faucet

Abstract

To provide a faucet in which a water discharge pipe is oscillatably attached to a faucet body having a simple structure and a good appearance.SOLUTION: A faucet 1 has a water discharge pipe 3 oscillatably attached to a main body 2. The faucet comprises: a cylindrical second small diameter part 15 provided on the main body 2; and a cylindrical main body connecting part 20 provided on the water discharge pipe 3, wherein the second small diameter part 15 is inserted into the main body connecting part 20 so as to be rotatable relative to the main body connecting part. A substantially cylindrical second ring member 50 is disposed between the second small diameter part 15 and the main body connecting part 20. The second ring member 50 has a projection part 53 formed on an inner diameter surface 52 and a recess part 54 formed on an outer diameter surface part 51. The second small diameter part 15 is provided with an arcuate slit 19b for rotatably holding the projection part 53 within a predetermined range in a circumferential direction. The main body connecting part 20 is provided with a set screw 60 inserted into the recess part 54 to prevent the second ring member 50 from moving in the circumferential direction and the central axis direction.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a faucet. More specifically, it relates to a faucet in which a water discharge pipe is attached to a faucet body so as to be swingable.

Background Art

[0002] Conventionally, in a faucet in which a water discharge pipe is attached to a faucet body so as to be swingable, a structure for regulating the swing angle of the water discharge pipe has been proposed. In the faucet disclosed in Patent Document 1, there are a water discharge pipe, a faucet body part into which the water discharge pipe is fitted, an annular rotation regulating member arranged so as to contact the inner peripheral surface of the water discharge port of the faucet body part, and a fixing nut for rotatably connecting the water discharge pipe to the faucet body part. Further, a water discharge pipe side regulating part in which a part of the side surface part of the water discharge pipe extends in the axial direction is arranged at the end of the water discharge pipe on the side opposite to the water discharge port, and it has a main body side regulating part formed to project from the inner peripheral surface of the rotation regulating member. The rotation movement of the water discharge pipe is regulated by the water discharge pipe side regulating part coming into contact with the main body side regulating part as the water discharge pipe rotates.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the faucet disclosed in the above Patent Document 1, there is a problem that a main body side regulating part of a separate part is attached to the rotation regulating member and the structure is complicated. Also, the fixing nut is a large one having an outer diameter larger than the outer diameter of the faucet body and the whole is exposed to the outside. Thus, there is a problem that there is a possibility of deteriorating the appearance quality of the faucet.

[0005] In view of these problems, the object of the present invention is to provide a faucet in which the water outlet is attached to the faucet body in a manner that allows it to swivel, and which has a simple structure and good appearance. [Means for solving the problem]

[0006] The first invention of the present invention is a faucet in which a water outlet pipe is attached to a faucet body so as to be swivelable, comprising: a cylindrical first connecting portion provided on one of the faucet body and the water outlet pipe; and a cylindrical second connecting portion provided on the other of the faucet body and the water outlet pipe, wherein the first connecting portion is inserted into the second connecting portion so as to be rotatable relative to the first connecting portion, and a substantially cylindrical ring member is disposed between the first connecting portion and the second connecting portion to reduce rotational sliding resistance, wherein the ring member has a convex portion formed on its inner diameter surface that protrudes in the direction of the central axis, and a recess formed on its outer diameter surface at a position corresponding to the convex portion that is recessed in the direction of the central axis, wherein the first connecting portion is provided with an arc-shaped slit that holds the convex portion so as to be rotatable within a predetermined range in the circumferential direction, and the second connecting portion is provided with a screw that is inserted into the recess so as to make the ring member immobile in the circumferential and central axis directions.

[0007] According to the first invention, since the protrusion is formed integrally with the ring member, the structure is simple and assembly is easy, and since only the screw head is visible on the outside, it has a good appearance.

[0008] The second invention of the present invention is characterized in that, in the first invention described above, sliding surfaces are provided at both ends of the convex portion of the ring member in the direction of the central axis, and the ring member is configured such that the pressure on the sliding surfaces against the outer surface increases as the screw is tightened.

[0009] According to the second invention, the rotational sliding resistance of the water outlet pipe relative to the faucet body can be adjusted by changing the amount of tightening of the screws.

[0010] The third invention of the present invention is characterized in that, in the first invention or the second invention described above, the screw is a set screw without a head.

[0011] According to the third invention, the screw head does not protrude radially from the outer diameter surface of the second connection part and is not visible externally, resulting in a good appearance. [Brief explanation of the drawing]

[0012] [Figure 1] This is a perspective view of the top of a faucet, one embodiment of the present invention, seen from an oblique angle above. [Figure 2] This is an exploded perspective view of the faucet in the above embodiment. [Figure 3] This is a cross-sectional view taken along the line III-III in Figure 1. [Figure 4] This is a cross-sectional view taken along the line IV-IV in Figure 3. [Figure 5] This is a cross-sectional view taken along the line of arrow VV in Figure 3. [Figure 6] This is a perspective view of the ring component. [Figure 7] This is a cross-sectional view corresponding to Figure 3, which shows another embodiment. [Modes for carrying out the invention]

[0013] A faucet 1 according to one embodiment of the present invention will be described with reference to Figures 1 to 6. The faucet 1 is a hot and cold water mixing faucet installed on the top surface of a kitchen counter, and Figure 1 shows the upper part of the main body 2 and the spout pipe 3. In each figure, the front, back, left, right, up, and down directions are indicated by arrows relative to the user of the faucet 1, and descriptions of directions will be based on the directions indicated by these arrows.

[0014] As shown in Figures 1 to 3, the faucet 1 has a main body 2 and a spout pipe 3. The main body 2 is equipped with a spout pipe connecting part 10 located on the upper end side of a hot and cold water mixing section (not shown) that mixes hot and cold water to adjust the temperature. The spout pipe connecting part 10 has a large diameter section 11, which is a large diameter cylindrical section at the bottom, and a small diameter section 12, which is a small diameter cylindrical section located above the large diameter section 11. The large diameter section 11 and the small diameter section 12 are arranged coaxially, and the upper end of the large diameter section 11 and the lower end of the small diameter section 12 are connected by a flat plate-shaped connecting part 13 that extends radially. The outer diameter section 11a and the inner diameter section 11b of the large diameter section 11 are the same diameter and extend vertically. The small diameter section 12 has a first small diameter section 14 on the lower side, which is the side of the connecting part 13, and a second small diameter section 15 on the upper side, which is the side opposite to the connecting part 13. The diameter of the outer diameter portion 15a of the second small diameter portion 15 is set to be smaller than the diameter of the outer diameter portion 14a of the first small diameter portion 14. The diameter of the outer diameter portion 14a of the first small diameter portion 14 is set to be the same as the diameter of the outer diameter portion 21 of the main body connecting portion 20 of the water discharge pipe 3, which will be described later. Also, the diameter of the outer diameter portion 15a of the second small diameter portion 15 is set to be slightly smaller than the diameter of the inner diameter portion 22 of the main body connecting portion 20 of the water discharge pipe 3. The inner diameter portion 14b of the first small diameter portion 14 and the inner diameter portion 15b of the second small diameter portion 15 are connected by a reduced diameter portion 14c, the diameter of which gradually decreases as it goes upwards. The inner diameter portions 11b, 14b, 14c, and 15b are connected in a watertight state. Here, the main body portion 2 corresponds to the "faucet body" in the claims. Furthermore, the second small-diameter portion 15 corresponds to the "first connecting portion" in the claims.

[0015] As shown in Figures 2 and 3, the outer diameter portion 15a of the second small diameter portion 15 has a first annular groove 16, a second annular groove 17, a third annular groove 18, and a fourth annular groove 19 formed in order from the lower side of the first small diameter portion 14 upwards. The first annular groove 16, the second annular groove 17, and the third annular groove 18 have a rectangular cross-section that is almost identical in the circumferential direction. A first ring member 30 made of resin is fitted into the first annular groove 16. O-rings 40 are fitted into the second annular groove 17 and the third annular groove 18. The fourth annular groove 19 has a rectangular cross-section in the circumferential direction, and its vertical dimension in the long axis direction is set to be about three times the vertical dimension of the first annular groove 16, the second annular groove 17, and the third annular groove 18, while its radial dimension in the short axis direction is set to be about 1.5 times the radial dimension of the first annular groove 16, the second annular groove 17, and the third annular groove 18. The radial dimension of the cross-section of the fourth annular groove 19 in the short axis direction, that is, the radial depth of the fourth annular groove 19, is set to approximately half the radial thickness of the second small diameter portion 15. The radial thickness of the second small diameter portion 15 is the radial dimension between the outer diameter portion 15a and the inner diameter portion 15b. An arc-shaped slit 19b that penetrates radially is formed on the rear side of the bottom surface portion 19a of the fourth annular groove 19. The slit 19b is formed in the vertical center of the bottom surface portion 19a, and its circumferential dimension can be approximately 2 / 12 to 5 / 12 of the circumference of the inner diameter portion 15b, but in this example it is set to approximately 4 / 12. The upper and lower bottom surfaces 19a of the slit 19b are designated as contact portions 19c. In addition, both circumferential end faces of the slit 19b are designated as main body side restricting portions 19d. A second ring member 50 made of resin is fitted into the fourth annular groove 19. Here, the second ring member 50 corresponds to the "ring member" in the claims. Also, the contact portion 19c corresponds to the "outer surface" in the claims.

[0016] As shown in Figures 3 to 6, the second ring member 50 is a substantially cylindrical resin member with a substantially rectangular circumferential cross-section, and has an outer diameter surface portion 51 and an inner diameter surface portion 52. The radial thickness of the second ring member 50, that is, the radial dimension between the outer diameter surface portion 51 and the inner diameter surface portion 52, is set to be slightly larger than the radial depth of the fourth annular groove 19 in the second small diameter portion 15 of the main body portion 2. The vertical dimension of the second ring member 50, that is, the dimension in the direction of the central axis, is set to be slightly smaller than the vertical dimension of the fourth annular groove 19 in the second small diameter portion 15. A protrusion 53 is formed on a part of the inner diameter surface portion 52, projecting radially inward. The radial projection dimension of the protrusion 53 toward the inside is approximately half the radial thickness of the second small diameter portion 15, and the tip surface 53a of the protrusion 53 is formed to be flush with the inner diameter portion 15b of the second small diameter portion 15 when the second ring member 50 is fitted into the fourth annular groove 19. The circumferential dimension of the protrusion 53 is approximately 1 / 12 of the total circumference of the inner diameter portion 15b of the second small diameter portion 15. The vertical dimension of the protrusion 53, i.e., the dimension in the direction of the central axis, is approximately half the vertical dimension of the second ring member 50. Both circumferential ends of the protrusion 53 are designated as discharge pipe side restricting portions 53b. The upper and lower inner diameter surfaces 52 of the protrusion 53 are designated as sliding surfaces 52a. On the radially outer side of the protrusion 53 of the second ring member 50, a recess 54 is formed that curves radially inward from the outer diameter surface 51. The recess 54 is formed to conform to the shape of the tip of the set screw 60, so that when the set screw 60 is tightened, the tip of the set screw 60 makes surface contact with the recess 54. On the radially opposite side of the protrusion 53 of the second ring member 50, a dividing slit 55 is formed that penetrates the second ring member 50 vertically and divides it circumferentially. Here, the set screw 60 corresponds to the "screw" in the claims.

[0017] As shown in FIGS. 2 and 3, the first ring member 30 is a resin-made substantially cylindrical member with a substantially L-shaped cross-section in the circumferential direction, and has an outer diameter surface portion 31 and an inner diameter surface portion 32. The diameter of the outer diameter surface portion 31 is set slightly smaller than the inner diameter of the tip thin-walled portion 23 of the main body connection portion 20 in the water discharge pipe 3. The inner diameter surface portion 32 has a lower inner diameter surface portion 32a with a larger diameter on the lower side and an upper inner diameter surface portion 32b with a smaller diameter than the lower inner diameter surface portion 32a on the upper side. The diameter of the lower inner diameter surface portion 32a is substantially the same as the outer diameter of the outer diameter portion 15a of the second small diameter portion 15, and the diameter of the upper inner diameter surface portion 32b is substantially the same as the diameter of the bottom surface portion 16a of the first annular groove 16 in the second small diameter portion 15. A split slit 33 that penetrates in the vertical direction and is divided in the circumferential direction is also formed in the first ring member 30.

[0018] As shown in FIGS. 1 to 3, the water discharge pipe 3 is a circular pipe curved in a gooseneck shape, with a water discharge port 3a provided at one end and a main body connection portion 20 with an axis extending in the vertical direction provided at the other end. A draw-out discharge pipe (not shown) is detachably attached to the water discharge port 3a, and a flexible pipe (not shown) extending from the draw-out discharge pipe passes through the water discharge pipe 3 and extends downward from the main body connection portion 20. The main body connection portion 20 has an outer diameter portion 21 with the same outer diameter as the first small diameter portion 14 of the main body portion 2 and an inner diameter portion 22 with an inner diameter slightly larger than the outer diameter of the outer diameter portion 15a of the second small diameter portion 15 of the main body portion 2. A tip thin-walled portion 23 with an increased inner diameter is formed at the lower end portion of the inner diameter portion 22. The vertical dimension of the tip thin-walled portion 23 is substantially equal to the vertical dimension of the first ring member 30. A screw hole 24 with a female screw cut in the radial direction is provided at the upper portion of the main body connection portion 20. The screw hole 24 is configured to allow a set screw 60 to be screwed in. The vertical position of the screw hole 24 is set such that when the main body connection portion 20 of the water discharge pipe 3 is fitted to the second small diameter portion 15 of the main body portion 2, the set screw 60 can enter the recess 54 of the second ring member 50 attached to the second small diameter portion 15. Here, the main body connection portion 20 corresponds to the "second connection portion" in the claims.

[0019] The method for assembling the water outlet pipe 3 to the main body 2 will now be explained. First, as shown in Figures 2 and 3, the first ring member 30, two O-rings 40, and the second ring member 50 are attached to the second small diameter portion 15 of the main body 2. Specifically, the first ring member 30 is fitted into the first annular groove 16 by expanding it circumferentially from the dividing slit 33, with its upper inner diameter surface portion 32b being fitted in. The O-rings 40 are then fitted into the second annular groove 17 and the third annular groove 18 by expanding them from above and pushing them down. Next, the second ring member 50 is fitted into the fourth annular groove 19 by expanding it circumferentially from the dividing slit 55. At this time, the protrusion 53 is made to enter the slit 19b and slide circumferentially. The main body connecting portion 20 of the water discharge pipe 3 is fitted onto the second small-diameter portion 15, which has the first ring member 30, two O-rings 40, and the second ring member 50 attached, so that the thin-walled tip portion 23 abuts against the outer diameter surface portion 31 of the first ring member 30. Then, the water discharge pipe 3 is rotated relative to the main body portion 2 so that the recess 54 of the second ring member 50 aligns with the threaded hole 24 of the water discharge pipe 3 and the set screw 60 is screwed in. At this time, the amount of screwing in the set screw 60 after the tip of the set screw 60 abuts against the bottom of the recess 54 of the second ring member 50 can be adjusted so that the force with which the sliding surface portion 52a abuts against the contact portion 19c of the second small-diameter portion 15 is changed. In this way, the rotational sliding resistance of the water discharge pipe 3 relative to the main body portion 2 can be adjusted by adjusting the amount of screwing in the set screw 60. As shown in Figures 1, 3, and 4, when the spout 3a of the spout pipe 3 is facing forward (towards the user), the position of the protrusion 53 is at the midpoint of the circumferential direction of the slit 19b in the rearward direction. From here, the spout pipe 3 can rotate approximately 30 degrees to the left and right until one of the spout pipe-side restricting portions 53b of the protrusion 53 contacts one of the main body-side restricting portions 19d of the slit 19b. At this time, the first ring member 30 and the second ring member 50 work to smooth the rotational sliding of the spout pipe 3 relative to the main body 2, and the O-ring 40 works to maintain watertightness between the main body 2 and the spout pipe 3. Finally, the flexible pipe attached to the discharge pipe is inserted from the spout 3a side of the spout pipe 3 and passed through to the inner diameter portion 11b of the main body 2.

[0020] The present embodiment configured as described above has the following operational effects. The convex portion 53 of the second ring member 50 fixedly attached to the water discharge pipe 3 in the vertical and circumferential directions is attached so as to be movable in the circumferential direction while being inserted into the slit 19b of the main body portion 2. As a result, the water discharge pipe 3 can swing left and right with respect to the main body portion 2 until any one of the water discharge pipe side regulating portions 53b of the convex portion 53 abuts against any one of the main body side regulating portions 19d of the slit 19b. Thus, since it is only necessary to arrange the second ring member 50 between the main body portion 2 and the water discharge pipe 3, the structure is simple and the assembly work is easy. Further, since only the head of the set screw 60 appears on the appearance, it looks good.

[0021] Also, sliding surface portions 52a are provided on the upper and lower inner diameter surface portions 52 of the convex portion 53 of the second ring member 50, and the sliding surface portions 52a are configured such that the pressure for abutting against the abutting portion 19c of the second small diameter portion 15 increases as the tightening amount of the set screw 60 increases. Thereby, by changing the tightening amount of the set screw 60, the rotational sliding resistance of the water discharge pipe 3 with respect to the main body portion 2 can be adjusted.

[0022] Furthermore, since the set screw 60 does not have a screw head, the appearance looks even better because the screw head does not radially protrude from the outer diameter portion 21 of the water discharge pipe 3.

[0023] Fig. 7 shows a faucet 1A according to another embodiment of the present invention. The cross-section shown in Fig. 7 corresponds to the cross-section shown in Fig. 3 of the faucet 1 in the above-described embodiment. Regarding the configuration overlapping with the above-described embodiment, the same reference numerals are given in the drawings and the description thereof is omitted. The difference from the faucet 1 of the above-described embodiment is generally that the arrangement positions of the first ring member 30A and the second ring member 50 in the second small diameter portion 15A of the main body portion 2A are reversed up and down with respect to the arrangement positions of the first ring member 30 and the second ring member 50 in the second small diameter portion 15 of the main body portion 2 of the faucet 1. Here, the main body portion 2A corresponds to the "faucet main body" in the claims.

[0024] On the outer diameter portion 15aA of the second small diameter portion 15A, the fourth annular groove 19A, the second annular groove 17, the third annular groove 18, and the first annular groove 16A are formed in order from the lower side of the first small diameter portion 14 upwards. The first annular groove 16A has a rectangular cross-section that is almost identical in the circumferential direction, and its vertical dimension, which is the long axis direction, is set to be about twice the vertical dimension of the second annular groove 17 and the third annular groove 18, while its radial dimension, which is the short axis direction, is set to be slightly longer than the radial dimension of the second annular groove 17 and the third annular groove 18. A first ring member 30A made of resin is fitted into the first annular groove 16A. The fourth annular groove 19A has a roughly rectangular cross-section in the circumferential direction, with its vertical dimension (long axis) set to approximately three times the vertical dimension of the second annular groove 17 and the third annular groove 18, and its radial dimension (short axis) set to approximately the same as the radial dimension of the first annular groove 16A. The radial dimension (short axis) in the cross-section of the fourth annular groove 19A, i.e., the radial depth of the fourth annular groove 19A, is set to approximately half the radial thickness of the second small diameter portion 15A. The radial thickness of the second small diameter portion 15A is the radial dimension between the outer diameter portion 15aA and the inner diameter portion 15b. An arc-shaped slit 19bA that penetrates radially is formed on the rear side of the bottom surface portion 19aA of the fourth annular groove 19A. The slit 19bA is formed in the vertical center of the bottom portion 19aA, and its circumferential dimension is approximately 5 / 12 of the total circumference of the inner diameter portion 15b. The upper and lower bottom portions 19aA of the slit 19bA are designated as contact portions 19cA. The circumferential end faces of the slit 19bA are designated as main body side restricting portions 19dA. A second ring member 50 made of resin is fitted into the fourth annular groove 19A. Here, the second small diameter portion 15A and the contact portion 19cA correspond to the "first connecting portion" and "outer circumferential surface" in the claims, respectively.

[0025] The first ring member 30A is a cylindrical resin member with a rectangular cross-section in the circumferential direction, and has an outer diameter surface portion 31A and an inner diameter surface portion 32A. The diameter of the outer diameter surface portion 31A is set to be slightly smaller than the diameter of the inner diameter portion 22 of the main body connecting portion 20 in the water outlet pipe 3A. The diameter of the inner diameter surface portion 32A is set to be approximately the same as the diameter of the bottom surface portion 16aA of the first annular groove 16A in the second small diameter portion 15A. The first ring member 30A also has a dividing slit that penetrates vertically and divides in the circumferential direction. The water outlet pipe 3A differs from the faucet 1 in that it does not have a thin-walled tip portion 23 and the vertical position of the screw hole 24 is different.

[0026] The method for assembling the water outlet pipe 3A to the main body 2A will now be explained. First, the second ring member 50, the two O-rings 40, and the first ring member 30A are attached to the second small diameter portion 15A of the main body 2A. Specifically, the second ring member 50 is fitted into the fourth annular groove 19A while expanding it circumferentially from the dividing slit 55. At this time, the protrusion 53 is made to enter the slit 19bA and slide circumferentially. The O-rings 40 are fitted into the second annular groove 17 and the third annular groove 18, respectively, by expanding them from above and pushing them down. Next, the first ring member 30A is fitted into the first annular groove 16A while expanding it circumferentially from the dividing slit. The main body connecting portion 20 of the water outlet pipe 3A is fitted over the second small diameter portion 15A, which now has the first ring member 30A, the two O-rings 40, and the second ring member 50 attached. Then, the water outlet pipe 3A is rotated relative to the main body 2A so that the recess 54 of the second ring member 50 and the threaded hole 24 of the water outlet pipe 3A are aligned and the set screw 60 is screwed in. At this time, the tip of the set screw 60 comes into contact with the bottom of the recess 54 of the second ring member 50, and the amount of screwing it in can be adjusted so that the force with which the sliding surface 52a contacts and presses against the contact portion 19cA of the second small diameter portion 15A can be changed. In this way, the rotational sliding resistance of the water outlet pipe 3A relative to the main body 2A can be adjusted by adjusting the amount of screwing in the set screw 60. When the water outlet 3a of the water outlet pipe 3A is facing forward (towards the user), the position of the protrusion 53 is at the midpoint of the circumferential direction of the slit 19bA in the rear direction. From this point, the discharge pipe 3A can rotate approximately 30 degrees to the left and right until one of the discharge pipe-side restricting portions 53b of the protrusion 53 contacts one of the main body-side restricting portions 19dA of the slit 19bA. At this time, the first ring member 30A and the second ring member 50 work to facilitate the rotational sliding of the discharge pipe 3A relative to the main body 2A, and the O-ring 40 works to maintain watertightness between the main body 2A and the discharge pipe 3A.

[0027] As described above, this embodiment provides the following advantages. The protrusions 53 of the second ring member 50, which are fixedly attached to the water outlet pipe 3A in the vertical and circumferential directions, are mounted so as to be movable in the circumferential direction while inserted into the slit 19bA of the main body 2A. As a result, the water outlet pipe 3A can swivel left and right relative to the main body 2A until one of the water outlet pipe-side restricting portions 53b of the protrusions 53 contacts one of the main body-side restricting portions 19dA of the slit 19bA. Thus, since it is only necessary to interpose the second ring member 50 between the main body 2A and the water outlet pipe 3A, the structure is simple and assembly is easy. In addition, since only the heads of the set screws 60 are visible externally, it has a good appearance.

[0028] Furthermore, sliding surfaces 52a are provided on the upper and lower inner diameter surfaces 52 of the protrusion 53 of the second ring member 50, and the sliding surfaces 52a are configured such that the pressure in contact with the contact portion 19cA of the second small diameter portion 15A increases as the amount of tightening of the set screw 60 increases. This makes it possible to adjust the rotational sliding resistance of the water discharge pipe 3A relative to the main body portion 2A by changing the amount of tightening of the set screw 60.

[0029] Furthermore, since the set screw 60 does not have a screw head, the screw head does not protrude radially from the outer diameter portion 21 of the water outlet pipe 3A, resulting in an even better appearance.

[0030] Although specific embodiments have been described above, the present invention is not limited to their appearance and configuration, and various modifications, additions, and deletions are possible without altering the essence of the invention. For example, the following can be made.

[0031] 1. In the above embodiment, the main body connecting portion 20 of the water discharge pipe 3 is fitted so that it overlaps the second small diameter portion 15 of the main body portion 2 from the radially outside. However, the configuration is not limited to this, and the main body connecting portion 20 of the water discharge pipe 3 may be made small in diameter so that the water discharge pipe connecting portion 10 of the main body portion 2 is fitted so that it overlaps from the radially outside.

[0032] 2. In the above embodiment, a headless set screw 60 was used to prevent the second ring member 50 from moving in the circumferential and central axis directions relative to the main body connecting portion 20 of the water discharge pipe 3. However, this is not the only option; a screw with a head can also be used if a slight deterioration in appearance is acceptable.

[0033] The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the present invention is indicated by the claims rather than by the description of the embodiments above, and all modifications within the meaning and scope equivalent to the claims are intended to be included. [Explanation of Symbols]

[0034] 1,1A Faucet, 2,2A Main body (faucet body), 3,3A Water outlet, 10 Water outlet connection, 12 Small diameter section, 15,15A Second small diameter section, 15a,15aA Outer diameter section, 15b Inner diameter section, 19,19A Fourth annular groove, 19b,19bA Slit, 19c,19cA Contact section (outer surface), 19d,19dA Main body side regulating section, 20 Main body connection section, 21 Outer diameter section, 22 Inner diameter section, 24 Screw hole, 50 Second ring member (ring member), 51 Outer diameter surface section, 52 Inner diameter surface section, 52a Sliding surface section, 53 Convex section, 53b Water outlet side regulating section, 54 Recessed section, 60 Set screws (screws)

Claims

1. A faucet in which the water outlet is attached to the faucet body so as to be able to swivel, The faucet has a cylindrical first connecting portion provided on one of the faucet body and the spout pipe, and a cylindrical second connecting portion provided on the other of the faucet body and the spout pipe, wherein the first connecting portion is inserted into the second connecting portion and is rotatable relative to it. A substantially cylindrical ring member is provided between the first connecting portion and the second connecting portion to reduce rotational sliding resistance. The ring member has a protrusion formed on its inner diameter surface that projects in the direction of the central axis, and a recess formed on its outer diameter surface at a position corresponding to the protrusion that recesses in the direction of the central axis. The first connecting portion is provided with an arc-shaped slit that holds the protrusion so that it can rotate within a predetermined range in the circumferential direction. The second connecting portion is provided with a screw that is inserted into the recess and prevents the ring member from moving in the circumferential and central axis directions.

2. In claim 1, The ring member is provided with sliding surfaces at both ends of the protrusion in the direction of the central axis, which slide against the outer surface of the first connecting portion. A faucet configured such that the pressure on the sliding surface against the outer circumferential surface increases as the screw is tightened.

3. In claim 1 or claim 2, The screw in question is a set screw without a head, used in a faucet.

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