JPH0350877Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a washing machine equipped with a dehydrating device for general household use, and particularly relates to the structure of a dehydrating basket and a brake drum.

Conventional technology Conventionally, the dewatering basket used in this type of washing machine is made by winding a substantially flat iron plate into a cylindrical shape, with the end surfaces of both sides partially overlapped and welded by spot welding, etc., and then made by deep drawing. It is common that the outer periphery of the bottom cover is fixed by spot welding or the like. Dehydration baskets made of thin-walled steel plates like this are strong, and the internal volume can be used more effectively than dehydration baskets made of plastic, etc., and the wheel effect ensures stable rotation even during startup. Things were done.

Problems that the invention aims to solve However, in recent years, the market needs for washing machines with larger capacity and space saving have increased, and the diameter of the dehydrating basket has become larger. The diameter of the opening of the water tank cannot be made large, and as a result, the unbalance of the clothes, etc. placed in the dehydration basket causes the dehydration basket to swing when it starts up, causing continuous collisions with the side walls of the dehydration tank. It was hot. This phenomenon not only reduces the squeezing rate of clothing, but also poses a danger in that it also leads to an increase in temperature due to continuous low rotation of the motor. The cause of these unbalanced dehydration baskets is that the weight of the overlapping parts of the dehydration basket barrels increases as the diameter increases, and the inertia force increases in proportion to the square of the radius. It was a balance.

The present invention solves these conventional problems and provides a washing machine that can be started in a good condition.

Means for Solving the Problems In order to achieve the above objectives, the washing machine of the present invention has the following features:
A dewatering basket having a plurality of water holes is pivotally supported via a dehydrating shaft to a motor having a brake drum. A washing machine that has a brake drum with a stripped section and a bolt that fixes the motor shaft in this section.

Effect With the above configuration, the unbalance amount of the overlapping portion of the dehydration basket is offset by the unbalance amount of the brake drum, and rotation in a good balance can be obtained.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. In FIG. 1, a water tank 3 having a washing tank (not shown) and a dehydration tank 2 is attached to an outer tank 1, and a panel box 4 and a switch plate 5 for storing a lid switch etc. (not shown) are installed in the upper part. Operation plates 7 each having a printed circuit board 6 mounted thereon to be operated are fixed. Reference numeral 8 denotes an upper lid rotatably supported on a shaft 9, and has a handle 10. Reference numeral 11 denotes a dewatering hatch to cover the opening above the dehydrating tank 2, and an inner lid 12 is attached thereto. 13
is a cylindrical dehydration basket made of iron plate or the like, with a curled part 14 arranged at the top, a plurality of water holes 15 formed in a part of the side wall, and an outer peripheral part 16 welded or the like at the bottom. It has a substantially deep-drawn bottom cover 17 that is welded. On the other hand, the rotational force of the motor 20, which is elastically supported by a suspension 19 on a part of the pedestal 18 mounted below the outer tank 1, is applied to the brake drum 21 and the dewatering shaft 2.
2. The water is transmitted to the dehydration basket 13 via the coupling A23. A buffer rubber 24 is located below the dehydration tank and has a seal member 25 and a bearing 26, and is fixed to a water seal by a mounting plate 27 to hold the dehydration shaft 22 in a water seal. Reference numeral 28 denotes a brake mounting plate mounted on the upper part of the motor 20, which is energized and held by a spring (not shown) and has a brake shoe 29 on the brake plate 3.
0 is rotatably held. Reference numeral 31 designates a locking section provided at the rear of the top lid 8, which is engaged with one end of an operating lever 32 that is engaged with a part of the water tank 3. Reference numeral 33 denotes a wire mounting plate that is screwed and fixed into a recess 34 provided below the dehydration tank 2 with a tatsu pin screw 35, and a flexible tube 37 is passed between it and a guide A 36 fixed to the brake mounting plate 28, and the inner wire is 38 are slidably connected to each other, one end of the inner wire 38 is held by the operating lever 32, and the other end is held by the brake plate 30, and the brake plate 30 is interlocked with the opening and closing operation of the top cover 8 to apply the brake. be.

FIG. 2 is an exploded perspective view showing the attachment of the dehydration basket and the brake drum, etc., where 39 is the overlapping part of the barrel of the dehydration basket 13, and 40 is the bolt 42 which is attached to the upper part of the brake drum 21 through an insulating sheet 41 made of an insulating material. 43 is a washer made of an insulating material, 44 is a tightening bolt A that fixes the dewatering shaft 22, and 45 is a lock nut A. Reference numeral 46 indicates a cut-out portion provided in a part of the brake drum 21, into which a tightening bolt B47 for fixing the motor shaft is screwed, and reference numeral 48 indicates a lock nut B. FIG. 3 is a plan view of the dehydration basket seen from above, showing the overlapped portion 39 of the dehydration basket 13 and the stripped portion 4 of the brake drum 21.
6 are positioned in substantially the same direction with respect to the rotation axis direction. In the figure, by decreasing the unbalance amount with respect to each rotation axis so as to cancel it out, it is possible to suppress the oscillation phenomenon caused by rotation and realize good starting characteristics of the dewatering basket. Here, the positional deviation θ in the rotational direction of the overlapped part of the brake drum and the dehydration basket is approximately
Up to 120°, and if it becomes larger than this, the effect will be halved.

Effects of the invention As is clear from the above embodiment, the overlapping part of the dehydration basket barrel and the thinned part for tightening the motor shaft of the brake drum are arranged parallel to the rotating shaft, thereby causing an imbalance in the rotating body. reduce the amount,
We can provide large-capacity, space-saving washing machines that are required in recent years.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the dewatering side of a washing machine according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same main part, and FIG. 3 is a plan view of the main part. 13... Dehydration basket, 21... Brake drum, 3
9...overlapping part, 46...meat stealing part.

Claims (1)

[Scope of utility model registration request] A dewatering basket having a plurality of water holes is pivotally supported via a dehydrating shaft to a motor having a brake drum, and the dehydrating basket is formed into a cylindrical shape by overlapping the ends of a single plate, and the overlapping part side A washing machine that has a brake drum part that is located in the area where the brake drum is located, and a bolt that fixes the motor shaft in this part.