JPH0464391A - Drum type washing machine - Google Patents

Abstract

PURPOSE:To make an agitation disk in the state of locking or unlocking, according to purposes, by a method wherein the title machine has a locking device by which a drum and the agitation disk can be locked each other or released, and the engagement of gears is used for the locking of the agitation disk, and one spur gear mounted on the end of a rotary shaft for rotating the agitation disk is engaged with a part of the other spur gear having a straight movement mechanism. CONSTITUTION:By the working of an agitation disk-locking device 109, in a washing process, an agitation disk 107 is in the state of non-rotation, and in a centrifugally draining process, it is in the state of free-rotation. In the agitation disk-locking device 109, the agitation disk 107 is mounted on a rotary shaft 113 for the agitation disk, and a spur gear 114 is mounted on the end of the rotary shaft 113. By the vertical movement of the lock pin 115, which acts as another spur gear engaged with the spur gear 114, the spur gear 114 is engaged or not engaged with the lock tin 115 at an engagement part 116. In this way, the title machine having the agitation disk-locking device of which the structure is simple and small relatively, can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention relates to a drum-type washing machine that performs everything from washing to dehydration or drying in one drum. This invention relates to a drum-type washing machine equipped with a stirring board.

(b) Conventional technology Drum-type washing machines have a structure in which the drum rotates around a horizontal axis, and compared to whirlpool-type washing machines, the amount of water required for washing is small, and the laundry (washing This has the advantage that there is less damage to the clothes that need to be dehydrated and dried.

For this reason, they occupy the mainstream as industrial or business-use washing machines in Japan as well.

On the other hand, most household washing machines in Japan are of the whirlpool type. This is because it is superior to the drum type in terms of washing and mechanical force. The overwhelming popularity of whirlpool washing machines in Japan is the result of their development with a focus on efficiently washing clothes in a short amount of time. However, in recent years, there has been a rapid rise in demands not only for washing efficiency but also for finish quality and damage to laundry.

For this reason, it has become highly conceivable that drum-type washing machines will become widespread in general households in the near future.

However, the efficient washing ability established by the - degree spiral type,
It would be unthinkable in Japan's home appliance industry, which is constantly pursuing multi-functionality and higher functionality, to downgrade the product by replacing it with a drum type. For this reason, even if there is a shift to a drum type, there is still a need for further improvement in washing efficiency.

In view of these circumstances, a drum-type washing machine with a stirring plate was developed that takes advantage of the advantages of both drum-type and whirlpool-type washing machines. In other words, inside the drum that can accommodate laundry,
This is a drum-type washing machine with a stirring plate that is coaxial with the drum and can rotate independently.

(c) Problems to be Solved by the Invention However, such a drum-type washing machine with a stirring plate does not necessarily take advantage of only the advantages of both. For example, if a stirring plate is simply installed inside the drum, the stirring plate will only function as a baffle and will not contribute to increasing mechanical force.

On the other hand, if the stirring plate is brought to an absolute standstill, i.e., moved relative to the drum, the mechanical force will certainly increase, or excessive mechanical force will be applied to the laundry when it moves to the dewatering process, causing the laundry to deteriorate. There is a risk of things breaking.

In the above-mentioned drum type washing machine with a stirring plate, in order to take advantage of the advantages of both the drum type and the whirlpool type, the stirring plate needs to be locked and unlocked according to conditions. That is, during washing, the stirring disk must be completely stopped, that is, rotated relative to the drum, and during dewatering, it must be stopped relative to the drum, or it must be in a freely rotating state.

This invention was made in view of the above circumstances,
The purpose is to provide a drum-type washing machine that is equipped with a mechanism that can lock and unlock the stirring plate according to conditions.

(d) Means and Effects for Solving the Problems This invention comprises a water tank supported within an outer box, a drum rotatably supported within the water tank and capable of accommodating laundry, and a drum within the drum. A drum-type washing machine comprising an agitator plate supported coaxially and independently rotatable with the drum and capable of locking and unlocking with respect to the drum, the agitator plate being locked by gear meshing. It is.

That is, the drum-type washing machine of the present invention has a stirring plate that is supported coaxially and rotatably independently of the drum within a drum that can accommodate laundry, and that locks a stirring plate that can be locked and unlocked with respect to the drum. In this case, the meshing of gears is used.

Here, the gears are engaged by a spur gear provided at one end of the rotating shaft that rotates the stirring plate, and a part of an internal gear that is engaged with this spur gear and has a linear motion mechanism. is preferable. Further, it is preferable that a part of the internal gear has an arbitrary number of teeth from the number of meshing teeth to the number that does not hinder the linear movement of the internal gear. Further, the linear movement mechanism is capable of reciprocating movement, and either -,
Preferably, in one stop position +h it meshes with a spur gear fixed to the stirring plate, and in the other stop position it is completely separated from the spur gear. The shape, monoyl and pressure angle of the spur gear and internal gear are all arbitrary.

(P) Examples Hereinafter, the present invention will be explained in detail based on the examples shown in the drawings. Note that this invention is not limited to this.

In FIG. 1, the drum-type fully automatic washing machine W has an outer box 11
, a water tank 12 and a drum I3. The aquarium 12 has an aquarium main body +01. Aquarium front plate 103 and aquarium rear plate 104
It consists of Moreover, the drum 13 is a drum body 10.
2. It is composed of a drum front plate 105 and a drum rear plate 106. Immediately behind the drum front plate 105 inside the drum 13, a stirring plate 07 having a circular front face shape is provided so as to rotate coaxially with the drum 13 and independently.

Due to the function of the stirring plate locking device 109, the stirring plate +07 is completely stopped during washing, and freely rotates during spin-drying. The rotational power of Motor III is the belt! 10 and drum pulley 108 to the drum 13.

Note that 112 is a drain port.

In FIGS. 2 and 3 showing details of the stirring plate locking device 109, the stirring plate 107 is connected to the stirring plate rotating shaft 113.
is attached to. There is a spur gear on one end of the stirring plate turning shaft 113! 14 is attached. Spur gear +1
4 is engaged or disengaged at a meshing portion 116 by the vertical movement of a locking pin 115, which is an internal gear that meshes with the locking pin 115.

The stirring plate turning shaft +13 also has two edge bearings +17
- It is rotatably fitted to the drum rotation shaft +19 via +18. The drum rotation shaft +19 is attached to the drum front plate 105, and is further rotatably fitted into a bearing flanz +21 via a ball bearing +20. Bearing flange 121
is fixed to the aquarium front plate +03 via a holder stay 122. +23 is an oil rule for preventing water leakage in the water tank 12. 124 is the stirring plate locking device! 0
9 casing.

In this drum-type fully automatic washing machine W, the drum front plate 1
05 is fixed to the drum 13, so it rotates as the drum 13 rotates. When the locking pin 115 is pulled upward by the actuator, the engaging portion 11
6 is released, and the spur gear 114 becomes free-rotating. Therefore, the stirring plate turning shaft +13 fixed to the spur gear +14 with a spline and the stirring plate +07 attached to the stirring plate turning shaft +13 are both in a freely rotating state.

Therefore, even if the laundry becomes entangled with the agitator plate 107 during spin-drying, the agitator plate 107 is free-rotating relative to both the ram 13 and the water tank 12, so that agitation will not be possible. The washing board 107 will run away and won't damage the laundry.

On the other hand, the locking pin +15 moves downward, and the engaging part +1
When meshing with the spur gear +14 at step 6, the stirring plate +07 is fixed to the water tank 12 because the guide of the locking bottle 115 is integrated with the casing +24. That is, in this case, the stirring plate 107 is in an absolutely stopped state, and as the drum 13 rotates, it rotates in the opposite direction relative to the drum 13.

At the time of washing, in this state, in addition to the beating of the conventional drum-type washing machine, a massaging operation is generated between the washing machine and the stirring plate I07, thereby making it possible to increase the washing efficiency.

In the above embodiment, the reciprocating movement of the locking bin +15 was performed perpendicularly to the rotation axis 113 of the stirring plate, but the same effect can be obtained even if the locking bin +15 is moved horizontally to the rotation axis 113. It is possible. Further, in the above embodiment, an example was shown in which the stirring plate 107 was fixed to the water tank 12, but the drum 107 was fixed to the water tank 12.
3 is also possible with a similar fixing device. Furthermore, if necessary, the structure may be configured to switch between fixing to the water tank 12 and fixing to the drum 13.
This is possible by using multiple devices of the same type.

(f) Effects of the Invention According to this invention, as described above, a spur gear is arranged at one end of the stirring plate turning shaft which rotates independently of the drum rotation shaft, and an internal gear meshing with the spur gear is arranged. By providing gear meshing means such as the above, it is possible to obtain a drum-type washing machine with a relatively simple structure and a compact stirring plate locking device.

[Brief explanation of the drawing]

1 to 3 show one embodiment of the present invention. That is, FIG. 1 is a schematic configuration explanatory diagram of a drum type washing machine;
FIG. 2 is an enlarged explanatory diagram of the main part, and FIG. 3 is an enlarged explanatory diagram of the main part, in which the broken line circular section of FIG. 2 is further enlarged. II...Outer box, 12...Aquarium, 13...Drum, 1...Aquarium body, 2...Drum body, 3...Aquarium front plate , 4... Water tank rear plate, 5... Drum front plate, 6- - Drum rear plate, 7... Stirring board, 8... Drum pulley, 9...・Agitator plate locking device, 0... Belt, 1... Motor, 2... Drain port, 3... Stirring plate rotation axis, 4... Spur gear, 5...Lock pin (internal gear), 6...-Meshing part, 7...Sliding bearing, 8...Sliding bearing, 9... Drum rotating shaft, 0...Ball bearing, 1st WJ +21...-bearing flanone, 122...Holder stay, 123...Oil run rule, 124...K-song.

Claims (1)

[Claims] 1. A water tank supported within an outer box, a drum rotatably supported within the water tank and capable of accommodating laundry, and a drum rotatable within the drum coaxially and independently of the drum. A drum-type washing machine comprising an agitator plate that is supported and can be locked and unlocked from the drum, and in which gear meshing is used to lock the agitator plate. 2. Claim 1 in which the gear meshing is caused by meshing with a spur gear provided at one end of a rotating shaft that rotates the stirring plate and a part of an internal gear that is meshed with this spur gear and has a linear movement mechanism. The drum-type washing machine described. 3. The drum type washing machine according to claim 2, wherein a part of the internal gear has an arbitrary number of teeth from the number of meshing teeth to the number that does not hinder the linear movement of the internal gear. 4. The linear movement mechanism is capable of reciprocating motion and meshes with a spur gear fixed to the stirring plate at one of the stop positions, and is completely separated from the spur gear at the other stop position. The drum type washing machine according to claim 2.