizontal Part 15 Arm Member 19 Hooking Part 20 Vine Spring 21 Stopper 22 Arm Part 23 Cultivation Bottle 24 Bin Holder 26, 26 Pin

Claims (1)

[Claims] 1. A drive shaft body that rotates about an axis, a substantially Z shape, a cutting blade for cutting a base material is provided at the upper end horizontal portion, and the lower end horizontal portion is substantially perpendicular to the axis line on the drive shaft body. The arm member rotatably inserted through the bored shaft hole and the upper end horizontal part of the arm member on the inner wall of the cultivation bin after mushroom harvesting, which is upside down and moves up and down relatively to the drive shaft. In order to enter the cutting blade into the cultivation bottle from the bottle mouth while bringing the tips into contact with or close to each other, the cutting blade is attached to the drive shaft body, one end is locked to the drive shaft body, and the other end is in the middle of the arm member. A culture base scraping blade device comprising a spiral spring that is hooked to urge the arm member to rotate in the direction opposite to the rotation direction of the drive shaft about the axis of the lower end horizontal portion, wherein the arm member is cut. The blade has approached the bottom of the cultivation bottle In this case, a pin that protrudes from the arm member of the arm member, which is almost in the vicinity of the shoulder of the cultivation bottle, is provided so that the spring piece of the spiral spring is locked to prevent the hook portion from coming off the arm member. A scraping blade device for cultivating culture.