JP2788563B2 - Electric cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric cooker for cooking an object to be cooked in a container by rotating a cutting means.

[0002]

2. Description of the Related Art Conventionally, there is provided a cutting / stirring cutter which is located in a container mounted on an upper part of a main body case and is rotated by a motor built in the main body case, and which controls the operation of the electric motor. 2. Description of the Related Art A mixer is known as an electric cooker for cooking an object to be cooked in a container by rotating a cutting and stirring cutter by operation.

[0003] In the electric motor, the body case functions as one component of the electric motor by sandwiching the field assembly and also serving as a frame forming the outer periphery of the electric motor, and the field assembly is a mounting portion of the electric motor. The motor is so-called built-in by directly attaching and fixing to the main body case forming the main body outer shell.

In such a mixer, since the field assembly is directly held by the body case and is in contact with the body case, the body case is heat resistant due to the heat generated by the field assembly which is a heating element. It must be formed of resin.

[0005]

However, the heat-resistant resin has difficulty in toning due to a small degree of freedom in color development and shape formation, and has many design restrictions. It would be narrowed freedom of
Etc. There were many problems.

[0006] The present invention has been made in view of the above problems, it is an object without narrowing the body case design freedom of an outer appearance parts, deer
Also, it is to provide an electric cooker that does not lead to cost-up.

[0007]

In order to achieve the above-mentioned object , a motor field is installed in a main body case having an upper wall.
An assembly is provided, and this field assembly is
Arm and the lower frame, and placed on the upper wall.
To the vessel, provided with a cutting means which is rotationally driven by the electric motor, by operation of a switch for controlling operation of the electric motor in an electric cooker to cook the food of the cutting means within said container by rotating the And the upper frame and
The lower frame is made of a heat-resistant material,
Place the upper frame at a position separated from the lower surface of the wall
It is characterized by having attached .

[0008]

In the electric cooker according to the present invention, the upper frame is a book.
Installed at a position separated from the lower surface of the upper wall of the body case
The body case must be made of heat-resistant resin.
This eliminates the need for color and shape the body case.
It can be molded with resin with high degree of freedom,
It will be very advantageous. Also, attach the upper frame to the
Made of heat-resistant resin
There is no need to make the upper frame large,
Can be reduced. In addition, the upper frame
Make sure that the unit is
With this, even if the upper frame is heated,
Heat is difficult to transfer to the upper wall, and
Parts are prevented from being deformed by heat.
As a result, the upper wall of the body case must be made of heat-resistant resin.
Also means for cutting the container placed on the upper wall,
Connection to the motor in the case
You.

The electric motor has a frame for holding the field assembly from both sides formed of a heat-resistant member having a low thermal conductivity, and is attached to the main body via the frame.
It becomes difficult for the heat generated by the field assembly, which is a heating element, to be transmitted to the main body, so that it is not necessary to take measures against the heat of the main body.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electric cooker according to the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, a mixer 10 as an electric cooker has a main body case 11 and a container 12 mounted on the upper surface of the main body case 11.

The main body case 11 is formed by vertically combining an upper case 13 and a lower case 14, and a switch unit 15, a motor (electric motor) 16 and a code reel unit 17 are incorporated in the main body case 11. I have.

As shown in FIG. 3, the upper case 13 is formed in an inverted cup shape whose bottom is opened by a rectangular opening, and has an inclined surface 1 having a front end inclined downward at an outer surface front.
8 and a mounting portion 20 having a substantially flat circular upper surface 19 for mounting the container 12 at the rear of the outer surface.

FIGS. 4 and 5 show the inner surface of the upper case 13.
As shown in FIG. 3, a cylindrical flange 22 is formed on the back surface 21 side of the upper surface ( upper wall portion) 19, and two sets of ribs 23 and 24 are provided on both outer sides of three openings 48 described later. , Two sets of ribs 25 and 26 project from the rear of the flange 22, and four bosses 27 project around the flange 22 toward the bottom.

The two sets of ribs 23, 24 are composed of a pair of ribs 23 on which the mounting plate 15a of the switch unit 15 is mounted and a pair of ribs 24 sandwiched from both sides of the mounting plate 15a. ing.

The two sets of ribs 25 and 26 are composed of a pair of ribs 25 facing each other with a thickness separation of the code reel unit 17 and a pair of ribs 26 facing each other with a width separation of the code reel unit 17. , Are arranged at orthogonal positions.

Two bosses 28 are formed on the flange 22 at diametric positions.

As shown in FIGS. 6 and 7, the lower case 14 is formed in a dish shape, and has four legs 29 located at substantially four corners and one leg located at the rear end on the outer surface of the bottom. Leg 30
In addition, a plurality of ventilation holes 31 penetrating the bottom front and rear surfaces are formed at the bottom front end and substantially at the center of the bottom, and a power cord 46 to be described later is inserted and removed at the bottom rear end corner. It has a recess 33 in which an opening 32 is formed.

Each leg 29 is connected to a boss 35 described later.
Is located on the back side of the front two legs 29
Rubber feet 29a for slip prevention are embedded.

On the inner surface 14a side of the lower case 14, two ribs 34 are provided at positions corresponding to the two ribs 23 when combined with the upper case 13, and four ribs are similarly provided at positions corresponding to the four bosses 27. Each of the bosses 35 is protruded, and a pair of ribs 36 are formed in the vicinity of the recess 33 so as to face each other with a thickness separation of the code reel unit 17 therebetween.

On the back side of the inclined surface 18, two sets of ribs 2 are provided.
The switch unit 15 is installed with the mounting plate 15a sandwiched between 3, 3 and 24, and the motor 16 with the upper part inserted into the flange 22 is installed on the back surface 21 side of the upper surface 19 (see FIGS. 1 and 5). ).

The switch unit 15 has three switch knobs 37a, 37b, and 37c arranged in parallel above the mounting plate 15a to control the operation of the motor 16.
(See FIGS. 1 and 2) The switch knobs 37a and 37c are constantly urged in a protruding state by urging means such as a coil spring so as to be freely pressed, and the switch knob 37b is provided with a coil spring or the like capable of selecting the protruding / pressed state. It is energized by urging means.

The switch knob 37a performs a flash (intermittent) operation for operating the motor 16 only when pressed, the switch knob 37b performs a continuous operation for operating the motor 16 in the pressed state, and the switch knob 37c performs pressing. To bring the switch knob 37b into the protruding state to stop the operation of the motor 16.

As shown in FIG. 8, the motor 16 has a drive shaft 39 located at the center of the vertical axis and included in the field assembly 38. The field assembly 38 includes an upper frame (upper frame) 40 and an upper frame (upper frame) 40. Lower frame ( lower frame
) Is sandwiched between upper and lower sides by 41.

The upper frame 40 is formed in a cap shape from a heat-resistant resin which is a heat-resistant member having a low thermal conductivity, and forms an upper outer shell of the motor 16 by projecting the drive shaft 39 from the center of the upper surface 40a. (See FIG. 1). On the outer peripheral edge of the upper frame 40, two screw holes 42 are formed which are open on the upper surface 40a and are located at the diameter positions of the upper surface 40a. A hole (not shown) is formed.

The lower frame 41 is formed in a frame shape whose both sides are open, and forms a lower outer shell of the motor 16 by rotatably holding the drive shaft 39 around the lower surface 41a (FIG. 1). reference). On the side of the lower frame 41, the lower surface 4
Two screw holes 43 which are open to the side 1a and communicate with the screw holes 42 are formed.

The motor 16 has a boss 28
And the upper frame 40 and the lower frame 41 sandwich the field assembly 38 to form the motor 16 at the same time as the motor S is formed by screwing the screw S inserted from the screw hole 43 to the boss 28. 21 and is fixed to the upper case 13 with the upper portion of the upper frame 40 inserted into the flange 22 (see FIG. 8).

As shown in FIG. 9, the cord reel unit 17 is formed in a slightly thick disk shape in which the upper cover of the lower cover 45 is closed by the upper cover 44.
The power cord 46 is wound around a rotating part (not shown) in a layered manner so that it can be pulled out or wound up, and is housed horizontally in the lower cover 45 (see (a)).

One end of the power cord 46 has an upper cover 44.
Is connected to a pair of power supply terminals 47 protruding from the outer surface of the center of the cord reel unit, and the other end is connected to a plug 46a exposed from the outlet 17a of the cord reel unit 17 (see (b)). .

An urging member (not shown) such as a mainspring for urging the power cord 46 in the winding direction is provided in the cord reel unit 17, and the rotating portion is stopped or pulled when the power cord 46 is pulled out or wound. Is provided with an automatic winding mechanism comprising an operation control member (not shown) for rotating.

With this automatic winding mechanism, when the power cord 46 is pulled out, the cord reel unit 17
When the drawer is stopped, the drawer stops without returning, and when the drawer is pulled out, it is wound up without stopping. This stop or winding operation can be sequentially repeated.

Therefore, when using the mixer 10,
By pulling out the power cord 46 from the outlet 17a with the insertion plug 46a exposed outside the cord reel unit 17, the power cord 46 can be extended by an arbitrary length.
When the mixer 10 is not used, the power cord 46 can be automatically wound into the cord reel unit 17.

The code reel unit 17 has a pair of ribs 25 sandwiching the thickness direction between the pair of ribs 26 and the widthwise direction between the pair of ribs 26, so that the upper cover 44, which is the outer surface on which the pair of power supply terminals 47 are provided, The motor 1 is positioned on the rear end side of the upper case 13 opposite to the 16 side.
6 is arranged and fixed in a vertically installed state (FIGS. 1 and 5).
reference).

The pair of power supply terminals 47 are connected to the motor 16.
Is positioned on the opposite side of the motor 16, there is no need to place a fixed distance between the cord reel unit 17 and the motor 16 in order to secure an insulation distance from the motor 16 and a space for leading the lead wire L. The code reel unit 17 can be arranged close to the cord reel unit 17 (FIG. 5).
reference).

The inclined surface 18 is provided with switch knobs 37a, 37
It has three oval openings 48 that are opened side by side to project b and 37c, respectively (see FIGS. 2 and 3).

The mounting portion 20 has a circular opening 49 at the center of the upper surface 19, on the periphery of which a step portion 49a protrudes.
Six engaging claws 50 protrude from the inner surface of the upper surface 19 spaced apart from the peripheral edge at equal intervals along the peripheral edge.

On the peripheral edge of the upper surface 19, three square bar-shaped bases 51a and three cylindrical bases 51b are alternately located between the adjacent engaging claws 50 and outside the engaging claws 50. (See FIGS. 2 and 3).

At the approximate center of the opening 49, the drive shaft 39 of the motor 16 is located with its upper end protruding from above the step 49a (see FIGS. 1 and 8).

Then, the upper case 13 and the lower case 14 are combined vertically, and the screws inserted into the bosses 35 from the leg portions 29 are screwed to the bosses 27 to thereby form the upper case 1.
3, the opening of the bottom surface is closed to form the main body case 11, and the switch unit 15 is sandwiched and fixed between the ribs 23 and 34.

Further, the lower end of the cord reel unit 17 whose upper end is clamped and fixed to both the ribs 25 and 26 is
6 and the inner surface 14a of the lower case 14 so that the cord reel unit 17 is disposed vertically behind the motor 16 (see FIGS. 1 and 5).

Therefore, the switch unit 15 and the code reel unit 17 are located forward and backward with the motor 16 interposed therebetween.
8, the center of the switch unit 15 in the width direction, the center of the motor 16 in the width direction, and the center of the code reel unit 17 in the width direction are aligned with the main body case 11.
Is located on the center line in the width direction.

That is, the switch knobs 37a, 37b, 3
7c, the motor 16, and the cord reel unit 17 installed in the vertical position are arranged in a line in the front-rear direction of the main body case 11 (see FIG. 5).

At this time, the insertion plug 46a projecting from the outlet 17a of the cord reel unit 17 passes through the opening 32 of the lower case 14 and is located in the recess 33 located at the rear end corner of the main body case 11. .

Drive shaft 3 protruding from the upper surface of main body case 11
9, a drive coupling 52 is detachably screwed into the drive coupling 52. The drive coupling 52 has a plurality of engaging projections 52a on the upper surface of the disk and a plurality of blower blades 52b radially protruding on the lower surface. (See FIG. 1).

The container 12 is mounted on the mounting portion 20.

The container 12 has a cylindrical container body 53 having an open upper end 53a and a lower end 53b, and a cylindrical bottle support 54 attached to the lower part of the container body 53 (see FIGS. 1 and 2). ).

The container body 53 is provided with a handle 5 formed on the side.
5 and a lid 56 for closing the opening of the upper end 53a, and is detachably attached to the bottle support 54 via a screw portion 57 formed on the outer peripheral surface of the lower end 53b.

The bottle support 54 has a partition wall 58 formed by partitioning the inside of the cylinder up and down.
Inner wall 5 protruding from the lower surface of partition 58 so as to be spaced apart from 4a
4b. A screw portion 59 is formed on the upper inner surface of the outer peripheral wall 54a.

The partition 58 has a step 58a at the periphery of the upper surface.
Are formed, and a rotating shaft 60 penetrating through the front and back surfaces is mounted on the adjustment liner 60a and is rotatably mounted. A rubber ring 61 is attached to the step 58a, and a cutter 62 is attached to the upper part of the rotating shaft 60, and a driven coupling 63 is attached to the lower part (see FIG. 1).

As shown in FIG. 10, the cutter 62 has a cutting and stirring blade 64 and a crushing blade 65 which are vertically separated from each other. The food to be cooked can be crushed by the crushing blade 65 ((a), see FIG. 1).

The cutting and stirring blade 63 and the crushing blade 64 are arranged so that the respective blade portions 64a and 65a are orthogonal to each other (see (b)).

The driven coupling 63 is formed in a disk shape with a plurality of engaging projections 63a radially protruding from the lower surface (see FIG. 1).

The screw portion 59 is screwed into the screw portion 57 and the bottle support 54 is integrally attached to the container main body 53, so that the opening of the upper end 53a of the container 12 can be closed by the lid 56. At the same time, the opening at the lower end 53 b is closed by the bottle support 54 via the rubber ring 61, and the bottle has a bottle shape in which the cutter 62 is located at the lower part inside the container main body 53.

Further, the bottle support 54 integrated with the container main body 53 is placed on the upper surface 19 of the mounting portion 20 by fitting the engaging claw 50 to the outside of the inner peripheral wall 54b in an engaged state. The engagement projection 52a and the engagement projection 63a are engaged, and the drive coupling 52 and the driven coupling 63 are connected in an engaged state (see FIG. 1).

Therefore, the rotation of the motor 16 is
From the drive coupling 52 through the driven coupling 6
3 to rotate the cutter 62.

At this time, the bottle support 54 placed on the upper surface 19 is moved to the lower end 54c by the two bases 51a and 51b.
A gap is formed between the motor 1 and the upper surface 19, and the rotation of the blower blade 52 b due to the rotation of the drive coupling 52 causes the motor 1 to be sent out of the gap to the outside of the upper case 13.
An air passage for cooling 6 is formed.

That is, the blower blade 52b rotates and the gap a
By discharging the air inside, the air enters through the vent hole 31 of the lower case 14, passes through the field assembly 38 from the lower frame 41 of the motor 16, passes through the through hole of the upper frame 40, and is And a ventilation path is formed from the opening 49 to the outside through the gap between the lower end portion 54c and the upper surface 19 and out of the main body case 11.

It should be noted that a small cup 65 can be detachably attached to the bottle support 54 instead of the container body 53.

The cup 65 has a screw portion 57 similar to that of the container body 53 formed on the outer peripheral surface of the upper opening. The screw portion 57 is screwed upside down to screw the screw portion 57 onto the bottle support 54 so as to be above the bottle support 54. Then, a closed space having a bottom as the partition 58 on which the cutter 62 is protruded is formed (see FIG. 1).

Next, the operation of the electric cooker having the above configuration will be described.

First, the mixer 10 is placed on a table or the like,
With the insertion plug 46a exposed from the recess 33 of the lower case 14, the power cord 46 is pulled out of the cord reel unit 17 by a required length.

By stopping the drawer, the power cord 46 stops in the pulled-out state without returning, so the insertion plug 46a is connected to the power outlet.

By connecting the insertion plug 46a to a power outlet, the motor 16 can be energized.

Subsequently, the bottle support 5 is attached to the container body 53.
By integrally mounting the container 4, the bottle 62 is mounted on the mounting portion 20 of the main body case 11 by positioning the cutter 62 at the lower portion inside the container main body 53.

After the object to be cooked is placed in the container 12 mounted on the main body case 11, the lid 56 is closed, and the switch knob 37 is opened.
a and 37b are operated to drive the motor 16.

When the motor 16 is driven, the cutter 62 rotates, and the object to be cooked in the container 12 is stirred and cut and crushed, and is cooked.

At the time of cooking, flash (intermittent) operation is performed by the switch knob 37a or continuous operation is performed by the switch knob 37b, depending on the cooking method. Continuous operation is
It can be stopped by the switch knob 37c.

At the end of cooking, the power cord 46 is wound around the cord reel unit 17 without stopping by pulling out the plug 46a.

By the way, the code reel unit 17
By disposing the pair of power supply terminals 47 on the opposite side of the motor 16 and vertically disposed behind the motor 16, it is not necessary to secure an insulation distance with the motor 16 and a space for leading the lead wire L. , Can be arranged close to the motor 16.

Therefore, the power cord 46 is formed into a cord reel unit and stored in the main body case 11, and the main body case 11 can be reduced in size. Therefore, a large space is not required for installation and storage, and the cost is reduced. Down becomes possible.

In particular, the switch unit 15, the motor 16
And the code reel units 17 are arranged in a line in the front-rear direction of the main body case 11 so that the main body case 11
The front and rear depths of the main body case 11 can be made larger than the left and right lateral widths of the main body case 11.
It is possible to enhance the sense of stability at the time of operation of the 37b and 37c.

The switch knobs 37a, 37b, 37
In order to enhance the sense of stability during the operation of c, rubber feet 29a for non-slip are embedded in the two front legs 29, but the front and rear depth dimensions of the main body case 11 are increased. As a result, the pressing direction at the time of operating the switch is positioned between the front and rear legs 29, and the front leg 29
In this case, the slip force can be effectively prevented only by providing the rubber feet 29a only on the front legs 29.

Further, the motor 16 is fixed to the flange 22 with the upper portion of the upper frame 40 inserted therein, and the upper frame 40 formed of a heat-resistant resin is interposed between the motor 16 and the upper case 13. This makes it difficult for the heat generated by the field assembly 38, which is a heating element, to be transmitted to the upper case 13. The upper frame 40 is the upper case 1
3 is attached at a position separated from the back surface 21 of the upper surface 19.
Because it is in the state, the upper frame 40 is heated
The heat of the upper frame 40 is also
It is difficult to be transmitted to.

Therefore, the thermal deformation of the upper case 13 with the drive shaft 39 protruding from the opening 49 , particularly the thermal deformation of the upper surface 19
Does not occur, and the center of the driven coupling 63 of the bottle support 54 placed on the upper surface 19 and the center of the drive coupling 52 of the drive shaft 39 do not shift.

[0075] Further, since the thermal management of the upper case 13 becomes unnecessary, necessary to use a heat-resistant resin to the upper case 13 is <br/> Ku, Therefore, the free upper case 13 of the color and shape forming
It can be molded with high quality resin
This is advantageous. In addition, the upper frame 40 is
13 so that it is made of heat-resistant resin.
It is not necessary to make the upper frame 40 large,
Therefore, cost can be reduced.

In addition, since the upper frame 40 and the lower frame 41 are assembled and fixed to the upper case 13 at the same time, the process of assembling the motor 16 is simplified, and the cost is reduced.

The cord reel unit 17 is not limited to one having an automatic winding mechanism, but may have a manual winding mechanism using winding means such as a handle.
In this case, the winding means is connected to the upper case 1 via the transmission means.
By exposing the power supply terminal 3 to the outside, the pair of power supply terminals 47 can be positioned on the opposite side of the motor 16, and the same effect as in the case where the automatic winding mechanism is provided can be obtained.

[0078]

As described above, the electric cooking device according to the present invention has a motor casing in a main body case having an upper wall.
A field assembly is provided and this field assembly is
Between the upper frame and the lower frame,
A cutting device rotatably driven by the electric motor in a container placed in the container, and an electric motor for cooking an object to be cooked in the container by rotating the cutting device by operating a switch for controlling the operation of the electric motor. A cooker , wherein the upper frame is
The arm and the lower frame is formed of a heat-resistant member, the body Quai
The upper frame at a position spaced from the lower surface of the upper wall
The feature is that the system is attached .

For this reason, the upper frame is the upper wall of the main body case.
It is installed at a position separated from the lower surface of the part
This eliminates the need to form the body case with heat-resistant resin.
For this reason, the body case has a high degree of freedom in color development and shape formation.
Can be molded with high resin, which is very advantageous in design
It becomes something. In addition, the upper frame was covered with the body case
Upper frame made of heat-resistant resin
Does not need to be made large, thus reducing costs.
Can be planned. In addition, the upper frame is
By mounting at a position away from the upper wall,
Even if the upper frame is heated, the heat of this upper frame is
And the upper wall is not
Is prevented from being deformed.
Even if the upper wall of the case is not made of heat-resistant resin,
Cutting means for the container placed on the
The connection with the machine can be secured.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing the overall configuration of a mixer according to the present invention.

FIG. 2 is a perspective view of a mixer.

FIG. 3 is a perspective view of an upper case.

FIG. 4 is a sectional view of an upper case.

FIG. 5 is a bottom view of the mixer with a lower case removed.

FIG. 6 is a perspective view of a lower case.

FIG. 7 is a side view of the lower case.

FIG. 8 is a cross-sectional view of the upper case with the motor mounted, as viewed from the rear end side.

9A and 9B show a code reel unit, wherein FIG. 9A is a perspective view of an upper cover, and FIG. 9B is a perspective view of a lower cover.

10A and 10B show a cutter, wherein FIG. 10A is a perspective view of a bottle cover, and FIG. 10B is a plan view of the bottle cover.

[Explanation of symbols]

 Reference Signs List 10 mixer 11 main body case (main body) 12 container 16 motor (electric motor) 38 field assembly 40 upper frame (frame) 62 cutter (cutting means)

Continued on the front page (72) Inventor Toru Tanigawa 43, Horiyamashita, Hadano-shi, Kanagawa Prefecture Inside the Hadano Plant of Tokyo Electric Co., Ltd. (56) References JP-A-59-108519 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47J 43/046 B02C 18/08

Claims (1)

(57) [Claims] 1. An electric motor housing in a main body case having an upper wall.
A field assembly is provided and this field assembly is
Between the upper frame and the lower frame,
A cutting device rotatably driven by the electric motor in a container placed in the container, and an electric motor for cooking an object to be cooked in the container by rotating the cutting device by operating a switch for controlling the operation of the electric motor. A cooker , wherein the upper frame and the lower frame are formed of a heat-resistant member.
To a position separated from the lower surface of the upper wall of the main body case.
An electric cooker having a frame attached thereto.