JP2001038256A - Insecticide jet apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To start ejection after a definite time is elapsed from a point of time when a button is pushed down by constituting an operation member of a push button and a spring urging the push button upwardly and providing the engaging piece, which is engaged with the engaging part of the engaging plate of a jet nozzle, to the lower end of the push button. SOLUTION: An operation member is equipped with a push button 50, a suction cup 51 and a coil spring 52 and the push button 50 is equipped with a press plate 53 and the side peripheral wall 54 with definite height suspended from the peripheral edge of the press plate 53. The attaching lever 55 of the suction cup 51 and the press cylinder 56 surrounding the attaching lever 55 are arranged in the undersurface of the press plate 53 in a suspended state. An engaging piece 63 consisting of a horizontal plate 61 with constant width and an inclined plate 62 and moved up and down within a horizontal U-shaped wall of which the peripheral surface is made arcuate in the direction reverse to the peripheral surface of the arcuate wall of the side peripheral wall 54 is disposed in the central part of the lower end of the arcuate wall of the side peripheral wall 54 in a projected state. By this constitution, the ejection of an insecticide can be started after a person pushes the push button 50 by this hand and separates from a jet apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an insecticide injection device,
In particular, the present invention relates to an insecticide ejecting apparatus that sets the start of ejection.

[0002]

2. Description of the Related Art An injection device in which an insecticide is sealed in an aerosol can and a button is pressed to inject the insecticide from an injection nozzle is conventionally known. Conventional spraying devices use a push button or other operating member to push down or tilt the stem of the aerosol can to spray the insecticide, and to maintain the pressed down or tilted state, so that the entire contents of the can can be reduced. Was sprayed to fill the closed room.

[0003]

However, in the conventional injection device, injection is started at the same time when the button is pressed down to a predetermined position, so that there is no time for the person to evacuate and the harmful insecticide is inhaled. There was something. In addition, if the button is not pressed down with concern for evacuation, the insecticide cannot be ejected and the button must be operated again.

The present invention has been made to solve the above problems, and in order to allow sufficient time for a person to evacuate, the injection starts after a certain time elapses after the button is pressed and released. It is an object of the present invention to provide an insecticide spray device as described above.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an insecticide spraying apparatus in which a spray nozzle is attached to a stem of a tilting valve, and an operation unit main body equipped with an operation member is aerosolized. An insecticide spray device attached to a can, wherein the spray nozzle includes a nozzle tube provided with a spray port and a locking plate provided with a locking portion on a lower surface of a peripheral edge, and an operation unit main body includes the mounting tube. It comprises a nozzle cover having a top wall provided with a swing regulating hole for the injection nozzle, and an operation member mounting portion having a substrate and a guide wall, and the operation member has a push button and a push button attached upward. The push button is provided with a locking piece at the lower end of the push button for engaging with the locking portion of the locking plate of the injection nozzle.

[0006] As a more specific configuration, an insecticide spraying device in which a spraying nozzle is attached to a stem of a tilting valve and an operation unit main body having an operation member attached to an aerosol can is provided. A nozzle cylinder provided with an injection port and a locking plate, the locking plate having an inclined ring having a guide surface erected on the upper surface of the peripheral edge, and a locking portion which is vertically installed on the lower surface of the peripheral surface at a distance from the peripheral edge. The operating portion main body includes a mounting cylinder, a nozzle cover, and an operating member mounting portion, and the nozzle cover has a side peripheral wall provided upright on an upper wall of the mounting cylinder. And a top wall provided with a swing regulation hole for the injection nozzle. The operation member mounting portion includes a substrate, a side wall erected on the substrate, a circular arc wall, and a vertical wall extending from the top wall. A guide wall consisting of a U-shaped wall and an arc-shaped wall. And the attached been sucker thereunder,
A structure comprising a spring for urging the push button upward, and a locking piece provided at the lower end of the push button with an inclined plate that engages with the locking plate of the injection nozzle. adopt.

[0007]

Next, embodiments of the present invention will be described with reference to the drawings. 1 and 2, A is an aerosol can in which an insecticide is sealed and an aerosol valve is mounted, B is a spray nozzle mounted on the valve, C is an operation unit main body mounted on the aerosol can A, and D is an operation unit main body. An operating member mounted on C, E is an overcap.

[0008] A well-known tilting valve is mounted on the aerosol can A, and a stem 1 attached to the upper end of the valve is provided.
Project upward from the mountain cup 2 of the aerosol can A. Below the mountain cup 2, a mounting ring 3 is formed so as to protrude from the main body of the aerosol can A. The spray propellant and the insecticide are stored in the aerosol can A, the stem 1 is inclined, and the insecticide is ejected when the valve is opened. The agent diffuses and fills the room.

The injection nozzle B is fitted to the upper end of the stem 1 and has an injection port 4 at the upper end as shown in FIG. And a locking plate 7 which spreads out in the shape of a circle. Lock plate 7
Has a guide ring 10 erected on its peripheral edge 8 as a guide surface 9 whose upper side is inclined inward.
A locking ring 12 having a cylindrical surface 11
Is hanging. A locking portion 13 is formed by the peripheral surface of the cylindrical surface 11 of the locking ring 12 and the lower surface of the locking plate 7 between the peripheral surface and the peripheral edge 8.

[0010] As shown in FIGS.
Attachment cylinder 20, nozzle cover 21, and operation member mounting portion 2
It consists of two. The mounting cylinder 20 includes a side peripheral wall 23 and an upper wall 25 provided with an opening 24 inside, and an engagement ring 26 protruding inward is provided at a lower end of the side peripheral wall 23.
The engagement ring 26 is adapted to engage with the lower side of the attachment ring 3 of the aerosol can A, and the inner periphery of the side wall 23 above the engagement ring 26 so as to sandwich the attachment ring 3. A plurality of ribs 27 each having a lower end are arranged at regular intervals.

A plate rib 28 is provided on the operation member mounting portion 22 side.
Is provided, and the inner edge thereof is inclined upward to form an opening 2.
4 and a lower end is a sandwiching end 29 located at the same position as the lower end of the rib 27.

The opening 24 of the upper wall 25 has a semicircular arc portion and two straight portions extending from an end of the semicircle, and an inner periphery of a side peripheral wall 23 of a part of the mounting cylinder 20 as a peripheral edge. Side wall 2
A part of the semicircular portion of the substrate 30 of the operation member mounting portion 22 protrudes inward from 3.

The substrate 30 is formed as the same surface that is continuous with the upper wall 25 and includes a crescent-shaped portion extending around the outer periphery of the mounting cylinder 20 and the semicircular portion protruding inward. A cover side wall 31 is vertically provided from an outer peripheral edge of the portion.

The nozzle cover 21 has an opening 24 in the upper wall 25.
, And a top wall 33. The side peripheral wall 32 includes an arc wall 34 corresponding to an arc part of the periphery of the opening 24 and side walls 35a, b corresponding to the straight part.
And arcuate walls 36a and 36b extending upward corresponding to the side peripheral wall 23 of the mounting cylinder 20.

At the center of the top wall 33, both ends are semicircular arc portions 3 having a slightly larger diameter than the tip of the injection nozzle B.
A swing regulation hole 39 is formed at 7, 38, and the center of one of the circular arc portions 37 is positioned so as to coincide with the axis of the aerosol can A. On the operation member mounting portion 22 side of the top wall 33, a peripheral edge formed of an inwardly concave U-shaped portion and an arc portion is formed, and the U-shaped wall 40 hangs down from the peripheral U-shaped portion, The arc walls 41a and 41b hang down from the arc portion. The lower ends of the U-shaped wall 40 and the arc walls 41a and 41b extend to the same distance and are on the same plane.

The operation member mounting portion 22 is erected on the substrate 30 and continues to both ends of the arc-shaped walls 41a and 41b, and has two side walls 42a and 42b arranged opposite to each other and both ends of the side walls 42a and 42b. And an arc wall 43 to be connected. Side walls 42a, b
Has the same height as the top wall 33, and the height of the arc wall 43 is lower than the side walls 42a and 42b. The height is the same as the upper surface of the push button when the push button of the operation member D is pushed down to the lowermost end.

A guide wall g of the operation member D is formed by the U-shaped wall 40, the arc walls 41a and 41b, the side walls 42a and 42b, and the arc wall 43. The operation member mounting portion is formed by the guide wall g and the substrate 30. 22 are configured.

At the arc wall 34 and the side walls 35a and 35b of the nozzle cover 21, and near the lower end of the arc wall 43 of the guide wall g of the operation member D, bulging protrusions 44 extending in the lateral direction are provided.

The operating member D includes a push button 50 and a suction cup 51.
And a coil spring 52. As shown in FIGS. 7 and 8, the push button 50 includes a holding plate 53 and a side wall 54 having a constant height hanging from the periphery of the holding plate 53. The periphery of the holding plate 53 has a semicircular shape. An arc portion, two parallel straight portions extending from both ends of the arc portion, and a large-diameter arc portion connecting ends of the straight portions are formed. On the lower surface of the holding plate 53, a mounting rod 55 of the suction cup 51,
A holding cylinder 56 that surrounds 5 is vertically provided. A spherical mounting portion 57 is formed at the tip of the mounting rod 55, and the mounting portion 57 protrudes from the lower end of the holding cylinder 56.

The side peripheral wall 54 has an arc portion around the periphery of the holding plate 53,
Arc wall 5 corresponding to each of a straight portion and a large-diameter arc portion
8, the side walls 59a and 59b, and the arc wall 60. At the center of the lower end of the arc wall 58, a horizontal plate 61 having a constant width and an inclined plate 62, which move up and down in the U-shaped wall 40 whose peripheral surface is an arc in a direction opposite to the peripheral surface of the arc wall 58, are formed. Locking piece 63
Is protruding.

The side peripheral wall 54 and the locking piece 63 are slidably inserted into the guide wall g of the operation member D. On both sides of the horizontal plate 61 of the arc wall 58, ridges 64 protrude from the lower end and at positions substantially equal to the upper end of the inclined plate 62, and engage with the lower ends of the arc walls 41a, b to raise the operating member D. The position is regulated.

The suction cup 51 comprises a base 67 having a locking hole 65 formed in the center of the upper surface and a circular groove 66 formed in the lower surface, and a suction cylinder 68 which extends conically from the lower end of the outer periphery of the base 67. The coil spring 52 is mounted in the circular groove 66 so as to urge the operation member D upward. The suction force of the suction cup and the resilience of the coil spring are appropriately set so as to perform the operation described below.

As shown in FIGS. 1 and 2, the overcap E comprises a top wall 80 and a side peripheral wall 81. The peripheral edge of the top wall 80 has two opposing arc portions and both ends of the arc portion. And a straight line connecting the two. The side peripheral wall 81 is
The top wall 8 corresponds to each of the arc portion and the straight portion of the periphery.
It consists of arcuate walls 82a and 82b hanging from zero and a side wall 83. The arcuate walls 82a and 82b and the lower end edge of the side wall 83 are provided with bulging protrusions 84 protruding inward.
Arc wall 34 and side walls 35a and 35b, guide wall g of operation member D
Is engaged with a bulge 44 provided near the lower end of the circular arc wall 43 to cover the nozzle cover 21 and the operation member mounting portion 22.

Next, the mode of use and operation and effect of the injection device will be described. First, an outline of a usage mode is described. An injection device is placed at a predetermined place in a room, an overcap is removed, and a push button is pressed down. Next, when the hand is released from the push button, the injection of the insecticide from the aerosol can is started after a predetermined time, and the insecticide in the can is filled in the room.

The operation and effect at that time will be described in detail with reference to FIG. 9. When the push button 50 is pressed down, the inclined plate 62 of the locking piece 63 engages with the locking plate 7 of the injection nozzle B and pushes down. However, since the tip of the nozzle cylinder 6 is pressed against the arc portion 37 of the swing regulation hole 39 and the stem 1 does not tilt, the inclined plate 62 of the locking piece 63 is
As shown in FIG. 9 (a), the guide member 9 is pressed against the guide surface 9 of the peripheral edge 8 and descends over the peripheral edge 8 to a position below the locking plate 7. Then, the coil spring 52 is compressed, and the suction cup 51 is attracted to the substrate 30.

Next, when the hand is released from the push button 50,
The coil spring 52 is restored, and a constant force acts on the suction cup 51 to deform the suction tube 68. When deformed to a certain state, the suction cylinder 68 overcomes the suction force, separates from the substrate 30, and the push button 50 is raised by the restoring force of the coil spring 52. As shown in FIG. 9B, the tip of the inclined plate 62 of the locking piece 63 of the push button 50 abuts against the lower surface of the locking plate 7 of the injection nozzle B to tilt the nozzle cylinder 6,
When tilted to a predetermined angle, the valve is opened by tilting the stem 1 and the insecticide is sprayed from the spray nozzle B.

At this time, the tip of the nozzle cylinder 6 is
Is maintained in a state in which the tip of the locking piece 63 of the push button 50 is engaged with the lower surface of the locking plate 7 peripheral edge 8 of the injection nozzle B, and the valve is kept open. . Thus, all the insecticide in the aerosol can A is sprayed, diffused and filled in the room.

[0028]

The present invention has the following effects because it is configured as described above. With the suction cup, the lifting of the push button is delayed, so that the locking piece of the push button engages with the locking portion on the lower surface of the locking plate of the nozzle after a certain time,
After the user depresses the push button, releases his hand and then leaves the injector, the injection of the insecticide is started, and there is no longer a risk of inhaling the harmful insecticide.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional front view of the insurrection device of the present invention.

FIG. 2 is a perspective view of an injection device.

FIG. 3 is a partial sectional view of an injection nozzle.

FIG. 4 is a partial cross-sectional front view of an operation unit main body.

5A and 5B are explanatory views of the operation unit main body, wherein FIG. 5A is a top view and FIG. 5B is a cross-sectional plan view taken along line AA of FIG.

FIG. 6 is a bottom view of the operation unit main body.

FIG. 7 is an explanatory view of a push button, (a) is a top view,
(B) is a sectional front view, and (c) is a bottom view.

FIG. 8 is an explanatory view of a suction cup, (a) is a sectional front view, (b)
Is a bottom view.

FIGS. 9A and 9B are explanatory diagrams of a push button operation state, in which FIG. 9A is a diagram illustrating a state where the push button is completely pressed, and FIG.

[Explanation of symbols]

 Reference Signs List A Aerosol can B Injection nozzle C Operation part main body D Operation member E Overcap 1 Stem 3 Mounting ring 4 Injection port 7 Locking plate 9 Guide surface 10 Guide ring 11 Cylindrical surface 12 Lock ring 13 Lock portion 20 Mounting cylinder 21 Nozzle cover 22 Operation member mounting part 23 Side peripheral wall 25 Upper wall 30 Substrate 32 Side peripheral wall 33 Top wall 39 Swing regulation hole 40 U-shaped wall 41 Arc wall 42a, b side wall 43 Arc wall 50 Push button 51 Suction cup 52 Coil spring 53 Pressing plate 54 Side peripheral wall 55 Mounting rod 56 Pressing cylinder 57 Mounting section 60 Arc wall 61 Horizontal plate 62 Inclined plate 63 Locking piece 67 Base 68 Suction cylinder

Claims (2)

[Claims] 1. An insecticide spraying device in which a spray nozzle is attached to a stem of a tilting valve, and an operation unit main body equipped with an operation member is mounted to an aerosol can, wherein the spray nozzle is provided with an injection port. The operation unit main body includes a nozzle cylinder and a locking plate provided with a locking portion on a lower surface of a peripheral edge. The operation unit main body includes a nozzle cover including a mounting cylinder and a top wall provided with a swing restriction hole for an injection nozzle, and a substrate. And an operating member mounting portion having a guide wall. The operating member includes a push button and a spring for urging the push button upward, and a lower end of the push button is locked by a locking plate of the injection nozzle. An insecticide spraying device comprising a locking piece that engages with a part. 2. An insecticide spraying apparatus in which an injection nozzle is attached to a stem of a tilting valve, and an operation unit main body having an operation member is attached to an aerosol can, wherein the injection nozzle has an injection port. The locking plate is composed of a nozzle cylinder and a locking plate. The locking plate has an inclined ring having a guide surface erected on the upper surface of the peripheral edge, and a locking device formed on the lower surface of the peripheral surface at a distance from the peripheral edge to form a locking portion. The operation unit main body includes a mounting cylinder, a nozzle cover, and an operation member mounting unit, and the nozzle cover has a side peripheral wall erected on an upper wall of the mounting cylinder,
A top wall provided with a swing regulation hole for the injection nozzle, wherein the operation member mounting portion is a U-shaped vertically extending from the substrate, a side wall erected on the substrate, an arc wall, and the top wall. The operating member comprises a push button, a suction cup attached below the push button, and a spring for urging the push button upward, and a lower end of the push button. And a locking piece provided with an inclined plate that engages with the locking plate of the spray nozzle.