JPH11182712A - Sliding contact valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding contact valve that can miniaturize a movable valve element, simplify the structure of the movable valve element and ensure the engagement between the movable valve element and an operating member. SOLUTION: This sliding contact valve has a fixed valve element 50 and a movable valve element 60 brought into sliding contact with each other, and the movable valve element 60 is moved in relation to the fixed valve element 50 to adjust the communication degree of passages 52, 61, and the like of both valve elements 50, 60 opened to the sliding contact faces 65 and the like. A second opening part E to which the passage 61 or the like of the movable valve element 60 is opened is provided at a part other than the sliding contact face 65 of the movable valve element 60, and an operating member 70 for operating the movement of the movable valve element 60 is provided with an engaging part 74 to be engaged with the second opening part E so that the movable valve element 60 is moved integrally with the operating member 70 by the engagement between the engaging part 74 and the second opening part E.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding valve, and more particularly, to a sliding valve suitably used for various faucets such as a hot and cold mixing faucet.

[0002]

2. Description of the Related Art In a faucet provided with a sliding contact valve, when a rotating operation or a tilting operation (swinging operation) is performed on an operating member, a movable valve body is rotated on a fixed valve body. There is an apparatus which adjusts the amount of discharged water, switches the flow path, adjusts the mixing of hot and cold water, etc. by moving forward and backward. In such a sliding valve, in order to transmit the driving force applied to the operation member to the movable valve body, the operation member and the movable valve body are generally engaged. The engagement is performed by an engagement portion of the operation member (a projection or a recess for engagement, etc.) and an engagement-dedicated portion (a recess for engagement) provided on the back or side surface of the movable valve body. And convex portions).

[0003]

However, it is difficult to apply this engagement method to a small (thin-wall type or the like) movable valve element. That is, similar to a large (thick type) movable valve body, it has a flow path having a sufficient water flow capacity, for example, a flow path having a sufficient opening area, even though it is a small movable valve body. is necessary. If such a flow path is opened on the back or side surface of the small movable valve body, the vacant area of these surfaces is reduced, and it becomes difficult to separately provide a fully functioning engaged portion. Further, when a seal member such as a packing is disposed on the entire periphery of the back surface or side surface, the empty area becomes particularly narrow, and it may be substantially impossible to provide a separate engaged portion. Furthermore, if the engaged portion is forcibly provided in this narrow free space, a cause of poor water stopping may be created.

On the other hand, even when priority is given to providing the engaged portion on a small movable valve element, the area for forming the flow path of this valve element is narrowed, so that the degree of freedom in forming the flow path is low. There is a high possibility that the flow path with sufficient water flow capacity cannot be formed. Therefore, it is difficult to provide a small-sized movable valve element with a flow path having a sufficient water-flowing capacity and a fully-engaged engaged portion that is exclusively used for engagement. For this reason,
In the actual situation, in the movable valve body having the above-mentioned engaged portion, it is necessary to make the wall thickness sufficiently large to secure a sufficient empty area on the back surface and the side surface. From such circumstances,
There is a demand for a sliding valve that can reliably engage the operating member with the movable valve while reducing the size of the movable valve.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned point of view, and it is possible to securely engage a movable valve body with an operation member while reducing the size of the movable valve body. An object of the present invention is to provide a sliding contact valve capable of simplifying the structure.

[0006]

According to a first aspect of the present invention, a sliding valve has a fixed valve body and a movable valve body that are slidably contacted with each other, and the sliding valve is moved by moving the movable valve body with respect to the fixed valve body. In the sliding contact valve for adjusting the degree of communication between the respective flow paths of the fixed valve body and the movable valve body that open to the contact surface, a flow path of the movable valve body opens at a portion other than the sliding contact surface of the movable valve body. 2, an operating member for moving and operating the movable valve body is provided with an engaging portion for engaging with the second opening, and the operating member is operated by engaging the engaging portion with the second opening. The movable valve body is moved integrally with the member.

In the present invention, the movable valve element has a sliding surface and a flow path which is opened at a portion other than the sliding surface (back surface, side surface, etc.). Then, the movable valve body and the operating member are engaged with each other by using the opening other than the sliding contact surface. That is, since the flow path is also used as the engaged portion, there is no need to separately provide an engaged portion exclusively for engagement in the movable valve element. Therefore, a limited area of the small (thin) movable valve element can be efficiently used for forming the flow path. For this reason, the size of the movable valve body can be positively reduced. In addition, the structure of the movable valve body is simplified and the sealing performance is improved because there is no need to separately provide an engaged portion exclusively for engagement. The present invention is particularly significant when the movable valve body is small, but also when the movable valve body is large (thick), the structure can be simplified and the sealing performance can be improved. It has great significance.

Further, as the "movement" mode of the movable valve element of the present invention, in addition to (1) a mode in which only the rotation is performed and (2) a mode in which only the retraction is performed, (3) the reciprocation is performed together with the rotation. Examples can be given. Specifically, a sliding contact valve which is provided in a single faucet or the like and adjusts the amount of water discharged by moving the movable valve body forward or backward can be exemplified. Further, a sliding contact valve which is provided in a single-lever type hot / water mixing faucet and adjusts hot / water mixing (temperature adjustment) and water discharge amount, or switches a flow path in addition to these, by moving a movable valve body forward and backward and rotating. Etc. can be exemplified. Further, sliding contact valves, etc., which are provided in various types of faucets and adjust the water discharge amount and switch the flow path by rotating the movable valve body, can be exemplified.

[0009] The present sliding contact valve widely includes a valve that moves a movable valve body with respect to a fixed valve body to adjust the degree of communication between flow paths of both valve bodies. Therefore, it is determined whether or not the sliding contact valve has a function of interrupting the communication, that is, whether or not the water flows (water discharge).
-It does not matter whether or not a water stop function is provided. For example, when another valve (not limited to the sliding contact valve) having a function of selecting water flow (water discharge) and water stoppage is disposed on the upstream side of the sliding contact valve and the like, the sliding contact valve is disposed. It is also possible to perform only the mixing adjustment of hot and cold water.

Further, the "operating member" of the present invention refers to the operating shaft or the like when the movable valve body is directly engaged with an operating shaft (spindle or the like), an operating rod, or the like. When the operation shaft or the like is indirectly engaged via an inclusion (movable block or the like) or the like, it refers to a combination of the operation shaft or the like and the inclusion.

According to a second aspect of the present invention, in the sliding contact valve according to the first aspect, an auxiliary engaging portion is provided on the operating member, and the auxiliary engaging portion is provided in a region other than the second opening of the movable valve body. It is characterized in that an auxiliary engaged portion to be engaged is provided. In the present invention, auxiliary engagement is performed between the auxiliary engagement portion and the auxiliary engaged portion, and the reliability of the engagement between the operation member and the movable valve body is improved. It should be noted that this “assisted engaged portion” is different from the “engaged dedicated engaged portion” described above as a conventional technique, and is merely an auxiliary one. Therefore, when the vacant area on the back and side surfaces of the movable valve element is narrow, the size and shape can be easily reduced to such an area. For this reason, even if the "auxiliary engaged portion" is added to the movable valve body, it does not hinder miniaturization of the valve body.

[0012]

Embodiments of the present invention will be described below. In the present embodiment, a specific example of the switching valve cartridge B in which the sliding contact valve is incorporated will be described. The switching valve cartridge B is provided with a predetermined hot and cold mixing faucet (not shown).
As shown in FIG. 1, a rear housing 30, a front housing 40, and a fixed valve body 50 are provided.
, A movable valve body 60, and an operation member 70.

The rear housing 30 is an integrally molded article made of resin or the like, and has a substantially cylindrical outer shape. However, a locking arm 31 with a hole protrudes from two places at the front end. In the front end portion of the rear housing 30, a substantially rectangular cutout portion 32 is provided at a position located on the base side of each locking arm 31.

Further, a curan side outlet hole 33 is provided in a peripheral surface of an intermediate portion of the rear housing 30. A mounting groove for mounting the O-ring h is provided in a peripheral surface portion located in front of the outlet hole 33. Further, a front opening of the rear housing 30 is a valve body mounting portion 34 which is recessed in a step shape. The mounting portion 34 has a mounting groove s for fitting a specially shaped O-ring k having a T-shaped portion added to the inner peripheral side. The mounting portion 34 has an opening d (a mere opening obtained by removing waste), an intake passage hole (a substantially fan-shaped plane with a central angle of about 90 degrees) q, and an outflow Through hole (center angle is 9
(A substantially fan-shaped plane around 0 degrees) r.

As shown in FIGS. 1 and 2, a partition wall 3 is provided between the inside of the rear housing 30 and the front end.
The partition wall 35 divides an intake channel v and an outflow channel w. The intake flow channel v has the intake 36 at the rear end of the rear housing 30 as an entrance, the intake passage hole q as an exit, and the flow channel w for outflow.
The outflow passage hole r serves as an inlet, and the callan-side outlet hole 33 serves as an outlet.

The front housing 40 is also an integrally molded product made of resin or the like, and has a substantially cylindrical shape with a bottom as shown in FIG. Further, a shaft insertion portion 43 penetrating through the inside and outside of the housing 40 is raised substantially in the center of the front surface in a substantially cylindrical shape. Also, on the front end side of the peripheral surface, O
A mounting groove into which the ring m is fitted is provided. Further, at two places on the rear side of the peripheral surface of the front housing 40,
The locking arms 31 are provided with locking recesses 45 having a shape substantially inverted from the concave and convex, and a projection that can be fitted into a hole of the locking arm 31 is provided at a substantially central position of each of the concaves 45. The rear end side of each recess 45 is formed as a substantially rectangular notch 47. Further, two shower-side outlet holes 48 are provided at an intermediate portion of the peripheral surface of the front housing 40.

As shown in FIG. 1, the fixed valve body (for example, made of ceramics) 50 has a substantially disk shape and has two positioning projections 51 on the peripheral surface. The fixed valve element 50 further includes a supply channel 52 and a callan communication channel 53.
Are provided in a state where they are opened at the sliding contact surface 55 and the back surface 56 of the valve body 50. And, which of the flow paths 52, 53
Also, the central angle is a substantially fan-shaped plane with a central angle of about 90 degrees.

The movable valve body (for example, made of ceramics) 60 is formed in a thin, substantially disk shape as shown in FIG. Then, as shown in FIG. 2, a first opening D is provided on the sliding contact surface 65, and a second opening E is provided on the back surface 66.
And a first opening F on the sliding contact surface 65 and a second opening G on the side surface 67. A shower selecting flow path (a flat fan shape having a center angle of about 90) 62 is provided.

In the movable valve body 60, as shown in FIG. 3B, the peripheral edge of the back surface 66 is the contact point t of the packing n. Also, as shown in FIG. 3A, about half of the portion located inside the contact point t is the second opening E.
It has been. Also, about 1/4 of this part,
A shower selection channel 62 is formed immediately below the channel, and the thickness thereof is reduced. Therefore, the empty basin on the back surface 66 is limited to a narrow range surrounded by a dashed line x in FIG. In the empty basin on the back surface 66, a bottomed auxiliary hole (auxiliary engaged portion) 63 is provided. In addition, the side surface 67 of the movable valve body 60 is provided with the second opening G of the shower selection flow channel 62, and since the valve body 60 is of a thin type, there is no sufficient free space.

The operating member 70 is an integrally formed product made of resin or the like. As shown in FIG. 1, the operating member 70 has a substantially skirt-shaped base end portion 71 and a substantially axially protruding portion from its front end. And a shaft main body 72 provided. Of these, the proximal end 7
A pair of engaging projections (engaging portions) 73 and 74 hang down from the inclined inner wall surface in a substantially C-shape. An auxiliary projection (auxiliary engagement portion) 75 hangs from a position between the two projections 73 and 74 on the inner wall surface. Further, the inner wall surface is provided with a mounting groove 76 which surrounds these projections 73, 74, 75 in a circular shape and into which the O-ring n is fitted. An O-ring p is provided at the base of the shaft body 72.
Is provided in the mounting groove. Further, a serration groove M is provided in an intermediate portion, and a front end portion is a substantially drum-shaped handle engaging portion N.

Next, an example of the procedure for assembling the switching valve cartridge B and the like will be briefly described. First, the rear housing 3
After attaching the O-rings h and k to the rear housing 30, the fixed valve body 50 is attached to the rear housing 30. In this attachment, the lower half side of each positioning projection 51 is fitted into the corresponding notch 32, and the back surface 56 of the fixed valve body 50 is brought into water-tight contact with the front surface of the valve body mounting portion 34 via the O-ring k. It is performed together.
Thereby, the supply channel 52 communicates with the intake channel v,
The callan communication channel 53 communicates with the outflow channel w.

Subsequently, after the O-rings n and p are mounted on the operation member 70, the operation member 70 is moved to the rear surface 66 of the movable valve body 60.
Attach to In this attachment, as shown in FIG. 3A, both engagement projections 73 and 74 are inserted into both ends of the callan selecting flow path 61 (both ends in the rotation direction of the movable valve body 60). At the same time, the operation is performed while inserting the auxiliary projection 75 into the auxiliary hole 63. By this mounting, as shown in FIG. 3B, the lower surfaces of both engagement projections 73 and 74 are brought into sliding contact surfaces 65 of movable valve body 60.
Slightly up to the front position. In addition, the two side surfaces a and b of the engaging projections 73 and 74 correspond to the callan selecting flow paths 61.
The auxiliary projection 75 contacts the inner wall surface of the
When the operating member 70 is rotated, the movable valve body 60 is also integrally rotated.

Next, an O-ring m is attached to the front housing 40.
After mounting, the operating member 70 and the movable valve body 60 are inserted into the housing 40 from the rear end side thereof. At this time, as shown in FIG.
3, serration groove M and handle engagement portion N
Is exposed in front of the shaft insertion portion 43. Subsequently, if the front and rear housings 30 and 40 are connected, the assembly of the switching valve cartridge B is completed. This connection is performed by aligning each locking arm 31 with the corresponding locking recess 45 and locking the latter projection in the former hole. At the same time, the upper half of each positioning projection 51 of the fixed valve body 50 is fitted into the corresponding cutout 47 of the front housing 40.

After the switching valve cartridge B is mounted on the desired faucet main body 10, a switching handle is attached to the exposed portions M and N of the operating member 70, and the switching valve cartridge B is ready for use. At this time, the inlet 36 at the rear end of the rear housing 30
Is connected to a hot and cold water mixing chamber provided in the faucet main body 10. At the same time, the exit port 3 on the callan side of the rear housing 30
Numeral 3 is connected to a callan room provided in the faucet main body 10. Also, the shower-side outlet 4 of the front housing 40
8 and 48 are connected to a shower room provided in the faucet body 10.

Next, an example of use of the switching valve cartridge B will be described with reference to FIGS. In the present embodiment, the fixed valve body 50 and the movable valve body 60 having substantially the same peripheral edge dimensions are used. However, in these figures, the fixed valve body 5 and the movable valve body 60 are used for convenience of explanation.
0 is shown larger. First, FIG. 4 shows that the hot and cold water mixing faucet is in a water stop state. That is, both the selection flow paths 61 and 62 of the movable valve body 60 are in a state of being isolated from the supply flow path 52 of the fixed valve body 50.

When it is desired to discharge hot and cold water from the callan, as shown in FIG. 5, the switching handle H (disposed on the right side of the faucet main body 10) is rotated toward the user. As a result, the movable valve element 60 rotates, and the callan selecting flow path 61 communicates with both flow paths 52 and 53 of the fixed valve element 50.
The intake flow channel v and the outflow flow channel w are communicated with each other, and water can be discharged. On the other hand, when it is desired to discharge hot water from the shower head, as shown in FIG. 6, the switching handle H is rotated to the side opposite to the user. Thereby, the movable valve body 60
Rotates, and the shower selecting flow path 62 communicates with the supply flow path 52 of the fixed valve body 50, so that shower water can be discharged. Furthermore, in any case of water discharge, the flow rate is adjusted by selecting the operation amount of the handle H and adjusting the area where each of the selection flow paths 61 and 62 and the supply flow path 52 overlap.

In the switching valve cartridge B described above, the engagement between the operating member 70 and the movable valve body 60 is determined by the engagement projections 73 and 7.
4 is mainly inserted into the opening E. That is, in addition to the original function of flowing hot and cold water, one of the selection flow paths 61 of the movable valve body 60 also serves as an engaged portion. For this reason, the movable valve body 60 is of a thin type,
Large openings E and G are provided on the back surface 66 and the side surface 67, and the peripheral side of the back surface 66 is used as a sealing portion, and a vacant area (x or the like) is narrowed. It is firmly engaged with the operation member 70. Moreover, an auxiliary hole 63 provided in a slightly empty area on the back surface 66 of the valve body 60
And the auxiliary projection 75 of the operation member 70
In addition, the reliability of engagement of the movable valve body 60 is improved.

Therefore, the limited area of the thin movable valve body 60 can be effectively used for forming the flow paths 61 and 62.
In addition, the structure of the movable valve body 60 is simple because it is not necessary to separately provide an engaged portion (excluding an auxiliary member such as the auxiliary hole 63) dedicated to engagement with the movable valve body 60. And the sealing performance is improved. In the present embodiment, the operation member 70 and the movable valve body 60 are engaged with each other by using the opening E on the back surface 66 of the movable valve body 60. Can also be used.

According to the switching valve cartridge B,
The engagement projection 7 used for engagement with the movable valve body 60
Using one of 3, 74, it is also possible to prevent the occurrence of water hammer at the start and end of water discharge. Therefore, it is possible to prevent "unpleasant sound", "unpleasant vibration", etc. from occurring at the start of the water discharge of the callan, etc.
The piping (water pipe or the like) of the hot and cold mixing faucet in which the switching valve cartridge B is provided can be properly protected, and the operation feeling of the switching handle H can be improved (the feeling of being caught is reduced). Hereinafter, this point will be described in detail.

As a countermeasure for preventing the occurrence of the water hammer, as shown in FIG.
The switching valve cartridge B is provided with a concave portion Y which is continuous with the callan selecting flow channel 61, and for a short time immediately before the switching valve cartridge B is closed and immediately after the switching valve cartridge B is opened, from the supply flow channel 52 to the callan selecting flow channel 61 through the concave portion Y. It is effective to leak hot water little by little. However, when using this measure, the concave portion Y,
That is, it is necessary to form the flow restrictor Y with high precision and to sufficiently control the flow resistance thereof.

However, as a material of the valve bodies 50 and 60,
Since it is common to use ceramics and the like that are inferior in moldability and workability compared to other materials such as resin, with emphasis on wear resistance, the valve body 60 having the concave portion Y with high precision is manufactured. It is not always easy. Further, at the final stage of the manufacture of the valve body 60, a mirror surface processing such as lapping is performed on the sliding contact surface 65. However, if the processing amount varies even slightly, it is considered that the accuracy of the concave portion Y is greatly reduced. . Furthermore, since the shape of the concave portion Y that can be formed on the sliding contact surface 65 has a certain limit, if the shape of the concave portion Y is devised (complicated, etc.), the occurrence of “water hammer” can be more reliably prevented. Nevertheless, it is conceivable that the recesses Y that can be actually formed remain in a simple shape.

On the other hand, in the present switching valve cartridge B, FIG.
As shown in the figure, the engaging projection 7 separate from the valve body 60 is provided on the cut-off side edge 68 of the callan selecting flow path 61 of the movable valve body 60.
3 is inserted. Then, the flow channel depth in the vicinity of the cut-off side edge portion 68 of the callan selecting flow channel 61 is narrowed to the space between the lower surface of the engagement projection 73 and the sliding contact surface 65 of the movable valve body 60 to form the flow rate throttle portion R. doing. In addition, the "blocking side edge"
Each flow path (52) of the fixed valve element 50 and the movable valve element 60
, 61, 52, and 62) are portions 58, 59, 68, and 69 that are located on the sides that intersect at the ends when the sliding valve is closed. In other words,
When the sliding contact valve is opened, it is a portion located on the side that intersects each other as a starting end.

At this time, if the flow restrictor R is highly accurate and its flow resistance is accurate, the supply flow path 52 and the callan selection flow path 61 immediately before the end of the water discharge and for a while immediately after the start. The flow rate of hot and cold water flowing into is reduced to an appropriate amount (to the extent that it leaks little by little). At the end and start of the water discharge, the flow rate of the hot water passing through the switching valve cartridge B increases or decreases based on the narrowed flow rate. Therefore, the flow rate does not fluctuate abruptly at the time of the end or start of the water discharge, so that the occurrence of the water hammer can be reliably prevented.

The dimensional accuracy and the like of the engagement projection 73 largely affect the suitability of the performance of the flow restrictor R. The projection 73 is formed separately from the movable valve body 60, and the molding is free. Since it is manufactured using a resin having high degree of workability and processability, it is easy to increase the dimensional accuracy and the like. In addition, even if the mirror surface processing of the sliding contact surface 65 of the movable valve element 60 varies, it can be instantaneously dealt with by adjusting the dimension of the engaging projection 73 which is easy to handle.

Therefore, according to the switching valve cartridge B, it is possible to reliably prevent the occurrence of a water hammer at the start and at the end of the discharge of the curan water by using the high-precision flow restrictor R obtained at low cost and with high accuracy. . Further, since the flow restrictor R is configured by using a part of the operation member 70, the number of components does not increase while exerting such a beneficial effect. Further, the engagement projection 73 is formed separately from the movable valve body 60 and is made of a resin, and has a high degree of freedom in selecting the shape. Therefore, the shape of the projection 73 is devised (complicated, etc.). It is also easy to obtain a flow restrictor R with higher performance.

In this switching valve cartridge B, only the countermeasures against water hammer at the time of water stoppage at the callan side are taken, but the water at the time of water stoppage at the shower side or at the time of water stoppage at the callan side and shower side is taken. Hammer measures may be taken. For example, another engaging projection is provided on the operating member 70,
If this projection is engaged with the second opening G of the shower selection flow channel 62 and a flow restricting portion is formed at the cut-off side edge 69 of this flow channel 62, the water hammer at the time of the water discharge on the shower side is formed. Can be reliably prevented.

Further, a flow restricting portion can be formed in the fixed valve body 50 by using a member different from the engagement projection 73. That is, the supply channel 52 of the fixed valve body 50 in FIG.
The flow restricting portion may be formed at the cut-off side edge 58 for the curan selection flow path 61 or the cut-off side edge 59 for the shower selection flow path 62. For example, a predetermined protrusion can be raised from the valve body mounting portion 34, and this protrusion can be inserted into the supply channel 52 to form a flow restrictor. In this case, the projection can be used for positioning and fixing the fixed valve body 50.

Further, according to the switching valve cartridge B,
Since the flow restricting portions (recesses and the like) are not provided on the sliding surfaces 55 and 65 of the respective valve bodies 50 and 60 themselves, the sealing performance of these surfaces 55 and 65 is reliably ensured. Even if foreign matter adheres to the flow restrictor R, the foreign matter can be easily removed by removing the engagement projection 73 from the movable valve body 60. Moreover, most of the foreign matters are considered to adhere to the engagement projections 73, and only the projections 73 need to be removed, so that the sliding contact surface 65 of the valve body 60 is not damaged. In addition, even when foreign matter adheres to the inner walls of the selection flow paths 61 and 62 of the movable valve body 60, the sliding operation surface 65 is not damaged because the removal operation may be performed only on the inner walls.

The scope of each invention is not limited to the specific embodiments described above, and various modifications may be made within the scope of each invention. That is, the input / output direction of the hot and cold water in the sliding contact valve is not particularly limited. For example, in the switching valve cartridge B of the embodiment, the callan-side outlet hole 33 and the shower-side outlet hole 48 may be set as the input side, and the intake 35 of the rear housing 30 may be set as the output side.
Specifically, one of the outlet hole 33 and the outlet hole 48 is a source water inlet directly connected to a water supply, and the other is a purified water inlet connected to a water purifier (the other is a solar inlet connected to a solar system). May be used.)

The auxiliary engaging portion of the operating member 70 may be concave, and the auxiliary engaged portion of the movable valve body 60 may be convex.
Further, the number of the engagement projections 73 and 74 may be reduced to one.
In the present invention, the auxiliary projection 75 and the like may be omitted.

[0041]

As described above, according to the first aspect of the present invention, it is possible to securely engage the movable valve body with the operating member while reducing the size of the movable valve body and simplifying the structure. A sliding valve that can be obtained is obtained. According to the second aspect of the present invention, the reliability of engagement between the movable valve body and the operation member can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view for explaining each component of a switching valve cartridge according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing the structure of the switching valve cartridge according to the embodiment of the present invention.

3 (a) is a plan view for explaining the relationship between an engagement projection or the like and a movable valve body, and FIG. 3 (b) is a 3-3 longitudinal sectional view of FIG. 3 (a).

FIG. 4 is a schematic cross-sectional view illustrating a positional relationship between a fixed valve body, a movable valve body, and an engagement projection when the sliding contact valve is in a water stop state.

FIG. 5 is a schematic cross-sectional view illustrating a positional relationship among a fixed valve body, a movable valve body, and an engagement projection when the sliding contact valve is in a water discharge state.

FIG. 6 is a schematic cross-sectional view illustrating a positional relationship among a fixed valve body, a movable valve body, and an engagement projection when the sliding contact valve is in a shower water discharge state.

FIG. 7A is a schematic cross-sectional view of a fixed valve body, a movable valve body, and an engagement projection for explaining a function of a relief unit;
FIG. 7B is a vertical sectional view taken along a line 7-7 in FIG.

FIG. 8 is a schematic longitudinal sectional view for explaining a valve body provided with a concave portion devised by the present inventors.

[Explanation of symbols]

B: switching valve cartridge, R: flow restrictor, h, k,
m, n, p; O-ring, H; switching handle, 30; rear housing, 31; locking arm, 32; notch, 33;
Curan side exit hole, 34; valve body mounting part, s; mounting groove, d;
Opening, q, r; passage hole, 35; partition wall, 36; inlet, v; inlet channel, w; outlet channel, 40; front housing, 43; shaft insertion portion, 45; Concave portion, 47; cutout portion, 48; shower-side outlet hole, 50; fixed valve body,
51; positioning projection; 52; supply channel; 53; callan communication channel; 55; sliding contact surface;
Blocking side edge, 60; movable valve element, 61, 62; selection flow path, D, F; first opening, E, G; second opening, 6
3; auxiliary hole (auxiliary engaged portion); 65; sliding contact surface; 66; rear surface; 67; side surface; 68, 69; blocking side edge; 70; operating member; 71; base end; Part, 73, 74; engagement projection (engagement part), 75; auxiliary projection (auxiliary engagement part),
76: mounting groove, M: serration groove, N: handle engaging portion.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takahiro Shimizu 760 Beary Heights, Sekoizumi, Toinmachi, Inaba-gun, Mie Prefecture (72) Inventor Shinji Ozaki 43-12, Todorizakacho, Yokkaichi-shi, Mie Prefecture

Claims (2)

[Claims] 1. A fixed valve body and a movable valve body having a fixed valve body and a movable valve body which are slidably contacted with each other, and wherein the fixed valve body and the movable valve body are opened to a sliding contact surface by moving the movable valve body with respect to the fixed valve body. In the sliding contact valve for adjusting the degree of communication between the respective flow paths, a second opening for opening the flow path of the movable valve body is provided in a portion other than the sliding contact surface of the movable valve body, and the movable valve body is moved. Operating member to be provided with an engaging portion that engages with the second opening,
A sliding valve wherein the movable valve body is moved integrally with the operating member by engagement of the engagement portion with the second opening. 2. The operating member is provided with an auxiliary engaging portion, and an auxiliary engaged portion that engages with the auxiliary engaging portion is provided in a region other than the second opening of the movable valve body. The sliding contact valve according to claim 1, wherein