JPH0519748U - Single lever type faucet - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to reduce wear around the working shaft. A movable bush 11 is fitted on the outer periphery of an action shaft 6 which is moved up and down by operating an operating lever, and the movable bush 11 is inserted into an engagement hole 4a of a movable disc 4 and is a protrusion of a sliding plate 10. It is engaged through the portion 10c, and the sliding pressure is reduced due to the surface sliding contact between the inner peripheral surface of the protruding cylindrical portion 10c and the outer peripheral surface of the movable bush 11, so that wear is reduced.

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a single-lever faucet, and more particularly to improvement of the relationship between a movable disk and a working shaft of the single-lever faucet.

[0002]

[Prior art and its problems]

 The single-lever faucet has a cross-sectional structure as shown in FIG. 3, and a fixed disc 3 is fixed inside the faucet body 2 fixed to the washbasin 1, and the fixed disc 3 is fixed on the fixed disc 3. A movable disc 4 is provided so as to be slidable, a slide plate 10 is provided on the upper surface of the movable disc 4, and an action shaft 6 of a lever shaft 5 is engaged in an engagement hole 4a formed in the movable disc 4. The lever shaft 5 is rotated around the fulcrum 7 by the operation of the operation lever 8, the action shaft 6 is rotated vertically and horizontally, and the movable disk 4 is slidably moved on the fixed disk 3. It has become one.

FIG. 4 is a perspective configuration diagram of the fixed disk 3 and the movable disk 4. The fixed disk 3 is formed with a pair of inflow ports 3a, 3b and an outflow port 3c, and the upper surface side is finished. It is the processed sliding contact surface P ₃ . On the other hand, the movable disk 4 has a sliding contact surface P ₄ in contact with the sliding contact surface P ₃ of the fixed disk 3 on the lower surface side, and a mixing hole 4b is formed in a concave shape on this lower surface side, and the opposite upper surface. The engaging hole 4a is formed on the side. A sound absorbing wire net 9 is installed in the mixing hole 4b of the movable disk 4.

As described above, the lever shaft 5 is rotated by swinging the operation lever 8 up and down and rotating it left and right, and the movable disk 4 slides on the fixed disk 3 via the action shaft 6. Due to the movement of the movable disc 4, the mixing hole 4b of the movable disc 4 straddles the inflow ports 3a, 3b and the outflow port 3c of the fixed disc 3, and the inflow ports 3a, 3b and the outflow port 3c are moved. By changing the opening area, it is possible to adjust the amounts of water and hot water that flow into the mixing holes 4b from the inlets 3a and 3b, respectively, and adjust the amount and temperature of hot water that flows out from the outlet 3c. Has become.

The sliding plate 10 attached to the upper surface of the movable disc 4 has a shape as shown in FIG. 5, and the sliding plate 10 includes a flat plate portion 10 a that abuts on the upper surface of the movable disc 4 and a movable disc. 4 is composed of an engaging portion 10b that engages with a stepped portion 4c formed on the No. 4 and a projecting cylindrical portion 10c that is integrally formed so as to project downward from the flat plate portion 10a. The projecting cylindrical portion 10c is a movable disk. 4 is engaged with the engaging hole 4a, and the action shaft 6 is engaged with the inside of the projecting cylindrical portion 10c.

In such a conventional structure, the sliding plate 10 is made of a resin such as aflon resin, and the operating shaft 6 slides up and down when the operating lever 8 is operated. However, there is a problem that the action shaft 6 causes friction in the projecting cylinder portion 10c, the outer periphery of the action shaft 6 is worn, and the operation lever 8 is loosened. There is a problem in that the sliding plate 10 becomes softer due to the temperature rise and wear is further promoted, and the entire protruding cylindrical portion 10c of the sliding plate 10 disappears due to wear.

[0007]

[Means for Solving the Problems]

 The present invention has been devised in view of the above-mentioned conventional problems, and an object thereof is to provide a single-lever water faucet that reduces wear around the working shaft and does not cause rattling. A single-lever water faucet which has one movable and freely rotatable left and right operating lever, and in which the movable disc is slidably moved with respect to the fixed disc through the action shaft by the operation of the operation lever. A movable bush is externally fitted to the shaft, and the movable bush is slidably inserted into an engagement hole formed in the movable disk via a slide plate.

[0008]

[Action]

 A movable bush is fitted on the outer periphery of the action shaft, and this movable bush is engaged in the engagement hole of the movable disc.Therefore, even when the action shaft moves up and down, the action shaft directly contacts the engagement hole. The movable bush reduces wear on the working shaft.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged cross-sectional view of the vicinity of the engaging hole of the movable disk. Inside the engaging hole 4a formed in the movable disk 4, as shown in FIG. The portion 10c is engaged, and in this example, the movable bush 11 is fitted on the outer periphery of the action shaft 6 and the movable bush 11 is engaged in the projecting cylinder portion 10c.

The movable bush 11 has a shape as shown in a perspective view in FIG. 2 and is formed into a cylindrical shape by a hard aflon resin or the like, and the ball portion 6 a of the working shaft 6 is provided inside. A spherical curved inner surface 11a that abuts the outer periphery of the curved inner surface 11a is formed, the upper surface side of the curved inner surface 11a is an open tapered portion 11b, and a penetrating opening 11c is formed on the bottom surface side. In addition, a pair of cut grooves 11d are formed in a notched shape on the opposite side surfaces from the upper side to the lower side. When the ball portion 6a of the working shaft 6 is brought into contact with the tapered portion 11b of the movable bush 11 and pressed from above, the kerf 11d is slightly opened and the ball portion 6a is fitted into the curved inner surface 11a, so that the working shaft 6 The movable bush 11 is attached to the lower end. With the movable bush 11 attached, the action shaft 6 can be assembled to the movable disc 4 as shown in FIG. 1. In such an assembled state, when the operation lever 8 is operated up and down, the action shaft 6 acts via the lever shaft 5. The shaft 6 moves up and down, but at this time, the action shaft 6 moves up and down in the projecting cylinder part 10c of the sliding plate 10 together with the movable bush 11, and the inner peripheral surface of the projecting cylinder part 10c and the outer peripheral surface of the movable bush 11 are moved. Since it moves up and down due to sliding contact, the contact area is larger than in the conventional case where the outer circumference of the ball part of the work shaft 6 was moved up and down by direct line contact, so wear is reduced and structure with less wear Can be

[0011]

[Effect of the device]

 The present invention provides a single-lever water faucet that has a single operating lever that is vertically swingable and rotatable left and right, and that slides a movable disc relative to a fixed disc through an action shaft by operating the operating lever. A movable bush is externally fitted to the outer periphery of the action shaft, and the movable bush is slidably inserted into an engagement hole formed in the movable disc through a slide plate, so that the operation can be performed. When the lever is operated in the vertical direction, the working shaft moves up and down, but the movable bush moves up and down due to surface contact with the sliding plate, which is surface contact compared to conventional line contact, and the contact surface is large. As a result, the wear pressure is reduced and wear can be reduced, and rattling of the single operation lever can be reduced.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional configuration diagram around an engagement hole of a movable disk.

FIG. 2 is an exploded perspective view of a movable bush and a working shaft.

FIG. 3 is a cross-sectional configuration diagram of a single lever type water faucet.

FIG. 4 is a perspective configuration diagram of a movable disk and a fixed disk.

FIG. 5 is an exploded perspective view of a movable disc and a sliding plate.

[Explanation of symbols]

 3 Fixed Disc 4 Movable Disc 4a Engagement Hole 5 Lever Shaft 6 Working Axis 6a Ball 8 Operating Lever 10 Sliding Plate 10a Flat Plate 10c Projecting Cylinder 11 Movable Bushing 11a Curved Inner Surface 11b Taper 11d Cut Groove

Claims (1)

[Scope of utility model registration request] 1. A single-lever water faucet having a single operating lever which can be vertically swung and horizontally rotatable, and in which a movable disc is slidably moved with respect to a fixed disc through an action shaft by the operation of the operating lever. A movable bush is externally fitted to the outer periphery of the action shaft, and the movable bush is slidably inserted into an insertion hole formed in the movable disk via a slide plate. Single lever faucet.