KR20020096802A - Automatic knife by electric motor with rechargeable battery - Google Patents

Abstract

PURPOSE: A chargeable motor-driven knife is provided to easily cut a material by reciprocating a knife forward and backward with power, to minimize the unnecessary vibration of the knife, and to easily charge the power. CONSTITUTION: A rotary roller(7) is integrally attached to a motor(2) connected with a chargeable battery(3). A closed threaded recess is formed on the rotary roller. A device attached to the knife shaft and combined with a power transmitting unit(8) having a rotary wheel(9) converts the rotational motion of the motor to the forward and backward reciprocating motion of the knife. A pressurizing member(11) is installed to pressurize the knife shaft. A sheath type charger includes an insertion hole for inserting a knife, a rectifier, a planar contact earth(5), a charge lamp, and a power supply cord.

Description

Rechargeable Electric Knife {AUTOMATIC KNIFE BY ELECTRIC MOTOR WITH RECHARGEABLE BATTERY}

When cutting a thick material or the like, it has conventionally been an easy method to cut a portion by artificially reciprocating the blade back and forth using a knife having a fixed blade. Although this method is effective, it is inconvenient to apply some artificial force, and the cutting precision is also reduced. This cutting action occurs in a myriad of kitchens, factories, offices, offices, and the like, such as home, group meals, and by making such a cutting operation easier, it was necessary to increase the effect of cutting operation using a knife and to improve the precision.

It is understood that the cutting method by moving the blade using the motor power has already been devised, but the present invention is an unnecessary vibration (up, down, left and right) that may occur during the generation, conversion, and transmission of power for the forward and backward movement of the blade. The method focuses on the method that can minimize the cutting speed and secure the cutting precision, and the method that can be used in the same way as the knife of the fixed blade method when the electric power is not used, and the method that can be easily charged.

The present invention minimizes the unnecessary vibration (up and down, left and right) that can be destroyed when the blade is moved forward and backward by inserting the shaft of the blade sufficiently close to the inside of the handle, and the motor (2) rotational movement as the blade forward and backward movement In the process of conversion, by using the rotary roller (7) and the power transmission port (8) connected to the circular groove, the front and rear movement of the blade is shortened and smoothed to minimize unnecessary friction and unnecessary vibration (up, down, left and right) of the blade. .

Reciprocating the blade back and forth is to make the cutting easier by ensuring the cutting surface as much as possible, this effect can increase the number of reciprocating motion of the blade can exhibit a sufficient effect even with a short distance of reciprocating. In addition, as the moving distance is short, the necessary vibration (up, down, left and right) of the blade can be reduced as much as possible, thereby improving cutting precision.

In the upper portion of the handle is a cover (10) covering the motor starting switch (6) with it. The cover is pushed back when the motor power is in use to enable switch maneuvering, and when the power is not in use, it is covered forward to serve as a complete handle.

In addition, the pressing member 11 is attached to the lower part of the cover,

When the cover is pushed forward, the shaft of the blade is pressed from the left and right by the pressing member 11 so that the blade is fixed, so that the same effect as in the case of using a knife having a fixed blade,

When the cover is pushed open, the pressure drop is positioned away from the blade so that the blade moves forward and backward by the motor power.

The motor is operated by the power of the rechargeable battery (3), the rechargeable battery forms a flat contact ground (5) for charging the lower part of the front of the knife handle to facilitate the charging of the power source, the sheath charger (25) A flat contact ground (5) for charging is formed at the bottom.

Charging can be easily automatic charging by placing the knife in the sheath, by contacting the flat contact ground (5) for charging at the front lower portion of the knife handle and the bottom flat contact ground (5) at the front of the sheath charger.

The sheath charger 20 obtains a DC power supply from the AC power supply 23 through the rectifier 21 in a conventional manner and supplies the DC power for charging to the planar contact ground 5.

The present invention,

1. It is possible to easily cut the material by the reciprocating action of the blade back and forth using power, in this case, it is possible to minimize the unnecessary vibration (up, down, left and right) of the blade,

2. When not using forward and backward reciprocation of the blade, it can be used like a fixed blade type knife.

3. Knives to make it easier to secure and charge power for starting the motor.

Task 1 can be achieved by using a motor (2) and a power transmission (8) attached to the blade (1) and a rotary roller (7) connected thereto, which are operated by the rechargeable battery (3),

Task 2 can be achieved by the switch cover 10 attached to the pressing member 11 and the sliding groove formed in the handle 19,

Task 3 can be achieved by allowing the rechargeable battery 3 to be charged through the charging ground 5 formed in the lower front of the knife handle and the charging ground 5 at the bottom of the sheath charger.

1 is a perspective view of the inner knife

2 is a side view and a development view of a rotating roller having a closed spiral groove

3 is a side view, a bottom view, and a front view of the power transmission port.

4 is a side view of the blade, blade shaft and blade shaft support

5 is a side view of the switch cover with a pressing member

5-1 degrees is a switch cover closed, the blade is fixed (back view of 6-1 degrees)

5-2 degrees switch cover is open, the blade is not fixed (back view of 6-2 degrees)

6 is a top perspective view of the knife handle and the switch cover pressing member of FIG. 5 attached thereto.

6-1 degrees shows the switch cover closed,

6-2 degrees with the switch cover open and the switch exposed

7 is a side view of the sheath charger and a side view of the knife inserted and mounted therein

8 is a front view of the knife handle portion

9 is a front view of the sheath charger

* Explanation of symbols for main parts of the drawings

1: blade 2: motor

3: rechargeable battery 4: wires

5: Ground contact for charging 6: Motor start switch

7: rotary roller 8: power transmission port

9: rotating wheel 10: switch cover

11 pressure member 12 rubber packing

13: closed spiral groove 14: power transmission shaft

15: blade axis 16: fixed support

17: fixing support mounting groove 18: friction member

19: knife handle 20: sheath charger

21: rectifier for charger 22: lamp

23: power cord 24: blade shaft insertion hole

25: blade insertion hole

Referring to the preferred embodiment of the present invention in detail as follows.

1 is a side perspective view of a knife equipped with a rechargeable battery and a motor.

A rechargeable battery 3 is mounted to the rear of the knife handle, which is connected to the charging ground 5 by an electric wire 4. It is connected from the battery to the motor start switch 6 by a wire 4, which is also connected to the motor by a wire. The rotary roller 7 having the closed spiral groove 13 is integrally attached to the motor. The rotating wheel 9 of the power transmission hole 8 fixedly attached to the blade 1 is inserted into the closed spiral groove 13 of the rotary roller. When the roller rotates, the blade according to the position of the closed spiral groove 13 is rotated. Allow 1) to reciprocate back and forth. The motor start switch 6 is located above the knife handle, and the cover 10 covering the switch is positioned with the pressing member 11 attached to the lower part. The blade shaft 15 is inserted into the elastic rubber packing 12 to be waterproof.

2 is a view in which a closed spiral groove 13 is formed on a surface of the rotary roller 7 which is integrally attached to the motor 2.

3 is a side view, a bottom view and a front view of the power transmission port 8 fixedly attached to the blade 1. The upper portion of the power transmission hole is fixedly attached to the blade, the rotary wheel 9 is designed to be inserted and rotated to the left and right of the shaft 14, respectively, the closed spiral groove 13 of the roller when the rotary roller 7 is rotated It acts to move the fixed and fixed blade back and forth according to the position of the closed spiral groove in the interior. At this time, the rotation wheel 9 serves to eliminate friction between the wall of the closed spiral groove 13 of the roller and the power transmission shaft 14, the friction noise that may occur in the process of converting the rotational movement to a linear reciprocating motion And reduce vibration.

4 is about the shape of the blade, consisting of a blade (1) for cutting and a shaft (15) supporting it. The shaft is provided with a groove for mounting the power transmission port 8, and a groove 17 for mounting the fixed support 16 of the blade shaft. The fixed support mounting groove 17 forms a groove having a length equal to the reciprocating distance of the blade, so that the fixed support can be fixedly positioned without interfering with the blade axis even during the reciprocating motion of the blade.

The fixed support 16 is inserted into the fixed support mounting groove 17 at a right angle and fixedly attached to the knife handle. It is to prevent the blade from falling off the handle beyond the range of the reciprocating movement.

In addition, the blade shaft 15 can be long enough to be inserted into the knife handle 19 sufficiently close to the deadline state as shown in FIG. 6, thereby minimizing unnecessary vibration (left, right, up and down) that may occur during the reciprocating movement. It was.

5 is related to the switch cover 10 located on the upper portion of the knife handle, the friction member 18 is installed on the upper portion so that only the thumb can be opened and closed back and forth.

At the bottom, a pressing member 11 having a sliding surface was attached to the left and right elasticity.

The operation mode is such that when the cover is pushed forward (Fig. 5-1), the pressing member 11 pressed by the narrowed handle wall presses the shaft of the blade from side to side to fix the blade. Thereby, the effect similar to the case of using the knife with a fixed blade can be obtained.

When the cover is pushed back (FIG. 5-2), the pressing member 11 is positioned to be spaced apart from the blade so that the forward and backward movement of the blade by the motor power is free.

6 is a perspective view showing the shape of the knife handle 19 and the switch cover 10 of FIG. 5 attached thereto, and FIG. 6-1 is a closed state with the cover pushed forward, and FIG. The switch 6 is exposed. In case of opening of Fig. 6-2, the pressing member is spaced apart from the blade axis of the center part, and in case of closing of Fig. 6-1, the pressing member is in close contact with the blade axis of the center part and the blade axis is fixed to the knife handle. It seems to be possible.

7 is a side view of the sheath charger and a side view of the knife inserted and mounted therein.

The rectifier 21 receives power from the power plug 23 and charges the rechargeable battery 3 of the knife through the charging ground. The lamp 22 is a lamp indicating the degree of charge of the rechargeable battery so as to be displayed in blue when the charging is completed, and red during charging using conventional techniques.

The shape of the charger is designed so that when the knife is inserted, the edge of the knife is pressed down by the shape of the sheath and the weight of the knife, so that both grounds for the charging are in close contact with each other. While it does not, the effect of removing the moisture of the blade.

8 shows the attachment position of the elastic waterproof rubber packing 12, the blade shaft inserting hole 24, and the charging ground 5 in the front view of the knife handle portion. The outside shape of the handle is represented by a rectangle for convenience of drawing.

9 shows the blade inserter 25, the charging ground 5, the lamp 22 and the power cord 23 in a front view of the sheath charger.

The present invention has the effect of making it possible to easily cut the material by generating a reciprocating action on the blade by using a motor on the cutting knife, and at the same time converting the rotational movement of the motor to the reciprocating action of the blade and the blade Emphasis is placed on minimizing the movement of the blades in the reciprocating process and minimizing the vibrations that occur in the reciprocating process.

In addition, when the electric power is not used, the blade can be fixed to the knife handle, so that it can be used like a conventional fixed blade without moving the blade.

And, if the knife is plugged into the sheath charger while not using the knife, there is an effect of making it easy to charge by the automatic charging through the ground.

Claims (8)

Rotating roller (7) integrally attached to the motor (2) connected to the rechargeable battery (3) and formed with a closed spiral groove (13), and a power transmission hole fixedly attached to the blade shaft and equipped with a rotating wheel (9) 8) combined with the electric knife attached to the device to switch the rotational movement of the motor to the reciprocating motion of the blade back and forth, and the pressing member 11 is attached to the device to fix the blade by pressing the blade shaft, the knife can be inserted Sheath charger 20 having an insertion hole 25 and equipped with a rectifier 21, a flat contact ground for charging 5, a charging lamp 22, and a power cord 23. The electric knife of claim 1, wherein the power for the forward and backward reciprocation of the blade 1 is obtained from the motor 2, and the power of the motor is obtained from the rechargeable battery 3. The rotating roller (7) integrally attached to the motor (2) and the closed spiral groove (13) is formed in claim 1, the upper part is fixedly attached to the blade shaft, and the lower wheel (14) is provided with the rotating wheel (9). Electric knife equipped with a device that is installed, the wheel is inserted into the closed spiral groove of the rotary roller (7) to convert the rotational movement of the motor into a linear reciprocating motion of the blade by the combination of the rotating power transmission (8) The electric knife according to claim 1, wherein the friction cover 18 is formed on the upper surface and the switch cover 10 elastically attached to the handle of the knife is provided with a pressing member 11 having a sliding surface for pressing the blade shaft below. . The electric knife according to claim 1, wherein a handle (19) having a space different in width from the sliding surface so as to generate and dissipate the pressing force as the pressing member (11) moves. The electric knife according to claim 1, wherein the knife has a planar contact ground (5) for charging connected to the rechargeable battery (3). According to claim 1, the blade can be inserted into the blade insertion hole 25 to insert the knife, the rectifier 21, the charge contact flat ground (5), the charging lamp 22, the power cord (23) With sheath charger (20). 8. An electric knife according to any of claims 1 to 6 and 7 having a charging planar contact ground (5) connected to the charging battery (3) at the knife handle, and having a charging planar contact ground (5). By inserting into the blade insertion opening 25 of the sheath charger 20, the flat contact ground 5 for charge of the sheath charger and the flat contact ground 5 for charge of the electric knife are brought into contact with each other. How to charge