JPH0232228Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a device for switching the water injection destination in a washing machine.

(b) Conventional technology A conventional example is shown in Japanese Utility Model Application Publication No. 57-55485.

As shown in FIGS. 6 and 7, the water supply switching device in this conventional example has a circular flange 6 in the middle of a water supply pipe 62 that receives water from a water supply hose 61.
8 protrudes outward, and the flange 68 is attached to the support base 6.
4 and rotatably placed on this flange 6.
A plurality of protrusions 65 are protruded at approximately equal intervals on 8, and an operation plate 66 is movably attached to an operation panel (not shown), and the operation plate 66 engages with the protrusions 65 and a portion thereof. A plurality of feed pawls 68 are provided in a protruding manner, and as the operation plate 66 moves, the protrusions 65 are engaged with the feed pawls 68 one after another.
2 is rotated to switch the direction of water supply to different water supply channels 69, 70 to the washing tub, dehydration tub, etc.

However, in this method, since the rotation angle of the water supply pipe 62 is large, there arises a drawback that the space for the water supply switching device in the operation section is inevitably increased.

(c) Purpose of the invention The present invention aims to save space in a washing machine, especially the water injection switching device.

(d) Structure of the invention The present invention rotatably supports a water inlet body that relays water supply from a water supply hose in an operating section located at the rear of the upper part of a washing tub or a dehydration tank. This water injection switching device for a washing machine is characterized in that the water outlet side opening is elongated in a direction perpendicular to the rotating direction of the water injection port body.

That is, since the water outlet side opening of the water inlet body is made elongated, the water inlet switching function can be sufficiently performed even if the rotation angle thereof is made small. Therefore, since the rotation range is reduced, the space of the water injection switching device can be saved.

(E) Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 5. In FIG. 5, reference numeral 1 denotes a washing machine frame in which a washing tub 2 and an outer dehydrating tank 3 are installed, and a dehydrating tank 4 is provided inside the outer dehydrating tank 3. An operating section 5 is installed at the rear upper part of the machine frame 1, and an operating panel 6 is provided on the front surface of the operating section 5. The front surface of the operation panel 6 has an opening into which a plate frame 7 is inserted, and push-button type keyboard operation buttons 8a and 8b are pivotally supported within the opening. The operation button 8a is used to switch the water injection destination, as will be described later, and the operation button 8b is used to switch a drain valve (not shown).

Now, in FIGS. 1 and 2, 9 is a substantially cylindrical water inlet body, and the water inlet side opening 12 at the upper part thereof is formed in a rectangular shape, and the inner peripheral wall of the water inlet side opening 12 is formed. A rib 24 is provided toward the inner diameter. Furthermore, pivot shafts 10a and 10b are provided on the outer wall of the opening 12 to protrude in the front-rear direction. The water inlet body 9 loosely inserts the water outlet side 13a of the hose joint 13 into the water inlet side opening 12, and can rotate in the left-right direction on the upwardly bulging portion 21a provided at the bottom 21 of the operating portion 5. The pivot shafts 10a, 10
b, and the front pivot shaft 10
A support rod 11 is provided protruding in the same direction as the pivot shaft 10a on the side of the washing tank side of the washing tank. Further, the water outlet side opening 25 at the lower part of the water inlet body 9 is formed into an oval shape (for example, an oval shape) up to the water outlet 26 at the lower end, and this oval water outlet 26 is formed so that the water inlet body 9 rotates. It is long in the direction (front-back direction) perpendicular to the direction (left-right direction). Therefore, even if the rotation angle of the water inlet body 9 is small, the water inlet body 9 can be switched to a predetermined position because the water outlet 26 is oval.

14 is a water filling box, and a water filling channel 1 is connected to the washing tub through a partition plate 15 that projects upward from the bottom.
6 and an injection channel 17 leading to the dewatering tank. The water filling box 14 is connected to the operating section 5.
The partition plate 15 is attached to the bottom of the water inlet body 9 so as to be located directly below the water inlet body 9.

In this way, the water from the water supply hose 18 is
The water is introduced into the water inlet body 9 through the hose joint 13, and is distributed to the water inlet channel 16 or 17 in the water inlet box 14 when the water inlet body 9 is rotated left and right by operating the operation button 8a. It will be done.

Next, the rotation mechanism of the water filler body 9 using the operation button 8a will be explained.

In FIGS. 3 and 4, reference numeral 19 is a torsion coil spring made by twisting a single wire several times to give it spring properties. There is. The torsion coil spring 19 is provided with a long hole 23 in a direction perpendicular to the pressing direction between the base end 20 and the pressing end 22 by twisting the wire once. The elongated hole 23 is shaped like an ellipse in the direction from the base end 20 to the pressing end 22.

Here, the attachment method will be explained. First, the torsion coil spring 19 has its base end 20 fixed to the front part of the water inlet body 9. Then, the torsion coil spring 19 is bent against the restoring force, and the elongated hole 2
3, the support rod 11 is loosely fitted therein. Then, the support rod 11 is pushed up by the edge of the elongated hole 23 due to the restoring force of the torsion coil spring 19, so that the water inlet body 9 rotates to the left about the pivot shafts 10a and 10b as fulcrums. That is, as shown in FIG. 3, the water inlet body 9 is set in advance so that the water outlet 26 can inject water toward the inlet channel 16 leading into the washing tub 2 by the restoring force of the torsion coil spring 19.

Since it is attached as described above, the torsion coil spring 19 elastically supports the water inlet body 9,
Its springiness serves as a buffer for the water inlet body 9. In other words, even when the pressure of the supply water is applied to the water inlet body 9, the torsion coil spring 19 acts as a cushion, so that water does not splash out much.

The pressing end 22 is located opposite the lower end of the side wall rib 27 of the push-up type keyboard operation button 8a from below.

Next, the operation will be explained.

First, when the operation button 8a is pressed, the pressing end 22 is pressed by the side rib 27 against the restoring force of the torsion coil spring 19, and the elongated hole 23 is also inevitably displaced downward. Then, the support rod 11 that is loosely fitted into the elongated hole 23 is also pushed by the edge of the elongated hole 23 and is displaced downward while sliding, so that the water inlet body 9 is moved toward the pivot point as shown in FIG. The water outlet 26 rotates slightly around the support shafts 10a and 10b so that water can be injected toward the water injection channel 17 leading to the dewatering tank 4. Incidentally, since the operation button 8a is of a push type, it is once locked in the pressed state, and the water inlet body 9 is maintained in a state in which water is injected into the water inlet channel 16.

Further, when the operation button 8a is pressed again, the locked state is released and the operation button 8a returns to its original position, and the torsion coil spring 19 also returns to its original position due to its restoring force. Then, the support rod 11 loosely fitted into the elongated hole 23 is also pushed from below by the lower end of the edge of the elongated hole 23 and returns to its original position while sliding, and the water inlet body 9 is opened to inject water into the washing tub. The rotation returns to the initial state set in .

From the above, in this embodiment, the water outlet 26 of the water inlet body 9 is formed into an oval shape in the direction orthogonal to the direction of rotation thereof, so that when the water inlet body 9 is rotated to a predetermined position on the left or right. The rotation angle can be small. Further, since the pressing width of the operation button can be reduced accordingly, the water injection switching device can have a space-saving structure.

In addition, since the rib 24 is provided on the inner circumferential wall of the water inlet body 9, the water coming out from the hose joint 13 is transferred to the water inlet body 9.
It is possible to prevent the device from hitting the inside of the device and rebounding upward, thereby eliminating the need for such a separate device, reducing the number of parts, and saving space.

Furthermore, since the rotation angle of the water inlet body 9 has become smaller, the rib 24 can be provided as close to the outer periphery of the hose joint 13 as possible, and the effect of preventing water splashing by the rib 24 can be improved. Can be done.

In this embodiment, the water injection destination is switched between the washing tub and the dehydration tub, but it can be used for various purposes without departing from the gist, such as switching between upper and lower water injection in the washing tub. .

(f) Effects of the invention In this invention, the water outlet side opening of the water inlet body is made elongated in the direction intersecting the direction of rotation thereof, and the water inlet side opening is provided with a rib extending from the water inlet body. Even if the rotation angle of the body is small, the water injection switching function and the water splash prevention function can be sufficiently performed, and the space of the water injection switching device in the operating section can be saved.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the water inlet body, Figure 2 is a cutaway view of the main parts of the water injection switching device, Figure 3 is a schematic diagram of the main parts before operation, Figure 4 is a schematic diagram of the main parts after operation, and Figure 4 is a schematic diagram of the main parts before operation. FIG. 5 is an overall perspective view of a washing machine, FIG. 6 is a cross-sectional perspective view of a main part of a conventional example, and FIG. 7 is a similar cross-sectional perspective view of another main part. 2...Washing tub, 4...Dehydration tank, 5...Operation unit,
18...Water supply hose, 9...Water inlet body, 25...
Outlet side opening, 26... Oval (long) water outlet.

Claims (1)

[Scope of utility model registration request] A water inlet body that relays water supply from a water supply hose is rotatably supported in the operation unit located at the rear of the upper part of the washing tub or dehydration tank, and the water outlet side opening of the water inlet body is connected to the rotation of the water inlet body. 1. A water injection switching device for a washing machine, characterized in that the water injection port body is elongated in a direction perpendicular to the water movement direction, and a rib is provided on the water inlet side opening of the water injection port body along the inner periphery thereof.