JP2003019387A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an abnormal sound such as a collision sound in the case of changing-over to washing or during a washing operation and to realize a low noise by reducing the number of parts in an electric machinery for driving water-using equipment such as a washing machine. SOLUTION: The machine is provided with a slide member 37 for changing- over the transmission of rotation in a driving motor 35 to a dehydrating shaft or a washing shaft 29 through vertical sliding. An upper projection part 37b is arranged in the upper part of the slide member 37 and a fixing side engagement member 43 having a fixing side projection part 43c to be engaged with the upper projection part 37b is attached to a holding member 42. The fixing side engagement member 43 is molded by resin by enclosing a metallic member 43b. Then the number of the parts is reduced, the abnormal sound is reduced in the collision sound during the washing operation and low noise is realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for washing, rinsing and dehydrating clothes.

[0002]

2. Description of the Related Art Conventionally, this type of washing machine has been shown in FIG. The configuration will be described below.

As shown in FIG. 7, a washing machine main body 1 is provided with a water receiving tank 3 suspended by a suspension 2 so as to prevent dewatering vibration, and the washing and dewatering tank 3 is placed in the water receiving tank 3. 4 is rotatably arranged, and a stirring blade 5 for stirring the laundry is rotatably arranged at the inner bottom of the washing / dehydrating tub 4. The washing / dehydrating tub 4 is arranged so as to be substantially coaxial with a dehydrating shaft 7 which is rotatably supported by a bearing 6 provided at the bottom of the water receiving tub 3, and is fixed to the upper end of the dehydrating shaft 7 for stirring. Wings 5
Is fixed to the upper end of a washing shaft 9 which is disposed in the hollow portion of the dehydration shaft 7 so as to be substantially coaxial with the dehydration shaft 7, and which is rotatably supported by a bearing 8 provided in the hollow portion of the dehydration shaft 7. The lower end of the washing shaft 9 is connected to the output side of the speed reduction mechanism 10. The upper end of the input shaft 13 whose lower end is connected to the rotor 12 of the drive motor 11 is connected to the input side of the speed reduction mechanism 10.

A clutch mechanism for switching the rotation transmission of the drive motor 11 to either the dehydration shaft 7 or the input shaft 13 will be described below. A slide portion 14 having a shape such as a spline is provided on the outer peripheral portion of the lower portion of the dehydration shaft 7. The slide portion 14 is provided with a slide member 15 having an inner peripheral shape corresponding to the shape of the spline or the like. When the rotation of the drive motor 11 is transmitted to the dehydration shaft 7, that is, when the washing / dehydrating tub 4 is rotated, the slide member 15 is pressed downward by the biasing spring 16 and the lower protrusion 15a provided at the lower part of the slide member 15 is pushed. The rotation of the rotor 12 is transmitted to the dehydration shaft 7 by engaging with the rotor protrusion 12 a provided on the rotor 12. Further, when the rotation of the drive motor 11 is transmitted to the input shaft 13, that is, when the stirring blade 5 rotates, the clutch lever 18 engaged with the slide member 15 is moved upward by the lever drive means 17 such as a geared motor or a solenoid. As a result, the slide member 15 is moved upward and the lower protrusion 15a of the slide member 15 is moved to the rotor 1
By removing the rotor 12 from the second rotor protrusion 12a, the rotation of the rotor 12 is not transmitted to the dehydration shaft 7 and is transmitted only to the input shaft 13. The rotation transmitted to the input shaft 13 is transmitted to the reduction mechanism 10,
The stirring blade 5 is transmitted via the washing shaft 9 to rotate the stirring blade 5. At the same time, by engaging the upper protrusion 15b provided on the upper part of the slide member 15 and the fixed-side protrusion 19a provided on the housing 19 of the drive motor 11, the washing / dehydrating tub 4 is fixed and the stirring blade 5 rotates. At this time, the washing / dehydrating tub 4 is prevented from co-rotating due to the water flow.

[0005]

In such a conventional structure, when the transmission of the rotation of the drive motor 11 is switched from the dehydration shaft 7 to the input shaft 13, the upper projection 15b provided on the upper part of the slide member 15 is provided in the rotor. 12 rotor protrusions 12a
Sound when engaging with each other, the side surface 15d of the lower protrusion 15a and the rotor protrusion 1 at the time of starting dehydration rotation or electromagnetic braking.
There is a problem that an abnormal sound such as a collision sound generated when the side surface 12d of the 2a abuts is generated.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to reduce abnormal noise such as collision noise during switching to washing or during washing operation and to realize low noise.

[0007]

In order to solve the above-mentioned conventional problems, the washing machine of the present invention has a slide member for switching the transmission of the rotation of the drive motor to either the dehydration shaft or the washing shaft by sliding up and down. An upper protrusion is provided on the upper portion of the slide member, and a fixed side engagement member having a fixed side protrusion that engages with the upper protrusion is attached to the holding member, and the fixed side engagement member is reinforced. This is a resin molded product that includes a member.

This makes it possible to reduce abnormal noise such as collision noise when switching to washing or during washing operation, thereby realizing low noise.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a hollow dewatering shaft for rotating a washing and dewatering tub, a hollow dewatering shaft arranged substantially coaxially with the dewatering shaft, and a hollow dewatering shaft disposed in the washing and dewatering tub. A washing shaft for rotating the provided stirring blades, a drive motor for rotating the spin-drying shaft and the wash shaft, a holding member for holding the drive motor, and a transmission of the rotation of the drive motor by sliding up and down. A slide member for switching to one of the shafts, an upper protrusion is provided on the upper portion of the slide member, and a fixed side engagement member having a fixed side protrusion that engages with the upper protrusion is provided on the holding member. This fixed side engaging member is a resin molded product that includes a reinforcing member, and secures the strength, collision noise when switching to washing, and when reversing the stirring blade during washing operation. Greatly reduces the collision noise of It is possible.

According to a second aspect of the present invention, in the first aspect of the present invention, a first substantially cylindrical rib is provided in a lower portion of the fixed side engaging member, and the fixed side protrusion is the first substantially cylindrical rib. Radially extending outward from the cylindrical ribs, the slide member is provided with an upper projection radially to engage with the radial fixed-side projection, and the outer periphery of the radial upper projection is provided with A second substantially cylindrical rib is integrally provided on the radial upper protrusion to significantly reduce the collision noise when switching to washing and the collision noise when reversing the stirring blade during washing operation. In addition, it is possible to improve the strength of each protrusion for engagement.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the invention described in (3), there is provided a clutch lever for sliding the slide member up and down by rotation, and a lever driving means for rotating the clutch lever, wherein the clutch lever is a rotation holding portion integrally provided on the fixed side engagement member. The impact sound when switching to washing and the impact noise when reversing the stirring blade during washing operation can be significantly reduced, and the strength of each protrusion for meshing can be improved. It is possible to reduce the number of parts and improve the assemblability.

According to a fourth aspect of the present invention, there is provided a hollow dewatering shaft for rotating the washing / dehydrating tub, and a stirring blade arranged substantially coaxially with the dewatering shaft and arranged in the washing / dehydrating tub. A washing shaft for rotating, a drive motor for rotating the dehydration shaft and the washing shaft, and an outer shell of the drive motor,
Further, a holding member for holding the drive motor and a slide member for switching the transmission of the rotation of the drive motor to either a dehydration shaft or a washing shaft by sliding up and down are provided, and an upper protrusion portion is provided on an upper portion of the slide member. The holding member is integrally formed with a fixed-side protruding portion that engages with the upper protruding portion, so that the number of parts can be reduced and the assemblability can be improved, and at the time of switching to washing. It is possible to significantly reduce the collision noise and the collision noise when the stirring blade is reversed during the washing operation.

According to a fifth aspect of the present invention, in the invention according to the fourth aspect, the holding member includes a reinforcing material in the vicinity of the fixed-side protruding portion, so that the number of parts can be reduced and the assemblability can be improved. It is possible to significantly reduce the collision noise when switching to washing and the collision noise when the stirring blades are reversed during the washing operation, and it is possible to improve the strength of the holding member and improve the durability. Can be improved.

According to a sixth aspect of the present invention, in the invention according to the fourth or fifth aspect, a clutch lever for sliding the slide member up and down by rotation is provided, and a lever driving means for rotating the clutch lever. The clutch lever is rotatably supported by a rotation holding portion provided integrally with the holding member, and significantly reduces the collision noise when switching to washing and the collision noise when reversing the stirring blade during washing operation. In addition, the number of parts can be reduced and the assemblability can be improved.

[0015]

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

(Embodiment 1) FIG. 1 is a diagram showing the overall construction of a washing machine according to the first embodiment of the present invention, and FIGS. 2 and 3 are diagrams showing the construction of a drive unit of the washing machine according to this embodiment. is there.

In FIG. 1, a washing machine main body 20 is provided with a water receiving tank 22 suspended by a suspension 21 so as to prevent dehydration vibration inside, and a washing and dehydrating tank 23 is rotated in the water receiving tank 22. The washing / dehydrating tub 23 is rotatably provided at the inner bottom of the washing / dehydrating tub 23 with stirring blades 24 for stirring the laundry. A drive unit 25 is provided at the bottom of the water receiving tank 22.

In FIGS. 1 and 2, the drive unit 25 is provided with a hollow dehydration shaft 26, and the dehydration shaft 26 is the drive unit 2.
5 is pivotally supported by a dehydrating upper bearing 27 provided in the upper central portion of the No. 5 and a dehydrating lower bearing 28 provided in the vicinity of the intermediate central portion.
The upper end of the dehydration shaft 26 is fixed to the bottom of the washing / dehydrating tub 23 and is connected to the washing / dehydrating tub 23. A washing shaft 29 is provided in the upper hollow portion 26a of the dehydration shaft 26 so as to be substantially coaxial with the dehydration shaft 26.
It is rotatably supported by a washing bearing 30 provided in 6a. The upper end of the washing shaft 29 is fixed to the bottom of the stirring blade 24 and is connected to the stirring blade 24. On the other hand, the lower end side of the washing shaft 29 is connected to the output side of the speed reduction mechanism 31 provided in the intermediate hollow portion 26b in the dehydration shaft 26.

An upper end of an input shaft 32 is connected to the input side of the speed reduction mechanism 31, and the input shaft 32 is rotatably supported by an input bearing 33 provided in a lower hollow portion 26c of the dehydration shaft 26.

Washing shaft 29, input shaft 32 and reduction mechanism 3
The dehydration shaft 26 including 1 and the like, the dehydration upper bearing 27 and the dehydration lower bearing 28 are enclosed by a case 34, and the case 34 is fixed to the bottom of the water receiving tank 22.

Reference numeral 35 is a drive motor for rotating the dehydration shaft 27 and the input shaft 32, and the rotor 35a of the drive motor 35 is connected to the lower portion of the input shaft 32. Drive motor 3
A stator 35c is arranged inside the rotor 5 so as to face the magnet 35b provided on the outer periphery of the rotor 35a.

A resin slide portion 36 having a shape such as a spline is provided on the outer periphery of the lower portion of the dehydration shaft 27. A slide member 37 having an inner peripheral shape corresponding to the shape of the spline or the like is provided on the slide portion 36 so as to be vertically slidable. The slide member 37 is pressed downward by an urging spring 38, and the lower protrusion 37a provided on the lower portion of the slide member 37 is engaged with the opening 35d provided on the rotor 35a to spin the rotor 35a. It is configured so that it can be transmitted to the shaft 27. This state is maintained when the power of the washing machine is off.

A lever drive means 39 such as a geared motor or a solenoid is attached to the bottom of the water receiving tank 22.

Drive means connecting portion 39 of the lever drive means 39
One end of an intermediary member 41, the other end of which is connected to the clutch lever connecting portion 40a of the clutch lever 40, is connected to a.

The clutch lever 40 has a substantially U-shaped slide member supporting portion 40b for supporting the slide member 37 from below at one end, and has the clutch lever connecting portion 40a at the other end, and is also driven. Stator 35 of motor 35
fixed side engaging member 43 provided on the holding member 42 for holding c
Of the shaft portion 40 rotatably supported by the rotation holding portion 43a of the
have c.

The fixed side engaging member 43 is attached to the holding member 42 by fixing the fixed side engaging member 43 and the holding member 42 integrally to the case 34 with a screw 44.

The fixed side engaging member 43 is formed by pressing a metal member 43b into a substantially concave shape so as to have a hole at the bottom, and a substantially flat outer surface thereof as a mounting portion for the holding member 42, and enclosing the metal member 43b. Fixed side protrusion 4 by resin molding
3c is formed.

When the rotation of the drive motor 35 is transmitted to the input shaft 32, the drive means connecting portion 39a of the lever drive means 39 is provided.
2 is rotated and moved from the position of FIG. 2 to the position of FIG. 3, the clutch lever 40 rotates clockwise around the shaft portion 40c via the intermediate member 41. Due to this rotation, the slide member support portion 40b rotationally moves upward, and the slide member 37 is lifted upward against the downward biasing force of the biasing spring 38. As a result, as shown in FIG. 3, the lower protrusion 37a provided on the lower portion of the slide member 37 is disengaged from the opening 35d provided on the rotor 35a, and the rotation of the rotor 35a is not applied to the dehydration shaft 27. It is configured to be transmitted and is transmitted only to the input shaft 32. At the same time, the upper protrusion 37b provided on the upper part of the slide member 37 and the fixed side protrusion 43c provided on the fixed side engaging member 43 are engaged with each other to fix the dehydration shaft 26, and It is designed to prevent co-rotation.

The clutch lever connecting portion 40a projects outward from the drive motor 35 and contacts the side wall of the case 34 when the clutch lever 40 rotates counterclockwise as shown in FIG. The rotation is restricted by.

The clutch lever 40 has a substantially U-shaped slide member supporting portion 40b for supporting the slide member 37 from below at one end, the clutch lever connecting portion 40a at the other end, and a drive Stator 35 of motor 35
fixed side engaging member 43 provided on the holding member 42 for holding c
The hole portion 43b has a shaft portion 40c rotatably supported.

As shown in FIG. 4, a first substantially cylindrical rib 43d is provided in the inner diameter direction portion of the fixed side projection 43c formed by resin molding that includes the metal member 43b. 43c extends radially outward from the first substantially cylindrical rib 43d. 43e is a through hole at the time of attachment to the holding member 42.

As shown in FIG. 5, the upper projecting portion 37b provided on the upper portion of the slide member 37 is provided in a radial shape so as to engage with the fixed side projecting portion 43c. On the outer periphery of the upper protrusion 37b, the second protrusion is integrally formed with the upper protrusion 37b.
Is provided with a substantially cylindrical rib 37c.

The operation of this structure will be described.

First, when the washing and rinsing strokes are performed by the rotation of the stirring blade 24, that is, when the rotation of the drive motor 35 is transmitted to the input shaft 32, the drive means connection portion 39a of the lever drive means 39 is rotated, From the position of FIG. 2 to FIG.
To the clutch lever 40
Rotates clockwise around the shaft 40c via the intermediary member 41. By this rotation, the slide member support portion 4
0b rotationally moves upward and lifts the slide member 37 upward against the downward biasing force of the biasing spring 38. As a result, as shown in FIG. 3, the lower protrusion 37a provided on the lower portion of the slide member 37 is disengaged from the opening 35d provided on the rotor 35a, and the rotation of the rotor 35a is not applied to the dehydration shaft 27. It is transmitted, and is transmitted only to the input shaft 32, and the stirring blade 24 rotates. At the same time, the upper protruding portion 37b provided on the upper portion of the slide member 37 and the fixed side protruding portion 43c provided on the fixed side engaging member 43 are engaged with each other to prevent the washing / dehydrating tub 23 from rotating together.

As described above, since the fixed side engaging member 43 has the fixed side projection 43c formed by resin molding so as to enclose the metal member 43b, the metal member 43b ensures strength. A collision sound when the upper protrusion 37b provided on the upper portion of the resin slide member 37 and the resin fixed-side protrusion 43c provided on the fixed-side engaging member 43 are engaged, and a stirring blade at the time of washing Since the collision sound at the time of reversing is a collision between resins, it can be significantly reduced compared to the case of metal.

Further, since the fixed side protrusion 43c is integrally provided with the first substantially cylindrical rib 43d and the upper protrusion 37b is integrally provided with the second substantially cylindrical rib 37c, the respective protrusions are The strength can be improved and the reliability can be improved.

Further, the shaft portion 40c of the clutch lever 40
Since the rotation holding portion 43a for supporting the above is integrally provided with the fixed side engaging member 43, the number of parts can be reduced and the assemblability can be improved.

(Embodiment 2) Next, a second embodiment will be described with reference to FIG.
Will be described with reference to. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 6, the slide member 37 is attached to the holding member 45 that holds the stator 35c of the drive motor 35.
A fixed-side protruding portion 45a is provided integrally in a radial shape so as to engage with an upper protruding portion 37b provided in a radial shape on the upper part of the. In the inner diameter direction part of the fixed side protrusion 45a, the third
The substantially cylindrical rib 45b is integrally provided with the fixed-side protrusion 45a.

A reinforcing member 46 is included in the vicinity of the fixed-side protruding portion 45a provided integrally with the holding member 45.

The clutch lever 40 has a substantially U-shaped slide member support portion 40b for supporting the slide member 37 from below at one end, and has the clutch lever connection portion 40a at the other end, and also has a drive mechanism. Stator 35 of motor 35
The rotation holding unit 4 provided integrally with the holding member 45 that holds c.
5c has a shaft portion 40c that is rotatably supported.

With the above structure, the upper protrusion 37b provided on the upper portion of the resin slide member 37 and the holding member 45.
The collision sound when the fixed-side protrusion 45a integrally provided in the engine engages and the collision sound when the stirring blades are inverted during washing are resin-to-resin collisions, and thus are significantly larger than those of metal. It can be reduced. In addition, the fixed side protrusion 45a is attached to the holding member 4
5, the fixed side engaging member having the fixed side protruding portion does not need to be provided as a separate part, so that the number of parts can be reduced and the assemblability can be improved.

Since the reinforcing member 46 is included in the vicinity of the fixed-side protruding portion 45a provided integrally with the holding member 45, the strength of the fixed-side protruding portion 45a can be improved and the reliability can be improved. Can be improved.

Further, the shaft portion 40c of the clutch lever 40
Since the rotation holding portion 45c for supporting the unit is integrally provided with the holding member 45, the number of parts can be reduced and the assembling property can be improved.

[0045]

As described above, according to the first aspect of the present invention, a hollow dehydrating shaft for rotating a washing / dehydrating tub and a washing / dehydrating shaft are arranged substantially coaxially with each other. A washing shaft that rotates a stirring blade disposed in the dehydration tub, a drive motor that rotates the dehydration shaft and the washing shaft, a holding member that holds the drive motor, and a transmission of rotation of the drive motor by up and down sliding. A slide member for switching between a dehydration shaft and a washing shaft, an upper protrusion is provided on an upper portion of the slide member, and a holding member has a fixed-side protrusion that engages with the upper protrusion. Since the side engaging member is attached and the fixed side engaging member is a resin molded product including the reinforcing member, the strength is ensured and the collision noise at the time of switching to washing and the stirring blade at the time of washing operation are provided. Collision noise when reversing It can cause lack, in which can realize an improvement in quality.

According to a second aspect of the present invention, in the first aspect of the invention, a first substantially cylindrical rib is provided in the lower portion of the fixed side engaging member, and the fixed side protruding portion is the above-mentioned. First
Radially outwardly extending from the substantially cylindrical rib of the slide member, and the slide member is provided with an upper protrusion in a radial manner so as to engage with the radial fixed-side protrusion, and on the outer periphery of the radial upper protrusion. Since the second substantially cylindrical rib is integrally provided on the radial upper protrusion, the impact noise when switching to washing and the impact noise when reversing the stirring blade during washing operation can be significantly reduced. In addition to being able to improve the strength of each of the engaging projections, it is possible to improve reliability and quality.

According to a third aspect of the present invention, in the first or second aspect of the invention, a clutch lever for sliding the slide member up and down by rotation, and a lever driving means for rotationally operating the clutch lever. With and
Since the clutch lever is rotatably supported by the rotation holding portion provided integrally with the fixed side engaging member, the collision noise at the time of switching to washing and the collision noise at the time of reversing the stirring blade during the washing operation are significantly reduced. Therefore, it is possible to improve the strength of each of the engaging projections, improve reliability and quality, and reduce the number of parts to improve the assemblability.

[0048] According to the invention as set forth in claim 4, a hollow dehydrating shaft for rotating the washing / dehydrating tub and a hollow dewatering shaft are arranged substantially coaxially with each other and arranged in the washing / dehydrating tub. A washing shaft for rotating the provided stirring blade, a drive motor for rotating the spin-drying shaft and the washing shaft, a holding member integrally formed with the outer contour of the drive motor, and holding the drive motor, and a vertical sliding motion. A slide member that switches the transmission of rotation of the drive motor to either a dehydration shaft or a washing shaft, and an upper protrusion is provided on an upper portion of the slide member.
The holding member is integrally formed with a fixed-side protruding portion that engages with the upper protruding portion, so that the number of parts can be reduced and the assembling property can be improved, and the collision noise at the time of switching to washing and the washing The collision noise at the time of reversing the stirring blade during operation can be greatly reduced, and the quality can be improved.

According to the invention described in claim 5, in the invention described in claim 4, since the holding member includes the reinforcing material in the vicinity of the fixed side protrusion, the number of parts is reduced and the assemblability is improved. The impact noise when switching to washing and the impact noise when reversing the stirring blade during washing operation can be significantly reduced, and the strength of the holding member can be improved. The durability can be improved, and the reliability and quality can be improved.

Further, according to the invention of claim 6,
In the invention according to claim 4 or 5, a clutch lever for sliding the slide member up and down by rotation,
A lever driving means for rotating the clutch lever is provided, and the clutch lever is pivotally supported by a rotation holding portion provided integrally with a holding member. Therefore, a collision sound at the time of switching to washing and a stirring blade during washing operation are provided. It is possible to significantly reduce the collision noise at the time of reversing, improve quality, and reduce the number of parts to improve the assemblability.

[Brief description of drawings]

FIG. 1 is a sectional view of a washing machine according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the washing machine according to the first embodiment of the present invention.

FIG. 3 is a sectional view of a main part of the washing machine according to the first embodiment of the present invention.

FIG. 4 (a) is a sectional view of a main part of a washing machine according to a first embodiment of the present invention. (B) is a bottom view of a main part of a washing machine according to the first embodiment of the present invention.

FIG. 5A is a plan view of a main part of the washing machine according to the first embodiment of the present invention. FIG. 5B is a cross-sectional view of the main part of the washing machine according to the first embodiment of the present invention.

FIG. 6 is a sectional view of a main part of a washing machine according to a second embodiment of the present invention.

FIG. 7 is a sectional view of a conventional washing machine.

[Explanation of symbols]

23 Laundry and dehydration tank 24 stirring blades 26 Dehydration shaft 29 Washing axis 35 drive motor 37 Slide member 37b Upper protrusion 42 Holding member 43 Fixed side engaging member 43b Metal member (reinforcing member) 43c Fixed side protrusion

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mikio Tahara             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F-term (reference) 3B155 AA10 BA03 CA05 CA06 CA16                       CB06 HB02 HB03 HB10 HB19                       MA01 MA02

Claims (6)

[Claims] 1. A hollow dewatering shaft for rotating a washing / dehydrating tub, and a washing shaft for rotating a stirring blade arranged substantially coaxially with the dewatering shaft and arranged in the washing / dehydrating tub.
A drive motor for rotating the dehydration shaft and the washing shaft, a holding member for holding the drive motor, and a slide member for switching the transmission of rotation of the drive motor to either the dehydration shaft or the washing shaft by sliding up and down. An upper protrusion is provided on the upper part of the slide member, and a fixed side engagement member having a fixed side protrusion that engages with the upper protrusion is attached to the holding member. A washing machine made of a resin molded product containing a reinforcing member. 2. A first substantially cylindrical rib is provided in the lower portion of the fixed side engaging member, and the fixed side protrusion extends radially outward from the first substantially cylindrical rib and is provided on the slide member. Are provided radially so that the upper protrusions engage with the radial fixed-side protrusions, and a second substantially cylindrical rib is integrally formed with the radial upper protrusions on the outer periphery of the radial upper protrusions. The washing machine according to claim 1, which is provided. 3. A clutch lever for sliding the slide member up and down by rotation, and a lever drive means for rotating the clutch lever, wherein the clutch lever is provided by a rotation holding portion integrally provided on the fixed side engagement member. The washing machine according to claim 1 or 2, which is axially supported. 4. A hollow dewatering shaft for rotating the washing / dehydrating tub, and a washing shaft for rotating a stirring blade arranged substantially coaxially with the dewatering shaft and arranged in the washing / dehydrating tub.
A drive motor that rotates the dehydration shaft and the washing shaft, a holding member that is integrally formed with the outer contour of the drive motor, and that holds the drive motor, and a dehydration shaft that transmits the rotation of the drive motor by sliding up and down, A washing machine comprising: a slide member for switching to one of the washing shafts; an upper protrusion portion provided on an upper portion of the slide member; and a fixed-side protrusion portion that engages with the upper protrusion portion formed integrally with the holding member. 5. The washing machine according to claim 4, wherein the holding member includes a reinforcing material in the vicinity of the fixed-side protruding portion. 6. A clutch lever for sliding the slide member up and down by rotation, and a lever drive means for rotating the clutch lever, wherein the clutch lever is pivotally supported by a rotation holding portion integrally provided on a holding member. The washing machine according to claim 4 or 5.