JP2925969B2 - One handle type hot and cold water mixing tap - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a one-handle type hot and cold water mixing tap. 2. Description of the Related Art As is well known, one-handle type hot and cold water mixing taps are roughly classified into a cylinder stem type, a cam core type, a ring type valve having two plates, and the like. The two-plate annular valve has a structure in which ceramic is used for each disk. Heretofore, the following proposal has been made for a hot / water mixing tap for bringing the upper and lower discs made of ceramic into close contact with each other and sliding it appropriately with a one handle to open and close the hot / water mixing tap. I have. That is, according to Japanese Patent Publication No. Sho 60-46303 and Japanese Utility Model Laid-Open Publication No. Sho 60-86675, the upper movable disk is rotationally slid and the movable disk is reciprocated by the one handle operating lever. However, in particular, in order to slide the movable disk in rotation, both proposals have a structure in which a cylindrical bearing is rotated by pivotally supporting an operating lever, and the movable disk is rotated by the cylindrical bearing. [0004] Therefore, in order to rotate the movable disk by the operating lever, a pivoting pin for the operating lever and an operation transmitting means of a cylindrical bearing are required, and the operation lever is operated only frequently. However, there is a problem in that excessive force is applied to the thin pivot pin and durability is impaired. [0005] Further, since the operation transmitting means is provided between the operating lever and the movable disk, when the operating lever is operated, the operational response between the reciprocating motion and the rotational sliding of the movable disk is different. There was a problem that there was a different asobi. SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and its gist is that a hot water inlet (12), a water inlet (13) and A one-handle type hot-water mixing system in which a ceramic movable disk (15) provided with a mixing chamber (16) on a lower surface side reciprocates and / or rotates closely on a ceramic fixed disk (11) having a hot-water outlet (14). An operating lever (2) rotatably and rotatably supported near an upper opening of a case body (3) housed in the hot and cold water mixing tap.
A plurality of rectangular protrusions (21) formed on the lower surface of the front end of 2) and having both side surfaces are formed on the movable disk (15).
It is movable by swinging of the plurality of protrusions (21) by being fitted into and engaged with a rectangular recess (19) provided in the diameter direction on the resin working disk (18) fixed above. A one-handle type hot / water mixer tap which slides the disk (15) back and forth and presses the side wall surface of the concave portion (19) with the side surfaces of these projections (21) to rotate and slide the movable disk (15). An annular packing () is provided between the bearing cylinder (24) pivotally supporting the operating lever (22) and provided on the opening side of the case body (3) and the upper surface of the operating disk (18). 27), whereby the entire surface of the movable disk is uniformly pressed onto the upper surface of the fixed disk. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail with reference to an embodiment shown in the accompanying drawings. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a cross-sectional view of a main part of the embodiment, FIG. 3 (A) is a cross-sectional view of A to A in FIG. 2, and FIG. FIG. 3C is a view showing the unplugged state of FIG. In FIG. 2, 1 is a mixer tap main body made of casting.
Reference numeral 2 denotes a cap body having a handle lever projecting therefrom.
Inside, a bottomed cylindrical case body 3 made of plastic and a plastic lid 4 fitted on the case body 3 are incorporated. At the bottom of the case body 3, a hot water introduction hole 5,
Water introduction holes 6 and hot and cold water discharge holes 7 are opened (5 and 6 are shown in the drawing in an overlapping manner), and ring packings 8, 9, and 10 are inserted into these holes. On the bottom of the case body 3, a fixed disk 11 made of ceramic is fitted and fixed.
7, a hot water inlet 12, a water inlet 1
3, and hot and cold water outlets 14 are provided. A rectangular mixing chamber 16 is recessed on the lower surface of a ceramic movable disk 15 that slides in close contact with the upper surface of the fixed disk 11. The above structure is substantially the same as that of a well-known one-handle type hot and cold water mixing tap provided with a ring valve made of two plates. In the present embodiment, the following creation is made in such a structure. . A rectangular recess 19 is diametrically formed in the upper surface of the working disk 18 fixed to the movable disk 15 by the tenon fitting 17, and a rack 20 is formed in the bottom of the recess 19. . A fan gear (that is, a rectangular projection having both side surfaces) 21 that meshes with (ie, fits and engages with) the rack 20 is formed at the tip of an operating lever 22 formed of a square bar, The vicinity of the base of the sector gear 21 is pivotally supported by a bearing cylinder 24 via a pivot pin 23 which is a pivot point. The bearing tube 24 includes a large-diameter portion 25 and a small-diameter portion 25 ′, and the small-diameter portion 25 ′ is rotatably fitted into the opening 26 of the lid 4. A large-diameter annular packing 27 is provided on the inner surface of the body 4 and on the upper surface of the working disk 18, respectively.
Through the abutment. Therefore, the bearing cylinder 24 may be provided at the opening of the case main body 3, so that the movable disk 15 can be uniformly pressed against the fixed disk 11. The bearing tube 24 has a relatively large rectangular through hole 28 in the vertical direction. That is, the through hole 28 allows the operating lever 22 to move in one direction (front-back direction).
It is set up in a size that can swing. In the vicinity of the lower opening of the through-hole 28, an inclined large-diameter portion 29 is formed at one side (front-rear direction), and the inclined surface 31 of the web 30 of the fan gear 20 comes into contact with the large-diameter portion 29. Thus, the enlarged diameter portion 29 serves as a stopper for swinging the operation lever 22.
The operating lever 22, the bearing tube 24, and the operating disk 18 are made of plastic and are formed by injection molding. Since the present embodiment has the above-described configuration, adjustment of the opening / closing / discharging amount of the hot / water mixer tap and temperature control of hot / cold water will be described. [Adjustment of Opening / Closing / Discharge Amount] When the operating lever 22 is tilted in the direction of arrow a in FIG.
3B, the rack 20 meshing with the sector gear 21 moves to the right in FIG. 3B, and the movable disk 15 slides back and forth on the fixed disk 11 so that the fixed disk 11 The hot water inlet 12 and the water inlet 13 are connected to the movable disc 1
Close all at 5 and close the hot water mixer tap. Then, the operation lever 22 is stopped when the inclined surface 31 of the web 30 contacts the enlarged diameter portion 29. Next, when the operating lever 22 is tilted to the opposite side, that is, to the position shown in FIG. 3C, the rack 20 moves to the left in FIG. 15 slides back and forth on the fixed disk 11, the hot water inlet 12 and the water inlet 13 of the fixed disk 11 both communicate with the mixing chamber 16 of the movable disk 15, and further communicate with the hot and cold water discharge port 14. The mixing tap is opened. And
The operation lever 22 is stopped when the inclined surface 31 of the web 30 contacts the enlarged diameter portion 29. In order to adjust the discharge amount of hot and cold water, since the hot water inlet 12 and the water inlet 13 are opened at the C-shaped position, if the inclination of the operation lever 22 is stopped at an appropriate position, the discharge amount is reduced. Can be adjusted. [Temperature control] When the operating lever 22 is turned in the direction b in FIG. 2 by turning the handle lever, the bearing cylinder 24 is turned and the side surface of the web 30 of the sector gear 21 is recessed. The wall of 19 is pressed to rotate the working disk 18. Therefore, the movable disk 15 fixed to the working disk 18 rotates while closely contacting the upper surface of the fixed disk 11. Therefore, the communication area between the hot water inlet 12 and the water inlet 13 with respect to the mixing chamber 16 is increased or decreased to adjust the temperature of the hot water. It is needless to say that the operator may incline the operating lever left and right. According to the present invention, the following effects can be expected. Since the plurality of rectangular projections at the tip of the operating lever are fitted into and engaged with the rectangular recesses on the operating disk, in particular, the plurality of projections can be engaged because of the recesses. Directly actuate the movable disk, and there is no thin pin for transmitting the operation as in the prior art. Reliability is improved. In particular, since an annular packing is interposed between the upper surface of the working disk and the bushing that pivotally supports the operating lever, the reciprocating distance of the movable disk is increased, so that the close contact with the fixed disk is impaired. Even in this case, the entire surface of the movable disk can be pressed against the fixed disk with a uniform force, which is advantageous not only for watertightness but also improves the operation of the movable disk.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an embodiment of the present invention. FIG. 2 is a cross-sectional view of a main part in a state of being incorporated in the mixing faucet main body of the present embodiment. 3A is a cross-sectional view taken along line AA of FIG. 2, and FIG.
(C) is an open state diagram of (A). [Description of Signs] 11: fixed disk, 12: hot water inlet, 13: water inlet, 1
4: hot and cold water outlet, 15: movable disk, 20: rack,
21: sector gear, 22: operating lever

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) F16K 11/00-11/24 F16K 31/53-31/54 E03C 1/044

Claims (1)

(57) [Claims] On a ceramic fixed disk (11) having a hot water inlet (12), a water inlet (13) and a hot water outlet (14), a ceramic movable disk (15) provided with a mixing chamber (16) on the lower surface side is in close contact. while reciprocating and / or in the one-handle type mixing faucet which rotates, at the upper opening near the rocking move one rotatably supported actuating lever of the case body housed in該湯water mixer tap (3) (22) Below the tip of
A plurality of rectangular protrusions (21) formed on the surface and having both side surfaces are formed in a rectangular shape provided on a resin operating disk (18) fixed on the movable disk (15) in a diametric direction. The movable disk (15) is reciprocally slid by the swing of the plurality of protrusions (21) by being fitted into and engaged with the concave portion (19) having the shape of a circle.
I pressed one handle type mixing faucet of the movable disk (15) Ru rotate sliding the side wall surface of the recess (19) in a side of 1)
A stopper for pivotally supporting the actuating lever (22);
A bearing cylinder (2) provided on the opening side of the case body (3)
And 4), said actuation disk (18) upper surface, by Rukoto put annular packing (27) between, the movable disc
A one-handle type hot and cold water mixing tap characterized in that the entire surface is uniformly pressed onto the upper surface of a fixed disk .