JP2002332080A - Rotary locked-type spray head for aerosol container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary locked-type spray head for an aerosol container with which a sense of operation can be made light. SOLUTION: The rotary locked-type spray head includes a spray head body separately formed of a nozzle 10 and a button 20, and a cover cap 30 mounted on a top of the aerosol container for covering a periphery of the spray head body and formed with an opening 33 facing a spray port formed on a front. The nozzle 10 is fitted in a stem at its lower end and includes a frontward spray port at its upper end. The button 20 has an upper surface section 21 which is equipped with a projection 23 to be limited and serves as a control part, and a peripheral surface section 22. A step 36 is formed in a circumferential direction in the vicinity of the upper surface of the cover cap 30, lowering of the projection 23 is limited by a step face 36a on a first stage, and when the button 20 is rotated in a circumferential direction, the projection 23 occupies a position above a step face 36b on a second stage which is relatively low to allow the projection to be pressed down. Engaging portions 16 and 26 which limit relative rotations and allow relative rising/lowering slides are formed on the peripheral surface section 22 of the button 20 and a peripheral surface section of the nozzle 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray head body which is fitted to a stem of an aerosol container and sprays forward by a pushing-down operation, and is mounted on the top of the aerosol container to cover the periphery of the spray head body. And an opening facing the injection port is provided with a cover cap formed in the front, and the downwardly protruding restraining projection projecting rearward from the upper surface of the injection head main body is formed around the upper surface of the cover cap. When the protruding piece is restrained by the rotation of the ejection head body and occupies the upper position of the relatively low height of the second step, the push-down operation is performed. The present invention relates to a rotation lock type injection head for an aerosol container that can be used.

[0002]

2. Description of the Related Art A jet head of this kind is disclosed in Japanese Utility Model Laid-Open No. 52-1.
In the state where the rotation position of the ejection head body is set to the lock position, the lowering of the projecting piece is restrained by the first step surface, and when the projecting piece is rotated to the operating position, the projecting piece becomes It is possible to move to a position above the adjacent second step surface and perform a pressing operation.

[0003]

However, since the ejection head main body is integrally formed including the nozzle portion and the operation portion, the portion fitted to the stem can be locked and unlocked by rotating and lifting. By interlocking,
There is room for improvement in terms of the weight of the operation feeling.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide a rotary lock type jet head for an aerosol container as described above, which can reduce the operational feeling.

[0005]

In order to achieve the above object, according to the present invention, according to the first aspect, a lower end portion is fitted to a stem protruding from the top of an aerosol container, and a forward injection port is provided. A jet head body that is pressed down with an upper end portion, and a cover cap that is attached to the top of the aerosol container and covers the periphery of the jet head body, and an opening facing the jet port is formed on the front. A stepped portion is formed in the circumferential direction around the stem around the upper surface of the cover cap, and the downwardly protruding restraining projections protruding rearward from the upper surface of the ejection head main body are stepped. When the ejection head body is rotated in the circumferential direction while being constrained by the first stepped surface of the portion, the protruded piece occupies the upper position of the relatively low second stepped surface. Air now capable of pushing down In the rotary lock type injection head for the barrel container, the injection head body is fitted to the stem at the lower end, and a nozzle provided with a forward injection port at the upper end and a protruding piece for restraining are operated by being protruded. An engaging portion formed separately from a button having an upper surface portion and a peripheral surface portion serving as a portion, and constraining relative rotation on the peripheral surface portion of the button and the peripheral surface portion of the nozzle, and allowing relative lifting and lowering sliding. Is formed.

[0006] When the button is rotated between the locked position and the operating position, the nozzles are interlocked with the rotation of the button by the mutual engaging portions, but not with the elevation. Due to this, the opening position of the cover cap and the rotational position of the injection port are always the same,
Only the height relationship changes.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A jet head for an aerosol container according to an embodiment of the present invention will be described with reference to FIGS. At the top of the aerosol container 1, a mounting cap 2 having a valve mechanism therein and projecting the stem 3 in an upwardly biased state is mounted. As shown in FIG. 1, the injection head mounted on the top of the container has a nozzle 10 formed separately and a lever-shaped protruding piece 23 for restraint projected rearward, and an upper surface portion serving as an operation portion. Button 2 having a peripheral portion 22 partially surrounding the periphery of the back side of the button 21
And a peripheral surface portion 31 that covers the periphery of the ejection head body 9 by engaging the ejection head main body 9 formed of an outer periphery of the ejection head body 9 with the outer periphery of the curled portion of the mounting cap 2 with an annular projection 31a at the lower end.
And a cover cap 30 having an opening 33 facing the later-described injection port 13a formed on the front surface.

The nozzle 10 has a center post-shaped vertical flow path portion 11 fitted to the stem 3 at a lower end portion, and an outlet member 13 connected forward at an upper end thereof and having a forward injection port 13a (FIG. 4). (See FIG. 2) is formed in an inverted L-shape with a lateral flow path portion 12 having a fitting opening 12a at the front end into which the fitting opening 12a is fitted.

The cylindrical peripheral surface portion 22 of the button 20 has a corresponding inner diameter so that the vertical flow path portion 11 having a circular cross section can be inserted, and a cutout opening 24 through which the horizontal flow path portion 12 is inserted from below is formed. Is formed. A pair of claw portions 24a are formed on the lower edge of the opening so as to protrude so as to flatten the bottom of the base of the lateral flow path portion 12 and to lock the edge portions 18 formed on both sides from below. Have been.

Further, the relative rotation between the button 20 and the nozzle 10 is restricted, and the up-and-down slide is allowed as an uneven engagement portion. Rail-like projections 26 on both sides
Are formed, and two vertical protruding pieces 16 are formed on the upper portions of the peripheral surface portions on both sides of the vertical flow path portion 11 so as to form grooves 16a for guiding the vertical movement of the protrusions 26. Have been.

As shown in FIG. 3, the upper surface 32 of the cover cap 30 has a circular opening 35a larger than a semicircle centered on the stem 3 and a front opening for guiding the lifting and lowering and rotation of the button 20. Wide fan-shaped opening 35b
, And a concentric arc-shaped opening 35c is formed outward of the opening 35. Further, the upper surface peripheral portion 32a which is raised outside the opening 35c of the upper surface portion 32 includes:
The stepped portion 36 is formed in a concentric arc shape, and the height of the first stepped surface 36a is lowered stepwise from the general surface of the upper surface peripheral portion 32a, and the height is further reduced to be the same as the upper surface portion 32. Is formed in the circumferential direction around the stem 3. The step surface 36a restricts the lowering of the projecting piece 23, and the step surface 36b is set to allow the lowering.

On the other hand, a lower edge portion is formed on the outer periphery of the upper surface portion 21 of the button 20 and a pair of guide pieces 25 are further extended to extend the button 20 so that the button 20 can be protruded. When the 23 rotates clockwise from the operating position close to the stair surface 36b to the lock position as viewed in the figure, the inclined edge 25a comes into contact with the clockwise edges of the openings 35b and 35c, The button 20 is driven to the upper step surface 36a. In addition, stair surface 36
The rising surface 36c of b is also inclined so as to drive the projecting piece 23 upward.

The operation of the rotary lock type jet head for an aerosol container thus configured is as follows. The button 20 is inserted through the opening 35a, and the protrusion 26 is
In the assembled state engaged with the a, the claw portion 24a locks the lateral flow path portion 12 protruding forward from the opening 35 from below. Accordingly, the button 20 is prevented from being pulled upward by being locked by the nozzle 10 having the long lateral flow path portion 12 that is restricted from being pulled upward at the edge of the opening 35.

In the locked position, the protruding piece 23 rides on the stair surface 36a and the operation of pressing down the button 20 is restrained, and the injection port 13a is rotated clockwise from the position facing the opening 33 and hidden.

When the projecting piece 23 is rotated toward the step surface 36b, the nozzle 10 is interlocked by the engagement between the projecting part 26 and the projecting piece 16 with the guide piece 25 having escaped upward through the openings 35b and 35c. By rotating, one of the pair of guide pieces 25 falls into the opening 35 c, the other falls into the fan-shaped opening 35 b and approaches the edge thereof, and the injection port 13 a faces the opening 33, and The rotation operation is restricted by the rising surface 32b of the upper peripheral portion 32a. Button 20
Is pressed down, the upper surface portion 21 lowers the nozzle 10 in a state of contact with the upper surface thereof, whereby the stem 3 moves downward, and the injection is performed from the injection port 13 a through the opening 33.

It should be noted that various configurations other than the above may be considered as the engaging portion that restricts relative rotation between the peripheral surface portion of the button and the peripheral surface portion of the nozzle and allows vertical movement.

[0017]

According to the first aspect of the present invention, the ejection head main body is separated into a nozzle fitted to the stem and a button for covering the nozzle, so that the ejection head can be moved up and down when rotating the button. Interlocking of the nozzles can be avoided, and lock / unlock operations become lighter. According to the invention of claim 2,
The operation feeling can be reduced with a simple configuration even for a normal ejection head having an inverted L-shaped nozzle.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a rotation lock type ejection head for an aerosol container according to an embodiment of the present invention.

FIG. 2 is a bottom view of a cap of the ejection head.

FIG. 3 is a plan view of a cover cap of the ejection head.

FIG. 4 is a sectional view of the ejection head.

FIG. 5 is a perspective view showing an operation state of the ejection head.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Aerosol container 2 Mounting cap 3 Stem 9 Injection head main body 10 Nozzle 11 Vertical flow path part 12 Horizontal flow path part 13a Injection port 16a Groove 20 Button 21 Button upper surface part 22 Button peripheral surface part 25 Guide piece 26 Projection part 30 Cover cap 32 Upper surface portion of cover cap 32a Peripheral portion of upper surface of cover cap 33, 35, 35a, 35b, 35c Opening 36 Step portion 36a, 36b Step surface

Claims (2)

[Claims] 1. A jet head main body which is fitted to a stem protruding from the top of an aerosol container at its lower end, has a front jet port at an upper end, and is operated by pushing down, and an aerosol container top. A cover cap which is attached to cover the periphery of the ejection head main body, and has an opening facing the ejection port formed at the front, and a step in the circumferential direction around the stem around the upper surface of the cover cap. Is formed, and the downward movement of the restrained protruding piece protruding rearward from the upper surface of the ejection head body is restrained by the first step surface of the step portion, and the ejection head body rotates in the circumferential direction. In this case, the locked protruding piece occupies an upper position of the relatively low height of the second-step stair surface to enable a pushing-down operation. When the head body is At the lower end, and a nozzle having a front ejection port at the upper end, and a button having an upper surface and a peripheral surface which is an operation unit with a protruding piece for restraining protrudingly formed. A rotation lock type for an aerosol container characterized in that an engagement portion for restricting relative rotation and allowing relative lifting and lowering slide is formed on a peripheral surface portion of the button and a peripheral surface portion of the nozzle. Injection head. 2. A nozzle according to claim 1, wherein said nozzle has a center post-shaped vertical flow path fitted to said stem at a lower end thereof, and a horizontal flow path connected forwardly to an upper end thereof and having an injection port at a front end thereof. A concave and convex engaging portion is formed in the peripheral surface of the button and the nozzle in the vertical direction, and a notch for inserting the horizontal flow path portion from below on the peripheral of the button, and the notch is inserted in the notch. 2. A rotary lock type jet head for an aerosol container according to claim 1, wherein a pair of claws on both sides for locking said lateral flow path portion from below are formed.