JP2001292914A - Rotary drum type foodstuff heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in the fact that a foodstuff is heated in a trying pan or a pot put on a stove because an existent foodstuff heater is for a relatively small business such as a restaurant and an eating house or is improper to domestic use. SOLUTION: A cover case 13 with an open top is supported in a housing 3 so as to be changeable in posture by a handle 27. The cover case 13 is provided therein with a rotary drum 11 with a net-formed peripheral wall 51 in a storing relation, and with a heater 15. With a foodstuff put in the rotary drum 11, when the rotary drum 11 in a posture inclined at 450 deg. to the left is rotated, the foodstuff is heated via repeated vertical movements along a helical guide 53. The degree of the heating of the foodstuff is visible through a transparent glass 21 of the cover case 13. The structure is relatively simple and inexpensive, can heat the foodstuff uniformly and can ensure unattended heating offering a desirable degree of processing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary drum-type food heater, and more particularly to a small-sized rotary drum-type food heater for general households and small shops.

[0002]

2. Description of the Related Art Today, there are various types of apparatuses for dry-heating foodstuffs such as beans, rice, and sesame for the purpose of main cooking and preliminary cooking.

[0003]

However, many of the conventional apparatuses of this kind are intended for so-called food manufacturers aiming for large-scale processing, and each of them has a unique type suitable for the item to be processed. It has a structure. Therefore, there is no general versatility that can be easily cooked even in a small amount without restricting the processing items in a relatively small business or general household such as a restaurant or a restaurant.

Therefore, in a restaurant or a general household, food is usually heated with a frying pan or a pan placed on a stove. However, in this method, when the food is heated to the core, the surface becomes scorched. It was a difficult method to adjust the temperature, for example, the heating became insufficient when trying to avoid it. In addition, in this method, since the stove cannot be separated, there is a problem that labor is taken in business.

The present invention has been made in view of the above-mentioned conventional problems, and has a relatively simple structure and a low cost, and can uniformly and uniformly heat foods.
It is an object of the present invention to provide a rotary drum type food heater capable of performing undesired heating by desired processing.

[0006]

In order to achieve the above object, a rotary drum type food heater according to the first aspect of the present invention comprises a cylindrical rotary drum having one end opened and into which food is charged, and a rotary drum. A drum driving unit to which the drum is detachably mounted, a heater for heating the rotating drum from the outside, a control circuit for driving these motors and the heater, and a posture of the rotating drum, at least the opening of which is almost obliquely upward. Equipped with a heating attitude tilted to the side and a handle-operated attitude changing means for selectively changing the food ingredients into a take-out attitude that allows them to fall under their own weight.The control circuit controls the rotating drum and heater. The rotary drum has an off-timer for setting a driving time, and the rotating drum has at least one structure provided with a spiral guide extending spirally along the inner surface thereof.
The food in the rotary drum having the spiral guide is heated while repeatedly rising and falling by the rotating action of the rotary drum and the guiding action of the spiral guide.

Therefore, according to the rotary drum type food heater, when the rotary drum having at least the structure having the spiral guide is used, the food in the rotary drum is heated while repeatedly rising and falling therein. In addition, heating can be performed uniformly without unevenness. In addition, since the attitude changing means is a handle operation type, and the processed food is taken out with its own weight with the rotating drum almost inverted, the structure is relatively simple and the cost is low. Since the control circuit is provided with an off-timer, it is possible to perform unattended heating by controlling the desired processing.

According to a second aspect of the present invention, there is provided a rotary drum-type food heater comprising a drum cover surrounding at least substantially the entire rotary drum at the time of heating. Characterized in that a heater is arranged inside the inside. Therefore, since the heat of the heater hardly escapes from the inside of the drum cover to the outside, the heating efficiency of the heater can be increased.

A rotary drum type food heater according to a third aspect of the present invention is the rotary drum type food heater according to the second aspect, wherein the peripheral wall of the rotary drum is made of a mesh, and a part of the drum cover is made of a transparent material. It is characterized by having done.
This makes it easier for the heat of the heater to pass through the ingredients in the rotating drum, and also allows the ingredients being processed to be known from the outside of the drum cover, such as the degree of heating and the degree of stirring.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A rotary drum type food heater according to an embodiment of the present invention will be described below with reference to the drawings. [A. Housing] (FIGS. 1, 2 and 5) Reference numeral 3 denotes a housing of the rotary drum type food heater 1. The housing 3 has a box shape in which an upper surface and a left side surface (a leftward direction in FIG. 1 is a leftward direction, and a rightward downward direction in FIG. 1 is a front side). Is inclined about 45 ° to the lower left. The front and rear side walls 3a of the housing 3 are made of mesh, and a bearing metal (not shown) whose axial direction extends in the front-rear direction is attached to substantially the center of the frame.

[B. Processing Unit] (FIGS. 1 to 5) Reference numeral 7 denotes a processing unit. The processing unit 7 is a part that performs a process of heating the food while stirring the food. The processing unit 7 includes a rotary drum 11 into which the food is put, a cover case 13 holding the rotary drum 11 in a storage shape, and a rotary drum 11. The housing 3 includes a heater 15 for heating, a drum driving unit 17 for rotating the rotary drum 11, and the like. Note that the orientation and positional relationship when describing the shape and structure of each unit of the processing unit 7 are as follows.
The orientation and the positional relationship in a state where the processing unit 7 is in a vertical posture as shown in FIGS.

[B-1. Cover Case] (FIGS. 1 to 5) The cover case 13 is in the shape of a slightly elongated box having an open upper surface, and the front wall 21 is made of transparent heat-resistant glass. The bottom wall 22 and the peripheral wall 23 are formed of a metal plate such as stainless steel.
Is processed to have good heat reflection properties. Also,
Of the bottom wall 22 and the peripheral wall 23, two corner walls 23a where the left and right side portions and the back portion are continuous face each other in directions opened by 90 °. Two L-shaped brackets 24 (see FIG. 3) are attached to the front ends of the left and right sides of the peripheral wall 23, two at a time.

Reference numeral 25 denotes a processing unit support stay. The processing unit support stay 25 has an X-shape when viewed from the front, and the front ends of the four arms are separately fixed to the bracket 24, thereby being attached to the front surface of the cover case 13. A boss shaft 26 is attached to the center of the processing unit support stay 25, and a support shaft (not shown) coaxially located with the boss shaft 26 is also attached to the back surface of the peripheral wall 23 of the cover case 13. The shaft and the boss shaft 26
It is rotatably supported by the above-mentioned bearing metal (not shown) provided in the housing 3. The front end of the boss shaft 26 projects outward from the front side wall of the housing 3, and a handle 27 is attached thereto. Therefore, by turning the handle 27, the cover case 13 is rotated about the boss shaft 26 and a support shaft (not shown) as a rotation center.

[B-2. Drum drive unit] (FIGS. 2 to 5) The gear case 3 is disposed on the bottom wall 22 of the cover case 13 from below.
1 is attached. Ball bearings 32 are attached to the upper and lower walls of the gear case 31, and a drum rotating shaft 33 is rotatably supported by the ball bearings 32. The drum rotating shaft 33 has a flat gear 34 fixed in the gear case 31 and an upper end protruding from the gear case 31 into the cover case 13. The center of a disk-shaped drum mounting plate 35 is fixed to the lower end of the protruding portion, and a portion above the drum mounting plate 35 is a screw shaft 33a.

On the outer peripheral portion of the drum mounting plate 35, there are three short engaging pins 37 arranged at equal intervals in the circumferential direction.
Are provided so as to protrude upward, and a small disk-shaped heat insulating washer 38 is attached to a lower portion of the engagement pins 37.

A motor 41 is mounted on the rear wall of the gear case 31 from outside, and a horizontal rotating shaft 42 connected to an output shaft of the motor 41 passes through the inside of the gear case 31. A screw type gear 43 is provided at an intermediate portion of the rotating shaft 42.
Is fixed, and this screw type gear 43 is
4 meshes from the side. Accordingly, when the motor 41 is driven, the screw gear 43 slowly rotates the spur gear 34, thereby rotating the drum mounting plate 35. The rotation direction of the drum mounting plate 35 is clockwise as viewed from above.

[B-3. Rotating Drum] (FIGS. 2 to 5) The rotating drum 11 includes a vertically long cylindrical peripheral wall 51, a disk-shaped bottom plate 52 covering the lower end of the peripheral wall 51, and a peripheral wall 5.
1 and a spiral guide 53 attached to the inner surface of the peripheral wall 51, and the peripheral wall 51 is formed by a metal net. The bottom plate 52 has a screw hole 52a formed in the center thereof, and three engagement holes 52b arranged at equal intervals in the circumferential direction at the outer periphery.

The spiral guide 53 is formed of a relatively narrow metal band plate, and extends over the circumference from the lower end of the peripheral wall 51 to the vicinity of the upper end, with the axis of the peripheral wall 51 as the center of the spiral and a length of about one turn. And is provided so as to extend spirally. The attitude of the spiral guide 53 in the width direction is substantially perpendicular to the inner surface of the peripheral wall 51, and the direction of the spiral is a direction in which the spiral guide 53 is displaced upward as it advances in a counterclockwise direction viewed from above. .

The rotary drum 11 is detachably mounted on the drum mounting plate 35. That is,
As can be seen from FIG. 5, the rotating drum 11 has a screw shaft 33a of the drum rotating shaft 33 passed through a screw through hole 52a of the bottom plate 52, and an engaging pin 37 is inserted into an engaging hole 52b. By attaching the wing nut 55 to the shaft 33a,
It is fixed to the drum mounting plate 35 with a heat insulating washer 38 interposed therebetween. Therefore, when the motor 41 is driven, the rotating drum 11 rotates. The rotating direction of the rotating drum 11 is a clockwise direction viewed from above.

The rotating drum 11 is provided with a peripheral wall 51 having a different mesh number, for example, a rotating drum 11 having a finer mesh so as not to pass sesame, a coarser mesh, or a spiral guide 53. Several types, such as those not provided, are prepared and can be replaced at any time according to the purpose of use.

[B-4. Heater] (FIGS. 1, 3 and 5) The heater 15 is provided inside the cover case 13 and close to the rotating drum 11. This heater 1
For example, five straight quartz tube-type tubes 5 are used in a horizontal posture, and are attached to the inner surface of the right-side corner wall 23a of the cover case 13 so as to be vertically arranged at equal intervals. . Therefore, the rotating drum 11 is heated by the heater 15 generating heat. In some cases, two or three heaters 15 may be provided in a vertically long attitude, or a plate-shaped far-infrared type or other types may be used instead of the quartz tube type. Since the rotary drum 11 is mounted on the drum mounting plate 35 with the heat insulating washer 38 interposed therebetween, the heat of the heated rotary drum 11 is hardly transmitted to the drum driving unit 17.

[B-5. Rotation of Rotary Drum and Change of Posture] (FIGS. 2, 5) Since the processing unit 7 is configured as described above, by rotating the handle 17, the rotary drum 11, the cover case 13, the heater 15, and the drum The drive unit 17 rotates integrally to change the posture. The posture of the processing unit 7 is shown in FIG.
In FIG. 5, the opening 11a of the rotating drum 11 is vertically oriented with the opening 11a of the rotating drum 11 facing straight upward, and as shown in FIG. The opening 11a of the rotating drum 11 is selectively changed to a take-out posture in which the opening 11a faces obliquely downward and to the left as shown by a two-dot chain line in FIG. Although not shown, a click stopper mechanism is provided between the housing 3 and the cover case 13 for positioning the processing unit 7 at each of the three positions.

[C. Cover lid] (FIGS. 1 to 3 and FIG. 5) The housing 3 is provided with a cover case 1 in a heating posture.
3 is provided with a cover lid 61 for closing the upper opening 13a. The cover lid 61 is made of a material having a low heat conduction characteristic or processed so as to have such characteristics. Except for forming narrow bent pieces on both front and rear sides, a rectangular flat plate is formed. And one end of the housing 3
Is rotatably supported by a hinge shaft 62 provided at the left end of the, and a knob 63 is attached to the rotating end. An engagement hole 61a is formed at a position near the knob 63. A lid engaging pin 64 is mounted at the center of the upper end of the right side of the peripheral wall 23 of the cover case 13, and a small notch 6 is formed on the right side of the lid engaging pin 64.
4a are formed.

The cover lid 61 is placed in the housing 3 as shown in FIG. 1 and FIG. 5, and is used in a position where the upper opening 13a of the cover case 13 is closed, and goes out of the housing 3 as shown in FIG. Move to the unused position. That is, when processing the food, the cover lid 61 is rotated so as to cover the opening 13a of the cover case 13 while the processing unit 7 is in the heating position, and the lid engaging pin 6 is inserted into the engaging hole 61a.
4 is relatively inserted, and the edge of the engagement hole 61a is
4 is engaged with the notch 64a. In this state, the opening 13a of the cover case 13 is closed by the cover lid 61 (see FIG. 5). In this state, the engagement hole 62a and the lid engagement pin 64
Is held by the engagement with

The cover lid 61, which has reached the use position, closes the opening of the rotary drum 11 at a certain interval (see FIG. 5).
So, if you put too much food into the rotating drum 11,
It is prevented from jumping out. In particular, when making popcorn, it is possible to reliably prevent the swelling corn from jumping out. When the cover lid 61 closes the opening 13 a of the cover case 13, the rotating drum 11 moves the cover case 1.
3 and the cover lid 61 substantially enclose the shape. That is, the cover case 13 and the cover lid 61 cooperate with each other to form a drum cover 66 surrounding the rotating drum 11. Therefore, when the cover lid 61 covers the opening 13 a of the cover case 13, the heat of the heater 15 is
And the heat of the heater 15 acts on the rotating drum 11 efficiently.

[D. Control Unit] (FIGS. 1 to 5) A control box 70 is disposed at the lower right in the housing 3 and includes the motor 41 and the heater 1.
The control circuit 71 (see FIG. 6) for controlling the control circuit 5 is built in. A control circuit 71 is provided on the front of the control box 70.
Operation button 72a of a power switch (with an indicator light) 72 incorporated in the controller, a temperature setting dial 73a of a temperature setting device (a temperature setting device for setting a heating temperature of the heater 15) 73, and a processing time. Off timer 74
, A time setting dial 74a, a push button 76a of a start switch 76 for instructing start of operation, and an operation display lamp 77. As the start switch 76, an electromagnetic relay that is excited by pressing a push button 76a is used.

A limit switch 75, whose contact is opened and closed by a cover lid 61, is attached to the rear side wall of the housing 3. When the cover lid 61 comes to a use position, its pressing piece 61b (see FIG. 5 and the like) limits. The contact of the limit switch 75 is closed by pressing the actuator of the switch 75. Therefore, when the cover lid 61 is at a position other than the use position, the limit switch 75 keeps the contacts open.

The control box 71 and the processing section 7 are provided with a pair of power supply brushes 81 (not shown in FIG. 6). The power supply brush 81 includes a fixed-side contact 71 a externally attached to the control box 71 and a movable-side contact 71 b externally attached to the gear case 31. The contact 71b electrically contacts the fixed contact 71a.

The timer 74 is connected in series to a contact RL1a which is closed by a coil which is excited by pressing a push button 76a of a start switch 76. Therefore, power is supplied to the motor 41 and the heater 15 by the processing unit 7.
Is turned to the heating position (the power supply brush 81 is turned on), the cover lid 61 is closed (the limit switch 75 closes the contact), the power switch 72 is turned on, and the timer is set. It starts by pressing the push button 76a.

The power supply is stopped when the power switch 72 is turned off, when the cover lid 61 is moved to the non-use position (the limit switch 75 is opened), or when the timer expires. Is reached and the circuit is opened. When the power supply stops, the a contact of the start switch 76 opens automatically.
You have to follow the procedure described above. Therefore,
Inadvertent starting can be reliably prevented. The rotating drum type food heater 1 is configured as described above.

[E. Method of Use and Operation] (FIGS. 1, 2 and 5) Next, a method of use and operation of the rotary drum type food heater 1 will be described. Prior to use, it is checked whether the type of the rotating drum 11 (the presence or absence of a spiral guide or the roughness of the net) is suitable for the intended foodstuff. For example, when roasting sesame, the one with the smallest mesh is selected, and when trying to make a roasted potato, one with no spiral guide 53 and a relatively coarse mesh is selected. When replacing the rotary drum 11, the cover lid 61 is moved to the non-use position and the processing unit 7 is in the food input posture, the wing nut 55 is removed, the rotary drum 11 is pulled out, and another rotation is performed. Attach the drum 11.

First, the processing unit 7 is set to the food-supplying posture, and the desired food is supplied to the rotating drum 11. Next, the processing unit 7 is tilted to the posture at the time of heating, and the cover lid 61 is moved to the use position to engage the lid engaging pin 64 with the engaging hole 61a. Thus, the limit switch 75 closes the contact, and the contact of the power supply brush 81 contacts.
Further, a desired processing time is set by operating the time limit setting dial 74a. Then, when the push button 76a of the start switch 76 is pressed, the rotating drum 11 starts to rotate slowly, and the heater 15 generates heat, and the rotating drum 11
And heat the ingredients in it.

The food material in the rotating drum 11 moves in the inner surface of the peripheral wall 51 toward the opening 11a side by the movement in the circumferential direction due to the rotation of the rotating drum 11 and the feeding action by the spiral guide 53. When it comes off the upper end of the guide 53, it slides down and is again carried along the spiral guide 53. By repeating such a movement, heating is performed evenly while stirring. The heating condition of the food material can be seen through the glass front wall 21 of the cover case 13.

Although the powder and the scum fall off from the food material processed in this way, even if the processing unit 7 is in the heating posture, the heater 15 is located at a position avoiding the position directly below the rotary drum 11. , The powder or the like hardly directly hits the heater 15. When the time set by the timer comes, the driving of the motor 41 and the heater 15 is stopped. When taking out the foodstuff inside, an appropriate tray 91 (see FIG. 1) is placed on the bottom of the housing 3 and the cover lid 61 is opened to take out the processing unit 7. As a result, the ingredients in the rotating drum 11 fall onto the tray 91. After the food is taken out, the processing unit 7 is returned to the food input posture.

The embodiment of the present invention has been described above.
The specific configuration of the present invention is not limited to this embodiment, and any change in design or the like without departing from the spirit of the present invention is also included in the present invention. For example, in the embodiment, only the part (cover case) of the drum cover that surrounds the periphery of the rotating drum is changed in posture integrally with the rotating drum, but in some cases, the lid of the drum cover also rotates. The posture may be changed integrally with the drum. Further, the type of the heater in the present invention is not limited to that shown in the embodiment, and it is not necessary that all the rotating drums are made of a net.

[0036]

As described above, according to the present invention, the structure is relatively simple, the cost can be reduced, the food can be heated uniformly without unevenness, and the heating by the desired processing can be performed by an unmanned person. Can also be executed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a processed state of a rotary drum type food heater according to an embodiment of the present invention.

FIG. 2 is a front view of a state in which a part of the rotary drum type food heater shown in FIG. 1 is omitted.

FIG. 3 is an enlarged perspective view of a processing unit of the rotary drum type food heater shown in FIG. 1;

FIG. 4 is an enlarged perspective view of a rotary drum and a drum driving unit of the rotary drum type food heater shown in FIG. 1;

FIG. 5 is a vertical sectional view showing the rotary drum type food heater shown in FIG. 1 in a processing state.

FIG. 6 is a diagram showing a control circuit provided in the rotary drum type food heater shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rotary drum type food heater 11 ... Rotary drum 11a ... Opening 15 ... Heater 17 ... Drum drive 21 ... Part made of transparent material 27 ... Position changing means 41 ... Motor 51 ... Peripheral wall 53 ... Spiral guide 66 ... Drum cover

Claims (3)

[Claims] 1. A rotary drum having an open end and a cylindrical shape into which foodstuffs are charged, a drum driving unit to which the rotary drum is detachably mounted, a heater for heating the rotary drum from the outside, A control circuit for driving the motor and the heater, and the attitude of the rotating drum, at least, a heating attitude in which the opening thereof is inclined so as to be directed substantially obliquely to the side,
Equipped with a handle operation type attitude changing means for selectively changing to a take-out attitude in which the ingredients inside can fall by its own weight,
The control circuit has a rotary drum and an off-timer for setting a drive time of the heater, and the rotary drum has at least one of a structure provided with a spiral guide extending spirally along the inner surface thereof. A rotary drum type food heater characterized in that food in a rotary drum having a spiral guide is heated while repeatedly rising and falling by a rotating action of the rotary drum and a guiding action of the spiral guide. 2. A rotary drum type food heater according to claim 1, further comprising a drum cover surrounding at least the entire rotary drum at the time of heating, and a heater disposed inside the drum cover. Rotary drum type food heater. 3. A rotary drum type food heater according to claim 2, wherein the peripheral wall of the rotary drum is made of mesh, and a part of the drum cover is made of a transparent material. .