JPS6117720Y2 - - Google Patents

Description

[Detailed description of the invention] This design has a simple structure, and when removing the outer cutter for cleaning etc. from the inner cutter provided on the inner cutter stand, the outer cutter does not get caught on the edge of the inner cutter, making it easy to remove. The present invention relates to an inner blade of an electric razor that can be removed.

Conventionally, in electric razors in which the inner blade reciprocates with respect to the outer blade to shave beards, etc., the inner blade is fixed to the inner blade stand at right angles to its longitudinal direction at appropriate intervals. The outer side of the blade slightly protrudes outward from the inner cutter stand, and therefore there is a step between the edge of the inner cutter and the inner cutter stand.

An outer cutter is provided to cover the inner cutter, and the reciprocating movement of the inner cutter shaves hair, etc. However, when the outer cutter is removed from the inner cutter for repairs or cleaning, etc. The inner side of the outer cutter gets caught on the edge of the inner cutter, causing the inner cutter to come off along with the stand and fall off, or if the inner cutter stand cannot be easily removed, the outer cutter may be forcibly pulled and deformed.

This proposal was devised in view of the above points.According to this proposal, protrusions are provided at least at the four corners of the edge portions on both sides of the inner cutter base of the inner cutter, and the height of the protrusions is set to the height of the edge portion. The height of the outer cutter is equal to or greater than that, and the surface is formed smoothly, so that when the outer cutter is removed for repair or other purposes, the inner surface of the outer cutter comes into contact with the outer surface of the protrusion, and the edge of the inner cutter It can be removed without engaging the outer cutter, and can prevent damage to both the inner and outer cutters when removing the outer cutter.

An embodiment of the present invention will be described below with reference to the drawings.
The inner cutter base 3 is connected to the electric razor body 1 by the shaft 2.
is supported. A large number of inner cutters 4 are fixed to this inner cutter stand at right angles to its longitudinal direction and at appropriate intervals. (See FIG. 2) This inner cutter projects outward in the radial direction with respect to the inner cutter base 3, and has edge portions 5, 6 formed on both sides thereof.

Projections 7, 8, 10 (only three are shown) are provided at the four corners of the stepped portion of the inner cutter base 3 formed below both edge portions 5, 6. It is preferable that the amount of protrusion of each protrusion is equal to or greater than the height of the inner cutter relative to the inner cutter base, and it is desirable that the surface of the protrusion be formed smoothly.

Although the protrusions are provided at the four corners of the inner cutter base 3 as described above, the present invention is not limited to this, and it goes without saying that continuous plate-shaped protrusions may be provided along the opposing steps. Nor. Reference numeral 11 denotes an outer cutter that covers the inner cutter 4, and its lower edge support parts 14 and 15 are removably provided with respect to pedestals 12 and 13 on the main body 1. Reference numeral 16 denotes an outer cutter case provided on the outer side of the outer cutter, and both lower end portions 17 and 18 of the outer cutter case are fitted into the main body 1.

However, when the outer cutter case 16 is removed and the electric motor (not shown) rotates, the inner cutter stand 3 is rotated by the rotation of the shaft 2.
slides back and forth with respect to the outer cutter 4 to perform the desired shaving action.

When the shaving action is finished and the outer blade 11 is removed for cleaning or repair of various parts, the inner side of the outer blade is first guided by the outer surfaces of the protrusions 7, 8, and 10 provided on the inner blade stand 3. Glide. However, according to the present invention, the difference in protrusion between the protrusions is equal to or greater than the height of the inner cutter 4, so the inner side of the outer cutter is pulled toward the lower edge portions 5 and 6 of the inner cutter 4. The outer cutter 11 can be smoothly removed by sliding without getting stuck. Furthermore, since the outer surface of each protrusion is formed smoothly, the outer cutter can be removed even more smoothly.

As described above, when removing the outer blade with an electric razor for cleaning etc., the outer blade can be removed without getting caught on the lower edge of the inner blade. It is also convenient because it does not cause any damage.

[Brief explanation of the drawing]

FIG. 1 is a schematic vertical sectional view showing a part of an electric razor having a main guide blade, FIG. 2 is a perspective view of the main guide blade, and FIG. 3 is a front view thereof. 3...Inner cutter base, 4...Blade, 7, 8, 10...Protrusion.

Claims (1)

[Scope of utility model registration request] An inner cutter stand, a number of blades fixed to this stand, and at least four corners of the edges of the blades on both sides relative to the inner cutter stand, the height being equal to or equal to the height of the inner cutter relative to the inner cutter stand. The inner blade of an electric razor has a height greater than that height and has a smooth outer surface with protrusions.