JPH09285689A - Washing machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a washing machine with improved safety, which does not cause a large increase in cost with a simple configuration. SOLUTION: A dewatering tub 7 for accommodating a dewatering basket provided in an outer box 4 of a washing machine and an opening 17 of a cover 16 above the dewatering tub 7 are opened / closed and locked by a locking part 31 when closed. An inner lid 18 and a dehydrating lid 19 that opens and closes so as to cover the inner lid 18 are provided. The inner lid 18 has a tip end portion that is adjacent to the lock member 33 of the engaging portion 31 and is vertically slidable. When the dehydration lid 19 is closed, the locking member 43 is provided on the lower side and suppresses the unlocking movement of the locking portion 33 of the locking portion 31 when the dehydration lid 19 is closed. When the lid 19 is opened, the locking member 43 is slid upward so that the locking member 33 can be unlocked, so that the engaging claw 32 of the locking member 33 can be removed from the engaged edge 39 of the cover 16. The inner lid 18 can be opened by removing it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine having a dehydrating tub which is rotatably accommodated in a dehydrating basket and whose upper opening is opened and closed by a lid.

[0002]

2. Description of the Related Art Conventionally, for example, in a two-tub type washing machine in which a washing tub and a dewatering tub in which a dewatering basket is rotatably provided inside are housed in a washing machine body, an inner lid for opening and closing an upper opening of the dewatering tub is used. And a dehydration lid are rotatably provided. When the dehydration lid is opened during the dehydration operation, the drive device for rotating the dehydration basket at a high speed is cut off in synchronization with the movement of the dehydration lid, and the brake device for forcibly braking the rotation of the dehydration basket operates. It is like this. Further, the engagement portion provided between the front end of the dehydration tub and the handle portion of the inner lid is engaged so that the inner lid is closed, and the inner portion of the handle portion is opened. It is possible to take out the laundry from the dehydration basket by releasing it while keeping it open and further opening the inner lid.

However, in the above prior art,
If you want to store the maximum amount of laundry in the dehydration basket for dehydration during long-term use with the brake system exhausted, use the dehydration lid. Even if the drive device is opened and the brake device is operated by opening the drive device, there is a problem that it takes a considerable time to stop the dehydration basket.

In consideration of safety in such a state, it has been considered to add a lock mechanism so that the dehydration lid and the inner lid are not opened while the dehydration basket is rotating.

However, in order to prevent the dehydration lid and the inner lid from being opened by providing a lock mechanism, for example, an electric lock for locking the dehydration lid and the inner lid so that the dehydration lid and the inner lid cannot be opened unless the dehydration basket has a predetermined rotation speed or less. It requires a mechanism, a rotation speed detection means for detecting the rotation speed of the dehydration basket, and a control means for operating the lock mechanism while the detected rotation speed is higher than a predetermined rotation speed. The number of points increases, the assembly becomes complicated, and the cost may increase significantly. Therefore, it is desired to realize a washing machine with improved safety without causing a significant increase in cost with a simple configuration.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and an object of the present invention is to provide an inner lid locking mechanism so as to prevent the inner lid from being opened accidentally. By providing the washing machine, it is possible to provide a washing machine with improved safety without causing a significant increase in cost with a simple configuration.

[0007]

In the washing machine of the present invention, a dehydration tub provided in the main body of the washing machine, a dehydration basket rotatably accommodated in the dehydration tub, and an upper opening of the dehydration tub are opened and closed. In addition, an inner lid having an engaging portion that engages with the dehydration tub when closed, and a dehydrating lid that opens and closes so as to cover the inner lid, wherein the inner lid is adjacent to the engaging portion in the vertical direction. When the dehydration lid is closed, it is positioned on the lower side to prevent the locking part from being unlocked from the dehydration tub, and when the dehydration lid is opened, it is slid upward to form the dehydration tub. It is characterized by having a locking mechanism having a locking member that enables the unlocking of the Open and close the dehydration basket stored in the What comprises an inner lid having a locking portion for sometimes engaging with the dehydration tub and a dehydration lid which opens and closes so as to cover the inner lid, wherein an upper opening of the dehydration tub is provided between the dehydration tub and the inner lid. A locking tool having a locking claw provided at an edge portion and biased toward the inside of the opening, and a locked portion formed on the inner lid with which the locking claw engages when the inner lid is closed. It is characterized in that a locking mechanism is provided.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

First, a first embodiment will be described with reference to FIGS. 1 is a perspective view, FIG. 2 is a circuit diagram, FIG. 3 is a rear view showing a back plate removed, FIG. 4 is a partial top view showing a part of the back plate, and FIG. FIG. 7 is a cross-sectional view of an essential part showing a lid switch operating part of the lid, FIG. 6 is a cross-sectional view of an essential part showing a rod operating part of the dehydration lid, and FIG.
8 is a perspective view of the locking mechanism, FIG. 8 is a cross-sectional view of the locking mechanism, FIG. 9 is a cross-sectional view taken along arrow XX in FIG. 8, and FIG. 10 is a locking operation of the locking mechanism. And FIG. 11 is a cross-sectional view for explaining the unlocking operation of the locking mechanism.

1 to 11, a washing machine 1 is constructed by providing an operation panel 5 on the rear portion of the upper end of an outer box 4 in which a main body 2 is joined on a base plate 3, and inside the main body 2. A washing tank 6 and a dehydration tank 7 are provided side by side. An agitator (not shown) is provided in the inner bottom of the washing tank 6, and the agitator is driven by the washing motor 8 provided on the base plate 3 near the outer bottom of the washing tank 6 to drive the pulleys 9a, 9b. Also, it is adapted to be rotationally driven via the belt 10. The operation panel 5 is provided with a washing timer 11, a dehydration timer 12, a water level adjusting knob 13, and a water flow adjusting knob 14.

The dewatering tank 7 is constructed such that a dewatering basket 15 having a large number of dewatering holes (not shown) formed therein is rotatably housed therein, and a cover 16 is attached to the upper part thereof. The cover 16 is formed with an opening 17 for putting laundry in and out of the dehydration basket 15,
This opening 17 has an inner lid 18 made of synthetic resin, and the inner lid 18
It is adapted to be opened and closed by a dehydration lid 19 which covers the above. That is, the inner lid 18 is pivotably supported by inserting the hinge pin 20a protruding to the side portion on the rear base end side into the hinge hole 20b formed in the cover 16 so that the inner lid 18 can be opened and closed. The hinge pin 21a of the hinge portion 21 provided on the rear side of the base end is attached to the hinge receiver 21b provided in the operation panel 5 so that the hinge pin 21a is pivotally supported and can be opened and closed.

The dewatering basket 15 rotatably housed in the dewatering tank 7 is connected to a rotating shaft 23 of a dewatering motor 22 arranged on the base plate 3 near the outer bottom of the dewatering tank 7 for dewatering. Driven by the motor 22, it rotates at high speed. Then, in order to forcibly stop the rotation of the dehydration basket 15, a brake device 24 that operates in conjunction with the opening / closing movement of the dehydration lid 19 shown by arrow A is directly connected to the rotation shaft 23 of the dehydration motor 22. The brake device 24 rotates the brake lever 26 by an urging force of a spring (not shown) on the outer peripheral portion of the brake drum 25 directly connected to the rotary shaft 23 of the dehydration motor 22,
The braking operation is performed by pressing the brake shoe 27. When the dehydration lid 19 is opened, the brake lever 26 is rotated to perform the braking operation. When the dehydration lid 19 is closed, the braking state is released and the dehydration is performed. The rotation of the basket 15 is not restricted.

The opening / closing of the dehydration lid 19 and the braking operation of the brake device 24 are interlocked with each other by engaging the upper end of the hinge portion 21 which rotates as shown by arrow B with the opening / closing of the dehydration lid 19 with the arrow C. As shown in FIG. 2, the operation is performed via a rod-like body 28 that moves up and down, and a wire mechanism 29 in which one end is connected to the lower end of the rod-like body 28 and the other end is attached to the brake lever 26. Further, the lid switch 30 arranged in the operation panel 5 is opened and closed by the movement of the hinge portion 21 shown by the arrow B when the dehydration lid 19 is opened and closed. Power is cut off. Therefore, when the dehydration lid 19 is opened, the dehydration motor 22 is disconnected from the power source, and the braking device 24 forcibly brakes the rotation of the dehydration basket 15.

On the other hand, between the front end portion of the inner lid 18 and the front side edge of the opening 17 of the cover 16, the inner lid 18 is locked to the cover 16 so as not to be opened. A portion 31 is provided, and a lock member 33 having an engaging claw 32 at a lower end is elastically deformed at the tip portion of the inner lid 18.
Are provided and integrally molded. This lock member 33 is
Further, a handle 37, which is formed in an arch shape so as to be provided with an inner opening 35 and has a flange 36 provided on an upper portion by bending a part of the arched portion outward, is provided above the upper surface of the inner lid 18. Be prepared to extend to. The cover 16 has a lock member 3 when the inner lid 18 is closed.
3 has a substantially rectangular lock hole 38 into which the lower portion of the lock hole 38 is inserted.
Has an engaged edge 39 to be engaged with and two projections 40 are provided on the inner surface of the front wall.

Further, the lock member 33 of the inner lid 18 includes
Locking mechanism 4 for holding the locked state by the locking portion 31
1 is provided. The locking mechanism 41 is the lock member 3
A pair of L-shaped guides 42 formed so as to project to the outer surface of the guide member 3, and a locking member 43 that is guided by the guides 42 and penetrates the inner opening 35 to be slidable in the vertical direction.
It has. The locking member 43 has a flat plate-like knob 44 formed on the upper end portion thereof in an outer shape substantially the same as the inner peripheral shape of the flange 36 portion of the inner opening 35, and a flat plate-like sliding plate portion 45 extending downward from the knob 44. Has a guide 4 at the side end.
A stopper 46 for restricting a sliding range is projected to an intermediate portion of the sliding plate portion 45 which is slidably contacted with the second plate 2, and a stopper 47 is formed at a lower end portion thereof. Reference numeral 48 is a rib formed on the lower surface of the front portion of the dehydration lid 19.

When the inner lid 18 is closed in the direction of arrow Da, the lower part of the lock member 33 is inserted into the lock hole 38 so that the rear inclined wall surface is slidably contacted, and the engaging claw 32 of the lock member 33 is locked. The inner lid 18 is locked to the cover 16 by engaging with the engaged edge 39 of. When the dehydration lid 19 is further closed in the direction of the arrow Aa, the rib 48 on the lower surface of the dehydration lid 19 pushes the knob 44 of the locking member 43 down to substantially the same position as the handle 37 as shown by the arrow Ea, and the knob 44 causes the flange 36 to move. The outer peripheral portion fits into the inner peripheral shape of the portion so as to substantially abut. In this state, the knob 44 of the locking member 43 is further added.
When the member tries to move downward from the position of the handle 37, the stopper 46 comes into contact with the guide 42 and the downward movement is restricted. At the same time, the sliding plate portion 45 of the locking member 43 is inserted between the lower portion of the lock member 33 inserted into the lock hole 38 and the projection 40 on the inner surface of the front wall of the lock hole 38 so as to abut both of them. To be done. By inserting the locking member 43, the engaging claw 32 and the lock hole 38 of the lock member 33 are inserted.
The movement in the direction for releasing the engagement with the engaged edge 39, that is, the movement for releasing the locking of the locking portion 31 is suppressed.

On the other hand, when the inner lid 18 is opened, first the dehydration lid 19 is opened, and then the knob 44 is held and the retainer 4 is held.
7 to the guide 42 until the locking member 43 is moved to the arrow Eb.
Then, the sliding plate portion 45 inserted between the lower portion of the lock member 33 and the protrusion 40 on the inner surface of the front wall of the lock hole 38 is pulled out as shown in FIG. After that, the handle 37 of the lock member 33 is tilted backward as shown by the arrow F so that the elastically deformable portion 34 is deformed, and the engaged edge 39 to the engaging claw 32 are pulled.
And the inner lid 18 is rotated in the direction of arrow Db to open the lower part of the lock member 33 while pulling out the lower part of the lock member 33 from the lock hole 38.

Since this embodiment is constructed as described above, when the dehydration lid 19 is opened while the dehydration operation is being performed, the lid switch 30 is turned off and, at the same time, the rotation of the dehydration basket 15 is forced by the brake device 24. Braking operation is performed. Next, the inner lid 18 is opened and the laundry is taken out from the dehydration basket 15. The inner lid 18 is simply a handle 37.
Even if the engaging claw 32 is tilted rearward to remove the engaging claw 32 from the engaged edge 39, the engaging claw 32 does not come off, and the locking member 43 needs to be pulled out before that. Then, while the dehydration lid 19 is opened and the pulling operation of the locking member 43 and the operation of tilting the handle 37 backward are performed, the rotation of the dehydration basket 15 is stopped or becomes a predetermined rotation number or less, and the subsequent washing is performed. The risk that the rotating dehydrating basket 15 and the like will come into contact with the hands when picking up items is reduced. Alternatively, the operator also has the opportunity to confirm whether or not the dehydration basket 15 is stopped by performing the above-described double operation when opening the inner lid 18, and carelessly during the rotation of the dehydration basket 15. It is possible to prevent the inner lid 18 from being opened.

As described above, by providing the locking mechanism 41, in particular, the number of parts used is not greatly increased, the assembly is not complicated and the cost is not significantly increased, and the safety is simple and inexpensive. Can be improved.

Next, a second embodiment will be described with reference to FIGS.
This will be described below. The present embodiment is configured in the same manner as the above-described first embodiment except for the engaging portion and the locking mechanism of the inner lid. 12 is a top view of an essential part, FIG. 13 is a cross-sectional view taken along the line YY in FIG. 12, and FIG. 14 is a cross-sectional view shown for explaining the unlocking operation of the locking mechanism. FIG. 15 is a perspective view, FIG. 15 is a top view of a main part in the modified embodiment, FIG. 16 is a cross-sectional view shown for explaining an engaging portion in the modified embodiment, and FIG. 17 describes a locking mechanism in the modified embodiment. It is sectional drawing shown in order to do.

12 to 17, the inner lid 51 is provided between the front end portion of the inner lid 51 and the front side edge portion of the opening 17 formed in the cover 53 on the upper portion of the dehydration tank 52. An engaging portion 54 for engaging with the cover 53 is provided so as not to open the cover 53, and the inner lid 51 has an engaging claw 55 having a lower end with an inclined surface in the front-rear direction formed at the tip thereof. The lock member 56 is integrally formed with the elastically deformable portion 57. Further, the lock member 56 is provided with a handle 58 extending upward from the upper surface of the inner lid 51. Further, the cover 53 is formed with a substantially rectangular lock hole 59 into which the lower portion of the lock member 56 is inserted when the inner lid 51 is closed. The lock hole 59 is engaged with the engaging claw 55 at the lower end of the rear inclined wall. It has a mating engaged edge 39.

Further, between the lock member 56 of the inner lid 51 and the cover 53, a locking mechanism 60 for maintaining the locked state by the locking portion 54 is provided. Locking mechanism 6
Reference numeral 0 indicates a locking hole 61 formed in the lower portion of the lock member 56 and opening to the side, an operation hole 62 formed on the front side adjacent to the lock hole 59, and a front portion of the lock hole 59. An insertion hole 63 formed so as to correspond to the locking hole 61 of the lock member 56 when the inner lid 51 is closed on the inner surface of the wall, and one end of the attachment member 64 provided on the lower surface near the operation hole 62 of the cover 53. And a locking tool 65 to which the part is attached.
The locking tool 65 has one end that is attached to the attachment member 64 at one end of the elastically deformable portion 66 that is formed in a substantially U-shape, penetrates the insertion hole 63 at the other end, and has a tip end that is a lock hole. It has a locking claw 67 extending into 59 and an operating lever 68 penetrating the operation hole 62 and extending to the upper surface side of the cover 53.
7 is provided with an inclined surface having an acute tip on the upper side, and by elastically deforming the elastically deforming portion 66 such as moving the operating lever 68 forward and backward, the locking claw 67 is inserted into the lock hole 59. Is configured to enter and exit.

By closing the inner lid 51, the lower portion of the lock member 56 is inserted into the lock hole 59 so that the rear inclined wall surface of the lock hole 59 is slidably in contact with the inclined surface at the lower end, and the lock member 56 is engaged. The interlocking claw 55 engages with the engaged edge 39 of the lock hole 59 to lock the inner lid 51 to the cover 53. Further, when the lower portion of the lock member 56 is inserted into the lock hole 59, the inclined surface of the lower end of the lock member 56 is brought into sliding contact with the upper inclined surface of the locking claw 67 to elastically deform the elastic deformation portion 66. The locking claw 67 is retracted. When the engaging claw 55 engages with the engaged edge 39, the insertion hole 63 and the locking hole 61 face each other, and the retracting locking claw 67 is urged by the elastically deforming portion 66 and pushed out to engage. The tip of the stop claw 67 engages with the locking hole 61, and the locking mechanism 60 locks the inner lid 51.

On the other hand, when opening the inner lid 51, first, the dehydration lid 19 is opened, and then the operating lever 68 of the locking tool 65 is retracted while elastically deforming the elastically deforming portion 66, and the tip end portion of the locking claw 67 is moved. And the engagement of the locking hole 61 with. While maintaining the released state of the engagement by the locking claw 67, the handle 58 of the locking portion 54 of the inner lid 51 is tilted rearward, and the engagement between the engaging claw 55 and the engaged edge 39 is released. Rotate the lid 51 to open it.

Since this embodiment is constructed as described above, the inner lid 51 cannot be opened by unlocking only the locking portion 54 of the inner lid 51, as in the first embodiment. ,
It is necessary to unlock the locking portion 54 while unlocking the operating lever 68 of the locking tool 65 of the locking mechanism 60. The locking mechanism 60 is unlocked after the dehydration lid 19 is opened. During the operation and the unlocking operation of the locking portion 54, the rotation of the dehydration basket 15 is stopped or becomes a predetermined rotation number or less, and safety is improved even when the laundry is subsequently taken out. Alternatively, the operator also has the opportunity to confirm whether or not the dehydration basket 15 is stopped by performing the above-described double operation when opening the inner lid 51, and carelessly during the rotation of the dehydration basket 15. It is possible to prevent the inner lid 51 from being opened. Then, also in this embodiment, the same effect as that of the above-described first embodiment can be obtained.

Further, the locking portion and the locking mechanism may be provided at different positions as in the modified embodiment shown in FIGS. That is, between the front end of the inner lid 71 and the front edge of the opening 17 formed in the cover 73 at the upper portion of the dehydration tank 72, the cover 73 is engaged so as not to open the inner lid 71. An inner lid 71 is provided with a locking portion 74 for stopping.
A locking member 75 having an engaging claw 55 at the tip thereof.
Is provided integrally with an elastically deformable portion 57. Further, the cover 73 is formed with a lock hole 76 having a substantially square-shaped engaged edge 39 into which the lower portion of the lock member 75 is inserted when the inner lid 71 is closed.

Further, between the lock member 75 of the inner lid 71 and the cover 73, a locking mechanism 60 for holding the locked state by the locking portion 74 is provided at different positions near the locking portion 74. It is provided. The locking hole 61 of the locking mechanism 60 is formed in the downward side wall 77 provided on the front side of the inner lid 71, and the operation hole 62 and the insertion hole 63 are respectively the locking holes 61.
Corresponding to the above, the cover 73 is formed.

Then, by closing the inner lid 71, the lower part of the lock member 75 is inserted into the lock hole 76 so that the rear inclined wall surface of the lock hole 76 is in sliding contact with the inclined surface of the lower end, and the lock member 75 is engaged. The interlocking claw 55 engages with the engaged edge 39 of the lock hole 76 and the inner lid 71 is locked to the cover 73. At the same time, the lower tip of the downward side wall 77 of the inner lid 71 is brought into sliding contact with the upper inclined surface of the locking claw 67, so that the elastically deformable portion 66.
The engaging claw 67 is retracted so as to elastically deform.
Then, when the insertion hole 63 and the locking hole 61 face each other, the retracted locking claw 67 is urged by the elastic deformation portion 66 and pushed out, and the tip end of the locking claw 67 engages with the locking hole 61. Then, the inner lid 71 is locked by the locking mechanism 60.

On the other hand, when opening the inner lid 71, first, the dehydration lid 19 is opened, and then the operating lever 68 of the locking tool 65 is retracted while elastically deforming the elastically deforming portion 66, and the tip end portion of the locking pawl 67 is moved. And the engagement of the locking hole 61 with. The grip 58 of the locking portion 74 of the inner lid 71 is tilted rearward while maintaining the disengaged state by the locking claw 67, and the engagement claw 55 and the engaged edge 39 are disengaged from each other. Rotate the lid 71 to open it.

Since this modification is constructed as described above, the same operation and effect as those of the second embodiment can be obtained.

[0031]

As is apparent from the above description, according to the present invention, it is possible to improve safety without causing a large increase in cost with a simple structure.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a circuit diagram according to the first embodiment of the present invention.

FIG. 3 is a rear view showing the back plate according to the first embodiment of the present invention with the back plate removed.

FIG. 4 is a partial top view showing a partially cutaway view of the first embodiment of the present invention.

FIG. 5 is a sectional view of an essential part showing a lid switch operating portion of the dehydration lid according to the first embodiment of the present invention.

FIG. 6 is a sectional view of an essential part showing a rod operating portion of the dehydration lid according to the first embodiment of the present invention.

FIG. 7 is a perspective view of the locking mechanism according to the first embodiment of the present invention.

FIG. 8 is a sectional view of the locking mechanism according to the first embodiment of the present invention.

9 is a sectional view taken along line XX in FIG.

FIG. 10 is a sectional view shown for explaining the locking operation of the locking mechanism according to the first embodiment of the present invention.

FIG. 11 is a cross-sectional view shown for explaining the unlocking operation of the locking mechanism according to the first embodiment of the present invention.

FIG. 12 is a top view of a main part according to the second embodiment of the present invention.

13 is a sectional view taken along the line YY in FIG.

FIG. 14 is a sectional view shown for explaining an unlocking operation of the locking mechanism according to the second embodiment of the present invention.

FIG. 15 is a top view of a main part according to a modification of the second embodiment of the present invention.

FIG. 16 is a cross-sectional view shown for explaining an engaging portion according to a modification of the second embodiment of the present invention.

FIG. 17 is a cross-sectional view shown for explaining a locking mechanism according to a modification of the second embodiment of the present invention.

[Explanation of symbols]

 2 ... Main body 7, 52, 72 ... Dehydration tank 15 ... Dehydration basket 16, 53, 73 ... Cover 17 ... Opening 18, 51, 71 ... Inner lid 19 ... Dehydration lid 31, 54, 74 ... Engagement portion 32, 55 ... Engaging claw 33, 56, 75 ... Lock member 35 ... Inner opening 37 ... Handle 38, 59, 76 ... Lock hole 39 ... Engaged edge 41, 60 ... Engaging mechanism 42 ... Guide 43 ... Engaging member 44 ... Knob 45 ... Sliding plate portion 61 ... Locking hole 62 ... Operation hole 63 ... Insertion hole 65 ... Locking tool 66 ... Elastically deforming portion 67 ... Locking claw 68 ... Operating lever

Claims (2)

[Claims] 1. A dehydration tub provided in a main body of a washing machine, a dehydration basket rotatably accommodated in the dehydration tub, an upper opening of the dehydration tub, and an opening of the dehydration tub for locking the dehydration tub when closed. An inner lid having a locking portion, and a dehydration lid that opens and closes so as to cover the inner lid, wherein the inner lid is provided adjacent to the locking portion so as to be vertically slidable, and When the dewatering lid is closed, it is positioned on the lower side to prevent the locking portion from being unlocked from the dewatering tub, and when the dewatering lid is opened, it is slid upward to be locked with the dewatering tub. A washing machine comprising a locking mechanism having a locking member that enables release. 2. A dehydrating tub provided in a main body of a washing machine, a dehydrating basket rotatably housed in the dehydrating tub, an upper opening of the dehydrating tub, and an upper opening for locking the dehydrating tub when closed. An inner lid having a locking portion, and a dehydration lid that opens and closes so as to cover the inner lid, wherein the dehydration tub and the inner lid are provided at the upper opening edge of the dehydration tub. Locking device having a locking claw that is biased toward the inside of the opening and a locked portion that is formed in the inner lid and that engages with the locking claw when the inner lid is closed. A washing machine having a stop mechanism.