JPS5910834B2 - dehydration washing machine - Google Patents

Description

[Detailed Description of the Invention] Generally, when a dehydrating washing machine is used in a bathroom, the moisture from the steam enters the ball bearing housing through the opening for mounting the brake mechanism, and this moisture pivots the dehydrating shaft. As the moisture entered the ball bearing, the moisture condensed into water droplets due to temperature changes, and the water droplets sometimes traveled along the inner wall of the housing and entered the ball bearing.

Furthermore, when used outdoors, water droplets splashed from the installation surface could enter the ball bearing housing through the opening for mounting the brake mechanism, and then into the ball bearing. In view of the above problems, the present invention is designed to prevent moisture and water droplets from entering the ball bearing 10 even if they enter the ball bearing housing.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, 1 is the main body of the dehydrating washing machine, 2 is a washing and dehydrating tank having a large number of dehydrating holes 3 on the side wall, a rotating blade 4 is provided at the center of the bottom, and 15 is a balance weight 5 at the top opening.
is fixed. Reference numeral 6 denotes an outer tank in which the washing and dehydration tank 2 is rotatably installed, 7 a washing shaft having the rotary blade 4 fixed to the upper end, 8 a coupling fixed to the bottom of the washing and dehydration tank 2, and 9 The washing/dehydration tub 2 is rotated by a hollow spindle attached to the coupling 8.

10 is a bottom plate attached to the bottom of the outer tank 6, a hemispherical seat 11 is formed on the outer periphery of the bottom plate 10, and a spherical body 12 is rotatably supported 25 on this seat 11. There is.

Reference numeral 13 denotes an upper support fitting fixed to the upper four corners of the main body 1, and has a hemispherical seat 14, and a spherical body 1 is mounted on this seat 14.
5 is rotatably supported, and the upper end of a rod 16 is inserted and fixed into this spherical body 15.

In addition, the lower part of the rod 16 is connected to the n spherical body 12 of the bottom plate 10.
A spring 18 is interposed between the receiving portion IT provided at the lower end of the rod 16 and the spherical body 12. Reference numeral 19 denotes an upper ball bearing 35 whose outer periphery is attached to the lower surface of the bottom plate 10 with bolts 20 and nuts 21, and this upper ball bearing 19 pivotally supports the dewatering shaft 9 at its inner periphery. The upper ball bearing 22 is held, and the inner circumference further extends upward to form a holding part 23, and in this holding part 23, there is an oil seal 24 that watertightly partitions the dewatering shaft 9 and the bottom of the outer tank 6. is held.

Reference numeral 25 denotes the upper ball bearing, and the lower ball bearing whose outer peripheral portion is attached to the housing 19 with the bolts 20 and nuts 21.
In the housing, this lower ball bearing housing 25 holds a lower ball bearing 26 that pivotally supports the dehydration tank 9 at its inner peripheral portion.

Also, in the hollow part of the dehydration shaft 9, there is an oil seal 27 for holding the washing shaft 7, an upper bearing metal 28, and a lower bearing metal 2.
9 is press-fitted and fixed. A washing pulley 30 is attached to the lower end of the washing shaft 7 by a pin 31, and this washing pulley 30 is connected to a motor 32 fixed to the lower side of the bottom plate 10.
The motor is driven to rotate via a motor (33) and a belt (34).

Reference numeral 35 denotes a helical Clatsuna spring wound between the outer periphery of the boss portion 30' of the washing pulley 30 and the lower end outer periphery of the dehydration shaft 9. It engages with a cylindrical operating barrel 38 having a large number of teeth 37 .

Reference numeral 39 denotes a lever receiver attached to the side wall of the lower ball bearing housing 25, and a lever pin 40 is attached to this lever receiver 39.
A clutch lever 41 is rotatably attached through the clutch lever 41, and a clutch pawl 42 that engages and disengages from the teeth 37 of the operating barrel 38 is provided at the tip of the clutch lever 41.

Reference numeral 43 denotes a brake wheel located within the lower ball bearing housing 25 and fixed to the dewatering shaft 9. The braking mechanism related to this brake wheel 43 is omitted because it has the same structure as the conventionally known structure.

Further, the side wall of the lower ball bearing housing 25 is provided with an opening 25a for attaching a brake mechanism. To explain the operation in the above configuration, during washing, the motor 32 is driven to rotate the rotor blade 4 via the motor pulley 33, belt 34, washing pulley 30, and washing shaft 7, and the washing liquid is poured into the outer tub 6. The laundry placed in the washing/drying tub 2 is washed by the water flow generated by the rotation of the rotary blades 4. In this case, the clutch spring 35 is loosened by engaging the clutch pawl 42 of the clutch lever 41 with the teeth 37 of the operating barrel 38, so the rotation of the washing pulley 30 is not transmitted to the dewatering shaft 9. The washing and dehydrating tank 2 is currently stopped. Also, during dehydration, the clutch claw 42 of the clutch lever 41 should be moved to the operating barrel 3.
8, the clutch spring 35 is tightened, and the rotation of the washing pulley 30 is transmitted to the washing and dehydration tub 2 via the dehydration shaft 9, and the laundry is dehydrated by centrifugal force. . Reference numeral 44 denotes grease sealed between the upper end surface of the upper ball bearing 22 held by the upper ball bearing housing 19 and the oil seal 24. In addition to preventing this, the presence of the grease 44
Even if water leaks from the oil seal 24, water can be prevented from entering the upper ball bearing 22, and therefore the upper ball bearing 22 can be prevented from rusting.

Reference numeral 45 denotes a bearing cover fixed to the lower part of the upper ball bearing housing 19 with screws 46 through a gap with the lower end surface of the upper ball bearing 22. A contacting ring-shaped felt 47 is provided.

The felt 47 of the T2 lever is held in a recess 48 formed in the bearing cover 45. Furthermore, grease 49 is sealed between the bearing cover 45 and the lower end surface of the upper ball bearing 22.
Therefore, when the dehydrating washing machine is used in a bathroom or outdoors, even if moisture or water drops enter the lower ball bearing housing 25 through the opening 25a for mounting the brake mechanism, they will not enter the upper ball bearing 22. can be prevented. Furthermore, since a felt 47 is provided between the bearing cover 45 and the dewatering shaft 9, it is possible to prevent the grease 49 from flowing downward, and the oil of the grease 49 can enter inside this felt 47. Therefore, moisture can be reliably prevented from entering, and the dehydration shaft 9 and felt 47 can be
The rotational sliding resistance with the grease 49 is also reduced by the oil of the grease 49. It is also possible to use an oil seal instead of the felt 47, but since the oil seal is made of rubber and has high rotational and sliding resistance, in the embodiment of the present invention, it is soft and Felt 47 with low rotational and sliding resistance is used. Furthermore, bearing covers 50 and 51 are fixed to the lower ball bearing housing 25 in correspondence with the upper and lower end surfaces of the lower ball bearing 26.
, 51 and the dehydration shaft 9 or the brake wheel 43, and the bearing cover 50
, 51 and the upper and lower end surfaces of the lower ball bearing 26 are grease 54,
55 is enclosed.

Therefore, this provides the same effects as the upper ball bearing housing 19. As is clear from the above embodiments, according to the present invention, a bearing cover is fixed to the ball bearing housing in correspondence with the end face of the ball bearing, a felt is provided between the bearing cover and the dewatering shaft, and Grease is sealed between the cover and the end face of the ball bearing, so even if moisture or water drops enter the ball bearing housing through the opening for mounting the brake mechanism when the dehydrating washing machine is used in a bathroom or outdoors. It is also possible to prevent moisture and water droplets from entering the ball bearing.

As a result, the ball bearings will not rust and produce abnormal noises during dehydration rotation, and the durability of the ball bearings can also be improved.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional view of a dehydrating washing machine showing an embodiment of the present invention. 2...Washing/dehydration tank, 4...Rotary blade,
6...Outer tank, 9...Dehydration shaft, 10...
...Bottom plate, 19...Top ball bearing...Using, 22...Top ball bearing, 23...Holding section, 24...Oil seal , 25...
・Lower ball bearing...Using, 25a...Opening,
26... Lower ball bearing, 43... Brake wheel, 44, 49, 54, 55... Grease, 45, 50, 51... Bearing cover, 47,
52, 53...Felt.

Claims (1)

[Claims] 1. An outer tank that rotatably houses a washing and dewatering tank, a bottom plate attached to the bottom of the outer tank, and an upper ball bearing housing that is attached to the bottom plate and holds an upper ball bearing that pivotally supports the spindle. and a lower ball bearing housing that is attached to this upper ball bearing housing and holds a lower ball bearing that pivotally supports the dewatering shaft, and further has an opening for mounting a brake mechanism, and a lower ball bearing housing that is located within this lower ball bearing housing. a brake wheel fixed to the dewatering shaft, a bearing cover is fixed to the upper ball bearing housing with a gap between the lower end surface of the upper ball bearing, and felt is provided between the bearing cover and the dewatering shaft. , and sealing grease between the bearing cover and the lower end surface of the upper ball bearing, and extending the upper part of the upper ball bearing housing upwardly to hold an oil seal that watertightly partitions the dewatering shaft and the bottom of the outer tank. A dehydrating washing machine in which a holding part is integrally formed and grease is sealed between an upper end surface of the upper ball bearing and an oil seal.