JPH076454U - Open / close door hinge structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a hinge structure for an opening / closing door that allows easy mounting work of the opening / closing door. [Structure] A hinge portion formed at one edge of the opening / closing door 11,
The hinge receiving portion is formed at the opening edge of the main body 12. The hinge portion is composed of a pair of support shafts 16 and a hinge spring 18, and is provided on both sides of the opening / closing door 11. The support shaft 16 is provided on the side of the opening / closing door 11 so as to be movable back and forth. The hinge spring 18 connects the support shaft 16 to the opening / closing door 1
The opening / closing door 11 is biased in the direction of closing the opening 12a of the main body 12 while being biased to the side of 1. The hinge receiving portion is composed of a guide groove 22 and an engagement receiving portion 23. The guide groove 22 has an inclined surface that is pushed inward while the support shaft 16 slides. The engagement receiving portion is provided so as to be connected to the guide groove 22, and the support shaft 16 is provided.
Is returned to the original position by the biasing force of the hinge spring 18 and is engaged.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hinge structure of an opening / closing door used in a dishwasher, a dish dryer or the like.

[0002]

[Prior art]

 Conventionally, for example, a hinge structure as shown in FIG. 7 has been adopted for an opening / closing door used in a dishwasher or the like. In this hinge structure, substantially U-shaped supporting bearings 2 and 2 are provided on both sides of the lower edge of the opening of the main body of the washing machine, and locking portions 3 (one of which is shown in FIG. (Not shown) is formed.

On the other hand, on both inner surfaces of the lower side of the opening / closing door 4, support shafts 5, 5 are provided so as to project toward the inner space. Further, coil springs 6 and 6 are incorporated inside the support shafts 5 and 5, one end of each coil spring 6 and 6 is fixed to the opening / closing door 4, and the other end thereof projects from below to hold the locking portion. It is adapted to be locked to 3 and 3, respectively.

In the opening / closing door 4, the supporting shafts 5, 5 are engaged with the supporting bearings 2, 2 and at the same time, the ends of the coil springs 6, 6 are engaged with the engaging portions 3, 3, respectively. The washing machine main body 1 is rotatably mounted around the support shafts 5 and 5, and is biased by the coil springs 6 and 6 so as to close the opening 1a of the washing machine main body 1.

[0005]

[Problems to be solved by the device]

 However, as described above, when the opening / closing door 4 is attached to the main body 1 of the washing machine, the ends of the coil springs 6 are manually formed inside the main body 1 of the washing machine with a narrow gap formed below the main body 1 of the washing machine. Since it is necessary to lock the locking portions 3 and 3, respectively, there is a problem that the workability is extremely poor. The present invention has been made in view of the above problems, and an object thereof is to provide a hinge structure for an opening / closing door that facilitates mounting work of the opening / closing door.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention makes it possible to rotate the opening / closing door around the main body by engaging a hinge part formed at one edge of the opening / closing door with a hinge receiving part formed at the opening edge of the main body. In the hinge structure of the opening / closing door that is attached to the main body to open / close the opening of the main body, the hinges are provided on both sides of the opening / closing door, and a pair of support shafts that can move back and forth to the side of the opening / closing door. And a coil spring that biases the opening and closing door toward the side of the opening and closing door and closes the opening of the main body, while the hinge receiving part moves inward while the support shaft slides. A guide groove having an inclined surface to be pushed into, an engagement receiving portion provided adjacent to the guide groove, the support shaft returning to the original position by the biasing force of the coil spring and engaging with the support shaft, and one end of the coil spring. And a holding portion to which is locked.

[0007]

[Action]

 According to the above configuration, when the support shaft is moved along the guide groove toward the engagement receiving portion, the support shaft is pushed inward against the urging force of the hinge spring, and the engagement receiving portion receives the original force. Return to the position of and engage with this engagement receiving portion. As a result, the open / close door is attached to the main body so as to be rotatable around the support shaft, and in this attached state, the open / close door closes the opening of the main body by the biasing force of the hinge spring.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an opening / closing door 11 and a washing machine body 12 of a dishwasher. The opening / closing door 11 is rotatably attached to the washing machine body 12 by a hinge structure according to the present invention.

The hinge structure is shown in FIG. In the opening / closing door 11, the first support frames 11a are fixed to the inside of the lower portions on both sides. A lower end portion of each first support frame 11a extends downward, and a front end portion thereof is bent inward (opposing direction) to form a stopper portion 13 (see FIG. 3). Further, a mounting plate 14 having a substantially U-shaped cross section is provided at the lower end of the first support frame 11a. A through hole 15 is formed in the center of both end surfaces of the mounting plate 14, and a support shaft 16 is inserted therein. A protrusion 17 (see FIG. 3) is provided on the support shaft 16 so that the support shaft 16 does not drop off from the side surface 14 a of the mounting plate 14. A coil spring 18 is provided between the protrusion 17 and the side surface 14b, and the support shaft 16 is biased so as to project laterally from the side surface 14a. One end 18a of the coil spring 18 is locked to the upper surface edge of the mounting plate 14, and the other end 18b projects below the opening / closing door 11.

On the other hand, in the main body 12 of the washing machine, a support frame 19 is provided on the inner surface of the lower front portion of the outer wall 12a. An extension portion 20 is formed on the front end surface of the support frame 19, and the extension portion 20 is located above a lower step portion 21 formed on the front surface of the main body 12 of the washing machine. A guide groove 22 and an engagement hole 23 are formed in the extension portion 20, and the guide groove 22 is shaped so as to gradually spread laterally as it goes upward of the extension portion 20. Further, the holding plate 24 is formed by bending the lower edge portion of the extending portion 20 inward, so that the end portion 18b of the coil spring 18 abuts. Further, a stopper receiving portion 25 is laterally extended at an upper edge of the supporting frame 19 in the vicinity of the extending portion 20, and the stopper portion 13 abuts when the opening / closing door 20 is opened. It is designed to prevent rotation.

In the dishwasher having the above-mentioned hinge structure, the main body of the washing machine can be easily installed simply by disposing the opening / closing door 11 so as to close the opening portion 12b of the washing machine body 12 and moving it downward. The opening / closing door 11 can be attached to 12.

That is, when the opening / closing door 11 is moved downward in the state shown in FIG. 2, since the end portion 18 b of the coil spring 18 is formed in a curved shape, the tip end portion is formed at the edge portion of the holding plate 24. From the hooked state, it gradually bends and comes into pressure contact. Then, the support shaft 16 contacts the guide groove 22 and moves downward while being pushed inward against the biasing force of the coil spring 18. After that, the support shaft 16 is returned to its original position by the urging force of the coil spring 18 in the engagement hole 23, and is fitted and inserted, and the opening / closing door 11 is rotatably supported around the support shaft 16. In this state, one end 18a of the coil spring 18 is pressed against the mounting plate 14 and the other end 18b is pressed against the holding plate 24, so that the opening / closing door 11 is attached so as to close the opening 12b of the main body 12 of the washing machine. (See FIG. 5).

The opening / closing door 11 thus attached to the main body 12 of the washing machine is rotated around the support shaft 16 against the elastic force of the coil spring 18 until the stopper portion 13 comes into contact with the stopper receiving portion 25. It can be moved, which allows the tableware to be taken in and out (see Fig. 6).

[0014]

[Effect of device]

 As is clear from the above description, according to the hinge structure of the opening / closing door according to the present invention, the door is rotatably attached to the main body only by engaging the support shaft with the engagement receiving portion through the guide groove. Therefore, the mounting work becomes easy and the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a dishwasher to which a hinge structure according to the present invention is applied.

FIG. 2 is a partially exploded perspective view showing a hinge structure according to the present invention.

FIG. 3 is a partial front sectional view showing a hinge structure according to the present invention.

FIG. 4 is a partial plan sectional view showing a hinge structure according to the present invention.

FIG. 5 is a side view showing a closed state of a door having a hinge structure according to the present invention.

FIG. 6 is a side view showing an open state of a door having a hinge structure according to the present invention.

FIG. 7 is an exploded perspective view of a dishwasher including a hinge structure according to a conventional example.

[Explanation of symbols]

11 ... Opening / closing door, 12 ... Washing machine main body, 16 ... Spindle, 18 ...
Coil spring, 22 ... Guide groove, 23 ... Engagement hole (engagement receiving portion).

Claims (1)

[Scope of utility model registration request] 1. A hinge portion formed at one edge of the opening / closing door,
A hinge structure for an opening / closing door, wherein the opening / closing door is rotatably attached to the main body to open / close the opening of the main body by engaging a hinge receiving portion formed at an opening edge portion of the main body. A pair of support shafts, which are provided on both sides of the open / close door and can move back and forth to the side of the open / close door, and the support shafts are urged to the side of the open / close door, and in the direction in which the open / close door closes the opening of the main body. On the other hand, the hinge receiving portion is provided with a guide groove having an inclined surface that is pushed inward while the support shaft slides, and the hinge shaft is provided adjacent to the guide groove. A hinge structure for an opening / closing door, comprising: an engagement receiving portion that returns to its original position and is engaged by the biasing force of a coil spring, and a holding portion to which one end of the coil spring is locked.