KR20070065142A - Child rock knob structure for a mechanic microwave oven - Google Patents

Abstract

A child rock knob structure for a mechanic microwave oven is provided to be enabled after pressing a timer knob to be engaged with a timer only when time of the timer is positioned at "0"so that malfunction caused by children is prevented. A child rock knob structure for a mechanic microwave oven includes a timer(12) connected to a timer knob(14) to be driven. The timer has a minus-shaped protrusion(12a) formed at the center of the timer. The timer knob has a cylindrical protrusion with a minus-shaped recess(14a) corresponding to the protrusion of the timer. A torsion spring(13) is disposed between the timer and the timer knob. An end of the torsion spring is connected to the timer knob and the other end is fixed to a body of the microwave oven so that a predetermined distance between the timer knob and the timer is maintained and the timer knob returns to an initial position by the torsion spring after rotation by a predetermined angle. Since the timer knob is spaced apart from the timer at the initial position by the torsion spring, the timer knob is not engaged with the timer so that the timer is not driven by the timer knob.

Description

Child rock knob structure for a mechanic microwave oven}

1 is a side view schematically showing a connection structure of a timer and a knob of a mechanical microwave oven according to the prior art.

2 is a side view schematically showing a connection structure of a timer and a knob of a mechanical microwave oven according to the present invention.

Explanation of symbols on the main parts of the drawings

12: timer

12a: protrusion

13: torsion spring

14: timer knob

14a: groove

The present invention relates to a child lock knob structure of a mechanical microwave oven, and more specifically, to a child microwave lock structure of a mechanical microwave oven by applying a child lock structure to a timer of a mechanical microwave oven to prevent children from malfunctioning. It is about.

Microwave ovens are devices that generate high frequency radio waves, usually 2,450 MHz, through a device called a magnetron. Microwaves from the magnetrons of microwave ovens are guided into the cooker, or oven, and reflected by the surrounding metal walls and absorbed by food. The oven is a heating chamber of electrically sealed food.

On the other hand, microwaves penetrate air, glass, paper, and the like, but are reflected by metal and easily absorbed by food and water, and the absorbed electromagnetic energy is converted into heat to generate heat.

Microwave cooking as described above is used because the food itself heats more than a container because it is more efficient than other heating methods, the cooking time is shorter and less vitamins are destroyed. In order to use the microwave as a cooking utensil, in addition to the above basic components, safety and convenience should be taken into consideration.When the door is opened, a safety switch that never generates microwaves and a time to set an appropriate cooking time depending on foods Position switch, thermoswitch or humidity fuse to prevent accidents due to overheating provide the above functions.

1 is a side view schematically showing a timer and knob connection structure of a mechanical microwave oven according to the prior art.

Referring to FIG. 1, in the conventional mechanical microwave oven, an end portion of the timer knob 4 is directly connected to the timer 2.

Therefore, when the user grabs and rotates the handle of the timer knob 4, the timer 2 rotates according to the rotational force of the knob 4, and when the user releases the timer knob 4, the timer is rotated by the amount rotated up to that time. (2) is working.

However, according to the timer and knob connection structure of the conventional mechanical microwave oven having the structure as described above, if the child inadvertently rotates the timer knob 4, there is no child lock structure, so that safety accidents may occur due to operation or incorrect operation during operation. There was a problem that could be.

The present invention has been made to improve the problems in the prior art as described above, by applying a child lock structure to the timer of the mechanical microwave oven child lock of a mechanical microwave oven to prevent accidents caused by children malfunction It is about a knob structure.

According to a preferred embodiment of the present invention for achieving the above object, a timer for counting the time to operate the device for a predetermined time by the set position of the angle and having a protrusion in the front center; A timer knob formed in a central shape in the center and having a cylindrical protrusion having a groove engaged with the protrusion of the timer; A torsion spring interposed between the timer and the timer knob to maintain a predetermined interval, one end of which is fixed to the timer knob, and the other end of which is fixed to the body of the microwave oven. A lock knob structure is provided.

Preferably, the timer knob is in an inoperable state spaced apart from the timer by the torsion spring by the torsion spring in an initial state at a time position of zero. It is characterized in that it is configured to operate the timer after being combined with the protrusion of.

Hereinafter, with reference to the accompanying drawings will be described in detail the child lock knob structure of the mechanical microwave oven according to the present invention.

2 is a side view schematically showing a connection structure of a timer and a knob of a mechanical microwave oven according to the present invention.

2, according to the connection structure of the timer knob and the timer knob of the mechanical microwave oven according to the present invention, a timer 12 connected to the timer knob 14 and operated is provided.

At the center of the timer 12 is a projection 12a of the date form is formed. In addition, at the center of the timer knob 14 is formed a cylindrical projection having a groove-shaped portion 14a of the date that is engaged with the projection 12a of the timer 12.

In addition, a torsion spring 13 is interposed between the timer 12 and the timer knob 14. One end of the torsion spring 13 is connected to the timer knob 14 and the other end is fixed to the body of the microwave oven, although not shown, so that the timer knob 14 and the timer 12 have a predetermined interval. At the same time, the torsion spring 13 returns to its original position after the timer knob 14 is rotated by a predetermined angle.

Since the timer knob 14 is positioned at a predetermined interval from the timer 12 between the timer 12 and the timer 12 in the initial state (a position indicating 0 time), the timer ( The timer 12 is not operated by the timer knob 14 because it is not associated with 12). To operate the timer 12 through the timer knob 14, the timer knob 14 is moved forward. After pressing the torsion spring 13 by applying a predetermined force to couple the end of the timer knob 14 to the timer 12, the timer 12 may be operated through the timer knob 14.

The operation of the child lock knob structure of the mechanical microwave oven according to the present invention configured as described above will be described with reference to the accompanying drawings.

First, when the timer knob 14 is in the position indicating 0 hours, the user applies a predetermined force to the timer knob 14 forward when the timer knob 14 is to be operated. And the torsion spring 13 between the timer 12 and the protrusion 12a of the timer 12 are fitted into the protrusion groove 14a of the timer knob 14. When the timer knob 14 is rotated in this state, the combined timer 12 is also rotated together. The timer knob 14 is engaged with the timer 12 and once operated, is separated from the timer 12 while being pushed by the torsion spring 13 and automatically returns to the initial child lock state. The timer 12 is operated for a set time.

Thereafter, when the set time of the timer 12 ends and returns to the position of 0, the timer knob 14 is pressed by a predetermined force to operate the timer 12 again. The child 12 is not coupled to the protrusion 12a of the timer 12 and the groove 14a of the timer knob 14 even when the timer knob 14 is pressed except at the position of time “0”. It is not locked off.

As described above, according to the child lock knob structure of the mechanical microwave oven according to the present invention, it is possible to operate after combining the timer with the timer knob only when the specific condition, that is, the time of the timer is at the position of "0". Since it is possible, there is an effect that can prevent malfunction by children.

Although the present invention has been described based on the above-described preferred embodiment, the present invention is not limited thereto, and those skilled in the art will be able to make various modifications based on the appended claims.

Claims (2)

A timer that counts the time so that the device is operated for a predetermined time by a set position of the angle and includes a protrusion at a front center portion thereof; A timer knob formed in a central shape in the center and having a cylindrical protrusion having a groove engaged with the protrusion of the timer; And A torsion spring interposed between the timer and the timer knob to maintain a predetermined interval, one end of which is fixed to the timer knob and the other end of which is fixed to the body of the microwave oven; Lock knob structure. The method of claim 1, The timer knob is in an inoperable state spaced apart from the timer by the torsion spring at an initial state of zero time position. In use, the timer knob applies a predetermined force to the front to engage the groove with the protrusion of the timer. Child lock knob structure of the mechanical microwave oven characterized in that the timer can be operated after being.

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