JPH0213814Y2 - - Google Patents

Description

[Detailed description of the invention] This invention provides a valve body that contacts the water inlet and the hot water inlet of the stopper body, which can be moved in two different directions by rotating and swinging the valve body operating shaft. By moving the valve body in the first direction, the opening amounts of the water inlet and the hot water inlet are changed to adjust the mixing ratio of hot water, and by moving the valve body in the second direction, the mixing ratio is adjusted. The present invention relates to a hot water mixing faucet configured to open and close the water inlet and the hot water inlet in an adjusted state.

As this type of hot water mixing faucet, the present applicant has already proposed the one shown in Utility Model Application No. 54-27064 (Japanese Utility Model Application No. 55-126070).

In this device, a universal joint is provided on a valve body operating shaft that can freely rotate and swing, and the universal joint is slidably fitted into a hole of different diameters of the valve body. In addition to adjusting the mixing ratio of hot water and hot water, the valve body is slid in the plane direction by swinging the operating shaft to open and close the inlet for water and hot water, but there is room for improvement in some areas. Found out. That is, the swinging motion of the operating tool is converted into motion at the fitting portion of different diameters between the universal joint and the valve body, and the valve body is slid in the plane direction.
Firstly, in order to prevent rattling in the plane direction of the valve body, the fitting precision of the different diameter fitting portion is required to be high, and secondly, as the operating shaft swings, the valve body The and universal joint slide relative to each other at the mating part, but as a result of the falling force being applied to the universal joint, the valve disc and universal joint become strained at the mating part, making it difficult for the valve disc to slide smoothly. It is difficult to move and requires strong operating force.

In order to slide the valve body, which is structured separately from the operating shaft, only in the plane direction while increasing the shutoff performance, high manufacturing precision is required, and
As a result, sliding operation of the valve body becomes even more difficult.

They found room for improvement.

The present invention solves this problem with a simple modification, in which the valve body is formed into a partially cylindrical shape, and the partially cylindrical outer peripheral surface side of the valve body is connected to the water inlet and the hot water inlet. The valve body operating shaft is provided so as to be in contact with each other, and the valve body operating shaft is provided to be rotatable about its axis and swingable about the cylindrical axis of the valve body, and the shaft end of the valve body operating shaft and the valve body A fitting mechanism including a pinion gear on the valve body operating shaft side and a rack gear on the valve body side is provided between the inner circumferential surfaces of the partial cylinders, and a rack gear is provided on the valve body so as to correspond to the water inlet and the hot water inlet. Two holes are formed in the forward and backward directions, and an operating lever is integrally attached to the protruding end of the valve body operating shaft from the plug body, so that the operating lever is moved in the first direction. The valve body is operated by sliding the valve body in the cylindrical axis direction and in a direction perpendicular to the valve body operation shaft as the valve body operation shaft rotates, and by moving the operation lever in the second direction. The valve body is configured to swing around the cylindrical axis as the shaft swings.

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a cast-molded plug body, which is provided with a water inflow path X, a hot water inflow path Y, and a hot water mixing chamber A. Spacers 2, 2 with crank-shaped channels a and e, each made of an elastic material, are elastically fitted between them.

The spacers 2, 2 are arranged so that the water inlet b and the hot water inlet f approach each other, as shown in FIGS. A crank-shaped abutting portion B is provided at an adjacent portion to prevent rotation.

Reference numeral 3 denotes a valve seat holder, which is provided with channels c and g that communicate with crank-shaped channels a and e via O-rings, and a water inlet d and a hot water inlet h are formed at the ends of the channels, respectively. The elastic valve seats 4, 4 are elastically fitted, and springs 5, 5 for biasing the valve seats 4, 4 in the extraction direction are installed in the channels c, g.

6 is a valve body, 7 is a valve body operating shaft, and 8 is a shaft holder which fits and holds the valve seat receiver 3, and both 3 and 8 are integrated by welding near the holding part. .

A spherical body 9 is provided on one end side of the valve body operating shaft 7, and a holding portion 10 for the spherical body 9 is formed in the holder 8, and the holding portion 1
An elastic ring 11 is fitted in a state in which the spherical body 9 is connected to the spherical body 9, and the spherical body 9 is fitted into the spherical holding portion 10 while the ring 11 is elastically deformed.

Further, the shaft holder 8 is formed with a guide portion 12 extending in a direction perpendicular to the axis of the valve body operation shaft 7 , and the valve body operation shaft 7 is provided with a guide portion 12 .
A boat-shaped piece 13 that enters into the valve body 9 is provided so that the valve body operating shaft 7 can rotate freely with the rotation angle being regulated by the piece 13, and the spherical body 9 can be rotated along the guide portion 12. It is designed to be able to swing freely around the spherical core.

On the other hand, the valve body 6 is formed in a partially cylindrical shape,
The valve body 6 has two holes D and H spaced apart from each other in the cylindrical axis direction, that is, in the direction in which a rack gear moves forward and backward, which will be described later. The pitch is larger than the arrangement pitch of the water and hot water inlets d and h, and the valve body 6 closes the hot water inlet h when one hole D and the water inlet d are wrapped. The outer peripheral surface of the partial cylinder is placed in contact with the inflow ports d and h.

Next, 14 is a partial pinion gear provided at one end of the valve body operating shaft 7, 15 is a rack gear provided on the inner peripheral surface of the partial cylinder of the valve body 6, and 16 is a ridge portion facing the rack gear 15 in a parallel state. , both gears 14,
15, the partial pinion gear 14 fits between the rack gear 15 and the ridge 16.

That is, the valve body 6 and the valve body operating shaft 7 are integrally connected by a gear fitting mechanism C made up of both gears 14, 15 and the ridge 16, and in this connected state (that is, set state), the above-mentioned The spherical core of the spherical body 9 is positioned on the cylindrical axis of the valve body 6,
By sliding the valve body 6 in the cylindrical axis direction by rotating the valve body operating shaft 7, both inlets can be closed in a state including fully closing the water inlet d or the hot water inlet h. The opening amounts of d and h, that is, the mixing ratio of hot water and water, can be adjusted, and by swinging the valve body operating shaft 7 around the spherical center along the guide portion 12, the valve body 6 can be moved around its cylindrical axis. By rotating the opening and closing the water and hot water inlets d and h in the mixing ratio adjustment state, the inlet d and h can be opened and closed.

That is, by rotating and swinging the single valve body operating shaft 7, the valve body 6 can be slid and rotated in two different directions, and the mixing ratio of hot water and water and the opening/closing operation can be selectively or combinedly operated. It is set as.

8a is an engagement piece connected to the shaft holder 8, which fits into the engagement part 17 of the stopper body 1, and is connected to the stopper body 1.
On the other hand, the valve seat support 3 and shaft holder 8, which are in a unit state, are prevented from rotating relative to each other. 1
8 is a presser ring that screws into the internal thread of the stopper body 1;
This is to set the pressing force of the valve body 6 against the valve seats 4, 4. Reference numeral 19 denotes a decorative cover, which is screwed onto the retaining ring 18 using the external thread thereof. 2
Reference numeral 0 designates an operating lever attached to a protruding portion of the valve body operating shaft 7 from the plug body 1, and a cover portion 21 that covers a portion of the decorative cover 19 is connected thereto.

FIG. 10 shows a modified structure in which the valve body operating shaft 7 is swingably provided. In this case, instead of the spherical body 9, there is a cylindrical body 22 that is swingable with respect to the shaft holder 8.
It goes without saying that the valve body operating shaft 7 is rotatably provided with respect to the cylindrical body 22, and that the swing axis of the cylindrical body 22 is substantially aligned with the cylindrical axis of the valve body 6.

Although the gear 14 is a partial pinion gear, it may also be a complete pinion gear.

As explained above, the present invention has the above-mentioned configuration, and the valve body is directly slid by rotation of the valve body operating shaft through a motion conversion mechanism using a pinion and a rack gear, so it is different from the conventional technology. In addition, the valve body can be moved smoothly with a light operating force without causing any twisting.

Furthermore, the overall structure is simple, the overall operability is excellent, and costs can be reduced.

Moreover, since the valve body operating shaft slides the valve body by rotating the shaft, and swings the valve body around the cylindrical axis by swinging in one direction, for example, the valve body operating shaft Compared to the above-mentioned structure in which the valve body controls sliding movement and rocking movement of the valve body by swinging the valve body in two directions orthogonal to each other, at least the valve body operation shaft for controlling the sliding movement of the valve body is This eliminates the need for an operating space for the swing of the valve body, and the structure allows the valve body to slide directly by rotating the valve body operating shaft via the motion conversion mechanism using the pinion and rack gear as described above. Therefore, there is an advantage that the stopper main body can be significantly downsized.

[Brief explanation of drawings]

The drawings show an embodiment of the invention. FIG. 1 is a longitudinal sectional side view of the main parts of the hot water mixing faucet, and FIG. 2 is a longitudinal sectional front view thereof. Figure 3 is an exploded perspective view of the main parts, Figure 4
The figure is an explanatory diagram of hot water mixing ratio adjustment, Fig. 5 is a sectional view taken along the - line in Fig. 4, and Fig. 6 is an explanatory diagram of opening and closing of the inlet.
7 is a cross-sectional view taken along the line -- in FIG. 6, FIG. 8 is a plan view of the spacer, FIG. 9 is a cross-sectional view taken along the line -- in FIG. 5, and FIG. 10 is a cross-sectional view showing a deformed structure. 1... Plug body, 6... Valve body, 7... Valve body operating shaft, 14... Pinion gear, 15... Rack gear, d... Water inlet, h... Hot water inlet, C... Gear fitting mechanism .

Claims (1)

[Scope of utility model registration request] A valve body that contacts a water inlet and a hot water inlet of a stopper body is provided so as to be movable in two different directions by rotating and swinging a valve body operating shaft, and the valve body is moved in the first direction. The operation changes the opening amount of the water inlet and hot water inlet to adjust the mixing ratio of hot water, and the operation of moving the valve body in the second direction adjusts the water inlet and hot water inlet in the mixing ratio state. The mixing faucet is configured to open and close, and the valve body has a partially cylindrical shape, and the partially cylindrical outer peripheral surface side of the valve body is provided in contact with the water inlet and the hot water inlet, and the valve body An operating shaft is provided to be rotatable around its axis and swingable around the axis of the valve body cylinder, and a valve is provided between the shaft end of the valve body operation shaft and the inner circumferential surface of the partial cylinder of the valve body. A fitting mechanism is provided by a pinion gear on the body operation shaft side and a rack gear on the valve body side, and two holes are formed in the valve body in the direction in which the rack gear advances and retreats so as to correspond to the water inlet and the hot water inlet, Further, an operating lever is integrally attached to the protruding end of the valve body operating shaft from the plug body, and
As the valve body operating shaft is rotated by the movement operation in the direction, the valve body is slid in the cylindrical axis direction and in a direction perpendicular to the valve body operating shaft, and the operating lever is moved in the second direction. A hot water mixing faucet, characterized in that the valve body is configured to swing around a cylindrical axis as the valve body operating shaft swings due to operation.