JP2013106895A - Shower head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shower head whereby the strength of a spout flow and a spout range can be freely set.SOLUTION: The shower head (1) includes: a water spouting plate (20) disposed at a terminal end of a water supply channel and bored with a plurality of water passage holes (24a) (24b) (24c) (24d) (24e) for making the supplied fluid pass; and a plurality of nozzles (30a) (30b) (30c) (30d) (30e) detachably attached to the water passage holes (24a) (24b) (24c) (24d) (24e) of the water-spouting plate (20), respectively, and communicating with the water passage holes (24a) (24b) (24c) (24d) (24e) on a base end side.

Description

  The present invention relates to a shower head that is attached to the end of a water supply channel and supplies and discharges water or a mixed fluid obtained by mixing water and compressed air.

  The shower head generally has a water discharge plate with a large number of discharge holes fixed at the end of the water supply channel. In these shower heads, various forms of discharge holes and nozzles have been proposed for the purpose of droplet formation due to collision of two discharge flows, prevention of dripping when water stops, and concentration of multiple discharge flows. (See Patent Documents 1 to 4).

Special table 2007-500595 gazette JP 2010-227181 A JP 2001-50857 A JP 2007-326082 A

  The shower discharge flow has a suitable strength depending on the cleaning site, and in addition, each person has a strength that feels comfortable. In addition, a shower head capable of effectively and comfortably washing the whole body is required for body washing of bedridden patients.

  However, since the strength of the discharge flow and the discharge range cannot be changed with the conventional shower head, a single shower head cannot cope with various cleaning operations.

  In view of the above-described technical background, the present invention provides a shower head capable of freely setting the strength of the discharge flow and the discharge range.

  That is, this invention has the structure as described in following [1]-[5].

[1] A water discharge plate disposed at the end of the water supply channel and having a plurality of water passage holes through which the supplied fluid passes.
A shower head comprising: a plurality of nozzles that are detachably attached to the water flow holes of the water discharge plate and communicate with the water flow holes on the base end side.

  [2] The shower head according to item 1, wherein the plurality of nozzles are attached to the water passage holes so that a plurality of discharge flows discharged from these nozzles are converged.

  [3] The shower head according to item 1 or 2, wherein the plurality of nozzles are arranged on a plurality of concentric circles, and a plurality of focusing points are formed.

  [4] It is attached to the outer peripheral side of the water discharge plate so as to be able to advance and retreat in parallel with the outer peripheral surface of the water discharge plate, and is located forward of the tip of the nozzle at the most advanced position, and the distance between the nozzle and the object to be cleaned is 4. The shower head according to any one of items 1 to 3, further comprising a regulating member for regulating.

  [5] The shower head according to any one of items 1 to 4, wherein the fluid is a mixed fluid in which water and compressed air are mixed.

  According to the invention described in [1] above, the water discharge plate has a plurality of water passage holes, and the nozzles are detachable with respect to each water passage hole. Depending on the arrangement, the shape of the nozzle, and combinations thereof, discharge flows having different strengths and discharge fluxes having different cross-sectional areas can be obtained. For this reason, the discharge flux with a strong and large cross-sectional area is used for hair washing, the discharge flux with a weak and large cross-sectional area is used for face washing and body washing, the discharge flux with a weak and small cross-sectional area is used for genital washing, etc. The shower head can be used for various types of cleaning.

  According to the invention described in [2] above, a discharge flux that is strong and has a small cross-sectional area can be obtained by focusing the discharge flow.

  According to the invention described in [3] above, the discharge flow converges at a plurality of points, and the cross-sectional area of the discharge flow at each convergence point increases as the distance from the nozzle increases, and decreases as the distance from the nozzle increases. Further, after passing through each focusing point, the discharge flux diffuses, and the cross-sectional area becomes large and weakens. That is, the strength and cross-sectional area of the discharge flux change on one line. Then, by changing the distance from the nozzle to the object to be cleaned, it is possible to perform cleaning with discharge flows having different strengths and cleaning ranges.

  According to the invention described in [4] above, by moving the regulating member forward and backward, it is possible to perform washing while regulating the shortest distance from the washing target to the nozzle, and the nozzle of the shower head is separated from the washing target. Can be kept stable in position. As a result, the strength and area of the discharge flow poured into the object to be cleaned can be kept constant.

  According to the invention described in [5] above, when the fluid mixture of water and compressed air is discharged from the nozzle, the water becomes fine particles and a mist flow is formed.

It is a perspective view which shows one Example of the shower head of this invention. It is the side view which looked at the shower head of FIG. 1 from the front end side of the housing. It is the sectional view on the AA line of FIG. It is the elements on larger scale of the water discharging plate with which the nozzle was mounted | worn. It is the elements on larger scale of the water discharging plate which removed the nozzle. It is the elements on larger scale of the water discharging plate which attached the obstruction | occlusion stopper instead of the nozzle. FIG. 3 is a cross-sectional view of the adjuster ring in the shower head of FIGS. 1 and 2, taken along line BB in FIG. 2. In the shower head of FIG. 1 and FIG. 2, the most advanced position of the adjuster ring is the figure shown by the BB sectional drawing of FIG. In the shower head of FIG. 1 and FIG. 2, the intermediate position of the adjuster ring is the figure which showed the BB sectional drawing of FIG. It is sectional drawing which shows the nozzle of another shape. It is sectional drawing which shows the nozzle of another shape. It is sectional drawing which shows the shower head which attached the water discharge plate of another shape. It is sectional drawing which shows the other example of a shape of a water discharging plate. It is sectional drawing which shows the further another example of a shape of a water discharging plate. It is sectional drawing which shows the further another example of a shape of a water discharging plate.

  1 to 3 show an embodiment of a shower head according to the present invention. This shower head (1) uses a mixed fluid obtained by mixing water (including hot water) and compressed air, and jets water into ultrafine particles. Accordingly, the discharge flow discharged from the shower head (1) is a mist flow.

  In the following description, the direction in which the mist flow proceeds is the front, and the opposite direction is the rear. The strength of the mist flow is relative, and it is assumed that the water pressure and air pressure are constant.

  As shown in FIGS. 1 to 3, the shower head (1) includes a housing (10), a water discharge plate (20), the water discharge plate, a nozzle group (30), a rear plate (40), an introduction block (50), The rear cover (60), the adjuster ring (70), and parts associated therewith are constituted.

  The housing (10) is a short cylinder with a circular cross section, has a protruding edge (11) protruding inward from the front peripheral edge, has an internal thread portion (12) formed on the inner peripheral surface, and is on the front side of the outer peripheral surface. Has a male threaded portion (13).

  The water discharge plate (20) has a truncated cone shape protruding rearward, the center portion (21) and the peripheral edge portion (22) are formed of a flat plate, and the intermediate portion is a cone portion (23). A single water passage hole (24a) is formed in the center portion (21), and a plurality of water passage holes (24) are formed in the conical portion (23) so as to draw four concentric circles centering on the water passage hole (24a). 24b) (24c) (24d) (24e) are drilled.

  Each water hole (24a) (24b) (24c) (24d) (24e) of the water discharge plate (20) has a thin columnar nozzle (30a) (30b) (30c) (30d) (30e) made of a soft resin. ) Is detachably attached. As shown to FIG. 4A, the water flow path (31) of the said nozzle (30a) (30b) (30c) (30d) (30e) is a base end part, and the water flow hole (24a) (24b) of a water discharging plate (20) (24c) (24d) It communicates with (24e), and the front-end | tip is made into the diameter-reduced water outlet.

  Here, for convenience of explanation, the water passage hole of the water discharge plate (20) central portion (21) is referred to as the central water passage hole (24a), and the nozzle attached to the central water passage hole (24a) is the central nozzle (30a). Called. In addition, each water passage hole and each nozzle on the circle with the smallest diameter among the four concentric circles are referred to as a first row water passage hole (24b) and a first row nozzle (30b). The second row water holes (24c) and the second row nozzles (30c), the third row water holes (24d) and the third row nozzles (30da), which are on the circle with the maximum diameter The nozzles are referred to as a fourth row water passage hole (24e) and a fourth row nozzle (30e). These nozzles (30a) (30b) (30c) (30d) (30e) constitute a nozzle group (30).

  As shown in FIG. 4A, a female screw portion (25) is formed on the inner peripheral surface of the water passage hole (24a), while a male screw portion (32) is formed on the outer peripheral surface of the base end side of the nozzle (30a). Is formed. The nozzle (30a) is detachably attached to the water passage hole (24a) by engaging and disengaging these screw portions (25) and (32). Further, since the attachment is performed by screwing, the retaining state is maintained even against water pressure. 4A illustrates the central water passage hole (24a) and the central nozzle (30a), all the nozzles have the same structure and are detachably attached to the water passage hole.

  The rear plate (40) has a dish shape having a peripheral wall (42) that rises forward from the periphery of the plate body (41) having a wide-angle conical shape, and a female screw portion of the housing (10) is provided on the outer peripheral surface of the peripheral wall (42). A male thread portion (43) that engages with (12) is formed. A screw hole (44) is formed in the center of the plate body (41) so as to penetrate the plate body (41).

  The introduction block (50) is a member for introducing hot water and compressed air from the outside, and the front side is a screw portion (51) that engages the screw hole (44) of the rear plate (40), and the main passage ( 52) is provided in an open manner on the end face of the threaded portion (51). The main passage (52) branches to the side, and a water passage (53) and an air passage (54) are formed in the side surface of the block. Joints (55) and (56) for connecting hoses (not shown) are attached to the openings of the water passage (53) and the air passage (54), respectively.

  The rear cover (60) is externally fitted to the plate body (41) of the rear plate (40), and the central part of the rear surface covers the introduction block (50) and protrudes into a rectangle, for holding the shower head (1) by hand. A gripping part (61) is formed. A switch (63) for switching between introduction and stop of water and compressed air is attached to the long side surface of the gripping part (61), and a hose for introducing water and compressed air is passed through the short side surface. A circular hole (64) is drilled.

  The adjuster ring (70) corresponds to the regulating member in the present invention, and is a cylindrical body that is externally fitted to the housing (10). The adjuster ring (70) has a female threaded portion (71) formed on the inner peripheral surface, and the female threaded portion (71) is engaged with the male threaded portion (13) of the housing (10), thereby housing (10) By rotating the adjuster ring (70) in the engaged state of the screw portions (71) and (13), the adjuster ring (70) is rotated by the center line (P) of the water discharge plate (20). And it can be moved forward and backward in parallel with the outer peripheral surface. The adjuster ring (70) can be stopped at any position within the engagement range of the female screw portion (71) and the male screw portion (13) of the housing (10). The protruding distance (d) can be arbitrarily set.

  The shower head (1) is assembled by the above-described members as follows.

  After the water discharge plate (20) is inserted into the housing (10) from the rear, the male screw part (43) of the peripheral wall (42) of the rear plate (40) is engaged with the female screw part (12) of the housing (10). The rear plate (40) is screwed into the housing (10), the tip of the peripheral wall (42) is brought into contact with the peripheral edge (22) of the water discharge plate (20), and the water discharge plate (20) is pressed forward. . As a result, the front surface of the water discharge plate (20) is constrained to the front retaining state by the protruding edge (11) of the housing (10), and the rear surface is constrained by the rear plate (40). Fixed to. The rear plate (40) is also fixed in the housing (10). A space corresponding to the height of the peripheral wall (42) is formed between the water discharge plate (20) and the rear plate (40), and this space is a storage chamber (45) for a mixed fluid of water and compressed air. Used as Furthermore, the introduction block (50) is attached to the rear plate (40) by screwing the screw portion (51) of the introduction block (50) into the screw hole (44) of the rear plate (40). Next, the rear cover (60) is externally fitted to the plate body (41) of the rear plate (40), and the rear end surface of the gripping part (61) is fixed to the introduction block (50) with screws (62). Fix it behind (10). Also, the adjuster ring (70) can be moved forward and backward to the housing (10) by fitting the adjuster ring (70) to the housing (10) and engaging the female thread (71) and male thread (13). Attach to.

  The assembled shower head (1) connects the hose to the joint (55) (56) of the introduction block (50), and supplies water and compressed air from the outside. In the introduction block (50), the water passage (53) is provided in the front and the air passage (54) is provided in the rear, and the compressed air is introduced into the water, so that the water particles are easily refined. The introduced mixed fluid of water and compressed air enters the storage chamber (45), and as a mixed fluid of uniform pressure, the water flow holes (24a) (24b) (24c) (24d) (24e) of the water discharge plate (20) And is injected as a mist flow from the nozzle group (30). At this time, since the discharge port of the nozzle has a reduced diameter, a fine mist flow is discharged with a strong injection force. Further, since the mist flow is injected with a strong force by the compressed air, a high cleaning effect can be obtained even with a small amount of water.

As shown in FIGS. 5A to 5C, in the conical water discharge plate (20), the central nozzle (31 a) is attached perpendicularly to the central portion (21) made of a flat plate, and the conical portion (23) nozzle ( 30b) (30c) (30d) (30e) are mounted so as to stand upright in the normal direction. Therefore, the mist flow of the center nozzle (30a) travels on the center line (P), and the mist flow of the nozzles (30b) (30c) (30d) (30e) of the conical portion (23) moves to the center line (P). Proceeding toward the concentric circles. That is, the mist flow of the first row nozzle (30b) is converged to the first convergence point (F ₁ ) at the position closest to the shower head, and hereinafter the second row nozzle (30c), the third row nozzle (30d), The mist flow of the four-row nozzle (30e) is focused on the second focusing point (F ₂ ), the third focusing point (F ₃ ), and the fourth focusing point (F ₄ ) that are sequentially moved away from the shower head (1). The focal point _{(F 1) (F 2)} (F 3) (F 4) in the mist flow is intensified, mist flux at each focal point _{(F 1) (F 2)} (F 3) (F 4) The cross-sectional area is larger as it is closer to the nozzle and smaller as it is farther away. Moreover, after passing through each of the focusing points (F ₁ ), (F ₂ ), (F ₃ ), and (F ₄ ), the mist flux diffuses and the cross-sectional area becomes large and weakens. That is, the strength and cross-sectional area of the mist flux change on a single line. By changing the distance from the nozzle to the object to be cleaned, it is possible to perform cleaning with a mist flow having different strength and cleaning range.

  In addition, the nozzle group (30) can be individually removed, and the water passage hole from which the nozzle is removed can be used as a discharge port as it is, or the water passage hole (20a) can be closed to stop the water. You can also. FIG. 4B shows the water passage hole (24a) with the nozzle (30a) removed, and the diameter of the water passage hole (24a) is larger than the discharge port of the nozzle (30a). Become. Moreover, FIG. 4C has shown the water stop state which attached the obstruction | occlusion stopper (33) without an opening part to a water flow hole (24a). By closing some of the water holes, the mist flow of other nozzles or water holes becomes stronger.

  As described above, the adjuster ring (70) is attached to the housing (10) so as to freely advance and retract. In the last retracted position of the adjuster ring (70) shown in FIG. 5A, the tip of the adjuster ring (70) coincides with the tip of the housing (10), and the protruding distance (d) from the housing (70) becomes “0”. Position. At the last retracted position, the tips of at least some of the nozzles in the nozzle group (30) protrude forward from the tips of the adjuster ring (70). Further, as shown in FIG. 5C, the most advanced position where the protrusion distance (d) is the maximum is that the tip of the adjuster ring (70) is ahead of all the nozzles of the nozzle group (30), This is the position where the nozzle is hidden behind the adjuster ring (70). FIG. 5B shows an intermediate position of the adjuster ring (70).

  The strength of the mist flow discharged from the shower head and the cleaning range (cross-sectional area of the mist flux) vary depending on the distance to the object to be cleaned, and the user can use the hand-held shower head at different distances according to the cleaning purpose and preference It is common to do. Since the shower head is hand-held, changing the distance is easy. However, it is difficult to keep the handheld shower head stably at a position away from the object to be cleaned. In such a case, when the adjuster ring (70) is used, cleaning can be performed while regulating the shortest distance from the cleaning target to the nozzle group (30) according to the protruding distance (d) from the housing (10). it can. The strength of the mist flow ejected from the nozzle group (30) varies depending on the distance from the nozzle group (30), and in the water discharge plate where the mist flow converges or diffuses, the cleaning area depends on the distance to the nozzle group (30). Different. Therefore, it is effective to regulate the shortest distance to the nozzle group (30) by adjuster ring in order to clean the mist flow poured into the object to be cleaned while keeping the strength and the cleaning area suitable for the purpose of cleaning.

5A to 5C, (W ₁ ) (W ₂ ) (W ₃ ) are positions slightly apart from the tip of the adjuster ring (70), and the cleaning is performed when the adjuster ring (70) is set to each position. The range (cross section of mist flux) is assumed. Of the three protruding positions (d) of the adjuster ring (70), the cleaning range (W ₁ ) at d = 0 in FIG. 5A is wide and the mist flow is weak. Moreover, since the front-end | tip of a nozzle group (30) is ahead of an adjuster ring (70), the nozzle group (30) can also be used as a head massage brush at the time of hair washing. In the cleaning range (W ₂ ) of FIG. 5B, the mist flow converges and the cleaning range becomes narrower than (W ₁ ), but the mist flow becomes stronger. The cleaning range (W ₃ ) in FIG. 5C is further narrowed and the mist flow becomes stronger.

[Other shapes of nozzle]
The strength of the mist flow varies depending on the shape of the water passage of the nozzle. Since the nozzle of the shower head of the present invention is detachable, the strength of the mist flow can be changed by replacing the nozzle with a different shape even if the water pressure and air pressure are the same.

  In the nozzle (30a) shown in FIG. 4A, the diameter of the water passage (31) is reduced on the discharge port side. In such a nozzle (30a), since the pressure of the mixed fluid introduced from the base end side of the nozzle (30a) through the water flow hole of the water discharge plate increases on the discharge port side, the water particles are refined and the injection force is increased. It is done. In addition, the sprayed mist flow has a narrow diffusion range and a mist flow having a small cross-sectional area.

  In contrast to the nozzle (30a), the nozzle (35) in FIG. 6A has a diameter on the base end side of the water passage (36) smaller than the diameter of the discharge port. In such a nozzle (35), since the pressure of the mixed fluid introduced from the base end side of the nozzle (35) decreases on the discharge port side having a large diameter, a mist flow having a weaker injection force than the nozzle (30a) Become. Moreover, compared with the nozzle (30a), the diffusion range of the injected mist flow is wide, and the mist flow is weakened by diffusion.

  In the nozzle (37) of FIG. 6B, the cross-sectional area of the water passage (38) is constant. In such a nozzle (37), the injection force and the diffusion range of the mist flow are intermediate between the two nozzles (30a) (35).

[Other shapes of water discharge plate]
The discharge direction of the mist flow can be changed depending on the shape of the water discharge plate.

  1 to 4 and 5A to 5C, the water discharge plate (20) of the central nozzle (30a) attached to the central portion made of a flat plate travels in parallel with the center line. (30b), (30c), (30d), and (30e) are attached to the cone (23) in the normal direction, so the nozzles (30b), (30c), (30d), and (30e) in each row are parallel to each other. Thus, the mist flow is converged toward the respective converging points (F1), (F2), (F3), and (F4). That is, the discharge direction of the mist flow can be changed according to the inclination angle of the discharge plate at the nozzle mounting position.

  Since the water discharge plate (80) of FIG. 7 is formed of a spherical surface that is curved with a certain curvature, a plurality of nozzles (81) arranged on a plurality of concentric circles are attached in the normal direction so that all nozzles (81 ) Converges to the center (F5) of the spherical surface. When such a water discharge plate (80) is used, a very strong mist flow is formed at the center (F5).

  Further, when the frustoconical portion of the water discharge plate (20) in FIG. 3 is projected in the reverse direction, the mist flow of all the nozzles excluding the center can be directed outward to diffuse the mist flux. The mist flux can also be diffused when the water discharge plate (80) of FIG.

  8A to 8C are examples of a water discharge plate in which a flat plate or a part of the flat plate is provided with an inclined portion.

  The water discharge plate (100) in FIG. 8A is a flat plate, and when the nozzle (37) is mounted upright in the water passage hole (101), there is no diffusion or convergence, and a mist flow parallel to the center line (P) is obtained.

  The water discharge plate (110) of FIG. 8B has a truncated cone part (111) protruding forward at the center part, and the center part (112) and the peripheral part (113) are formed of flat plates. A mist flow parallel to the center line (P) is jetted from the nozzle (35) attached to the water passage holes (114) and (115) of the central part (112) and the peripheral part (113), and the truncated cone part (111) A mist flow diffusing outward is injected from the nozzle (35) attached to the water passage hole (116) on the peripheral surface of the nozzle.

  The water discharge plate (120) of FIG. 8C has a truncated cone part (121) protruding rearward at the center part, and the center part (122) and the peripheral edge part (123) are formed of flat plates. A mist flow parallel to the center line (P) is ejected from the nozzle (35) attached to the water passage holes (124) and (125) of the central part (122) and the peripheral part (123), and the frustoconical part (121). A mist flow that converges toward the center line (P) is ejected from the nozzle (35) attached to the water passage hole (126) on the peripheral surface.

[Example of how to use shower nozzle]
The shower nozzle of the present invention has a detachable nozzle, and can be selected from three modes: nozzle mounting (FIG. 4A), nozzle removal (FIG. 4B), and blocking plug mounting (FIG. 4C). In addition, since the nozzles can be individually attached and detached, the above three modes can be mixed in one water discharge plate, or the different types of nozzles exemplified in FIGS. 3, 6A and 6B can be mixed. Furthermore, the mist flow injection direction of each nozzle can be set according to the shape of the water discharge plate, and by combining the injection directions of a plurality of nozzles, it is possible to set the mist flux diffusion progression, convergence progression, and parallel progression. Also, two types of progressions such as parallel progression and diffusion progression, parallel progression and focusing progression can be combined. By freely combining all these elements, a shower head suitable for various cleaning purposes and suitable for personal preference can be obtained.

  In the following, an embodiment suitable for cleaning purposes will be described by taking the shower head (1) shown in FIGS. 1 to 3 as an example.

(1) As shown in the figure, nozzles (30a) (30b) (30a) (30b) (in which all the water holes (24a) (24b) (24c) (24d) (24e) are reduced in diameter on the outlet side of the water channel (31) When 30c) (30d) (30e) is installed, a mist flux with a strong injection force can be obtained. Such a strong mist flow is suitable for washing hair. Furthermore, as shown in FIGS. 5A to 5C, the strength of the mist flow and the washing range can be changed according to the protrusion distance (d) of the adjuster ring (70).
(2) When about half of the nozzles are removed from the entire nozzle mounting state of (1) so as to be uniformly thinned out from the entire area, a thick and weak mist flow is ejected from the water passage hole from which the nozzles are removed. The cross-sectional area of the mist flux) is the same as the above (1), but the mist flux has a lower injection force than (1). Such weak mist flux is suitable for face washing and body washing.
(3) When the outer peripheral side fourth row nozzle (30e) and third row nozzle (30d) are removed from the mounting state of all nozzles in (1) above, the center nozzle (30a), first row nozzle (30b) and The mist flow of the two-row nozzle (30c) is converged, and becomes weakly converged by removing the outer peripheral nozzle. Such a weak focused flow is suitable for genital washing for nursing care or the like.
(4) When only the center nozzle (30a) is removed from the state where all nozzles are mounted in (1) above, a mist flow with a strong injection force is obtained from the center water passage hole (34a). Such a mist flow is suitable for hair washing as in (1).

  Various nozzle fluxes can also be obtained by using other water discharge plates and attaching nozzles having different shapes. In general, a strong jet or a wide range of focused flow is suitable for hair washing, a low jet force or a diffuse flow is suitable for face washing or body washing, and a narrow range of focused flow is suitable for genital washing.

  For example, in the water discharge plate (100) shown in FIG. 8A, if nozzles having different shapes are mounted, the jet power can be changed even if the cleaning range is the same. 8A is equipped with a nozzle (37) in which the cross-sectional area of the water passage (36) is constant, a large nozzle (35) whose diameter is reduced on the base end side of the water passage (36) shown in FIG. 6A. ), The injection force becomes weak and the diffusion becomes easy. Such a change makes the shower head more suitable for face washing and body washing than when a nozzle (37) having a constant cross-sectional area is attached. If the water passage (31) shown in FIG. 4A or the like is replaced with a nozzle (30a) having a reduced diameter on the discharge side, the jetting force becomes strong, which is suitable for hair washing.

  Further, the water discharge plate (110) of FIG. 8B in which the mist flow diffuses is suitable for face washing and body cleaning, and the water discharge plate (120) of FIG. 8C in which the mist flow converges in a narrow range is suitable for genital washing.

  In the present invention, the nozzle is not limited to being attached to the water discharge plate in an upright or normal direction. Further, the nozzle is not limited to a straight pipe through which the mist flow goes straight, but may be a nozzle of a curved pipe that discharges while the mist flow is bent and inclined with respect to the mounting direction. Therefore, the injection direction of the mist flow can be changed by the attachment angle of the nozzle to the water discharge plate and the discharge angle at the nozzle, and these are the above-mentioned water discharge plates (20) (80) (100) (110) (120 ), The mode of the mist flux can be changed.

  Moreover, although the shower head (1) of the example of illustration generates mist with the fluid mixture of water and compressed air, this invention is not limited to using a fluid mixture. A shower head that discharges only water is also included in the technical scope of the present invention.

  Furthermore, the regulating member of the present invention is not limited to an annular body like the adjuster ring (70) in the illustrated example, and may be a plate-like body.

  Furthermore, the water discharge plate is not limited to being circular in plan view, and may be elliptical or rectangular.

  The shower nozzle of the present invention can be suitably used for nursing bathing for bedridden patients as well as normal bathing and face washing.

1… Shower nozzle
10 ... Housing
20, 80, 100, 110, 120 ... water discharge plate
24a ... Central water vent
24b ... 1st row water hole
24c ... 2nd row water hole
24d ... 3rd row water hole
24e… Fourth row water hole
30 ... Nozzle group
30a… Center nozzle
30b ... 1st row nozzle
30c… 2nd row nozzle
30d ... 3rd row nozzle
30e ... 4th row nozzle
31, 36, 38 ... Waterway
33… Occlusion stopper
35, 37 ... Nozzle
40… Rear plate
50 ... Introduction block
60 ... Rear cover
70 ... adjuster ring P ... center line _{F 1, F 2, F 3} , F 4, F 5 ... converging point _{W 1, W 2, W 3} ... washing range

  The present invention relates to a shower head that is attached to the end of a water supply channel and supplies and discharges water or a mixed fluid obtained by mixing water and compressed air.

  The shower head generally has a water discharge plate with a large number of discharge holes fixed at the end of the water supply channel. In these shower heads, various forms of discharge holes and nozzles have been proposed for the purpose of droplet formation due to collision of two discharge flows, prevention of dripping when water stops, and concentration of multiple discharge flows. (See Patent Documents 1 to 4).

Special table 2007-500595 gazette JP 2010-227181 A JP 2001-50857 A JP 2007-326082 A

  The shower discharge flow has a suitable strength depending on the cleaning site, and in addition, each person has a strength that feels comfortable. In addition, a shower head capable of effectively and comfortably washing the whole body is required for body washing of bedridden patients.

  However, since the strength of the discharge flow and the discharge range cannot be changed with the conventional shower head, a single shower head cannot cope with various cleaning operations.

  In view of the above-described technical background, the present invention provides a shower head capable of freely setting the strength of the discharge flow and the discharge range.

  That is, this invention has the structure as described in following [1]-[5].

[1] A water discharge plate disposed at the end of the water supply channel and having a plurality of water passage holes through which the supplied fluid passes.
A shower head comprising: a plurality of nozzles that are detachably attached to the water flow holes of the water discharge plate and communicate with the water flow holes on the base end side.

  [2] The shower head according to item 1, wherein the plurality of nozzles are attached to the water passage holes so that a plurality of discharge flows discharged from these nozzles are converged.

  [3] The shower head according to item 1 or 2, wherein the plurality of nozzles are arranged on a plurality of concentric circles, and a plurality of focusing points are formed.

  [4] It is attached to the outer peripheral side of the water discharge plate so as to be able to advance and retreat in parallel with the outer peripheral surface of the water discharge plate, and is located forward of the tip of the nozzle at the most advanced position, and the distance between the nozzle and the object to be cleaned is 4. The shower head according to any one of items 1 to 3, further comprising a regulating member for regulating.

  [5] The shower head according to any one of items 1 to 4, wherein the fluid is a mixed fluid in which water and compressed air are mixed.

  According to the invention described in [1] above, the water discharge plate has a plurality of water passage holes, and the nozzles are detachable with respect to each water passage hole. Depending on the arrangement, the shape of the nozzle, and combinations thereof, discharge flows having different strengths and discharge fluxes having different cross-sectional areas can be obtained. For this reason, the discharge flux with a strong and large cross-sectional area is used for hair washing, the discharge flux with a weak and large cross-sectional area is used for face washing and body washing, the discharge flux with a weak and small cross-sectional area is used for genital washing, etc. The shower head can be used for various types of cleaning.

  According to the invention described in [2] above, a discharge flux that is strong and has a small cross-sectional area can be obtained by focusing the discharge flow.

  According to the invention described in [3] above, the discharge flow converges at a plurality of points, and the cross-sectional area of the discharge flow at each convergence point increases as the distance from the nozzle increases, and decreases as the distance from the nozzle increases. Further, after passing through each focusing point, the discharge flux diffuses, and the cross-sectional area becomes large and weakens. That is, the strength and cross-sectional area of the discharge flux change on one line. Then, by changing the distance from the nozzle to the object to be cleaned, it is possible to perform cleaning with discharge flows having different strengths and cleaning ranges.

  According to the invention described in [4] above, by moving the regulating member forward and backward, it is possible to perform washing while regulating the shortest distance from the washing target to the nozzle, and the nozzle of the shower head is separated from the washing target. Can be kept stable in position. As a result, the strength and area of the discharge flow poured into the object to be cleaned can be kept constant.

  According to the invention described in [5] above, when the fluid mixture of water and compressed air is discharged from the nozzle, the water becomes fine particles and a mist flow is formed.

It is a perspective view which shows one Example of the shower head of this invention. It is the side view which looked at the shower head of FIG. 1 from the front end side of the housing. It is the sectional view on the AA line of FIG. It is the elements on larger scale of the water discharging plate with which the nozzle was mounted | worn. It is the elements on larger scale of the water discharging plate which removed the nozzle. It is the elements on larger scale of the water discharging plate which attached the obstruction | occlusion stopper instead of the nozzle. FIG. 3 is a cross-sectional view of the adjuster ring in the shower head of FIGS. 1 and 2, taken along line BB in FIG. 2. In the shower head of FIG. 1 and FIG. 2, the intermediate position of the adjuster ring is the figure which showed the BB sectional drawing of FIG. In the shower head of FIG. 1 and FIG. 2, the most advanced position of the adjuster ring is the figure shown by the BB sectional drawing of FIG. It is sectional drawing which shows the nozzle of another shape. It is sectional drawing which shows the nozzle of another shape. It is sectional drawing which shows the shower head which attached the water discharge plate of another shape. It is sectional drawing which shows the other example of a shape of a water discharging plate. It is sectional drawing which shows the further another example of a shape of a water discharging plate. It is sectional drawing which shows the further another example of a shape of a water discharging plate.

  1 to 3 show an embodiment of a shower head according to the present invention. This shower head (1) uses a mixed fluid obtained by mixing water (including hot water) and compressed air, and jets water into ultrafine particles. Accordingly, the discharge flow discharged from the shower head (1) is a mist flow.

  In the following description, the direction in which the mist flow proceeds is the front, and the opposite direction is the rear. The strength of the mist flow is relative, and it is assumed that the water pressure and air pressure are constant.

  As shown in FIGS. 1 to 3, the shower head (1) includes a housing (10), a water discharge plate (20), the water discharge plate, a nozzle group (30), a rear plate (40), an introduction block (50), The rear cover (60), the adjuster ring (70), and parts associated therewith are constituted.

  The housing (10) is a short cylinder with a circular cross section, has a protruding edge (11) protruding inward from the front peripheral edge, has an internal thread portion (12) formed on the inner peripheral surface, and is on the front side of the outer peripheral surface. Has a male threaded portion (13).

  The water discharge plate (20) has a truncated cone shape protruding rearward, the center portion (21) and the peripheral edge portion (22) are formed of a flat plate, and the intermediate portion is a cone portion (23). A single water passage hole (24a) is formed in the center portion (21), and a plurality of water passage holes (24) are formed in the conical portion (23) so as to draw four concentric circles centering on the water passage hole (24a). 24b) (24c) (24d) (24e) are drilled.

  Each water hole (24a) (24b) (24c) (24d) (24e) of the water discharge plate (20) has a thin columnar nozzle (30a) (30b) (30c) (30d) (30e) made of a soft resin. ) Is detachably attached. As shown to FIG. 4A, the water flow path (31) of the said nozzle (30a) (30b) (30c) (30d) (30e) is a base end part, and the water flow hole (24a) (24b) of a water discharging plate (20) (24c) (24d) It communicates with (24e), and the front-end | tip is made into the diameter-reduced water outlet.

  Here, for convenience of explanation, the water passage hole of the water discharge plate (20) central portion (21) is referred to as the central water passage hole (24a), and the nozzle attached to the central water passage hole (24a) is the central nozzle (30a). Called. In addition, each water passage hole and each nozzle on the circle with the smallest diameter among the four concentric circles are referred to as a first row water passage hole (24b) and a first row nozzle (30b). The second row water holes (24c) and the second row nozzles (30c), the third row water holes (24d) and the third row nozzles (30da), which are on the circle with the maximum diameter The nozzles are referred to as a fourth row water passage hole (24e) and a fourth row nozzle (30e). These nozzles (30a) (30b) (30c) (30d) (30e) constitute a nozzle group (30).

  As shown in FIG. 4A, a female screw portion (25) is formed on the inner peripheral surface of the water passage hole (24a), while a male screw portion (32) is formed on the outer peripheral surface of the base end side of the nozzle (30a). Is formed. The nozzle (30a) is detachably attached to the water passage hole (24a) by engaging and disengaging these screw portions (25) and (32). Further, since the attachment is performed by screwing, the retaining state is maintained even against water pressure. 4A illustrates the central water passage hole (24a) and the central nozzle (30a), all the nozzles have the same structure and are detachably attached to the water passage hole.

  The rear plate (40) has a dish shape having a peripheral wall (42) that rises forward from the periphery of the plate body (41) having a wide-angle conical shape, and a female screw portion of the housing (10) is provided on the outer peripheral surface of the peripheral wall (42). A male thread portion (43) that engages with (12) is formed. A screw hole (44) is formed in the center of the plate body (41) so as to penetrate the plate body (41).

  The introduction block (50) is a member for introducing hot water and compressed air from the outside, and the front side is a screw portion (51) that engages the screw hole (44) of the rear plate (40), and the main passage ( 52) is provided in an open manner on the end face of the threaded portion (51). The main passage (52) branches to the side, and a water passage (53) and an air passage (54) are formed in the side surface of the block. Joints (55) and (56) for connecting hoses (not shown) are attached to the openings of the water passage (53) and the air passage (54), respectively.

  The rear cover (60) is externally fitted to the plate body (41) of the rear plate (40), and the central part of the rear surface covers the introduction block (50) and protrudes into a rectangle, for holding the shower head (1) by hand. A gripping part (61) is formed. A switch (63) for switching between introduction and stop of water and compressed air is attached to the long side surface of the gripping part (61), and a hose for introducing water and compressed air is passed through the short side surface. A circular hole (64) is drilled.

  The adjuster ring (70) corresponds to the regulating member in the present invention, and is a cylindrical body that is externally fitted to the housing (10). The adjuster ring (70) has a female threaded portion (71) formed on the inner peripheral surface, and the female threaded portion (71) is engaged with the male threaded portion (13) of the housing (10), thereby housing (10) By rotating the adjuster ring (70) in the engaged state of the screw portions (71) and (13), the adjuster ring (70) is rotated by the center line (P) of the water discharge plate (20). And it can be moved forward and backward in parallel with the outer peripheral surface. The adjuster ring (70) can be stopped at any position within the engagement range of the female screw portion (71) and the male screw portion (13) of the housing (10). The protruding distance (d) can be arbitrarily set.

  The shower head (1) is assembled by the above-described members as follows.

  After the water discharge plate (20) is inserted into the housing (10) from the rear, the male screw part (43) of the peripheral wall (42) of the rear plate (40) is engaged with the female screw part (12) of the housing (10). The rear plate (40) is screwed into the housing (10), the tip of the peripheral wall (42) is brought into contact with the peripheral edge (22) of the water discharge plate (20), and the water discharge plate (20) is pressed forward. . As a result, the front surface of the water discharge plate (20) is constrained to the front retaining state by the protruding edge (11) of the housing (10), and the rear surface is constrained by the rear plate (40). Fixed to. The rear plate (40) is also fixed in the housing (10). A space corresponding to the height of the peripheral wall (42) is formed between the water discharge plate (20) and the rear plate (40), and this space is a storage chamber (45) for a mixed fluid of water and compressed air. Used as Furthermore, the introduction block (50) is attached to the rear plate (40) by screwing the screw portion (51) of the introduction block (50) into the screw hole (44) of the rear plate (40). Next, the rear cover (60) is externally fitted to the plate body (41) of the rear plate (40), and the rear end surface of the gripping part (61) is fixed to the introduction block (50) with screws (62). Fix it behind (10). Also, the adjuster ring (70) can be moved forward and backward to the housing (10) by fitting the adjuster ring (70) to the housing (10) and engaging the female thread (71) and male thread (13). Attach to.

  The assembled shower head (1) connects the hose to the joint (55) (56) of the introduction block (50), and supplies water and compressed air from the outside. In the introduction block (50), the water passage (53) is provided in the front and the air passage (54) is provided in the rear, and the compressed air is introduced into the water, so that the water particles are easily refined. The introduced mixed fluid of water and compressed air enters the storage chamber (45), and as a mixed fluid of uniform pressure, the water flow holes (24a) (24b) (24c) (24d) (24e) of the water discharge plate (20) And is injected as a mist flow from the nozzle group (30). At this time, since the discharge port of the nozzle has a reduced diameter, a fine mist flow is discharged with a strong injection force. Further, since the mist flow is injected with a strong force by the compressed air, a high cleaning effect can be obtained even with a small amount of water.

As shown in FIGS. 5A to 5C, in the conical water discharge plate (20), the central nozzle (31 a) is attached perpendicularly to the central portion (21) made of a flat plate, and the conical portion (23) nozzle ( 30b) (30c) (30d) (30e) are mounted so as to stand upright in the normal direction. Therefore, the mist flow of the center nozzle (30a) travels on the center line (P), and the mist flow of the nozzles (30b) (30c) (30d) (30e) of the conical portion (23) moves to the center line (P). Proceeding toward the concentric circles. That is, the mist flow of the first row nozzle (30b) is converged to the first convergence point (F ₁ ) at the position closest to the shower head, and hereinafter the second row nozzle (30c), the third row nozzle (30d), The mist flow of the four-row nozzle (30e) is focused on the second focusing point (F ₂ ), the third focusing point (F ₃ ), and the fourth focusing point (F ₄ ) that are sequentially moved away from the shower head (1). The focal point _{(F 1) (F 2)} (F 3) (F 4) in the mist flow is intensified, mist flux at each focal point _{(F 1) (F 2)} (F 3) (F 4) The cross-sectional area is larger as it is closer to the nozzle and smaller as it is farther away. Moreover, after passing through each of the focusing points (F ₁ ), (F ₂ ), (F ₃ ), and (F ₄ ), the mist flux diffuses and the cross-sectional area becomes large and weakens. That is, the strength and cross-sectional area of the mist flux change on a single line. By changing the distance from the nozzle to the object to be cleaned, it is possible to perform cleaning with a mist flow having different strength and cleaning range.

  In addition, the nozzle group (30) can be individually removed, and the water passage hole from which the nozzle is removed can be used as a discharge port as it is, or the water passage hole (20a) can be closed to stop the water. You can also. FIG. 4B shows the water passage hole (24a) with the nozzle (30a) removed, and the diameter of the water passage hole (24a) is larger than the discharge port of the nozzle (30a). Become. Moreover, FIG. 4C has shown the water stop state which attached the obstruction | occlusion stopper (33) without an opening part to a water flow hole (24a). By closing some of the water holes, the mist flow of other nozzles or water holes becomes stronger.

  As described above, the adjuster ring (70) is attached to the housing (10) so as to freely advance and retract. In the last retracted position of the adjuster ring (70) shown in FIG. 5A, the tip of the adjuster ring (70) coincides with the tip of the housing (10), and the protruding distance (d) from the housing (70) becomes “0”. Position. At the last retracted position, the tips of at least some of the nozzles in the nozzle group (30) protrude forward from the tips of the adjuster ring (70). Further, as shown in FIG. 5C, the most advanced position where the protrusion distance (d) is the maximum is that the tip of the adjuster ring (70) is ahead of all the nozzles of the nozzle group (30), This is the position where the nozzle is hidden behind the adjuster ring (70). FIG. 5B shows an intermediate position of the adjuster ring (70).

  The strength of the mist flow discharged from the shower head and the cleaning range (cross-sectional area of the mist flux) vary depending on the distance to the object to be cleaned, and the user can use the hand-held shower head at different distances according to the cleaning purpose and preference It is common to do. Since the shower head is hand-held, changing the distance is easy. However, it is difficult to keep the handheld shower head stably at a position away from the object to be cleaned. In such a case, when the adjuster ring (70) is used, cleaning can be performed while regulating the shortest distance from the cleaning target to the nozzle group (30) according to the protruding distance (d) from the housing (10). it can. The strength of the mist flow ejected from the nozzle group (30) varies depending on the distance from the nozzle group (30), and in the water discharge plate where the mist flow converges or diffuses, the cleaning area depends on the distance to the nozzle group (30). Different. Therefore, it is effective to regulate the shortest distance to the nozzle group (30) by adjuster ring in order to clean the mist flow poured into the object to be cleaned while keeping the strength and the cleaning area suitable for the purpose of cleaning.

5A to 5C, (W ₁ ) (W ₂ ) (W ₃ ) are positions slightly apart from the tip of the adjuster ring (70), and the cleaning is performed when the adjuster ring (70) is set to each position. The range (cross section of mist flux) is assumed. Of the three protruding positions (d) of the adjuster ring (70), the cleaning range (W ₁ ) at d = 0 in FIG. 5A is wide and the mist flow is weak. Moreover, since the front-end | tip of a nozzle group (30) is ahead of an adjuster ring (70), the nozzle group (30) can also be used as a head massage brush at the time of hair washing. In the cleaning range (W ₂ ) of FIG. 5B, the mist flow converges and the cleaning range becomes narrower than (W ₁ ), but the mist flow becomes stronger. The cleaning range (W ₃ ) in FIG. 5C is further narrowed and the mist flow becomes stronger.

[Other shapes of nozzle]
The strength of the mist flow varies depending on the shape of the water passage of the nozzle. Since the nozzle of the shower head of the present invention is detachable, the strength of the mist flow can be changed by replacing the nozzle with a different shape even if the water pressure and air pressure are the same.

  In the nozzle (30a) shown in FIG. 4A, the diameter of the water passage (31) is reduced on the discharge port side. In such a nozzle (30a), since the pressure of the mixed fluid introduced from the base end side of the nozzle (30a) through the water flow hole of the water discharge plate increases on the discharge port side, the water particles are refined and the injection force is increased. It is done. In addition, the sprayed mist flow has a narrow diffusion range and a mist flow having a small cross-sectional area.

  In contrast to the nozzle (30a), the nozzle (35) in FIG. 6A has a diameter on the base end side of the water passage (36) smaller than the diameter of the discharge port. In such a nozzle (35), since the pressure of the mixed fluid introduced from the base end side of the nozzle (35) decreases on the discharge port side having a large diameter, a mist flow having a weaker injection force than the nozzle (30a) Become. Moreover, compared with the nozzle (30a), the diffusion range of the injected mist flow is wide, and the mist flow is weakened by diffusion.

  In the nozzle (37) of FIG. 6B, the cross-sectional area of the water passage (38) is constant. In such a nozzle (37), the injection force and the diffusion range of the mist flow are intermediate between the two nozzles (30a) (35).

[Other shapes of water discharge plate]
The discharge direction of the mist flow can be changed depending on the shape of the water discharge plate.

  1 to 4 and 5A to 5C, the water discharge plate (20) of the central nozzle (30a) attached to the central portion made of a flat plate travels in parallel with the center line. (30b), (30c), (30d), and (30e) are attached to the cone (23) in the normal direction, so the nozzles (30b), (30c), (30d), and (30e) in each row are parallel to each other. Thus, the mist flow is converged toward the respective converging points (F1), (F2), (F3), and (F4). That is, the discharge direction of the mist flow can be changed according to the inclination angle of the discharge plate at the nozzle mounting position.

  Since the water discharge plate (80) of FIG. 7 is formed of a spherical surface that is curved with a certain curvature, a plurality of nozzles (81) arranged on a plurality of concentric circles are attached in the normal direction so that all nozzles (81 ) Converges to the center (F5) of the spherical surface. When such a water discharge plate (80) is used, a very strong mist flow is formed at the center (F5).

  Further, when the frustoconical portion of the water discharge plate (20) in FIG. 3 is projected in the reverse direction, the mist flow of all the nozzles excluding the center can be directed outward to diffuse the mist flux. The mist flux can also be diffused when the water discharge plate (80) of FIG.

  8A to 8C are examples of a water discharge plate in which a flat plate or a part of the flat plate is provided with an inclined portion.

  The water discharge plate (100) in FIG. 8A is a flat plate, and when the nozzle (37) is mounted upright in the water passage hole (101), there is no diffusion or convergence, and a mist flow parallel to the center line (P) is obtained.

  The water discharge plate (110) of FIG. 8B has a truncated cone part (111) protruding forward at the center part, and the center part (112) and the peripheral part (113) are formed of flat plates. A mist flow parallel to the center line (P) is jetted from the nozzle (35) attached to the water passage holes (114) and (115) of the central part (112) and the peripheral part (113), and the truncated cone part (111) A mist flow diffusing outward is injected from the nozzle (35) attached to the water passage hole (116) on the peripheral surface of the nozzle.

  The water discharge plate (120) of FIG. 8C has a truncated cone part (121) protruding rearward at the center part, and the center part (122) and the peripheral edge part (123) are formed of flat plates. A mist flow parallel to the center line (P) is ejected from the nozzle (35) attached to the water passage holes (124) and (125) of the central part (122) and the peripheral part (123), and the frustoconical part (121). A mist flow that converges toward the center line (P) is ejected from the nozzle (35) attached to the water passage hole (126) on the peripheral surface.

[Example of how to use a shower head ]
The shower head of the present invention is detachable from the nozzle, and can be selected from three modes: nozzle mounting (FIG. 4A), nozzle removal (FIG. 4B), and blocking plug mounting (FIG. 4C). In addition, since the nozzles can be individually attached and detached, the above three modes can be mixed in one water discharge plate, or the different types of nozzles exemplified in FIGS. 3, 6A and 6B can be mixed. Furthermore, the mist flow injection direction of each nozzle can be set according to the shape of the water discharge plate, and by combining the injection directions of a plurality of nozzles, it is possible to set the mist flux diffusion progression, convergence progression, and parallel progression. Also, two types of progressions such as parallel progression and diffusion progression, parallel progression and focusing progression can be combined. By freely combining all these elements, a shower head suitable for various cleaning purposes and suitable for personal preference can be obtained.

  In the following, an embodiment suitable for cleaning purposes will be described by taking the shower head (1) shown in FIGS. 1 to 3 as an example.

(1) As shown in the figure, nozzles (30a) (30b) (30a) (30b) (in which all the water holes (24a) (24b) (24c) (24d) (24e) are reduced in diameter on the outlet side of the water channel (31) When 30c) (30d) (30e) is installed, a mist flux with a strong injection force can be obtained. Such a strong mist flow is suitable for washing hair. Furthermore, as shown in FIGS. 5A to 5C, the strength of the mist flow and the washing range can be changed according to the protrusion distance (d) of the adjuster ring (70).
(2) When about half of the nozzles are removed from the entire nozzle mounting state of (1) so as to be uniformly thinned out from the entire area, a thick and weak mist flow is ejected from the water passage hole from which the nozzles are removed. The cross-sectional area of the mist flux) is the same as the above (1), but the mist flux has a lower injection force than (1). Such weak mist flux is suitable for face washing and body washing.
(3) When the outer peripheral side fourth row nozzle (30e) and third row nozzle (30d) are removed from the mounting state of all nozzles in (1) above, the center nozzle (30a), first row nozzle (30b) and The mist flow of the two-row nozzle (30c) is converged, and becomes weakly converged by removing the outer peripheral nozzle. Such a weak focused flow is suitable for genital washing for nursing care or the like.
(4) When only the center nozzle (30a) is removed from the state where all nozzles are mounted in (1) above, a mist flow with a strong injection force is obtained from the center water passage hole (34a). Such a mist flow is suitable for hair washing as in (1).

  Various nozzle fluxes can also be obtained by using other water discharge plates and attaching nozzles having different shapes. In general, a strong jet or a wide range of focused flow is suitable for hair washing, a low jet force or a diffuse flow is suitable for face washing or body washing, and a narrow range of focused flow is suitable for genital washing.

  For example, in the water discharge plate (100) shown in FIG. 8A, if nozzles having different shapes are mounted, the jet power can be changed even if the cleaning range is the same. 8A is equipped with a nozzle (37) in which the cross-sectional area of the water passage (36) is constant, a large nozzle (35) whose diameter is reduced on the base end side of the water passage (36) shown in FIG. 6A. ), The injection force becomes weak and the diffusion becomes easy. Such a change makes the shower head more suitable for face washing and body washing than when a nozzle (37) having a constant cross-sectional area is attached. If the water passage (31) shown in FIG. 4A or the like is replaced with a nozzle (30a) having a reduced diameter on the discharge side, the jetting force becomes strong, which is suitable for hair washing.

  Further, the water discharge plate (110) of FIG. 8B in which the mist flow diffuses is suitable for face washing and body cleaning, and the water discharge plate (120) of FIG. 8C in which the mist flow converges in a narrow range is suitable for genital washing.

  In the present invention, the nozzle is not limited to being attached to the water discharge plate in an upright or normal direction. Further, the nozzle is not limited to a straight pipe through which the mist flow goes straight, but may be a nozzle of a curved pipe that discharges while the mist flow is bent and inclined with respect to the mounting direction. Therefore, the injection direction of the mist flow can be changed by the attachment angle of the nozzle to the water discharge plate and the discharge angle at the nozzle, and these are the above-mentioned water discharge plates (20) (80) (100) (110) (120 ), The mode of the mist flux can be changed.

  Moreover, although the shower head (1) of the example of illustration generates mist with the fluid mixture of water and compressed air, this invention is not limited to using a fluid mixture. A shower head that discharges only water is also included in the technical scope of the present invention.

  Furthermore, the regulating member of the present invention is not limited to an annular body like the adjuster ring (70) in the illustrated example, and may be a plate-like body.

  Furthermore, the water discharge plate is not limited to being circular in plan view, and may be elliptical or rectangular.

The shower head of the present invention can be suitably used for nursing bathing for bedridden patients as well as normal bathing and face washing.

1 ... shower head
10 ... Housing
20, 80, 100, 110, 120 ... water discharge plate
24a ... Central water vent
24b ... 1st row water hole
24c ... 2nd row water hole
24d ... 3rd row water hole
24e… Fourth row water hole
30 ... Nozzle group
30a… Center nozzle
30b ... 1st row nozzle
30c… 2nd row nozzle
30d ... 3rd row nozzle
30e ... 4th row nozzle
31, 36, 38 ... Waterway
33… Occlusion stopper
35, 37 ... Nozzle
40… Rear plate
50 ... Introduction block
60 ... Rear cover
70 ... adjuster ring P ... center line _{F 1, F 2, F 3} , F 4, F 5 ... converging point _{W 1, W 2, W 3} ... washing range

Claims (5)

A water discharge plate which is disposed at the end of the water supply channel and has a plurality of water passage holes through which the supplied fluid passes;
A shower head comprising: a plurality of nozzles that are detachably attached to the water flow holes of the water discharge plate and communicate with the water flow holes on the base end side.   The shower head according to claim 1, wherein the plurality of nozzles are attached to the water passage holes so that a plurality of discharge flows discharged from these nozzles are converged.   The shower head according to claim 1, wherein the plurality of nozzles are arranged on a plurality of concentric circles to form a plurality of focusing points.   A regulation that is attached to the outer circumferential side of the water discharging plate so as to be able to advance and retreat in parallel with the outer circumferential surface of the water discharging plate, is positioned forward of the tip of the nozzle at the most advanced position, and regulates the distance between the nozzle and the object to be cleaned The shower head according to claim 1, comprising a member. The shower head according to claim 1, wherein the fluid is a mixed fluid in which water and compressed air are mixed.

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