JPS5812672A - Outer blade body of electric razor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to an outer blade of an electric shaver.

In order to facilitate the introduction of bristles into the blade holes (slits) of the net-like outer cutter, a concave bent strip 2°3 is formed on the outer cutter 1, which was conventionally K as shown in Figures 1 and 2. , three-dimensional slits (blade holes) 4 to 6 that are continuous with the surface side of the outer cutter are formed on the side surfaces of each bent strip 2, 3 and on the outer circumferential surface of the outer cutter. A comb 8 is provided on the outer cutter frame 7, a comb groove 9 facing the three-dimensional slit 6 is formed by a comb rib 9a, and the inner side of the outer cutter frame 7 is supported by a comb dowel 9El. Strip 2
A skin contact prevention plate 10 is provided. In the figure, 1a is the blade hole,
11 is a comb knurl, 12 is an inner cutter frame, 13 is an inner cutter with a notch 13a formed corresponding to the strip 3, 14 is an inner cutter support spring, 15 is an inner cutter frame holder, and the motor shaft ( The inner cutter frame 12 (not shown) is rotated by the rotation of the motor shaft, and the inner cutter 13 slides while being in elastic contact with the back surface of the outer cutter 1. It is severed in cooperation with 13.

However, the controversial outer blade body also simply has a bent striation 2°3f:
If only the whiskers are provided, the direction of the whiskers will not be aligned, so it will be difficult for them to invade the three-dimensional slits 4 and 5, and if the whiskers enter from the bottom of the three-dimensional slits 4.5, the inner blade 13 will not cut and will remain shaved. A friend who has the disadvantage of causing problems. Also the first
The one in the picture has a hair introduction comb on the outer periphery of the outer blade 1, so
Although it is relatively good in that the hair can be introduced after shaping, it has the disadvantage that the hair introduction operation is troublesome depending on the part of the beard. This prevents the skin from digging into the large-area bent strip 2, resulting in better skin contact, but it has the disadvantage that the peripheral end surface of the skin contact prevention plate 10 approaches the three-dimensional slit, which prevents the introduction of hair. An object of the present invention is to provide an outer blade for an electric shaver that can improve the texture of the skin and further promote the introduction of hair.

# An example of this invention! This is shown in Figures 3 to 9. That is, the blade of this electric shaver has a circular concave bent strip 2' formed in the center of the outer cutter 1', and a ring-shaped concave bent strip 3' formed in the middle of the outer cutter 1'. , each bent strip 2
Three-dimensional cutting holes (Srin) 4', 5' that are continuous with the surface of the outer cutter 1' are formed on the side surfaces of the + and 3+, and a comb (<shi member) 16. The comb 16 to which the comb 17 is attached is in the form of a disk, with a fixing pin 18 protruding from the lower surface of the hanging center, and the comb 16 attached to the bottom plate of the bent strip 2' is heat-sealed through the mounting hole 19. , Separately stop plate 20
Press fit into the T-fixing bottle 18 and fix. Further, this comb 16 has a bottomed comb groove 21 that opens only in the radial and upward directions on the upper edge corner of the circumferential surface, and by forming the groove 21, a comb rib 22 is formed. #121 when attaching to the bent strip 2'.
The radial opening and the three-dimensional blade hole 4' face each other. On the other hand, the comb 171d attached to the bent strip 3'
l) A plurality of fixing pins 23 are suspended from the lower surface in a pufferfish shape, and the fixing pins 23 are passed through the mounting holes 24 formed at the bottom of the bent strip 3', and heat-sealed or a stop plate 25 is attached to the fixing pins 23. The comb 17 is fixed by press-fitting, and a bottomed comb groove 26 and a comb rib 27 are formed at upper corners of the inner and outer peripheries of the comb 17 in the same manner as described above. Other parts that are the same as those in FIG. 1 are given the same reference numerals and explanations will be omitted.

6 to 9 show the operating states of the comb.

That is, when the outer cutter 1' is pressed against the skin P, if the comb 16 is strong, the skin P enters the p-bent striations due to its elasticity as shown in FIG. The skin P digs into the comb 4'a, making the feel of the skin worse and, in some cases, causing damage by the inner cutter 131. However, the comb 16 prevents the skin P from entering, so the skin feels better against the skin. Moreover, unlike the skin contact prevention plate 10 shown in FIG. When the comb groove 21 is located at the tip of the hair P, the hair falls into the comb groove 21, gets stuck, first hits the back wall 21a of the comb groove 21, moves downward, and then moves toward the bottomed part 21b to trap and style the hair. Due to the appropriate rigidity and elasticity of the natural hair, the natural hair is captured along the bottomed portion 21b in the direction of the inner cutter 13 in the three-dimensional cutter hole 4', and is cut by the inner cutter.

That is, the depth of the bottom portion 21b is set at a position where the inner blade 13 cuts the hair that has entered the blade hole 4' along the bottom portion 21b. In this case, the bottom 2 is attached to the comb groove 21 as shown in FIG.
Without 1b, the shaved hair P1 would be on the back wall 21 of the comb groove 21.
Along a, the blade reaches the bottom of the bent strip 2' and enters the three-dimensional blade hole 4' from the bottom, making it difficult to be cut by the inner blade 13. The vicinity of the root of the bristles is introduced into the blade hole 4' while bending concavely between the upper end of the side wall 2]'a and the rib 11a of the outer blade 1', and the tips of the bristles are introduced to the outside. Blade rib 1'a
When the bristles escape from the restraint, they hit the bottom 21b of the comb groove 21 as shown in FIG. In this case as well, if there is no bottom portion 21b as shown in FIG. 9, the cutter will enter the bottom portion of the three-dimensional cutter hole 4' that does not contribute to the cutting of the inner cutter 13.

Incidentally, the sink mark introducing operation of the bent strip portion 3' is the same as described above, and therefore will be omitted.

As described above, the outer cutter body of the electric shaver of the present invention has a comb provided with a bottomed groove facing the three-dimensional cut hole in the bent strip, which improves skin contact. It can improve performance in terms of irritation and safety when cutting the skin, and has excellent hair trapping and hair conditioning effects regardless of the beard area, promoting the introduction of hair into the three-dimensional blade hole. It also has the effect of preventing sink marks from scattering and preventing deformation of the outer blade.

[Brief explanation of drawings]

(6) FIGS. 1 and 2 are cross-sectional views of the conventional example, and FIG. 3 is a cross-sectional view of the blade of an electric shaver to which an embodiment of the present invention is applied;
Fig. 4 is a plan view of the outer cutter, Fig. 5 is an exploded perspective view of the outer cutter, Fig. 6 is a sectional view of the outer cutter in contact with the skin, Fig. 7 is a sectional view with the comb removed, and Fig. 5 is a sectional view of the outer cutter. Figure 8 is a sectional view of the state in which the bristles are introduced, and Figure 9 is a sectional view of the case where the bottom of the comb groove is not present.
, 5'... three-dimensional blade hole, 16.17... comb, 2]
, 26... Comb groove (gouged groove), 22.27...
Comblip Figure 1 Figure 5 Figure 9

Claims (1)

[Claims] A net-like outer cutter, a concave bending stripe formed on the surface of the outer cutter to form a three-dimensional cutter hole continuous from the surface of the outer cutter to the side surface of the outer cutter, and this concave "4JJn [111° Outer blade body 0 of an electric shaver equipped with a hair introduction comb attached to the bottom and forming a bottomed groove that opens facing the three-dimensional blade hole and opens upward.