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Rotary electric shaver and inner cutter therefor

An electric shaver, rotary technology, applied in metal processing and other directions, can solve problems such as inconvenient cleaning, and achieve the effects of easy cleaning, improved durability, and reduced noise

Inactive Publication Date: 2008-06-25
IZUMI PROD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem that produces in this case is, beard crumbs and skin grease are easy to adhere to on the small blade 34, also inconvenience cleaning.

Method used

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  • Rotary electric shaver and inner cutter therefor
  • Rotary electric shaver and inner cutter therefor
  • Rotary electric shaver and inner cutter therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1 is an external perspective view of an electric shaver according to an embodiment of the present invention, FIG. 2 is a side sectional view showing an assembled state of an inner blade and an outer blade, and FIG. 3 is a perspective view of an inner blade used in the electric shaver. , Fig. 4 is an enlarged perspective view of a part (part P in Fig. 3 ) of the same inner blade, and Fig. 5 is a perspective view (A) of a thin-walled cross section showing the middle part of the same small blade and Vb-Vb showing it Sectional view of the wire cross-sectional shape (B). The inner blade 70 of this embodiment is used instead of the combination of the inner blade 10 and the outer blade 12 shown in FIG. 13 described above. Therefore, the same reference numerals are used for the same parts as those in FIG. 13 , and description thereof will be omitted.

[0052] In FIG. 1, 50 is a main body part, and 52 is a head part. The head 52 can be attached and detached from the upper part...

Embodiment 2

[0059] Fig. 6 is a side sectional view showing an assembled state of an inner blade and an outer blade as another embodiment; Fig. 7 is a side sectional view of a part of the inner blade. The small blades 80 (80A, 80B) of this embodiment are provided with a thin cross-sectional portion 82 on the small blade 34 of the conventional inner blade 10 shown in FIGS. 9 to 13 described above. That is, the inner blade body portion 84 is fixed to the boss portion 86, and the middle portion of the small blade 80 folded from the metal plate of the inner blade body portion 84 becomes thinner in the radial direction. In addition, in FIGS. 6 and 7 , the outer blade 12 is the same as the outer blade shown in FIG. 13 , so the same reference numerals are used for the same parts, and the description thereof will not be repeated.

Embodiment 3

[0061] Fig. 8 is a perspective view showing another example of the small blade. In the small blade 90 of this embodiment, an opening 92 that opens toward the circumferential direction and penetrates in the circumferential direction is formed in the upper portion. In addition, the middle portion below the opening 92 is a thin-walled cross-sectional portion 94 processed to be thinner in the radial direction.

[0062] According to Embodiment 3, air flows through the opening 92 when the inner blade 90 rotates. As a result, the projected area with respect to the rotation direction is further reduced including the thin-walled cross-sectional portion 94 , and air resistance is reduced, thereby promoting smooth flow of air. As a result, beard shavings are less likely to adhere to the small blade 90, and cleaning becomes easy.

[0063] In the present invention, the thin-walled cross-sectional portion formed in the middle portion of the small blade may be twisted into a propeller-like...

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PUM

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Abstract

The invention provides a rotary electric shaver, without increasing the pushing force of the small blade on the track, the closeness between the two can be improved, the sharpness of shaving can be improved, the durability can be enhanced, and the increase of noise can be prevented. In addition, beard debris and grease are less likely to adhere, and cleaning is also easy. The inner blade (56) includes: a raised portion (60), which is engaged on the rotating shaft; a small blade (70), whose lower part is fixed on the raised portion (60), stands up from the lower part, and the upper part and the outer blade (12 ) is in sliding contact with the lower surface. A thin-walled section (78) is provided in the middle part of the small blade (70), and the size (a) of the thin-walled section (78) in the radial direction of the rotating shaft is smaller than that of the cutting edge (74) in the radial direction. Dimension (c).

Description

technical field [0001] The present invention relates to a rotary electric shaver and an inner blade therefor, said electric shaver comprising: a generally disc-shaped outer blade having a plurality of small openings opening into an upper surface; an inner blade , to rotate in sliding contact with the inner surface of the outer blade. Background technique [0002] There is known a rotary electric shaver in which an annular track (groove) is formed on the inner surface of a generally disc-shaped outer blade, and a plurality of small openings ( For example, the slit) rotates the inner blade while bringing the blade (small blade) provided on the inner blade into sliding contact with the track of the outer blade. Such a rotary electric shaver is shown, for example, in Japanese Unexamined Patent Publication No. 06-238070. [0003] (Patent Document 1) JP-A-06-238070 [0004] As disclosed in this Patent Document 1, in the conventional inner blade, a metal inner blade body portion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26B19/14B26B19/28
CPCB26B19/143B26B19/141B26B19/145
Inventor 冈部正树
Owner IZUMI PROD CO