JPH02218398A - Cordless iron - Google Patents

Abstract

PURPOSE:To improve safety by preventing the heating of scissors consisting of magnetic bodies in the case when said scissors are placed on a placing board, by installing a magnetic flux generator onto the placing board for an iron body having a base consisting of a magnetic body and installing a placing sensor for operating the magnetic flux generator in correspondence with the mounting/demounting of the iron body, onto the placing board. CONSTITUTION:When the temperature of a base 2 reaches a previously set, temperature, a temperature sensor 11 detects this state, and a controller 10 stops the electric conduction to a magnetic flux generator 7. Further, when an iron body 1 is kept for a long time in the placed state on a placing base 5, the electric conduction to a magnetic flux generator 7 is suspended at the time point where the time which is previously set by a limit time control timer 12. Further, when scissors consisting of magnetic bodies are erroneously placed onto the placing board 5, a placing sensor 9 does not operate, and the opened state is kept. Therefore, the electric conduction to the magnetic flux generator 7 is kept in suspension state, and the trouble of heat generation of the scissors which causes burn wound can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a cordless iron having a base heated by magnetic induction.

(Prior art) Conventionally, this type of iron, disclosed in Japanese Utility Model Application Publication No. 63-189199, has an iron main body provided with a base made of a magnetic material and a mounting table provided with a magnetic flux generator. In addition to providing a power switch, the magnetic flux generator is connected to a control circuit for controlling in conjunction with a temperature sensor or a timed control timer, and by closing the power switch and operating the magnetic flux generator. A cordless iron has been proposed in which the base is heated and the base is maintained at a predetermined temperature by automatically shutting off the power supply circuit based on the operation of the temperature sensor or the operation of a timed control timer.

(Problem to be Solved by the Invention) In the prior art, the base of the iron main body made of a magnetic material is placed on a mounting table and the base is heated by magnetic induction. If a pair of scissors, a knife, a spoon, or the like is placed on the device by mistake, the scissors will be heated to a high temperature by magnetic induction, resulting in burns.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a cordless iron in which a magnetic flux generator can be operated only when the iron body is placed on a mounting table.

[Structure of the Invention] (Means for Solving the Problem) The present invention provides a magnetic flux generator 7 on the fi mounting table of the iron main body 1 provided with the base 2 made of a magnetic material, and responds to the attachment and detachment of the iron main body 1. A mounting sensor 9 for operating the magnetic flux generator 7 is provided on the mounting table 5.

(Function) When the iron body 1 is placed on the mounting table 5, the placement sensor 9 detects this and operates the magnetic flux generator 7 to generate magnetic flux and heat the base by magnetic induction.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

Reference numeral 1 denotes an iron body, which has a handle 4 provided on a boat-shaped base 2 made of a magnetic material with low electrical resistance and high magnetic permeability through a base cover 3. Reference numeral 5 denotes a mounting table for the iron main body 1, on which a magnetic flux generator 7 is provided on the back side of the upper surface 6 so as to face the base 2.

8 is an operating body such as a magnet provided at the lower base end of the handle 4, and 9 is a mounted sensor such as a reed switch protruding from the upper surface 6 of the mounting base 5 so as to face the operating body 8. It is. This placement sensor 9 operates the magnetic flux generator 7 with the operating body 8 when the iron main body l is placed fl on the placement table 5.

10 is provided on one side of the mounting table 5, and is connected to the magnetic flux generator 7.
This control device 10 is a control device that controls energization to the
is connected to the above-mentioned installed sensor 9, a temperature sensor 11 protruding from the upper surface 6 to detect the temperature of the base 2, and a time-limited timer 12 for cutting off the power after a predetermined energization time. .

13 is provided protrudingly from the upper surface 6 of the above-mentioned placing stand 5 to
This support part 13 supports the wafer with a gap of about 3 to 5 mm, and this support part 13 is made of heat-resistant rubber or the like. The support portions 13 are provided, for example, at one location on the distal end side and two locations on both sides of the base end side of the base 2, so as to support the iron main body 1 at three locations.

Next, the operation of the above structure will be explained.

When the iron main body 1 is set on the mounting table 5, the operating body 8 provided on the iron main body 1 closes the mounting sensor 9, and the control device 10 is operated to start supplying power to the magnetic flux generator 7. Further, in accordance with the operation of the placement sensor 9, the time limit control timer 12 starts counting time. The alternating magnetic flux generated by the start of energization of the magnetic flux generator 7 penetrates the base 2 formed of a magnetic material, causing eddy current loss and hysteresis in the base 2. As a result, the base 2 generates fever.

When the base 2 reaches a preset temperature, the temperature sensor 11 detects this and the control device 10 stops energizing the magnetic flux generator 7. Note that when the temperature of the base 2 decreases, the temperature sensor 11 detects this and energizes the magnetic flux generator 7 again to repeat heat generation. In this way, the base 2 is maintained at the set temperature.

Next, when the iron main body 1 is lifted from the mounting table 5 in order to iron the iron, the mounting sensor 9 detects this and the iron is opened, and along with this opening operation, the control device 10 stops the energization of the magnetic flux generator 7. Timed control timer 1 at the same time as stopping
2 is reset.

Furthermore, if the iron main body 1 is left on the mounting table 5 for a long time, the power supply to the magnetic flux generator 7 can be stopped when the time set in advance by the time limit control timer 12 is reached. .

Furthermore, if scissors made of a magnetic material or the like is accidentally placed on the mounting table 5, the placement sensor 9 does not operate and remains in the open state. Therefore, the power supply to the magnetic flux generator 7 remains stopped, and the scissors etc. do not generate heat and cause burns.

As described above, in the cordless iron which heats the base 2 by magnetic induction by placing the iron body 1 provided with the base 2 made of a magnetic material on the mounting table 5 which is not provided with the magnetic flux generator 7, the iron body 1 is heated by magnetic induction. By providing the mounting table 5 with a placement sensor 9 that operates when the main body 1 is placed, the magnetic flux generator 7 is not energized even if scissors or the like made of a magnetic material is placed on the mounting table 5. As a result, scissors and the like do not generate heat, improving safety.

Further, since a support portion 13 for supporting the iron body 1 with a gap is provided on the upper surface 6 of the placing table 5, the iron body 1 is placed on the placing table 5 again after ironing.
When the base 2 is placed on the table, the heat of the base 2 is not transferred to the mounting table 5 side, and the base 2 can be immediately heated to a predetermined temperature.

It should be noted that the present invention is not limited to the above-mentioned embodiments. For example, the iron body may be provided with a receiving section provided with a mounted sensor such as a limit switch, and an operating body that can be inserted into the receiving section. If you place the iron on the
Various modifications are possible, such as operating the placement sensor using the operating body, or providing a placement sensor such as a load cell on the placement table that closes when a load above a certain level is applied to detect the iron body.

[Effects of the Invention] The present invention provides a magnetic flux generator on a mounting stand of an iron body provided with a base made of a magnetic material, and a mounting sensor that operates the magnetic flux generator in response to attachment/detachment of the iron body. By providing the writing table, even if scissors made of a magnetic material are placed on the placing table, the scissors or the like will not be heated, and a cordless iron with improved safety can be provided.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing one embodiment of the present invention. 1... Iron body 2... Base 5... Placement table 7... Magnetic flux generator 9... Placement sensor... Iron body 2... Base 5... Placement table 7...・Magnetic flux generator patent applicant Toshiba Thermal Appliances Co., Ltd. Representative Patent attorney Choshi Taki Figure 1

Claims (1)

[Scope of Claims] An iron main body provided with a base made of a magnetic material, a mounting stand for the iron main body provided with a magnetic flux generator, and an iron main body provided on the mounting stand to generate the magnetic flux in response to attachment and detachment of the iron main body. A cordless iron characterized by comprising a placement sensor that operates the iron.