JP2000271382A - Structure for attaching top cover and bottom frame to outer box of washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily separate a top cover from an outer box through one action when a part of plural screws is detached, to improve the workability of disassembly without the need of turning the entire product to a laid-fallen or upside-down state especially for the separation and disassembly of a bottom frame and to secure the effectiveness of material recycle without mixing the screws to plastic which is a material for forming the top cover and the bottom frame at the time of separating the top cover and the bottom frame from the outer box for the top cover attached to the plural parts at the front and back of the upper opening of the outer box by screwing and the bottom frame screwed to the outer box. SOLUTION: In this top cover attaching structure of a washing machine for attaching the top cover 5 by fixing a front part and a rear part to the upper opening edge of the outer box where a spinning tub is disposed, a fixing piece 8 where a screw hole 9 is pierced is projectingly provided on either front part or rear part of the top cover 5 and a weak part by a notch 10 or the like is positioned near the screw hole 9 and formed at the fixing piece 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a top cover and a bottom frame to an outer box of a washing machine.

[0002]

2. Description of the Related Art For example, a one-tub type fully automatic washing machine is shown in FIG.
As shown in FIG. 2, a water tank is swingably suspended in an outer case 1 via a vibration isolator (not shown), and a washing and dewatering tank 2 provided with a rotary blade 3 at the bottom is rotated in the water tank. The top cover 5 having the lid 4 is attached to the upper opening of the outer box 1 and the washing and dewatering tub 2, and the bottom frame 14 is attached to the bottom opening of the box 1.

The top cover 5 is attached to the outer case 1 by providing through holes through which screws pass through the front part and the rear part of the top cover 5, respectively. A screw is inserted through the through hole and the pilot hole, and is fixed to the opening edge of the outer box 1 at two locations, for example, at each of the front and rear sides. In the figure, reference numeral 6 denotes a front panel for closing an opening on the front side of the outer box 1.

Further, in the structure in which the bottom frame 14 is attached to the outer box 1, a fixing piece is raised on the front side of the bottom frame 14, and this fixing piece is brought into contact with a flange projecting from the peripheral edge of the opening on the front side of the outer box 1. The bottom frame 14 is fixed to the flange protruding from the opening on the lower surface of the outer box 1 by screws while being in contact with the frame.

In recent years, it has been desired to reuse materials for the purpose of reducing waste and effectively using materials. In such a washing machine as well, the materials of the washing machine to be discarded are recycled. It is thought that.

In order to reuse the materials, the washing machine is disassembled into parts to some extent, and parts containing valuables and harmful substances are separated and disassembled. It is crushed and classified for each material. By the way, a method of crushing the entire washing machine in a product state, selecting materials to be reused, and separating and separating the materials by type can be considered, but it is difficult with current technology, and crushing is performed. Manual disassembly is required before the process.

In a washing machine, a top cover 5 and a bottom frame 1 are provided.
The material No. 4 is a synthetic resin such as plastic, which is a valuable resource that can be reused. Therefore, when the washing machine is disassembled, the top cover 5 and the bottom frame 14 are replaced with the outer box 1 which is another component to which the top cover 5 and the bottom frame 14 are fixed.
Need to be separated from

In this disassembly, for the top cover 5, the front panel 6 attached to the front of the outer box 1 is removed, and then the screws fixing the top cover 5 to the outer box 1 are removed at two front and rear positions. The top cover 5 is removed from the outer box 1 by two each, and the bottom frame 1
4, on the front side, when the front panel 6 is removed, the screws fixing the bottom frame 14 to the flange protruding toward the front side of the outer box 1 are removed, and further, the bottom frame is 14 is removed by removing the screw fixing the outer case 1 to the outer box 1.

[0009]

In order to reuse the plastic material, which is the material of the top cover 5, it is necessary to prevent foreign matter such as metal from being mixed into this material. Cover 5 and bottom frame 14 in outer box 1
The screws fixed to the top cover must be securely removed, and the work of removing the screws is indispensable. In addition, there are two places for screwing the top cover 5 at the front and back, and two for the bottom frame 14. There are two places on the front side and two places on the bottom side of the outer box 1, and the number of places where the screws are removed is large, requiring time and labor.

Further, as for the separation of the bottom frame 14, it is necessary to remove screws not only on the front side of the bottom frame 14 but also on the lower side of the outer box 1 as described above. It must be done on the side or upside down, and dismantling workability is not good.

An object of the present invention is to solve the inconvenience of the above conventional example, and to a top cover attached to a plurality of places before and after an upper opening of an outer box by screws or a bottom frame screwed to the outer box. When separating the top cover and the bottom frame from the outer box, if some of the screws are removed, the top cover can be easily separated from the outer box with one touch. This eliminates the need to turn the entire product upside down or upside down, improving the workability of disassembly.In addition, screws are not mixed into the plastic that forms the top cover and bottom frame, and the material can be reused. It is an object of the present invention to provide a top cover and a bottom frame mounting structure for an outer box of a washing machine which can ensure the effectiveness.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention firstly sets a top and a rear part by screwing a front part and a rear part to an upper opening edge of an outer box provided with a washing and dewatering tub. In the top cover mounting structure of the washing machine for mounting the cover,
A fixing piece having a screw hole formed in one of the front part and the rear part of the top cover protrudes, and the fixing piece is positioned near the screw hole to form a fragile portion. When separating the cover from the outer box, the side fixed to the outer box with screws via the fixing piece, without breaking the screw if the fragile part is broken while remaining screwed The top cover can be separated from the outer box.

Therefore, the number of places where the screws are removed can be reduced, the time and labor required for disassembly can be reduced, and the disassembly work can be facilitated. In addition, the screws that are not removed will remain attached to the side of the outer box, but if the outer box is made of metal,
Since the material is the same and the material is finally dissolved to reuse the material, there is no problem even if the screw remains on the outer box side.

Second, the fixing piece is suspended downward from the top cover so that when the top cover is broken from the outer box, the screw on the side where the fixing piece is not formed is removed. Then, by pulling up the removed end and turning it 180 degrees to the fixed side, the top cover can be easily rotated with a slight force using this fixed side as a lever, and the fixed piece can be easily Break. Alternatively, when using tools such as nippers, cut the fixing piece at the location of the fragile part,
The work of separating the top cover and the outer box can be performed easily and reliably.

Third, since the fragile portion is a horizontal cutout formed above the screw hole, the top cover can be rotated by the lever action with the screwed portion as a fulcrum, and rises vertically. If it is turned further than it is, the fixing piece is easily broken at the notch above the screwing point. In this state, the screw remains attached to the piece of the fixed piece below the break, so that the screw remains on the outer box side.

Fourthly, the weak portion is a U-shaped thin portion formed around the screw hole so as to surround the screw hole, so that the top cover can be rotated by the lever action with the screwed portion as a fulcrum. Is tilted forward, the fixing piece is broken at the portion of the U-shaped thin portion, and the top cover is separated from the outer box in a state where the peripheral portion of the screw remains in a semicircular shape on the outer box side.

Fifth, the weak portion is formed by forming the fixing piece into a U-shaped cross section having a flange and forming a thin portion by a narrow portion formed in the flange at a position above the screw hole. If the fixed piece is cut with a cutting tool such as a nipper,
The top cover can be separated from the outer box by leaving the screwing point on the outer box side.

Sixth, since the fragile portion is a concave-shaped thin portion formed above the screw hole, if the fixing piece is cut with a cutting tool such as a nipper at the thin portion, the screwed portion can be removed. The top cover can be separated from the outer box by leaving it on the box side. In this case, even if a thin portion is formed on the fixing piece, the thin portion functions as a rib, so that there is no possibility that the strength of the connection with the outer box is reduced.

Seventh, in a structure for attaching a bottom frame to an outer box of a washing machine in which a bottom frame is screwed and fixed to an opening edge at a lower portion of an outer box provided with a washing and dewatering tub, When detaching the bottom frame from the outer box at the time of dismantling of the washing machine by forming a fragile part by protruding a fixing piece with a screw hole in the part and the rear part and positioning it near the screw hole in the fixing piece. Remove only one of the front and rear screws that are fixed to the outer box with screws via the fixing pieces, and break the fragile part while the other side remains screwed. For example, the bottom frame can be separated from the outer box without removing the screws.

Accordingly, the bottom frame can be separated from the outer box without turning the entire product, such as the outer box to which the bottom frame is fixed, upside down or upside down. Time and labor can be reduced, and dismantling work becomes easy. The screw remains attached to the outer box, but if the outer box is made of metal, the material is the same, and the material is eventually dissolved to reuse the material Therefore, no problem occurs even if the screws remain on the outer box side.

Eighth, since the fixing piece projects upward from the bottom frame, when the bottom frame is broken from the outer box,
Remove the screws on either the front or rear part to separate the bottom frame and the outer box, then pull up the end of the outer box on the removed side and turn it in the direction of the fixed piece on the side where the screws are not removed. If it is moved and pulled down, the fixing piece breaks easily at the fragile part. Therefore, the outer frame and the outer box can be easily and reliably separated without turning the outer box over or turning it upside down.

Ninth, since the fragile portion is a horizontal notch formed below the screw hole, the outer box can be knocked down by leverage with the screwed portion as a fulcrum,
The fixing piece can be easily broken at the notch below the screwing point by slightly tilting it. In this state, the screw remains attached to the piece of the fixed piece above the breaking point, so that the screw remains on the outer box side.

Tenthly, since the weak portion is a U-shaped thin portion formed around the screw hole so as to surround the screw hole, the outer box can be rotated by the lever action with the screwed portion as a fulcrum. Is tilted forward, the fixing piece is broken at the portion of the U-shaped thin portion, and the bottom frame is separated from the outer box in a state where the peripheral portion of the screw remains in a semicircular shape on the outer box side.

Eleventh, the weak portion is formed by forming the fixing piece into a U-shaped cross section having a flange and forming a thin portion by the narrow portion formed in the flange below the screw hole. When the fixing piece is cut with a cutting tool such as a nipper, the bottom frame can be separated from the outer box while leaving the screwed portion on the outer box side.

Twelfth, since the fragile portion is a recessed thin portion formed below the screw hole, if the fixing piece is cut at this thin portion with a cutting tool such as a nipper, the screwed portion is removed. The bottom frame can be separated from the outer box by leaving it on the box side. And
In this case, even if a thin portion is formed on the fixing piece, the thin portion functions as a rib, and there is no possibility that the strength of the connection with the outer box is reduced.

[0026]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a top cover showing a first embodiment of a top cover and a bottom frame attaching structure to an outer box of a washing machine of the present invention, and FIG.
8 has already been described, and a detailed description thereof will be omitted. A washing machine in which the top cover and bottom frame mounting structure of the present invention is implemented also swings a water tub in an outer box 1 via a vibration isolator in the same manner as in the prior art, and rotates to the bottom in the water tub. The washing and dewatering tub 2 provided with the wings 3 is rotatably disposed, and a top cover 5 having a lid 4 is attached to the outer box 1 and the upper opening of the washing and dewatering tub 2.

The top cover 5 has a front surface and a rear surface fixed to the outer case 1 with screws 7 respectively. On the rear surface side, two through holes are provided in the top cover 5, and a lower hole provided in the outer case 1 is formed. The screws 7 are inserted through the holes so as to be fixed, and fixed.

For fixing the front side, the top cover 5
A vertically downward elongated fixing piece 8 protrudes from the front surface of the device.
The fixing piece 8 is formed, for example, in the shape of a channel having a U-shaped cross section having a flange 8a, a screw hole 9 is formed near the lower end, and a fragile portion which can be easily broken is formed near the screw hole 9. I do.

FIG. 2 shows a first example of this fragile portion.
A letter-shaped notch 10 was provided.

Then, the screw holes 9 provided in the fixing piece 8 and the pilot holes provided in the outer case 1 are aligned with each other, and the screws 7 are inserted therethrough to fix the front side of the top cover 5 to the outer case 1. .

The strength of the fixing piece 8 alone decreases due to the presence of the fragile portion formed by the notch 10 in the fixing piece 8, but the overall force acting on the top cover 5 is an upward pulling force. In this case, it is only necessary to prevent the top cover 5 from rising upward due to vibration or the like. Since the fragile portion does not reduce the upward pulling force, the top cover 5 is fixed via the fixing piece 8 provided with the fragile portion. Outer box 1
Even if it is fixed to, the strength of the washing machine as a whole does not decrease.

In order to separate the top cover 5 made of a plastic material from the metal outer box 1 when the washing machine is disassembled, first remove the front panel 6 from the outer box 1 and then remove the top cover 5. The top cover 5 and the outer box 1 are separated on the rear side by removing the screw 7 on the rear side, and then the screw 7 fixing the front side via the fixing piece 8 is not removed and the top The rear side of the cover 5 is lifted by hand and turned to raise it to the front side.

At this time, as shown in FIG. 3, the top cover 5 is raised toward the front side with the place where the screw 7 is fixed via the fixing piece 8 as a fulcrum, and is formed above the place where the screw 7 is fixed. The fixing piece 8 is spontaneously broken at the notch 10, which is a fragile portion. Thereby, the top cover 5 and the outer box 1 are separated.

In this case, since the top cover 5 is pulled up by leverage with the screw 7 fixing point as a fulcrum as described above, a large force is not required, and the top cover 5 is made of plastic. , The notch 10 is easily broken only by applying a bending force. In this manner, the front side of the top cover 5 can be separated from the outer box 1 without removing the screws 7.

Screws 7 are still attached to the pieces of the fixing piece 8 remaining on the side of the outer box 1 in the broken state, but the outer box 1 is made of metal and the screws 7 are also made of stainless steel. .
Then, the parts are melted in order to reuse the material. However, since the outer box 1 and the screw 7 are made of the same material, no problem occurs even if they are melted together.

FIG. 4 shows a second example of a fragile portion, in which a thin U-shaped groove is formed on an upper portion of the fixing piece 8 so as to surround a screw hole 9 formed in the fixing piece 8, and a thin portion 11 is formed by the groove. did. As a result, if the screw 7 on the rear side of the top cover 5 is removed as in the case of the first example described above, and the screw 7 on the front side is not removed but is raised forward as shown in FIG. The top cover 5 is removed in a state in which the portion of the thin-walled portion 11 is broken and the fixing piece 8 is broken, and the screw 7 and the pieces of the fixing piece 8 around the screw 7 remain in a semicircular shape on the outer box 1 side. Separate from Box 1.

FIG. 6 shows a third example of the fragile portion. The flange 8a of the fixing piece 8 is cut out in a substantially U-shape above the screw hole 9 to form the flange 8a in a narrow portion. The thin portion 12 is formed by the narrow portion. This allows
In order to separate the top cover 5 from the outer box 1 at the time of dismantling the washing machine, a cutting tool such as a nipper or the like is used on the front side of the top cover 5 without removing the screw 7 without removing the thin portion 12 due to the narrow portion. The fixing piece 8 is cut by using the cutting method. Then, the top cover 5 is separated from the outer case 1 with the screws 7 and fragments of the fixing pieces 8 around the screws 7 remaining on the outer case 1 side.

FIG. 7 shows a fourth example of the fragile portion, which is also the third example.
Similar to the example, the fixing piece 8 is cut using a cutting tool such as a nipper, but a rectangular recess in the front is formed at a position above the screw hole 9, and the rectangular wall-shaped thin portion 13 is formed by the recess. To form Therefore, if the fixing piece 8 is cut at the thin portion 13 with a cutting tool such as a nipper, the fragments of the fixing piece 8 where the screws 7 are fixed remain on the outer box 1 side while the top cover 5 is removed from the outer box 1. Can be separated from

In this case, the thin portion 1 is attached to the fixing piece 8.
Even if 3 is formed, the thin portion 13 functions as a rib, so there is no possibility that the strength is reduced.

FIGS. 8 to 10 show an outer box 1 as a second embodiment.
FIG. 8 shows a mounting structure of the bottom frame 14, wherein a flange 14 a protrudes forward from an upper portion on the front side of the bottom frame 14, and a fixing piece 15 extends upward from the upper surface of the flange 14 a. At the left and right positions. The flange 14
a is a flange 1a protruding from the periphery of the front opening of the outer box 1.
And a front panel 6 for mounting the front panel 6 to close the front opening.

9 and FIG.
As shown in (1), the fixing piece 16 is provided to protrude upward and to the left and right.

Each of the fixing pieces 15 and 16 has a screw hole 9 formed therein, and the fixing piece 15 on the front side is formed in a U-shape with a flange 15a protruding forward from both left and right sides. As a first example of the fragile portion, as shown in FIG.
Was provided.

The fixing piece 16 on the rear side is formed in a thin plate shape projecting upward so as to project slightly rearward from the rear side surface of the bottom frame 14, and is shown in FIG.
As shown in the figure, a V-shaped notch 10 was provided horizontally below the screw hole 9 on the inner surface side.

Then, the screw holes 9 provided in the fixing pieces 15 and 16 are aligned with the pilot holes provided in the outer box 1, and the screws 7 are inserted therethrough to fix the bottom frame 14 to the outer box 1.

In order to separate the bottom frame 14 made of a plastic material from the metal outer box 1 when the washing machine is disassembled, first remove the front panel 6 from the outer box 1,
Remove only one of the screws 7 on the front side or the rear side. When the screw 7 on the front side is removed, for example, the bottom frame 14 is separated from the outer box 1 on the front side, and then the screw 7 fixing the rear side via the fixing piece 16 is not removed, and is kept as it is. In this state, the outer box 1 is moved backward.

At this time, as shown in FIG. 13, the outer box 1 is tilted rearward through the fixing piece 16 with the place where the screw 7 is fixed as a fulcrum, and the fragile portion formed below the place where the screw 7 is fixed. The fixing piece 16 is spontaneously broken at the portion of the notch 10. Thereby, the bottom frame 14 and the outer box 1 are separated.

In this case, since the lowering of the outer box 1 is performed by leverage with the screw 7 fixing point as a fulcrum as described above, a large force is not required, and the bottom frame 14 is made of plastic. , The notch 10 is easily broken only by applying a bending force. Thus, the bottom frame 1
4 can be separated from the outer case 1 without removing the screws 7.

The fixing piece 16 remaining on the side of the outer box 1 in the broken state
The screw 7 is still attached to the fragment of the outer case 1, but the outer box 1 is made of metal and the screw 7 is also made of stainless steel. Then, the parts are melted in order to reuse the material. However, since the outer box 1 and the screw 7 are made of the same material, no problem occurs even if they are melted together. The screw 7 on the rear side is removed, and the fixing piece 1 is on the front side.
It is also possible to separate the bottom frame 14 from the outer box 1 by tilting the outer box 1 forward and breaking the fixing pieces 15 while the 5 remains fixed to the outer box 1.

FIG. 14 shows a second example of the fragile portion, and the fixing piece 1
A U-shaped groove was formed in the lower part of the screw hole 9 formed at No. 5 (the fixing piece 16 is not shown) so as to surround the screw hole 9, and the thin portion 11 is formed by the groove. As a result, as shown in FIG. 15, if the screw 7 on the front side of the bottom frame 14 is removed in the same manner as in the case of the first example described above, and the screw 1 on the rear side is not removed, and the outer box 1 is tilted rearward as shown in FIG. A portion of the U-shaped thin portion 11 is broken and the fixing piece 16 is broken, and the screw 7 and a piece of the fixing piece 16 around the screw 7 remain in a semicircular shape and remain on the outer box 1 side in a state of the bottom frame 14. Is separated from the outer box 1.

FIG. 16 shows a third example of the fragile portion,
The flange 15a of No. 5 is cut out in a substantially U-shape below the screw hole 9, and the flange 15a is formed in a narrow portion, and the thin portion 12 is formed by the narrow portion. Accordingly, in order to separate the bottom frame 14 from the outer box 1 when the washing machine is disassembled, the outer box 1 can be tilted forward without removing the screws 7 on the front side of the bottom frame 14, and the narrow portion can be used. Thin part 12
The fixing piece 15 is broken at the portion. Then, the bottom frame 14 is separated from the outer case 1 with the screws 7 and the fragments of the fixing pieces 15 around the screws 7 remaining on the outer case 1 side. In this case, the fragile portion can be cut using a tool such as a nipper.

FIG. 17 shows a fourth example of the fragile portion, which is also similar to the third example by using a cutting tool such as a nipper.
However, a rectangular recess in the front is formed below the screw hole 9, and the rectangular wall-shaped thin portion 13 is formed by the recess. Therefore, if the fixing piece 15 is cut at the thin portion 13 with a cutting tool such as a nipper, the fragments of the fixing piece 15 where the screws 7 are fixed remain on the outer box 1 side while the bottom frame 14 is removed. Can be separated from

In this case, even if the thin portion 13 is formed on the fixing piece 15, the thin portion 13 functions as a rib, so that there is no possibility that the strength is reduced.

[0053]

As described above, the top cover mounting structure of the washing machine according to the present invention is, first, screwing the front part and the rear part to the upper opening edge of the outer box provided with the washing and dewatering tub. In the top cover mounting structure of the washing machine for mounting the top cover, a fixing piece having a screw hole formed in one of a front part and a rear part of the top cover is protruded, and the fixing piece is positioned near the screw hole. When the top cover is separated from the outer case when the washing machine is disassembled, the side fixed to the outer case with screws via the fixing pieces remains in the screwed state. If the fixing piece is broken at the fragile part with, the top cover can be separated from the outer box without removing the screws, reducing the time and labor required for disassembly, improving not only the workability, but also Use can be made effective.

Secondly, when the top cover is broken from the outer box by removing the fixing piece from the outer box, the screw on the side where the fixing piece is not formed is removed. Then, by pulling up the removed end and turning it 180 degrees to the fixed side, the top cover can be easily rotated with a slight force using this fixed side as a lever, and the fixed piece can be easily Break. Alternatively, when using tools such as nippers, cut the fixing piece at the location of the fragile part,
The work of separating the top cover and the outer box can be performed easily and reliably.

Third, since the fragile portion is a horizontal cutout formed above the screw hole, the top cover can be easily rotated by the lever action using the screwed portion as a fulcrum, and If it is further rotated and lowered from the state where it has risen, the fixing piece is easily broken at the cutout portion above the screwed portion. In this state, the screw remains attached to the piece of the fixed piece below the break, so that the screw remains on the outer box side.

Fourth, the weak portion is a U-shaped thin portion formed around the screw hole so as to surround the screw hole, so that the top cover can be rotated by the lever action with the screwed portion as a fulcrum. If the front cover is tilted forward, the fixing piece is easily broken at the U-shaped thin part, and the top cover is easily separated from the outer box with the screw surrounding part remaining in a semicircular shape on the outer box side .

Fifth, the weak portion is formed by forming the fixing piece into a U-shaped cross section having a flange and forming a thin portion by the narrow portion formed in the flange at a position above the screw hole. If the fixed piece is cut with a cutting tool such as a nipper,
The top cover can be easily separated from the outer box by leaving the screwing points on the outer box side.

Sixth, since the fragile portion is a recessed thin portion formed above the screw hole, if the fixing piece is cut at this thin portion with a cutting tool such as a nipper, the screwed portion is removed. The top cover can be easily separated from the outer box by leaving it on the box side. In this case, even if a thin portion is formed on the fixing piece, the thin portion functions as a rib, so that there is no possibility that the strength of the connection with the outer box is reduced.

Seventh, the structure for attaching the bottom frame to the outer box of the washing machine according to the present invention is a washing machine in which the bottom frame is screwed and fixed to the lower opening edge of the outer box provided with the washing and dewatering tub. In the bottom frame mounting structure to the outer box, a fixing piece having a screw hole formed in the front and rear portions of the bottom frame is protruded, and the fixing piece is positioned near the screw hole to form a fragile portion. Therefore, when the bottom frame is separated from the outer box when the washing machine is disassembled, remove only one of the front and rear screws fixed to the outer box with screws via the fixing pieces, and remove the other side. If the fragile portion is broken while the screw is still screwed, the bottom frame can be separated from the outer box without removing the screw.

Accordingly, the bottom frame can be separated from the outer box without turning the entire product, such as the outer box to which the bottom frame is fixed, upside down or upside down. Time and labor can be reduced, and dismantling work becomes easy. The screw remains attached to the outer box, but if the outer box is made of metal, the material is the same, and the material is eventually dissolved to reuse the material Therefore, no problem occurs even if the screws remain on the outer box side.

Eighth, since the fixing piece projects upward from the bottom frame, when the bottom frame is broken from the outer box,
Remove the screws on either the front or rear part to separate the bottom frame and the outer box, then pull up the end of the outer box on the removed side and turn it in the direction of the fixed piece on the side where the screws are not removed. If it is moved and pulled down, the fixing piece breaks easily at the fragile part. Therefore, the outer frame and the outer box can be easily and reliably separated without turning the outer box over or turning it upside down.

Ninth, since the fragile portion is a horizontal notch formed below the screw hole, the outer box can be knocked down by the lever action using the screwed portion as a fulcrum.
The fixing piece can be easily broken at the notch below the screwing point by slightly tilting it. In this state, the screw remains attached to the piece of the fixed piece above the breaking point, so that the screw remains on the outer box side.

Tenthly, since the fragile portion is a U-shaped thin portion formed around the screw hole so as to surround the screw hole, the outer box can be rotated by the lever action with the screwed portion as a fulcrum. Is tilted forward, the fixing piece is broken at the portion of the U-shaped thin portion, and the bottom frame is separated from the outer box in a state where the peripheral portion of the screw remains in a semicircular shape on the outer box side.

Eleventh, the fragile portion is formed by forming the fixing piece into a U-shaped cross section having a flange and forming a thin portion by the narrow portion formed on the flange below the screw hole. When the fixing piece is cut with a cutting tool such as a nipper, the bottom frame can be separated from the outer box while leaving the screwed portion on the outer box side.

Twelfth, since the fragile portion is a recessed thin portion formed below the screw hole, if the fixing piece is cut at this thin portion with a cutting tool such as a nipper, the screwed portion is removed. The bottom frame can be separated from the outer box by leaving it on the box side. And
In this case, even if a thin portion is formed on the fixing piece, the thin portion functions as a rib, so that there is no possibility that the strength of the connection with the outer box is reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a top cover showing a first embodiment of a top cover and bottom frame mounting structure for an outer box of a washing machine of the present invention.

FIG. 2 is a perspective view showing a first example of a fixing piece which is a main part of the first embodiment of the mounting structure of the top cover and the bottom frame to the outer box of the washing machine of the present invention.
It is a perspective view showing an example.

FIG. 3 shows a first example of a fixing piece which is a main part of the first embodiment of the mounting structure of the top cover and the bottom frame to the outer box of the washing machine of the present invention.
It is a vertical side view of the broken state which shows an example.

FIG. 4 shows a second example of a fixing piece which is a main part of the first embodiment of the mounting structure of the top cover and the bottom frame to the outer box of the washing machine of the present invention.
It is a perspective view showing an example.

FIG. 5 shows a second example of a fixing piece which is a main part of the first embodiment of the mounting structure of the top cover and the bottom frame to the outer box of the washing machine of the present invention.
It is a vertical side view of the broken state which shows an example.

FIG. 6 is a perspective view of a third example of a fixing piece which is a main part of the first embodiment of the mounting structure of the top cover and the bottom frame to the outer box of the washing machine of the present invention.
It is a perspective view showing an example.

FIG. 7 shows a fourth example of a fixing piece which is a main part of the first embodiment of the mounting structure of the top cover and the bottom frame to the outer box of the washing machine of the present invention.
It is a perspective view showing an example.

FIG. 8 is a perspective view of a front surface side of a bottom frame showing a second embodiment of a structure for attaching a top cover and a bottom frame to an outer box of the washing machine of the present invention.

FIG. 9 is a perspective view of a rear surface side of a bottom frame showing a second embodiment of a structure for attaching a top cover and a bottom frame to an outer box of the washing machine of the present invention.

FIG. 10 is a longitudinal side view of a rear surface of a bottom frame showing a second embodiment of a top cover and bottom frame mounting structure for an outer box of a washing machine of the present invention.

FIG. 11 is a perspective view showing a first example of a front-side fixing piece which is a main part of a second embodiment of a top cover and bottom frame mounting structure for an outer box of a washing machine of the present invention.

FIG. 12 is a perspective view showing a first example of a fixing piece on a rear surface side, which is a main part of a second embodiment of a top cover and bottom frame mounting structure for an outer box of a washing machine of the present invention.

FIG. 13 is a longitudinal sectional side view in a broken state showing a first example of a rear-side fixing piece which is a main part of a second embodiment of a top cover and bottom frame mounting structure for an outer box of a washing machine of the present invention. is there.

FIG. 14 is a perspective view showing a second example of a front-side fixing piece which is a main part of a second embodiment of the top cover and bottom frame mounting structure for the outer box of the washing machine of the present invention.

FIG. 15 is a longitudinal sectional side view of a broken state showing a second example of a front-side fixing piece, which is a main part of a second embodiment of the top cover and bottom frame mounting structure for the outer box of the washing machine of the present invention. is there.

FIG. 16 is a perspective view showing a third example of a front-side fixing piece which is a main part of a second embodiment of the top cover and bottom frame mounting structure of the washing machine according to the present invention.

FIG. 17 is a perspective view showing a fourth example of a front-side fixing piece, which is a main part of a second embodiment of the top cover and bottom frame mounting structure for the outer box of the washing machine of the present invention.

FIG. 18 is a perspective view of a washing machine.

[Explanation of symbols]

1 ... outer box, 1a ... flange, 2
... Washing and dewatering tub, 3 ... Rotary wing, 4 ... Lid,
5 top cover, 6 front panel, 7 screws, 8 fixing pieces, 8a
Flange, 9: screw hole, 10: notch, 11: thin portion, 12: thin portion,
13 ... thin part, 14 ... bottom frame, 14a ... flange, 15 ... fixed piece, 15a ... flange,
16 ... Fixed piece

Continuing from the front page (72) Inventor Masanobu Yatsu 1-1-1, Yamate, Funabashi-shi, Chiba Pref. Japan Incorporated (72) Inventor Yuichi Hasebe 1-1-1, Yamate, Funabashi-shi, Chiba Pref. Inside the company (72) Inventor Junji Miyoshi 1-1-1, Yamate, Funabashi-shi, Chiba Japan Incorporated Steel Corporation (72) Inventor Kunio Inose 1-1-1, Yamate, Funabashi-shi, Chiba In Japan Construction Iron Corporation (72) Inventor Takeshi Sugino 1-1-1 Yamate, Funabashi-shi, Chiba F-term in Nippon Kentei Co., Ltd. (reference) 3B155 BB04 BB05 CB06 CB32 DA02 DA12 MA01 MA02

Claims (12)

[Claims] 1. A top cover mounting structure for an outer box of a washing machine for mounting a top cover by screwing a front portion and a rear portion to an upper opening edge of an outer box provided with a washing and dewatering tub. A top cover for a washing machine, wherein a fixing piece having a screw hole formed in one of a front part and a rear part of the cover is protruded, and a fragile portion is formed by positioning the fixing piece near the screw hole. Mounting structure. 2. The top cover mounting structure for a washing machine according to claim 1, wherein the fixing piece is vertically suspended from the top cover. 3. The top cover mounting structure for a washing machine according to claim 1, wherein the weak portion is a horizontal notch formed at a position above the screw hole. 4. The top cover mounting structure for a washing machine according to claim 1, wherein the weak portion is a U-shaped thin portion formed around the screw hole so as to surround the screw hole. 5. The weak portion according to claim 1, wherein the fixing piece is formed in a U-shaped cross section having a flange, and is a thin portion formed by a narrow portion formed in the flange at a position above the screw hole. A top cover mounting structure for the washing machine according to claim 2. 6. The top cover mounting structure for a washing machine according to claim 1, wherein the weak portion is a recessed thin portion formed above the screw hole. 7. A structure for attaching a bottom frame to an outer case of a washing machine in which a bottom frame is screwed and fixed to an opening edge of a lower portion of an outer case provided with a washing and spin-drying tub. A bottom frame mounting structure to an outer box of a washing machine, characterized in that a fixing piece having a screw hole formed in a rear portion thereof is protruded, and a fragile portion is formed in the fixing piece near the screw hole. 8. The structure for attaching a bottom frame to an outer box of a washing machine according to claim 7, wherein the fixing piece projects upward from the bottom frame. 9. The structure for attaching a bottom frame to an outer box of a washing machine according to claim 7, wherein the weak portion is a notch in a horizontal direction formed at a position below the screw hole. 10. The mounting of a bottom frame to an outer box of a washing machine according to claim 7, wherein the weak portion is a U-shaped thin portion formed around the screw hole so as to surround the screw hole. Construction. 11. The weak portion according to claim 7, wherein the fixing piece is formed in a U-shaped cross section having a flange, and is a thin portion formed by a narrow portion formed in the flange at a position below the screw hole. A structure for attaching a bottom frame to an outer box of the washing machine according to claim 8. 12. The structure for attaching a bottom frame to an outer box of a washing machine according to claim 7, wherein the fragile portion is a concave-shaped thin portion formed below the screw hole.