JP5365993B2 - shower head - Google Patents

Description

  The present invention relates to a cylindrical shower head used as a part of hot water supply equipment in a bathroom, a bathroom vanity or a sink.

  With regard to the shower head, in particular overseas, there is a known problem that clogging occurs in the water spray holes of the shower head because the water component contains a large amount of calcium. For this reason, in order to remove clogged calcium, the water spray plate has a structure in which the water spray hole is made of an elastic body such as rubber and the elastic body is covered with a rigid body such as resin or metal in order to ensure pressure resistance. It has been. In addition, it is desirable that the water spray holes of the water spray plate have an inclination in order to obtain the required water spray range, and the elastic body has a flat base portion and a plurality of water spray holes perpendicular to the elastic body. There is also known a configuration in which the water spray hole is inclined by pressing the elastic body against a rigid body having a curved surface in contact with the elastic body. In addition, showerheads having various shapes and structures have been proposed in the past, but as those related to the present invention, for example, “Patent Document 1 or Patent Document 2” shown in FIG. Cylindrical shower head ".

JP 2004-105649 A JP 2004-105650 A

    When a structure that covers an elastic body with a rigid body such as resin or metal and a structure that tilts the water spray hole is used in, for example, a “cylindrical shower head” as shown in FIG. 4, the rigid elastic body is pressed. If the part (inner diameter part of the cylinder) is offset by taking the wall thickness uniformly from the outer diameter of the cylinder, the curvature is too large, so if a flat elastic body is pressed against this, the inclination of the sprinkling holes will be There is a problem that the water is spread over a wider range than the required watering plate range. In order to prevent this problem, the thickness of the cylindrical part must be uneven. If the rigid body is made of a molded product such as a resin, there is a risk that the appearance may be poor due to sink marks during molding. The reality is that it is difficult to obtain the required watering range in a part.

    In addition, when the curved surface is configured in the axial direction of the cylindrical shape at the rigid body part, the molded body cannot be removed if the rigid body is configured with a resin molded product, so the curved surface that presses the elastic body is divided and configured with separate parts There is a need to.

  In this case, in order to fix another part, a method such as using a screw or welding can be considered, but when fixing with a screw, space is taken up by the screw and screw boss, etc., the shower itself becomes large, There is a problem that the required watering condition cannot be obtained. Moreover, when fixing by welding, there exists a problem which a welded part is damaged and water leaks by water pressure or a drop impact.

  The problem to be solved by the present invention is to provide a cylindrical shower head having a desired watering range and using a watering plate made of an elastic body and a watering case made of a rigid material.

In order to solve the above-described problem, the present invention has a plurality of watering nipples having water passage holes for discharging hot water on the surface, and is in contact with the surface of the watering plate formed of an elastic body. A plurality of watering holes for inserting the plurality of watering nipples respectively, and a watering case made of a rigid body, and pressing the surface of the watering plate against the back surface of the watering case, The watering nipples protrude from the watering holes, and the hot water supplied from the back side of the watering plate is a cylindrical shower head from which the watering nipples are discharged. The cylindrical shower head has a concave shape in the axial direction, a convex shape in the direction perpendicular to the axial direction, and a smaller curvature than the back surface of the watering case. It is, back of the watering case, along the axial direction, characterized in that it is a linear shape.

  With such a configuration, the surface of the water spray plate has a concave shape in the axial direction of the cylindrical shower head, the vertical direction to the axial direction is a convex shape, and further has a smaller curvature than the back surface of the water spray case, Since the back surface of the watering case is made flat in the axial direction instead of concave or convex, the watering nipple expands both in the axial direction and in the vertical direction by pressing the watering plate against the back surface of the watering case. Can have the desired watering range. In addition, since the water spray plate is curved instead of the water spray case, there is a problem that the mold cannot be removed when the water spray case made of a rigid body is curved with respect to the axial direction, and only the curved surface part is composed of separate parts. The problem of needing to be eliminated is eliminated, and the water spray case can be formed by using conventional processing, so that a cylindrical shower head having a desired water spray range can be obtained by simple processing.

  The rigid body here means a metal material or a material such as a hard plastic such as POM, ABS, PP. The elastic body here is a material having an elastic function such as silicon rubber or TPE.

  The curvature here indicates the degree of curvature of the curved surface, and the curvature increases as the curvature increases.

  According to the present invention, it is possible to provide a cylindrical shower head having a desired watering range and using a watering plate formed of an elastic body and a watering case formed of a rigid material.

It is a perspective view which shows the shower head which is embodiment of this invention. It is a partial exploded perspective view of the shower head shown in FIG. It is sectional drawing which showed the cross section of DD in FIG. It is sectional drawing which shows the conventional cylindrical shower head.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is a perspective view showing a shower head according to an embodiment of the present invention, FIG. 2 is a partially exploded perspective view of the shower head shown in FIG. 1, and FIG. 3 is a cross-sectional view showing cross sections D to D in FIG. .

  As shown in FIG. 1, a shower head 100 includes a water discharge unit 110 that discharges hot water, a cover 120 as an outer shell, a cap 130 provided at the tip of the cover 120, and a water supply port that supplies hot water to the water discharge unit 110. 150.

  The cover 120 has a cylindrical shape, and a water spray case 112 is inserted on the front surface 120 a side of the cover, and a notch 120 b for fitting with the cover 120 is provided. Thereby, the water spray case 112 is positioned by the cover 120.

  As shown in FIG. 2, the water discharger 110 includes a watering case 112, a watering plate 113, and a watering case holder 114.

  The watering case 112 has a cylindrical shape, has an arc shape smaller than the inner diameter of the cover 120, and has a shape in which a projection 112d of the watering case is provided on the front surface 112f side. A plurality of watering holes 112e through which a plurality of watering nipples 113e projectingly contact the surface 113a of the watering plate are inserted in a predetermined position on the surface 112a of the watering case. In addition, a cap connection part 112g is provided on the upper part to connect with the cap 130.

The watering plate 113 is made of an elastic material such as silicon rubber or TPE.
The surface 113a of the watering plate is formed in a concave shape in the axial direction of the shower head and a convex shape in the direction perpendicular to the axial direction, and the back surface 113b of the watering plate has a shape that is uniformly offset from the surface 113a of the watering plate. The thickness of the plate 113 is made uniform.

  Further, the surface 113a is provided with a watering nipple 113e having a watering hole 113d of a watering plate for discharging hot water in the same number as the watering hole 112e, and presses the watering plate 113 against the back surface 112b of the watering case. And the axial direction of the shower head is concave, and as shown in FIG. 3, the watering nipple 113e can obtain a phase with respect to the axial direction, and the phase angle is increased by α, The watering range from the center can be a watering range 113f having a desired spread.

  Further, since the water spray plate 113 is formed in a convex shape in the direction perpendicular to the axial direction and further has a smaller curvature than the back surface of the water spray case, the water spray plate 113 is pressed against the back surface 112b of the water spray case. As with the axial direction shown in FIG. 3, the watering nipple 113e can obtain a phase also in the vertical direction, and as a result, the watering range from the center is set to a watering range having a desired spread. Can do.

The water spray case retainer 114 is made of a thermoplastic resin material and has a substantially square outer appearance. The role of preventing the water spray plate 113 from being easily moved by pushing the water spray nipple 113e when removing impurities such as calcium by applying the surface 114a of the water spray case holder to the back surface 113b of the water spray plate. So that a good watering condition can be maintained.
In addition, in the left-right direction, a water passage hole 114d for holding the water spray plate is provided horizontally, and hot water passes through the water hole 114d and is supplied to the water spray nipple 113e.

  Next, a method for forming and processing the watering case 112 and the watering plate 113 will be described.

  The watering case 112 has a cylindrical shape, and the back surface 112b of the watering case 112 in contact with the surface 113a of the watering plate 113 is formed in a flat shape having substantially no curvature in the axial direction. Moreover, the opening part 112h is provided in the upper part of the watering case 112, and the cylindrical inside is visible from this opening part 112h except the watering hole 112e. Since it is such a structure, there is no reverse inclination part etc., and it can shape | mold by a general metal mold structure even if it is integral shape. More specifically, the mold structure is divided into three parts: a cavity, a core, and a slide core inserted into the cavity and the core, which are divided back and forth on the central axis of the water spray case 112. An outer appearance portion and a watering hole on the front side of the water spray plate are formed by the core, and an outer appearance portion on the rear side of the water spray plate is formed by the mold. Further, the inside of the cylindrical shape is formed by a slide core.

  Next, how to assemble the water discharger 110 will be described. First, the watering plate 113 is inserted from above the watering case 112, and then the watering nipple 113 e of the watering plate 113 is inserted into the watering hole 112 e of the watering case 112.

Next, the watering plate holder 114 is similarly inserted from above, and the watering plate 113 is held down by disposing the rear surface 113b of the watering plate and the surface 114a of the watering board holder in contact with each other. The hot water supplied from the water supply port 150 passes through the water passage hole 114d of the water spray plate holder and is discharged through the water hole 113d of the water spray plate.
Subsequently, the cover 120 is inserted from below the spout unit 110 assembled in the order of the watering case 112, the watering plate 113, and the watering plate presser 114, and is formed in a state of being built in the watering case 112. At that time, the notch 120b of the cover 120 and the projection 112d of the watering case are positioned, and after insertion, the side surface 120c of the cover and the side surface 112c of the watering case are brought into contact with each other.

Further, the cap 130 is integrated with the watering case 112 by screwing the cap connection part 112g of the watering case 112 and the watering case connection part (not shown) of the cap 130. By comprising in this way, while the back surface 113b side of a watering plate is pressed from the watering plate holding | suppressing 114, the surface 113a side of a watering plate is contact | abutted to the bottom face 112b of a watering case. As a result, as shown in FIG. 3, a phase is obtained in each of the axial direction of the shower head and the direction perpendicular to the axial direction, and the phase angle is increased by α. As a result, the watering range from the center becomes 113f, and the desired watering The effect that the range 113f can be set is obtained.

  The shower head of this invention can be used as a part of hot water supply equipment in a bathroom, a bathroom vanity or a sink.

100 Shower head 110 Sprinkling part 112 Sprinkling case 112a Sprinkling case surface 112b Sprinkling case back face 112c Sprinkling case side face 112d Sprinkling case convex part 112e Sprinkling hole 112f Front 112g Cap connection part 112h Opening 113 Sprinkling plate 113a Sprinkling plate surface 113b Back surface of watering plate 113d Watering hole of watering plate 113e Watering nipple 113f Watering range 114 Watering plate holder 114a Surface of watering plate holder 114d Watering hole of watering plate holder 120 Cover 120a Front face 120b of cover Notch 120c Side of cover 130 Cap 150 Water supply port

Claims (1)

A plurality of watering nipples having water passage holes for discharging hot water are formed on the surface, are arranged in contact with the surface of the watering plate made of an elastic body and the watering plate, and each of the plurality of watering nipples is inserted therethrough. A plurality of water spray holes, and a water spray case made of a rigid body, and by pressing the surface of the water spray plate against the back surface of the water spray case, the water spray nipples protrude from the water spray holes. A cylindrical shower head in which hot water supplied from the back side of the water spray plate is discharged from the water spray nipple, and the surface of the water spray plate has a concave shape in the axial direction of the cylindrical shower head, direction perpendicular to the axial direction is configured further reduced curvature than the back of the watering case a convex shape, the back of the watering case, the Along the direction, the shower head, which is a linear shape.

Images