JP4410592B2 - Water faucet - Google Patents

Description

  The present invention relates to a faucet such as a single faucet or a single lever type hot / cold water faucet.

  In the single faucet and the single lever type hot / cold water faucet, operation members such as a lever for adjusting the water discharge flow rate are conventionally screwed.

  However, the operation member is repeatedly operated, and there is a problem that the screw gradually loosens as the operation is repeated.

  The present invention has been made in consideration of the above-mentioned matters, and an object thereof is to provide a faucet that can be kept in a good state even when an operation member for adjusting the water discharge flow rate is repeatedly used. .

  In order to achieve the above object, a water faucet of the present invention is provided in a control member for controlling a valve body, an operation member for operating the control member, and a hole formed in an upper and lower direction on the control member. A faucet that is inserted from above and configured to sandwich an operation member between a head of the screw member and an upper end of the control member, and crosses the hole in the control member A taper hole narrowing toward one end side is provided, and a block inserted into the taper hole is provided, and a male screw portion of the screw member is screwed to the block. ).

  An elastic member that urges the block toward the other end of the tapered hole may be provided in the tapered hole.

  In the invention which concerns on Claim 1, even if it uses repeatedly the operation member for adjusting the discharged water flow rate, the faucet which can be maintained in a favorable state is obtained. That is, when the screw member inserted into the hole formed in the upper and lower direction on the upper part of the control member is screwed into the block inserted into the tapered hole that traverses the hole, the head of the screw member and the block are blocked along with this screwing. A force is generated in the direction of approaching. A part of this force is converted into a force by which the block moves to the other end side along the inner peripheral surface of the tapered hole. Therefore, when the screw member is screwed to the block, a force is generated in a direction in which the head of the screw member and the block are brought close to each other. Since the clamping force is ensured when clamping with, and a force is applied to the block in the direction of moving upward and the other end side of the tapered hole, the screw member is strongly fixed by this block. Become. Therefore, even if the operation member is used repeatedly, it can be kept in a good state.

  In the invention according to claim 2, since the force in the direction of moving toward the other end of the tapered hole applied to the block is increased, the screw member is more strongly fixed by this block.

  1 to 3 show a first embodiment of the present invention, and FIG. 1 is a longitudinal sectional view schematically showing the configuration of a faucet according to the first embodiment of the present invention, FIG. FIG. 3 is an explanatory view and a perspective view schematically showing a configuration of a main part of the water faucet.

  The faucet of this embodiment is a single faucet, and its configuration will be described in detail below. First, in FIG. 1 and FIG. 2, 1 is a faucet body, and this faucet body 1 passes through the inside from the water supply part 2 of the rear side from the front water discharge part 3 to the downstream side. It is configured to be derived. The interior of the faucet body 1 is partitioned into an upstream space 5 and a downstream space 6 by a partition wall 4. The central portion 7 of the partition wall 4 extends in the front-rear direction, and is configured such that the downstream space 6 is located above the central portion 7 and the upstream space 5 is located below. A communication hole 8 is formed in the central portion 7, and the upstream space 5 and the downstream space 6 communicate with each other through the communication hole 8.

  Further, an annular valve seat 9 projects from the peripheral portion of the communication hole 8 in the central portion 7 of the partition wall 4, and can be moved close to and away from the valve seat 9. A valve body 10 that is in pressure contact with 9 is provided above the valve seat 9. The valve body 10 includes a rod-like portion 11 extending in the vertical direction, a disk-like pedestal 12 provided on the lower side of the rod-like portion 11, and provided on the lower surface of the pedestal 12 and capable of being pressed against the valve seat 9. And a packing 13 made of synthetic rubber.

  Reference numeral 14 denotes a plug rod as a control member that controls the valve body 10 to adjust the opening degree of the valve body 10 with respect to the valve seat 9. The plug rod 14 is provided with a hole 15 for guiding the rod-shaped portion 11 of the valve body 10 upward from the lower surface, and the valve body 10 is only allowed to move up and down by this guide. Further, a male threaded portion 16 is formed on the lower side surface of the plug bar 14, and this male threaded portion 16 is screwed into a female threaded portion 18 on the inner surface of a cylindrical portion 17 projecting from the central upper portion of the faucet body 1. The downstream space 6 is closed by screwing. The plug bar 14 is inserted through the cylindrical portion 17, and the upper portion protrudes upward from the upper end of the cylindrical portion 17.

  Reference numeral 19 denotes a pressing metal fitting that is inserted into the upper portion of the plug bar 14 and screwed into the cylindrical portion 17. A triangular packing 20 is provided inside the packing metal 20, and the packing 20 is supported in the pressing metal 19 by a receiving plate 21.

  Reference numeral 22 denotes an operating member for rotating the plug bar 14 and includes a main body 23 and a lever 24 connected to the main body 23 as shown in FIG. An inner serration 26 that meshes with an outer serration 25 provided on the upper outer peripheral surface of the plug bar 14 is provided in the main body 23, and a small-diameter portion 27 is continuously provided on the upper side of the inner serration 26. A large-diameter portion 28 is continuously provided above the small-diameter portion 27.

  Reference numeral 29 denotes a water discharge pipe connected to the water discharge portion 3 of the faucet body 1.

  The configuration so far is not different from the conventional single water tap. The single faucet of this embodiment is characterized by the mounting structure of the operation member 22. Hereinafter, the characteristic structure of the single water tap of this embodiment will be described.

  In FIG. 2, reference numeral 30 denotes a hole formed in the upper and lower direction in the upper part of the plug bar 14 (specifically, formed downward from the upper surface of the plug bar 14). A tapered hole 31 that narrows toward one end is provided. Reference numeral 32 denotes a block which is inserted into the tapered hole 31 and has a substantially cylindrical shape larger than the hole 30, and its outer surface is tapered so as to follow the inner surface of the tapered hole 31. The block 32 is made of, for example, a resin having an appropriate softness such as ABS resin, and has a through hole 33 extending in the vertical direction having a smaller inner diameter than the small diameter portion 27 of the operation member 22 and the hole 30 of the plug bar 14. Have.

  Reference numeral 34 denotes a screw member that is screwed into the block 32 that is inserted into the hole 30 of the plug bar 14 from above, a male screw part 35 having an outer diameter substantially matching the inner diameter of the hole 30 of the plug bar 14, and an operation And a head portion 36 having an outer diameter larger than the inner diameter of the small-diameter portion 27 of the member 22.

  Reference numeral 37 denotes a sheet member provided between the head portion 36 of the screw member 34 and the small-diameter portion 27 of the operation member 22, and has an insertion hole 38 inserted through the male screw portion 35 of the screw member 34. A cover member 39 is detachably attached to the upper surface of the main body 23 of the operation member 22 so as to cover the head portion 36 of the screw member 34.

  Next, how to attach the operation member 22 will be described. First, the block 32 is inserted from the other end side of the tapered hole 31 of the plug bar 14, and the inner serration 26 of the operation member 22 is fitted into the outer serration 25 of the plug bar 14. Subsequently, the sheet member 37 is placed on the upper side of the small diameter portion 27 of the operation member 22, and the male screw portion 35 of the screw member 34 is inserted into the insertion hole 38 of the sheet member 37, the small diameter portion 27 of the operation member 22, and the hole of the plug rod 14. 30 is inserted. When the male screw portion 35 of the screw member 34 reaches the upper surface of the block 32, the screw 36 is screwed until the head portion 36 of the screw member 34 comes into pressure contact with the upper surface of the small-diameter portion 27 of the operation member 22 via the sheet member 37. The male thread portion 35 of the member 34 is screwed into the through hole 33 of the block 32, whereby the screw member 34 is in the state shown in FIG. At this time, the male screw portion 35 of the screw member 34 is in a state where the lower portion protrudes below the through hole 33.

  Here, as the screw member 34 is screwed, a female screw portion (not shown) corresponding to the male screw portion 35 of the screw member 34 is formed in the through hole 33, and the head 36 and the block 32 of the screw member 34 are formed. A force is generated in the direction of approaching. And since a part of this force is comprised so that the taper-shaped outer peripheral surface of the block 32 may follow the inner peripheral surface of the taper hole 31, it is a force which moves the block 32 to the other end side of the taper hole 31. Converted.

  Therefore, by screwing the screw member 34 into the through hole 33 until the state shown in FIG. 3 is reached, a force is generated in a direction in which the head portion 36 of the screw member 34 and the block 32 are brought close to each other. Is clamped between the head portion 35 of the screw member 34 and the upper end portion of the stopper rod 14. At this time, the screw member 34 is strongly fixed by the block 32 to which a force is applied in the direction of moving upward and the other end side of the tapered hole 31.

  Finally, by attaching the cover member 39 to the upper surface of the main body portion 23 of the operation member 22, the attachment of the operation member 22 is completed.

  In the single water faucet to which the operation member 22 is attached as described above, when the operation member 22 is rotated in one direction, the plug bar 14 moves upward, the packing 13 is pushed up by the water pressure and is detached from the valve seat 9. Water flows from the upstream space 5 of the faucet body 1 to the downstream space 6 through the communication hole 8, and is discharged from a water outlet 29 a provided at the downstream end of the water discharge pipe 29 through the water discharge portion 3 and the water discharge pipe 29. The Moreover, the water discharge flow rate from the water discharge port 29a can be appropriately adjusted by rotating the operation member 22.

  4 to 6 show a second embodiment of the present invention, FIG. 4 is an exploded perspective view schematically showing the configuration of a faucet according to the second embodiment of the present invention, and FIG. FIG. 6 is a longitudinal sectional view schematically showing the configuration of the main part of the faucet, and FIG. 6 is an exploded vertical sectional view schematically showing the configuration of the main part of the faucet.

  The faucet of this embodiment is a single lever type hot / cold water faucet, and its configuration will be described below. First, in FIG. 4, reference numeral 40 denotes a faucet body, to which a hot water introduction pipe 41, a water introduction pipe 42, and a discharge pipe 43 are connected, and hot water from the hot water introduction pipe 41 and water from the water introduction pipe 42 are appropriately connected. The hot and cold water mixed at a rate of 5 is discharged from the discharge pipe 43.

  As shown in FIG. 5, the faucet body 40 detachably incorporates a cartridge 44 for mixing hot water introduced from the hot water introduction pipe 41 and the water introduction pipe 42. The cartridge 44 has a hot water inlet pipe 41, a hot water valve hole communicating with the water inlet pipe 42 through the attachment (not shown), a water valve hole (both not shown), and mixing in the case body 45. A fixed disk 46 having a mixed water valve hole 46a communicating with a water flow path (not shown), and a movable disk 47 as a valve body slidably mounted on the fixed disk 46 in a watertight state; A guide 48 made of a synthetic resin material provided above the movable disk 47, and a lever as a control member that is pivotally supported by the guide 48 so as to be rotatable and tiltable, and protrudes from the upper part thereof to control the movable disk 47. 49, and a handle (see FIG. 4) as an operation member 50 for operating the lever 49 is fixed to the lever 49 protruding from the upper portion of the cartridge 44. There.

  Specifically, the inside of the cartridge 44 is formed in a substantially cylindrical shape, and a guide 48 is rotatably inserted therein. Further, a lever 49 made of a metal material is pivotally supported around the fulcrum 49 a in the guide 48, and the lower end of the lever 49 is engaged with a recess 47 a provided on the upper part of the movable disk 47, and the upper end thereof is The operation member 50 for operation made of a synthetic resin material is fixed. The front and rear portions of the guide 48 are provided with contact portions 51 that can contact the front and rear ends of the lever 49, respectively.

  Further, the guide 48 is integrally formed with a locking projection (not shown) at an appropriate position on the outer periphery thereof, and the locking projection is formed on the inner peripheral surface of the case body 45 of the cartridge 44. By fitting in a groove (not shown), the rotation range of the guide 48 is limited. That is, the rotation range of the operation member 50 is limited to the operation range from cold water to hot water, and is configured not to rotate more than necessary.

  Furthermore, the upper end portions on both the left and right sides of the guide 48 are formed in an arc shape, and for example, three pairs of grooves 52 are formed at substantially equal intervals in the front-rear direction on the upper end portions on the left and right sides.

  4 to 6, reference numeral 53 denotes an engaging member that is mounted from above the lever 49 in a state where the cartridge 44 is assembled. For example, a frame body 54 formed of resin or the like and a lower surface of the frame body 54 are provided. It is comprised by the metal board | plate material 55 with which it mounts | wears. An opening 56 for fitting the lever 49 is formed at the center of the engaging member 53, and a pair of bent portions 57 are formed on the plate material 55. Further, the lower portion of the frame body 54 is a pair of guide contact surfaces that draw an arc having substantially the same size as the arc of the upper end portion of the guide 48.

  Then, by mounting the engaging member 53 on the lever 49 and assembling the cartridge 44, the bent portion 57 becomes an engaging piece that engages with the three pairs of grooves 52 of the guide 48. 57, the rotation of the lever 49 in the front-rear (vertical) direction is restricted at predetermined angles. As described above, since the bent portions 57 corresponding to the respective grooves 52 are formed by bending the metal plate, the bent portions 57 are not easily worn, and good position regulation can be performed indefinitely.

  4 to 6, reference numeral 58 denotes a cap member attached to the upper end portion of the lever 49 in order to prevent the engaging member 53 from being lifted, and a male screw portion of a screw member 64 to be described later is provided at the center of the ceiling portion. A through hole 59 for inserting 65 is provided.

  Further, as shown in FIG. 6, the operation member 50 includes a recessed portion 50a into which the upper end portion of the lever 49 with the cap member 58 attached is inserted, and a small-diameter portion is disposed above the recessed portion 50a. 50b is continuously provided.

  In the single lever type hot / cold water mixing faucet having the above-described configuration, the hot water and water flowing through the hot water introducing pipe 41 and the water introducing pipe 42 reach the hot water valve hole and the water valve hole provided in the fixed disk 46. Then, the liquid flows into a hot and cold water mixing channel 47a formed in the lower part of the movable disk 47 and having a substantially elliptical shape in plan view. Thereafter, hot water in the hot water / mixing channel 47a flows into a mixed water channel (not shown) through a mixed water valve hole 46a provided in the fixed disk 46, and a discharge pipe provided downstream thereof. 43 is discharged to the outside.

  Then, the operating member 50 is rotated in the front-rear (up-and-down) direction to move the movable disk 47 in the front-rear direction, and the hot-water mixing flow path 47 a formed in the movable disk 47 and the hot water provided in the fixed disk 46. The flow rate of hot water can be adjusted by changing the area where the valve hole and the water valve hole overlap. Further, the operation member 50 is rotated in the left-right direction to move the movable disk 47 in the left-right direction, and the hot water / water mixing channel 47a overlaps the hot water valve hole of the fixed disk 46 and the area of the hot water valve hole overlaps. By adjusting the ratio, the mixing ratio of hot and cold water can be adjusted.

  Moreover, the single lever type hot / cold mixing tap configured as described above can regulate the vertical rotation of the operation member 50 in three stages by the engagement of the three pairs of grooves 52 and the engagement pieces 57. .

  That is, the movable disk 47 in the cartridge 44 can be freely rotated and translated by operating the operation member 50, and the faucet body 40 appropriately adjusts the discharge flow rate of the mixed water by tilting the operation member 50. It is possible to adjust the mixing ratio of hot and cold water appropriately by the turning operation.

  The configuration up to here is no different from the conventional single lever type hot and cold water mixing tap. The single lever type hot and cold water mixing tap of this embodiment is characterized by the mounting structure of the operation member 50. Hereinafter, the characteristic structure of the single lever type hot and cold water mixing tap of this embodiment will be described.

  In FIG. 6, reference numeral 60 denotes a hole formed in the upper and lower direction on the upper portion of the lever 49 (specifically, formed downward from the upper surface of the lever 49). A tapered hole 61 that narrows as it is formed is provided. Note that one end side of the tapered hole 61 is closed by a closing wall W formed of a part of the side wall of the lever 49. A block 62 is inserted into the tapered hole 61 and has a substantially cylindrical shape larger than the hole 60. The outer surface of the block 62 is tapered so as to follow the inner surface of the tapered hole 61. The block 62 is made of, for example, a metal such as brass, and an internal thread portion 63 having an inner diameter smaller than the inner diameter of the small-diameter portion 50b of the operation member 50 and the hole 60 of the lever 49 extends vertically from the upper end surface to the lower end surface. Is provided. Further, between the blocking wall W and the block 62 in the tapered hole 61, an elastic member for biasing the block 62 toward the other end side of the tapered hole 61 having an appropriate elasticity in the form of a sheet or a plate. (For example, a leaf spring) D is inserted.

  Reference numeral 64 denotes a screw member that is screwed into the block 62 inserted into the hole 60 of the lever 49 from above, a male screw portion 65 whose outer diameter substantially matches the inner diameter of the hole 60 of the lever 49, and the operation member 50. And a head 66 having an outer diameter larger than the inner diameter of the small diameter portion 50b.

  In addition, 67 is a sheet | seat member provided between the head 66 of the screw member 64, and the small diameter part 50b of the operation member 50, The insertion hole 68 (refer FIG. 4) penetrated by the external thread part 65 of the screw member 64 is shown. Have. Reference numeral 69 denotes a cover member that is detachably attached to the upper surface of the operation member 50 so as to cover the head 66 of the screw member 64.

  Next, how to attach the operation member 50 will be described. First, as shown in FIGS. 4 and 6, the elastic member D and the block 62 are arranged from the other end side of the tapered hole 61 of the lever 49 so that the elastic member D is positioned on one end side of the tapered hole 61 (on the blocking wall W). Insert so that it touches. Further, the engaging member 53 is attached to the lever 49 and the lever 49 is covered with the cap member 58. Then, the operating member 50 is placed on the lever 49 so that the upper end portion of the lever 49 with the cap member 58 attached is inserted into the recessed portion 50a. Subsequently, the sheet member 67 is placed on the upper side of the small diameter portion 50 b of the operation member 50, and the male screw portion 65 of the screw member 64 is inserted into the insertion hole 68 of the sheet member 67, the small diameter portion 50 b of the operation member 50, and the hole 60 of the lever 49. Insert inside. When the male screw portion 65 of the screw member 64 reaches the upper surface of the block 62, the screw 66 is screwed until the head portion 66 of the screw member 64 comes into pressure contact with the upper surface of the small diameter portion 50b of the operation member 50 via the sheet member 67. The male screw portion 65 of the member 64 is screwed into the female screw portion 63 of the block 62. At this time, the lower portion of the male screw portion 65 of the screw member 64 protrudes below the female screw portion 63.

  Here, as the screw member 64 is screwed in, a force is generated in a direction in which the head 66 of the screw member 64 and the block 62 are brought closer to each other. And, since a part of this force is configured so that the tapered outer peripheral surface of the block 62 is along the inner peripheral surface of the tapered hole 61, the force that moves the block 62 to the other end side of the tapered hole 61 is used. Converted.

  Accordingly, when the screw member 64 is screwed into the female screw portion 63, a force is generated in a direction in which the head 66 of the screw member 64 and the block 62 are brought close to each other, so that the small diameter portion 50 b of the operation member 50 is replaced with the head 65 of the screw member 64. And the upper end of the lever 49, the clamping force can be secured. At this time, the screw member 64 is firmly fixed by the block 62 to which a force is applied in the direction of moving upward and the other end side of the tapered hole 61.

  Finally, attaching the cover member 69 to the upper surface of the operation member 50 completes the attachment of the operation member 50.

  In addition, this invention is not restricted to said embodiment, It can implement in various deformation | transformation. For example, in the single water faucet according to the first embodiment, instead of the resin block 32 having the through-hole 33, the metal block 62 having the female screw portion 63 shown in the second embodiment is used. On the contrary, in the single lever type faucet according to the second embodiment, instead of the metal block 62 having the female screw portion 63, the through hole 33 shown in the first embodiment is used. You may use the resin-made blocks 32 which have.

  In the first embodiment, the block 32 may have planar upper and lower surfaces 70a and 70b and left and right surfaces 70c and 70d, as shown in FIGS. In this case, as shown in FIGS. 7A and 7B, only the upper surface 70a may be an inclined surface so that the block 32 becomes thinner toward the one end side. In addition to the upper surface 32a, the lower surface 32b as well as the upper surface 32a may be configured as an inclined surface so that the block 32 becomes thinner toward one end side, and either one or both of the left and right surfaces 70c and 70d are the same as the upper surface 32a. As an inclined surface, the block 32 may be configured to become thinner toward one end side. As described above, the shape may be changed as appropriate, as is the case with the block 62 in the second embodiment.

It is a longitudinal section showing roughly the composition of the faucet concerning a 1st embodiment of this invention. It is explanatory drawing which shows roughly the structure of the principal part of the faucet in the said 1st Embodiment. It is a perspective view which shows roughly the structure of the principal part of the water tap in the said 1st Embodiment. It is a perspective view showing roughly the composition of the faucet concerning a 2nd embodiment of this invention. It is a longitudinal cross-sectional view which shows schematically the structure of the principal part of the faucet in the said 2nd Embodiment. It is a disassembled longitudinal cross-sectional view which shows schematically the structure of the principal part of the water tap in the said 2nd Embodiment. (A) And (B) is the perspective view and longitudinal cross-sectional view which show schematically the structure of the modification of the block in the said 1st Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Valve body 14 Control member 22 Operation member 30 Hole 31 Tapered hole 32 Block 34 Screw member 35 Male thread part 36 Head

Claims (2)

  A control member for controlling the valve body; an operation member for operating the control member; and a screw member inserted from above into a hole formed in an upper and lower direction on the control member. A faucet configured to sandwich an operation member between a head and an upper end portion of a control member, wherein the control member is provided with a tapered hole that crosses the hole and narrows toward one end. A water faucet comprising a block inserted into the tapered hole, wherein the male screw portion of the screw member is screwed to the block.   The faucet according to claim 1, wherein an elastic member for urging the block toward the other end side of the tapered hole is provided in the tapered hole.

Images