JP2009279484A - Shower head and shower device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shower head and a shower device capable of improving the showering feeling felt by a user by increasing the volume of air contained in shower water sprinkled from the shower head. <P>SOLUTION: A plurality of through-holes 94 are formed side by side in the peripheral direction on the upper wall 111 of a flow-in member 68 for making water to flow into the inside space X of the shower head 31 and are arranged along the inner peripheral surface 110a of an outer peripheral wall 110. Because air introduced from a support part 75 of an under plate 63 is brought into contact with the almost of the surface of water flowing-out from the through-holes 94, the volume of air flowing with the water flowing-out from the through-holes 94 is increased to make the air contained in the water larger and the showering feeling felt when the user takes sprinkled shower water is improved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a shower head and a shower device, and more particularly to a shower head and a shower device that can increase the amount of air contained in shower water sprayed from the shower head and improve the comfort of the user. It is.

Japanese Patent Application Publication No. 2006-509629 discloses a shower head that sprays water mixed with air to the outside. This shower head has a perforated disk formed in a substantially tray shape and a substantially cylindrical aeration hub that supports the perforated disk from below, and is formed side by side in the circumferential direction of the perforated disk. Air introduced from the air mixing hub is mixed into the water supplied from the through hole, and the water mixed with the air is sprinkled to the outside. In addition, in the shower head of patent document 1, the through-hole located in a line with the circumferential direction of the perforated disk is formed in the position away from the inner surface of a bon-shaped outer peripheral wall.
Special table 2006-509629 (FIGS. 7 and 8 etc.)

  However, when the through holes arranged in the circumferential direction of the perforated disk are formed at positions away from the inner surface of the bonnet-shaped outer peripheral wall, when water continuously flows out from the through holes, the through holes A wall of water is formed in the circumferential direction by the water flowing out from the wall, and the space on the outer peripheral wall side of the perforated disk and the space on the axial center side are separated by the wall of the water. If the space on the outer peripheral wall side of the perforated disc is separated from the space on the axial center side, the air introduced from the aeration hub is difficult to be supplied to the space on the outer peripheral wall side, and the air in the space on the outer peripheral wall side If water is mixed in water, the space on the outer peripheral wall side will eventually become negative pressure. That is, most of the air introduced from the aeration hub comes into contact with the portion of the water flowing out of the through hole that faces the space on the axial center side.

  Here, the water mixed with air is generated in the process in which the air in contact with the water flowing out of the through hole flows together with the water. Therefore, in a configuration in which most of the air introduced from the aeration hub contacts only the portion of the water that flows out of the through hole that faces the space on the axial center side, it contacts the water that flows out of the through hole. Since the amount of air flowing with the water is reduced, the amount of air mixed into the water becomes insufficient.

  In addition, the shower water sprayed from the shower head becomes lighter and more comfortable for the user, for example, as the amount of air contained in the water increases. Therefore, like the shower head of patent document 1, when the quantity of the air mixed in water is inadequate, there existed a problem that the user-feeling feeling will fall.

  The present invention has been made to solve the above-described problems, and can increase the amount of air contained in the shower water sprayed from the shower head and improve the comfort of the user. An object is to provide a head and a shower device.

  In order to achieve this object, the shower head according to claim 1 has an outer shape formed in a substantially flat shape, mixes the liquid supplied to the internal space and the atmosphere, and sprinkles the water outside. A plurality of first through holes are formed side by side in the circumferential direction of the upper wall, and have an upper wall that covers the upper surface of the outer peripheral wall. An inflow member and an upper wall serving as an inner portion of a region surrounded by a plurality of first through holes formed in the upper wall of the inflow member are supported from below, and the air supplied into the internal space is inflowed A support member having an introduction path to be introduced inside the outer peripheral wall of the member, and a liquid formed between the support member and the outer peripheral wall of the inflow member, and flowing in the liquid from the first through hole of the inflow member. And a flow path for flowing into the support member The air introduced inside the outer peripheral wall of the inflow member flows into the flow path together with the liquid flowing in from the plurality of first through holes of the inflow member, and the plurality of first through holes of the inflow member are A part of the outer periphery of each first through hole includes the inner peripheral surface of the outer peripheral wall.

  The shower head according to claim 2 is the shower head according to claim 1, wherein the plurality of first through holes of the inflow member have a shortest distance between adjacent first through holes having a diameter of the first through hole. A liquid film is formed between the inner peripheral surface of the outer peripheral wall and each first through hole in a state where the liquid is continuously introduced from the first through hole.

  The shower head according to claim 3 is the shower head according to claim 1 or 2, wherein the inflow member projects downward from a surface of the upper wall supported by the support member, and the upper wall. A projecting portion that extends in at least three different directions from the axial center of the support member in the radial direction, and abuts the upper end surface of the support member, and the projecting portion extends from the shaft center in the extending direction. A second through hole is formed on the extension line and on the axial center side from the first through hole arranged in the circumferential direction of the upper wall, and allows the liquid to flow into the inner space side.

  A shower head according to claim 4 is the shower head according to any one of claims 1 to 3, wherein a plurality of sprinkling holes are formed to form a lower surface of the internal space and to spray the liquid supplied to the internal space to the outside. The support member is disposed at a substantially central portion of the water spray plate and projecting upward from the surface of the water spray plate, and the inflow member has the upper wall of the support member. The surface of the water spray plate and the upper wall are arranged so as to be substantially parallel with each other being supported from below.

  The shower device according to claim 5 is provided with a shower head having an outer shape formed in a substantially flat plate shape, mixing the liquid supplied to the internal space and the atmosphere and sprinkling water to the outside, and the shower head has a substantially cylindrical shape. A plurality of first through holes are formed side by side in the circumferential direction of the upper wall, and the upper wall covers the upper surface of the outer peripheral wall. An inflow member and an upper wall that is an inner portion of a region surrounded by a plurality of first through holes formed in the upper wall of the inflow member, and the atmosphere supplied into the internal space is A support member having an introduction path to be introduced inside the outer peripheral wall of the inflow member; and a liquid that is formed between the support member and the outer peripheral wall of the inflow member and that flows in through the first through hole of the inflow member. A flow path that flows into the space, and the support The air introduced into the outer peripheral wall of the inflow member from the material introduction path flows into the flow path together with the liquid flowing in from the plurality of first through holes of the inflow member, and the plurality of first of the inflow member. The through hole is configured to include the inner peripheral surface of the outer peripheral wall in a part of the outer periphery of each first through hole.

  According to the shower head of the first aspect, the inflow member has an outer peripheral wall formed in a cylindrical shape and an upper wall that covers an upper surface of the outer peripheral wall, and a plurality of second inflowing liquids into the inner space side. One through hole is formed side by side in the circumferential direction of the upper wall, and the upper wall serving as the inner portion of the region surrounded by the first through hole is supported by the support member from below. The support member has an introduction path for introducing the air supplied to the internal space into the outer peripheral wall of the inflow member. A flow path is formed between the support member and the outer peripheral wall of the inflow member so that the liquid flowing from the first through hole of the inflow member flows into the internal space. The air introduced into the outer peripheral wall of the inflow member from the introduction path flows along with the liquid introduced from the plurality of first through holes of the inflow member. Therefore, the liquid flowing through the flow path and the atmosphere are mixed and flow into the internal space, and the liquid in which the atmosphere is mixed is sprinkled from the internal space to the outside.

  Here, if there is a distance between the first through hole formed side by side in the circumferential direction of the upper wall and the inside of the outer peripheral wall, as described above, the atmosphere is introduced into the space on the outer peripheral wall side from the first through hole. Since the atmosphere comes into contact with only the surface on the axial center side of the liquid flowing in from the first through hole, the amount of the atmosphere mixed with the liquid is reduced, and the feeling of bathing felt by the user is lowered.

  However, according to claim 1, the plurality of first through holes formed side by side in the circumferential direction of the upper wall of the inflow member are arranged on the inner surface of the upper wall at a part of the outer periphery of each first through hole. Since it is comprised including the inner peripheral surface of a wall, a 1st through-hole is formed along the inner peripheral surface of an outer peripheral wall. Therefore, since a space where no air is introduced is not formed between the first through hole and the inner peripheral surface of the outer peripheral wall, the air contacts most of the surface of the liquid flowing in from the first through hole. Accordingly, since the amount of air flowing along with the liquid flowing in from the first through-hole increases, the amount of air contained in the liquid also increases, improving the comfort of the user when the user showers with the sprayed water. There is an effect that can be done.

  According to the shower head of the second aspect, in addition to the effect of the shower head according to the first aspect, the plurality of first through holes have a shortest distance between the adjacent first through holes of the first through hole. A liquid film is formed between the inner peripheral surface of the outer peripheral wall and each first through hole in a state in which the liquid is continuously flowed in from the first through hole. Accordingly, the first through holes arranged in the circumferential direction are connected by the liquid film, and the liquid film is formed on the entire circumference of the connecting portion between the surface supported by the support member on the upper wall and the inner peripheral surface of the outer peripheral wall. Therefore, the area of the liquid that comes into contact with the atmosphere introduced from the introduction path of the support member is further increased. Accordingly, if the area where the liquid and the atmosphere come into contact increases, the amount of air flowing along with the liquid flowing in from the first through-hole increases, so the amount of air contained in the liquid further increases and the shower is sprinkled. There is an effect that it is possible to further improve the feeling of bathing when the user bathes water.

  According to the shower head of the third aspect, in addition to the effect of the shower head according to the first or second aspect, the inflow member projects downward from the surface of the upper wall supported by the support member. The projection is formed to extend in at least three different directions from the axial center of the upper wall toward the radially outer side, and is provided with a projecting portion that comes into contact with the upper end surface of the support member. A second through hole for allowing liquid to flow into the internal space is formed on the axial center side from the first through hole arranged on the extension line in the extending direction and in the circumferential direction of the upper wall.

  The projecting portion extends in at least three different directions and is in contact with the upper end surface of the support member, so that the projecting portion provides a space between the upper end surface of the support member and the upper wall of the inflow member. That is, a passage through which the atmosphere passes is formed. That is, since the air introduced from the introduction path of the support member flows into the outer peripheral wall of the inflow member from between the upper end surface of the support member and the respective protrusions, the flow of air flows from the shaft center to the protrusions. The flow is along the extending direction. Therefore, when the atmosphere is introduced from the introduction path of the support member, the region on the extension line in the extending direction of the projecting portion is a region that does not significantly affect the introduction of the atmosphere.

  Here, when increasing the amount of air mixed with the liquid, it is sufficient to increase the flow rate so that more air and liquid are in contact with each other, so that more liquid flows in a predetermined time. In this case, since the opening area of the first through hole is reduced in proportion to the flow rate, the flow rate is increased but the flow rate cannot be secured. In addition, a plurality of through holes may be formed inside the first through hole. However, in this case, since the introduction route of the atmosphere is reduced, the introduction of the atmosphere is hindered. That is, it is very difficult to adjust the amount of air mixed with the liquid, particularly in a configuration including small parts such as a shower head.

  However, according to the third aspect, since the second through hole is formed on the extension line in the extending direction of the protruding portion, which is a region that does not affect the introduction of the atmosphere, the introduction of the atmosphere is hindered. While suppressing the above, it is possible to ensure a predetermined flow rate and to easily adjust the amount of the atmosphere mixed with the liquid.

  According to the shower head of the fourth aspect, in addition to the effect of the shower head according to any one of the first to third aspects, the water spray plate that forms the lower surface of the internal space to which the liquid and the atmosphere are supplied includes: A plurality of sprinkling holes for sprinkling liquid supplied to the internal space to the outside are formed. In addition, a support member is disposed in a substantially central portion of the water spray plate so as to protrude upward from the surface of the water spray plate, and an inflow member whose upper wall is supported from below by the support member includes the surface and the upper wall of the water spray plate. Are arranged so as to be substantially parallel. Therefore, the liquid flowing into the internal space from the first through hole of the inflow member collides with the surface of the water spray plate, and then flows to the outside in the radial direction of the water spray plate, and then flows from the water spray hole formed in the water spray plate to the outside. Watered.

  Here, the liquid flowing into the internal space from the first through hole of the inflow member and the air flowing together with the liquid are mixed when colliding with the surface of the water spray plate to become foam water, and the water spray hole of the water spray plate Watered from. Moreover, since a support member and an inflow member are arrange | positioned in the approximate center part of a water spray plate, foam water will flow from the approximate center part of a water spray plate to the radial direction outer side substantially equally. Therefore, since the foam water can be sprinkled from the plurality of water spray holes of the water spray plate, there is an effect that it is possible to improve the comfort that the user feels when taking shower water.

  The shower device according to claim 5 includes a shower head having an inflow member, a support member, and a flow path, and the inflow member covers a cylindrical outer peripheral wall and an upper surface of the outer peripheral wall. A plurality of first through holes that are arranged in the circumferential direction of the upper wall, and an upper wall serving as an inner portion of a region surrounded by the first through holes is provided. It is supported by the support member from below. The support member has an introduction path for introducing the air supplied to the internal space into the outer peripheral wall of the inflow member. A flow path is formed between the support member and the outer peripheral wall of the inflow member so that the liquid flowing from the first through hole of the inflow member flows into the internal space. The air introduced into the outer peripheral wall of the inflow member from the introduction path flows along with the liquid introduced from the plurality of first through holes of the inflow member. Therefore, the liquid flowing through the flow path and the atmosphere are mixed and flow into the internal space, and the liquid in which the atmosphere is mixed is sprinkled from the internal space to the outside.

  Here, if there is a distance between the first through hole formed side by side in the circumferential direction of the upper wall and the inside of the outer peripheral wall, as described above, the atmosphere is introduced into the space on the outer peripheral wall side from the first through hole. Since the atmosphere comes into contact with only the surface on the axial center side of the liquid flowing in from the first through hole, the amount of the atmosphere mixed with the liquid is reduced, and the feeling of bathing felt by the user is lowered.

  However, according to claim 1, the plurality of first through holes formed side by side in the circumferential direction of the upper wall of the inflow member are arranged on the inner surface of the upper wall at a part of the outer periphery of each first through hole. Since it is comprised including the inner peripheral surface of a wall, a 1st through-hole is formed along the inner peripheral surface of an outer peripheral wall. Therefore, since a space where no air is introduced is not formed between the first through hole and the inner peripheral surface of the outer peripheral wall, the air contacts most of the surface of the liquid flowing in from the first through hole. Accordingly, since the amount of air flowing along with the liquid flowing in from the first through-hole increases, the amount of air contained in the liquid also increases, improving the comfort of the user when the user showers with the sprayed water. There is an effect that it is possible to provide a shower device having a shower head that can be used.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. This embodiment is a shower head attached to the uppermost part of the shower apparatus 10, increases the amount of air (atmosphere) mixed with shower water sprayed to the outside, and the shower water (foam water) to be sprinkled. This relates to the overhead shower water discharger 18 that can improve the feeling of bathing when the user bathes.

  First, the outline of the shower apparatus 10 will be described with reference to FIG. FIG. 1 is a front view of a shower apparatus 10 including an overhead shower water discharger 18 according to an embodiment of the present invention and an enlarged view of various operation units 44, 46, 48, and 50. In FIG. 1, an arrow X indicates the vertical direction of the shower device 10, and an arrow Y indicates the left and right (width) direction of the shower device 10.

  As shown in FIG. 1, the surface of the shower device 10 is covered with a vertically long box-like case 12 installed on a wall surface (not shown) of a bathroom. The case 12 includes a case main body 14 that covers an upper surface, a lower surface, a side surface, and a rear surface, and a front cover 16 that covers a front surface.

  In addition, the shower apparatus 10 of this embodiment is arrange | positioned predetermined distance upwards from the floor surface (horizontal surface) of a bathroom, and the vertical direction (FIG. 1 arrow X direction) dimension from the lower end to the upper end of case 12 is formed in about 1700 mm. ing. Therefore, the upper end of the shower device 10 is located near the ceiling of the bathroom because the height from the floor surface is 1700 mm or more.

  The shower apparatus 10 mainly includes an overhead shower (hereinafter abbreviated as “OH shower”) water discharger 18 provided at the upper end of the front cover 16 and a body shower (hereinafter referred to as “B shower”) provided in the middle stage of the front cover 16. And a water shower 20 provided at the lower end of the case 12, and a hand shower (hereinafter abbreviated as “H shower”) provided on the side of the case 12 (left side in the direction of arrow Y in FIG. 1). The water discharge part 24 and the various operation parts 44, 46, 48, 50 which adjust water discharge amount, water temperature, etc. are provided.

  The OH shower water spouting unit 18 sprays shower water (not mist-like) downward from the head toward the user, and a pipe 30 (FIG. 2) extending substantially horizontally forward from the front cover 16. And a substantially disc-shaped shower head 31 attached to the tip of the pipe 30. The OH shower discharge unit 18 is attached such that the lower surface of the shower head 31 is inclined downward from the near side to the far side.

  The B shower water discharger 20 is provided in a plurality of rows in the left-right direction of the shower device 10 (the arrow Y direction in FIG. 1) and in a plurality of locations in the vertical direction of the shower device 10 (the arrow X direction in FIG. 1). In the present embodiment, a total of ten water discharge portions are provided in two rows in the left-right direction and five in the vertical direction. Specifically, the B shower water discharger 20a1, 20b1 is provided at the top, and the B shower water discharger 20a2, 20b2, 20a3, 20b3, 20a4, 20b4, 20a5, 20b5 is provided in the downward direction. Yes.

  The B shower water discharger 20 sprays a mist-shaped shower toward the front (front side in FIG. 1) at a position lower than the user's head, and the B shower water discharger 20a1 and 20b1 A shower of mist is sprayed on the chest, B shower water discharger 20a2-20a4, 20b2-20b4 sprays a mist shower around the user's waist, and B shower water discharger 20a5, 20b5 A mist-like shower is sprayed on the foot of the doll.

  The water discharge pipe 22 is attached to the lower end of the case 12 so as to be rotatable in the horizontal direction, and is mainly used in a state where the user is sitting at the washing place. Further, a water outlet 34 is provided at the tip, and the water discharged from the water outlet 34 is discharged downward with one DC bundle.

  The H shower water discharger 24 is connected to an elbow-shaped joint 42 that can be rotated in the vertical direction on the side surface of the case 12 via a shower hose 26, and a grip 36 and a head 38 are connected to the tip of the shower hose 26. And are connected.

  A water spray plate is attached to the lower surface of the head 38 of the H shower water discharger 24, and a plurality of shower holes 40 are provided in a distributed manner on the water spray plate, and shower water is jetted from the shower holes 40. The H shower water discharger 24 is detachably hooked by a shower hook 28 provided on the side surface of the case 12 (left side surface in the direction of arrow Y in FIG. 1).

  The operation unit 44 is an operation unit for the OH shower water spouting unit 18, and as shown in the enlarged view, an instruction unit 52 that indicates the position of the display unit provided around the operation unit is provided. The operation unit 44 is configured to be switchable between three positions, a shower water discharge state, a shower water stop state, and a temperature confirmation position, and is configured to be able to adjust the flow rate according to the rotation angle.

  The operation unit 46 is an operation unit for the B shower water discharge unit 24, and as shown in the enlarged view, an instruction unit 54 that indicates the insertion position of the display unit provided around the operation unit is provided. The operation unit 46 is configured to be switchable to three positions of a shower water discharge state, a shower water stop state, and a temperature confirmation position, and is configured to be able to adjust a flow rate according to a rotation angle.

  The operation unit 48 is an operation unit for adjusting the temperature of the mixed water of hot water and cold water. As shown in the enlarged view, the operation unit 48 is provided with an instruction unit 56 indicating the insertion position of the display unit provided around the operation unit. Yes. The operation unit 50 is an operation unit that switches water discharge between the water discharge pipe 22 and the H shower water discharge unit 24. As shown in the enlarged view, the operation unit 50 is provided with an instruction unit 58 that indicates the insertion position of the display unit provided around the operation unit. It has been. The operation unit 50 is configured to be able to adjust the flow rate according to the rotation angle.

  Next, the OH shower water discharger 18 will be described in detail with reference to FIGS. First, with reference to FIG. 2, the external appearance of the OH shower water discharging part 18 is demonstrated. FIG. 2 is a side view showing the appearance of the OH shower water discharger 18. In FIG. 2, only a connection portion between the shower head 31 and the pipe 30 is shown in a sectional view. Further, in FIG. 2, an arrow X indicates the vertical direction of the shower device 10, and an arrow Z indicates the depth direction of the shower device 10.

  As shown in FIG. 2, the shower head 31 of the OH shower water spouting unit 18 is provided on a pipe 30 extending substantially horizontally from the front cover 16 (see FIG. 1) of the case 12 to the front (leftward in the direction of arrow Z in FIG. 2). On the other hand, they are connected with an inclination of about 30 degrees. Therefore, the lower surface of the shower head 31 faces the front side of the shower device 10, and as a result, the shower can be sprinkled throughout the user.

  The shower head 31 is formed in a thin disk shape. This is because the pressure of the water flowing into the shower head 31 is increased by forming it in the shape of a thin disk, and the momentum of the water sprayed from the shower head 31 is maintained.

  Further, the shower head 31 is connected via a ball joint 33 to a pipe 30 extending almost horizontally forward from the front cover 16 (see FIG. 1). The ball joint 33 makes it possible to change the vertical and horizontal tilt angles of the shower head 31. In the present embodiment, the tilt angle can be changed within a range of 10 degrees in the upper and lower directions (arrow X direction in FIG. 2) and 10 degrees in the left and right direction (arrow Y direction in FIG. 1).

  An O-ring 34 is disposed on the contact surface between the outer surface of the ball joint 33 and the shower head 31 side. Therefore, even if the inclination angle of the shower head 31 is changed, it is possible to prevent water leakage from the connecting portion between the outer surface of the ball joint 33 and the shower head 31.

  Next, with reference to FIG. 3, various parts constituting the shower head 31 of the OH shower water spouting unit 18 will be described. FIG. 3 is an exploded perspective view of various components constituting the shower head 31 of the OH shower water discharger 18.

  As shown in FIG. 3, the OH shower water discharger 18 includes a decorative ring 61 that covers the side surface, a decorative plate 62 that covers the lower surface, a lower plate 63 disposed on the upper portion of the decorative plate 62, and an upper portion of the lower plate 63. An intermediate layer 64 disposed on the upper surface of the intermediate layer 64, a water spray plate 65 disposed on the upper portion of the intermediate layer 64, a lid 66 forming a side surface and an upper surface, and a joint 67 into which the ball joint 33 (see FIG. 2) is inserted. An inflow member 68 that is disposed between the joint 67 (that is, the lid body 66 in which the joint 67 is inserted) and the water spray plate 65 and flows in (supplies) water into the internal space X (see FIG. 6), and the joint 67. And a screw 70 for screwing the lower plate 63 and the lid body 66 together.

  The decorative ring 61 and the decorative plate 62 decorate the appearance of the shower head 31 and are made of a resin material, a stainless material, or the like. The decorative plate 62 is provided with a plurality of water holes 71.

  The lower plate 63 positions the intermediate layer 64 and the water spray plate 65 and supports the intermediate layer 64 and the water spray plate 65 from below, and is made of a resin material or the like. The lower plate 63 has a plurality of sprinkling holes 73 into which lower projections 77 of an intermediate layer 64 described later are fitted, and a screw projection 74 that projects upward (upward in FIG. 3) and is screwed with a screw 70. And a support portion 75 that protrudes upward (upward in FIG. 3) and is provided substantially at the center (position passing through the axis) and supports the upper wall 111 (see FIG. 4) of the inflow member 68 from below. It has been. The support portion 75 is formed in a hollow shape, and acts as an introduction path 75b (see FIG. 5B) for introducing air into the internal space X and the flow path 115 (see FIG. 5B).

  The intermediate layer 64 forms a flow path of water to be sprinkled, and is made of an elastic material such as rubber. In the intermediate layer 64, a plurality of lower protrusions 77 that are inserted through the water spray holes 73 of the lower plate 63 and protrude downward (downward in FIG. 3), and are formed through the lower protrusions 77 to form a water flow path. Sprinkling channel 78, through hole 79 through which screw projection 74 of lower plate 63 is inserted, through hole 80 through which central projection 75 of lower plate 63 is inserted, and positioning projection which is an upper projection A protrusion 81 is provided.

  The water spray plate 65 forms the lower surface (bottom surface) of the internal space X that stores water between the surface 65a and the lid body 66, and is made of a resin material such as plastic. The water spray plate 65 is inserted with a water spray hole 83 communicating with the water spray channel 78 of the intermediate layer 64, a through hole 84 through which the screw protrusion 74 of the lower plate 63 is inserted, and an upper protrusion 81 of the intermediate layer 64. And a central insertion portion 86 through which the support portion 75 of the lower plate 63 is inserted.

  The lid 66 accommodates the lower plate 63, the intermediate layer 64, the water spray plate 65, a part of the joint 67, and the inflow member 68 inside, and is screwed into the inside of the decorative ring 61. It is made of resin material. Moreover, the cover body 66 forms the upper surface and side surface of the internal space X which stores water between the water sprinkling plates 65. The lid 66 has a through-hole through which only the shaft portion 70 a of the screw 70 can be inserted, a screw hole 88 formed of a counterbored portion that supports the head portion 70 b of the screw 70, and a through-hole through which a part of the joint 67 is inserted. A hole 89 is provided.

  The joint 67 is a portion connected to the pipe 30 side, and forms a flow path through which water supplied from the pipe 30 flows into the shower head 31 and is made of a metal material. The joint 67 includes a dish portion 91 that contacts the inner surface of the lid 66 downward (downward in FIG. 3) to prevent the joint 67 from coming off, and a cylindrical portion 92 into which the ball joint 33 is inserted. .

  The inflow member 68 flows the water supplied from the joint 67 into the internal space X formed between the water spray plate 65 and the lid body 66, and is made of a resin material such as plastic. The inflow member 68 is formed in a cylindrical shape whose lower surface (lower surface in FIG. 3) is open, and has a plurality of through holes 94 (first through holes in each claim) on the upper surface (the upper surface in FIG. 3). Is formed, and a protruding portion 95 protruding downward from the center of the upper surface is formed. The detailed structure of the inflow member 68 will be described later.

  When the shower head 31 is manufactured by assembling the various parts configured as described above, the through holes 79 and 80 of the intermediate layer 64 are inserted through the screw protrusions 74 and the support 75 of the lower plate 63, respectively. The lower projections 77 of the intermediate layer 64 are fitted into the water spray holes 73 of the lower plate 63, and the intermediate layer 64 is positioned and fixed with respect to the lower plate 63.

  Next, the upper protrusion 81 of the intermediate layer 64 is inserted into the through hole 85 of the water spray plate 65, and the central protrusion 75 of the lower plate 63 is inserted into the central insertion portion 86 of the water spray plate 65, so The watering plate 65 is fixed to the layer 64 while being positioned.

  And the protrusion part 95 of the inflow member 68 is inserted in the center insertion part 86 (support part 75 of the lower board 63) of the water spray board 65, the cover body 66 of the state which fixed the joint 67 with the nut 69 is covered, and screw 70, the lid 66 and the lower plate 63 are screwed together.

  Thereafter, the decorative plate 62 is set in the decorative ring 61, and a member in which the lower plate 63, the intermediate layer 64, the watering plate 65, the lid 66, the joint 67, and the inflow member 68 are integrally assembled is put in the decorative ring 61. The shower head 31 is completed by screwing.

  In addition, the water flowing in the OH shower water spouting portion 18 is, as indicated by an arrow A in FIG. 3, the inside of the pipe 30 (see FIG. 2), the inside of the ball joint 33 (see FIG. 2), the inside of the joint 67, The through hole 94 of the inflow member 68, the internal space X formed between the water spray plate 65 and the lid body 66, the water spray hole 83 of the water spray plate 65, the water spray channel 78 of the intermediate layer 64 (the water spray hole 73 of the lower plate 63). The water passes through the watering holes 71 of the decorative plate 62, and the water is sprinkled to the outside.

  Further, the water passing through the through hole 94 of the inflow member 68 flows into the upper surface of the water spray plate 65 while entraining the air supplied through the communication path of the support portion 75 of the lower plate 63. Foaming minute bubbles are generated in the vicinity of the central insertion portion 86 of the plate 65, and water containing the minute bubbles is sprinkled to the outside. In addition, it becomes light and smooth water, so that many microbubbles are contained, and it can produce | generate the water which is comfortable for a user.

  Moreover, the yield of a product can be improved by comprising the intermediate | middle layer 64 with a rubber-like elastic material. This is because, when the intermediate layer 64 is made of a hard member, precise placement positions of the lower protrusions 77 and the upper protrusions 81 are required. This is because the layer 64 is made of a rubber-like elastic material so that extremely precise accuracy is not required.

  Next, the structure of the inflow member 68 will be described in detail with reference to FIGS. 4 and 5. FIG. 4 is a perspective view showing the appearance of the inflow member 68. 5A is a bottom view of the inflow member 68 shown in FIG. 4 as viewed from the arrow B, and FIG. 5B is a cross-sectional view of the inflow member 68 taken along the line Vb-Vb in FIG. 5A. is there. In FIG. 5A, a part of the outer peripheral portion of the inflow member 68 is enlarged, and a water film formed on the outer peripheral portion is illustrated. In FIG. The support part 75 is illustrated by a virtual line (two-dot chain line).

  As shown in FIG. 4, the inflow member 68 has an outer shape formed by an outer peripheral wall 110 formed in a substantially cylindrical shape and an upper wall 111 that covers the upper surface (upper surface in FIG. 4) of the outer peripheral wall 110. . A plurality of through holes 94 are formed in the upper wall 111 side by side in the circumferential direction. Further, on the surface (hereinafter referred to as “inner side surface”) 111a supported by the support portion 75 of the upper wall 111, a protruding portion 95 protruding downward (lower side in FIG. 4) at a position passing through the axis O is provided. Is formed.

  The protruding portion 95 includes an extending portion 112 that extends radially outward from the axis O, and a shaft portion 113 that protrudes further downward from the outer peripheral wall 110 from the extending portion 112.

  The extending portion 112 includes four extending portions 112 extending radially outward from the axis O, and each extending portion 112 has a length that is approximately half the radius of the upper wall 111. Has been. Further, since the extended portions 112 are at an angle of approximately 90 degrees, as shown in FIG. 5A, the extended portions 112 have a cross shape in the bottom view of the inflow member 68.

  The shaft portion 113 is configured to be approximately half of the length from the axial center O of the extending portion 112 to the radially outer side. Like the extending portion 112, the shaft portion 113 has a cross shape in the bottom view of the inflow member 68. (See FIG. 5A).

  Further, the upper wall 111 has a flow rate adjusting hole (each claim) on the axis O side of the through hole 94 arranged in the extending direction from the axis O of the extending portion 112 in the extending direction and in the circumferential direction of the upper wall 111. The second through-hole 114) is formed. As shown in FIG. 5A, four flow rate adjusting holes 114 are formed corresponding to the four extending portions 112.

  As shown in FIG. 5A, the through holes 94 aligned in the circumferential direction of the upper wall 111 are formed along the outer peripheral wall 110 at equal intervals. Each through-hole 94 is configured to include the inner peripheral surface 110a of the outer peripheral wall 110 in a part of the outer periphery (for example, about 1/6 of the entire outer periphery) on the inner surface 111a of the upper wall 111. That is, the water that flows in from the through hole 94 flows downward along the inner peripheral surface 110 a of the outer peripheral wall 110. The interval between the through holes 94 in the circumferential direction is configured such that the shortest distance t between adjacent through holes 94 is shorter than the diameter of the through holes 94.

  In the inflow member 68 of this embodiment, the diameter of the outer peripheral wall 110 and the upper wall 111 is about 19 mm, the height of the outer peripheral wall 110 is about 5 mm, and the protruding portion 95 has a total length of about 8 mm, of which the extension is extended. The portion 112 is about 2 mm and the shaft portion 113 is about 6 mm. The through holes 94 and the flow rate adjusting holes 114 have a diameter of about 1 mm, and the shortest distance t between adjacent through holes 94 is about 0.5 mm.

  Next, with reference to FIG.5 (b), the positional relationship between the inflow member 68 in the state in which the shower head 31 was assembled | attached, and the support part 75 of the lower board 63, and the air introduction path | route are demonstrated.

  As shown in FIG. 5B, when the shower head 31 is assembled, the upper wall 111 of the inflow member 68 is supported from below by the upper end surface (upper outer peripheral surface) 75a of the support portion 75 of the lower plate 63. The Further, the inside of the support portion 75 of the lower plate 63 is an introduction path 75b for introducing air from the outside, and the shaft portion 113 is inserted into the introduction path 75b.

  Note that the maximum horizontal length of the shaft portion 113 (the total length of the two shaft portions 113 positioned on the straight line) is slightly shorter than the inner diameter of the support portion 75, and the shaft portion 113 of the inflow member 68 is formed on the lower plate. In the state inserted into the support portion 75 of 63, the movement in the horizontal direction (left and right direction in FIG. 5B) is restricted.

  The support of the inflow member 68 by the support portion 75 is specifically performed by bringing the upper end surface 75a of the support portion 75 into contact with the lower surface of the extending portion 112. Therefore, as shown by arrow C, the air passing through the introduction path 75b of the support portion 75 passes between the shaft portions 113 in the introduction path 75b of the support portion 75, and then the upper end surface 75a of the support portion 75 and each of the air. It passes between the extended portion 112 and is introduced inside the outer peripheral wall 110 of the inflow member 68.

  That is, the flow of air introduced from the support portion 75 passes between the shaft portions 113 and the extending portions 112, and thus flows along the extending direction from the axis O of the extending portion 112. Therefore, when air is introduced from the support portion 75, the region on the extension line in the extending direction of the extending portion 112 is a region that does not significantly affect the introduction of air.

  Here, when increasing the amount of air mixed with water, it is conceivable to increase the flow rate so that more air and water come into contact with each other so that more water flows in a predetermined time. . However, in this case, since the opening area of the through hole 94 becomes smaller in proportion to the flow velocity, the flow velocity is increased, but a sufficient amount of water cannot be secured. Further, a plurality of through holes may be formed between the extended portions 112 and inside the through holes 94. However, in this case, since the air introduction path is reduced, the introduction of air is hindered. turn into. That is, it is particularly difficult to adjust the amount of air mixed in water with a small component having a diameter of about 19 mm such as the inflow member 68.

  However, in the present embodiment, since the flow rate adjusting hole 114 is formed on the extended line from the axial center O of the extending portion 112 in the extending direction, which is a region that has little influence on the introduction of air, The flow rate of water can be increased while suppressing the hindrance to introduction, and the amount of water and the amount of air mixed in the water can be easily adjusted.

  That is, the flow rate adjusting hole 114 formed on the extension line from the axis O of the extending portion 112 in the extending direction has little influence on the introduction of air, so the size of the hole diameter depends on the desired flow rate. Since the number can be changed and the number thereof can be changed, the adjustment becomes easy.

  Here, a problem when the through hole 94 is formed inside the outer peripheral wall 110 will be described. If there is a distance between the through hole 94 and the outer peripheral wall 110, when water continuously flows from the through hole 94, a water wall is formed in the circumferential direction by the water flowing from the through hole 94. The space on the support portion 75 side and the space on the outer peripheral wall 110 side are separated by the water wall. For this reason, since it becomes difficult for air to be introduced into the space on the outer peripheral wall 110 side, a negative pressure will eventually be generated, and new air will not be introduced, and most of the air introduced from the support portion 75 will be removed from the through hole 94. It contacts only the portion of the water that flows in that faces the support portion 75 side. Therefore, since the air which contacts the water flowing in from the through-hole 94 decreases, the air flowing while being caught in the water also decreases, and the amount of air mixed into the water becomes insufficient. Therefore, in the configuration in which the through hole 94 is formed on the inner side of the outer peripheral wall 110, the feeling of bathing felt by the user who has showered the shower water sprayed from the shower head 31 is reduced.

  Therefore, in the present embodiment, the through hole 94 is formed in the circumferential direction along the outer peripheral wall 110, and the water wall formed by the water flowing from the through hole 94 does not form a space in which air is difficult to be introduced. I have to. As a result, air contacts most of the surface of the water flowing in from the through hole 94, so that the amount of air flowing together with the water flowing in from the through hole 94 increases, and the amount of air contained in the water also increases. It is possible to improve the feeling of bathing when the user takes shower water to be sprayed.

  In addition, since a part of the outer periphery of the through hole 94 is formed by the inner peripheral surface of the outer peripheral wall 110, a part of the water flowing in from the through hole 94 flows downward along the inner peripheral surface of the outer peripheral wall 110. . At this time, since the intervals between the through holes 94 are configured to be short, as shown in the enlarged view of FIG. 5A, water is formed between the through holes 94 and the inner peripheral surface of the outer peripheral wall 110. A film W is formed. Since the water film W is formed, a surface in contact with air is formed separately from the surface of the water flowing in from the through hole 94, so that much air and water are in contact with each other.

  When water continuously flows from the through-hole 94, the water film W formed on the inner peripheral surface of the outer peripheral wall 110 also flows downward, but the water film W is formed by new water. While the inflow of water from the through hole 94 continues, the water film W is continuously formed.

  Therefore, a part of the outer periphery of the through-hole 94 is configured by the inner peripheral surface of the outer peripheral wall 110, and a water film W is formed on the inner peripheral surface of the outer peripheral wall 110, so that a large amount of air is absorbed by water. In contact with the water, air flows into the internal space X, and shower water in which the amount of air contained in the water is further increased can be sprinkled. Accordingly, it is possible to further improve the feeling of bathing when the user takes shower water to be sprinkled.

  Next, a process of generating shower water in which the amount of air contained in water increases will be described. Water that passes through the inside of the pipe 30 (see FIG. 2) and is supplied into the joint 67 (see FIG. 3) accumulates in the upper region of the inflow member 68, and then flows in from the through-hole 94 downward. . Therefore, the flow path 115 (see FIG. 5B) formed between the outer peripheral wall 110 of the inflow member 68 and the support portion 75 passes vigorously. The water that has passed through the through hole 94 flows into the internal space X (see FIG. 6) through the flow path 115.

  At this time, the air supplied in the flow indicated by the arrow C in FIG. 5B is entrained in the water that flows in vigorously from the through hole 94 and flows into the internal space X together with the water. Moreover, since the air which flowed with water collides with the upper surface of the watering board 65 (refer FIG. 3) vigorously as mentioned above, water and air are mixed while water flows. The flow of this water will be described with reference to FIG.

  FIG. 6 is an enlarged cross-sectional view showing a part near the axis O of the shower head 31. In FIG. 6, the decorative ring 61 and the nut 69 are not shown.

  As shown in FIG. 6, the water accumulated between the joint 67 and the inflow member 68 passes through the through hole 94 and the flow rate adjustment hole 114, and the upper wall 111 and the outer peripheral wall 110 of the inflow member 68, and the support portion 75. (Indicated by arrow A1).

  As described above, the water that has flowed into the flow path 115 from the through hole 94 and the flow rate adjustment hole 114 has the internal space together with the air introduced from the introduction path 75b (air introduced by the path indicated by the arrow C). It flows in the X direction (flow of water indicated by arrow A2).

  The upper wall 111 of the inflow member 68 and the surface 65a of the water spray plate 65 are arranged substantially in parallel, and the diameter of the through hole 94 and the flow rate adjustment hole 114 of the inflow member 68 is about 1 mm as described above. Since it has a very small hole diameter, the water that passes through the through hole 94 and the flow rate adjusting hole 114 and flows into the internal space X collides with the surface 65a of the water spray plate 65 vigorously.

  When the water that has passed through the through-hole 94 and the flow rate adjusting hole 114 collides with the surface 65a of the water spray plate 65 vigorously, the water and the air that has flowed together with the water are mixed, and foam water containing a large amount of air is generated. . The foamed water is sprinkled to the outside through a plurality of sprinkling holes 83 formed in the sprinkling plate 65 while flowing radially outward from the axis O of the shower head 31 (flow of water indicated by arrow A3).

  Therefore, since the foamy water containing a lot of air is sprayed to the outside evenly from the sprinkling holes 83 formed in the sprinkling plate 65, it is possible to further increase the comfort that the user feels when the shower water is sprayed. Can be improved.

  Next, the inflow member 68 of 2nd and 3rd embodiment is demonstrated with reference to FIG. FIG. 7A is a view showing a part of the vicinity of the outer peripheral wall 110 of the inflow member 68 of the second embodiment, and FIG. 7B is the vicinity of the outer peripheral wall 110 of the inflow member 68 of the third embodiment. It is the figure which showed a part of. FIGS. 7A and 7B show portions corresponding to the enlarged view of FIG. 5A.

  As shown in FIG. 7A, in the inflow member 68 of the second embodiment, the outer periphery of the opening of the through hole 194 in the inner surface 111a of the upper wall 111 and the inner peripheral surface 110a of the outer peripheral wall 110 are in contact with each other at a point. ing. On the other hand, in FIG. 7B, half of the outer periphery of the opening of the through hole 294 in the inner surface 111 a of the upper wall 111 is constituted by the inner peripheral surface 110 a of the outer peripheral wall 110.

  In this way, the outer periphery of the opening of the through hole 194 and the inner peripheral surface 110a of the outer peripheral wall 110 are in contact with each other at a point, and half of the outer periphery of the opening of the through hole 294 is the inner peripheral surface 110a of the outer peripheral wall 110. Even in the configured state, the membrane w is formed so as to connect the through holes 194 and 294, the area of water in contact with the air is increased, and foam water containing a large amount of air can be generated.

  In the outer periphery of the opening of the through hole, the ratio of the inner peripheral surface 110a of the outer peripheral wall 110 is half as shown in FIG. 7 (b), as shown in FIG. If it is between the range which occupies, it is good also as what changes suitably according to the quantity etc. of the water which flows out out of a through-hole.

  The present invention has been described above based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed.

  For example, in the above-described embodiment, the extending portion 112 and the shaft portion 113 are configured by four. However, since the inflow member 68 only needs to be stably supported by the upper end surface of the support portion 75, at least three are provided. What is necessary is just the above structure. In addition, it is more preferable that the angle of each extension part 112 is comprised at equal intervals, for example, if the extension part 112 is comprised by three, the angle of each extension part 112 will be 120 degree | times.

  Moreover, in the said embodiment, although the cover body 66 was comprised so that the side surface and upper surface of the internal space X of the shower head 31 might be formed, the cover body 66 is comprised in flat form and the bottom face of the internal space X with the water spray plate 65. The lid body 66 and the water spray plate 65 may be formed in a flat plate shape, and a side wall that covers the outer peripheral side surface may be provided as a separate body.

It is a front view of a shower apparatus provided with the overhead shower water discharging part of one Embodiment of this invention, and an enlarged view of various operation parts. It is the side view which showed the external appearance of the overhead shower water discharging part. It is a disassembled perspective view of the various components which comprise the shower head of OH shower water discharging part. It is the perspective view which showed the external appearance of the inflow member. (A) is a bottom view of the inflow member shown by arrow B in FIG. 4, and (b) is a cross-sectional view of the inflow member taken along line Vb-Vb in FIG. 5 (a). It is sectional drawing which expanded and showed a part of shaft center vicinity of a shower head. (A) is the figure which showed a part of outer peripheral wall vicinity of the inflow member of 2nd Embodiment, (b) is the figure which showed a part of outer peripheral wall vicinity of the inflow member of 3rd Embodiment. is there.

Explanation of symbols

10 Shower unit 31 Shower head 61 Cosmetic ring (part of shower head)
62 Decorative plate (part of shower head)
63 Lower plate (part of shower head)
64 Middle layer (part of shower head)
65 Watering board (part of shower head)
65a Sprinkling plate surface 66 Lid (part of shower head, side wall)
67 Joint (part of shower head)
68 Inflow member (part of shower head)
69 Nut (part of shower head)
70 screws (part of shower head)
75 Supporting part (supporting member)
75a Upper end surface of support part (upper end surface of support member)
75b Introduction path 94, 194, 294 Through hole (first through hole)
110 outer peripheral wall 110a inner peripheral surface 111 of outer peripheral wall upper wall 111a inner side surface 112 of upper wall
113 Shaft (part of protrusion)
114 Flow rate adjusting hole (second through hole)
115 Flow path A, A1 to A3 Water flow C Air flow O Axial center W Water film t Shortest distance between adjacent through holes 94

Claims (5)

In the shower head that the outer shape is formed in a substantially flat plate shape, the liquid supplied to the internal space and the atmosphere are mixed and sprinkled to the outside,
A plurality of first through holes that have an outer peripheral wall formed in a substantially cylindrical shape and an upper wall that covers an upper surface of the outer peripheral wall and that allow liquid to flow into the inner space side are arranged in the circumferential direction of the upper wall. An inflow member to be formed;
The upper wall serving as the inner portion of the region surrounded by the plurality of first through holes formed on the upper wall of the inflow member is supported from below, and the air supplied into the inner space is supported by the outer peripheral wall of the inflow member A support member having an introduction path to be introduced inside;
A flow path that is formed between the support member and the outer peripheral wall of the inflow member, and that flows the liquid flowing in from the first through hole of the inflow member into the internal space;
The atmosphere introduced into the outer peripheral wall of the inflow member from the introduction path of the support member is flowed to the flow path together with the liquid flowing in from the plurality of first through holes of the inflow member,
The plurality of first through holes of the inflow member are configured to include an inner peripheral surface of the outer peripheral wall in a part of an outer periphery of each first through hole. The plurality of first through holes of the inflow member are configured such that the shortest distance between adjacent first through holes is equal to or less than the diameter of the first through holes,
The liquid film is formed between an inner peripheral surface of the outer peripheral wall and each first through hole in a state where liquid is continuously flowing from the first through hole. The shower head according to 1. The inflow member is
Projecting downward from the surface of the upper wall supported by the support member and extending in at least three different directions from the axial center of the upper wall toward the radially outer side, the support A protrusion that abuts the upper end surface of the member;
A second portion of the projecting portion formed on the axial center side from the first through-hole aligned in the extending direction from the shaft center in the extending direction and in the circumferential direction of the upper wall, and allows the liquid to flow into the inner space side. The shower head according to claim 1, further comprising a through hole. Forming a lower surface of the internal space, comprising a watering plate in which a plurality of watering holes for watering the liquid supplied to the internal space are formed;
The support member is disposed at a substantially central portion of the watering plate and projecting upward from the surface of the watering plate,
The said inflow member is arrange | positioned so that the surface and upper wall of the said watering board may become substantially parallel in the state by which the said upper wall was supported by the said supporting member from the downward direction. 4. The shower head according to any one of 3. In the shower device provided with a shower head whose outer shape is formed in a substantially flat plate shape and mixes the liquid supplied to the internal space and the atmosphere and sprinkles the outside,
The shower head is
A plurality of first through holes that have an outer peripheral wall formed in a substantially cylindrical shape and an upper wall that covers an upper surface of the outer peripheral wall and that allow liquid to flow into the inner space side are arranged in the circumferential direction of the upper wall. An inflow member to be formed;
The upper wall serving as the inner portion of the region surrounded by the plurality of first through holes formed on the upper wall of the inflow member is supported from below, and the air supplied into the inner space is supported by the outer peripheral wall of the inflow member A support member having an introduction path to be introduced inside;
A flow path that is formed between the support member and the outer peripheral wall of the inflow member, and that flows the liquid flowing in from the first through hole of the inflow member into the internal space;
The atmosphere introduced from the introduction path of the support member to the inside of the outer peripheral wall of the inflow member flows into the flow path together with the liquid flowing in from the plurality of first through holes of the inflow member,
The plurality of first through holes of the inflow member are configured to include the inner peripheral surface of the outer peripheral wall in a part of the outer periphery of each first through hole.

Images