JP6861992B2 - Faucet fixture - Google Patents

Description

The present invention relates to a faucet fixture that switches the type of running water to be discharged into a plurality of types such as raw water and purified water.

As such a faucet fixture, for example, there is a technique shown in Japanese Patent Application Laid-Open No. 2004-082031 (Patent Document 1).

This faucet device can switch the type of flowing water to be discharged between purified water and raw water, and has a mechanism for displaying the type of discharged water to be displayed on a window provided on the cover. A window is formed near the tip of the cover of the faucet fixture, and the purified water and raw water displayed on the curved surface of the display body composed of a quarter cylinder are alternately displayed from this window. Is displayed.

The display body has a shaft portion formed in both directions from the side surface of the fan shape, and this shaft portion is rotatably supported by a support portion formed on the faucet body. A torsion spring is attached to one side of the shaft portion, and the display body is urged so that the display body falls toward the tip side of the faucet device while taking a reaction force against the faucet body.

This display is driven by a push button that switches the water discharge. The push button is provided to operate in a push-push manner with respect to the faucet body. The faucet body is provided with a valve mechanism for switching water discharge, and this valve mechanism is provided with a known push-push type switching mechanism. The push button is linked to the push member of the return mechanism, and the spring-loaded force of the return mechanism is used when the push button returns from the push position to the protruding position.

An inclined cam portion is provided on the ceiling of the push button, and an action portion with which the cam portion comes into contact is provided at the lower part of one display body. When the push button is in the protruding position, this inclined portion pushes up the acting portion of the display body, and "raw water" is displayed on the window portion. When the push button is pushed in, the cam portion moves to the inner part in the pressing direction, and the pushing up of the acting portion is released. As a result, the display body is rotated by the urging force of the torsion spring so as to fall to the side where the cam portion has existed until then, and the display is switched to "purified water".

When the push button returns to the protruding position, push the push button slightly. As a result, the push-push mechanism works, and the push button is pushed back by the urging force of the spring. As a result, the cam portion of the push button pushes up the acting portion of the display body again, and the display is returned to "raw water".

As described above, in the conventional faucet fixture, the urging force of the torsion spring or the spring of the switching mechanism is used when the display body is switched to any side.

Further, in the prior art, a cam portion and an action portion for rotating the display body are provided between the push button and the display body.

According to the description of Patent Document 1, as a result of these configurations, the display unit can be provided at a position away from the reciprocating push button, the configuration is simple, and the necessary parts are also the display body / spring member. -It is said that a compact and inexpensive display device can be obtained by using only a display body support member, a display window, and the like.

Japanese Unexamined Patent Publication No. 2004-082031

As described above, in the above-mentioned conventional technique, the spring force is used for the operation of the display body when the push button is operated in any direction. Therefore, if dirt such as water stains accumulates on the support portion of the display body, the operation of the display body may not be maintained smoothly, and the stationary position of the display body may become inappropriate.

Further, since the conventional faucet fixture has a rotation mechanism on the back surface side of the display body, a certain height is required for the arrangement space in order to arrange the mechanism. Therefore, even if an attempt is made to improve the visibility of the display body, there is a limit to the space for arranging various mechanisms in the head portion of the faucet fixture, and there is a limit to the enlargement of the display body.

In this way, due to problems such as reliability of the operation of the display body and problems of the size of the display body, there is still room for improvement in the structure of the display body even if the visual function of the display body is to be improved. Therefore, it is desired to provide a faucet device that can surely exhibit the water discharge switching display function while being compact as a whole.

(Characteristic composition)
The characteristic configuration of the faucet fixture according to the present invention is
A faucet body with multiple channels inside and a window on the outer wall,
An operating body provided on the faucet body and displaced between the first position and the second position to switch between the plurality of flow paths.
A display body having a shaft portion rotatably supported by the faucet body within a predetermined angle range and having a display portion that exposes a display corresponding to a switching state of the plurality of flow paths to the window portion .
The faucet body and the urging member provided in contact with the display body are provided.
The display body
When the operating body is operated from the first position to the second position, the operating force applied by the operator to the operating body is transmitted through the driving unit of the operating body, and the first acting unit.
The point is that when the operating body is returned to the first position, it is provided with a second acting portion to which a returning force from the urging member is transmitted.

(effect)
The display body changes its display by operating the operating body, but in this configuration, when the operating body is operated from the first position to the second position, the operating force applied to the operating body is transmitted through the drive unit. It is directly transmitted to the first action part of the display body. Therefore, the display body can be operated reliably. For example, even when the shaft portion of the display body is contaminated with water stains or the like and the operation of the display body is not smooth, the switching operation of the display unit is reliable.

Further, when the driving unit of the operating body directly presses the first acting unit of the display body, the switching operation of the display unit becomes agile, and a faucet device having an excellent usability can be obtained.
Further, when the operating body is returned from the second position to the first position, the returning force from the urging member provided in contact with the faucet body and the display body is directly applied to the second acting portion of the display body. Is told to. Therefore, the posture of the display body is quickly changed when the operating body returns.

(Characteristic composition)
As the faucet fixture according to the present invention, it is convenient that the shaft portion, the first acting portion, and the second acting portion are provided outside the display portion while the display portion is viewed from the front. ..

(effect)
In order to sequentially expose the display of the display unit to the window unit, it is necessary to provide a space for the display unit to move inside the faucet body. Although the size of the faucet body is limited, the display should be as large as possible to improve visibility. Therefore, by providing the mechanical parts such as the shaft part and the first acting part other than the display part in a region different from the display part in the front view of the display part, the degree of freedom in structural design is expanded.

In addition, when using a faucet fixture, water may enter through the window, but by providing the shaft, first action, and second action outside the display, the infiltrated water can enter the shaft. It becomes difficult to reach the first working part and the like. Therefore, the switching function of the display unit is maintained for a long period of time.

(Characteristic composition)
In the faucet device according to the present invention, the driving portion is a long arm portion, and when the first acting portion is pressed, the faucet portion comes into contact with the arm portion, and the arm portion has the first acting portion. It is preferable that the faucet main body is provided with a regulating portion that prevents the faucet body from bending away from the portion.

(effect)
The internal space of the faucet fixture is limited, and each mechanism provided inside is designed to be compact in consideration of the required strength. In this configuration, a long arm portion is formed on the operating body as a portion for pressing the first acting portion of the display body. When the arm portion pushes in the first acting portion, the display body rotates about the shaft portion. Therefore, the relative postures of the arm portion and the first acting portion may be sequentially changed, and the contact surface of the first acting portion may be in an inclined state. In this case, the tip of the arm rides on the contact surface, and the arm easily bends. In order to prevent this, in this configuration, a regulating portion is provided on the faucet body to regulate the pushing direction of the arm portion. As a result, it is possible to obtain a faucet device in which the switching function of the display unit is stably exhibited while the arm portion is formed thin to make the mechanical portion compact.

(Characteristic composition)
In the faucet device according to the present invention, when the driving unit pushes the first acting unit and the display unit is changed to a predetermined posture, the display body so as to prevent the return operation of the display unit. It is preferable that the third acting portion provided in the operation body and the positioning portion provided in the operating body and abutting against the third acting portion are provided.

(effect)
The drive unit and the first action unit rotate the display unit, and the positioning unit and the third action unit of the present configuration prevent the display unit from returning. Of these, the mechanism related to driving rotates the display unit to a large extent while minimizing the movement of the operating body, and the mechanism related to positioning reliably prevents the display unit from returning. Since the purpose of each mechanical unit is different in this way, for example, the distance between the shaft unit and the first action unit is set small so that the rotation angle of the display unit is large with respect to the stroke of the drive unit. However, the pressing force acting between the driving unit and the first acting unit becomes large.

On the other hand, in order to reliably prevent the display unit from returning, for example, the distance between the shaft portion and the third acting portion may be increased to reduce the contact force between the positioning portion and the third acting portion. Further, if the radius of gyration from the shaft portion to the third acting portion is increased, the fixed posture of the display portion hardly changes even if either the positioning portion or the third acting portion is worn to some extent. Therefore, the position of the display unit with respect to the window unit is always constant, and the display function is surely exhibited.

As described above, by separately providing the mechanism for driving the display unit and the mechanism for positioning the display unit, the pushing function and the positioning function of the display unit can be reliably exerted.

(Characteristic composition)
The faucet device according to the present invention can be configured such that the driving portion and the first acting portion are separated from each other in a state where the positioning portion and the third acting portion are in contact with each other.

(effect)
By separately providing the drive-related mechanism and the positioning-related mechanism, each function can be more reliably exhibited. For example, by reducing the contact force between the positioning portion and the third acting portion, the wear between the members is reduced, and the display posture of the display unit becomes stable for a long period of time. However, in this configuration, further, when the positioning unit is functioning, the driving unit is separated from the first acting unit and does not function, thereby preventing the driving unit from interfering with the posture of the display body. By doing so, the position of the display unit can be fixed more accurately.

(Characteristic composition)
In the display body, the faucet device according to the present invention forms a long distance between the axis of the shaft and the third acting portion with respect to the distance between the axis of the shaft and the first acting portion. It is preferable to keep it.

(effect)
By reducing the distance between the axis of the shaft portion and the first acting portion in this way, it is possible to secure a large rotational movement length of the display body with respect to the stroke of the operating body, and the display unit has a large display. The body can be driven.

On the other hand, if the mechanism of the rotating arm is short, the contact force between the drive unit and the first acting unit is increased, and the member may be worn earlier and the display position of the display unit may become unstable.

Therefore, in this configuration, the distance between the third acting portion and the axial center of the shaft portion is set larger than the distance between the first acting portion and the axial center of the shaft portion. As a result, the moment arm of the display body becomes long and the contact force with the positioning portion decreases. As a result, the wear of the portion is reduced and the position fixing function of the display body is stabilized.

(Characteristic composition)
In the faucet device according to the present invention, the position-determining surface of the positioning portion that abuts on the third acting portion is moved when the operating body is operated from the first position to the second position. It is convenient to form it parallel to the locus.

(effect)
Various configurations of the operating body that reciprocates between the first position and the second position include, for example, a configuration that rotates around a shaft portion and a configuration that pushes and pulls along a predetermined drive rail. Is assumed. Among these, in the specific configuration, the drive unit may rattle in the operation direction, or the operation body may be operated in the opposite direction when the operation of the operating body is reversed, such as a push-push type return mechanism. ..
Therefore, in this configuration, the position-determining surface of the positioning portion is provided parallel to the movement locus of the operating body. As a result, the position of the display unit does not change even if the operating body makes such a fine movement, and the display function of the display unit is stable, and a high-quality faucet device can be obtained.

Perspective view showing the appearance of the faucet fixture Perspective view showing the water discharge switching display mechanism of the faucet fixture An exploded perspective view showing a water discharge switching display mechanism Explanatory drawing which shows the operation mode of the 1st action part and the 3rd action part of a display body Explanatory drawing which shows arrangement state of display part with respect to 1st cover Explanatory drawing which shows display body which concerns on 2nd Embodiment

〔Overview〕
The faucet fixture of the present invention is characterized by a water discharge display switching mechanism HK provided at the tip of the faucet main body J1 having a fluid flow path. The display switching mechanism HK selectively exposes each display to the window portion W provided on the outer wall of the faucet main body J1 constituting the faucet device when the raw water or purified water is switched and discharged. .. Hereinafter, embodiments of the faucet fixture according to the present invention will be described with reference to the drawings.

〔overall structure〕
The appearance of the faucet fixture according to this embodiment is shown in FIG. A cover C is provided at the tip of the faucet body J1 to form an outer wall of the faucet body J1. The cover C covers most of the faucet body J1 and the overall appearance of the faucet fixture is simply finished. This prevents dirt from accumulating at the joints of the cover C and the like. Specifically, the upper portion is covered by the first cover C1 and the lower portion is covered by the second cover C2. The joint between the first cover C1 and the second cover C2 is located at a considerably high position at the tip portion to prevent water from splashing as much as possible.

At the joint between the first cover C1 and the second cover C2, an operating body 1 for switching water discharge to, for example, purified water and raw water is provided. The operating body 1 is a so-called push-push type push button, and for example, it is displaced over a protruding position which is a first position and a pushing position which is a second position to switch a plurality of flow paths. As shown in FIG. 3, the operating body 1 is connected to a known water discharge switching mechanism TK provided in the faucet main body J1.

A window portion W indicating the type of water discharge switched by the operating body 1 is formed on the upper surface of the first cover C1. From the window portion W, a display surface 41 indicating a water discharge state such as "raw water" or "purified water" is exposed.

On the other hand, a circular opening is provided below the second cover C2, and a screen member 7 for switching the water discharge shape to a shower shape or a straight shape is fitted. The screen member 7 is provided with a lever 6 for rotation operation, and a scale 61 indicating the position of the lever 6 is provided on the side surface of the second cover C2.

[Operating body]
As shown in FIGS. 2 and 3, the operating body 1 has a bottomed tubular shape, is located at the boundary between the first cover C1 and the second cover C2, and is provided with a water discharge switching mechanism TK on the faucet main body J1. Connected to. The operating body 1 engages the hole portion 13 formed in itself with the protrusion TK2 of the water discharge switching mechanism TK and is connected to the water discharge switching mechanism TK. However, the operating body 1 transmits the force to the water discharge switching mechanism TK only on the back surface of the operating body 1. By pushing the operating body 1, the back surface of the operating body 1 pushes the end face of the operating shaft TK1 of the water discharge switching mechanism TK, and the operating body 1 shifts from the protruding position to the pushing position. On the contrary, when returning the operating body 1 to the protruding position, the operating body 1 is pushed in once, the return spring of the push / push mechanism is activated to project the operating shaft TK1, and the back surface of the operating body 1 is further pushed out.

An arm portion 12 is formed so as to project on a part of the surface of the operating body 1. The arm portion 12 is formed so as to project along the direction in which the operating body 1 is pushed in, and serves as a driving unit during the pushing operation of the operating body 1 to press the first acting portion 21 of the display body S. Further, along with the arm portion 12, a positioning portion 14 is formed so as to protrude on the surface of the operating body 1. As will be described later, the positioning portion 14 is a portion that the third acting portion 23 of the display body S comes into contact with when the operating body 1 is pushed into the pushing position. As a result, the posture of the display body S when the operation body 1 is pushed in is determined.

[Basic configuration of display body]
As shown in FIG. 3, the display body S mainly includes a display unit 4 that displays a selected water discharge state such as "raw water" or "purified water", and a faucet so that the display unit 4 changes its posture while rotating. It includes a shaft portion 24 supported by the main body J1. Further, the display body S has a first acting portion 21 pressed by the arm portion 12 of the operating body 1 and a second acting portion 22 pressed by the urging member 3 when the operating body 1 is returned to the protruding position. Have. Incidentally, the urging member 3 here is a torsion spring 3a. Further, the display body S includes a third acting unit 23 that abuts on the positioning unit 14 of the operating body 1 to determine the posture of the display unit 4 when the operating body 1 is in the pushed-in position.

As shown in FIG. 3, the display unit 4 has a shape obtained by vertically dividing a cylinder into four equal parts. Among them, the cylindrical surface is the display surface 41 on which the display 40 such as "purified water" is made. A plate-shaped first acting portion 21 extends from one of the two side surfaces 42 sandwiching the display surface 41, and a plate-shaped third acting portion 23 similarly extends from the opposite side surface 42. All of these extending directions are perpendicular to the pushing direction of the operating body 1. The first acting portion 21 and the third acting portion 23 are integrally formed with the display body S by using a resin material or the like.

A shaft portion 24 is provided further outside the first acting portion 21 and further outside the third acting portion 23. The pair of shaft portions 24 are rotatably supported by the support portion J2 of the faucet body J1. A plate-shaped partition 26 intersecting the shaft portion 24 is provided between the first acting portion 21 and the shaft portion 24 and between the third acting portion 23 and the shaft portion 24. The partition portion 26 is formed in a flange shape overhanging a portion to which the first acting portion 21 and the third acting portion 23 are connected. In particular, regardless of the posture of the first acting unit 21 and the third acting unit 23, the shape is such that the first acting unit 21 and the third acting unit 23 project upward in the vertical direction with respect to the connection portion with the first acting unit 21 and the third acting unit 23. It is done. As a result, it is possible to reliably prevent water from reaching the shaft portion 24 from the display unit 4 through the first acting unit 21 or the third acting unit 23.

By providing the shaft portion 24 via the partition portion 26 in this way, the positioning of the shaft portion 24 with respect to the display surface 41 becomes arbitrary, and the turning radius of the display surface 41 can be easily set. Therefore, the rotation angle of the display unit 4 and the like can be easily set in consideration of the stroke of the push-pull operation of the operating body 1 and the size of the internal space of the first cover C1.

As shown in FIG. 3, of the partition portions 26 of both, the one provided in the first acting portion 21 has a second acting portion 22 with which one end of the torsion spring 3a inserted through the shaft portion 24 abuts. It is provided. The other end of the torsion spring 3a is in contact with the reaction force receiving portion J3 of the faucet body J1, whereby when the operating body 1 is returned to the protruding position, the display body S is twisted. The spring 3a rotates so as to fall toward the tip of the faucet device.

If the arm portion 12 presses the first acting portion 21 when the operating body 1 is pushed in as in the present configuration, the operating force applied to the operating body 1 is the first of the display body S via the arm portion 12. It is directly transmitted to the action unit 21. Therefore, the display body S can be reliably operated. For example, even if the shaft portion 24 of the display body S is contaminated with water stains or the like and the operation of the display body S is not smooth, the switching operation of the display unit 4 is reliable.

Further, when the arm portion 12 of the operating body 1 directly presses the first acting portion 21 of the display body S, the switching operation of the display unit 4 becomes agile, and a faucet device having an excellent usability can be obtained.

Further, the partition portion 26 provided with the second acting portion 22 is provided with a stopper 25 that restricts the display portion 4 from rotating in the direction opposite to the pushing direction at a predetermined position. The stopper 25 comes into contact with a part of the support portion J2 provided on the side of the faucet main body J1. In this state, for example, "raw water" marked on the display surface 41 is exposed from the window portion W.

As shown in FIG. 3, the shaft portion 24, the first acting portion 21, the second acting portion 22, and the third acting portion 23 are all provided on the outside of the display unit 4 in a state where the display unit 4 is viewed from the front. There is. This contributes to increasing the size of the display unit 4. For example, in order to sequentially expose the display 40 of the display unit 4 to the window unit W, it is necessary to secure a space inside the first cover C1 where the display unit 4 can change its posture. Although the size of the first cover C1 is limited, the display unit 4 should be as large as possible in order to improve visibility. However, in order to increase the size of the display unit 4, the radius of gyration from the display surface 41 to the axis X of the shaft unit 24 becomes long, and the display unit 4 interferes with other objects when the display unit 4 changes its posture. You also need to avoid that. Therefore, the shaft portion 24 and the partition portion 26 that supports the shaft portion 24 are provided at positions offset to the left and right with respect to the movement locus of the display unit 4. With this configuration, it is possible to provide a large display unit 4 having excellent visibility.

[Water stop function]
When using the faucet fixture, water may enter through the window W. The water that has entered through the window portion W adheres to the shaft portion 24, the first acting portion 21, the third acting portion 23, and the like, and causes the accumulation of stains such as water stains. If the dirt is excessively accumulated, the operability of the display body S is impaired, or the stationary posture of the display body S is disturbed, and the display function of the display unit 4 is impaired.

The quality of the sliding state between the shaft portion 24 and the support portion J2 is affected by the degree of dirt such as water stain on the shaft portion 24. When dirt accumulates on the shaft portion 24, resistance is generated between the shaft portion 24 and the support portion J2, the movement of the display body S becomes heavy, and the display body S stops at an unscheduled position, indicating a water discharge state. Function is impaired.

In the present embodiment, the edge portion 43 constituting the peripheral edge portion of the display surface 41 faces in a direction orthogonal to the position change direction Y of the display surface 41 in the direction view facing the display surface 41, that is, the shaft portion 24. It is composed of a side edge portion 43a which is a pair of edge portions facing in the extending direction and an upper and lower edge portions 43b which are a pair of edge portions facing in the position changing direction Y of the display surface 41. In other words, the side edge portion 43a extends along the direction of the position change direction Y of the display surface 41, and the upper and lower edge portions 43b extend in the extending direction of the shaft portion 24.

Although the edge portion 43 has a circular shape as a whole, one or both of the side edge portions 43a and one or both of the upper and lower edge portions 43b do not have to have a linear shape, and one or more of them need to have a linear shape. It may be a curved shape such as an arc or a bent shape. Incidentally, the position changing direction Y of the display body S means the direction in which the display unit 4 rotates about the axis X of the shaft unit 24 as shown in FIG.

Since most of the water reaching the shaft portion 24 and the like enters from the upper window portion W, in the present embodiment, the shaft portion 24, the first action portion 21, the third action portion 23, and the like are combined with the pair of side edge portions 43a. On the other hand, it is provided on the outside.

As a result, the propagation of the infiltrated water is suppressed, the first working portion 21 and the shaft portion 24 are maintained in a clean state without water stains, and the display position of the display surface 41 with respect to the window portion W is properly maintained. To.

Further, in the present embodiment, the gap size between the display surface 41 and the first cover C1 is also set as follows. That is, as shown in FIG. 5, the distance L1 between the pair of side edge portions 43a and the inner surface of the first cover C1 facing which the side edge portions 43a face is the lateral edge portion 43a of the display surface 41. The distance between a different portion and the inner surface of the first cover C1 on which the portion faces is set shorter than the distance L2.

As a result, even if water tries to infiltrate through the window portion W, the movement of water is blocked by the effect of surface tension or the like at the side edge portion 43a having a narrow interval. Therefore, the first acting portion 21 and the shaft portion 24 can be kept clean, and the smooth movement of the display body S can be maintained satisfactorily.

The distance L2 between the inner surface of the first cover C1 and the display surface 41 may be set as follows, for example. That is, as shown in FIG. 5, the distance between the portion of the display surface 41 that is not the edge portion 43 and the inner surface of the first cover C1 is L2 (mm), and the first acting portion 21 and the like of the display surface 41 are provided. Assuming that the distance between the edge 43 on the side to be covered and the inner surface of the first cover C1 is L1 (mm), the value of (L2-L1) is preferably 0.05-2. If it is smaller than this, it becomes difficult to exert the water stopping function at the edge portion 43 by making the gap size different. Further, by reducing the gap size at a portion other than the edge portion 43, the display surface 41 may be deformed due to the repeated operation of the display unit 4 or the relative position between the display unit 4 and the first cover C1 may be changed. Is likely to interfere with the inner surface of the first cover C1. In order to prevent such inconvenience, the value of (L2-L1) is preferably 0.1 or more, particularly 0.2 or more.

On the other hand, when the value of (L2-L1) is larger than 2, the display surface 41 becomes a position recessed from the window portion W, and the visibility of the display surface 41 deteriorates. However, even if it is smaller than 2, it is preferable to set it to 1.0 or less, particularly 0.5 or less, in order to further improve the visibility. As a result, the value of (L2-L1) is preferably 0.3.

The value of L2 is preferably 0.2 to 1.8. If it is less than that, the display surface 41 is likely to be damaged when the display unit 4 is deformed due to repeated use or when the relative position between the display surface 41 and the inner surface of the first cover C1 changes. Therefore, it is better to set it to 0.3 or more, particularly 0.5 or more. Further, if the value of L2 becomes excessive, the display surface 41 becomes a position deeper than the window portion W, and the visibility of the display deteriorates. Therefore, the value of L2 is preferably 1.5 or less, particularly 1.0 or less. As a result, it is preferably about 0.8.

The value of L1 is preferably 0.1 to 1.5. If it is less than that, the edge 43 and the inner surface of the first cover C1 are likely to interfere with each other due to deformation of the display 4 over time, and the operation of the display 4 may be impaired. Therefore, it is better to set it to 0.2 or more, especially 0.3 or more. On the other hand, when the value of L1 becomes large, it becomes difficult to exert the water stopping function by narrowing the gap. Therefore, it is better to further set it to 1.0 or less, particularly 0.6 or less. As a result, it is preferably about 0.5.

The shape of the window portion W is also characterized in order to prevent water that has entered the inside of the first cover C1 from the window portion W from reaching the first acting portion 21 and the shaft portion 24. .. In the present embodiment, the window portion W includes four opening edge portions W1. In this configuration, the window portion W is formed on the surface of the faucet main body J1, but is provided so as to be inclined so that the normal direction is slightly upward so that the user can easily see it. Of the four opening edge portions W1, a pair of intersecting opening edge portions W10 extending while intersecting the position changing direction Y of the display portion 4, and particularly at the lower intersecting opening edge portion W10, the position toward the center side. It is configured to spread outward along the change direction Y.

With this configuration, for example, when water intrudes into the faucet main body J1 from the display surface 41, the intrusion position can be guided to the central portion of the lower crossing opening edge W10. That is, although the window portion W is formed on the surface of the faucet main body J1, it is often provided so as to be inclined so that the normal direction is slightly upward so that the user can easily see it. In that case, the central position of the lower crossing opening edge W10 is the lowest in the vertical direction. Even if water enters the inside of the faucet main body J1 from this position, the position is a position away from the first acting portion 21 and the shaft portion 24. Therefore, the infiltrated water is prevented from adhering to the first acting portion 21 and the shaft portion 24, and the smooth movement of the display body S is maintained for a long period of time.

[Third action part of the display body]
In the faucet fixture of the present embodiment, the display body S is provided with a third action unit 23 in order to ensure the display posture of the display unit 4 indicating "raw water" or "purified water". When the arm portion 12 which is the driving unit pushes the first acting unit 21 and the display unit 4 is changed to a predetermined posture, the third acting unit 23 extending from the side surface 42 of the display unit 4 becomes the operating body 1. It comes into contact with the provided positioning portion 14. As a result, the display body S is prevented from being returned by the torsion spring 3a, and for example, "purified water" is stably displayed on the window portion W.

As shown in FIGS. 3 and 4, the arm portion 12 rotates and drives the display unit 4 by pushing the first action unit 21, and the third action unit 23 is attached to the positioning unit 14 in the latter half of the rotational operation of the display unit 4. The contact is made and the return operation of the display unit 4 is prevented. Of these, the drive mechanism using the arm portion 12 rotates the display portion 4 greatly while minimizing the pushing amount of the operating body 1. One of the positioning mechanisms reliably prevents the display unit 4 from returning. Since the purpose of each mechanical part is different in this way, for example, the distance H1 between the position where the arm part 12 pushes the first action part 21 and the axis X of the shaft part 24 is set small, and the stroke of the arm part 12 is set. On the other hand, the rotation angle of the display unit 4 is increased. However, in this case, the pressing force acting between the arm portion 12 and the first acting portion 21 becomes large.

On the other hand, in order to reliably prevent the display unit 4 from returning, for example, the distance H2 between the position where the positioning unit 14 and the third acting unit 23 abut and the axis X is increased, and the positioning unit 14 and the third acting unit 14 act. It is preferable to reduce the contact force with the portion 23. Further, if the radius of gyration from the axis X to the third acting portion 23 becomes large, even if some wear occurs in either the positioning portion 14 or the third acting portion 23, the amount of change is the rotation of the display unit 4. Only a small amount of the locus is present, and the fixed posture of the display unit 4 hardly changes. Therefore, the position of the display unit 4 with respect to the window unit W is always constant, and the display function is reliably exhibited.

In this way, by separately providing the mechanism for driving the display unit 4 and the mechanism for positioning, the pushing function and the positioning function of the display unit 4 can be reliably exerted.

[Operation mode of display body]
FIG. 4 shows an operation mode of the operation body 1 and the display body S. 4 (a) to 4 (d) show how the first action unit 21 and the third action section 23 function when the operating body 1 is pushed.

FIG. 4A shows a state at the moment when the arm portion 12 comes into contact with the first acting portion 21. In this state, the stopper 25 of the partition portion 26 is still in contact with the support portion J2 of the faucet body J1. Focusing on the position of the first acting portion 21 where the arm portion 12 abuts, the extending direction of the radius connecting the abutting position and the axial center X of the shaft portion 24 is substantially relative to the pushing direction of the arm portion 12. It is orthogonal. That is, when the arm portion 12 is pushed in this posture, at the initial stage of pushing the arm portion 12, the contact position of the first acting portion 21 moves along the tangential direction of the rotation locus of the first acting portion 21. 1 The amount of movement of the acting portion 21 and the amount of pushing of the arm portion 12 are substantially equal. That is, since the amount of movement of the first acting unit 21 is maximized with respect to the amount of pushing of the arm portion 12, the display unit 4 swiftly rotates from the beginning of pushing the operating body 1. Therefore, it is possible to obtain a faucet fixture having an excellent operation feeling.

Further, at the initial stage of pushing the operating body 1, the distance between the position where the arm portion 12 applies the pushing force to the first acting portion 21 and the axis X is indicated by H1. As shown in FIG. 4D, this distance H1 is shorter than the distance H2 between the contact point between the third acting unit 23 and the positioning unit 14 and the axis X. By shortening the rotating arm at the position where the arm portion 12 pushes in the first acting portion 21 in this way, the display portion 4 can be rotated over a large angle even if the pushing amount of the arm portion 12 is small. If the rotating arm is shortened, the pushing force by the arm portion 12 becomes large, but this pushing force is only a slight burden on the operator and does not cause any particular problem.

Further, the arm portion 12 and the first acting portion 21 of the present embodiment are configured so as to reduce mutual wear. In particular, in the arm portion 12, the tip of the arm portion 12 is chamfered in a curved surface shape. When the arm portion 12 is pushed in from the state of FIG. 4A, the first acting portion 21 gradually inclines, and the chamfering of the tip of the arm portion 12 causes the arm portion 12 and the first acting portion 21 to come into contact with each other. Changes sequentially. As a result, the wear of both members is reduced, and the agile follow-up operation of the display body S with respect to the pushing operation of the operating body 1 is maintained for a long period of time.

In the state of FIG. 4A, the third acting unit 23 and the positioning unit 14 of the operating body 1 have not yet come into contact with each other.

FIG. 4B shows a state in which the arm portion 12 pushes the first acting portion 21 to the intermediate position of the scheduled stroke. The first acting portion 21 deepens the inclination angle in response to the pressing of the arm portion 12. At this time, since the amount of deformation of the torsion spring 3a increases, the force required for pushing the operating body 1 also increases. However, the rotating arm from the axis X to the contact position between the arm portion 12 and the first acting portion 21 also gradually becomes longer. Therefore, both effects are canceled out, and the pushing amount of the operating body 1 is maintained substantially constant.

In this way, the distance between the contact position and the axis X becomes large, and the first acting portion 21 tilts, so that the rotation angle of the display body S with respect to the pushing amount of the operating body 1 gradually decreases. As described above, the display unit 4 of the present embodiment rotates quickly at the beginning of pushing the operating body 1, and the degree of interlocking of rotation decreases as it approaches the final stage of pushing, and the display unit 4 reaches a stationary state. Such an operation mode of the display unit 4 makes the operation feeling of the operation body 1 high quality.

In the state of FIG. 4B, since the first acting portion 21 is in a more inclined posture, the tip of the arm portion 12 escapes upward in the drawing and is easily bent and deformed. However, the bending deformation of the arm portion 12 is kept at a constant angle by the regulating portion J4 provided in the faucet main body J1. Therefore, the arm portion 12 can be made thin or thin, and the water discharge type switching mechanism can be made compact.

Even in this state, the third acting unit 23 and the positioning unit 14 of the operating body 1 have not yet come into contact with each other.

FIG. 4C shows a state in which the arm portion 12 approaches the final stage position of pushing and the third acting portion 23 is in contact with the lift surface 15 of the positioning portion 14. The lift surface 15 is inclined so that the third acting portion 23 can be lifted more easily. In the state after this, in principle, only the third acting unit 23 comes into contact with the operating body 1 of the display body S.

FIG. 4D shows a state in which the pushing of the arm portion 12 is completed and the third acting portion 23 rides on the position-determining surface 16 of the positioning portion 14. From the state of FIG. 4C to the state of FIG. 4D, the lift surface 15 lifts the third acting portion 23 by the pushing operation of the operating body 1, and the display body S further rotates, so that the arm portion 12 is the third. 1 It is separated from the working part 21.

At this time, the contact force generated between the third acting portion 23 and the position-determining surface 16 is determined based on the urging force of the torsion spring 3a. However, as shown in FIG. 4 (d), the distance H2 between the contact position between the third acting portion 23 and the position-determining surface 16 and the axis X is longer than H1 shown in FIG. 4 (a). It is set. Therefore, the contact force can be small. As a result, the wear between the third acting portion 23 and the position-determining surface 16 can be reduced, and the stationary posture of the display body S at the pushed-in position of the operating body 1 can be stabilized for a long period of time.

Further, at the final stage of the pushing position of the operating body 1, the operating body 1 may move somewhat along the pushing direction due to the characteristics of the push / push mechanism. For example, in order to return the operating body 1 to the protruding position again, it is necessary to push the operating body 1 slightly. However, in the present embodiment, the position-determining surface 16 on which the third acting unit 23 rides and stands still is made parallel to the movement locus when the operating body 1 is pushed. Therefore, the posture of the display unit 4 does not change even if the operating body 1 makes a slight movement, and the display function of the display unit 4 is stable, and a high-quality faucet device can be obtained.

[Material]
The material of the display body S can be made of, for example, a polyacetal resin (POM material) or the like. The first acting unit 21 or the third acting unit 23 of the display unit 4 slides on the operating body 1. Further, since the shaft portion 24 is in sliding contact with the support portion J2 of the faucet main body J1, it is preferable to use a material resistant to wear.

Further, the display body S may be made of, for example, a resin member such as a transparent polycarbonate material. In that case, it is advisable to print a switching display such as "raw water" or "purified water" on the back side of the display surface 41. With this configuration, even if the display surface 41 rubs against the back surface of the first cover C1, it is possible to prevent the display from peeling off.

Further, an appropriate material can be selected as long as it can ensure ease of manufacture and durability. For example, as the material of the operating body 1, various metals, polyacetal resin (POM), ABS resin and the like can be used, and plating grade ABS resin is desirable from the viewpoint of cost, appearance and moldability. Further, as the material of the display body S, various metals, POM, ABS resin, etc. can be used, ABS resin is desirable from the viewpoint of cost, appearance, and moldability, and POM is desirable from the viewpoint of strength and durability. ..

[Another Embodiment]
As shown in FIG. 6, the first acting portion 21 or the third acting portion 23 provided on the display body S can be configured separately from the shaft portion 24. However, these three parts are provided on the outside with respect to the side surface 42 of the display unit 4. In order to secure the radius of gyration of the display unit 4, the leg portion 27 extends from the lower part of the side surface 42, and the shaft portion 24 is provided at the tip thereof. Further, the first acting portion 21 and the third acting portion 23 are projected to the left and right from the side surface 42 of the display portion 4 separately from the leg portion 27.

With this configuration, when the arm portion 12 pushes the first acting portion 21, the first acting portion 21 bends, and as a result, the relative positional relationship between the shaft portion 24 and the display surface 41 changes significantly. It disappears. Therefore, the position of the display surface 41 with respect to the window portion W is always accurate.

The spring receiving portion 28 for receiving the torsional spring 3a and the stopper 25 for the faucet main body J1 may be provided at the end of the first acting portion 21. In this case, the winding portion of the torsion spring 3a is inserted into a rod-shaped protrusion or the like (not shown) appropriately formed in the faucet main body J1.

In addition, when the torsion spring 3a is inserted through the shaft portion 24, for example, the lower surface of the first acting portion 21 can be used as the spring receiving portion on the display body S side.

In addition, unlike the above-described embodiment, it is assumed that the display of the display body S is switched only by the first acting unit 21 without providing the third acting unit 23. At that time, the stationary posture of the display body S in the state where the operating body 1 is pushed in is determined by the contact state between the arm portion 12 and the first acting portion 21. In that case, in order to stabilize the posture of the display body S, the surface of the arm portion 12 that comes into contact with the first acting portion 21 is made a plane, and this plane is configured to be parallel to the pushing direction of the operating body 1. .. As a result, it is possible to prevent the posture of the display unit 4 from changing even when the operating body 1 moves by a predetermined amount along the pushing direction.

In the above embodiment, the first acting unit 21 and the third acting unit 23 are provided at positions opposite to the display unit 4, but in that case, the operating body 1 swings its head to the left or right instead of straight. When pushed in while the arm portion 12 is pushed in, the timing of transition from the contact state between the arm portion 12 and the first acting portion 21 to the contact state between the positioning portion 14 and the third acting portion 23 changes and the movement of the display body S changes. May be discontinuous.

Therefore, although not shown, the first acting unit 21 and the third acting unit 23 may be provided on the same side with respect to the display unit 4. In that case, for example, the first acting portion 21 is formed to protrude on the side surface 42 of the display portion 4, and the third acting portion 23 is further formed to protrude from the tip of the first acting portion 21. By arranging the first acting portion 21 and the third acting portion 23 in close proximity to each other in this way, the arm portion 12 with respect to the first acting portion 21 and the positioning portion 14 with respect to the third acting portion 23 are arranged in close proximity to the operating body 1. Will be done. Therefore, even if the pushing posture of the operating body 1 is disturbed, the driving operation and the position fixing operation of the display unit 4 can be smoothly performed.

As another embodiment in which the water blocking function is exhibited in the window portion W, although not shown, for example, an edge of the edge portion 43 of the display surface 41 on which the first acting portion 21 or the third acting portion 23 is formed. A rib that projects toward the inner surface of the first cover C1 along the portion 43 can be provided to narrow the gap between the first cover C1 and the inner surface and enhance the water stopping function.

Further, a groove portion retired from the display surface 41 may be provided along the edge portion 43 of the display surface 41. As a result, it is possible to retain the water that is about to enter from the window portion W and prevent the water from propagating to the shaft portion 24 and the like.

Further, a similar groove portion may be provided and a plurality of drainage ports may be provided at the bottom of the groove portion, or the configurations of these water stop portions may be combined to form the display portion 4.

The faucet device of the present invention can be applied to a faucet device of a sink in which the water spout selected when switching the spout to, for example, raw water or purified water is switched and displayed on the window of the faucet body.

1 Operation body 12 Arm part 14 Positioning part 16 Positioning surface 21 First action part 22 Second action part 23 Third action part 24 Shaft part 4 Display part J1 Faucet body J4 Regulation part S Display body W Window part

Claims (7)

A faucet body with multiple channels inside and a window on the outer wall,
An operating body provided on the faucet body and displaced between the first position and the second position to switch between the plurality of flow paths.
A display body having a shaft portion rotatably supported by the faucet body within a predetermined angle range and having a display portion that exposes a display corresponding to a switching state of the plurality of flow paths to the window portion .
The faucet body and the urging member provided in contact with the display body are provided.
The display body
When the operating body is operated from the first position to the second position, the operating force applied by the operator to the operating body is transmitted through the driving unit of the operating body, and the first acting unit.
A faucet device including a second acting portion to which a returning force from the urging member is transmitted when the operating body is returned to the first position. The faucet device according to claim 1, wherein the shaft portion, the first acting portion, and the second acting portion are provided outside the display portion while the display portion is viewed from the front. The driving portion is a long arm portion, and when the first acting portion is pressed, the driving portion abuts on the arm portion to prevent the arm portion from bending to a side away from the first acting portion. The faucet device according to claim 1 or 2, wherein a regulating portion is provided on the faucet body. When the drive unit pushes in the first action unit and the display unit is changed to a predetermined posture, a third action unit provided on the display body and a third action unit provided on the display body so as to prevent the return operation of the display unit.
The faucet device according to any one of claims 1 to 3, further comprising a positioning portion provided on the operating body and abutting against the third acting portion. The faucet device according to claim 4, wherein the driving unit and the first acting unit are configured to be separated from each other in a state where the positioning unit and the third acting unit are in contact with each other. 4. In the display body, the distance between the axis of the shaft and the third acting portion is longer than the distance between the axis of the shaft and the first acting portion. Or the faucet device according to 5. According to claim 4, the position-determining surface of the positioning portion that abuts on the third action portion is formed in parallel with the movement locus when the operating body is operated from the first position to the second position. The faucet device according to any one of 6.

Images