JP2009102942A - Water saving implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent looseness in saving water by inserting a plate member in a joint of a supply channel and to minutely set a water saving rate with a few kinds of material. <P>SOLUTION: This water saving implement comprises a single or laminated plate member part 5 partitioning the supply channel 2 at its joint 22, and a plurality of elastic legs 6 extending widened around an axis from a connection part to one face side on the axis. Single plate members 7-12 have water saving holes 21, and the laminated plate members 7-12 and plate members 7a, 13-15 change the total water flow area rate to the passage area of the supply channel according to the plate members with the water saving holes 21 and the plate members with and without the water saving holes. The plurality of elastic legs 6 are pressed into a passage on one side of the joint 22 of the supply channel 2 from the tip side and stabilized in a position where the plate member part 5 abuts on an end face 23a of the end of a passage 23. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water-saving device, and more particularly, to a water-saving device that is provided in the middle of a water supply channel and saves water by limiting the amount of flowing water.

  As a conventional water-saving device of this type, a plate member that is attached to the joint of the water supply channel and divides the water supply channel into an upstream side and a downstream side, and a main body block that is combined with the plate member so as to be able to rotate around the axis. The number of communication between the water-saving hole of the plate member and the communication hole or communication path of the main body block is different depending on the difference in the relative rotation position thereof, so that the total water flow area ratio relative to the passage area of the water supply channel can be changed. Is already known (for example, see Patent Documents 1 to 3).

These water-saving devices can be easily installed by the user at the joint between the shower head and the hose or the joint between the faucet plug and the swinging pipe, and the flow rate of the water supply according to the set total water flow area ratio is used. Limit and save water.
Japanese Patent No. 3542439 Japanese Patent No. 3673563 JP 2004-176524 A

  By the way, in many cases, the seam of the water supply channel is formed with a screw tightening structure with a seal fitting, and the plate member of the water-saving device is generally held in a gap formed between the upstream side passage and the downstream side passage. Is. However, since the width of this gap is not controlled to a certain size, even if the upstream side passage and the downstream side passage are screwed to the limit, the play can be made between the plate member and the water pressure is The plate member is pressed against the passage on the downstream side, but there is sometimes a case where an abnormal noise is generated due to rattling due to the reaction or disturbance of the supply water. Also, the block body is a molded product with a large volume, and the communication holes and communication passages are easy to mold, and are made large to reduce the water flow resistance, so many holes are not formed, and by relative rotation with the plate member The number of types that can communicate is limited. For this reason, there is a problem that many kinds of water saving tools are required to finely set the water saving rate according to the user's wishes.

  An object of the present invention is to provide a water-saving device that can prevent rattling when a plate member is sandwiched between joints of a water supply channel to save water, and further, a water-saving device that can finely set the water-saving rate with a small number of types of plate members. Is intended to provide.

  In order to achieve the above-described object, a water-saving device of the present invention is provided with a plate member portion that is provided at a joint of a water supply channel and that laminates one or more sheets to partition the water supply channel into an upstream side and a downstream side. One or a plurality of laminated plate member portions and a plurality of elastic legs that are coupled to each other on one surface side on the axis and extend forward from the coupling position around the axis are provided. The water-saving holes that narrow the passage area of the water supply channel, and the laminated plate members are the ones having a water-saving hole, or the passage area of the water supply channel by a combination of one with and without a water-saving hole The plurality of elastic legs are press-fitted into the passage on one side of the joint of the water supply channel under elastic compression spreading from the tip side to the axis line. The plate member is on the one side It is characterized in that the end face or annular step of the inner end of the road and to stabilize the contact position.

  In such a configuration, the plate member portion has at least one plate member, and a plurality of elastic legs extending from the coupling portion on the axis to the plate member to extend forward around the axis in the water supply channel. The plate member portion is brought into contact with the end surface of the one-side passage or the annular step portion in the back thereof by press-fitting the one-side passage of the seam while the spread is compressed. At the same time, it is applied without any play to the end step or the annular stepped portion at the back of the end surface, and at the same time, the plurality of elastic legs that are press-fitted into the one-side passage of the water supply passage are subjected to the elastic restoring force due to the compression that is received during the press-fitting. Since it is pressed against the inner surface and exerts a strong frictional force, it is also possible to get caught by biting when the elastic leg is metal and the tip has a sharp edge, so the other side passage and one side passage Seam with Can be inside of the gap width is even greater than the thickness of the plate member portions to prevent rattling by recoil or running water turbulence plate member portion against water pressure.

  Furthermore, when the number of the plate members of the plate member portion is one, the ratio of the total opening area to the passage cross-sectional area of the water supply passage due to the water saving hole having a small water passage resistance provided therein is the total water passage area ratio. By setting it to less than%, water can be saved at a rate according to the setting. Many types of plate members are required to change the water-saving rate precisely by properly using one plate member. However, the plate member portion has a total water passage area ratio with respect to the passage area of the water supply path by combining the plate members to be laminated, those having water-saving holes, or those having and without water-saving holes. By making it different, the total water flow area can be set finely by reducing the number of types of plate members by combining the number of plate members that are thin and easy to punch and the type of plate members to be laminated. The members include those with no water-saving holes and simple ones with few water saving holes, and the holes can be easily made, so that they can be manufactured at low cost together with elastic legs made of metal or synthetic resin.

  The one-side passage may be a passage on the downstream side in the water supply direction.

  In such a configuration, the dynamic pressure of the flowing water against the plate member portion acts in a direction in which the plate member portion is pressed against the end face of the downstream passage into which the elastic leg is inserted or the annular stepped portion at the back thereof. The backlash of the plate member portion at the joint is further suppressed.

  In addition, the plate members that have multiple water-saving holes are laminated due to the difference in the blocking rate of one water-saving hole due to the overlap of the other water-saving hole-free part and the water-saving hole. The total water-passing area is made different, and those with and without water-saving holes may be made to have different total water-passing areas due to the difference in the blockage rate due to the overlap of the other water-saving hole. it can.

  In such a configuration, the plate member portion is different in the size and outline of the plate members having the water saving hole, the difference in the size and arrangement of the water saving holes of the plate member having the water saving hole, and the difference in the arrangement of the water saving holes, and Due to the small degree of the plate member without the water-saving hole and the difference in the contour shape with respect to the plate member with the water-saving hole, it is possible to set a larger water flow area ratio among the fewer types of plate members.

  In addition, a spring that presses the plate member portion against the end surface of the downstream passage or the annular step portion between the step portion of the passage on the upstream side of the joint can be provided.

  In such a configuration, the stability of the plate member portion in running water can be further improved, and even if no gap is formed between the upstream passage and the downstream passage inside the joint of the water supply passage, the downstream side It is stabilized against the end face or the annular cross section of the passage.

  According to the water-saving device of the present invention, the plate member portion includes at least one plate member, and the elastic leg coupled thereto is pressed into the one side passage of the joint of the water supply channel, and the plate member is moved to one side. It is stabilized by simply contacting the end face of the side passage or the annular step, and even when the gap width of the seam of the water supply passage is large or there is no gap, the plate member reacts against water pressure or flowing water. It is possible to prevent rattling due to disturbance. In addition, the ratio of the total opening area of the water-saving holes in one plate member to the passage cross-sectional area of the water supply passage is set to less than 100%, and water can be saved at a rate corresponding to the ratio. Depending on the combination of those with water-saving holes or those with and without water-saving holes, including the difference in size and contour shape, the number of plate members can be reduced to reduce the total water flow area. It can be set finely. Further, the plate member portion includes a simple one with no or few water saving holes, and the hole can be easily formed, so that it can be manufactured at a low cost together with an elastic leg made of metal or synthetic resin.

  Hereinafter, a water-saving device according to an embodiment of the present invention will be described with reference to FIGS. The present embodiment is, for example, a water supply path 2 to the Java head 1 shown in FIGS. 1 and 2, a water supply path 2 from the faucet plug 31 to the swinging portion 32 shown in FIG. 3, or a flush valve as shown in FIG. The water saving tool 20 is provided at the joint 22 such as the water supply channel 2 to the water 3 to save water. As shown in FIGS. 1 and 3, the water-saving device 20 includes one or a plurality of laminated plate member portions 5 that are divided into an upstream side and a downstream side, and a single or plural laminated plate member portion 1 and its shaft. A plurality of elastic legs 6 which are coupled to each other on one surface side of the line and extend from the coupling position forward around the axis. When the plate member portion 1 is composed of a single piece, the water supply channel 2 is arranged on the upstream side and the downstream side, like the plate members 7, 8, 9, and 10 shown in FIG. 15 and the plate members 11 and 12 shown in FIG. The water-saving hole 21 which narrows the water flow area with respect to the passage area of these water supply paths 2 after having the size to partition is assumed to be provided. The plate members 7, 8, 9, and 10 shown in FIG. 15 have an outer diameter corresponding to the case where the water supply path 2 to the shower head 1 shown in FIGS. 1 and 2 is partitioned, and the plate member 11 shown in FIG. , 12 has an outer diameter corresponding to the case where the water supply path to the flash valve 3 shown in FIG. On the other hand, when it is set as the laminated plate member part 5, as shown in FIG. 15, the set of plate members 7 and 13, the set of plate members 8 and 13, the set of plate members 9 and 13, the plate members 10 and 13 16, a set of plate members 12 and 13, a set of plate members 12 and 14, a set of plate members 7 a, 12 and 13, a set of plate members 7 a, 12 and 14, a plate member 7 a and 12 The total water passage area ratio with respect to the passage area of the water supply channel 2 is made different depending on the combination of the one having the water saving hole 21 or the combination having the water saving hole 21 and the one not having the water saving hole 21 as in the group of 15 To. On the other hand, the plurality of elastic legs 6 are provided in the passage 23 on one side of various seams 22 as shown in FIG. 1, FIG. 2, FIG. 3, and FIG. The plate member 5 is press-fitted by receiving an elastic compression extending from the axis to the axis, and is stabilized at a position where the plate member 5 is in contact with the end surface 23a of the end of the passage 23 on one side or the annular step on the back side. I am doing so.

  Thus, the plate member 5 has at least one of the plate members 7, 8, 9, 10 as shown in FIG. 15 and the plate members 11, 12 as shown in FIG. Compress the expansion of the plurality of elastic legs 6 extending from the connecting portion 24 on the axis line to the front and extending around the axis line to the one-side passage 23 of the seam 22 in the water supply channel 2 as shown in FIGS. The plate member 5 is brought into contact with the end surface 23a of the one-side passage 23 or the annular stepped portion at the back of the plate member portion 5 with the press-fitting, so that the plate member portion 5 is annularly formed at the one-side passage end surface 23a or the back thereof. At the same time that it is applied to the stepped portion without play, at the same time, the plurality of elastic legs 6 press-fitted into the one-side passages 23 of the water supply channels 2, 4 are subjected to the elastic restoring force due to the compression received during the press-fitting. Press against the inner surface to exert a strong frictional force and If the leg 6 is a metal and has a sharp edge at the tip, it is possible to get caught by biting, etc., so that the width B of the gap 24 of the joint 22 between the other side passage 25 and the one side passage 23 is Even when the thickness is larger than the thickness of the plate member portion 5, it is possible to prevent the plate member portion 1 from rattling due to reaction against water pressure or disturbance of flowing water. It is preferable that the sharp edges as described above have an elastic leg 6 having a divergent shape as shown in the illustrated example in which the leg width increases in the protruding direction.

  Furthermore, when the plate member portion 5 is composed of one sheet, the ratio of the total opening area by the water saving holes 21 provided to the passage cross-sectional area in the water supply passages 2 and 4 is the total water passage area ratio, which is less than 100%. By setting to, water can be saved at a rate according to the setting. In this case, many kinds of plate members 7, 8, 9, 10 as shown in FIG. 15 and plate members 11, 12 as shown in FIG. However, a set of laminated plate members 7 and 13 as shown in FIG. 15, a set of plate members 8 and 13, a set of plate members 9 and 13, a set of plate members 10 and 13, a plate member as shown in FIG. Water-saving hole 21 such as a set of 12, 13; a set of plate members 12, 14; a set of plate members 7, 12, 13; a set of plate members 7, 12, 14; a set of plate members 7, 12, 15; By making the total water flow area ratio with respect to the passage area of the water supply channels 2 and 4 different depending on the combination of those having the water-saving holes 21 and those having the water-saving holes 21, the plate can be easily drilled. Depending on the combination of the number of members 5 to be laminated and the type of materials to be laminated, the number of types of materials to be laminated can be reduced and the total water passage area can be set finely. The plate member 5 is a washer type having no water-saving holes 21. And simple things with few water saving holes 21 , Can be inexpensively manufactured together with resilient legs 6, such as made of metal or synthetic resin so drilled is simple.

  Incidentally, if the change in the water saving rate obtained by the plate member portion 5 of each example shown in FIG. 15 used in the water supply channel 2 shown in FIG. 1 and FIG. 2 is shown, it is as shown in the graph shown in FIG. The four plate members 7, 8, 9, and 10 having a difference in the number of water-saving holes 21 having a diameter of 2 mm are used separately, and the water-saving holes 21 are laminated as smaller ones to illustrate the water-saving holes 21. By using the combination of one plate member 13 that does not have a water-saving hole 21 that is differently closed, eight types of water-saving rates that change in a substantially straight line are realized.

  Moreover, if the change of the water-saving rate obtained by the board member part 5 of each example shown in the figure used for the water supply path 4 shown in FIG. 4 is shown in the graph shown in the figure, the diameter of 6 mm and 5.5 mm shown in FIG. Three kinds of plate members 11 having four water-saving holes 21 having different diameters and diameters of 5.0 mm, and two water-saving holes 21 having a diameter of 2 mm have the same six arrangements as the water-saving holes 21 of the plate member 7 shown in the figure. And a further 12 plate members 12 arranged on the outer periphery of the plate member 12, and the plate member 12 shown in the figure without the water-saving hole 21 is slightly larger than the plate member 13. The combination of the plate member 14 without the water saving hole 21 and the combination of these plate members 12, 13, 14 communicate in the same arrangement as the six water saving holes 21 at the center of the plate member 12 6. It has two water-saving holes 21 and the outer periphery of the plate member 12 12 and further combinations of arrangement the plate members 7a having an outer peripheral portion 7a1 for closing the inner half portion of the water-saving holes 21, by realizes slightly water-saving rate of eight which changes linearly.

  Here, a plurality of laminated plate member portions 5 having water saving holes 21 are not provided with one other water saving hole 21 with respect to one water saving hole 21 as shown in the combination example of plate members 12 and 7a shown in FIG. The total water passing area is made different depending on the difference in the blocking rate with respect to the entire one water-saving hole 21 due to the overlap of the outer peripheral portion 7a1 and the overlap of the water-saving holes 21, and with or without the water-saving hole 21 Is a combination example of the plate members 7 and 13 shown in FIG. 15, a combination example of the plate members 8 and 13, a combination example of the plate members 9 and 13, a combination example of the plate members 10 and 13, and a plate member 12 shown in FIG. , 13 combination example, plate member 12, 14 combination example, plate member 7a, 12 and plate member 13 combination example, plate member 7a, 12 and plate member 14 combination example, plate member 7a, 1 As shown in the example of the combination with the plate member 15, the total water passing area is different depending on the difference in the blocking rate due to the overlap of the other water-saving hole 21 with the other water-saving hole 21. Depending on the size and contour of the plate members 12, 7a with the difference in the arrangement of the water saving holes 21, the other water saving for the plate members 7, 8, 9, 10, 11, 12, 7a with one water saving hole 21 Due to the small degree of the plate members 13, 14, 15 having no holes and the difference in the contour shape, a larger water flow area ratio can be set between fewer types of plate members.

  By the way, the water-saving device 20 as described above is provided at the joint 22 between the hose 33 of the water supply channel 2 and the shower head 1 in the example shown in FIG. 1, and the shower head 1 and the hose 33 of the water supply channel 2 in the example shown in FIG. 4 is provided at the joint 22 between the hand-operated stop shower adapter 35 and the hose 33, and is provided at the joint 22 between the faucet plug 31 and the swing pipe 32 in the example shown in FIG. Then, it is provided at the joint 22 between the flash valve 3 and the downstream connection pipe 34. The water-saving device 20 can also be provided at the joint between the hose 33 and the main plug (not shown) in the water supply path 2 to the shower head 1. In this case, the upstream pressure increase load caused by the flow rate restriction by the water-saving device 20 is caused by the hose 31. Has the advantage of not working. However, the present invention is not limited to this, and the water-saving device is effective when provided in the middle of various water supply channels 2.

  In any case, as shown in FIGS. 1, 2, 3, and 4, if the water saving tool is a passage on the downstream side in the water supply direction, as shown in FIGS. Since the dynamic pressure acts in the direction in which the plate member portion 5 is pressed against the end surface 23a of the downstream side passage 23 into which the elastic leg 6 is inserted or the annular stepped portion at the back thereof, the plate member at the joint 22 of the water supply passages 2 and 4 The rattling of the part 5 is further suppressed.

  Further, in the example shown in FIG. 4, in particular, a spring 27 that presses the plate member portion 5 against the end face 23 a of the downstream passage 23 or the annular step portion between the step portion 26 of the passage 25 on the upstream side of the joint 22. It is supposed to be prepared. As a result, the stability of the plate member portion 5 in running water can be further enhanced, and the gap 22 is formed between the upstream passage 25 and the downstream passage 23 in the joint 22 of the water supply passage 4 as shown in the example of the drawing. Even if it is not formed, it is stabilized against the end face or annular cross section of the downstream passage.

  The example shown in FIG. 1, the example shown in FIG. 2, and the example shown in FIG. 3 use a water-saving device having a plate member portion 5 that is a combination of the plate members 9 and 13 shown in FIG. As shown, both the plate member portion 5 and the elastic legs 6 are made of metal. The plate members 9 and 13 have a coupling hole 41 at the center, and the elastic legs 6 are processed by sheet metal so that three of them extend from the substrate portion 6a. The elastic members 6 have a coupling hole 42 at the center of the substrate portion 6a. , 42 and the nuts 44 screwed into the bolts 43 are coupled and integrated with each other. Such coupling between the plate member portion 5 and the elastic leg 6 can be similarly applied to both the single plate type and the plurality of laminated types shown in FIGS. 15 and 16. In the example shown in FIGS. 7 and 8, the plate member portion 5 and the elastic leg 6 are connected by caulking with a rivet 45 instead of fastening with bolts and nuts. It is easy to prevent looseness.

  The example shown in FIGS. 9 and 10 uses a water-saving device having a plate member portion 5 that is a combination of the plate members 7 and 13 shown in FIG. 15, and the plate member portion 5 as shown in FIGS. It is made of metal and a resin in which the elastic legs 6 are integrally formed around the base 6b, and the bolts 43 passed through the fastening holes 41 and 42 provided in the center of the plate members 7 and 13 and the base 6b and the nuts 44 screwed into the bolts 43 They are connected and integrated with each other by fastening using. The example of FIG. 3 uses this resin type water saving tool. The fastening holes are made of metal. The plate members 9 and 13 have a coupling hole 41 in the center, and the elastic legs 6 are processed by sheet metal so that three of them extend from the substrate part 6a. The board part 6a has a coupling hole 42, and these coupling holes 41 and 42 are provided. The bolts 43 and the nuts 44 that are passed through are fastened together and integrated with each other. In the example shown in FIGS. 11 and 12, instead of bolts and nuts, a coupling shaft 6 c integrally formed so as to protrude from the center of the base portion 6 a to the side opposite to the elastic legs 6 is used as a fastening hole for the plate members 7 and 13. 41, the protruding ends of the fastening shafts 6c are coupled to each other by caulking that is pressed and crushed by heating.

  In the example shown in FIGS. 13 and 14, the auxiliary washer 51 and the auxiliary nut 52 are added to the combination of the plate members 7 a, 12, and 14 shown in the figure, and the metal elastic leg 6, bolt 43, nut 44, auxiliary It is connected and integrated by fastening with a nut 52, and a specific water passage restriction state of the water saving hole 21 can be seen.

  Finally, since the plate members 13, 14, 15 that can be used in a stacked manner with respect to the plate members 7, 8, 9, 10, 11, 12 that are used separately are small in diameter, the plate members can also be laminated by using them. Since the thickness of the sandwiched portion of the portion 5 into the gap 24 does not change, it is possible to avoid the problem that the B is thicker than the width of the gap 24 and a screw tightening margin cannot be obtained.

  The water-saving device of the present invention can be installed in the middle of a water supply channel using its joints to save water with a limited water passage area with respect to the passage cross section of the water supply channel.

It is the side view which looked at the principal part which shows the example which provided the water saving tool which concerns on this invention in the joint of the shower head and the hose. It is a disassembled perspective view which shows the example which provided the water saving tool in the joint of the hose and the stop shower adapter. It is the side view which looked at the principal part which shows the example which provided the water-saving tool in the joint of the faucet plug and the swinging pipe. It is sectional drawing which shows the example provided in the joint of a water-saving tool and a flush valve, and a downstream connection pipe. It is a perspective view which shows one example of a water saving tool. It is sectional drawing of the water saving tool of FIG. It is a perspective view which shows the modification of the water saving tool of FIG. It is sectional drawing of the water saving tool of FIG. It is a perspective view which shows another example of a water saving tool. It is sectional drawing of the water saving tool of FIG. It is a perspective view which shows the modification of the water saving tool of FIG. It is sectional drawing of the water saving tool of FIG. It is a perspective view which shows the other example of a water saving tool. It is sectional drawing of the water saving tool of FIG. It is a graph which shows the relationship between the board member part example which performs water saving of 8 types of water saving tools used for the water supply path to a shower head, and the water saving rate by them. It is a graph which shows the relationship between the board member part example which performs water saving of 8 types of water saving tools used for the water supply path from a flash valve, and the water saving rate by them.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shower head 2 Water supply path 3 Flash valve 5 Plate member part 6 Elastic leg 6a Base 6b Base part 6c Connection shaft 7-15 Plate member 20 Water saving tool 21 Water saving hole 22 Seam 23, 25 Channel 23a End surface 24 Gap 26 Step part 27 Spring 31 Faucet plug 32 Swing pipe 33 Hose 34 Downstream connection pipe 35 Stop shower adapter 41, 42 Connection hole 43 Bolt 44 Nut 45 Rivet 51 Auxiliary washer 52 Auxiliary nut

Claims (5)

  One or a plurality of laminated plate member portions that are provided at the joints of the water supply passages and divide the water supply passage into an upstream side and a downstream side, and this one or a plurality of laminated plate member portions and one surface side on the axis thereof A plurality of elastic legs that are coupled to each other and extend forward from the coupling position around the axis, and each plate member has a water-saving hole that narrows the passage area of the water supply channel, and is a laminated plate member The total water passage area ratio with respect to the passage area of the water supply path is made different depending on the combination of those having water-saving holes or those having water-saving holes and those having no water-saving holes. Is pressed into the passage on one side of the joint of the water supply passage under elastic compression spreading from the front end side to the axis, and the plate member portion is the end surface of the end of the passage on the one side or the back thereof. In contact with the annular step on the side Water saving device being characterized in that so as to stabilize the.   The water-saving tool according to claim 1, wherein the one-side passage is a passage on the downstream side in the water supply direction.   A plurality of laminated plate members with water-saving holes are connected to each other due to the difference in the clogging rate of one water-saving hole due to the overlap of one water-saving hole without the other water-saving hole and the overlap of the water-saving holes. 3. The water flow area is made different, and the one with and without a water-saving hole is made to have a different total water-flowing area depending on the difference in the blocking rate due to the overlap of the other water-saving hole with the other. Water saving tool.   The water-saving device according to any one of claims 1 to 3, wherein the plate member is made of metal, and the elastic legs are made of metal or synthetic resin.   The water-saving device according to any one of claims 1 to 4, further comprising a spring that presses the plate member portion against the end surface of the downstream passage or the annular step portion between the step portion of the passage on the upstream side of the joint. .

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