JPH0353746Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an extraction nozzle used to extract a paste etc. from a container body. Regarding the extraction nozzle used.

[Conventional technology]

Conventionally, in this type of nozzle, the direction of the distal end discharge port has been fixed straight.

[Problems that this invention attempts to solve]

With conventional fixed nozzles, for example, when injecting sealant into a corner of a building wall or deep into a recess, the nozzle tip discharge port may not be able to approach the correct direction, making work extremely difficult. It was bad.

[Means for solving problems]

The extraction nozzle according to the present invention is equipped with a bellows section that can be bent and retracted and has peaks and valleys arranged alternately in the form of independent rings; A thin-walled curved portion that bulges outward is provided, and a thin-walled curved portion that bulges outward is provided at the bottom of the valley, so that the bellows portion can be placed in each of the curved, straight, and extended positions. The structure is such that it is maintained without being deformed by the nozzle internal pressure during extraction.

[Effect]

The bellows part can change its direction by swinging its head in any direction 360 degrees, and can also change its direction in a straight direction, depending on the shape of the area where sealant, injection agent, etc. are to be extracted. , the direction can be set to be the closest to the target for easy extraction.

Furthermore, the nozzle in a curved state, straight state, or extended state maintains its shape during extraction and is not deformed by internal pressure, so that the extraction operation can be performed reliably.

〔Example〕

The illustrated embodiment will be described in detail below.

In FIG. 6 or 7, a syringe 4 used for injecting a sealant into a sealing groove 3 in a recess 2 in a wall 1 of a building is illustrated.

This syringe 4 includes an outer container 5 equipped with a piston-type or fluid pressure pressing means (not shown), a container body 6 that is inserted into the container body 6 in a replaceable manner, and a container body 6 that is replaceably inserted into the outer container 5.
The extractor nozzle 7 is attached to the tip of the extractor nozzle 7.

Therefore, this extraction nozzle 7 is
As shown in Fig. 3 and Fig. 3, respectively, a bellows part W that can freely swing and expand and contract in a curved shape, a normal straight shape, and an elongated shape, and maintains the shape (shape-retaining bellows part that can swing freely) is located in the middle. It is prepared in the department.

To explain in more detail, this extraction nozzle 7
consists of a tapered part 8, a swingable shape-retaining bellows part W connected to the tapered part 8, and a mounting base end part 9. The base end portion 9 is composed of a cylindrical portion 9a and an outer flange portion 9b, and is press-fitted from the inside into a hole 10 in the tip wall surface of the container body 6 and fixed therein.

In addition, in the unused state of the sealing work, the leading edge 11 of the extraction nozzle 7 is closed, but when in use, the leading edge 11 is cut and opened with a knife or scissors according to the discharge amount. The syringe 4 shown in FIG. 6 or FIG. 7 applies pressure to the paste such as sealant to extract it.

As is clear from the shortened state shown in FIGS. 2 and 4 and the extended state shown in FIGS. 3 and 5, the bellows portion W has peaks 12... and troughs 13...
are arranged alternately as independent rings, and the mountain portions 1
At the top of 2, there is a thin curved part 1 that bulges inward.
4 is formed, and a thin curved part 14 which bulges outward is formed at the bottom of the valley part 13, and the shape shown in FIGS. can exhibit the property of holding and fixing.

Then, during normal injection of sealant, nozzle 7
The pressure acting inside the tube does not change the shape once it has been determined to be a predetermined shape. That is, after the nozzle 7 is shaped into a desired shape by the operator's hand, the nozzle 7 is given a characteristic that there is no risk of it being stretched or deformed due to a change in curvature due to nozzle internal pressure.

Next, FIG. 9 shows a modified example in which a female threaded portion 15 is formed on the inner circumferential surface of the mounting base end 9 of the nozzle 7, and the male threaded cylindrical portion 16 protruding from the front wall of the container body 6 is attached and detached. Screw on freely. Also, in Fig. 10, nozzle 7
A male threaded portion 17 is formed on the outer circumferential surface of the attachment base end portion 9, and a female threaded cylindrical portion 18 is projected and screwed into the container body 6.

Furthermore, as shown in FIG. 11, it is preferable that the mounting base end 9 of the nozzle 7 is integrated with the film-shaped container body 6 by welding 19. Note that the container body 6 is the eighth
Various materials can be used in Figures 1-11.

In addition, in FIGS. 12 to 16, the cross-sectional shape of the tapered part 8 of the nozzle 7 is shown as circular, square, or
This indicates that a triangle, rectangle, oval, etc. can be selected depending on the usage conditions.

For example, the nozzle 7 with a triangular cross section in FIG.
is suitable for the triangular sealing groove 3 shown in FIG. 17, and the nozzle 7 shown in FIGS. 15 and 13 is suitable for the rectangular sealing groove 3 shown in FIG. 18.

As described above, since the nozzle 7 according to the present invention has the shape-retaining bellows part W that can swing freely, it can be held by hand.
It can be fixed in any direction within 360 degrees and at any desired angle. Furthermore, Figures 3 and 7
By extending the nozzle as shown in the figure, it is possible to extract and fill even narrow spaces that are difficult to reach.
Furthermore, the nozzle having the bellows W can be mass-produced at low cost by blow molding, injection molding, etc. from plastic.

Further, it is possible to save the effort of selecting from a set of nozzles having different shapes and dimensions and converting the nozzles. Furthermore, by changing the nozzle, it is possible to reduce material loss caused by injection material such as a sealant remaining in the nozzle.

[Effect of idea]

The present invention has the following significant practical effects due to the above-described configuration.

The nozzle can be held in various positions such as curved, straight, and extended, and can be easily and quickly inserted into narrow places or deep recesses where it is difficult to inject liquids, pastes, etc. In addition, during extraction, the nozzle, which the operator has previously grasped and curved into the desired shape, stretches or changes its curvature due to the nozzle internal pressure and deforms. Therefore, liquids, pastes, etc. can be easily and reliably injected into desired areas.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a sectional front view showing the normal straight state, Fig. 3 is a sectional front view showing the extended state, and Figs.
The figure is an enlarged sectional view of the main part, Figs. 6 and 7 are explanatory diagrams of the usage state, Figs. 8 to 11 are enlarged sectional views of the main part showing modifications, and Figs. 12 to 16 are the tapered tip part FIGS. 17 and 18 are perspective views illustrating a modification example, and sectional views of essential parts for explaining the shape of the sealing groove. 7...Extraction nozzle, W...shape-retaining bellows part that can swing freely.

Claims (1)

[Claims for Utility Model Registration] A bellows part W that can be bent and retracted, in which peak parts 12 and valley parts 13 are arranged alternately as independent rings.
In the extraction nozzle equipped with this, a thin curved portion 14 that bulges inward is provided at the top of the peak 12, and a thin curved portion 14 that bulges outward is provided at the bottom of the trough 13. An extraction nozzle characterized in that a curved portion 14 is provided to maintain each posture of the bellows portion W in a curved state, a straight state, and an extended state without being deformed in response to the internal pressure of the nozzle during extraction. .