JPH03558B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seal washer with a novel structure that is attached to an eye joint of a tubular body joint for connecting a hose, pipe, etc. to a fluid passage hole of a device main body.

Here, as a tubular body joint, a nipple part 3 and a sleeve part 4 for fastening a hose 2 are provided on one side of a flange part 1, as shown in FIGS. 1 and 2,
The description will be given by taking as an example a hose joint 13 having an eye joint portion 5 on the other side, but the present invention is not limited to this.

In assembling this type of hose joint 13, two annular seal washers 9, 9 are interposed on the upper and lower surfaces of the conventional eye joint part 5, and the bolt 11 with a passage is inserted into the equipment body 8 through the insertion hole 6 of the eye joint part. By screwing the hose joint 13 into the fluid passage hole 12 of the device body,
I had it connected to.

However, in such a hose joint 13, since a total of two seal washers 9, 9 are interposed on the upper and lower surfaces of the eye joint portion 5, the annular seal washers 9, 9 may fall off from a predetermined position during assembly. There was a problem that it took time to assemble.

In addition, in this type of hose joint 13, an extension part 5a is usually formed in the eye joint part 5, a pin 7 is formed in the extension part 5a, and the pin 7 is connected to a positioning hole 10 provided in the device main body 8. The hose joint 13 is engaged with the flow passage bolt 11 to prevent rotation of the hose joint 13 due to screwing into the fluid passage hole 12, and to maintain a constant connection direction.

Therefore, in such a hose joint 13,
It is necessary to form an extension part 5a in the eye joint part 5 and drive a separate pin 7 into the extension part 5a, which not only increases the manufacturing effort but also increases the cost.

This invention solves the above-mentioned problems, allows the assembly work of a tubular body joint to be easily and hassle-free, and is a novel method that eliminates the need to extend the eye joint part of the tubular body joint and attach a pin. The purpose of the present invention is to provide a seal washer for a structural eye joint.

The gist of this invention is that when the tubular body joint is connected to the fluid passage hole of the device main body through the eye joint part, the eye joint part is attached to the upper and lower surfaces of the eye joint part so as to sandwich the eye joint part. This is a seal washer that is formed, and when installed on the upper and lower surfaces of the eye joint part, a pair of upper and lower seal seats having opposing insertion holes, a connecting part that connects the pair of seal seats, and a connecting direction of the tubular body joint are regulated. A seal washer for an eye joint is formed of a positioning means provided on a device body and a locking portion that engages.

Embodiments of the present invention will be described below based on illustrated examples.

3 and 4 are the first embodiment of the present invention,
A developed view of the seal washer showing the second embodiment, FIG.
FIG. 8 is a perspective view of the seal washer of the first embodiment and the second embodiment, respectively, and FIGS. 6 and 9 are perspective views of the seal washer of the first embodiment and the second embodiment, respectively.
A perspective view of a hose joint in which the seal washers of the first and second embodiments are assembled, and FIGS. 7 and 10 are cross-sectional views of how the hose joints using the seal washers of the first and second embodiments are used, respectively. It is.

As shown in FIG. 3, the seal washer 19 of the first embodiment is formed by pressing a single plate material 18 made of a soft metal such as copper or aluminum.

This plate material 18 has a seal seat 18a forming a lower seal seat on the left side in the longitudinal direction in the figure, and a seal seat 18b forming an upper seal seat on the right side of the connecting portion 1.
8c.

A claw portion 19c is provided at the end of the seal seat 18a to be engaged with a hole 40 as a positioning means of the device body 38.
is formed. Further, the recess 19a punched out leaving the connecting portion 18c serves as a recess that engages with the neck portion 35b of the eye joint portion 35.

Insertion holes 19b, 19b are formed in the seal seats 18a and 18b, respectively, which are disposed on the upper and lower surfaces of the eye joint portion 35, and into which the bolts 41 with passages are inserted.

The positions of the insertion holes 19b and 19b are
8c is made to have a length approximately equal to the thickness of the eye joint part 35, and when both sides of the plate material 18 are bent into a U-shaped cross section, they face each other, and the claw part 19
c is bent outward at right angles, and the claw portion 19c is engaged with the neck portion 35b of the eye joint portion.
When c is engaged with the positioning hole 40 of the device body,
This is a location that can match the bolt insertion hole 36 of the eye joint.

Then, if the plate material 18 is bent by press working at the location indicated by the broken line shown in FIG. 3, a pair of insertion holes 19b, 19b which are vertically opposed to each other via the connecting portion 18c are formed, as shown in FIG. Seal seat 18
a, 18b, a connecting portion 18c having a recess 19a on the side surface, and a connecting portion 18c at the seal seat 18a.
a claw portion 19c located on the opposite side and extending downward;
Seal washers 19 each having the following are formed.

Next, how this seal washer 19 is used will be explained.

First, the seal washers 18a, 18 of the seal washer 19
b is arranged so as to sandwich the upper and lower surfaces of the eye joint part 35, and the recess 19a of the connecting part 18c is engaged with the neck part 35b of the eye joint part (see FIG. 6), and the positioning hole 40 provided in the main body of the device is inserted. The claw portion 19c is engaged.

Then, the insertion holes 19 of the seal seats 18a, 18b
b, 19b, bolt insertion hole 3 of hose joint 43
6, and the fluid passage hole 42 of the device body, and screw in the bolt 41 with a flow passage from above (see FIG. 7).

At this time, the seal washer 19 is integral, and the seal seats 18a and 18b are connected by the connecting portion 18c, and the seal seats 18a and 18b are in contact with each other so as to sandwich the upper and lower surfaces of the eye joint portion 35. When installing, there is no problem such as the seal washer falling off, which occurred in the past, and the assembly work can be done easily and without any hassle.In addition, when screwing in the bolt 41 with a flow passage, the positioning hole 4 of the device body, which is the positioning means, is removed.
0 and the claw portion 19c, rotation of the hose joint 43 can be reliably prevented in the same manner as in the case of a conventional pin, and the connection direction of the hose joint 43 can be kept constant. Further, since the recess 19a is engaged with the neck 35b, positioning and rotation prevention can be performed more reliably.

As shown in FIG. 4, the seal washer 29 of the second embodiment is made by bending a single plate 28 made of the same material as that of the first embodiment by press working at the location indicated by the broken line in FIG. Let it form.

This plate material 28 has connecting portions 2 on both sides in the longitudinal direction.
Seal seats 28a and 28b are formed through the seal seats 8c, and insertion holes 29b and 29b are formed in each of the seal seats 28a and 28b, which are disposed on the upper and lower surfaces of the eye joint portion 35 and into which the passage bolt 41 is inserted. There is.

In addition, recesses 29 are formed at both ends to form circular holes after processing and are engaged with the neck portion 35b of the eye joint portion.
a, 29a is formed, surrounded by an inverted U-shaped hole on the connecting portion 28c side of the seal seat 28a, and is connected to the device main body 38.
A claw portion 29c is formed to be engaged with the positioning hole 40 of.

Insertion holes 29b of the seal seats 28a, 28b,
The position of 29b is such that the length of the connecting portion 28c is approximately equal to the thickness of the eye joint portion 35, and when both sides of the plate material 28 are bent into a U-shaped cross section, leaving the claw portions 29c, they face each other. The tips are bent inward at right angles to form recesses 29a,
29a is made into a circular hole shape, and the recessed portions 29a, 29a are engaged with the neck portion 35b of the eye joint portion to form the claw portion 2.
This is a location that can match the bolt insertion hole 36 of the eye joint portion when the 9c is engaged with the positioning hole 40 of the main body of the device.

Then, when the plate material 28 is bent by press working at the location indicated by the broken line shown in FIG. 4, a pair of seal seats 28a, 28b having vertically opposing insertion holes 29b, 29b are formed, as shown in FIG. Concave portions 29a, 29a located on one side and shaped like a circular hole
and a claw portion 29c extending downward and located on the other side surface forming the connecting portion 28c, the seal washer 29 is formed.

When this seal washer 29 is attached to the hose joint 43, the recesses 29a, 29a are slightly separated from each other,
The seal washer 29 is disposed to sandwich the upper and lower surfaces of the eye joint 35, and the recesses 29a, 29a are brought close again to engage the neck 35b of the eye joint for use (see FIG. 9).

After that, the claw portion 29 is inserted into the positioning hole 40 of the device body.
c, and insert the seal washer insertion holes 29b, 29.
b. If the bolt insertion hole 36 of the hose joint and the fluid passage hole 42 of the device body are aligned and the bolt 41 with a flow path is screwed in (see FIG. 10), the same effect as in the first embodiment can be obtained.

The seal washer 29 of the second embodiment reliably grips the neck portion 35b with the recesses 29a, 29a after the hose joint 43 is attached.
Compared to the embodiment, the seal washer can be more securely attached during assembly work.

In addition, the conventional hose joint 1 shown in FIGS. 1 and 2 is integrally provided with a pin 7 that protrudes only in one direction.
3 is assembled into the fluid passage hole 12 of the device body, it is necessary to twist the hose joint 13 by up to 180 degrees depending on the position and orientation of the device body 8.
As in the first and second embodiments, the claw portion 19 is attached to the seal washer.
29c, the hose joint 43
This can be solved by twisting the hose joint 43 by up to 90 degrees before attaching the seal washers 19, 29 to the hose 32, which has the effect of reducing the impact on the durability of the hose 32 or the allowable occupied space.

Furthermore, although the claws serving as the locking parts of the positioning means are provided protruding from one side in the above embodiments, they may be formed on both sides as long as they fit with the positioning means of the main body of the device.

In addition, the seal washers 19 and 29 of the first and second embodiments
has recesses 19 on both sides of the insertion holes 19b and 29b.
a, 29a and claw portions 19c, 29c are shown, but of course, if the positioning hole 40 is provided in the connection direction of the hose joint 43, for example, as shown in FIG. This can be achieved by forming the seal washer claw portion 29c of the second embodiment by extending the lower recessed portion 29a.

Furthermore, as in the first and second embodiments, the connecting portion 18
c, 28c are seal seats 18a, which have insertion holes 19b, 29b in the longitudinal direction of the seal washers 19, 29;
In addition to the structure in which 18b, 28a, and 28b are connected, as shown in FIGS. 12 and 13, the upper and lower surfaces having insertion holes in the transverse direction may be connected, and the structure may be such that the upper and lower surfaces have insertion holes that engage with the neck of the eye joint. The recess also
The same effect can be achieved no matter where the insertion hole is formed from either the upper or lower surface.

Furthermore, as a means for achieving the above object, the present invention is not limited to the embodiments described above, and the shape of the pair of seal seats, the connecting part, and the locking part can be made from soft metal in various shapes. It is possible to perform punching press processing. Furthermore, in order to achieve the above objectives and further reduce the weight, the shapes of the pair of seal seats, connecting parts, and locking parts were press punched, leaving only the skeleton parts to have the minimum function. It can also be processed.

Since the seal washer of the present invention has the above-described structure and function, the problem of the seal washer falling off during assembly is eliminated, and the bolt can be tightened without extending the eye joint part of the tubular body joint and attaching the pin. At the same time, rotation of the hose joint can be reliably prevented, and the assembly work of the tubular body joint can be easily and easily performed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a conventional hose joint, FIG. 2 is a cross-sectional view of how the hose joint shown in FIG. 1 is used, and FIGS. Developed view of seal washer showing an example, No. 5
8 are perspective views of the seal washers of the first and second embodiments, respectively, and FIGS. 6 and 9 are perspective views of the hose joints assembled with the seal washers of the first and second embodiments, respectively. The perspective view, FIG. 7, and FIG.
2 and 13 are perspective views of seal washers showing other embodiments, respectively. 5, 35... Eye joint part, 8, 38...
Equipment body, 9... Seal washer, 10, 40... Positioning hole, 12, 42... Fluid passage hole, 13, 4
3... (tubular body coupling) hose coupling, 19, 29...
... Seal washer, 19a, 29a ... recess, 19
b, 29b...Insertion hole, 19c, 29c...Claw portion.

Claims (1)

[Claims] 1 When the tubular body joint is connected to the fluid passage hole of the device main body through the eye joint part of the tubular body joint, the eye joint part is mounted on the upper and lower surfaces of the eye joint part so as to sandwich the eye joint part, and is pressed from a single metal plate. The seal washer is formed by processing, and includes a pair of upper and lower seal seats having opposing insertion holes when attached to the upper and lower surfaces of the eye joint part, a connecting portion connecting the pair of seal seats, and the tubular body joint. A seal washer for an eye joint, comprising a locking portion that engages with a positioning means provided on the device body that regulates the connection direction.