KR20010057194A - Door mounting device for microwave oven - Google Patents

Abstract

PURPOSE: A microwave oven door supporting device is provided to compact the structure of a door by using a small hinge unit, to smoothly open and close the door by using a torsion spring and to prevent the leakage of microwaves. CONSTITUTION: A door supporting device includes a doorframe(42) opened and closed upwardly and downwardly as centering on the lower part of a microwave oven, a hinge member(30) whose one end is connected to the front face of the microwave oven to support the doorframe, a shaft(32) rotatably inserted into one side of the doorframe or the hinge member to operate as a rotating shaft when a door is opened and closed, and a torsion spring(S) whose one end(Sa) is combined to the hinge member and the other end is combined to the doorframe. According to the insertion of the hinge member to the shaft and the rotatable combination of both ends of the shaft via a hinge bracket(40), the rotatable support of the door is realized. While opening the door, the torsion spring applies elastic restorative force to the door while the hinge member supports the door. The torsion spring makes the smooth opening and closing of the door. As the hinge member is small enough to be installed in the doorframe, the chock sealing structure for preventing the leakage of microwaves is protected. Therefore, the leakage of microwaves is prevented.

Description

Door mounting device for microwave oven

The present invention relates to a door of a microwave oven, and more particularly, to a door support device configured to open and close the door of the microwave oven in a vertical direction, and configured to prevent leakage of microwaves more simple configuration.

In general, a microwave oven door is generally configured to be opened and closed in a horizontal direction, that is, a cochlea. However, with the recent trend of built-in home appliances, microwave ovens are also required to be built-in microwave ovens built in kitchen furniture. In such a microwave oven, since the microwave oven is used in a state completely stored inside the kitchen furniture, it is preferable to configure the door to open and close in the vertical direction.

And when the door is configured to open and close in the vertical direction as described above, it is natural that the microwave supplied to the inside of the cavity does not leak to the outside due to the characteristics of the microwave oven. Therefore, when the door is supported by a structure in which link mechanisms are provided on both sides of the door, as in the method generally used in a gas oven range, there is a disadvantage in terms of preventing leakage of microwaves. That is, since a sealing structure such as a choke cover for preventing the leakage of microwaves on the inner side of the door of the microwave oven has to be changed by a link mechanism, it is not preferable in terms of preventing leakage of the microwaves. In addition, unlike the gas oven range, since the microwave oven is relatively small, it is preferable to incorporate a configuration for rotation inside the door.

The present invention is to satisfy the above requirements and conditions, and to provide a door support device that is configured to be more compact, to prevent the leakage of the microwave inside.

1 is an exemplary cross-sectional view showing the operation of the door of the present invention.

Figure 2 is an enlarged view of the hinge portion of the door of the present invention.

Figure 3 is an exemplary view showing a configuration for the rotation of the door according to the present invention.

Figure 4 is a partial perspective view showing the configuration for the rotation of the door according to the present invention.

Explanation of symbols on the main parts of the drawings

20 ..... Microwave oven front 30 ..... Hinge member

32 ..... Shaft 40 ..... Hinge Bracket

42 ..... Door Frame S ..... Torsion Spring

Door support device according to the present invention for achieving the above object, the door frame for opening and closing up and down about the lower side of the microwave oven; A hinge member supported inside the door frame and having one end fastened to the front of the microwave oven to support the door frame; A shaft rotatably inserted into one side of the door frame and the hinge member to act as a rotation shaft when the door is opened and closed; It is installed inside the door frame, one end is coupled to the hinge member, the other end is coupled to the door frame, and comprises a spring having an elastic restoring force when the door is opened.

The shaft supports the hinge member on a hinge bracket attached to an inner side of the door frame. The spring is composed of a torsion spring fitted to the shaft.

According to the present invention, it is possible to open and close the door of the microwave oven while rotating up and down about the shaft inserted into the hinge member of the lower portion, and furthermore attached to the door to prevent the leakage of microwaves by the miniaturized hinge device It does not affect the structure being constructed.

Next, the present invention will be described in more detail with reference to the embodiments of the present invention shown in the drawings.

1 shows a door opening and closing device according to the present invention. As shown, the door 10 of the microwave oven according to the present invention is configured to be opened and closed while rotating about the hinge member 30 on the lower side with respect to the front surface 20 of the microwave oven. And at the upper end of the door 10, the lock member 4 for fastening to the front surface 20 when a door is closed is provided.

As shown in FIG. 2, the inner end of the hinge member 30 is fixed to the front surface 20 of the microwave oven so that the entire door 10 is supported by the front surface 20. The hinge member 30 is rotatably supported by the door 10, and is configured to be rotatable in a vertical direction with respect to the front surface 20 of the microwave oven.

The hinge member 30 is rotatably supported by being fitted to the shaft 32 inside the door frame 42. As can be seen with reference to Figure 3, one end of the shaft 32 is rotatably inserted into the hinge member (30). In addition, both ends of the shaft 32 are inserted into the hinge bracket 40 fixed inside the door frame 42. Accordingly, the hinge 30 is rotatably inserted in one side of the shaft 32, and both ends of the shaft 32 are rotatably coupled to the hinge bracket 40 so that the entire door 10 is rotated. Is rotatably supported on the front surface 20 of the microwave oven.

The torsion spring S is inserted into the shaft 32. The torsion spring (S) is to generate an elastic restoring force so that the door (10) is closed again when opened downwardly around the shaft (32) coupled to the hinge member (30). Therefore, in order to generate such elastic restoring force, one end of the torsion spring S should be connected to the hinge member 30 and the other end should be connected to the door 20.

As shown, one end Sa of the torsion spring S is fixed to the hinge bracket 40 (see FIG. 4), and the other end Sb is connected to the hinge member 30 (FIG. 3). That is, when the door 10 is opened downward, the hinge member 30 is substantially kept fixed at the front surface 20, while the other part of the door is downwardly centered on the shaft 32. Since both ends of the torsion spring S are fixed to the hinge member 30 and other portions of the moved door, the elastic restoring force of the torsion spring S may act on the door 10. It will be possible.

In the illustrated embodiment, one end of the torsion spring (S) is coupled and fixed to the spring coupling hole (30a) formed in the hinge member 30 (see Fig. 2), the other end of the torsion spring (S) It is coupled to the spring coupling hole (30a) of the hinge bracket (40). Since the hinge bracket 40 is substantially fixed to the door frame 42, it is natural that the elastic restoring force of the torsion spring S is transmitted to the door 10.

And the torsion spring (S) is substantially installed inside the hinge bracket 40, and furthermore, it can be seen that the hinge bracket 40 is also installed in a portion on the rear side of the door frame 42. Thus, by forming a torsion spring (S) for imparting an elastic restoring force to the door 10 to the inner part of the door frame 42, the door is more compact overall and can prevent the leakage of microwaves It will be possible to provide a support structure.

Next, the opening and closing operation of the door according to the present invention configured as described above will be described.

When the door is first opened, the door is opened downwardly with respect to the shaft 32 inserted into the hinge member 30 installed at the lower portion. At this time, the hinge member 30 is in a fixed state, and only the door is rotated. As a matter of course, the hinge bracket 40 fixed to the door frame 42 is also rotated together. And one end of the torsion spring (S) is twisted while having an elastic restoring force.

When the user releases the door 10 again, the elastic restoring force of the torsion spring S acts on the door frame 40 through the hinge bracket 40. Therefore, the door will be closed upward by the elastic restoring force of the torsion spring (S).

As described above, the hinge member 30 and the hinge bracket 40 and the like are substantially provided at both side surfaces of the lower end of the door frame 42. In addition, it is preferable that the pair of torsion springs (S) are also provided in pairs on both sides of the lower end of the door frame.

As described above, according to the present invention, it is basic to generate an elastic restoring force for closing the door through the torsion spring (S) interposed on the inner surface of the hinge bracket 40 embedded in the interior of the door frame 42 It is technical idea.

Within the scope of such technical ideas, many other modifications are possible to those skilled in the art.

For example, in the illustrated embodiment, the torsion spring S is described through an embodiment in which the hinge bracket 40 is fixed to the door frame 42, but the embodiment is not limited thereto. It is also possible to form a structure corresponding to the hinge bracket 40 in the door frame 42, and then to install the shaft 30 and the spring (S) directly to the door frame.

According to the present invention constituted as described above, the door is opened and closed from the front of the microwave oven, the door is opened and closed using a torsion spring that is more compact and can be easily attached to the inside of the door frame. You can see that it is configured to smoothly. Therefore, by the smaller hinge device, the inside of the door frame is prevented from affecting the choke sealing structure for preventing the leakage of the microwaves, and it is natural to prevent the leakage of the microwaves. In addition, by providing a miniaturized device, of course, it can be applied more smoothly to the opening and closing of a small door such as a microwave oven.

Claims (3)

A door frame for opening and closing up and down about the lower side of the microwave oven; A hinge member supported inside the door frame and having one end fastened to the front of the microwave oven to support the door frame; A shaft rotatably inserted into one side of the door frame and the hinge member to act as a rotation shaft when the door is opened and closed; It is installed inside the door frame, one end is coupled to the hinge member, the other end is coupled to the door frame, the door support of the microwave oven, characterized in that it comprises a spring having an elastic restoring force when the door is opened. Device. The door support apparatus according to claim 1, wherein the shaft supports the hinge member on a hinge bracket attached to an inner side of the door frame. The door support apparatus according to claim 2, wherein the spring comprises a torsion spring fitted to the shaft.