JPS60163695A - Lid opening and closing apparatus of washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a lid opening/closing device for a washing machine used in general households.

Conventional Structure and Problems In recent years, there has been a trend to install a dryer 3 above a washing machine 1 via a unit stand 2, as shown in FIG. This is an effective use of limited space, and this method is expected to increase in the future. The first problem when installing the dryer 3 above the washing machine 1 is the height of the input port 4 of the dryer 3. If the input port 4 is high, it will be inconvenient to put clothes in and take them out. Moreover, it is difficult to see the clothes in the dryer 3 and it is easy to forget to take them out. This problem can be solved by lowering the installation position of the dryer 3, but the gap between the two becomes smaller and it becomes difficult to operate the switches on the control unit 6 installed behind the top plate 5 of the washing machine 1. Become free.

Therefore, we reduced the thickness of dryer 3 and added 1
Even when the washing machine 4 is in a lowered state, the operability of the washing machine 1 is not impaired. In addition, by installing the operation part 6 on the front of the top plate 60, it is possible to control the load. was installed at a fairly low position, but the trench was not placed low enough, and by making the dryer 3 thinner, the upper surface 7 of the dryer 3 was placed higher than before. In some cases, the dryer 3 cannot be installed above the washing machine 1.

In addition, the conditions regulating the lower limit when the dryer 3 is installed low are the length 11 from the rotation axis 9 of the lid 8 to the tip of the lid 8 when the operating section 6 is provided in front of the top plate 5. The total number of sub-boxes (approximately 501n, . . . ) in which the tip of the lid 8 is touched in order to close the lid 8 is equal to the distance 12 from the bottom surface of the stand 10 on which the dryer 3 of the unit stand 2 is installed to the top plate. This is the lower limit at which the dryer 3 can be installed lowest.

Purpose of the Invention The purpose of the present invention is to lower the installation height of the dryer when it is installed above the washing machine via a unit stand, to facilitate loading and unloading of clothes, and to smoothly open and close the lid. It is something to do.

Structure of the Invention The lid opening/closing device for a washing machine according to the present invention has a helical spring rotatably attached to a rib body that protrudes toward the rear of the lid. is provided with a lip that protrudes downward, and the lower ends of the ribs are connected to each other by a hinge mechanism, and when the lid is closed, one end of the lip is brought into contact with the other, and when the lid is opened, the hinge mechanism allows the lower ends of the ribs to be brought into contact with each other. It has a structure in which the lids are stacked one on top of the other.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In FIG. 2, 8 is a lid that is rotatably supported on the top plate 5, and 1Q is a rib body that projects rearward of the lid 8, and a hole 1 that rotatably attaches a helical spring 11 that is biased at its tip.
2, and the other end of the helical spring 11 is rotatably attached to the top plate 5.

When the lid 8 is closed, the rib body 1 is
o is applied a force F1, and if the angle between the force F1 and the straight line connecting the rotation axis 9 of the lid 8 and the hole 12 provided in the rib body 10 is θ1, then the lid 8 is F at the position of the hole 12. , sinθ1
The lid 8 receives the force of rotation @l19 as a fulcrum, and receives the force of counterclockwise rotation, that is, the horn in the closing direction. Assuming that the distance between the center of the rotating shaft 9 and the center of the hole 12 is 13, the force that the lid 8 receives becomes a moment of F1 sin θj As.

When opening M8, when the direction of the force applied by the helical spring 11 is on the straight line connecting the rotating shaft 9 and the hole 12, the lid 8 is rotated by the helical spring 11 about the rotating shaft 9 as a fulcrum. This positional relationship where no force is applied is called a dead point.

When the lid 8 is completely open, the angle θ3 between the force F3 and force F3 received from the helical spring 11 and the straight line connecting the rotating shaft 9 and the hole 12 is F3 sin θ3 with the rotating shaft 9 as the fulcrum.
13 and receives a force to open the lid in the direction of clockwise rotation.

In this way, the direction of the moment force applied to the lid 8 is reversed at the dead point, and when the dead point lid 8 is closed, the force is applied in the closing direction, and when the treadle 8 is open from the dead point, the force is applied in the opening direction. receive.

The lid 8 is divided into a 1111 half and a rear half, and FIG. 3 is a sectional view of the divided portion, and the two are connected by a hinge mechanism such as a hinge 12. In the case of the hinge 12, when it is molded, it is molded in the shape shown in FIG. 4, so there is no need to carefully mold the two parts to provide pivot support, and the hinge 12 can be manufactured without increasing the number of parts.

When the lid 8 is closed, the rear half of the lid 8 is biased by the helical spring 11 and receives a counterclockwise rotation force about the rotating shaft 9, and this force is applied via the hinge 12. It is transmitted to the front half of lid 8. Since the front end of the lid 8 is still in contact with the top plate 6, it receives the force of clockwise rotation about the contact part 13, and the rib 14 of the hinge 12 on the front half of the lid 8 is in contact with the top plate 6. The flat portions 16 of the two portions come into contact with the ribs, and the flat portions 16 of the two portions form a flat plate without any gaps, just as if they were on the same plane.

While opening the lid 8, the front and rear halves of the lid 8 remain on the hinge 1.
2 as a fulcrum and are still in contact at the lip 14, the front half receives the moment of clockwise rotation using the hinge part 12 as the fulcrum caused by the hand opening the lid 8, and the rear half receives the moment of right rotation using the rotation axis 9 of the helical spring 11 as the fulcrum. A rotational moment is applied.

'; Open 48, and when you pass the dead point, the lid 8 will open.
As the direction of the force applied to the rear half changes and a clockwise rotation moment is applied, the lid 8 begins to break at the hinge part 12 as shown in state B in Figure 5, and completely breaks as shown in state C. It will be folded in two.

The setting of the put point is 11, which is the length from the rotation axis 9 of the lid 80 at the front tip, and 14, which is the length from the rotation axis 9 of the lid 8 to the hinge part 12 of the rear end. Since the angle θ is broken in two after passing through θ(sin""), the height of Meng 8 from the top surface of the top plate is βsinθ, and after passing the dead point 1)11, the height of Meng 8 from the top surface is βsinθ, and after it is broken in two, it is 7! 4 is the highest height, so l sinθ
If <14, then the distance between the top plate 6 and the base part 10 of the unit base 2 can be 12244. This means that compared to a washing machine with a single-plate lid 8 of the same length 11, the washing machine 1 with a two-piece lid 8 has a dryer installed at the upper position of 1, -. 1. can be lowered only. 11
The dimensions are about 30 times, so 7! Even if , = 15, it can be lowered by about 15 ivy.

In addition, since the helical spring 11 is used to open and close the lid 8, it prevents the lid 8 from vibrating and generating noise due to vibrations during dehydration, and prevents contact with the lid 8 when putting in and taking out clothes even when it is open. Once the lid 8 is closed, there is no possibility that the lid 8 will bounce back due to excessive force when opened and close again.

Moreover, the lid 8 does not rise halfway up.

In addition, since the dead point is set near the opening angle of the lid 8 of 300°, unlike before the lid 8 will not close unless the opening angle is 90° or more. The lid 8 can be opened completely.

Effects of the Invention As is clear from the above description, the present invention provides the following effects.

(a) When a dryer is installed above a washing machine through a single unit, the dryer can be installed at a lower position, making it easier to take clothes in and out of the dryer, and eliminating the need to forget to take clothes out.

(vl) During dehydration, the spring is used to apply force to the lid in the closing direction, so the lid is less likely to vibrate or make noise compared to conventional structures.

(c) When putting in and taking out clothes, the lid does not come into contact with the lid and close.

2) When opening the lid, the force will not cause the lid to bounce back and close again. Also, the lid does not discontinue.

(E) Unlike conventional products, the lid does not close unless you open it more than 900 degrees; once you open it at a certain angle, it can be opened completely by the force of the spring.

(f) If a hinge mechanism is used as the hinge mechanism, the lid can be folded in two, so there is no need for separate parts to separate the lid into two parts and connect them, thereby reducing costs.

[Brief explanation of drawings]

FIG. 1 is a side view of a conventional dryer installed above a washing machine via a unit stand; FIG. Fig. 2 is a plan view of the same, Fig. 3 is an enlarged sectional view of the main part, Fig. 4 is a sectional view of the main part showing the shape of the lid when a hinge mechanism is used as the hinge mechanism of the lid, and Fig. 5 is a sectional view of the main part. The figure is a side view of the main part showing the movement of the same sound when opening and closing. 8... Lid, 10... Lip body, 11...
・Hingle spring, 12...Hinge, 14...
...Reply. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 7 Figure 2

Claims (1)

[Claims] A helical spring is rotatably attached to a rib body that protrudes toward the rear of the lid, and approximately the center of the lid is divided into two parts (I)M into the front and back, a lip that protrudes downward is provided on both sides, and the lower end of this lip is attached to a hinge mechanism. A lid opening/closing device for a washing machine, in which the upper end of the lip abuts when the lid is closed, and the two halves of the lid are overlapped by a hinge mechanism when the lid is opened.