JPS5927896Y2 - electric scissors - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of electric scissors operated by power.

Conventional electric scissors of this type perform the cutting operation by operating the push button or lever of a switch attached to the scissors body by moving the fingers of the hand holding the scissors. Depending on the position, etc., problems may occur in the mounting position of the switch and the condition of the hand gripping the scissors, making it difficult to operate in many cases.Furthermore, if the switch is operated frequently, the operating fingers may become fatigued. This invention was made to eliminate these drawbacks. By slightly moving the grip part of the scissors using the grip strength of the hand holding the scissors, a switch attached to the scissors is activated and power is generated. Since the cutting operation is carried out by the transmission of the information, there is no need to perform any special switch operations using fingers or the like, making the work easier and reducing fatigue.

In addition, two switches are installed as a pair at corresponding positions on the pair of grips of the scissors, and by forming an electric circuit with both switches inserted in series, it is possible to prevent danger due to accidental erroneous operation of one of the grips. It is also effective.

An embodiment of this invention shown in the figure will be described below.

In the figure, 1 is a scissor blade part 1 pivotally connected to a pin 11.
2, 13, a mechanism part 14 that opens and closes the blade parts 11, 12 to perform a cutting operation, and a casing 15;
2a is pivotally mounted, has switch operation protrusions 23.24, and gripping portions 21b and 22b for gripping the scissor body.
3 is a torsion spring for keeping the handle 2 open at all times and returning it to its original position after operation; 4 is a pair of handles consisting of fixed contacts 41a, 42a and movable contacts 41b, 42b; It is attached to the casing 15 of the main body 1, and the handle 2
The handle 2 is kept in the OFF state by the protrusions 23 and 24 of the handle 2.
A pair of scissor operation switches that turn ON and generate power by the operation of , 5 is an electric wire that transmits the signal of switch 4 to the drive source, 6 is a drive source that provides power to the scissors body, 7 is drive source 6 This is a wire for transmitting the power to the scissors body 1.

Next, the operation of this embodiment will be explained.

In use, gripping parts 21b and 22b of handle 2 are gripped, an object to be cut is applied to scissor blade parts 11 and 12, and gripping force is applied to handle 2.

The handle 2 moves in the closing direction while resisting the twisting flap 3, the protrusions 23.24 also move following this, and the movable contacts 41b, 42b of the switch 4 move towards the fixed contacts 41a, 42.
When it comes into contact with a, the switch turns on.

When the switch 4 is turned on, the drive source 6 is activated via the electric wire 5, and the power is transmitted via the wire 7 to the mechanical part 14 that opens and closes the scissors 1, thereby cutting the object.

After cutting, when the grip of the hand holding the scissors is relaxed, the handle 2 returns to its original position due to the torsion spring 3, and the protrusion 23
, 24 presses the movable contacts 41b and 42b of the switch 4,
The switch is turned off, the drive source is deenergized, and the scissors stop operating.

As described above, according to this invention, there is a pair of handles attached to the electric scissors main body, a first switch that is opened and closed by one of the pair of handles, and a first switch that is connected in series with the first switch. , a second switch that is opened and closed by the other of the pair of handles, and the first switch is moved by displacing both of the pair of handles in a direction in which they approach
Since the scissors are operated by closing both the first switch and the second switch, the switch can be operated by slightly moving both of the gripped scissors, making the work easier and eliminating finger fatigue. Not only does it have the effect of allowing you to move both handles inward, but because a pair of switches in series are closed, it is possible to prevent the scissors from moving if one of the handles moves, such as when the scissors are dropped on the floor. Even if it is, the vehicle will not be driven unless the other handle is moved, which has the effect of significantly improving safety.

[Brief explanation of the drawing]

The figure is a plan view showing an embodiment of this invention. In addition, 1 is a scissors main body, 2 is a handle, and 4 is a switch.

Claims (1)

[Scope of utility model registration request] a pair of handles attached to the electric scissors body; a first switch that is opened and closed by one of the pair of handles;
A second switch is connected in series with the first switch and is opened and closed by the other of the pair of handles, and the second switch is configured to displace both of the handles in a direction to approach the first switch.
Electric scissors characterized by comprising a member that operates the scissors by closing both the switch and the second switch.