JPS5822476Y2 - Opener with timed membrane - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an opener with a timed membrane.

When growing vegetables, etc. in a greenhouse, it is necessary to disinfect the greenhouse in advance to disinfect the inside of the greenhouse and kill pests. 126097 (1977).

This opener will be explained based on FIG.

Inside the can 1, a high pressure gas containing methyl bromide etc. is sealed with a cap 2.

There is a protrusion in the center of this cap.

An inner cylinder 19 is screwed into the protrusion 3, and an outer cylinder 20 is connected to the inner cylinder.
are screwed together to cover the upper end of the inner cylinder.

A cap-shaped fusible plate 21 is interposed between the outer cylinder 20 and the inner cylinder 19, and this fusible plate seals the upper end opening of the inner cylinder.

The head 22a side of the nail 22 protrudes above the outer cylinder 20, and the tip end passes through the outer cylinder and reaches the membrane 3a of the protrusion 3 through the through hole 19a inside the inner cylinder 19.

This nail 22 is fixed to the outer cylinder 20.

To explain how to use this opener, when the can 1 is facing downward and the nail head 22a is hit, the tip of the nail 22 breaks the membrane 3a of the protrusion 3, and the high pressure gas of methyl bromide inside the can is released. It reaches inside the inner cylinder 19.

Therefore, Can 1 is left under the vinyl that has been previously laid inside the house.

In this way, after a certain period of time has elapsed, the fusible plate 21 will be melted by the gas, and the gas will be injected from the injection holes 20a, thereby disinfecting and killing insects in the greenhouse.

However, according to the conventional opener, the driving nail head 22
When hitting a stone or the like, the nail 22 is fixed to the outer cylinder 20, so considerable force is required, and the nail 22 is fixed to the outer cylinder 20.
penetrates the outer cylinder 20 and the nail head 22a protrudes above the outer cylinder, so when the membrane 3a of the protrusion 3 is broken, there is a risk that gas will leak out from the outer cylinder 20 along the nail 22. There was a safety problem.

Furthermore, when in use, as shown in the chain line in Figure 6,
Since the driving nail 22 is located inside a, there is a drawback that the injection takes time.

The present invention eliminates the above-mentioned drawbacks, and embodiments thereof will be described below with reference to the drawings.

1, a discharge part 3 is provided protruding from the center of a cap 2 that seals the opening of a container 1.

The discharge port of the discharge section 3 is sealed with a membrane 3a, and a screw 3b is cut into the outer circumference of the membrane 3a in this example.

A female screw portion 4a of a stopper 4 is screwed into the discharge portion 3 so as to cover the discharge portion 3.

A gap portion 4b is formed in the upper part of the plug body 4, and a guide hole 4C passes through the axial center portion from the upper end surface toward the membrane 3a.

The tip of the nail 5 is inserted into the guide hole 4, the upper end of the nail 5 projects upwardly from the plug 4, and the upper end surface is in contact with the inner surface 6a of the lid 6.

The nail 5 can break the membrane 3a of the discharge part 3 and fall into the container 1.

As shown in FIGS. 1 and 2, the lid body 6 is formed into a cap shape from styrene-based synthetic resin or the like, and its lower end opening 6b engages with the collar 4b of the stopper body.

One or more (one in the drawing) nozzle holes 7 are provided from the inner surface 6a of the lid 6 toward the upper end surface, and the upper end of the nozzle hole 7 is formed by forming a thin upper surface of the lid 6. It is sealed with a membrane 8.

Next, the effect will be explained.

First, when holding the container 1 and pointing it downward, the end surface of the lid 6 is strongly hit vertically against, for example, a hard plate.
As shown by the chain line in the figure, the inner surface 6a of the lid body is relatively close to the bottom surface of the cap 2 and hits the head of the nail 5, so that the nail breaks the membrane 3a of the discharge part 3 and enters the container 1. Fall.

For this reason, the gas in the container 1 is transferred from the discharge part 3 to the guide hole 4C.
The gas then fills the lid 6 and comes into contact with the timer membrane 8.

After a certain period of time has elapsed, the timer film 8 melts and the gas is injected to the outside from the injection hole 7.

Note that when the lid 6 is struck and the nail 5 falls into the container 1, the lid descends as shown by the chain line in FIG. 1, but high pressure gas is injected into the lid from the discharge part 3. The pressure of the gas causes the lid to rise and tightly engage the flange 4b of the stopper, so that no gas leaks from the lid to the outside.

Another embodiment of the opener will be described.

In FIG. 3, a guide hole 14C extending to a female threaded portion 14a provided at the lower part passes through the axial center of the plug body 14.

A stepped portion 14d is provided at the inner peripheral portion of the lower end of the guide hole 14C,
This lower end opening is reduced in diameter.

A nail 15 is inserted into the guide hole 14C, and the tip 15a is formed into a conical shape, and a stepped portion 14d prevents the nail from falling.

The head of the nail 15 comes into contact with the inner surface 16a of the lid 16,
Its position is maintained.

Further, as shown in FIGS. 3 and 4, ring-shaped inner grooves 9 and outer grooves 10 are bored in the plug body 14 from the upper surface to the lower surface, centering on the guide hole 14C.

At the top and bottom of the inner peripheral surface of the inner groove 9 on the guide hole 14C side, locking grooves 9a and 9b are formed in the circumferential direction.

Further, the outer groove 10 is formed deeper than the inner groove 9, and locking grooves 10a and 10b are formed in the intermediate and bottom portions of the inner peripheral surface on the outer surface side of the plug body 14 in the circumferential direction.

Inside the lid 16, as shown in FIGS. 3 and 4, a cylindrical body 11 is provided integrally with the lid so as to surround the nail 15, and a retaining portion 11a is formed inside the lower end opening. It is.

Further, a collar portion 1
6b is formed.

The outer peripheral portion 16C of the cylinder 11 and the lid 16 can move up and down the inner groove 9 and the outer groove 10, and the engaging portion 11a of the cylinder engages with the locking groove 9a of the inner groove 9 before use. However, the collar portion 16b on the outer periphery is connected to the locking groove 10 of the outer groove 10.
a and is held in position.

Further, the retaining part 11a is connected to the locking groove 9b below the inner groove 9, and the collar part 16b on the outer circumference is connected to the locking groove 10 below the outer groove.
a, respectively.

Further, within the lid 16, the inside of the cylinder 11 forms a first chamber 12, and the second chamber 13 is formed between the outer peripheral surface of the cylinder and the inner peripheral surface of the outer peripheral portion 16C of the lid.

In addition, injection holes 17 are formed on the top surface of the lid 16 as shown in FIGS. 3 and 5, and the bottoms of these holes are sealed with time-limiting films 18. It is.

Next, the effect will be explained.

If the upper surface of the lid body 16 is hit, the tip 15 of the nail 15 will be struck.
The container a spreads out the stepped portion 14d, descends, breaks the membrane of the discharge portion of the cap, and falls into the container.

At this time, the lid 16 is lowered as shown by the chain line in FIG. 10 locking grooves 10
a and is held in position.

In this state, the gas in the container passes through the guide hole 14C and reaches the inside (first chamber) 12 of the cylinder 11.

Even if the gas leaks outside the cylinder 11, there is no risk of it leaking outside because the second chamber 13 exists.

Therefore, it is highly safe. After a certain period of time has elapsed, the gas melts the timer membrane 18 and is injected to the outside.

Note that the means for connecting the discharge portion of the cap and the plug body is not necessarily limited to a screw.

Furthermore, although the timer membrane and the lid body may be constructed as separate parts, if the timer membrane is formed integrally with the lid body, the number of parts can be reduced compared to conventional openers, and assembly is also easier. .

As explained above, according to the present invention, since the nail is housed within the lid, there is little risk of gas inside the container leaking.

Since the nail falls into the container during use, the spraying time can be shortened.

Furthermore, when the lid body is nailed to a hard board or the like, it is sufficient to use a nail to break the membrane of the discharge portion, and unnecessary force is not required.

Further cost reduction can be achieved.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing one embodiment of the present invention, and Fig. 2 is a cross-sectional view showing an embodiment of the present invention.
3 is a sectional view of the main part showing another embodiment, FIG. 4 is a sectional view taken along the line IV--IV in FIG. 3, and FIG. 5 is a plan view of FIG. FIG. 6 is a sectional view of a conventional example. 1...container, 2...cap, 3...
...Discharge section, 3a... Membrane, 4...
Plug body, 4b...Brim portion, 4C...Guide hole, 5...Nail, 6...Lid body, 6b
...Lower end opening of the lid body, 7 ...Blowout hole, 8 ...Timer membrane, 9 ...Inner groove, 9a
, 9b...Latching groove, 10...Outside groove,
10a, 10b...Lock groove, 11...
... Cylindrical body, 11a... Engagement part, 12...
...1st room, 13...2nd room, 14...
...Plug body, 14C...Guide hole, 14d...
・・・Stepped part, 15... Nail, 16...
・Lid body, 16b...Brim part, 16C...
...Outer circumference, 17...Injection hole, 18...
・Timed membrane.

Claims (3)

[Scope of utility model registration request] (1) A cap that seals the container, a discharge part that protrudes from this cap and whose upper end is sealed with a membrane, and a guide hole that is attached to this discharge part and penetrates toward the membrane. a plug that is removably inserted into the guide hole and whose head side protrudes from the plug, and the nail is stored inside and can be raised and lowered into the plug through the opening at its lower end. An opener with a timing membrane, comprising: a lid that engages with the lid; and a timing membrane that is provided on the lid and temporarily seals gas injected from the guide hole. (2) Utility model registration Claim 1: The opener with a timer membrane, characterized in that the timer membrane is integrally formed with the lid body. (3) Scope of Utility Model Registration In claim 1, the timer is characterized in that a cylindrical body is provided in the lid body so as to surround the driving nail and engage the stopper body at the lower end opening so as to be movable up and down. Opener with membrane.