JPH0122631Y2 - - Google Patents

Description

[Detailed description of the invention] This invention rotates intermittently a dewatering/washing tub that has protrusions on the inner wall surface, and washes clothes using the synergistic effect of the water flow generated by the protrusions and the rotation of the laundry. Regarding dehydrating and washing machines.

In conventional washing machines of this type, the washing machine performs what is called intermittent rotation in which the spin-drying/washing tub is repeatedly rotated and stopped, and a protrusion provided on the inner wall surface of the tub generates a complicated water flow to perform washing.

Therefore, in order to withstand reaction forces caused by water flow and laundry, as well as centrifugal force and vibrations caused by dewatering operation, the protrusions must be securely fixed with a large number of screws, making assembly time-consuming.

This invention was developed with the above points in mind.
To provide a dehydrating/washing machine which has a simple structure, has a protrusion firmly and reliably attached to it, and can be easily assembled.

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

1 is an outer box, 2 is elastically suspended from the outer box 1,
A water receiving tank 4 is equipped with a power transmission mechanism 3 equipped with a water sealing device at the bottom, a balance weight 5 is fixed to the upper part, a protrusion 6 to be described later is held on the inner wall surface, and a rotating shaft 9 is fixed to the bottom surface. a dewatering/washing tub rotatably attached via the power transmission mechanism 3;
A motor transmits power to a rotating shaft 9 via a belt transmission mechanism 8. 10 is the panel section at the rear of the outer box 1,
A timer 11 and a brake drum 12 control the braking operation by engaging and disengaging a brake lever 13, and the brake lever 13 is operated by an electromagnetic device (not shown). Therefore, the protrusion 6 shown in FIG. 2 has a substantially triangular cross section with an apex 6a having the same height at the top, and the apex 6a is rounded and extends to both sides. Both sides 6b, 6b corresponding to the sides
is formed into a curved surface that is concave to the outside.
The bottom surface 6c is inscribed in the inner wall of the dewatering/washing tub 4. Step portions 6d are provided at both ends of each side surface 6b, and an engaging portion 6e is continuously provided on the extension of the bottom surface 6c. The top surface 6f is closed and the bottom surface 6f is closed.
It has an engaging portion 6g that is inscribed in the dewatering/washing tub 4 along the direction c and extends vertically upward. The lower surface 6h is closed and has a stepped portion 6k that slightly protrudes from the end surface of the engaging portion 6e. The joints on each side are rounded and have no sharp edges. Next, the inner wall surface of the dehydration/washing tub 4 shown in FIGS. At one or more distant locations (Figure 1 shows 1
) A pair of left and right frames 4 extending in the vertical direction
c, 4d are provided. That is, the frames 4c and 4d both have bottom portions 4e and 4f, and are open at the upper and inner sides facing each other, forming mounting grooves 4a and 4b. The length of the mounting grooves 4a, 4b in the vertical direction corresponds to the length of the engaging portion 6e of the protrusion 6,
Moreover, the height corresponds to the thickness of the engaging portion 6e. Also, the wall thickness of the sides of the frames 4c and 4d is 4g, and the bottom wall thickness is 4h.
correspond to the step portions 6d and 6k of the protrusion 6, respectively. And the balance weight 5 shown in Figure 4
is formed into a hollow shape and is constructed by filling the inside with, for example, a liquid, and has a flange 5a on the outer periphery.
and a plurality of mounting holes 5b provided therein.
It is fixed to the dehydration/washing tub 4 with screws. One or more recesses 5c are provided on the outer peripheral surface and below the flange 5a to accommodate and engage the upper engaging portion 6g of the protrusion 6. Therefore, the engaging portion 6g of the protrusion 6 is in the recess 5 in the installed state.
c, and when the balance weight 5 is fixed with a screw, the upper end surface of the recess 5c presses and fixes the upper surface of the engaging portion 6g (see Fig. 1), and a so-called protrusion is formed. 6 is prevented from moving upward and forward by a balance weight 5 at its upper part.

Next, the operation of the above configuration will be explained.

First, to explain the assembly situation, insert the engaging portion 6e of the protrusion 6 into the mounting grooves 4a, 4b of the dewatering/washing tub 4 from above, and push it in until the lower end is in close contact. Next, attach the outer circumference of the balance weight 5 to the dehydration/washing tub 4.
The balance weight 5 is inserted while fitting into the inner periphery of the balance weight 5 and the recess 5c of the balance weight 5 and the engaging portion 6g of the protrusion 6, and is fixed with a screw. Then, the protrusions 6 are connected to the engaging portions 6 on both sides.
e is engaged with the mounting grooves 4a and 4b of the spin-drying/washing tub 4, and the upper end of the upper engaging portion 6g is pressed from above by attaching the balance weight 5, so that it is not pulled out from the inner wall of the spin-drying/washing tub 4. It is firmly fixed and cannot be removed. Since the stepped portions 6d and 6k of the protrusion 6 correspond to the side wall thickness 4g and the bottom wall thickness 4h of the frames 4c and 4d, respectively, their surfaces are formed in a smooth shape.

Now, when doing laundry, the protrusion 6 rotates intermittently in conjunction with the dewatering/washing tub 4 to generate a complicated water flow to pass the washing liquid through the laundry, and the protrusion 6 causes the laundry to rotate. As a result, collision with the protrusion 6 and frictional movement between the laundry items occur, and in conjunction with the synergistic effect with the water flow action, effective cleaning can be achieved. At this time, the frame 4
Since the surface shapes and joints of c, 4d and the protrusions 6 are made to be smooth, there is no risk of damaging the laundry, and the protrusions 6 are firmly fixed to withstand the reaction force of the laundry and can be dehydrated. There is no risk of slight vibrations caused by driving, etc.

According to the above embodiment, the protrusion 6 can be inserted from the top of the dewatering/washing tub 4 during the assembly process and then firmly fixed together with the attachment of the balance weight 5, and the assembly process can be simplified. can do.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and instead of the frame on the side of the dewatering/washing tub, a frame may be provided below, or instead of the frame, a recess directly in the dehydrating/washing tub may be provided. Alternatively, an engagement hole may be provided. Further, various modifications are possible, such as not providing an engaging portion on the upper part of the protrusion, but instead providing a protrusion on the lower surface of the balance weight so that the upper surface of the protrusion can be brought into pressure contact.

As described above, the present invention involves fitting a protrusion from above into the mounting groove formed in the dehydration/washing tub, and
With a simple structure in which this is fixed irremovably by attaching a balance weight, it is possible to provide a washing machine with both dehydration and dehydration that is easy to assemble.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention, in which Figure 1 is a longitudinal cross-sectional view of the entire structure, Figure 2 is a cross-sectional view of the main part of the dehydration/washing tub, and Figure 3 is a view of the protrusions. The perspective view and FIG. 4 are sectional views of essential parts of the balance weight. In the drawing, 4 is a dehydration/washing tub, 4a and 4b are mounting grooves, 5 is a balance weight, 6 is a protrusion, and 6e
indicates an engaging part.

Claims (1)

[Scope of utility model registration request] A washing operation is performed by intermittently rotating a dewatering/washing tub which is equipped with a balance weight at the top opening and a protrusion on the inner wall surface, and the protrusion is
A washing machine for dehydration and washing, characterized in that the protrusion is fitted from above into a mounting groove formed in the washing and dehydration tub, and the upper part of the protrusion is fixed irremovably by mounting the balance weight.