JP2019120113A - Water discharging head with water purifying function, water purification cartridge and faucet device - Google Patents

Abstract

To provide a water purification cartridge capable of preventing misunderstanding about water discharge.SOLUTION: A water discharging head 8 comprises: a switching mechanism capable of switching water discharge from a discharge port, from raw water to purified water; a regulation member RG1 that enables mutual transition between a first state J1 and a second state J2 and that regulates switching from raw water to purified water in the first state J1 while allowing switching from raw water to purified water in the second state J2; and a water purification cartridge PC1 having a regulation release part DR1 for shifting the regulation member RG1 from thee first state J1 to the second state J2. When the water purification cartridge PC1 is not mounted, the regulation member RG1 is in the first state J1 and when the water purification cartridge PC1 is mounted, the regulation member RG1 is in the second state J2.SELECTED DRAWING: Figure 8

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a water discharge head with a water purification function, a water purification cartridge, and a water faucet device.

  There is known a water spouting head which incorporates a water purification cartridge and has a water purification function. Japanese Patent No. 3454756 discloses a shower head with a water purification function capable of switching between a raw water flow passage which does not pass through the water purification cartridge and a water purification flow passage which passes through the water purification cartridge.

Patent No. 3454756

  A water spouting head of this type or a water faucet device having the water spouting head has an operation unit that enables switching between raw water and purified water. A push button, a lever, a dial, etc. are illustrated as this operation part. In addition, a display unit may be provided to display whether the water discharge is raw water or purified water.

  Through operation, display, etc., the user can recognize whether the water discharge is raw water or clean water. A state in which the water purification cartridge is not contained may occur due to the forgetting to insert the water purification cartridge or the like, but even in this state, the user may use the faucet while misunderstanding that the water purification is out. That is, despite the fact that raw water is being discharged, it may be misidentified as being out of water.

  An object of the present invention is to provide a water discharge head and a water purification cartridge which can prevent misidentification of water discharge.

  The preferable water discharging head with water purification function is capable of mutual transition between the first state and the second state, and a switching mechanism capable of switching whether the water spouted from the discharge port is raw water or purified water, and the first state Then, the control member restricts the switching from the raw water to the clean water by the switching mechanism, and in the second state, restricting the switching from the raw water to the clean water by the switching mechanism, and the restricting member from the first state to the first state It has a water purification cartridge which has a regulation cancellation part made to shift to 2 states, and a cartridge mounting part. The regulating member is in the first state when the water purification cartridge is not attached to the cartridge attachment unit, and when the water purification cartridge is attached to the cartridge attachment unit, the regulation member is released due to the restriction releasing unit. It becomes said 2nd state.

  Preferably, the restricting member has a switching restricting portion in the first position in the first state and in the second position in the second state. Preferably, in the process of switching from raw water to clean water by the switching mechanism, the switching regulating portion in the first position abuts on an interlocking contact portion interlocking with the switching mechanism. Preferably, the switching regulating portion in the second position does not abut on the interlocking contact portion in the process of switching from raw water to clean water by the switching mechanism.

  Preferably, when the restriction release portion abuts on the restriction member, the restriction member shifts from the first state to the second state.

  Preferably, the restriction member is rotatably fixed. Preferably, the mutual transition between the first state and the second state is achieved by rotation of the restriction member.

  A preferred water faucet apparatus is provided with the water discharge head.

  In the preferred water purification cartridge, the discharge port, a switching mechanism capable of switching whether the spouted water from the discharge port is raw water or purified water, and mutual transition between the first state and the second state are possible. A spout head with a water purification function, comprising: a regulation member that regulates switching from raw water to clean water by the mechanism and allows switching from raw water to clean water by the switching mechanism in the second state; and a cartridge mounting portion It is a water purification cartridge that can be attached. Preferably, the water purification cartridge has a water purification function unit, and a restriction release unit that shifts the restriction member from the first state to the second state.

  Preferably, the restriction release portion can shift the restriction member from the first state to the second state by abutting on the restriction member.

  Preferably, the restriction release portion is a downstream end surface of the water purification cartridge.

  Preferably, the water purification cartridge has a connection end that constitutes the downstream end of the water purification cartridge. Preferably, the cartridge mounting portion has an insertion portion into which the connection end portion is inserted. Preferably, the connection end has a gap forming portion that forms a gap with the insertion portion. Preferably, the end face of the gap forming portion is the restriction releasing portion.

  Preferably, the connection end further includes an O-ring disposed upstream of the restriction releasing part, and a wall part disposed between the restriction releasing part and the O-ring. Preferably, the radially outermost portion of the restriction releasing portion is located radially inward of the radially outermost portion of the wall portion.

  Misperception of water discharge is prevented.

FIG. 1 is a perspective view of the water faucet apparatus according to the first embodiment. FIG. 2 is a front view of a water discharge head in the water faucet apparatus of FIG. Fig.3 (a) is sectional drawing along the AA line of FIG. 2, FIG.3 (b) is sectional drawing along the BB line of FIG. Fig.3 (a) and FIG.3 (b) are sectional drawings of a raw water discharge state. 4 (a) is a cross-sectional view taken along the line AA of FIG. 3 (a), and FIG. 4 (b) is a cross-sectional view taken along the line BB of FIG. 3 (a). Fig.5 (a) is sectional drawing corresponding to Fig.3 (a), and is sectional drawing in a purified water discharge state. FIG.5 (b) is sectional drawing corresponding to FIG.3 (b), and is sectional drawing in a purified water discharge state. Fig.6 (a) is sectional drawing corresponding to Fig.4 (a), and is sectional drawing in a purified water discharge state. FIG.6 (b) is sectional drawing corresponding to FIG.4 (b), and is sectional drawing in a purified water discharge state. 7 is an exploded perspective view of the water faucet apparatus of FIG. Fig.8 (a) is an expanded sectional view in the raw water discharge state of the water discharging head of 1st Embodiment, FIG.8 (b) is an expanded sectional view in a switching control state. Drawing 8 (a) and Drawing 8 (b) are the sectional views in the state where a water purification cartridge is not equipped. Fig.9 (a) is an expanded sectional view in the raw water discharge state of the water discharging head of 1st Embodiment, FIG.9 (b) is an expanded sectional view in a switching control state. Fig.9 (a) and FIG.9 (b) are sectional drawings in the state in which the water purification cartridge is not mounted | worn. Fig.10 (a) is sectional drawing to which a part of FIG.3 (b) was expanded. FIG.10 (b) is sectional drawing to which a part of FIG.5 (b) was expanded. Fig.11 (a) and FIG.11 (b) are sectional drawings which show the state just before mounting a water purification cartridge in a regular position. The cross-sectional position of FIG. 11 (a) is the same as FIG. 3 (a). The cross-sectional position of FIG. 11 (b) is the same as FIG. 3 (b). Fig.12 (a) is a perspective view of the control member based on 1st Embodiment, FIG.12 (b) is a top view of this control member, FIG.12 (c) is a side view of this control member. FIG. 13 (a) is a perspective view of the ball holder according to the first embodiment, FIG. 13 (b) is a plan view of the ball holder, and FIG. 13 (c) is a side view of the ball holder. It is. Fig.14 (a) is a perspective view of the water purification cartridge which concerns on 1st-4th embodiment, FIG.14 (b) is a side of this water purification cartridge, FIG.14 (c) is a top view of this water purification cartridge . FIG. 15 is a perspective view of a water faucet apparatus according to a second embodiment. FIG. 16 is a front view of the spouting head in the water faucet apparatus of FIG. 15; FIG. 17 is a cross-sectional view taken along the line AA of FIG. FIG. 18 is a cross-sectional view taken along the line A-A of FIG. FIG. 19 is a cross-sectional view corresponding to FIG. 17 and is a cross-sectional view in the state of water discharge. FIG. 20 is a cross-sectional view taken along the line AA of FIG. FIG. 21 is an exploded perspective view of the water faucet apparatus of FIG. Fig.22 (a) is an expanded sectional view in the raw water discharge state of the water discharging head of 2nd Embodiment, FIG.22 (b) is an enlarged sectional view in the switching control state of the water discharging head. Drawing 22 (a) and Drawing 22 (b) are the sectional views in the state where a water purification cartridge is not equipped. Fig.23 (a) is an expanded sectional view in the raw water discharge state of the water discharging head of 2nd Embodiment, FIG.23 (b) is an enlarged sectional view in the switching control state of the water discharging head. Fig.23 (a) and FIG.23 (b) are sectional drawings in the unmounted state. Fig.24 (a) is sectional drawing to which a part of FIG. 17 was expanded, FIG.24 (b) is sectional drawing to which a part of FIG. 19 was expanded. Fig.25 (a) is a perspective view of the control member based on 2nd Embodiment, FIG.25 (b) is a top view of this control member, FIG.25 (c) is a side view of this control member. FIG. 26 is a perspective view of a water faucet apparatus according to a third embodiment. Fig.27 (a) is a front view in the raw water discharge state of the water discharging head which concerns on 3rd Embodiment, FIG.27 (b) is a front view in the switching control position of this water discharging head. c) is a front view of the water discharge head in a water discharge state. FIG. 28 is a cross-sectional view of a water discharge head according to a third embodiment. FIG. 28 is a cross-sectional view in a raw water discharge state. FIG. 29 is a cross-sectional view of a water discharge head according to a third embodiment. FIG. 29 is a cross-sectional view of the purified water discharge state. FIG. 30 (a) is an enlarged cross-sectional view of the water discharge head according to the third embodiment in the raw water discharge state, and FIG. 30 (b) is an enlarged cross-sectional view of the water discharge head in the switching restriction state. Fig.30 (a) and FIG.30 (b) are sectional drawings in the state which is not equipped with a water purification cartridge. FIG. 31 is a perspective view of a water faucet apparatus according to a fourth embodiment. FIG. 32 (a) is a side view of the water discharge head according to the fourth embodiment in a raw water discharge state, and FIG. 32 (b) is a side view of the water discharge head in a clean water discharge state. In FIGS. 32 (a) and 32 (b), the cover of the head portion is removed. FIG. 33 is a cross-sectional view of a water discharge head according to a fourth embodiment. FIG. 33 is a cross-sectional view in a raw water discharge state. FIG. 34 is a cross-sectional view of a water discharge head according to a fourth embodiment. FIG. 34 is a cross-sectional view of the purified water discharge state. FIG. 35 (a) is an enlarged cross-sectional view of the water discharge head according to the fourth embodiment in a raw water discharge state, and FIG. 35 (b) is an enlarged cross-sectional view of the water discharge head in a switching restriction state. Fig.35 (a) and FIG.35 (b) are sectional drawings in the state which is not equipped with a water purification cartridge. FIG. 36 is a side view showing the first state and the second state of the regulating member according to the first embodiment. FIG. 37 is an enlarged cross-sectional view of the water discharge head of the first embodiment. FIG. 38 is the same enlarged cross-sectional view as FIG.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings as appropriate.

  In addition, unless it demonstrates in particular, the radial direction in this application means the radial direction of water purification cartridge PC1 attached to the regular position. Unless otherwise stated, the axial direction in the present application means the axial direction of the water purification cartridge PC1 attached to the regular position.

  Unless otherwise stated, the upstream side in the present application means the upstream side in the flow of water, and the downstream side means the downstream side in the flow of water.

First Embodiment
FIG. 1 is a perspective view of a water faucet device 2 according to the first embodiment. The faucet device 2 is attached to a sink (not shown). In FIG. 1, the description of the part which is not visible, that is, the part inside the sink is omitted. In addition, as a setting place of the faucet apparatus 2, a sink and a bathroom other than a sink may be exemplified.

  The water faucet device 2 has a main body 4, a lever handle 6 and a water discharge head 8. The faucet device 2 is a so-called single lever type faucet. The temperature of the water discharge can be adjusted by the left and right rotation of the lever handle 6. The water discharge amount can be adjusted by turning the lever handle 6 up and down. Inside the main body portion 4, a valve mechanism is incorporated which enables adjustment of the temperature and the amount of water discharge. This valve mechanism is known.

  Although not shown, the faucet device having the faucet device 2 has a hot water introduction pipe and a water introduction pipe. The hot water introduction pipe is connected to, for example, a pipe extending from a water heater. The water introduction pipe is, for example, connected to the water supply pipe without passing through a water heater.

  Heated hot water is introduced into the hot water introduction pipe. Heating is performed by a water heater. Unheated water is introduced into the water introduction pipe. The mixing ratio of hot water and water is adjusted by the valve mechanism. This mixing ratio achieves temperature control of the water discharge. In the following, heated water, unheated water, and a mixture thereof are also simply referred to as "water".

  The water discharge head 8 includes a water conveyance unit 10, a switching unit 12, an operation unit 14, a water shape adjustment unit 16, a display unit 20, and a discharge port 22. In the present embodiment, the operation unit 14 is a push button. The water conveyance part 10 also functions as a holding part.

  The water shape adjusting unit 16 can change the shape (water shape) of the discharged water. The water type adjustment unit 16 has a water type adjustment lever 18. By operating the water type adjustment lever 18, the water type can be changed. By the operation of the water type adjusting lever 18, a shower water type, a straight water type and an intermediate water type can be selected.

  The spouting head 8 has a raw water flow path and a purified water flow path. When the raw water channel is selected, the raw water is discharged from the discharge port 22. The state in which the raw water is discharged is also referred to as a raw water discharge state. When the purified water channel is selected, the purified water is discharged from the discharge port 22. The state in which the purified water is discharged is also referred to as the purified water discharge state.

  The switching unit 12 has a switching mechanism capable of switching between purified water and raw water by the operation of the operation unit 14. Details of this switching mechanism will be described later.

  FIG. 2 is a front view of the water discharge head 8. FIG. 3A is a cross-sectional view taken along the line AA of FIG. FIG.3 (b) is sectional drawing along the BB line of FIG. FIG. 4A is a cross-sectional view taken along the line A-A of FIG. FIG. 4 (b) is a cross-sectional view taken along the line B-B in FIG. 3 (a).

  The operation unit 14 functions as a switching button. When switching the flow path, the operation unit 14 is pressed. Every time the operation unit 14 is pressed, switching between the raw water channel and the purified water channel is performed. In other words, each time the operation unit 14 is pressed, switching between the raw water discharge state and the clean water discharge state is performed. As described later, the switching mechanism has a thrust lock mechanism of an alternate operation system. By this thrust lock, the push button operation of the operation unit 14 is realized. Each time the pressing operation is performed, the push button 14 mutually transitions between the pop-out position and the push-in position.

  The position of the operation unit 14 when the raw water is discharged is also referred to as a raw water discharge position. In the present embodiment, the raw water discharge position is the pop-out position. Further, the position of the operation unit 14 when the purified water is discharged is also referred to as a purified water discharge position. In the present embodiment, the purified water discharge position is the push-in position.

  In the present application, the operation direction of the push button 14 is also referred to as the front-rear direction. By pressing, the push button 14 moves rearward. The pop-out position is in front of the push-in position. In the mutual movement between the projecting position and the pushing position, the maximum pushing position is passed. The maximum push-in position is behind the push-in position. When the push button 14 in the pop-out position is pressed, it stops at the push-in position via the maximum push-in position. The switching actuation position is set at or immediately before the maximum push-in position. When the switching operation position is reached, the switching becomes effective and the switching position is shifted. Even when the operation is released, the pressed position is maintained. When the push button 14 in the push-in position is pressed, it stops at the pop-out position via the maximum push-in position (switching operating position). Even if the operation is released, the pop-out position is maintained.

  In FIGS. 1, 2, 3 (a), 3 (b), 4 (a) and 4 (b), the push button 14 is in the pop-out position. In the spouting head 8, when the push button 14 is in the pop-out position, the raw water flow path is selected. In the spouting head 8, raw water is spouted when the push button 14 is in the pop-out position. Conversely, when the push button 14 is in the pop-out position, the purified water may be discharged.

  FIG. 5A and FIG. 5B are cross-sectional views of the water discharge head 8 when the push button 14 is in the depressed position. The cross-sectional position of FIG. 5 (a) is the same as FIG. 3 (a). The sectional position of FIG. 5 (b) is the same as that of FIG. 3 (b). FIG. 6A is a cross-sectional view taken along the line A-A of FIG. FIG. 6B is a cross-sectional view taken along the line B-B in FIG.

  In FIGS. 5 (a), 5 (b), 6 (a) and 6 (b), the push button 14 is in the depressed position. In the spouting head 8, when the push button 14 is in the depressed position, the clean water flow path is selected. In the spouting head 8, when the push button 14 is in the depressed position, the purified water is dispensed. Conversely, when the push button 14 is in the pop-out position, raw water may be discharged.

  FIG. 7 is an exploded perspective view of the water discharge head 8.

  As FIG. 7 shows, the spouting head 8 has a water purification cartridge PC1. The water purification cartridge PC1 is disposed inside the outer cylinder portion 24. The water conveyance part (gripping part) 10 mentioned above has the outer cylinder part 24 and water purification cartridge PC1.

  A raw water channel WG is formed on the outside of the water purification cartridge PC1 (see the cross-sectional view of FIG. 3A and the like). A water purification channel WJ is formed inside the water purification cartridge PC1 (see a cross-sectional view of FIG. 3A and the like). When in the raw water discharge state, the raw water that has passed through the raw water flow path WG is discharged from the discharge port 22 via the raw water flow path WG in the switching mechanism. On the other hand, when in the clean water discharge state, the raw water is filtered by the permeable portion 26 of the water purification cartridge PC1 in the process from the outside to the inside of the water purification cartridge PC1, and becomes purified water. The purified water is discharged from the discharge port 22 via the clean water passage WJ inside the water purification cartridge PC1 and the clean water passage WJ inside the switching mechanism. In addition, this permeation | transmission part 26 is an example of a water purifier.

  The water discharge head 8 has a head body 28, an upper head cover 30, and a lower head cover 32.

  The switching unit 12 of the water discharge head 8 has a thrust lock mechanism 34. The thrust lock mechanism 34 is accommodated in the head body 28. The thrust lock mechanism 34 has a first switching piece 36, a second switching piece 38, a switching ring 40, a switching shaft 42, a coil spring 44, a switching cover 46 and an O-ring 48. The switching shaft 42 has push rods 50, 51 and a button holding portion 52. The switching cover 46 has a rear bottom 56 and a slit 58. The switching ring 40 is fixed to the front side of the switching cover 46. The switching shaft 42 is guided by the slit 58 to move in the front-rear direction. The second switching piece 38 moves with the switching shaft 42. The second switching insert 38 and the switching shaft 42 move (reciprocate) back and forth in conjunction with the pressing operation of the operation unit 14. The coil spring 44 biases the switching cover 46 and the switching shaft 42 in a direction away from each other. The first switching piece 36 rotates with each pressing operation of the button and enables holding at two different positions.

  The thrust lock mechanism 34 realizes an alternate operation. Also in the aforementioned patent 3454756, a thrust lock mechanism similar to that of the present embodiment is adopted. In general, a heart-shaped cam mechanism, a rotating cam mechanism, a ratchet cam mechanism and the like are known as a so-called alternate-operation-type thrust lock mechanism. All of these mechanisms are known. For example, any of these mechanisms may be adopted as the thrust lock mechanism 34.

  The water discharge head 8 has a water type switching assembly 70. The water type switching assembly 70 includes the water type adjusting unit 16 described above, the water type adjusting lever 18, and the discharge port 22. Furthermore, the water type switching assembly 70 has a valve seat forming portion 80.

  The switching mechanism of the water discharge head 8 has the operation part 14 mentioned above, the 1st valve V1, and the 2nd valve V2. Water discharge is switched by opening and closing two valves.

  The first valve V1 has a valve seat 101a, a first valve body 101b, a ball holding body 101c, and an elastic body 101d. The first valve V1 is a ball valve. The first valve body 101 b is a ball. The valve seat 101a is an opening edge of a circular hole. The valve seat 101 a is formed in the valve seat forming portion 80. The ball 101 b is held by a ball holder 101 c. The ball holder 101c is open downward. An elastic body 101d is disposed between the upper portion of the ball holding body 101c and the ball 101b. The elastic body 101d is a coil spring. The ball 101b is always urged toward the valve seat 101a by the elastic body 101d.

  The second valve V2 has a valve seat 102a, a second valve body 102b, a ball holding body 102c, and an elastic body 102d. The second valve V2 is a ball valve. The second valve body 102 b is a ball. The valve seat 102a is an opening edge of the circular hole. The valve seat 102 a is formed in the valve seat forming portion 80. The ball 102b is held by a ball holder 102c. The ball holder 102c is open downward. An elastic body 102d is disposed between the upper portion of the ball holder 102c and the ball 102b. The elastic body 102d is a coil spring. The ball 102b is always biased toward the valve seat 102a by the elastic body 102d.

  The end of the push rod 50 of the switching shaft 42 is connected to the ball holder 101 c. The end of the push rod 51 of the switching shaft 42 is connected to the ball holder 102 c. The ball holder 101 c and the ball holder 102 c move in the front-rear direction together with the switching shaft 42. In addition, the ball 101b moves in the front-rear direction together with the ball holder 101c. The ball 102b moves in the front-rear direction together with the ball holder 102c. Then, the switching shaft 42 moves in the front-rear direction together with the operation unit 14.

  The valve seat 101a and the valve seat 102a are juxtaposed in a direction substantially perpendicular to the front-rear direction, but their front-rear direction positions are (slightly) different. The valve seat 101a is located rearward of the valve seat 102a.

  When the operation unit 14 is in the pop-out position, the ball 102b is fitted into the valve seat 102a, and the second valve V2 is closed. At this time, since the center of the ball 101b is shifted from the center of the valve seat 101a, the first valve V1 is open. In this state, raw water is discharged. The second valve V2 is a water purification valve that closes the water purification flow path.

  When the operation unit 14 is in the push-in position, the ball 101b is fitted into the valve seat 101a, and the first valve V1 is closed. At this time, since the center of the ball 102b is shifted from the center of the valve seat 102a, the second valve V2 is open. In this state, the purified water is discharged. The first valve V1 is a raw water valve that closes the raw water flow path.

  The water discharge head 8 has a regulating member RG1. The regulating member RG1 plays a role of regulating the switching to the water purification discharge state when the water purification cartridge PC1 is not attached.

  The water discharge head 8 has a biasing member 104. The biasing member 104 biases the regulating member RG1 such that the regulating member RG1 is in the first state J1 (described later). In the present embodiment, the biasing member 104 is a torsion spring (torsion coil spring). Thus, the regulating member RG1 is biased to be in the first state J1.

  The ball holder 102c has an interlocking contact portion LC1. The interlocking contact portion LC1 is a rod-like portion whose rear end is a free end. The interlocking contact portion LC1 interlocks with the movement of the operation unit 14. The interlocking contact portion LC1 moves in the front-rear direction with the operation of the operation unit 14. When the movement of the interlocking contact portion LC1 is stopped, the operation portion 14 can not be moved. When the movement of the interlocking contact portion LC1 is stopped, the operation portion 14 can not be operated.

  In FIG. 3A, FIG. 3B, FIG. 4A and FIG. 4B, the operation unit 14 is in the pop-out position. When the operation unit 14 is in the pop-out position, the water discharge head 8 is in the raw water discharge state. In FIGS. 5 (a), 5 (b), 6 (a) and 6 (b), the operation unit 14 is in the depressed position. When the operation unit 14 is in the push-in position, the spouting head 8 is in the water purification discharge state. In each of these figures, the water purification cartridge PC1 is attached to the spouting head 8 (at a regular position). The water purification cartridge PC1 is mounted on the cartridge mounting portion. In the water discharge head 8, the cartridge mounting portion is a portion extending from the inside of the outer cylindrical portion 24 to the inside of the head main body 28. By being mounted on (the correct position of) the cartridge mounting portion, the water purification cartridge PC1 can exhibit its function (generation of purified water).

  Fig.8 (a), FIG.8 (b), FIG.9 (a) and FIG.9 (b) are sectional drawings in the state in which the water purification cartridge PC1 is not mounted | worn with the said cartridge mounting part. The positions of the cross sections in FIGS. 8 (a) and 8 (b) are the same as in FIG. 3 (b). The positions of the cross sections of FIG. 9A and FIG. 9B are the same as FIG. 4B.

  In FIGS. 8A and 9A, the operation unit 14 is in the pop-out position. In FIGS. 8B and 9B, the operation unit 14 is in the switching restriction position. The switching restriction position is a position at which the operation of the operation unit 14 to the water purification discharge state is restricted.

  FIG. 10A is a cross-sectional view in which a part of FIG. 3B is enlarged. FIG.10 (b) is sectional drawing to which a part of FIG.5 (b) was expanded.

  In addition, for convenience of explanation, in the present application, a state in which the water purification cartridge PC1 is not mounted in the cartridge mounting portion is also referred to as a non-mounted state. Further, the state in which the water purification cartridge PC1 is mounted in the cartridge mounting portion is also referred to as a mounted state. Fig.8 (a), FIG.8 (b), FIG. 9 (a) and FIG.9 (b) are sectional drawings of an unmounted state. FIG. 10A and FIG. 10B are cross-sectional views of the mounted state.

  The state of the regulating member RG1 is different between the mounted state and the non-mounted state. In the unmounted state shown in FIGS. 8A, 8B, 9A, and 9B, the restricting member RG1 is in the first state J1. In the mounted state shown in FIGS. 10A and 10B, the restricting member RG1 is in the second state J2.

  In the present embodiment, the difference in the state of the restricting member RG1 is the difference in the attitude of the restricting member RG1. The restricting member RG1 is urged to be in the first posture by the urging member 104 described above. Therefore, in the unmounted state, the restricting member RG1 is in the first posture (see FIGS. 8A and 8B). In the mounted state, the restricting member RG1 is in the second posture (see FIGS. 10A and 10B). This difference in attitude is achieved by rotation. By mounting the water purification cartridge PC1 in the cartridge mounting portion, the downstream end surface of the water purification cartridge PC1 abuts on the restriction member RG1, and the restriction member RG1 rotates. By this rotation, the regulating member RG1 shifts from the first state J1 (first attitude) to the second state J2 (second attitude). Details of the operation of the restriction member RG1 will be described later.

  As described above, the biasing member 104 biases the regulating member RG1 to the first state J1 side. Therefore, when the water purification cartridge PC1 is inserted against the biasing force of the biasing member 104 and the regulating member RG1 is brought into the second state J2, the biasing member 104 presses the water purification cartridge PC1 in the removal direction. . The removal direction is a direction from the connection end portion 140 toward the rear formation portion 142 (see FIG. 14B). Therefore, removal of the water purification cartridge PC1 is facilitated. Although the O-ring 162 attached to the water purification cartridge PC1 adheres and the water purification cartridge PC1 is difficult to remove, the urging member 104 contributes to the elimination of this inconvenience. Thus, the restricting member RG1 has an effect (detachment support effect) for supporting the removal of the water purification cartridge PC1.

  As shown in FIGS. 10 (a) and 10 (b), when the water purification cartridge PC1 is mounted and the regulating member RG1 is in the second state J2, the interlocking contact portion LC1 is not related to the position of the operation portion 14 It does not contact the regulating member RG1. When the regulating member RG1 is in the second state J2, the switching from the raw water to the purified water is not regulated by the regulating member RG1. When the regulating member RG1 is in the second state J2, the transition from the raw water discharge state (FIG. 10 (a)) to the clean water discharge state (FIG. 10 (b)) is achieved.

  On the other hand, when the water purification cartridge PC1 is not attached and the regulating member RG1 is in the first state J1, the interlocking contact portion LC1 abuts against the regulating member RG1 in the process of switching from raw water to clean water (FIG. b) and FIG. 9 (b)). When the operation portion 14 is pushed in from the pop-out position, the interlocking contact portion LC1 abuts on the regulating member RG1 before the operation portion 14 reaches the push-in position. Due to this contact, the operation unit 14 can not be pushed further. When the regulating member RG1 is in the first state J1, the switching from the raw water to the purified water is regulated by the regulating member RG1. When the restriction member RG1 is in the first state J1, the transition from the raw water discharge state (FIG. 10A) to the clean water discharge state (FIG. 10B) is restricted. When the restriction member RG1 is in the first state J1, the operation unit 14 can not be moved from the raw water discharge position to the clean water discharge position.

  In order to operate the above-described thrust lock mechanism to switch the water discharge, it is necessary to further push the operation portion 14 beyond the pushing position. That is, in order to switch the water discharge, an overstroke is required. The position of the operation unit 14 when it is most pushed in is also referred to as a maximum push-in position. The operation direction distance between the projection position and the push-in position is X mm, and the operation direction distance of the overstroke is Y mm. Between the pressing position and the maximum pressing position is Y mm. Therefore, the maximum movable distance of the operation unit 14 is (X + Y) mm. In the present embodiment, X is 4 mm and Y is 2 mm. The operation direction means the movement direction of the operation unit 14.

  The switching restriction position may be between the projection position and the push-in position. That is, the switching restriction position may be in the range of X mm. Further, the switching restriction position may be in an over-stroke range. That is, the switching restriction position may be between the pushing position and the maximum pushing position. In other words, the switching restriction position may be in the range of Y mm. However, the movement of the operation unit 14 needs to be restricted before the switching by the thrust lock mechanism is activated. That is, before reaching the above-described switching operation position, the switching of the operation unit 14 needs to be regulated. From the viewpoint of the certainty of the switching restriction, the switching restriction position is preferably between the pop-out position and the push-in position.

  11 (a) and 11 (b) are cross-sectional views showing a state immediately before the water purification cartridge PC1 is mounted at the regular position. The cross-sectional position of FIG. 11 (a) is the same as FIG. 3 (a). The cross-sectional position of FIG. 11 (b) is the same as FIG. 3 (b).

  As described above, in the unmounted state, the restricting member RG1 is in the first state J1. Also in FIGS. 11A and 11B, the restricting member RG1 is in the first state J1. In the process of mounting the water purification cartridge PC1, the downstream end face EF1 of the water purification cartridge PC1 abuts on the regulating member RG1. FIGS. 11A and 11B show a state in which the end face EF1 is about to be in contact with the restricting member RG1. From this state, the water purification cartridge PC1 is inserted further downstream (see solid arrows in FIG. 11A and FIG. 11B). By this insertion, the restricting member RG1 is pushed by the end face EF1 and rotates. As a result of this rotation, the restricting member RG1 shifts from the first state J1 (FIGS. 11 (a) and 11 (b)) to the second state J2 (FIGS. 10 (a) and 10 (b)).

  FIG. 12A is a perspective view of the regulating member RG1. FIG. 12B is a plan view of the regulating member RG1. FIG. 12C is a side view of the regulating member RG1.

  The restricting member RG1 has a shaft portion 110, a restricting contact portion 112, and a switching restricting portion 114. Furthermore, the restricting member RG1 has a first state holding unit 116. The shaft portion 110 is a rotation shaft of the restriction member RG1.

  The first state holding portion 116 holds the regulating member RG1 in the first state J1 by contacting the adjacent portion by the urging force of the urging member 104. The adjacent part is a member adjacent to the regulating member RG1, and any member may be applicable.

  The restriction release contact portion 112 is located on one side of the shaft portion 110, and the switching control portion 114 is located on the other side of the shaft portion 110. In the first state J1 (see FIGS. 11A and 11B), the restriction releasing contact portion 112 is located on the upstream side (rear side) of the shaft portion 110, and the switching restriction portion 114 is downstream of the shaft portion 110. Located on the side (forward)

  As the control release contact portion 112, a first control release contact portion 112a and a second control release contact portion 112b are provided. The first restriction release contact portion 112 a is an end of the protruding portion 118 protruding from the first position of the shaft portion 110. The second restriction release contact portion 112 b is an end of the protruding portion 120 protruding from the second position of the shaft portion 110.

  The restricting member RG1 has a U-shaped portion 122 which extends from one position of the shaft portion 110 to another position of the shaft portion 110. The switching restricting portion 114 is provided in the U-shaped portion 122. The first state holding portion 116 is an end face of the protrusion 124 protruding from the U-shaped portion 122.

  FIG. 13A is a perspective view of the ball holder 102c. The ball holding body 102c has a ball housing portion 130 and the interlocking contact portion LC1 described above. The ball accommodating portion 130 is a cylindrical portion whose lower side is open. The ball accommodating portion 130 accommodates the ball 102 b. The interlocking contact portion LC1 is a rod-like portion that protrudes from the ball housing portion 130. The interlocking contact portion LC1 extends in the front-rear direction. The interlocking contact portion LC1 has an end surface 132. The end surface 132 is a rear end surface of the interlocking contact portion LC1.

  As shown in FIG. 8 (b), in the unmounted state, (the end surface 132 of the interlocking contact portion LC1) is in the first state J1 while moving the operation unit 14 from the raw water discharge position to the clean water discharge position. It abuts on (the switching restricting portion 114 of) the restricting member RG1. Due to this contact, the interlocking contact portion LC1 can not move further rearward. Due to this contact, the operation unit 14 can not be pushed further. Therefore, the operation part 14 can not be made into a purified water discharge position.

  On the other hand, as shown in FIG. 10 (b), in the mounting state, (the end surface 132 of the interlocking contact portion LC1) is in the second state J2 in the process of moving the operation unit 14 from the raw water discharge position to the clean water discharge position. It does not abut on a certain restricting member RG1 (the switching restricting portion 114). Therefore, interlocking | linkage contact part LC1 can move back more, and reaches a clean water discharge position.

  Fig. 14 (a) is a perspective view of the water purification cartridge PC1. FIG. 14 (b) is a side view of the water purification cartridge PC 1. FIG. 14C is a front view of the water purification cartridge PC1. FIG. 14C is a view of the water purification cartridge PC1 as viewed from the downstream side.

  The water purification cartridge PC1 has the transmission portion 26, the connection end portion 140 disposed at the front end portion of the transmission portion 26, and the rear formation portion 142 disposed at the rear end portion of the transmission portion 26. The material of the connection end portion 140 is a resin. The connecting end 140 is integral in its entirety. The connection end 140 is integrally formed of resin. The connection end 140 is coaxial with the transmitting portion 26. The rear forming portion 142 is coaxial with the transmitting portion 26. In addition, as mentioned above, the permeation | transmission part 26 is an example of a water purification function part (part which exhibits a water purification function). The water purification cartridge PC1 may not have the permeation part 26.

  The connection end portion 140 is provided on the downstream side of the transmission portion 26. The interior of the connection end 140 is hollow. This cavity functions as the purified water channel WJ. That is, the connection end part 140 has the purified water flow path WJ inside. The end of the connection end 140 is the downstream end EF1 of the water purification cartridge PC1.

  The transmission part 26 is cylindrical. The transmission part 26 has a cavity inside. This hollow portion functions as the purified water channel WJ. The permeable portion 26 may have, for example, an outer filtration layer and an inner filtration layer. A water purification material may be disposed between the outer filtration layer and the inner filtration layer. The water purification material contains, for example, activated carbon as a main component. Nonwoven fabric, for example, is used for the outer filtration layer and the inner filtration layer. A ceramic having a sterilizing action may be employed for the outer filtration layer and / or the inner filtration layer. An ion exchanger may be employed for the outer filtration layer and / or the inner filtration layer. The outer filtration layer may be multiple layers. The inner filtration layer may be multiple layers.

  The rear formation portion 142 closes the rear side of the transmission portion 26. On the other hand, the connection end 140 is capable of water flow. The internal space of the connection end 140 is the purified water channel WJ. The purified water generated by passing through the permeation portion 26 passes through the connection end portion 140 and reaches the switching portion 12.

  The connection end 140 has a first cylindrical portion 150. Furthermore, the connection end 140 has a second cylindrical portion 152. Furthermore, the connection end 140 has a third cylindrical portion 154. The second cylindrical portion 152 is located downstream of the third cylindrical portion 154. The first cylindrical portion 150 is located downstream of the second cylindrical portion 152. The second cylindrical portion 152 is located between the first cylindrical portion 150 and the third cylindrical portion 154. The first cylindrical portion 150 and the second cylindrical portion 152 are coaxial. The second cylindrical portion 152 and the third cylindrical portion 154 are coaxial. The central axis of the first cylindrical portion 150 coincides with the central axis of the water purification cartridge PC1. The central axis of the second cylindrical portion 152 coincides with the central axis of the water purification cartridge PC1. The central axis of the third cylindrical portion 154 coincides with the central axis of the water purification cartridge PC1.

  The connection end 140 has a largest outer diameter. In the present embodiment, the maximum outer diameter portion of the connection end portion 140 is the third cylindrical portion 154. The largest outer diameter portion (third cylindrical portion 154) covers the downstream end of the transmission portion 26.

  The outer diameter of the third cylindrical portion 154 is larger than the outer diameter of the second cylindrical portion 152. A stepped surface 156 is formed between the third cylindrical portion 154 and the second cylindrical portion 152. The step surface 156 extends in the radial direction of the water purification cartridge PC1. The outer diameter of the second cylindrical portion 152 is larger than the outer diameter of the first cylindrical portion 150. A stepped surface 158 is formed between the second cylindrical portion 152 and the first cylindrical portion 150. The step surface 158 extends in the radial direction of the water purification cartridge PC1.

  The first cylindrical portion 150 has a flange 160 and an O-ring 162. The O-ring 162 is attached to the outer surface of the first cylindrical portion 150. The flange 160 extends in the radial direction of the water purification cartridge PC1. The flange 160 is located downstream of the O-ring 162. The flange 160 supports the O-ring 162 at the downstream side.

  As described above, the water purification cartridge PC1 has the downstream end face EF1. The end face EF1 is an end face of the first cylindrical portion 150. When the end face EF1 abuts on the protrusions 118 and 120 of the restriction member RG1, the restriction member RG1 is rotated. This rotation is rotation with the shaft portion 110 as a rotation axis. By this rotation, the regulating member RG1 shifts from the first state J1 to the second state J2.

Second Embodiment
FIG. 15 is a perspective view of a water faucet apparatus 200 according to the second embodiment. The faucet device 200 is attached to a sink (not shown). In FIG. 15, the description of the non-visible part, that is, the part inside the sink is omitted. In addition, as a setting place of the faucet apparatus 200, a sink and a bathroom other than a sink are illustrated.

  The faucet device 200 has a main body portion 204, a lever handle 206 and a water discharge head 208. The faucet device 200 is a so-called single lever type faucet. The temperature of the water discharge can be adjusted by the left and right rotation of the lever handle 206. The water discharge amount can be adjusted by turning the lever handle 206 up and down. Inside the main body portion 204, a valve mechanism that allows adjustment of the temperature and the amount of water discharge is incorporated. This valve mechanism is known. Although not shown, the faucet device having the faucet device 200 has a hot water introducing pipe and a water introducing pipe.

  The water discharge head 208 includes a water delivery unit 210, a switching unit 212, an operation unit 214, a water shape adjustment unit 216, a display unit 220, and a discharge port 222. In the present embodiment, the operation unit 214 is a push button. The water conveyance part 210 also functions as a holding part. In the present embodiment, the display unit 220 is a side surface of the push button 214. Since whether the raw water discharge state or the purified water discharge state can be determined by the appearance of the side surface, this side surface is also an aspect of the display unit. The water shape adjusting unit 216 can change the shape (water shape) of the discharged water.

  The spouting head 208 has a raw water flow path and a clean water flow path. When the raw water channel is selected, the raw water is discharged from the discharge port 222. The state in which the raw water is discharged is also referred to as a raw water discharge state. When the clean water flow channel is selected, the clean water is discharged from the discharge port 222. The state in which the purified water is discharged is also referred to as the purified water discharge state.

  The switching unit 212 has a switching mechanism that can switch between purified water and raw water by the operation of the operation unit 214. Details of this switching mechanism will be described later.

  FIG. 16 is a front view of the water discharge head 208. FIG. FIG. 17 is a cross-sectional view taken along the line AA of FIG. FIG. 18 is a cross-sectional view taken along the line AA of FIG.

  The operation unit 214 functions as a switching button. When switching the flow path, the operation unit 214 is pressed. Every time the operation unit 214 is pressed, switching between the raw water channel and the purified water channel is performed. In other words, each time the operation unit 14 is pressed, switching between the raw water discharge state and the clean water discharge state is performed. As in the first embodiment described above, this switching mechanism has a thrust lock mechanism of an alternate operation system. By this thrust lock, the push button operation of the operation unit 214 is realized. Each time the pressing operation is performed, the push button 214 mutually transitions between the pop-out position and the push-in position.

  In the present embodiment, the raw water discharge position is the pop-out position. In the present embodiment, the purified water discharge position is the push-in position.

  The push moves the push button 214 backward. The pop-out position is in front of the push-in position. In the mutual movement between the projecting position and the pushing position, the maximum pushing position is passed. The maximum push-in position is behind the push-in position. When the push button 214 in the pop-out position is pressed, it stops at the push-in position via the maximum push-in position. Even when the operation is released, the pressed position is maintained. When the push button 214 in the push-in position is pressed, it stops at the pop-out position via the maximum push-in position. Even if the operation is released, the pop-out position is maintained.

  In FIGS. 15-18, the push button 214 is in the pop-out position. In the spouting head 208, when the push button 214 is in the pop-out position, the raw water flow path is selected. The water discharge head 208 discharges the raw water when the push button 214 is in the pop-out position.

  19 and 20 are cross-sectional views of the water discharge head 208 when the push button 214 is in the depressed position. The cross-sectional position of FIG. 19 is the same as that of FIG. FIG. 20 is a cross-sectional view taken along the line AA of FIG.

  In the spouting head 208, when the push button 214 is in the depressed position, the clean water flow path is selected. In the spouting head 208, the purified water is dispensed when the push button 214 is in the depressed position.

  FIG. 21 is an exploded perspective view of the water discharge head 208. FIG.

  As FIG. 21 shows, the spouting head 208 has a water purification cartridge PC1. The water purification cartridge PC1 is the same as that used in the first embodiment. The water conveyance part (gripping part) 210 mentioned above has the outer cylinder part 224 and the water purification cartridge PC1 arrange | positioned inside the outer cylinder part 224. As shown in FIG.

  As shown in FIGS. 17 to 20, a raw water channel WG is formed outside the water purification cartridge PC1, and a water purification channel WJ is formed inside the water purification cartridge PC1. When in the raw water discharge state, the raw water that has passed through the raw water flow path WG is discharged from the discharge port 222 via the switching mechanism. On the other hand, when in the water purification discharge state, the raw water becomes water purified by the function of the water purification function unit (transmission unit 26) of the water purification cartridge PC1 in the process of passing through the water purification cartridge PC1. The purified water is discharged from the discharge port 222 via the water purification channel WJ inside the water purification cartridge PC1 and the water purification channel WJ inside the switching mechanism.

  The water discharge head 208 has a head body 228, an upper head cover 230, and a lower head cover 232.

  The switching portion 212 of the water discharge head 208 has a thrust lock mechanism 234. The thrust lock mechanism 234 is accommodated in the head body 228. The thrust lock mechanism 234 has a first switching piece 236, a second switching piece 238, a switching ring 240, a switching shaft 242, a coil spring 244, a switching cover 246 and an O-ring 248. The switching shaft 242 has a push rod 250 and a button holding portion 252. The switching cover 246 has a rear bottom portion 256 and a slit 258. The switching ring 240 is fixed to the front side of the switching cover 246. The switching shaft 242 is guided by the slit 258 to move in the front-rear direction. The second switching post 238 moves with the switching shaft 242. In conjunction with the pressing operation of the operation unit 214, the second switching insert 238 and the switching shaft 242 move (reciprocate) back and forth. The coil spring 244 biases the switching cover 246 and the switching shaft 242 in a direction away from each other. The first switching piece 236 rotates with each pressing operation of the button and enables holding at two different positions. Similar to the first embodiment described above, this thrust lock mechanism 234 realizes the alternation operation.

  The spout head 208 includes a water type switching assembly 270. The water type switching assembly 270 has the water type adjusting portion 216 and the discharge port 222 described above. Furthermore, the water type switching assembly 270 includes a valve seat forming portion 280.

  The switching mechanism of the water discharge head 208 includes the operation unit 214 described above, the first valve V1, and the second valve V2. Water discharge is switched by opening and closing two valves.

  The first valve V1 has a valve seat 301a, a first valve body 301b, a ball holding body 301c, and an elastic body 301d. The first valve V1 is a ball valve. The first valve body 301 b is a ball. The valve seat 301a is an opening edge of a circular hole. The valve seat 301 a is formed in the valve seat forming portion 280. The ball 301 b is held by a ball holder 301 c. The ball holder 301 c is open downward. An elastic body 301d is disposed between the upper portion of the ball holding body 301c and the ball 301b. The elastic body 301 d is a coil spring. The ball 301 b is always urged toward the valve seat 301 a by the elastic body 301 d.

  The second valve V2 has a valve seat 302a (see FIGS. 19 and 20), a second valve body 302b, and a shaft 302c. The second valve V2 is a shaft valve. The second valve body 302b is an O-ring. The valve seat 302a is a slope formed on the periphery of the opening of the flow passage hole (see FIGS. 19 and 20). This slope is a backward facing surface. The O-ring 302b is attached to the shaft 302c. The shaft 302 c is connected to the switching shaft 242 via the ball holder 301 c. The shaft 302 c moves in the front-rear direction together with the switching shaft 242. The switching shaft 242 is connected to the operation unit 214. The shaft 302c moves in the front-rear direction together with the operation unit 214 (push button).

  The shaft body 302c has an interlocking contact portion LC2. The interlocking contact portion LC2 is a rear end portion of the shaft 302c. The interlocking contact portion LC2 moves in the front-rear direction with the operation of the operation unit 214.

  The end of the push rod 250 of the switching shaft 242 is connected to the ball holder 301 c (see FIGS. 18 and 20). The ball holder 301 c moves in the front-rear direction together with the switching shaft 242. The ball holder 301 c moves in the front-rear direction together with the operation unit 214.

  When the operation unit 214 is in the pop-out position, the first valve V1 is open because the center of the ball 301b is offset from the center of the valve seat 301a. On the other hand, when the operation unit 214 is in the pop-out position, the O-ring 302b mounted on the shaft body 302c abuts on the valve seat 302a (see FIGS. 17 and 18). By this contact, the second valve V2 is closed. In this state, raw water is discharged. The second valve V2 is a water purification valve that closes the water purification flow path.

  When the operation unit 214 is in the push-in position, the ball 301b fits into the valve seat 301a, and the first valve V1 is closed. At this time, the O-ring 302b attached to the shaft 302c is separated from the valve seat 302a (see FIGS. 19 and 20). In this state, the purified water is discharged. The first valve V1 is a raw water valve that closes the raw water flow path.

  As shown in an enlarged manner in FIG. 21, the water discharge head 208 has a restricting member RG2. The restricting member RG2 plays a role of restricting switching to the clean water discharge state when the water purification cartridge PC1 is not attached.

  As shown in an enlarged view in FIG. 21, the water discharge head 208 has a biasing member 304. The biasing member 304 biases the regulating member RG2 such that the regulating member RG2 is in the first state. In the present embodiment, the biasing member 304 is a torsion spring (torsion coil spring).

  In FIGS. 17 and 18, the operation unit 214 is in the pop-out position. When the operation unit 214 is in the pop-out position, the water discharge head 208 is in a raw water discharge state. In FIGS. 19 and 20, the operation unit 214 is in the depressed position. When the operation unit 214 is in the push-in position, the spouting head 208 is in the water purification discharge state. In each of these figures, the water purification cartridge PC1 is attached to the spouting head 208 (at a regular position). The water purification cartridge PC1 is mounted on the cartridge mounting portion. In the water discharge head 208, the cartridge mounting portion is a portion from the inside of the outer cylindrical portion 224 to the inside of the head main body 228. By being mounted on (the correct position of) the cartridge mounting portion, the water purification cartridge PC1 can exhibit its function (generation of purified water).

  22 (a), 22 (b), 23 (a) and 23 (b) are cross-sectional views in the unmounted state. In FIGS. 22A and 23A, the operation unit 214 is in the pop-out position. In FIGS. 22B and 23B, the operation unit 214 is in the switching restriction position. In FIGS. 22 (b) and 23 (b), the water discharge head 208 is in the switching restriction state. The switching restricted state means a state in which the movement of the interlocking contact portion LC2 is restricted by the interlocking contact portion LC2 abutting on the restricting member RG2.

  FIG. 24A is an enlarged sectional view of a part of FIG. FIG.24 (b) is sectional drawing to which a part of FIG. 19 was expanded. Fig.24 (a) and FIG.24 (b) are sectional drawings of a mounting state. In FIG. 24A, the operation unit 214 is in the pop-out position. In FIG. 24 (b), the operation unit 214 is in the depressed position.

  The state of the restricting member RG2 is different between the mounted state and the non-mounted state. In the unmounted state shown in FIGS. 22 (a), 22 (b), 23 (a) and 23 (b), the restricting member RG2 is in the first state J1. In the mounted state shown in FIGS. 24A and 24B, the restricting member RG2 is in the second state J2.

  In the present embodiment, the difference in the state of the restricting member RG2 is the difference in the attitude of the restricting member RG2. The restricting member RG2 is urged by the urging member 304 described above to be in the first posture. Therefore, in the unmounted state, the restricting member RG2 is in the first posture (see FIG. 22A). In the mounted state, the restricting member RG1 is in the second position (see FIG. 24A). This difference in attitude is achieved by rotation. By mounting the water purification cartridge PC1 in the cartridge mounting portion, the end face EF1 of the water purification cartridge PC1 abuts on the restriction member RG2, and the restriction member RG2 rotates. By this rotation, the restricting member RG2 shifts from the first state J1 (first attitude) to the second state J2 (second attitude).

  As shown in FIG. 24 (a), when the water purification cartridge PC1 is mounted and the restricting member RG2 is in the second state J2 and the operation part 214 is in the raw water discharge position, the interlocking contact part LC2 (shaft body 302c The rear end portion does not abut on the regulating member RG2.

  As shown in FIG. 24 (b), when the water purification cartridge PC1 is mounted and the restricting member RG2 is in the second state J2 and the operation part 214 is in the clean water discharging position, the interlocking contact part LC2 is the restricting member RG2. Can abut. However, the restricting member RG2 in the second state J2 is not in a state that can prevent the rearward movement of the interlocking contact portion LC2 (the rear end portion of the shaft 302c). At this time, although the regulating member RG2 is pushed (slightly) by the interlocking contact portion LC2 (the rear end portion of the shaft 302c), it restricts the rearward movement of the interlocking contact portion LC2 (shaft 302c). do not do. Therefore, when the regulating member RG2 is in the second state J2, the switching from the raw water to the purified water is not regulated by the regulating member RG2. When the restricting member RG2 is in the second state J2, the transition from the raw water discharge state to the clean water discharge state is achieved.

  On the other hand, when the water purification cartridge PC1 is not attached and the regulating member RG2 is in the first state J1, in the process of switching from raw water to clean water, the interlocking contact portion LC2 (rear end of the shaft 302c) regulates It abuts on the member RG2 (see FIG. 22 (b) and FIG. 23 (b)). When the operating portion 214 is pushed in from the pop-out position, the interlocking contact portion LC2 abuts on the restricting member RG2 before the operating portion 214 reaches the pushed-in position. Due to this contact, the operation unit 214 can not be pushed further. The restricting member RG2 in the first state J1 is in a state (posture) capable of receiving the operation force transmitted from the operation portion 214 to the interlocking contact portion LC2 (shaft 302c). As (b) of FIG. 23 shows, a part of the regulating member RG2 enters the recess r1 provided on the rear end face of the shaft 302c, whereby the regulating member RG2 stabilizes the shaft 302c (the interlock contact portion LC2). Support.

  As described above, when the restricting member RG2 is in the first state J1, the switching from the raw water to the purified water is restricted by the restricting member RG2. When the restriction member RG2 is in the first state J1, the transition from the raw water discharge state to the clean water discharge state is restricted. When the regulating member RG2 is in the first state J1, the operation unit 214 can not be moved from the raw water discharge position to the clean water discharge position.

  In addition, although the attitude | position of regulation member RG2 is different in Fig.24 (a) and FIG.24 (b), as for these, it restricts that the interlocking contact part LC2 (operation part 214) all moves to a clean water discharge position. Since the postures can not be made, both are in the second state J2.

  FIG. 25A is a perspective view of the restriction member RG2. FIG. 25 (b) is a plan view of the regulating member RG2. FIG. 25 (c) is a side view of the regulating member RG2.

  The regulating member RG2 has a shaft portion 310, a regulating release contact portion 312, and a switching regulating portion 314. The shaft portion 310 is a rotation shaft of the restriction member RG2. The restriction release contact portion 312 is located on one side of the shaft portion 310, and the switching control portion 314 is located on the other side of the shaft portion 310. In the first state J1 (see FIGS. 22A and 23B), the restriction release contact portion 312 is located on the upstream side (rear side) of the shaft portion 310, and the switching restriction portion 314 is downstream of the shaft portion 310. Located on the side (forward)

  As the control release contact portion 312, a first control release contact portion 312a and a second control release contact portion 312b are provided. The first restricting contact portion 312 a is an end of the protruding portion 318 protruding from the first position of the shaft portion 310. The second restriction release contact portion 312 b is an end of the protruding portion 320 protruding from the second position of the shaft portion 310.

  Further, the restricting member RG2 has a first state holding unit 316. The first state holding unit 316 holds the regulating member RG2 in the first state J1 by abutting on the adjacent portion by the biasing force of the biasing member 304.

  The switching restricting portion 314 is provided at the end of the protruding extension portion 322 extending from the shaft portion 310. The switching restricting portion 314 has a protrusion 324 and support portions 326 provided on the left and right sides of the protrusion 324. When the restricting member RG2 blocks the movement of the interlocking contact portion LC2 (shaft 302c), the protrusion 324 enters the above-mentioned protrusion r1 of the shaft 302c, and the left and right support portions 326 contact the rear end face of the shaft 302c. Contact (see FIG. 23 (b)). Therefore, the restricting member RG2 stably abuts on the rear end portion of the shaft 302c, and the movement of the shaft 302c is reliably restricted.

Third Embodiment
FIG. 26 is a perspective view of a water faucet apparatus 400 according to the third embodiment. The faucet device 400 is attached to a sink (not shown). In FIG. 26, the description of the non-visible part, that is, the part inside the sink is omitted.

  The faucet device 400 has a main body portion 404, a lever handle 406 and a water discharge head 408. The faucet device 400 is a so-called single lever type faucet. The temperature of the water discharge can be adjusted by the left and right rotation of the lever handle 406. The water discharge amount can be adjusted by turning the lever handle 406 up and down. Inside the main body portion 404, a valve mechanism that allows adjustment of the temperature and amount of water discharge is incorporated. Although not shown, the faucet device having the faucet device 400 has a hot water introduction pipe and a water introduction pipe.

  The water discharge head 408 includes a water conveyance unit 410, a switching unit 412, an operation unit 414, a water shape adjustment unit 416, a display unit 420, and a discharge port 422. In the present embodiment, the operation unit 414 is a dial. By rotating the operation unit 414, switching between raw water and purified water is possible. In the present application, this water discharge head 408 is also referred to as a dial type. This dial type water discharge head is known.

  In the present embodiment, the display unit 420 is a display window. Based on the display on the display window, it can be determined whether the raw water discharge state or the purified water discharge state. The water shape adjusting unit 416 can change the shape (water shape) of the discharged water.

  The spouting head 408 has a raw water flow path and a purified water flow path. When the raw water channel is selected, the raw water is discharged from the discharge port 422. When the purified water channel is selected, the purified water is discharged from the discharge port 422.

  The switching unit 412 has a switching mechanism capable of switching between purified water and raw water by the operation (rotational operation) of the operation unit 414. Details of this switching mechanism will be described later.

  27 (a), 27 (b) and 27 (c) are front views of the water discharge head 408. FIG. FIG. 27 (a) is a front view in a raw water discharge state. FIG. 27B is a front view in the switching restricted state. FIG. 27 (c) is a front view in the water purification discharge state.

  FIG. 28 is a cross-sectional view taken along the line AA of FIG. FIG. 28 is a cross-sectional view in a raw water discharge state. FIG. 29 is a cross-sectional view taken along the line AA of FIG. FIG. 29 is a cross-sectional view of the purified water discharge state.

  The operation unit 414 functions as a switching dial. When switching the flow path, the operation unit 414 is rotated. By rotating the operation unit 414, switching between the raw water channel and the purified water channel is performed. In the raw water discharge state, the operation unit 414 is at the first rotation position (see FIG. 27A). In the purified water discharge state, the operation unit 414 is in the second rotation position (see FIG. 27C). In the present embodiment, the angle θ between the first rotational position and the second rotational position is 90 °. In the present embodiment, switching between the raw water discharge state and the clean water discharge state is performed by rotating the operation unit 414 by an angle θ (90 °).

  The water discharge head 408 has a cam mechanism 430 capable of converting the rotation of the operation unit 414 into the movement in the front-rear direction, and the shaft body 432 moved in the front-rear direction by the cam mechanism 430. As FIG. 29 well shows, the shaft 432 has a shaft portion 432a, a disk portion 432b, a rear inlet port 432c, a main flow channel 432d, and a branch flow channel 432e. Furthermore, the shaft body 432 has an interlocking contact portion LC3. The interlocking contact portion LC3 is a rear end surface of the shaft member 432.

  The disc portion 432b has a purified water outlet 432f and a raw water outlet 432g. The branch flow channel 432 e connects the main flow channel 432 d and the purified water outlet 432 f. The main flow path 432d is opened rearward by the rear inlet port 432c. The purified water outlet 432f is provided at one place in the circumferential direction of the disc portion 432b. The raw water outlet 432g is provided at one place in the circumferential direction of the disc portion 432b. The circumferential position of the purified water outlet 432f is different from the circumferential position of the raw water outlet 432g.

  On the other hand, the adjacent part adjacent to the shaft 432 has a support hole 440 for supporting the shaft 432 movably in the front-rear direction, a disc facing part 442 and a flow path hole 444. The adjacent portion is fixed regardless of the operation of the operation unit 414.

  By the cam mechanism 430, the shaft 432 moves back and forth with the rotation of the operation unit 414. When the operation unit 414 is at the raw water discharge position and the clean water discharge position, the disk portion 432 b of the shaft 432 is in contact with the disk facing portion 442. The position of the shaft 432 at this time is hereinafter also referred to as a reference position. When the operation unit 414 is located between the raw water discharge position and the clean water discharge position, the disc portion 432 b is separated from the disc facing portion 442. That is, when the operation unit 414 is positioned between the raw water discharge position and the clean water discharge position, the shaft 432 is positioned behind the reference position.

  The shaft 432 rotates integrally with the operation unit 414. That is, the shaft 432 rotates with the operation unit 414 while moving back and forth with the rotation of the operation unit 414.

  In the purified water discharge state, the purified water outlet 432f of the shaft 432 overlaps the flow path hole 444 (see FIG. 29). At this time, the raw water outlet 432 g is blocked by the disc facing portion 442. As a result, the purified water which has passed through the purified water flow path WJ inside the purified water cartridge PC1 is discharged from the discharge port 422 via the main flow path 432d, the purified water outlet 432f and the flow path hole 444.

  In the raw water discharge state, the raw water outlet 432g of the shaft 432 overlaps the flow path hole 444 (see FIG. 28). At this time, the purified water outlet 432 f is closed by the disc facing portion 442. As a result, the clean water that has passed through the water purification channel WJ inside the water purification cartridge PC1 is stopped, and the raw water that has passed through the raw water channel WG outside the water purification cartridge PC1 passes through the raw water outlet 432g and the channel hole 444. It is discharged from the discharge port 422.

  As described above, the switching mechanism of the third embodiment is a discharge port selecting mechanism using the disc portion rotating with the operation portion (dial) and the opposing disc portion. By adding the above-described cam mechanism to the discharge port selection mechanism, the disc portion and the opposed disc portion can be separated between the raw water discharge state and the purified water discharge position. This separation prevents the disadvantage that both the raw water and the purified water are shut off and high water pressure acts.

  As shown in FIGS. 28 and 29, the water discharge head 408 has a restricting member RG3. The restricting member RG3 plays a role of restricting switching to the clean water discharge state when the water purification cartridge PC1 is not attached.

  Although not shown, the water discharge head 408 has a biasing member. The biasing member biases the regulating member RG3 such that the regulating member RG3 is in the first state.

  As shown in FIGS. 28 and 29, in the mounted state, the restricting member RG3 is in the second state J2. In the second state J2, the restricting member RG3 does not prevent the movement of the shaft 432 in the front-rear direction. Even in the state in which the shaft 432 has moved most backward, the front end portion of the restricting member RG3 in the second state J2 enters the main flow path 432d from the rear inlet port 432c, so movement of the shaft 432 It does not disturb (see FIG. 29). As a result, the transition from the raw water discharge state to the clean water discharge state is achieved.

  30 (a) and 30 (b) are cross-sectional views in the unmounted state. In FIG. 30A, the operation unit 414 is at the raw water discharge position. In FIG. 30B, the operation unit 414 is in the switching restriction position. As described above, the switching restriction position is a position between the raw water discharge position and the clean water discharge position, and is a position at which the operation of the operation unit 414 toward the clean water discharge state is restricted.

  Note that FIG. 27 (b) described above shows the operation part 414 in the switching restriction position. Fig.27 (a) shows the operation part 414 of a raw water discharge position, FIG.27 (c) shows the operation part 414 of a clean water discharge position. As described above, the raw water discharge position, the purified water discharge position, and the switching restriction position are concepts including the rotational position in the circumferential direction.

  As shown in FIG. 30A, in the unmounted state, the restricting member RG3 is in the first state J1. On the other hand, as described above, in the mounted state, the restricting member RG3 is in the second state J2 (see FIGS. 28 and 29).

  In the present embodiment, the difference in the state of the restricting member RG3 is the difference in the attitude of the restricting member RG3. This difference in attitude is achieved by rotation. By mounting the water purification cartridge PC1 in the cartridge mounting portion, the end face EF1 of the water purification cartridge PC1 abuts on the restricting member RG3, and the restricting member RG3 rotates. By this rotation, the restricting member RG3 shifts from the first state J1 (first attitude) to the second state J2 (second attitude).

  When the water purification cartridge PC1 is not attached and the regulating member RG3 is in the first state J1, in the process of switching from the raw water to the purified water, the interlocking contact portion LC3 (rear end face of the shaft member 432) It abuts on the switching restricting portion (see FIG. 30 (b)). When the operation part 414 is rotated from the raw water discharge position, the interlocking contact part LC3 abuts on the switching restricting part 460 of the restricting member RG3 before the operation part 414 reaches the clean water discharge position. The switching restricting portion 460 is a front end portion of the restricting member RG3 in the first state J1. Due to this contact, the operation unit 414 can not be further rotated to the clean water discharge position side.

  The restricting member RG3 in the first state J1 is in a state (posture) capable of receiving the operation force transmitted from the operation portion 414 to the interlocking contact portion LC3 (shaft member 432). As shown in FIG. 30B, the leading end of the restricting member RG3 is engaged with the corner formed by the rear end face LC3 of the shaft member 432 and the inner circumferential surface 450 of the adjacent portion, whereby the restricting member RG3 is formed. Is stably supporting the rear end surface of the shaft member 432 without rotating.

  Thus, when the restricting member RG3 is in the first state J1, the switching from the raw water to the purified water is restricted by the restricting member RG3. When the restricting member RG3 is in the first state J1, the transition from the raw water discharge state to the clean water discharge state is restricted. When the restricting member RG3 is in the first state J1, the operation unit 414 can not be rotated from the raw water discharge position to the clean water discharge position.

Fourth Embodiment
FIG. 31 is a perspective view of a water faucet apparatus 600 according to the fourth embodiment. The faucet device 600 is attached to a sink (not shown). In FIG. 31, the description of the portion that is not visible, that is, the portion inside the sink is omitted.

  The faucet device 600 has a main body portion 604, a lever handle 606 and a water discharge head 608. The faucet device 600 is a so-called single lever type faucet. The temperature of the water discharge can be adjusted by turning the lever handle 606 left and right. The water discharge amount can be adjusted by turning the lever handle 606 up and down. Inside the main body portion 604, a valve mechanism that allows adjustment of the temperature and the amount of water discharge is incorporated. Although not shown, the faucet device having the faucet device 600 has a hot water introduction pipe and a water introduction pipe.

  The water discharge head 608 includes a water conveyance unit 610, a switching unit 612, an operation unit 614, a water shape adjustment unit 616, a display unit 620, and a discharge port 622. In the present embodiment, the operation unit 614 is a lever. By operating (rotating) the operation unit 614, switching between raw water and purified water is possible. In the present application, the water discharge head 608 is also referred to as a lever type. Further, since the lever 614 is located to the side of the switching portion 612, the water discharge head 608 is also referred to as a lateral lever type. This horizontal lever type water discharge head is known.

  In the present embodiment, the display unit 620 is a display window. Based on the display on the display window, it can be determined whether the raw water discharge state or the purified water discharge state. The water type adjustment unit 616 has a water type adjustment lever 618. By operating the water shape adjustment lever 618, the shape (water shape) of the water to be discharged can be changed.

  The water discharge head 608 has a raw water flow path and a clean water flow path. When the raw water channel is selected, the raw water is discharged from the discharge port 622. When the purified water channel is selected, the purified water is discharged from the discharge port 622.

  The switching unit 612 has a switching mechanism capable of switching the purified water or the raw water by the operation of the operation unit 614 (rotational operation of the horizontal lever). Details of this switching mechanism will be described later.

  32 (a) and 32 (b) are side views showing part of the water discharge head 608. FIG. FIG. 32 (a) is a side view in the raw water discharge state. FIG. 32 (b) is a side view in the water purification discharge state. In FIG. 32A, FIG. 32B and FIG. 33 and FIG. 34 described later, the cover covering the switching portion 612 and the water shape adjusting portion 616 is omitted.

  The operation unit 614 functions as a switching lever. When switching the flow path, the operation unit 614 is rotated. By rotating the operation unit 614, switching between the raw water channel and the purified water channel is performed. In the raw water discharge state, the operation unit 614 is in the first rotation position (see FIG. 32A). In the purified water discharge state, the operation unit 614 is in the second rotation position (see FIG. 32 (b)). In the present embodiment, the angle θ between the first rotational position and the second rotational position is 90 °. By rotating the operation unit 614 by an angle θ (90 °), switching between the raw water discharge state and the clean water discharge state is performed.

  FIG. 33 is a cross-sectional view of the water discharge head 608 in the raw water discharge state. FIG. 34 is a cross-sectional view of the water discharge head 608 in the clean water discharge state.

  The switching mechanism of the water discharge head 608 has a rotating portion 630 that rotates with the operation portion 614. The rotating portion 630 is cylindrical as a whole. The interior of the rotating unit 630 is hollow. The rotating portion 630 has a flow passage hole 632 penetrating between the outer surface and the inner surface. The rotating portion 630 also has a convex portion p4 and a concave portion r4 adjacent to the convex portion p4. As shown in FIGS. 33 and 34, the rotating portion 630 has a double structure having an outer layer and an inner layer, and provides an outer layer removing portion in which a part of the outer layer is removed in the double structure. Thus, the recess r4 is formed. Moreover, in the part corresponding to the said outer layer removal part, protrusion is formed in the outer surface of the inner layer part, and this protrusion is made into the convex part p4.

  The adjacent part adjacent to the rotation part 630 has a water purification port 634 for discharging the purified water having passed through the inside of the water purification cartridge PC1 toward the rotation part 630.

  In the raw water discharge state, the flow path hole 632 does not overlap the water purification port 634, and the water purification port 634 is closed by the rotating portion 630 (see FIG. 33). At this time, the flow path hole 632 communicates with the raw water flow path WG. Therefore, the purified water is stopped, and the raw water flows from the flow path hole 632 into the inside of the rotating portion 630 and is discharged from the discharge port 622.

  In the purified water discharge state, the flow path hole 632 overlaps the water purification port 634 (see FIG. 34). At this time, the flow path hole 632 is not in communication with the raw water flow path WG. Therefore, the raw water is stopped, and the purified water flows from the flow path hole 632 into the inside of the rotating portion 630 and is discharged from the discharge port 622.

  The rotating portion 630 has an interlocking contact portion LC4. The interlocking contact portion LC4 is the aforementioned convex portion p4.

  As shown in FIGS. 33 and 34, the water discharge head 608 has a restricting member RG4. The restricting member RG3 plays a role of restricting switching to the clean water discharge state when the water purification cartridge PC1 is not attached.

  Although not shown, the water discharge head 608 has a biasing member. The biasing member biases the regulating member RG4 such that the regulating member RG4 is in the first state.

  As shown in FIGS. 33 and 34, in the mounted state, the restricting member RG4 is in the second state J2. In the second state J2, the restricting member RG4 does not prevent the movement (rotation) of the rotating portion 630. In the second state J2, (the front end portion of) the restricting member RG4 is at a position away from the rotating portion 630. Thus, the restricting member RG4 does not affect the rotation of the rotating portion 630. As a result, the transition from the raw water discharge state to the clean water discharge state is achieved.

  FIGS. 35 (a) and 35 (b) are cross-sectional views in the unmounted state. In FIG. 35 (a), the operation unit 614 is at the raw water discharge position. In FIG. 35 (b), the operation unit 614 is in the switching restriction position.

  As shown in FIG. 35A, in the unmounted state, the restricting member RG4 is in the first state J1. On the other hand, as described above, in the mounted state, the restricting member RG4 is in the second state J2 (see FIGS. 33 and 34).

  In the present embodiment, the difference in the state of the restricting member RG4 is the difference in the attitude of the restricting member RG4. This difference in attitude is achieved by rotation. By mounting the water purification cartridge PC1 in the cartridge mounting portion, the end face EF1 of the water purification cartridge PC1 abuts on the restriction member RG4, and the restriction member RG4 rotates. By this rotation, the restricting member RG4 shifts from the first state J1 (first attitude) to the second state J2 (second attitude). This rotation is such that the front end of the restriction member RG4 is raised.

  In the unmounted state, when the restricting member RG4 is in the first state J1 and the raw water discharge state, the front end of the restricting member RG4 enters the recess r4 (FIG. 35A). When the operation portion 614 is rotated to the clean water discharge position from this state, the switching restricting portion 660 of the restricting member RG4 abuts on the convex portion p4 (the interlocking contact portion LC4). As shown in FIG. 35B, the switching restricting portion 660 of the restricting member RG4 is sandwiched between the convex portion p4 and the adjacent portion. Therefore, the operation unit 614 can not be further rotated to the clean water discharge position side. The switching restricting portion 660 is a front end portion of the restricting member RG4 in the first state J1.

  The restricting member RG4 in the first state J1 and in contact with the convex portion p4 is in a state capable of receiving the operation force transmitted from the operation portion 614 to the interlocking contact portion LC4 (convex portion p4). As described above, since the switching restricting portion 660 of the restricting member RG4 is sandwiched between the convex portion p4 and the adjacent portion, the restricting member RG4 can stably support the convex portion p4 without rotating.

  Thus, when the regulating member RG4 is in the first state J1, the switching from the raw water to the purified water is regulated by the regulating member RG4. When the restricting member RG4 is in the first state J1, the transition from the raw water discharge state to the clean water discharge state is restricted. When the restriction member RG4 is in the first state J1, the operation unit 614 can not be rotated from the raw water discharge position to the clean water discharge position.

First to fourth embodiments
As described above, each of the above-described embodiments includes the switching mechanism capable of switching whether the spouted water from the discharge port is raw water or purified water, the regulating member, and the water purification cartridge. The regulating member is capable of mutual transition between the first state J1 and the second state J2.

  In each of the above embodiments, the transition between the first state J1 and the second state J2 is achieved by the rotation of the regulating member. The method of this transition is not limited to the rotation of the regulating member. Besides rotation, movement (parallel movement), movement accompanied by rotation, etc. are exemplified. The state change between the first state J1 and the second state J2 is not limited as long as the purpose of the first state J1 and the second state J2 is achieved. That is, the switching from the raw water to the clean water by the switching mechanism may be restricted in the first state J1, and the switching from the raw water to the clean water by the switching mechanism may be permitted in the second state J2.

  The water purification cartridge PC1 has a restriction release unit that shifts the restriction member from the first state J1 to the second state J2. In each embodiment described above, this restriction release portion is the downstream end face EF1 of the water purification cartridge PC1. Of course, the restriction release portion is not limited to the end face EF1. Any part of the water purification cartridge PC1 can be a deregulation part. In the embodiments described above, the restriction release portion of the water purification cartridge PC1 is in direct contact with the restriction member. From the viewpoint of direct contact with the restricting member, as the restricting portion, (a part of) the connection end 140 is preferable, and the end face EF1 is more preferable. However, the restriction release portion may not be in direct contact with the restriction member, and in this case, the setting freedom of the position of the restriction release portion is further enhanced.

For example, the following configurations (a) and (b) may be mentioned as an example in which the restriction release portion is not in direct contact with the restriction member.
(A) The water spouting head has a link portion connected to the regulating member, and the regulation releasing portion abuts on the link portion. When the restriction release portion abuts on the link portion, the state of the link portion changes, and the state of the restriction member shifts from the first state J1 to the second state J2 in conjunction with the link portion.
(B) The water discharge head includes a detection unit that can detect the presence of the restriction release unit, and a drive unit that can drive the restriction member. When the restriction release unit is detected by the detection unit, the drive unit drives the restriction member, and the state of the restriction member shifts from the first state J1 to the second state J2.

  The link part of (a) may be in the form of, for example, a push button (protrusion). The detection unit (b) may detect the restriction release unit electrically or magnetically, for example.

  Each of the embodiments described above has a biasing member that biases the regulating member to the first state J1. The biasing member can reliably bring the regulating member into the first state J1 in the unmounted state. This biasing member may not be necessary. The restriction member may be in the first state J1 in the unmounted state. For example, the regulating member may be brought into the first state J1 by gravity acting on the regulating member.

  The restricting member has a switch restricting portion which is at the first position in the first state J1 and at the second position in the second state J2. In each of the above-described embodiments, the front end portion (end portion on the operation unit side) of the restricting member in the first state J1 is the switching restricting portion. The position of the switching restricting portion in the restricting member is not limited.

  In each of the embodiments described above, the first position and the second position of the switching restricting portion are caused by the difference in the attitude of the restricting member.

  FIG. 36 is a side view showing the rotation of the restricting member RG1 according to the first embodiment. When the restricting member rotates around the rotation center line Z1, the switching control unit 114 moves on the circumference centered on the rotation center line Z1. By this movement, the position of the switching control unit 114 is changed. The position of the switching restriction unit 114 in the first state J1 is the first position PS1. The position of the switching restriction unit 114 in the second state J2 is the second position PS2.

  As described above, the method of mutual transition between the first state J1 and the second state J2 is not limited to the rotation of the restriction member, and may be movement (parallel movement or the like) of the restriction member. For example, the restricting member may slide. Therefore, the difference between the first position PS1 and the second position PS2 is not limited to the difference on a single arc.

  The switching control part 114 in the first position PS1 abuts on the interlocking contact part LC1 interlocked with the switching mechanism in the process of switching from raw water to clean water by the switching mechanism. In the single embodiment, the first position PS1 may be one or more than one.

  As described above, the restricting member RG1 according to the first embodiment includes the first state holding unit 116. The first state holding portion 116 holds the regulating member RG1 in the first state J1 by abutting on the adjacent portion AJ1 by the biasing force of the biasing member 104. Further, the first state holding portion 116 abuts on the adjacent portion AJ1, so that the first state J1 is stably maintained even if the switching restricting portion 114 is pressed by the interlocking contact portion LC1. Therefore, the switching to the purified water discharge state is reliably prevented (see FIG. 36). The adjacent part AJ1 is a part adjacent to the regulating member RG1.

  The restricting member RG1 is urged by the urging member 104 in the first rotational direction from the second state J2 toward the first state J1. The abutment force from the interlocking abutment portion LC1 acts in the direction of rotating the regulating member RG1 in the first rotation direction, but this rotation is blocked by the abutment between the first state holding portion 116 and the adjacent member AJ1. There is. On the other hand, the regulating member RG1 is rotated in the second rotational direction from the first state J1 toward the second state J2 by being in contact with the restriction releasing portion DR1 of the water purification cartridge PC1. In the restricting member RG1 in the second state J2, the pressing force by the restricting release portion DR1 and the urging force by the urging member 104 are balanced. Therefore, the second state J2 is stably maintained. Then, as described above, due to the biasing force of the biasing member 104, the regulating member RG1 can exhibit a removal assisting effect.

  The member which comprises a interlocking | linkage contact part is not limited. The interlocking contact portion interlocks with the switching mechanism. The interlocking contact portion interlocks with the operation portion. The interlocking contact portion may be a member included in the switching mechanism or a member not included in the switching mechanism. By restricting the movement of the interlocking contact portion to the clean water discharge state side, the operation of the operation unit to the clean water discharge state side is restricted.

  The switching control part 114 in the second position PS2 does not contact the interlocking contact part LC1 in the process of switching from raw water to clean water by the switching mechanism. In the single embodiment, the second position PS2 may be one or more than one.

  From the viewpoint that the transition between the first state J1 and the second state J2 can be achieved by a simple structure, it is preferable that the regulating member be rotatably fixed. Preferably, the mutual transition between the first state J1 and the second state J2 is achieved by the rotation of the restricting member.

  As described above, in each embodiment, the restriction releasing portion of the water purification cartridge PC1 is the downstream end face EF1. When the water purification cartridge PC1 is mounted at the regular position, the restriction release unit shifts the restriction member from the first state J1 to the second state J2.

  As FIG. 14 (a) and FIG.14 (c) show, regulation release part DR1 (end surface EF1) is a torus surface. The restriction release unit DR1 is a surface along the circumferential direction of the water purification cartridge PC1. The restriction release unit DR1 is an annular surface coaxial with the water purification cartridge PC1. The restriction release unit DR1 is a plane. The restriction release unit DR1 is along a plane perpendicular to the center line of the water purification cartridge PC1.

  Due to manufacturing errors, variations occur in the overall length of the water purification cartridge PC1. Due to this variation, the axial position of the restriction release portion DR1 (end surface EF1) in the mounted state varies. The axial direction means the axial direction of the water purification cartridge PC1.

  When the axial direction position of the restriction release portion DR1 is shifted, trouble may occur in the contact between the restriction release portion DR1 and the restriction release contact portion of the restriction member RG1. However, since the restriction release portion DR1 is distributed in an annular shape, the contact between the restriction release portion DR1 and the restriction member RG1 can be easily maintained even if the axial position of the restriction release portion DR1 shifts. In other words, even if the attitude (angle) of the restricting member RG1 is slightly changed, the contact between the restricting portion DR1 and the restricting member RG1 can be easily maintained. Thus, the second state J2 is reliably achieved.

  In the second state J2, the restriction member RG1 is in contact with the restriction release portion DR1 at two points. The first place is an abutment by the restriction releasing abutment 118 (the first restriction releasing abutment surface 112 a), and the second place is an abutment by the restriction releasing abutment 120 (the second restriction releasing abutment surface 112 b) (See FIG. 12 (b)). Therefore, the stability and reliability of the contact are enhanced, and the second state J2 is reliably maintained.

  FIG. 37 is an enlarged cross-sectional view of the water discharge head 8 of the first embodiment. FIG. 37 is a cross-sectional view in the vicinity of the downstream end of the water purification cartridge PC1.

  As described above, the water purification cartridge PC1 has the connection end 140. The cartridge mounting portion of the water discharge head 8 has an insertion portion 800 into which the connection end portion 140 is inserted. The insertion portion 800 means a portion adjacent to the radially outer side of the connection end portion 140. The radial direction means the radial direction of the water purification cartridge PC1. In the embodiment of FIG. 37, the insertion portion 800 is configured by a plurality of members.

  The connection end portion 140 has a gap forming portion 802 which forms a gap gp1 with the insertion portion 800. The gap forming portion 802 constitutes the downstream end of the connection end 140. The gap forming portion 802 constitutes the downstream end of the first cylindrical portion 150 (see FIG. 14). The gap gp1 is located radially outward of the gap forming portion 802. The radial direction means the radial direction of the water purification cartridge PC1. The gap gp1 exists over the entire periphery of the gap forming portion 802. The end face of the gap forming portion 802 is the above-described end face EF1. The end face of the gap forming portion 802 is the restriction releasing portion DR1.

  The end face EF1 is a circumferential continuous end face which is continuous over the entire circumferential direction (360 °) of the water purification cartridge PC1. The circumferential continuous end face EF1 extends in a direction perpendicular to the axial direction. By this configuration, even if the water purification cartridge PC1 and the insertion portion 800 of the water discharge head 8 are not aligned in the circumferential direction, the restriction member RG1 can be favorably contacted and operated. In other words, even if the water purification cartridge PC1 is attached to the water spouting head 8 in any circumferential positional relationship, the regulating member RG1 can be well abutted and operated. The end face EF1 is preferably a face continuously extending in a direction perpendicular to the axial direction, but “abut the regulation member RG1 well in contact with the water discharge head 8 in any circumferential positional relationship and It is also possible to adopt a configuration in which a recess or the like is provided midway within the range that can be operated.

  The end face EF1 is preferably a face, and the face is preferably in contact with the restricting member RG1, but the end face EF1 and the restricting member RG1 may be in contact with a line or a point. Specifically, contact of the ridge line of end face EF1 with the surface of restriction part RG1, contact of end face EF1 with ridge line of restriction part RG1, contact of end face EF1 with point of restriction member RG1, etc. are possible. is there. The abutment between the end face EF1 and the regulating member RG1 may be a plane abutment, a line abutment, or a point abutment.

  As mentioned above, the connection end 140 has an O-ring 162 (see FIG. 14). An O-ring 162 is located between the insert 800 and the connection end 140 to seal between them. With this seal, the connection end portion 140 can connect the water purification flow path WJ1 in the connection end portion 140 and the water purification flow path WJ2 downstream of the connection end portion 140 with high water tightness.

  As mentioned above, the connection end 140 has a flange 160 (see FIG. 14). The flanges 160 are provided in the entire circumferential direction. The circumferential direction means the circumferential direction of the water purification cartridge PC1 (connection end portion 140). The flange 160 is an example of a wall portion disposed upstream of the restriction release portion DR1 (end surface EF1). The flange 160 is an example of a wall portion disposed between the O ring 162 disposed on the upstream side of the restriction release unit DR1 and the restriction release unit DR1. The wall portion 160 may not be provided in the entire circumferential direction. The wall 160 may not support the O-ring 162. For example, the wall 160 may be provided alone at a position away from the O-ring.

  The O-ring 162 is disposed in the O-ring disposition groove. The O-ring disposition groove is a groove continuously connected to the circumference. The O-ring arrangement groove is a groove for arranging an O-ring provided on the upstream side of the wall portion 160. Here, the following E1, E2 and E3 are defined. E1 is a groove width of the O-ring disposition groove. E2 is the maximum width of the O-ring in a state in which the O-ring is attached to the O-ring disposition groove and the water purification cartridge is not attached to the cartridge attachment portion. E3 is the O-ring maximum width in a state in which the O-ring is attached to the O-ring disposition groove and the water purification cartridge is attached to the cartridge attachment portion. E1, E2 and E3 are all the width in the axial direction of the water purification cartridge. E1 is preferably greater than E2. Further, E1 is preferably larger than E3. Due to these large and small relationships, when the water purification cartridge is attached and detached to and from the cartridge mounting portion, the O-ring easily moves minutely inside the O-ring disposition groove, and the O-ring adheres to the O-ring disposition groove and the cartridge attachment portion. It becomes difficult. As a result, the attachment and removal of the water purification cartridge to the cartridge attachment portion is improved.

  In this embodiment, an O-ring 162 which is an annular packing having a circular cross section is used, but it is also possible to use an O-ring having an elliptical cross section. The cross-sectional shape of the annular packing is not limited. For example, as the annular packing, a square packing having a square cross section, a U packing having a U-shaped cross section, a V packing having a V-shaped cross section, a Y packing having a Y-shaped cross section, an X packing having an X-shaped cross section may be used. In addition, it is preferable to use an O-ring, in particular, an O-ring having a circular cross section, in terms of comprehensive prevention of adhesion between the water purification cartridge and peripheral members and the annular packing and securing of water tightness.

  In the present application, the radial outermost portion M1 of the restriction release unit DR1 is defined. The radially outermost portion M1 means a portion located radially outward in the restriction release portion DR1. In the embodiment of FIG. 37, the radially outermost part M1 is the outer peripheral edge of the end face EF1. The radial direction means the radial direction of the water purification cartridge PC1 (connection end portion 140).

  In the present application, the radial outermost part M2 of the wall portion 160 is defined. The radially outermost portion M2 means a portion of the wall portion 160 located at the outermost side in the radial direction. In the embodiment of FIG. 37, the radially outermost part M2 is the outer peripheral edge of the wall 160. The radial direction means the radial direction of the water purification cartridge PC1 (connection end portion 140).

  The radially outermost portion M1 of the restriction releasing portion DR1 is located radially inward of the radially outermost portion M2.

  The restriction release portion DR1 is a portion in contact with the restriction member RG1. If the restriction release portion DR1 is damaged or a depression occurs in the restriction release portion DR1, inconvenience may occur in the contact with the restriction member RG1. For example, contact with the regulating member RG1 may be insufficient, or the rotation angle of the regulating member RG1 may change depending on the circumferential position (phase) of the water purification cartridge PC1. From this point of view, when the water purification cartridge PC1 is attached, it is preferable that a collision between the restriction release unit DR1 and another member be avoided. In other words, it is preferable that the restriction release unit DR1 be excellent in collision avoidance.

  However, in reality, a collision between the restriction release unit DR1 and another member is likely to occur. When the water purification cartridge PC1 is attached, such as when replacing the used water purification cartridge PC1 with a new water purification cartridge PC1, the water purification cartridge PC1 is inserted into the cartridge attachment portion. In this insertion, the restriction release unit DR1 is the tip in the insertion direction. Therefore, another member (such as the insertion portion 800) is likely to hit the restriction release portion DR1.

  From the viewpoint of collision avoidance, the connection end 140 preferably has the gap forming portion 802 described above. Since the restriction release portion DR1 is radially inward of the adjacent insertion portion 800 by the gap forming portion 802, the collision avoidance property is enhanced.

  From the viewpoint of collision avoidance, the connection end 140 preferably includes the wall 160 described above. As shown in FIG. 37, a circumferential outer surface 804 is formed between the wall portion 160 and the restriction release portion DR1. The gap gp1 is located radially outward of the circumferential outer surface 804. The diameter of the circumferential outer surface 804 is constant. The diameter of the circumferential outer surface 804 is equal to the diameter of the radially outermost portion M1 of the restriction release portion DR1.

  It is preferable that the wall portion 160 be provided from the viewpoint of collision avoidance. Due to the presence of the wall portion 160, when inserting the water purification cartridge PC1, the probability that the wall portion 160 collides with another member is higher than that of the restriction release portion DR1. The wall portion 160 can function to protect the restriction release unit DR1. Therefore, the collision avoidance is enhanced. From the viewpoint of collision avoidance, the radially outermost portion M1 of the restriction releasing portion DR1 is preferably located radially inward of the radially outermost portion M2 of the wall portion 160.

  The insertion portion 800 has an inward convex portion 810. The inward convex portion 810 protrudes inward in the radial direction. The inward convex portion 810 is located downstream of the wall portion 160. The inward convex portion 810 is in contact with the wall portion 160. The water purification cartridge PC1 is positioned by this contact.

  In the present application, the radially innermost portion M3 of the inward convex portion 810 is defined. The radially innermost portion M <b> 3 means a portion of the inward convex portion 810 that is located on the innermost side in the radial direction. In the embodiment of FIG. 37, the radially innermost portion M3 is the inner peripheral edge of the inward convex portion 810. The radial direction means the radial direction of the water purification cartridge PC1 (connection end portion 140).

  From the viewpoint of collision avoidance, the radially outermost portion M1 of the restriction releasing portion DR1 is preferably located radially inward of the radially innermost portion M3 of the inward convex portion 810.

  FIG. 38 is the same cross-sectional view as FIG. Since the symbols are crowded in FIG. 37, FIG. 38 is described from the viewpoint of intelligibility.

  What is indicated by a double arrow D1 in FIG. 38 is the diameter of an imaginary cylindrical surface passing through the radially outermost portion M1 of the restriction release portion DR1. In the present embodiment, D1 is the outer diameter of the end face EF1. In addition, the virtual cylindrical surface in this application is coaxial with water purification cartridge PC1.

  What is indicated by a double arrow D2 in FIG. 38 is the diameter of an imaginary cylindrical surface passing through the radially outermost portion M2 of the wall portion 160. In the present embodiment, D2 is the outer diameter of the outer peripheral edge of the wall 160.

  What is indicated by a double arrow D3 in FIG. 38 is the diameter of the imaginary cylindrical surface passing through the radially innermost portion M3 of the inward convex portion 810. In the present embodiment, D3 is the inner diameter of the inward convex portion 810.

  What is indicated by a double arrow D4 in FIG. 38 is the diameter of the imaginary cylindrical surface passing through the radially outermost portion M4 of the connection end 140. In the present embodiment, D4 is the outer diameter of the maximum outer diameter portion of the connection end portion 140. In the present embodiment, D4 is the outer diameter of the radially outermost part M4. In the present embodiment, D4 is the outer diameter of the maximum outer diameter portion of the connection end portion 140. In the present embodiment, D4 is the outer diameter of the third cylindrical portion 154.

  What is indicated by a double arrow D5 in FIG. 38 is the diameter of an imaginary cylindrical surface passing through the radially innermost portion M5 of the adjacent portion AJ2 opposed to the radially outermost portion M4 of the connecting end portion 140. In the present embodiment, D5 is an inner diameter of a portion of the cartridge mounting portion facing the radially outermost portion M4. In other words, in the present embodiment, D5 is the inner diameter of the adjacent part AJ2. The adjacent portion AJ2 is a portion adjacent to the radially outermost portion M4.

  The opposing surface facing the outer surface of the gap forming portion 802 has a radially innermost portion M6 (see FIG. 37). What is indicated by a double arrow D6 in FIG. 38 is the diameter of the imaginary cylindrical surface passing through the radially innermost portion M6. In the present embodiment, D6 is the inner diameter of the facing surface facing the outer surface of the gap forming portion 802.

  What is indicated by a double arrow D7 in FIG. 38 is an axial distance between the center of the connection end O-ring 162 and the restriction release portion DR1.

  The unit of D1 to D7 is mm.

  From the viewpoint of collision avoidance, the difference (D2-D1) is preferably larger. 0.5 mm or more is preferable, as for a difference (D2-D1), 1.0 mm or more is more preferable, and 2.0 mm or more is still more preferable. If D1 is too small, the inner diameter of the end face EF1 may be reduced, and the flow area of the purified water may be reduced. Considering the flow rate, an undersized D1 is not preferable. In this respect, the difference (D2-D1) is preferably equal to or less than 6.0 mm, more preferably equal to or less than 5.0 mm, and still more preferably equal to or less than 4.0 mm. In the present embodiment, the difference (D2-D1) is 3.0 mm.

  From the viewpoint of collision avoidance, the difference (D3-D1) is preferably larger. 0.1 mm or more is preferable, as for a difference (D3-D1), 0.5 mm or more is more preferable, and 0.8 mm or more is still more preferable. Considering the flow rate, an undersized D1 is not preferable. From this viewpoint, the difference (D3-D1) is preferably 3.0 mm or less, more preferably 2.0 mm or less, and still more preferably 1.5 mm or less. In the present embodiment, the difference (D3-D1) is 1.0 mm.

  As described above, the gap gp1 is preferably large in terms of collision avoidance. In this respect, the difference (D6-D1) is preferably 0.2 mm or more, more preferably 0.5 mm or more, and still more preferably 1.0 mm or more. Considering the flow rate, an undersized D1 is not preferable. In this respect, the difference (D6-D1) is preferably equal to or less than 6.0 mm, more preferably equal to or less than 5.0 mm, and still more preferably equal to or less than 4.0 mm. In the present embodiment, the difference (D6-D1) is 2.0 mm.

  As shown in FIG. 37, a gap gp2 exists between the radially outermost portion M4 of the connection end portion 140 and the radially innermost portion M5 of the adjacent portion AJ2. It is preferable that the gap gp2 be small from the viewpoint of collision avoidance between the restriction release portion DR1 and the other member. By narrowing the gap gp2, positional deviation of the water purification cartridge PC1 in the radial direction is suppressed at the time of insertion. Thus, the collision avoidance between the restriction release portion DR1 and the other member is enhanced.

  From the viewpoint of collision avoidance, the difference (D5-D4) is preferably smaller than the difference (D6-D1).

  From the viewpoint of increasing the flow rate in the raw water channel WG, the difference (D5-D4) is preferably larger. From this viewpoint, the difference (D5-D4) is preferably 0.5 mm or more, more preferably 1.0 mm or more, and still more preferably 1.5 mm or more. If D5 is too large, the water discharge head with water purification function and the water purification cartridge tend to be large. In addition, if D4 is too small, the flow rate of the water purification channel WJ may be small, or the storage amount of the water purification material or the like may be small and the water purification capacity may be low. From these viewpoints, the difference (D5-D4) is preferably 5 mm or less, more preferably 4 mm or less, and still more preferably 3 mm or less. In the present embodiment, the difference (D5-D4) is 2.0 mm.

  From the viewpoint of increasing the flow rate of the water purification channel WJ and from the viewpoint of increasing the water purification capacity by increasing the storage amount of the water purification material or the like, it is preferable that D4 be larger. From this viewpoint, D4 is preferably 20 mm or more, more preferably 25 mm or more, and still more preferably 27 mm or more. From the viewpoint of preventing upsizing of the water discharge head with water purification function and the water purification cartridge, the excessive D4 is not preferable. From this viewpoint, D4 is preferably 40 mm or less, more preferably 35 mm or less, and still more preferably 32 mm or less. In the present embodiment, D4 is 29.5 mm.

  The connection end portion 140 has an abutment defining portion 812 for positioning the water purification cartridge PC1 in the axial direction. In the embodiment of FIG. 37, the contact defining portion 812 is a wall portion 160.

  When the water purification cartridge PC1 is inserted, the inward convex portion 810 may collide with the contact defining portion 812. Further, a force acts on the contact defining portion 812 by the water pressure of the purified water flowing downstream. For this reason, the contact defining portion 812 requires rigidity and strength. From this point of view, it is preferable that the contact defining portion 812 have an appropriate axial thickness. Furthermore, as described above, it is preferable to secure the gap gp1, and for that purpose, it is preferable to provide the gap forming portion 802. From these viewpoints, D7 is preferably 2.0 mm or more, more preferably 4.0 mm or more, and still more preferably 5.0 mm or more. In consideration of downsizing of the water discharge head, D5.0 is preferably equal to or less than 15.0 mm, more preferably equal to or less than 10.0 mm, and still more preferably equal to or less than 8.0 mm. In the present embodiment, D7 is 6.0 mm.

  As described above, the regulating member RG1 rotates around the rotation center line Z1 in the transition from the first state J1 to the second state J2. By this rotation, both end portions (restriction releasing contact portion 112, switching restricting portion 114) of the restricting member RG1 can move to a position away from the center line Z2 of the water purification cartridge PC1 (see FIG. 38). For this reason, the both ends of regulation member RG1 become easy to contact adjoining part AJ1. When this contact occurs, the rotation of the regulating member RG1 is inhibited, and the second state J2 can not be realized. Further, as described above, since the dimensional error occurs in the length of the water purification cartridge PC1, the position of the end face EF1 may vary. In order to realize the second state J2 in the entire range of this variation, an angular range is required for the second state J2. When the contact occurs in this angle range, the rotation of the regulating member RG1 is inhibited, and the number of defective water purification cartridges PC1 that can not realize the second state J2 increases.

  In order to avoid these problems, the rotation center line Z1 should be located near the center line Z2. 3.0 mm or less is preferable, as for the distance of rotation center line Z1 and center line Z2, 2.0 mm or less is more preferable, and 1.0 mm or less is still more preferable. The lower limit value of the distance between the rotation center line Z1 and the center line Z2 is 0 mm. In the present embodiment, the distance between the rotation center line Z1 and the center line Z2 is 0 mm (see FIG. 38).

  When the rotation center line Z1 of the restriction member RG1 is made close to the center line Z2, it is preferable that the restriction release portion DR1 in contact with the restriction member RG1 also be close to the center line Z2. That is, it is preferable that D1 be small from the viewpoint of contactability with the restricting member RG1. From this viewpoint, D1 is preferably equal to or less than 20.0 mm, more preferably equal to or less than 16.0 mm, and still more preferably equal to or less than 14.0 mm. From the viewpoint of the flow rate, D1 is preferably equal to or greater than 6.0 mm, more preferably equal to or greater than 8.0 mm, and still more preferably equal to or greater than 10.0 mm. In the present embodiment, D1 is 12.0 mm.

  From the viewpoint of contactability with the restriction member RG1 and collision avoidance, D1 / D2 is preferably 0.95 or less, more preferably 0.90 or less, and still more preferably 0.85 or less. From the viewpoint of the flow rate, D1 / D2 is preferably equal to or greater than 0.60, more preferably equal to or greater than 0.70, and still more preferably equal to or greater than 0.75. In the present embodiment, D1 / D2 is 0.80.

  From the viewpoint of contact with the restriction member RG1 and collision avoidance, D1 / D4 is preferably equal to or less than 0.70, more preferably equal to or less than 0.60, and still more preferably equal to or less than 0.50. From the viewpoint of the flow rate, D1 / D4 is preferably 0.25 or more, more preferably 0.30 or more, and still more preferably 0.35 or more. In the present embodiment, D1 / D4 is 0.41.

  Resin or metal is mentioned as a material of a control member. From the viewpoint of cost, when the material is metal, the manufacturing method of the regulating member is preferably sintering, casting or forging. When the material is a resin, a thermoplastic resin which is easy to mold is preferable. From the viewpoint of moldability, polyoxymethylene (POM), polyphenylene sulfide (PPS), acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP) are more preferable. From the viewpoint of strength, polyphenylene sulfide (PPS) is particularly preferred.

  Resin or a metal is mentioned as a material of the deregulation part of a water purification cartridge. From the viewpoint of cost, when the material is metal, the manufacturing method of the deregulation part is preferably sintering, casting or forging. When the material is a resin, a thermoplastic resin which is easy to mold is preferable. From the viewpoint of moldability, polyoxymethylene (POM), polyphenylene sulfide (PPS), acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP) are more preferable. From the viewpoint of moldability and cost, acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP) are particularly preferable.

  While the water purification cartridge PC1 is replaced every predetermined use period, the restricting member is not replaced. It is preferable that the regulating member used repeatedly for a long time has high rigidity and high wear resistance. From this viewpoint, the longitudinal elastic modulus of the material of the regulating member is preferably 0.1 GPa or more, more preferably 1.0 GPa or more, and still more preferably 3.0 GPa or more. In consideration of the above-mentioned preferable material, the longitudinal elastic modulus of the material of the regulating member is preferably 10 GPa or less, more preferably 9 GPa or less, and still more preferably 8 GPa or less. The longitudinal elastic modulus of the material of the regulating member is preferably larger than the longitudinal elastic modulus of the material of the regulation releasing portion of the water purification cartridge. The longitudinal elastic modulus is obtained from the relationship between the amount of strain and the tensile stress, and is a proportional constant of the amount of strain and stress in the elastic range, and is also called Young's modulus. The longitudinal modulus of elasticity of common materials is described in many documents and is well known. If the literature values are unclear, the longitudinal modulus can be measured according to ASTM D638. In this measurement, a test piece made of the same material as the member to be measured may be used.

  In the above-mentioned embodiment, although the permeable part 26 is an aspect which can permeate water from the outer peripheral surface of water purification cartridge PC1 to an inside, the structure of a permeable part is not restricted to this aspect. For example, the outer peripheral surface of the water purification cartridge PC1 may be formed of a non-water-permeable outer peripheral wall, and a permeable portion may be provided inside the outer peripheral wall. In this case, the water can flow into the water purification cartridge PC1 from the upstream end (rear end) of the water purification cartridge PC1, pass through the permeation portion, and reach the connection end 140. In this configuration, a through hole or the like is provided in the rear formation portion 142 described above, and the inflow of water from the rear end of the water purification cartridge PC1 is allowed.

  In the said embodiment, a water-purifying function part is made into a permeation | transmission part, and purified water is produced | generated by making raw water permeate | transmit this permeation | transmission part. As mentioned above, this permeable part is only an example of the water purification functional part. Clean water may be generated without being permeated through the permeate. For example, the purified water can be produced also by the fact that the water purification cartridge has a metal material and metal ions having an effect of sterilization, antibacterial, sterilization or bacteria growth inhibition are released from the metal material.

In the present application, purified water is a concept including the following (1) and (2) generated water.
(1) Produced water from which substances or ions in water have been removed by an adsorbent or a filtration membrane or the like.
(2) Produced water in which metal ions, electrons, substances, etc. are contained in water to impart useful functions to the water, such as containing metal ions in the water in order to impart functions such as sterilization to the water.

  Specifically, the purified water in the present application is a concept including water generated by the following Function A and / or Function B. In other words, the water purification function unit in the present application is a concept including a function unit having the following function A and / or function B.

[Function A]
The function A is one or more functions selected from the group consisting of the following A1, A2, A3, A4 and A5.
A1: The ability to adsorb and remove substances in water using an adsorbent such as activated carbon.
A2: Function to filter the substance in water using a filter medium. Preferably, the filter medium is a filtration membrane such as a reverse osmosis membrane, an ultrafiltration membrane, a microfiltration membrane, a nanofiltration membrane, or a porous hollow fiber membrane, and the function of filtering substances in water using this filtration membrane.
A3: Function to take in and remove metal ions in water using ion exchange resin etc.
A4: A function of releasing metal ions having an effect of inhibiting bacteria growth, bacteria, sterilization and / or growth of bacteria from metal materials.
A5: A function to generate active oxygen by releasing metal ions from the metal material and incorporating electrons generated with the release of the metal ions into oxygen in water.

  Examples of substances in water to be purified include chlorine, volatile organic compounds, pesticides, musty odor substances, heavy metals and the like. Preferably, one or more selected from the group consisting of chlorine, volatile organic compounds, pesticides, musty odorants and heavy metals is removed.

  Examples of the volatile organic compound include chloroform, bromodichloromethane, dibromochloromethane, bromoform, tetrachloroethylene, trichloroethylene, 1,1,1-trichloroethane, total trihalomethane and the like. Preferably, one or more selected from the group consisting of chloroform, bromodichloromethane, dibromochloromethane, bromoform, tetrachloroethylene, trichloroethylene, 1,1,1-trichloroethane, total trihalomethanes are removed.

  Examples of the agrochemical substance include 2-chloro-4,6-bistilamino-1,3,5-triazine and the like. It is preferred that the 2-chloro-4,6-bistilamino-1,3,5-triazine be removed.

  Examples of the musty odor substance include 2-methylisoborneol, geosmin, phenols and the like. Preferably, one or more selected from the group consisting of 2-methylisoborneol, geosmin and phenols is removed.

  Examples of the heavy metals include lead, mercury, copper, arsenic and cadmium. Preferably, one or more selected from the group consisting of lead, mercury, copper, arsenic and cadmium is removed.

  Examples of metal ions in the function A4 include zinc ions and silver ions. Preferably, one or more selected from the group consisting of zinc ions and silver ions is released.

  Examples of the bacteria in the function A4 include E. coli and staphylococci, and the like, and also includes various fungi which are defined (included) as general bacteria. It is preferable that one or more of the bacteria be eradicated, antibacterially, disinfected, or inhibited from growing.

  The active oxygen in the function A5 can degrade organic matter such as bacteria. Examples of this bacterium include Escherichia coli and staphylococcal bacteria, and also include bacteria which are defined (included) as general bacteria. Preferably, one or more of the bacteria is degraded.

  In addition, while being able to remove chlorine and a harmful substance effectively and being able to hold down the manufacturing cost of a water purification cartridge, the water purification cartridge provided with function A1 is preferred. In addition, it can also be set as a water purification cartridge provided with one or more functions and function A1 chosen from functions A2, A3, A4 and A5.

[Function B]
Function B is "Six water purifiers" of separate table second (Article 2 related) of miscellaneous goods industrial goods quality indication regulations (revision day: March 30, 2017 / enforcement day: April 1, 2017) It is a function which purifies using filter media and / or a medium which are defined. In other words, the water purification cartridge is the sixth clean water of separate table second (Article 2 related) of General Goods Industrial Products Quality Labeling Regulations (Revision Date: March 30, 2017 / Enforcement Date: April 1, 2017). It is preferable to provide a water purification functional unit that performs water purification using a filter medium and / or a medium defined in the

  The water purification function unit having the function A and / or the function B may constitute a part of the water purification channel, may be disposed in the water purification channel, or is circulated in the water purification channel It may be disposed in the puddle.

  The water purification cartridge may be an integral type in which the whole is inseparably integrated, or may be a composite type composed of a plurality of members that can be separated from each other.

  The composite type may include, for example, an adapter member including the restriction release unit, and a cartridge main body. The adapter member may or may not be connectable to the cartridge body. In other words, the adapter member may be attachable to the cartridge body or may not be attachable to the cartridge body. When the adapter member is attachable to the cartridge body, the adapter member may be removably attached to the cartridge body or non-removably attached.

The configurations of the adapter member and the cartridge body are not limited, and may be any of the following configurations B1 to B4, for example.
B1: A configuration in which the adapter member is mounted on the cartridge mounting portion in a state of being mounted on the cartridge body.
B2: A structure in which the adapter member is attached to the cartridge mounting portion first, and then the cartridge body is attached to the adapter member.
B3: A structure in which the adapter member is attached to a part of the cartridge attachment unit, and the cartridge body is attached to the other part of the cartridge attachment unit.
B4: A structure in which the adapter member is attached to a part of the cartridge mounting portion first, and then the cartridge body is attached to the other portion of the adapter member and the cartridge mounting portion.

  In the configurations B1 to B4, the adapter member may be configured to be removably attached to the cartridge mounting portion or may be configured to be irremovably attached. However, if it can not be removed, the regulating member is held in the second state. Thus, the adapter member is preferably removably attached to the cartridge attachment portion.

The following appendices are the claims at the time of filing of the original application.
[Supplementary Note 1]
A discharge port,
A switching mechanism capable of switching whether water spouted from the discharge port is raw water or purified water;
The first state and the second state can be mutually switched, and in the first state, switching from the raw water to the purified water by the switching mechanism is regulated, and in the second state, the raw water to the purified water by the switching mechanism A restriction member that permits switching of the
A water purification cartridge having a restriction releasing unit for causing the restriction member to shift from the first state to the second state;
A cartridge mounting unit,
And have
The regulating member is in the first state when the water purification cartridge is not attached to the cartridge attachment unit, and when the water purification cartridge is attached to the cartridge attachment unit, the regulation member is released due to the restriction releasing unit. The water discharge head with a water purification function to be in the second state.
[Supplementary Note 2]
The restricting member has a switching restricting portion in the first position in the first state and in the second position in the second state,
The switching restricting portion in the first position abuts on an interlocking contact portion interlocking with the switching mechanism in the process of switching from raw water to clean water by the switching mechanism,
The water discharging head with a water purification function according to claim 1, wherein the switching restricting part in the second position does not contact the interlocking contact part in the process of switching from raw water to clean water by the switching mechanism.
[Supplementary Note 3]
The water discharging head with a water purification function according to claim 1 or 2, wherein the restricting member shifts from the first state to the second state when the restricting release portion abuts on the restricting member.
[Supplementary Note 4]
The regulating member is rotatably fixed,
The water discharging head with a water purification function according to any one of appendices 1 to 3, wherein mutual transition between the first state and the second state is achieved by rotation of the restriction member.
[Supplementary Note 5]
The water faucet apparatus provided with the water discharging head of any one of Additional remarks 1-4.
[Supplementary Note 6]
It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
A water purification cartridge, comprising: a water purification function unit; and a restriction release unit for shifting the restriction member from the first state to the second state.
[Supplementary Note 7]
The water purification cartridge according to claim 6, wherein the restriction release unit can shift the restriction member from the first state to the second state by contacting the restriction member.
[Supplementary Note 8]
The water purification cartridge according to Supplementary Note 6 or 7, wherein the restriction release part is an end face on the downstream side of the water purification cartridge.
[Supplementary Note 9]
It has a connection end that constitutes the downstream end of the water purification cartridge,
The cartridge mounting portion has an insertion portion into which the connection end portion is inserted;
The connection end portion has a gap forming portion that forms a gap with the insertion portion,
The water purification cartridge according to any one of appendices 6 to 8, wherein the end face of the gap forming portion is the restriction releasing portion.
[Supplementary Note 10]
The connection end further includes an O-ring disposed upstream of the restriction releasing part, and a wall part disposed between the restriction releasing part and the O-ring.
The water purification cartridge according to Supplementary Note 9, wherein the radially outermost part of the restriction releasing portion is positioned radially inward of the radially outermost part of the wall portion.

  The present application also describes other inventions not included in the invention according to the claims (including the independent claims). Each form, member, structure, etc. described in the claim and embodiment of this application are recognized as invention based on the effect which each has.

  The respective forms, members, configurations and the like shown in each of the above-described embodiments individually include the invention according to the claims of the present application, even if they do not have all the forms, members or configurations of these embodiments. It can be applied to all the inventions described.

  The method described above can be used for water taps for any application.

2, 200, 400, 600 ... faucet apparatus 4, 204, 404, 604 ... main body 6, 206, 406, 606 ... lever handle 8, 208, 408, 608 ... water discharge head 14 , 214, 414, 614 ... operation part RG1-RG4 ... restriction member DR1-DR4 ... restriction release part LC1-LC4 ... interlocking contact part PC1 ... water purification cartridge 140 ... water purification cartridge Connection end EF1 ... end face (end face on the downstream side of the water purification cartridge PC1)
J1 ··· First state of restriction member J2 ··· Second state of restriction member

Claims (12)

It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water. The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purification function unit, the restriction release unit that shifts the restriction member from the first state to the second state, the connection end that constitutes the downstream end of the water purification cartridge, and the connection end And a wall disposed upstream of the deregulation unit,
The diameter of a virtual cylindrical surface which is coaxial with the water purification cartridge through the radially outermost part of the restriction releasing portion is D1.
When the diameter of the imaginary cylindrical surface which is coaxial with the water purification cartridge through the radially outermost part of the wall portion is D2,
Said D1 is 6.0 mm or more and 20.0 mm or less,
The water purification cartridge whose difference (D2-D1) is 0.5 mm or more and 6.0 mm or less. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purification function unit, the restriction release unit that shifts the restriction member from the first state to the second state, the connection end that constitutes the downstream end of the water purification cartridge, and the connection end And a wall disposed upstream of the deregulation unit,
The diameter of a virtual cylindrical surface which is coaxial with the water purification cartridge through the radially outermost part of the restriction releasing portion is D1.
When the diameter of the imaginary cylindrical surface which is coaxial with the water purification cartridge through the radially outermost part of the wall portion is D2,
Said D1 is 6.0 mm or more and 20.0 mm or less,
The water purification cartridge whose D1 / D2 is 0.60 or more and 0.95 or less. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purification function unit, the restriction release unit that shifts the restriction member from the first state to the second state, the connection end that constitutes the downstream end of the water purification cartridge, and the connection end And a wall disposed upstream of the deregulation unit,
The cartridge mounting portion has an insertion portion into which the connection end portion is inserted, and the insertion portion protrudes radially inward and contacts the wall portion at the downstream side of the wall portion. Has a convex,
The diameter of a virtual cylindrical surface which is coaxial with the water purification cartridge through the radially outermost part of the restriction releasing portion is D1.
When the diameter of an imaginary cylindrical surface coaxial with the water purification cartridge passes through the radially innermost portion of the inward convex portion and the diameter of the imaginary cylindrical surface is D3,
Said D1 is 6.0 mm or more and 20.0 mm or less,
The water purification cartridge whose difference (D3-D1) is 0.1 mm or more and 3.0 mm or less. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purifier includes a water purification function unit, a restriction release unit that shifts the restriction member from the first state to the second state, and a connection end that constitutes the downstream end of the water purification cartridge.
The cartridge mounting portion has an insertion portion into which the connection end portion is inserted;
The connection end portion has a gap forming portion that forms a gap with the insertion portion,
The insertion portion has an opposing surface facing the outer surface of the gap forming portion,
The inner diameter of the opposite surface is D6,
When the diameter of the virtual cylindrical surface coaxial with the water purification cartridge passes through the radially outermost part of the restriction releasing portion and the diameter of the imaginary cylindrical surface is D1,
Said D1 is 6.0 mm or more and 20.0 mm or less,
The water purification cartridge whose difference (D6-D1) is 0.2 mm or more and 6.0 mm or less. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purifier includes a water purification function unit, a restriction release unit that shifts the restriction member from the first state to the second state, and a connection end that constitutes the downstream end of the water purification cartridge.
The diameter of a virtual cylindrical surface which is coaxial with the water purification cartridge through the radially outermost part of the restriction releasing portion is D1.
When the diameter of the virtual cylindrical surface coaxial with the water purification cartridge passing through the radially outermost part of the connection end is D4:
Said D1 is 6.0 mm or more and 20.0 mm or less,
The water purification cartridge whose D1 / D4 is 0.25 or more and 0.70 or less. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purifier includes a water purification function unit, a restriction release unit that shifts the restriction member from the first state to the second state, and a connection end that constitutes the downstream end of the water purification cartridge.
The diameter of a virtual cylindrical surface which is coaxial with the water purification cartridge through the radially outermost part of the restriction releasing portion is D1.
When the diameter of the virtual cylindrical surface coaxial with the water purification cartridge passing through the radially outermost part of the connection end is D4:
The D4 is 20 mm or more and 40 mm or less,
The water purification cartridge whose D1 / D4 is 0.25 or more and 0.70 or less. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purifier includes a water purification function unit, a restriction release unit that shifts the restriction member from the first state to the second state, and a connection end that constitutes the downstream end of the water purification cartridge.
The cartridge mounting portion has an adjacent portion facing the radially outermost portion of the connection end portion,
The diameter of a virtual cylindrical surface coaxial with the water purification cartridge passing through the radial outermost portion of the connection end is D4;
When the inner diameter of the adjacent portion is D5,
The D4 is 20 mm or more and 40 mm or less,
The water purification cartridge whose difference (D5-D4) is 0.5 mm or more and 5 mm or less. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water. The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purifier includes a water purification function unit, a restriction release unit that shifts the restriction member from the first state to the second state, and a connection end that constitutes the downstream end of the water purification cartridge.
The connection end has an O-ring,
When an axial distance between the center of the O-ring and the restriction releasing portion is D7,
A water purification cartridge in which D7 is 2.0 mm or more and 15.0 mm or less. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purifier includes a water purification function unit, a restriction release unit that shifts the restriction member from the first state to the second state, and a connection end that constitutes the downstream end of the water purification cartridge.
The diameter of a virtual cylindrical surface which is coaxial with the water purification cartridge through the radially outermost part of the restriction releasing portion is D1.
When the diameter of the virtual cylindrical surface coaxial with the water purification cartridge passing through the radially outermost part of the connection end is D4:
Said D1 is 6.0 mm or more and 20.0 mm or less,
The water purifier cartridge whose said D4 is 20 mm or more and 40 mm or less. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
A water purification function unit; and a restriction release unit for shifting the restriction member from the first state to the second state,
The water purification cartridge, wherein the restriction release part is an annular surface coaxial with the water purification cartridge. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
A water purification function unit; and a restriction release unit for shifting the restriction member from the first state to the second state,
The water purification cartridge, wherein the restriction release part is a flat surface perpendicular to a center line of the water purification cartridge. It is possible to mutually switch between the first state and the second state, and the switching mechanism capable of switching between the discharge port and whether the spouted water from the discharge port is the raw water or the purified water, and in the first state, the purified water from the raw water by the switching mechanism The water purification cartridge mountable to a water discharge head with a water purification function provided with a restriction member that restricts switching to the switching mechanism and that allows switching from raw water to clean water by the switching mechanism in the second state, and a cartridge mounting portion And
The water purifier includes a water purification function unit, a restriction release unit that shifts the restriction member from the first state to the second state, and a connection end that constitutes the downstream end of the water purification cartridge.
The connecting end portion includes a wall portion disposed upstream of the restriction releasing portion, an O-ring disposition groove provided upstream of the wall portion, and an O-ring disposed in the O-ring disposition groove Have,
The groove width of the O-ring disposition groove is set to E1,
When the O-ring is attached to the O-ring disposition groove and the water purification cartridge is attached to the cartridge attachment portion, the maximum width of the O-ring is E3.
Water purification cartridge where E1 is larger than E3.

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