JPS6143037Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a joint for a raw material feed hose in a raw material filler for a foam molding machine, and is designed to allow the raw material feed hose to be easily and quickly attached and detached.

To attach and detach the raw material feed hose in a conventional raw material filler for a foam molding machine, insert the raw material feed hose into the joint of the tapered connection step member (commonly known as the bamboo-shaped part), tighten it with a hose band, and use it. When removing, the operation is the opposite of the above, but the space to attach and detach the raw material feed hoses is small and there are many hoses (12 to 20 for one mold), so the work takes a long time. The current situation was that it would take a long time.

Therefore, this invention has been devised to eliminate the above-mentioned drawbacks and inconveniences of the conventional methods and to make it possible to easily attach and detach the raw material feed hose.The structure consists of a nozzle main body and a nozzle support. A slit is formed on the base end side, which is one end of the nozzle main body, in a direction parallel to the nozzle direction.
A hole larger than the slit width is formed at the end of the slit, and a fitting hole into which the proximal end of the nozzle main body can be pushed is formed in the nozzle support, and the fitting hole has a hole that is deeper than the tip. It is characterized in that it is formed to have a large diameter, and the base end of the nozzle main body is formed to have a larger diameter than the distal end of the fitting hole.

Next, embodiments of this invention will be illustrated below with reference to the drawings.

Reference numeral 10 indicates a nozzle main body, and 20 indicates a nozzle support, and this invention is constructed by a combination of the two. Reference numeral 11 designates a base end serving as one end of the nozzle main body 10; 12 designates a tip serving as the other end of the nozzle main body 10; numeral 13 designates a slit formed in a direction parallel to the nozzle direction on the base end 11 side;
A hole 14 larger than the slit width is formed at the end of the slit. Reference numeral 15 denotes a tapered connecting step (commonly known as a bamboo-shaped portion) formed on the side of the tip 12, which allows the raw material feed hose 30 to be connected with a hose band (not shown) in the same manner as in the conventional art.

21 is a fitting hole formed in the nozzle support 20;
The base end 11 side of the nozzle main body 10 can be inserted. The fitting hole 21 is located at its tip 2.
The inner part 23 is formed to have a larger diameter than the inner part 2.

Furthermore, with respect to the fitting hole 21 , the base end 11 of the nozzle main body 10 is formed to have a larger diameter than the tip end 22 of the fitting hole 21 . In practice, the base end 11 is often formed to have the same diameter as the inner part 23 of the fitting hole 21, but is not limited to the same diameter.

In the figure, reference numeral 24 denotes a male threaded portion formed on the nozzle support 20, which serves as a connecting portion to the raw material filling device 40.

When using the joint of this invention having the above configuration, first, the nozzle support 20 is screwed into the raw material feeding connection port of the raw material filler 40. Next, the nozzle main body 10, in which the raw material feed hose 30 has been connected to the connection step 15 in advance, is connected to the nozzle support 20. In this case, the base end 11 of the nozzle main body 10 is connected to the nozzle support 20. Since the diameter is larger than the tip end 22 of the hole 21, when the nozzle main body 10 is pushed in, the base end 11 of the nozzle main body 10 is pushed inward, but due to the slit 13 formed on the base end 11 side. The outer diameter is narrowed inward and becomes approximately equal to the tip 22 of the fitting hole 21 of the nozzle support 20, and the nozzle main body 10 is
It is inserted into the.

Since the fitting hole 21 of the nozzle support 20 has a larger diameter at the inner part 23 than at the tip part 22,
The nozzle main body 10 fits into the fitting hole 21 of the nozzle support 20
When the nozzle main body 10 is pushed into the deep part 23 of the
The base end 11 of is restored to its original diameter by the spring action of the slit 13, and protrudes toward the inner surface of the inner part of the fitting hole of the nozzle support 20, making it difficult to remove. Moreover, since the diameter of the base end 11 of the nozzle main body 10 is larger than the diameter of the side end 22 of the fitting hole 21 of the nozzle support 20, the nozzle main body 10 is difficult to pull out from the nozzle support 20, and the nozzle main body 10 cannot be easily removed by applying force. If the nozzle body 10 is not pulled, the nozzle main body 10 will not come out. That is, in order to remove the nozzle main body 10 from the pushed-in state, hold the nozzle main body 10 and pull it so that the base end 11 of the nozzle main body 10 is compressed by a spring action, and the nozzle support 20 is fitted. The nozzle main body 10 can be removed from the hole 21.

Further, since a hole 14 larger than the slit width is formed at the end of the slit 13, the expansion of the slit can be prevented and the spring-like action of the slit can be assisted.

Therefore, according to this invention, the nozzle main body can be attached to and detached from the nozzle support as described above while the raw material feed hose remains attached to the nozzle main body side, so that the material feeding to the material filling device is facilitated. Since the hose connection work can be done easily and quickly, there is no need for the labor involved in conventional methods, and this can greatly contribute to improving work efficiency.

[Brief explanation of the drawing]

1 is an exploded half-sectional view, FIG. 2 is a connected half-sectional view, and FIG. 3 is a schematic diagram showing an example of a usage state. 10... Nozzle main body, 11... Base end, 12...
Tip, 13...slit, 14...hole, 15...
Tapered connection step, 20... nozzle support,
21... Fitting hole, 22... Tip of fitting hole, 23
...The inner part of the mating hole.

Claims (1)

[Claims for Utility Model Registration] 1. A nozzle main body and a nozzle support are combined, and a slit is formed in the proximal end side, which is one end, of the nozzle main body in a direction parallel to the nozzle direction, and the terminal end of the slit is formed in a direction parallel to the nozzle direction. A hole larger than the slit width is formed in the nozzle support, and a fitting hole into which the proximal end of the nozzle main body can be inserted is formed in the nozzle support, and the fitting hole has a larger diameter at the back than at the tip. A joint for a raw material feed hose in a raw material filler for a foam molding machine, wherein the base end of the nozzle main body is formed to have a larger diameter than the distal end of the fitting hole. 2. A joint for a raw material feed hose in a raw material filler for a foam molding machine according to claim 1 of the above-mentioned utility model registration claim, wherein a plurality of connection steps are formed on the other end of the nozzle main body.