Drum-type washing machine
A drum type washing machine, drum technology, applied to other washing machines, washing devices, textiles and papermaking, etc., can solve the problems of performance degradation, inability to transmit the motor 20, and faster circumferential speed, etc.
Active Publication Date: 2012-05-16
PANASONIC CORP
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Problems solved by technology
However, as in the conventional example, when the pulley on the drive side is the motor shaft, since the diameter of the motor shaft is small, the circumferential speed becomes high, so the gap between the V-shaped groove 42 of the belt 38 and the V-groove 43 of the motor shaft 39 sliding (skidding)
Therefore, the rotation of the motor 20 cannot be accurately transmitted to the rotary drum 33
As a result, there is a problem that the performance in the washing process and the dehydration process is reduced.
Method used
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[0022] figure 1 It is a longitudinal cross-sectional view of the drum type washing machine in embodiment of this invention.
[0023] like figure 1 As shown, the front-loading washing machine of this embodiment has a water tank 32 inside the washing machine main body 31, and a rotary drum 33 is pivotally supported in the water tank 32. The outer peripheral wall of the rotary drum 33 is provided with a plurality of small holes 41 for draining water during the spin-drying operation, and the inner peripheral wall is provided with a plurality of laundry stirring protrusions 36 . The laundry stirring protrusions 36 provided on the rotary drum 33 agitate the laundry by low-speed forward rotation and reverse rotation (for example, 50 rpm) in the washing process, and high-speed unidirectional rotation (for example, 1000 rpm) in the dehydration process. Centrifuge the moisture from the clothes.
[0024] Moreover, the rotating drum 33 is rotationally driven by the mechanism shown be...
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A drum-type washing machine of the present invention includes a water tank supported in a washing machine main body, a rotary drum supported in the water tank, a motor fixed to an outer bottom portion of the water tank, a driving pulley provided on one end of a motor shaft of the motor, a rotation shaft having one end fixed to the rotary drum , a driven pulley securely installed on the other rotation shaft end, and a belt transmitting rotation of the motor to the driven pulley. A waterproof cover covering around the driving pulley is fixed to the motor. Thus, an unusual noise occurring due toa sliding friction between the driving pulley and the belt can be prevented from dispersing to the outside, and slipping can be prevented from occurring due to water attached to a sliding part between the driving pulley and the belt.
Description
technical field [0001] The present invention relates to a structure of a drive pulley and a belt of a motor for driving a rotary drum of a drum-type washing machine. Background technique [0002] Conventionally, as a structure for driving the rotary drum of a front-loading-type washing machine, for example, Japanese Patent Laid-Open No. 2009-78056 (hereinafter, referred to as "Patent Document 1") discloses a structure that is formed from a structure fixed to a water tank. The rotation of the motor is transmitted from the drive pulley on the motor shaft of the motor outside the bottom or from the drive pulley fixed to the motor shaft via the belt to the driven pulley directly connected to the rotating drum. [0003] Below, use Figure 4 The structure of the conventional drum-type washing machine described in Patent Document 1 will be described. Figure 4 It is a vertical cross-sectional view of a conventional front-loading washing machine. [0004] like Figure 4 As shown, t...
Claims
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IPC IPC(8): D06F37/30
CPCD06F37/30
Inventor 寺井谦治八木功一山本胜规松冈真二三木由誉
Owner PANASONIC CORP