JP7198979B2 - washing machine - Google Patents

Description

The present disclosure relates to washing machines.

Patent Literature 1 discloses a vertical washing machine in which a holding part for holding a motor and the like is attached to the bottom of a water tub.

The vertical washing machine in Patent Document 1 includes a water tank, a washing and dewatering tank rotatably disposed inside the water tank, a stirring blade rotatably disposed at the inner bottom of the washing and dewatering tank, and a transmission Equipped with a motor that rotates the stirring blade and/or the washing and dehydrating tub via a mechanism, a drainage path that communicates with the inside of the tub and drains the washing water, and a drainage valve that opens and closes the drainage path and shuts it off. . The transmission mechanism and the motor are fixed to a holding part arranged on the outer bottom of the water tank. A drain path and drain valve are fixed to the outer bottom of the aquarium.

JP-A-9-276587

The present disclosure provides a washing machine in which parts around the transmission mechanism can be shared.

A washing machine according to the present disclosure includes a water tank, a washing and dewatering tank rotatably disposed inside the water tank, a stirring blade rotatably disposed at the inner bottom of the washing and dewatering tank, and a transmission mechanism. a motor for rotationally driving the agitating blade and/or the washing and dehydrating tub through a drain path communicating with the inside of the tub to drain the washing water; and a drain valve for opening and closing the drain path and shutting it off. and a holding part to which the motor and the transmission mechanism are fixed and which is arranged on the outer bottom of the water tank. The transmission mechanism is provided with a plurality of transmission mechanism fixing portions that can be attached to the holding portion. The transmission mechanism has a lever having a lever engaging portion formed at a position of a predetermined length, and the driving force from the motor is transmitted by the operation of the lever. and the holding portion is formed with a switching motor fixing portion that allows the switching motor to be mounted on a virtual tangential line from the transmission mechanism to the virtual circle having the predetermined length, A relay component that connects the drain valve and the switching motor is provided, the relay component is formed with a relay component engaging portion for engaging with the lever engaging portion, and the switching motor fixing portion includes: The holding part is formed at two positions so as to correspond to the two mounting directions of the transmission mechanism, and the holding part has the following two specifications: Specification A: the switching motor is formed at two positions; The transmission mechanism is arranged so that the lever is located on the opposite side of the relay part engaging portion, and one of the switching motors opens and closes the drain valve. and the other switching motor switches the transmission destination of the driving force from the motor by controlling the lever. Specification B: The switching motor is formed at two positions The transmission mechanism is arranged so that the lever is positioned at the intermediate part engaging portion, and the switching motor is arranged to control the opening and closing of the drain valve. In addition to controlling the opening and closing of the valve, it is possible to switch the transmission destination of the driving force from the motor by controlling the lever .

The washing machine according to the present disclosure can share parts around the transmission mechanism.

Longitudinal sectional view of the washing machine according to Embodiment 1 Schematic diagram showing the holding part of the washing machine Appearance bottom view of the water tank after the parts are installed in the same washing machine specification A as seen from below Schematic diagram showing the holding part after parts are installed in the washing machine specification A Schematic diagram showing the holding part after parts are attached in the washing machine specification B

Hereinafter, embodiments will be described in detail with reference to the drawings. It should be noted that the present invention is not limited by the accompanying drawings and the following description.

(Embodiment 1)
(Basic configuration of washing machine)
1 is a longitudinal sectional view of a washing machine according to Embodiment 1. FIG.

As shown in FIG. 1 , washing machine 100 includes outer frame 101 and upper frame 102 . The upper frame 102 is fixed to the upper part of the outer frame 101, and is formed so that a laundry inlet (not shown) is opened substantially in the center. The lid 103 is arranged on the upper part of the upper frame 102 and is provided so as to be openable and closable so as to cover the laundry inlet.

Inside the outer frame 101 , a bottomed cylindrical water tank 104 is elastically supported by a suspension 105 . A washing and dehydrating tub 106 is rotatably held inside the tub 104 . A large number of dehydration holes 109 are formed in the side wall of the washing/dehydration tub 106 to allow washing water to pass inside and outside the washing/dehydration tub 106 . A fluid balancer 108 is provided above the washing/drying tub 106 to suppress rattling of the washing/drying tub 106 during the dehydration operation. An agitating blade 107 is rotatably provided at the inner bottom of the washing/drying tub 106 , and the laundry inside the washing/drying tub 106 can be agitated by rotating the agitating blade 107 .

A holding portion 120 is attached to the outer bottom of the water tank 104 , and a transmission mechanism 140 fixed to the holding portion 120 is integrally formed with the motor 130 . The holding portion 120 and its peripheral configuration will be described later. A washing/dehydrating shaft 141 that is part of the transmission mechanism 140 is connected to the stirring blade 107 and the washing/dehydrating tub 106 .

The transmission mechanism 140 is provided with a transmission mechanism-side lever 144 protruding from the main body portion of the transmission mechanism 140 , and the distal end portion of the transmission mechanism-side lever 144 is connected to a clutch device (not shown) provided in the transmission mechanism 140 . ) is connected to a clutch switching motor 150 for switching.

By driving this clutch switching motor 150, the transmission mechanism side lever 144 is moved, and by switching the transmission destination of the driving force of the motor 130 by the clutch device, the stirring blade 107 is rotated independently, or the stirring blade 107 and the washing and dewatering tub 106 are rotated at the same time. A deceleration mechanism (not shown) reduces the rotational driving force transmitted from the motor 130 , and a brake mechanism (not shown) stops the rotation of the washing and dewatering shaft 141 .

A drainage path 111 that communicates the outside of the outer frame 101 and the water tank 104 is connected to the outer bottom of the water tank 104 . A drain valve 112 is provided inside the drain path 111 , and the washing water in the water tank 104 is drained to the outside of the washing machine 100 when the drain valve 112 is open.

A control means 110 having a built-in control board (not shown) is arranged on the rear surface of the outer frame 101 . The control board controls the motor 130, the transmission mechanism 140 and the like to execute a series of washing operations.

(Structure of holding part)
2 is a schematic diagram showing a holding portion of the washing machine in Embodiment 1,
As shown in FIG. 2, the holding portion 120 is formed of a plate-shaped metal component. A plurality of transmission mechanism fixing holes 123 are formed substantially in the center of the holding portion 120 so that the transmission mechanism 140 can be attached thereto. are arranged as

A virtual circle C indicates a position that is a predetermined length r from the transmission mechanism 140 . A transmission mechanism-side lever engaging portion 144a, which will be described later, is positioned on the virtual circle C when the transmission mechanism 140 is attached to the holding portion 120. As shown in FIG. A virtual tangent line E is a tangent line to the virtual circle C, and is provided so as to pass through the position of the transmission mechanism-side lever engaging portion 144 a when the transmission mechanism 140 is attached to the holding portion 120 . The drain valve switching motor fixing hole 121 and the clutch switching motor fixing hole 122 are formed in the vicinity of the imaginary tangent line E. As shown in FIG.

The holding part 120 is configured so that parts can be attached to washing machines having specifications A and B that are different from each other. Hereinafter, the configuration of the holding portion after parts are attached to the washing machine 100 of specification A and the washing machine 200 of specification B will be described. The basic configuration of washing machine 200 is the same as that of washing machine 100 described above.

(Construction of the holding part after attaching parts: Specification A)
FIG. 3 is a bottom view of the external appearance of the water tub after the parts are installed in the washing machine specification A according to the first embodiment, and FIG. 4 is a schematic diagram showing the holding part after the parts are installed in the washing machine specification A. is.

As shown in FIG. 3 , the holding portion 120 in the specification A is provided with a transmission mechanism 140 , a clutch switching motor 150 , a drain path 111 , and a drain valve switching motor 152 . The washing machine 100 according to the specification A is provided with a clutch switching motor 150 for switching the clutch device separately from the drain valve switching motor 152, thereby opening and closing the drain valve 112 and transmitting the driving force of the transmission mechanism 140. The switching to the destination is performed independently.

The clutch switching motor 150 has a screw hole corresponding to the clutch switching motor fixing hole 122 , and is screwed to the holding portion 120 in the clutch switching motor fixing hole 122 . On the other hand, the drain valve switching motor 152 is screwed to the holding portion 120 in the drain valve switching motor fixing hole 121 .

As shown in FIG. 4 , a flange 145 is formed on the outer edge of the surface of the transmission mechanism 140 that abuts on the holding portion 120 , and the transmission mechanism screw fastening portion 146 on the flange 145 corresponds to the transmission mechanism fixing hole 123 . is formed to Transmission mechanism 140 is screwed to holding portion 120 at transmission mechanism screw fastening portion 146 .

The transmission mechanism side lever 144 is configured to protrude from the main body portion of the transmission mechanism 140, and near the tip of the transmission mechanism side lever 144, there is a transmission mechanism side lever 144 at a position a predetermined length r from the main body portion. A lever engaging portion 144a is formed. The transmission mechanism side lever engaging portion 144a is engaged with a clutch switching motor side lever engaging portion 150b provided near the tip of the clutch switching motor side lever 150a. In this manner, the transmission mechanism-side lever 144 is connected to the clutch-switching motor-side lever 150a provided in the clutch-switching motor 150, and is operated by the power of the clutch-switching motor 150 to transmit the driving force. switch.

Drainage path 111 is fixed to holding portion 120 on the back side of washing machine 100 . The drain valve 112 provided inside the drain path 111 is connected via a relay part 153 to a drain valve switching motor-side lever 152 a projecting from the drain valve switching motor 152 . The drain valve switching motor 152 switches the open/closed state of the drain path 111 by opening and closing the drain valve 112 . The relay component 153 is located at a distance r from the transmission mechanism 140, and a relay component engaging portion 153a that can be engaged with the transmission mechanism side lever engaging portion 144a is formed on the surface facing the transmission mechanism 140. It is

(Construction of the holding part after attaching parts: Specification B)
FIG. 5 is a schematic diagram showing a holding portion after parts are attached in specification B of the washing machine according to Embodiment 1;
As shown in FIG. 5, the holding part 120 in the specification B includes the transmission mechanism 140 and the drainage path 1
11, a relay component 153, and a drain valve switching motor 152 are attached. The drain valve switching motor 152 is screwed to the holding portion 120 in the drain valve switching motor fixing hole 121 . In the specification B, the transmission mechanism side lever 144 is connected to the drain valve switching motor side lever 152a via the relay component 153 . As a result, the washing machine 200 according to the specification B uses the driving force of the drain valve switching motor 152 to simultaneously perform the opening/closing operation of the drain valve 112 and the switching of the transmission destination of the driving force of the transmission mechanism 140 . Note that the clutch switching motor fixing hole 122 is not used.

The peripheral configuration of the holding unit 120 in the specification B will be described below.

A transmission mechanism 140 is arranged substantially in the center of the holding portion 120 so that the washing/dehydration shaft 141 is connected to the center of the washing/dehydration tub 106 . The transmission mechanism 140 according to the specification B is screwed to the holding portion 120 at the transmission mechanism screw fastening portion 146 at a position rotated 180 degrees from the transmission mechanism 140 according to the specification A.

As described above, the relay component 153 has the relay component engaging portion 153a formed on the surface facing the transmission mechanism 140, and can be engaged with the transmission mechanism side lever engaging portion 144a. In the specification B, the transmission mechanism side lever engaging portion 144a and the relay component engaging portion 153a are engaged with each other by directing the transmission mechanism side lever 144 toward the relay component 153 side. Thereby, the drain valve switching motor 152 can operate both the transmission mechanism side lever 144 and the drain valve 112 at the same time.

In this way, since washing machine 200 can apply holding portion 120, transmission mechanism 140, drain valve switching motor 152, etc., which are common parts with washing machine 100, manufacturing costs can be reduced.

The cleaning method of the washing machine 100 and the washing machine 200 configured as described above will be described below.

(Washing method)
Conventionally, the following two types are known as washing methods for vertical washing machines.

The first type of washing method is a method in which the laundry is washed by rotating the agitating blade 107 and using both the water flow generated by the rotation and the action of the agitating blade 107 to directly move the laundry. The first type of washing method is a common washing method for washing machines equipped with agitating blades.

The second type of washing method is a method in which the washing and dehydrating tank 106 and the stirring blade 107 are rotated while the water tank 104 is filled with water. In this method, the centrifugal force causes the washing water to pass through the laundry, and the centrifugal force causes the water flow rising inside the water tank 104 to hit the water tank cover 104a, and the water is sprayed inside the washing and spin-drying water tank 106 to wash the laundry. Washes the laundry both with the action of In the second type of washing method, the washing is not moved by the agitating blade 107, so that the washing effect can be obtained while suppressing damage to the washing fabric, and is suitable for washing delicate materials.

Since the washing machine 100 can perform the opening/closing operation of the drain valve 112 and the switching of the transmission destination of the driving force of the transmission mechanism 140 independently, the washing/drying tub 106 and the stirring blade 107 are rotated with the drain valve 112 closed. can be driven. Therefore, the washing machine 100 can rotate the washing and dewatering tub 106 while the water tub 104 is filled with water, so that the second type of washing method can be implemented. Since the washing machine 100 can implement both the first type of washing method and the second type of washing method, it is mainly manufactured as a high-end model.

The washing machine 200 simultaneously performs the opening/closing operation of the drain valve 112 and the switching of the transmission destination of the driving force of the transmission mechanism 140 by the driving force of the drain valve switching motor 152 . Therefore, when the drain valve 112 is closed, the washing and dewatering tub 106 cannot be driven to rotate, and the second type of washing method cannot be performed. Since the washing machine 200 is not provided with the clutch switching motor 150, the material cost can be reduced.

Washing machine 100 and washing machine 200 according to the present disclosure can share parts in the configuration around transmission mechanism 140 .

(action, etc.)
As described above, in the present embodiment, washing machine 100 and washing machine 200 include water tub 104, washing/drying tub 106 rotatably disposed inside water tub 104, and washing/drying tub 106. A stirring blade 107 rotatably disposed at the bottom, a motor 130 for rotationally driving the stirring blade 107 and/or the washing and dehydrating tub 106 via a transmission mechanism 140, and communicating with the inside of the tub 104 to supply washing water. A holding portion provided at the outer bottom of the water tank 104, in which a drainage path 111 for discharging water, a drainage valve 112 for freely opening and closing the drainage path 111, a motor 130, a transmission mechanism 140, and the drainage path 111 are arranged. 120; The transmission mechanism 140 is formed so as to be attachable to the holding portion 120 in a plurality of orientations.

Accordingly, by changing the orientation of the transmission mechanism 140 and attaching it, it is possible to attach the component attachment configurations of the specification A and the specification B, respectively. Therefore, washing machine 100 with specification A and washing machine 200 with specification B can share parts.

As in the present embodiment, the transmission mechanism 140 is provided with a plurality of transmission mechanism screw fastening portions 146 which are formed to be attachable to the holding portion 120, and the transmission mechanism screw fastening portions 146 are arranged to be point symmetrical. may be placed.

Thereby, the transmission mechanism 140 can be screwed in a plurality of directions.

As in the present embodiment, the transmission mechanism 140 has a transmission mechanism-side lever 144 having a transmission mechanism-side lever engaging portion 144a formed at a position of a predetermined length r, and the holding portion 120 or the outer bottom portion of the water tank 104. , a drain valve switching motor fixing hole 121 and a clutch switching motor fixing hole 122 may be formed on an imaginary tangent line E to an imaginary circle C having a predetermined length r from the transmission mechanism 140 .

Accordingly, by changing the orientation of the transmission mechanism 140 , the clutch switching motor 150 or the drain valve switching motor 152 can operate the transmission mechanism side lever 144 .

As in this embodiment, the relay part 153 that connects the drain path 111 and the drain valve switching motor 152 is provided. A joining portion 153a may be formed.

As a result, the drain valve switching motor-side lever 152 a and the transmission mechanism-side lever 144 can be connected via the relay component 153 . Therefore, in washing machine 200, the same drain valve switching motor 152 as in washing machine 100 can be employed.

As in the present embodiment, the switching motor fixing portion includes the drain valve switching motor fixing hole 121 and the clutch switching motor fixing hole 122 so as to correspond to a plurality of mounting orientations of the transmission mechanism 140. You may make it form in a position.

As a result, the holding portion 120 has a shape in which the switching motor can be fixed regardless of whether the specification A or the specification B is used.

(Other embodiments)
As described above, Embodiments 1 and 2 have been described as examples of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this.

Therefore, other embodiments will be exemplified below.

In Embodiment 1, washing machine 100, which is a vertical washing machine, has been described as an example of the washing machine. The washing machine is not limited to vertical washing machines as long as it includes a water tub and a control device that are swingably supported in a housing. The washing machine may be a twin tub washing machine.

In Embodiment 1, the motor 130 disposed below the transmission mechanism 140 has been described as an example of the motor that rotates the stirring blade and/or the washing and dehydrating tub via the transmission mechanism. The motor is not limited to the motor 130 provided below the transmission mechanism 140 as long as it is connected to the transmission mechanism. For example, it may be a motor connected to a transmission mechanism via a belt and pulleys. In that case, it is necessary to fix the motor to the holding portion, so the mounting structure of the holding portion according to specification B is desirable.

In the first embodiment, as an example of the holding portion, the holding portion 120 in which the transmission mechanism 140, the clutch switching motor 150, the drain path 111, the drain valve switching motor 152, and the like are arranged has been described. The holding part has a motor and a transmission mechanism fixed thereto, and may be disposed on the outer bottom of the water tank. Therefore, the transmission mechanism 140 , the clutch switching motor 150 , the drainage path 111 and the drainage valve switching motor 152 may be directly fixed to the outer bottom of the water tank 104 . In addition, as the switching motor fixing portion, screwing in the drain valve switching motor fixing hole 121 and the clutch switching motor fixing hole 122 has been described. The switching motor fixing portion may have any structure as long as the switching motor can be attached to the holding portion or the outer bottom portion of the water tank on the virtual tangential line. Therefore, the drain valve switching motor fixing hole 121 and the clutch switching motor fixing hole 122 may be provided in the outer bottom portion of the water tank 104 or may be provided in both the holding portion 120 and the water tank 104 .

In Embodiment 1, screwing has been described as an example of a method of fixing the transmission mechanism fixing portion, the switching motor fixing portion, and the like. The fixing method is not limited to screwing, and other fixing means such as claw fitting may be used.

In the first embodiment, the transmission mechanism 140 that can be mounted by being inverted 180 degrees has been described as a configuration that allows mounting in a plurality of orientations of the transmission mechanism. The transmission mechanism is not limited to a 180-degree orientation as long as it can be attached in a plurality of orientations.

INDUSTRIAL APPLICABILITY The present disclosure is applicable to washing machines having a motor below the water tub. Specifically, the present disclosure is applicable to vertical washing machines, twin-tub washing machines, and the like.

100 Washing machine 101 Outer frame 102 Upper frame 103 Lid 104 Water tank 104a Water tank cover 105 Suspension 106 Washing and dehydrating tank 107 Stirring blade 108 Fluid balancer 109 Dehydration hole 110 Control means 111 Drain path 112 Drain valve 120 Holding part 121 For drain valve switching Motor fixing hole 122 Clutch switching motor fixing hole 123 Transmission mechanism fixing hole 130 Motor 140 Transmission mechanism 141 Washing and dewatering shaft 144 Transmission mechanism side lever 144a Transmission mechanism side lever engaging portion 145 Flange 146 Transmission mechanism screw fastening portion 150 For clutch switching Motor 150a Clutch switching motor-side lever 150b Clutch switching motor-side lever engaging portion 152 Drain valve switching motor 152a Drain valve switching motor-side lever 153 Relay component 153a Relay component engaging portion 200 Washing machine

Claims (1)

a water tank, a washing and dehydrating tank rotatably disposed inside the water tank, a stirring blade rotatably disposed at the inner bottom of the washing and dehydrating tank, and a transmission mechanism for the stirring blade and /or a motor that rotates the washing and dehydrating tub, a drainage path that communicates with the inside of the tub and drains the washing water, a drainage valve that opens and closes the drainage path, the motor and the transmission mechanism. is fixed, and a holding part disposed on the outer bottom of the water tank,
The transmission mechanism is provided with a plurality of transmission mechanism fixing portions that can be attached to the holding portion. It can be attached in two directions to the holding part ,
The transmission mechanism has a lever having a lever engaging portion formed at a position of a predetermined length, and configured to switch the transmission destination of the driving force from the motor by the operation of the lever,
A switching motor fixing portion is formed in the holding portion so that the switching motor can be mounted on a virtual tangential line from the transmission mechanism to the virtual circle having the predetermined length,
A relay component for connecting the drain valve and the switching motor is provided, and the relay component is formed with a relay component engaging portion for engaging with the lever engaging portion,
The switching motor fixing portion is formed at two positions so as to correspond to two mounting directions of the transmission mechanism,
The holding part has the following two specifications,
Specification A: The switching motor is disposed on both of the switching motor fixing portions formed at two positions, and the transmission mechanism is arranged so that the lever is located on the opposite side of the relay part engaging portion. one of the switching motors controls the opening and closing of the drain valve, and the other of the switching motors switches the transmission destination of the driving force from the motor by controlling the lever.
Specification B: The switching motor is disposed only on the side of the switching motor fixing portion formed at two positions that controls the opening and closing of the drain valve, and the transmission mechanism is such that the lever is connected to the relay part. The switching motor is disposed so as to be positioned at the engaging portion, and the switching motor controls the opening and closing of the drain valve, and also switches the transmission destination of the driving force from the motor by controlling the lever.
configurable ,
Washing machine.

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