JP7555052B2 - Water discharge head support mechanism and faucet - Google Patents

Description

This disclosure relates to a water spout head support mechanism and a faucet, and more specifically to a water spout head support mechanism and a faucet that supports a water spout head so that it can be pulled out.

Patent document 1 describes a shower head support mechanism that includes a shower head (i.e., a water discharge head) connected to a water faucet via a hose and a shower receiver that supports the shower head so that it can be pulled out.

The inner circumferential surface of the base of the shower head and the outer circumferential surface of the shower receiver are provided with serrations that mesh with each other to prevent the shower head from rattling.

JP 2008-115686 A

However, in the shower head support mechanism described in Patent Document 1, the interlocking serrations may be formed smaller than the design dimensions due to manufacturing errors, etc. In this case, the gap between the serrations may become larger, causing the shower head to rattle when switching between water discharge and water stop, or the shower head may tilt relative to the faucet body, creating a large gap between the shower head and the faucet body.

In light of the above circumstances, the purpose of this disclosure is to propose a water spout head support mechanism and a faucet that can easily suppress rattling of the water spout head.

The water-spouting head support mechanism of one aspect of the present disclosure comprises a water-spouting head connected to a retractable hose of a faucet, and a cylindrical head support member attached to the faucet with the hose inserted therethrough to support the water-spouting head. The head support member has a head support portion provided with multiple protrusions, and the water-spouting head has an attachment portion provided with multiple recesses into which the multiple protrusions fit. The multiple protrusions and the multiple recesses include a first protrusion and a first recess, and a second protrusion and a second recess that fit together with a narrower gap than the other protrusions and recesses. The first protrusion is located at a first end of the head support portion, and the second protrusion is located at a second end opposite the first end of the head support portion.

A faucet according to one embodiment of the present disclosure includes a faucet body having a retractable hose and the water discharge head support mechanism. The head support member is attached to the faucet body, and the mounting portion of the water discharge head is removably attached to the head support portion.

The water spout head support mechanism and faucet of one aspect of the present disclosure makes it easy to suppress rattling of the water spout head.

FIG. 1 is a partially exploded perspective view showing a faucet equipped with a water spout head support mechanism according to a first embodiment of the present disclosure. FIG. 2 is a side view showing the above faucet. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, showing the relationship between the attachment portion of the water-spouting head provided in the water-spouting head support mechanism and the head support portion of the head support member. FIG. 4 is an enlarged cross-sectional view of part B in FIG. FIG. 5 is an enlarged cross-sectional view of part C in FIG. FIG. 6 is an enlarged cross-sectional view of a portion D in FIG. FIG. 7 is a cross-sectional view taken along a vertical plane including the central axis of the head support member, showing the relationship between the mounting portion of the water-spouting head and the head support portion of the head support member. FIG. 8 is an exploded perspective view showing the head support member. Figure 9 is a cross-sectional view taken along a vertical plane including the central axis of the head support member, showing the relationship between the mounting portion of the water-spouting head provided in the water-spouting head support mechanism of embodiment 2 of the present disclosure and the head support portion of the head support member. 10A is an enlarged cross-sectional view of a portion E in FIG. 9, and FIG. 10B is an enlarged cross-sectional view of a portion F in FIG.

(Embodiment 1)
1. Overview FIG. 1 shows a water-spouting head support mechanism 1 (hereinafter referred to as "support mechanism 1") of the first embodiment. The support mechanism 1 includes a water-spouting head 4 connected to a retractable hose 3 of a faucet 2, and a cylindrical head support member 5 attached to the faucet 2 with the hose 3 inserted therethrough, which supports the water-spouting head 4. The head support member 5 has a head support part 50 provided with a plurality of protrusions 6. The water-spouting head 4 has an attachment part 42 provided with a plurality of recesses 7 into which the plurality of protrusions 6 fit. The plurality of protrusions 6 and the plurality of recesses 7 include a first protrusion 6b and a first recess 7b, and a second protrusion 6c and a second recess 7c, which fit together via a narrower gap than the other protrusions 6a and recesses 7a. The first protrusion 6b is located at a first end of the head support part 50, and the second protrusion 6c is located at a second end of the head support part 50 opposite the first end.

The faucet 2 of the first embodiment also includes a faucet body 20 having a retractable hose 3, and the support mechanism 1 described above. A head support member 5 is attached to the faucet body 20, and the attachment portion 42 of the water spout head 4 is detachably attached to the head support portion 50.

In the support mechanism 1 and faucet 2 of embodiment 1 having the above configuration, the convex portions 6b, 6c and the concave portions 7b, 7c, which fit together through a narrower gap than the other convex portions 6a and concave portions 7a, can suppress rattling of the water-spouting head 4 relative to the head support member 5. Moreover, because the convex portions 6b, 6c are located at both ends of the head support part 50, the sum of the gap between the first convex portion 6b and the first concave portion 7b and the gap between the second convex portion 6c and the second concave portion 7c can be minimized, making it particularly easy to suppress rattling in the direction in which the convex portions 6b, 6c are aligned.

2. Details Next, the support mechanism 1 and the faucet 2 of the present embodiment shown in Figures 1 and 2 will be described in more detail.

The faucet 2 is, for example, a hot and cold water mixing faucet installed in the sink of a system kitchen. The faucet 2 has a faucet body 20 in which a hose 3 is housed so that it can be pulled out, and a lever 21 attached to the faucet body 20. Note that the lever 21 may be provided separately from the faucet body 20 and positioned away from the faucet body 20.

The faucet body 20 has a cylindrical main body portion 200 that extends vertically, and a cylindrical holding portion 201 that extends diagonally upward from the vertical center of the main body portion 200. A hose 3 is housed inside the main body portion 200 and the holding portion 201, and the hose 3 can be pulled out from the tip portion (upper end portion) of the holding portion 201. A head support member 5 is attached to the tip portion (upper end portion) of the holding portion 201. A locking hole 202 used to attach the head support member 5 is provided on the underside of the holding portion 201.

In this embodiment, the water discharge head 4 is a shower head that can switch between straight water discharge and shower water discharge. The water discharge head 4 has a cylindrical housing 40, a water discharge section 41 provided on the underside of one longitudinal end (upper end) of the housing 40, and an attachment section 42 provided on the other longitudinal end (lower end) of the housing 40. The water discharge section 41 has a shower plate with a straight water discharge port provided in the center and multiple shower water discharge ports provided around the straight water discharge port.

In this embodiment, the attachment portion 42 is a separate member from the housing 40 and is attached to the inside of the other longitudinal end (lower end) of the housing 40. The attachment portion 42 is a cylindrical member into which the tip of the hose 3 and the head support portion 50 of the head support member 5 can be inserted.

The mounting portion 42 has an inner circumferential surface 420 on which multiple recesses 7 are provided. In this embodiment, the inner circumferential surface 420 is frustum-shaped and is inclined slightly (e.g., about 0.5°) with respect to the central axis CL1 of the mounting portion 42. The inner circumferential surface 420 is inclined so that the distance from the central axis CL1 of the mounting portion 42 increases toward the inlet side (the side closer to the holding portion 201 of the faucet body 20) (see FIG. 7).

As shown in FIG. 3, the inner peripheral surface 420 has multiple recesses 7 along its entire circumferential length. The multiple recesses 7 are parallel to each other and are spaced at equal intervals.

In this embodiment, the multiple recesses 7 are of the same size and shape. As shown in FIG. 4, each of the multiple recesses 7 has a bottom surface 70 and a pair of inclined surfaces 71 that are continuous with both ends of the bottom surface 70 in the circumferential direction. The pair of inclined surfaces 71 are inclined with respect to the bottom surface 70 such that the distance between the pair of inclined surfaces 71 increases the farther the portion is from the bottom surface 70. The inner peripheral surface 420 is composed of a plurality of bottom surfaces 70 and a plurality of inclined surfaces 71.

Two recesses 7 adjacent in the circumferential direction have the inclined surface 71 of one recess 7 and the inclined surface 71 of the other recess 7 adjacent to it, which are continuous at their ends. The two continuous inclined surfaces 71 of two recesses 7 adjacent in the circumferential direction form a single protrusion 72 whose cross section perpendicular to the central axis CL1 of the mounting part 42 is triangular. The mounting part 42 has multiple protrusions 72. As shown in FIG. 1, the end face of each of the multiple protrusions 72 on the inlet side (the side closer to the holding part 201 of the faucet body 20) forms a guide surface that is inclined with respect to the central axis CL1 of the mounting part 42. The guide surface is inclined so that it moves away from the central axis CL1 of the mounting part 42 as it approaches the inlet of the mounting part 42.

The bottom surfaces 70 of the multiple recesses 7 are inclined slightly (e.g., about 0.5°) relative to the central axis CL1 of the mounting portion 42 (see FIG. 7). Similarly, each of the ridge lines 720 of the multiple protrusions 72 is also inclined slightly (e.g., about 0.5°) relative to the central axis CL1 of the mounting portion 42.

In this embodiment, the mounting portion 42 is a resin molded product. The mounting portion 42 is molded from resin using a mold having multiple protrusions that form the multiple recesses 7. The shapes of the multiple protrusions of the mold are the same.

The head support member 5 shown in FIG. 1 has a head support part 50 that supports the water spout head 4, and a fixing part 51 that is inserted and fixed inside the holding part 201 of the faucet body 20. The head support part 50 and the fixing part 51 are positioned side by side in a direction along the central axis CL2 of the head support member 5 (see FIG. 7).

The head support part 50 has an outer peripheral surface 500 on which multiple protrusions 6 are provided. In this embodiment, the outer peripheral surface 500 is frustum-shaped and has the same inclination as the inner peripheral surface 420 of the mounting part 42. The outer peripheral surface 500 is slightly inclined (for example, about 0.5°) with respect to the central axis CL2 of the head support member 5. The outer peripheral surface 500 is inclined so that the distance from the central axis CL2 of the head support member increases toward the base end side (the side closer to the fixed part 51). The outer peripheral surface 500 and the inner peripheral surface 420 are parallel to each other.

As shown in FIG. 3, the outer peripheral surface 500 has multiple protrusions 6 along its entire circumferential length. The arrangement of the multiple protrusions 6 on the outer peripheral surface 500 corresponds to the arrangement of the multiple recesses 7 on the inner peripheral surface 420. The multiple protrusions 6 are parallel to each other and are arranged at equal intervals.

The multiple-strand convex portion 6 includes a first convex portion 6b located at a first end of the head support portion 50, and a second convex portion 6c located at a second end opposite the first end of the head support portion 50. In this embodiment, the multiple-strand convex portion 6 further includes a third convex portion 6d located at an intermediate portion between the first end and the second end in the circumferential direction of the head support portion 50. The multiple-strand convex portion 6 further includes multiple other convex portions 6a.

As shown in Figures 4, 5, and 6, the protrusions 6b, 6c, and 6d are all larger than the other protrusion 6a. In this embodiment, the protrusions 6b, 6c, and 6d are the same size. Each of the protrusions 6a, 6b, 6c, and 6d has a tip surface 60 and a pair of inclined surfaces 61 that are continuous with both ends of the tip surface 60 in the circumferential direction. The pair of inclined surfaces 61 are inclined with respect to the tip surface 60 so that the distance between the pair of inclined surfaces 61 becomes wider the further away from the tip surface 60.

The ends of the inclined surface 61 of one of the two circumferentially adjacent protrusions 6 are continuous with the inclined surface 61 of the other adjacent protrusion 6. The two continuous inclined surfaces 61 of the two circumferentially adjacent protrusions 6 form a single groove 62 whose cross section is triangular and perpendicular to the central axis CL2 of the head support member 5.

As shown in Figures 1 and 7, the end face of each of the multiple protrusions 6 on the tip side (the side farther from the fixed part 51) forms a guide surface that is inclined with respect to the central axis CL2 of the head support member 5. The guide surface is inclined so that the closer it is to the tip of the head support part 50, the closer it is to the central axis CL2 of the head support member 5.

Each of the tip surfaces 60 of the multiple protrusions 6 is slightly inclined (e.g., about 0.5°) with respect to the central axis CL2 of the head support member 5 (see FIG. 7). Similarly, each of the valley lines 620 of the multiple grooves 62 is also slightly inclined (e.g., about 0.5°) with respect to the central axis CL2 of the head support member 5.

In this embodiment, the tip surface 60 of the convex portions 6b, 6c, and 6d is farther from the central axis CL2 of the head support member 5 than the tip surface 60 of the convex portion 6a. In each of the convex portions 6a, 6b, 6c, and 6d, the inclination angle of the pair of inclined surfaces 61 relative to the tip surface 60 is the same as the inclination angle of the pair of inclined surfaces 71 relative to the bottom surface 70 of the recess 7.

As shown in FIG. 1, the fixing part 51 is provided with a flange 510 located at the end on the head support part 50 side, an annular groove 511 in which an O-ring 56 is attached, and a locking part 512 used for positioning with respect to the holding part 201. The head support member 5 is fixed to the faucet body 20 by inserting the fixing part 51 into the inside of the holding part 201 and hooking the locking part 512 into the locking hole 202 of the holding part 201.

In this embodiment, the head support member 5 is a resin molded product. The head support member 5 is resin molded using a mold having multiple recesses that mold the multiple protrusions 6. The shape of the multiple recesses of the mold corresponds to the shape of the multiple protrusions 6a, 6b, 6c, and 6d, and the recesses corresponding to the protrusions 6b, 6c, and 6d are deeper than the recess corresponding to the protrusion 6a.

Figure 3 shows the head support part 50 and the attachment part 42 of the head support member 5 arranged so that the central axes CL1 and CL2 are aligned and the multiple convex parts 6 fit one-to-one into the central parts of the multiple concave parts 7. In this state, the multiple convex parts 6 and the multiple concave parts 7 have the following positional relationship. Hereinafter, among the multiple concave parts 7, the concave parts 7 into which the first convex part 6b, the second convex part 6c, the third convex part 6d, and the other convex parts 6a fit will be referred to as the first concave part 7b, the second concave part 7c, the third concave part 7d, and the concave part 7a, respectively.

The water discharge head 4 can be adjusted to an appropriate angle relative to the head support member 5, and the direction of the straight water or shower water discharged from the water discharge portion 41 can be changed as appropriate depending on the application. Therefore, the recesses 7 constituting the first recess 7b, the second recess 7c, the third recess 7d, and the recess 7a can be changed as appropriate depending on the orientation of the water discharge head 4.

As shown in FIG. 4, a gap S1 is formed between the tip surface 60 of the first convex portion 6b and the bottom surface 70 of the first recess 7b. Gaps S2 and S3 are formed between the pair of inclined surfaces 61 of the first convex portion 6b and the pair of inclined surfaces 71 of the first recess 7b, respectively. In this embodiment, the lengths L1, L2, and L3 of the gaps S1, S2, and S3 are the same as each other.

As shown in FIG. 5, a gap S4 is formed between the tip surface 60 of the second convex portion 6c and the bottom surface 70 of the second recess 7c. Gaps S5 and S6 are formed between the pair of inclined surfaces 61 of the second convex portion 6c and the pair of inclined surfaces 71 of the second recess 7c, respectively. In this embodiment, the lengths L4, L5, and L6 of the gaps S4, S5, and S6 are the same as each other.

As shown in FIG. 6, a gap S7 is formed between the tip surface 60 of the third convex portion 6d and the bottom surface 70 of the third concave portion 7d. Gaps S8 and S9 are formed between the pair of inclined surfaces 61 of the third convex portion 6d and the pair of inclined surfaces 71 of the third concave portion 7d, respectively. In this embodiment, the lengths L7, L8, and L9 of the gaps S7, S8, and S9 are the same as each other.

As shown in Figures 4 to 6, a gap S10 is formed between the tip surface 60 of the protrusion 6a and the bottom surface 70 of the recess 7a facing it. Gaps S11 and S12 are formed between a pair of inclined surfaces 61 of the protrusion 6a and a pair of inclined surfaces 71 of the recess 7a facing it, respectively. In this embodiment, the lengths L10, L11, and L12 of the gaps S10, S11, and S12 are the same as each other.

Gaps S1, S4, and S7 are narrower than gap S10. Furthermore, in this embodiment, gaps S2, S5, and S8 are narrower than gap S11, and gaps S3, S6, and S9 are narrower than gap S12. As a result, the convex portions 6b, 6c, and 6d and the concave portions 7b, 7c, and 7d fit together through gaps narrower than the other convex portions 6a and concave portions 7a. Each of the gaps S1 to S9 is, for example, 0.01 mm or more and 0.11 mm or less. The length of each gap can be found, for example, by individually detecting the dimensions of the mounting portion 42 and the dimensions of the head support member 5 and calculating the dimensional difference from the detection results.

In this embodiment, as shown in FIG. 7, the gaps between the multiple convex portions 6 and the concave portions 7 are constant along the longitudinal direction. In other words, the gaps between the convex portions 6 and the concave portions 7 are the same at the tip end of the head support portion 50 (the end farther from the fixed portion 51) and the base end of the head support portion 50 (the end closer to the fixed portion 51).

In this embodiment, as shown in FIG. 8, the head support member 5 has a first semi-cylindrical portion 5a and a second semi-cylindrical portion 5b that is combined with the first semi-cylindrical portion 5a. In other words, the head support member 5 is formed by combining the two semi-cylindrical portions 5a and 5b.

Each of the first and second semi-cylinder portions 5a and 5b has a semi-cylindrical shape. Each of the first and second semi-cylinder portions 5a and 5b has a head support portion 50 and a fixing portion 51.

In this embodiment, as shown in FIG. 3, of the first and second semi-cylindrical portions 5a and 5b, only the first semi-cylindrical portion 5a is provided with the first convex portion 6b, the second convex portion 6c, and the third convex portion 6d.

The first convex portion 6b is provided at one circumferential end of the outer peripheral surface 500 of the head support portion 50 of the first semi-cylindrical portion 5a, and the second convex portion 6c is provided at the other circumferential end of the outer peripheral surface 500 of the head support portion 50 of the first semi-cylindrical portion 5a. The third convex portion 6d is provided at the circumferential intermediate portion of the outer peripheral surface 500 of the head support portion 50 of the first semi-cylindrical portion 5a. As a result, the first convex portion 6b is provided at the first end of the head support portion 50, the second convex portion 6c is provided at the second end opposite to the first end of the head support portion 50, and the third convex portion 6d is provided at the intermediate portion between the first end and the second end of the head support portion 50.

In addition, on the outer peripheral surface 500 of the head support portion 50 of the first semi-cylindrical portion 5a, multiple convex portions 6a are provided between the first convex portion 6b and the third convex portion 6d, and multiple convex portions 6a are provided between the third convex portion 6d and the second convex portion 6c. Furthermore, in this embodiment, one half body 6e having a shape similar to that of the convex portion 6a divided in half is provided on both circumferential edges of the outer peripheral surface of the first semi-cylindrical portion 5a. Each of the first convex portion 6b and the second convex portion 6c is located next to the half body 6e on both end edges.

On the outer peripheral surface 500 of the head support portion 50 of the second semi-cylindrical portion 5b, only multiple protrusions 6a and two half bodies 6e are provided, and none of the protrusions 6b, 6c, or 6d are provided. One half body 6e is provided on each of both circumferential edges of the outer peripheral surface 500 of the head support portion 50 of the second semi-cylindrical portion 5b.

By combining the first and second semi-cylindrical portions 5a and 5b, the half-split bodies 6e located at both circumferential edges of the first semi-cylindrical portion 5a and the half-split bodies 6e located at both circumferential edges of the second semi-cylindrical portion 5b are combined one by one to form the protrusions 6a.

In this embodiment, the first semi-cylindrical portion 5a constitutes the upper portion (more specifically, the upper half) of the head support member 5, and the second semi-cylindrical portion 5b constitutes the lower portion (more specifically, the lower half) of the head support member 5. As shown in FIG. 8, each of the circumferential end faces (a pair of lower faces) of the first semi-cylindrical portion 5a is provided with a plurality of fixing projections 52 protruding downward and an S-shaped insertion piece 53 protruding downward.

Each of the circumferential end faces (a pair of upper faces) of the second semi-cylindrical portion 5b is provided with a plurality of fixing holes 54 into which the plurality of protrusions 52 fit, and an insertion groove 55 into which the insertion piece 53 fits. A locking portion 512 that protrudes downward is provided at the bottom of the fixing portion 51 of the second semi-cylindrical portion 5b.

The head support member 5 shown in FIG. 1 is formed by butting the circumferential end faces of the semi-cylindrical portions 5a and 5b together, inserting the multiple protrusions 52 into the multiple fixing holes 54, and inserting the multiple insertion pieces 53 into the multiple insertion grooves 55, and then attaching an O-ring 56 to the annular groove 511. The semi-cylindrical portions 5a and 5b are assembled with the portion of the hose 3 pulled out from the holding portion 201 stored inside the semi-cylindrical portions 5a and 5b.

The O-ring 56 functions to seal the gap between the head support member 5 and the inner surface of the holding portion 201, and also functions to combine the semi-cylindrical portions 5a and 5b together.

3. Method for Attaching the Support Mechanism Next, a method for attaching the support mechanism 1 (the water-spouting head 4 and the head support member 5) to the faucet body 20 will be described.

First, the installer pulls out a portion of the hose 3 from the holding portion 201 of the faucet body 20, and sandwiches the pulled-out portion of the hose 3 between the first and second semi-cylindrical portions 5a and 5b. At this time, the multiple protrusions 52 of the first semi-cylindrical portion 5a are inserted into the multiple fixing holes 54 of the second semi-cylindrical portion 5b, and the multiple insertion pieces 53 of the first semi-cylindrical portion 5a are inserted into the multiple insertion grooves 55 of the second semi-cylindrical portion 5b. Then, an O-ring 56 is attached to the annular groove 511 of the fixing portion 51 of the first and second semi-cylindrical portions 5a and 5b, and the first and second semi-cylindrical portions 5a and 5b are assembled together to form the head support member 5.

Then, the fixing portion 51 of the head support member 5 is inserted into the holding portion 201 of the faucet body 20, and the locking portion 512 of the head support member 5 is inserted into and hooked onto the locking hole 202 of the holding portion 201. This fixes the head support member 5 to the faucet body 20. The head support member 5 is attached to the tip of the holding portion 201 so that the longitudinal direction of the multiple protrusions 6 is aligned with the protruding direction of the holding portion 201.

Next, insert the tip of the hose 3 into the inside of the mounting part 42 of the water discharge head 4, and secure the tip of the hose 3 to the mounting part 42 using a fastener (not shown).

Next, the water spouting head 4 is attached to the head support member 5 so that the multiple recesses 7 on the inner circumferential surface 420 of the mounting portion 42 of the water spouting head 4 fit into the multiple protrusions 6 on the outer circumferential surface 500 of the head support portion 50 of the head support member 5. This attaches the water spouting head 4 to the faucet body 20, and the faucet 2 is formed.

When the faucet 2 is formed, the outer peripheral surface of the housing 40 of the water spouting head 4 is aligned approximately flush with the outer peripheral surface of the holding portion 201 of the faucet body 20. The water spouting head 4 is tilted at approximately the same angle as the holding portion 201. Strictly speaking, the central axis CL1 of the mounting portion 42 of the water spouting head 4 and the central axis CL2 of the head support member 5 do not coincide, and the weight of the water spouting head 4 causes the water spouting head 4 to tilt slightly relative to the head support member 5 and the holding portion 201. At this time, the third convex portion 6d of the head support member 5 and the third concave portion 7d of the mounting portion 42 of the water spouting head 4 are in contact with each other at the tip side of the head support portion 50 and are separated at the base end side (forming a gap). Also, at this time, the convex portion 6a located at the bottom of the head support member 5 and the corresponding concave portion 7d of the mounting portion 42 of the water spouting head 4 are in contact with each other at the base end side of the head support portion 50 and are separated at the tip side (forming a gap). As a result, the water discharge head 4 is supported by the head support member 5.

The water discharge head 4 can be connected to the head support member 5 at any angle so that the water discharge portion 41 faces the desired water discharge direction.

4. Effects and Effects In the support mechanism 1 and faucet 2 of the present embodiment described above, the head support part 50 has the convex parts 6b and 6c at both horizontal ends, which fit through a narrower gap than the other convex part 6a. Therefore, in the support mechanism 1 and faucet 2 of the present embodiment, the horizontal wobbling of the water spouting head 4 relative to the head support member 5 can be minimized, and the wobbling of the water spouting head 4 can be suppressed.

In addition, in the support mechanism 1 and faucet 2 of this embodiment, the head support part 50 has a third convex part 6d at the upper end that fits through a narrower gap than the other convex parts 6a, so that the vertical rattle of the water discharge head 4 relative to the head support member 5 can be minimized.

In addition, in the support mechanism 1 and faucet 2 of this embodiment, each of the convex portions 6b, 6c, and 6d fits into a pair of inclined surfaces 71 of the concave portions 7b, 7c, and 7d via a narrow gap, not only at the tip surface 60 but also at the pair of inclined surfaces 61. Therefore, in the support mechanism 1 and faucet 2 of this embodiment, rattling of the water discharge head 4 in the rotational direction relative to the head support member 5 can be minimized.

In addition, in the support mechanism 1 and faucet 2 of this embodiment, the convex portions 6b, 6c are provided only on the first half-cylinder portion 5a of the half-cylinder portions 5a, 5b. Therefore, in the support mechanism 1 and faucet 2 of this embodiment, the gaps that occur between the convex portions 6b, 6c and the concave portions 7b, 7c are not affected by manufacturing errors in the second half-cylinder portion 5b, making it easier to prevent rattling.

In addition, in the support mechanism 1 and faucet 2 of this embodiment, among the multiple convex portions 6 and concave portions 7, only some of the convex portions 6 (convex portions 6b, 6c, 6d) are different in size from the other convex portions 6a, and the multiple concave portions 7 are the same size and shape, making it easy to manufacture the mounting portion 42. In addition, in the support mechanism 1 and faucet 2 of this embodiment, the head support portion 50 is also easy to manufacture because only a few locations require strict dimensional control.

In addition, in the support mechanism 1 and faucet 2 of this embodiment, even if the multiple convex portions 6 and concave portions 7 are formed smaller than the set dimensions due to manufacturing errors, the dimensions of the gaps in some areas (between the convex portions 6b, 6c and the concave portions 7b, 7c) can be kept below a certain level, making it easier to suppress rattling.

In addition, in the support mechanism 1 and faucet 2 of this embodiment, the inner circumferential surface 420 of the mounting portion 42 is wide on the opening side, and the outer circumferential surface 500 of the head support portion 50 is narrow on the tip side, making it easy to insert the head support portion 50 inside the mounting portion 42 and easy to pull out the mounting portion 42 from the head support portion 50.

In addition, in the support mechanism 1 and faucet 2 of this embodiment, the inlet side (head support part 50 side) surface of the multiple convex parts 72 of the mounting part 42 and the tip side (mounting part 42 side) surface of the multiple convex parts 6 of the head support part 50 each form an inclined guide surface. Therefore, in the support mechanism 1 and faucet 2 of this embodiment, it is easy to insert the head support part 50 inside the mounting part 42.

In addition, in the support mechanism 1 and faucet 2 of this embodiment, the gaps between the multiple convex portions 6 and the concave portions 7 are constant along the longitudinal direction, which prevents each convex portion 6 from being pressed into each concave portion 7, thereby suppressing wear on each convex portion 6 and each concave portion 7. Therefore, in the support mechanism 1 and faucet 2 of this embodiment, it is possible to suppress the gaps from expanding due to repeated attachment and detachment, which makes it easier for rattling to occur.

In addition, the faucet 2 of this embodiment can prevent the gap between each convex portion 6 and each concave portion 7 from widening, thereby preventing the water discharge head 4 from tilting relative to the holding portion 201 of the faucet body 20 and creating a large gap between the water discharge head 4 and the holding portion 201.

5. Modifications Next, a description will be given of modifications of the support mechanism 1 and the faucet 2 of the above-described embodiment. The modifications described below can be appropriately combined.

The multiple convex portions 6 and the multiple concave portions 7 need only include convex portions 6b, 6c and concave portions 7b, 7c that fit together with a narrower gap than the other convex portions 6a and concave portions 7b, and are not limited to the structure shown in FIG. 3, etc.

For example, the multiple protrusions 6 may be the same size, and some of the multiple recesses 7, 7b and 7c, may be formed shallower than the other recesses 7a, so that the distance between the protrusions 6b and 6c and the recesses 7b and 7c is narrower than the distance between the other protrusions 6a and the recesses 7a. Also, the recesses 7b and 7c may be formed shallower than the other recesses 7a, and the protrusions 6b and 6c may be formed larger than the other protrusions 6a.

In addition, the protrusions 6b and 6c are not limited to being located at both horizontal ends of the head support part 50, but may be located at both vertical ends of the head support part 50, or may be located at both ends of the head support part 50 in a direction other than the horizontal and vertical directions.

In addition, the head support member 5 is not limited to being a combination of the semi-cylindrical portions 5a and 5b, but may be composed of a single member.

The head support member 5 is not limited to being divided into two parts, top and bottom, but may be divided into two parts, left and right, or in other directions. The head support member 5 may also be divided into three or more parts.

Furthermore, the multiple convex portions 6 and the multiple concave portions 7 may include only the convex portions 6b, 6c and the concave portions 7b, 7c out of the convex portions 6b, 6c, 6d and the concave portions 7b, 7c, 7d, and may not include the third convex portion 6d and the third concave portion 7d.

In addition, the gap between the multiple convex portions 6 and the multiple concave portions 7 does not have to be constant along the longitudinal direction, and the gap at the base side (fixed portion 51 side) of the head support portion 50 may be narrower than the gap at the tip side (opposite side to the fixed portion 51) of the head support portion 50.

The gap formed between the convex portion 6b and the concave portion 7b should be narrower than the gaps formed between the other convex portions 6a and the concave portions 7a, at least as long as the gap between the tip surface 60 and the bottom surface 70 is narrower, and the gap between the pair of inclined surfaces 61 and the pair of inclined surfaces 71 may be the same. The same is true for the gap formed between the convex portion 6c and the concave portion 7c, and the gap formed between the convex portion 6d and the concave portion 7d.

Furthermore, the head support part 50 has multiple protrusions 6, and the mounting part 42 has multiple recesses 7, and is not limited to the structure shown in FIG. 1 etc. For example, the mounting part 42 may be provided in a convex shape so as to protrude from the housing 40, and the head support part 50 may be provided in a concave shape so that the mounting part 42 is inserted inside the head support part 50. In this case, the head support part 50 has multiple protrusions 6 on its inner peripheral surface, and the mounting part 42 has multiple recesses 7 on its outer peripheral surface.

The faucet body 20 may be an existing faucet body 20, and the support mechanism 1 may be used as a replacement part for the water discharge head and support mechanism that were attached to the existing faucet body 20.

(Embodiment 2)
Next, the support mechanism 1 and the faucet 2 of the second embodiment shown in Figures 9, 10A and 10B will be described in detail with reference to the drawings. In the following, among the support mechanism 1 and the faucet 2 of the second embodiment, the components common to the first embodiment will be denoted by the same reference numerals in the drawings and detailed description will be omitted, and the components different from the first embodiment will be described in detail.

In the support mechanism 1 and the faucet 2 of the second embodiment, only the structure of the head support portion 50 is different from that of the support mechanism 1 and the faucet 2 of the first embodiment. In this embodiment, the first semi-cylindrical portion 5a constitutes the upper portion (specifically, the upper half portion) of the head support portion 50, and the second semi-cylindrical portion 5b constitutes the lower portion (specifically, the lower half portion) of the head support portion 50. The other convex portions 6a are provided at both circumferential ends (in other words, the first end and the second end portion) of the head support portion 50 of the second semi-cylindrical portion 5b, and include a restricting convex portion 6f that restricts the upward movement of the mounting portion 42. The gap between the head support portion 50 of the second semi-cylindrical portion 5b and the mounting portion 42 is minimized between the restricting convex portion 6f and the recessed portion 7 into which the restricting convex portion 6f fits. The restricting convex portion 6f includes a restricting surface 63 that is parallel to the horizontal direction and faces downward.

More specifically, in this embodiment, four restricting protrusions 6f are provided in a line in the circumferential direction on both circumferential ends of the outer peripheral surface 500 of the head support portion 50 of the second semi-cylindrical portion 5b. A plurality of protrusions 6g are provided over the entire circumferential length of the remaining portion of the outer peripheral surface 500 of the head support portion 50 of the second semi-cylindrical portion 5b, excluding both circumferential ends. Note that in this embodiment, no half body 6e is provided on either circumferential end edge of the outer peripheral surface 500 of the head support portion 50 of the second semi-cylindrical portion 5b.

Of the four restricting protrusions 6f, the one located at the bottom includes a restricting surface 63 that is parallel to the horizontal direction and faces downward. The lower inclined surface 61 of the lowermost restricting protrusion 6f is the restricting surface 63 that is parallel to the horizontal direction. Here, "parallel to the horizontal direction" does not necessarily mean strictly parallel, but also includes approximately parallel with an inclination within a range of ±2 degrees to the horizontal direction.

All four restricting protrusions 6f are the same size. Each of the multiple protrusions 6g is smaller than the restricting protrusion 6f. Specifically, the tip surface 60 of the protrusion 6g is closer to the central axis CL2 of the head support member 5 than the tip surface 60 of the restricting protrusion 6f. As a result, the gap between the head support portion 50 of the second semi-cylindrical portion 5b and the mounting portion 42 is minimized between the restricting protrusion 6f and the recess 7 into which the restricting protrusion 6f fits.

In this embodiment, each of the four restricting protrusions 6f is the same size as the protrusion 6a of the head support portion 50 of the first half cylinder portion 5a. Between each surface 60, 61 of the restricting protrusion 6f and each surface 70, 71 of the recess 7 facing it, a gap of the same size as the gap between the protrusion 6a and the recess 7a is generated. Therefore, the gap distance between the lower inclined surface 61 (restricting surface 63) of the lowest restricting protrusion 6f and the opposing inclined surface 71 of the recess 7 is slightly wider than the gap distance between the lower inclined surface 61 of the protrusions 6b, 6c and the lower inclined surface 71 of the recesses 7b, 7c facing it.

A protrusion 610 is provided on a portion of each of the pair of inclined surfaces 61 of the first convex portion 6b, protruding in a direction perpendicular to the inclined surface 61. The protrusion 610 is provided on the remaining portion of the inclined surface 61 excluding both ends in the width direction (in other words, the circumferential direction of the outer peripheral surface 500). The protrusion 610 is located over the entire length of the inclined surface 61 in the longitudinal direction (direction parallel to the central axis CL2). The tip surface of the protrusion 610 in the protruding direction is parallel to both ends of the inclined surface 61.

In addition, a protrusion 610 is also provided on each of the pair of inclined surfaces 61 of the second convex portion 6c and each of the pair of inclined surfaces 61 of the third convex portion 6d. As a result, in the support mechanism 1 of this embodiment, the gap between the pair of inclined surfaces 61 of the convex portions 6b, 6c, and 6d and the pair of inclined surfaces 71 of the recesses 7b, 7c, and 7d facing them is further narrowed between the protrusion 610 and the portion facing it.

In the support mechanism 1 of the second embodiment described above, when an upward load is applied to the water discharge head 4, the mounting portion 42 of the water discharge head 4 moves upward, and first, the lower inclined surface 71 of the recesses 7b, 7c of the mounting portion 42 comes into contact with the lower inclined surface 61 of the convex portions 6b, 6c of the first semi-cylindrical portion 5a. As a result, the lower inclined surface 61 of the convex portions 6b, 6c of the first semi-cylindrical portion 5a is pressed upward, and the first and second ends of the first semi-cylindrical portion 5a are slightly deformed in the direction of the central axis CL2 of the first semi-cylindrical portion 5a.

When the mounting portion 42 of the water discharge head 4 moves further upward from this state, the lower inclined surfaces 61 of the regulating protrusions 6f at the first and second ends of the second semi-cylindrical portion 5b come into contact with the lower inclined surfaces 71 of the opposing recesses 7, restricting the upward movement of the mounting portion 42. This allows part of the upward load from the mounting portion 42 to be received by the regulating protrusions 6f at the first and second ends of the second semi-cylindrical portion 5b, preventing this load from being concentrated on the first and second protrusions 6b and 6c of the first semi-cylindrical portion 5a.

Therefore, in the support mechanism 1 of this embodiment, the first and second ends of the first semi-cylindrical portion 5a can be prevented from deforming in the direction of the central axis CL2, thereby preventing the gap between the convex portions 6b, 6c of the first semi-cylindrical portion 5a and the mating concave portions 7b, 7c from widening. Therefore, in the support mechanism 1 of this embodiment, the convex portions 6b, 6c can easily maintain the function of suppressing rattling.

In addition, in the support mechanism 1 of this embodiment, a portion of the upward load from the mounting portion 42 can be received by the regulating surface 63, which is parallel to the horizontal direction, of the regulating protrusion 6f of the second semi-cylindrical portion 5b. Therefore, in the support mechanism 1 of this embodiment, the first end and the second end of the second semi-cylindrical portion 5b can be prevented from deforming in the direction of the central axis CL2, causing the position of the regulating protrusion 6f to change. As a result, in the support mechanism 1 of this embodiment, it is easy to maintain a state in which the regulating protrusion 6f can receive a portion of the upward load from the mounting portion 42.

In addition, in the support mechanism 1 of this embodiment, the gap between the head support portion 50 of the second semi-cylindrical portion 5b and the mounting portion 42 is made larger in the lower portion of the second semi-cylindrical portion 5b (the portion between the restricting protrusions 6f at both ends). Therefore, in the support mechanism 1 of this embodiment, the water-spouting head 4 can be easily attached and detached to and from the head support member 5.

In addition, in the support mechanism 1 of this embodiment, the restricting protrusion 6f fits into the recess 7 through a gap wider than the protrusions 6b, 6c and the recesses 7b, 7c, so strict dimensional control is not required as with the protrusions 6b, 6c, making it easier to manufacture the second semi-cylindrical portion 5b.

The support mechanism 1 and faucet 2 of the above-described embodiment 2 can adopt the same modified examples as those of the support mechanism 1 and faucet 2 of the above-described embodiment 1, as appropriate.

In addition, at least one restricting protrusion 6f may be provided at each of the two circumferential ends of the second semi-cylindrical portion 5b, and only one restricting protrusion 6f at the bottom having the restricting surface 63 may be provided.In addition, only two restricting protrusions 6f may be provided at each of the two circumferential ends of the second semi-cylindrical portion 5b, one restricting protrusion 6f at the bottom having the restricting surface 63 and one restricting protrusion 6f at the top, and in this case, a protrusion 6g may be provided between the two restricting protrusions 6f.

The second half cylinder portion 5b is not limited to the structure shown in FIG. 9, as long as the gap between the head support portion 50 of the second half cylinder portion 5b and the mounting portion 42 is minimized between the restricting protrusion 6f and the recess 7 into which the restricting protrusion 6f fits. For example, the portion of the outer circumferential surface 500 of the second half cylinder portion 5b between the restricting protrusions 6f at both ends may be an arc-shaped surface without providing multiple protrusions 6g.

In addition, the restricting protrusion 6f does not have to be the same size as the protrusion 6a of the first semi-cylindrical portion 5a, and may be smaller than the protrusions 6b, 6c, and 6d and larger than the protrusion 6a.

(summary)
As in the above-described first and second embodiments and their modified examples, the support mechanism (1) of the first aspect has the following configuration.

That is, the support mechanism (1) of the first aspect comprises a water-spouting head (4) connected to a retractable hose (3) of a faucet (2), and a cylindrical head support member (5) that is attached to the faucet (2) with the hose (3) inserted therethrough and supports the water-spouting head (4). The head support member (5) has a head support part (50) provided with multiple convex parts (6). The water-spouting head (4) has an attachment part (42) provided with multiple concave parts (7) into which the multiple convex parts (6) fit. The multiple convex parts (6) and the multiple concave parts (7) include a first convex part (6b) and a first concave part (7b) and a second convex part (6c) and a second concave part (7c) that fit together via a gap narrower than that between the other convex parts (6a) and concave parts (7a). The first convex portion (6b) is located at a first end of the head support portion (50), and the second convex portion (6c) is located at a second end of the head support portion (50) opposite the first end.

In the support mechanism (1) of the first embodiment having the above configuration, the convex portions (6b, 6c) and the concave portions (7b, 7c) that fit together through a narrower gap than the other convex portions (6a) and concave portions (7a) can suppress rattling of the water-spouting head (4) relative to the head support member (5). Moreover, in the support mechanism (1) of the first embodiment, the convex portions (6b, 6c) are located at both ends of the head support portion (50), so the sum of the gap between the first convex portion (6b) and the first concave portion (7b) and the gap between the second convex portion (6c) and the second concave portion (7c) can be minimized. Therefore, in the support mechanism (1) of the first embodiment, rattling in the direction in which the convex portions (6b, 6c) are aligned is particularly easily suppressed.

As in the above-mentioned first and second embodiments and their modified examples, the support mechanism (1) of the second aspect additionally has the following configuration in addition to the configuration of the first aspect.

That is, in the support mechanism (1) of the second embodiment, the first convex portion (6b) and the second convex portion (6c) are each larger than the other convex portion (6a).

In the second embodiment of the support mechanism (1) having the above configuration, the gap between the convex portions (6b, 6c) and the concave portions (7b, 7c) can be narrowed by the simple method of making some of the multiple convex portions (6) larger, making it easy to manufacture the support mechanism (1).

As in the above-mentioned first and second embodiments and their modified examples, the support mechanism (1) of the third aspect additionally has the following configuration in addition to the configuration of the first or second aspect.

That is, in the support mechanism (1) of the third embodiment, the head support member (5) has a first semi-cylinder portion (5a) and a second semi-cylinder portion (5b) that is combined with the first semi-cylinder portion (5a). Of the first semi-cylinder portion (5a) and the second semi-cylinder portion (5b), only the first semi-cylinder portion (5a) is provided with a first convex portion (6b) and a second convex portion (6c).

In the support mechanism (1) of the third aspect having the above configuration, the first convex portion (6b) and the second convex portion (6c), which are larger than the other convex portion (6a), are formed together in one of the semi-cylindrical portions (5a). Therefore, in the support mechanism (1) of the third aspect, the gap between the convex portions (6b, 6c) and the concave portions (7b, 7c) can be prevented from being affected by manufacturing errors in the other second semi-cylindrical portion (5b), making it easy to control the dimensions. Also, in the support mechanism (1) of the third aspect, the head support member (5) is formed of two semi-cylindrical portions (5a, 5b) that fit together, so that the hose (3) can be easily passed inside the head support member (5).

As in the above-mentioned first and second embodiments and their modified examples, the support mechanism (1) of the fourth aspect additionally has the following configuration in addition to the configuration of any one of the first to third aspects.

That is, in the support mechanism (1) of the fourth embodiment, the multiple convex portions (6) and the multiple concave portions (7) include a third convex portion (6d) and a third concave portion (7d) that fit together through a narrower gap than the other convex portions (6a) and concave portions (7a). The third convex portion (6d) is located in the middle between the first end portion and the second end portion of the head support portion (50).

In the support mechanism (1) of the fourth aspect having the above configuration, in addition to the fitting of the convex portions (6b, 6c) and the concave portions (7b, 7c), the third convex portion (6d) and the third concave portion (7d) fit together through a narrow gap. This makes it easier for the support mechanism (1) of the fourth aspect to suppress rattling of the water-spouting head (4) relative to the head support member (5).

As in the above-mentioned second embodiment and its modified example, the support mechanism (1) of the fifth aspect additionally has the following configuration in addition to the configuration of the third aspect.

That is, in the support mechanism (1) of the fifth embodiment, the first semi-cylindrical portion (5a) constitutes the upper portion of the head support portion (50), and the second semi-cylindrical portion (5b) constitutes the lower portion of the head support portion (50). The other convex portions (6a) are provided at the first and second ends of the head support portion (50) of the second semi-cylindrical portion (5b), respectively, and include restricting convex portions (6f) that restrict the upward movement of the mounting portion (42). The gap between the head support portion (50) of the second semi-cylindrical portion (5b) and the mounting portion (42) is minimized between the restricting convex portion (6f) and the recessed portion (7) into which the restricting convex portion (6f) fits.

In the support mechanism (1) of the fifth aspect having the above configuration, when an upward load is applied to the water discharge head (4) and the mounting portion (42) moves upward, the upward movement of the mounting portion (42) can be restricted by the restricting protrusions (6f) at the first end and second end of the second semi-cylindrical portion (5b). Therefore, in the support mechanism (1) of the fifth aspect, a part of the upward load can be received by the restricting protrusions (6f), and this load can be prevented from being concentrated on the first protrusions (6b) and second protrusions (6c) of the first semi-cylindrical portion (5a). As a result, in the support mechanism (1) of the fifth aspect, the first end and second end of the first semi-cylindrical portion (5a) can be prevented from deforming in the direction of its central axis (CL2) to prevent the gap between the protrusions (6b, 6c) of the first semi-cylindrical portion (5a) and the recesses (7b, 7c) that fit therewith from widening. Therefore, in the support mechanism (1) of the fifth aspect, it is easy to maintain the function of suppressing rattling by the convex parts (6b, 6c). In addition, in the support mechanism (1) of the fifth aspect, the gap between the head support part (50) and the attachment part (42) is large in the part of the second half cylinder part (5b) between the restricting convex parts (6f), so that the water-spouting head (4) can be easily attached and detached to and from the head support member (5).

As in the above-mentioned second embodiment and its modified example, the support mechanism (1) of the sixth aspect additionally has the following configuration in addition to the configuration of the fifth aspect.

That is, in the sixth embodiment of the support mechanism (1), the restricting protrusion (6f) includes a restricting surface (63) that is parallel to the horizontal direction and faces downward.

In the support mechanism (1) of the sixth aspect having the above configuration, when an upward load is applied to the water discharge head (4), part of the load can be received by the regulating surface (63) of the regulating protrusion (6f) of the second semi-cylindrical portion (5b) that is parallel to the horizontal direction. Therefore, in the support mechanism (1) of the sixth aspect, it is possible to prevent the first end and the second end of the head support portion (50) of the second semi-cylindrical portion (5b) from deforming in the direction of its central axis (CL2) and causing the position of the regulating protrusion (6f) to change. As a result, in the support mechanism (1) of the sixth aspect, it is easy to maintain a state in which the regulating protrusion (6f) can receive part of the upward load.

As in the above-mentioned first and second embodiments and their modified examples, the support mechanism (1) of the seventh aspect additionally has the following configuration in addition to the configuration of any one of the first to sixth aspects.

That is, in the seventh embodiment of the support mechanism (1), the gap between the multiple convex portions (6) and the multiple concave portions (7) is constant along the longitudinal direction.

The seventh aspect of the support mechanism (1) having the above configuration can prevent the convex portions (6b, 6c) and the concave portions (7b, 7c) from pressing against each other too strongly and wearing down when attaching or detaching the attachment portion (42) of the water-spouting head (4) to the head support portion (50) of the head support member (5). Therefore, the seventh aspect of the support mechanism (1) makes it easier to prevent rattling caused by deterioration over time.

As in the above-mentioned first and second embodiments and their modified examples, the eighth aspect of the faucet (2) comprises a faucet body (20) having a retractable hose (3) and a support mechanism (1) of any one of the first to seventh aspects. A head support member (5) is attached to the faucet body (20), and the attachment portion (42) of the water discharge head (4) is removably attached to the head support portion (50).

The eighth aspect of the faucet (2) having the above configuration can prevent the water discharge head (4) from rattling relative to the faucet body (20), thereby improving the quality of the faucet (2).

As in the above-described embodiment and its modified example, the ninth aspect of the faucet (2) additionally has the following configuration in addition to the configuration of the eighth aspect.

That is, in the ninth embodiment of the faucet (2), the faucet body (20) has a retaining portion (201) that protrudes diagonally upward. The head support member (5) is attached to the tip of the retaining portion (201) so that the longitudinal direction of the multiple convex portions (6) is aligned with the protruding direction of the retaining portion (201).

In the ninth embodiment of the faucet (2) having the above configuration, the attachment portion (42) of the water-spouting head (4) can be supported by the head support portion (50) of the head support member (5) in a position in which the longitudinal direction of the multiple convex portions (6) and multiple concave portions (7) is tilted diagonally upward. Therefore, in the ninth embodiment of the faucet (2), the attachment portion (42) of the water-spouting head (4) can be prevented from falling off the head support portion (50).

The present disclosure has been described above based on the embodiments shown in the attached drawings, but the present disclosure is not limited to the above embodiments, and appropriate design changes are possible within the intended scope of the present disclosure.

Reference Signs List 1 Water-spouting head support mechanism 2 Faucet 20 Faucet body 201 Holding portion 3 Hose 4 Water-spouting head 42 Mounting portion 5 Head support member 5a First semi-cylindrical portion 5b Second semi-cylindrical portion 50 Head support portion 6 Convex portion 6a Convex portion 6b First convex portion 6c Second convex portion 6d Third convex portion 6f Restricting convex portion 63 Restricting surface 7 Recess 7a Recess 7b First recess 7c Second recess 7d Third recess

Claims (9)

A water spouting head connected to a retractable hose of the faucet;
A cylindrical head support member that is attached to the faucet with the hose inserted therethrough and supports the water spout head;
Equipped with
the head support member has a head support portion provided with a plurality of protrusions,
The water spouting head has an attachment portion provided with a plurality of recesses into which the plurality of protrusions fit,
the plurality of protruding portions and the plurality of recessed portions include a first protruding portion and a first recessed portion and a second protruding portion and a second recessed portion that are fitted together via a gap narrower than that between the other protruding portions and the recessed portions,
the first protrusion is located at a first end of the head support portion,
the second protrusion is located at a second end portion opposite to the first end portion of the head support portion,
A water-spouting head support mechanism. Each of the first convex portion and the second convex portion is larger than the other convex portion.
The water-spouting head support mechanism according to claim 1 . the head support member has a first semi-cylindrical portion and a second semi-cylindrical portion that is combined with the first semi-cylindrical portion,
of the first semi-cylindrical portion and the second semi-cylindrical portion, the first convex portion and the second convex portion are provided only on the first semi-cylindrical portion,
3. The water-spouting head support mechanism according to claim 1 or 2. The plurality of protruding portions and the plurality of recessed portions are
a third convex portion and a third concave portion which fit together via a gap narrower than the other convex portion and the other concave portion,
the third protrusion is located at an intermediate portion between the first end and the second end of the head support portion,
The water-spouting head support mechanism according to any one of claims 1 to 3. the first semi-cylindrical portion constitutes an upper portion of the head support portion, and the second semi-cylindrical portion constitutes a lower portion of the head support portion,
the other protrusions include restricting protrusions provided at the first end and the second end of the head support portion of the second semi-cylindrical portion, the restricting protrusions restricting upward movement of the mounting portion,
a gap between the head support portion and the mounting portion of the second semi-cylindrical portion is minimized between the restricting protrusion and the recess into which the restricting protrusion fits;
The water-spouting head support mechanism according to claim 3 . The restricting protrusion includes a restricting surface that is parallel to the horizontal direction and faces downward.
The water-spouting head support mechanism according to claim 5 . The gap between the plurality of protrusions and the plurality of recesses is constant in the longitudinal direction.
The water-spouting head support mechanism according to any one of claims 1 to 6. A faucet body having a retractable hose;
The water spouting head support mechanism according to any one of claims 1 to 7,
The head support member is attached to the faucet body,
The mounting portion of the water spouting head is detachably attached to the head support portion.
A faucet characterized by: The faucet body has a holding portion protruding obliquely upward,
The head support member is attached to the tip end of the holding portion such that the longitudinal direction of the plurality of protrusions is aligned with the protruding direction of the holding portion.
The faucet according to claim 8.

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