JPH0694173A - Hose joint - Google Patents

Abstract

PURPOSE:To obtain a fixing method without deformation of a hose by holding the flange of a collar by the end of a nut screwed onto a joint body, overlapping a part of the collar on the hose mounting part by the screwing of the nut, and fixing the hose pressingly to the hose mounting part. CONSTITUTION:A joint body 2 is formed integrally with a connecting part 2a, screw part 2b, and hose connecting part 2c, tapered surfaces 2d and 2e inclined in the direction of hose insertion are provided on the outer periphery of the hose connecting part 2c, and the end of a hose 3 is mounted on the outer periphery of it by insertion. Also a collar 4 with a flange 4a is mounted on the end outer periphery of the hose 3 by insertion. Then the end 5b of a nut 5 screwed onto the screw 2b is engaged with the flange 4a of the collar 4 and also engaged and held by a snapring 6, and the nut 5 is tightened to fix the hose 3 pressingly through the collar 4. Thus, when the internal pressure of the hose 3 is built up, the expansion deformation of the hose 3 can be suppressed by the collar 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose joint for connecting a hose used in the process of manufacturing a photographic light-sensitive material.

[0002]

2. Description of the Related Art In the process of manufacturing a photographic light-sensitive material, for example, an emulsion is supplied to a coating device via a hose, and the emulsion is applied to a film base by the coating device to manufacture a photographic light-sensitive material. When manufacturing this photographic light-sensitive material, using a flexible hose to move the coating machine while keeping the emulsion supply line connected, and mainly to prevent contamination due to poor cleaning in the emulsion supply line, Avoids the use of fixed hard pipes and uses soft hoses that are easy to replace.

[0003]

A hose joint is used in an emulsion supply line for supplying the emulsion,
There are various types of hose joints. For example, since a soft hose is used, deformation due to an increase in hose internal pressure near the hose joint,
Due to the problem of the structure of the hose joint itself, a dead space is generated at the connection between the hose and the hose joint. This dead space causes contamination, and if this contamination is mixed in the emulsion, there is a problem that the quality of the photographic light-sensitive material deteriorates.

The present invention has been made in view of the above points, and an object of the present invention is to provide a hose joint in which a dead space is not formed in a connection portion with a hose and contamination is suppressed.

[0005]

In order to solve the above-mentioned problems, a hose joint of the present invention has a hose mounting portion of a joint body, wherein a taper surface inclined in the hose insertion direction is formed on the outer periphery of the hose mounting portion. The inner circumference of the portion is formed to have substantially the same diameter as the inner circumference of the hose, the hose is attached to the outer circumference of the hose mounting portion, a collar having a flange portion on the outer circumference is attached to the hose, and the joint body is attached to the joint body. The end portion of the screwed nut was held by the flange portion of the collar, and a part of the collar was superposed on the hose mounting portion by screwing the nut, and the hose was pressed and fixed to the hose mounting portion. It is characterized by that.

[0006]

According to the present invention, the end of the nut screwed to the joint body is held by the flange of the collar, and the nut is screwed to overlap a part of the collar with the hose mounting portion. It is fixed by pressing on the part.
Therefore, even if the hose internal pressure fluctuates in the vicinity of the hose joint and, for example, the hose internal pressure rises, deformation of the hose that tends to expand due to the collar is suppressed, and the inner circumference of the hose mounting portion and the inner circumference of the hose are Since the diameter is almost the same, there is no dead space at the connection between the hose mounting part and the hose.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a hose joint of the present invention will be described below with reference to the drawings. 1 is a sectional view of a hose joint, FIG. 2 is a sectional view of a joint body, FIG. 3 is a sectional view of a nut, and FIG. 4 is a sectional view of a collar.

Joint body 2 of hose joint 1
Has a connecting portion 2a, a screw portion 2b, and a hose attaching portion 2c. The connecting portion 2a of the joint body 2 is integrally formed with an attaching portion such as a flowmeter or a filter, or is attached by welding. To be

A taper surface 2d is provided on the outer periphery of the hose mounting portion 2c.
Is formed to be inclined in the hose insertion direction, and the tapered surface 2e is formed to be inclined in the hose withdrawing direction on the inner circumference of the hose mounting portion 2c, and is formed to have substantially the same diameter as the inner circumference of the hose 3. A hose 3 is attached to the outer periphery of the hose mounting portion 2c, and a collar 4 having a flange portion 4a on the outer periphery thereof is attached to the hose 3. A screw portion 5a of a nut 5 is screwed onto the screw portion 2b, and an end portion 5b of the nut 5 is held by a flange portion 4a of the collar 4 with a snap ring 6.
The snap ring 6 is engaged with the groove 4b of the collar 4.

As the hose 3, a hose that can be deformed by the pressure of the fluid applied inside is used. For example, a soft plastic,
Those formed of soft polyvinyl chloride, soft polyurethane, etc. are used.

When the nut 5 is screwed, the collar 4 is moved in the hose insertion direction, and a part of the collar 4 is overlapped with the hose mounting portion 2c by the length D, whereby the hose 3 is mounted. The collar 4 is pressed and fixed to the portion 2c. When the nut 5 is screwed, the nut 5 rotates, but since the hose 3 is pressed through the collar 4, the nut 5
The hose 3 is not damaged by the rotation of the.

As described above, the end 5b of the nut 5 screwed to the joint body 2 engages with the flange 4a of the collar 4, and the nut 5 is screwed so that a part of the collar 4 is attached to the hose mounting portion 2c. The hoses 3 are overlapped with each other, whereby the hose 3 is pressed and fixed to the hose mounting portion 2c. For this reason, even if the hose internal pressure fluctuates at the tip of the hose mounting portion 2c and, for example, the hose internal pressure rises, it is possible to suppress the deformation of the hose 3 which tends to expand due to the collar 4. Therefore, the inner circumference of the hose mounting portion 2c and the inner circumference of the hose 3 can be maintained in a state of substantially the same diameter, and a dead space does not occur at the connecting portion between the hose mounting portion 2c and the hose 3.

Therefore, if the hose joint 1 is used in the emulsion supply line for supplying emulsion, no dead space is generated, so that no contamination occurs in the dead space. It is possible to prevent the quality of the photosensitive material from being deteriorated.

Further, since the end portion 5b of the nut 5 is held by the snap ring 6 engaged with the groove 4b of the collar 4, when the nut 5 is loosened and removed from the joint body 2, the collar 4 also comes off at the same time. The collar 4 does not fall off the nut 5 even when it is attached to or detached from the hose 3.

FIG. 5 is a half sectional view of an embodiment in which the hose joint of the present invention is used to connect a flow meter and a hose. The flow meter 10 is used for measuring the flow rate of the emulsion supplied to the coating apparatus via the hoses 11 and 12 in the process of manufacturing the photographic light-sensitive material. Hoses 11 and 12 are connected to an inflow side 10a and an outflow side 10b of the flow meter 10 via a hose joint 1. Joint body 2 of each hose joint 1
Has a flange portion 2f on the connection portion 2a. Bolts 13 and 14 are inserted between the flange portions 2f to insert the nut 1
It is fastened and fixed at 5,16. A bracket 17 is fastened to the bolt 14 together, and the bracket 17 is used to attach the flowmeter 10 to a system for manufacturing a photographic light-sensitive material.

FIG. 6 is a partially broken side view of an embodiment in which the hose joint of the present invention is used for branching a hose. The hose joint 1 has a joint body 2 separated in three directions.
Is used in the process of manufacturing a photographic light-sensitive material, for example, when the hose 30 in one direction is branched into the hoses 31 and 32 in two directions. The hoses 30, 31 and 32 are connected to the respective joint bodies 2 of the hose joint 1 via the nut 5 and the collar 4, and the lock ring 7 is fixed to the collar 4 with the screw 8. The flange 4 a of the collar 4 holds the collar 4 on the nut 5.

[0017]

As described above, in the hose joint of the present invention, the end of the nut screwed to the joint body is held by the flange portion of the collar, and the nut is screwed to attach a part of the collar to the hose. Since the hose is pressed and fixed to the hose attachment part by this, the collar can suppress deformation of the hose even if the internal pressure of the hose increases near the hose joint. Since the inner circumference and the inner circumference of the hose have substantially the same diameter, there is no dead space at the connection between the hose mounting portion and the hose.

Therefore, for example, when this hose joint is used in an emulsion supply line for supplying an emulsion, no dead space is generated, so that contamination does not occur in the dead space, and contamination is mixed in the emulsion to produce a photograph. It is possible to prevent the quality of the photosensitive material from being deteriorated.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a hose joint.

FIG. 2 is a half sectional view of a joint body.

FIG. 3 is a half sectional view of a nut.

FIG. 4 is a half sectional view of a collar.

FIG. 5 is a half cross-sectional view of an example in which a hose joint is used to connect a flow meter and a hose.

FIG. 6 is a partially cutaway side view of an embodiment in which a hose joint is used for branching a hose.

[Explanation of symbols]

 1 Hose joint 2 Joint body 2c Hose mounting part 2d Tapered surface 3 Hose 4 Collar 4a Flange part 5 Nut 5b End part

Claims (1)

[Claims] 1. A taper surface that is inclined in the hose insertion direction is formed on the outer periphery of the hose mounting portion of the joint body,
Form the inner circumference of the hose attachment part to be approximately the same diameter as the inner circumference of the hose,
The hose is attached to the outer periphery of the hose mounting portion, a collar having a flange portion on the outer periphery is inserted into the hose, and the end portion of the nut screwed to the joint body is held by the flange portion of the collar. A hose joint characterized in that a part of the collar is superposed on the hose mounting portion by screwing the nut, and the hose is pressed and fixed to the hose mounting portion.