JP2008267028A - Water faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water faucet which is superior in appearance, while incorporating a water-purifying cartridge, saved in installation space, and is smoothly maintainable. <P>SOLUTION: This water faucet comprises a water faucet body 10; a water discharge supporting member (holding member 61) having a cartridge insertion part K, capable of receiving the water supplied from the water faucet body 10 thereto; a water discharge port member (head part 62) having water discharge ports (62w, 62v); and a water purifying cartridge 70, inserted into the cartridge insertion part K through the attaching/detaching port M of the water discharge support member. A biasing means (coil spring B) for bearing a biasing force toward the outside of the cartridge insertion part K on the water-purifying cartridge 70 is disposed in the cartridge insertion part K. A pressing part (rear-end surface E) for pressing the water-purifying cartridge 70 on which the biasing force is loaded toward the inside of the cartridge insertion part is formed on the water discharge port member. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a faucet.

In recent years, a water purifier (water purification cartridge) is integrated in a faucet. For example, as shown in FIG. 24, a faucet including a faucet body 80 and a water purifier 82 integrated on a side portion of the faucet body 80 has been proposed (Patent Document 1, hereinafter, “conventional example”). "). The faucet body 80 incorporates a mixing valve capable of mixing hot water supplied from a hot water supply source using a hot water supply pipe 81H and water supplied from a water supply source using a water supply pipe 81C (illustrated). Omitted). Further, a water purification cartridge 82c is housed inside the water purifier 82.
JP-A-9-228437

  However, the hot and cold water mixing faucet according to this conventional example has a problem that the external appearance (look) is poor because the water purifier 82 is externally attached to the faucet body 80. Further, there is a problem that the installation space is increased by the amount of the water purifier 82 provided on the side of the faucet body 80.

  On the other hand, in order to solve such a problem, the present inventor completed a “water faucet (hereinafter referred to as“ an improved example ”)” as shown below, and filed a patent application relating to the improved example ( (Japanese Patent Application No. 2007-4498). That is, as shown in FIG. 21, the faucet according to this improved example includes a faucet body 185 including a support portion 185b, a water discharge support member 186 that is detachably supported by the support portion 185a, and the water discharge support member. A water discharge head 187 detachably supported by 186.

  In this improved example, the water discharge support member 186 has a double tube structure in which the inner cylinder 186b is inserted into the outer cylinder 186a. The cartridge insertion portion 188s is configured using the internal space of the inner cylindrical body 186b configured in a substantially cylindrical shape with a bottom. In addition, the water discharge support member 186 is provided with an attachment / detachment opening 188t that opens at its protruding end, and the water purification cartridge 186j can be inserted into or removed from the cartridge insertion part 188s through the attachment / detachment opening 188t. .

  However, there is room for further improvement in this improved example. That is, in this improved example, when the water purification cartridge 186j is replaced, the water purification cartridge 186j enters the cartridge insertion portion 188s, and it becomes difficult or impossible to remove the water purification cartridge 186j from the water discharge support member 186. there is a possibility. In such a case, it is difficult to smoothly perform maintenance of this kind of faucet (water faucet with built-in water purification cartridge).

  From the above circumstances, it is necessary to further improve the faucet according to this improved example. That is, it is necessary to further improve the improved example while solving the above-described problems of the conventional example, and to facilitate the maintenance of the water faucet with a built-in water purification cartridge.

  The present invention solves the above-mentioned problems, and has a good appearance (appearance) while incorporating a water purification cartridge, can save installation space, and can facilitate maintenance. The purpose is to provide a faucet.

The faucet of the invention of claim 1
A faucet body,
A water discharge support member provided with a cartridge insertion portion capable of receiving water supplied from the faucet body;
A spout member mounted on the spout support member and having a spout opening at a predetermined site;
An intake portion that is inserted into the cartridge insertion portion through the attachment / detachment opening provided in the water discharge support member and is attached to the water discharge support member, and an intake portion for taking in the water received in the cartridge insertion portion, and an intake at the intake portion A water purification cartridge comprising: a purification member for subjecting the water to a water purification treatment; and a take-out portion for taking out the water subjected to the water purification treatment by the purification member;
A water faucet capable of discharging water taken out from the take-out part through the water outlet,
The cartridge insertion portion is provided with a biasing means for loading a biasing force toward the outside of the cartridge insertion portion with respect to the water purification cartridge,
The water outlet member is provided with a pressing portion for pressing the purified water cartridge loaded with the urging force toward the inside of the cartridge insertion portion.

  According to the faucet of the invention of claim 1, since the water purification cartridge is disposed in the water discharge support member, it is not necessary to externally attach the water purification cartridge (water purifier) to the faucet body. For this reason, the appearance (appearance) is good and the installation space can be saved. In addition, according to the faucet of the invention of claim 1, since the water purification cartridge can be exchanged smoothly, maintenance can be facilitated. That is, when the spout member is removed from the spout support member, even if the water purification cartridge remains in the cartridge insertion portion, the "restraint by the spout member on the water purification cartridge" is released at the stage of removing the spout member. Is done. Accordingly, the water purification cartridge is pushed in the “outside direction of the cartridge insertion portion” by the urging force of the urging means. In other words, if the spout member is removed, the water purification cartridge approaches the operator (the person who performs the water purification cartridge replacement operation) by the urging force of the urging means, so that the water purification cartridge replacement operation can be performed smoothly. The faucet maintenance can be facilitated.

  Here, in this specification, “mixed water” and “hot water” are defined as follows. That is, “mixed water” refers to “hot water” generated by mixing “hot water (hot water supplied from a hot water supply source)” and “water (water supplied from a water supply source)”. Also, “hot water” is used as “generic name for fluids handled by faucets”. That is, “hot water” includes “hot water (hot water supplied from a hot water supply source)”, “water (water supplied from a water supply source)”, and “mixed water”. Furthermore, “raw water” means hot water (hot water, water, or mixed water) that will be discharged without passing through the “water purification cartridge” or “water purifier” (without being purified by the purification member). "Purified water" refers to "hot water (hot water, water, or mixed water) discharged through a water purification cartridge or water purifier".

  The faucet of the invention of each claim handles “water (water supplied from a water supply source)” and purified water, but does not handle “hot water (hot water supplied from a hot water source)” or “mixed water”. It is also possible to use “water (water supplied from a water supply source)” and purified water along with “hot water (hot water supplied from a hot water supply source)” and “mixed water”. There may be.

  In the present specification, “purified water treatment” refers to a process for removing unnecessary components such as “calcium” and harmful components such as trihalomethane from tap water to obtain purified water. In addition, the “water purification cartridge” of the invention of each claim may be configured only by a purification member (purification material), and includes the purification member (purification material) and an exterior body that covers the purification member. Also good. Moreover, as this "purification member (purification material, ie, filter material)", (1) Purification member comprised using activated carbon, (2) Purification member comprised using hollow fiber membrane and activated carbon, (3) A purification member composed of ceramic and activated carbon, (4) a reverse osmosis membrane, a purification member composed of activated carbon, and the like.

  In each of the first to fourth aspects of the present invention, the “water discharge support member” may be disposed integrally with the faucet body, or may be disposed separately from the faucet body. Further, as the “water discharge support member” of the invention of each claim, a member that protrudes from the faucet body (particularly a cylindrical member) while providing a “hot water passage” therein can be exemplified. The water discharge support member may be detachable with respect to the faucet body, may be attached in a non-detachable state with respect to the faucet body, or may be provided integrally with the faucet body. Good. The water discharge support member may be provided with a “main body portion (for example, the above-described outer cylinder body) configured in a substantially cylindrical shape or a substantially columnar shape”. It may be comprised using, and may be comprised by the tubular body (for example, hose) inserted in this main-body part. Further, in the latter “embodiment in which the hot water passage is configured by a tubular body”, it is not particularly limited whether or not the tubular body can be pulled out from the main body. In the “embodiment in which the tubular body can be pulled out from the main body”, the water purification cartridge may be pulled out together with the tubular body.

  The “cartridge insertion part” of the invention of each claim constitutes a space part (hereinafter referred to as “insertion space part”) into which the water purification cartridge can be inserted into the water discharge support member. The space shape of the “insertion space” can be determined, for example, in relation to the outer shape of the water purification cartridge. For example, when the water purification cartridge has a substantially cylindrical shape, the insertion space portion can be configured as “a space portion having a substantially cylindrical shape in which the outer shape and the unevenness of the water purification cartridge are reversed”.

  Further, in the case where the water discharge support member includes a “main body portion (for example, an outer cylindrical body described later) configured in a substantially cylindrical shape or a substantially columnar shape”, the “cartridge insertion portion” is directly provided on the main body portion (hereinafter, “ Examples of the former mode ”) and modes in which the“ cartridge insertion portion ”is provided by a separate member inserted into the main body (hereinafter referred to as“ the latter mode ”) can be exemplified. As a specific example of the “former aspect,” a configuration that constitutes a “cartridge insertion portion” by providing an insertion space portion (for example, an insertion hole) that opens at the protruding end portion of the main body portion can be exemplified. Further, as a specific example of the “latter aspect”, a cylindrical body (for example, a bottomed inner cylindrical body having a bottom at the back end) is inserted into the main body (outer cylindrical body), and this cylindrical body is inserted. What constitutes the insertion space portion by the internal space can also be exemplified.

  Examples of the water discharge port member include a water discharge head (such as a shower head), a water discharge pipe, or a “member including these members (water discharge head and water discharge pipe)”. Moreover, although the terminal part of a "water outlet member" can be illustrated as an opening location of a water outlet, this other location (intermediate part etc.) of a water outlet member may be sufficient as this opening location. In the water discharge head (for example, a shower head), the water discharge port can be configured by a water discharge face (for example, a shower face). Moreover, when a water outlet is comprised by several parts (henceforth a "water outlet part"), all the "water outlet parts" may discharge raw water and purified water, or discharge raw water. The spout portion for discharging the purified water and the spout portion for discharging purified water may be provided separately.

  When the water discharge port member is constituted by a water discharge head, the water discharge support member is constituted by a “gripping part (grip part) that removably supports the water discharge head”, and a connected product of the water discharge head and the grip part (grip part). The water discharger can also be configured. In this case, the gripping part (grip part) may be integrated with the faucet body, or may be supported by a support part provided on the faucet body, or a locking tool disposed at a position different from the faucet body. (A hook or the like) may be supported.

  Various aspects of the “biasing means” can be exemplified, and examples thereof include a coil spring, a leaf spring, and an “elastic body configured using rubber or elastomer”. Various biasing forces (elastic constants) generated by the biasing means can be selected. For example, when the pressing of the water purification cartridge by the pressing portion is released, it is desirable that a part of the water purification cartridge (terminal portion along the insertion direction) can be pushed out of the attachment / detachment opening by the urging means. However, even if the water purification cartridge remains in the cartridge insertion portion when the pressing by the pressing portion is released, the end of the water purification cartridge (along the insertion direction) compared to before the pressing by the pressing portion is released. If the distance between the end of the terminal side) and the attachment / detachment port can be reduced, the request for “easy to replace the water purification cartridge” can be satisfied. In addition, if the water purification cartridge jumps out of the cartridge insertion part when the pressing by the pressing part is released, the water adhering to the water purification cartridge or the water in the cartridge insertion part jumps out to the surroundings, or the water purification cartridge is inserted into the cartridge. There is a possibility of jumping out of the department. For this reason, it is desirable that the urging force (elastic constant) generated by the urging means is not excessive.

The faucet of the invention of claim 2 is the faucet of claim 1,
The urging means is a coil spring interposed between an inner wall portion of the cartridge insertion portion and the water purification cartridge.

  According to the second aspect of the present invention, since the urging means is constituted by the coil spring, the “water passage in the cartridge insertion portion” is not narrowed by adding the urging means. In other words, if the urging means is constituted by a coil spring formed by processing a wire, it is possible to secure a gap portion in the urging means itself as compared with the case where the urging means is constituted by a rubber molded product or the like. Easy. Therefore, according to the invention of claim 2, the water purification ability of the water purification cartridge is not lowered while facilitating the replacement work of the water purification cartridge.

The faucet of the invention of claim 3 is the faucet according to claim 1 or 2,
The water discharge member is screwed to the water discharge support member.

  In invention of Claim 3, the connection system which screws and fixes a water discharge port member with respect to a water discharge support member is employ | adopted. For this reason, even if the urging force (elastic constant) generated by the urging means is increased, the amount of rotation of the water discharge port member (the amount of rotation for removing from the water discharge support member) increases or decreases “the amount of protrusion and removal from the water purification cartridge attachment / detachment port”. Can be made to follow. Therefore, even if the urging force (elastic constant) is increased, the water purification cartridge can be prevented from jumping out of the cartridge insertion portion when the pressing by the pressing portion is completely released.

The faucet of the invention of claim 4 is the faucet according to any one of claims 1 to 3,
The said intake part is provided in the outer peripheral part of the said water purification cartridge, It is characterized by the above-mentioned.

  In the invention of claim 4, it is possible to facilitate replacement of the water purification cartridge while improving the water purification efficiency of the water purification cartridge. In other words, when the intake portion is provided on the outer peripheral portion of the water purification cartridge, the surface area of the intake portion can be increased and the water purification efficiency of the water purification cartridge can be improved. However, on the other hand, scales or the like easily adhere to the outer peripheral portion of the water purification cartridge. Become. For this reason, a water purification cartridge may adhere to the inner wall of a cartridge insertion part, and the workability | operativity of the replacement | exchange work of a water purification cartridge may be reduced.

  On the other hand, in the invention of claim 4, even if the water purification cartridge adheres to the inner wall of the cartridge insertion portion, the water purification cartridge is pushed out in the “outside direction of the cartridge insertion portion” by using the urging force of the urging means. be able to. Therefore, according to the invention of claim 4, it is possible to facilitate replacement of the water purification cartridge while improving the water purification efficiency of the water purification cartridge.

The faucet of the invention of claim 5 is the faucet according to any one of claims 1 to 4,
The water discharge support member is disposed in a state protruding from the faucet body,
In the faucet body, a hot water supply path connected to a hot water supply source and a water supply path connected to the water supply source are formed, hot water supplied through the hot water supply path, and water supplied through the water supply path, Is mixed at a predetermined mixing ratio, and a mixing valve that can be discharged through the discharge port is provided,
A raw water passage for connecting the discharge port and the water discharge port and a water purification passage for connecting the water supply passage and the intake section are separately provided.

  According to the invention of claim 5, it is possible to suppress the occurrence of the “problem that harmful substances (trihalomethane etc.) adhering to the purification member (purification material) constituting the water purification cartridge flow out from the water outlet” (that is, To prevent unplanned water discharge of harmful substances). Hereinafter, this point will be described in more detail with reference to FIGS.

  That is, the present inventor completed a water tap as shown in FIGS. 22 and 23 in order to solve the problems of the conventional example (Japanese Patent Laid-Open No. 9-228437). The faucet incorporates a mixing valve 85a capable of mixing hot water and water and has a faucet body 85 including a support portion 85b, a water discharger 86 that is supported by the support portion 85a, and a discharge port of the mixing valve 85a. On the other hand, a shower hose 88 to which a start end (end on the primary side) is connected is provided.

  The water discharger 86 includes a substantially cylindrical grip 86a and a head (shower head) 86b. In addition, a water purification cartridge 86j is inserted into the gripping portion 86a (inserted with play), and “in the gripping portion 86a, the water purification cartridge 86j is disposed on the primary side from the portion where the water purification cartridge 86j is disposed. The terminal portion (secondary side end portion) of the shower hose 88 is connected to the “positioned portion”. And, using the annular space portion formed between the inner wall portion of the gripping portion 86a and the outer wall portion of the water purification cartridge 86j, a “water discharge passage 86d for raw water” is configured, and the space inside the water purification cartridge 86j. The portion (space portion filled with the purification material) constitutes the “water discharge flow path 86e for water purification”.

  Further, the head portion 86b includes a shower face (water discharge port) 86k at an end portion and a valve device 86f for selecting a water discharge channel (water discharge channels 86d, 86e) and the like. Further, a plurality of operation buttons 86g and 86h for operating the valve device 86f are exposed from the outer surface portion of the head portion 86b. When the “raw water spouting operation button 86g” is operated, “hot water supplied through the shower hose 88” is spouted through the raw water spouting passage 86d and the shower face 86k. On the other hand, when the “purified water spouting operation button 86h” is operated, the “hot water supplied through the shower hose 88” is spouted through the water purifying water flow path 86e and the shower face 86k.

  As described above, the faucet shown in FIGS. 22 and 23 has a structure in which the types of hot water discharged from the shower face 86k (purified water and raw water) are switched by the operation buttons 86g and 86h at the tip of the water discharger 86. Further, the water flow path immediately before the “raw water discharge channel 86d” and the “purified water discharge channel 86e” is composed of “one shower hose 88”. Therefore, for example, “when the operation buttons 86g and 86h are operated incorrectly while hot water is discharged from the mixing valve 85a and the hot water is supplied from the shower hose 88 to the water discharger 86” or “the shower hose 88 In the case where hot water stays inside, the hot water may enter from “the intake 861j of the water purification cartridge 86j” toward “inside the water purification cartridge 86j”.

  In such a case, the hot water passes through the water purification cartridge 86j and is discharged from the shower face 86k. At this time, the following problems may occur. That is, the “hazardous substance (trihalomethane etc.) already attached (adsorbed) to the purification member (activated carbon etc.) constituting the water purification cartridge 86j” is transferred from the shower face 86k together with hot water passing through the water purification cartridge 86j. There is a possibility of causing a malfunction that would result in leakage.

  On the other hand, in the invention of claim 5, since the water passage for raw water and the water passage for water purification are isolated and each is a dedicated water passage, “hot water passing through the water passage for raw water” Does not flow into the intake portion (for example, intake port) of the water purification cartridge. In other words, only the “water” that has flowed into the “water purification channel” through the water supply channel flows into the intake portion of the water purification cartridge. Therefore, according to the faucet of the invention of claim 5, it is possible to suppress the occurrence of the “problem that harmful substances (trihalomethane etc.) adhering to the purification material constituting the water purification cartridge flow out from the water outlet” (that is, , Can prevent unplanned water discharge of harmful substances).

  In the invention of claim 5, the mode of the mixing valve (that is, the valve device for temperature adjustment) can be variously selected, and various mixing valves such as a sliding disk type, a thermostat type, and a two-handle type can be exemplified. In addition, the mixing valve may select (i) the “raw water” discharge water, or (ii) “the raw water discharge water selection” and “the raw water discharge amount selection”. It may be what performs. In addition, (i) “Raw water” stop water is provided by a valve device (stop water valve) disposed on the secondary side of the mixing valve (in the middle of the water passage for raw water, or at the outlet). Or (ii) “selection of raw water discharge water” and “selection of raw water discharge amount”. These points (applicable mixing valve modes, functions, etc.) are the same when the faucet of the inventions of claims 1 to 4 is a hot and cold water mixing faucet.

  In the invention of claim 5, the primary side end portion of the “water purification channel” is always communicated with the intermediate portion of the water supply channel, and the “water purification valve” is connected to the middle portion of the water purification channel. An “apparatus” may be provided. In this case, by performing an operation (opening / closing operation) on the “valve device for water purification”, (c) “selection of clean water discharge water” or (d) “selection of clean water discharge water” It is also possible to perform “selection of water discharge amount of purified water”. That is, by performing an operation (opening / closing operation) on this “water purification valve device”, (c) “part located on the primary side of the water purification valve device in the water purification passage” and “ In the valve device for water purification, the portion located on the secondary side of the valve device for water purification may be alternatively communicated, or (b) “in the water passage for water purification, Adjusting the degree of communication between “the part located on the primary side of the valve device” and “the part located on the secondary side of the valve device for water purification in the water purification valve device” (may be non-communication) May be included).

  In the embodiment using this “valve device for water purification”, since “water of the required amount, water supply pressure” is always waiting on the primary side of the mixing valve, When trying to try, the temperature of the mixed water discharged from the water outlet can be immediately set to a desired temperature. That is, in the initial stage of discharging the mixed water, “unexpected hot water (hot water supplied from a hot water supply source or hot water having a temperature close to that)” is not discharged from the water outlet.

  In the invention of claim 5, a “valve device for the water supply channel” may be disposed in the middle portion of the water supply channel. That is, the water supply channel is divided into a “primary water supply channel” located on the primary side of the intermediate portion and a “secondary water supply channel” positioned on the secondary side of the intermediate portion. For convenience, consider separately. In addition, the “primary water supply channel” and the “secondary water supply channel” are connected by the “water supply valve device”, and the “water supply valve device” Connect the end of the primary side of the “pipe for water purification”. Then, by performing an operation (opening / closing operation) on the “valve device for water supply channel”, (a) “selection of purified water discharge water” or (b) “selection of purified water discharge water” ”And“ selection of water discharge amount of clean water ”may be performed. In other words, by performing an operation (opening / closing operation) on the “valve device for the water supply channel”, (a) the primary water supply channel and the water purification channel are selectively communicated with each other. Alternatively, (b) the degree of communication between the primary water supply channel and the water purification channel may be adjusted (including non-communication).

  As this “valve device for water supply channel”, (A) the primary water supply channel unit and the secondary water supply channel unit are connected, and the primary side water supply channel unit and the water purification channel are connected. A state of non-communication, and (B) a state where the primary-side water supply channel and the secondary-side water-supply channel are made non-communication and communicated with the primary-side water-supply channel and the water-purifying channel. Is referred to as a “switching valve”. ) ". However, this “valve device for the water supply channel” connects the primary water supply channel unit and the secondary water supply channel unit to the primary side water supply channel unit and the water purification channel. It may be a “switching valve (hereinafter referred to as“ the latter switching valve ”)” that is in communication or non-communication. In addition, according to the “the latter switching valve”, “the water of the necessary amount and the supply water pressure” is always waiting in the secondary water supply channel section as in the above-mentioned “mode using the water purification valve device”. Therefore, when trying to “spout the mixed water at a predetermined temperature”, the temperature of the mixed water discharged from the spout can be immediately set to a desired temperature.

  Next, an invention related to the invention of claim 5 (hereinafter referred to as “related invention”) will be described.

The faucet of related invention 1 is the faucet according to claim 5,
The water discharge channel connecting the take-out part and the water discharge port and the water flow channel for the raw water merge at a predetermined junction,
A check valve is disposed between the extraction portion and the merging portion.

  In the related invention 1, in the water discharge channel, the raw water and the purified water pass through a portion (hereinafter referred to as “common channel”) located between the junction and the water discharge port. That is, since “a part of the internal flow path” of the water discharge member is used for both raw water discharge and purified water discharge, the structure of the water discharge member can be simplified correspondingly. Moreover, in the invention of claim 2, since the check valve is provided, it is possible to prevent the raw water in the “common path” from flowing backward toward the “water purification cartridge”. That is, according to the second aspect of the invention, it is possible to prevent “backflow of raw water to the water purification cartridge” while simplifying the structure of the water discharging member.

The faucet of related invention 2 is the faucet according to claim 5,
A water discharge channel that communicates the extraction portion and the water discharge port is provided separately from the water flow channel for raw water.

  In the related invention 2, since the water discharge passage and the water passage for raw water are separated, it is possible to reliably prevent “the raw water in the water passage for raw water from flowing backward toward the water purification cartridge”.

The faucet of related invention 3 is the faucet according to any one of inventions of claim 5, related invention 1 and related invention 2,
The faucet body includes a body-side support portion that protrudes in an upwardly inclined manner and supports the proximal end portion of the water discharge support member in an insertion shape,
The internal space of the body side support portion uses a partition wall to form a first water passage portion constituting a part of the raw water passageway and a second passage constituting a part of the water passage for water purification. Divided into waterways,
The water purification cartridge is inserted into the water discharge member in a state of being inserted into an outer case having an inflow port,
The inflow port and the second water passage portion are connected in a watertight manner, and a space portion formed between the outer wall portion of the outer case and the inner wall portion of the water discharge member is formed in the first water passage portion. It is characterized by watertight communication.

  According to the related invention 3, the “outer case” is used to constitute “a partition wall for isolating the water passage for raw water and the purification material”. Therefore, according to the related invention 3, it is not necessary to form “a partition wall for partitioning the internal space of the water discharging member” in the water discharging member, or to make the water discharging member have a double pipe structure. The structure can be simplified.

  As described above, according to the first to fifth aspects of the present invention, the appearance (appearance) is good and the installation space can be saved while incorporating the water purification cartridge, and the maintenance can be facilitated. Can be obtained.

  Next, the best mode (hereinafter referred to as “Example”) of the “water faucet” according to each invention will be described in detail with reference to the drawings. In this embodiment, a hot and cold water mixing tap S will be described as a specific example of the tap of the invention of each claim.

  As shown in FIGS. 1 to 3, the hot and cold water mixing tap S includes a faucet body 10, a first sliding valve device 30, a second sliding valve device 50, and a water discharger 60. The water purification cartridge 70 and the coil spring B are provided. As shown in FIG. 4, the hot and cold water faucet S is used by being installed on a deck portion (a top plate of a sink, etc.) d. Moreover, the hot water supply source H (terminal part of the hot water supply pipe) and the water supply source C (terminal part of the water supply pipe) reach below the deck part (top plate of the sink) d.

  The faucet body 10 is configured by using a casting, and as shown in FIG. 1, a main body portion 11 having a substantially cylindrical outer shape, and a substantially cylindrical shape, and protrudes upwardly from the outer peripheral portion of the main body portion 11. A support portion 12 and an attachment portion (see FIGS. 3 and 6) 13 that are formed in a substantially cylindrical shape and project laterally from the outer peripheral portion of the main body portion 11 are provided. Further, as shown in FIG. 3, a male screw portion 12 a is provided on the outer peripheral portion of the support portion 12.

  As shown in FIG. 3, the internal space of the support portion 12 is divided into upper and lower portions using partition walls 12 b. That is, the internal space of the support portion 12 includes a space portion (hereinafter referred to as “upper space portion”) 12u located above the partition wall 12b and a space portion (hereinafter referred to as “lower space portion”) positioned below the partition wall 12b. It is divided into 12d. The partition 12b constitutes a specific example of the “partition” of the related invention 3. A specific example of the “first water passage portion” of the related invention 3 is configured by the “upper space portion” 12u, and a specific example of the “second water passage portion” of the related invention 3 is formed by the “lower space portion”. An example is constructed.

  The entire “upper space portion 12 u” is opened obliquely upward at the protruding end portion of the support portion 12, and a part of the lower space portion 12 d is opened obliquely upward at the protruding end portion of the support portion 12. That is, the lower space portion 12d is opened obliquely upward by the “substantially columnar connected portion 12e provided at the axial center position of the support portion 12”. Further, a substantially fan-shaped lid portion 12f is disposed in the remaining portion of the lower space portion 12d (the portion where the connected portion 12e is not provided). Further, a mounting groove is provided in the intermediate portion of the connected portion 12e, and a seal member (packing or the like) 12p is mounted in this mounting groove.

  As shown in FIG. 4, a hot water supply channel 20, a water supply channel 21, a branch channel 23, and a discharge channel 25 are provided inside the faucet body 10. In this embodiment, an internal flow path (a hot water supply path 20, a water supply path 21, a branch flow path 23, and a discharge flow path 25) is formed by a cavity (space) provided in the faucet body 10. The internal flow path of the faucet body 10 can also be configured using piping parts such as a hose and a pipe.

  As shown in FIG. 4, the hot water supply channel 20 has a primary end 20 a disposed below the main body 11, and a secondary end 20 b disposed above the main body 11. Yes. The “primary side end portion 20a of the hot water supply passage 20” and the hot water supply source H (terminal portion of the hot water supply pipe) are connected via a hot water supply intermediate pipe 26H. The “secondary end 20b of the hot water supply passage 20” is connected to a hot water supply port 30a of a “first sliding valve device 30” to be described later.

  As shown in FIG. 4, the water supply channel 21 also has a primary end 21 a disposed below the main body 11 and a secondary end 21 b disposed above the main body 11. Yes. The “primary side end portion 21a of the water supply channel 21” and the water supply source C (terminal portion of the hot water supply pipe) are connected via a water supply relay pipe 26C. The “secondary end 21 b of the water supply channel 21” is connected to a water supply port 30 b of a “first sliding valve device 30” described later.

  The first sliding valve device 30 constitutes a specific example of a “mixing valve” and is disposed on the upper end side of the main body 11 as shown in FIG. 3. Further, the “exhaust port 30 c” of the first sliding valve device 30 is connected to the primary side end portion 25 a of the exhaust passage 25 as shown in FIG. 4. As shown in FIG. 3, the first sliding valve device 30 includes a fixed valve body 31 and a movable valve body 32 that slides on the fixed valve body 31.

  The first sliding valve device 30 is operated using an operation lever (see FIG. 1) 35 mounted above the main body 11. And this 1st sliding valve apparatus 30 mixes the hot water supplied through the hot water supply path 20, and the water supplied through the water supply path 21 with a predetermined | prescribed mixing ratio, and is the discharge flow path through the discharge port 30c. 25 can be discharged. Further, the first sliding valve device 30 discharges the hot water supplied from the hot water supply passage 20 to the discharge flow passage 25 as it is, or the water supplied from the water supply passage 21 to the discharge flow passage 25 as it is. It can also be discharged.

  As shown in FIGS. 3 and 4, the discharge flow path 25 includes a flow path section 25 a that descends from the first sliding valve device 30 (as an end on the primary side) and an upper space section 12 u (the first space section). 1 flow path portion 25b). The “secondary side end portion 25d” of the discharge flow path 25 is configured by “an upper end portion (opening portion) of the upper space portion 12u” (see FIG. 3).

  The branch channel 23 constitutes a specific example of the “water purification channel J”. As shown in FIG. 5, the primary side end 23 a is connected to the intermediate portion of the water supply channel 21, and 2 The end 23b on the next side is constituted by “the upper end (opening) of the lower space 12d” (see FIG. 3). Further, as shown in FIG. 6, the internal space 13 a of the attachment portion 13 constitutes a part of the branch flow path 23 (part close to the primary side end portion 23 a). In the following description, a part of the branch flow path 23 that is located on the primary side of the internal space 13a is referred to as a valve front flow path part 23c, and a part of the branch flow path 23 that is located on the secondary side of the internal space 13a is It may be referred to as a post-valve flow path portion 23d.

  As shown in FIG. 6, the second sliding valve device 50 is attached to the attachment portion 13 (internal space 13a). The second sliding valve device 50 includes a housing 51, a fixed valve body 52 disposed in the housing 51, and a movable valve body 53 that can slide with respect to the fixed valve body 52.

  The housing 51 includes an introduction port 51a and an outlet port 51b. The introduction port 51a opens toward the valve front passage portion 23c (connected to the valve front passage portion 23c), and the outlet port 51b is provided after the valve. It opens toward the flow path portion 23d (connected to the post-valve flow path portion 23d).

  The second sliding valve device 50 is operated using a handle 50 h disposed on the side of the attachment portion 13. As a result, the water supply path 21 and the post-valve flow path portion 23d are shut off, and the flow of water from the water supply path 21 into the post-valve flow path portion 23d is stopped, or the water supply path 21 and the post-valve flow path portion 23d To allow water to flow from the water supply passage 21 to the post-valve flow passage portion 23d. Further, the amount of water flowing from the water supply passage 21 to the post-valve flow passage portion 23d is adjusted by adjusting the degree of communication between the pre-valve flow passage portion 23c and the post-valve flow passage portion 23d.

  As shown in FIG. 7, the water discharger 60 includes a gripping part 61 and a head part 62. Moreover, this water discharging tool 60 is arrange | positioned in the state which protrudes from the faucet body 10 with the rear-end part supported by the support part 12 (state which protrudes diagonally up and inclined). In this water discharger 60 and its components, the “close side (that is, the primary side along the water flow direction)” to the faucet body 10 is referred to as “rear” and is “separated from the faucet body 10”. “Side side (that is, secondary side along the water flow direction)” may be referred to as “front”. For example, the “end on the side close to the faucet body 10” may be referred to as “rear end”, and the “end on the side away from the faucet body 10” may be referred to as “front end”.

  The grip 61 is a member that constitutes a specific example of the water discharge support member, and includes an outer cylinder 65 and an inner cylinder 66 as shown in FIG. Among these, as shown in FIG. 8, the outer cylindrical body 65 is a member that constitutes the outer portion of the gripping portion 61, and is configured using a substantially cylindrical body whose outer diameter is substantially constant in the axial direction. Yes. The inner diameter of the outer cylindrical body 65 is reduced in a stepped shape at the rear end (lower end) of the outer cylindrical body 65, but is substantially constant at other portions of the outer cylindrical body 65. In addition, an internal thread portion 65 a that can be screwed into the external thread portion 12 a of the support portion 12 is provided on the inner wall portion of the rear end portion (lower end portion) of the outer cylindrical body 65.

  As shown in FIGS. 8 and 9, the inner cylindrical body 66 is formed in a substantially cylindrical shape with a bottom, and a bottom portion 66 a is disposed at the rear end portion (lower end portion). The inner cylindrical body 66 is inserted inside the outer cylindrical body 65 and constitutes a specific example of the “cartridge insertion portion K” by its internal space.

  As shown in FIGS. 10 and 11, a “substantially cylindrical connection portion 66 c” is provided in a penetrating state at the center of the bottom 66 a (a position where the axis of the inner cylinder 66 passes). That is, the connection portion 66c is substantially cylindrical on both the outer surface of the bottom portion 66a (the surface located on the front side of the inner cylinder body 66) and the inner side surface of the bottom portion 66a (the surface located on the inner side of the inner cylinder body 66). The inside and outside of the inner cylindrical body 66 communicate with each other while protruding. The connecting portion 66c is sized so that the above-described connected portion 12e can be inserted (see FIG. 7). The connecting portion 66c constitutes an “accepting port” for receiving the water supplied from the faucet body 10 via the branch flow path 23 into the inner cylindrical body 66 (that is, the cartridge insertion portion K). To do.

  As shown in FIGS. 10 (a) and 11 (a), a positioning portion 66d protrudes at a location located around the connection portion 66c on the outer surface of the bottom portion 66a. The positioning portion 66d is provided with a positioning hole 66e that opens at the protruding end. In addition, by fitting the positioning hole 66e with a positioning projection (not shown) provided in the support portion 12, the inner cylinder 66 is in contact with the support portion 12 in the axis of the inner cylinder 66. It is in a state of being positioned around the center.

  As shown in FIGS. 10 (b) and 11 (b), substantially arc-shaped protrusions 66f and 66f protrude from two locations located around the connection portion 66c on the inner surface of the bottom 66a. Further, as shown in FIGS. 9 and 10, four ribs 66 h protrude from a portion of the outer peripheral surface of the inner cylindrical body 66 that is located on the rear end side. These ribs 66 h protrude outward in the radial direction of the inner cylindrical body 66 and are provided at equal intervals along the direction around the outer peripheral surface of the inner cylindrical body 66. Note that the diameter of a circle (virtual circle) passing through the projecting ends of the four ribs 66 h is slightly smaller than the inner diameter of the outer cylindrical body 65.

  As shown in FIGS. 8 and 9, a portion on the front end side of the inner cylindrical body 66 is a large-diameter portion 66k having an inner diameter and an outer diameter that are increased in steps. The large-diameter portion 66k is sized so as to be fitted to the outer cylinder 65 described above (see FIG. 7). Further, a flange portion 66m is formed in a portion located behind the large diameter portion 66k in the outer peripheral portion of the inner cylindrical body 66, and a gap portion formed between the rear end portion of the large diameter portion 66k and the flange portion 66m. Accordingly, a mounting groove that circulates around the outer peripheral portion of the inner cylindrical body 66 is formed. A sealing member (packing) 66p is mounted in the mounting groove.

  As shown in FIG. 9, in the inner cylindrical body 66, a communication hole 66r is provided in a rear portion (right portion) of the seal member 66p (see also FIG. 13). The communication hole 66r has a substantially arc-shaped opening shape while penetrating the inner cylindrical body 66 in the thickness direction. Further, as shown in FIG. 8, a female screw portion 66s is formed on the inner wall of the large diameter portion 66k. The female screw portion 66s is used for connecting a head 62 described later to the grip portion 61 (inner cylinder 66).

  The gripping portion 61 (the outer cylinder body 65 and the inner cylinder body 66) configured as described above is attached to the faucet body 10 as follows. First, the inner cylindrical body 66 is attached to the faucet body 10 by fitting the connecting portion 66c of the inner cylindrical body 66 into the connected portion 12e. As a result, the inner cylindrical body 66 is projected from the faucet body 10 in an “obliquely inclined manner”, and the branch flow path 23 communicates with the inside of the inner cylindrical body 66 (cartridge insertion portion K). (See FIG. 7). At this time, the watertightness between the connecting portion 66c and the connected portion 12e is ensured by the seal member (packing or the like) 12p. Further, the positioning projection (not shown) of the support portion 12 is fitted into the positioning hole 66e, and the inner cylindrical body 66 is positioned around its axis.

  Thereafter, the outer cylinder body 65 is attached to the faucet body 10 by inserting the inner thread body 66a into the outer thread body 12a of the support section 12 while inserting the inner cylinder body 66 into the outer cylinder body 65. (See FIG. 7). At this time, the protruding ends of the four ribs 66h of the inner cylinder 66 abut on the “lower end side of the inner wall portion of the outer cylinder 65”, and the large diameter portion 66k is “the upper end side of the inner wall portion of the outer cylinder 65”. , The axial center positions of the outer cylinder body 65 and the inner cylinder body 66 are aligned, and “rattle” of the inner cylinder body 66 is prevented (see FIG. 10). An annular space (hereinafter referred to as “intermediate water passage section”) 67 is formed between the inner wall of the outer cylinder 65 and the outer wall of the inner cylinder 66. The intermediate water passage portion 67 is a portion constituting the “intermediate portion of the water passage G for raw water”, and the “primary side end portion (rear end portion)” is the above-described upper space portion (first portion). Of water passage) 12u.

  As described above, when the outer cylinder 65 is attached to the faucet body 10, the opening on the front end side of the inner cylinder 66 is disposed at a position slightly retracted from the opening on the front end side of the outer cylinder 65. . For this reason, in this embodiment, a specific example of the “detachable opening M” is configured by the opening on the front end side of the outer cylindrical body 65 (see FIG. 7). Differently, a specific example of the “detachable opening M” can be configured by the opening on the front end side of the inner cylindrical body 66. When the head portion 62 is attached to the gripping portion 61, the “secondary side end portion (front end portion)” of the intermediate water passage 67 is connected to the raw water discharge water passage 62m (via the communication hole 66r of the inner cylindrical body 66). To be described later). The branch flow path 23 and the cartridge insertion portion K are connected to a purified water discharge path 62n (described later).

  As shown in FIG. 7, the water purification cartridge 70 has a substantially cylindrical outer shape, and is inserted into the cartridge insertion portion K in a state where the axis is aligned with the axis of the inner cylinder 66 (cartridge insertion portion K). ing. As shown in FIG. 8, the water purification cartridge 70 includes a purification member (purification material) 72j configured in a substantially columnar shape, and an exterior body 72a that covers the front half side of the purification member 72j. Moreover, the exterior body 72a is comprised by the substantially cylindrical shape provided with the cover part 72c in the front-end part. At a substantially central portion of the lid portion 72c, an outlet 72f that communicates the inside and outside of the exterior body 72a is formed. The outlet 72f constitutes a specific example of an “extraction portion” of the water purification cartridge 70. The outlet 72f is formed in a substantially cylindrical shape protruding in a direction away from the purification member 72j. Further, a circumferential groove is provided in the outer peripheral portion of the outlet 72f, and a sealing member (packing or the like) 72p is attached to the circumferential groove.

  A disc-shaped plate member 72d is attached to the rear end surface of the purification member 72j. The plate member 72d is formed with an intake 72e that communicates in the thickness direction. The intake 72e is formed in a substantially cylindrical shape protruding in a direction away from the purification member 72j. Of the outer peripheral portion of the purification member 72j, the portion not covered with the exterior body 72a (the second half side of the outer peripheral portion of the purification member 72j) 721a and the intake port 72e are respectively the “intake portion” of the water purification cartridge 70. A specific example is configured.

  The purification member (purification material) 72j is composed of “a hollow fiber membrane that is covered with the exterior body 72a while constituting the front half (the part close to the water discharge port)” and “the latter half (the side that is separated from the water discharge port). A fibrous activated carbon constituting a portion of However, the fibrous activated carbon is in a state where its outer peripheral portion is covered with a filter 72g using a nonwoven fabric.

  As shown in FIG. 7, the coil spring B is configured such that when the water purification cartridge 70 is inserted into the cartridge insertion portion K (inner cylinder body 66), the rear end surface (plate member 72 d) of the water purification cartridge 70 and the bottom portion of the inner cylinder body 66. The water purification cartridge 70 is urged to the outside of the cartridge insertion portion K by being interposed in a compressed state between the water supply cartridge 66a. In the coil spring B, the rear end is brought into contact with the bottom 66a, the front end is brought into contact with the rear end surface of the water purification cartridge 70, and the projections 66f and 66f are further inserted on the rear end side. It is interposed between the rear end surface (plate member 72d) and the bottom 66a of the inner cylinder 66. That is, the rear end portion side of the coil spring B is inserted into the space between the inner peripheral portion of the inner cylindrical body 66 and the outer peripheral portions of the protrusions 66f and 66f (FIGS. 14 and 15). See).

  In this embodiment, the sum of the “free height (H) of the coil spring B” and the “axial length (h) of the water purification cartridge 70” is “the distance between the bottom 66a of the inner cylindrical body 66 and the attachment / detachment port M”. (T) ”(see FIG. 20A). For this reason, when an external force (pressing force from the head 62 described later) is not applied to the water purification cartridge 70, the front end portion of the water purification cartridge 70 is exposed to the outside of the grip portion 61 through the attachment / detachment port M.

  The head portion 62 constitutes a specific example of the water discharge member. As shown in FIG. 12, the main body portion 62a, the raw water discharge pipe 62b depending from the front end side of the main body portion 62a, and the front end of the main body portion 62a. A clean water discharge pipe 62c hanging from the side and a joint part 62d connected to the rear end part of the main body part 62a are provided. Among these, the raw | natural water discharge channel 62m and the purified water discharge channel 62n are formed in the inside of the main-body part 62a in the state divided by the partition. The raw water discharge pipe 62b has a primary side end connected to a secondary side end of the raw water discharge path 62m, and a secondary side end (lower end) opened to the outside. And the raw | natural water discharge port 62w is comprised by the edge part (lower end part) of the secondary side of this raw | natural water discharge pipe 62a. The purified water discharge pipe 62c has a primary side end connected to a secondary side end of the purified water discharge path 62n and a secondary side end (lower end) opened to the outside. And the purified water outlet 62v is comprised by the edge part (lower end part) of the secondary side of this purified water discharging pipe 62c. The raw water outlet 62w and the purified water outlet 62v constitute a specific example of “a water outlet”.

  On the outer peripheral surface on the rear end side of the main body portion 62a, a male screw portion 62h that can be screwed into the aforementioned female screw portion 66s (the female screw portion 66s of the large diameter portion 66k) is formed. Further, on the outer peripheral surface of the main body 62a, a circumferential groove is provided immediately after the male screw portion 62h (a position behind the male screw portion 62h), and a seal member (packing) 62i is attached to the circumferential groove. Has been.

  The joint portion 62d is inserted into the rear end portion of the main body portion 62a and integrated with the main body portion 62a. The joint portion 62d includes a joint body 62q configured in a substantially cylindrical shape with a lid, a flange portion 62r protruding from the outer peripheral surface on the rear end side of the joint body 62q, and a front end surface (lid portion) of the joint body 62q. 62s protruding from the center. The insertion cylinder 62s has its axis decentered from the axis of the joint body 62q, and communicates the internal space with the internal space of the joint body 62q. Further, a seal member (packing) 62t is mounted in the circumferential groove of the outer peripheral portion of the insertion cylinder 62s, and the seal member (packing) 62t is used between the primary end of the purified water discharge channel 62n and the insertion cylinder 62s. The water-tight state of is secured. In addition, a circumferential groove is provided in the flange portion 62r, and a sealing member (packing) 62u is also attached to this circumferential groove. The size of the flange 62r with the seal member (packing) 62u attached is a size that can be fitted to a portion of the inner cylindrical body 66 located on the back side (rear side) of the large-diameter portion 66k. It is said.

  The head portion 62 is engaged with the “portion 62r in a state where the seal member 62u is attached” to the “portion located on the back side (rear side) of the large diameter portion 66k in the inner cylindrical body 66” (that is, The male threaded part 62h is screwed into the female threaded part 66s and is integrated with the gripping part 61 by inserting the collar part 62r into the inner cylindrical body 66 in a watertight manner. At this time, since the rear end surface E of the flange portion 62r presses the water purification cartridge 70 in the “inward direction of the cartridge insertion portion K”, the coil spring B is compressed by the bottom 66a and the rear end portion (bottom surface) of the water purification cartridge 70. It will be in a bent state (compressed state) (see FIG. 7). The rear end surface E of the flange portion 62r constitutes a specific example of a “pressing portion”. Further, when the head portion 62 is connected to the grip portion 61, “the outlet 72 f of the water purification cartridge 70” is fitted inside the flange portion 62 r. This fitting is performed in a press-fitted state using the elasticity of the seal member (packing or the like) 72p attached to the outlet 72f. Therefore, if the seal member (packing or the like) 72p has sufficient elasticity (deteriorates). If not, the water purification cartridge 70 is firmly connected to the head 62. The operation of connecting the head 62 to the gripping portion 61 is as follows. (1) The head 62 is screwed to the gripping portion 61 in a state where the water purification cartridge 70 is inserted into the inner cylindrical body 66 (cartridge insertion portion K) in advance. (2) After the water purification cartridge 70 is attached to the head 62, the head 62 integral with the water purification cartridge 70 may be screwed into the grip portion 61. Good.

  As described above, when the head 62 is connected to the gripping portion 61, as shown in FIGS. 12 and 13, the “secondary side end” of the intermediate water passage 67 passes through the communication hole 66 r of the inner cylindrical body 66. And the cartridge insertion part K is connected to the purified water discharge path 62n via the joint part 62d. Thereby, this water faucet S will be in a usable state.

  In this embodiment, as shown in FIG. 4, the “water channel G for raw water” is “the discharge channel 25 (channel unit 25 a and channel unit 25 b) in the faucet body 10” and the intermediate channel. A section 67, a raw water discharge channel 62m, and a raw water discharge pipe 62b are provided. Then, when the first sliding valve device 30 is opened using the operation lever 35, “raw water A that has passed through the raw water passage G” is discharged from the raw water outlet 62 w.

  Further, as shown in FIG. 5, the “purifying water passage J” is constituted by a branch flow passage 23 in the faucet body 10, and the secondary end of the water purifying water passage J (connected) The portion 12e) is connected to the inlet (connecting portion 66c) of the inner cylindrical body 66 in a watertight manner. For this reason, in the hot water and water mixing tap S, the “water passage G for raw water” and the “water passage J for water purification” are in an isolated state (separated in a substantially watertight manner). Yes. When the second sliding valve device 50 is opened using the handle 50h, the “water that has passed through the water purification passage J” passes through the water purification cartridge 70 and becomes purified water D. Then, water is discharged from the purified water outlet 62v through the internal space of the joint portion 62d, the purified water discharge passage 62n, and the purified water discharge pipe 62c.

  In this embodiment, when the water purification cartridge 70 is replaced, first, the screwing of the male screw portion 62h with the female screw portion 66s is released, and the head 62 is removed from the grip portion 61. At this time, “the seal member (packing or the like) 72p attached to the outlet 72f has not yet deteriorated, has sufficient elasticity, and the water purification cartridge 70 does not attempt to adhere to the inner cylinder 66. In the “case”, as shown in FIG. 14, the water purification cartridge 70 can be detached from the grip portion 61 integrally with the head portion 62. In other words, using the elasticity of the sealing member (packing or the like) 72p, the press-fitted state of the outlet 72f into the flange portion 62r is secured, and the water purification cartridge 70 is attached to the inner cylindrical body 66 due to the influence of scale or the like. In the case of not trying, the “head 62 in a state where the water purification cartridge 70 is integrally held” can be removed from the grip 61.

  On the other hand, when the screwing of the male screw portion 62h to the female screw portion 66s is released and the head 62 is removed from the gripping portion 61, the seal member (packing or the like) 72p is deteriorated and its elasticity is reduced, For example, when the water purification cartridge 70 is about to adhere to the inner cylinder 66, only the head 62 is removed from the gripping portion 61 as shown in FIG. 15. That is, only the head 62 is removed from the gripping portion 61 with the water purification cartridge 70 left in the cartridge insertion portion K.

  However, in this case, since the “pressing of the rear end surface E (pressing portion) E of the flange 62r to the water purification cartridge 70” is released, the water purification cartridge 70 uses the elasticity (restoring force) of the coil spring B. Pushed out (biased) to the outside of the insertion portion K. For this reason, the front end portion of the water purification cartridge 70 is exposed to the outside of the grip portion 61 through the attachment / detachment port M. Therefore, the operator can grasp the front end portion of the water purification cartridge 70, take out the water purification cartridge 70 from the cartridge insertion portion K, and replace it with a new one.

  According to the present embodiment, since the water purification cartridge 70 is disposed in the grip portion 61 (water discharge support member), it is not necessary to externally attach the water purification cartridge 70 to the faucet body 10. For this reason, the appearance (appearance) is good and the installation space can be saved. Moreover, according to the hot and cold water mixing tap S of the present embodiment, the water purification cartridge 70 can be exchanged smoothly, so that maintenance can be facilitated. That is, when the head (water outlet member) 62 is removed from the grip portion 61, even if the water purification cartridge 70 remains in the cartridge insertion portion K, at the stage of removing the head (water outlet member) 62, “Restriction by the head 62 with respect to the water purification cartridge 70” is released. For this reason, the water purification cartridge 70 is pushed in the direction of “outside of the cartridge insertion portion K” by the biasing force of the coil spring (biasing means) 80. In other words, if the head 62 is removed, the urging force of the coil spring B brings the water purification cartridge 70 closer to the operator's hand, so that the replacement operation of the water purification cartridge 70 can be performed smoothly. Maintenance can be facilitated.

  Further, in this embodiment, since the urging means is constituted by the coil spring B, the “water passage in the cartridge insertion portion K” is not narrowed due to the addition of the urging means. Therefore, according to the present embodiment, the water purification ability of the water purification cartridge 70 is not lowered while the replacement work of the water purification cartridge 70 is facilitated.

  Further, in the present embodiment, a connection method is adopted in which the head 62 is screwed and fixed to the grip portion 61. For this reason, even if the urging force generated by the coil spring B is increased, the “in / out amount from the attachment / detachment port M of the water purification cartridge 70” is increased or decreased to increase or decrease the rotation amount of the head 62 (rotation amount for removal from the grip portion 61). Can be followed. Therefore, even if the urging force of the coil spring B is increased, the water purification cartridge 70 does not jump out of the cartridge insertion portion K when the pressing by the pressing portion (the rear end surface E of the flange portion 62r) is completely released. Absent.

  Further, in this embodiment, it is possible to facilitate the replacement work of the water purification cartridge 70 while ensuring the water purification efficiency of the water purification cartridge 70. That is, in this embodiment, even if the water purification cartridge 70 adheres to the inner wall of the cartridge insertion portion K, the water purification cartridge 70 can be pushed out of the cartridge insertion portion K using the urging force of the coil spring B. For this reason, the intake part (721a) is provided also in the outer peripheral part of the water purification cartridge 70, and the total surface area of the intake part (72e, 721a) is expanded actively, and the water purification efficiency of the water purification cartridge 70 is improved.

  Furthermore, in the hot and cold water mixing faucet S of the present embodiment, the water passage G for raw water and the water passage J for water purification are isolated and each is a dedicated water passage. The hot water passing through the water does not flow into the intake 72 e of the water purification cartridge 70. In other words, only “water” that has flowed into the “water purification passage J” through the water supply passage 21 flows into the intake 72 e of the water purification cartridge 70. Therefore, according to the hot and cold water mixing faucet S of the present embodiment, the occurrence of “a trouble that harmful substances (trihalomethane etc.) adhering to the purification member 72j constituting the water purification cartridge 70 flows out from the water purification outlet 62v” is suppressed. can do.

  Further, according to the present embodiment, the “inner cylinder 66” is used to constitute “a partition wall for isolating the raw water passage G and the purification member 72j. Accordingly, the internal structure in the water discharger 60” Can be simplified.

  The scope of each invention is not limited to the specific modes shown in the above-described embodiments, and various modifications can be exemplified within the scope of each invention.

  That is, in the present embodiment, the mode in which purified water and raw water are discharged from separate water outlets (raw water outlet 62w, purified water outlet 62v) is exemplified, but as in Modification 1 shown in FIGS. Clean water and raw water may be discharged from a common outlet. That is, the first modification has the same configuration as that of the embodiment except that the configuration of the head 62 is different.

  That is, in the first modification, the front end portion of the head 62 is configured by the water discharge face 162b. The water discharge face 162b includes a large through-hole 162c located at the center and a plurality of through-holes 162d located around the periphery. These through holes (162c, 162d) are provided in a state of penetrating the water discharge face 162b in the thickness direction, and constitute a specific example of the “water discharge port”. In addition, a common path 162j is formed inside the head 62, and the common path 162j passes through the raw water just before reaching the water discharge face 162b and the purified water just before reaching the water discharge face 62b. That is, the secondary side end of the common path 162j is connected to the through holes 162c and 162d (that is, the water discharge port).

  In the first modification, the “secondary side end (front end)” of the intermediate water passage portion 67 is connected to the “primary side of the common passage 162j via the relay water passage portion 168 (see FIG. 17). Is connected to the "end of". Further, inside the head portion 62, a purified water discharge passage 162t is provided for connecting the cartridge insertion portion K (inner cylinder 66) and the common passage 162j.

  In the first modified example, the “water channel G for raw water” includes “the discharge channel 25 (channel unit 25a and channel unit 25b) in the faucet body 10”, the intermediate channel unit 67, and the relay. A water passage section 168 and a common path 162j are provided. When the first sliding valve device 30 is opened using the operation lever 35, the “raw water A that has passed through the raw water passage G” is discharged from the water discharge face 162b.

  As shown in FIG. 18, the secondary end (removal port M) of the cartridge insertion portion K (inner cylinder 66) discharges water through the purified water discharge passage 162t and the common passage 162j in the head 62. It is connected to the face 162b. For this reason, when the second sliding valve device 50 is opened using the handle 50h, “water that has passed through the water purification passage J” passes through the water purification cartridge 70 and becomes purified water D. After that, water is discharged from the water discharge face 162b through the purified water discharge channel 162t and the common channel 162j.

  According to the first modification, the same effect as in the embodiment can be obtained. In Modification 1, as shown in FIG. 19, a check valve 78 may be provided on the secondary side of the water purification cartridge 70 (secondary side of the cartridge insertion portion K) (hereinafter, FIG. 19). The specific example shown in FIG. That is, in the second modified example, the purified water discharge channel 162t and the relay water channel unit 168 merge at the junction H (primary side end of the common channel 162j) in the water discharge head 60. And in the modification 2, the check valve 78 is arranged in the site | part (site located between the attachment / detachment port M and the junction part H) located in the primary side rather than the junction part H among the purified water discharge channels 162t. Has been established. And according to this modification 2, the structure of the water discharge head 60 can be simplified, and "back flow to the raw water purification cartridge 70" can be prevented.

  Further, in the embodiment, the first modification, and the second modification, as illustrated in FIG. 20A, the biasing means configured using the coil spring B is used as the bottom 66 a of the inner cylindrical body 66 and the water purification cartridge 70. Although the aspect which interposed in a compressed state between the rear-end part (bottom surface) was illustrated, the aspect of a biasing means is not limited to the coil spring B. FIG. For example, as in Modification 3 shown in FIG. 20B, the elastic body (for example, a substantially cylindrical elastic body) 800 made of rubber or elastomer may be used. In this case, it is desirable to provide a hole-shaped or notched water-permeable portion 801 in the elastic body 800. This is because, in the cartridge insertion portion K (inner cylinder 66), the portion of the water flow portion 801 is secured as a space portion, and a sufficiently large water flow path can be secured by the space portion.

  The present invention can be used, for example, in the field of manufacturing, selling, installing, processing and the like of faucets.

It is a schematic side view of the hot and cold water mixing faucet of an example. It is a front view of the hot and cold water mixing faucet of an example. It is a principal part longitudinal cross-sectional view of the hot / cold water faucet of an Example. It is explanatory drawing for demonstrating the flow-path structure of the hot and cold water mixing faucet of an Example. It is explanatory drawing for demonstrating the flow-path structure of the hot and cold water mixing faucet of an Example. It is a longitudinal cross-sectional view for demonstrating a 2nd sliding valve apparatus. It is a principal part expansion longitudinal cross-sectional view of the hot-water and water mixing tap of an Example. It is a principal part exploded longitudinal cross-sectional view of the holding part of an Example. It is a side view of the inner cylinder which comprises the holding part of an Example. (A) is 1-1 sectional drawing of FIG. 9, (b) is 2-2 sectional drawing of FIG. (A) is 3-3 sectional drawing of FIG.10 (b), (b) is 4-4 sectional drawing of FIG.10 (b). It is a longitudinal cross-sectional view for demonstrating the head of an Example. It is 5-5 sectional drawing of FIG. It is explanatory drawing etc. about the replacement | exchange method of a water purification cartridge. It is explanatory drawing etc. about the replacement | exchange method of a water purification cartridge. It is a principal part expansion longitudinal cross-sectional view of the hot-water / water mixing tap of the modification 1. It is explanatory drawing for demonstrating the flow-path structure of the hot and cold water mixing faucet of the modification 1. It is explanatory drawing for demonstrating the flow-path structure of the hot and cold water mixing faucet of the modification 1. It is explanatory drawing for demonstrating the modification 2. FIG. (A) is explanatory drawing for demonstrating an Example, (b) is explanatory drawing for demonstrating the modification 3. FIG. It is explanatory drawing for demonstrating the hot-and-water mixing tap (invention example) which this inventor invented before this application. It is explanatory drawing for demonstrating the hot-and-water mixing faucet (other improvement example) which this inventor invented before this application. It is explanatory drawing for demonstrating the flow-path structure of the hot-water and water mixing faucet (other improvement examples) which this inventor invented before this application. It is a front view for demonstrating the hot / cold water mixing tap which concerns on a prior art example.

Explanation of symbols

S: Mixing tap for hot water and water,
B: Coil spring (biasing means),
C: Water supply source
H: Hot water source
G: Water channel for raw water,
J: Water passage for water purification (branch channel 23)
H;
K: cartridge insertion part,
10; faucet body,
30; first sliding valve device (mixing valve),
12; support part,
12d; lower space (second water passage),
12u; upper space (first water passage),
20; Hot water supply path,
21; water supply channel,
60; faucet,
61; gripping part (water discharge support member),
62; head (spout member),
62v, 62w; spout,
70; water purification cartridge,
71c; connection part (inlet),
72j; purification member,
72e; intake (intake section),
721a; a portion of the outer peripheral portion of the purification member 72j that is not covered with the exterior body 72a (intake portion),
72f; outlet (extraction part),
78; Check valve.

Claims (5)

A faucet body,
A water discharge support member provided with a cartridge insertion portion capable of receiving water supplied from the faucet body;
A spout member mounted on the spout support member and having a spout opening at a predetermined site;
An intake portion that is inserted into the cartridge insertion portion through the attachment / detachment opening provided in the water discharge support member and is attached to the water discharge support member, and an intake portion for taking in the water received in the cartridge insertion portion, and an intake at the intake portion A water purification cartridge comprising: a purification member for subjecting the water to a water purification treatment; and a take-out portion for taking out the water subjected to the water purification treatment by the purification member;
A water faucet capable of discharging water taken out from the take-out part through the water outlet,
The cartridge insertion portion is provided with a biasing means for loading a biasing force toward the outside of the cartridge insertion portion with respect to the water purification cartridge,
The faucet according to claim 1, wherein the water outlet member is provided with a pressing portion for pressing the water purification cartridge loaded with the urging force toward the inside of the cartridge insertion portion.   The faucet according to claim 1, wherein the biasing means is a coil spring interposed between an inner wall portion of the cartridge insertion portion and the water purification cartridge.   The faucet according to claim 1 or 2, wherein the water discharge port member is screwed and connected to the water discharge support member.   The faucet according to any one of claims 1 to 3, wherein the intake portion is provided on an outer peripheral portion of the water purification cartridge. The water discharge support member is disposed in a state protruding from the faucet body,
In the faucet body, a hot water supply path connected to a hot water supply source and a water supply path connected to the water supply source are formed, hot water supplied through the hot water supply path, and water supplied through the water supply path, Is mixed at a predetermined mixing ratio, and a mixing valve that can be discharged through the discharge port is provided,
The raw water passage for connecting the discharge port and the water discharge port and the water passage for water purification for connecting the water supply passage and the intake section are provided separately. Item 5. The faucet according to any one of Items 1 to 4.

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