JPS6144495B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a hand mixer used for whisking eggs, stirring flour, etc. during preparation of cooking.

Configuration of conventional example and its problems As shown in FIG.
By the operation, the electric motor 3 built in the main body 1
Generally, a stirring blade 4 protruding from the main body 1 was driven to rotate by the electric motor 3.

Generally, when making a sponge cake, eggs and sugar are whisked, then flour or other powder is added to the whipped mixture and stirred. Although the whisking can be done with a conventional hand mixer, when stirring the flour, In conventional hand mixers, the rotation of the stirring blades 4 is continuous and too fast, so in the past, when stirring flour, a wooden screw or comb was used instead of a hand mixer. However, this method not only polluted the stirring blades, wooden sticks, and combs, but also caused problems in that the cooking process was only done well because the stirring of the flour was done by hand.

When stirring the flour mentioned above by hand, the following causes may fail: (1) If the flour is not added to the whisked mixture and stirred immediately, the flour will absorb the moisture from the foam and the flour will become lump-like. Become. (2) If you stir the flour too much, gluten will form in the flour and the bubbles will disappear. Generally, it is said that it is best to stir the powder and the powder so that the bubbles do not disappear. Mainly, if you make the above mistake, if you bake a sponge cake in an oven, etc., (1) powder balls will remain inside the sponge. (2) A soft and elastic sponge cake cannot be produced, resulting in a sponge cake with little swelling and no elasticity.

Purpose of the invention The present invention solves the above-mentioned conventional problems.
By changing the operation of the stirring blade without contaminating the wood or comb, and taking into account the causes of failure in stirring the powder, it is possible to perform everything from whisking eggs to stirring the powder extremely easily without requiring any skill. The purpose is to provide a hand mixer that can.

Structure of the Invention In order to achieve the above object, the present invention includes a main body containing a built-in electric motor, a speed control switch that controls the speed of the electric motor, a circuit that intermittently supplies power to the electric motor at regular intervals, A changeover switch is provided, which includes a stirring blade rotatably driven by the electric motor and protrudes from the main body to the outside, and switches the circuit, and the switching operation of the changeover switch turns on and off the rotation, and The stirring blade is driven to rotate continuously or intermittently. According to this configuration, when the circuit is turned on with the changeover switch, the stirring blade becomes intermittently rotated by operating the speed control switch. Even when the powder is added to the foamed mixture and stirred, it can be done evenly without the need for human hands.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 to 5. In Figures 2 to 4, 1
1 is a main body of a hand mixer, and this main body 11 has an electric motor 12 inside, a gear 14 that transmits the rotation of this electric motor 12 to a stirring blade 13, and the electric motor 12.
The lower opening of the main body 11 is covered with a bottom plate 16, and the bottom plate 16 is fixed to the main body 11 with screws 17 via the motor frame 15. Further, the rotor shaft 18 of the electric motor 12 has two bearings 1.
It is fixed to the motor frame 15 by a metal retainer 20 via a metal retainer 9 . The pair of gears 14 are fixed to the motor frame 15 via a gear holder 21 and a gear bearing 22, and the stirring blade 13 has a claw portion 1 of the gear 14 in a recessed portion 23a at the tip of its shaft 23.
4a is fitted to the gear 14, and when the stirring blade 13 is to be removed, it can be removed by pushing down the ejector 24 against the force of the ejector spring 25. .

A cooling fan 26 is fixed to the rotor shaft 18 of the electric motor 12. 27 is the electric motor 12
A circuit that supplies power intermittently at regular intervals.
This circuit 27 is connected by soldering to a mounting plate 30 on which a changeover switch 28 and a speed control switch 29 are mounted, and is attached to the main body 11 with screws 31. Reference numeral 32 denotes a wiring terminal, and this wiring terminal 32 connects the circuit 27 and the terminal of the electric motor 12. 33 is a handle portion formed integrally with the main body 11, and 34 is a power cord for supplying electric power.

The operation of the above configuration will be explained with reference to the circuit diagram in FIG.

First, when whipping eggs or the like, the changeover switch 28 is connected as shown by the solid line in FIG. 5 to turn off the circuit 27, as in the conventional hand mixer. When the speed control switch 29 is operated in this state, the electric motor 12 rotates continuously, and this continuous rotation also causes the stirring blade 13 to rotate continuously to whisk eggs and the like. When the flour is added and stirred after this whisking is finished, push in the knob 28a of the changeover switch 28 shown in FIG. , the changeover switch 16 is set to the fifth position.
When connected to the state shown by the dotted line in the figure, the circuit 27 is turned on, and the capacitor 35 in this circuit 27
The opening and closing of the gate of the thyristor 36 is controlled by charging and discharging. When the speed control switch 29 is operated in this state, power is intermittently supplied to the electric motor 12 at regular intervals, thereby causing the stirring blades 13 to rotate intermittently to mix the powder.

The above-mentioned changeover switch 28 is always connected to the continuous or intermittent side, and the state is obvious from the change in the height of the knob 28a of the changeover switch 28 from the main body 11. The changeover switch 28 has a structure using a heart cam.

In the above embodiment, the changeover switch 28 is provided at a different position from the speed control switch 29, but it may be incorporated into a part of the speed control switch 29 for operation. Alternatively, it is sufficient if the switching operation can be performed intermittently.

Also, the intermittent time of the electric motor 12 was experimentally determined to be 1/
When the stirring blade 13 was turned on for 1000 seconds and turned off for 1/1000 seconds, and the diameter of the stirring blade 13 was about 50 mm, the total number of rotations of the stirring blade 13 for one rotation was preferably about 90 to 220 rotations.

Effects of the Invention As described above, according to the present invention, there is provided a speed control switch that controls the speed of an electric motor, a circuit that intermittently supplies power to the electric motor at regular intervals, and a main body that is rotationally driven by the electric motor. In addition to providing stirring blades that protrude further outward, a changeover switch is provided to change over this circuit, and by switching the changeover switch, the circuit is turned on and off.
This device is designed to rotate the stirring blade continuously or intermittently when the switch is turned off, and the stirring blade can be rotated continuously or intermittently by switching the changeover switch. From whipping to stirring of the powder, the stirring blade alone can be used.Thus, the stirring blade can be rotated intermittently at regular intervals to mix the powder, which in the past would often fail without skill. By doing this, it is possible to reliably stir the powder to prevent the bubbles from disappearing, which has been said for a long time, and as a result, anyone can mix the powder evenly without the hassle of human hands. It is possible to carry out the stirring of

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional hand mixer, Figure 2 is a perspective view of a conventional hand mixer;
The figure is a perspective view of a hand mixer showing an embodiment of the present invention, and FIG. 3 is a cutaway front view of the same hand mixer.
FIG. 4 is a sectional view of the same side, and FIG. 5 is a circuit diagram of the same. DESCRIPTION OF SYMBOLS 11... Main body, 12... Electric motor, 13... Stirring blade, 27... Intermittent power supply circuit, 28... Changeover switch, 28a... Changeover switch knob, 2
9...Speed control switch.

Claims (1)

[Claims] 1. A main body containing a built-in electric motor, a speed control switch that controls the speed of the electric motor, a circuit that intermittently supplies power to the electric motor at regular intervals, and a main body that is driven to rotate in opposite directions by the electric motor,
and a pair of stirring blades protruding from the main body to the outside, and a changeover switch for switching the circuit, and by switching the changeover switch, the circuit is turned on and off, and the stirring blade is operated continuously or intermittently. The rotational drive is approximately 1/1000
Hand mixer set at an interval of seconds on and 1/1000 seconds off.