JPH018793Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a hose attachment device for fixing a hose to a container.

(Prior Art) In order to attach a hose to a container such as a fuel filter for an automobile internal combustion engine, the hose is fitted into a pipe erected on the wall of the container, and then tightened with a cylindrical band-shaped clip.

(Problems to be Solved by the Invention) When the above-described hose attachment device receives a force in the lateral direction, the strongest bending moment is applied to the base of the pipe, causing the pipe to fall and eventually break.
In FIG. 3, the hose 22 is fitted into the pipe 21,
When a lateral force F is applied to the hose attachment device that has tightened the hose with the cylindrical band-like clip 24, the base 23 cannot withstand the bending moment, and the pipe 21, which was standing vertically, bends as shown in the figure. It falls against the wall 20 of the container and may break. In this case, the clip 24 has no reinforcing effect even if it is attached near the base of the pipe.

In order to prevent such collapse and breakage, the base 23 must be made thicker, and the passage area on the inner diameter side of the pipe is narrowed. Also, if you try to increase the wall thickness toward the outside diameter, the base of the pipe will become thicker, making it impossible to fit the hose all the way to the base, or you will have to prepare a special hose with a larger diameter at one end. There is.

(Means for Solving the Problems) The hose attachment device of this invention consists of a cylindrical part and a leg part extending in an annular radial direction from the lower end of the clip body, which has a slit cut out from the cylindrical part to the leg part, and A hose clip consisting of a tightening band that surrounds and tightens the container and a screw is used to tighten the hose fitted to a pipe vertically erected on the wall of the container, and the legs are brought into contact with the wall.

(Function) When this hose attachment device receives a lateral force, the legs of the hose clip are in contact with the wall surface, so the bending moment applied to the base of the pipe is shared and borne. Since the pipe is supported by a portion with a larger diameter than the pipe as it spreads, it has a significant effect in terms of resistance to the collapse of the pipe.

(Example) An example is shown in FIG. One end of a hose 22 is fitted into a pipe 21 erected on a wall 20 of a fuel filter container and tightened with a hose clip 11.

FIG. 2 shows the hose clip 11. The cylindrical part 13 and the leg part 14 form the cylindrical part 13 and the leg part 1.
A clip body 15 is formed by cutting a slit 12 across the length of the clip. A band 17C surrounds the cylindrical portion 13 with a width comparable to the width of the slit 12 remaining, and a pair of clamping plates 1 extend radially from both ends of the band 17C and face each other to form a vertical plane.
7a and 17b form a tightening band 17.
Holes 18a and 18b are formed in the tightening plates 17a and 17b, and a nut is attached to one of the holes 18a and 18b.
It is threadedly engaged with a tightening screw 19 passing through a and 18b.
A tightening band 17 is attached to the outer periphery of the cylindrical portion 13. FIG. 2 16 shows notches for increasing tightening elasticity. In the hose attachment device shown in FIG.
is fitted into the pipe 21, and the hose 22 is fitted into the pipe 21 so that the leg portion 14 is brought into contact with the wall surface 20. By tightening the tightening screw 19, the tightening plate 17a,
The gap 17b is narrowed and the cylindrical portion 13 is tightened to the hose 22. When a lateral force F is applied to the pipe 21, the legs 14 serve as supports and share the bending moment of the base 23 of the pipe to generate a resistance force.

(Effects of the invention) The hose attachment device of this invention prevents the pipe from collapsing or breaking without causing any inconvenience caused by increasing the wall thickness of the pipe, and makes the hose installation sturdy with a simple method. Can be done.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of this invention, FIG. 2 is a diagram showing a hose clip, and FIG. 3 is a diagram showing a collapsed state of a conventional hose attachment device. 11...Hose clip, 12...Slit,
13... Cylindrical part, 14... Leg part, 15... Clip body, 17... Tightening band, 17a, 17b...
...Tightening plate, 19...Tightening screw, 20...Wall surface, 2
1...Pipe, 22...Hose.

Claims (1)

[Scope of utility model registration request] In a hose attachment device in which one end of the hose is fitted into a pipe vertically erected on the wall of a container and tightened with a hose clip, the hose clip includes a cylindrical portion and legs extending radially from the lower end of the hose clip. A clip main body having a slit extending from the upper end to the outer peripheral end of the leg via the lower end of the cylinder, and a pair of vertical clamping plates protruding in the radial direction from a band surrounding the cylindrical part and facing each other. A hose attachment device comprising a band and a tightening screw passing through a tightening plate, the leg portion being brought into contact with the wall surface.