JPH0373198A - Washing and dehydration machine - Google Patents

Abstract

PURPOSE:To prevent sound from being caused by a fact that a rotary tank supporting body is swung upward and downward at the time of dehydration, and a stress is given to each part by constituting the washing so that a large diameter part is provided on the part positioned in the upper part of the upper bearing in the upper shaft body, and also, a case is fitted and attached to the outside periphery of the lower part of the upper shaft body, and the upper bearing is inserted and held between the large diameter part of the upper shaft body and the case. CONSTITUTION:The part positioned in the upper bearing 40 in the upper shaft body 33, that is, a dehydrating tank 31 whose diameter is larger than a cylinder shaft 32 becomes a large diameter part of the upper shaft body 33, and an inner ring 40a of the upper bearing 40 is inserted and held by the dehydrating tank 31 and a boss part 35a of a body case 35. Accordingly, even if a hollow shaft part 37 is fitted to an inner race 41a of the lower bearing 41 so as to be movable upward and downward, since the inner race 40a of the upper bearing 40 is inserted and held by the dehydrating tank 31 and the boss part 35a of the body case 35, it does not occur that a rotary supporting body 38 moves upward against both the bearing 40, 41. Accordingly, it is not feared that the rotary tank supporting body 38 is swung upward and downward, generates a sound, and gives a stress to each part.

Description

DETAILED DESCRIPTION OF THE INVENTION EObject of the Invention (Industrial Field of Application) The present invention relates to a dehydrating and washing machine with an improved rotary tub support structure.

(Prior art) In a dehydrating and washing machine, the support structure of the rotary tub and t, '
c. A deceleration mechanism that decelerates the rotation of the motor during washing and transmits it to the stirring body is housed in the lower part of the center of the upper shaft that is connected to the rotating tank, and connects the case and the F section shaft. There is a rotating tank support structure 11 in which an upper shaft body and a lower shaft body are supported by an upper bearing and a lower bearing. An example of this support structure εL, te, JP-A-56-12
January 1591: There is something shown in the report.

As shown in FIG. At the same time, a dehydration drive shaft 6 that can be rotated by a motor during dehydration is fitted in the lower part of this case 3, and the dehydration drive shaft 6 is rotated by the The rotary tank support body 70') is connected to the dehydration tank shaft 2, which is the upper shaft, and the dehydration drive shaft 6, which is the lower shaft, by an upper bearing 8 and a lower bearing 9, respectively.
The rotary tank 1 is supported so as to be rotatable at the same time. In this case, the upper boss part] ()a protruding from the MIO of the case 3 and the F part boss part 3h protruding from the F surface 1 of the case 3 are placed on the outside of the dehydration tank 2 and the dehydration drive axis, respectively. I'm trying to get it to fit. The F section boss section 3a is brought into contact with the inner ring 9a of the military bearing 9, so that the thrust load of the rotary tank 1 is received by the R section bearing 9.

(Problems to be Solved by the Invention) In the above conventional configuration, the upper boss portion 1. The distance in the axial direction between the soil end surface of Oa and the lower end surface of the Y section boss section 3a is determined by the height of the peripheral wall of the case 3, the thickness dimension of the MIO, and the protrusion height of the upper boss section 10a and the lower boss section 3a. There is a situation in which the dimensions differ from gear case to gear case due to manufacturing errors and assembly errors. Therefore, the distance between the upper bearing 8 and the lower bearing 9 is made slightly larger by taking into account the error in the axial distance between the upper end surface of the peak boss portion 10a and the dot end surface of the upper and lower boss portions 3a. When the lower boss part 3a is brought into contact with the inner ring 9a of the upper bearing 9, the round boss part 1Oa comes into contact with the inner ring 8a of the upper bearing 8. , a slight gap G is created between the upper boss portion 10a and the upper bearing 7ε.

In the conventional case where such a gap G inevitably occurs,
Under the influence of vibration of rotation 1fjl during dehydration, the rotating tank support 7 swings up and down by the distance G with respect to both bearings 8.9, producing a sound. In fact, since the rotary tank support 7 not only simply swings in a straight line, but also rotates, the swing becomes complicated and generates even more noise.

The complicated vibrations of the rotary tank support 7 as described above give stress to various parts, which leads to a low F of durability.

The present invention has been made in view of the above circumstances.

The first objective is to provide a dehydrating and washing machine that can prevent the rotary tub support from moving downward relative to the bearing.

[Structure of the Invention] (Means for Solving the Problems) The dewatering/washing machine of the present invention has an agitator (7) that decelerates the rotation of the motor at the time of washing at the top part of the upper shaft body connected to the co-rotating tank. A case in which a deceleration mechanism for transmitting a signal is disposed in a case 5 and a lower shaft body are connected to form a rotary tank support 5, and the upper shaft body and lower shaft body are supported by an upper bearing and a partial bearing. A large-diameter portion is provided in the portion of the upper shaft located above the upper bearing, and the case is fitted to the lower outer periphery of the upper shaft, and the large-diameter portion of the upper shaft and It is particularly noteworthy that the upper bearing is sandwiched between the upper bearing and the case.

(Function) Since the upper bearing is sandwiched between the upper shaft body and the case, the rotating tank support body does not move up and down with respect to the bearing.

Therefore, the rotary tank support does not swing up and down during dewatering.

Rainbow Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In Fig. 4, 21 is an outer box, and there is a water receptacle WJ2 inside.
2 is provided and is elastically supported via a hanging rod mechanism 23 so as to be swingable. Reference numeral 24 denotes a rotating tank which serves as both a washing and dewatering tank, which is disposed inside the water receiver H922, and a large-diameter pulsator 25, which is an agitator for washing, is arranged at the inner bottom of the tank, which rotates at a relatively low speed. ,ing. Reference numeral 26 denotes a power control mechanism, which decelerates and transmits the synchronous rotational force of the motor 27 to the pulsator 25 during dehydration, and also transmits it to the rotary tank 24 and the pulsator 25 during dewatering, so that both rotate simultaneously. Therefore, as shown in FIG. 4, a reduction gear 28. It has a built-in clutch mechanism 29, brake machine IJ130, etc. That is, 31
is a dehydration shaft fixed to the rotary tank 24; this dehydration shaft 31 is fitted onto the upper end side of a cylindrical shaft 32, and together with this cylindrical shaft 32 constitutes an upper shaft body 33. 34 is a case of the speed reducer 28, and this case 34 is composed of a main body case 35 and a lid 36 fixed to the lower surface of this main body case 35.

In the case 34, a boss portion 35a integrally protruding from the upper surface of the main case 35 is fitted onto the lower end side of the cylindrical shaft 32.

Further, a hollow shaft portion 37 as a lower shaft body is integrally formed in the lid 36. By connecting the case 34 and the hollow shaft portion 37 to the upper pouch body 3 in this manner, the rotary tank lawn holding body 3R is completed.

The rotary tank support 38 is supported by inserting the cylindrical shaft 32 of the stop shaft 33 into a two-part bearing 40, which is a ball bearing or a ball bearing attached to the outer case 39 of the power control mechanism 16, and supports the hollow shaft. The portion 37 is inserted and supported by a lower bearing 41 which is a ball bearing attached to the outer case 39. In this case, the portion of the shaft body 33 located at the t portion of the upper bearing 40, that is, the dehydration shaft 31 having a larger diameter than the cylindrical shaft 32, is attached to the upper shaft body 33.
The inner ring 40a of the support 40 is made up of 11 parts including the dewatering shaft 31, the main body case, the hub 35 and the boss part 25a.
Therefore, even if the hollow shaft portion 37 is fitted into the inner ring 41a of the lower bearing 41 so that it can move up and down, the dehydration shaft 31 and the boss portion 35a of the main body case 5 Since the inner ring 40a of the upper bearing 40 is sandwiched therebetween, the rotary tank support 38 is prevented from moving up and down with respect to both the bearings 40 and 41.

Now, a planetary gear mechanism 42 as a speed reduction mechanism is housed in the case 34 of the speed reduction device 28. An output shaft 43 of the speed reducer 28 is inserted into and supported by the cylindrical shaft 32 via a bearing 44, and the pulse motor 25 is fixed to the upper end of the output shaft 43. In addition, the input 1dt45 of the reduction gear 28 is connected to the hollow shaft portion 37 via a bearing 46.
A driven puller 48 with a sleeve 47 attached to it is fitted to the lower end of this manual shaft amount 45, and a belt 50 is hung between this driven pulley 48 and the drive pulley 49 of the motor 27. I'm passing it on. 51 is the clutch mechanism 2
With the clutch spring 9, the hollow shaft part 37 and the sleeve 4
7, and the lower end engages with the clutch case 42. Reference numeral 53 denotes a brake band on the side of the brake machine 30, which is wrapped around the outer periphery of the main body case 35 of the reduction gear 28 as a brake drum ε. 54 is axis 5
It is a lever that can be moved simultaneously around clutch case 5.
Clutch side body engaging portion 5 that engages with a large number of ratchet pawls 52a provided on the outer periphery of clutch case 52 to restrain rotation of clutch case 52.
4a, and a brake-side engaging portion 54b that engages with a locking piece 53a bent at the other end of the brake band 51 to restrain rotation of the C-brake throat 53.

On the other hand, in FIGS. 1 and 2 showing the specific structure of the a-star gear mechanism 42, 56 is an internal gear disposed inside the main body case 35 in a non-rotating state, and 57 is attached to the upper end of the human power shaft 45. A sun gear 58 is formed integrally, that is, by machining teeth 57a on the circumferential surface of the upper end of the human-powered shaft 45, for example, four sun gears 58 mesh with both the internal gear 56 and the sun gear 57. The planetary gear 58 has circular holders 59 and 60 fitted to its upper and lower ends, and a shaft 61 inserted through the holders 59 and 60 is fixed to upper and lower brackets 62 and 63. In this case, both the upper and lower brackets F62 and 63 are fixedly connected to the tile by caulking the lower ends of the bosses 52a protruding from the upper bracket 52, and at the time of caulking, the teeth 56 of the internal gear 56
The internal gear 56 can be moved by using dust to provide a slight vertical movement margin between the upper end of the a and the JEI □-shaped rib 56b on the inner circumference of the lower part and between the upper holder 59 and the step 63a of the lower bracket 63. ahii car 58 and upper and lower brackets 62.63
It has been made into a unit. When assembling, the dehydration shaft 1 is fixed and integrated with the main body case 35 via the cylindrical shaft 32, and the dehydration shaft 43 is inserted and supported by the cylindrical shaft 32. brake band 5
3 is wound around the shaft 36, and a human power shaft 45 is inserted and supported in the hollow shaft portion 37 of the length 36. Then, the internal gear 56 which is unitized as described above. The a star gear 58 and the upper and lower brackets 62 and 63 are inserted into the main body case 35.

Through this intermediary, a serration hole 64 pre-formed in the center of the upper bracket 62, which is a rotating body that supports the planetary gear 58, fits into a serration m65 pre-formed at the lower end of the output shaft 43, and the two are connected. Ru. After this,
Insert the sun gear 57 of the human power shaft 45 into the center hole 63a of the lower bracket 63 so as to mesh with the planet gear 58, and screw the screw 66 with the M, 36 against the bottom surface of the main body case 35.
Fix it by. In addition, the same stop of the internal gear 56 is the same as that of the internal gear 5.
This is done by fitting the 11b portion 36a protruding from the upper surface of the bulge 36 into the four portions 67 formed at the bottom [hj]. Also,
Yu, star tooth jii 58 f holder 60 is large intestine gear 57
Is the outer diameter smaller than the root circle diameter of the idler gear 58 in order to make it easier to push in from below? Furthermore, the h holder 59 is set to be larger than the diameter of the free X11 gear 58, and the teeth 56 of the internal gear 56 are set I7.
:: Abrasion prevention is achieved by rolling contact with the circumferential surface of #).

Next, the operation of the 4L configuration will be explained. Figure 4 shows wash n:i
This shows the state in which the lever 54 is in the clutch side retaining part 5.
4a ensures that the clutch lease rotates 520 times, and the brake side engaging portion 54b restricts the same rotation of the brake band 53. Therefore, as is well known, in order to prevent the rotation of the motor 27 from being transmitted to the hollow shaft portion 37 due to the clutch spring 51 being unable to be tightened, the brake spring 51 is prevented from being transmitted to the hollow shaft portion 37. During washing, the motor 27 rotates 101 times in this state, and the rotation is transmitted from the driven pulley 48 to the reduction gear 2.
8, the sun gear 57 rotates. Then, the first tooth 4i 58 makes a planetary motion around the first and third stopper tooth 11i57, and along with this planetary motion, the two F brackets 62 and 63 rotate integrally. The rotation of both brackets 62°6 causes the output ITo 43 to rotate and drive the pulsator 25 to rotate at a low speed.

・On the other hand, during dewatering, the lever 54 rotates and the 'C both engaging portions 5
Clutch case 52 and brake band 53 by 4a and 54b. In order to release the restraint, the clutch spring 51 is tightened to its peak in the well-known manner.
The brake of the main body case 35 and thus the rotating tank 24 can be completely released. During dehydration, the motor 27 rotates in one direction in this state, and the rotation is transmitted from the driven pulley 48 not only to the human shaft 45 but also to the hollow shaft portion 37 via the saw clutch spring 51. and the valve setter 25 rotate at high speed as one unit.

According to the above configuration, the dehydrated ldl 31 color main body case 3
Since the inner ring 40a of the upper bearing 40 is sandwiched between the boss portion 35aε of the lower bearing 41, the hollow shaft portion 37
．． Even if the rotating tank support 38 is fitted so as to be movable in the IIT, the movement of the rotating tank support 38 in the vertical direction h is limited to the bearing 4.
(-) can be used to release the restriction. For this reason, [1] the one-rotation one-force support 38 is connected to both bearings 40 and 41 (9, so that it does not move up and down), so that the rotation m support 38 moves up and down during dewatering. Turn the sound to light 1. There is no risk of stress or stress on various parts, and low WA 4a operation provides i'iJ performance and a long life.

[Structure of the Invention] As explained above, in the present invention, since the upper bearing is sandwiched between the upper shaft body and the case, the rotating tank support does not move up and down with respect to the bearing, and this This eliminates the risk of the rotating tank support swinging up and down during dehydration, which may cause noise or stress on various parts. It can produce excellent effects.

[Brief explanation of drawings]

Figures 1 to 4 show a single-cusp embodiment of the present invention.
FIG. 1 is a longitudinal sectional side view of the main parts, FIG. 2 is a longitudinal sectional side view of the deceleration device, FIG. 3 is a horizontal sectional view thereof, and FIG. 4 is a longitudinal sectional side view of the dewatering/washing machine. Moreover, FIG. 5 is a longitudinal side view showing the support structure of a conventional rotating tank. In the figure, 24 is a rotating tank, 25 is a pulsator stirrer), 2
7 is a motor, 28 is a reduction gear, 31 is a dewatering shaft, 32 is a tube sleeve, 33 is an upper shaft body, 34 is a case, 35 is a main body case, 36 is a weight, 38 is a rotary tank support body, 40 is an upper bearing , 41 is the lower bearing, 42 is the planetary heavy mechanism (reduction mechanism),
43 is an output shaft, 45 is an input shaft, 56 is an internal gear, 57 is a sun gear, 58 is a planetary gear, and 62.63 is a bracket.

Claims (1)

[Claims] 1. A case that houses a deceleration mechanism for decelerating the rotation of the motor and transmitting it to the agitator during washing is housed in the lower part of the upper shaft connected to the rotating tank.The case and the lower shaft are connected to support the rotating tank. in which the upper shaft body and the lower shaft body are supported by an upper bearing and a lower bearing, wherein a portion of the upper shaft body located above the upper bearing is provided with a large diameter portion; A dehydrating/washing machine characterized in that the case is fitted onto the lower outer periphery of the shaft body, and the upper bearing is sandwiched between the large diameter portion of the upper shaft body and the case.