JP2006341173A - Spraying device and sprayer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trigger type spraying device usable conveniently by not only an ordinary person but also an aged person particularly having a weak grip or a low degree of freedom in a joint or a handicapped person, and to provide a sprayer. <P>SOLUTION: The spraying device P is fit to the mouth part 10a of a vessel 10 and used for pushing a stem 17 into a cylinder by operating a trigger lever 23 to jet the contents in the vessel 10 from a spout 28 through the pushed stem. A spraying member 24 having the spout 28 is fit to the stem 17 to be freely turned around the stem without being disturbed by the trigger lever 23. For example, the spraying member 24 is arranged on the upper part of the outside of the trigger lever 23 and fit to the stem 17 to be freely turned around the stem without being disturbed by the trigger lever. The sprayer is composed by fitting the spraying device P to the mouth part 10a of the vessel 10. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an injection device that is attached to a mouth portion of a container, operates a trigger lever to push a stem, and injects the contents of the container from the injection port of an injection member to the outside through the stem. The present invention also relates to an ejector for makeup, hair styling, and the like, in which such an ejection device is attached to the mouth of a container.

  Conventionally, in the trigger type ejector, as shown in FIG. 11, for example, the container 1 is held, an index finger or the like is put on the trigger lever 2, and the trigger lever 2 is rotated in the direction indicated by the arrow with the support shaft 3 as a fulcrum. 4, the pump type pumps up the contents of the container 1, and the aerosol type pushes out the contents of the container 1 with the pressure of the propellant and passes through the stem 4 from the injection port 6 of the injection member 5 attached to the stem 4 to the outside. It was jetting.

JP 2003-230854 A

  However, in such a conventional trigger type ejector, the trigger lever 2 is attached to the column portion 7 by the support shaft 3 and can be rotated in the vertical plane direction which is the operation direction, but the horizontal plane direction around the stem 4 Could not rotate. Therefore, the injection member 5 located in the trigger lever 2 is also prevented from rotating around the stem 4 by being prevented from rotating by the trigger lever 2, and the contents are injected in the operation direction of the trigger lever 2. The direction was fixed.

  When this type of ejector is a hair spray, the spray liquid is applied to the frontal head a and the neck circumference b as shown in FIG. 12, the rear head c as shown in FIG. For example, when it is actually applied to the neck circumference b, it is used as shown in FIG. 14 or used as shown in FIG. 15, and there are cases where it is convenient and bad.

  Conventionally, the wrist must be returned and used, and when it is not easy to use, the trigger lever 2 has been used with a thumb as shown in FIG. 16, but in this case as well, the handle becomes loose. I couldn't deny that it was sometimes difficult to use.

  Therefore, an object of the present invention is to provide an easy-to-use trigger-type injection device and ejector for not only ordinary people but also elderly people and handicapped persons who have a weak grip strength or a reduced degree of joint freedom. It is to provide.

  Therefore, the invention described in claims 1 to 4 is an injection device that is attached to the mouth portion of the container, operates the trigger lever to push the stem, and injects the contents of the container from the injection port through the stem. The injection member which has is attached so that it can rotate with respect to a stem, without being disturbed by a trigger lever. For example, the injection member is provided on the outside of the trigger lever, and the injection member is attached to the stem so as to be rotatable about the stem without being blocked by the trigger lever.

  Then, the contents are attached to the mouth of the container, and when used, the injection member is appropriately rotated around the stem in accordance with the injection target portion to which the contents are applied, and the contents from the injection opening of the injection member with respect to the operation direction of the trigger lever Change the injection direction.

  The injection member may be provided with a finger contact portion that allows the stem to be pushed down by applying a finger, and a cover member is rotatably attached to the trigger lever so that the cover member covers the injection member and the cover. When the member is rotated, the injection member may be rotated together.

  A fifth aspect of the present invention is a pump-type ejector characterized by attaching the injection device according to any one of the first to fourth aspects to a mouth of a container. The invention described in claim 6 is an aerosol type ejector characterized in that the injection device according to any one of claims 1 to 4 is attached to the mouth of a container.

  Therefore, according to the first to fourth aspects of the present invention, it is attached to the mouth of the container, and when used, the injection member is appropriately rotated around the stem in accordance with the injection target site, and the contents with respect to the operation direction of the trigger lever. Since the injection direction of the object is changed, the injection direction of the contents is not fixed with respect to the operation direction of the trigger lever as in the past, and a trigger type injection device that is easy to use, for example, when injecting to the back of the head Can be provided. In particular, it is useful for elderly people or disabled persons whose grip strength is weak or whose joint freedom is reduced.

  According to the third aspect of the present invention, since the finger member is provided on the spray member so that the finger can be pushed down and the stem can be pushed down, it can be used not only as a trigger type but also as a push type. Usability can be further improved by rotating the trigger lever or depressing the injection member appropriately and selectively according to the target site or the condition of the user's physical disorder.

  According to the invention described in claim 4, since the spray member is covered with the cover member, the appearance can be improved by hiding the attachment portion to the stem so as not to be seen.

  According to the fifth and sixth aspects of the invention, during use, the injection member is appropriately rotated with respect to the stem in accordance with the injection target site, and the injection direction of the contents with respect to the operation direction of the trigger lever is changed. The injection direction of the contents is not fixed with respect to the operation direction of the trigger lever, and it is possible to provide a pump-type and aerosol-type ejector that is easy to use, for example, when spraying to the back of the head. In particular, it is useful for elderly people and persons with disabilities who have a weak grip or a reduced degree of joint freedom.

The best mode of the present invention will be described below with reference to the drawings.
FIG. 1 shows an external appearance of a reciprocating pump type ejector, and FIG. 2 shows a central longitudinal section thereof.

  Reference numeral 10 in the figure denotes a container. The container 10 is made of a plastic material in the shape of a bottle and is provided with a male screw on the outer periphery of the mouth 10a. Although not shown, in this example, a hair-styling jet liquid is stored inside as a content.

A pump-type injection device P is attached to the mouth 10 a of the container 10.
The pump type injection device P is provided with a screw cap 11. The screw cap 11 has a female screw on the inner periphery, and has a center hole in the center of the top. Then, the top portion is placed on the flange 12a of the cylinder 12, and is put on the mouth portion 10a of the container 10 and screwed.

  The cylinder 12 is provided with a flange 12 a and an air suction hole 12 b that penetrates in the radial direction. The upper end of the cylinder 12 protrudes upward through the center hole of the screw cap 11. On the other hand, the lower portion of the cylinder 12 is provided with a suction port 12c and a tube attachment port 12d in the interior. And the upper end part of the pipe 13 is press-fit in the pipe attachment port 12d, and the inside of the pipe 13 and the suction port 12c are connected. On the contrary, a valve seat that gradually decreases in diameter toward the lower side is provided immediately above the suction port 12c.

  In such a cylinder 12, a ball-shaped check valve 14 is placed and placed on the valve seat, and then a coil spring 15 is inserted and placed on the stepped portion. Thereafter, a stem 17, which also serves as a piston, to which the on-off valve 16 is attached is inserted and placed on the coil spring 15. The stem 17 has a tubular shape and is provided with an ejection passage 17a. The stem 17 communicates with the ejection passage 17a and is provided with a lateral hole 17b in the radial direction. A circumferential groove is formed on the outer periphery of the lateral hole 17b.

  On the other hand, the on-off valve 16 has a cylindrical shape and is provided with an annular convex portion 16a protruding inward from the inner surface at an intermediate portion. The annular convex portion 16 a is fitted into the circumferential groove, and the outer peripheral upper and lower portions of the on-off valve 16 are slidably pressed against the inner peripheral surface of the cylinder 12.

  Incidentally, a color ring 18 is provided at the upper end of the cylinder 12. The coloring ring 18 is formed by concentrically forming an outer cylinder part and an inner cylinder part, and extends a column part 18a obliquely upward from the outer cylinder part. Then, the inner cylinder portion is inserted into the cylinder 12, the lower end is abutted against the upper end of the on-off valve 16, the coil spring 15 is slightly compressed via the stem 17, and the outer cylinder portion is covered on the upper end portion of the cylinder 12. Hang on.

  As a result, the stem 17 is pushed up by the urging force of the coil spring 15, the lower step portion of the circumferential groove is pressed against the lower surface of the annular convex portion 16 a of the on-off valve 16, and communication between the ejection path 17 a and the cylinder chamber 20 is established. Cut off. The stem 17 protrudes upward through the inner cylindrical portion of the coloring ring 18. A pair of circular engagement protrusions 17 c are formed at the upper end of the stem 17 at corresponding positions on the outer periphery.

  On the other hand, the base end of the trigger lever 23 is attached to the tip end of the column portion 18 a of the coloring ring 18 with a horizontal support shaft 22. The trigger lever 23 is bent at a right angle, and a notch 23a is provided in the bent portion, the tip of the stem 17 is passed through the notch 23a, and the trigger lever 23 is placed on the pair of circular engagement protrusions 17c. Then, the trigger lever 23 is attached so as to be rotatable in the vertical plane direction around the support shaft 22, and the stem 17 can be pushed into the cylinder 12 when rotated.

  An injection member 24 is attached to the tip of the stem 17 protruding upward through the notch 23a of the trigger lever 23 so as to be rotatable around the stem 17 in the horizontal plane direction. At this time, an O-ring 25 is provided at the engaging portion between the stem 17 and the injection member 24 to prevent liquid leakage from between them.

  The injection member 24 has a fan shape, and the cylindrical base end of the nozzle holder 26 is fitted to the main part thereof. The nozzle holder 26 has a nozzle member 27 attached to the tip end side, and an injection port 28 provided in the nozzle member 27 communicates with the discharge passage 30 in the injection member 24.

  Now, when using this ejector, the container 10 is held by hand, the injection port 28 is directed to the injection target portion where the injection liquid is applied, the trigger lever 23 is rotated against the coil spring 15, and the stem 17 is pushed into the cylinder 12. Then, due to frictional resistance with the inner surface of the cylinder 12, the stem 17 moves at the position where the on-off valve 16 remains as it is, and the upper step of the circumferential groove contacts the upper surface of the annular convex portion 16 a of the on-off valve 16.

  As the stem 17 is pushed in, the on-off valve 16 is deformed to open the lateral hole 17b, and the cylinder chamber 20 and the ejection passage 17a are communicated with each other, while the pressure in the cylinder chamber 20 is increased and the contents in the cylinder chamber 20 are laterally expanded. It is sent out to the ejection path 17a through the hole 17b, put into the ejection member 24, and ejected from the ejection port 28 to the outside through the discharge passage 30.

  When the usability is poor, the injection member 24 provided on the trigger lever 23 is appropriately rotated around the stem 17 in accordance with the injection target portion, and the content from the injection port 28 of the injection member 24 with respect to the operation direction of the trigger lever 23 The injection direction of the object is variable. For example, as shown in FIG. 3, the injection member 24 is rotated 180 degrees around the stem 17 in the horizontal plane direction. Thereby, the injection direction of the content from the injection port 28 with respect to the operation direction of the trigger lever 23 is reversed, and the usability during use is improved depending on the target portion.

  By the way, for example, as shown in FIG. 4, the ejection member 24 may be provided with a finger contact portion 32 that allows the stem 17 to be pushed down by applying a finger. In this way, even if the trigger lever 23 is rotated or the injection member 24 is pushed down, the contents can be injected from the injection port 28 and can be used as a trigger type or a push type. In addition, it is possible to further improve the usability by using the trigger lever 23 by selectively rotating the injection lever 24 or pushing down the injection member 24 as appropriate according to the injection target site or the state of the physical disorder of the user. .

5 to 8 show another example of the ejector.
In the ejector of this example, a cover member 33 is rotatably attached to the trigger lever 23, and the cover member 33 covers the injection member 24. When the cover member 33 is rotated, the injection member 24 also rotates. To do.

  That is, in the state shown in FIG. 5, when the trigger lever 23 is operated in the direction of arrow A, the contents are ejected from the ejection port 28 in the direction of arrow B. However, when the cover member 33 is rotated in the direction of arrow C in the horizontal plane direction around the stem 17 from that state, the injection member 24 in the cover member 33 is pushed in the horizontal plane direction around the stem 17 in the horizontal plane direction. It rotates in the direction of arrow C, and it will be in the state shown in FIG. In the state shown in FIG. 6, when the trigger lever 23 is operated in the arrow D direction, the contents are ejected from the ejection port 28 in the arrow E direction.

  When the cover member 33 is further rotated in the arrow C direction from the state shown in FIG. 6, the cover member 33 is pushed again and the injection member 24 in the cover member 33 is also rotated in the arrow C direction around the stem 17. The state shown in FIG. In the state shown in FIG. 7, if the trigger lever 23 is operated in the direction of arrow D, the content is ejected from the ejection port 28 in the direction of arrow F with the direction of ejection of the content being reversed. And, for example, as shown in FIG. 8, it is used when jetting toward the frontal region.

FIG. 9 and FIG. 10 show still another example ejector using a cover member.
In this example, the lower portion of the pipe 34 is press-fitted into the tip of the stem 17, the injection member 24 is attached to the upper portion of the pipe 34 so as to be rotatable around the pipe 34, and the cover member 33 is appropriately rotated on the trigger lever 23. It attaches freely and covers the injection member 24 with the cover member 33. When the cover member 33 is rotated around the stem 17, the injection member 24 is also rotated. When the trigger lever 23 is operated, as shown in FIG. 10, the cover member 33 attached to the trigger lever 23 is also rotated, and the spray member 24 is pushed down together with the stem 17.

  In the above-described example, when the pump type injection device P is attached to the mouth portion 10a of the container 10 and the trigger lever 23 is operated, the contents of the container 10 are once pumped into the cylinder chamber 20, and then the cylinder chamber 20 Is applied to a pump-type ejector that injects the contents of the injection member 28 from the injection port 28 to the outside, and the injection member 24 is rotated around the stem 17 so that the injection port of the injection member 24 with respect to the operation direction of the trigger lever 23 The injection direction from 28 was made variable.

  However, when an aerosol-type injection device is attached to the mouth of the container, the contents are stored together with the propellant in the container, and the trigger lever is operated, the outlet valve is opened and the contents of the container are injected with the pressure of the propellant. The spraying direction from the spraying port of the spraying member can be made variable with respect to the operating direction of the trigger lever by applying the spraying member 24 around the stem 17 in the same manner. You can also

It is an external appearance perspective view of the pump type ejector which concerns on this invention. It is the center longitudinal cross-sectional view. It is an external view of the state which rotated the injection member and changed the injection direction. It is an external appearance perspective view of the other examples of the pump type ejector which concerns on this invention. It is an external appearance perspective view of the further another example of the ejector which concerns on this invention. It is an external view of the state which rotated the injection member and changed the injection direction. It is an external view of the state which rotated the injection member further and changed the injection direction. It is a use condition figure of an ejector in the state. It is a center longitudinal cross-sectional view of the further another example of the ejector which concerns on this invention. It is an external view of the state which rotated the trigger lever. It is a use condition figure of the conventional ejector. It is a figure which shows the injection target site | part of an ejector. It is a figure which shows the other injection target site | part of an ejector. It is an actual use condition figure toward an injection target part. It is another use condition figure. It is a figure which shows the case where it uses with a thumb on the trigger lever of the conventional ejector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Container 10a Mouth part 17 Stem 23 Trigger lever 24 Injection member 28 Injection port 32 Finger contact part 33 Cover member P Injection apparatus

Claims (6)

In the injection device that attaches to the mouth of the container, operates the trigger lever to push the stem, and injects the contents of the container from the injection port through the stem,
An injection apparatus, wherein an injection member having the injection port is rotatably attached to the stem without being obstructed by the trigger lever.   The injection device according to claim 1, wherein the injection member is provided on the trigger lever, and the injection member is rotatably attached to the stem without being obstructed by the trigger lever.   The injection device according to claim 2, wherein a finger contact portion that enables the stem to be pressed down by applying a finger to the injection member is provided.   The cover member is rotatably attached to the trigger lever, the cover member covers the injection member, and the injection member also rotates when the cover member is rotated. The injection device described in 1.   A pump-type ejector, wherein the injection device according to any one of claims 1 to 4 is attached to a mouth portion of a container.   An aerosol ejector, wherein the spray device according to any one of claims 1 to 4 is attached to a mouth portion of a container.

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