JP2021143585A - Hose connector - Google Patents

Abstract

To provide a hose connector having excellent water pressure resistance and operability.SOLUTION: A hose connector 10 comprises: a main body member 100, the entirety of which is an integral body, and into which a discharge pipe f3 of a faucet is to be inserted; a pressing member 200 which is rotatably attached to the main body member 100 and which applies to the discharge pipe f3, pressing force that includes a discharge direction component; a rotation operation part 300 which can rotate the pressing member 200 in a loosening direction and in a tightening direction; a first engagement part E1 which is fixed to or engaged with the main body member 100; and a second engagement part which engages with the first engagement part E1 and which rotates with the rotation operation part 300 and the pressing member 200. The pressing member 200 has a pressing contact surface M1 which comes into contact with the discharge pipe f3. The pressing contact surface M1 is formed such that a distance to the discharge pipe f3 changes with rotation of the pressing member 200. Reaction force to the pressing force is transmitted to the second engagement part and presses the second engagement part against the first engagement part.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to hose fittings.

As a hose connector for connecting a hose to a faucet, a type is known in which a plurality of screws distributed in the circumferential direction are tightened and fixed to the faucet. In this type, it takes time and effort to tighten a plurality of screws evenly. On the other hand, Utility Model Application Publication No. 49-7477 discloses a hose joint that can be attached to a faucet for a washbasin by tightening a bolt. Japanese Unexamined Patent Publication No. 2017-219194 discloses a hose connector that includes an upper member and a lower member, and can sandwich a bent discharge pipe by these members.

Utility Model Application Publication No. 49-7477 JP-A-2017-219194

The present inventor has found room for further improvement in the resistance to disengagement due to water pressure and operability. The present disclosure provides a hose connector having excellent water pressure resistance and operability.

In one embodiment, the hose connector is integrated as a whole, and includes a main body member into which the water discharge pipe of the faucet is inserted, a hose connection portion to which the hose is connected, and the water discharge pipe inserted into the main body member. A packing for watertightly connecting the hose connection portion, a pressing member rotatably attached to the main body member to apply a pressing force containing a water discharge direction component to the water discharge pipe, and a loosening direction and tightening of the pressing member. A rotation operation portion that can be rotated in a direction, a first engagement portion that is fixed or engaged with the main body member, and the rotation operation portion and the pressing member that engage with the first engagement portion. It includes a second engaging portion that rotates together with the hose. The second engaging portion is located between the first engaging portion and the pressing member. The pressing member has a pressing contact surface that abuts on the water discharge pipe. The pressing contact surface is formed so that the distance from the water discharge pipe fluctuates due to the rotation of the pressing member. The reaction force of the pressing force is transmitted to the second engaging portion to press the second engaging portion against the first engaging portion.

On one side, a hose connector with excellent water pressure resistance and operability can be provided.

FIG. 1 is a perspective view showing a fixed 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. 1 and is a cross-sectional view in a fixed state. FIG. 3 is a cross-sectional view corresponding to FIG. 2, which is a cross-sectional view in a released state. FIG. 4 is an exploded perspective view of the hose connector of the first embodiment. 5 (a) is a perspective view of the main body member viewed from above, FIG. 5 (b) is a front view of the main body member, and FIG. 5 (c) is a perspective view of the main body member viewed from below. , FIG. 5D is a bottom view of the main body member. FIG. 6A is a perspective view of the pressing member viewed from above, FIG. 6B is a plan view of the pressing member, and FIG. 6C is a front view of the pressing member viewed from the chipped portion side. FIG. 6 (d) is a perspective view of the pressing member as viewed from below, and FIG. 6 (e) is a bottom view of the pressing member. 7 (a) is a perspective view of the rotation operation unit as viewed from above, FIG. 7 (b) is a plan view of the rotation operation unit, and FIG. 7 (c) is a side view of the rotation operation unit. 7 (d) is a perspective view of the rotation operation unit as viewed from below, and FIG. 7 (e) is a bottom view of the rotation operation unit. 8 (a) is a perspective view of the locking member as viewed from above, FIG. 8 (b) is a plan view of the locking member, and FIG. 8 (c) is a side view of the locking member. 8 (d) is a perspective view of the locking member as viewed from below. FIG. 9 is a perspective view showing a hose connector in a fixed state and a released state. FIG. 10 is a side view showing the hose connector in the fixed state and the released state. FIG. 11 is a cross-sectional view showing a hose connector in a fixed state and a released state. 12A and 12B are perspective views of the pressing member of the modified example viewed from above, FIG. 12B is a plan view of the pressing member, and FIG. 12C is a side view of the pressing member. 12 (d) is a perspective view of the pressing member as viewed from below, and FIG. 12 (e) is a bottom view of the pressing member.

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. If the faucet posture is atypical, these terms will be interpreted in line with that posture.

Unless otherwise specified, in the present application, the "radial direction" means the direction perpendicular to the rotation axis of the pressing member, and the "circumferential direction" means the circumferential direction of the cylinder centered on the rotation axis of the pressing member. However, the "phase" means the phase in the circumferential direction, and the "axial direction" means the direction of the rotation axis of the pressing member. In the embodiment of the present application, the rotation axis of the pressing member coincides with the rotation axis of the rotation operation unit, and also coincides with the rotation axis of the locking member.

[First Embodiment]
FIG. 1 is a perspective view of the faucet f1 to which the hose connector 10 according to the first embodiment is attached. FIG. 2 is a cross-sectional view of FIG. 1 and 2 show a fixed state in which the hose connector 10 is fixed to the faucet f1. FIG. 3 is a cross-sectional view showing a released state in which the fixing to the faucet f1 is released. In the cross-sectional views of FIGS. 2 and 3, only the outline of the faucet f1 is shown.

The faucet f1 has a faucet main body f2, a water discharge pipe f3, and a handle f4. The water discharge pipe f3 is connected to the faucet main body f2. The water that has passed through the faucet body f2 is discharged through the water discharge pipe f3. The faucet f1 has a built-in valve (not shown). By operating (rotating) the handle f4, this valve is opened and closed. By operating the handle f4, the water discharge stop water is switched and the water discharge amount is adjusted.

In the present embodiment, the faucet f1 has a water discharge pipe f3 fixed to the faucet main body f2. In those skilled in the art, this faucet f1 is referred to as a horizontal faucet. This title is defined in JIS B 2061. In this faucet f1, the boundary between the faucet main body f2 and the water discharge pipe f3 is not always clear, but the portion downstream of the valve may be regarded as the water discharge pipe f3. Further, a portion having a constant thickness (outer diameter) leading to the water discharge port f6 may be regarded as the water discharge pipe f3.

Examples of the faucet f1 to which the hose connector 10 can be used include a horizontal faucet, a horizontal faucet (rotating spout type), and a horizontal faucet (universal type). These titles are also defined in JIS B 2061. The horizontal faucet (rotating spout) is also called a universal home faucet. The horizontal faucet (universal type) is also called a universal faucet.

At least a part of the water discharge pipe f3 is bent and extended. That is, the water discharge pipe f3 has a bent portion f5. Further, the water discharge pipe f3 has a water discharge port f6. Water is discharged from the spout f6. The water discharge pipe f3 extends from the faucet main body f2 and ends at the water discharge port f6. The bent portion f5 is bent so that the spout f6 faces downward.

In the faucet f1, the water discharge direction is defined. The water discharge direction is the direction in which water is discharged. To be precise, the water discharge direction is defined as follows. As shown in FIG. 2, when the water discharge pipe f3 has a straight portion extending straight to reach the spout port f6, the direction of the center line of the straight portion is defined as the water discharge direction Dx. When the water discharge pipe f3 is bent to the water discharge port f6, the direction of a straight line perpendicular to the plane including the end face of the water discharge port f6 is defined as the water discharge direction Dx.

The outer surface of the bent portion f5 has a convex curved surface f51 and a concave curved surface f52 (see FIG. 2). The convex curved surface f51 is formed on the outside (outer peripheral side) of the bend. The concave curved surface f52 is formed on the inside (inner peripheral side) of the bend.

FIG. 4 is an exploded perspective view of the hose connector 10. The hose connector 10 has a main body member 100 and a pressing member 200. The pressing member 200 is rotatably attached to the main body member 100. The hose connector 10 is fixed to the faucet f1 by pressing the pressing member 200 against the water discharge pipe f3 (bent portion f5). In the fixed state, the pressing member 200 applies a pressing force to the bent portion f5 of the water discharge pipe f3.

Further, the hose connector 10 has a rotation operation unit 300, a locking member 400, and an urging member 500. The rotation operation unit 300 constitutes an operation lever. The pressing member 200 rotates together with the rotation operation unit 300. By rotating the rotation operation unit 300, the pressing member 200 rotates. The locking member 400 rotates together with the rotation operation unit 300. The locking member 400 rotates together with the pressing member 200. The locking member 400 suppresses the pressing member 200 in the fixed state from loosening. The urging member 500 is located between the pressing member 200 and the locking member 400. The urging member 500 constantly urges the locking member 400 upward.

The rotation operation unit 300 is arranged on the outside (upper side) of the main body member 100. The pressing member 200 is arranged inside the main body member 100. The locking member 400 is arranged inside the main body member 100. The urging member 500 is arranged inside the main body member 100. The pressing member 200 is arranged below the locking member 400. The locking member 400 is arranged below the rotation operation unit 300. An upper wall portion of the main body member 100 is interposed between the rotation operation portion 300 and the locking member 400.

Further, the hose connector 10 has a packing 510 and a lower member 520. The packing 510 is annular. The packing 510 has an annular base portion 512 and a tubular portion 514 extending from the base portion 512 in the radial direction of the base portion 512. In the fixed state, the packing 510 is in close contact with the outer surface of the water discharge pipe f3. The water discharge pipe f3 is inserted inside the tubular portion 514. The tubular portion 514 is in close contact with the outer surface of the water discharge pipe f3. The packing 510 is fixed to the main body member 100 by sandwiching the base portion 512 between the main body member 100 and the lower member 520. The packing 510 enables a watertight connection of the hose connector 10.

The lower member 520 constitutes a flow path that penetrates the inside thereof. The lower member 520 has a hose connection portion 522 and a screw portion 524. The threaded portion 524 is a male thread. The screw portion 524 is screw-coupled to the female screw portion formed in the lower portion of the main body member 100. The hose connection portion 522 constitutes the lower end portion of the hose connection tool 10. A hose (not shown) is connected to the hose connection portion 522. An annular seal member 526 (O-ring) is attached to the hose connection portion 522. An annular seal member 528 (O-ring) is also mounted on the upper side of the screw portion 524.

The hose connector 10 has a water pipe insertion portion 530. The water discharge pipe insertion portion 530 constitutes a cavity into which the water discharge pipe f3 is inserted while forming an internal flow path of the hose connector 10. The main body member 100 and the lower member 520 are screwed together while sandwiching the packing 510 (base 512). The combined main body member 100 and lower member 520 constitute a water pipe insertion portion 530 having a cavity inside. The water discharge pipe insertion portion 530 has an upper opening, and the water discharge pipe f3 is inserted into the water discharge pipe insertion portion 530 from the upper opening. By this insertion, the packing 510 is brought into close contact with the outer surface of the water discharge pipe f3.

5 (a) is a perspective view of the main body member 100 as viewed from above, and FIG. 5 (b) is a front view of the main body member 100 as viewed from the side where the faucet f1 is inserted. Is a perspective view of the main body member 100 as viewed from below, and FIG. 5D is a bottom view of the main body member 100. A partially enlarged view is added to FIG. 5 (c).

The main body member 100 has an upper portion 102 and a lower portion 104. The upper portion 102 is located above the lower portion 104. The upper portion 102 has an upper wall 106 and a receiving opening 108. Further, the upper portion 102 has a back opening 110 and a side wall 112.

The upper wall 106 has an upper surface 120 and a lower surface 122. The upper surface 120 is the outer surface of the upper wall 106. The lower surface 122 is the inner surface of the upper wall 106. The upper wall 106 has a through hole 124. The through hole 124 extends from the upper surface 120 to the lower surface 122. The through hole 124 communicates the internal space of the upper portion 102 with the outside of the main body member 100.

The receiving opening 108 receives the water discharge pipe f3. In the fixed state, the water discharge pipe f3 passes through the receiving opening 108, enters the main body member 100, and reaches the water discharge pipe insertion portion 530. The receiving opening 108 is provided on the lower side of the upper wall 106. The upper edge of the receiving opening 108 is composed of an upper wall 106. The receiving opening 108 is formed between the upper wall 106 and the lower wall 104.

In the upper portion 102, the back opening 110 is located on the opposite side of the receiving opening 108. In the fixed state, the water discharge pipe f3 inside the main body member 100 is visually recognized through the back opening 110.

The side wall 112 is formed between the upper surface 120 and the lower surface 104. The side wall 112 is divided by a receiving opening 108. Further, the side wall 112 is divided by the back opening 110. The side wall 112 constitutes a pair of left and right wall portions.

The lower portion 104 has a tubular wall portion 130, a lower contact portion 132, and an upper opening 134. The tubular wall portion 130 has an internal thread portion 136 on its inner surface. The female threaded portion 136 is screw-coupled to the threaded portion 524 of the lower member 520 (see FIGS. 2 and 3). The lower contact portion 132 projects radially outward of the tubular wall portion 130 from the outer surface of the tubular wall portion 130. In the fixed state, the lower contact portion 132 can come into contact with the faucet f1 (faucet body f2) from the lower side (see FIGS. 2 and 3). The upper opening 134 constitutes the inlet of the water discharge pipe insertion portion 530.

The main body member 100 has a first engaging portion E1. The first engaging portion E1 is provided on the lower surface 122 of the upper wall 106. In the present embodiment, the first engaging portion E1 is a convex portion 140. A plurality of (three) convex portions 140 are provided as the first engaging portion E1. The convex portion 140 projects downward. The convex portion 140 projects toward the pressing member 200 side.

The main body member 100 has a rotation restricting portion 142. The rotation regulation unit 142 regulates the rotation range of the rotation operation unit 300. The rotation restricting unit 142 defines the rotatable angle of the rotation operating unit 300. The rotation restricting portion 142 is provided on the upper surface 120. The rotation restricting portion 142 has a first portion 144 and a second portion 146. The first portion 144 is a protrusion. The second part 146 is a protrusion. When the lever portion 304 of the rotation operation unit 300 comes into contact with the rotation regulation unit 142, the rotation of the rotation operation unit 300 is restricted. The rotation restricting unit 142 defines the rotatable angle of the rotation operating unit 300.

The main body member 100 is integrated as a whole. The main body member 100 is an integral member. The main body member 100 is integrally molded as a whole. The main body member 100 may be composed of a plurality of integrated members.

6 (a) is a perspective view of the pressing member 200 as viewed from above, FIG. 6 (b) is a plan view of the pressing member 200, and FIG. 6 (c) is a side view of the pressing member 200. 6 (d) is a perspective view of the pressing member 200 as viewed from below, and FIG. 6 (e) is a bottom view of the pressing member 200.

The pressing member 200 has a rotary connecting portion 202 and a side wall portion 204. The side wall portion 204 is formed around the rotary connecting portion 202. The side wall portion 204 has a circumferential outer surface 208 and a circumferential inner surface 210. The pressing member 200 has a chipped portion 212 in which a part in the circumferential direction is missing. The chipped portion 212 is oriented toward the receiving opening 108 to facilitate the insertion of the water discharge pipe f3 into the hose connector 10.

The side wall portion 204 has a radial distance changing portion 214 in which the distance from the rotation axis Z2 gradually changes depending on the circumferential position. The radial distance changing portion 214 is formed in the lower portion of the side wall portion 204.

The pressing member 200 has a pressing contact surface M1. In the present embodiment, the pressing contact surface M1 is the lower end surface 216 of the pressing member 200. The pressing contact surface M1 is a lower end surface 216 of the radial distance changing portion 214. The pressing contact surface M1 is inclined with respect to the rotation axis Z2. As is well shown in FIG. 6 (c), the pressing contact surface M1 extends along a spiral. This spiral is formed around the rotation axis Z2 of the pressing member 200. As described above, the axial position of the pressing contact surface M1 (lower end surface 216) changes depending on the circumferential position thereof. In other words, the axial position of the pressing contact surface M1 changes depending on its phase. The pressing contact surface M1 (lower end surface 216) is changed so that the radial position becomes smaller as the axial position moves upward.

The rotary connecting portion 202 has a connecting hole 220, a concave portion 222, and a convex portion 224. The connecting hole 220 is a connecting hole having a non-circular cross-sectional shape. The cross-sectional shape of the recess 222 is non-circular. The concave portion 222 has an outer surface of a hole forming wall portion 226 forming a connecting hole 220 inside thereof as a first side surface and a circumferential inner surface 210 as a second side surface. The outer surface of the hole-forming wall portion 226 has the shape of the outer surface of a prism. The convex portions 224 are provided at two locations in the circumferential direction. The convex portion 224 extends between the hole forming wall portion 226 and the circumferential inner surface 210.

The pressing member 200 has a holding locking portion 230. The holding locking portion 230 is formed at the lower end of the connecting hole 220.

As shown in FIG. 2, the pressing contact surface M1 abuts on the water discharge pipe f3. The pressing contact surface M1 applies a pressing force including a water discharge direction component to the water discharge pipe f3. The pressing contact surface M1 comes into contact with the bent portion f5. The pressing contact surface M1 applies a pressing force including a water discharge direction component to the bent portion f5. The pressing contact surface M1 contacts the convex curved surface f51 of the bent portion f5. The pressing contact surface M1 applies a pressing force including a water discharge direction component to the convex curved surface f51. When the hose connector 10 tries to come out in the water discharge direction Dx due to water pressure, the component of the water discharge direction Dx in the pressing force increases.

In the fixed state, the angle formed by the straight line along the water discharge direction Dx and the straight line along the rotation axis Z2 is usually 30 ° or less. The angle formed by these two straight lines is the angle formed by the direction vector of the two straight lines.

FIG. 7A is a perspective view of the rotation operation unit 300 as viewed from above, FIG. 7B is a plan view of the rotation operation unit 300, and FIG. 7C is a rotation operation unit 300 of the rotation operation unit 300. 7 (d) is a side view, FIG. 7 (d) is a perspective view of the rotation operation unit 300 as viewed from below, and FIG. 7 (e) is a bottom view of the rotation operation unit 300.

The rotation operation unit 300 has a base portion 302, a lever portion 304, and a rotation connection portion 306. The base 302 has a disk shape. The lever portion 304 extends radially outward from the base portion 302. Typically, the rotation operation unit 300 is rotated by operating the lever unit 304 with a finger. The rotary connecting portion 306 is connected to the pressing member 200 and the locking member 400 so as not to rotate relative to each other.

The rotary connecting portion 306 has a convex portion 308 and a connecting shaft 310. The convex portion 308 is formed on the lower surface 312 of the base portion 302. As is well shown in FIG. 7 (e), the convex portions are formed at four points in the circumferential direction. The convex portion 308 is coupled to the locking member 400. The connecting shaft 310 extends downward from the lower surface 312 of the base 302. The connecting shaft 310 has a non-circular cross-sectional shape. The cross-sectional shape of the connecting shaft 310 does not have rotational symmetry. The phase relationship between the rotation operation unit 300 and the pressing member 200 is specified by forming the cross-sectional shape without rotational symmetry. The connecting shaft 310 is fitted in the connecting hole 206 of the pressing member 200.

As described above, the rotation operation unit 300 (base 302) is arranged outside the main body member 100. The rotation operation unit 300 (base 302) is arranged on the upper wall 106 of the main body member 100. The rotary connecting portion 306 is configured to pass through the through hole 124 of the upper wall 106, and is coupled to the pressing member 200 and the locking member 400 located inside the main body member 100 (lower side of the upper wall 106). There is.

The rotation operation unit 300 has a holding unit 314. The holding portion 314 is formed at the tip end portion of the connecting shaft 310. The holding portion 314 constitutes a constricted portion.

The rotation operation unit 300 has a rotation axis Z3. The rotation axis Z3 coincides with the rotation axis Z2 of the pressing member 200. The pressing member 200 rotates together with the rotation operation unit 300. The pressing member 200 rotates integrally with the rotation operation unit 300.

8 (a) is a perspective view of the locking member 400 as viewed from above, FIG. 8 (b) is a plan view of the locking member 400, and FIG. 8 (c) is a side view of the locking member 400. FIG. 8D is a perspective view of the locking member 400 as viewed from below.

The locking member 400 has an annular portion 402 and a rotary connecting portion 404. The annular portion 402 has an annular shape.

The locking member 400 has a second engaging portion E2. The second engaging portion E2 is formed on the upper surface of the annular portion 402. The second engaging portion E2 is composed of a plurality of convex portions (teeth) protruding upward. The second engaging portion E2 is a plurality of convex portions arranged in an annular shape. Each of the protrusions extends in the radial direction. These plurality of convex portions are lined up in the circumferential direction without any gap.

The rotary connecting portion 404 has a through hole 408, a recess 410, a downward extending portion 412, and a recess 414. The through hole 408 is provided inside the annular portion 402 in the radial direction. The recess 410 is formed on the upper surface of the locking member 400. An annular protrusion 416 is formed between the annular portion 402 and the through hole 408, and a recess 410 is formed in the annular protrusion 416. The recesses 410 are provided at a plurality of locations (4 locations) in the circumferential direction. The downward extending portion 412 extends downward from the annular portion 402. The outer surface of the downward extending portion 412 is a circumferential surface. The inner surface of the downward extending portion 412 has the shape of the surface of a prism. The recess 414 is a recess. The recess 414 is formed on the lower surface of the annular portion 402. The recesses 414 are formed at a plurality of locations (two locations). The annular protrusion 416 is inserted into the through hole 124 of the main body member 100.

As shown in FIG. 4, the urging member 500 is arranged between the locking member 400 and the pressing member 200. The connecting shaft 310 of the rotation operation unit 300 is inserted with the urging member 500. The urging member 500 always urges the locking member 400 upward. The urging member 500 urges the locking member 400 toward the first engaging portion E1 side. As will be described later, the locking member 400 has a first position where the second engaging portion E2 and the first engaging portion E1 are engaged, and the engagement between the second engaging portion E2 and the first engaging portion. Is configured to be able to move to the second position where is released. The urging member 500 urges the locking member 400 toward the first position. The direction in which the locking member 400 is pressed against the first engaging portion E1 by the urging member 500 is the same as the rotation axis Z2.

The relationship between the main body member 100, the pressing member 200, the rotation operation unit 300, and the locking member 400 is as follows.

The base 302 of the rotation operation unit 300 is placed on the upper wall 106 of the main body member 100. In the main body member 100, the base portion 302 and the lever portion 304 are exposed to the outside. The connecting shaft 310 and the convex portion 308 are inserted through the through hole 124, and the rotation operating portion 300 rotates about the connecting shaft 310. The connecting shaft 310 passes through the through hole 408 of the locking member 400, further passes through the urging member 500, and is fitted into the connecting hole 220 of the pressing member 200. The connecting shaft 310, as the rotating connecting portion 306, transmits the rotation of the rotating operating portion 300 to the locking member 400 and the pressing member 200. The rotation operation unit 300 rotates together with the locking member 400 and the pressing member 200.

The holding locking portion 230 of the pressing member 200 is engaged with the holding portion 314 of the rotation operating portion 300 (see FIG. 3). The holding locking portion 230 is composed of claws provided at a plurality of locations (three locations) in the circumferential direction (see FIG. 6D), and these claws enter the holding portion 314 (constricted portion). By this engagement, the pressing member 200 is held by the rotation operation unit 300, and the axial position of the pressing member 200 is maintained inside the main body member 100.

The convex portion 308 (see FIG. 7B) of the rotation operating portion 300 is engaged with the concave portion 410 (FIG. 8A) of the locking member 400. The annular protrusion 416 of the locking member 400 is inserted into the through hole 124 of the main body member 100. Inside the through hole 124, the convex portion 308 and the concave portion 410 are engaged with each other. This engagement contributes to the integral rotation of the locking member 400 and the rotation operation unit 300. The outer peripheral surface of the annular protrusion 416 is in contact with the inner peripheral surface of the through hole 124, and the rotation center lines of the pressing member 200, the rotation operating portion 300, and the locking member 400 are defined.

The concave portion 414 of the locking member 400 (see FIG. 8A) is engaged with the convex portion 224 (FIG. 6A) of the pressing member 200. This engagement contributes to the integral rotation of the locking member 400 and the pressing member 200.

The downward extending portion 412 of the locking member 400 (see FIG. 8D) is engaged with the recess 222 of the pressing member 200. This engagement contributes to the integral rotation of the locking member 400 and the pressing member 200.

In this way, the pressing member 200, the rotation operating portion 300, and the locking member 400 rotate integrally due to the engagement between the rotating connecting portions provided on the members 200, 300, and 400. However, the locking member 400 is attached with play in the axial direction. FIG. 2 shows a gap S1 between the bottom surface of the recess 222 and the lower end surface of the downward extending portion 412. This gap S1 secures this play. This play can be set by adjusting the axial distance between the pressing member 200 held by the rotation operation unit 300 and the upper wall 106. Due to this play, the locking member 400 can move (slightly) axially with respect to the pressing member 200. The locking member 400 can move (slightly) axially with respect to the upper wall 106 (lower surface 122). In the locking member 400, the first position where the second engaging portion E2 engages with the first engaging portion E1 and the engagement between the second engaging portion E2 and the first engaging portion E1 are released. It can be moved to two positions. This position change does not impair the integral rotation of the pressing member 200, the rotating operation unit 300, and the locking member 400. The pressing member 200, the rotation operation unit 300, and the locking member 400 rotate integrally regardless of the axial position of the locking member 400.

As described above, the main body member 100 is provided with the first engaging portion E1 (see FIG. 5C). Further, the locking member 400 is provided with a second engaging portion E2 (FIG. 8A). The first engaging portion E1 projects toward the second engaging portion E2 side (lower side). The first engaging portion E1 and the second engaging portion E2 can be engaged with each other. When the first engaging portion E1 and the second engaging portion E2 are engaged, the locking member 400 cannot rotate with respect to the main body member 100. The engagement between the first engaging portion E1 and the second engaging portion E2 hinders the rotation of the locking member 400. That is, this engagement hinders the rotation of the pressing member 200, the rotation operating portion 300, and the locking member 400. The second engaging portion E2 is constantly pressed against the first engaging portion E1 by the urging member 500. The second engaging portion E2 is always engaged with the first engaging portion E1 by the urging member 500.

FIG. 9 is a perspective view of the hose connector 10 in the fixed state and the released state. FIG. 10 is a front view of the hose connector 10 in the fixed state and the released state as viewed from the faucet side. FIG. 11 is a cross-sectional view of the hose connector 10 in the fixed state and the released state. The fixed state of FIG. 11 is a cross-sectional view taken along the line AA of FIG. 10, and the released state of FIG. 11 is a cross-sectional view taken along the line BB of FIG.

As shown in FIG. 9, in the transition from the fixed state to the released state, the rotation operation unit 300 is rotated in the direction R1. This direction R1 is called the loosening direction. In the transition from the released state to the fixed state, the rotation operation unit 300 is rotated in the direction R2. This direction R2 is called the tightening direction.

[Fixed state]
The hose connector 10 is fixed to the faucet f1 by pressing the water discharge pipe f3 with the pressing member 200 in a state where the water discharge pipe f3 is inserted into the water discharge pipe insertion portion 530 (see FIG. 2). As described above, the axial position of the pressing contact surface M1 of the pressing member 200 changes depending on the circumferential position of the pressing contact surface M1. Therefore, the distance between the water discharge pipe f3 and the pressing contact surface M1 fluctuates due to the rotation of the pressing member 200. As shown in FIGS. 2 and 3, the water discharge pipe f3 extends downward from the faucet main body f2 side toward the water discharge port f6. Therefore, in the vicinity of the receiving opening 108, the water discharge pipe f3 is located relatively on the upper side. By rotating the pressing member 200 in the tightening direction R2, the axial position of the pressing contact surface M1 is lowered at the circumferential position on the receiving opening 108 side (see FIGS. 9 to 11). By rotating the pressing member 200, the pressing contact surface M1 comes into contact with the water discharge pipe f3.

In the rotation of the tightening direction R2, the rotation operation unit 300 is rotated until the pressing contact surface M1 abuts on the water discharge pipe f3. Further, the rotation operation unit 300 is rotated in the tightening direction R2 until the hose connector 10 is fixed. As described above, the second engaging portion E2 is always engaged with the first engaging portion E1 by the urging member 500. By operating the rotation operation unit 300 with a force that overcomes this engaging force, the rotation operation unit 300 can be rotated. Due to the play described above, the locking member 400 can move to a position (second position) where the engagement between the second engaging portion E2 and the first engaging portion E1 is released. By increasing the operating force, the locking member 400 is lowered against the urging force of the urging member 500, and the rotation operating portion 300 rotates. The urging force (spring constant) of the urging member 500 is set so that this operating force does not become excessive. The length of the lever portion 304 is set so that this operating force is not excessive.

When water is discharged from the faucet f1, the faucet f10 receives a force in the water discharge direction due to the water pressure. Due to this force, the pressing force of the pressing contact surface M1 increases. This pressing force contains an axially downward component. When the pressing force is increased, the second engaging portion E2 is strongly pressed against the first engaging portion E1. The reaction force of this pressing force includes an axially upward component. The water pressure pushes the locking member 400 upward, and the contact pressure between the first engaging portion E1 and the second engaging portion E2 increases. As a result, the engaging force between the engaging portions E1 and E2 increases, and the rotation operating portion 300 becomes difficult to rotate in the loosening direction R1. The hose connector 10 is hard to come off due to water pressure. The hose connector 10 is excellent in water pressure resistance.

The urging member 500 may be omitted. When the water pressure is acting, the contact pressure between the first engaging portion E1 and the second engaging portion E2 becomes high even if the urging member 500 is not present. Therefore, the water pressure resistance performance is achieved even without the urging member 500.

In this embodiment, the urging member 500 is provided. As described above, the locking member 400 has play in the axial direction. Due to this play, in the locking member 400, the engagement between the second engaging portion E2 and the first engaging portion E1 is released from the first position where the second engaging portion E2 engages with the first engaging portion E1. It can move (descend) to the second position where it is to be. Therefore, the rotation operation unit 300 can be rotated against the engagement between the first engagement portion E1 and the second engagement portion E2. On the other hand, this play can cause loosening. In particular, in a situation where water pressure is not acting, the contact pressure between the engaging portions E1 and E2 becomes weak, and the rotation operating portion 300 tends to rotate in the loosening direction R1. By strongly tightening the rotation operation portion 300, the contact pressure between the engaging portions E1 and E2 increases, but if the posture or position of the hose connector 10 fluctuates even slightly, the pressing contact surface M1 and the water discharge pipe f3 come into contact with each other. The positional relationship may change and the contact pressure may decrease. By urging the second engaging portion E2 toward the first engaging portion E1, the urging member 500 maintains the engaging force between the engaging portions E1 and E2 even when there is no water pressure, and loosening occurs. It is suppressed.

[Release status]
To release the fixed state, the rotation operation unit 300 is rotated in the loosening direction R1. Due to this rotation, the phase of the pressing member 200 changes, and the pressing contact surface M1 rises at the circumferential position on the receiving opening 108 side (see FIGS. 9 to 11). As a result, the pressing contact surface M1 is separated from the water discharge pipe f3 (see FIG. 3).

In the fixed state, the pressing contact surface M1 presses the water discharge pipe f3. The engaging force between the engaging portions E1 and E2 is high. That is, this engaging force is sufficiently high so that the engaging force is not released by an involuntary force or various vibrations regardless of the presence or absence of water pressure (hydrostatic pressure and hydrodynamic pressure). However, especially when water pressure is not acting, the rotation operation unit 300 can be rotated in the loosening direction R1 against this engaging force. By applying an operating force equal to or higher than a predetermined value, the rotating operating portion 300 is rotated in the loosening direction R1 while disengaging the engaging portions E1 and E2 against the urging force of the urging member 500. be able to. The contact pressure between the engaging portions E1 and E2 is smaller in the state where the water pressure is not acting than in the state where the water pressure is acting. The operating force required for rotation in the loosening direction R1 is smaller in the state where the water pressure is not acting than in the state where the water pressure is acting. It is difficult to disengage the engaging portions E1 and E2 from each other in a situation where water pressure is applied. Therefore, it is possible to prevent the disengagement due to an operation error in the water flow state in which the water pressure is applied.

In the state where the water discharge pipe f3 is inserted, the hose connector 10 can hardly rotate with respect to the water discharge pipe f3. However, since there is a slight gap between the receiving opening 108 and the water discharge pipe f3, the hose connector 10 can rotate slightly with respect to the faucet f1. When the rotation operation unit 300 is rotated in the loosening direction R1 from the fixed state, not the rotation operation unit 300 but the entire hose connector 10 can rotate slightly with respect to the faucet f1. Due to the movement of the entire hose connector 10, the positional relationship between the water discharge pipe f3 and the pressing contact surface M1 may change slightly, and the pressing force applied to the water discharge pipe f3 by the pressing contact surface M1 may decrease. .. Therefore, even if the rotation operation portion 300 is strongly tightened in the fixed state, the contact pressure between the engagement portions E1 and E2 decreases when the rotation operation portion 300 is to be rotated in the loosening direction R1. sell. Further, even when the rotation operation unit 300 is difficult to rotate, when an operation force is repeatedly applied to the rotation operation unit 300, the posture or position of the hose connector 10 changes, and the water discharge pipe f3 and the pressing contact surface M1 Changes in the positional relationship of the can progress gradually. Further, each member of the hose connector 10 is bent (elastically deformed). Therefore, even if the rotation operation unit 300 is strongly tightened in the fixed state, the rotation operation unit 300 can be rotated in the loosening direction R1 relatively easily.

As described above, the play in the locking member 400 contributes to the reduction of the operating force required for rotation in the loosening direction R1. However, this play may not be necessary. For example, by making the convex portions of the first engaging portion E1 and / or the second engaging portion E2 a material that can be easily elastically deformed, the engaging portions E1 and E2 do not displace the locking member 400. It is possible to rotate in the loosening direction R1 against the engaging force of. Further, as described later, even when the engagement between the engaging portions E1 and E2 is a frictional engagement, the engaging force between the engaging portions E1 and E2 is resisted without the displacement of the locking member 400. It is possible to rotate in the loosening direction R1. Without this play, the urging member 500 may be unnecessary.

12 (a) is a perspective view of the pressing member 250 as viewed from above, FIG. 12 (b) is a plan view of the pressing member 250, and FIG. 12 (c) is a side view of the pressing member 250. 12 (d) is a perspective view of the pressing member 250 as viewed from below, and FIG. 12 (e) is a bottom view of the pressing member 250.

The pressing member 250 has a rotary connecting portion 252 and a side wall portion 254. The side wall portion 254 is formed around the rotary connecting portion 252. The side wall portion 254 has a circumferential outer surface 258 and a circumferential inner surface 260. The pressing member 250 has a chipped portion 262 in which a part in the circumferential direction is missing.

The side wall portion 254 has a radial distance changing portion 264 in which the distance of the pressing member 250 from the rotation axis Z2 gradually changes depending on the circumferential position. The radial distance changing portion 264 is formed in the lower portion of the side wall portion 254.

The pressing member 250 has a pressing contact surface M2. In the present embodiment, the pressing contact surface M2 is the lower end surface 266 of the pressing member 250. The pressing contact surface M2 is a lower end surface 266 of the radial distance changing portion 264. The pressing contact surface M2 extends around the rotation axis Z2. The pressing contact surface M2 has a portion inclined with respect to the rotation axis Z2. Further, the pressing contact surface M2 has a portion perpendicular to the rotation axis Z2. As is well shown in FIG. 12 (c), the pressing contact surface M2 is formed in a stepped shape. The pressing contact surface M2 has a portion whose axial position changes as it moves in the circumferential direction. The axial position of the pressing contact surface M2 (lower end surface 266) changes gradually or stepwise depending on its circumferential position. The axial position of the pressing contact surface M2 changes depending on its phase.

The rotary connecting portion 252 has a connecting hole 270, a concave portion 272, and a convex portion 274. The connecting hole 270 is a connecting hole having a non-circular cross-sectional shape. The cross-sectional shape of the recess 272 is non-circular. The outer surface of the hole-forming wall portion 276 that forms the connecting hole 270 inside the recess 272 is the first side surface, and the circumferential inner surface 260 is the second side surface. The outer surface of the hole-forming wall portion 227 has the shape of the outer surface of a prism. The convex portions 274 are provided at two locations in the circumferential direction. The convex portion 274 extends between the hole forming wall portion 276 and the circumferential inner surface 260.

The difference between the pressing member 250 (FIGS. 12A to 12E) and the above-mentioned pressing member 200 (FIGS. 6A to 6e) is the shape of the pressing contact surface. The axial position of the pressing contact surface M1 of the first embodiment and the pressing contact surface M2 of the second embodiment changes depending on the circumferential position. On the pressing contact surface M1 and the pressing contact surface M2, the distance from the water discharge pipe f3 (bent portion f5) fluctuates due to the rotation of the pressing member about the rotation axis Z2.

As shown in FIG. 6D, the pressing contact surface M1 has a first end t1 and a second end t2. From the first end t1 to the second end t2, the axial position of the second end t2 is lower than the axial position of the first end t1. The axial position of the pressing contact surface M1 gradually decreases as it approaches the second end t2. The pressing contact surface M1 is inclined with respect to the axial direction at all circumferential positions. As shown in FIG. 12D, the pressing contact surface M2 has a first end t1 and a second end t2. From the first end t1 to the second end t2, the axial position of the pressing contact surface M2 gradually or gradually decreases as it approaches the second end t2. The pressing contact surface M2 has a portion perpendicular to the axial direction and a portion inclined with respect to the axial direction. On the pressing contact surface M1, the axial position is lowered as the circumferential position approaches the second end t2. The pressing contact surface M2 has a portion where the axial position is lowered as the circumferential position approaches the second end t2 and a portion where the axial position is constant. The pressing contact surface M1 and the pressing contact surface M2 do not have a portion where the axial position rises as the circumferential position approaches the second end t2.

The pressing contact surface M1 and the pressing contact surface M2 are slopes and / or staircase surfaces formed along a spiral. The slope is a surface that is inclined with respect to the rotation axis Z2. The angle of the slope with respect to the rotation axis Z2 may be constant or may change. This slope may be a flat surface or a curved surface. The staircase surface is a surface in which surfaces perpendicular to the rotation axis Z2 and surfaces not perpendicular to the rotation axis Z2 are alternately arranged. A plane that is not perpendicular to the rotation axis Z2 includes a plane that includes the rotation axis Z2, a plane that is parallel to the rotation axis Z2, and a plane that is inclined with respect to the rotation axis Z2. Such a pressing contact surface M1 and a pressing contact surface M2 can hold down the water discharge pipe f3 in the fixed state, and do not hinder the insertion of the water discharge pipe f3 into the hose connector 10 in the released state.

By engaging the first engaging portion E1 and the second engaging portion E2, the relative movement between the first engaging portion E1 and the second engaging portion E2 is hindered. As a result, the locking member 400 does not rotate with respect to the main body member 100. That is, the pressing member 200 does not rotate with respect to the main body member 100. The fixed state is maintained by engaging the engaging portions E1 and E2 with each other.

In the above embodiment, the engagement between the first engaging portion E1 and the second engaging portion E2 is a shape engagement by engaging the shapes with each other. The term "shape engagement" is as defined herein. Typical examples of shape engagement are engagement between convex portions and engagement between convex portions and concave portions. This shape engagement includes meshing engagement in which one or more protrusions as the first engaging portion E1 and a plurality of protrusions as the second engaging portion E2 are meshed with each other.

The engagement between the first engaging portion E1 and the second engaging portion E2 is not limited to the shape engagement. For example, the engagement between the first engaging portion E1 and the second engaging portion E2 may be a frictional engagement due to a frictional force. In this case, the first engaging portion E1 and the second engaging portion E2 may be, for example, a flat surface. By increasing the pressing force of the second engaging portion E2 with respect to the first engaging portion E1 due to the water pressure, the normal force on the contact surface between the engaging portions E1 and E2 increases, and the frictional force (static frictional force) increases. .. Even when the first engaging portion E1 and the second engaging portion E2 are engaged by a frictional force (static frictional force), the same effect as that of the above embodiment can be obtained.

In the present embodiment, the first engaging portion E1 is provided on the main body member 100. The first engaging portion E1 may be provided on a member different from the main body member 100. The first engaging portion E1 is fixed to or engaged with the main body member 100. In the above embodiment, the first engaging portion E1 is provided on the main body member 100 itself. The member having the first engaging portion E1 is a member different from the main body member 100, and this separate member may be fixed to the main body member 100. The member having the first engaging portion E1 is a member different from the main body member 100, and this separate member may be engaged with the main body member 100. In this case, this engagement may be a shape engagement or a frictional engagement. For example, this separate member may be a rubber member arranged so that the upper surface and the lower surface do not have irregularities and can rotate freely independently. The upper surface (flat surface) of the rubber member may be frictionally engaged with the main body member 100. Further, the lower surface (flat surface) of the rubber member may be frictionally engaged with the flat second engaging portion E2 as the first engaging portion E1.

In the above embodiment, the rotation operation unit 300 has a lever unit 304. The lever portion 304 may be omitted. For example, the rotation operation unit 300 may be a dial. The lever portion 304 increases the distance from the rotation axis Z3 and increases the moment of operating force. Further, the lever portion 304 protruding outward in the radial direction makes it easier to apply a force to the rotation operation portion 300. As a result, the operating force can be reduced. As described above, when rotating the rotation operation unit 300 in the loosening direction R1 from the fixed state, a relatively large operating force is required. The lever portion 304 can suppress the operating force when releasing the fixed state.

In FIG. 7E, the double-headed arrow D3 indicates the distance from the rotation axis Z3 to the tip of the lever portion 304. This distance is measured along the direction perpendicular to the rotation axis Z3. From the viewpoint of suppressing the operating force and improving the operability, the distance D3 is preferably 18 mm or more, more preferably 19 mm or more, and more preferably 20 mm or more. From the viewpoint of miniaturization of the hose connector 10, the distance D3 is preferably 23 mm or less, more preferably 22 mm or less, and more preferably 21 mm or less.

In the above-mentioned Utility Model Application Publication No. 49-7477, the hose joint is attached to the faucet by tightening the fixing screw (bolt). If the lead angle of the fixing screw is large, loosening is likely to occur due to water pressure or vibration when the hose is pulled. Therefore, in the publication of Utility Model Application Publication No. 49-7477, the lead angle of the fixing screw is small. If the lead angle is small, the number of screwdrivers required to tighten the fixing screw increases, resulting in poor operability. In the present embodiment, loosening is unlikely to occur due to the rotation stopper by the engaging portions E1 and E2. Therefore, the lead angle of the pressing contact surface can be increased.

From the viewpoint of enabling fixing at a small rotation angle and improving operability, the lead angle θ (see FIG. 6C) of the pressing contact surface is preferably 10 ° or more, more preferably 11 ° or more, and 12 More than ° is more preferable. From the viewpoint of resistance to loosening, the lead angle θ is preferably 45 ° or less, more preferably 40 ° or less, and even more preferably 35 ° or less. In the pressing contact surface M1 of the first embodiment, the lead angle θ is 13 °. The lead angle θ is an angle formed by a plane perpendicular to the rotation axis Z2 and a pressing contact surface. The lead angle θ may be constant or may change.

The lead angle θ in the present application may be an average lead angle. Based on this concept of the average lead angle, the lead angle θ can also be determined, for example, by the pressing contact surface M2 shown in FIGS. 12A to 12E. When the length of the pressing contact surface in the longitudinal direction is L1 and the axial distance between the first end t1 and the second end t2 is D1 (FIG. 6 (c)), the average lead angle θa is expressed by the following equation. Can be calculated by solving.
tanθa = D1 / L1
The length L1 is the length (distance length) when the center line formed by the set of the center points in the width direction of the pressing contact surface is viewed in a plan view. This plan view means the bottom view of FIG. 6 (e).

In the present embodiment, since the lead angle θ can be increased, the rotation angle of the rotation operation unit 300 can be reduced. Further, by making the rotation angle of the rotation operation unit 300 smaller than 360 °, it is possible to avoid a situation in which the rotation operation unit 300 (lever unit 304) hits the faucet f1 (handle f4) and the operation is hindered. (See FIG. 1). Further, by making the rotation angle of the rotation operation unit 300 smaller than 360 °, the pressing member 200 can be provided with the chipped portion 212 (see FIGS. 6A to 6E), and the hose connector 10 The water discharge pipe f3 can be easily inserted into the water discharge pipe f3. From these viewpoints, the rotatable angle of the rotation operation unit 300 is preferably 300 ° or less, more preferably 280 ° or less, and more preferably 260 ° or less. From the viewpoint of avoiding an excessive lead angle θ, the rotatable angle of the rotation operating unit 300 is preferably 180 ° or more, more preferably 200 ° or more, and more preferably 220 ° or more. In the hose connector 10, the rotatable angle of the rotating operation unit 300 was set to 240 °.

In FIG. 6E, the double-headed arrow θ1 indicates the circumferential angle at which the pressing contact surface exists. This angle θ1 is a circumferential angle from the first end t1 to the second end t2. Considering the function of the pressing contact surface, it is not necessary to make this angle θ1 larger than the rotatable angle of the rotating operation unit 300. This angle θ1 is preferably equal to or less than the rotatable angle of the rotation operation unit 300. A preferable range of the rotatable angle and lead angle θ of the rotation operation unit 300, versatility for different faucets, and an opening (chip 212) in the pressing member 200 to facilitate insertion of the water discharge pipe f3. From the viewpoint, the angle θ1 is preferably 255 ° or less, more preferably 235 ° or less, and more preferably 215 ° or less. From the viewpoint of avoiding an excessive lead angle θ, the angle θ1 is preferably 135 ° or more, more preferably 155 ° or more, and more preferably 175 ° or more. In the hose connector 10, the angle θ1 was set to 195 °.

The above-mentioned Japanese Patent Application Laid-Open No. 2017-219194 discloses an embodiment having an adjusting unit and a reverse rotation preventing member. In this embodiment, the reverse rotation of the adjusting portion is prevented and it becomes difficult to loosen, but since the reverse rotation is prevented, it may be necessary to remove the upper member from the lower member in order to release the fixing. In this case, it is essential to divide the main body into an upper member and a lower member. Compared to the case where the main body portion is integrated, in the main body portion in which the upper member and the lower member are engaged, movement between the members may occur due to the engaging portion. Due to the movement between the members, the contact portion in contact with the faucet can move in the direction away from the faucet. This movement reduces the fixation of the hose fitting.

In the above embodiment, the rotation operation unit 300 can be rotated in the loosening direction R1 from the fixed state. Therefore, the main body member can be integrated as a whole. As a result, the pressing contact surface M1 is difficult to move in the fixed state, and loosening is unlikely to occur.

In the above-mentioned Japanese Patent Application Laid-Open No. 2017-219194, since a plurality of members are used in combination, it may be difficult to intuitively understand the usage method, especially at the start of use. Moreover, since it is divided into a plurality of members, there is a risk of losing the members. Further, when another member such as a ring engaging body is used, there is a risk that the member may be damaged by stepping on the dropped member. In the above embodiment, since there is no member separated at the time of use, such a problem does not occur.

The number of convex portions 140 constituting the first engaging portion E1 is not limited. The number of convex portions 140 may be one or a plurality. The number of convex portions 140 is preferably 2 or more, and more preferably 3 or more, from the viewpoint of preventing the pressing member 200 from rotating, and further, from the viewpoint of reserve when a part of the convex portions 140 is damaged or worn. By suppressing the number of convex portions 140, the minimum force required for operation is reduced, and operability is improved. Further, by suppressing the number of convex portions 140, molding by a mold becomes easy. From these viewpoints, the number of convex portions 140 is preferably 10 or less, more preferably 8 or less, and more preferably 6 or less.

The hose connector 10 corresponds to a horizontal faucet, a horizontal faucet (universal type), and a horizontal faucet (rotating spout). As mentioned above, these three types of faucets are specified in JIS B 2061. Further, other faucets (chemical faucets, etc.) having a spout pipe f3 and a bent portion f5 similar to these faucets can also be used. In addition, by adjusting the dimensions, it is possible to handle standing faucets and the like.

As shown in FIG. 11, the water discharge pipe insertion portion 530 (inner surface) forms a space in which the upper forming portion 532 adjacent to the upper side of the packing 510 and the deformed portion are accommodated when the packing 510 is deformed by the water discharge pipe f3. It has a space forming portion 534, a lower forming portion 536 adjacent to the lower side of the space forming portion 534, and an inner surface recess 538 adjacent to the lower side of the lower forming portion 536. The lower forming portion 536 is a protrusion. Since the space forming portion 534 and the inner surface concave portion 538 form a concave portion, the lower forming portion 536 between them constitutes a protrusion. A downward surface 540 is formed at the boundary between the lower forming portion 536 and the inner surface recess 538. The downward surface 540 is the lower surface of the lower forming portion 536. A rib 542 protruding inward of the water discharge pipe insertion portion 530 is formed on the lower side of the inner surface recess 538. The rib 542 extends axially.

As shown in FIGS. 2 and 3, in the case of a horizontal faucet, the tip end portion of the water discharge pipe f3 abuts on the lower forming portion 536 in the fixed state. Further, depending on the posture of the hose connector 10, the water discharge pipe f3 of the horizontal faucet may also come into contact with the upper forming portion 532. In the case of a horizontal faucet (universal type), the tip end portion of the water discharge pipe f3 is arranged in the inner surface recess 538 in the fixed state. An annular protruding edge (flange portion) is formed along the edge of the spout port f6 at the tip of the spout pipe f3 of the horizontal faucet (universal type). This annular protruding edge engages the inner surface recess 538 (downward surface 540). In the case of a horizontal faucet (rotating spout), the tip of the spout pipe f3 abuts on the lower rib 542 of the inner surface recess 538 in the fixed state.

From the viewpoint of increasing versatility for faucets having different shapes, the axial distance D1 (FIG. 6 (c)) is preferably 5 mm or more, more preferably 6 mm or more, and more preferably 7 mm or more. Considering the preferable ranges of the lead angle θ and the rotatable angle, the axial distance D1 is preferably 10 mm or less, more preferably 9 mm or less, and more preferably 8 mm or less.

When the hose connector 10 tries to come out of the faucet f1 by water pressure, the hose connector 10 tries to rotate along the bend of the bent portion f5. The reaction force of the contact force of the lower contact portion 132 gives the hose connector 10 a rotational moment in the direction opposite to the rotation. The lower contact portion 132 suppresses the rotation of the hose connector 10 that occurs when the hose connector 10 comes out of the faucet f1. The lower contact portion 132 can effectively suppress the hose connector 10 from coming off due to water pressure. It is preferable that the lower contact portion 132 abuts on the faucet f1 (faucet main body f2) from the lower side in a fixed state attached to the horizontal faucet. It is preferable that the lower contact portion 132 abuts on the faucet f1 (faucet body f2) from the lower side in a fixed state attached to the horizontal faucet (rotating spout).

As described above, in the hose connector 10, since the integrated main body member 100 covers the water discharge pipe f3 (bent portion f5) of the faucet f1 as a whole, the rigidity of the main body member 100 is high, and the engaging portion E1 , E2 are easy to maintain engagement with each other. Therefore, loosening from the fixed state is unlikely to occur. Since the second engaging portion E2 that engages with the first engaging portion E1 is provided between the first engaging portion E1 and the pressing member 200, the pressing force applied by the pressing member 200 to the water discharge pipe f3 The reaction force is transmitted between the first engaging portion E1 and the second engaging portion E2, and the contact pressure between the first engaging portion E1 and the second engaging portion E2 increases. That is, the reaction force of the pressing force applied by the pressing member 200 to the water discharge pipe f3 is transmitted to the second engaging portion E2 to press the second engaging portion E2 against the first engaging portion E1. The transmission from the pressing member 200 to the second engaging portion E2 may be a direct transmission or an indirect transmission via another member. As the main body member 100 tries to move in the water discharge direction Dx due to water pressure, the engaging force between the engaging portions E1 and E2 increases. Therefore, the water pressure resistance in the connection to the faucet f1 is improved.

In the above embodiment, the locking member 400 having the second engaging portion E2 is a member different from the pressing member 200, but these may be integrated members. In other words, the pressing member 200 may have the second engaging portion E2. The pressing member 200, the rotation operation unit 300, and the locking member 400 rotate integrally, and these may be integrated members.

The pressing contact surfaces M1 and M2 are formed so that the distance from the water discharge pipe f3 fluctuates due to the rotation of the pressing member. The pressing contact surfaces M1 and M2 are provided around the rotation axis Z2 of the pressing member. For example, the pressing contact surfaces M1 and M2 may have a portion inclined with respect to the rotation axis Z2. Further, even when the pressing contact surface does not have a portion inclined with respect to the rotation axis Z2, for example, by making the pressing contact surface stepped, the pressing member rotates to discharge the pressing contact surface. The distance to the water pipe f3 can fluctuate. Due to this variation in distance, the hose connector 10 can be tightened to the water discharge pipe f3, and the water discharge pipe f3 can be received.

When the axial position of the pressing member is measured at one position in the circumferential direction, the axial position of the pressing contact surface changes due to the rotation of the pressing member. For example, at the circumferential center position CP of the receiving opening 108 (see FIGS. 5B and 5D), the axial position of the pressing contact surface changes. From the viewpoint of increasing versatility for faucets having different shapes, the change width of the axial position of the pressing contact surface at the circumferential center position CP is preferably 5 mm or more, more preferably 6 mm or more, and more preferably 7 mm or more. Considering the preferable ranges of the lead angle and the rotatable angle, the change width of the axial position of the pressing contact surface at the circumferential center position CP is preferably 10 mm or less, more preferably 9 mm or less, and more preferably 8 mm or less. In the pressing contact surface M1 and the pressing contact surface M2, the change width is substantially equal to the axial distance D1.

As is well shown in FIG. 9, the rotation restricting portion 142 is fixed to the main body member 100. The rotation restricting portion 142 is integrally molded as a part of the main body member 100. The rotation restricting portion 142 regulates the lever portion 304 from rotating toward the faucet f1 side, and prevents the lever portion 304 from hitting the faucet f1 (handle f4). The first portion 144 prevents the fixed state from being released due to excessive rotation of the rotation operation unit 300. The second portion 146 orients the chipped portion 212 of the pressing member 200 toward the receiving opening 108 so that the water discharge pipe f3 can be received.

The locking member 400 having the second engaging portion E2 moves to the first position where the second engaging portion E2 and the first engaging portion engage and the second position where the engagement is released. Since it is configured so that it can be used, it is prevented that the operating force of the rotation operation against the engagement between the engaging portions E1 and E2 becomes excessive. The urging member 500 that urges the second engaging portion E2 to the first position maintains the engagement between the engaging portions E1 and E2, and loosening is unlikely to occur even when water pressure is not applied. By making the locking member 400 a separate member from the pressing member 200, it is possible to configure the locking member 400 to move with respect to the pressing member 200. By increasing the lead angle of the pressing contact surface to 10 ° or more, the tightening operation becomes easy. Further, even if the lead angle is large, it is difficult to loosen due to the detent mechanism by the engaging portions E1 and E2. Due to the large lead angle, even if the rotatable angle of the rotating operation unit 300 is set to 300 ° or less, it is possible to handle a plurality of faucets. Further, by setting the rotatable angle of the rotation operation unit 300 to 300 ° or less, it is possible to prevent the lever unit 304 from hitting the handle f4 of the faucet f1. The rotatable range of the rotation operation unit 300 is limited so that the circumferential position of the lever portion 304 cannot reach the circumferential center position CP (see FIGS. 5 (b) and 5 (d)).

Examples of the material of the pressing member include resin and metal. Resin is preferable from the viewpoint of suppressing damage to the faucet. 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 each of the above-described embodiments, the material of the pressing member is polyacetal (POM).

Examples of the material of the main body member include resin and metal. Resins are preferable from the viewpoint of moldability and productivity. 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. Polyacetal (POM) is more preferable from the viewpoint of being inexpensive and having excellent strength. In the above embodiment, the material of the main body member is polyacetal (POM).

Examples of the material of the rotation operation unit include resin and metal. Resins are preferable from the viewpoint of moldability and productivity. 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 embodiment, the material of the rotation operation unit is polyacetal (POM).

Examples of the material of the locking member include resin and metal. Resins are preferable from the viewpoint of moldability and productivity. 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. Polyacetal (POM) is more preferable from the viewpoint of being inexpensive and having excellent strength. In the above embodiment, the material of the locking member is polyacetal (POM).

Examples of the material of the lower member include resin and metal. Resins are preferable from the viewpoint of moldability and productivity. 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 embodiment, the material of the lower member is ABS.

The following appendices are disclosed with respect to the above-described embodiments.
[Appendix 1]
The main body member, which is integrated as a whole and into which the water discharge pipe of the faucet is inserted,
The hose connection where the hose is connected and
A packing that watertightly connects the water discharge pipe inserted into the main body member and the hose connection portion, and
A pressing member that is rotatably attached to the main body member and applies a pressing force containing a water discharge direction component to the water discharge pipe.
A rotation operation unit capable of rotating the pressing member in the loosening direction and the tightening direction, and
With the first engaging portion fixed or engaged with the main body member,
A second engaging portion that engages with the first engaging portion and rotates together with the rotating operating portion and the pressing member.
Is equipped with
The second engaging portion is located between the first engaging portion and the pressing member.
The pressing member has a pressing contact surface that abuts on the water discharge pipe, and the pressing contact surface is formed so that the distance from the water discharge pipe fluctuates due to the rotation of the pressing member. ,
A hose connector in which the reaction force of the pressing force is transmitted to the second engaging portion to press the second engaging portion against the first engaging portion.
[Appendix 2]
The hose connector according to Appendix 1, further provided with an urging member that increases the contact pressure between the first engaging portion and the second engaging portion.
[Appendix 3]
The second engaging portion is configured to be movable between a first position where it engages with the first engaging portion and a second position where the engagement with the first engaging portion is released. ,
The hose connector according to Appendix 2, wherein the urging member urges the second engaging portion toward the first position side.
[Appendix 4]
A locking member is arranged between the first engaging portion and the pressing member.
The hose connector according to any one of Appendix 1 to 3, wherein the locking member has the second engaging portion.
[Appendix 5]
The first engaging portion is one or more convex portions formed on the main body member.
The hose connector according to Appendix 4, wherein the second engaging portion is a plurality of convex portions formed on the locking member and arranged in an annular shape.
[Appendix 6]
The hose connector according to any one of Appendix 1 to 5, wherein the pressing contact surface is a slope and / or a staircase surface formed along a spiral.
[Appendix 7]
The hose connector according to Appendix 6, wherein the lead angle of the pressing contact surface is 10 ° or more.
[Appendix 8]
The hose connector according to Appendix 7, wherein the rotation operating portion has a rotatable angle of 300 ° or less.

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.

10 ・ ・ ・ Hose connector 100 ・ ・ ・ Main body member 106 ・ ・ ・ Upper wall 108 ・ ・ ・ Receiving opening 134 ・ ・ ・ Lower contact part 122 ・ ・ ・ Lower surface of upper wall 200 ・ ・ ・ Pressing member 300 ・・ ・ Rotation operation part 304 ・ ・ ・ Lever part 400 ・ ・ ・ Locking member 500 ・ ・ ・ Basis member 510 ・ ・ ・ Packing 520 ・ ・ ・ Lower member 530 ・ ・ ・ Water discharge pipe insertion part E1 ・ ・ ・1st engaging part E2 ... 2nd engaging part M1, M2 ... Pressing contact surface f1 ... Faucet f2 ... Faucet body f3 ... Water discharge pipe f5 ... Bent part

FIG. 9 is a perspective view of the hose connector 10 in the fixed state and the released state. Figure 10 is a side view viewed hose fitting 10 in the fixed state and the released state from the faucet side. FIG. 11 is a cross-sectional view of the hose connector 10 in the fixed state and the released state. The fixed state of FIG. 11 is a cross-sectional view taken along the line AA of FIG. 10, and the released state of FIG. 11 is a cross-sectional view taken along the line BB of FIG.

When the water is discharged from the faucet f1, faucet f 1 by the water pressure is subjected to the water discharge direction of the force. Due to this force, the pressing force of the pressing contact surface M1 increases. This pressing force contains an axially downward component. When the pressing force is increased, the second engaging portion E2 is strongly pressed against the first engaging portion E1. The reaction force of this pressing force includes an axially upward component. The water pressure pushes the locking member 400 upward, and the contact pressure between the first engaging portion E1 and the second engaging portion E2 increases. As a result, the engaging force between the engaging portions E1 and E2 increases, and the rotation operating portion 300 becomes difficult to rotate in the loosening direction R1. The hose connector 10 is hard to come off due to water pressure. The hose connector 10 is excellent in water pressure resistance.

10 ・ ・ ・ Hose connector 100 ・ ・ ・ Main body member 106 ・ ・ ・ Upper wall 108 ・ ・ ・ Receiving opening 13 2・ ・ ・ Lower contact part 122 ・ ・ ・ Lower surface of upper wall 200 ・ ・ ・ Pressing member 300・ ・ ・ Rotation operation part 304 ・ ・ ・ Lever part 400 ・ ・ ・ Locking member 500 ・ ・ ・ Basis member 510 ・ ・ ・ Packing 520 ・ ・ ・ Lower member 530 ・ ・ ・ Water discharge pipe insertion part E1 ・ ・・ First engaging part E2 ・ ・ ・ Second engaging part M1, M2 ・ ・ ・ Pressing contact surface f1 ・ ・ ・ Faucet f2 ・ ・ ・ Faucet body f3 ・ ・ ・ Water discharge pipe f5 ・ ・ ・ Bent part

Claims (11)

The main body member, which is integrated as a whole and into which the water discharge pipe of the faucet is inserted,
The hose connection where the hose is connected and
A packing that watertightly connects the water discharge pipe inserted into the main body member and the hose connection portion, and
A pressing member that is rotatably attached to the main body member and applies a pressing force containing a water discharge direction component to the water discharge pipe.
A rotation operation unit capable of rotating the pressing member in the loosening direction and the tightening direction, and
With the first engaging portion fixed or engaged with the main body member,
A second engaging portion that engages with the first engaging portion and rotates together with the rotating operating portion and the pressing member.
Is equipped with
The second engaging portion is located between the first engaging portion and the pressing member.
The pressing member has a pressing contact surface that abuts on the water discharge pipe, and the pressing contact surface is formed so that the distance from the water discharge pipe fluctuates due to the rotation of the pressing member. ,
A hose connector in which the reaction force of the pressing force is transmitted to the second engaging portion to press the second engaging portion against the first engaging portion. The hose connector according to claim 1, further comprising an urging member for increasing the contact pressure between the first engaging portion and the second engaging portion. A locking member is arranged between the first engaging portion and the pressing member.
The hose connector according to claim 1 or 2, wherein the locking member has the second engaging portion. The hose connector according to any one of claims 1 to 3, wherein the first engaging portion is formed on the main body member. When the direction of the rotation axis of the pressing member is the axial direction,
The reaction force of the pressing force contains an axially upward component.
The hose connector according to any one of claims 1 to 4, wherein the contact pressure between the first engaging portion and the second engaging portion is increased by this component. The hose connector according to claim 5, wherein the direction of the rotation axis of the second engaging portion coincides with the axial direction. The second engaging portion is configured to be movable between a first position where it engages with the first engaging portion and a second position where the engagement with the first engaging portion is released. The hose connector according to any one of claims 1 to 6. The first engaging portion is composed of a convex portion.
The hose connector according to any one of claims 1 to 7, wherein the convex portion projects toward the pressing member. The hose connector according to any one of claims 1 to 8, wherein the pressing contact surface is a slope and / or a staircase surface formed along a spiral. The hose connector according to claim 9, wherein the lead angle of the pressing contact surface is 10 ° or more. The hose connector according to claim 10, wherein the rotation operating portion has a rotatable angle of 300 ° or less.

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