JP6836776B2 - Hose connector - Google Patents

Description

The present invention relates to a hose connector for connecting a hose to a faucet.

There are known hose connectors that can connect a hose to a faucet. Japanese Unexamined Patent Publication No. 56-105191 discloses a hose joint having a fixing screw. This hose joint is fixed to the faucet by tightening a plurality of screws distributed in the circumferential direction. It takes time and effort to tighten the screws. Furthermore, it takes a lot of time and effort to tighten a plurality of screws evenly.

On the other hand, a hose connection portion that does not require tightening of a plurality of screws as described above has been proposed. Japanese Patent Application Laid-Open No. 2007-528458 has a fixture having a threaded portion formed at a lower portion, a connecting tool fitted inside the fixture, and a fastening portion having a threaded portion to be fastened to the threaded portion of the fixing portion. And, a coupling for faucet connection having.

Japanese Patent Application Laid-Open No. 56-105191 Special Table 2007-528458

The present inventor has diligently studied a hose connector having excellent convenience. As a result, we have come up with a hose connector that is easy to install and has other conveniences.

An object of the present invention is to provide a hose connector having excellent convenience.

Preferred hose connectors have upper and lower members that can be detachably connected to each other. The upper member has a contact portion capable of contacting the discharge pipe of the faucet from above and an upper engaging portion. The lower member has a discharge pipe insertion portion having packing, a lower engaging portion capable of engaging with the upper engaging portion, and a hose connecting portion. The discharge pipe that extends in a bent manner can be sandwiched by the connected state in which the upper engaging portion and the lower engaging portion are engaged with each other. The connection state is formed by pressing one of the upper member and the lower member against the other.

Preferably, the upper engaging portion has a missing portion in which a part is missing in the circumferential direction.

Preferably, the missing portion is provided at two positions in the circumferential direction, so that the upper engaging portion is divided into a first engaging portion and a second engaging portion. Preferably, the upper member has a connecting portion that connects the first engaging portion and the second engaging portion. Preferably, the connecting portion has the abutting portion.

Preferably, the packing has a cylindrical portion that can be brought into close contact with the outer surface of the discharge pipe. Preferably, a space is provided on the outside of the cylindrical portion.

Preferably, the upper member can be attached to the discharge pipe from above.

Other preferred hose connectors have upper and lower members that can be detachably connected to each other. The upper member has a contact portion that can come into contact with the discharge pipe of the faucet from above and an upper engaging portion. The lower member has a discharge pipe insertion portion having packing, a lower engaging portion capable of engaging with the upper engaging portion, and a hose connecting portion. The discharge pipe that extends in a bent manner can be sandwiched by the connected state in which the upper engaging portion and the lower engaging portion are engaged with each other. In the connected state, the upper member does not apply a compressive force to the packing.

Preferably, the lower engaging portion is configured by a ring engaging body, which is an endless annular member. Preferably, the ring engaging body has an engaging protrusion. Preferably, the upper member has a recess as the upper engaging portion and a contact surface. Preferably, the lower member has a through hole. Preferably, when the ring engaging body is in the normally mounted state, the engaging protruding portion passes through the through hole and protrudes into the lower member. Preferably, the contact surface abuts on the engaging protrusion projecting inside the lower member by pressing one of the upper member and the lower member against the other, and the ring. It is configured to expand and deform the engaging body. Preferably, the engaging protrusion is inserted into the recess due to the reduced diameter deformation of the ring engaging body after the expansion deformation.

A hose connector with excellent convenience can be obtained.

FIG. 1 is a perspective view showing a state in which the hose connector according to the first embodiment is attached to the faucet. FIG. 2 is a cross-sectional view of FIG. FIG. 3 is an exploded perspective view of FIG. FIG. 4 is a perspective view in which FIG. 3 is further disassembled. 5 (a) is a perspective view of the upper member according to the first embodiment, and FIGS. 5 (b) and 5 (c) are perspective views of the upper member as viewed from different angles. .. 6 (a) is a plan view of the upper member according to the first embodiment, FIG. 6 (b) is a front view of the upper member, and FIG. 6 (c) is a bottom view of the upper member. .. 7 (a) is a side view of the upper member according to the first embodiment, FIG. 7 (b) is a cross-sectional view taken along the line AA of FIG. 6 (b), and FIG. 7 (c) is a cross-sectional view. Is a rear view of this upper member. FIG. 8 is a perspective view showing a state in which the hose connector according to the second embodiment is attached to the faucet. FIG. 9 is a cross-sectional view of FIG. FIG. 10 is an exploded perspective view of FIG. FIG. 11 is a perspective view in which FIG. 10 is further disassembled. 12 (a) is a perspective view of the upper member according to the second embodiment, and FIGS. 12 (b) and 12 (c) are perspective views of the upper member as viewed from different angles. .. 13 (a) is a plan view of the upper member according to the second embodiment, FIG. 13 (b) is a front view of the upper member, and FIG. 13 (c) is a bottom view of the upper member. .. 14 (a) is a side view of the upper member according to the second embodiment, FIG. 14 (b) is a cross-sectional view taken along the line AA of FIG. 13 (b), and FIG. 14 (c) is a cross-sectional view. Is a rear view of this upper member FIG. 15 is a perspective view showing a state in which the hose connector according to the third embodiment is attached to the faucet. FIG. 16 is a cross-sectional view of FIG. FIG. 17 is a perspective view showing a state in which the hose connector according to the fourth embodiment is attached to the faucet. FIG. 18 is a cross-sectional view of FIG. FIG. 19 is an exploded perspective view of the hose connector of FIG. FIG. 20 is a perspective view in which FIG. 19 is further decomposed. 21 (a) is a perspective view of the upper member according to the fourth embodiment, and FIGS. 21 (b) and 21 (c) are perspective views of the upper member as viewed from different angles. .. 22 (a) is a front view of the upper member according to the fourth embodiment, FIG. 22 (b) is a cross-sectional view taken along the line AA of FIG. 22 (a), and FIG. 22 (c). ) Is a rear view of the upper member. 23 (a) is a perspective view of the ring engaging body, FIG. 23 (b) is a perspective view of the ring engaging body viewed from another viewpoint, and FIG. 23 (c) is a plan view of the ring engaging body. 23 (d) is a bottom view of the ring engaging body. 24 (a) and 24 (b) are cross-sectional views for explaining the connection between the upper member and the lower member in the fourth embodiment.

Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings as appropriate.

In the present application, words such as "upper", "upper", "lower", and "lower" are used based on a typical faucet posture. In addition, words such as "right", "right side", "left", and "left side" are used based on the viewpoint of the user in this typical situation. If the faucet posture is atypical, these words are interpreted in line with that posture.

FIG. 1 is a perspective view showing a state in which the hose connector 100 according to the first embodiment is attached to the faucet f1. FIG. 2 is a cross-sectional view of FIG. FIG. 3 is an exploded perspective view of FIG. FIG. 4 is an exploded perspective view in which the lower member of FIG. 3 is further disassembled.

The hose connector 100 has an upper member 200 and a lower member 300. The upper member 200 and the lower member 300 are detachably connected to each other. Both are connected with the upper member 200 inserted inside the lower member 300.

The faucet f1 has a faucet main body f2, a discharge pipe f3, and an operation unit f4. Further, the faucet f1 has a built-in valve (not shown). By operating (rotating) the operation unit f4, it is possible to switch the water discharge stop water and adjust the water discharge amount.

In the present embodiment, in the faucet f1, the discharge pipe f3 is fixed to the faucet main body f2. In those skilled in the art, this faucet f1 is referred to as a horizontal faucet. In this faucet f1, the boundary between the faucet main body f2 and the discharge pipe f3 is unknown. For convenience, the portion downstream of the valve can be considered as the discharge pipe f3.

The upper member 200 is a member integrally molded as a whole. The upper member 200 has a shape in which a part of the dome-shaped structure in the circumferential direction is missing as a whole. Details of the upper member 200 will be described later.

As shown in FIG. 3, the lower member 300 has a discharge pipe insertion portion 302, a lower engaging portion 304, and a hose connecting portion 306. The discharge pipe insertion portion 302 has a cylindrical inner surface. The lower end of the discharge pipe f3 is inserted into the discharge pipe insertion portion 302. A hose (connector attached to the end of the hose) is connected to the hose connection portion 306.

As shown in FIG. 4, the discharge pipe insertion portion 302 has a slide ring 308, a main body portion 310, and a packing 312. The main body 310 has openings 314 at a plurality of locations (three locations) in the circumferential direction.

The lower engaging portion 304 has an engaging elastic body 316. The engaging elastic bodies 316 are provided at a plurality of locations (three locations) in the circumferential direction. The engaging elastic body 316 has a base portion 317 and an engaging claw 318 extending obliquely downward from the upper end of the base portion 317. An engaging elastic body 316 is arranged in each of the openings 314. In the unpressed natural state, the engaging claw 318 projects radially inward from the opening 314.

The packing 312 has a flange portion 320 and a cylindrical portion 322. The flange portion 320 extends radially outward from the upper end of the cylindrical portion 322. The inner diameter of the cylindrical portion 322 is set to be smaller than the outer diameter of the discharge pipe f3 at the portion inserted into the cylindrical portion 322.

As shown in FIG. 4, the hose connection portion 306 is composed of a nipple member 330. The nipple member 330 has a hose connecting portion 306 and a threaded portion 332. The threaded portion 332 is a male thread. On the other hand, as shown in FIG. 2, the main body portion 310 has a screw portion 340. The threaded portion 340 is a female thread. The threaded portion 332 and the threaded portion 340 are screwed together.

The packing 312 is fixed by utilizing the screw connection between the screw portion 332 and the screw portion 340. Specifically, the flange portion 320 of the packing 312 is sandwiched between the inner extending portion 342 of the main body portion 310 and the upper end surface 344 of the nipple member 330. As the screwing amount of the screw connection is increased, the inner extending portion 342 and the upper end surface 344 come closer to each other, and the flange portion 320 is strongly sandwiched. With this configuration, the packing 312 is easily and securely fixed.

As shown in FIG. 3, the discharge pipe insertion portion 302 of the lower member 300 has a missing portion 350 in which a part of the lower member 300 is missing in the circumferential direction. The missing portion 350 is composed of a missing portion 352 of the slide ring 308 and a missing portion 354 of the main body 310 (see FIG. 4).

FIG. 5A is a perspective view of the upper member 200 as viewed from diagonally above to the right. FIG. 5B is a perspective view of the upper member 200 as viewed from diagonally lower right. FIG. 5C is a perspective view of the upper member 200 as viewed from diagonally lower left. FIG. 6A is a plan view of the upper member 200. FIG. 6B is a front view of the upper member 200. FIG. 6C is a bottom view of the upper member 200. FIG. 7A is a right side view of the upper member 200. FIG. 7 (b) is a cross-sectional view taken along the line AA of FIG. 6 (b). FIG. 7C is a rear view of the upper member 200.

The upper member 200 has a side wall portion 202 and an upper wall portion 204. The upper member 200 is open downward. The side wall portion 202 has a substantially cylindrical shape, but a part thereof in the circumferential direction is missing. That is, the side wall portion 202 has a missing portion 206.

The upper member 200 has a contact portion 210 that can come into contact with the discharge pipe f3 from above (see FIG. 2). In the upper wall portion 204 of the upper member 200, the portion located above the missing portion 206 is the contact portion 210.

The upper member 200 has an upper engaging portion 220. The upper engaging portion 220 is provided on the side wall portion 202. The upper engaging portion 220 is a recess. More specifically, the upper engaging portion 220 is a groove provided along the circumferential direction. However, in the region where the missing portion 206 exists, the upper engaging portion 220 (groove) is interrupted. The upper engaging portion 220 can engage with the engaging claw 318 of the engaging elastic body 316.

[Connection status and mounting status]
In the present application, the state in which the upper member 200 and the lower member 300 are engaged with each other is also referred to as a connected state. As shown in FIG. 2, a bent discharge pipe f3 is sandwiched by this connection state. By this sandwiching, the hose connector 100 is fixed to the discharge pipe f3. As long as the connection state is maintained, the hose connector 100 will not come off from the discharge pipe f3. In the present application, "sandwiching the discharge pipe f3" means that the discharge pipe f3 is held in a state where it cannot be pulled out.

The connected state is formed by pressing one of the upper member 200 and the lower member 300 against the other. The upper member 200 may be pressed against the lower member 300, or the lower member 300 may be pressed against the upper member 200. The word "pressing" takes into consideration the force for deforming a member (a member that is temporarily deformed in the process until the engagement is completed) such as the engaging elastic body 316 described later. Is. The engagement for forming the connected state is a concave-convex engagement that occurs when the positional relationship between the upper member 200 and the lower member 300 becomes a predetermined positional relationship. One of the upper member 200 and the lower member 300 has a convex portion that regresses due to elastic deformation due to compression, and the other is engaged with the protruding convex portion while allowing the convex portion to protrude in the predetermined positional relationship. It suffices to have a matching recess. The connection state is formed with one touch. Hereinafter, this engagement is also referred to as a one-touch connection. Forming a connected state is very easy.

The engagement between the upper member 200 and the lower member 300 is an engagement due to elastic deformation. In the present embodiment, the engaging elastic body 316 of the lower member 300 is elastically deformed. The elastically deformable portion may be at least a part of the lower member 300 or at least a part of the upper member 200. One-touch connection is achieved by engagement by elastic deformation.

As a method of attaching the hose connector 100, the following procedure A and procedure B are possible. According to steps A and B, the mounting state is completed at the same time as the connection state is completed.
(Procedure A) The upper member 200 is put on the discharge pipe f3 from above, and then the lower member 300 is pressed against the upper member 200 from below while inserting the discharge pipe f3 into the discharge pipe insertion portion 302.
(Procedure B) The lower member 300 is attached to the discharge pipe f3 from below, and then the upper member 200 is pressed against the lower member 300 from above.

In either procedure, the connection state is completed by engaging the upper engaging portion 220 (recess) with the lower engaging portion 304 (engaging elastic body 316). In the process in which either one of the upper member 200 and the lower member 300 is pressed against the other, the lower end portion of the upper member 200 presses the engaging claw 318. Since the engaging claw 318 extends diagonally downward, it is easily pressed by the upper member 200 that moves from top to bottom and regresses outward in the radial direction. When the upper engaging portion 220 (recess) of the upper member 200 reaches the position of the engaging claw 318, the engaging claw 318 is released from the pressing and protrudes inside the upper engaging portion 220 (recess). As a result, the engaging claw 318 and the upper engaging portion 220 are engaged. In other words, the upper engaging portion 220 and the lower engaging portion 304 engage. In this way, the connected state can be formed only by pressing one of the upper member 200 and the lower member 300 against the other.

The slide ring 308 has a locking function for holding the engagement between the upper engaging portion 220 (recess) and the lower engaging portion 304 (engaging claw 318). The slide ring 308 can slide and move in the vertical direction with respect to the main body 310. In the cross-sectional view of FIG. 2, the slide ring 308 is moved upward with respect to the main body 310. The position of the slide ring 308 is set as the lock position. In this state, since the base portion 317 of the engaging elastic body 316 is in contact with the inner surface (first inner surface D1) of the slide ring 308, the engaging claw 318 is unlikely to regress. Therefore, the above-mentioned locking mechanism works. On the other hand, although not shown, when the slide ring 308 is slid downward, the second inner surface D2 is arranged on the outside of the engaging elastic body 316. The position of the slide ring 308 at this time is set as the release position. The second inner surface D2 is located radially outside the first inner surface D1. Therefore, a gap is secured between the outside of the base 317 and the second inner surface D2. Due to this gap, the lock mechanism is released, and the engaging claw 318 is likely to regress. Therefore, the connection state can be easily released.

Although not adopted in this embodiment, a slide restricting member for restricting the slide movement of the slide ring 308 may be further provided. This slide restricting member contributes to the maintenance of the lock mechanism and, by extension, the maintenance of the mounted state. An example of this slide restricting member is a ring member arranged in the gap g1 (see FIG. 2) between the lower end of the slide ring 308 and the flange portion of the main body 310. This ring member is, for example, a member that is easily elastically deformed, and is fitted into the gap g1. When releasing the lock mechanism, the ring member may be removed. Another example of this slide restricting member is an urging member that urges the slide ring 308 upward (in the direction from the release position to the lock position). When releasing the lock mechanism, an external force exceeding this urging force may be applied to the slide ring 308, and the slide ring 308 may be moved to the release position.

With the hose connector 100, the above-mentioned two mounting methods are possible, which is highly convenient. In particular, procedure B can be performed with one hand. Installation of the hose connector 100 is very easy. The ease of installation is clear when compared to conventional hose connectors that tighten screws located at multiple locations in the circumferential direction.

In the present application, the state in which the hose connector 100 is attached to the discharge pipe f3 is also referred to as an attached state. In the mounted state, the upper member 200 and the lower member 300 in the connected state sandwich the discharge pipe f3.

In the mounted state, the missing portion 206 of the upper member 200 and the missing portion 350 of the lower member 300 overlap each other, and the discharge pipe f3 is inserted through the overlapping missing portion. As shown in FIG. 2, in the mounted state, the lower end portion of the discharge pipe f3 bites into the cylindrical portion 322 of the packing 312 from the inside. The packing 312 is in close contact with the outer peripheral surface of the discharge pipe f3. Watertightness is achieved by this close contact.

In the mounted state, the packing 312 is in close contact with the discharge pipe f3 as long as the connected state is maintained. Due to this close contact, watertightness is maintained.

In the mounted state, the contact position c1 of the contact portion 210 is located on the water supply side (right side in FIG. 2) with respect to the center line CL1 of the lower end portion of the discharge pipe f3. Therefore, the certainty of fixing the hose connector 100 to the discharge pipe f3 is improved. The center line CL1 is a center line of a cylindrical portion extending straight at the lower end portion of the discharge pipe f3.

In the mounted state, there may be play between the hose connector 100 and the discharge pipe f3. That is, the hose connector 100 in the attached state may move with respect to the discharge pipe f3 as long as the discharge pipe f3 is not pulled out. When there is this play, it is preferable that the contact pressure (watertightness) between the packing 312 and the discharge pipe f3 is maintained in the entire range of the play.

FIG. 8 is a perspective view showing a state in which the hose connector 400 according to the second embodiment is attached to the faucet f10. FIG. 9 is a cross-sectional view of FIG. FIG. 10 is an exploded perspective view of FIG. FIG. 11 is an exploded perspective view in which the lower member of FIG. 10 is further disassembled.

The hose connector 400 has an upper member 500 and a lower member 600. The upper member 500 and the lower member 600 are detachably connected to each other.

The faucet f10 has a faucet main body f20, a discharge pipe f30, and an operation unit f40. Further, the faucet f10 has a built-in valve (not shown). By operating (rotating) the operation unit f40, it is possible to switch the water discharge stop water and adjust the water discharge amount.

In the present embodiment, in the faucet f10, the discharge pipe f30 can rotate with respect to the faucet main body f20. In those skilled in the art, this faucet f10 is referred to as a universal faucet. In this faucet f10, the discharge pipe f30 extends diagonally. Therefore, in the mounted state, the upper member 500 is located diagonally above the lower member 600 (see FIG. 9).

As shown in FIG. 11, the upper member 500 is a member integrally molded as a whole. The upper member 500 is a substantially strip-shaped member that is bent in a U shape and extends as a whole. Details of the upper member 500 will be described later.

The lower member 600 has a discharge pipe insertion portion 602, a lower engagement portion 604, and a hose connection portion 606. The discharge pipe insertion portion 602 has a cylindrical inner surface. The lower end of the discharge pipe f30 is inserted into the discharge pipe insertion portion 602. A hose (connector attached to the end of the hose) is connected to the hose connection portion 606.

As shown in FIG. 11, the discharge pipe insertion portion 602 has a slide ring 608, a main body portion 610, and a packing 612. The main body 610 has openings 614 at a plurality of locations (4 locations) in the circumferential direction.

The lower engaging portion 604 has an engaging elastic body 616. The engaging elastic bodies 616 are provided at a plurality of locations (4 locations) in the circumferential direction. The engaging elastic body 616 has a base portion 617 and an engaging claw 618 extending obliquely downward from the upper end of the base portion 617. An engaging elastic body 616 is arranged in each of the openings 614. In the unpressed natural state, the engaging claw 618 projects radially inward from the opening 614.

The packing 612 has a flange portion 620 and a cylindrical portion 622. The flange portion 620 extends radially outward from the upper end of the cylindrical portion 622.

As shown in FIG. 11, the hose connection portion 606 is composed of a nipple member 630. The nipple member 630 has a hose connecting portion 606 and a threaded portion 632. The threaded portion 632 is a male thread. On the other hand, as shown in FIG. 9, the main body portion 610 has a screw portion 640. This threaded portion 640 is a female thread. The threaded portion 632 and the threaded portion 640 are screwed together.

The packing 612 is fixed by utilizing the screw connection between the screw portion 632 and the screw portion 640. Specifically, the flange portion 620 of the packing 612 is sandwiched between the inner extending portion 642 of the main body portion 610 and the upper end surface 644 of the nipple member 630. As the screwing amount of the screw connection is increased, the inner extending portion 342 and the upper end surface 644 come closer to each other, and the flange portion 620 is strongly sandwiched. With this configuration, the packing 612 is easily and securely fixed.

FIG. 12A is a perspective view of the upper member 500 as viewed from diagonally above to the right. FIG. 12B is a perspective view of the upper member 500 as viewed from diagonally lower right. FIG. 12C is a perspective view of the upper member 500 as viewed from diagonally lower left. FIG. 13A is a plan view of the upper member 500. FIG. 13B is a front view of the upper member 500. FIG. 13C is a bottom view of the upper member 500. FIG. 14A is a right side view of the upper member 500. 14 (b) is a cross-sectional view taken along the line AA of FIG. 13 (b). FIG. 14C is a rear view of the upper member 500.

The upper member 500 has a right side wall portion 502, a left side wall portion 503, and a connecting portion 504. As shown in FIG. 13C, the right side wall portion 502 constitutes a wall surface along the circumference. The left side wall portion 503 also constitutes a wall surface along the circumference. The right side wall portion 502 and the left side wall portion 503 form an inner wall surface along one circumferential surface.

The connecting portion 504 is strip-shaped. The connecting portion 504 is curved. The left and right connecting portion 504 is bent in a U shape. The connecting portion 504 connects the right side wall portion 502 and the left side wall portion 503. A right side wall portion 502 is provided at one end of the connecting portion 504. A left side wall portion 503 is provided at the other end of the connecting portion 504.

As shown in FIGS. 12 (a) and 12 (b), the upper member 500 is open downward. Further, as shown in FIGS. 12 (a) to 12 (c) and 13 (b), the upper member 500 is open to the front side and the back side. The right side wall portion 502 and the left side wall portion 503 form a side wall portion in which two points in the circumferential direction are missing. In other words, the upper member 500 has a right side wall portion 502 and a left side wall portion 503 as side wall portions divided at two points in the circumferential direction.

The upper member 500 has a contact portion 510 that can come into contact with the discharge pipe f3 from above (see FIG. 9). A part (top) of the connecting portion 504 is a contact portion 510.

The curved (U-shaped) connecting portion 504 forms a space that communicates in the front-rear direction. That is, the connecting portion 504 has a front opening k1, a back opening k2, and an internal space s1. The internal space s1 is a space between the front opening k1 and the back opening k2.

The upper member 500 has an upper engaging portion 520. The upper engaging portion 520 is provided on each of the right side wall portion 502 and the left side wall portion 503. That is, the upper engaging portion 520 has a first engaging portion 520R provided on the right side wall portion 502 and a second engaging portion 520L provided on the left wall portion 503. The upper engaging portion 520 is a recess. More specifically, the upper engaging portion 520 is a groove provided along the circumferential direction. When the upper engaging portion 520 of the right side wall portion 502 and the upper engaging portion 520 of the left wall portion 503 are combined, a circumferential groove substantially along one circumferential surface is formed. However, due to the fact that the right side wall portion 502 and the left side wall portion 503 are separated from each other, the circumferential groove is divided at two points in the circumferential direction (FIGS. 13 (b) and 13 (c)). )reference). That is, this peripheral groove is divided into a first engaging portion 520R and a second engaging portion 520L. The upper engaging portion 520 can engage with the engaging claw 618 of the engaging elastic body 616.

As shown in FIGS. 12 (a) and 12 (b), the inner surface of the circumference is formed by the right side wall portion 502 and the left side wall portion 503. As shown in FIG. 13C, an internal space s2 is formed between the right side wall portion 502 and the left side wall portion 503. The internal space s2 is a columnar space.

In the mounted state, the discharge pipe f30 is inserted between the right side wall portion 502 and the left side wall portion 503. The discharge pipe f30 is tubular and has a circular cross section. Therefore, the discharge pipe f30 is stably held by the right side wall portion 502 and the left side wall portion 503.

The connecting portion 504 can be elastically deformed. The width of the internal space s2 can change due to the elastic deformation of the connecting portion 504. In other words, the distance between the right side wall portion 502 and the left side wall portion 503 can change due to the elastic deformation of the connecting portion 504. The distance between the right side wall portion 502 and the left side wall portion 503 can be adjusted according to the thickness of the discharge pipe f30. Therefore, even if the thickness (diameter) and the degree of bending of the discharge pipe f30 fluctuate, the upper member 500 can stably hold the discharge pipe f30. The upper member 500 can be deformed according to the size and shape of the discharge pipe f30, and is excellent in adaptability to the discharge pipe.

[Connection status and mounting status]
As shown in FIG. 9, a bent discharge pipe f30 is sandwiched by a connected state in which the upper member 500 and the lower member 600 are engaged with each other. By this sandwiching, the hose connector 400 is fixed to the discharge pipe f30. As long as the connection state is maintained, the hose connector 400 will not come off from the discharge pipe f30.

The connected state is formed by pressing one of the upper member 500 and the lower member 600 against the other. The upper member 500 may be pressed against the lower member 600, or the lower member 600 may be pressed against the upper member 500. The connection state is formed with one touch. Forming a connected state is very easy.

As a method of attaching the hose connector 400, the following procedure C is possible. By this procedure C, the mounting state is completed at the same time as the connection state is completed.
(Procedure C) The upper member 500 is attached to the discharge pipe f30 by passing the lower end portion of the discharge pipe f30 from the back opening k2 to the internal space s2. Next, the lower member 600 is pressed against the upper member 500 from below.

By increasing the degree of elastic deformation of the connecting portion 504, the above-mentioned procedures A and B can also be performed. On the other hand, in the above procedure C, the elastic deformation of the connecting portion 504 can be suppressed, so that the burden on the connecting portion 504 is small.

In any of steps A to C, the connection state is completed by engaging the upper engaging portion 520 (recess) with the lower engaging portion 604 (engaging elastic body 616). In the process in which either one of the upper member 500 and the lower member 600 is pressed against the other, the lower end portion of the upper member 500 presses the engaging claw 618. Since the engaging claw 618 extends diagonally downward, it is easily pressed by the upper member 500 that moves from top to bottom and regresses outward in the radial direction. When the upper engaging portion 520 (recess) of the upper member 500 reaches the position of the engaging claw 618, the engaging claw 618 is released from the pressing by the upper member 200 and projects inward in the radial direction. As a result, the engaging claw 618 and the upper engaging portion 520 are engaged. In other words, the upper engaging portion 520 engages the lower engaging portion 604. In this way, a connected state can be formed only by pressing one of the upper member 500 and the lower member 600 against the other.

The slide ring 608 has a locking function of holding the engagement between the upper engaging portion 520 (recess) and the lower engaging portion 604 (engaging claw 618). The configuration of this locking mechanism is the same as that of the first embodiment described above.

Even with the hose connector 400, it is easy to form a connected state and it is highly convenient. Further, due to the deformability of the upper member 500, the adaptability to the discharge pipe f30 is high. As described above, the distance between the right side wall portion 502 and the left side wall portion 503 may change depending on the thickness and bending of the discharge pipe f30. This change also changes the distance between the first engaging portion 520R and the second engaging portion 520L, but this change in distance is the engagement between the upper engaging portion 520 and the lower engaging portion 604. Does not affect the case. As described above, the hose connector 400 is excellent in adaptability to the change in the shape of the discharge pipe f30, and the mounting state can be easily formed. The ease of installation is clear when compared to conventional hose connectors that tighten screws located at multiple locations in the circumferential direction.

Also in this second embodiment, in the mounted state, the upper member 500 and the lower member 600 in the connected state sandwich the discharge pipe f3.

As shown in FIG. 9, the lower end of the discharge pipe f30 bites into the cylindrical portion 622 of the packing 612 from the inside in the mounted state. The packing 612 is in close contact with the outer peripheral surface of the discharge pipe f30. Watertightness is achieved by this close contact.

In the mounted state, the packing 612 is in close contact with the discharge pipe f30 as long as the connected state is maintained. Due to this close contact, watertightness is maintained.

In the mounted state, the contact position c1 of the contact portion 510 is located on the water supply side (right side in FIG. 9) with respect to the center line CL1 of the lower end portion of the discharge pipe f3. Therefore, the certainty of fixing the hose connector 400 to the discharge pipe f30 is improved.

In the mounted state, there may be play between the hose connector 400 and the discharge pipe f30. That is, the hose connector 400 in the attached state may move with respect to the discharge pipe f30 as long as the discharge pipe f30 does not come off. When there is this play, it is preferable that the contact pressure (watertightness) between the packing 612 and the discharge pipe f30 is maintained in the entire range of the play.

In the hose connector 100 of the first embodiment, the upper engaging portion 220 of the upper member 200 has a missing portion 206 in which a part of the upper member 200 is missing in the circumferential direction. The engagement between the upper engaging portion 220 and the lower engaging portion 304 is a concave-convex engagement. Therefore, even if the missing portion 206 is present, the engagement between the upper engaging portion 220 and the lower engaging portion 304 is reliable and stable. Further, the missing portion 206 can be provided according to the shape of the discharge pipe f3. The upper member 200 having the missing portion 206 is excellent in adaptability to the discharge pipe. In addition, the missing portion 206 enables the above-mentioned procedures A and B.

It should be noted that strict consistency is not required between the shape of the inner surface of the upper member 200 and the shape of the outer surface of the discharge pipe. This point is also clear from the size of the space s4 shown in FIG. In the mounted state, the discharge pipe may not be pulled out from the hose connector in the connected state. It is not necessary that the inner surface of the upper member 200 and the outer surface of the discharge pipe coincide with each other in order to restrain the bent discharge pipe from coming off. As described above, the upper member 200 enables the hose connector 100 to be fixed to the discharge pipe f3 without requiring strict matching with the shape of the discharge pipe f3. The upper member 200 is excellent in compatibility with the discharge pipe in addition to being able to be covered from above.

In the hose connector 400 of the second embodiment, there is a gap 506 between the right side wall portion 502 and the left side wall portion 503 (see FIGS. 13 (b) and 13 (c)). These gaps 506 are the missing portions. That is, the upper engaging portion 520 of the upper member 500 has a missing portion 506 in which a part of the upper member 500 is missing in the circumferential direction. These missing portions 506 facilitate the deformation of the connecting portion 504. The upper member 500 having the missing portion 506 is excellent in adaptability to the discharge pipe f30.

In the hose connector 400 of the second embodiment, the upper engaging portion 520 is divided into the first engaging portion 520R and the second engaging portion 520L by providing the missing portions 506 at two locations in the circumferential direction. ing. The upper member 500 has a connecting portion 504 that connects the first engaging portion 520R and the second engaging portion 520L. The left and right connecting portion 504 has a contact portion 510. Since the discharge pipe f30 is tubular, the curved connecting portion 504 easily comes into contact with the discharge pipe f30 from above while inserting the discharge pipe f30. The curved connecting portion 504 contributes to stably sandwiching the discharge pipe f30.

In the first embodiment, the packing 312 has a cylindrical portion 322 that can be brought into close contact with the outer surface of the discharge pipe f3. The inner diameter of the cylindrical portion 322 is smaller than the outer diameter of the discharge pipe f3. When the discharge pipe f3 is inserted into the cylindrical portion 322, the cylindrical portion 322 comes into close contact with the outer surface of the discharge pipe f3. Watertightness is developed by this adhesion. Further, as shown in FIG. 2, a space s3 is provided outside the cylindrical portion 322. Water flows into this space s3 when water is passed. Therefore, when water is flowing, the water pressure presses the cylindrical portion 322 toward the discharge pipe f3. Therefore, the watertightness is further enhanced.

Regarding the attachment of the hose connector, in the above-mentioned procedure A and procedure B, the upper member is attached to the discharge pipe from the upper side. Therefore, the upper member can be attached from the upper side of the discharge pipe and the lower member can be attached from the lower side, and the attachment is easy. In the case of the above-mentioned procedure C, since the upper member cannot be attached from the upper side, the ease of attachment is lower than that in the procedure A and the procedure B. However, in this procedure C as well, one-touch engagement is possible as in the procedure A and the procedure B. In these procedures A, B, and C, the labor and time for mounting are significantly reduced as compared with the conventional hose connector for tightening the screws arranged at a plurality of locations in the circumferential direction.

The effects of the embodiment of the present application in comparison with the above-mentioned coupling for faucet connection described in Japanese Patent Application Laid-Open No. 2007-528458 are as follows.

[Effect 1]
In the embodiment of the present application, the engagement for connection is not a screw connection. Therefore, it is possible to regulate the rotation of the member (lower member) to which the hose is connected. The hose connector 400 described above has an uneven engagement that regulates the rotation of the lower member 600 with respect to the upper member 500. As shown in FIGS. 12A to 12C, the upper member 500 has an engaging convex portion 530. The engaging protrusion 530 extends in the insertion direction. On the other hand, as shown in FIG. 10, the lower member 600 has an engaging recess 650 that engages with the engaging protrusion 530. The engaging recess 650 extends in the insertion direction. In the connected state, the engaging convex portion 530 and the engaging concave portion 650 are engaged. This engagement regulates the rotation of the lower member 600 with respect to the upper member 500. The insertion direction means the insertion direction when the upper member 500 is inserted with respect to the lower member 600.

On the other hand, in the faucet connection coupling described in Japanese Patent Application Laid-Open No. 2007-528458, the above-mentioned rotation regulation is impossible because the engagement for connection is a screw connection. Therefore, even if it is desired to prevent the rotation of the member (lower member) to which the hose is connected, the rotation cannot be prevented. An example of a case where rotation is desired to be prevented is a case where a branch shower is attached. The embodiment of the present application is excellent in convenience because the rotation can be regulated.

[Effect 2]
In the faucet connection coupling described in Japanese Patent Application Laid-Open No. 2007-528458, the screw coupling may be loosened due to the rotation of the hose. This loosening of the screw connection leads to water leakage. On the other hand, in the embodiment of the present application, since the engagement for connection is not a screw connection, water leakage does not occur even if the lower member rotates.

[Effect 3]
A rectifying plate is often placed near the outlet inside the discharge pipe of the faucet. In the faucet connection coupling described in Japanese Patent Application Laid-Open No. 2007-528458, since there is a member (connector 20) inserted inside the faucet discharge pipe, it cannot be attached to the faucet on which the rectifying plate is arranged. .. On the other hand, in the embodiment of the present application, since there is no member inserted inside the discharge pipe of the faucet, it can be attached even if there is a rectifying plate.

[Effect 4]
In the faucet connection coupling described in Japanese Patent Application Laid-Open No. 2007-528458, it is difficult to know how much the screw coupling should be tightened. Insufficient tightening can lead to water leaks. Also, if the tightening is excessive, the packing will be damaged. On the other hand, in the embodiment of the present application, the completion of engagement is easy to understand. For example, in the hose connector 100, the engaging claw 318 protrudes inside the upper engaging portion 220 (recess) at the same time as the engagement is completed. Sound and / or vibration can occur during this protrusion. These sounds and / or vibrations can be used to recognize the completion of installation. That is, in the embodiment of the present application, the completion of attachment can be recognized by hearing or touch.

Further, in the embodiment of the present application, it is possible to visually recognize the completion of the attachment. As shown in FIG. 8, the connecting portion 504 of the upper member 500 has an outer protruding portion 540. The outer protrusion 540 is provided on each of the left and right sides. The first outer protrusion 540 is provided adjacent to the upper side of the right side wall portion 502. The second outer protrusion 540 is provided adjacent to the upper side of the left wall portion 503. The completion of mounting can be recognized by the distance between the upper end surface of the lower member 600 and the outer protrusion 540. For example, the installation can be completed when there is no gap between the upper end surface of the lower member 600 and the outer protrusion 540.

[Effect 5]
In the faucet connection coupling described in Japanese Patent Application Laid-Open No. 2007-528458, since it is necessary to pass the faucet discharge pipe through the cylindrical fixture 10, it is difficult to attach the faucet discharge pipe if the discharge pipe is long. For example, it is difficult to attach it to the universal faucet 10 (see FIG. 10) described above. On the other hand, the above-mentioned upper member 200 and upper member 500 are excellent in adaptability to the discharge pipe, and the range of faucets that can be used is wide.

[Effect 6]
In the faucet connection coupling described in Japanese Patent Application Laid-Open No. 2007-528458, the connector 20 is pushed upward by tightening the screw connection with the fastener 30, and the watertightness is ensured by this pushing force. Therefore, when the above-mentioned one-touch connection is applied to this conventional configuration, it is difficult to ensure watertightness. This is because one-touch connections usually result in play. On the other hand, in the hose connector 100 and the hose connector 400 described above, the contact range between the packing and the discharge pipe is secured along the direction of the center line CL1. Therefore, watertightness is ensured even if there is such play. That is, in the embodiment of the present application, watertightness is ensured even if one-touch connection is adopted.

[Effect 7]
The packing 312 of the hose connector 100 described above has a cylindrical portion 322 extending along the center line CL1. Due to the length of the cylindrical portion 322, the contact area between the packing 312 and the discharge pipe f3 is secured, and the watertightness is enhanced. When the packing 312 is applied to a conventional faucet connection coupling, in addition to the length of the cylindrical portion 322, the length of the screw connection between the fixture 10 and the fastener 30 is required. However, in the case of the faucet f1 as shown in FIG. 3, the discharge pipe f3 is short. If the packing 312 is applied in such a case, the length of the screw connection between the fixture 10 and the fastener 30 cannot be secured. On the other hand, in the embodiment of the present application, since the above-mentioned engaging structure is adopted, the length of the engaging portion (the length in the center line CL1 direction) can be shortened. The hose connector 100 of the embodiment of the present application is excellent in adaptability to a discharge pipe.

[Effect 8]
In the faucet connection coupling described in Japanese Patent Application Laid-Open No. 2007-528458, it is necessary to tighten the screws with the fixture 10 and the fastener 30. On the other hand, the one-touch connection described above is excellent in mounting workability.

[Effect 9]
Since the lower member 300 has the same structure as the existing nipple joint, it can be shared with other products. By this standardization, the lower member 300 can be connected to an existing hose joint, an existing watering nozzle, or the like.

[Effect 10]
Since the hose connector according to the embodiment of the present application is easy to attach and detach, it is easy to clean.

[Effect 11]
In the hose connector of the embodiment of the present application, the cylindrical portion of the packing can be expanded according to the outer diameter of the discharge pipe. Therefore, it can be adapted to discharge pipes having various outer diameters. The packing used in the embodiment of the present application is also referred to as a wing packing.

[Effect 12]
In the faucet connection coupling described in Japanese Patent Application Laid-Open No. 2007-528458, the engagement for connection is a screw connection. It is not preferable to provide a missing portion in the threaded joint portion, and it is preferable that both the male screw and the female screw are provided on a perfect cylindrical surface. From this point of view, the shapes of the upper member and the lower member are restricted. On the other hand, in the hose connector 100, engagement is achieved even if the upper member 200 and the lower member 300 are provided with missing portions. Further, in the hose connector 400, the upper engaging portion 520 is divided into the first engaging portion 520R and the second engaging portion 520L, and the engagement is achieved even though the distance between them can be changed. ing. The embodiment of the present application is excellent in the degree of freedom in the shape of the upper member and the lower member.

[Effect 13]
In the faucet connecting coupling described in Japanese Patent Application Laid-Open No. 2007-528458, the connecting tool 20 is pushed up by the axial force of the screw connection between the fixing tool 10 and the fastener 30 to ensure watertightness. Therefore, in this conventional technique, the upper member (fastener 30) applies a compressive force to the packing (connector 20). In order to apply this compressive force, the fixture 10 and the fastener 30 are made cylindrical, and a screw connection is fastened between them. In this configuration, the degree of freedom in the shape of the fixture 10 and the fastener 30 is low, and the compatibility with the discharge pipe is limited. On the other hand, in the hose connector 100, the upper member 200 does not apply a compressive force to the packing 312 in the connected state. The upper member 200 restricts the movement of the lower member 300, but does not apply a force that increases the compressive force of the packing 312. If the lower member 300 is pulled downward by some external force, as a result, the upper member 200 applies an upward force to the lower member 300. This upward force may affect the compressive force of the packing 312, but under normal use, the upper member 200 does not exert an upward force on the lower member 300.

As described above, the role of the upper member 200 is only to regulate the movement of the lower member 300. The upper member 200 does not need to apply an upward force to the lower member 300. Therefore, the degree of freedom in the shape of the upper member 200 can be increased, and it becomes possible to fit various discharge pipes f3.

The hose connector of the present embodiment has the above-mentioned effects, but the most remarkable effect in actual use is the workability of attachment and the compatibility with the discharge pipe.

Regarding the workability of attachment, the hose connector 100 can be attached by simply covering the upper member 200 from above. In either of the above-mentioned procedures A and B, the upper member 200 is covered from above the discharge pipe f3, and the lower member 300 simply inserts the discharge pipe f3 from below and connects them with one touch. The point that it can be attached with one hand is as described above. The same applies to the hose connector 400, and one-touch connection is possible. The amount of work required for this installation is much less than with conventional hose fittings. Regarding compatibility with discharge pipes, as described above, the upper member 200 and the upper member 500 can be compatible with various discharge pipes. Also, as mentioned above, the wing packing can be adapted to various discharge pipes. As described above, the hose connector according to the embodiment has an effect that the workability of attachment is excellent and the range of compatible faucets is wider than that of the conventional product. The hose connector according to the embodiment is extremely convenient.

In the hose connector 100, the engaging elastic body 316 is a separate member from the main body 310. However, it goes without saying that the engaging elastic body 316 may be integrated with the main body 310. Further, the number of engaging elastic bodies 316 is not limited. From the viewpoint of stability of the connected state, the number of engaging elastic bodies 316 is preferably 2 or more. Considering the manufacturing cost of the hose connector 100, the number of engaging elastic bodies 316 is preferably 6 or less, more preferably 5 or less, and more preferably 4 or less. When there are a plurality of engaging elastic bodies 316, it is preferable that these are evenly distributed in the circumferential direction.

Regarding the lock mechanism in the connected state, as described above, a slide restricting member for restricting the movement of the slide ring may be provided. As mentioned above, the slide restricting member contributes to keeping the slide ring in the locked position. Even if an unintended downward external force acts on the slide ring, the slide restricting member can reliably maintain the connected state. When the slide restricting member is a member (for example, the ring member described above) arranged in the gap g1 (see FIG. 2), the lock position can be maintained more reliably, but it takes some time and effort to attach the member. It takes. On the other hand, when the slide restricting member is the above-mentioned urging member (spring or the like), there is an advantage that the labor is reduced, but the certainty of maintaining the lock position is slightly lowered.

As described above, screwing is adopted as a fixing structure between the main body 310 and the nipple member 330 (see FIGS. 2 and 4). This fixing structure is not limited to screwing. Examples of this fixing structure include screwing, bonding and welding. As described above, screwing is preferable from the viewpoint of facilitating the fixing of the packing 312. On the other hand, from the viewpoint of suppressing the complexity of the molding die, adhesion and welding are preferable. Further, considering the processing stability at the time of mass production, welding is preferable.

Regarding the fixing of the hose connector to the faucet, as described above, the contact position c1 of the contact portion 210 is preferably located on the water supply side with respect to the center line CL1 (see FIG. 2). On the other hand, in the normal mounting state, the main body 310 is not in contact with the faucet f1, and the packing 312 is in contact with the faucet f1. That is, the packing 312 supports the entire lower member 300. However, when the hose connector 100 is tilted, the main body 310 comes into contact with the discharge pipe f3. This contact prevents the hose connector 100 from further tilting, and thus prevents the hose connector 100 from coming off. Further, instead of the main body 310, the slide ring 308 or the nipple member 330 may come into contact with the faucet f1. As described above, depending on the posture of the hose connector 100, any part of the lower member 300 abuts on the faucet f1 to prevent the hose connector 100 from tilting, and thus to prevent the hose connector 100 from coming off. Has been done. When the hose connector 100 is tilted or the like, the contact portion 210 may not come into contact with the faucet f1.

In this way, depending on the posture of the hose connector 100, at least one of the contact portion 210 or the lower member 300 abuts on the faucet f1 to suppress further inclination of the hose connector 100. By this contact, the inclination of the hose connector 100 is restricted to a predetermined critical point, and the discharge pipe f3 from the hose connector 100 is prevented from coming off. One or more members selected from the group consisting of the abutting portion 210, the slide ring 308, the main body portion 310, and the nipple member 330 function as tilt suppressing members.

For example, in the hose connector 400 shown in FIG. 8, the shape of the upper member 500 is substantially strip-shaped, and the consistency with the shape of the discharge pipe f30 is low. Even such an upper member 500 can be securely fixed to the discharge pipe f30. The low consistency with the shape of the discharge pipe f30 means that the range of the discharge pipe f30 to which the upper member 500 can be adapted is wide. That is, the upper member 500 can be adapted to various discharge pipes f30. Since the surface of the discharge pipe f3 is a smooth curved surface and slippery, it was thought that it was not easy to fix the hose connector. However, it has been found that by sandwiching the discharge pipe f30 that bends and extends between the upper member 500 and the lower member 600, the shape of the upper member 500 is not so restricted and can be fixed to the discharge pipe f30. The hose connector of the present invention is easy to attach, has high adaptability to the discharge pipe, and can be securely fixed.

What is indicated by the double-headed arrow D1 in FIG. 2 is the axial length of the space s3. From the viewpoint of increasing the degree of freedom in the insertion length of the discharge pipe f3 with respect to the packing 312 and increasing the watertightness due to the water pressure, the length D1 is preferably 5 mm or more, more preferably 7 mm or more, and more preferably 8 mm or more. From the viewpoint of miniaturization of the hose connector 100, the length D1 is preferably 16 mm or less, more preferably 14 mm or less, and further preferably 12 mm or less. In the embodiment of FIG. 2, the length D1 is 9 mm. The axial direction means the direction of the center line CL1.

In FIG. 2, the double-headed arrow D2 indicates the axial length of the cylindrical portion 322. From the viewpoint of increasing the degree of freedom in the insertion length of the discharge pipe f3 with respect to the packing 312, the length D2 is preferably 9 mm or more, more preferably 10 mm or more, and more preferably 12 mm or more. From the viewpoint of miniaturization of the hose connector 100, the length D2 is preferably 20 mm or less, more preferably 18 mm or less, and further preferably 16 mm or less. In the embodiment of FIG. 2, the length D2 is 14 mm.

What is indicated by the double-headed arrow D3 in FIG. 2 is the maximum value of the radial length of the space s3. From the viewpoint of increasing the degree of freedom in the outer diameter of the discharge pipe f3, the length D3 is preferably 1 mm or more, more preferably 2 mm or more, and more preferably 3 mm or more. From the viewpoint of miniaturization of the hose connector 100, the length D3 is preferably 8 mm or less, more preferably 7 mm or less, and further preferably 6 mm or less. In the embodiment of FIG. 2, the length D3 is set to 4 mm. The length D3 is measured in a state where the discharge pipe f3 is not inserted. The radial direction means the direction of a straight line intersecting the center line CL1 and perpendicular to the center line CL1.

In FIG. 13C, the double-headed arrow D4 indicates the separation distance between the right side wall portion 502 and the left side wall portion 503. Considering that the thin discharge pipe f3 is held, it is preferable to secure the distance D4. From this viewpoint, the distance D4 is preferably 0.5 mm or more, more preferably 1 mm or more, and more preferably 1.5 mm or more. When passing through the thick discharge pipe f3, the connecting portion 504 is deformed and the separation distance can be increased. Considering the continuity between the first engaging portion 520R and the second engaging portion 520L, it is not preferable that the separation distance becomes excessive. From this viewpoint, the distance D4 is preferably 6 mm or less, more preferably 5 mm or less, and more preferably 4 mm or less. In the embodiment of FIG. 13, the distance D4 was set to 2 mm. The distance D4 is measured in a natural state in which no external force is applied to the upper member 500.

In FIG. 6, the double-headed arrow θ1 indicates the central angle of the missing portion 206. From the viewpoint of enhancing compatibility with discharge pipes f3 having various thicknesses, the angle θ1 is preferably 60 ° or more, more preferably 70 ° or more, still more preferably 80 ° or more. From the viewpoint of increasing the circumferential range of the upper engaging portion 220, the angle θ1 is preferably 120 ° or less, more preferably 110 ° or less, and more preferably 100 ° or less. In the embodiment of FIG. 6, the angle θ1 is 90 °. The center of the angle θ1 can be the center of the circumferential surface existing on at least a part of the inner surface or the outer surface of the upper member 200.

In FIG. 13, what is indicated by the double-headed arrow θ2 is the central angle of the front opening k1 (and the back opening k2). From the viewpoint of enhancing compatibility with discharge pipes f3 having various thicknesses, the angle θ2 is preferably 60 ° or more, more preferably 70 ° or more, still more preferably 80 ° or more. Considering the durability of the connecting portion 504 in repeated elastic deformation, the angle θ2 is preferably 120 ° or less, more preferably 110 ° or less, and more preferably 100 ° or less. In the embodiment of FIG. 13, the angle θ2 is 90 °. The angle θ2 is measured in a natural state in which no external force is applied to the upper member 500.

FIG. 15 is a perspective view showing a state in which the hose connector 700 according to the third embodiment is attached to the faucet f1. FIG. 16 is a cross-sectional view of FIG.

The hose connector 700 has an upper member 800 and a lower member 300. The upper member 800 and the lower member 300 are detachably connected to each other.

The only difference between the hose connector 100 and the hose connector 700 described above is the presence or absence of the second upper engaging portion 222. As shown in FIG. 16, the upper member 800 has an upper engaging portion 220 like the above-mentioned upper member 200. In addition, the upper member 800 has a second upper engaging portion 222. In the connected state, the upper engaging portion 220 and the second upper engaging portion 222 have different axial positions. In addition to the upper engaging portion 220, the lower engaging portion 304 (engaging claw 318 of the engaging elastic body 316) can also engage with the second upper engaging portion 222.

These plurality of upper engaging portions 220 and 222 enhance the adaptability to the discharge pipes f3 having different lengths. When the discharge pipe f3 is short as shown in FIG. 16, the engaging claw 318 engages with the upper engaging portion 220. When the discharge pipe f3 is long, the engaging claw 318 can engage with the second upper engaging portion 222. By providing the plurality of upper engaging portions in this way, the compatibility with the discharge pipes f3 having different lengths is enhanced. From this point of view, it is preferable to provide a plurality of upper engaging portions having different axial positions in the connected state. In this embodiment, the upper engaging portion has two stages, but it may have three or more stages.

FIG. 17 is a perspective view showing a state in which the hose connector 900 according to the fourth embodiment is attached to the faucet f10. FIG. 18 is a cross-sectional view of FIG. FIG. 19 is an exploded perspective view of FIG. FIG. 20 is an exploded perspective view in which the lower member of FIG. 19 is further disassembled.

The hose connector 900 has an upper member 1000 and a lower member 1100. The upper member 1000 and the lower member 1100 are detachably connected to each other.

The faucet f10 has a faucet main body f20, a discharge pipe f30, and an operation unit f40. Further, the faucet f10 has a built-in valve (not shown). By operating (rotating) the operation unit f40, it is possible to switch the water discharge stop water and adjust the water discharge amount.

In the present embodiment, in the faucet f10, the discharge pipe f30 can rotate with respect to the faucet main body f20. In those skilled in the art, this faucet f10 is referred to as a universal faucet. In this faucet f10, the discharge pipe f30 extends diagonally. Therefore, in the mounted state, the upper member 1000 is located diagonally above the lower member 1100 (see FIG. 17).

The upper member 1000 is a member integrally molded as a whole. The upper member 1000 is a member that is partially open in the circumferential direction and is open downward as a whole. Details of the upper member 1000 will be described later.

The lower member 1100 has a discharge pipe insertion portion 1102, a ring engaging body 1104, and a hose connecting portion 1106. The discharge pipe insertion portion 1102 has a cylindrical inner surface. The lower end of the discharge pipe f30 is inserted into the discharge pipe insertion portion 1102. A hose (connector attached to the end of the hose) is connected to the hose connection portion 1106. The hose connection portion 1106 has an O-ring 1108. The O-ring 1108 enhances watertightness at the connection.

As shown in FIG. 20, the discharge pipe insertion portion 1102 has a main body portion 1110 and a packing 1112. The main body portion 1110 is a cylindrical member as a whole. The main body portion 1110 has through holes 1114 at a plurality of locations (three locations) in the circumferential direction (see FIG. 20). The packing 1112 is a wing packing.

The main body portion 1110 has a missing portion 1110a. The missing portion 1110a extends downward from the upper end surface of the main body portion 1110. The missing portion 1110a prevents interference between the discharge pipe f30 and the lower member 1100. The missing portion 1110a increases the degree of freedom in the shape of the faucet f10 to which the hose connector 900 can be attached.

The ring engaging body 1104 is an example of a lower engaging portion that can engage with the upper engaging portion 1020 of the upper member 1000. The ring engaging body 1104 is an endless annular member. Details of the ring engaging body 1104 will be described later.

The ring engaging body 1104 is detachably attached to the main body portion 1110 (lower member 1100). The ring engaging body 1104 is attached to the outer surface of the main body portion 1110 (lower member 1100) (FIG. 19). The ring engaging body 1104 is attached to the side surface of the main body portion 1110 (lower member 1100). The main body portion 1110 (lower member 1100) has a peripheral groove 1116 into which the ring engaging body 1104 is fitted (see FIG. 20).

The ring engaging body 1104 can be removed from the lower member 1100 (main body 1110) in a connected state in which the upper member 1000 and the lower member 1100 are engaged with each other. In the present application, the relative positional relationship between the upper member 1000 and the lower member 1100 in the connected state is also referred to as a normal connection position. When the upper member 1000 and the lower member 1100 are in the regular connection position, the ring engaging body 1104 can be removed from the lower member 1100. When the upper member 1000 and the lower member 1100 (excluding the ring engaging body 1104) are in the normal connection position, the ring engaging body 1104 can be attached to the lower member 1100.

As shown in FIGS. 18 and 20, the packing 1112 has a flange portion 1120 and a cylindrical portion 1122. The flange portion 1120 extends radially outward from the upper end of the cylindrical portion 1122.

In the mounted state, the discharge pipe f30 passes through the cylindrical portion 1122 of the flange portion 1120. The inner diameter of the cylindrical portion 1122 in the natural state is smaller than the outer diameter of the discharge pipe f30 passing through the cylindrical portion 1122. Therefore, in the mounted state, the cylindrical portion 1122 of the flange portion 1120 is in close contact with the outer surface of the discharge pipe f30 (see FIG. 18). This close contact prevents water leakage.

As shown in FIG. 20, the hose connection portion 1106 is composed of a nipple member 1130. The nipple member 1130 has a hose connecting portion 1106 and a connecting portion 1132. The connecting portion 1132 is fixed while being inserted inside the main body portion 1110. The packing 1112 is sandwiched and fixed between the main body portion 1110 and the nipple member 1130.

FIG. 21A is a perspective view of the upper member 1000 as viewed from diagonally above to the right. FIG. 21B is a perspective view of the upper member 1000 as viewed from diagonally lower right. FIG. 21C is a perspective view of the upper member 1000 as viewed from diagonally lower left. FIG. 22A is a front view of the upper member 1000. 22 (b) is a cross-sectional view taken along the line AA of FIG. 22 (a). FIG. 22 (c) is a rear view of the upper member 1000.

The upper member 1000 has a side wall portion 1002 and an upper wall portion 1004. The upper member 1000 is open downward. The side wall portion 1002 has a substantially cylindrical shape, but a part thereof in the circumferential direction is missing. That is, the side wall portion 1002 has a missing portion 1006.

The upper member 1000 has a contact portion 1010 that can come into contact with the discharge pipe f3 from above (see FIG. 18). In the upper wall portion 1004 of the upper member 1000, the portion located above the missing portion 1006 is the contact portion 1010.

In the mounted state, the discharge pipe f30 passes through the missing portion 1006 of the upper member 1000, passes through the internal space of the upper member 1000, and reaches the lower member 1100.

The upper member 1000 has a contact surface M1. The contact surface M1 is provided at the lower end of the upper member 1000. The contact surface M1 is an inclined surface. In the process of pressing one of the upper member 1000 and the lower member 1100 against the other, the contact surface M1 may come into contact with the engaging protrusion 1104a (described later) of the ring engaging body 1104.

The upper member 1000 has an upper engaging portion 1020. The upper engaging portion 1020 is provided on the side wall portion 1002. The upper engaging portion 1020 is a recess. More specifically, the upper engaging portion 1020 is a groove provided along the circumferential direction. However, in the region where the missing portion 1006 exists, the upper engaging portion 1020 (groove) is interrupted. The upper engaging portion 1020 can engage with the engaging protruding portion 1104a (described later) of the ring engaging body 1104.

The upper member 1000 has a detent recess 1030. The detent recess 1030 is a groove extending in the insertion direction, and the lower end of the groove is open. On the other hand, the main body portion 1110 has a detent protrusion 1118 (see FIG. 20). In the connected state, the detent recess 1030 and the detent protrusion 1118 engage. The uneven engagement restricts the rotation of the upper member 1000 with respect to the lower member 1100 (main body 1110).

FIG. 23A is a perspective view of the ring engaging body 1104, and FIG. 23B is a perspective view of the ring engaging body 1104 as viewed from another viewpoint. FIG. 23 (c) is a plan view of the ring engaging body 1104, and FIG. 23 (d) is a bottom view of the ring engaging body 1104.

The ring engaging body 1104 is a substantially C-shaped member. The ring engaging body 1104 is an endless annular member. The ring engaging body 1104 has an engaging protrusion 1104a, a first end t1, a second end t2, and a connecting portion 1104b.

The material of the ring engaging body 1104 is resin. The connecting portion 1104b can be elastically deformed. The ring engaging body 1104 can be elastically deformed so that the distance between the first end t1 and the second end t2 becomes large. The elastic deformation of the ring engaging body 1104 is also referred to as expansion deformation. The expanded and deformed ring engaging body 1104 tries to return to the natural state by the elastic force. That is, the expanded and deformed ring engaging body 1104 can be elastically deformed so that the distance between the first end t1 and the second end t2 becomes smaller. The elastic deformation of the ring engaging body 1104 is also referred to as diameter reduction deformation.

The ring engaging body 1104 has a plurality of engaging protrusions 1104a protruding inward in the radial direction. In the embodiment of FIG. 23, as a plurality (three) engaging protrusions 1104a, an engaging protrusion p1, an engaging protrusion p2, and an engaging protruding portion p3 are provided. An engaging protrusion p3 is provided between the engaging protrusion p1 and the engaging protrusion p2. An engaging protrusion p1 is provided between the engaging protrusion p3 and the first end t1. An engaging protrusion p2 is provided between the engaging protrusion p3 and the second end t2.

The connecting portion 1104b connects the engaging protrusions 1104a to each other. The first connecting portion 1104b connects the engaging protruding portion p1 and the engaging protruding portion p3. The second connecting portion 1104b connects the engaging protruding portion p2 and the engaging protruding portion p3. The engaging protrusion 1104a protrudes inward in the radial direction with respect to the connecting portion 1104b.

As described above, the ring engaging body 1104 is attached to the outer surface of the lower member 1100 (main body portion 1110). This installation is easy. When the first end t1 and the second end t2 of the ring engaging body 1104 are pressed against the main body portion 1110 (peripheral groove 1116), the ring engaging body 1104 is deformed in diameter through expansion deformation, and the main body portion 1110 (circumferential) is deformed. It is fitted in the groove 1116). At the same time, each of the engaging protrusions 1104a penetrates the through hole 1114 of the main body 1110 and protrudes inward from the inner surface of the main body 1110 (see FIG. 19). The state of the ring engaging body 1104 is also referred to as a normally mounted state.

[Connection status and mounting status]
As shown in FIG. 18, a bent discharge pipe f30 is sandwiched by a connected state in which the upper member 1000 and the lower member 1100 are engaged with each other. By this sandwiching, the hose connector 900 is fixed to the discharge pipe f30. As long as the connection state is maintained, the hose connector 900 will not come off from the discharge pipe f30.

The connected state is formed by pressing one of the upper member 1000 and the lower member 1100 against the other. The upper member 1000 may be pressed against the lower member 1100, or the lower member 1100 may be pressed against the upper member 1000. The connection state is formed with one touch. Forming a connected state is very easy.

24 (a) and 24 (b) are cross-sectional views illustrating the connection between the upper member 1000 and the lower member 1100. In this connection, the ring engaging body 1104 is in the normally mounted state. By pressing one of the upper member 1000 and the lower member 1100 against the other, the contact surface M1 of the upper member 1000 comes into contact with the engaging protrusion 1104a (each of the engaging protrusions p1 to p3). The contact surface M1 is inclined so as to be inside the upper member 1000 as it approaches the end surface of the upper member 1000. Therefore, as the upper member 1000 moves toward the lower member 1100, the contact surface M1 displaces the engaging protrusion 1104a to the outside. Due to this displacement, the ring engaging body 1104 is expanded and deformed. When the upper engaging portion 1020 of the upper member 1000 reaches the position of the engaging protruding portion 1104a, the ring engaging body 1104 is deformed in diameter due to the elastic restoring force of the ring engaging body 1104. Due to this reduced diameter deformation, the engaging protrusion 1104a enters (engages) the upper engaging portion 1020 (FIG. 24 (b)).

The following procedures D and E are possible as a method of attaching the hose connector 900. By steps D and E, the mounting state is completed at the same time as the connection state is completed.
(Procedure D) The discharge pipe f3 is covered with the upper member 1000 from above, and then the lower member 1100 is pressed against the upper member 1000 from below while inserting the discharge pipe f30 into the discharge pipe insertion portion 1102.
(Procedure E) The lower member 1100 is attached to the discharge pipe f30 from below, and then the upper member 1000 is pressed against the lower member 1100 from above.

Regarding the workability of attachment, the hose connector 900 can be attached by simply covering the upper member 1000 from above. In either of the above-mentioned procedures D and E, the upper member 1000 is covered from above the discharge pipe f30, and the lower member 1100 simply inserts the discharge pipe f30 from below to make a one-touch connection. Therefore, it can be installed with one hand.

In these procedures D and E, the ring engaging body 1104 is attached to the lower member 1100 before connecting the upper member 1000 and the lower member 1100. In other words, the ring engaging body 1104 is in the normally mounted state before connecting the upper member 1000 and the lower member 1100. This is also called pre-installation. In the case of pre-mounting, a connected state can be formed only by pressing one of the upper member 1000 and the lower member 1100 against the other. That is, one-touch connection is possible.

As described above, the ring engaging body 1104 is detachably attached to the outside of the lower member 1100. Therefore, the ring engaging body 1104 can be mounted after the upper member 1000 and the lower member 1100 are in the same positional relationship as in the connected state. This is also referred to as post-installation. From the viewpoint of smooth connection (one-touch connection), the above-mentioned pre-mounting is preferable to this post-mounting. That is, as in the above procedures D and E, it is preferable to attach the ring engaging body 1104 after putting it in the regular mounting state in advance. In other words, the ring engaging body 1104 is mounted on the lower member 1100 before pressing one of the upper member 1000 and the lower member 1100 against the other (the ring engaging body 1104 is in the normally mounted state). ) Is preferable.

As described above, in the hose connector 900, the lower engaging portion is composed of the ring engaging body 1104 which is an endless annular member. The upper member 1000 has a recess 1020 as an upper engaging portion and a contact surface M1. The lower member 1100 has a through hole 1114 (FIG. 20). The ring engaging body 1104 is fitted on the outside of the lower member 1100. Due to the elastic deformation (expansion deformation and diameter reduction deformation) of the ring engaging body 1104, the ring engaging body 1104 is removably attached to the outer surface of the lower member 1100. When the ring engaging body 1104 is in the normally mounted state, the engaging protruding portion 1104a passes through the through hole 1114 and protrudes into the lower member 1100 (FIG. 19). The contact surface M1 abuts on the engaging protrusion 1104a projecting inside the lower member 1100 by pressing one of the upper member 1000 and the lower member 1100 against the other, and causes the ring engaging body 1104 to come into contact with the engaging protrusion 1104a. It is configured to be expanded and deformed (FIG. 24 (a)). The engaging protrusion 1104a has entered the recess 1020 due to the reduced diameter deformation of the ring engaging body after the expansion deformation. As a result, the connection state is formed (FIGS. 18 and 24 (b)).

From the viewpoint of stable engagement, the number of engaging protrusions 1104a is preferably 2 or more, and more preferably 3 or more. If the size of the engaging protrusion 1104a is secured, the number of the engaging protrusions 1104a is limited. Further, if the number of engaging protrusions 1104a is excessive, the structure becomes complicated, which is not preferable in terms of smooth engagement. From this viewpoint, the number of engaging protrusions 1104a is preferably 6 or less, and more preferably 4 or less.

The ring engaging body 1104 can be mounted even if it is turned upside down. Even if the ring engaging body 1104 is mounted upside down, the contact surface M1 (inclined surface) of the upper member 1000 can press the engaging protrusion 1104a of the ring engaging body 1104. Even if the ring engaging body 1104 is mounted upside down, one-touch connection is possible.

Both the connection structure (engagement claw type) described in the first to third embodiments described above and the connection structure (ring engagement body type) of the hose connector 900 according to the fourth embodiment have water pressure. It is hard to come off the faucet even if it works. That is, both types have high pull-out prevention performance. In particular, the hose connector 900 has higher disconnection prevention performance. At high water pressure, the force (water pressure) in the direction of separating the upper member and the lower member increases. In the case of the above-mentioned engaging claw type, the clearance in the insertion direction between the upper engaging portion and the engaging claw so that all of the plurality of engaging claws arranged dispersed in the circumferential direction are surely engaged. It is necessary to take a relatively large amount of (engagement play). Also, the engaging claws can be deformed by water pressure. On the other hand, in the ring engaging body type, the clearance is small, and the ring engaging body 1104 is hardly deformed even at high water pressure. Therefore, the ring engagement type hose connector has extremely high anti-disengagement performance at high water pressure. Of course, the engaging claw type hose connector can also have practical disconnection prevention performance.

The ring engaging body type has a simpler structure and fewer parts than the engaging claw type. Therefore, the ring engaging body type is easy to assemble and has few failures. Further, since the ring engaging body is removable, it is easy to replace parts independently. Further, since the ring engaging body can be attached and detached by the user, the ring engaging body can be shipped without being attached, and the user can replace the parts. The ring engagement type has a simple structure, but has a small clearance (play) and can realize highly reliable engagement.

Examples of the material of the upper member include resin and metal. As the resin, a resin having excellent strength and productivity is preferable. From the viewpoint of moldability, the resin is preferably a thermoplastic resin. From the viewpoint of moldability, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS), and polyacetal (POM) are exemplified as more preferable resins. From the viewpoint of strength, polyacetal (POM) is more preferable. In the above-described embodiment, the material of the upper member is polyacetal (POM).

Examples of the material of the engaging elastic body include resin and metal. As the resin, a resin having excellent strength and productivity is preferable. From the viewpoint of moldability, the resin is preferably a thermoplastic resin. From the viewpoint of moldability, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS), and polyacetal (POM) are exemplified as more preferable resins. From the viewpoint of strength, polyacetal (POM) is more preferable. In the above-described embodiment, the material of the engaging elastic body is polyacetal (POM).

Examples of the material of the slide ring include resin and metal. As the resin, a resin that is inexpensive and has excellent productivity is preferable. From the viewpoint of moldability, the resin is preferably a thermoplastic resin. From the viewpoint of moldability, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS), and polyacetal (POM) are exemplified as more preferable resins. ABS is more preferable from the viewpoint of being inexpensive and having excellent strength. In the above-described embodiment, the material of the slide ring is ABS.

Examples of the material of the main body are resin and metal. As the resin, a resin that is inexpensive and has excellent productivity is preferable. From the viewpoint of moldability, the resin is preferably a thermoplastic resin. From the viewpoint of moldability, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS), and polyacetal (POM) are exemplified as more preferable resins. ABS is more preferable from the viewpoint of being inexpensive and having excellent strength. In the above-described embodiment, the material of the main body is ABS.

Examples of the material of the hose connection portion include resin and metal. As the resin, a resin that is inexpensive and has excellent productivity is preferable. From the viewpoint of moldability, the resin is preferably a thermoplastic resin. From the viewpoint of moldability, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS), and polyacetal (POM) are exemplified as more preferable resins. ABS is more preferable from the viewpoint of being inexpensive and having excellent strength. In the above-described embodiment, the material of the hose connection portion is ABS.

The ring engaging body 1104 preferably has excellent strength, and is required to have the property of bending back. Resin is preferable as the material of the ring engaging body 1104. As the resin, a thermoplastic resin is preferable from the viewpoint of ease of molding. From the viewpoint of moldability, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS) and polyacetal (POM) are more preferable. POM is more preferable from the viewpoint of excellent strength.

The present application also describes other inventions that are not included in the invention according to the independent claims. Each of the forms, members, configurations, etc. described in the claims and embodiments of the present application is recognized as an invention based on the action and effect of each.

Each of the embodiments, members, configurations, etc. shown in the above embodiments does not include all the embodiments, members, or configurations of these embodiments, but individually includes the invention according to the claim of the present application. It can be applied to all the described inventions.

The hose fittings described above can be applied to any faucet.

100 ・ ・ ・ Hose connector 200 ・ ・ ・ Upper member 206 ・ ・ ・ Missing part 210 ・ ・ ・ Contact part 220 ・ ・ ・ Upper engaging part 300 ・ ・ ・ Lower member 302 ・ ・ ・ Discharge pipe insertion part 304・ ・ ・ Lower engaging part 306 ・ ・ ・ Hose connection part 308 ・ ・ ・ Slide ring 310 ・ ・ ・ Main body part 312 ・ ・ ・ Packing
316 ... Engagement elastic body 318 ... Engagement claw 330 ... Nipple member 400 ... Hose connector 500 ... Upper member 502 ... Right side wall part 503 ... Left side wall part 504 ...・ ・ Connecting part 520 ・ ・ ・ Upper engaging part 600 ・ ・ ・ Lower member 606 ・ ・ ・ Hose connection part 608 ・ ・ ・ Slide ring 610 ・ ・ ・ Main body part of lower member 612 ・ ・ ・ Packing 900 ・ ・・ Hose connector 1000 ・ ・ ・ Upper member 1020 ・ ・ ・ Upper engagement part (recess)
1100 ... Lower member 1104 ... Ring engaging body 1104a ... Engagement protrusion

Claims (6)

It has an upper member and a lower member that can be detachably connected to each other.
The upper member has a contact portion capable of contacting the discharge pipe of the faucet from above and an upper engaging portion.
The lower member has a discharge pipe insertion portion having packing, a lower engaging portion capable of engaging with the upper engaging portion, and a hose connecting portion.
The bent and extending discharge pipe can be sandwiched by the connected state in which the upper engaging portion and the lower engaging portion are engaged with each other.
By pressing one of the upper member and the lower member against the other, the connection state is formed .
The engagement between the upper engaging portion and the lower engaging portion is an engagement due to elastic deformation.
A hose connector in which a force that presses one of the upper member and the lower member against the other includes a force for elastic deformation. It has an upper member and a lower member that can be detachably connected to each other.
The upper member has a contact portion capable of contacting the discharge pipe of the faucet from above and an upper engaging portion.
The lower member has a discharge pipe insertion portion having packing, a lower engaging portion capable of engaging with the upper engaging portion, and a hose connecting portion.
The bent and extending discharge pipe can be sandwiched by the connected state in which the upper engaging portion and the lower engaging portion are engaged with each other.
By pressing one of the upper member and the lower member against the other, the connection state is formed .
One of the upper engaging portion and the lower engaging portion has a convex portion that regresses due to elastic deformation due to compression, and the other engages with the protruding convex portion while allowing the convex portion to protrude. It has a recess and
A hose connector in which the convex portion and the concave portion are engaged with each other when the upper member and the lower member are in a predetermined positional relationship by the pressing. The hose connection portion according to claim 1 or 2 , wherein the upper engaging portion has a missing portion in which a part is missing in the circumferential direction. By providing the missing portion at two locations in the circumferential direction, the upper engaging portion is divided into a first engaging portion and a second engaging portion.
The upper member has a connecting portion that connects the first engaging portion and the second engaging portion.
The hose connecting portion according to claim 3 , wherein the connecting portion has the contact portion. The packing has a cylindrical portion that can be in close contact with the outer surface of the discharge pipe.
The hose connection portion according to any one of claims 1 to 4 , wherein a space is provided outside the cylindrical portion. It has an upper member and a lower member that can be detachably connected to each other.
The upper member has a contact portion capable of contacting the discharge pipe of the faucet from above and an upper engaging portion.
The lower member has a discharge pipe insertion portion having packing, a lower engaging portion capable of engaging with the upper engaging portion, and a hose connecting portion.
The bent and extending discharge pipe can be sandwiched by the connected state in which the upper engaging portion and the lower engaging portion are engaged with each other.
A hose connector in which the upper member does not apply a compressive force to the packing in the connected state.

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