JP4431839B2 - Single faucet - Google Patents

Description

The present invention relates to a single water faucet, and more specifically, a structure for attaching a single water faucet such as a horizontal water faucet or a water faucet to the front end of a water supply pipe exposed from a hole in a faucet mounting surface such as a wall surface. About.
In this specification, the “faucet mounting surface” includes the upper surface of a horizontal plate such as a counter in addition to the wall surface.

  In general, a single water faucet has a single valve portion, and water discharge, water stoppage, and flow rate adjustment are performed by opening and closing the valve portion by operating a handle.

To attach the single faucet to the wall surface, wrap a seal tape around the male threaded water inlet formed at the rear of the faucet body, and then connect the male threaded water inlet to the front end of the water supply pipe. It is carried out by screwing into the female thread part of the pipe joint constituting.
The above screwing operation is performed when the distance between the outer annular decorative flange portion formed near the base end portion of the water inlet in the faucet body and the wall surface is reduced to a predetermined distance. However, if the seal tape is unscrewed as much as possible, the sealing performance will be impaired and water leakage will occur.

  However, the above-described mounting operation requires skilled techniques / experience regarding grasping the number of windings / winding of the sealing tape and the distance between the decorative flange and the wall surface. When a construction beginner installs a single faucet, there is a high possibility that construction will be insufficient and water leakage will occur, or the direction of the handle will not come to the proper position, and eventually it will be necessary to ask a specialist contractor. There was a problem.

By the way, when the mixing faucet was attached to the wall surface, there was a construction problem similar to the above. As a means for solving this problem, the present inventor used the following for the mixing faucet connection. A pipe joint was proposed (see Patent Document 1 below).
That is, this mixed water faucet connection pipe joint is rotatable to the first tubular joint member from the front end side of a horizontal tubular first pipe joint member having a male threaded pipe connection port on the rear end side. And a rotating cylinder part fitted in such a manner that it can be moved back and forth, a hollow arm part extending in the radial direction from the front end of the rotating cylinder part, and a mixing faucet connection port provided in a forward projecting manner at the tip of the arm part And a second pipe joint member. On the inner peripheral surface of the rotating tube portion of the second pipe joint member, one engaging convex portion or a plurality of engaging convex portions are formed at intervals in the circumferential direction. An annular groove that accommodates the engaging convex portion is formed on the outer peripheral surface of the first pipe joint member, and the rotating cylindrical portion is moved rearward on the rear side surface of the annular groove to engage with the engaging convex portion. One or more engaging recesses to be matched are formed at intervals in the circumferential direction.

According to the above-described pipe joint, first, the rotating cylinder part of the second pipe joint member is moved rearward, and the engagement convex part is engaged with the engagement concave part of the first pipe joint member. By this operation, the rotation cylinder part of the second pipe joint member is made unrotatable with respect to the first pipe joint member. Moreover, a sealing tape is wound around the male screw of the pipe connection port of the first pipe joint member. Then, by holding the second pipe joint member by hand in this state and turning it in the required direction, the male thread at the pipe connection port of the first pipe joint member is screwed into the female thread at each front end of the hot water supply pipe and the water supply pipe. . After the screwing operation is completed, when the rotating cylinder portion is moved forward, the engaging convex portion is disengaged from the engaging concave portion and is positioned in the annular groove, and the rotating cylindrical portion rotates with respect to the first pipe joint member. It becomes possible. Then, the rotation tube part is rotated by a required angle so that the mixing faucet connection port is at a position suitable for connecting the mixing faucet, and the mixing faucet connection port is connected to the hot water of the mixing faucet body or Connect to the water inlet.
In this way, if the above-mentioned mixed water tap connection pipe joint is used, even a so-called beginner of construction can connect the mixed water tap to the hot water supply pipe and the water supply pipe without requiring skill and experience. This can be done very easily and reliably.

However, in the case of the mixed water faucet, there are two connection points on the left and right of the hot water supply pipe and the water supply pipe. Therefore, even if the above pipe joint is used, the rotating cylinder portion of each pipe joint rotates after the construction, causing a problem. However, if the structure of this pipe joint is applied as it is to the mounting structure of a single water faucet, there is a problem because the rotating cylinder part rotates freely after construction.
JP 2006-118118 A

  An object of the present invention is to provide a single water faucet that can be easily and reliably attached to a wall surface or the like even for a beginner of construction.

  A first single faucet according to the present invention has a faucet body having a water inlet opening opened at the rear end thereof, and is rotatably provided around the axis of the water inlet and exposed from a hole in the faucet mounting surface. A cylindrical male screw member that is screwed into the female screw portion at the front end of the water supply pipe, and a lock member that is provided on the front portion of the male screw member around the water introduction port portion so as to be movable back and forth. The lock member can be engaged with each other at a plurality of relative rotation positions when the lock member comes to the rearward movement end to prevent the relative rotation of the two, while the lock member is engaged when the lock member comes to the front movement end. An engagement portion that can be released to allow relative rotation between the two is formed, and further includes holding means for holding the lock member at the rearward movement end.

The 1st single water tap by this invention can be attached to faucet attachment surfaces, such as a wall surface, as follows, for example. That is, first, a seal tape is wound around the male screw member. Further, by positioning the lock member at the rearward movement end, the male screw member and the lock member, and thus the male screw member and the faucet body are prevented from rotating relative to each other.
Then, hold the faucet body by hand and screw the male screw member into the female screw portion at the front end of the water supply pipe.
When the male screw member is screwed into the female screw portion by the necessary amount of rotation, the direction of the faucet body in the rotational direction is confirmed. And, for example, when the handle attached to the faucet body is not in the proper position, if the holding means is released and the lock member is moved to the forward moving end, the faucet body rotates relative to the male screw member. Because it becomes free, the faucet body is rotated to an appropriate position.
Next, when the lock member is moved to the rearward movement end, the engagement portion of the lock member is engaged with the engagement portion of the male screw member, and the male screw member and the lock member, and thus the male screw member and the single water faucet. It is made not to rotate relative to the main body.
Then, the lock member is held at the rearward movement end by the holding member so that the lock member is not carelessly moved to the forward movement end and the faucet body rotates.
As described above, according to the first single faucet of the present invention, the orientation of the faucet body in the rotational direction can be very easily adjusted when it is attached to a wall surface or the like. It can be easily and securely attached to a wall or the like.

  In the first single water faucet according to the present invention, it is preferable that the engaging portions of the male screw member and the lock member are constituted by serrations that mesh with each other.

  If the engaging portions of the male screw member and the lock member are constituted by serrations, the relative rotational positions of both members can be finely adjusted, the structures of both members are not complicated, and the manufacturing cost can be reduced.

  In the first single water faucet according to the present invention, the holding means may include a spring that urges the lock member toward the male screw member.

  When the holding means is composed of a spring, after adjusting the rotational position of the faucet body, if the hand is released from the forward movement end, that is, the lock member at the unlocking position, the lock member moves backward by the elastic force of the spring. Since it automatically moves to the end, that is, the locked position where the engaging portions engage with each other, and is held in that position after the movement, it is easy to use and the efficiency of the mounting work is improved.

  Further, in the first single water faucet according to the present invention, the holding means may be formed by a female screw member that is screwed into a male screw portion formed in the water introduction port portion and tightens the lock member toward the male screw member. is there.

  When the holding means is constituted by a female screw member, the lock member can be more reliably held at the rearward movement end, that is, the lock position.

  Next, a second single water faucet according to the present invention includes a water faucet body having a water introduction port portion opened at the rear end, a water introduction port portion rotatably connected to the water introduction port portion around its axis, and a faucet mounting surface. A cylindrical male screw member that is screwed into the female screw portion at the front end of the water supply pipe exposed from the hole, and the water introduction port portion is movable back and forth with respect to the male screw member. The male screw member and the water introduction port When the water introduction port portion comes to the front moving end, the water introduction port portion can be engaged with each other at a plurality of relative rotation positions to prevent relative rotation of both, while the water introduction port portion comes to the rear movement end. An engaging portion that can release the engagement and allow relative rotation between the two is formed, and holding means for holding the water introduction port portion at the front moving end is further provided.

The 2nd single water tap by this invention can be attached to faucet attachment surfaces, such as a wall surface, as follows, for example. That is, first, a seal tape is wound around the male screw member. Further, the water inlet port of the faucet body is positioned at the forward moving end so that the male screw member and the faucet body do not rotate relative to each other.
Then, hold the faucet body by hand and screw the male screw member into the female screw portion at the front end of the water supply pipe.
When the male screw member is screwed into the female screw portion by the necessary amount of rotation, the direction of the faucet body in the rotational direction is confirmed. And, for example, if the handle attached to the faucet body is not in the proper position, moving the faucet body to the rearward movement end makes the faucet body rotatable relative to the male screw member. Rotate the faucet body to the proper position.
Next, when the faucet body is moved to the forward moving end, the engaging portion of the water introduction port engages with the engaging portion of the male screw member so that the male screw member and the faucet body do not rotate relative to each other. To be made.
Thereafter, the water introduction port portion is held at the front movement end by the holding means so that the water introduction port portion does not carelessly move to the rear movement end and the faucet body rotates.
As described above, according to the second single faucet of the present invention, it is possible to adjust the orientation of the faucet body in the rotational direction very easily, and even a beginner can easily and reliably use a wall surface or the like. Can be attached to. Moreover, according to the 2nd single water tap by this invention, since a number of parts decreases compared with a 1st single water tap, manufacturing cost can be suppressed by that much.

  In the second single water faucet according to the present invention, it is preferable that the water introduction port portion and the engaging portion of the male screw member are constituted by serrations meshing with each other.

  If the engaging portions of the two are constituted by serrations, the relative rotational position can be finely adjusted, and the structure of both is simplified and the manufacturing cost can be reduced.

  In the second single water faucet according to the present invention, it is preferable that a spring for urging the water introduction port portion forward is provided.

  If the spring as described above is provided, if the hand is released from the faucet body after adjusting the direction of the direction of rotation of the faucet body, the faucet body is moved forward by the elastic force of the spring, that is, Since it automatically moves to the locked position where the engaging portions engage with each other, it is easy to use and the efficiency of the mounting work is improved.

  In the second water faucet according to the present invention, the holding means is screwed into the male screw portion formed in the water introduction port portion, and the rear end abuts on the water faucet mounting surface, so that the water introduction port portion is moved backward. There may be a case of a female screw member that prevents movement.

  When the holding means is constituted by a female screw member, the water introduction port can be reliably held at the forward moving end, that is, the lock position, and the structure is simplified and the cost is also reduced.

  A third single water faucet according to the present invention has a water faucet body having a water inlet opening opened at the rear end, and is connected to the water inlet opening so as to be rotatable about its axis and exposed from a hole in the faucet mounting surface. A cylindrical male screw member that is screwed into the female screw portion at the front end of the water supply pipe, and the water inlet port is movable back and forth with respect to the male screw member. When the water introduction port part comes to the rear moving end, it can be engaged with each other at a plurality of relative rotational positions to prevent the relative rotation of the two, while the water introduction port part engages when the water introduction port part comes to the front movement end. An engagement portion that can be released to allow relative rotation between the two is formed, and further, holding means for holding the water introduction port portion at the rearward movement end is provided.

The third single faucet according to the present invention can be attached to a faucet attachment surface such as a wall surface as follows. That is, first, a seal tape is wound around the male screw member. Further, the water inlet port of the faucet body is positioned at the rearward movement end so that the male screw member and the faucet body do not rotate relative to each other.
Then, hold the faucet body by hand and screw the male screw member into the female screw portion at the front end of the water supply pipe.
When the male screw member is screwed into the female screw portion by the necessary amount of rotation, the direction of the faucet body in the rotational direction is confirmed. And, for example, if the handle attached to the faucet body is not in the proper position, moving the faucet body to the forward moving end makes the faucet body rotatable relative to the male screw member. Rotate the faucet body to the proper position.
Next, when the faucet body is moved to the rearward movement end, the engaging portion of the water introduction port is engaged with the engaging portion of the male screw member so that the male screw member and the faucet body do not rotate relative to each other. To be made.
Thereafter, the water introduction port portion is held at the rear movement end by the holding means so that the water introduction port portion does not carelessly move to the front movement end and the faucet body rotates.
Therefore, according to the third single faucet of the present invention, it is possible to adjust the orientation of the faucet body in the rotation direction very easily, and even a beginner can easily and surely attach it to a wall surface or the like. Can do. Further, according to the third single water tap according to the present invention, the number of parts is reduced as compared with the first single water tap, so that the manufacturing cost can be reduced accordingly.

  In the third single water faucet according to the present invention, it is preferable that the water introduction port portion and the engaging portion of the male screw member are constituted by serrations that mesh with each other, thereby enabling fine adjustment of the relative rotational position. Moreover, both structures are simplified, and the manufacturing cost can be suppressed.

In the third single water faucet according to the present invention, the holding means may be composed of a spring that biases the water introduction port portion forward.
If the holding means is constituted by a spring, the water introduction port portion is moved forward, that is, the water faucet body at the unlocking position is appropriately rotated to adjust the direction and then released from the water faucet body. Due to the elastic force, the water introduction port portion automatically moves to the rearward movement end, that is, the lock position, and is held at the same position thereafter, so that it is easy to use and the efficiency of the attachment work is improved.
The holding means may of course use other means such as a set screw instead of or in addition to the spring.

(First embodiment)
1 to 9 show a first embodiment of the present invention. In this embodiment, the present invention is applied to a single faucet (horizontal faucet) (1A) attached to a wall surface (W).
The illustrated single faucet (1A) is connected to a faucet body (2) having a water introduction port portion (21) opened at the rear end, and to the water introduction port portion (21) so as to be rotatable around its axis. A cylindrical male screw member (3) screwed into the female screw portion (P1) at the front end of the water supply pipe exposed from the hole (W1) of the wall surface (W), and a male screw member around the water introduction port portion (21) ( And a locking member (4) provided at the front portion of 3) so as to be movable back and forth.
The male screw member (3) and the lock member (4) are engaged with each other at a plurality of relative rotation positions when the lock member (4) comes to the rearward movement end, and the relative rotation of the two (3) and (4). On the other hand, when the lock member (4) comes to the front moving end, the engagement portion (31) (41) is formed which is disengaged to allow relative rotation of both (3) and (4). Has been.
Furthermore, the single water faucet (1A) includes holding means (5) for holding the lock member (4) at the rearward movement end.

  In this embodiment, the female screw portion (P1) is formed on the other end side of the L-shaped pipe joint (P) having one end connected to the upper end of a water supply pipe (not shown) arranged vertically on the back side of the wall. Has been. Moreover, the outward annular flange part (P2) which contact | abuts to the peripheral part of the hole (W1) in a wall surface (W) is formed in the other end part of a pipe joint (P).

  The faucet body (2) has, in addition to the water inlet port (21), a water outlet port (22) opened forward and a valve portion insertion port (23) opened upward. A spout (24) is rotatably connected to the water outlet (22). A spindle (26) of the valve part (25) (see FIG. 6) is rotatably inserted into the valve part insertion port part (23). A handle (27) is attached to the upper end of the spindle (26).

As shown in FIGS. 1 to 5, the water introduction port portion (21) is formed at the rear end portion of the faucet main body (2) and has a horizontal cylindrical portion (211) having an internal thread portion (211) on the inner peripheral surface. 21a), a first cylindrical member (21b) having a male screw part (212) screwed into the horizontal cylindrical part (21a) at the front part of the outer peripheral surface and a female screw part (213) at the rear part of the inner peripheral surface; The second cylindrical member (21c) has a male screw portion (214) screwed into the female screw portion (213) of the first cylindrical member (21b) at the front portion of the outer peripheral surface.
The 1st cylindrical member (21b) has a serration (215) in the rear part of the outer peripheral surface. A rearward annular step (216) is formed on the inner peripheral surface of the first cylindrical member (21b) so as to be substantially flush with the inner peripheral surface of the second cylindrical member (21c) screwed into the first cylindrical member (21b). Has been. A forward annular step (217) that contacts the rear end surface of the horizontal tubular portion (21a) is formed in the intermediate portion of the length of the outer peripheral surface of the first tubular member (21b).
A forward annular step (218) facing the rear end surface of the first cylindrical member (21b) with a predetermined gap is formed in the middle portion of the outer peripheral surface of the second cylindrical member (21c). Yes.
The horizontal tubular portion (21a) and the first tubular member (21b), and the first tubular member (21b) and the second tubular member (21c) are formed of these screw portions (211) (212), ( 213) and (214) are completely water-stopped by bonding each other.

  The first tubular member (21b) of the water inlet port (21) may be formed integrally with the horizontal tubular portion (21a) of the faucet body (2). In this case, as shown in FIG. 6, a diameter substantially equal to the inner diameter of the second cylindrical member (21c) is formed in the middle portion of the inner peripheral surface of the horizontal cylindrical portion (210a) of the faucet body (2). An annular inward convex portion (219) is formed, and is screwed with the external thread portion (214) of the second tubular member (21c) at a rear portion of the annular inner convex portion (219) on the inner peripheral surface. An internal thread portion (213) to be formed is formed. Further, a serration (215) is formed at the rear portion of the outer peripheral surface of the horizontal cylindrical portion (210a), and a rearward annular step (220) is formed at the intermediate portion of the length of the outer peripheral surface.

  The male screw member (3) has a substantially horizontal cylindrical shape, and is rotatably fitted on the second cylindrical member (21c). An annular inward convex portion (32) and an annular outward convex portion (33) are formed at the front end portion of the male screw member (3). The annular inward convex portion (32) is disposed in the gap between the rear end surface of the first tubular member (21b) and the annular step (218) of the second tubular member (21c). The member (3) cannot be moved back and forth with respect to the water inlet (21). The rear end surface of the annular outer convex portion (33) is brought into contact with or close to the front surface of the flange portion (P12) of the pipe joint (P). A serration (31) is formed on the peripheral surface of the annular outer convex portion (33), and this serration constitutes the engaging portion (31) of the male screw member (3). A space between the inner peripheral surface of the male screw member (3) and the outer peripheral surface of the second cylindrical member (21c) is sealed by an annular packing (6) such as an O-ring.

  As shown in FIG. 1, the lock member (4) is formed of an annular body that also serves as a decorative cover that can cover the vicinity of the hole (W1) of the wall surface (W). The front surface of the lock member (4) is a truncated cone-shaped tapered surface. A plurality of anti-slip annular ridges (42) are formed on the outer peripheral surface of the lock member (4). On the inner peripheral surface of the locking member (4), a rearward first annular step (43) that abuts against the annular outer convex portion (33) of the male screw member (3) is formed on the rear end side. A front-facing second annular step (43) is formed on the front end side, facing the rear end surface of the horizontal cylindrical portion (2a) at a predetermined distance.

  And the serration (41) is formed in the back part rather than the 1st cyclic | annular level | step difference (43) in the internal peripheral surface of a locking member (4). The serration (41) is formed so as to mesh with the serration (31) of the male screw member (3), and constitutes an engaging portion (41) of the lock member (4).

  Further, the serration that meshes with the serration (215) of the first tubular member (21b) in a portion between the first annular step (43) and the second annular step (44) on the inner peripheral surface of the lock member (4). (45) is formed. By engaging these serrations (215) and (45), the lock member (4) can be moved back and forth with respect to the water inlet port (21) and cannot rotate (see FIGS. 1, 2, and 4). .

  Between the rear end surface of the horizontal tubular portion (21a) and the second annular step (44) of the lock member (4), a spring (for biasing the lock member (4) toward the male screw member (3)) 5) is interposed. The spring (5) constitutes a holding means (5) for holding the lock member (4) at the rearward movement end.

  FIG. 7 shows a modification of the external shape of the lock member. The locking member (4A) of FIG. 7 is connected to the horizontal cylindrical portion (401) and the rear end portion of the horizontal cylindrical portion (401) and extends radially outward and near the hole (W1) of the wall surface (W). And an annular flange portion (402) covering the surface. The front surface of the flange portion (402) is a gently tapered surface.

If the lock member (4) is movable back and forth with respect to the water inlet port (21) and cannot rotate, the lock member (4) is connected to the water inlet port (21) by means other than the means shown in FIGS. It may be combined.
That is, for example, as shown in FIG. 8, the first annular step (43) and the second annular step (44) on the outer peripheral surface rear portion of the first tubular member (21b) and the inner peripheral surface of the lock member (4). Instead of serrations (215) and (45), hexagonal cross sections or other polygonal fitting portions (215A) and (45A) that can be fitted to each other may be formed.
Moreover, as shown in FIG. 9, the outer peripheral surface rear part of the first cylindrical member (21b) and the first annular step (43) and the second annular step (44) on the inner peripheral surface of the lock member (4). You may form the fitting part (215B) (45B) of a cross-sectional lacking circle | round | yen mutually fitted by the part between them.

Next, an example of a procedure for attaching the single water faucet (1A) to the wall surface (W) will be described.
First, a seal tape (not shown) is wound around the male screw member (3). Here, the lock member (4) needs to be held at the rear moving end, that is, the lock position so that the male screw member (3) and the faucet body (2) do not rotate relative to each other. In the embodiment, since the spring (5) is used as the holding means, the lock member (4) is automatically held in the locked position by the elastic force of the spring (5).
Then, hold the faucet body (2) by hand and screw the male screw member (3) into the female screw portion (P1) at the front end of the water supply pipe.
When the male screw member (3) is screwed into the female screw portion (P1) by a necessary amount of rotation, the orientation of the faucet body (2) in the rotational direction is confirmed. When the handle (27) attached to the faucet body (2) is not directly above, the lock member (4) is pulled to the front. Then, the lock member (4) moves against the elastic force of the spring (5) to the forward movement end, that is, to the unlocked position, and the male screw member (3) and the serration (31) (31) of the lock member (4) 41) Since the engagement between the two is released and the faucet body (2) can rotate relative to the male screw member (3), the handle (27) is directly above the faucet body (2). Rotate to position.
Next, when the hand is released from the lock member (4), the lock member (4) automatically returns to the rearward movement end by the elastic force of the spring (5), and the lock member (4) and the male screw member (3). The serrations (41) and (31) are engaged with each other so that the male screw member (3) and the faucet body (2) do not rotate relative to each other, and the state is maintained by the spring (5).
As described above, in the single faucet (1A) of this embodiment, it is possible to adjust the direction of the faucet body (2) in the rotational direction very easily. Therefore, according to said single water tap (1A), even if it is a construction beginner, it can attach to a wall surface (W) simply and reliably, without wasting a sealing tape or worrying about water leakage.

(Second Embodiment)
10 to 13 show a second embodiment of the present invention. The single water tap (1B) of this embodiment is substantially the same as the single water tap (1A) of the first embodiment shown in FIGS. 1 to 9 except for the following points.
That is, in the single water faucet (1B) of FIG. 10 to FIG. 13, the annular outer convex portion is not formed at the front end portion of the male screw member (3), and the first cylindrical member is formed in the same portion. A serration (31) that matches the serration (215) of (21b) is formed.
The lock member (4) does not have a first annular step on its inner peripheral surface, and a serration (46) is formed in the rear portion of the second annular step (43) on the inner peripheral surface. This serration (46) is obtained when the lock member (4) is at the rearward movement end, that is, in the lock position, the serration (31) of the male screw member (3) and the serration (215) of the water introduction port (21). On the other hand, when the lock member (4) is in the forward movement end, that is, in the unlocked position, it engages only with the serration (215) of the water inlet (21). That is, in this embodiment, the serration (46) of the locking member (4) is shared by the engagement with the two members (3) (21).
Therefore, according to the single water faucet (1B) of this embodiment, since the structure of the lock member (4) is simplified, the cost can be reduced.
Further, the first tubular member (21b) has an annular outer convex portion (219) at a rear portion of the annular step (217) on the outer peripheral surface thereof, and the annular outer convex portion (219) and a lock A spring (5) is interposed between the second annular step (44) of the member (4).

(Third embodiment)
14 to 16 show a third embodiment of the present invention. The single water tap (1C) of this embodiment is substantially the same as the single water tap (1A) of the first embodiment shown in FIGS. 1 to 9 except for the following points.
That is, in the single water faucet (1C) of FIGS. 14-16, it replaces with the cyclic | annular outward convex part which protruded in the radial direction short at the front-end part of the external thread member (3A), and is using a wall surface (W ), A decorative flange portion (34) projecting long outward in the radial direction is formed so as to cover the hole (W1). An annular front convex portion (35) is formed on the front surface of the decorative flange portion (34), and a serration (31) is formed on the inner peripheral surface of the convex portion (35).
The lock member (4B) has a substantially horizontal cylindrical shape, and a serration (41) that meshes with the serration (31) of the male screw member (3A) is formed at the rear portion of the outer peripheral surface thereof.
A forward annular step (44) facing the rear end surface of the horizontal cylindrical portion (21a) at a predetermined distance is formed near the rear end of the inner peripheral surface of the lock member (4B). Further, a serration (45) that meshes with the serration (215) of the water introduction port (21) is formed at the rear portion of the annular step (44) on the inner peripheral surface of the lock member (4B).

(Fourth embodiment)
17 to 21 show a fourth embodiment of the present invention. The single faucet (1D) of this embodiment is substantially the same as the single faucet (1A) of the first embodiment shown in FIGS. 1 to 9 except for the following points.
That is, in the single water faucet (1D) of FIGS. 17 to 21, the lock member (4C) is made of a slightly thin annular body. On the inner peripheral surface of the lock member (4C), a backward-facing annular step (43) that abuts against the annular outward projection (33) of the male screw member (3) is formed at the center of the thickness. A serration (41) that meshes with the serration (31) of the male screw member (3) is formed at the rear portion of the annular step (43) on the inner peripheral surface of the lock member (4C). A serration (45) that meshes with the serration (215) of one cylindrical member (21b) is formed.
A male screw part (220) is formed in a front part of the outer peripheral surface of the first cylindrical member (21b) with respect to the serration (45). A nut (female screw member) (7) for tightening the lock member (4C) toward the male screw member (3) is screwed into the male screw portion (220).

In the single water faucet (1D) of this embodiment, during the screwing operation into the female threaded portion (P1) at the front end of the water supply pipe, the lock member (4C) is tightened with the nut (7) to thereby move the lock member (4C) to the rear moving end, That is, the relative rotation between the water introduction port (21) and the male screw member (3) can be prevented by holding the lock position. On the other hand, when it is desired to adjust the direction of the faucet body (21) during the mounting operation, the nut (7) is loosened forward (see FIG. 18), and then the lock member (4C) is moved forward. What is necessary is just to move to an end, ie, a lock release position (refer FIG. 19). When the adjustment of the orientation of the faucet body (21) is completed, the lock member (4C) is returned to the rearward movement end, and then the member (4C) is tightened again with the nut (7).
According to the single water faucet (1D) of this embodiment, as described above, the nut (7) is used as the holding means for the lock member (4C), so that the lock member (4C) can be locked more securely and firmly. Can be held in place.

(Fifth embodiment)
22 to 25 show a fifth embodiment of the present invention.
The single faucet (1E) of this embodiment is connected to a faucet body (2) having a water inlet port (21) opened at the rear end, and to the water inlet port (21) so as to be rotatable around its axis. And a cylindrical male screw member (3B) screwed into the female screw portion (P1) at the front end of the water supply pipe exposed from the hole (W1) of the wall surface (W).
The water inlet (21) is movable back and forth with respect to the male screw member (3B).
The male screw member (3B) and the water introduction port portion (21) are engaged with each other at a plurality of relative rotational positions when the water introduction port portion (21) comes to the front moving end, and both (3B) (21 ), While the water inlet port (21) comes to the rearward movement end, the engagement portion (31) can be disengaged to allow the relative rotation of both (3B) (21). ) (210).
Furthermore, the single water faucet (1E) includes holding means (8) for holding the water introduction port (21) at the front moving end.

  The male screw member (3B) has a substantially horizontal cylindrical shape, and a male screw portion (30) is formed at the rear portion of the outer peripheral surface. A serration (31) is formed at the front end portion of the outer peripheral surface of the male screw member (3B). This serration (31) constitutes the engaging portion (31) of the male screw member (3B). An annular inward convex portion (32) is formed at a portion near the front end of the inner peripheral surface of the male screw member (3B).

The water inlet part (21) is formed at the rear end of the faucet body (2) and has a horizontal cylindrical part (21a) having a female thread part (211) on the inner peripheral surface, and a horizontal cylinder on the front part of the outer peripheral surface. It is comprised with the cylindrical member (21b) which has the external thread part (212) screwed in a shape part (21a).
Near the rear end of the inner peripheral surface of the horizontal cylindrical portion (21a), a rearward annular step (221) facing the annular inner convex portion (32) of the male screw member (3B) at a predetermined distance is formed. Yes. The female thread portion (211) is formed at the front portion of the annular step (211) on the inner peripheral surface of the horizontal cylindrical portion (21a). A serration (210) that meshes with the serration (31) of the male screw member (3B) is formed at the rear end portion of the inner peripheral surface of the horizontal cylindrical portion (21a), and this serration (210) is a water introduction port portion. This constitutes the engaging portion (210) of (21). An annular inward convex portion (222) having an opening diameter substantially equal to the inner diameter of the male screw member (3B) is formed on the front side portion of the female screw portion (211) on the inner peripheral surface of the horizontal cylindrical portion (21a). ing.
An annular step (218) facing forward is formed in the middle part of the length of the outer peripheral surface of the cylindrical member (21b), and this annular step (218) is formed on the inner side of the male screw member (3B). It can be engaged with the convex part (32). A space between the outer peripheral surface of the cylindrical member (21b) and the inner peripheral surface of the male screw member (3B) is sealed by an annular packing (6) such as an O-ring.
The horizontal cylindrical portion (21a) and the cylindrical member (21b) are completely water-stopped by bonding these screw portions (211) (212).

  Between the annular inward convex portion (32) of the male screw member (3B) and the annular step (221) of the horizontal cylindrical portion (21a) in the water introduction port portion (21), the water introduction port portion (21). A spring (5A) that urges the head toward the front is interposed. As the spring (5A), when the faucet body (2) is held by hand and the male screw member (3B) is screwed into the female thread portion (P1) at the front end of the water supply pipe, the faucet body (2) is moved backward. It is preferable to use a material having a somewhat high tension so as not to move.

The holding means (8) is screwed into a male screw part (223) formed in the horizontal cylindrical part (21a) of the water introduction port part (21), and the rear end is in contact with the wall surface (W) to introduce water. It consists of a female screw member (8) that prevents the rearward movement of the mouth portion (21).
The female screw member (8) has a horizontal cylindrical female screw portion (81) and a makeup extending radially outward from the rear end of the female screw portion (81) to cover the hole (W1) of the wall surface (W). A flange portion (82) and an annular leg portion (83) extending rearward from the outer peripheral edge of the decorative flange portion (82) and having a tip contacting the wall surface (W) are provided.

Said single water tap (1E) is attached to a wall surface (W) as follows, for example.
That is, first, a sealing tape (not shown) is wound around the male screw member (3B), and then the faucet body (2) is held by hand, and the male screw member (3B) is connected to the female screw portion at the front end of the water supply pipe. Screw into (P1).
When the male screw member (3B) is screwed into the female screw portion (P1) by a necessary amount of rotation, the orientation of the faucet body (2) in the rotational direction is confirmed. When the handle (27) (see FIG. 1) attached to the faucet body (2) is not directly above, the female screw member (holding means) (8) is unscrewed forward ( 23), the faucet body (2) is strongly pushed backward against the elastic force of the spring (5A). Then, the water introduction port part (21) of the faucet body (2) moves to the rearward movement end, that is, the unlocking position, and the male screw member (3B) and the serration (31) ( 210) Since the engagement is released and the faucet body (2) can rotate with respect to the male screw member (3B), the handle (27) is directly above the faucet body (2). Rotate to the position at (see FIG. 24).
Next, when the hand is released from the faucet body (2), the water introduction port portion (21) is automatically returned to the forward moving end, that is, the lock position by the elastic force of the spring (5A). The serration (210) of (21) is engaged with the serration (31) of the male screw member (3B) so that the male screw member (3B) and the faucet body (21) do not rotate relative to each other.
Thereafter, when the female screw member (8) is screwed back so that the tip of the annular leg (82) is in contact with the wall surface (W), the faucet body (2) is moved to the rear moving end. The movement is blocked and held in the locked position (see FIG. 22).
Therefore, according to the single faucet (1E) of this embodiment, it is possible to adjust the direction of the rotation direction of the faucet body (2) very easily. It can be easily and reliably attached to the wall surface (W) without worrying about water leakage.

(Sixth embodiment)
26 to 29 show a sixth embodiment of the present invention.
The single faucet (1F) of this embodiment is connected to a faucet body (2) having a water introduction port (21) opened at the rear end, and to the water introduction port (21) so as to be rotatable around its axis. And a cylindrical male screw member (3C) screwed into the female screw portion (P1) at the front end of the water supply pipe exposed from the hole (W1) of the wall surface (W).
The water inlet (21) is movable back and forth with respect to the male screw member (3C).
The male screw member (3C) and the water introduction port portion (21) are engaged with each other at a plurality of relative rotational positions when the water introduction port portion (21) comes to the rearward movement end, and both (3C) (21 ), While the water inlet port (21) comes to the front moving end, the engagement portion (31) can be disengaged to allow relative rotation of both (3C) (21). ) (210).
Furthermore, the single water faucet (1F) includes holding means (5B) (9) for holding the water introduction port (21) at the forward moving end.

  The male screw member (3C) has a substantially horizontal cylindrical shape, and a male screw portion (30) is formed at the rear portion of the outer peripheral surface. An annular outer convex portion (33) is formed on the front portion of the male screw portion (30) on the outer peripheral surface of the male screw member (3B), and a serration (31) is formed on the peripheral surface of the annular outer convex portion (33). Has been. This serration (31) constitutes the engaging portion (31) of the male screw member (3C). An annular groove (36) is formed at the front end portion of the outer peripheral surface of the male screw member (3C). A rearward-facing annular step (37) is formed on the inner peripheral surface of the male screw member (3C) near the front end.

The water inlet part (21) is formed at the rear end of the faucet body (2) and has a horizontal cylindrical part (21a) having a female thread part (211) at the front part of the inner peripheral surface, and an outer peripheral surface front part. And a cylindrical member (21b) having a male screw part (212) screwed into the horizontal cylindrical part (21a).
A rearward first annular step (221) that can receive the front end surface of the male screw member (3C) is formed in the middle portion of the inner peripheral surface of the horizontal cylindrical portion (21a). Further, a rearward second annular step (224) that can receive the annular outer convex portion (33) of the male screw member (3C) is formed in the portion near the rear end of the inner peripheral surface of the horizontal cylindrical portion (21a). Has been. The female thread portion (211) is formed in the front portion of the first annular step (211) on the inner peripheral surface of the horizontal cylindrical portion (21a). A serration (210) that meshes with the serration (31) of the male screw member (3C) is formed in the rear portion of the second annular step (224) on the inner peripheral surface of the horizontal cylindrical portion (21a). (210) constitutes the engaging part (210) of the water inlet part (21). An annular inward convex portion (222) having an opening diameter substantially equal to the inner diameter of the male screw member (3B) is formed on the front side portion of the female screw portion (211) on the inner peripheral surface of the horizontal cylindrical portion (21a). ing. At the rear end portion of the outer peripheral surface of the horizontal cylindrical portion (21a), an outward annular decorative flange portion (225) that covers the vicinity of the hole (W1) of the wall surface (W) is formed. The front surface of the decorative flange portion (225) is a gently tapered surface. A screw hole (226) that opens toward the annular groove (36) of the male screw member (3C) when opened at the rearward movement end is formed in the lower portion of the horizontal cylindrical portion (21a).
A forward annular step (218) facing the annular step (37) on the inner peripheral surface of the male screw member (3C) at a predetermined distance is formed in the middle portion of the outer peripheral surface of the cylindrical member (21b). Yes. A space between the outer peripheral surface of the cylindrical member (21b) and the inner peripheral surface of the male screw member (3C) is sealed by an annular packing (6) such as an O-ring.
The horizontal cylindrical portion (21a) and the cylindrical member (21b) are completely water-stopped by bonding these screw portions (211) (212).

Between the annular step (37) on the inner peripheral surface of the male screw member (3C) and the annular step (218) on the outer peripheral surface of the tubular member (21a), the water inlet (21) is urged rearward. A spring (5B) is interposed.
Further, the single water faucet (1F) of this embodiment is screwed into the screw hole (226) of the horizontal cylindrical portion (21a) when the water introduction port portion (21) is at the rear moving end, and the tip thereof is A set screw (9) applied to the bottom surface of the annular groove (36) is provided.
These springs (5B) and set screws (9) constitute holding means for holding the water introduction port (21) at the rearward movement end.
Note that the holding means can be configured by only one of the spring (5B) and the set screw (9).

Said single water tap (1F) is attached to a wall surface (W) as follows, for example.
That is, first, a seal tape (not shown) is wound around the male screw member (3C). Here, the water inlet (21) of the faucet body (2) needs to be held at the rear moving end, that is, in the locked position so as not to rotate with respect to the male screw member (3). In this embodiment, since the spring (5B) is used as the holding means, the water inlet (21) is automatically held in the locked position by the elastic force of the spring (5). Moreover, in order to hold | maintain a locked state more reliably, it is preferable to screw the set screw (9) in the screw hole (226) of the horizontal cylindrical part (21a) in a water inlet part (21).
Then, hold the faucet body (2) by hand and screw the male screw member (3C) into the female screw portion (P1) at the front end of the water supply pipe (see FIG. 26).
When the male screw member (3C) is screwed into the female screw portion (P1) by a necessary amount of rotation, the orientation of the faucet body (2) in the rotational direction is confirmed. If the handle (27) (see FIG. 1) attached to the faucet body (2) is not directly above, the setscrew (9) is loosened, and then the faucet body (2) is moved to the spring. Pulling forward against the elastic force of (5A). Then, the water introduction port part (21) of the faucet body (2) moves to the forward movement end, that is, the unlocking position, and the male screw member (3C) and the serrations (31) of the water introduction port part (21) ( 210) Since the engagement between the two is released and the faucet body (2) can rotate with respect to the male screw member (3C), the faucet body (2) is placed with the handle (27) directly above in this state. Rotate to the next position (see FIG. 27).
Next, when the hand is released from the faucet body (2), the water introduction port portion (21) is automatically returned to the rearward movement end, that is, the lock position by the elastic force of the spring (5B). The serration (210) of (21) is engaged with the serration (31) of the male screw member (3C) so that the male screw member (3C) and the faucet body (21) do not rotate relative to each other, and the spring (5 ) Holds the state.
Further, in order to securely hold the water introduction port (21) at the rearward moving end, the set screw (9) is screwed in until the tip reaches the bottom surface of the annular groove (36) (see FIG. 26).
As described above, according to the single faucet (1F) of this embodiment, the direction of the rotation direction of the faucet body (2) can be adjusted very easily. The tape can be attached to the wall surface (W) easily and reliably without wasting the tape or worrying about water leakage.

  It should be noted that each of the above embodiments is merely an example, and it is of course possible to implement the present invention with appropriate modifications without departing from the scope of the present invention described in the claims. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a first embodiment of the present invention, and is a vertical longitudinal sectional view of a single water faucet with a lock member in a locked position. In 1st Embodiment, it is the partial expansion vertical longitudinal cross-sectional view of the single water tap in the state which has a lock member in a lock release position. It is a cross-sectional view of the single water faucet along the III-III line of FIG. It is a cross-sectional view of a single water faucet along line IV-IV in FIG. It is the vertical longitudinal cross-sectional view which decomposes | disassembles and shows a part of single water tap. It is a partial expanded vertical sectional view which shows the modification of the water introduction port part of a single water tap. It is a vertical longitudinal cross-sectional view which shows the modification of a locking member. It is a cross-sectional view which shows the modification of the attachment structure to the water inlet part of a locking member. It is a cross-sectional view showing another modification of the structure for attaching the lock member to the water introduction port. FIG. 5 is a partially enlarged vertical vertical sectional view of a single water faucet showing a second embodiment of the present invention, in a state where a lock member is in a lock position. In 2nd Embodiment, it is the partial expansion vertical longitudinal cross-sectional view of the single water tap in the state which has a lock member in a lock release position. It is a cross-sectional view of the single water faucet along the XII-XII line of FIG. It is a cross-sectional view of a single water faucet along the XIII-XIII line of FIG. FIG. 9 is a partially enlarged vertical vertical sectional view of a single water faucet showing a third embodiment of the present invention in a state where a lock member is in a lock position. In 3rd Embodiment, it is the partial expansion vertical longitudinal cross-sectional view of the single water tap in the state which has a lock member in a lock release position. It is a cross-sectional view of the single water faucet along the XVI-XVI line of FIG. FIG. 9 shows a fourth embodiment of the present invention, and is a partially enlarged vertical vertical sectional view of a single water faucet with a lock member in a locked position. In 4th Embodiment, it is the partial expansion vertical longitudinal cross-sectional view of the single water tap of the state which loosened the lock nut. In 4th Embodiment, it is a partial expansion vertical longitudinal cross-sectional view of the single water tap in the state which has a locking member in a lock release position. It is a cross-sectional view of a single water faucet along the line XX-XX in FIG. It is a cross-sectional view of the single water faucet along the XXI-XXI line of FIG. FIG. 9 shows a fifth embodiment of the present invention, and is a partially enlarged vertical vertical sectional view of a single water faucet in a state where a water introduction port portion of a water faucet body is in a locked position. In 5th Embodiment, it is the partial expansion vertical longitudinal cross-sectional view of the single water tap of the state which loosened the internal thread member. In 5th Embodiment, it is the partial expansion vertical longitudinal cross-sectional view of the single water tap in the state which has a water inlet opening part in a lock release position. It is a cross-sectional view of the single water faucet along the XXV-XXV line of FIG. The 6th Embodiment of this invention is shown, Comprising: It is the partial expansion vertical longitudinal cross-sectional view of the single water tap of the state which has a water inlet opening part in a locked position. In 6th Embodiment, it is the partial expansion vertical longitudinal cross-sectional view of a single water tap in the state which has a water inlet opening part in a lock release position. It is a cross-sectional view of a single water faucet along the line XXVIII-XXVIII in FIG. It is a cross-sectional view of a single water faucet along the line XXIX-XXIX in FIG.

Explanation of symbols

(W): Wall surface (faucet mounting surface)
(W1): Hole (P1): Female thread part (1A) (1B) (1C) (1D) (1E) (1F): Single faucet (2): Faucet body (21): Water Inlet port (210): Serration (engagement portion)
(3) (3A) (3B) (3C): Male screw member (31): Serration (engagement portion)
(4) (4A) (4B) (4C): Lock member (41) (46) Serration (engaging part)
(5) (5B): Spring (holding means)
(5A): Spring (7): Nut (female screw member / holding means)
(8): Female screw member (holding means)
(9): Set screw (holding means)

Claims (10)

A faucet body having a water inlet opening opened at the rear end, and a female screw at the front end of the water supply pipe that is connected to the water inlet opening portion so as to be rotatable around its axis and not movable forward and backward and exposed from a hole in the faucet mounting surface A cylindrical male screw member that is screwed into the part, and an annular lock member that is combined with the front part of the male screw member around the water introduction port portion so as to be movable back and forth.
The male screw member and the lock member can be engaged with each other at a plurality of relative rotation positions when the lock member comes to the rearward movement end to prevent relative rotation of both, while the lock member comes to the front movement end. An engagement part that is sometimes disengaged to allow relative rotation of both is formed,
The single water faucet further comprising holding means for holding the lock member at the rear moving end.   The single water faucet according to claim 1, wherein the engaging portion of the male screw member and the lock member is constituted by serrations that mesh with each other.   The single water faucet according to claim 1 or 2, wherein the holding means comprises a spring that biases the lock member toward the male screw member. The single water according to claim 1 or 2, wherein the holding means comprises a female screw member that is screwed into a male screw portion formed in the water introduction port portion and tightens the lock member toward the male screw member. plug. A serration that meshes with each other is formed on the surface of the faucet body that faces the water introduction port and the lock member. By engaging these serrations, the lock member can be moved back and forth with respect to the water introduction port. The single water faucet according to any one of claims 1 to 4, wherein the single water faucet is provided. A fitting portion having a polygonal cross section or a cross-sectional circle shape that can be fitted to each other is formed on the opposing surface of the water introduction port portion of the faucet body and the lock member. The single water faucet according to any one of claims 1 to 4, wherein the member is movable back and forth with respect to the water introduction port. The single water faucet according to any one of claims 1 to 6, wherein the lock member is formed of an annular body that also serves as a decorative cover that can cover the vicinity of the hole of the faucet mounting surface. A faucet body having a water inlet opening opened at the rear end, and screwed into a female thread at the front end of the water supply pipe that is rotatably connected to the water inlet opening around its axis and exposed from the hole on the faucet mounting surface A cylindrical male screw member,
The water inlet is movable back and forth with respect to the male screw member.
The male screw member and the water introduction port portion can be engaged with each other at a plurality of relative rotation positions when the water introduction port portion reaches the forward moving end to prevent the relative rotation of the two, while the water introduction port portion An engagement portion is formed that disengages when it comes to the rearward movement end and allows relative rotation of both.
Furthermore, it has a holding means for holding the water introduction port portion at the front moving end,
The holding means is made of a female screw member that is screwed into a male screw portion formed in the water introduction port portion and prevents the water introduction port portion from moving backward by contacting the faucet mounting surface at the rear end. Features a single faucet. The engagement portion of the water inlet portion and a male screw member, characterized in that it is constituted by a serration meshing with each other, a single water faucet according to claim 8. The single water faucet according to claim 8 or 9 , wherein a spring for urging the water introduction port portion forward is provided.

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