JPH0317832Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is characterized in that between the main body and the inner cutter body which rotates by pressing the inner cutter against the inner surface of the outer cutter body of the outer cutter body which is attached to and detached from the main body, The present invention relates to a rotary electric shaver having a beard debris storage chamber.

[Conventional technology]

A rotary electric shaver has a main body with a built-in electric motor, an outer cutter body that is removably attached, and a stepped part that protrudes inward along the circumferential direction on the inner periphery of the outer cutter body. A plurality of inner blades are pressed against the outer cutter, each of which slightly escapes inward when it comes into contact with the stepped portion, and returns to its original position after climbing over the stepped portion. A removable inner cutter is provided on the rotating shaft, a beard debris collection chamber is formed between the inner cutter and the main body, and the inner cutter has ventilation passing through the outer blade side and the beard debris collection chamber side. It has a structure with holes.

[Problem that the invention attempts to solve]

However, according to this conventional structure, when shaving, the inner cutter pressed against the outer cutter acts as a fan and generates wind as the inner cutter rotates. This wind, along with the shaved beard debris, flows from the ventilation hole provided in the inner blade body to the beard debris collection chamber, and passes through the mesh-like holes of the outer blade through the gap between the outer periphery of the inner blade body and the outer blade body. It is discharged to the outside of the outer blade body through. However, since the gap between the outer periphery of the inner blade body and the periphery of the outer blade body is opened linearly from the inner periphery of the beard debris collection chamber toward the outer blade, the beard debris that has flowed into the beard debris collection chamber can pass through the gap. There was a problem that the particles were emitted and scattered outside the outer blade body.

[Means for solving problems]

In order to solve the above-mentioned problems, an electric shaver according to the present invention has a main body that includes a built-in electric motor, and an outer peripheral protrusion that has an outer blade and is removably attached to the main body and has an internal thread. a blade body, and an outer circumferential protrusion having a plurality of inner cutters in pressure contact with the inner surface of the outer cutter of the outer cutter body, the outer circumferential protrusion being detachably attachable to the rotating shaft of the electric motor and having an outer circumferential screw threadedly engaged with the inner circumferential screw; The inner blade body has a ventilation hole in the direction of the main body and the outer blade, and forms a dust collection chamber between the body and the main body, and when the rotating shaft rotates between the outer peripheral screw and the inner peripheral screw, the inner blade body are screwed together so that they move and pass in the direction of the outer circumference.

[Effect]

According to this electric razor, when shaving, shaved off beard debris is removed by the wind flow generated by the inner blade of the rotating inner blade body, which is removed by the inner blade provided close to the rotating shaft. The beard debris flows from the plurality of ventilation holes in the body to the beard debris collection chamber and falls onto the wall of the body. Then, the air flowing into the beard waste storage chamber is
The flow is refracted from between the lower surface of the outer circumferential protrusion of the inner cutter body and the upper surface of the inner circumferential protrusion of the outer cutter body to between this inner circumferential protrusion and the outer circumferential protrusion of the inner cutter body that is slightly spaced apart. It further bends and flows between the outer peripheral thread of the peripheral protrusion and the inner peripheral thread of the outer blade, passes through the mesh-like holes of the outer blade, and is discharged to the outside of the outer blade. Since the air flows by bending in this way, resistance is created to the flow, and due to this resistance, the hair dust contained in the air is hardly discharged to the outside of the outer blade body. Therefore, most of the beard debris flowing in the beard debris collection chamber falls and accumulates on the wall of the main body.

In addition, in order to disassemble the outer cutter body and inner cutter body for cleaning etc., remove the outer cutter body from the main body, and connect the outer circumference screw of the outer circumference protrusion of the inner cutter body to the inner circumference protrusion of the outer cutter body. The inner cutter body may be rotated in the opposite direction to the drive rotation of the rotating shaft by contacting the inner circumferential screw. To attach the inner cutter to the outer cutter, the outer screw on the outer protrusion of the inner cutter comes into contact with the inner screw on the inner protrusion of the outer cutter, and the inner cutter is driven by the rotating shaft. Just rotate in the same direction as the rotation.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a main body made of a suitable synthetic resin, and this main body 1
has a bottomed cylindrical shape with a substantially circular cross section, and has an electric motor 2 inside, and a rotating shaft 3 of this electric motor 2 is connected to the main body 1.
It protrudes through approximately the center of the upper wall 4. A rotation stopper 5 is formed at the tip of the protruding rotating shaft 3. A tubular mounting wall 6 is formed to protrude along the outer periphery of the main body 1 so as to surround the protruding rotating shaft 3, and a screw 7 is provided on the outer periphery of the mounting wall 6.
has been established.

Reference numeral 8 denotes a cylindrical outer blade body, and this outer blade body 8 has an inner circumferential screw 9 screwed into the screw 7 of the mounting wall 6 of the main body 1 at one opening end, and the other opening end At the end thereof, an outer cutter 10 made of a thin steel plate is provided which faces the rotating shaft 3 and has an arcuate cross-section outward. This outer cutter 10 is provided with a large number of mesh-like through holes, leaving only a small portion in the center and peripheral portions. In addition, outer blade 10
An inner circumferential protrusion 11 that protrudes along the circumferential direction is formed on the inner periphery of the intermediate portion between the inner circumferential screw 9 and the inner circumferential screw 9, and an inner cutter body to be described later is attached to the inner periphery of the inner circumferential protruding portion 11. An inner circumferential screw 12 is provided that allows the inner cutter body to move in the direction of the outer cutter 10 when rotated in the same direction as the drive rotation of No. 3.

Reference numeral 13 denotes an inner blade body, and this inner blade body 13 has a mounting hole 14 that fits into the rotating shaft 3, and is configured to rotate integrally with the rotating shaft 3 by means of a rotation stopper 5 of the rotating shaft 3. It's getting old. Furthermore, this inner blade body 1
3 is approximately disk-shaped, and has an outer circumferential screw 15 on its outer circumferential edge that can be screwed into the inner circumferential screw 1 of the inner circumferential protrusion 11 of the outer cutter body 8.
When assembled, a gap G is formed between the lower surface of the outer circumferential protrusion 16 of the inner cutter body and the upper surface of the inner circumferential protrusion 11 of the outer cutter body 8. As shown in the figure, the inner cutter body 13 has a plurality of inner cutters 17 arranged radially and movable vertically through the inner cutter body 13, and the inner cutters 17 are constantly moved in the direction of the outer cutter 10 by an appropriate means. The blade portion 17a is biased against the inner surface of the outer cutter 10 and presses against the inner surface of the outer cutter 10.
have. Note that the inner cutter body 13 has a plurality of ventilation holes 1 between each inner cutter 17 around the attachment hole 14 that penetrate the inner cutter body 13 in the direction of the outer cutter 10 and the main body 1.
There are 8. A beard debris storage chamber 19 is formed between the inner blade body 13 and the main body 1.

In this configuration, when the electric motor 2 is driven, the inner cutter body 13 is rotated by the rotating shaft 3 of the electric motor 2, and the inner cutter body 17 of this inner cutter body 13 slides into pressure contact with the outer cutter 10 of the outer cutter body 8. I can shave my beard. Then, the shaved beard debris is removed from the plurality of ventilation holes 18 of the inner cutter body 13 provided close to the rotating shaft 3 by the wind flow generated by the inner cutter 17 of the rotating inner cutter body 13. It flows into the beard waste storage chamber 19 as shown in FIG. The beard debris that has flowed into the beard debris storage chamber 19 falls onto the upper wall 4 of the main body 1 and is collected therein. Then, the air that has flowed into the beard debris storage chamber passes between the lower surface of the inner cutter body 13 and the upper surface of the inner circumference protrusion 1 of the outer cutter body 8, and further passes through the inner circumference protrusion 11.
The flow is refracted into the gap G between the outer peripheral protrusion 16 of the inner cutter body 13 and the inner cutter body 13, which is slightly spaced apart from the inner cutter body 13, and the flow is refracted between the outer circumference thread 15 of the outer circumference protrusion 16 and the inner circumference of the outer cutter body 8, and , passes through the mesh-like holes of the outer cutter 10 and is discharged to the outside of the outer cutter body 8. Since the air flows by bending in this way, resistance is created to the flow, and the hair debris contained in the air is hardly discharged from the outer blade body due to this resistance. Therefore, most of the beard debris flowing in the beard debris reservoir chamber 19 is
It falls inside and accumulates.

In addition, for cleaning etc., the outer blade body 8 and the inner blade body 1 are
3, remove the outer cutter body 8 from the main body 1, and remove the outer circumference screw 1 of the outer circumference protrusion 16 of the inner cutter body 13.
5 is brought into contact with the inner circumferential thread 12 of the inner circumferential protrusion 11 of the outer cutter body 8, and the inner cutter body 13 is rotated in the opposite direction to the driving rotation direction of the rotary shaft 3. In addition, in order to attach the inner cutter body 13 to the outer cutter body 8, the outer circumferential screw 15 of the outer circumferential protrusion 16 of the inner cutter body 13 is brought into contact with the inner circumferential screw 15 of the inner circumferential protrusion 11 of the outer cutter body 8, The inner blade body 13 may be rotated in the same direction as the drive rotation of the rotating shaft 3.
When removing the outer cutter body 8 from the main body 1, even if the outer cutter body 8 is removed while the rotary shaft 3 is rotating, the outer circumferential protrusion 16 of the inner cutter body 13 and the outer circumferential thread 15 will be removed from the rotary shaft. When the inner cutter body 13 rotates, the inner cutter body 13 moves toward the outer cutter 10 of the outer cutter body 8, so that the inner cutter body 13 can be prevented from jumping out from the outer cutter body 8.

In addition, in the embodiment of the present invention, the ventilation hole 1 of the inner blade body 13
8 is provided between each inner cutter 17 around the attachment hole 14, but the hole holding the inner cutter 17 may also be a ventilation hole.

[Effect of idea]

According to the present invention, the beard debris flowing into the beard debris storage chamber by the wind current is blocked by the slightly spaced refraction air path where the inner circumferential protrusion of the outer cutter body overlaps with the outer circumferential protrusion of the inner cutter body. It is possible to prevent emission and scattering.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a vertical cross-sectional view of a part of the main body to which the outer cutter and inner cutter are attached, and FIG. 2 is a - line with the outer cutter omitted in FIG. FIG. 3 is a bottom view of the outer cutter with the inner cutter attached. 1...Main body, 2...Electric motor, 3...Rotating shaft, 8
...Outer blade body, 10...Outer blade, 11...Inner circumference protrusion, 12...Inner circumference screw, 13...Inner cutter body, 15...
...Outer circumferential screw, 16... Outer circumference protrusion, 17... Inner blade, 18... Ventilation hole, 19... Beard debris storage chamber.

Claims (1)

[Scope of utility model registration request] A main body with a built-in electric motor, an outer cutter body having an outer cutter and an inner circumferential protrusion that is removable from the main body and has an inner circumferential thread, and a plurality of inner cutters on the inner surface of the outer cutter of the outer cutter body. an outer circumferential protrusion having an outer circumferential screw that is press-contacted to the rotating shaft of the electric motor and that is detachably attached to the rotating shaft of the electric motor and that is screwed into the inner circumferential screw; An electric cutter comprising an inner cutter body forming a hair debris storage chamber, and the outer circumferential screw and the inner circumferential screw are screwed together so that when the rotating shaft rotates, the inner cutter body moves toward and passes through the outer cutter. Razor.