JPS6211497A - Joint apparatus for water supply of washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention provides an improved connection structure for connecting a joint pipe to which a water supply hose is connected to a water supply port on the washing machine main body side.
The present invention relates to No. 11 water supply joint device.

[Technical background of the invention and its problems 1 Conventionally, in a washing machine, a water supply hose connected to a water faucet is connected by fitting into a water supply port provided on the main body of the washing machine. I was trying to supply water to the washing illumination. However, in this case, water pressure and washing) 72
In order to prevent the water supply hose from accidentally coming off due to things like taking pictures of the machine, the fit between the water supply hose and the water supply port is strengthened, making it easy to attach and remove the water supply hose from the water supply port. The problem was that it could not be done.

On the other hand, recently, a plastic joint pipe to which a water supply hose is connected is used, and an elastic claw is provided at one end of the joint pipe, and the joint pipe is fitted into the water supply port, and the elastic claw (A) is attached to the washing machine main body. A water supply hose is provided in which a water supply hose is removably connected to a water supply port via a joint pipe by removably engaging the water supply port in the vicinity of the water supply port. In this case, the operation of attaching and detaching the water supply hose to the water supply port is easier than in the case described above (although it utilizes the elastic deformation of the elastic claw, the elastic claw deteriorates due to repeated attachment and detachment). There is a problem that a reliable connection between the joint pipe and the water supply port cannot be obtained due to deformation or the like.

['R, Akira's Purpose] The present invention has been made in view of the above circumstances, and its purpose is to easily attach and detach the joint pipe to which the water supply hose is connected to the water supply port, and to To provide a water supply joint device for a washing machine that can always ensure the connection between a joint pipe and a water supply port.

[Summary of the Invention] The present invention provides a water supply port provided on the main body of the washing machine, a joint pipe to which a water supply hose is connected and fitted to the water supply port,
A first protrusion provided on the outer circumferential surface of the water inlet, a second protrusion located on the outer circumferential surface of the joint pipe facing the first protrusion, and a second protrusion provided on the water inlet. When the overlapping joint pipes are fitted, the first and second protrusions are rotatably mounted so as to straddle both the first and second protrusions, and rotation from the mounting position causes the first and second protrusions to The feature is that it has a configuration that includes a connecting ring on the right side of the clamping part that locks in a partially clamped state, and the operation of attaching and detaching the joint pipe to the water supply port is performed by rotating the connecting ring. .

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.

First of all, in Figure 2, 1 is a two-tank type washing) υ machine washing 't71.
M body, 2 is its outer box, inside this outer box 2 there is a washing machine on the left side in the figure. A dehydration tank (not shown) is provided on JM't 3 and the right side. Reference numeral 4 denotes an operation box disposed at the rear of the upper part of the outer box 2, and the operation panel 5 of this box includes a washing timer 6, a spin-drying timer 7, and a knob 8 for closing a water valve (not shown) by 17tl. It is arranged. Reference numeral 9 denotes a water supply recess formed in a substantially central portion of the operation panel 5. And the first
In the figure, 10 is a water supply case disposed at the bottom of the operation box 4, which includes a washing tank side water supply channel 11 communicating with the washing tub 3 side and a dehydration tank side water supply channel 12 communicating with the dehydration tank side. is formed. Reference numeral 13 denotes a water supply switching case that is located above the water supply case 10 and is movable in the left-right direction.
When the lower end opening is located above the R inspection water supply channel 11 as shown by the solid line in FIG. It can be selectively switched between when the dewatering tank side water supply channel 12 is located above the dewatering tank side water supply channel 12. A cover 15 covers the upper surface of the water supply case 10, and a cylindrical water supply port 16 is protruded from this cover. The upper end of this water supply port 16 penetrates the bottom of the four water supply parts 9 and protrudes upward, and on both left and right sides of the upper end of the protruding outer peripheral surface, as shown in FIG. 3, protrudes outward. First protrusions 17, 17 are formed. 1
Reference numeral 8 denotes a joint pipe whose upper part is fitted with a water supply hose 19 and whose lower part is fitted into the water supply port 16, and has a flange on the outer peripheral surface of the axially intermediate part so as to face the first protrusions 17, 17. A second protrusion 20 having a shape is formed, and a plurality of hose removal prevention protrusions 21 for connecting the water supply hose are provided on the upper part of the second protrusion 20, that is, on the outer peripheral surface of the connection side part of the water supply hose 19. It is formed in steps. Thus, this joint pipe 18 is fitted and supported by the water supply port 16 with the lower surface of the second protrusion 20 in contact with the upper end surface of the water supply port 16 when the joint pipe 18 is connected to the water supply port 16. ing. Reference numeral 22 denotes a connecting ring, which has a handle portion 23 on its outer circumferential surface, and is composed of an upper first clamping protrusion 24 and an opposing lower second clamping protrusion 25 on its inner surface. The gripping portion 26 is placed on the right side. In this clamping part 26, the second clamping protrusion 25 is formed with a notch 27.27 corresponding to the first protrusion 17.17, as shown in FIG. Additionally, first and second clamping protrusions 24 and 25 are provided on the inner surface of the connecting ring 22.
A first stopper 28.28 is formed between each of the cutout portions 27.27 at one end side thereof, and
A second stopper 29.
29 is formed. As shown in FIG. The first and second clamping projections 24 and 25 of the clamping part 26 are rotatably mounted so as to straddle both the second projections 17 and 2'0, and the rotation from the mounted state causes the first and second clamping projections 24 and 25 of the clamping part 26 to between the first and second protrusions 1
7 and 20 are locked in a sandwiched state, thereby connecting the joint pipe 18 to the water supply port 16. Here, as shown in FIG. 4, the inner diameter dimension A of the first clamping protrusion 24 in the connecting ring 22 is set smaller than the inner diameter dimension B of the second clamping protrusion 25 (A<8 ), and the outer diameter C of the temporary fixing protrusion 21 of the joint pipe 18 is set to be slightly larger than the inner diameter A of the first clamping protrusion 24, that is, the minimum inner diameter of the connecting ring 22. There is (C>A).

Therefore, in this case, the connection ring 22 connects the hose 51 to the joint pipe 18 from its water supply hose connection side (upper side).
It is attached in advance to the joint pipe 18 as shown in FIG. 3 by fitting over the protrusion 21.

In this attached state, the first clamping protrusion 24 of the connecting ring 22 is positioned between the second protrusion 20 and the hose temporary fixing protrusion 21 to prevent it from coming off.

In the above configuration, when connecting the joint pipe 18 to the water supply port 16, first attach the connecting ring 22 to the joint via 18 as shown in FIG.
A water supply hose 19, one end of which is connected to a water faucet (not shown), is fitted and connected.

Then, a3 is attached to the second clamping protrusion 25 of the connecting ring 22.
1 = The handle portion 23 of the connecting ring 22 is connected to the water inlet portion 16 so as to correspond to the first protrusions 17, 17, respectively. The joint pipe 18 is fitted into the water supply port 16 with the joint pipe 18 in the position facing forward.Then, the second clamping protrusion 25 that is attached to the connecting ring 22 is connected to the first protrusion 17. By being positioned below 17, the connecting ring 22 is attached so that its clamping portion 26 straddles both the first and second protrusions 17 and 20. From this state, the handle portion 23 When the connecting ring 22 is rotated in the direction of arrow A in FIG. 3 to the position shown by the two-dot chain line in the same figure, the clamping portion 26 is moved between the first and second positions as shown in FIG. The protrusions 17 and 20 are held in place, and the coupling ring 22 connects the joint pipe 18 to the water supply port 16 in a manner that prevents it from coming off. When rotated to the position, the second stoppers 29, 29 respectively move to the first position.
Since it comes into contact with the protrusion 17.17, it cannot rotate any further.

, Meanwhile, remove the joint pipe 18 from this connected state.

In this case, when the connecting ring 22 is rotated in the opposite direction to arrow A and the handle portion 23 is placed in the position shown by the solid line, the notch 27° 27 in the second clamping protrusion 25 aligns with the first text portion 2.
9. The first and second
The clamping state between the protrusions 17 and 20 is released, and by lifting the joint via 118 along with the connecting ring 22 in this state, the joint via 18 can be removed from the water supply port 16.

In this case, when the connecting ring 22 is rotated to the position shown by the solid line, the first stoppers 28.28 abut the first protrusions 17.17, so that the connecting ring 22 cannot be rotated any further. It is now impossible to do so.

In this embodiment, a connecting ring 22 having a clamping portion 26 is installed at the water supply port 16 in a state where the joint pipe 18 is at the bottom of the water supply port 16. and a second protrusion 20 provided on the joint pipe 18, and is rotatably mounted so as to straddle both the first and second protrusions 20 provided on the joint pipe 18, and as the connecting ring 22 rotates, the first and second protrusions are held together by the clamping part 26. Since the joint pipe 1B is connected to the water supply port 16 by holding the joint pipes 17 and 20 in a clamped state, it is possible to disconnect the joint pipe 18 to which the water supply hose 19 is connected from the water supply port 16. This can be done by simply rotating the ring 22. Moreover, the first and second protrusions 17 and 20 are moved by the clamping part 26 by the rotation of the connecting ring 22.
Since the joint is designed to clamp the joint, there is little risk of deterioration and deformation of the clamping part 26, etc., even if the attachment and detachment operations are repeated, unlike those that utilize the elastic deformation of elastic claws. The connection between the pipe 18 and the water supply port 16 is always ensured.

In addition, especially in the case of this embodiment, the outer diameter dimension C of the hose removal prevention protrusion 21 provided on the joint pipe 18 is set to be slightly larger than the inner diameter dimension A of the connecting ring 22. It can be installed without being removed,
Therefore, the connecting ring 22 will not be lost, and the possibility of connecting the water supply hose 19 to the joint pipe 18 without attaching the connecting ring 22 can be eliminated.

In the above embodiment, the connecting ring 22 is connected to the joint pipe 1 in advance.
Although the connecting ring 22 may be attached to the water supply port 16 side in advance, in this case, the second protrusion of the joint bi 118 is formed intermittently, and the connecting ring 22 A notch corresponding to the second protrusion is formed in the first clamping protrusion, and the joint pipe 18 is attached to the water inlet 16 with the small knot ring 22 attached to the water inlet 16. After that, the two may be connected by rotating the connecting ring 22.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with appropriate modifications within the scope of the invention.

[Effects of the Invention] As is clear from the above description, the present invention connects the water supply port of the joint pipe to which the water supply hose is connected by rotating the connection ring. This makes it possible to easily attach and detach the joint pipe and the water supply port, and it also has the excellent effect of always ensuring the connection between the joint pipe and the water supply port.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a vertical sectional view of the main parts in a connected state, and FIG. 2 is a two-tank washing machine ct1. Figure 3 is a perspective view of the upper part of the machine, Figure 3 is an exploded perspective view of the main parts, Figure 4 is a front view of the joint pipe and connecting ring, and Figure 5 is a cross-sectional view of the connecting ring taken along line v-V in Figure 4. It is. In the figure, 1 is the main body of the washing machine, 16 is the water supply port, 17 is the first protrusion, 18 is the joint pipe, 1 is the water supply hose, 20 is the second protrusion, 21 is the hose stopper protrusion, 22 is a connecting ring,
26 is a holding part. . Applicant: Toshiba Corporation Figure 1 Figure 2 Figure 3 Figure 4 Figure b Figure 5

Claims (1)

[Claims] 1. A water supply port provided on the main body of the washing machine, a joint pipe to which a water supply hose is connected and fitted into the water supply port, and a pipe provided on the outer peripheral surface of the water supply port. 1 protrusion, a second protrusion provided on the outer circumferential surface of the joint pipe so as to face the first protrusion, and the first protrusion in the fitted state of the joint pipe to the water supply port. and a connecting ring having a clamping part that is rotatably mounted so as to straddle both of the second protrusions and locks the first and second protrusions in a clamping state by rotation from the mounting position. A washing machine water supply coupling device comprising: 2. The joint pipe has a hose removal prevention protrusion for connecting the water supply hose on the outer circumferential surface of the portion closer to the water supply hose connection than the second protrusion;
2. The water supply coupling device for a washing machine according to claim 1, wherein the outer diameter of the hose stopper projection is set to be slightly larger than the inner diameter of the connection ring.