JP7198044B2 - hose fittings - Google Patents

Description

The present invention relates to a fitting for a hose. In particular, a tubular male fitting is provided at one end of the hose, and a tubular female fitting is provided at one end of the hose to be connected, so that the male fitting and the female fitting are detachably connected. The present invention relates to a fitting for a hose used in a fire hose, wherein the male fitting is provided with a cylindrical engagement tube portion, and a release ring is slid on the engagement tube portion on the outer peripheral side. The male metal fitting and the female metal fitting are connected by inserting the engaging tube portion of the male metal fitting into the inside of the female metal fitting. The present invention relates to a hose fitting in which the releasing ring provided on the tubular portion is moved toward the female fitting to separate the male fitting from the female fitting.

Conventionally, in the use of fire hoses, hose fittings have been used to connect hoses and to separate hoses that have been connected in this way.

Conventionally, as a fitting for a hose as described above, as shown in FIG. The male metal fitting 10 and the female metal fitting 20 are detachably connected by using the one provided with the female metal fitting 20 shaped like a shape.

Here, in the female fitting 20, an engaging piece 21 is provided on the inner surface of the female metal fitting 20, and the engaging piece 21 is urged by a spring means 22 so as to project inward. On the other hand, in the male fitting 10, an engaging stepped portion 11a having a larger diameter is formed on the tip end side of the engaging tubular portion 11 to be inserted into the female fitting 20, and the engaging tubular portion 11 A release ring 12 that slides between the engagement step portion 11a is provided on the outer periphery of the .

Here, in the release ring 12, the cylindrical portion 12a having an inner diameter larger than the outer diameter of the engaging cylindrical portion 11 and having a smaller diameter than the outer diameter of the engaging stepped portion 11a is attached to the engaging cylindrical portion 11. A flange portion 12b having a diameter larger than that of the cylindrical portion 12a is provided slidably on the outer peripheral side of the cylindrical portion 12a at a position opposite to the engagement stepped portion 11a in the cylindrical portion 12a.

In such a hose fitting, as shown in FIG. 1, an engaging stepped portion 11a having a larger diameter on the distal end side of the engaging tubular portion 11 provided on the male fitting 10 and an engaging tubular portion The portion 11 is inserted into the female metal fitting 20, and the engagement piece 21 provided so as to be retractable on the inner surface of the female metal fitting 20 is caused by the elastic force of the spring means 22 by the engagement stepped portion 11a having the enlarged diameter. When the engaging stepped portion 11a is inserted through the portion of the engaging piece 21 in the interior of the female fitting 20, the engaging piece 21 is pushed outward. The male metal fitting 10 and the female metal fitting 20 are connected by projecting inwardly by the spring means 22 and engaging with the engaging cylinder portion 11 at the rear end of the engaging stepped portion 11a.

Further, in the state in which the male metal fitting 10 and the female metal fitting 20 are connected in this manner, the packing 23 provided inside the female metal fitting 20 maintains watertightness. Further, a buffer ring 24 made of rubber is attached to the outer circumference of the female metal fitting 20 .

In order to release the connection between the male metal fitting 10 and the female metal fitting 20 which are connected as described above, the release ring 12 provided slidably on the outer peripheral side of the engaging cylinder portion 11 of the male metal fitting 10 is used as described above. The flange portion 12b is pushed toward the female metal fitting 20, and the cylindrical portion 12a of the release ring 12 is pushed into the female metal fitting 20. The engaging piece 21 engaged with the engaging cylindrical portion 11 is pushed outward against the elastic force of the spring means 22, thereby engaging the engaging piece 21 at the rear end of the engaging stepped portion 11a. The connection between the male metal fitting 10 and the female metal fitting 20 is released by detaching from the joint tube portion 11.例文帳に追加

In addition, when attaching the hose h to the ends opposite to the connection side where the male fitting 10 and the female fitting 20 are connected, the ends of the male fitting 10 and the female fitting 20 opposite to the connecting side Mounting cylinder portions 15 and 25 having unevenness on the outer periphery are provided in each of the mounting cylinder portions 15 and 25, and the mounting cylinder portions 15 and 25 are inserted into the ends of the respective hoses h. Tubular wrap cloths 16 and 26 are provided on the outer circumference of the hose h, and fixing cylinders 17 and 27 are provided to press the wrap wrap cloths 16 and 26 thus provided from the outer circumference. there is Then, the ends of the hoses h into which the mounting cylinders 15 and 25 of the male fitting 10 and the female fitting 20 are inserted are pressed by the fixing cylinders 17 and 27 from the outer peripheral side. Then, they are attached to the mounting cylinder portions 15 and 25 of the male metal fitting 10 and the female metal fitting 20 through the mouth-wrapped cloths 16 and 26, respectively.

Here, in the male metal fitting 10, as the flange portion 12b of the release ring 12 slidably provided on the outer peripheral side of the engaging cylinder portion 11, a circular ring-shaped one is generally used. When the connection between the male metal fitting 10 and the female metal fitting 20 is released, the flange portion 12b protrudes greatly from the outer periphery of the male metal fitting 10. As shown in FIG.

In fire hoses generally used, one end of the hose h is provided with the male fitting 10 as described above and the other end of the hose h is provided with the female fitting 20 as described above. When storing such fire-fighting hoses in use, as shown in FIG. It is housed in a state of being coiled around the male fitting 10.例文帳に追加The reason why the male fitting 10 is centered is that the fire engine, which is the base end of the hose h, is equipped with a male fitting, so that the wound hose h can be extended with the female fitting facing forward. be.

When using a wound hose h, a firefighter carries it in a wound state, for example, places the hose h on his shoulder and holds it with his hand while carrying it to the fire site at a run. becomes. Then, the wound hose h is extended, and the male metal fittings 10 and the female metal fittings 20 provided at the ends of the hose h are successively connected as described above to connect the hose h, and the hose h is connected as required. I'm trying to use the length.

Here, the contact portion where the hose h wound in a coil shape and the circular flange portion 12b projecting from the outer periphery of the male fitting 10 come into contact with each other in an arc shape, and the hose h and the male fitting 10 slide. When the hose h is conveyed in a coiled state, the male fitting 10 slides down from between the wound hose h and causes the hose h to be coiled. When the state of the hose h collapses, the hose h is transported and stretched, or the male fitting 10 and the female fitting 20 provided at the end of the hose h are connected as described above to connect the hose h. There were problems such as hindrance to the work to be done.

For this reason, in the device shown in Patent Document 1, as shown in FIGS. In order to slidably provide the release ring 12 for releasing the connection between the metal fitting 10 and the female metal fitting 20, the flange portion 12b of the release ring 12 is provided with projecting portions 12b1 projecting outward at two locations facing each other. At the same time, a straight line or a curved line having a radius of curvature sufficiently larger than that of the cylindrical portion 12a is formed on the outer periphery of the position perpendicular to the projecting portion 12b1 so as to circumscribe the cylindrical portion 12a of the release ring 12. He is trying to use what formed the notch part 12b2.

4(A) and 4(B), the notch portion 12b2 provided in the flange portion 12b of the release ring 12 of the male metal fitting 10 corresponds to the above-mentioned The hose h can be wound compactly, and the contact portion between the notch portion 12b2 of the flange portion 12b and the hose h is a conventional circular arc shape. By forming a straight line or a curve with a sufficiently large radius of curvature, the contact area is increased, the frictional resistance is increased, and the stability when held by hand is also improved. A proposal has been made to prevent it from coming off the hose h.

However, even when the notch portion 12b2 provided in the flange portion 12b of the release ring 12 of the male fitting 10 is sandwiched between the coiled hose h, the hose h Hose h on the side of the female fitting 20 arranged so as to cover the male fitting 10 when a large impact is applied, such as when a firefighter carries it in a coiled state and transports it to the fire site. floats up, the release ring 12 provided on the outer peripheral side of the engaging tube portion 11 of the male metal fitting 10 rotates freely on the outer periphery of the engaging tube portion 11, and the projecting portion 12b1 of the flange portion 12b is displaced. It comes to be positioned between the coiled hose h, the hose h is lifted by the projecting portion 12b1 and comes into contact, the contact area between the flange portion 12b and the hose h becomes smaller, and the male fitting 10 could not sufficiently solve the problem such as falling out from between the coiled hose h.

JP 2009-207704 A

In the present invention, a tubular male fitting is provided at one end of a hose, and a tubular female fitting is provided at one end of a hose to be connected, so that the male fitting and the female fitting are detachably connected. The object of the present invention is to solve the above-mentioned various problems in the joint fittings of the hose used in the fire hose that has been made into.

In particular, in the present invention, as shown in Patent Document 1, a release ring for releasing the connection between the male metal fitting and the female metal fitting is slidably provided on the outer peripheral side of the engaging cylinder portion of the male metal fitting. The flange portion of the release ring is formed with a notch portion that is straight or curved with a sufficiently large radius of curvature. In the case where it is sandwiched between hoses wound in a coil shape, it is large when a firefighter carries it and transports it to a fire site while the hose is wound in a coil shape. Even if an impact is applied and the hose on the side of the female fitting placed so as to cover the male fitting floats up, the release ring provided on the outer peripheral side of the engaging tubular portion of the male fitting will still hold the engaging tubular portion. To solve problems such as a male metal fitting falling out from between coiled hoses by preventing arbitrary rotation on the outer periphery of the coil.

In order to solve the above problems, the hose fitting according to the present invention is a hose fitting that detachably connects a male fitting and a female fitting provided at the end of the hose, wherein the male fitting is provided with a tubular engaging cylinder portion for insertion into the female fitting, and an engaging stepped portion is provided at the insertion side end of the engaging tubular portion, and the engaging stepped portion is provided on the inner surface side of the female fitting. An engaging piece engaged with the stepped portion is provided so as to be retractable, and the engaging piece of the female fitting is engaged with the engaging stepped portion by sliding on the outer peripheral side of the engaging cylindrical portion of the male fitting. As a release ring for releasing, a flange portion is provided on the opposite side of the engagement stepped portion in the cylindrical portion that slides between the engagement stepped portion on the outer periphery of the engagement tube portion, and a cutout portion is provided in the flange portion is provided , and physical and inelastic rotation restraining means for restraining the release ring from rotating on the outer periphery of the engaging cylinder is provided.

Further, in the release ring for releasing the engagement piece of the female metal fitting engaged with the engagement stepped portion by sliding on the outer peripheral side of the engagement cylindrical portion of the male metal fitting as described above, the engagement at the cylindrical portion is provided. A notch is provided in the flange on the side opposite to the stepped portion, and physical and inelastic rotation restraint means is provided to restrain the release ring from rotating on the outer circumference of the engaging cylinder. A large impact is applied when the notch provided on the flange of the release ring is sandwiched between the coiled hoses, and the female fitting is placed over the male fitting. Even if the hose floats up, the rotation suppressing means prevents the release ring from rotating freely on the outer periphery of the engaging cylinder.

Here, in the fitting of the hose according to the present invention, the physical and inelastic rotation suppressing means for suppressing the rotation of the release ring on the outer circumference of the engaging tube portion as described above includes:
As the first rotation suppressing means, an engaging convex portion is provided on one of the outer peripheral surface of the engaging cylindrical portion and the inner peripheral surface of the release ring, and the other is engaged with the engaging convex portion. and the engagement recess is provided, and the engagement protrusion is engaged with the engagement recess to prevent the release ring from rotating unintentionally,
As the second rotation suppressing means, locking member insertion grooves are provided on the outer peripheral surface of the engaging cylinder portion and the inner peripheral surface of the release ring so as to face each other, The locking member can be inserted into the member insertion groove to prevent the release ring from rotating unintentionally,
As the third rotation suppressing means, a temporary locking member for releasably locking the engaging tubular portion and the releasing ring is provided on the engaging tubular portion and the releasing ring. it is possible to prevent the release ring from rotating freely by locking the temporary locking member;
As the fourth rotation suppressing means, a rotation suppressing member is protruded from the male metal fitting toward the engaging cylinder so as to face the cutout portion of the release ring, and the rotation suppressing member is cut by the rotation suppressing member. Rotation of the release ring can be suppressed via the notch.

In the joint fitting for a hose according to the present invention, when the male fitting and the female fitting provided at the end of the hose are detachably connected as described above, the male fitting slides on the outer peripheral side of the engaging cylindrical portion of the male fitting. As a release ring for releasing the engagement piece of the female fitting engaged with the engagement stepped portion, the engagement stepped portion of the tubular portion slides between the engagement stepped portion on the outer periphery of the engagement tubular portion. Since the flange part is provided on the opposite side to the flange part and the notch part is provided in the flange part, the notch part provided in the flange part of the release ring in the male metal fitting is When the hose is sandwiched between the coiled hose, the hose can be wound compactly, and the contact area between the notch on the flange and the hose increases, increasing the frictional resistance. It is prevented from coming off from the coiled hose.

In addition, in the hose fitting according to the present invention, since the release ring is provided with a physical and inelastic rotation suppressing means for suppressing rotation of the release ring on the outer circumference of the engaging cylinder, the male member is When the notch on the flange of the release ring of the metal fitting is sandwiched between the coiled hoses, firefighters carry it to the scene of a fire, etc., to avoid a large impact. As a result, even if the hose on the side of the female fitting placed so as to cover the male fitting floats up, the release ring is prevented from freely rotating on the outer circumference of the engaging cylinder, and the male fitting is coiled. It is prevented from falling out from between the hoses that are wound tightly.

FIG. 10 is a half-cut cross-sectional explanatory view showing a state in which a male fitting and a female fitting are connected to each other in a conventional hose fitting. In the conventional hose fitting shown in FIG. 1, the hose with the male and female fittings disconnected is folded in two near the center in the longitudinal direction, and wound into a coil around the folded portion, Shows the state where the hose on the female fitting side is put on the male fitting, (A) is a schematic front view, and (B) is a schematic cross section of the part where the hose on the female fitting side is put on the male fitting. It is a diagram. The state of the male metal fitting used in the joint metal fitting of the hose shown in Patent Document 1 is shown, (A) is a schematic plan view of the state in which the notch portion in the flange portion of the release ring is positioned above, and (B) is a FIG. 7C is a schematic front view of a state in which the cutout portion of the flange portion of the release ring is positioned upward, and (C) is a schematic right side view of the state in which the cutout portion of the flange portion of the release ring is positioned upward. In the hose fitting shown in Patent Document 1, the hose with the male and female fittings disconnected is folded in two near the center in the longitudinal direction, wound in a coil around the folded portion, and released. The cutout portion of the flange portion of the ring is sandwiched between the wound hoses so that the male fitting is covered with the hose on the female fitting side, (A) is a schematic front view, (B) is a schematic cross-sectional view of a portion where the male fitting is covered with the hose on the side of the female fitting. In the male fitting used for the hose fitting according to Embodiment 1 of the present invention, an engaging projection is provided on the inner peripheral surface of the release ring, and the engaging tubular portion is engaged with the engaging projection on the outer peripheral surface. (A) is a schematic plan view of a state in which the notch portion in the flange portion of the release ring is positioned above, and (B) is XX shown in (A) above. It is a line sectional view. In the male fitting used for the hose joint fitting according to Embodiment 2 of the present invention, an engaging recess is provided on the inner peripheral surface of the release ring, and the outer peripheral surface of the engaging cylindrical portion is engaged with the engaging recess. (A) is a schematic plan view of a state in which the cutout portion of the flange portion of the release ring is positioned above, and (B) is the XX line shown in (A) above. It is a sectional view. In a male fitting used as a fitting for a hose according to Embodiment 3 of the present invention, locking member insertion grooves are provided in the outer peripheral surface of the engaging cylinder portion and the inner peripheral surface of the release ring so as to face each other. FIG. 4A is a schematic plan view showing a state in which a quadrangular prism-shaped locking member is inserted into a locking member insertion groove provided, and FIG. , (B) is a cross-sectional view taken along line XX shown in (A) above. In the male fitting used for the fitting of the hose in Embodiment 3, a modified example in which a round bar-shaped locking member is inserted into the locking member insertion groove provided facing each other is shown (A ) is a schematic plan view of the flange portion of the release ring in which the cutout portion is positioned above, and (B) is a cross-sectional view taken along the line XX shown in (A) above. In the male metal fitting used for the hose fitting according to Embodiment 4 of the present invention, a first magnet member is provided on the outer peripheral surface of the end portion of the engaging cylindrical portion on the side of the mounting cylindrical portion toward the flange portion of the release ring. In addition, when the second magnet member is provided at the position of the flange portion of the release ring facing the first magnet member, (A) shows a state in which the cutout portion of the flange portion of the release ring is positioned upward. wherein the second magnet member provided on the flange of the release ring is provided at the end of the engagement tube on the side of the attachment tube by sliding the release ring toward the attachment tube side of the engagement tube. A schematic plan view showing a state in which the release ring is magnetically attached to the first magnet member and locked to the engagement tube portion by magnetic force, and (B) is a schematic plan view showing the state in which the release ring is engaged in the state of (A). FIG. 4C is a schematic plan view showing a state in which the cylindrical portion is moved toward the engagement stepped portion, and FIG. In the male fitting used for the fitting of the hose according to Embodiment 5 of the present invention, it extends in a hook shape from the end of the engaging tubular portion on the mounting tubular portion side toward the engaging step portion of the engaging tubular portion. (A) is a case in which the cutout portion of the flange portion of the release ring is positioned at the top when the rotation suppressing member is protruded into the cutout portion of the release ring, the projection amount of which is less than that of the overhanging portion of the release ring. 4 shows a state in which the rotation suppressing member is extended into a notch portion of the release ring that protrudes less than the overhanging portion of the release ring, and the rotation of the release ring is stopped by the rotation suppressing member. (B) is a schematic plan view showing a state in which the release ring is moved from the state (A) toward the engagement stepped portion of the engagement cylindrical portion; (C) is a schematic plan view showing the state (A ) is a cross-sectional view taken along the line XX.

Hereinafter, a fitting for a hose according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. In addition, the joint metal fitting of the hose according to the present invention is not limited to those shown in the following embodiments, and can be modified as appropriate without changing the gist of the invention.

Here, also in the embodiment of the present invention, similarly to the conventional hose fitting shown in FIGS. The engagement piece provided so as to be retractable to the inner surface of the female metal fitting 20 by inserting the cylindrical engagement part 11 into the interior of the female metal fitting 20 from the joint step portion 11a, and the engagement step portion 11a having the enlarged diameter. 21 is pushed outward against the elastic force of the spring means 22, and when the engaging stepped portion 11a is inserted through the portion of the engaging piece 21 inside the female fitting 20, the The engaging piece 21 is protruded inwardly by the spring means 22 and engaged with the engaging cylindrical portion 11 at the rear end of the engaging stepped portion 11a so that the male fitting 10 and the female fitting 20 are connected. In addition, in the state where the male metal fitting 10 and the female metal fitting 20 are connected in this manner, the packing 23 provided inside the female metal fitting 20 maintains watertightness. Further, a buffer ring 24 made of rubber is attached to the outer circumference of the female metal fitting 20 .

In order to release the connection between the male metal fitting 10 and the female metal fitting 20 which are connected as described above, the release ring 12 provided slidably on the outer peripheral side of the engaging cylinder portion 11 of the male metal fitting 10 is used as described above. The flange portion 12b is pushed toward the female metal fitting 20, and the cylindrical portion 12a of the release ring 12 is pushed into the female metal fitting 20. The engaging piece 21 engaged with the engaging cylindrical portion 11 is pushed outward against the elastic force of the spring means 22, thereby engaging the engaging piece 21 at the rear end of the engaging stepped portion 11a. The connection between the male metal fitting 10 and the female metal fitting 20 is released by detaching from the joint tube portion 11.例文帳に追加

Mounting cylinders 15 and 25 having irregularities on their outer circumferences are provided at the ends opposite to the connecting side where the male metal fitting 10 and the female metal fitting 20 are connected. It is inserted into the end portion of each hose h, and cylindrical mouth wrapping cloths 16 and 26 are provided on the outer peripheral side of each hose h into which each mounting cylinder portion 15 and 25 is inserted in this way, and each mouth The winding cloths 16, 26 are pressed from the outer peripheral side by the fixing cylinders 17, 27, and the ends of the hoses h into which the mounting cylinders 15, 25 of the male fitting 10 and the female fitting 20 are inserted are secured. , and are attached to the mounting cylinder portions 15 and 25 of the male metal fitting 10 and the female metal fitting 20 via the mouth-wrapped cloths 16 and 26, respectively.

Further, in the embodiment of the present invention, the male metal fitting 10 and the female metal fitting 20 are arranged on the outer peripheral side of the engaging cylinder portion 11 of the male metal fitting 10 as shown in the above-mentioned Patent Document 1. In order to slidably provide the release ring 12 for releasing the connection, the flange portion 12b of the release ring 12 is formed with outwardly protruding projecting portions 12b1 at two opposite locations. A notch portion 12b2 is formed on the outer periphery at a position orthogonal to the portion 12b1 so as to circumscribe the cylindrical portion 12a of the release ring 12 and form a straight line or a curved line having a radius of curvature sufficiently larger than that of the cylindrical portion. I try to use things. In forming the overhanging portion 12b1 and the notch portion 12b2 in the flange portion 12b of the release ring 12 as described above, the overhanging portion of the flange portion 12b of the release ring 12 is similar to that described in Patent Document 1. The shapes of the portion 12b1 and the notch portion 12b2 are not particularly limited, and the projecting portion 12b1 is formed by manually pushing the release ring 12 in the direction of the female metal fitting 20 in order to release the coupling state between the female metal fitting 20 and the male metal fitting 10. It is preferable that the notch 19 has a size and shape that allow it to be pushed, and the notch 19 preferably has a linear shape that circumscribes the cylindrical portion 12a of the release ring 12, but has a greater curvature than the projecting portion 12b1. It may be a curve that is close to a straight line with a sufficiently large radius.

Further, in the embodiment of the present invention, a rotation suppressing means 30 is provided to suppress the release ring 12 of the male fitting 10 from rotating on the outer circumference of the engaging cylinder portion 11 .

Next, a specific embodiment of the rotation suppressing means 30 that suppresses the rotation of the release ring 12 of the male fitting 10 on the outer circumference of the engaging cylinder portion 11 will be described.

(Embodiment 1)
In the first embodiment, as shown in FIGS. 5(A) and 5(B), as the rotation suppressing means 30, the inner peripheral surface of the release ring 12 of the male fitting 10 is directed inwardly toward each other. A pair of engaging protrusions 31 are provided on the outer peripheral surface of the engaging cylindrical portion 11, and the pair of engaging protruding portions 31 provided on the inner peripheral surface of the release ring 12 are engaged with each other. A pair of engaging concave portions 32 are provided to match each other, and the engaging convex portion 31 provided on the inner peripheral surface of the release ring 12 is engaged with the engaging concave portion 32 provided on the outer peripheral surface of the engaging cylindrical portion 11 to release. He is trying to suppress that the ring 12 rotates freely on the outer periphery of the engagement cylinder part 11. - 特許庁

When the pair of engaging protrusions 31 provided on the inner peripheral surface of the release ring 12 are engaged with the pair of engaging recesses 32 provided on the outer peripheral surface of the engaging cylindrical portion 11, the above-described operation is achieved. The hose h that has released the connection between the male fitting 10 and the female fitting 20 is wound in a coil shape, and the notch portion 12b2 provided in the flange portion 12b of the release ring 12 of the male fitting 10 is wound in a coil shape. When the hose h is sandwiched between the hoses h, when a firefighter carries the hose h wound in this way and carries it to the fire site, a large impact is applied, and the male fitting 10 is covered with the hose h. Even if the hose h on the side of the arranged female fitting 20 floats, the releasing ring 12 provided on the outer peripheral side of the engaging tubular portion 11 of the male fitting 10 rotates freely on the outer periphery of the engaging tubular portion 11. This prevents the male fitting 10 from coming off from between the coiled hose h.

In the first embodiment, a pair of engaging protrusions 31 are provided on the inner peripheral surface of the release ring 12 facing each other, and the outer peripheral surface of the engaging cylindrical portion 11 is provided with a pair of protrusions 31 facing inward. A pair of engaging recesses 32 that engage with the pair of engaging protrusions 31 are provided in the portions facing each other. Only one engagement concave portion 32 that engages with the engagement convex portion 31 provided on the outer peripheral surface of the engagement cylinder portion 11 may be provided.

Furthermore, as another embodiment of the engaging protrusion 31, a screw hole is formed in the release ring 12, and a bolt or pin is screwed into the screw hole, and the tip of the bolt or pin is attached to the inner peripheral surface of the release ring 12. A configuration in which the tip portion of the ball plunger protrudes from the ball plunger is also suitable.

(Embodiment 2)
In the second embodiment, as shown in FIGS. 6(A) and 6(B), as the rotation suppressing means 30, the inner peripheral surface of the release ring 12 of the male fitting 10 is provided with a ring facing outward. A pair of engaging recesses 32 are provided on the outer peripheral surface of the engaging cylindrical portion 11, and the pair of engaging recessed portions 32 provided on the inner peripheral surface of the release ring 12 are engaged with the opposing portions of the outer peripheral surface of the engaging cylinder portion 11. A pair of engaging protrusions 31 are provided, and the pair of engaging protrusions 31 provided on the outer peripheral surface of the engaging cylindrical portion 11 are engaged with the pair of engaging recesses 32 provided on the inner peripheral surface of the release ring 12. Thus, the release ring 12 is prevented from freely rotating on the outer periphery of the engaging tube portion 11 .

Even when the pair of engagement recesses 32 provided on the inner peripheral surface of the release ring 12 are engaged with the pair of engagement protrusions 31 provided on the outer peripheral surface of the engagement tube portion 11, the above-mentioned In the same manner as in the first embodiment, the hose h is wound in a coil shape after releasing the connection between the male fitting 10 and the female fitting 20, and the notch provided in the flange portion 12b of the release ring 12 of the male fitting 10 In the case where the portion 12b2 is sandwiched between the coiled hoses h, when a firefighter carries the coiled hose h and transports it to the fire site, a large impact is applied. Even if the hose h on the side of the female metal fitting 20 arranged to cover the male metal fitting 10 floats, the release ring 12 provided on the outer peripheral side of the engaging cylinder portion 11 of the male metal fitting 10 prevents the above-mentioned engagement. Arbitrary rotation of the outer circumference of the tubular portion 11 is prevented, and the male fitting 10 is prevented from coming off from between the coiled hose h.

In the second embodiment, a pair of engaging recesses 32 are provided on the inner peripheral surface of the release ring 12 facing each other, and the outer peripheral surface of the engaging cylindrical portion 11 The engaging convex portions 31 that engage with the pair of engaging concave portions 32 are provided in the facing portions, respectively. 11 may be provided with only one engaging convex portion 31 that engages with the engaging concave portion 32 provided on the outer peripheral surface.

(Embodiment 3)
In the third embodiment, as shown in FIGS. 7(A) and 7(B), as the rotation suppressing means 30, the inner peripheral surface of the release ring 12 of the male fitting 10 is directed outwardly toward each other. A pair of locking member inserting grooves 33 are provided on the inner peripheral surface of the release ring 12, and a pair of locking member insertion grooves 33 are provided on the inner peripheral surface of the release ring 12 so as to extend inward from the opposing portions of the outer peripheral surface of the engaging cylinder portion 11 respectively. A pair of locking member insertion grooves 33 are provided so as to face the locking member insertion grooves 33 . The locking members 34 each having a square prism shape are inserted into a pair of space portions formed opposite to the pair of locking member insertion grooves 33 provided, and the release ring 12 is pushed onto the outer circumference of the engaging cylindrical portion 11 . It is designed to suppress unintentional rotation in .

Thus, the pair of locking member insertion grooves 33 provided on the inner peripheral surface of the release ring 12 and the pair of locking member insertion grooves 33 provided on the outer peripheral surface of the engaging cylinder portion 11 are formed to face each other. In the case where the locking members 34 in the form of square poles are inserted into the pair of space portions, respectively, the connection between the male metal fitting 10 and the female metal fitting 20 is released as in the case of the first and second embodiments. When the hose h is wound in a coil shape and the notch portion 12b2 provided in the flange portion 12b of the release ring 12 of the male fitting 10 is sandwiched between the coiled hose h When a firefighter carries the hose h wound in this way to a fire site, a large impact is applied, and the hose h on the side of the female fitting 20 arranged so as to cover the male fitting 10 floats up. Even so, the release ring 12 provided on the outer peripheral side of the engaging tube portion 11 of the male metal fitting 10 is prevented from rotating freely on the outer periphery of the engaging tube portion 11, and the male metal fitting 10 can be coiled. Dropping out from between the wound hoses h is suppressed.

In the third embodiment, the pair of locking member insertion grooves 33 provided on the inner peripheral surface of the release ring 12 and the pair of locking member insertion grooves 33 provided on the outer peripheral surface of the engaging cylinder portion 11 face each other. The locking member 34 in the form of a quadrangular prism is inserted into the pair of space portions formed by the above-mentioned construction. It is also possible to insert one locking member 34 in the shape of a quadrangular prism into one space portion so as to face the locking member insertion groove 33 provided on the outer peripheral surface of the housing.

Further, in the third embodiment, the pair of locking member insertion grooves 33 provided on the inner peripheral surface of the release ring 12 and the pair of locking member insertion grooves 33 provided on the outer peripheral surface of the engaging cylinder portion 11 face each other. The locking members 34 each having a quadrangular prism shape are inserted into the pair of space portions formed in this way. The shape of the locking member 34 to be inserted into the space formed facing the locking member insertion groove 33 provided on the outer peripheral surface of the engaging cylinder 11 is not particularly limited. For example, as shown in FIGS. 8A and 8B, a pair of locking member insertion grooves provided on the inner peripheral surface of the release ring 12 33 and a pair of locking member insertion grooves 33 provided on the outer peripheral surface of the engaging cylinder portion 11 are formed in a pair of space portions facing each other. may

(Embodiment 4)
In the fourth embodiment, as shown in FIGS. 9A, 9B, and 9C, as the rotation suppressing means 30, the male metal fitting 10 is attached to the hose h in the engaging cylinder portion 11. A pair of first temporary locking members, which are an example of temporary locking members that are releasably locked toward the flange portion 12b of the release ring 12, respectively, on the opposing portions of the outer peripheral surface of the end portion on the cylindrical portion 15 side. A magnet member 35a is provided, and the flange portion 12b of the release ring 12 faces a pair of first magnet members 35a provided on the outer peripheral surface of the end portion of the engagement cylinder portion 11 on the mounting cylinder portion 15 side. A pair of second magnet members 35b are provided at positions where they are aligned.

Then, the male metal fitting 10 is separated from the female metal fitting 20, and as shown in FIG. The second magnet member 35b provided so as to face the first magnet member 35a is moved to the flange portion 12b of the release ring 12 by sliding it toward the portion 15 side. 35a is magnetically attached so that the release ring 12 is locked to the engagement tube portion 11 by magnetic force.

Here, the first magnet member 35a provided on the engaging cylinder portion 11 and the second magnet member 35b provided on the flange portion 12b of the release ring 12 are magnetically attached to engage each other. When the releasing ring 12 is magnetically locked to the cylindrical portion 11, the hose h, which is released from the connection between the male fitting 10 and the female fitting 20, is coiled as in the first to third embodiments. In the case where the notch portion 12b2 provided in the flange portion 12b of the release ring 12 of the male fitting 10 is sandwiched between the coiled hose h, the hose h is wound in this manner. When a firefighter carries the hose h to a fire site, etc., a large impact is applied, and even if the hose h on the side of the female fitting 20 arranged to cover the male fitting 10 floats, the male fitting 10 A release ring 12 provided on the outer peripheral side of the engaging tubular portion 11 is prevented from rotating freely on the outer periphery of the engaging tubular portion 11, and the male fitting 10 is arranged between the hose h wound in a coil shape. It will be suppressed to drop out from.

In the fourth embodiment, when the male metal fitting 10 and the female metal fitting 20 are in the connected state, the flange portion of the release ring 12 is required to release the connection between the male metal fitting 10 and the female metal fitting 20. From the state in which the second magnet member 35b provided in the engaging tube portion 12b is magnetically attached to the first magnet member 35a provided in the engaging cylinder portion 11, the release ring 12 is moved as shown in FIG. 9(B). against the magnetic force of the first magnet member 35a and the second magnet member 35b, the release ring 12 is moved toward the engagement stepped portion 11a of the engagement tube portion 11, and the release is performed as described above. By pushing the cylindrical portion 12a of the ring 12 into the female fitting 20, the connection between the male fitting 10 and the female fitting 20 can be released.

Here, in the fourth embodiment, the position and number of the first magnet member 35a provided on the engagement tube portion 11 and the second magnet member 35b provided on the release ring 12 are not particularly limited. and the release ring 12 by magnetic force. The second magnet member 35b may be provided on the entire circumference of the flange portion 12b of the release ring 12 so as to face it, or the first magnet member 35a. is provided on the outer peripheral surface of the engaging tube portion 11, and the second magnet member 35b is provided on the inner peripheral surface of the release ring 12 so as to face it.

Furthermore, it is possible to employ a hook-and-loop fastener, a button, a hook, or the like, which acts as a temporary locking means like the magnet member 35b.

(Embodiment 5)
In the fifth embodiment, as shown in FIGS. 10A, 10B, and 10C, as the rotation suppressing means 30, in the male metal fitting 10, the hose h in the engaging cylinder portion 11 is attached. A pair of rotation suppressing members 36 each extending in a hook shape toward the engaging stepped portion 11a of the engaging tubular portion 11 is attached to the end portion of the tubular portion 15 side facing each other. , the cutout portions 12b2 having a smaller amount of protrusion than the overhanging portion 12b1 in .

Here, in the fifth embodiment, as shown in FIG. 10(A), the release ring 12 is positioned on the attachment cylinder portion 15 side of the engagement cylinder portion 11, and is shifted from the state shown in FIG. 10(B). As shown in , even when the release ring 12 is guided to the engagement stepped portion 11a of the engagement cylinder portion 11, the pair of rotation suppressing members 36 are positioned in the respective cutout portions of the release ring 12. 12b2, and the release ring 12 moves from the position on the mounting cylinder portion 15 side of the engagement cylinder portion 11 to the position of the engagement stepped portion 11a of the engagement cylinder portion 11 without permission. Also, the pair of rotation suppressing members 36 press the cutouts 12b2 of the release ring 12 to suppress the release ring 12 from freely rotating on the outer periphery of the engagement tube portion 11. I have to.

Then, a pair of rotation restraints extending in a hook shape from the end portion of the engaging tubular portion 11 on the mounting tubular portion 15 side to which the hose h is attached toward the engaging stepped portion 11a of the engaging tubular portion 11 as described above. Even when the member 36 is projected so as to face each of the notch portions 12b2 having a projection amount smaller than that of the overhanging portion 12b1 of the release ring 12, it is the same as in the first to fourth embodiments. Then, the hose h that has released the connection between the male fitting 10 and the female fitting 20 is wound in a coil shape, and the notch portion 12b2 provided in the flange portion 12b of the release ring 12 of the male fitting 10 is wound in a coil shape. In the case where the wound hose h is sandwiched between the wound hoses h, a large impact is applied when the firefighter carries the wound hose h to the fire site, etc., and the male fitting 10 is covered. Even if the hose h on the side of the female metal fitting 20 arranged in this manner floats, the release ring 12 provided on the outer peripheral side of the engaging cylindrical portion 11 of the male metal fitting 10 will arbitrarily move on the outer periphery of the engaging cylindrical portion 11. This prevents the male fitting 10 from rotating and prevents the male fitting 10 from coming off from between the coiled hose h.

In this fifth embodiment, hooks are provided at the ends of the engaging tubular portion 11 on the side of the mounting tubular portion 15 to which the hose h is attached. The pair of rotation suppressing members 36 extending in the shape of a mold are made to protrude from the notch portions 12b2 of the release ring 12, which have a smaller amount of protrusion than the overhanging portions 12b1. Only one rotation suppressing member 36 is provided, and this one rotation suppressing member 36 is made to protrude from one notch portion 12b2 of the release ring 12, which has a smaller amount of protrusion than the projecting portion 12b1. good too.

10 : Male fitting 11 : Engagement tubular portion 11a : Engagement stepped portion 12 : Release ring 12a : Tubular portion 12b : Flange portion 12b1 : Overhanging portion 12b2 : Notch 15 : Mounting tubular portion 16 : Closing cloth 17 : Fixed Cylinder 19 : Notch 20 : Female fitting 21 : Engagement piece 22 : Spring means 23 : Packing 24 : Buffer ring 25 : Mounting cylinder 26 : Closure cloth 27 : Fixing cylinder 30 : Rotation suppressing means 31 : Engagement protrusion 32 : Engagement recess 33 : Locking member insertion groove 34 : Locking member 35a : First magnet member (temporary locking member)
35b: second magnet member (temporary locking member)
36: Rotation suppressing member h: Hose

Claims (5)

In a hose fitting that detachably connects a male fitting and a female fitting provided at the end of a hose,
The male fitting is provided with a cylindrical engagement tube portion that is inserted into the interior of the female fitting,
An engagement stepped portion is provided at the insertion side end of the engagement cylinder,
An engaging piece to be engaged with the engaging step portion is provided on the inner surface side of the female metal fitting so as to be retractable, and the engaging step portion slides on the outer peripheral side of the engaging cylindrical portion of the male metal fitting. As a release ring for releasing the engagement piece of the female metal fitting engaged with
A flange portion is provided on the opposite side of the engaging stepped portion of the cylindrical portion that slides between the engaging stepped portion on the outer circumference of the engaging cylindrical portion,
Using this flange with a notch,
A fitting for a hose, comprising physical and non-elastic rotation restraining means for restraining the release ring from rotating on the outer periphery of the engaging cylinder. 2. The fitting for a hose according to claim 1, wherein as the rotation suppressing means, an engaging convex portion is provided on one of the outer peripheral surface of the engaging cylindrical portion and the inner peripheral surface of the release ring, and the other is provided with an engaging projection. and an engaging concave portion engaged with the engaging convex portion. 2. The fitting for a hose according to claim 1, wherein as the rotation suppressing means, locking member insertion grooves are provided in the outer peripheral surface of the engaging tubular portion and the inner peripheral surface of the release ring so as to face each other, A fitting for a hose, characterized in that a locking member is inserted into said locking member insertion groove provided facing each other. 2. A hose fitting according to claim 1, wherein said rotation suppressing means is a temporary locking member that releasably locks said engaging tubular portion and said releasing ring to said engaging tubular portion and said releasing ring. A fitting for a hose characterized by providing a 2. The hose joint fitting according to claim 1, wherein said rotation suppressing means includes a rotation suppressing member extending from said male fitting toward said engaging cylindrical portion so as to face said notch portion of said release ring. A fitting for a hose, characterized in that the rotation suppressing member suppresses rotation of the release ring through the notch.

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