JPS597473B2 - Kaitenshiki Denki Razor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a rotary electric razor, and an object of the present invention is to change the cutting power of the razor by changing the moment of inertia of the inner cutter base of the rotary electric razor.
Generally, a rotary electric razor is equipped with a plurality of inner blades on an inner blade stand connected to the rotating shaft of an electric motor, and the inner blades are brought into contact with the inner surface of an outer blade equipped with a plurality of hair introduction holes. It rotates while moving.

However, when the beard is thick, i.e., when a thick and hard beard is inserted, the inner blade is subjected to a large amount of resistance, so the inner cutter base must be cut. There were cases where the rotational energy was suddenly lost and the inner cutter stand stopped rotating.

The present invention has been made in view of these facts, and provides a structure that adjusts the moment of inertia of the inner cutter base depending on the usage situation, such as when the beard is thick or thin.

Hereinafter, the present invention will be explained based on the drawings of the embodiments.

FIG. 1 is a partially cutaway sectional view showing the internal structure of the rotary electric razor of the present invention, and FIG. 2 is a perspective view showing the external appearance.

In the figure, reference numeral 1 denotes a main body of a rotary electric razor, and an inner cutter stand 3 is connected to a rotating shaft 2a of an electric motor 2 housed in its inner cavity.

A plurality of inner cutters 4 are supported upwardly by push-up springs (not shown) on the inner cutter base 3, and the blade surfaces of the inner cutters 4 are pressed against the inner surface of the outer cutter 8.

Reference numeral 5 denotes an adjustment plate, which is configured to be detachably attached to the back side of the inner cutter stand 3.

The adjustment plate 5 is formed into a disk shape of, for example, synthetic resin, and
The blade is inserted through the central shaft insertion hole 5a, moves vertically and rotates together with the inner cutter stand 3, and the blade is configured to be able to rotate separately from the inner cutter stand 3.

The connection to or separation from the inner cutter base 3 can be performed from the outside of the main body 1 by means of an operation button 6 mounted on the main body 1 so as to be freely movable in the vertical direction.

The outer periphery of the rotating shaft 2a is equipped with a holding protrusion 2b that presses against the inner surface of the shaft insertion hole 5a of the adjusting plate 5, so that the adjusting plate 5 can be integrally attached to or removed from the outer periphery of the rotating shaft 2a. I have to.

The adjustment plate 5 may be connected to or separated from the inner cutter base 3 by operating from the outside of the main body 1 using an operation button 6 mounted on the main body 1 so as to be movable in the vertical force direction.

Now, when shaving a thick beard, slide the operation button 6 upward to attach the adjustment plate 5 to the inner cutter base 3.

The inner cutter stand 3 weighs C including the adjustment plate 5, and its moment of inertia increases.

Therefore, even if a thick hair is inserted, the rotational energy of the inner cutter stand 3 is not significantly reduced due to the cutting resistance, so the inner cutter stand 3 continues to rotate at an average rate.

In addition, if the beard is thin, if the adjusting plate 5 is removed from the inner cutter stand 3, the inner cutter stand 3 will rotate due to the moment of inertia due to its own weight, so there is no need to unnecessarily drain the battery 7. .

As described above, the rotary electric razor of the present invention is configured such that the adjustment plate that changes the moment of inertia of the inner cutter base can be attached to the inner cutter base in a detachable manner, so that it can be used when shaving thick or thin beards. Since the user's request can be met, the sharpness of the razor can be maintained at an average level.

It should be noted that, as in the above-described embodiment, the adjustment plate can be attached to and removed from the inner cutter stand from the outside of the main body (this has the effect of making the operation easier).

[Brief explanation of drawings]

FIG. 1 is a partially cutaway sectional view showing the internal structure of the rotary electric razor of the present invention, and FIG. 2 is a perspective view showing the external appearance. DESCRIPTION OF SYMBOLS 1... Main body, 2... Electric motor, 2a... Rotating shaft, 2b... Holding protrusion, 3... Inner cutter stand, 4... Inner blade, 5... Adjustment plate, 5a ...Shaft insertion hole, 6...Operation button, 7...Battery.

Claims (1)

[Claims] 1. A rotary electric razor, characterized in that an adjustment plate is detachably attached to an inner cutter stand connected to the rotating shaft of an electric motor, so that the moment of inertia of the inner cutter stand can be adjusted.