JP2006299682A - Channel switching operating lever, and water purifier using the operating lever - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a channel switching operating lever which allows operating force to be applied to a lever body positively and with good balance around a rotating shaft of the lever body, to thereby contribute to prevention of occurrence of unnecessary stress, and improved operability, and to provide a water purifier using the operating lever. <P>SOLUTION: The channel switching operating lever is provided with the lever body 22 which is connected to a rotary channel switching valve in a manner unitarily rotatable with the same in a predetermined angular range, and an operating piece 23 protruding from the lever body 22 in a radially outward direction. Herein operation auxiliary projections 24a, 24b are formed in an almost half circular region of an external surface of the lever body 22, on a side opposite to the operating piece 23, at locations that are almost symmetrical with respect to a segment p passing the tip of the operating piece 23 and a rotational center of the lever body 22. Then the thumb of the operator is placed on the operating piece 23, and the fore finger and the middle finger are placed on the operating auxiliary projections 24a, 24b, respectively, whereby the lever body 22 can be rotatively operated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a flow path switching operation lever and a water purifier using the operation lever.

  Many water purifiers used in general households have a water purification channel through which water introduced from a water pipe passes through a filter, a straight channel through which the introduced water is discharged without passing through the filter, and a net-like water spray hole. The passing shower channel or the like can be appropriately selected and switched according to the user's preference or the like.

Such a water purifier generally has a rotary flow path switching valve that can selectively switch each of the flow paths according to the rotational position, and the switching valve is rotated by a flow path switching lever. It is like that. The operation lever for switching the flow path is an operation piece (lever piece) that is attached to the rotation axis of the flow path switching valve so that the hemispherical lever body can be rotated integrally with a screw or the like and extends radially outward from the lever body. The user puts his / her finger on the channel to switch the flow path (see, for example, Patent Document 1).
JP 11-114324 A

  The operation lever for switching channels used in the above water purifier is mainly operated by a user with a fingertip on an operation piece extending from the lever body. It tends to concentrate on the operation piece in an unbalanced manner (around the rotation axis of the lever cylinder), and the operation force tends to cause unnecessary stress to act on each part. In particular, in a faucet-directly connected water purifier, the water purifier main body is coupled in a suspended form at the lower end of the faucet. There is concern about causing damage.

  In addition, the flow path switching operation lever may be switched by placing the tip of the thumb on the tip of the operation piece and wrapping the lever body with another finger. If it is wet with water or detergent, it will be difficult for the finger placed on the lever body side to perform a reliable rotation operation.

  Therefore, the present invention is for a flow path switching that can prevent the generation of unnecessary stress and improve the operability by allowing the operating force to be applied in a balanced and reliable manner around the rotation axis of the lever barrel. An operation lever and a water purifier using the operation lever are provided.

  As a means for solving the above-mentioned problems, the invention according to claim 1 is a lever body coupled to a rotary flow path switching valve so as to be integrally rotatable, and capable of rotating within a predetermined angle range. An operation piece extending radially outward from the lever body, and a flow path switching operation lever for operating the flow path switching valve by turning the lever body by placing a finger on the operation piece. Of the outer peripheral surface of the lever barrel, in a substantially semicircular region on the opposite side to the operation piece, two positions that are substantially symmetrical with respect to a line segment passing through the distal end of the operation piece and the rotation center of the lever barrel. An operation assisting protrusion was provided.

  Thus, the flow path switching operation lever can be operated to rotate the lever body with the thumb on the operation piece and the index finger and the middle finger or another finger on the two operation auxiliary projections. At this time, the fingers other than the thumb attached to the lever body are securely locked to the two operation assisting protrusions, and the operation force applied by the user's finger is applied almost evenly with good balance around the rotation axis of the lever body. . That is, when the operation piece is rotated upward from the front side, the operation assist projection on the upper rear side of the lever barrel is pushed, and the operation assist projection on the lower lower portion is pulled forward. On the contrary, when the operation piece is rotated from the upper side to the near side, the operation assist protrusion on the back upper part of the lever body is pulled to the near side, and the operation assist protrusion on the lower back side is pulled. The operating force can be transmitted to the lever body by pushing up.

In addition, as described in claim 2, the operation piece is provided with a depression on a surface on an upper side when the operation piece of the tip is horizontally rotated from the vertically upper side to the near side. It is desirable.
In this case, when the operation piece is hung with the index finger and the operation piece is pulled down to the front, the belly of the index finger is hung on the indented portion to prevent the finger from slipping.

  As described in claim 3, the flow path switching operation lever includes a purified water flow path through which the introduced water passes through the filter, a raw water flow path through which the introduced water is discharged without passing through the filter, The present invention can be applied to a water purifier comprising a rotary flow path switching valve for switching a path, and a flow path switching operation lever coupled to the flow path switching valve so as to be integrally rotatable. When the water purifier main body is applied to the water purifier directly connected to the faucet that is the supply source of the introduced water as described in claim 4, unnecessary stress acts on the joint between the water purifier main body and the faucet. It becomes possible to prevent effectively.

  According to this invention, it is possible to turn the lever barrel in a well-balanced manner by placing a thumb on the operation piece and hanging an index finger and a middle finger or another finger on the two operation assisting protrusions on the lever barrel. It is possible to prevent the generation of unnecessary stress during the rotation operation of the lever body and to realize a reliable operation that hardly causes the user's finger to slip.

  In addition, as described in claim 2, when the operation piece is further formed with a depression, the operation piece is placed on the index finger and the operation piece is pulled down toward the user. Sliding of the index finger, which is thin and difficult to input load, can be reliably prevented by the depression.

  Further, the flow path switching operation lever can be applied to a water purifier as described in claims 3 and 4, and in particular, is applied to a faucet direct connection type water purifier as described in claim 4. In this case, unnecessary stress is unlikely to act on the joint between the water purifier main body and the faucet, so that water leakage and breakage at this joint can be effectively prevented.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIGS. 1-3 shows the general view of the water purifier 2 which employ | adopted the flow-path switching operation lever 1 concerning this invention, and FIGS. 4-6 shows the cross section of the principal part of this water purifier 2. FIG. Is. This water purifier 2 is of a so-called faucet direct connection type mainly used for home use and the like, and as shown in FIG. 2, the inlet 3 of the water purifier 2 is the tip of the faucet 4 which is the supply source of the introduced water. Are fastened to each other via a connecting screw 5.

  As shown in FIGS. 1 to 6, the water purifier 2 has a flow path unit 9 having three flow paths a, b, and c that can be selectively switched in a casing 8 composed of an upper case 6 and a lower case 7 (see FIG. 4). ) Is housed. The flow path unit 9 is provided with a rotary flow path switching valve 11 at a position directly below the introduction port 3 connected to the faucet 4 via the packing 10, and the flow path unit 9 depends on the rotational position of the flow path switching valve 11. Thus, any one of the three flow paths a, b, and c is selectively connected to the introduction port 3.

  The flow channel a is a straight flow channel that supplies the introduced water straight to the first discharge port 12 directly below the introduction port 3 with the flow channel switching valve 11 interposed therebetween, and the flow channel b is the first discharge port 12. It is a shower channel that supplies introduced water to the second discharge port 13 located on the outer peripheral side. The second discharge port 13 is provided with a sprinkling hole 14 (see FIG. 12) so that the introduced water is sprinkled and discharged downward. The remaining flow path c is a purified water flow path that supplies the introduced water to the third discharge port 16 via the purified water filter 15 on the back side of the flow path switching valve 11. The third discharge port 16 is located on the front left side of the second discharge port 13. In the case of this embodiment, the straight channel a and the shower channel b constitute a raw water channel that is discharged without passing through the filter 15.

  The purified water channel c is formed by fitting and connecting a filter housing container 19 to the pipes 18a and 18b on the valve body 17 side that houses the channel switching valve 11, and the cartridge of the filter 15 can be attached to and detached from the filter housing container 19. Is loaded. One end of the filter container 19 protrudes to the outside of the casing 8, and a cap 20 for filter replacement is screwed to the protruding end.

  As shown in FIGS. 4 and 5, the flow path switching valve 11 has a pivot shaft 11a protruding from the end of the valve body 17, and a flow path switching lever 1 (hereinafter referred to as “operation”) on the pivot shaft 11a. Lever 1 ") is attached to be integrally rotatable. The flow path switching valve 11 is operated to rotate within a set angle range through the operation lever 1 and can be stopped at a flow path switching position set at intervals of approximately 30 °. These three flow path switching positions correspond to the above-described three flow paths (straight flow path a, shower flow path b, and purified water flow path c), and an arbitrary flow path can be selected by switching operation of these positions. It has become. A click mechanism 21 is provided between the operation lever 1 and the valve body 17 so as to be able to stop at three flow path switching positions with a sense of moderation.

  The operation lever 1 has a base end side coupled to the rotary shaft 11a of the flow path switching valve 11 and a tip end side formed in a hemispherical shape, and extends radially outward from the outer peripheral surface of the lever barrel 22 on the front end side. And an operation piece 23 to be taken out. As shown in FIGS. 1 to 3, the operation piece 23 is formed in a flat bar shape whose tip side bulges out in a substantially circular shape, and the lever barrel 22 is rotated by placing a thumb or an index finger on the tip. To get. In the case of this embodiment, the purified water flow path c is selected with the operation piece 23 standing substantially vertically upward, and the straight flow path a is selected when the operation piece 23 is operated almost horizontally to the front side. The shower channel b is selected when operated at an almost intermediate position.

  Further, in a substantially semicircular region opposite to the operation piece 23 on the outer peripheral surface of the lever body 22, with respect to a line segment p (see FIG. 1) passing through the distal end portion of the operation piece 23 and the rotation center of the lever body 22. Operation assisting protrusions 24a and 24b are formed at two substantially symmetrical positions. In this embodiment, the operation piece 23 and the two operation assisting protrusions 24 a and 24 b are disposed at substantially equal intervals in the circumferential direction of the lever body 22. Each of the operation assisting protrusions 24 a and 24 b is formed in a plate shape having an arcuate outer shape, and is formed substantially along the rotation axis direction of the lever body 22.

  The operation piece 23 has a sufficiently long extension length with respect to the protruding height of the operation auxiliary protrusions 24a and 24b, and the upper surface side of the substantially circular portion at the tip (the operation piece 23 is rotated in the horizontal direction). On the side (sometimes on the upper side), there is formed a recess 25 on which the fingertip can be hung.

  Further, as shown in FIGS. 7 and 8, a cylindrical wall 26 is provided on the base side of the lever body 22, and the cylindrical wall 26 extends to the upper case 6 and the lower case 7 and has an arcuate cover wall 27. , 28 are rotatably held. On the outer peripheral surface of the cylindrical wall 26, notation of discharge states such as “raw water”, “shower”, “fresh water” and the like are made along the circumferential direction, and further on the proximal end side of the notation portion 29, A guide groove 30 is formed along the direction. As shown in FIG. 9, the guide groove 30 is bisected in the circumferential direction by a pair of stopper walls 31a and 31b.

  On the other hand, a pair of parallel guide protrusions 32 a and 32 b are provided on the inner peripheral surfaces of the cover walls 27 and 28 of the upper case 6 and the lower case 7, respectively, and these guide protrusions 32 a and 32 b serve as guides for the lever body 22. The outer wall 30a of the groove 30 is held. At this time, one guide protrusion 32 b of each case 6, 7 is inserted into the guide groove 30, and the rotation of the lever body 22 is restricted within a range where it abuts against the stopper walls 31 a, 31 b in the guide groove 30. ing. Therefore, when the upper case 6 and the lower case 7 are coupled by screws, the operation lever 1 is prevented from coming off and the rotation range of the operation lever 1 is restricted to the set angle range. In the structure of this embodiment, these functions can be realized without increasing the number of parts.

  Further, a display window 33 is provided on the cover wall 27 on the upper case 6 side, and currently selected from the characters “raw water”, “shower”, “Shimizu” and the like written on the cylindrical wall 26 of the lever body 22. Those corresponding to the discharged state are exposed to the outside through the display window 33.

  By the way, the casing 8 is roughly divided by function, from a rectangular parallelepiped body housing block 34 for housing the valve body 17 and a bottomed cylindrical container housing block 35 for housing the filter housing container 19 as shown in FIG. Although an opening 36 is formed from a part of the upper surface of the body housing block 34 of the upper case 6 to the upper curved surface of the container housing block 35, the decorative cover is removable. 37. The decorative cover 37 is provided with a locking claw 38 that is engaged with a corresponding engagement hole (not shown) of the upper case 6. The decorative cover 37 is prepared by changing the coloring or the written characters on the surface, and appropriately selecting and mounting the one according to the shipping needs. Further, as shown in FIG. 3, a screw hole 60 into which a screw for connecting the upper case 6 and the lower case 7 is screwed is provided in a portion covered with the decorative cover 37 on the upper case 6. Accordingly, a screw (not shown) for connecting the upper case 6 and the lower case 7 is covered with the decorative cover 37 at the time of normal use of the water purifier 2 and is not visible from the outside. With this structure, the water purifier 2 is improved in appearance quality and prevented from depositing dust or the like on the screw stopper.

  Further, the upper case 6 is provided with a first beam 39 extending in the axial direction of the container housing block 35 across the opening 36, and a rectangular locking hole 40 is formed at a substantially central portion of the first beam 39. Is formed. In addition, a second beam 41 extending from the body housing block 34 side is connected to the central portion of the first beam 39. On the other hand, a rectangular projection 42 is formed on the top surface of the top of the filter container 19 on the flow path unit 9 side, as shown in FIG. 10, and this projection 42 is a locking hole of the first beam 39. 40 to be fitted. Therefore, the filter housing container 19 is rigidly supported on the body housing block 34 side by the first beam 39 and the second beam 41 through the fitting portion formed by the protrusion 42 and the locking hole 40. The support of the filter storage container 19 through the beams 39 and 41 is for resisting that the filter storage container 19 is pressed in the direction away from the valve body 17 by the internal pressure of the introduced water. The container 19 is prevented from being displaced. As a result, it is possible to eliminate the problem that the filter housing container 19 is pressed against the upper case 6 and the lower case 7 to cause the deformation of the cases 6 and 7 and the opening of the mating surfaces. Further, in this embodiment, a locking hole 40 is formed in the first beam 39 straddling the opening 36, and the protrusion 42 on the filter container 19 side is fitted into the locking hole 40. The fitting operation of the protrusion 42 and the locking hole 40 can be easily performed while confirming the position of the protrusion 42 from the upper side through the opening 36 and the locking hole 40.

  Furthermore, in this water purifier 2, as shown in FIG. 11, a locking structure with a lock claw 61 and a locking groove 62 is provided between the upper case 6 and the lower case 7. Both cases 6 and 7 are temporarily fixed by this locking structure. Further, a misalignment prevention structure as shown in FIGS. 11 and 12 is provided on end surfaces of the upper case 6 and the lower case 7 that are attached to each other. This misalignment prevention structure includes a thin locking wall 63 formed along the inner edge of the lower case 7, a step wall 64 formed along the inner edge of the upper case 6, and the step wall 64. It is comprised by the support protrusion and 65 which protruded by the inner surface side of the upper case 6 so that a character-shaped cross section might be formed.

  According to this misalignment preventing structure, while the upper case 6 and the lower case 7 are assembled, the end faces of both can be easily and reliably guided to the proper positions while being assembled. After completion of attachment, it is possible to reliably prevent backlash between the cases 6 and 7. In particular, in this embodiment, since this misalignment prevention structure is employed at the edge of the opening 36 of the upper case 6 whose rigidity is lower than that of other parts, the deformation of the casing 8 and the mouth of the mating part are adopted. Opening can be effectively prevented.

  In the case of this embodiment, the shower channel b is devised as shown in FIGS. That is, the shower channel b includes a conduction hole 43 that conducts downward from the valve body 17, a water spray surface 44 that is annularly provided on the outer peripheral side of the first discharge port 12 and has a plurality of water spray holes 14, and the water spray surface 44. A guide protrusion 45 projecting at a position directly below the upper conduction hole 43, and the introduced water discharged downward from the conduction hole 43 can be smoothly guided onto the water spray surface 44 through the guide protrusion 45. ing. In other words, when there is no guide protrusion 45, the introduced water that has been vigorously discharged from the conduction hole 43 rebounds directly on the water spray surface 44, and turbulence is generated there. In this embodiment, the guide protrusion 45 The smooth guide action by 45 can surely prevent the occurrence of this turbulent flow, and a stable shower flow can be obtained at all times.

  In the water purifier 2 configured as described above, for example, the switching operation of the flow path by the operation lever 1 is performed as follows.

  First, as shown in FIG. 1, the basic operation is to place a thumb on the operation piece 23 and to place an index finger and a middle finger on the two operation assisting protrusions 24a and 24b on the lever body 22, respectively. Rotate. At this time, if the operation piece 23 is operated to rotate upward from the near side, the operation assisting protrusion 24a on the upper back side of the lever body 22 is pushed with the index finger, and the operation assisting protrusion 24b on the lower rear side is pushed with the middle finger. If the operation load is input so as to be pulled toward the front side, and the operation piece 23 is rotated from the upper side toward the front side, the operation assisting protrusion 24b at the lower rear side is pushed up with the middle finger, and the rear side An operation load is input by pulling the upper operation auxiliary protrusion 24a toward the front side with the index finger.

Therefore, when the operation lever 1 is rotated as described above, the operation load is input in a balanced manner from three points around the rotation axis of the lever body 22, and unnecessary stress is applied to each part of the water purifier 2. No longer works. For this reason, since the unnecessary load accompanying operation of the operation lever 1 is not input also to the coupling | bond part of the water purifier 2 and the faucet 4, generation | occurrence | production of the water leak, breakage, etc. in a coupling | bond part can be prevented beforehand.
When the operation lever 1 is gripped as described above, the auxiliary fingers (in this example, the index finger and the middle finger) are engaged with the operation auxiliary protrusions 24a and 24b arranged at symmetrical positions, respectively. Therefore, the rotation direction of the operation lever 1 can be easily and continuously switched without re-engaging the auxiliary finger.
Furthermore, in this operation lever 1, since the fingers other than the thumb to be hung on the operation piece 23 can be engaged with the operation assisting protrusions 24a and 24b and the lever body 22 can be rotated, the user's hand can use water or detergent. Even when wet, it is difficult to slip and can always be operated reliably.

  As a speed change operation, as shown in FIG. 15, the user may place an index finger on the upper surface of the operation piece 23, place the thumb on the casing 8, and rotate the operation lever 1 with one index finger. In this case, since the belly of the index finger placed on the top surface on the distal end side of the operation piece 23 is hooked in the recess 25 of the operation piece 23, even if the index finger is thin and difficult to operate stably compared to the thumb, The lever 1 can be reliably rotated.

  Further, since the operation lever 1 is provided with the two operation auxiliary protrusions 24a and 24b on the outer peripheral side of the lever body 22, the lever body 22 can be rotated by various combinations of fingers. For this reason, the operation lever 1 can be easily operated even by a user with a finger failure, for example.

  In addition, this invention is not limited to the said embodiment, A various design change is possible in the range which does not deviate from the summary. For example, in the above-described embodiment, one of the three channels of the straight channel a, the shower channel b, and the purified water channel c is selected by the channel switching valve 11, but the channel switching valve 11 is selected. May select one of two channels or four or more channels. In addition to the operation assisting protrusions 24a and 24b, another assisting protrusion can be provided on the outer peripheral surface of the lever body 22.

  Hereinafter, other inventions that can be grasped from the above-mentioned embodiment will be listed together with actions and effects.

(A) A purified water flow path through which the introduced water passes through the filter, a shower flow path through which the introduced water is discharged without passing through the filter, and a flow path switching valve that switches between these flow paths. In the water purifier, the guide protrusion protrudes from the upper surface of the water spray surface directly below the conduction hole that conducts to the flow path switching valve, and the introduced water discharged from the conduction hole, A water purifier characterized by being guided to a watering surface through a guide projection.
(Action / Effect)
In the case of the present invention, when the introduced water is discharged through the conduction hole by the switching operation of the flow path switching valve, the introduced water is guided by the guide protrusion and smoothly guided to the water spray surface. For this reason, it is possible to eliminate the inconvenience that the introduced water discharged from the conduction hole rebounds vigorously on the water spray surface to generate turbulent flow. Therefore, according to the present invention, a stable shower flow can always be obtained.

(B) a purified water flow path through which the introduced water passes through the filter, a raw water flow path through which the introduced water is discharged without passing through the filter, a rotary flow path switching valve that switches between these flow paths, A water purifier comprising a casing that covers the purified water flow path and the raw water flow path and a flow path switching valve, and a flow path switching operation lever that is coupled to the flow path switching valve so as to be integrally rotatable. Providing a cover wall that covers the cylindrical wall on the base side of the operation lever for switching the flow path, and holding the cylindrical wall rotatably in a state in which the axial displacement of the cylindrical wall is restricted by the cover wall. Features a water purifier.
(Action / Effect)
In the case of the present invention, the flow path switching operation lever can be rotatably held by the cover wall provided in the casing, and the flow path switching operation lever can be prevented from coming off. For this reason, it is not necessary to fix the flow path switching operation lever to the rotating shaft of the flow path switching valve with a screw or the like, and accordingly, it is possible to reduce the number of parts and thereby reduce the manufacturing cost. .

(C) a purified water passage through which the introduced water passes through the filter, a raw water passage through which the introduced water is discharged without passing through the filter, a rotary flow passage switching valve for switching these passages, A water purifier comprising a casing that covers the purified water flow path and the raw water flow path and a flow path switching valve, and a flow path switching operation lever that is coupled to the flow path switching valve so as to be integrally rotatable. A cover wall that covers the cylindrical wall on the base side of the flow path switching operation lever is provided, and a notation portion that indicates the flow path is provided on the outer peripheral wall of the cylindrical wall, and the currently selected flow path on the cover wall A water purifier characterized by forming a display window that exposes only the notation of the mark.
(Action / Effect)
In the case of the present invention, only the notation of the currently selected channel is exposed to the outside through the display window, and the notation of the unselected channel is hidden by the cover wall. It can be recognized without error.

(D) A purified water passage through which the introduced water passes through the filter, a raw water passage through which the introduced water is discharged without passing through the filter, a passage switching valve for switching between these passages, and the purified water passage And a casing that covers the periphery of the raw water flow path and the flow path switching valve, an opening is formed in the upper surface of the casing, and a decorative cover is detachably attached to cover the front surface of the opening. A water purifier characterized by
(Action / Effect)
In the case of this invention, it is possible to flexibly respond to shipping needs and the like by preparing a decorative cover with different coloring and surface description, and selecting and mounting the decorative cover as appropriate.

(E) Houses the purified water passage through which the introduced water passes through the filter, the raw water passage through which the introduced water is discharged without passing through the filter, the passage switching valve for switching these passages, and the filter In a water purifier comprising a filter storage container into which high-pressure introduction water is introduced, and a casing that covers the purified water flow path, the raw water flow path, the flow path switching valve, and the filter storage container,
The water purifier characterized by providing the uneven | corrugated fitting structure engaged with a filter storage container in the wall along the separation direction of the said filter storage container and a flow-path switching valve among the said casings.
(Action / Effect)
In the case of this invention, since the filter storage container is locked to the wall along the separation direction of the filter storage container and the flow path switching valve of the casing, the displacement of the filter storage container is reliably regulated. Therefore, it is possible to eliminate the problem that the filter container is pressed against the casing by the water pressure of the introduced water and thereby the casing is deformed.

The perspective view which shows the operation state of the water purifier of one Embodiment of this invention. The perspective view of the water purifier which shows the same embodiment. The top view of the water purifier which shows the same embodiment. Sectional drawing corresponding to the AA cross section of FIG. 2 which shows the same embodiment. Sectional drawing corresponding to the BB cross section of FIG. 3 which shows the same embodiment. Sectional drawing corresponding to CC cross section of FIG. 3 which shows the same embodiment. Sectional drawing which expanded a part of FIG. 5 which shows the same embodiment. The disassembled perspective view of the water purifier which shows the same embodiment. Sectional drawing corresponding to the DD cross section of FIG. 7 which shows the same embodiment. The disassembled sectional view of the water purifier which shows the same embodiment. The disassembled perspective view of the water purifier which shows the same embodiment. FF sectional drawing of FIG. 11 which shows the same embodiment. Sectional drawing which expanded a part of FIG. 5 which shows the same embodiment. The E arrow line view of FIG. 13 which shows the same embodiment. The perspective view which shows the operation state of the water purifier of the embodiment.

Explanation of symbols

1 ... Control lever (switch control lever)
DESCRIPTION OF SYMBOLS 2 ... Water purifier 11 ... Flow path switching valve 22 ... Lever body 23 ... Operation piece 24a, 24b ... Operation assistance protrusion 25 ... Depression part a ... Straight flow path (raw water flow path)
b ... Shower channel (raw water channel)
c ... Purified water flow path p ... Line segment

Claims (4)

A lever barrel that is coupled to the rotary flow path switching valve so as to be integrally rotatable and can rotate within a predetermined angular range, and an operation piece that extends radially outward from the lever barrel,
In the flow path switching operation lever that operates the flow path switching valve by putting a finger on this operation piece and rotating the lever body,
Two positions on the outer circumferential surface of the lever barrel that are in a substantially semicircular region opposite to the operation piece and are substantially symmetrical with respect to a line segment that passes through the tip of the operation piece and the rotation center of the lever barrel. And a flow path switching operation lever characterized in that an operation assisting projection is provided.   The recessed portion is provided on a surface on an upper side when the operation piece is horizontally rotated from the vertically upper side to the near side among the front end portions of the operation piece. Operation lever for switching the flow path.   A purified water flow path through which the introduced water passes through the filter, a raw water flow path through which the introduced water is discharged without passing through the filter, a rotary flow path switching valve that switches between these flow paths, and this flow path switching A water purifier comprising a flow path switching operation lever coupled to a valve so as to be integrally rotatable, wherein the flow path switching operation lever according to claim 1 or 2 is used. The water purifier according to claim 3, wherein the water purifier main body is directly connected to a faucet that is a supply source of the introduced water.

Images