JP2005201343A - Combination faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combination faucet using grease for sustaining its effects for a long period. <P>SOLUTION: The combination faucet comprises a rod member 3 and an almost cylindrical holding member 12 for holding it turnably and slidably in the axial direction. A connection part 9 is axially slid along a guide part 8a provided on the outer peripheral face of a faucet rod 8 and turned in association with the faucet rod 8. A male screw 10 is provided on the outer peripheral face thereof, while a female screw 11 to be threaded to the male screw 10 is provided on the holding member 12. With the turn of the faucet rod 8, the rod member 3 is axially moved so that valve elements 1, 2 provided on the outer periphery of the rod member 3 are moved close to or apart from a shower valve seat 5 and a faucet valve seat 6, respectively. A through-hole 15 is formed ranging from the inner wall face to the outer wall face of the connection part 9. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to, for example, a hot and cold water mixing faucet provided with a switching unit for switching between water discharge by shower and water discharge by currant and adjusting the flow rate of the discharge amount.

  For example, as shown in FIG. 2, a conventional hot and cold water mixing faucet installed in a bathroom is provided with a switching unit for switching between water discharge by a shower and water discharge by a currant and adjusting the discharge flow rate. . That is, in FIG. 2, 51 is a first valve body, 52 is a second valve body, which are slidable along the rod member 53, and are urged away from each other by a spring 54. .

  Further, a shower valve seat 55 and a currant valve seat 56 are provided so as to sandwich these two valve bodies 51 and 52. Then, by moving the rod member 53 in the axial direction (left and right in the figure), the first and second valve bodies 51 abut the shower valve seat 55 and the second valve body 52 is the currant valve seat. A water stop state in which the first valve body 51 is separated from the shower valve seat 55, a shower water discharge state in which the second valve body 52 is in contact with the currant valve seat 56, and a first valve body 51 in the shower valve seat. The second valve body 52 is switched to a currant water discharge state in which the second valve body 52 is separated from the curan valve seat 56. That is, the mixed water sent from the upstream side into the chamber 57 accommodating the two valve bodies 51 and 52 remains in the chamber 57 as it is in the water stop state, and the first valve body 51 in the shower water discharge state. After flowing through the shower valve seat 55, the shower water is discharged. In the Karan water discharge state, the shower water is discharged after flowing between the second valve body 52 and the Karan valve seat 56.

  58 is a stopper rod that rotates about its axis in accordance with a rotation operation of a switching handle (not shown). A regular hexagonal column-shaped guide portion 58a is formed at the distal end portion (left end portion in the figure) of the stopper rod 58. Has been. In addition, a guide portion 58a is fitted inside the right end portion of the rod member 53 in the drawing, and a cylindrical connection in which the longitudinal section of the inner peripheral surface is a regular hexagonal shape so as to match the shape of the guide portion 58a. A portion 59 is provided, and an external thread 60 is formed on the outer peripheral surface of the connecting portion 59. The connecting portion 59 is slidable in the axial direction along the guide portion 58a of the plug bar 58. Reference numeral 61 denotes a female screw that is screwed into the male screw 60.

  In the hot and cold water mixing faucet configured as described above, when the switching handle is rotated, the plug rod 58 rotates about its axis, and the rod member 53 having the connecting portion 59 rotates together. At the same time, since the male screw 60 of the connecting portion 59 meshes with the female screw 61, the rod member 53 moves in the axial direction. Then, by moving the rod member 53 in the axial direction in this way, as described above, the hot and cold water mixing faucet is switched to the water stop state, the shower water discharge state, and the currant water discharge state, and the discharge flow rate is adjusted. Will be.

  However, in the above-described conventional hot and cold water mixing faucet, grease is applied to the inside of the guide portion 58a and the connecting portion 59 of the plug bar 58 and the male screw 60 and the female screw 61 of the connecting portion 59 in order to improve lubricity. However, when the connecting portion 59 is slid, the grease loses its place with the air, and there is a problem that a portion where lubrication is insufficient is formed.

  The present invention has been made in consideration of the above-mentioned matters, and an object of the present invention is to provide a hot and cold water mixing faucet that can maintain the effect for a long time when using grease to enhance the lubricity of the components of the switching unit. It is to be.

  In order to achieve the above object, the hot and cold water mixing faucet of the present invention has a switching unit for switching between water discharge by a shower and water discharge by a currant and adjusting the discharge flow rate. A plug bar that rotates about the axis in accordance with the operation of the handle, a rod member that is provided with one end of a cylindrical connecting part that is connected to the plug bar, and a rod member that rotatably holds the plug bar. And a substantially cylindrical holding member that holds the member so as to be rotatable and slidable in the axial direction thereof, and the connecting portion slides in the axial direction along a guide portion provided on an outer peripheral surface of the plug bar. In addition, the external thread is provided on the outer peripheral surface of the holding member, and the holding member is provided with a female screw that engages with the male screw. Move to the outside of this rod member A water-mixing faucet configured such that the valve body provided in the valve is close to and away from the shower valve seat and the currant valve seat, and a through hole is formed from the inner wall surface to the outer wall surface of the connecting portion. (Claim 1).

  In the invention according to claim 1, grease applied to the slide portion constituted by the outer wall of the guide portion of the plug bar and the inner wall of the connecting portion, and the screw portion constituted by the male screw of the connecting portion and the female screw of the holding member, respectively. Can be passed through a through hole provided in the connecting portion. That is, the grease and air in the slide portion can be moved to the screw portion via the through hole, and the grease and air in the screw portion can be moved to the slide portion via the through hole. Therefore, in the conventional hot and cold water mixing faucet, there is a problem that the grease loses its place with the air when the connecting portion slides, and a portion where lubrication is insufficient is formed. Can be reliably prevented, and the lubricating action exhibited by the grease can be maintained for a long period of time.

Hereinafter, the details of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view schematically showing a configuration of a main part of a hot and cold water mixing faucet according to one embodiment of the present invention.
As shown in FIG. 1, the hot water / water mixing faucet of this embodiment is provided in the mixing portion, as shown in FIG. There is a switching unit for switching the formed mixed water (including only hot water and water only) to a state in which water is discharged by a shower or a state in which water is discharged by a currant and adjusting the discharge flow rate.

  That is, in FIG. 1, reference numeral 1 denotes a first valve body, and 2 denotes a second valve body, which are slidable along the rod member 3, and are urged away from each other by a spring 4. . In this example, the first valve body 1 is urged to the left in the figure by the spring 4, and the second valve body 2 is urged to the right in the figure.

  A shower valve seat 5 and a currant valve seat 6 are provided so as to sandwich the two valve bodies 1 and 2. Then, by moving the rod member 3 in the axial direction (left-right direction in the figure), the first and second valve bodies 1 abut the shower valve seat 5 and the second valve body 2 is the Karan valve seat. 6, a water stop state where the first valve body 1 is separated from the shower valve seat 5, a shower water discharge state where the second valve body 2 is in contact with the Karan valve seat 6, and a first valve body 1 is the shower valve seat. 5, the second valve body 2 is switched to the Karan water discharge state where the second valve body 2 is separated from the Karan valve seat 6. That is, the mixed water sent from the upstream side into the chamber 7 that accommodates the two valve bodies 1 and 2 stays in the chamber 7 as it is in the water stop state, and the first valve body 1 in the shower water discharge state. After flowing through the shower valve seat 5, the shower water is discharged. In the Karan water discharge state, the shower water is discharged after flowing between the second valve body 2 and the Karan valve seat 6.

  8 is a stopper rod that rotates about its axis in accordance with the rotation operation of the switching handle (not shown). A regular hexagonal column-shaped guide portion 8a is formed at the distal end portion (left end portion in the figure) of the stopper rod 8. Has been. In addition, a guide portion 8a is fitted in the right end portion of the rod member 3 in the drawing, and a cylindrical connection in which the longitudinal section of the inner peripheral surface is a regular hexagonal shape so as to match the shape of the guide portion 8a. A portion 9 is provided, and a male screw 10 is formed on the outer peripheral surface of the connecting portion 9. The connecting portion 9 is slidable in the axial direction along the guide portion 8 a of the plug rod 8. Reference numeral 11 denotes a female screw that is screwed into the male screw 10.

  Reference numeral 12 denotes a substantially cylindrical holding member that rotatably holds the plug bar 8 and holds the rod member 3 rotatably and slidably in the axial direction thereof. More specifically, a bearing portion 13 that holds the rod member 3 so as to be rotatable and slidable is provided at a substantially central portion of the holding member 12, and the connecting portion 9 is accommodated on the right side of the bearing portion 13 in the figure. A housing portion 14 is provided. The female screw 11 is formed on the inner wall of the accommodating portion 14. Further, the Karan valve seat 6 is formed at the left end of the holding member 12 in the drawing.

  The configuration up to here is no different from a conventional hot and cold water mixing tap. The hot and cold water faucet of this embodiment is characterized in that a through hole 15 is formed from the inner wall surface to the outer wall surface of the connecting portion 9. Here, the number of through holes 15 may be one or plural. Further, the position of the through hole 15 that leads to the outer wall surface of the connecting portion 9 is preferably a groove portion of the male screw portion 10.

  In the hot and cold water mixing faucet having the above-described configuration, when the switching handle is rotated, the plug bar 8 rotates about its axis, and the rod member 3 having the connecting portion 9 rotates together. At the same time, since the male screw 10 of the connecting portion 9 meshes with the female screw 11, the rod member 3 moves in the axial direction along the guide portion 8a, so that the first valve body 1 and the second valve body 2 are connected to the shower valve seat. 5 and the Karan valve seat 6 are close to and away from each other.

  Specifically, when the rod member 3 is moved in the right direction in the figure, the second valve body 2 comes into contact with the curran valve seat 6 as shown in FIG. The first valve body 1 is biased to the right side by the first stopper member 16 fixed at a position on the left side of the valve body 1 in the drawing, and the first valve body 1 is separated from the shower valve seat 5. That is, at this time, the hot and cold water mixing faucet is in the shower water discharge state. The discharge flow rate by the shower is determined according to the opening degree of the first valve element 1 with respect to the shower valve seat 5. Further, the rod member 3 can be moved in the right direction until the connecting portion 9 comes into contact with the flange 17 provided on the plug rod 8.

  When the rod member 3 in the shower water discharge state is moved in the left direction in the figure, the second valve body 2 is kept in contact with the curran valve seat 6 and the first valve body 1 is moved to the shower valve seat. 5 is brought into a state of abutment. That is, at this time, the hot and cold water mixing faucet is in a water stop state.

  Further, when the rod member 3 in the water stop state is moved in the left direction in the figure, the first valve body 1 is kept in contact with the shower valve seat 5, and the second valve is arranged on the outer periphery of the rod member 3. The second valve body 2 is urged to the left side by the second stopper member 18 fixed at a position on the right side in the drawing relative to the body 2, and the second valve body 2 is separated from the currant valve seat 6. That is, at this time, the hot / cold water faucet is in a water discharge state. Note that the discharge flow rate by the currant is determined according to the opening degree of the second valve body 2 with respect to the currant valve seat 6. Further, the leftward movement of the rod member 3 can be performed until the connecting portion 9 comes into contact with the left end wall of the accommodating portion 14.

  Here, the slide portion S constituted by the outer wall of the guide portion 8a of the stopper rod 8 and the inner wall of the connecting portion 9, and the screw portion N constituted by the male screw 10 of the connecting portion 9 and the female screw of the holding member 12, respectively. Grease is applied. When the hot and cold water faucet is in the shower water discharge state, the guide portion 8a of the plug rod 8 enters the back side (left side in the figure) inside the connecting portion 9, but at this time, the grease and air in the slide portion S Passes through the through hole 15 provided in the connecting portion 9 and is guided into the screw portion N. When the hot and cold water faucet is in a water discharge state, the guide portion 8a is retracted from the inner side of the connecting portion 9 to the inlet side, and the connecting portion 9 enters the inner side of the housing portion 14 (the left side in the figure). However, at this time, the grease and air in the screw portion N pass through the through hole 15 provided in the connecting portion 9 and are guided to the space inside the connecting portion 9. Since the grease moves (circulates) as described above, the lubricating action by this grease is maintained for a long time.

  The present invention is not limited to the above-described embodiment, and can be implemented with various modifications. For example, in the above embodiment, the guide portion 8a has a regular hexagonal prism shape, and the longitudinal section of the inner peripheral surface of the connecting portion 9 has a regular hexagonal shape. However, the present invention is not limited to such a configuration. , 9 may be formed. In other words, any structure may be used as long as the connecting portion 9 rotates together with the guide portion 8a and can slide in the axial direction along the guide portion 8a.

It is explanatory drawing which shows schematically the structure of the principal part of the hot-water / water-mixing faucet concerning one Example of this invention. It is explanatory drawing which shows schematically the structure of the principal part of the conventional hot-water-mixing faucet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st valve body 2 2nd valve body 3 Rod member 5 Shower valve seat 6 Curran valve seat 8 Plug bar 8a Guide part 9 Connection part 10 Male screw 11 Female screw 12 Holding member 15 Through-hole

Claims (1)

  There is a switching unit for switching between water discharge by shower and water discharge by currant and adjusting the discharge flow rate, and this switching unit has a plug bar that rotates around the axis in accordance with the operation of the switching handle, and this plug A cylindrical connecting portion connected to the rod has a rod member provided at one end thereof, and the stopper rod is rotatably held, and the rod member is rotatably and slidably held in the axial direction thereof. A cylindrical holding member, and the connecting portion slides in an axial direction along a guide portion provided on the outer peripheral surface of the plug rod and rotates together with the plug rod, and an external thread is provided on the outer peripheral surface. On the other hand, a female screw that engages with the male screw is provided on the holding member, and the rod member moves in the axial direction by the rotation of the plug rod, and the valve body provided on the outer periphery of the rod member Close to valve seats and Karan valve seats A mixing valve which is arranged to spaced, mixing valve, characterized in that is formed with through holes toward the outer wall surface from the inner wall surface of the connecting portion.

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