JP2006015299A - Jetting pattern-variable head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive jetting pattern-variable head the jetting angle of which can be adjusted widely or narrowly, the number of whose components is made small and which is assembled easily. <P>SOLUTION: This jetting pattern-variable head is constituted so that the jetting/spreading angle of contents is adjusted by making variable the relative distance between a revolution plane on which a plurality of radial flow passages, through each of which contents are made to pass, are formed and a plane opposed to the revolution plane. The jetting pattern-variable head is provided with: a head body (6-1) to be connected to a vessel which has a cylindrical grooved part and a concentric cylindrical part in the cylindrical grooved part and in which contents are packed; and a jetting nozzle member (6-2) having a hollow cylindrical part to be connected to the cylindrical grooved part. The jetting nozzle member is rotated so that the relative distance is made variable between the radial flow passage-formed revolution plane and the tip plane of the cylindrical part of the head body, which is opposed to the revolution plane. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ejection pattern variable head that can adjust the ejection angle applicable to an aerosol and a pump with a simple configuration with few parts.

The following is known as an injection button capable of adjusting the injection angle for an aerosol container. (For example, see Patent Document 1)
The aerosol container spray button described in Patent Document 1 will be described below.
An aerosol container injection button according to an example of an embodiment of the present invention will be described with reference to FIGS. 1 to 3. The mounting cap 2 provided on the top of the aerosol container 1 is provided with a valve mechanism, and the stem 3 protrudes in an upward biased state so as to inject contents by a push-down operation. The injection button 10 has an upper surface 12 that functions as a push-down operation portion, and a vertical nozzle portion 13 that has a base end portion 13a fitted to the stem 3 and extends upward and has a vertical flow path 13b formed therein. And the nozzle which has the horizontal direction nozzle part 15 provided with the horizontal direction pipe part 15a connected to a substantially orthogonal direction at the upper end part is formed.

  A front nozzle opening in the front part 11a of the outer peripheral surface of the injection button 10 in the horizontal nozzle part 15 is fitted with a nozzle member 16 having a horizontal nozzle 16a at the center as a nozzle part, and the annular claw part 16d is in the horizontal direction. The tube portion 15a is locked in the concave portion. Further, the horizontal pipe portion 15a accommodates a slide bar 20 on its peripheral surface so as to be slidable while being guided by the flange-like seal portion 29. The diameter of the slide bar 20 is set smaller than the inner diameter of the inner peripheral surface of the horizontal tube portion 15 a, and an annular horizontal flow path 28 is formed around the slide bar 20. A coil spring 27 is attached to the rear portion of the slide bar 20 whose diameter has been reduced and compressed between the stepped surface and the rear portion 11 b of the outer peripheral surface of the injection button 10.

  A plurality of radial channels 18 communicating with the central injection port 16a are formed in the rear end peripheral surface 16b of the injection port 16a. On the other hand, the slide bar 20 has an outer diameter located closer to the center than the distal end portion 18a of the radial flow path 18, so that the front end surface 21 abuts the radial flow path 18 at the advanced position, and the centrifugal side thereof. It is closed leaving the end 18a.

  An engaging portion 26 bulges out at the rear end portion of the slide bar 20 protruding rearward from the rear portion 11b of the outer peripheral surface, and a vertical portion in which the engaging portion 26 is rotatably fitted to each other at the center portion of the knob 30. A groove 31 is formed, and the engaging portion 26 is locked by an annular locking portion 31a at the front end thereof. The front end surface 33 of the knob 30 attached to the slide bar 20 in this way corresponds to the curvature of the outer peripheral surface 11 of the cylindrical injection button 10, that is, the outer peripheral surface rear portion 11b, in the longitudinal direction on both sides with respect to the slide bar 20. It is formed in an arc shape. End portions 33a on both sides in the longitudinal direction of the front end surface 33 function as followers for the outer peripheral surface rear portion 11b that functions as a cam surface. Concave portions 11c for engaging both end portions 33a are formed at positions corresponding to the end portions 33a on both the upper and lower sides with respect to the slide bar 20 in the outer peripheral surface rear portion 11b.

  The operation of the aerosol container injection button configured as described above is as follows. As shown in FIG. 3, in the normal position where the knob 30 is oriented in the lateral direction, the front end surface 33 is in contact with the outer peripheral surface rear portion 11b, the slide bar 20 occupies the forward movement position, and the front end surface 21 is the injection port 16a. The rear end peripheral surface 16b is in pressure contact with the spring force. When the upper surface 12 of the injection button 10 is pushed down, the content flows from the longitudinal channel 13b to the centrifugal side end 18a of the radial channel 18 via the annular transverse channel 28 around the slide bar 20. To do. By passing through this radial flow path, a rotational force is generated in the injection port 16a, and it is injected with a wide diffusion angle.

When the knob 30 is rotated 90 ° from the normal position, as shown in FIG. 1, the longitudinal direction thereof is directed vertically, and the end portions 33a on both sides of the front end surface 33 are engaged with the concave portions 11c to set the switching position. Is done. In this process, the end portion 33a is driven along the curved surface of the outer peripheral surface rear portion 11b against the spring force and gradually retracts, and the slide bar 20 occupies the retracted position of the maximum stroke. As a result, the front end face 21 is separated from the radial flow path 18, and the contents directly flow into the entire area and the injection port 16a. The rotational force of the discharge flow of the contents is suppressed, and the injection angle is narrowed.
JP-A-2002-173184, FIGS. 1 to 3 (0007) to (0012)

In the conventional aerosol container spray button,
Although the spray angle for the aerosol container can be adjusted in a wide and narrow manner, there are problems that a large number of parts are required and that a lot of procedures are required for the assembly and the cost is high.

  An object (object) of the present invention is to provide an ejection pattern variable head that can adjust the ejection angle in a wide and narrow manner, has a small number of parts, is easy to assemble, and is inexpensive.

In order to solve the above-mentioned problem, by changing the relative distance between the swirling surface formed with a plurality of radial flow paths through which the contents pass and the plane facing the swirling surface, the jet diffusion angle of the contents can be changed. An injection pattern variable head to be adjusted,
A head body coupled to a container filled with contents, having a cylindrical groove and a concentric cylindrical section in the groove, and a nozzle having a hollow cylindrical section coupled to the cylindrical groove Members,
By rotating the nozzle member, the relative distance between the swiveling surface in which the radial flow path is formed and the front end plane of the cylindrical portion of the head main body facing the swiveling surface is variable. (Claim 1)

As a coupling means between the cylindrical groove portion of the head body and the hollow cylindrical portion of the nozzle member,
The material constituting the head body is made of a material softer than the material of the nozzle member, and a screw is formed outside the hollow cylindrical portion of the nozzle member to be joined. (Claim 2)
The screw is formed of a multi-thread screw. (Claim 3)
The nozzle member is provided with a handle for rotating the nozzle member relative to the head body. (Claim 4)
A restriction member for restricting the rotation range of the nozzle hole member is provided. (Claim 5)
The spray pattern variable head can be attached to an aerosol type or pump type container. (Claim 6)

  According to the first to sixth aspects of the invention, it is possible to realize an ejection pattern variable head that has a small number of parts, is easy to assemble, and is inexpensive.

  In the conventional aerosol container injection button, the adjustment of the injection pattern is performed when the slide bar 20 is in the forward position and the front end surface 21 thereof is in contact with the radial flow path 18 and closed with the centrifugal side end 18a being closed. When an object flows from the longitudinal flow path 13b into the distal end 18a of the radial flow path 18 via the circular cross-sectional flow path 28 around the slide rod 20, it passes through this radial flow path. When the slide bar 20 is in the retracted position, the front end surface 21 is separated from the radial flow path 18 in the first state in which the rotational force is generated in the injection port 16a and the slide bar 20 is in the retracted position. The contents directly flow in, and the rotational force of the discharge flow of the contents is suppressed to adjust the second state where the injection angle is narrowed.

The basic principle of changing the injection pattern in the present invention is the same as that of the conventional injection button shown in FIGS.
This will be described in detail below with reference to FIGS.
A feature of the ejection pattern variable head of the present invention is that it can be composed of two parts, a head main body and a nozzle member.

4A and 4B show the head main body, where FIG. 4A is a front view thereof, and FIG. 4B is a cross-sectional view taken along the aa ′ plane.
Reference numeral 4-1 denotes a cylindrical groove into which a later-described head member is inserted.
5A is a front view of the nozzle, FIG. 5B is a front view thereof, FIG. 5B is a side view thereof, FIG. 5C is a cross-sectional view taken along the aa ′ plane, and FIG. FIG.
In FIG. 5D, a plurality of radial flow paths are formed on the inner wall of the cylindrical groove.
As can be understood from FIGS. 5B and 5C, a screw (male screw) 5-2 is formed in the cylindrical portion 5-1 of the nozzle member, and an injection pattern adjustment for rotating the nozzle member is performed. A handle 5-3 is formed.

The nozzle member shown in FIG. 5 is inserted into the cylindrical groove of the head body shown in FIG. 4 to constitute the jet pattern variable head of the present invention.
The nozzle member is inserted into the cylindrical groove of the head body by pushing into the groove formed slightly smaller than the diameter of the screw formed in the cylinder of the nozzle member. It is designed to be deformed by a screw.
For this purpose, a material harder than the material of the head body is used for the nozzle member.
Specifically, the nozzle member uses a material such as polybutylene terephthalate, polyacetal, and nylon, and the head member uses a material such as polyethylene and polypropylene.

Next, how the spray pattern can be changed in a state where the nozzle member is inserted into the cylindrical groove of the head body will be described below with reference to FIGS.
FIG. 6 shows a state in which the ejection pattern adjustment handle of the ejection pattern variable head of the present invention is rotated upward.
6A is a front view, FIG. 6B is a top view thereof, and FIG. 6C is a cross-sectional view taken along the aa ′ plane.

  As can be understood from FIG. 6C, by rotating the injection pattern adjustment handle upward, the screw formed on the cylindrical portion 5-1 formed integrally with the injection pattern adjustment handle portion is Due to the action, the nozzle member is retracted inward in the cylindrical groove 4-1 and is closed with only a radial passage, and in this state, the content liquid passes through the radial flow path. As a result, a rotational force is generated in the injection port, and injection is performed with a wide diffusion angle.

FIG. 7 shows a state in which the ejection pattern adjustment handle portion of the ejection pattern variable head of the present invention is rotated in the measuring direction.
7A is a front view, FIG. 7B is a top view thereof, and FIG. 7C is a cross-sectional view taken along the aa ′ plane.

As can be understood from FIG. 7C, the screw formed on the cylindrical portion 5-1 formed integrally with the ejection pattern adjustment handle portion by rotating the ejection pattern adjustment handle portion upward. By the action of the above, the nozzle member advances in the outer direction of the cylindrical groove portion 4-1,
Since the front surfaces of the radial flow paths are separated from each other, the rotational force of the discharge flow of the contents is suppressed and the diffusion angle becomes small.

Thus, the diffusion angle of the contents can be adjusted by changing the ejection pattern adjustment handle from the upper side to the side.
The injection diffusion angle of the contents can be finely adjusted by setting the injection pattern adjustment handle to an angle between FIG. 6 and FIG.

In the description of FIGS. 4 and 5, a plurality of radial flow paths are formed on the inner wall of the cylindrical groove formed in the head member. This radial flow path is a cylindrical portion inside the cylindrical groove. You may form in the front-end | tip part.
The drawing in that case is shown in FIG.
8A is a diagram corresponding to FIG. 5D, FIG. 8C is a diagram corresponding to FIG. 4B, and FIG. 8D is equivalent to FIG. 6C. It is a figure to do.

Further, as the “screw” formed on the cylindrical portion formed on the head member, a “multi-thread screw” is desirable.
A “multiple thread” is a thread in which two or three spirals are formed in one pitch. As shown in FIG. 9, when the distance (lead) traveled by one rotation is a single thread, “Pitch = Lead”, but in the case of multi-threads, “Lead is a multiple of the pitch of the pitch”, so many leads (distance) with few rotations (90 degrees in FIGS. 6 and 7) This is more desirable.

  As is apparent from the above description, the spray pattern variable head of the present invention may be an aerosol type or a pump type as a container to be used.

  Since the invention according to claims 1 to 6 has a small number of parts, and can be easily assembled at low cost and can realize an inexpensive jetting pattern variable head, the industrial applicability is very large.

It is a figure which shows the cross section of the injection button for conventional aerosol containers. It is a figure which shows the conventional nozzle hole member. It is a partially broken view which shows the normal state of the conventional injection button. It is a figure which shows the head main-body part of this invention. It is a figure which shows the nozzle member of this invention. It is a figure which shows the state which rotated the handle for injection pattern adjustment of the injection pattern variable head of this invention upwards. It is a figure showing the state where the handle part for jetting pattern adjustment of the jetting pattern variable head of the present invention was rotated to measure. It is a figure at the time of forming a radial flow path in the front-end | tip part of the cylindrical part inside a cylindrical groove part. It is a figure explaining the lead and pitch of a multi-thread screw.

Explanation of symbols

6-1 Head body 6-2 Spout member 6-3 Spout

Claims (6)

This is an ejection pattern variable head that adjusts the ejection diffusion angle of the contents by varying the relative distance between the swirling surface formed with a plurality of radial flow paths through which the contents pass and the plane facing the swirling surface. And
A head body coupled to a container filled with contents, comprising a cylindrical groove and a concentric cylinder in the groove;
A nozzle member having a hollow cylindrical portion coupled to the cylindrical groove portion;
The jet is characterized in that the relative distance between the swiveling surface in which the radial flow path is formed and the front end plane of the cylindrical portion of the head main body facing the swiveling surface is varied by rotating the nozzle member. Pattern variable head. As a coupling means between the cylindrical groove portion of the head body and the hollow cylindrical portion of the nozzle member,
2. The jet according to claim 1, wherein the material constituting the head body is made of a material softer than the material of the nozzle member, and a screw is formed outside the hollow cylindrical portion of the nozzle member to be joined. Pattern variable head. The jet pattern variable head according to claim 2, wherein the screw is a multi-thread screw. The ejection pattern variable head according to any one of claims 1 to 3, wherein the nozzle member includes a handle for rotating the nozzle member relative to the head body. . The ejection pattern variable head according to claim 4, further comprising a regulating member that regulates a rotation range of the nozzle hole member. The ejection pattern variable head according to claim 1, which can be attached to an aerosol type or pump type container.

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