JPH0561060U - Packaging sprayer spout - Google Patents

Abstract

(57) [Summary] [Purpose] A packaging sprayer spout that can spray the contents even with a packaging sprayer having a small valve diameter by holding the packaging sprayer body in the hand and pressing the spout lightly with the thumb. To provide. In a spout of a packaging sprayer in which a joint cylinder 1 having an open bottom and a nozzle 3 standing upright on a top wall 2 of the joint cylinder 1 are integrated, an upper half portion of a side wall 4 of the joint cylinder 1 is provided. Two vertical slits 5, 5'are provided, and a horizontal slit 7 communicating with the vertical slits 5, 5'is provided on the outer periphery of the mounting base 6 of the nozzle 3 on the top wall 2, so that the joint cylinder 1 and the nozzle 3. A spout for a packaging sprayer, which is connected to a connecting plate 8 having an L-shaped cross section.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spout for a packaging sprayer. More specifically, the present invention relates to a spout of a packaging sprayer that can spray the contents by holding the packaging sprayer body in the hand and lightly pressing the spout with a thumb. The spout of the packaging sprayer according to the present invention is convenient as a spout of a packaging sprayer filled with cosmetics, insecticides, paints, etc., and is particularly suitable as a spout used for a packaging sprayer having a small valve diameter. It is something.

[0002]

[Prior Art]

 The spout of the packaging sprayer is composed of a joint cylinder whose lower side is open and a nozzle which is erected above the top wall of the joint cylinder, and is used by fitting it to the main body of the packaging sprayer filled with contents. .. Conventionally known spouts for packaging sprayers include the following two types depending on the form of the valve constituting the upper part of the main body of the packaging sprayer.

One is a spout attached to a tilt type valve (see FIG. 4). The spout attached to this tilt type valve is configured to be able to spray the contents filled in the packaging sprayer main body 22 even if a lateral force is applied to the nozzle 3 (hereinafter, referred to as " The first known spout ").

In the first known spout, the joint cylinder 1 and the nozzle 3 are temporarily connected by a connecting plate 8 ′ provided on the top wall 2 of the joint cylinder 1, and the nozzle 3 is pushed down at the start of use. As a result, the connecting plate 8'is cut and the nozzle 3 and the stem 20 are directly connected. In the tilt type valve, a gap is provided between the stem 20 and the periphery of the stem insertion hole 24, a stem rubber receiver 31 having a large diameter is provided, and the side wall of the stem rubber receiver 31 and the stem receiver 29 are provided. Since the play is provided between the side wall and the side wall, the stem 20 has a structure that is extremely easy to fall down.

The other is a spout attached to a push-down type valve (see FIGS. 5 and 6). The spout attached to this push-down type valve is configured to be able to spray the contents filled in the packaging sprayer main body 22 by pushing down the nozzle 3 (hereinafter, referred to as "second known spout"). That.).

In the second known spout, the top wall 2 of the joint cylinder 1 is provided with a horizontal slit 7 along the circumference thereof, leaving a horizontal connecting plate 8 ″ for connecting the joint cylinder 1 and the nozzle 3, and the spout is connected. An upward pushing portion 9 is provided along the side surface of the nozzle 3 on the plate 8 ″ side. In the push-down type valve, the rising portion 25 is provided around the mouth portion of the stem insertion hole 24 (the rising portion 25 may not be provided in some cases), and between the stem 20 and the rising portion 25. Since there is no gap between the stem rubber receiver 31 and the diameter of the stem rubber receiver 31 and there is no play between the stem rubber receiver 31 and the stem receiver 29, the stem 20 can only move up and down. It is said that.

[0007]

[Problems to be solved by the device]

 As described above, the first known spout has a structure in which the stem 20 is extremely prone to fall. Therefore, when a downward or lateral force is applied to the nozzle 3 directly connected to the stem 20, the force is considerably increased. Even if it is weak, the stem rubber 27 bends downward to open the insertion hole 26, and the injection port 10 of the nozzle 3 and the injection port 21 of the stem 20 communicate with the interior of the packaging sprayer main body 22 to form a packaging sprayer. The content filled in the main body 22 can be sprayed. This is an advantage that the injection operation can be performed with extremely weak force, and at the same time, the content is ejected regardless of the intention of the user.

Therefore, compared to such a first known spout, a stronger force is required for the jetting operation, but since the content is not jetted unless the nozzle 3 is pushed down, the content is irrelevant regardless of the user's intention. At present, the second known spout, which is less likely to be sprayed, is more widely used. In this second known spout, when the valve diameter is large, the distance from the fulcrum (root portion of the connecting plate 8 ″) to the point of action (contact point between the nozzle 3 and the stem 20) is long, so that the force point (pressing portion 9 ), The locus of the point of action drawn around the fulcrum becomes larger, so that the larger the valve diameter, the closer the force received by the stem 20 becomes in the vertical direction. The force applied to the required force point may be relatively small.

However, when the valve diameter is small, the distance from the fulcrum to the point of action becomes short, and the locus of the point of action drawn around the fulcrum becomes small. Therefore, the smaller the valve diameter, the more obliquely the force received by the stem 20 becomes, and the problem arises that the force applied to the force point required to push down the stem 20 becomes larger. For example, in a packaging sprayer having a valve with a diameter of 25 mm, the force applied to the force point required to push down the stem 20 requires 2.0 kgf. Further, when the force received by the stem 20 is inclined downward, the fitting portion between the spout nozzle 3 and the valve stem 20 is distorted, which causes problems such as hindering smooth injection of the contents. ..

In view of the fact that the demand for a packaging sprayer having a small valve diameter is increasing, the present inventor has made various studies in order to solve the above problems of the second known spout. As a result, it was found that if the distance from the fulcrum to the point of action could be increased in the spout of the packaging sprayer with a small valve diameter, the above problems could be solved, and the present invention was completed based on this finding. It came to do.

[0011]

[Means for Solving the Problems]

 That is, a spout of a packaging sprayer according to the present invention is a spout of a packaging sprayer in which a joint cylinder 1 having an open lower side and a nozzle 3 standing upright on a top wall 2 of the joint cylinder 1 are integrated, Two vertical slits 5, 5'are provided in the upper half of the side wall 4 of the joint cylinder 1, and a horizontal slit communicating with the vertical slits 5, 5'on the outer periphery of the mounting base 6 of the nozzle 3 on the top wall 2. By providing the slit 7, the joint cylinder 1 and the nozzle 3 are connected by a connecting plate 8 having an L-shaped cross section.

The spout of the packaging sprayer according to the present invention can be applied not only to a packaging sprayer body having a push-down type valve that has been conventionally used, but also to a packaging sprayer body having a tilt type valve. it can. An embodiment in which the spout of the packaging sprayer according to the present invention is applied to a push-down type valve will now be described in detail with reference to FIGS. 1 and 2.

A valve mount 23 having a stem insertion hole 24 in the center is fitted on the top of the packaging sprayer main body 22, and a rising portion 25 is provided around the mouth of the stem insertion hole 24. The stem 20 is inserted into the stem insertion hole 24. An insertion hole 26 is provided in the constricted portion of the system 20, and when not in use, the insertion hole 26 is closed by the inner surface of a ring-shaped stem rubber 27. The insertion hole 26 is opened by being bent. The lower half of the stem 20 is held by a stem receiver 29 via a spring 28. Incidentally, reference numeral 30 in the drawing denotes a step, and a container cap (not shown) is fitted into this step 30.

The packaging sprayer main body 22 having such a structure is covered with the spout of the packaging sprayer according to the present invention, and the joint cylinder 1 and the valve mountain 23, and the stem gripping hole 11 and the stem 20 are fitted respectively. In use, when the pushing portion 9 is pushed downward, the stem 20 held in the stem holding hole 11 is pushed down. As a result, the stem rubber 27 is bent downward, the insertion hole 26 closed by the stem rubber 27 is opened, and the injection port 10 of the nozzle 3 and the injection port 21 of the stem 20 and the interior of the packaging sprayer main body 22. And the contents filled in the packaging atomizer main body 22 are communicated with each other and are ejected from the ejection port 10 through the insertion hole 26 and the ejection port 21.

The characteristic structure of the spout of the packaging sprayer according to the present invention is that two vertical slits 5 and 5 ′ are provided in the upper half portion of the side wall 4 of the joint cylinder 1, and the nozzle 3 in the top wall 2 is provided with the vertical slits 5 and 5 ′. Since the horizontal slit 7 communicating with the vertical slits 5 and 5'is provided on the outer periphery of the mounting base 6, the joint cylinder 1 and the nozzle 3 are connected by a connecting plate 8 having an L-shaped cross section. is there. With this characteristic structure, the operation and effect of the present invention described later can be obtained.

In the present invention, as long as it has the above-mentioned characteristic structure, the following embodiments can be adopted. In the present invention, it is essential that the pushing portion 9 is provided on the top wall 2, but when the pushing portion 9 faces directly upward like the second known spout, the packaging sprayer main body 22 is prevented. Since the belly of the thumb of the held hand must be parallel to the surface of the pushing portion 9, the jetting operability is lacking.

Therefore, in order to improve the operability, a push-up portion 9 obliquely upward is formed integrally with the nozzle 3 on the side surface of the nozzle 3 on the connecting plate 8 side. In the second known spout applied to the packaging sprayer having a small valve diameter, since the distance between the fulcrum and the point of action is short, if the pushing portion 9 is directed obliquely upward, more force is required at the force point. However, in the spout of the packaging sprayer according to the present invention, as will be described later, the distance between the fulcrum and the action point can be lengthened, and the locus of the action point drawn around the fulcrum can be enlarged. The nozzle 3 can be pushed down with a light force even when the pushing portion 9 is directed obliquely upward.

Further, in the present invention, since the connecting plate 8 connecting the joint cylinder 1 and the nozzle 3 has an L-shaped cross section, as described later, the distance between the fulcrum and the action point is increased, The locus of the action point drawn around the fulcrum can be enlarged, and the nozzle 3 can be pushed down with a light force. However, if the width of the connecting plate 8 is too wide, it will be difficult to bend, and a strong force is required to push down the nozzle 3. On the other hand, if the width of the connecting plate 8 is too narrow, it tends to break. Therefore, when deciding the width of the connecting plate 8, it is necessary to consider both sides, and although it depends on the material of the spout, the thickness of the connecting plate 8, etc., it is usually in the range of 1.5 mm to 20 mm, particularly preferably. It may be appropriately selected and determined within the range of 2.0 mm to 12 mm.

When the spout according to the present invention is applied to a packaging sprayer having a small valve diameter, when the nozzle 3 is located at the center of the top wall 2, the contact area of the thumb with the pushing portion 9 is reduced. , The injection operability becomes poor. In order to solve such a problem, as shown in FIGS. 1 to 3, the injection port 10 of the nozzle 3 should be offset from the injection port 21 of the stem 20 in the direction opposite to the connecting plate 8. Good. Further, if the nozzle 3 faces upward as shown in FIGS. 1 and 2, it may be inconvenient to use. In order to solve such a problem, as shown in FIG. 3, the nozzle 3 may be bent 90 degrees in the direction opposite to the connecting plate 8.

Furthermore, when a flexible resin is selected as the material of the spout, when a force is applied to the force point, the locus of the action point drawn centering on the fulcrum is slightly slanted on the side opposite to the fulcrum. Direction. However, when a flexible resin such as polyethylene resin or polypropylene resin is selected as the material of the spout, the connecting plate 8 bends when a force is applied to the force point, so the fulcrum is drawn as the center. The locus of the point of action is corrected in the vertical direction, and the force required for the force point may be smaller.

[0021]

[Action]

 In the spout of the packaging sprayer according to the present invention, since the connecting plate 8 connecting the joint cylinder 1 and the nozzle 3 has an L-shaped cross section, the spout of the present invention is different from the second known subout which is the horizontal connecting plate 8 ″. , The distance from the fulcrum (root of the connecting plate) to the point of action (contact point between nozzle and stem) becomes longer.

[0022]

[Effect of the device]

 Since the spout of the packaging sprayer according to the present invention has the above-described configuration and operation, it has the following effects. Even if the nozzle diameter is small, the distance from the fulcrum (root of the connecting plate) to the point of action (contact point between the nozzle and stem) is long, so the locus of the point of action drawn around the fulcrum is large. Therefore, when a force is applied to the force point (pushing portion), the nozzle can be pushed down in a state close to the vertical direction, so that the nozzle can be pushed down easily even if the force applied to the stem is small. For example, in a packaging sprayer having a valve with a diameter of 25 mm, the force required for the force point when the pushing part is directed diagonally upward is only about 0.7 kgf, and even when the pushing part is facing upward, the force point is required. The force was about 1.5 kgf.

Further, since the nozzle is pushed down in a state close to the vertical direction, the fitting portion between the stem and the nozzle is not distorted. Therefore, the contents in the packaging sprayer body are sprayed into the smooth.

[Brief description of drawings]

FIG. 1 is a perspective view of a spout of a packaging sprayer according to the present invention.

FIG. 2 is a central longitudinal cross-sectional view of a main part of a packaging sprayer according to the present invention with a spout fitted to the packaging sprayer body.

FIG. 3 is a central longitudinal sectional view of another embodiment of the spout of the packaging sprayer according to the present invention.

FIG. 4 is a central longitudinal cross-sectional view of a main part of a state in which a first known spout is fitted into a packaging sprayer body.

FIG. 5 is a perspective view of a second known spout.

FIG. 6 is a central longitudinal cross-sectional view of a main part of a state in which a second known spout is fitted to a packaging sprayer main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint cylinder 2 Top wall 3 Nozzle 4 Side wall 5 Vertical slit 5'longitudinal slit 6 Mounting base 7 Horizontal slit 8 Connecting plate 9 Pushing part

Claims (2)

[Scope of utility model registration request] 1. A spout of a packaging sprayer in which a joint cylinder (1) having an open bottom and a nozzle (3) standing above a top wall (2) of the joint cylinder (1) are integrated, and an upper half of a side wall (4) of the joint cylinder (1). Is provided with two vertical slits 5 and 5 ', and the vertical slits 5 and 5'are provided on the outer periphery of the mounting base 6 of the nozzle 3 on the top wall 2.
A spout for a packaging sprayer, characterized in that the joint cylinder 1 and the nozzle 3 are connected by a connecting plate 8 having an L-shaped cross section by providing a lateral slit 7 communicating with 5 ′. 2. The spout for a packaging sprayer according to claim 1, wherein a push-up portion 9 that is obliquely upward is formed integrally with the nozzle 3 on the side surface of the nozzle 3 on the connecting plate 8 side.