JPS5930119B2 - Stirring type washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention transmits the continuous rotation operation of a continuous rotation part such as an electric motor through a transmission mechanism, and converts the reversal operation of a reversal operation part such as an agitation blade into a washing machine by reversing the agitation blade. The present invention relates to improvements in agitation type washing machines, and particularly to improvements in a transmission mechanism that transmits motion from a continuous rotation section to a reversal operation section.

First, a conventional stirring type washing machine of this type will be explained.

Generally, in this type of stirring type washing machine, as shown in Fig. 1, stirring blades 2 are installed in a water tank 1, and washing is performed by reversing the stirring blades 2 using an electric motor 3 as power. As shown in Figures 1 and 2, in the stirring type washing machine,
The mechanism is such that the power of the electric motor 3 is transmitted from the electric motor 3 to the stirring blade 2 via the pulley 4, gear 5, gear 6, crank 7, rod 8, arm 9, and stirring shaft 10, and the stirring blade 2 is reversed. was.

In this mechanism, as shown in FIG. 2, the stirring blade 2 is driven by an electric motor 3 to rotate the crank 7 in one direction, thereby causing the rod 8 to reciprocate, and the arm 9 to reciprocate within one constant angle θ degree. However, in such a structure, the inversion angle θ of the arm 9 is restricted to around 90 degrees, so in order to invert the stirring blade 2 to more than 0 degrees, the angle θ shown in FIGS. 3 and 4 is used. However, there is a problem in that the speed increasing gear 11 needs to be engaged with the stirring shaft 10 and enlarged, and the loss of transmitted power is large.

The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an agitating type washing machine that has a simplified structure and reduces transmission power loss.

Hereinafter, the structure of the present invention will be described in detail with reference to FIG. 5 and subsequent drawings showing an embodiment of the present invention, and parts that are the same as those of the conventional example will be described using the same symbols.

5 and 6 show the structure of one embodiment of the present invention, and FIGS. 7 to 9 show the structure of other embodiments.

In Figures 5 and 6, 1 is a water tank, 2 is a stirring blade, and 3 is a water tank.
is an electric motor, 4 is a pulley, 5 and 6 are gears, 1 is a crank, 10 is a stirring shaft, 12 is a foil fixed to the stirring shaft 10, and 13 is approximately U-shaped with one end rotatably locked to a crank 7. The crank rod 14 is a belt wrapped around the foil 12 one or more times and stretched between both ends of the crank rod 13.

As shown in FIGS. 5 and 6, the present invention has a stirring shaft 1.
0, a flexible belt 14 made of resin or synthetic rubber is wrapped around the foil 12,
By reciprocating this belt 14, the foil 12
In the embodiment shown in FIGS. 5 and 6, one end of the crank rod 13 is rotatably locked to the crank I, and the stirring blade 2 is inverted. It is characterized by a structure in which both ends of the belt 14, which is wrapped around the belt one or more times, are fixed to the crank rod.

In the above mechanism, when the electric motor 3 operates, its rotation is
It is transmitted to the crank 7 via the pulley 4, gear 5, and gear 6, and when the crank I rotates, the reciprocating motion of the crank rod 13 causes the wheel 1 to be transmitted via the belt 14.
2 moves in reverse, and the stirring blades 2 move in reverse together to perform washing.

With the above structure, the belt 14 always applies a rotational force to the wheel 12 in the tangential direction, and since no speed increasing gear or the like is used, the loss of transmitted power can be reduced and the structure can be simplified.

The embodiment shown in FIG. 7 differs from those shown in FIGS. 5 and 6 in that the belt 14 is provided with unevenness a, and the foil 12 is also provided with unevenness so that these fit together, thereby preventing mutual slippage. This is how it was done.

In the embodiment shown in FIG. 8, one end of the belt 14 is fixed to the crank rod 13, and the other end is rotatably locked to the crank 7 together with the crank rod 13, so that the belt 14 is stretched between both ends of the crank rod 13. It was established.

As described above, the present invention converts the continuous rotation operation of a continuous rotation part such as an electric motor into the reversal operation of a reversing operation part such as an agitation blade through a transmission mechanism, and provides an agitation type washing machine that performs washing by reversing the agitation blade. , a wheel to be reversed is provided on the reversing operation part side, a crank is provided on the other continuous rotation part side, one end of a substantially U-shaped crank rod is rotatably locked to this crank, and a wheel is provided between both ends of the crank rod. By wrapping the belt around the foil one or more times and causing the crank rod to reciprocate by rotating the crank, the restriction on the reversal angle can be overcome with an extremely simple configuration, and the transmission power can be reduced. Loss can also be reduced, which is extremely useful in practical use.

[Brief explanation of the drawing]

Figure 1 is a diagram that simply shows the structure of a conventional agitating type washer, Figure 2 is a view taken along arrow A-A in Figure 1, and Figure 3 is a simplified diagram of the structure of another conventional agitating type washer. Drawing shown in 4th
The figures are a view taken along the line B-B in FIG. 3, FIG. 7 is a partially enlarged perspective view of FIG. 5, and FIG. 8 is a perspective view of another embodiment of the present invention corresponding to the section taken along the line CC in FIG. 2: stirring blade, 3: electric motor, 7: crank, 10: stirring shaft, 12: foil, 13: crank rod, 14: belt.

Claims (1)

[Claims] 1. In an agitation washing machine that converts the continuous rotation operation of a continuous rotation part such as an electric motor into the reversal operation of a reversal action part such as an agitation blade through a transmission mechanism, and washes by reversing the agitation blade, the above-mentioned reversal action part side is A wheel to be reversed is provided, a crank is provided on the other side of the continuous rotation part, one end of a substantially U-shaped crank rod is rotatably locked to this crank, and a belt is attached to the above-mentioned foil between both ends of the crank rod. An agitating type washer characterized by being wound around the rod more than once and tensioned, and reciprocating the crank rod by rotating the crank.