JPH0733179A - Aerosol valve and assebling method and device of aerosol valve - Google Patents

Abstract

PURPOSE:To assemble an aerosol valve without damage of the function thereof, by supporting the valve housing of a valve structure by a protrusion provided at the lower end of the valve structure container of a mountain cap. CONSTITUTION:A hollow space 4 is formed in the inside of the lower support mold 3 of a mountain cap 1 so as to pierce through it and a cylindrical member 5 is provided to be reciprocally movable in the space 4. One or more protrusive claws 12 for preventing the valve structure from coming out are arranged. The protrusive claws 12 press and break a part of the downward circular protrusions of the mountain cap 1 or the whole thereof and support the valve housing 16 and assemble the aerosol valve so as to prevent the valve structure from coming out. In this way, it can be assembled without compulsive forces on the aerosol valve and the mountain cap 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerosol valve, an apparatus for assembling an aerosol valve, and a method for assembling the same.
More particularly, it relates to a device for assembling a valve structure in a mountain cap and a method for assembling the same, and more particularly to clinching a portion of an annular downward projection of a mountain cap on a housing part of the valve structure by a crushing claw of a clinching member.

[0002]

2. Description of the Related Art In order to incorporate a valve structure of a conventional aerosol valve into a mountain cap, a stem with a rubber stem and a housing with a stem rubber are installed at a valve structure housing diaphragm riser in a central portion of the mountain cap. Part, that is, the inside of the valve structure accommodating cylinder, and the clinch claws that can be actuated in a lever-like manner from several lateral sides are bitten at appropriate positions on the outer peripheral surface part of the throttle rising part of the valve structure accommodating cylinder. Therefore, the valve structure including the valve housing has been incorporated into the mountain cap to strongly bond the two.

[0003]

However, in the method of assembling an aerosol valve by such a clinch method, a throttle for accommodating the valve structure at the outer peripheral surface of the valve housing and the central portion of the mountain cap, which requires extremely high accuracy. There is an influence due to the clinch claw being caught between the rising portion, that is, the inner peripheral surface portion of the valve structure housing cylinder, and there is a possibility that defective products may be produced among the products for which the valve assembly has been completed. Also, in the process of biting the clinch claw,
The tip of the clinch pawl not only deforms the squeezed part for storing the valve structure in the center part of the mountain cap, but also the clinch pawl force acts even on the outer peripheral surface of the valve housing, which hinders the valve function. There was a risk of causing it. The present invention aims to eliminate the above-mentioned drawbacks.

[0004]

In an aerosol valve assembling apparatus, a claw-shaped projection, which is capable of crushing all or part of a downwardly projecting squeezing portion provided on a bottom surface of a mountain cap, is formed on a cylindrical member. Provided at the tip and requires an upper support mold of the mountain cap and a lower support mold of the mountain cap, sandwich the mountain cap between the lower support mold and the upper support mold, and then lower support A tubular member reciprocally inserted into the space inside the mold is raised against the resilience of a spring built into the space, and is crushed by a crushing claw at the tip of the tubular member. The valve housing is supported by crushing all or part of the downward annular protrusion that is a member for supporting the valve housing formed on the bottom surface of the mountain cap, and is removed from the valve structure. A method of assembling an aerosol valve, characterized in that is as otherwise.

[0005]

[Function] The valve structure is housed in the valve structure housing portion in the center of the mountain cap, and the upper part of the mountain cap is disposed above the mountain cap housing the valve structure. A lower supporting die of the mountain cap is arranged in the lower portion of the mountain cap, and then a space portion having a diameter larger than the outer peripheral side portion of the downward annular protrusion provided at the lower end of the valve structure housing portion of the mountain cap is provided. Formed inside the lower supporting mold,
Then, insert a tubular member that can reciprocate in the front-back (up and down) direction with a larger diameter space and a flange in the middle, and always downward with the resilience of the built-in coil spring. Since it is biased, first of all, by advancing the tubular member against the coil spring, i.e., advancing upward, all or part of the annular portion that is expanded inward from the inside toward the outside. Assemble the aerosol valve by crushing all or part of the downwardly projecting annular protrusion of the mountain cap by the surface of the beveled part, which is a beveled part, to support the valve housing and prevent the valve structure from coming out. This allows the assembly process to proceed without applying excessive force to the aerosol valve part and the mountain cap part except for the annular protrusion. That.

[0006]

EXAMPLE Two molds 2 and 3 of an upper supporting mold 2 of a mountain cap 1 and a lower supporting mold 3 of a mountain cap 1
So that the mountain cap 1 can be supported between them, and a movable device for forming a valve structure retaining protrusion is arranged inside the lower support mold 3 of the mountain cap 1, and the lower support mold of the mountain cap 1 is provided. Space 4 inside 3
A cylindrical member 5 which can be reciprocated in the space 4 and is provided in the middle portion of the cylindrical member 5.
Of the tubular member 5 provided on the lower supporting die 3 with the flange portion 6 serving as a spring seat 8 on one side of the compression coil spring 7 and the other spring seat 9 on the compression coil spring 7 provided. The guide recess of the flange portion 6 is provided in the shoulder portion 10 of the space for disposing the coil spring 7, and the female screw hole on the opposite side of the shoulder portion is provided to prevent the flange portion 6 of the tubular member 5 from jumping out. The male screw portion of the nut 11 is screwed together, and is pressed against the jump-out prevention nut 11 side of the flange portion 6 of the tubular member 5 by the axial extension force of the compression coil spring 7 to form a tubular shape. A single or a plurality of valve structure slip-out preventing claw-forming claw-shaped projections 12 are provided at the tip of the member 5, and a downward projecting squeezing portion provided in the inner circumferential portion of the bottom surface of the mountain cap 1 is provided. To be able to crush several places in whole or in part The nail-shaped projections 12 is an assembly device for aerosol valve formed by providing the distal end of the tubular member 305.

[0007]

[Effect] The present invention forms a downward projecting portion in the circumferential direction of the central portion of the bottom portion of the mountain cap by squeezing processing, and the whole or several places of the projecting processing resulting from this squeezing processing are made into the space portion of the lower supporting mold. By crushing with the crushing claw-shaped projections provided at the upper end of the inserted tubular member, that is, the tip, the valve structure is clinched in the valve structure housing part of the mountain cap and can be supported so as not to come out. is there. In particular, the mountain cap containing the valve structure is securely held between the upper support mold and the lower support mold, and the tip of the tubular member housed inside the lower support mold is advanced to advance the mountain cap. By crushing all or only a few of the protrusions formed on the cap by the squeezing process, it is possible to assemble an aerosol valve structure with extremely high accuracy. Further, this assembly method has the effect of enabling the assembly of the aerosol valve by the high speed continuous rotation clinching of the aerosol valve according to the present invention.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an assembly device for an aerosol valve according to the present invention, in which the left half shows a state before clinching work and the right half shows a state after clinching work. It is a figure.

FIG. 2 is a plan view showing a tip portion of a tubular member used in FIG.

3 is a vertical cross-sectional view of the tubular member of FIG.

FIG. 4 is a back view of the combined aerosol valve structure and mountain cap used in FIG.

[Explanation of symbols]

1 Mountain Cap 2 Upper Support Type 3 Lower Support Type 4 Space 5 Cylindrical Member 6 Flange 7 Compression Coil Spring 8 One Spring Seat 9 Other Spring Seat 10 Shoulder 11 Jump Out Prevention Nut 12 Claw -Shaped protrusion 13 Small through hole 14 Stem rubber 15 Valve stem 16 Valve housing 17 Valve stem support protrusion 18 Liquid supply pipe support short tubular protrusion

Claims (10)

[Claims] 1. A mountain cap and a valve structure, wherein a protrusion provided at a lower end of a valve structure housing portion of the mountain cap can support a valve housing of the valve structure. 1. The aerosol valve according to 1. 2. A position at the lower end of the large diameter part of the valve housing of the valve structure, at a position corresponding to the intersection of the valve structure housing part of the mountain cap and the bottom part of the mountain cap for preventing the valve housing from coming off. The aerosol valve according to claim 1, wherein the valve housing of the valve structure is supported by the deformed protrusion by deforming the provided annular protrusion. 3. A tubular portion comprising a mountain cap and a valve structure, the valve structure being formed by a stem with a stem rubber and a valve housing, and being a bottom portion of the mountain cap and a storage portion of the valve structure. The aerosol valve according to claim 1, wherein the valve housing can be supported by inwardly deforming a downward protruding portion provided at a lower end portion of the aerosol valve. 4. A valve structure is provided inside a lower supporting die of the mountain cap so that the mountain cap can be supported between two types of upper supporting die of the mountain cap and lower supporting die of the mountain cap. An assembling device for an aerosol valve, which is provided with a movable device for forming a retaining protrusion. 5. A mountain cap is formed by penetrating a space portion inside a lower support die, and a cylindrical member capable of reciprocating in the space portion is provided, and a flange portion is provided at an intermediate portion of the cylindrical member. , The flange portion of which is one spring seat of the compression coil spring, and the other spring seat of the compression coil spring is a guiding recess portion of the flange portion of the tubular member provided in the lower supporting die, and It is provided in the shoulder of the space for disposing the coil spring, and the male screw part of the jump-out preventing nut of the flange of the tubular member is screwed into the female screw hole on the opposite side of the shoulder,
An aerosol valve assembling apparatus configured to be pressed against a jump-out prevention nut side of a flange portion of the tubular member by an axially extending force of the compression coil spring. 6. The aerosol valve assembling apparatus according to claim 4, wherein a single or a plurality of valve structure retaining locking claw-shaped projections are provided at the tip of the tubular member. 7. A claw-shaped projection capable of crushing all or part of a downwardly projecting squeezing portion provided in a circumferential direction of an inner portion of a bottom portion of a mountain cap,
The aerosol valve assembling device according to claim 4, wherein the assembling device is provided at a tip portion of the tubular member. 8. A downwardly projecting squeezing portion for supporting a valve structure of a mountain cap held between an upper supporting die of a mountain cap and a lower supporting die of a mountain cap by moving a tubular member together with a stopper. The aerosol valve assembling apparatus according to claim 4, wherein the apparatus is crushed to support the valve housing. 9. A mountain cap is sandwiched between an upper supporting die of the mountain cap and a lower supporting die of the mountain cap, and then reciprocally inserted into a space inside the lower supporting die. And a valve housing supporting member formed on the bottom surface of the mountain cap by a crushing claw at the tip of the tubular member, the cylindrical member being raised against the elastic force of a spring built in the space. A method for assembling an aerosol valve, characterized in that all or a part of the downward annular protruding portion is crushed to support the valve housing and prevent the valve structure from coming out. 10. A stem with a rubber stem is fitted into a valve structure accommodating portion at the center of the mountain cap,
Next, the valve housing is fitted, and then the downward annular protruding portion provided at the lower end portion of the valve structure housing portion of the mountain cap in which the valve structure composed of the stem with stem rubber and the valve housing is built-in is attached to the cylindrical member. 10. The method for assembling an aerosol valve according to claim 9, wherein the assembly is crushed by a tip portion and abutted against a shoulder portion of the large diameter portion of the valve housing to support the shoulder portion.