JP2020069092A - Joint fitting for hose - Google Patents

Abstract

To provide a joint fitting for a hose for detachably connecting a male fitting and a female fitting provided on an end part of a hose, capable of preventing the male fitting from falling from a hose which is wound in a coil-form by separating the male fitting and the female fitting.SOLUTION: An engagement cylindrical part 11 provided on a male fitting 10 is inserted into a female fitting 20 for coupling both fittings, on the other hand, at an outer peripheral side of the engagement cylindrical part 11, a release ring 12 comprising a cylindrical part 12a and a flange part 12b is slid to the female fitting side for separating the male fitting and the female fitting, in a joint fitting for a hose. In the joint fitting for a hose, protrusion parts 12b1 protruded outward relative to the cylindrical part are provided on facing positions on the flange part, respectively, a notch part 12b2 whose protrusion amount is smaller than that of the protrusion parts is provided between the protrusion parts, and rotation suppression means 30 for suppressing the release ring from rotating on a periphery of the engagement cylindrical part is arranged.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a hose joint fitting. In particular, while a cylindrical male metal fitting is provided at one end of the hose, a cylindrical female metal fitting is provided at one end of the hose to be connected so that the male metal fitting and the female metal fitting are detachably connected. The present invention relates to a hose joint fitting used for fire fighting hoses. The male fitting is provided with a cylindrical engaging cylinder, and a releasing ring is slid on the outer peripheral side of the engaging cylinder. The male fitting and the female fitting are connected so that the engaging tubular portion of the male fitting is inserted into the female fitting, while the male fitting and the female fitting are separated from each other. The present invention relates to a hose joint fitting in which a male fitting is detached from a female fitting by moving the release ring provided in the tubular portion toward the female fitting.

  Conventionally, when using a fire hose, a hose joint fitting has been used to connect the hoses and to separate the hoses thus connected.

  As a joint fitting for a hose as described above, conventionally, as shown in FIG. 1, a tubular male fitting 10 is provided at one end of one hose h, while a tubular male fitting 10 is provided at one end of the other hose h. The male metal fitting 10 and the female metal fitting 20 described above are detachably connected to each other by using a female metal fitting 20 having a shape.

  Here, the female fitting 20 is provided with an engaging piece 21 capable of projecting and retracting on the inner surface thereof, and the engaging piece 21 is always urged by a spring means 22 so as to project inward. On the other hand, in the male fitting 10, the engaging tubular portion 11a inserted into the female fitting 20 is formed with an engagement step portion 11a having a large diameter at the front end side, and the engaging tubular portion 11 is formed. A release ring 12 is provided on the outer periphery of which is slidable between the engagement stepped portion 11a.

  Here, in this release ring 12, the inner diameter is larger than the outer diameter of the engagement tubular portion 11, while the tubular portion 12a having a smaller diameter than the outer diameter of the engagement stepped portion 11a is used. In addition to being slidably provided on the outer peripheral side, a flange portion 12b having a larger diameter than the tubular portion 12a is provided at a position opposite to the engaging stepped portion 11a in the tubular portion 12a.

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

  Further, the watertightness is maintained by the packing 23 provided inside the female metal fitting 20 in a state where the male metal fitting 10 and the female metal fitting 20 are connected to each other in this manner. Further, a rubber cushioning ring 24 is attached to the outer periphery of the female fitting 20.

  When releasing the connection between the male metal fitting 10 and the female metal fitting 20 connected as described above, the release ring 12 slidably provided on the outer peripheral side of the engagement tubular portion 11 of the male metal fitting 10 is released. The flange portion 12b is pushed toward the female fitting 20, and the tubular portion 12a of the release ring 12 is pushed into the female fitting 20. The tip of the tubular portion 12a causes the rear end of the engagement step portion 11a to move. The engaging piece 21 engaged with the engaging tube portion 11 is spread outwardly against the elastic force of the spring means 22, whereby the engaging piece 21 is engaged at the rear end of the engaging step portion 11a. The connection between the male fitting 10 and the female fitting 20 is released by detaching the fitting 11 from the fitting portion 11.

  When attaching the hoses h to the ends of the male metal fitting 10 and the female metal fitting 20 that are on the opposite side to the connecting side, the male metal fitting 10 and the female metal fitting 20 are connected on the opposite side to the connecting side. The mounting cylinders 15 and 25 having irregularities on their outer circumferences are provided in each of the mounting cylinders 15 and 25, and the mounting cylinders 15 and 25 are inserted into the ends of the respective hose h. Provided on the outer peripheral side of the hose h are cylindrical mouth-wrapping cloths 16 and 26, respectively, and are provided respective fixing cylinders 17 and 27 for pressing the respective mouth-wrapping cloths 16 and 26 thus provided from the outer peripheral side. 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 from the outer peripheral side by the fixing cylinders 17 and 27. Then, it is attached to the respective mounting cylinder portions 15 and 25 of the male metal fitting 10 and the female metal fitting 20 via the mouth-wrapping cloths 16 and 26.

  Here, in the male fitting 10, a circular ring-shaped member is generally used as the flange portion 12b of the release ring 12 slidably provided on the outer peripheral side of the engagement cylinder portion 11, When the connection between the male fitting 10 and the female fitting 20 is released, the flange portion 12b is in a state of largely protruding from the outer periphery of the male fitting 10.

  In a commonly used fire hose, one in which the male fitting 10 is provided on one end side of the hose h as described above and the female fitting 20 is provided on the other end side of the hose h as described above. When storing such a fire hose, as shown in FIG. 2 (A), the hose h in which the connection between the male fitting 10 and the female fitting 20 is released is used as described above. The male metal fitting 10 is housed in a coiled state. The reason why the male fitting 10 is centered is that the hose h wound at the proximal end of the hose h is equipped with a male fitting so that the wound hose h can be stretched with the female fitting in front. is there.

  When using the wound hose h, the fireman must carry the wound hose, for example, place the hose h on his / her shoulder and hold it with his / her hand while transporting the fire scene by running feet. Becomes Then, the wound hose h is extended and the male fitting 10 and the female fitting 20 provided at the end of the hose h are connected one after another as described above to connect the hose h, and the hose h is required. I am trying to make it into a length and use it.

  Here, the contact portion where the hose h wound in a coil shape and the circular flange 12b protruding 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. It is in an easy state, and when the hose h is transported in a coiled state, the male metal fitting 10 slides down from between the wound hose h and is wound into a coil. The state of the hose h collapses and the hose h is transported and extended, 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 was a problem such as trouble in the work to do.

  Therefore, as shown in FIGS. 3 (A), 3 (B), and 3 (C), in the one disclosed in Patent Document 1, as described above, the male fitting 10 is provided with a male member 10 on the outer peripheral side thereof. When the release ring 12 for releasing the connection between the metal fitting 10 and the female metal fitting 20 is slidably provided, in the flange portion 12b of the release ring 12, two outwardly projecting protruding portions 12b1 are provided. Along with the formation, a straight line or a curve having a curvature radius sufficiently larger than that of the cylindrical portion 12a is formed on the outer periphery of the position orthogonal to the protruding portion 12b1 so as to be circumscribed with the cylindrical portion 12a of the release ring 12. A cutout portion 12b2 is used.

  And in the thing shown in patent document 1, as shown to FIG. 4 (A), (B), the notch part 12b2 provided in the flange part 12b of the release ring 12 in the male metal fitting 10 in this way is the above-mentioned. The hose h can be wound compactly by being sandwiched between the hose h wound in a coil like the above, and the contact portion between the cutout portion 12b2 and the hose h in the flange portion 12b is a conventional arc shape. Since a straight line or a curved line having a sufficiently large radius of curvature increases the contact area and increases the frictional resistance and the stability when pressed by hand, the male metal fitting 10 is wound in a coil shape. It is proposed to prevent the hose h from falling off.

  However, even when the cutout portion 12b2 provided in the flange portion 12b of the release ring 12 of the male fitting 10 is sandwiched between the hose h wound in a coil shape, the hose h When a large impact is applied when a firefighter carries it in a coiled state and is transported to the fire site, etc., the hose h on the female metal fitting 20 side arranged so as to cover the male metal fitting 10 And the release ring 12 provided on the outer peripheral side of the engaging cylinder portion 11 of the male fitting 10 freely rotates on the outer periphery of the engaging cylinder portion 11 so that the projecting portion 12b1 of the flange portion 12b is removed. The hose h is wound in a coil shape, and the hose h is lifted by the overhanging portion 12b1 to come into contact with the hose h. Touch area is small, the male fitting 10 can not be solved sufficiently problems such as falling off from between the hose h which was coiled.

JP, 2009-207704, A

  According to the present invention, a tubular male fitting is provided at one end of a hose, while 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. It is an object of the present invention to solve the various problems described above in the joint fitting of the hose used for the fire hose.

  In particular, in the present invention, as shown in the above-mentioned Patent Document 1, when 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 engagement tubular portion of the male metal fitting. , A notch formed in a straight line or a curve having a sufficiently large radius of curvature is formed in the flange portion of the release ring, and the notch portion provided in the flange portion of the release ring in the male metal fitting is as described above. In the case where it is sandwiched between coiled hoses as described above, it is great for firefighters to carry the hose in a coiled state to the fire site. Even if a shock is applied and the hose on the female metal fitting side, which is placed so as to cover the male metal fitting, rises, the release ring provided on the outer peripheral side of the engaging cylinder portion of the male metal fitting is On the outer periphery of There prevented from freely rotating, in which the male fitting is an object of the present invention to solve the problems such as falling off from between the hose was coiled.

  In order to solve the above-mentioned problems, the hose fitting according to the present invention is a hose fitting for detachably connecting a male fitting and a female fitting provided at an end of the hose. Is provided with a cylindrical engagement tube portion to be inserted into the female fitting, and an engagement step portion is provided at an insertion side end of the engagement tube portion, while the engagement member is provided on the inner surface side of the female fitting. An engaging piece of a female metal fitting engaged with the engaging step is provided so as to be retractable, and is slid on the outer peripheral side of the engaging tubular portion of the male fitting and engaged with the engaging step. As a release ring for releasing, the flange part is provided on the opposite side of the engagement step part in the cylinder part that slides with the engagement step part on the outer periphery of the engagement tube part, and the notch part is provided in this flange part. Is used to prevent the release ring from rotating around the outer circumference of the engagement cylinder. Provided suppressing rotation suppressing means.

  Then, in the release ring that releases the engaging piece of the female fitting engaged with the engagement step portion by sliding on the outer peripheral side of the engaging fitting of the male fitting as described above, If a notch is provided in the flange portion on the side opposite to the step portion, and further rotation restraining means for restraining the release ring from rotating on the outer periphery of the engagement cylinder portion is provided, the flange portion of the release ring is provided as described above. Even if a large impact is applied with the notch provided so that it is sandwiched between coils of a hose that is coiled, and the hose on the female fitting that is placed over the male fitting rises, The rotation restraining means restrains the release ring from freely rotating on the outer periphery of the engagement cylinder portion.

Here, in the joint fitting of the hose according to the present invention, as the rotation suppressing means for suppressing the release ring from rotating on the outer periphery of the engaging tubular portion as described above,
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. It is possible to provide the engaging concave portion, and to engage the engaging convex portion with the engaging concave portion to suppress the release ring from rotating freely.
As the second rotation restraining means, locking member insertion grooves are provided on the outer peripheral surface of the engagement cylindrical portion and the inner peripheral surface of the release ring so as to face each other, and the locking provided so as to face each other. By inserting the locking member into the member insertion groove, it is possible to prevent the release ring from rotating freely.
As the third rotation suppressing means, a provisional locking member for releasably locking the engagement tubular portion and the release ring is provided on the engagement tubular portion and the release ring. By locking the temporary locking member, it is possible to prevent the release ring from rotating without permission,
As the fourth rotation suppressing means, a rotation suppressing member is protruded from the male fitting toward the engaging cylindrical portion so as to face a notch in the release ring, and cut by the rotation suppressing member. The rotation of the release ring can be suppressed via the notch.

  In the joint fitting of the 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 is slid on the outer peripheral side of the engaging tubular portion. As a release ring for releasing the engagement piece of the female fitting engaged with the engagement step portion, the engagement step portion of the tubular portion that slides with the engagement step portion on the outer periphery of the engagement tubular portion. Since a notch portion is provided in the flange portion by using the one provided with the flange portion on the opposite side, the notch portion provided in the flange portion of the release ring in the male fitting is similar to that in Patent Document 1 above. By sandwiching the hose between coil-shaped hoses, the hose can be wound compactly, and the contact area between the notch in the flange and the hose increases, increasing frictional resistance and making the male fitting A hose wound in a coil It is prevented from falling off.

  And in the joint fitting of the hose according to the present invention, since the release suppressing means is provided for suppressing the release ring from rotating on the outer periphery of the engaging tubular portion, the flange portion of the release ring in the male fitting is as described above. With the notch provided on the side of the coil hose sandwiched between the coils of the hose, a large impact is applied when a firefighter is carrying it to the fire site, and it is placed on the male bracket. Even if the hose on the side of the female fitting placed so as to cover is lifted, the release ring is prevented from rotating freely on the outer periphery of the engaging cylinder portion, and the hose of the male fitting wound in a coil shape is prevented. It is prevented from falling out of the space.

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 the conventional fitting fitting for a hose. In the conventional hose joint fitting shown in FIG. 1, the hose in which the male fitting and the female fitting are disconnected is folded in two near the center in the longitudinal direction, and the hose is coiled around the folding part. The state where the hose on the female metal fitting side is put on the male metal fitting is shown, (A) is a schematic front view, and (B) is a schematic cross section of the part where the hose on the female metal fitting side is put on the male metal fitting. It is a figure. The state of the male metal fitting used for the joint metal fitting of the hose shown by patent document 1 is shown, (A) is a schematic plan view of the state which the notch part in the flange part of a release ring is located above, (B) is FIG. 6C is a schematic front view of a state in which the cutout portion of the flange portion of the release ring is located above, and FIG. 6C is a schematic right side view of the state of the cutout portion in the flange portion of the release ring located above. In the hose joint fitting shown in Patent Document 1, a hose in which a male fitting and a female fitting are disconnected is folded into two in the vicinity of the center in the longitudinal direction, and the hose is wound in a coil shape around the center and released. The notch in the flange portion of the ring is sandwiched between the wound hoses so as to cover the male fitting with the female fitting-side hose, (A) is a schematic front view, (B) is a schematic cross-sectional view of a portion in which a hose on the female metal fitting side is covered on the male metal fitting. In the male fitting used for the fitting fitting of the hose according to the first embodiment of the present invention, the engaging projection is provided on the inner peripheral surface of the release ring, and the engaging projection is engaged on the outer peripheral surface of the engaging tubular portion. Is a schematic plan view showing a state in which the cutout portion of the flange portion of the release ring is located above, and (B) is a cross-sectional view taken along line XX shown in (A) above. It is a line sectional view. In the male fitting used for the fitting fitting of the hose according to the second embodiment of the present invention, the engaging recess is provided on the inner peripheral surface of the release ring, and the engaging recess is engaged with the outer peripheral surface of the engaging tubular portion. The state which provided the compound convex part is shown, (A) is a schematic plan view of the state where the notch part in the flange part of a release ring is located above, (B) is the XX line shown in said (A). FIG. In the male fitting used for the fitting fitting of the hose according to the third embodiment of the present invention, locking member insertion grooves are provided so as to face the outer peripheral surface of the engaging tubular portion and the inner peripheral surface of the release ring, respectively. The state which inserted the locking member made into the shape of a square pole in the provided locking member insertion groove is shown, (A) is a schematic plan view of the state where the notch in the flange part of a release ring is located above. , (B) are sectional views taken along line XX shown in (A) above. In the male fitting used for the fitting fitting of the hose according to the third embodiment, a modified example in which a locking member having a round bar shape is inserted into the locking member insertion groove provided facing each other is shown (A 8B is a schematic plan view showing a state in which the cutout portion of the flange portion of the release ring is located above, and FIG. 8B is a sectional view taken along line XX shown in FIG. In the male fitting used for the fitting fitting of the hose according to the fourth embodiment of the present invention, the first magnet member is provided on the outer peripheral surface of the end portion of the engaging cylinder portion on the side of the mounting cylinder 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 in the flange portion of the release ring is located above. In the above, the release ring was slid toward the attachment cylinder portion side of the engagement cylinder portion, and the second magnet member provided on the flange portion of the release ring was provided at the end portion of the engagement cylinder portion on the attachment cylinder portion side. A schematic plan view showing a state in which the release ring is magnetically attached to the first magnet member and the engagement cylinder is locked by the magnetic force, (B) engages the release ring from the state (A). Moved toward the engagement step of the tube Schematic plan view showing the a sectional view taken along line X-X shown in (C) above of (A). In the male fitting used for the fitting fitting of the hose according to the fifth embodiment of the present invention, it extends in a hook shape from the end portion of the engagement tubular portion on the side of the attachment tubular portion toward the engagement step portion of the engagement tubular portion. In the case where the rotation suppressing member is projected to the cutout portion of the release ring having a smaller projection amount than the protruding portion, the cutout portion of the release ring flange portion is located above (A). In the state, the rotation suppressing member is extended to the cutout portion of the release ring having a smaller protrusion amount than the protruding portion, and the rotation suppressing member locks the rotation of the release ring. A schematic plan view, (B) is a schematic plan view showing a state in which the release ring is moved from the state of (A) toward the engagement step portion of the engagement cylinder portion, and (C) is the above (A). ) Is a cross-sectional view taken along line XX in FIG. That.

  Hereinafter, a joint fitting for a hose according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. The hose joint fitting according to the present invention is not limited to those shown in the following embodiments, and can be appropriately modified and implemented without departing from the scope of the invention.

  Here, also in the embodiment of the present invention, similar to the conventional hose joint fitting shown in FIGS. 1 and 2, the engagement cylinder portion 11 provided on the male fitting 10 has a larger diameter on the tip side. The engaging tube portion 11 is inserted from the joining step portion 11a into the inside of the female metal fitting 20, and the engaging piece provided so as to be retractable from the inner surface of the female metal fitting 20 by the engaging step portion 11a having the larger diameter. 21 is pushed outward against the elasticity 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 above-mentioned engaging step portion 11a is inserted. The engaging piece 21 of is engaged with the engaging tubular portion 11 at the rear end of the engaging step portion 11a by being projected inward by the spring means 22 so that the male fitting 10 and the female fitting 20 are connected. In addition, the male metal fitting 10 and the female metal fitting 20 are connected to each other as described above. And so as to retain water-tightness by the packing 23 provided inside the bracket 20. Further, a rubber cushioning ring 24 is attached to the outer periphery of the female fitting 20.

  When releasing the connection between the male metal fitting 10 and the female metal fitting 20 connected as described above, the release ring 12 slidably provided on the outer peripheral side of the engagement tubular portion 11 of the male metal fitting 10 is released. The flange portion 12b is pushed toward the female fitting 20, and the tubular portion 12a of the release ring 12 is pushed into the female fitting 20. The tip of the tubular portion 12a causes the rear end of the engagement step portion 11a to move. The engaging piece 21 engaged with the engaging tube portion 11 is spread outwardly against the elastic force of the spring means 22, whereby the engaging piece 21 is engaged at the rear end of the engaging step portion 11a. The connection between the male fitting 10 and the female fitting 20 is released by detaching the fitting 11 from the fitting portion 11.

  Further, at the end portion on the opposite side to the connecting side for connecting the male fitting 10 and the female fitting 20 to each other, mounting cylinder portions 15 and 25 having irregularities on the outer periphery are provided, and the respective mounting cylinder portions 15 and 25 are The hose h is inserted into the end of each hose h, and the hose h into which the mounting cylinders 15 and 25 are thus inserted is provided with tubular wrapping cloths 16 and 26, respectively. The wrappings 16 and 26 are pressed from the outer peripheral side by the fixing cylinders 17 and 27, and 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 fixed. The male fitting 10 and the female fitting 20 are attached to the mounting cylinder portions 15 and 25 of the male fitting 10 and the female fitting 20 via the mouth wraps 16 and 26.

  Further, in the embodiment of the present invention, as the male fitting 10, the male fitting 10 and the female fitting 20 are provided on the outer peripheral side of the engaging tubular portion 11 of the male fitting 10 as shown in the above-mentioned Patent Document 1. When the release ring 12 for releasing the connection is slidably provided, the flange 12b of the release ring 12 is formed with outwardly projecting protrusions 12b1 at two positions facing each other and the protrusion is formed. A cutout portion 12b2 is formed on the outer periphery of a position orthogonal to the portion 12b1 so as to be circumscribed to the tubular portion 12a of the release ring 12 so as to be a straight line or a curve having a curvature radius sufficiently larger than that of the tubular portion. I try to use things. As described above, in forming the overhanging portion 12b1 and the cutout portion 12b2 in the flange portion 12b of the release ring 12, as in the case described in Patent Document 1, the overhanging portion of the flange portion 12b of the release ring 12 is formed. The shapes of the portion 12b1 and the cutout portion 12b2 are not particularly limited, and the protruding portion 12b1 manually moves the release ring 12 toward the female metal fitting 20 in order to release the connected state of the female metal fitting 20 and the male metal fitting 10. It suffices that the cutout 19 has a size and a shape such that it can be pushed, and the notch 19 is preferably a straight line circumscribing the tubular portion 12a of the release ring 12, but the cutout 19 has a curvature larger than that of the protruding portion 12b1. It may be a curve close to a straight line having a sufficiently large radius.

  Further, in the embodiment of the present invention, the rotation suppressing means 30 for suppressing the rotation of the release ring 12 of the male fitting 10 on the outer periphery of the engagement cylinder portion 11 is provided.

  Next, a specific embodiment of the rotation restraining means 30 for restraining the release ring 12 of the male fitting 10 from rotating on the outer periphery of the engaging cylinder portion 11 will be described.

(Embodiment 1)
In the first embodiment, as shown in FIGS. 5 (A) and 5 (B), the rotation suppressing means 30 are directed inwardly at the portions of the inner peripheral surface of the release ring 12 of the male fitting 10 that face each other. And a pair of engaging projections 31 are provided on the outer peripheral surface of the engaging cylindrical portion 11 facing each other, and a pair of engaging projections 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, 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 tubular portion 11 to release the engaging concave portion 32. The ring 12 is prevented from rotating freely on the outer periphery of the engagement cylinder portion 11.

  Then, when the pair of engaging convex portions 31 provided on the inner peripheral surface of the release ring 12 are engaged with the pair of engaging concave portions 32 provided on the outer peripheral surface of the engaging tubular portion 11 as described above, as described above. The hose h in which the connection between the male fitting 10 and the female fitting 20 was released was wound in a coil shape, and the notch 12b2 provided in the flange portion 12b of the release ring 12 in the male fitting 10 was wound in a coil shape. When the hose h wound in this way is to be sandwiched between the hoses h, a large impact is applied when the fireman carries the hose h to the fire site, and the hose h is placed on the male fitting 10. Even if the hose h on the side of the female fitting 20 that has been placed rises, the release ring 12 provided on the outer peripheral side of the engaging tubular portion 11 of the male fitting 10 freely rotates on the outer periphery of the engaging tubular portion 11. Is prevented, and the male fitting 10 To or dropped out during the hose h which was coiled is suppressed.

  In the first embodiment, a pair of engaging projections 31 are provided inwardly at the opposite portions of the inner peripheral surface of the release ring 12, and the outer peripheral surface of the engaging tubular portion 11 is provided. Although a pair of engagement recesses 32 that engage with the pair of engagement projections 31 are provided at the opposite portions, respectively, the engagement projections 31 provided on the inner peripheral surface of the release ring 12, It suffices to provide only one engaging concave portion 32 that engages with the engaging convex portion 31 provided on the outer peripheral surface of the engaging tubular portion 11.

  Further, as another embodiment of the engaging convex portion 31, a threaded hole is formed in the release ring 12, and a bolt or pin is screwed into the threaded hole while the tip of the bolt or pin is attached to the inner peripheral surface of the release ring 12. It is also preferable to use a shape in which the ball plunger is projected from, or a shape in which the tip portion of the ball plunger is similarly projected.

(Embodiment 2)
In the second embodiment, as shown in FIGS. 6 (A) and 6 (B), as the rotation suppressing means 30, the rotation direction is directed outward to portions of the inner peripheral surface of the release ring 12 of the male fitting 10 that face each other. And a pair of engaging recesses 32 provided on the inner peripheral surface of the release ring 12 at opposite portions of the outer peripheral surface of the engaging cylindrical portion 11. A pair of engagement protrusions 31 are provided, and a pair of engagement protrusions 31 provided on the outer peripheral surface of the engagement tubular portion 11 are engaged with a pair of engagement 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 engagement cylinder portion 11.

  Even when the pair of engaging concave portions 32 provided on the inner peripheral surface of the release ring 12 are engaged with the pair of engaging convex portions 31 provided on the outer peripheral surface of the engaging tubular portion 11 as described above, Similarly to the case of the first embodiment, the hose h in which the connection between the male fitting 10 and the female fitting 20 is released is wound into a coil, and the notch provided in the flange portion 12b of the release ring 12 in the male fitting 10 is cut. In the case where the portion 12b2 is sandwiched between the hoses h wound in a coil shape, a great impact is applied when the fireman carries the hose h wound in this way and transports it to the fire site. Even if the hose h on the female metal fitting 20 side, which is arranged so as to cover the male metal fitting 10, is lifted up, the release ring 12 provided on the outer peripheral side of the engaging cylinder portion 11 of the male metal fitting 10 has the above-mentioned engagement. Freely on the outer circumference of the cylinder 11. To rolling is prevented, the male fitting 10 is to be inhibited from or fall off from between the hose h which was coiled.

  In the second embodiment, a pair of engaging recesses 32 are provided outwardly at opposite portions of the inner peripheral surface of the release ring 12, and the outer peripheral surface of the engaging cylindrical portion 11 is relatively opposed to each other. Although the engaging projections 31 that engage with the pair of engaging recesses 32 are provided in the facing portions, respectively, the engaging recesses 32 provided on the inner peripheral surface of the release ring 12 and the engaging tubular portion. It is also possible to provide only one engaging convex portion 31 that engages with the engaging concave portion 32 provided on the outer peripheral surface of 11.

(Embodiment 3)
In the third embodiment, as shown in FIGS. 7 (A) and 7 (B), the rotation restraining means 30 is directed outwards at portions of the inner peripheral surface of the release ring 12 of the male fitting 10 that face each other. And a pair of locking member insertion grooves 33 are provided on the inner peripheral surface of the release ring 12 so as to face inwardly at opposite portions of the outer peripheral surface of the engagement tubular portion 11. A pair of locking member insertion grooves 33 are provided so as to face the locking member insertion grooves 33, and a pair of locking member insertion grooves 33 provided on the inner peripheral surface of the release ring 12 and the outer peripheral surface of the engagement tubular portion 11 are provided. The locking members 34 each having a quadrangular prism shape are inserted into a pair of space portions formed so as to face the pair of provided locking member insertion grooves 33, and the release ring 12 causes the outer periphery of the engagement tubular portion 11 to be inserted. It is trying to suppress the free rotation in.

  In this way, 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 engagement tubular portion 11 are formed to face each other. Even when the locking members 34 each having a rectangular prism shape are inserted into the pair of space portions, the connection between the male fitting 10 and the female fitting 20 is released as in the case of the first and second embodiments. In the case where the hose h thus wound is wound in a coil shape and the cutout portion 12b2 provided in the flange portion 12b of the release ring 12 in the male fitting 10 is sandwiched between the hose h wound in a coil shape. When a firefighter carries the hose h wound in this way and conveys it to a fire site, a large shock is applied, and the hose h on the female metal fitting 20 side arranged so as to cover the male metal fitting 10 floats up. Even if you put it in the male bracket 10. The release ring 12 provided on the outer peripheral side of the engaging cylinder portion 11 is prevented from rotating arbitrarily on the outer periphery of the engaging cylinder portion 11, and the male metal fitting 10 is wound between the hose h wound in a coil shape. Will be suppressed from falling off.

  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 engagement tubular portion 11 face each other. The locking members 34 each having a rectangular prism shape are inserted into the pair of space portions formed by the above, but the locking member insertion groove 33 and the engaging tubular portion 11 provided on the inner peripheral surface of the release ring 12 are formed. The locking member insertion groove 33 provided on the outer peripheral surface of the above may be opposed to each other, and one locking member 34 in the form of a quadrangular prism may be inserted into one space portion.

  In addition, 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 engagement tubular portion 11 face each other. The locking members 34 in the shape of a quadrangular prism are inserted into the pair of space portions formed by the above, but the locking member insertion groove 33 and the engaging tubular portion provided on the inner peripheral surface of the release ring 12 are formed. The shape of the locking member 34 to be inserted into the space portion formed to face the locking member insertion groove 33 provided on the outer peripheral surface of 11 is not particularly limited, and the release ring 12 is the outer periphery of the engagement tubular portion 11. 8A and 8B, 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 may be provided. 33 and a pair of locking member insertion grooves 33 provided on the outer peripheral surface of the engaging cylinder portion 11 face each other. It may be to insert the locking member 34 becomes round bar to the pair of the space portion formed Te.

(Embodiment 4)
In the fourth embodiment, as shown in FIGS. 9A, 9B, and 9C, as the rotation suppressing means 30, in the male fitting 10, the hose h in the engaging cylinder portion 11 is attached. A pair of first locking members, which are examples of temporary locking members that releasably lock toward the flange portions 12b of the release ring 12 at the opposing portions on the outer peripheral surfaces of the ends on the side of the tubular portion 15, respectively. The magnet member 35a is provided, and the flange portion 12b of the release ring 12 faces the 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 the positions where

  Then, the male fitting 10 is separated from the female fitting 20, and as shown in FIG. 9 (A), the release ring 12 is attached to the engaging cylinder portion 11 where the first magnet member 35a is provided. The second magnet member 35b provided so as to face the first magnet member 35a on the flange portion 12b of the release ring 12 is slid to the side of the first magnet member. The release ring 12 is magnetically attached to the engagement tubular portion 35 so as to be locked to the engagement tubular portion 11 by magnetic force.

  Here, as described above, the first magnet member 35a provided on the engagement cylinder portion 11 and the second magnet member 35b provided on the flange portion 12b of the release ring 12 are magnetically attached to each other to be engaged. When the release ring 12 is locked to the tubular portion 11 by magnetic force, the hose h in which the connection between the male fitting 10 and the female fitting 20 is released is coiled, as in the case of the first to third embodiments. In the case where the cutout portion 12b2 provided in the flange portion 12b of the release ring 12 of the male fitting 10 is wound between the hoses h wound in a coil shape, it is wound in this way. Even when the hose h is carried by a fireman to a fire site, a large impact is applied, and even if the hose h on the female metal fitting 20 side arranged so as to cover the male metal fitting 10 floats up, the male metal fitting 10 Engagement tube The release ring 12 provided on the outer peripheral side of 11 is prevented from rotating freely on the outer periphery of the engagement cylinder portion 11, and the male fitting 10 is dropped from between the hose h wound in a coil shape. Will be suppressed.

  Further, in the fourth embodiment, when the male fitting 10 and the female fitting 20 are in the connected state, when releasing the connection between the male fitting 10 and the female fitting 20, the flange portion of the release ring 12 is used. As shown in FIG. 9B, the release ring 12 is removed from the state in which the second magnet member 35b provided on 12b is magnetically attached to the first magnet member 35a provided on the engagement tube portion 11. 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 cylinder portion 11 and released as described above. The tubular portion 12a of the ring 12 can be pushed into the female fitting 20 to release the connection between the male fitting 10 and the female fitting 20.

  Here, in the fourth embodiment, the position and the number of the first magnet member 35a provided on the engagement cylinder portion 11 and the second magnet member 35b provided on the release ring 12 are not particularly limited, and the engagement cylinder portion 11 is not limited. It suffices that the release ring 12 and the release ring 12 can be locked with each other by magnetic force, and although not shown, a mounting cylinder part for attaching the hose h in the engagement cylinder part 11 to the first magnet member 35a. The second magnet member 35b is provided on the entire circumference of the outer peripheral surface of the end portion on the 15th side, and is opposed to the second magnet member 35b on the entire circumference of the flange portion 12b of the release ring 12, or the first magnet member 35a. Can be provided on the outer peripheral surface of the engaging cylinder portion 11, and the second magnet member 35b can be provided on the inner peripheral surface of the release ring 12 so as to face the outer peripheral surface.

  Further, a hook-and-loop fastener, a button, a hook, or the like, which acts as a temporary locking means similarly to the magnet member 35b, can be adopted.

(Embodiment 5)
In the fifth embodiment, as shown in FIGS. 10 (A), 10 (B), and 10 (C), the hose h in the engagement cylinder portion 11 of the male fitting 10 is attached as the rotation suppressing means 30. A pair of rotation restraining members 36 extending in a hook shape toward the engaging stepped portions 11a of the engaging tubular portion 11 are provided at opposite portions of the end portion on the tubular portion 15 side, respectively, and the release ring 12 is provided. The protrusions 12b1 and 12b2 of which the protrusion amount is smaller than that of the protrusion 12b1 are protruded so as to oppose each other.

  Here, in the fifth embodiment, as shown in FIG. 10 (A), from the state in which the release ring 12 is located on the mounting cylinder portion 15 side of the engagement cylinder portion 11 from FIG. 10 (B). As shown in FIG. 7, even when the release ring 12 is guided to the engagement stepped portion 11 a of the engagement tubular portion 11, the pair of rotation suppressing members 36 includes the cutout portions of the release ring 12. 12b2 so that the release ring 12 is moved from the position of the engagement cylinder 11 on the side of the attachment cylinder 15 to the position of the engagement step 11a of the engagement cylinder 11 without permission. Also in the above, the notch portions 12b2 of the release ring 12 are pressed by the pair of rotation restraining members 36, so that the release ring 12 is restrained from rotating freely on the outer periphery of the engagement tubular portion 11. I have to.

  Then, in this way, a pair of rotation restraints extending in a hook shape from the end portion of the engagement tubular portion 11 on the side of the attachment tubular portion 15 to which the hose h is attached toward the engagement stepped portion 11a of the engagement tubular portion 11. Even when the member 36 is made to project so as to face each notch 12b2 of which the projecting amount is smaller than that of the projecting portion 12b1 of the release ring 12, the same as in the case of the first to fourth embodiments. The hose h in which the connection between the male fitting 10 and the female fitting 20 is released is wound in a coil shape, and the cutout portion 12b2 provided in the flange portion 12b of the release ring 12 in the male fitting 10 is wound in a coil shape. When the hose h wound in this way is to be sandwiched between the hose h, the fireman carries a large impact when the hose h is transported to the fire site, and is put on the male fitting 10. So Even if the hose h on the side of the female fitting 20 that has been placed rises, the release ring 12 provided on the outer peripheral side of the engaging tubular portion 11 of the male fitting 10 freely rotates on the outer periphery of the engaging tubular portion 11. This prevents the male fitting 10 from falling out from between the hoses h wound in a coil shape.

  In addition, in the fifth embodiment, hooks are hooked toward the engaging stepped portions 11a of the engaging tubular portion 11 at the facing portions of the end portions of the engaging tubular portion 11 on the mounting tubular portion 15 side to which the hose h is attached. The pair of rotation suppressing members 36 extended in the shape of a mold are made to project to the respective cutout portions 12b2 of the release ring 12 which have a smaller projection amount than the projecting portions 12b1. Only one rotation suppressing member 36 is provided, and this one rotation suppressing member 36 is made to project to one cutout portion 12b2 of the release ring 12 where the projection amount is smaller than the protruding portion 12b1. Good.

10: Male fitting 11: Engagement cylinder part 11a: Engagement step part 12: Release ring 12a: Cylindrical part 12b: Flange part 12b1: Overhang part 12b2: Notch part 15: Mounting cylinder part 16: Spout cloth 17: Fixed Cylindrical body 19: Notch portion 20: Female fitting 21: Engaging piece 22: Spring means 23: Packing 24: Buffer ring 25: Mounting tubular portion 26: Wrapping cloth 27: Fixing tubular body 30: Rotation suppressing means 31: Engagement projection 32: Engagement recess 33: Engagement member insertion groove 34: Engagement member 35a: First magnet member (temporary engagement member)
35b: Second magnet member (temporary locking member)
36: Rotation suppressing member h: Hose

Claims (5)

In a fitting fitting for a hose that detachably connects the male fitting and the female fitting provided at the end of the hose,
The male fitting is provided with a tubular engaging tubular portion to be inserted into the female fitting,
While an engaging step is provided at the insertion side end of this engaging cylinder,
An engaging piece engageable with the engaging step is provided on the inner surface side of the female metal fitting so as to be retractable,
As a release ring for releasing the engagement piece of the female metal fitting that is slid on the outer peripheral side of the engagement tubular portion of the male fitting and engaged with the engagement step portion,
A flange part is provided on the opposite side of the engagement step part in the cylinder part that slides between the engagement step part and the outer periphery of the engagement tube part,
Use this flange with a notch,
A fitting fitting for a hose, which is provided with rotation suppressing means for suppressing the rotation of the release ring on the outer periphery of the engagement cylinder portion.   The joint fitting for a hose according to claim 1, wherein, as the rotation suppressing means, an engaging convex portion is provided on one of an outer peripheral surface of the engaging cylindrical portion and an inner peripheral surface of the release ring, and the other A fitting fitting for a hose, characterized in that an engaging recessed portion that is engaged with the engaging protruding portion is provided on the.   The joint fitting for a hose according to claim 1, wherein, as the rotation suppressing means, locking member insertion grooves are provided so as to face the outer peripheral surface of the engagement tubular portion and the inner peripheral surface of the release ring, respectively. A fitting fitting for a hose, wherein a locking member is inserted into the locking member insertion groove provided facing each other.   The joint fitting for a hose according to claim 1, wherein, as the rotation suppressing means, a temporary locking member that releasably locks the engagement tube portion and the release ring to the engagement tube portion and the release ring. Hose fittings characterized by the provision of.   The joint fitting for a hose according to claim 1, wherein, as the rotation suppressing means, a rotation suppressing member faces the cutout portion of the release ring from the male fitting toward the engaging cylinder portion. A fitting fitting for a hose, characterized in that the rotation suppressing member suppresses the rotation of the release ring through the cutout portion.

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