JPH09187596A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a suspension supporting part light in weight without lowering its supporting strength. SOLUTION: A washing tub 21 supported by a suspension 7 and a washing and dehydrating drum 23 to be controlled by a driving motor 63 so as to be freely rotated with a horizontally axial center as a center inside the washing tub 21 are provided inside a casing 1 to be the main body of washing machine. Then, an entire bottom plate 3 of the casing 1 is formed from plastic having a recessed mounting part 9, a suspension supporting part 41 formed from a member different from that of the bottom plate 3 so as to mount and support the base end side of suspension is inserted and fixed at the recessed mounting part 9 of the bottom plate 3, and the suspension supporting part 41 is formed from materials having strength rigidity higher than the plastic of the bottom plate 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washer / dryer designed to be lightweight.

[0002]

2. Description of the Related Art Generally, washing machines are classified into a vertical axis type in which a washing tub or a dewatering tub is rotated about a vertical axis, and a horizontal axis type in which a washing / dehydrating drum is rotated about a horizontal axis.

The outline of a horizontal axis type washing machine is that a washing and dehydrating drum is rotatably arranged around a horizontal axis center by a drive motor inside a washing tub supported by a suspension for damping vibration noise. The laundry is structured so that it can be taken in and out through the front door.

[0004]

The horizontal axis type washing machine is required to be lighter than the vertical axis type washing machine. However, as mentioned above, the suspension is
Since the drive motor and the entire washing tank with the washing and dewatering drum inside are supported, the bottom plate on which the suspension is mounted and supported generally requires high supporting rigidity over the entire area. The current situation is that an increase in weight is unavoidable due to measures such as increasing the thickness and providing a reinforcing member.

Therefore, an object of the present invention is to provide a washer / dryer in which the strength of the suspension supporting portion is increased and the weight thereof is reduced.

[0006]

In order to achieve the above object, the present invention provides a washing tub supported by a suspension in an outer box which is a main body of a washing machine, and an inside of the washing tub.
Equipped with a washing and dehydrating drum that is rotatably controlled about a horizontal axis by a drive motor, the entire bottom plate of the outer box is molded with plastic having a mounting recess, and the mounting recess of the bottom plate is separated from the bottom plate. A suspension support part formed of a member for mounting and supporting the base end side of the suspension is fitted and fixed, and the suspension support part is formed of a material having higher strength and rigidity than the plastic of the bottom plate.

Therefore, as a preferred embodiment, the support surface of the suspension support portion that supports the base end side of the suspension is made orthogonal to the central axis of the suspension.

Alternatively, the supporting surface of the suspension supporting portion for supporting the base end side of the suspension is positioned below the upper end of the mounting recess of the bottom plate and above the bottom surface of the bottom plate.

Alternatively, the suspension supporting portion is formed in a U-shaped cross section consisting of an outer peripheral surface whose upper side is open and a supporting surface, and the outer peripheral surface is substantially parallel to the central axis of the suspension.

According to such a washer / dryer, the load inputted through the suspension is received by the mounting concave portion, the plus, and the suspension supporting portion, so that stable supporting strength can be obtained. Therefore, the entire bottom plate can be molded of plastic, which contributes to weight reduction. Further, since the suspension is supported orthogonally to the support surface of the suspension support portion, a reasonably and surely supported state can be obtained.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to FIGS. 1 and 2.

In FIG. 1, reference numeral 1 denotes an outer box which is the main body of the washing machine. The bottom plate 3 of the outer box 1 is supported by the supporting legs 5 and is formed of plastic over the entire area. A mounting recess 9 for mounting a suspension 7 to be described later is provided at each corner of the bottom plate 3, and an internal space 11 of the bottom plate 3 is an assembly space for mounting a pipe 13 or wiring.

As shown in FIG. 2, the mounting recess 9 is provided with a bottom portion 17 at a predetermined depth from the peripheral wall portion 15 whose upper side is open, and the peripheral wall portion 15 is provided with reinforcing ribs 15a at predetermined intervals.
The bottom portion 17 has a shape in which through holes 19 are provided.

In the outer box 1, a washing tank 21 serving as an outer tank,
A washing / dehydrating drum 23 serving as an inner tank and a dry air circulation air passage 25 through which dry air flows are arranged.

The washing tank 21 is supported by the plurality of suspensions 7 provided on the bottom side as described above, and is connected to and communicates with the upper water supply valve 25 and the lower drain valve 27, respectively, and the drain valve 27 and the pipe. 13 has a structure arranged in the internal space 11 of the bottom plate 3. Therefore,
By opening the water supply valve 25, washing water can be supplied.
By opening the drain valve 27, washing water can be drained.

The suspension 7 includes a cylinder 29 arranged at a predetermined angle toward the inside, a friction slide body (not shown) that slides while contacting the inner wall surface of the cylinder 29, and the inside of the cylinder 29. , The lower end is connected to the friction slide body, the upper end is extended above the cylinder 29, and an urging spring (not shown) interposed in the cylinder 29 applies an urging force upward. It consists of a piston rod 31.

The upper end of the piston rod 31 has a threaded portion 3
3, the pair of upper and lower vibration absorbing elastic members 39, 39 disposed with the mounting portions 37, 37 of the support bracket 35 on which the washing tank 21 is placed and set are sandwiched, and the screw portion is provided. It is fixedly supported by a nut 41 screwed to 33.

The mounting portion 37 of the support bracket 35 has a shape intersecting with the central axis Y of the suspension 7 inclined at a predetermined angle, and has elastic members 39, 39 for absorbing vibration.
It is designed so that no unreasonable deformation will occur.

Cylinder 29 constituting the suspension 7
The lower end side of is mounted and supported by a suspension support portion 41 fitted and fixed in the mounting recess 9.

The suspension support portion 41 has the bottom portion 3
A flange-shaped flange portion 4 having an open upper portion made of a material having higher strength and rigidity than the plastic constituting the material, for example, metal.
A cylindrical outer peripheral surface 45 having 3 and a supporting surface 47 serving as a bottom portion are formed in a U-shaped cross section. The material of the suspension support portion 41 is not limited to metal and may be a synthetic resin material as long as it is a material having higher strength and rigidity than the plastic forming the bottom plate 3.

Outer peripheral surface 45 of the suspension support portion 41
Are arranged substantially parallel to the central axis Y of the suspension 7, and the supporting surface 47 has a shape orthogonal to the central axis Y. The supporting surface 47 with respect to the mounting recess 9 is the bottom 17 of the mounting recess 9. The flange-shaped flange portions 43 are respectively in contact with the upper ends of the mounting recesses 9, and the flange-shaped flange portions 43 are fixedly supported by bolts 51 on the mounting portions 49 provided in the mounting recesses 9.

On the other hand, a pair of upper and lower elastic members 53, 53 for absorbing vibration are provided on the support surface 47 of the suspension support portion 41 with the support surface 47 interposed therebetween, and a shaft cylinder portion 55 extended from the cylinder 29 penetrates the support surface 47. Then, it is fixedly supported at the lower end of the cylinder 29 by a nut 59 screwed to the screw 57 at the tip.

On the other hand, the washing / dehydrating drum 23 is provided with a large number of through holes (not shown) in a peripheral plate serving as an outer peripheral surface, and is rotatably mounted on a drum shaft 61 serving as a horizontal axis, and is externally mounted. By opening an opening / closing door (not shown) provided on the front panel of the box 1, laundry can be put in and taken out.

The drum shaft 61 is supplied with rotational power from a drive motor 63, and a transmission belt 69 is wound around a drive pulley 65 of the drum shaft 61 and a motor pulley 67 of the drive motor 63.

The drive motor 63 is fixedly set on the support bracket 35, and its rotation is controlled by turning on / off a control switch (not shown).

The dry air circulation passage 25 is formed by a duct, and inside thereof, a blower, a dehumidifier, and a heater (none of which are shown) are arranged. One of the dry air circulation passages 25 communicates with the dry air inlet 71 of the washing / dehydrating drum 23. Also, the other washing and dewatering drum 23
Of the washing and dewatering drum 2 through the dry air circulation passage 25.
It circulates in 3

According to the washer / dryer thus constructed, the load inputted through the suspension is received by the mounting recess 9 and the plus, suspension supporting portion 41, so that stable supporting strength can be obtained. Therefore, the entire bottom plate 3 can be molded from plastic.

Further, the vibration system during the dehydration operation vibrates due to an imbalance caused by uneven laundry. The vibration is rocking vibration about the central axis Y of the suspension 7 with the joint between the suspension support 41 fixedly supported by the nut 59 and the suspension 7 as a fulcrum. Therefore, the suspension support portion 41 and the outer peripheral surface 45 form a surface 45 substantially parallel to the central axis Y,
The suspension support part 41 can be designed compactly, and the weight is reduced in combination with the plastic of the bottom plate 3.

Elastic members 39, 54 for absorbing vibration
Since the structure is orthogonal to the vibration direction, an unbalanced load does not occur and a reasonably reliable support state can be obtained.

[0030]

As described above, according to the washer / dryer of the present invention, the load from the suspension can be received by the mounting recess and the suspension supporting portion without impairing the supporting strength. Since it can be molded with plastic, weight reduction can be achieved. Moreover, the internal space can be used as a space for arranging parts. In addition, the suspension support portion along the vibration system can be designed compactly by the support surface that intersects the outer peripheral surface parallel to the central axis of the suspension, and a stable support state without an unbalanced load can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic rear view of a washing tub of a washer / dryer according to the present invention seen from behind.

FIG. 2 is an enlarged cross-sectional view showing a relationship between a mounting recess and a suspension support.

[Explanation of symbols]

 1 Outer box 3 Bottom plate 7 Suspension 9 Mounting recess 21 Washing tank 23 Washing / dewatering drum 41 Suspension support 63 Drive motor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Funaki 991, Anada Town, Seto City, Aichi Prefecture Toshiba Aichi Plant

Claims (4)

[Claims] 1. A washing tub supported by a suspension, and a washing / dehydrating drum rotatably controlled around a horizontal axis by a drive motor inside the washing tub in an outer box serving as a main body of a washing machine. Equipped, the entire bottom plate of the outer box,
Molded with a plastic having a mounting recess, the mounting recess of the bottom plate is formed of a member different from the bottom plate, and a suspension support part for mounting and supporting the base end side of the suspension is fitted and fixed, and the suspension support part is A washer / dryer characterized in that the bottom plate is formed of a material having higher strength and rigidity than plastic. 2. The washer / dryer according to claim 1, wherein a support surface of a suspension support portion that supports a base end side of the suspension is orthogonal to a central axis of the suspension. 3. The suspension supporting portion for supporting the base end side of the suspension is positioned below the upper end of the mounting recess of the bottom plate and above the bottom surface of the bottom plate. 1. The washer / dryer according to 1. 4. The suspension support portion is formed in a U-shaped cross section, which is composed of an outer peripheral surface whose upper side is open and a support surface.
The washer / dryer according to claim 1, wherein the outer peripheral surface is substantially parallel to the central axis of the suspension.