JPS59135088A - Outer blade of reciprocal type 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] [Technical Field] The present invention is formed by fully perforating a large number of sink introduction holes in an outer cutter plate formed of a thin plate, and is formed in a housing along the outer periphery of an inner cutter that moves reciprocatingly. The present invention relates to an outer blade of a reciprocating electric shaver that is fixed and inserted into a hair introduction hole and shaves hair between the inner blade and the inner blade. As shown in JP-A No. 50-127762 shown in Fig. 1, the outer cutter has a sink introduction hole (2) formed in the shape of a long hole whose long axis direction L-L corresponds to the reciprocating direction of the inner cutter. Some are provided so as to be inclined at a predetermined angle with respect to the direction x-x. When introducing whiskers into such sink introduction holes (2), as shown in Figure 2,
The inclination angle of the long axis direction L-L with respect to the direction Y-Y in which the outer cutter (5) moves along the skin, which is a direction perpendicular to the reciprocating direction x-x of the inner cutter, is the so-called swivel direction. It is known that the larger the cow knee angle θ, the easier it is to introduce long whiskers. However, when the s+knee angle 0 becomes large, the periphery of the sink introduction hole (2) and the inner cutter (3
) becomes large, and depending on the position where the beard is introduced into the beard introduction hole (2), the sink mark (l) may not be shaved immediately and the sink mark (11) may become large. Beard introduction hole (2)
It happens that people are forced into the corners of the forest and are shaved there. In this case, since the sink mark (II) is pulled from the skin, shaving at 11+' causes pain and makes shaving uncomfortable.

[Object of the Invention] The present invention has been made to solve the above-mentioned problems, and its main purpose is to enable the beard to be shaved immediately without being pulled in the sink introduction hole. The purpose is to improve the comfort of shaving, and the other objective is to increase the adoption rate of beards. In the present invention, the sink introduction hole is formed in the shape of a long hole, and its long axis direction is relative to the reciprocating direction of the inner blade. In addition to having a predetermined angle of inclination, the periphery of each hair introduction hole along the long axis direction is formed in a sawtooth shape with a plurality of recesses, so that the hair can be captured in the recesses and removed using the inner blade. An outer blade of a reciprocating electric shaver having a shaving structure is disclosed.

Embodiments of the present invention will be described below based on the drawings. The outer blade of the reciprocating electric shaver according to the present invention basically has a large number of hair introduction holes (
2) An outer cutter fixed to a housing (not shown) along the outer periphery of the inner cutter (3) which is formed by making all the holes, and the sink introduction holes (2) are each long. A right introduction hole (2a) is formed in a hole shape, and its long axis direction L-L is inclined upward to the right with respect to the reciprocating direction of the inner cutter (3), and a left introduction hole (2b) is inclined upward to the left. are arranged alternately, and the periphery of each whisker introduction hole (2) along the longitudinal direction LL is formed in a sawtooth shape with a plurality of recesses (4). As shown in FIG. 4, the outer cutter plate +1 is formed of a thin plate of a hard and elastic material such as a metal plate. This outer cutter plate tl+ has many sink introduction holes (
2) is drilled, and a housing J/j is installed at the periphery.
A mounting hole (10) is formed for fixing to a (not shown). The outer cutter plate (1) is housed in a housing and the inner cutter (3) is driven to reciprocate during Tanabata festivals, etc.
), and is usually arranged in a roughly semi-cylindrical shape. The barb introduction hole (2) has a long hole or parallelogram shape, and its long axis direction L-L or the reciprocating direction of the inner blade (3) X-X
It is arranged so that it is tilted against the ground. Sotobazuji t-
The direction parallel to the surface of +11 and orthogonal to the reciprocating direction x-x of the inner blade (3), that is, the direction in which the outer blade rate +11 moves when shaving '1r-Y (hereinafter abbreviated as the moving direction) ) and the long axis direction LL, the so-called skinny angle θ, is set in the range of 30 to 60 degrees. As a result, when the outer cutting rate +11 comes into contact with the sink mark (11), the sink mark (llll) is efficiently introduced into the sink introducer L (2), and even a long sink mark (11) can be easily captured. The sink introduction reed (2) is made up of two types of forces: a right introduction hole (2a) inclined to the right and a left introduction hole (2b) inclined to the left, based on the moving direction Y-Yk, and the reciprocating direction x- X
, the entire pattern is formed in which the whisker introduction holes (2) with the same inclination are lined up in the machining movement direction Y-Y, and the left and right introduction holes (2a) (2b) are arranged alternately in the long axis direction. are doing. Here, adjacent left and right introduction holes (2aH2
The left and right introduction holes (2aH2b) are formed so that the substantially rhombic patterns formed by each pair of b) have four-fold rotational symmetry. By the way, as shown in FIG. 5, the left and right peripheral edges of each whisker introduction hole (2) along the long axis direction L-L, that is, the cutting edges, are formed in a sawtooth shape with a plurality of recesses (4). has been done. The recess (4) is recessed along the reciprocating direction x-x of the inner cutter (3), and its radius of curvature is 0.
．． Set to 06 U or less. The sink mark (11) introduced into the sink mark introducing hole (2) thus formed is driven into the recess (4) and shaved between it and the inner cutter (3). In addition, in FIG. 5, the skinny angle θ'i 3
7.5 degrees is shown for the sink introduction hole (2), and FIG. 6 shows the case where the skinny angle θ is 54 degrees.

[Effects of the Invention] As described above, the present invention has a serrated edge along the long axis direction of the porous sink introduction hole, so even if the skinny angle is increased, the whiskers can be prevented. The beard can be shaved by driving it into the recess, and the beard does not slide along the periphery of the beard introduction hole.As a result, the beard has the advantage of being able to shave comfortably without being pulled while shaving. It is something. In addition, since the whiskers do not move within the sink introduction hole, a large skinny angle can be set, and the left and right introduction holes with different skinny angles are arranged alternately, increasing the rate of introduction of whiskers into the sink introduction hole and making them longer. This has the advantage that even a long beard can be easily shaved.

[Brief explanation of the drawing]

Fig. 1 is a partial front view showing a conventional example, Fig. 2 is a cradle showing the relationship between whisker length and sinkage introduction rate, and Fig. 3 (
a) and (b) are a schematic front view and a schematic cross-sectional view showing the same problems as above, respectively, FIG. 4 is a front view showing an embodiment of the present invention, and FIGS. 5 and 6 are set at different skinny angles. It is a partial front view of the same as above. illumination outer blade plate, (2) sinkage introduction hole, (2a)
is the right introduction hole, (2b) TI'i left introduction hole, (3) is the inner cutter, and (4) is the recess. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] +1) An outer cutter made of a thin plate with a large number of sink introduction holes drilled in a companion outer cutter plate, and fixed to the housing along the outer periphery of a reciprocating inner cutter, which includes sink introduction holes. are each formed in the shape of a long hole, and the right introduction hole whose long axis direction is inclined upward to the right with respect to the reciprocating direction of the inner cutter and the left introduction hole which is inclined upward to the left are arranged alternately. The outer blade of a reciprocating electric shaver is characterized in that the periphery along the long axis direction of the introduction hole is formed in a sawtooth shape with a plurality of recesses.