JP2020171454A - Washing machine - Google Patents

Abstract

To provide a washing machine which has excellent cleanability and designability, and which can close a lid body with a simple structure.SOLUTION: A washing machine includes: a lid spring 16 for energizing a lid body 3 to the opening side; and a damper 22 for attenuating the rotation during an opening/closing operation of the lid body 3. The lid body 3 is constituted by a lid upper plate 7, a lid frame body 8 and a lid lower cover 9, and at the lid frame body 8, a lid frame body opening part 11 is provided. In the lid frame body opening part 11, an opening area on the rotary shaft side of the center in the frontward/backward direction of the lid frame body 8 is formed to be larger than an opening area on the front side of the center in the frontward/backward direction of the lid frame body 8. The component weight of the lid body 3 is reduced, and the center of gravity of the lid body 3 is positioned being separated from the rotary shaft; thereby, torque necessary for closing the lid body 3 is acquired.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a washing machine for washing laundry.

The vertical type washing machine has an opening formed on the upper surface of the housing, and the lid is opened to allow laundry to enter and exit the opening.

In recent years, there has been a tendency for a washing machine having a flat design that uses a glass material as a member constituting the surface of the lid to be preferred. By adopting the glass material, the weight of the lid is heavier than that of the lid made of conventional resin parts.

Therefore, it is necessary to consider the operability when opening and closing the lid, and in order to prevent the lid from being shocked to close, a spring and a damper are provided in the rotating portion (for example, Patent Document 1). reference).

Japanese Unexamined Patent Publication No. 2009-207651

However, it is expected that the forces of springs and dampers provided in washing machines will vary from part to part. It is also expected that the damper performance will change depending on the surrounding environment such as temperature. Due to variations in the forces of springs and dampers and changes in performance, the rotation of the lid may stop when the lid is not completely closed.

The present disclosure solves the above-mentioned conventional problems, and provides a washing machine which is excellent in cleanability and design and can close a lid with a simple configuration.

The washing machine in the present disclosure includes a washing machine main body, an opening for entering and exiting laundry formed in an upper frame body constituting the upper part of the washing machine main body, and a lid that rotatably closes the opening. The lid spring includes a lid spring that urges the lid body in the opening direction, and a damper that damps the rotation of the lid body in the closing operation direction. It has a lid frame body mounted on the back surface of the plate and a lid undercover cover mounted on the back surface of the lid frame body to form the back surface, and a lid frame body opening is formed in the lid frame body.

Further, the lid frame opening is formed so that the opening area on the rotation center side of the lid frame body in the front-rear direction is larger than the opening area on the front side of the lid frame body in the front-rear direction. ..

As a result, it is possible to improve the cleanability and design, increase the torque in the closing direction of the lid, and suppress the malfunction when the lid is closed.

External perspective view of the closed state of the lid of the washing machine according to the embodiment of the present invention. External perspective view of the lid of the washing machine in the open state An exploded perspective view of the lid of the washing machine An exploded perspective view showing the shaft structure of the lid of the washing machine. Disassembled perspective view of the main part of the washing machine

The present disclosure discloses a washing machine main body, an opening for entering and exiting laundry formed in an upper frame body constituting the upper part of the washing machine main body, a lid body that rotatably closes the opening, and the lid body. The lid spring is provided with a lid spring for urging the lid in the opening direction and a damper for dampening the rotation of the lid in the closing operation direction. The lid has a lid upper plate constituting an upper surface and a back surface of the lid upper plate. The lid frame body has a lid frame body attached to the lid frame body and a lid under-cover cover attached to the back surface of the lid frame body to form the back surface, and the lid frame body is provided with a washing machine for forming an opening of the lid frame body. To do.

Further, the lid frame opening is formed so that the opening area on the rotation center side of the lid frame body in the front-rear direction is larger than the opening area on the front side of the lid frame body in the front-rear direction. Provide a washing machine.

As a result, the weight of the part can be reduced and the position can be located away from the center of rotation, so that the torque in the closing direction of the lid can be increased, and the malfunction at the time of closing the lid can be suppressed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment.

(Embodiment)
FIG. 1 is an external perspective view of the lid of the washing machine in the closed state according to the embodiment of the present invention, and FIG. 2 is an external perspective view of the lid of the washing machine in the open state.

As shown in FIGS. 1 and 2, the upper frame 2 constituting the upper part of the washing machine main body 1 is provided with an opening 5 for taking in and out laundry, and a lid 3 for closing the opening openable and closable is provided. It is provided. A sensor (not shown) for detecting the open / closed state of the lid 3 is provided so that the washing operation is not performed in the open state of the lid 3.

Behind the upper frame body 2, an operation plate 4 for operating the washing machine is arranged. A water tank 6 is swingably supported inside the washing machine main body 1.

FIG. 3 is an exploded perspective view of the lid body, and FIG. 4 is an exploded perspective view showing the shaft structure of the lid body.

The structure of the lid 3 will be described with reference to FIGS. 3 and 4.

In the lid body 3, the lid upper plate 7 forming the upper surface is made of a glass material. The lid top plate 7 constitutes a colored and opaque design surface. The lid top plate 7 is attached to the lid frame 8 made of synthetic resin by an adhesive member 10 made of double-sided tape. A rising wall having a height substantially equal to the thickness of the lid upper plate 7 is provided on the outer periphery of the lid frame 8 toward the upper side, and the lid upper plate 7 is attached to the lid frame 8 in a state where the lid upper plate 7 is attached to the lid frame 8. The outer peripheral end face of 7 and the rising wall are assembled without a gap. Since the step between the lid top plate 7 and the rising wall of the lid frame 8 is small, the portion where dust collects is reduced, and the glass lid top plate 7 is not easily contaminated and has no unevenness, so that it can be easily cleaned. be able to.

The lid frame body 8 is formed with a lid frame body opening 11 at the center. The lid frame opening 11 is set to S1> S2, where C is the center line in the front-rear direction of the lid frame 8, the opening area behind C is S1, and the opening area in front of C is S2.

A shaft mounting plate 12 made of a metal steel plate is attached to the rear end of the lid frame 8 with a plurality of tapping screws 13 on the rotating shaft side. Shaft holes 15 formed in the shaft mounting plate 12 are provided on the left and right sides of the shaft mounting plate 12 to support the lid shaft 14. The lid spring 16 is held through the center of the coil of the lid spring 16 on the lid shaft 14, and the lid body 3 is urged in the opening direction by the urging force of the lid spring 16 to reduce the opening force of the lid body 3. The operability is improved.

A plurality of lid frame body claw holes 17 are provided on the upper side of the lid frame body 8, and a plurality of under lid cover claws 18 provided on the under lid cover 9 are locked to the lid frame body claw holes 17 to cover the under lid. 9 is attached to the lid frame body 8.

The under-lid cover 9 is provided with a recess in the center in order to improve the strength, and the recess is formed in a large arc at the corner to be easy to clean. Further, the under-lid cover 9 is attached to the lid frame 8 by the under-lid cover claw 18 provided on the upper surface, and holes, grooves, and dents that are difficult to clean are not formed on the lower surface of the under-lid cover 9, so that it is easy. Can be cleaned.

The lid body 3 is mainly composed of three parts, a lid upper plate 7, a lid frame body 8, and a lid lower cover 9. The lid body 3 can be configured without providing the under-lid cover 9, but in that case, the outer circumference of the lid body 3 has a thickness obtained by superimposing the lid upper plate 7 and the lid frame body 8, and the design However, the thickness of the lid 3 can be changed by configuring it with three parts, and the degree of freedom in design can be increased.

When the unitized lid body 3 is attached to the upper frame body 2, the lid body 3 is lowered downward at an angle close to substantially vertical, and the end portion of the lid spring 16 is inserted into the spring insertion hole of the upper frame body 2. It is inserted into 19 and placed on the upper frame body 2 for installation. Further, the lid shaft 14 is slid outward and inserted into the bearing holes 21 of the bearing portions 20 provided on the left and right sides of the upper frame body 2.

Further, after setting the damper holder 23 equipped with the damper 22 that imparts the damping action in the closing direction of the lid 3 to the center of the shaft mounting plate 12, the damper provided on the damper receiving portion 24 provided on the upper frame body 2. The damper cage 23 is slid into the receiving hole (not shown), the damper shaft 25 is inserted, and the damper cage 23 is screwed to the shaft mounting plate 12. Finally, the shaft cover 26 is attached to the shaft side of the lid body 3 and covers the rotating shaft portion of the lid body 3 to complete the assembly.

The operation of opening and closing the lid of the washing machine assembled as described above will be described.

During the opening operation of the lid body 3, no resistance force acts on the damper 22, and the lid body 3 can be opened with a light operating force by receiving the urging force of the lid spring 16. The shape of the lid spring 16 is set so that the lid body 3 is held in a state in which the lid body 3 is held in an open state while the lid body 3 is tilted backward from the vertical in a completely open state.

When the lid 3 is tilted forward during the closing operation of the lid 3, the torque in the closing direction due to the weight of the lid 3 is the sum of the urging torque of the lid spring 16 and the resistance torque of the damper 22. It is larger than the torque in the anti-closing direction with respect to the body 3. When the hand is released from the lid body 3, the lid body 3 slowly closes.

There is a risk that the performance of the lid spring 16 and the damper 22 will vary, and the performance of the damper 22 will vary depending on the temperature. In such a case, the closing operation of the lid 3 may be uncertain. Therefore, the weight and the position of the center of gravity of the lid 3 are always larger than the torque in the anti-closing direction due to the weight of the lid spring 16 and the damper 22 including the variation in the performance of the parts. Need to be adjusted.

In the present embodiment, the lid frame body 8 is provided with the lid frame body opening 11, and the lid frame body opening 11 has a center line in the front-rear direction of the lid frame body 8 as C and an opening area behind C. The opening area in front of S1 and C is set to S2, and S1> S2 is set.

By providing the lid frame opening 11, the center of gravity of the lid 3 can be positioned at a position away from the lid shaft 14, and the lid 3 can be closed by its own weight while reducing the weight of the lid 3. It is possible to secure the torque in the formation direction. Since the lid frame opening 11 is for setting the center of gravity of the lid 3 away from the lid shaft 14, S2 = 0 may be set, and a plurality of lid frame openings 11 may be formed. .. In the present embodiment, the lid frame opening 11 is formed in a rectangular shape, but it may be formed in a trapezoidal shape or a convex shape.

As described above, the washing machine according to the present invention is excellent in cleanability and design, and the lid body is completely formed by setting the center of gravity of the lid away from the rotation axis with an inexpensive component configuration. Therefore, the necessary torque can be obtained, and the trouble of the closing operation of the lid at the time of closing can be suppressed, so that it can be applied to applications such as a washer / dryer with a drying function and a dehydrator.

1 Washing machine body 2 Upper frame body 3 Lid body 4 Operation plate 5 Opening 6 Water tank 7 Lid top plate 8 Lid frame body 9 Under lid cover 10 Adhesive member 11 Lid frame body opening 12 Shaft mounting plate 13 Tapping screw 14 Lid shaft 15 Shaft hole 16 Lid spring 17 Lid frame body Claw hole 18 Under lid cover claw 19 Spring insertion hole 20 Bearing part 21 Bearing hole 22 Damper 23 Damper cage 24 Damper receiving part 25 Damper shaft 26 Shaft cover

Claims (2)

A washing machine main body, an opening for entering and exiting laundry formed in an upper frame body constituting the upper part of the washing machine main body, a lid body that rotatably closes the opening, and the lid body in the opening direction. A lid spring for urging and a damper for dampening the rotation of the lid in the closing operation direction are provided.
The lid has a lid upper plate forming an upper surface, a lid frame body attached to the back surface of the lid upper plate, and a lid lower cover attached to the back surface of the lid frame body to form the back surface. , A washing machine that forms a lid frame opening in the lid frame. The claim that the lid frame opening is formed so that the opening area on the rotation center side of the lid frame body in the front-rear direction is larger than the opening area on the front side of the lid frame body in the front-rear direction. The washing machine according to 1.

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