JP2006038300A - Drawer type heating cooking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drawer type heating cooking device capable of maintaining a heating container interior in a clean state by providing a limit to a moving speed of a drawer body provided with the heating container with respect to a cooking device body, and preventing spilling of an object to be heated due to impact acting during a moving start or stoppage. <P>SOLUTION: The drawer type heating cooking device is provided with the cooking device body 1 formed with a heating chamber 3 using a microwave in an interior, and the drawer body 2 arranged such that it can move between a housed position in the heating chamber 3 and a drawn position to the outside from the heating chamber 3 with respect to the cooking device body 1 via a slide rail 17. Since the moving speed of the drawer body 2 is set at 12cm/s or lower, spilling of the object 6 to be heated including liquid during a moving start or stoppage can be prevented. Since the moving speed is set at 8cm/s or higher, the time required for opening and closing an opening and closing door 4 does not become unnecessarily long, and it does not give a feeling of discomfort to a user. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pull-out heating cooker that can draw a heating container forward from a cooker body.

  Conventionally, many cooking devices such as microwave ovens have been proposed for the front and rear doors, but a drawer-type cooking device to the front side has also been proposed as a different type of cooking device. ing. The drawer-type cooking device is suitable for a relatively large structure, and is thus positioned as one of the cooking devices constituting the system kitchen.

As an example of a drawer-type heating cooker, the bottom plate interlocking with the front open / close door can be smoothly slid with respect to the device body by a slide mechanism, and the output of the motor provided on the device body side can be A structure has been proposed in which a bottom plate is driven to open and close together with an opening / closing door by a transmission means (see Patent Document 1). The door opening / closing device includes a latch device for closing and holding the opening / closing door, a door opening / closing switch, and a control circuit for driving the motor so as to open / close the door in response to a signal from the door opening / closing switch. When the door open / close switch is pressed, the latch is automatically released, and the open / close door and the bottom plate are interlocked and opened / closed by the driving force of the motor.
JP-A-3-45820 (3rd page, upper left column, line 5 to same page, upper right column, line 16; FIGS. 2 to 4)

As another example of the drawer-type cooking device, the drawer body in which the object to be heated is accommodated is a heating cooker provided so that the drawer body can be pulled out, and the drawer body is pulled out to the front side. There has been proposed a method of detecting and exciting an electromagnet leg portion provided on the bottom surface of a cooker main body so as to be attracted to a metal placement surface on which the cooker is placed (see Patent Document 2). When the drawer body containing a large amount of heated object is pulled out, the drawer body becomes unstable in weight balance by adsorbing the electromagnet legs to the metal mounting surface. I try to prevent falling.
JP-A-6-109257 (paragraph [0010], FIG. 1)

As another example of the drawer-type heating cooker, a microwave oven having a drawer structure that can move the food placing portion has been proposed (see Patent Document 3). In this microwave oven, a heating container having an opening at the top is freely pulled out from the main body casing of the microwave oven, and microwaves are confined and heated by the heating container and a lid that covers the opening of the heating container provided on the main body casing side. Forming a chamber. In this microwave oven, radio wave leakage is prevented by providing a choke groove between the opening peripheral edge portion of the heating container and the lid portion facing it.
Japanese Patent Laid-Open No. 11-237053 (paragraphs [0030] to [0035], FIG. 1)

  The present applicant has proposed a cooking device in which a drawer body in which an object to be heated is accommodated can be pulled out from the cooking device body (Japanese Patent Application Nos. 2004-7384 and 2004-7385). According to the proposal by the former application, it is not necessary to use an effective part or material having high heat resistance and flame retardancy to constitute the moving mechanism, and the manufacturing cost can be reduced. By adopting a structure that is not affected by the microwaves irradiated into the heating chamber, the possibility of discharge due to microwaves can be eliminated. Further, in the latter application, the user is burned due to a bumping phenomenon in which water vapor is released at a stroke due to an impact of vibration or the like due to the vibration caused by the opening / closing operation to the heated object. In addition to preventing danger, it is possible to prevent the heated object from overturning and spilling liquid components due to the impact during the opening and closing operation by controlling the moving speed of the opening and closing door.

  In a drawer-type heating cooker, when using a manual opening / closing door mechanism, the opening / closing speed of the door must be adjusted at the user's discretion, but conversely, the opening / closing speed can be changed according to the user's preference. However, it is always impossible to open and close the door at the same constant speed, and the user must determine the appropriate door opening and closing speed by judging the shape of the container and the amount of food (liquid) contained in the container. I must. If the determined opening / closing speed is too fast, food may be spilled from the container due to an impact at the time of opening / closing start or stop.

  Therefore, in a drawer-type heating cooker in which the heating container can be pulled forward with respect to the cooker body, the object to be heated is placed in the heating container when the drawer body including the heating container is moved relative to the cooker body. In order to prevent spilling, there is a problem to be solved in that a limit is set on the moving speed.

  An object of the present invention is a cooking device capable of pulling a heating container forward with respect to a cooking device main body, and by providing a limitation on a moving speed for moving a drawer body including the heating container with respect to the cooking device body. An object of the present invention is to provide a drawer-type heating cooker that prevents the heated object from spilling from the container even when an impact is applied at the start or stop of movement and keeps the inside of the heating container clean.

  In order to solve the above-described problems, a drawer-type heating cooker according to the present invention includes a cooker body in which a microwave heating chamber is formed, a storage position in the heating chamber, and a heating chamber with respect to the cooker body. The drawer body is provided so as to be movable between the drawer position to the outside and the movement speed of the drawer body is 12 cm / s or less.

  According to this drawer-type heating cooker, when the drawer body is moved to the external drawer position, the object to be heated can be placed on the drawer body. When the drawer is in the storage position in the heating chamber, the object to be heated can be heated by the microwave. Since the moving speed of the drawer body is set to 12 cm / s or less, it is confirmed that there is no spillage of the heated object in the case of a general heated object in which food is contained in a container.

  The drawer-type heating cooker includes a slide mechanism that allows the drawer body to move with respect to the cooker body, and a drive mechanism that drives the slide mechanism and determines the moving speed of the drawer body according to the magnitude of the output. Can do. By adopting means such as a motor as the drive mechanism and designing the output speed, the drive speed of the slide mechanism, that is, the moving speed of the drawer can be reduced to 12 cm / s or less. By such speed limitation, the drawer can be moved at a constant speed regardless of the form of the object to be heated.

  In a drawer-type heating cooker including a slide mechanism and a drive mechanism, the drive mechanism preferably has a moving speed of the drawer body of 8 cm / s or more. If it takes 4 to 5 seconds or more for the drawer body to move between the storage position and the drawer position, the user feels uncomfortable that the waiting time is long. By setting the moving speed of the drawer body to 8 cm / s or more, the drawer body can move between the storage position and the drawer position in 4 to 5 seconds or less. In this case, the majority of users wait. I don't feel uncomfortable with a long time. Moreover, the drive mechanism can set the moving speed of the drawer to an arbitrary speed within the above speed range. For example, when the object to be heated is a solid that does not spill, the moving speed can be set to a high speed. Furthermore, when the movement of the drawer body is started and stopped, the drive mechanism can accelerate the drawer body to the moving speed substantially instantaneously and can stop the moving body substantially instantaneously from the moving speed. The spillage of the object to be heated from the container is actually based on the inertia of the drawer, i.e., due to the acceleration of the container, but if the drawer is started or stopped substantially instantaneously, the user Since the movement is performed in a feeling manner, the degree of shaking of the object to be heated can be made to correspond to the substantial movement speed when the drawer body is moving between the storage position and the drawer position. Further, since an impact is applied to the object to be heated at the time of starting and stopping, the ejection of the steam is terminated early, and there is no bumping phenomenon in which the steam is ejected when the heating container is pulled out and taken out after heating.

  The drawer body includes an open / close door and a heating container that is attached to the open / close door and can accommodate an object to be heated, and the opening of the heating chamber is closed by the open / close door when the drawer body occupies the storage position. And a heating container can be accommodated in a heating chamber. According to such a drawer-type heating cooker, in a state where the drawer body occupies the storage position, the opening of the heating chamber is closed by the open / close door, and the heating container is stored in the heating chamber, so that the heating chamber is irradiated. Can be prevented from leaking outside.

  The drive mechanism may include a rack and pinion mechanism including a drive motor attached to the cooker body, a pinion rotated by the drive motor, and a rack attached to the drawer and meshing with the pinion. The output rotation of the drive motor is converted into a sliding movement of the drawer through the rack and pinion mechanism. The slide mechanism includes a fixed rail attached to the cooker body and a movable rail attached to the drawer body and movable relative to the fixed rail, and the rack of the drive mechanism can be attached to the movable rail. In this case, the output rotation of the drive motor is converted and transmitted as a slide motion from the pinion to the drawer via the rack and the movable rail to which the rack is attached.

  As described above, the drawer-type cooking device according to the present invention has a restriction that the moving speed of the drawer body is 12 cm / s or less. In some cases, it has been confirmed that there is practically no spillage of food when the drawer is stored and when it is pulled out. Therefore, the drawer body can be moved without causing discomfort to the user and without spillage of the heated object, and the heated object can be taken out in a clean form with no spillage. Further, the inside of the heating container is free from contamination due to spillage of the object to be heated, and can always be kept clean.

  Hereinafter, embodiments of a drawer-type cooking device according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing an overall appearance of an embodiment of a drawer type cooking device according to the present invention, partially broken away, FIG. 2 is a longitudinal sectional view of the drawer type cooking device shown in FIG. FIG. 2 is a horizontal sectional view of the drawer-type heating cooker shown in FIG. 1. 4 is a cross-sectional view of the drawer-type heating cooker shown in FIG. 1, and FIG. 5 is a perspective view schematically showing a drive mechanism used in a portion indicated by A in the drawer-type heating cooker shown in FIG. However, FIG. 2 shows an outline of the slide mechanism on the outside below the center, and the left and right slide mechanisms are omitted in FIG.

  As shown in FIGS. 1 to 4, the drawer-type cooking device (hereinafter abbreviated as “heating cooking device”) includes a cooking device body 1 and a drawer body 2 that can be pulled out from the cooking device body 1. . A heating chamber 3 for cooking the heated object 6 placed on the drawer body 2 is formed inside the cooker body 1. The heating chamber 3 has an opening 3a on the front side, left and right side walls 3b and 3b, a rear wall 3c connected to the side walls 3b and 3b on the back (back) side, side walls 3b and 3b, and the rear wall. It is formed by being surrounded by a bottom wall 3d and a top wall 3e connected to 3c.

  The drawer body 2 can be moved in the cooker body 1 by a slide mechanism to be described later so that the drawer body 2 can be pulled out from the inside of the heating chamber 3 of the cooker body 1 in the direction indicated by the arrow (FIGS. 2 and 3). Is arranged. The drawer body 2 includes an opening / closing door 4 for opening and closing the heating chamber 3 and a heating container 5 to which the opening / closing door 4 is attached and for storing the article 6 to be heated in a mounted state. The heating container 5 includes a front plate 5a attached to the opening / closing door 4, left and right side plates 5b and 5b extending rearward from the left and right of the front plate 5a, and a rear plate connected to the side plates 5b and 5b on the back (back) side. 5c and a side plate 5b, 5b and a bottom plate 5d connected to the rear plate 5c, and a container opening 5e through which the heated object 6 can be taken in and out is formed at the top.

  The drawer body 2 is movable between a drawer position where the heating container 5 is pulled forward from the heating chamber 3 (corresponding to the drawer state in FIG. 1) and a storage position where the heating container 5 is stored in the heating chamber 3. It is. The heating cooker has slide rails 7 and 7 as left and right slide mechanisms arranged on the left and right outer sides of the heating chamber 3 to move the drawer body 2 within the cooker main body 1, and the center lower outer side of the heating chamber 3. And a slide rail 17 serving as a central slide mechanism. When the drawer body 2 occupies the storage position, the open / close door 4 is configured to occupy a position to close the opening 3a of the heating chamber 3, so that the internal space of the heating chamber 3 is the inner wall surface of the cooker body 1 and the drawer body. 2 becomes a sealed space, and the microwave irradiated in the heating chamber 3 does not leak outside. When the drawer body 2 occupies the drawer position, the heating container 5 is sufficiently drawn forward from the heating chamber 3, and the article 6 to be heated can be taken in and out of the heating container 5 through the container opening 5e.

  Each of the slide rails 7 and 17 includes a fixed rail 9 attached to the cooker body 1 side and a movable rail 10 attached to the drawer body 2 side and slidable along the fixed rail 9. These slide rails 7 and 17 may have a structure equivalent to a slide rail for drawers used for office furniture such as a cabinet or a desk, and detailed description thereof is omitted here. As shown in FIG. 3 or FIG. 4, each fixed rail 9 is attached to the outside of the side walls 3 b, 3 b, 3 d forming the heating chamber 3 of the cooker body 1. Moreover, each movable rail 10 is attached to the opening / closing door 4 via an L-shaped angle member 8 attached so as to extend from the inner wall surface of the opening / closing door 4 of the drawer body 2 toward the cooker body 1.

  A microwave generator 11 is disposed around the heating chamber 3 in the cooker body 1. The microwave generator 11 includes a magnetron 12 that generates a microwave disposed behind the heating chamber 3, and a waveguide 13 that is disposed above the heating chamber 3 and propagates the microwave generated by the magnetron 12. Has been. The microwave generated by the magnetron 12 propagates through the waveguide 13 and is irradiated into the heating chamber 3 from the power supply port 14.

  The left and right slide rails 7 are provided in association with a passage box 21 formed in the cooker body 1 on each of the left and right sides of the heating chamber 3. That is, the cooker body 1 includes, as a housing 20, a front wall 20a around the opening 3a of the heating chamber 3, left and right side walls 20b and 20b, a rear wall 20c, a bottom wall 20d, and a top wall 20e. have. In the cooker main body 1, a passage surrounded by the side walls 20 b and 20 b of the housing 20 and a part of the front wall 20 a, the rear wall 20 c, the bottom wall 20 d, and the top wall 20 e outside the side wall 3 b of the heating chamber 3. A box 21 is formed. The fixed rail 7 of each slide rail 7 is attached to the outside of the side wall 3b of the heating chamber 3 in the passage box 21, and the movable rail 10 together with the L-shaped angle member 8 passes through the insertion hole 22 formed in the front wall 20a. It can move in and out of the passage box 21. The central slide rail 17 is provided in association with a passage box 24 (FIG. 4) formed in the cooker body 1 on the outer side below the center of the heating chamber 3. That is, in the cooker main body 1, a passage box 24 is formed between the bottom wall 20 d of the housing 20 and the bottom plate 3 d of the heating chamber 3, and the slide rail 17 is arranged in the passage box 24 together with a drive mechanism described later. Is arranged. Also with respect to the slide rail 17, the movable rail 10 can move in and out of the passage box 24 through the insertion hole 25 formed in the front wall 20 a together with the L-shaped angle member 8.

  As shown in FIGS. 4 and 5, a drive mechanism 50 is provided for the central slide rail 17 in order to automatically open and close the drawer body 2. The drive mechanism 50 includes a drive motor 51 as a drive source and a rack and pinion mechanism 52 that transmits the rotation output of the drive motor 51 to the movable rail 10. The drive motor 51 includes a motor main body 54 attached to a motor attachment angle member 53 fixed to the fixed rail 9, and a motor shaft 55 as a rotation output shaft extending from the motor main body 54. The rack and pinion mechanism 52 serving as a transmission mechanism includes a pinion 56 attached to the tip of the motor shaft 55 and a rack 57 that meshes with the pinion 56. The rack 57 is disposed on the movable rail 10 along the moving direction of the drawer 2, and the motor shaft 55 extends in a direction orthogonal to the direction in which the rack 57 extends correspondingly.

  Since the slide rails 7, 7, 17 and the drive mechanism 50 are provided outside the heating chamber 3 so as to be able to enter and exit the passage boxes 21, 24 through the insertion holes 22, 25, they are exposed to high temperatures. In addition, there is no influence of microwaves irradiated into the heating chamber 3. Therefore, it is not necessary to use expensive parts and materials having high heat resistance and flame retardancy, and the manufacturing cost of the cooking device can be reduced. In addition, food that is put into the heating chamber 3 may generate residue when being charged, taken out, or heated. Each slide rail 7 provided on the outside of the heating chamber 3 has a residue of food. , 17 and the drive mechanism 50. Therefore, it is possible to prevent the slide mechanism and the drive mechanism 50 from failing due to attached food waste.

  The drawer body 2 is supported not only by the left and right slide rails 7 and 7 but also by the cooker body 1 through the central slide rail 17 in particular, so that it is extremely easy to tilt without being tilted forward and downward when pulled out. It can be pulled out from the heating chamber 3 stably.

  The moving speed of the drawer body 2 driven by the driving mechanism 50 is set to 8 cm / s or more and 12 cm / s or less. When the moving speed of the drawer body 2 is 8 cm / s or less, the time required to pull out the drawer length (about 36 to 40 cm) is 4 to 5 seconds, and the waiting time is too long. Experience has shown that the majority of users feel uncomfortable. In addition, when the object to be heated is a food or drink made of liquid, food does not spill when the moving speed of the drawer body 2 is less than the speed limit of 12 cm / s. Depending on the condition, it may spill into the heating chamber 3. Whether or not the object to be heated spills from the container is based on the inertial force resulting from the acceleration of the drawer 2, that is, the container containing the object to be heated that is a liquid. However, according to what the user feels, the drawer body 2 is moved in such a manner that the drawer body 2 is felt to start or stop substantially instantaneously. The substantial moving speed when moving between the objects can be a sufficient index for measuring the degree of shaking of the object to be heated.

Table 1 shows the relationship between the moving speed of the drawer body 2 and the spillage of the liquid contents in the container. As for the container, as shown in FIG. 6, casserole (FIG. 6 (a)), a soup bowl (FIG. 6 (b)), and a mug (FIG. 6 (c)), which are pottery pots. As a type of container, the presence or absence of liquid content spillage was confirmed by experiment for several moving speeds. The capacity of each container is as shown in the table, and the load amount was 80% of the capacity considered to be a general amount. As the contents, water having the most severe condition was selected in the direction where the viscosity was lowest and spilled. It was confirmed that there was no spillage of food in any container when the moving speed of the drawer body 2 was 12 cm / s or less. When the moving speed of the drawer 2 was 13 cm / s, spillage of the contents was confirmed in the casserole and the mug.

  Although the weight of the container itself varies depending on the type of the container, it has been found that the relationship between the moving speed of the drawer 2 and the spillage of the contents is not particularly affected. This is presumably because the weight of the drawer body 2 is considerably large, and the difference in the weight of the container does not significantly affect the total weight. Therefore, the magnitude of the drive current to the drive motor 51 does not necessarily need to be changed depending on the type of container and the amount of contents. However, the setting of the magnitude of the drive current to the drive motor 51 can be changed stepwise or steplessly according to the desired moving speed of the drawer 2 within the range of 8 cm / s to 12 cm / s. The drawer 2 can be moved at a constant speed according to the set value. Further, when the heated object is a solid heated object or the like whose contents are unlikely to spill, the drawer body 2 is moved at a moving speed exceeding the above-mentioned speed limit by the user's selection. Also good. A panel for setting and operating such a user can be provided in the cooker body 1.

  When the drawer body 2 is moved manually, the drive mechanism 50 is unnecessary, and the drawer body 2 is guided and moved by the three slide rails 7, 7, and 17. For the movement of the drawer body 2, the rack and pinion mechanism 52 and the three slide rails 7, 7, 17, or the heating container 5 with respect to the cooker body 1 of the drawer body 2 are guided to the heating chamber 3. A guide roller gives moderate resistance. When the drawer body 2 is moved with a manual force of an appropriate magnitude that overcomes these resistances, the speed of movement of the drawer body can usually be reduced to a speed limit of 12 cm / s or less.

The perspective view which shows the whole external appearance of one Example of the heating cooker by this invention. The longitudinal cross-sectional view of the heating cooker shown in FIG. The horizontal sectional view of the heating cooker shown in FIG. The cross-sectional view of the heating cooker shown in FIG. The perspective view which shows an example of the drive mechanism used for the heating cooker shown in FIG. The perspective view which shows the container used in order to investigate the relationship between the moving speed of a drawer body, and the spill of the content.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cooker main body 2 Drawer 3 Heating chamber 3a Opening part 3b, 3b Side wall 3c Rear wall 3d Bottom wall 3e Top wall 4 Opening / closing door 5 Heating container 5b, 5b Side plate 5c Rear plate 5d Bottom plate 5e Container opening 6 Heated object 7 , 17 Slide rail (slide mechanism)
8 L-shaped angle material 9 Fixed rail 9
DESCRIPTION OF SYMBOLS 10 Movable rail 11 Microwave generator 12 Magnetron 13 Waveguide 14 Feed port 20 Case 20a Front wall 20b, 20b Side wall 20c Rear wall 20d Bottom wall 20e Top wall 21 Passage box 22 Insertion hole 23 Partition wall 24 Passage box 25 Insertion Hole 50 Drive mechanism 51 Drive motor 52 Rack and pinion mechanism 53 Motor mounting angle material 54 Motor body 55 Motor shaft 56 Pinion 57 Rack

Claims (7)

  A cooker body in which a microwave heating chamber is formed, and the cooker body is movably disposed between a storage position in the heating chamber and a drawing position to the outside from the heating chamber with respect to the cooker body. A drawer-type heating cooker comprising a drawer body that is provided with a moving speed of the drawer body of 12 cm / s or less.   The drawer-type cooking device according to claim 1, wherein the moving speed of the drawer body is 8 cm / s or more.   A slide mechanism that allows the drawer body to move with respect to the cooker body; and a drive mechanism that drives the slide mechanism and determines the moving speed of the drawer body according to the magnitude of the output. The drawer type cooking device according to claim 1 or 2.   The drawer-type cooking device according to claim 3, wherein the drive mechanism is capable of changing the moving speed of the drawer body.   The drive mechanism according to any one of claims 1 to 4, wherein the drive mechanism starts substantially instantaneously at the moving speed when the drawer body starts and stops, and stops substantially instantaneously from the moving speed. 2. A drawer-type cooking device according to item 1.   The drawer body includes an opening / closing door and a heating container that is attached to the opening / closing door and can accommodate an object to be heated. In the state where the drawer body occupies the storage position, the opening / closing door is disposed in the heating chamber. The drawer-type heating cooker according to any one of claims 1 to 5, wherein the opening is closed and the heating container is accommodated in the heating chamber.   The drive mechanism includes a drive motor attached to the cooker body, and a rack and pinion mechanism comprising a pinion rotated by the drive motor and a rack attached to the drawer body and meshing with the pinion. The drawer-type heating cooking appliance of any one of Claims 1-6 consisting of.

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