JPH0548149B2 - - Google Patents

Description

[Detailed description of the invention] 【Technical field】

The present invention includes a main blade consisting of an outer cutter provided with a large number of cutter holes and an inner cutter that slides on the inner surface of the outer cutter, and a trimmer blade that is formed of a fixed cutter and a movable cutter that slides into contact with the fixed cutter. This is related to the electric shaver that is provided.

[Background technology]

The main blade consisting of the outer cutter and inner cutter cuts the hair introduced through the cutter hole of the outer cutter between the inner cutter and the edge of the cutter hole of the outer cutter, and shaves the hair short. However, the drawback is that long hairs are less efficient at introducing into the blade hole. On the other hand, although trimmer blades are effective in cutting long hair, they have the disadvantage that they do not allow for a short shave. When cutting long hair for this purpose,
Good results can be obtained by first shaving with the trimmer blade, then finishing with the main blade. Here, as an electric shaver equipped with a main blade and a trimmer blade, for example, the one shown in FIG. 10 has already been provided. In the figure, 1 indicates a main blade consisting of an outer cutter 10 and an inner cutter 11, and 2 indicates a trimmer blade consisting of a fixed blade 20 and a movable blade 21. Since this electric shaver is equipped with a trimmer blade 2 and a main blade 1, it is possible to perform the above-mentioned rough shaving and finish shaving. Since the top of the outer cutter 10 and the cutting edge of the trimmer blade 2 are separated by a long distance K, since the top of the outer cutter 10 and the cutting edge of the trimmer blade 2 are separated from each other, the trimmer blade 2 is
When the main blade 1 is used to cut long hair H, the main blade 1 separates from the skin S. For this reason, a rough shave with the trimmer blade 2 is followed by a finish shave with the main blade 1. As shown in the figure, it was necessary to first perform a rough shave, then change the way the shave was applied to the skin S and perform a final shave. In other words, in conventional electric razors, the main purpose of the trimmer blade 2 was to cut sideburns.
For this reason, the idea of using the trimmer blade 2 as a pretreatment before cutting long hair with the main blade 1 was lacking.

[Purpose of the invention]

The present invention has been made in view of these points, and its purpose is to enable rough shaving using the trimmer blade and subsequent finishing shaving using the main blade to be performed as one continuous operation, and to
An object of the present invention is to provide an electric shaver that can perform this operation reliably.

[Disclosure of the invention]

Therefore, the present invention has a main blade formed of an outer cutter having a large number of cutter holes, an inner cutter that slides on the inner surface of the outer cutter, a fixed cutter, and a movable cutter that slides on the fixed cutter. In a reciprocating electric shaver, the outer cutter is held within an outer cutter frame formed as a rectangular frame, and trimmer blades are arranged on both sides of the outer cutter. A pair of trimmer blades are attached to the inner wall surface of the outer cutter frame together with a member for driving the movable blade in the blade, and a pair of trimmer blades are arranged between the inner wall surface of the outer cutter frame and the outer cutter, and one trimmer blade is attached to the inner wall surface of the outer cutter frame. The main blade and the trimmer blade are both located within the outer blade frame, so both blades can be placed close enough to each other, and the main blade and trimmer blade can be easily protruded. In addition, the trimmer blades are placed on both sides of the outer blade, so when you move the electric razor in either direction, you can get a rough shave with the trimmer blade and a finishing shave with the main blade. In addition to being able to do this continuously, one trimmer blade can be freely protruded,
The trimmer blade can be used alone without difficulty. The present invention will be described in detail below based on the illustrated embodiment of a reciprocating electric shaver.
As shown in FIGS. 2 and 3, an outer cutter 10 of the main cutter 1 and a pair of trimmer blades 2, 2 are attached to the upper end of the main body 5, which has a built-in motor (not shown), via a blade frame 4. Each trimmer blade 2 has a fixed blade 20, a movable blade 21, and a presser spring 2 that presses the movable blade 21 against the fixed blade 20, on the upper surface of a blade base 24 mounted on the inner wall surface of the blade frame 4.
3 in sequence and cover with the pressed cover 22, each of the above members 20, 21, 23 is attached to the blade base 2.
It consists of attaching to 4. The outer cutter 10 of the main cutter 1 is formed of a thin metal plate, and has a pair of locking holes 16 at each end, and is located inside the blade frame 4, which is formed as a rectangular frame. The blade frame 4 is mounted by locking a plurality of hooks 41, 41 protruding from the wall surface into each locking hole 16. As shown in FIGS. 4 and 5, the blade base 24 of the trimmer blade 2 has a pair of mounting pieces 25, 25 integrally projecting downward from both ends, and a trimmer drive element 26 in the center. In addition, a pair of connecting pieces 28 and a hook 29 are provided integrally and projecting downward from between each mounting piece 25 and the trimmer driver 26.
8 is a mounting groove 4 formed on the inner wall surface of the blade frame 4.
2 and 43, respectively, and the hook 29 is engaged with the click groove 44, thereby being attached to the inside of the blade frame 4. At this time, the holding cover 22 covers both sides of the outer cutter 10 so that only the center portion of the outer cutter 10 faces the upper opening of the blade frame 4. Further, the cutting edge of each trimmer blade 2 is oriented in a direction away from the main blade 1 and slightly upward. The attachment groove 42 in the blade frame 4 is formed between a rib 45 protruding from the blade frame 4 and the inner wall surface of the blade frame 4, and the attachment groove 43 is formed between a pair of ribs 46, 46 and the outer blade 10 is attached. A click groove 44 is formed on one surface of the rib 46. The trimmer driver 26 in the blade base 24 has a pair of thin elastic pieces 27, 27 relative to the blade base 24.
The lower end engages with an engagement pin 60 protruding from the driver 6 that reciprocates the inner cutter 11 of the main cutter 1, and penetrates the cutter base 24. The upper end that protrudes upward is the movable blade 21.
engage with. For this reason, when the driver 6 for reciprocating the inner cutter 11, which constitutes the main cutter 1 together with the outer cutter 10, performs reciprocating vibration, the movable blade 21 also performs reciprocating vibration via the trimmer driver 26. .
Since the trimmer driver 26 is constructed integrally with the blade base 24, there is no need for a dedicated member for power transmission, and the number of parts is small, resulting in excellent assemblability. Now, the outer blade 10 and the pair of trimmer blades 2, 2
As is clear from the above, both are attached to the inside of the blade frame 4, and each trimmer blade 2 is attached to the inner wall surface of the blade frame 4 and the outer blade 1.
It is located between 0 and 0. For this purpose, trimmer blade 2
The distance K from the top of the outer cutter 10 to the cutting edge of the trimmer blade 2 is shorter than that of a case where the outer cutter 10 is attached to the outside of the blade frame 4, and as shown in FIG. When the top portion is brought into contact with the skin S, both trimmer blades 2, 2 are also brought into contact with the skin S. In addition, a skin contact guide 4 formed on the opening edge of the blade frame 4
7, both trimmer blades 2, 2 and outer blade 1
The top portions of the blades contact the skin S at the same time, and a state in which the hair H can be cut with either blade can be reliably and easily obtained. In this state, if you move the electric razor in the direction shown by the arrow in FIG.
The shaver can be further cut to obtain a short shave at once. This allows you to perform a rough shave and a final shave at the same time. In addition, a pair of trimmer blades 2,
2 are located symmetrically on both sides of the main blade 1,
Similarly, when moving in the opposite direction, rough shaving and finishing shaving can be performed at the same time. The reason why the cutting edge direction of each trimmer blade 2 is directed away from the main blade 1 is to introduce the long hair H into the comb-shaped cutting edge of the fixed blade 20 and cut it between it and the movable blade 21. This is because the rough shave is made to be smooth and the cutting efficiency for rough shaving is high. The trimmer blade 2 configured as described above has the sixth
As shown in the figure, it is preferable to set the width W to be approximately the same as that of the main blade 1 in order to increase the effect of simultaneous use of the trimmer blade 2 and the main blade 1. By the way, in this electric shaver, even if you try to apply only the trimmer blade 2 to the skin S, the basic state is such that the trimmer blade 2 and the main blade 1 are in contact with the skin S at the same time as described above. , the skin contact guide 47 gets in the way. However, it is also conceivable to use the trimmer blade 2 alone, as when it is desired to cut long hair H, for example, hair H with a length of about 30 mm. For this purpose, one of the pair of trimmer blades 2 attached to the blade frame 4 is made to be able to slide freely along the inner surface of the blade frame 4, and a slider is arranged on the outer surface of the blade frame 4. Connect the pins 48, 48 protruding from the button 40 to the connecting pieces 28, 28 of the blade base 24.
It is connected to. If the slide button 40, which can be slid freely by locking the hook 49 to the edge of the opening provided in the blade frame 4, is operated upward, the eighth
As shown in the figure, one of the trimmer blades 2 protrudes greatly, and as shown in FIG. 9, the trimmer blade 2 can be used alone. In addition, the hook 29 provided on the trimmer blade 2 that is said to be able to slide freely
As shown in FIG. 5, the rib 46 is adapted to engage two click grooves 44, 44 formed on one surface of the rib 46 as it slides up and down.
The trimmer blade 2 will not be inadvertently retracted.

【Effect of the invention】

As described above, in the present invention, the outer cutter is held within the outer cutter frame formed as a rectangular frame, and the trimmer blade is disposed between the inner wall surface of the outer cutter frame and the outer cutter. It is something that
Since both the main blade and trimmer blade are located within the outer blade frame, both blades can be placed sufficiently close together, and therefore the main blade and trimmer blade can be applied to the skin at the same time. This means that you can do a rough shave with the trimmer blade and a final shave with the main blade at the same time, and even remove long hairs that cannot be cut with the main blade. Since the trimmer blades are placed on both sides of the outer blade, it is possible to get a satisfactory shave with just one operation, and the trimmer blades provide a rough shave followed by the main blade. It is possible to perform both the final shave and the final shave at the same time when moving the electric shaver in either direction, and the movable blade drive member of the trimmer blade is also attached to the inner wall surface of the outer blade frame. , the power transmission system members leading to the movable blade of the trimmer blade can all be housed within the outer cutter frame, compared to a case where the trimmer blade and movable blade drive members are placed on the outside of the outer cutter frame. It has a clean appearance and a simple structure, and since one of the trimmer blades can protrude freely from the outer cutter frame, it is easy to use the trimmer blade alone. The fact that the trimmer blade is able to protrude freely means that exposure of the trimmer blade is kept to a minimum when performing rough and finishing shaves in succession, and therefore it is possible to drop the trimmer blade. This protects the device from damage due to collisions with objects or other objects.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of an embodiment of the present invention, FIG. 2 is a perspective view showing the entire electric shaver equipped with the same, FIG. 3 is a perspective view of the same, and FIG. 4 is an exploded perspective view of the same. 5 is a longitudinal sectional view of the same as above, FIG. 6 is a plan view of the same as above, FIGS. 7, 8, and 9 are sectional views showing usage conditions, and FIG. 10 is a horizontal sectional view of the conventional example. , 1 is the main blade, 2 is the trimmer blade, 4 is the blade frame, and 10 is the outer blade.

Claims (1)

[Claims] 1. A main blade consisting of an outer cutter with a large number of cutting holes and an inner cutter that slides on the inner surface of the outer cutter, and a fixed cutter and a movable cutter that slides on the fixed cutter and is arranged near the main cutter. In a reciprocating electric shaver equipped with a trimmer blade, the outer cutter is held within an outer cutter frame formed as a rectangular frame, and
Trimmer blades are attached to the inner wall surface of the outer cutter frame on both sides of the outer cutter together with members for driving movable blades in the trimmer blade, and a pair of trimmer blades is arranged between the inner wall surface of the outer cutter frame and the outer cutter. , a reciprocating electric shaver characterized in that one trimmer blade can freely protrude from an outer blade frame.