JPS6225592Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a hose fixture.

Conventionally, hose fixing devices shown in FIGS. 1 to 3 have been used as fixing devices for a hose and a tubular body such as a pipe.

In the one shown in FIG. 1, by inserting the hose 2 into the clamp 1, the clamp 1 can be
It bites into the tube body 3 such as a pipe, and the hose 2
It is configured so that it does not come off from the tube body 3.

However, this conventional example can only be used when the tube body 3 protrudes in a short length from the outer surface of the attachment part 4, and the outer surface of the attachment part 4 is connected to the clamp 1. It must be adapted to function as a stopper surface. For this reason, not only the location where it is used is specified, but also the structure of this type of clamp 1 has the problem that the clamp 1 itself protrudes outside the hose 2 and becomes larger.

In addition, in the case shown in FIG. 2, a bulge 3a is provided at the tip of a pipe body 3 such as a nipple, and after inserting this tip into the hose 2, the outer circumference of the hose 2 between the open end of the hose 2 and the bulge 3a is inserted. By tightening the clamp 5, the clamp 5 and the hose 2 are prevented from climbing over the bulge 3a and coming off. However, this type of clamp 5 has fixing devices 7, 7 attached to both ends of two wire rods 6, 6, respectively, as shown in the figure.
With the fixing devices 7, 7 butted against each other, tightening screws 8 are tightened to bring the fixing devices 7, 7 closer together, thereby tightening the outer periphery of the hose 2 with the wire rods 6, 6. It is configured. In this way, since the fixing devices 7, 7 are attached to the outside of the hose 2, they not only get in the way of other members, but also take time and effort to tighten the screws 8, and there is a bulge 3a at the tip of the tube 3. This has had various disadvantages in that it requires a manufacturing process.

In addition, in the case shown in FIG. 3, a bulge 3a is formed at the tip of a pipe body 3 such as a nipple, as in FIG. By tightening the hose 2 and the clamp 9, the hose 2 and the clamp 9 are prevented from climbing over the bulge 3a and coming off.

However, the clamp 9 shown in FIG.
As shown in the figure, the spring material is formed into a band shape, and the outer periphery of the hose 2 is tightened by the spring force acting in the direction of diameter reduction. Therefore, when attaching this clamp 9 to the hose 2, the hose 2 must be inserted little by little while loosening the clamp 9, which is inconvenient and takes time. For this reason, it is conceivable to weaken the spring force of the clamp 9 in order to make the attachment work easier, but this has the disadvantage that the tightening force of the clamp 9 will be weakened.

The present invention was developed in view of these circumstances, and does not require a stopper surface for contacting the fixing device when connecting and fixing the hose and the pipe body, so there are no restrictions on where it can be used. At the same time, it is advantageous in terms of space saving because it does not take up a lot of space to install the fixture, and it is not necessary to process bulges on the pipe body or tighten screws when connecting and fixing, reducing manufacturing and assembly man-hours. Moreover, it is an object of the present invention to provide a hose fixing device which has good workability when fixing, since the fixing device does not need to be connected by loosening its spring force, but can simply be bent back and returned to its original position.

In order to achieve the above object, the hose fixing device according to the present invention has a main body of the hose fixing device made of spring steel in the form of a plate, and a tube insertion hole is bored in the center through which the tube inserted into the tip of the hose is inserted. In addition, a first claw is provided that projects radially inward of the tube body insertion hole and presses the outer surface of the tube body, and a second claw that bites into the outer surface of the distal end of the hose into which the tube body is inserted is provided. A claw is provided to protrude radially inward from the outer peripheral side of the fixture main body.

With this configuration, the hose fixture is bent against the repulsive force, and in this state, the tube tip is inserted into the tube insertion hole, and then the tube tip is inserted into the hose. , by simply releasing the force applied to the hose fixture, the first and second claws press the pipe body with the repulsive force of the hose fixture itself;
It will bite into the hose, and the tube body will be fixed to the hose.

The present invention will be explained in detail below with reference to the drawings. 6 to 9 show the first embodiment of the present invention, FIG. 6 is a front view of the hose fixture, FIG. 7 is a sectional view taken along line A-A in FIG. 6, and FIG. FIG. 9 is a vertical cross-sectional view showing a state in which the hose fixing device shown in the figure is bent back and a tube body is inserted therein, and FIG. 9 is a vertical cross-sectional view showing a state in which the hose and the tube body are connected and fixed.

In these figures, reference numeral 11 indicates a hose fixture, and this hose fixture 11 includes a hose fixture main body 12 and a pair of first claws 13 for fixing the tube body formed on the hose fixture main body 12. ,13
and a pair of second claws 14, 14 for fixing the hose.

The hose fixture main body 12 is formed into a disk shape with approximately the same diameter as the outer diameter of the hose 15, and has a tube body insertion hole 17 for a nipple, pipe, etc. 16 inserted into the hose 15 in the center thereof. , is bored to have a slightly larger diameter than the outer diameter of the tube body 16. Further, this hose fixture 11 is made of spring steel, and is given a repulsive force against bending force.

At opposing positions on the inner periphery of the tube body insertion hole 17, a pair of first claws 13 are provided so as to face each other.
13 is formed. The first claw 1 of this pair
As shown in FIG.
2, and its tip portions 13b, 13b protrude inward in the radial direction of the tube body insertion hole 17 at an acute angle in cross section. The tip portions 13b, 13b are formed to have an appropriate width in a straight line in the circumferential direction of the hole 17.

Further, the outer peripheral part of the hose fixture 11,
A pair of second claws 14, 14 are formed behind each of the first claws 13, 13 tip portions 13b, 13b. The tips 14 of the second claws 14, 14
a, 14a is the axis S of the first fixture main body 12;
They face each other so as to be oriented slightly upward in the direction, and protrude in an acute-angled cross section, and are formed in an appropriate width straight line in the circumferential direction of the hose fixture main body 12.

Since the second claws 14, 14 are used with the hose fixing device main body 12 curved, the second claws 14, 14 are used as shown in the figure.
It is preferable to provide two opposing positions.

Using the hose stopper 11 configured as described above, the hose 15 is attached to a pipe body 1 such as a nipple or a pipe.
6, first, as shown in FIG. 8, the hose fixture main body 12 is bent back in a direction that increases the distance between the first claws 13, 13 tips 13b, 13b. After that, the first claws 13, 13
The tip of the tube 16, such as a nipple or pipe, is inserted to an appropriate length into the tube insertion hole 17 while following the tapered opposing side surfaces 13a, 13a. after that,
As shown in the figure, the tip of the pipe body 16 such as a nipple is inserted into the hose 15 while the hose fixture main body 12 is kept warped, while the force that is bending the hose fixture main body 12 is released. . Then, as shown in FIG. 9, the hose fixture main body 12 returns to a flat plate shape due to its own repulsive force, and at the same time the first claws 13, 13 strongly press the outer periphery of the tubular body 16. Further, the tips 14a, 14a of the second claws 14, 14 bite into the outer periphery of the hose 15. Thereby, the hose 15 and the tube body 16 are firmly connected and fixed via the hose fixture 11.

FIG. 10 shows a second embodiment in which the first claws 13, 13 and the second claws 14, 14 are modified, and the first claws 13, 13 in this embodiment have their tip portions 13b, 13b are inserted into the tube insertion hole 17 along the outer arcuate surface of the tube 16.
It is formed in an arc shape in the circumferential direction of 7. Further, the second claws 14, 14 are formed in an arc shape in the circumferential direction of the hose fixture main body 12 so that the tip portions 14a, 14a thereof follow the outer arc surface of the hose 15. By configuring the first and second claws 13, 13, 14, 14 in this way, there is a gap between the tips 13b, 13b of the first claws 13, 13 and the outer arc surface of the tube body 16. The tubular body 16 can be fixed without any wobbling without creating any gaps, and no gaps are created between the tips 14a, 14a of the second claws 14, 14 and the outer arc surface of the hose 15. Therefore, the hose 15 can be fixed stably without wobbling.

FIG. 11 shows a third embodiment in which the first claws 13, 13 are modified, and the first claws 13, 13 of this embodiment cover the entire inner circumference of the tube insertion hole 17. It is formed in a circular pattern. In this case, cut lines 13 are formed at appropriate intervals in the circumferential direction of this first claw 13.
If the hose fixing device main body 12 is formed, the hose fixing device main body 12 can be easily bent back.

Furthermore, if the first pawl 13, which is formed in a circumferential manner as described above, is formed into a saw blade shape, the outer surface of the tube body 16 can be strongly tightened.

FIG. 12 shows a fourth embodiment in which the hose fixture main body 12 is modified. The hose fixing device main body 12 in the above-mentioned first embodiment returns to a flat plate shape when the hose 15 and the pipe body 16 are connected and fixed as shown in FIG. The tool body 12 passes through such a flat plate state, returns to the opposite side, and connects the hose 15 and the pipe body 16 in the restored state.
It is designed to be connected and fixed.

Note that the first and second claws 13, 1 in the fourth embodiment
It goes without saying that a plurality of holes 3, 14, 14 may be formed intermittently in the circumferential direction of the tube insertion hole 17 and in the outer circumferential direction of the hose fixture body 12.

As explained above, according to the present invention, there is no need for a stopper surface for contacting the fixture when connecting and fixing the hose and the pipe body, and therefore there is no restriction on the place of use, and the fixture It is advantageous in terms of space saving because it does not take up a lot of installation space, and there is no need to process bulges on the pipe body or tighten screws when connecting and fixing, reducing manufacturing and assembly man-hours. It has the effect that the workability when fixing is good because it is only necessary to simply bend it back and then return it without loosening the spring force and connecting it.

[Brief explanation of the drawing]

Figures 1 to 5 show a conventional hose fixture, with Figure 1 being a side view, Figure 2 being a longitudinal sectional view, Figure 3 being a side view, and Figures 4 and 5 being perspective views. , 6th
9 to 9 show the first embodiment of the hose fixing device of the present invention, FIG. 6 is a front view, and FIG.
A cross-sectional view taken along the line A-A of the hose fixture shown in the figure, Figure 8 is a longitudinal cross-sectional view of the hose fixture shown in Figure 7 turned back and a tube inserted into it, and Figure 9 is a hose and tube body. 10 to 12 show other embodiments of the present invention.
FIG. 10 is a front view showing the second embodiment, FIG. 11 is a front view showing the third embodiment, and FIG. 12 is a longitudinal sectional view showing the fourth embodiment. DESCRIPTION OF SYMBOLS 11... Hose fixture, 12... Hose fixture main body, 13... First claw, 14... Second claw, 1
5...Hose, 16...Pipe body.

Claims (1)

[Scope of utility model registration request] The main body of the hose fixing device is formed into a plate shape from spring steel, and a tube body insertion hole is bored in the center of the body through which the tube body to be inserted into the hose tip is inserted. A first claw is provided that protrudes to press the outer surface of the tube body, and a second claw that bites into the outer surface of the distal end of the hose into which the tube body is inserted is provided in a radial direction from the outer peripheral side of the fixture main body. A hose fixture characterized by protruding inward.