JPH0526152U - Shower head sprinkler - Google Patents

Abstract

(57) [Summary] [Purpose] To enhance the strength and durability of the water spray plate. [Structure] A plurality of ring bodies 1 to 4 are concentrically combined, and step portions 11, 12, and 13 are provided on the inner surface of the ring bodies 1, 2, and 3 on the water inflow side. . Ring 1, 2,
Protrusions 1a, 2a, 3a, 4a are provided on the end faces on the inflow side of 3, 4, and are brought into contact with the step portions 11, 12, 13 to form a gap S. [Effect] Even when the ring bodies are combined, the inflow side of the water channel is not blocked by the step portion at all, and the depth of the groove can be the same or substantially the same in the groove longitudinal direction. Therefore, a sufficient amount of shower water can be obtained by the shallow groove. Further, since stress is not locally concentrated on the ring body, the ring body has high strength and good durability.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a shower plate sprinkler plate in which a plurality of annular bodies are concentrically combined.

[0002]

[Prior Art]

 As shown in FIGS. 3 and 4, a sprinkler plate 5 for a shower head, which is a combination of a plurality of ring bodies 1, 2, 3, and 4, has been conventionally used. The central hole 6 is for attaching the water spray plate to the shower head through a screw (not shown). The ring bodies 1 to 4 are made of synthetic resin mold products.

As described in, for example, Japanese Utility Model Publication No. 61-3478, each of the ring bodies 1 to 3 has a step portion 11, 12, on the water inflow side of the inner peripheral surface, as shown in FIG. By providing 13 around the ring body 4, the ring body 4 is locked to the ring body 3, the ring body 3 is locked to the ring body 2, and the ring body 2 is locked to the ring body 1, respectively.

In all of the conventional water spray plates 5, grooves 7 are formed on the outer peripheral surfaces of the ring bodies 1 to 4, and a large number of water channels are extended by the grooves 7 in the thickness direction of the water spray plate. ing.

In such a water sprinkling plate, a part of the inflow side of the water channel is blocked by the step portions 11, 12, 13. Therefore, conventionally, as shown in FIG. 4, the groove is deepened on the inflow side of the water channel (reference numeral 7a in FIG. 4 indicates this deep groove portion) to secure the water amount.

[0006]

[Problems to be solved by the device]

 As shown in FIG. 4, when the ring body is formed so as to partially deepen the groove 7, stress is locally concentrated on the ring body in the deep groove portion 7a, and the ring body is easily broken. there were.

[0007]

[Means for Solving the Problems]

 The water spray plate of the shower head according to the present invention is a water spray plate composed of a plurality of annular bodies assembled concentrically, and a plurality of water channels are formed in the thickness direction of the plate by grooves formed on the peripheral surface of the annular body. Is provided, and on the water inflow side of the inner peripheral surface of the ring body, there is provided a step portion for locking the ring body on the inner peripheral side of the water spray plate of the shower head. In at least one of the inflow side end surface of the ring body and the stepped ring body locking surface, a projection is provided between the inflow side end surface of the ring body and the stepped ring body locking surface. A gap for introducing water into the water channel is formed.

[0008]

[Action]

 In the shower plate sprinkler plate of the present invention, a gap is formed between the step portion of the inner peripheral surface of the ring body and the inflow side end surface of the ring body. Therefore, even if the ring members are combined, the inflow side of the water channel is never blocked by the stepped portion, and the depth of the groove can be the same or almost the same in the groove longitudinal direction.

Therefore, a sufficient amount of shower water can be obtained by the shallow groove. Further, since stress is not locally concentrated on the ring body, the ring body has high strength and good durability.

[0010]

【Example】

 FIG. 1 is a sectional view of a water spray plate 5A of a shower head according to an embodiment, FIG. 2 is a perspective view of a ring body, FIG. 3 is a plan view (bottom view) of the ring body, and FIG. FIG. 4 is a sectional view taken along line IV-IV.

In this embodiment, protrusions 1 a, 2 a, 3 a, 4 a are formed on the end faces of the ring bodies 1, 2, 3, 4 on the inflow side. The protrusions 1a to 4a are located on the outer peripheral edges of the ring bodies 1 to 4. Of course, the protrusions 1a to 4a are located between the grooves 7. The groove 7 has a substantially uniform depth in its longitudinal direction.

Other reference numerals indicate the same parts as in FIGS.

In the water sprinkling plate 5 A formed by combining the ring bodies 1 to 4, the projection 4 a contacts the step portion 13, the projection 3 a contacts the step portion 12, and the projection 2 a contacts the step portion 11. A gap S is formed between each step and the end face on the inflow side of the ring body. Therefore, the water passage formed by the groove 7 is not blocked by the step portion, and the amount of water can be increased. The projection 1a of the outermost ring member 1 abuts on the step portion for locking the water spray plate of the shower head (not shown).

Further, the depth of the groove 7 is uniform in the groove longitudinal direction (water channel direction), stress is not locally concentrated on the ring bodies 1 to 4, and the ring body has high strength and good durability. is there. Further, the protrusions for forming the grooves of the die for molding the ring body may have a uniform height, and the die manufacturing cost is low.

Although the groove 7 is provided on the outer circumference in the above embodiment, the groove 7 may be provided on the inner circumference of the ring body in the present invention.

Further, in the present invention, as shown in FIG. 5, the stepped portion 11 may be provided with a protrusion 11a. Although the ring body 1 is illustrated in FIG. 5, the same applies to the other ring bodies 2, 3, and 4.

[0017]

[Effect of the device]

 As described above, in the water spray plate of the shower head according to the present invention, the depth of the groove of the ring body is uniform in the longitudinal direction of the groove, and there is no local stress concentration on the ring body. Therefore, the strength of the ring is high and the durability is also good. Further, the ring body can be easily molded, and the die cost can be reduced.

The shower head sprinkler plate of the present invention has a relatively simple groove shape, and can form a large number of thin water channels.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a water spray plate according to an embodiment.

FIG. 2 is a perspective view of an annulus of the water sprinkling plate according to the embodiment.

FIG. 3 is a plan view of a ring body.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a perspective sectional view of a main part of a ring body according to another embodiment.

FIG. 6 is a perspective view of a conventional water sprinkling plate.

FIG. 7 is a cross-sectional view of a conventional water sprinkling plate.

[Explanation of symbols]

 1,2,3,4 Ring body 1a, 2a, 3a, 4a, 11a Protrusion 7 Groove 5,5A Sprinkler plate 11, 12, 13 Step part

Claims (1)

[Scope of utility model registration request] 1. A water sprinkling plate comprising a plurality of annular bodies assembled concentrically, wherein a plurality of water channels are provided in the thickness direction of the plates by grooves formed on the peripheral surface of the annular body, In the water spray plate of the shower head, in which a step portion for locking the ring body on the inner peripheral side is provided on the water inflow side of the inner peripheral surface of the ring body, A projection is provided on at least one of the inflow side end surface and the stepped ring body locking surface, and water to the water passage is provided between the inflow side end surface of the ring body and the stepped ring body locking surface. A sprinkler plate for a shower head, characterized in that a gap for introducing the above is formed.