JP2007204089A - Cap for aerosol can - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remaining gas exhausting mechanism in a cap for an aerosol can. <P>SOLUTION: A part of the top plate of the cap is formed into a lid plate 16 rising and falling around a thin-walled hinge 15 as a center and opening and closing, and a folding-down plate part 22 bent and hung by pushing down from the upper part is provided on a lower part of the lid plate. After a liquid becomes empty in the aerosol can, by pushing down the folding-down plate part 22 under a condition that the cap 11 is fitted to the aerosol can, the lower end of the folding-down plate can fold down a jetting button 4 of the aerosol can to a remaining gas jetting position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an aerosol can cap.

  There has been proposed an aerosol can in which an ejection head can be constrained to an ejection position by a shoulder cover attached to the aerosol can. (For example, see Patent Document 1)

  The aerosol can described in the above-mentioned Patent Document 1 has an injection button fitted at the base end of a spring-biased valve stem protruding from the head of a cylindrical aerosol can. The shoulder cover is configured to be restrained at the injection position.

More specifically, the shoulder cover includes an outer peripheral surface portion that covers the shoulder portion of the aerosol can, and an annular upper surface peripheral portion that is formed at the upper end and that is centered on the valve stem. Further, claws are projected outward from at least two positions on both sides of the peripheral surface portion of the injection button with respect to the valve stem. Further, in the upper surface periphery, an arc is formed along the rotation direction from the lower end of the side surface portion of the guide groove formed in the vertical direction so as to guide the vertical movement of the claw that responds to the pressing operation of the injection button. The guide surface portion and the claw moved upward by the spring bias of the valve stem are formed upward continuously from the end of the rotation direction of the guide surface portion so as to restrain the claw at the injection position, and the claw is formed at the upper end. A claw restraining groove having an abutting surface portion to abut is formed.
JP 2004-188373 A.

  The conventional aerosol can can be continuously ejected by degassing, releasing by hand, or injecting the entire amount only by rotating the spray button. Therefore, there is an advantage that the residual gas after the stored liquid is used up can be easily discharged. However, in order to achieve such an operation and effect, the aerosol can must be provided with a complicated guide groove and a claw restraining groove as described above, resulting in a complicated structure. Moreover, since the nail | claw must be formed also in an injection button, there also exists inconvenience that the existing injection button cannot be used.

  The present invention is provided so that the residual gas can be easily and reliably discharged using a cap fitted to an aerosol can.

As a first means, an aerosol in which a cover plate 16 is formed by piercing a separation line from both ends of a thin hinge 15 horizontally provided in the left and right direction of a rear portion of a top plate portion surrounded by an inner cylinder 14 hanging from the top plate 12 to both left and right portions of the front plate front end. Can cap 11 and
A vertical plate 19 is horizontally provided between the left and right sides of the inner cylinder in front of the thin hinge, and a folding plate portion 22 is protruded forward to the inner cylinder 14 in front of the vertical plate via a bending portion 21, When the folding plate portion is lowered, the lower end of the folding plate portion is fitted to the outer surface of the annular ridge 3 at the upper end of the aerosol can when the lower portion of the inner cylinder 14 is fitted to the gas ejection position of the aerosol can. It was formed so that it could be pushed down.

As the second means, the first means is provided, and support plates 20 are projected forward from both left and right sides of the vertical plate 19, and the folding plate portion is bent by the refracting portion 21 at the front ends of the both support plates. 22 is supported, and the sandwiched plate portion 23 protrudes backward from the rear edge of the folded plate portion between the two support plates,
Also, a plurality of clamping pieces 18 are suspended from the lower surface of the lid plate 16,
When the lid plate 16 is tilted and closed while the folding plate portion 22 is suspended by the refraction portion refraction and the sandwiched plate portion 23 is standing, the sandwiching piece 18 sandwiches the sandwiched plate portion 23. The rocking in the front-rear direction can be prevented.

  As a third means, when the first or second means is provided and the hook 26 is suspended from the lower surface of the folding plate portion 22 and the folding plate portion 22 is suspended by refraction for refraction. The hook is in contact with the lower surface of the vertical plate, and the claw 27 at the tip of the hook is formed so as to be locked to the rear surface of the vertical plate.

  By forming the cap as described in claim 1, the cap does not need to be provided with holes or irregularities on the outer surface of the cap as in the case of a special cap for venting gas that is normally used, thereby improving the appearance. In order to maintain the horizontal state in the state before the folding, the folding plate part does not become an obstacle when the cap is fitted to the aerosol can. Since the cover plate covers the upper part of the folding plate when the lid plate is closed, the folding plate portion is not accidentally folded.

  According to the second aspect, when the folding plate 22 is suspended, the clamping piece 18 projected from the lower surface of the lid plate 16 clamps the sandwiched plate 23, so that the cap can be fitted to the aerosol can. In this state, the folding plate does not fall down in the front-rear direction, so that the injection button can be pressed down reliably.

  According to the third aspect of the present invention, the hook 26 keeps the hanging plate part 22 in the suspended state, and the injection button is pushed down reliably.

  Referring to the drawings, reference numeral 1 denotes a conventionally known aerosol can, which has a shoulder 2 standing up from the upper end of the trunk so as to taper inward, and from the upper end of the shoulder, the upper end of the shoulder and the aerosol. An annular ridge 3 formed by winding the outer periphery of the can top wall together is erected. 4 is an injection button with a nozzle hole 5, which is fitted to the upper end of the stem standing up through the center of the top wall. When the injection button is pushed down against the bias, the liquid in the can The spray button rises by the release of the press-down and stops the liquid spray.

  11 is a cap, and the outer cylinder 13 is hung from the outer periphery of the top plate 12 and the inner cylinder 14 is suspended with a gap between the outer cylinder, and the inner cylinder has its lower end at the outer surface of the annular ridge 3 described above. The lower end of the outer cylinder 13 is placed on the upper surface of the outer peripheral portion of the shoulder portion 2. Thin hinges 15 are provided in the left-right direction at the rear part of the top plate part surrounded by the inner cylinder 14, and a cut line is drilled in parallel from the left and right ends of the thin hinges to the left and right parts of the front end of the top plate. A cover plate 16 that undulates as a center is formed. A closing plate 17 is provided between the upper ends of the inner and outer cylinders covered by the lower surface of the lid plate part in front of the inner cylinder 14. A plurality of clamping pieces 18 are suspended from the lower surface of the cover plate 16. As shown in FIG. 3, when the cover plate is erected from the upper side as shown in FIG. 3, the first holding piece 18a provided large in the middle in the left-right direction is provided with the second small two provided on the left and right sides of the holding piece. 1 and 4, when the lid plate is tilted and viewed from the side, the first clamping piece 18a is located rearward and the second clamping piece 18b is located forward. However, a gap is formed between the first sandwiching piece and the two sandwiching pieces as viewed from the side.

  A vertical plate 19 is provided horizontally in the upper part between the left and right side walls of the inner cylinder in front of the thin hinge 15. As shown in FIG. 3, the vertical plate is provided with a vertical plate 19 in the middle of the thin hinge 15 parallel to the thin hinge 15 as viewed from above and parallel to the thin hinge passing through the center of the top plate. As shown in FIG. 3, the support plate 20 protrudes forward from the upper front portions of the left and right ends of the vertical plate portion seen from above when the cover plate stands, and the inner cylinder in front of the vertical plate 19 that opens and closes the cover plate 16. 14 is covered with a folding plate portion 22 connected to the front ends of the two support plates by a refracting portion 21 for forming a hinge, and the rear portion of the folding plate portion is covered between the two support plates. The clamping plate portion 23 is protruded rearward. Further, the contact plate 24 is suspended from the lower surface of the folding plate portion 22. Note that ribs 25 are laterally provided in the front-rear direction on the upper surfaces of the left and right sides of the folding plate portion.

  From the state of FIG. 1 shown in the above configuration, the cover plate 16 is raised upward with the thin hinge 15 as the center, as shown in FIG. 2, and the front portion of the folding plate portion 22 is pushed down and bent. When the folding plate portion 22 is suspended from the working portion 21 as shown in FIG. 4, the above-described sandwiching plate portion 23 stands up from the refracting portion 21 as shown in FIG. By tilting 16 and closing, the above-described first clamping piece 18a comes into contact with the rear surface of the sandwiched plate portion 23 and the second sandwiching piece 18b comes into contact with the front surface of the sandwiched plate portion 23. When the first and second sandwiching pieces 18a and 18b are viewed from the side as shown in FIG. 4, the sandwiched plate portion is sandwiched, that is, when viewed from above, the first sandwiching piece 18a is covered. The second clamping piece 18b is in contact with the left and right portions of the front surface of the sandwiched plate portion, so that the folding plate portion 22 is kept in a suspended state. If the cap 11 is fitted to the aerosol can 1 from this state, the lower end of the folding plate 22 pushes the injection button 4 to the residual gas injection position. In the illustrated example, the upper surface of the injection button 4 is inclined, and when the folding plate 22 is pushed down, the lower end of the folding plate 22 pushes down the inclined surface and pushes the injection button 4 to the residual gas injection position. It is provided as follows. It is to be noted that the above-described abutting plate 24 is in contact with the lower front surface of the vertical plate 19 in the hanging plate portion hanging state, and the folding plate portion 22 is stopped in the hanging state.

  FIG. 5 shows a modification of FIG. 4. The abutment plate 24 of FIG. 4 is used as a hook 26, and the hook comes into contact with the lower surface of the vertical plate 19 when the folding plate portion 22 is pushed down. Is provided to engage with the rear surface of the vertical plate 19.

  The cap can be integrally formed of a synthetic resin material with the lid plate 16 standing and the folding plate portion 22 not folded.

It is a cap longitudinal cross-sectional view shown by the fitting state to an aerosol can. It is a cap longitudinal cross-sectional view shown in a lid plate standing state. It is a top view which shows the cap of FIG. It is an expanded sectional view of the cap shown in the injection button pushing state of an aerosol can. It is an expanded sectional view which shows FIG. 4 by a modification.

Explanation of symbols

3 Annular ridge 11 Cap
13 Outer cylinder 14 Inner cylinder
15 Thin hinge 16 Cover plate
18a first clamping piece 18b second clamping piece
19 Vertical plate 20 Support plate
21 Refraction part 22 Folding plate part
23 Plate for clamping 26 Hook

Claims (3)

A cap 11 of an aerosol can in which a cover plate 16 is formed by piercing a separation line from both ends of the thin hinge 15 laterally arranged in the left and right direction of the rear portion of the top plate portion surrounded by the inner cylinder 14 hanging from the top plate 12 to form both sides of the top plate front end. There,
A vertical plate 19 is horizontally provided between the left and right sides of the inner cylinder in front of the thin hinge, and a folding plate portion 22 is protruded forward to the inner cylinder 14 in front of the vertical plate via a bending portion 21, When lowering the folding plate, the lower end of the folding plate pushes the spray button 4 of the aerosol can to the gas ejection position when the lower part of the inner cylinder 14 is fitted to the outer surface of the annular ridge 3 at the upper end of the aerosol can. An aerosol can cap characterized in that it can be lowered. The support plate 20 is projected forward from the left and right sides of the vertical plate 19, and the bent plate portion 22 is supported by the refracting portion 21 at the front end of both the support plates, and from the rear edge of the folded plate portion. The sandwiched plate part 23 protrudes backward between the two support plates,
Also, a plurality of clamping pieces 18 are suspended from the lower surface of the lid plate 16,
When the lid plate 16 is tilted and closed with the folding plate portion 22 hanging down by the refraction portion refraction and the sandwiched plate portion 23 standing up, the sandwiching piece 18 sandwiches the sandwiched plate 23, The aerosol can cap according to claim 1, wherein swinging in the front-rear direction can be prevented. When the hook 26 is suspended from the lower surface of the folding plate portion 22 and the folding plate portion 22 is suspended by refraction, the hook contacts the lower surface of the vertical plate, and the hook 27 at the tip of the hook has the vertical plate. The cap of the aerosol can according to claim 2, wherein the cap is formed to be able to be locked to the rear surface.

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