JP5823851B2 - Faucet - Google Patents

Description

  The present invention relates to a water discharger.

  As a conventional water discharger, a mist generating device that is connected to a hot and cold water mixing faucet and that is configured to cause the hot water passing therethrough to be swirled and then ejected from the spray hole can be exemplified (see, for example, Patent Document 1). .

  According to this device, a room such as a bathroom can be misted without using an electric drive unit.

JP 2001-87340 A JP 2009-189606 A

  However, the above mist generating device is exclusively for the purpose of creating a mist in the room, and for example, a user who wants to bathe the body with hot water from the spray hole changes the form of water discharge for a more comfortable bathing comfort. The form of the hot water to be ejected is almost constant although it depends on the flow rate of the hot water.

  In Patent Literature 2, nozzle holes used for shower water discharge are provided one by one at different height positions so that the user can take a shower comfortably, and discharged from the nozzle holes arranged on the upper side. The technical idea that the particle size of the water particles is made larger than the particle size of the water particles discharged from the nozzle hole arranged on the lower side is disclosed. However, even when such a technique is used, the particle size of the water particles cannot be changed to the user's preference, and there is still room for improvement in terms of usability.

  As a result of earnest research, the present inventors not only enable fine adjustment of the water discharge form, which was impossible with the above-mentioned conventional technology, but also contributed to atomization of the water discharge, and further, the water discharge holes ( It has led to a water discharger that can also be added with a self-cleaning function that effectively prevents and eliminates clogging of watering holes).

  That is, an object of the present invention is to provide a water discharger that can achieve high usability.

In order to achieve the above object, a water discharger according to the present invention includes a handle that is rotatably held around an axis in the front-rear direction, and that is regulated so as not to move back and forth with the rotation. , A water spouting device provided with a plurality of sprinkling holes on the front wall of the handle, having a plurality of pins inserted from the rear side with respect to the plurality of sprinkling holes, and being movable in the front-rear direction. An opening adjustment member that engages with the handle and rotates around the axis in the front-rear direction together with the handle, and a conversion for converting the rotation of the opening adjustment member into a linear motion in the front-rear direction of the opening adjustment member The opening adjusting member that rotates about the axis in the front-rear direction in accordance with the turning operation of the handle moves in the front-rear direction by the action of the conversion mechanism, The insertion depth of the plurality of pins is changed. Ri, the opening of the plurality of nozzle holes is adjusted, furthermore, the inner wall surface of the nozzle holes, tapered surface portion is provided with a diameter or diameter decreases toward the front side, the tapered outer circumferential surface of the pin the portion located inside of the surface portion, the bulge portion whose diameter decreases from the diameter increasing from the rear to the front side, characterized that you have provided (claim 1).

In the water spouting device, the opening adjustment member has a base plate portion that engages with the inside of a cylindrical wall extending from the periphery of the front wall of the handle toward the rear side, and on the front side of the base plate portion. The plurality of pins may be continuously provided, and a through-hole portion that penetrates the base plate portion and forms a water passage may be provided to avoid a portion where the plurality of pins are continuously provided (Claim 2 ).

In the water discharger, the conversion mechanism includes a female screw portion fixedly disposed on the rear side of the base plate portion and forming a water passage, and a male screw portion that is provided continuously on the rear side of the base plate portion and screwed into the female screw portion. The male screw part may be provided with an open part that opens from the inner peripheral side to the outer peripheral side of the male screw part to form a water passage (Claim 3 ).

  In this invention, the water discharging tool which can achieve high usability is obtained.

  That is, in the water discharger of the invention according to each claim of the present application, the pin insertion depth with respect to the water spray hole is changed with the turning operation of the handle, and the mechanism of adjusting the opening degree of the water spray hole is used. Not only can the adjustment be made, but the opening can be made as close to zero as possible, contributing to atomization of water discharge (for example, mist-like water discharge), and water discharge holes (sprinkling holes) accompanying this atomization. It is also possible to add a self-cleaning function that effectively prevents and eliminates clogging of the pins by moving the pins.

In addition , the particle size of the water particles to be discharged can be adjusted easily and reliably.

It is a disassembled perspective view which shows roughly the structure of the water discharging tool which concerns on one embodiment of this invention. It is a perspective view which shows the structure of the said water discharging tool roughly. It is a perspective sectional view showing roughly the composition of the water discharging tool. (A) And (B) is sectional drawing which shows roughly the structure of the principal part of the said water discharging tool of the state with small and large opening of a watering hole, (C) is sectional drawing which expands and shows a watering hole It is. It is a perspective view which shows roughly the structure of the handle | steering_wheel of the said water discharging tool. It is a perspective view which shows roughly the structure of the said handle | steering_wheel in the state which assembled | attached the opening degree adjustment member of the said water discharging tool. It is a perspective view which shows roughly the structure of the said handle | steering-wheel and the opening degree adjustment member of the state which assembled | attached the holding member of the said water discharging tool. (A) And (B) is the perspective view seen from the front and back of the said opening degree adjustment member and holding member after an assembly | attachment. (A) And (B) is the perspective view seen from the front and back of the said opening degree adjustment member. (A) And (B) is the front view and back view which show the structure of the said opening degree adjustment member roughly. It is a side view which shows the structure of the said opening degree adjustment member roughly.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 and 2, the water discharger according to the present embodiment constitutes a shower head, and includes a handle 1 provided on a front wall 2 having a substantially circular shape when viewed from the front. The plurality of spray holes 3 are configured to discharge water (sprinkle). And this water discharging tool has a function which can perform fine adjustment of the water discharging form by rotation operation of the handle 1.

  First, the handle 1 is rotated around an axis X (see FIG. 1) in the front-rear direction. In the present embodiment, a substantially cylindrical holding member 4 (see FIG. 1) fitted inside the handle 1 is provided as a holding means for holding the handle 1 so that this rotation operation can be performed. That is, as shown in FIGS. 1 and 3, the holding member 4 is attached to the front portion of the shower head body 5 by a fastening mechanism using a female screw 6 a and a male screw 6 b, and has an annular step 7 on the rear portion of the outer peripheral surface. Have On the other hand, a plurality of claws 8 that are elastically engaged with the annular step 7 are formed inside the handle 1. In this embodiment, as shown in FIGS. 3 and 5, the front wall 2 of the handle 1 is formed. A cylindrical wall 9 having an inner / outer double wall structure extends from the peripheral edge to the rear side, and the annular inner wall 11 in contact with the outer peripheral surface of the holding member 4 among the annular outer wall 10 and the annular inner wall 11 constituting the tubular wall 9. On the rear end side, a plurality of inward claws 8 arranged on the same circumference so as to be elastically engaged with the annular stepped portion 7 from the outside are provided at equal intervals in the circumferential direction.

  As described above, the handle 1 is held by the holding member 4 so as to be rotatable about the axis X in the front-rear direction, and at the same time, the handle 1 is regulated so as not to move back and forth with the rotation about the axis X. Is done. That is, the movement of the handle 1 in the forward direction is restricted by the engagement of the claws 8 with the annular stepped portion 7 of the holding member 4 (see FIGS. 3 and 7), and the movement in the backward direction is determined by the handle. 1 (annular outer wall 10) is regulated by contact between the rear end portion of the shower head body 5 and the front portion of the shower head body 5 (see FIG. 3).

  In addition, the attachment (screwing) of the holding member 4 to the shower head main body 5 is performed, for example, by inserting an appropriate tool into the holding member 4 and a plurality of protrusions 4a (see FIG. 1) formed on the inner surface side of the holding member 4. It can be performed by engaging and rotating the holding member 4 together.

  As shown in FIG. 1, the water discharge device of the present embodiment also includes an opening degree adjusting member 12 disposed behind the front wall 2. As shown in FIGS. 9 to 11, the opening degree adjusting member 12 has a substantially disc-shaped base plate portion 13, and the front side of the base plate portion 13 has a plurality of water spray holes 3 of the handle 1. A plurality of pins 14 to be inserted from the rear side are projected. And with rotation operation of the handle | steering-wheel 1, the insertion depth of the some pin 14 with respect to the some water spray hole 3 is changed (refer FIG. 4 (A) and (B)), and, thereby, the some water spray hole 3 of FIG. The opening is adjusted.

  Here, in order to change the insertion depth of the plurality of pins 14 with respect to the plurality of water spray holes 3 in accordance with the turning operation of the handle 1, in this embodiment, the opening degree adjusting member 12 is provided in the front-rear direction. The opening adjustment member 12 is rotated about the axis X while the handle 1 is engaged with the handle 1 and is rotated about the axis X in the front-rear direction together with the handle 1. This is converted into a linear motion in the direction (X direction).

  Specifically, first, the base plate portion 13 of the opening adjustment member 12 is engaged with the annular inner wall 11 of the cylindrical wall 9 of the handle 1 in a state of being movable in the front-rear direction (similarly to spline fitting). Are engaged). That is, a plurality (eight in this example) of vertical grooves 15 (see FIGS. 1 and 9 to 11) are provided at equal intervals in the circumferential direction on the outer peripheral portion of the base plate portion 13. A plurality of engagement protrusions 16 (four in this example) are provided on the inner peripheral portion of the cylindrical wall 9 (annular inner wall 11) of the handle 1 at equal intervals in the circumferential direction (see FIGS. 5 and 6). ). The outer diameter of the base plate portion 13 is substantially the same as that of the holding member 4 (see FIGS. 8A and 8B).

  Further, the rotation mechanism 17 provided in the water discharger converts the rotation of the opening adjustment member 12 about the axis X into a linear motion in the front-rear direction (X direction) of the opening adjustment member 12. The conversion mechanism 17 includes a female screw portion 18 that is fixedly disposed on the rear side of the base plate portion 13 of the opening adjustment member 12, and a male screw portion 19 that is connected to the rear side of the base plate portion 13 and is screwed into the female screw portion 18. (See FIGS. 1 and 3).

  Here, as shown in FIG. 1, the female screw portion 18 is provided on the inner peripheral surface of the substantially cylindrical female screw forming member 20, and the female screw forming member 20 is provided at the front portion of the shower head body 5. It is mounted so as to be in a state of being fitted into the protruding cylindrical portion 21 protruding forward. The movement of the female screw forming member 20 in the state of being mounted on the shower head body 5 in the front-rear direction (X direction) and the rotation around the axis X are restricted. In order to make this restriction possible, in this embodiment, a plurality of restriction protrusions 22 (four in this example) are provided on the outer peripheral surface of the female thread forming member 20 at equal intervals in the circumferential direction. It engages with a plurality of (four in this example) engaging grooves 23 provided at equal intervals in the circumferential direction at the tip of the protruding cylinder portion 21 of the head body 5, and this engagement causes the female screw forming member 20 to be engaged. The backward movement and the rotation around the axis X are restricted. Further, the holding member 4 attached to the shower head main body 5 comes into contact with the restriction protrusions 22 engaged with the engagement grooves 23 from the front side, and this contact causes the front direction of the female screw forming member 20 to move forward. Movement to is restricted. Note that rattling of the female screw forming member 20 is reliably prevented by the plurality of rib-like protrusions 24 formed on the outer peripheral surface thereof and being crushed when inserted into the protruding cylindrical portion 21.

  As described above, in the water discharge device of the present embodiment, the holding member 4 and the female screw forming member 20 are mounted on the shower head body 5 in a state where movement in the front-rear direction and rotation around the axis X are restricted. On the other hand, the handle 1 held by the holding member 4 among these is capable of rotating around the axis X while being restricted from moving in the front-rear direction, and further engages with the handle 1 to form a female screw. The opening degree adjusting member 12 that is screwed into the female screw portion 18 of the member 20 rotates around the axis X together with the handle 1, and also moves in the front-rear direction according to the rotation direction.

  The flow of hot water in the water discharger will be described. The shower head main body 5 is provided with an introduction port 25 (see FIG. 1) at a position facing the inside of the protruding cylinder portion 21, and the hot water from the introduction port 25 is Then, it goes forward through the internal thread portion 18 of the internal thread forming member 20 that is fitted in the protruding cylinder portion 21 and forms a water passage. Here, as shown in FIGS. 9 to 11, the male screw portion 19 of the opening adjustment member 12 screwed to the female screw portion 18 penetrates the center of the male screw portion 19 in the front-rear direction and is on the front side of the base plate portion 13. A plurality of (four in this example) openings that are open from the inner peripheral side of the male screw part 19 (around the through hole 26) to the outer peripheral side and form a water passage with the through-hole 26 extending to A portion 27 is provided. Therefore, the hot water flowing forward through the internal thread portion 18 flows separately into the through hole 26 and the open portion 27 of the external thread portion 19 of the opening degree adjusting member 12 screwed to the internal thread portion 18.

  Then, the hot water flowing through the through hole 26 in the center of the male screw portion 19 collides with the center of the front wall 2 of the handle 1 and is then discharged from the sprinkling hole 3. Further, the hot water flowing through the open portion 27 at the periphery of the male screw portion 19 collides with the base plate portion 13 (in this example, the connected portion of the central four pins 14 in the base plate portion 13) (or the open portion before the collision). 27, and a plurality of through holes 28 (see FIG. 9) that form a water passage through the base plate portion 13 that are provided in a plurality so as to avoid the continuous connection portion of the plurality of pins 14 in the outer base plate portion 13. After passing through FIG. 10, water is discharged from the water spray hole 3.

  The watertightness between the outer peripheral surface of the holding member 4 and the shower head body 5 is, for example, by an O-ring 29, and between the outer peripheral surface of the holding member 4 and the inner peripheral surface of the annular inner wall 11 of the handle 1 is For example, each is held by U packing (or V packing) 30 (see FIG. 3).

  Here, as described above, the opening adjustment member 12 that rotates about the axis X in the front-rear direction in accordance with the turning operation of the handle 1 moves in the front-rear direction by the action of the conversion mechanism 17, thereby causing a plurality of water sprays. The insertion depth of the plurality of pins 14 with respect to the hole 3 is changed, and the opening degree of the plurality of water spray holes 3 is adjusted. And in this embodiment, as shown to FIG. 4 (A) and (B), the taper-shaped surface part 31 which diameter-expands toward the front side is provided in the front part of the inner wall surface of the water sprinkling hole 3, and the rear part is provided. Whereas the straight surface portion 32 is provided, a bulging portion 33 that increases in diameter from the rear side toward the front side and then decreases in diameter is provided in a portion located inside the tapered surface portion 31 on the outer peripheral surface of the pin 14. It has been. Accordingly, the hot water discharged from each water sprinkling hole 3 passes through the flow passage restricting portion formed by the tapered surface portion 31 and the bulging portion 33 formed in the water sprinkling hole 3. The hot water that has been atomized (misted) is diffused (flared) and discharged. Moreover, when the hot water collides with the front wall 2 of the handle 1 or the base plate portion 13 of the opening adjustment member 12 immediately before reaching the water sprinkling holes 3, it is possible to reliably atomize the diffusing water discharge (mist). Contribute.

  The maximum outer diameter of the pin 14 (the outer diameter of the bulging portion 33) is smaller than the inner diameter of the straight surface portion 32 of the water spray hole 3. Further, the gap between the pin 14 and the water spray hole 3 (the distance from the apex of the bulging portion 33 to the tapered surface portion 31 (see FIG. 4C)) is, for example, about 0.1 mm to 1.0 mm. it can. In the present embodiment, the gap between the rod-shaped portion 34 (see FIGS. 4A and 4B) formed on the rear side of the bulging portion 33 in the pin 14 and the straight surface portion 32 of the water spray hole 3 is 0.25 mm. It is constant at.

  Moreover, in this embodiment, from the position shown to FIG. 4 (A) to the position shown to the figure (B) is the movable range of the pin 14 (opening adjustment member 12), and when it exists in the former position The opening of the sprinkling hole 3 is the smallest, and the particle size of hot water discharged from the sprinkling hole 3 is the smallest. Moreover, the opening degree of the water sprinkling hole 3 when it is in the latter position is the largest, and the particle size of the hot water discharged is the largest. That is, the form of water discharge can be finely adjusted by turning the handle 1. In this example, if the handle 1 is operated within a predetermined turning range (actually about 180 degrees), the pin 14 is moved as described above. It can be stopped at an arbitrary position in the range (actually, a range of about 1.5 mm), and hot water composed of water particles having a particle size corresponding to the position can be discharged. Note that a rotation operation that exceeds the predetermined rotation range with respect to the handle 1 is restricted by, for example, a stopper that limits the rotation of the handle 1.

  In the water spouting device of this embodiment, the insertion depth of the pin 14 with respect to the water spray hole 3 is changed with the turning operation of the handle 1, and the mechanism of adjusting the opening degree of the water spray hole 3 is used as described above. Not only can fine adjustment be made, but the opening can be made as close to zero as possible, contributing to atomization of water discharge (for example, mist-like water discharge), and also water discharge holes (sprinkling holes) accompanying this atomization It is also possible to add a self-cleaning function that effectively prevents and eliminates clogging).

  In addition, this invention is not limited to said embodiment at all, Of course, it can change and implement variously in the range which does not deviate from the summary of this invention. For example, the following modifications can be given.

  Although the water discharging tool of this embodiment comprises a shower head, it is not restricted to this, For example, this invention can also be applied to the water discharging tool for body showers. In addition, the water discharge device of the present embodiment is, for example, a device that performs only mist-shaped shower water discharge, a device that performs mist-shaped shower water discharge and non-mist (normal) shower water discharge, or a non-mist (normal) shower. It can be configured to be either one that only discharges water.

  As is understood from FIG. 3, the handle 1 of the present embodiment is constructed by assembling a substantially disc-shaped shower plate on the front portion of a substantially cylindrical handle body (in FIG. However, the present invention is not limited to this, and for example, a handle 1 in which the shower plate is integrally formed with the handle body and cannot be separated may be used. .

  The claw 8 of the handle 1 may be engaged with the shower head main body 5 instead of the holding member 4. In this case, the handle 1 is provided with a claw that faces outward rather than inward, and each claw is attached to the shower head. The main body 5 may be locked.

  As shown in FIGS. 4A and 4B, the pin 14 of the present embodiment is formed by mounting a pin member 35 on the base plate portion 13, and the pin member 35 is the pin member. When 35 is inserted into the through-hole 36 provided in the base plate portion 13 from the rear, it is elastically deformed and passes through the through-hole 36. After passing, the elastic plate 35 is elastically restored and locked to the front side of the edge of the through-hole 36. It has a plurality of retaining blades 37 to be in a state and a flange 38 that is engaged with the rear side of the edge of the through-hole 36. However, the present invention is not limited to this. For example, the pin 14 is integrally formed with the base plate portion 13. May be.

  In the present embodiment, as shown in FIGS. 1 and 2, four water spray holes 3 are provided on the inner side of the outer eight water spray holes 3 on the front wall 2 of the handle 1. The arrangement can be changed as appropriate. For example, the central four watering holes 3 may be omitted, and only the four watering holes 3 that are not adjacent to each other among the eight outer watering holes 3 may be provided. Further, according to the number and arrangement of the sprinkling holes 3, the number and arrangement of the pins 14 of the opening adjusting member 12, the through holes 26 and the opening parts 27 of the male screw part 19, and the through hole parts 28 may be appropriately changed. For example, the through hole 26 can be omitted.

  You may comprise so that the taper-shaped surface part 31 provided in the inner wall face of the sprinkling hole 3 may be diameter-reduced instead of expanding toward the front side. Further, for example, in this case, the opening degree adjusting member 12 may be configured to make the opening degree zero (stop water).

  Needless to say, the above modifications may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1 Handle 2 Front wall 3 Sprinkling hole 4 Holding member 4a Protrusion 5 Shower head main body 6a Female screw 6b Male screw 7 Annular step part 8 Claw 9 Cylindrical wall 10 Annular outer wall 11 Annular inner wall 12 Opening adjustment member 13 Base plate part 14 Pin 15 Vertical groove 16 Engagement protrusion 17 Conversion mechanism 18 Female thread part 19 Male thread part 20 Female thread forming member 21 Projecting cylinder part 22 Restriction protrusion 23 Engaging groove 24 Rib-shaped protrusion 25 Introduction port 26 Through hole 27 Opening part 28 Through hole part 29 O Ring 30 U packing (V packing)
31 Tapered surface portion 32 Straight surface portion 33 Swelling portion 34 Bar-shaped portion 35 Pin member 36 Through hole 37 Retaining blade 38 Flange X Front-rear axis

Claims (3)

A water discharge provided with a handle that is rotatably held around an axis in the front-rear direction and that is regulated so as not to move back and forth along with the rotation, and a plurality of water spray holes are provided on the front wall of the handle Tools,
Opening adjustment that has a plurality of pins inserted from the rear side with respect to the plurality of water spray holes, engages with the handle while being movable in the front-rear direction, and rotates around the axis in the front-rear direction together with the handle Members,
A conversion mechanism for converting the rotation of the opening adjustment member into a linear motion in the front-rear direction of the opening adjustment member;
The plurality of pins are inserted into the plurality of water spray holes when the opening degree adjusting member that rotates about the axis in the front-rear direction in accordance with the rotation operation of the handle moves in the front-rear direction by the action of the conversion mechanism. The depth changes, the openings of the plurality of water spray holes are adjusted, and further, a tapered surface portion that expands or contracts toward the front side is provided on the inner wall surface of the water spray holes, and the outer peripheral surface of the pin the portion located on the inner side of the tapered surface portion, the water discharge device which is characterized that you have bulging portion whose diameter decreases from the diameter increasing from the rear to the front is provided. The opening adjustment member has a base plate portion that engages with the inside of a cylindrical wall extending from the periphery of the front wall of the handle toward the rear side, and the plurality of pins are disposed on the front side of the base plate portion. The water discharger according to claim 1 , wherein a through hole portion that is provided continuously and that penetrates the base plate portion to form a water passage is provided so as to avoid a portion where the plurality of pins are continuously provided. The conversion mechanism includes a female screw portion that is fixedly disposed on the rear side of the base plate portion and forms a water passage, and a male screw portion that is provided on the rear side of the base plate portion and is screwed to the female screw portion.
The water discharger according to claim 2 , wherein the male screw part is provided with an opening part that is opened from an inner peripheral side to an outer peripheral side of the male screw part to form a water passage.

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