JPH0353705Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to an injection drive device for an aerosol container that is set at the end of a valve structure for operating a horizontally tilted valve.

(Prior Art) A horizontally tilting valve is a valve that opens an injection pipe fitted to a stem and inclines it to a certain angle to inject the contents, and various structures of the valve itself are known. In order to operate the injection pipe, in addition to tilting the vertical part itself, it is also known that a handle of the operating part is connected to it, and in order to return to the previous state, it is formed through a resilient connection part to a fixed cap. has been done.
Since the center hole of such an injection tube is always open, the foam contents may remain in the center hole after the valve is "closed," and may also be pushed out little by little, causing drips from the outer end, or even leaking from the outside. This has the disadvantage of contaminating the deposits on the edges.

(Problems to be solved by this invention) This invention is equipped with a tip stop valve that also opens when the injection drive device that operates the horizontally tilted valve opens the valve, thereby preventing leakage.
This provides a device with good foam removal.

(Means to Solve the Problems) In order to achieve the above object, this invention provides an outward opening flap-shaped part at the upper end of the injection inner pipe which can be fitted into the stem of a horizontally tilted valve, and which is fitted into the end of the valve structure. An outer injection pipe is provided integrally with the fixed cap via a band-shaped elastic piece, and the inner injection pipe is inserted into the center hole of the outer injection pipe, and the flap-shaped portion is brought into close contact with the valve seat of the flap-shaped portion. A tip stop valve is provided with a valve stem provided in the center hole, and when the outer injection pipe is tilted, the valve stem is eccentric from the valve seat that is in close contact with it, and the valve is opened.

Below, the drawings showing the embodiments will be explained.
FIG. 1 is a longitudinal sectional view of the injection drive device, showing the non-operating state, and B shows an aerosol container filled with foam and other contents, which is set on the shoulder side of the upper end of the container B. Device A includes an outer injection pipe 2 that is integral with a fixed cylinder 1 and an inner injection pipe 4 that can be fitted onto a stem 3.
It is assembled and constructed from.

The fixing tube 1 has an inner diameter portion 1a having an opening on the lower surface so that the winding portion 5 of the aerosol container B is fitted, and a locking portion 1b prevents the tube from freely detaching from the container. Further, a window hole 6 is opened at the upper end of the fixed cylinder 1, leaving the outer peripheral edge 1c.

The outer injection pipe 2 is provided with an enlarged cylindrical part 2a at the lower part, and a central hole 8 penetrating the protruding part 2 from the internal space 7 of the enlarged cylindrical part 2a is provided with a valve stem 9 centered on the discharge port 8a side at the upper end. Several segmented passages 10 are provided on the outside of the valve stem 9. The segmented passage 10... is made of the same number of segmented pieces 11..., and the segmented pieces 11... are made of the valve stem 9.
It is integrally molded into the outer injection tube 2 so as to radially cross the center opening 8 from the center. In addition, these valve stem 9 and segment piece 11
may be provided as a separate component from the outer tube 2 and fitted and fixed to the discharge port 8a.

The fixed tube 1 and the outer injection tube 2 are several band-shaped flexible elastic pieces that radially cross the window hole 6 portion between the outer peripheral edge 1c of the fixed tube 1 and the outer surface of the enlarged tube portion 2a of the outer injection tube 2. 12 and are integrally molded, and an outer injection pipe 2 is swingably provided with respect to the fixed cylinder 1 via the elastic piece 12. The inner injection pipe 4 has a large diameter part 4b downward from the outer shoulder part 4a, a small diameter part 4c upward, and a flap-shaped part 13 expanding outward at the upper end. A valve seat 16 is provided on the opening surface. The inner injection pipe 4 is configured such that the stem 3 can be fitted and connected to the lower end of the center hole 15, and the large diameter portion 4b is accommodated in the internal space 7 of the enlarged cylindrical portion 2a of the outer injection pipe 2. 4a against the inner step 7a of the internal cavity 7, the flap-like part 13 is brought into close contact with the center hole 8 of the protruding part 2b, and the small diameter part 4c is inserted.
The lower end of the valve stem 9 is brought into contact with the tip stop 1.
form 7. Inside the outer injection pipe 2, the inner injection pipe 4 is installed with an annular gap 18, 18a formed on the outer periphery, and the outer injection pipe 2, which is swingable, can be horizontally moved or tilted relative to the fixed inner injection pipe 4. During this operation, the center hole 1 of the injection inner pipe 4
5 and the valve stem 9 to form an eccentric state.

(Operation/Effect) The present invention has a movable injection outer tube 2 formed through a flexible elastic piece 12 inside a fixed cylinder 1 that is fitted into an aerosol container, and is connected to a stem 3 for injection. Rump-shaped part 1 at the upper end of the inner tube 4
3 is provided and loosely fits into the inside of the injection outer pipe 2, except for the flap-shaped part 13 that is in close contact with it, and the flap-shaped part 1
By providing the valve rod 9 inside the outer pipe 2 on the valve seat 16 of 3, the outer injection pipe 2 is moved from the injection inner pipe as shown in the vertical cross-sectional view from the non-operating state in Fig. 1 to the tilting state in Fig. 3. 4, and further forcibly tilted together with the injection inner pipe 4, the stem 3 is tilted and the sideways valve below the stem is opened, and the flap-like portion 13
By deforming the valve stem 9 and valve seat 16, the tip stop 17 can be opened to release the contents. When the tilting force is released, the inner injection pipe 4 and the outer injection pipe 2 are returned to their old states by the stem 3 and the flexible elastic piece 12, and the valve seat 16 and the valve rod 9 are positioned coaxially, and the tip stop 17 is moved. Form “closed”.

By providing the tip stop 17 in the drive device of the sideways valve, the tip stop 17 allows the discharge port 8a to drain the bubbles after discharging the contents, preventing accidental leakage, resulting in a product that is easy to use. In addition, since the tip stop has an eccentric structure, it operates reliably when tilting, and has practical value because it can be used smoothly.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view when the device is at rest, FIG. 2 is a cross-sectional view taken along the - line, and FIG. 3 is a vertical cross-sectional view when the device is tilted. A...Device, B...Aerosol container, 1...Fixed cylinder, 2...Outer injection tube, 3...Stem, 4...Inner injection tube, 9...Valve rod, 12...Flexible elastic piece, 1
3...Rump-like part, 16...Valve seat, 17...Tip stop.

Claims (1)

[Scope of utility model registration request] An injection outer tube 2, which can be tilted from the outside, is inserted into the upper window hole 6 of the fixed tube 1, which can be fitted onto the upper end side of the aerosol container B, through several flexible elastic pieces 12 that connect the outer tube and the fixed tube 1. A valve stem 9 is provided in the center on the discharge port 8a side of the outer tube 2, and an inner injection tube 4, which can be fixed to a stem 3 leading to a horizontally tilted valve below, is loosely formed inside the outer injection tube 2. At the same time, the flap-shaped portion 13 at the upper end of the inner tube 4 is brought into close contact with the discharge port 8a side of the outer tube 2 in a deformable manner, and the valve seat 16 on the upper surface of the flap-shaped portion 13 and the valve stem 9 engage the tip stop 17. An injection drive device for an aerosol container, which is configured to be able to open eccentrically when an outer tube 2 is tilted.