JPH09101036A - microwave - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the fall of a microwave oven installed on a mounting table to be effectively prevented and further prevent a degree of freedom in design from being deteriorated. SOLUTION: A microwave oven is a type of oven in which the oven is installed at an upper surface 20a of a range table 20. A cord band 14 for bundling a power supply cord 13 fed out of a main body 11 of the microwave oven is arranged at a rear part of the main body 11 of the microwave oven. This cord band 14 is used as a fixing jig for fixing the main body 11 of the microwave oven to the range table 20. With this arrangement as above, after the main body 11 of the microwave oven is mounted at an upper surface 20a of the range table 20, the cord band 14 is fastened to and fixed to the rear surface of the rage table 20 with the fixing tool 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called countertop type microwave oven which is mounted on the upper surface of an installation table and installed.

[0002]

As shown in FIG. 7, a microwave oven of this type has an installation stand, for example, a range stand 1 as shown in FIG.
It is placed and installed on the upper surface of. A door 3 is provided on the front surface of the main body 2 of the microwave oven so as to be vertically rotatable about its lower end as a fulcrum. In the case of this configuration, the door 3 is often left open before or after the start of cooking. When the door 3 is opened, a child may pull the door 3 downward or hang on the door 3.

In such a case, as shown in FIG. 7, the pulling force of the child is W1, the distance between the pulling point and the front leg 4 of the microwave oven main body 2 is L1, and the center of gravity G of the microwave oven main body 2 is set. When the acting force (weight) is W2 and the distance between the center of gravity G of the microwave oven main body 2 and the front leg 4 of the microwave oven main body 2 is L2, when W1 · L1> W2 · L2,
The microwave oven main body 2 falls to the front side and falls from the microwave oven base 1.

However, most of the effective measures to prevent the fall of the microwave oven main body 2 have not been taken. Here, as a conventional fall prevention measure, the front leg portion 4 of the microwave oven main body 2 is arranged so as to be located as frontward as possible to reduce the rotational moments W1 and L1. However, with such measures, the fall prevention effect is almost ineffective when the size of the door 3 in the vertical direction is large. Also,
In order to perform sufficient cooling, it may be necessary to arrange heavy electric components in the front side of the microwave oven main body 2,
Also in this case, the fall prevention effect was not effective with the above measures. On the other hand, if the vertical dimension of the door 3 is reduced or a heavy electric component is placed behind the microwave oven main body 2, the shape of the door and the cooling structure of the electric component are greatly restricted. Therefore, there is a problem that the degree of freedom in design is considerably reduced.

Therefore, an object of the present invention is to provide a microwave oven which can effectively prevent the microwave oven mounted on the installation table from falling over, and which does not impair the degree of freedom in design.

[0006]

The microwave oven according to the present invention comprises:
A feature of the type that is mounted on the upper surface of the installation base and installed is that a fixing jig for fixing the microwave oven main body to the installation base is provided at the rear portion of the microwave oven main body.

According to the above means, after the microwave oven main body is placed on the upper surface of the installation table and installed, the microwave oven main body is fixed to the installation table by the fixing jig provided at the rear portion of the microwave oven main body. As a result, even if a child pulls the microwave oven door downward or hangs down on the door, if the pulling strength (breaking strength) of the fixing jig is sufficient, the microwave oven body will not fall down. It can be surely prevented. Further, in the case of this configuration, since the fixing jig is only provided at the rear part of the microwave oven main body, the degree of freedom in design does not decrease.

Further, in the above construction, it is preferable that the fixing jig is formed of a flexible member and can be used as a cord band for bundling the power cords led out from the microwave oven main body. Further, the fixing jig may be composed of an earth wire led out from the microwave oven main body and a fixing screw which is attached to an intermediate part of the earth wire and is screwed to the installation base. is there. Furthermore, it is also possible to consider that the fixing jig is composed of a fixing wire led out from the microwave oven main body and a fixing screw that is attached to the tip of this wire and is screwed to the installation base. To be

On the other hand, the height of the rear leg of the legs protruding from the bottom of the microwave oven main body is made lower than the height of the front leg, and It is preferable that the height position on the rear side is lower than the height position on the front side. According to this structure, the height position of the rear side of the bottom surface of the microwave oven main body is lowered, so that the arrangement position of the electric components disposed therein is also lowered. As a result, the position of the center of gravity of the microwave oven body is lowered, and it is more difficult to fall. In addition, if the height of the bottom surface on the rear side is lowered, the space for arranging the electric components, that is, the space on the rear side of the machine room becomes wider accordingly. Therefore, the cooling fan does not get in the way when arranging the heavy electric parts by moving them backward, so it becomes possible to move the center of gravity of the microwave oven to the rear as much as possible, and it falls. The prevention effect is increased. Moreover, in the case of the above configuration, the degree of freedom in design is hardly reduced.

Further, an adhesive tape is attached to the lower surface of the leg portion protruding from the bottom surface of the microwave oven main body so that the lower surface becomes the adhesive surface, or the lower portion of the leg portion is formed of a permanent magnet. Thus, it is a more preferable configuration to bond the leg portion to the upper surface of the installation base. According to this configuration, the legs are bonded to the upper surface of the installation table, and thus the microwave oven is less likely to tip over.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, as shown in FIG. 2, legs 12 are provided so as to project at four corners of the bottom surface of the microwave oven main body 11. A power cord 13 is led out from the lower left end of FIG. 1 on the rear surface of the microwave oven main body 11.

Here, at the right side of the lead-out portion of the power cord 13 on the rear surface of the microwave oven main body 11, for example, a cord band 14 as a fixing jig is provided with a band fixing pin 15 at its one end 16 (see FIG. 3). ) Is rotatably attached as a fulcrum. This cord band 14
Is made of a flexible member such as a resin member and has a sufficient tensile strength (breaking strength). As shown in FIG. 3, a large number of through holes 17 are formed in the cord band 14.

These many through holes 17 are through holes for fitting and fixing the stop pin portion 18 (see FIG. 3) provided at the other end of the cord band 14, and also a wood screw for fixing the installation base. It is a through hole for inserting and fitting a stopper 19 (see FIG. 1) such as. In this case, stop pin 1
The outer diameter of the large-diameter portion having a substantially spherical shape at the tip portion of 8 is configured to be slightly larger than the inner diameter of the through hole 17. And when shipping from the factory, the power cord 13
Are bundled by the cord band 14 in a folded state. At this time, the stop pin portion 18 of the cord band 14 is adapted to be fitted and fixed in, for example, the through hole 17 of the many through holes 17 of the cord band 14 that is closest to the one end portion 16. The cord band 14
If the outer peripheral dimension of the cord band 14 in the bundled state becomes small (that is, it becomes a thin bundle) depending on the length of the stopper pin 18, the stop pin portion 18 may be fitted in another appropriate through hole 17. Good.

Now, a case where the microwave oven having the above-mentioned structure is installed on the upper surface of the installation table will be described with reference to FIG.
In this case, first, the microwave oven main body 11 is placed on the upper surface 20a of the range table 20 which is an installation table, and the stop pin portion 18 of the cord band 14 is pulled out from the through hole 17 to bundle the power cords 13. To release. Subsequently, the cord band 14 is rotated by using the band fixing pin 16 as a rotation fulcrum so that the cord band 14 extends downward and is brought into contact with the rear surface of the range table 20 (see FIG. 1). . Then, as shown in FIG. 1, a stopper 19 made of, for example, a wood screw is inserted into the through hole 17 of the cord band 14 and fastened and fixed to the rear surface of the range table 20. As a result, the rear portion of the microwave oven main body 11 and the rear portion of the microwave oven base 20 are connected and fixed by the cord band 14.

According to this embodiment having such a structure, after the microwave oven main body 11 is placed and installed on the upper surface 20a of the microwave oven base 20, the cord band 14 provided on the rear portion of the microwave oven main body 11 is stolen. The microwave oven main body 11 is fixed to the back surface of the stand 20 with the stoppers 19 to fix the microwave oven main body 11 to the range stand 2
It was fixed at 0. This allows the child to use the microwave oven door 21
If the cord band 14 has sufficient tensile strength (breaking strength) even if it is pulled downward (see FIG. 2) or is hung on the door 21, the microwave oven body 1
It is possible to reliably prevent 1 from falling. Further, in the case of the above-mentioned embodiment, since the cord band 14 is only provided at the rear portion of the microwave oven main body 11, the degree of freedom in design does not decrease unlike the conventional configuration.

Further, in the above embodiment, the cord band 14 for bundling the power cords 13 is also used as a fixing jig for fixing to the range stand 20, so that the number of parts is increased and the manufacturing cost is increased. Little to do. In the above embodiment, the wood screw is used as the stopper 19, but the invention is not limited to this, and for example, a rivet (tack) or a nail may be used.

FIGS. 4 and 5 show a second embodiment of the present invention, and the difference from the first embodiment will be described. The same parts as those of the first embodiment are denoted by the same reference numerals. In the second embodiment, the ground wire 22 led out from the rear surface of the microwave oven main body 11 and the fixing screw 23 that is attached to the midway portion of the ground wire 22 and is screwed to the range stand 20. To constitute the fixing jig 24. Specifically, as shown in FIG. 5, the fixing screw 23 includes a head portion 23a, a collar portion 23b, and a screw portion 23.
c. In this case, the head 23a and the collar 23b
The ground wire 22 is configured to be able to be wound and fixed (wound) about once or twice between, and thereby the fixing screw 23 is attached to an intermediate part of the ground wire 22. Has become.

Therefore, in the second embodiment, the microwave oven main body 11 is placed on the upper surface 20a of the cooktop 20, and the fixing screw 23 is tightened and fixed to the rear surface of the cooktop 20. Then, the ground wire 22 is wound and fixed between the head portion 23a of the fixing screw 23 and the collar portion 23b. As a result, the rear portion of the microwave oven main body 11 and the rear portion of the microwave oven base 20 are connected and fixed by the ground wire 22. The earth wire 22 may be wound around the head 23a of the fixing screw 23 and the collar portion 23b, and then the fixing screw 23 may be tightened and fixed to the rear surface of the cooktop 20. Further, the tip of the ground wire 22 is configured to be connected to a ground terminal or a ground rod.

In the second embodiment, however, the earth wire 22 provided at the rear portion of the microwave oven main body 11 is fixed by winding the intermediate portion of the earth wire 22 around the fixing screw 23 which is fastened and fixed to the rear surface of the range base 20. By doing so, the microwave oven main body 11 was fixed to the range table 20. As a result, even if a child pulls the microwave oven door 21 downward or hangs down on the door 21, the pulling strength (breaking strength) of the ground wire 22 is sufficient, so that the microwave oven main body 11 is prevented from falling. It can be surely prevented. In the case of the above-described embodiment, since the ground wire 22 is simply attached to the rear surface of the cooktop 20 via the fixing screw 23, the degree of freedom in design does not decrease unlike the conventional configuration. Also,
In the above-described embodiment, since the fixing screw 23 is simply prepared, the manufacturing cost hardly increases.

On the other hand, in the above embodiment, the microwave oven main body 11 is fixed to the range base 20 using the ground wire 22, but instead of this, a fixing (dedicated) wire is attached from the rear surface of the microwave oven main body 11. Of course, the wire may be led out and attached to the rear surface of the cooktop 20 via the fixing screw 23. In the case of this configuration, the wire intermediate portion may be wound around the fixing screw 23 to be fixed, or the tip end portion of the wire may be wound around the fixing screw 23 to be fixed.

FIG. 6 shows a third embodiment of the present invention, and the difference from the first embodiment will be described. The same parts as those of the first embodiment are denoted by the same reference numerals. In the third embodiment, the height of the rear leg 12a of the legs 12 protruding from the bottom surface of the microwave oven main body 11 is made lower than the height of the front leg 12b, and The height position of the rear side 25a of the bottom surface 25 of the range main body 11 is configured to be lower than the height position of the front side 25b.

In the third embodiment, since the height position of the rear side 25a of the bottom surface 25 of the microwave oven main body 11 becomes low, the electric parts (for example, the high voltage transformer 26 ( The arrangement position of heavy electric parts (see FIG. 6) is also lowered. As a result, the position of the center of gravity of the microwave oven main body 11 is lowered, so that it is more difficult to fall. In addition, if the height position of the rear side 25a of the bottom surface 25 becomes lower, the space for arranging the electric parts, that is, the space at the rear side 25a of the machine room becomes wider accordingly. For this reason, the cooling fan device 27 (see FIG. 6) and the like do not get in the way when the heavy electric components are moved and arranged rearward, so that the center of gravity of the microwave oven main body 11 is moved rearward as much as possible. This makes it possible to increase the fall prevention effect. Moreover, in the case of the above configuration, the degree of freedom in design hardly decreases. still,
In the above configuration, the magnetron 28 is arranged in front of the cooling fan device 27 in the machine room.

Further, in the case of the third embodiment, for example, a double-sided adhesive tape may be attached to the lower surface of the leg portion 12 on the bottom surface of the microwave oven main body 11. According to this configuration, the microwave oven main body 11 is mounted on the upper surface 20 of the cooktop 20.
Since the lower surface of the leg portion 12 is adhered to the upper surface 20a of the cooktop 20 when the microwave oven is mounted on a and installed, the microwave oven is more difficult to tip over. In this case, a double-sided pressure-sensitive adhesive tape may be attached to the lower surface of the leg of the microwave oven of the conventional configuration. In this configuration as well, the fall-prevention effect is somewhat reduced, but still Microwave ovens are hard to fall over. Further, instead of the double-sided adhesive tape, a single-sided adhesive tape may be attached to the lower surface of the customer portion with an adhesive so that the lower surface thereof becomes an adhesive surface.

On the other hand, in the above embodiment, the adhesive tape is attached to the lower surface of the leg portion 12, but instead of this, the lower portion of the leg portion 12 may be made of a permanent magnet. According to this configuration, the upper surface 20 of the cooktop 20
Since a is usually made of an iron plate (magnetic plate) in many cases, when the microwave oven main body 11 is placed on the upper surface 20a of the microwave oven stand 20 and installed, the leg portion 1 made of a permanent magnet is used.
The lower part of 2 is adhered to the upper surface 20a of the cooktop 20, which makes the microwave oven more difficult to fall. Incidentally, also in the case of this configuration, as in the case of sticking the adhesive tape, the lower part of the leg of the microwave oven of the conventional configuration may be configured by the permanent magnet.

Instead of the adhesive tape or the permanent magnet, a velcro tape may be attached to the lower surface of the leg portion 12. In the case of this configuration, one tape forming the magic tape is attached to the lower surface of the leg portion 12, and the other tape forming the magic tape is attached to the portion of the upper surface 20a of the range table 20 on which the leg portion 12 is placed. It should be configured to.

Furthermore, in each of the above embodiments, the door is applied to the microwave oven in which the door can be rotated in the vertical direction. However, instead of this, the door is used as the fulcrum of rotation at its left end (or right end). It may be applied to a microwave oven that is rotatable in the lateral direction.

[0027]

As is apparent from the above description, the present invention is configured such that the fixing jig for fixing the microwave oven main body to the installation table is provided at the rear portion of the microwave oven main body, so that the child can use the microwave oven door. Even if it is pulled downwards or it hangs on the door, if the pulling strength (breaking strength) of the fixing jig is sufficient, it is possible to prevent the microwave oven body from tipping over, and the fixing jig is fixed. Since the tool is simply provided at the rear part of the microwave oven main body, there is an excellent effect that the degree of freedom in design is not lowered.

[Brief description of the drawings]

FIG. 1 is a partial side view showing a first embodiment of the present invention, showing a state in which a microwave oven is installed on a range table.

FIG. 2 is a perspective view of a microwave oven.

FIG. 3 is a partial perspective view showing a cord band and a power cord.

FIG. 4 is a view corresponding to FIG. 1, showing a second embodiment of the present invention;

FIG. 5 is a side view of the fixing screw.

FIG. 6 is a cutaway side view of a microwave oven according to a third embodiment of the present invention.

FIG. 7 is a perspective view showing a conventional configuration in which a microwave oven is installed on a range table.

[Explanation of symbols]

Reference numeral 11 is a microwave oven main body, 12 is a leg portion, 12a is a rear leg portion, 12b is a front leg portion, 13 is a power cord, 14 is a cord band (fixing jig), 15 is one end portion, and 16 is a band fixing pin. , 17 is a through hole, 19 is a stopper, 20 is a range stand (installation stand), 21 is a door, 22 is a ground wire, 23 is a fixing screw, 24 is a fixing jig, 25 is a bottom surface, and 25a is a bottom rear surface side. , 25b indicate the front side of the bottom surface.

Claims (6)

[Claims] 1. A microwave oven of a type which is mounted on an upper surface of an installation stand and installed, wherein a fixing jig for fixing the main body of the microwave oven to the installation stand is provided at a rear portion of the main body of the microwave oven. . 2. The fixing jig is formed of a flexible member and is configured to be usable as a cord band for bundling power cords led out from the microwave oven main body. Microwave oven. 3. The fixing jig is composed of a ground wire led out from the microwave oven main body, and a fixing screw that is attached to an intermediate part of the ground wire and is screwed to the installation base. The microwave oven according to claim 1, wherein: 4. The fixing jig is composed of a fixing wire led out from the microwave oven main body, and a fixing screw that is attached to the tip of the wire and is screwed to the installation base. The microwave oven according to claim 1, wherein the microwave oven is a microwave oven. 5. In a microwave oven of a type to be mounted on an upper surface of an installation stand for installation, the height dimension of the rear leg portion of the leg portions protruding from the bottom surface of the microwave oven main body is set to the height of the front leg portion. A microwave oven characterized in that the height of the rear side of the bottom surface of the microwave oven main body is lower than the height of the front side of the microwave oven main body. 6. A microwave oven of a type to be mounted on the upper surface of an installation stand for installation, wherein an adhesive tape is attached to a lower surface of a leg portion projecting from a bottom surface of the microwave oven main body so that the lower surface becomes an adhesive surface. The microwave oven according to claim 1, wherein the leg portion is configured to be adhered to the upper surface of the installation table by the above or by configuring the lower portion of the leg portion with a permanent magnet.