JPS6015343B2 - rotary electric razor - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rotary electric razor.

In conventional rotary electric razors, a donut-shaped outer cutter is disposed so as to cross a dome-shaped inner outer cutter, and the inner outer cutter and the outer cutter are movable relative to each other in the axial direction. It has been proposed that the inner inner cutter and the outer inner cutter are in pressure contact with the inner outer cutter and the outer outer cutter, respectively, and that the inner cutter and the outer cutter are slidably rotated on the inner surfaces of the inner outer cutter and the outer outer cutter. .

However, in the conventional configuration, the mechanism for relatively moving the inner and outer cutters is complicated, making assembly difficult and increasing costs. It was complicated to engage and disengage from the mechanism, and it was not easy to use. SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks, provide a rotary electric razor that is simple in construction, can be made at low cost, and is easy to use.

The present invention will be explained below along with the drawings.

In FIGS. 1 to 8, reference numeral 1 denotes a cylindrical housing, on the top surface of which a blade mount 2 is fixed with a pin 3, and a motor 4 is fixed to the blade mount 2.

A drive shaft 5 of the motor 4 extends upward through the blade mounting base 2, and a first joint body 6 is press-fitted therein. A joint pin 7 is fixed to the first joint body 6 in the horizontal direction, and the joint pin 7 is fixed to the first joint body 6.
It is engaged in a sliding slit 9 extending in the direction of the ball of the second joint body 8, which is covered so as to be slidable thereon. A float spring 1 is provided between the upper surface of the first joint body 6 and the inner upper surface of the second joint body 8.
0 is provided, and a key blade-shaped clutch portion 11 is provided in an expanded manner at the bottom outer peripheral edge of the second joint body 8. Reference numeral 12 denotes an inner cutter frame in which the first joint body 6 and the second joint body 8 can be housed, and a clutch portion 13 capable of engaging with the clutch portion 11 of the second joint body 8 is formed on the bottom inner circumferential twill portion. .

On the other hand, an outer cutter frame 14 is rotatably covered on the peripheral wall of the blade mount 2, and a step-shaped recess 15 is provided in the peripheral wall of the blade mount 2 when viewed from the side. At the same time, the outer cutter frame 14 is provided with an engaging protrusion 16 that can be inserted into the recess 15 and moved, so that when the outer cutter frame 14 is rotated with respect to the blade mounting base 2, the outer cutter frame 14 are provided so as to take several height positions.

The recess 15 includes a deep recess 15a and a shallow recess 15b, and is provided to provide a click motion when the engaging protrusion 16 moves.The upper edge of the outer cutter frame 14 has a donut-shaped outer periphery. The lower edge of the outer circumferential wall of the outer cutter turtle 7 is fixed.The outer circumferential outer cutter !7 is provided with a large number of radially extending furthest introduction holes, and the inner circumferential wall is provided with holes extending in the wisteria direction. A guide frame 18 having a guide hole is fixedly installed. Reference numeral 19 is a dome-shaped inner circumferential outer cutter surrounded by the outer circumferential outer cutter IT, and is provided with a large number of short whisker introduction holes.
A reinforcing frame 20 is fixed to the lower edge of the outer peripheral wall, and a protrusion of the reinforcing frame 20 is inserted into a guide hole of the guide frame 18.

A mounting plate 21 is fixedly installed in the center of the dome-shaped inner peripheral outer cutter 19, and the collar portion 22 of the mounting plate 21 is inserted into the upper part of the inner cutter frame 12.
is rotatably supported.

Reference numeral 23 denotes an outer peripheral inner cutter formed of a single plate, and the inner cutter frame 12
The blades 24 are supported so that they can move up and down in the direction of the ball and can rotate in conjunction with each other, and the plurality of blade parts 24 abut guide protrusions 24a protruding from the blade parts 24 on the inner surface of the outer peripheral outer cutter 17 against the guide frame 18. ) is slidably provided, and the inner cutter frame 1
It is prevented from coming off by the first stop ring 25 fixed to the inner cutter 2, and the stepped part of the inner cutter frame 12 and the outer inner cutter 23
The blade portion 24 is brought into elastic contact with the inner surface of the outer peripheral outer cutter 17 by the first pressing spring 26 disposed between the first pressing spring 26 and the first pressing spring 26 .

In this case, the outer circumferential inner cutter 23 has a bent portion 2 so as to fit smoothly with the inner cutter frame 12.
7 is provided. Further, an inner circumferential inner cutter 28 formed of a single plate is supported on the upper part of the inner cutter frame 12 so as to be movable up and down in the direction of the bag and to be interlocked. 2nd stop ring 2 fixed to
A second pressing spring 30 is prevented from coming off by 9 and is disposed between the stepped portion of the inner cutter frame 12 and the inner inner cutter 28.
A single twisted blade portion 31 is in elastic contact with the inner surface of the inner outer cutter 19. In this case as well, a bent portion 32 is provided at the contact portion of the inner circumferential inner cutter 26 with the inner cutter frame 12 so as to smoothly engage with the inner cutter frame 12. 33 is the inner cutter frame 12
It is a linking arm that has the ability to move up and down while being guided by a horizontal guide protrusion 35 in a recess 34 that extends in the entire direction of the koji.
It is locked to.

Further, the operation of the present invention will be explained in detail.

When the motor 4 is now rotated, the first joint body 6 and the second joint body 8 are rotated via the drive shaft 5, and together with this, the outer circumferential inner cutter 23 and the inner circumferential inner cutter 28 are rotated together with the outer circumferential outer cutter 17 and the second joint body 8. The inner outer cutter 19 undergoes super dynamic rotation on the inner surface.

In this case, the reinforcing frame 28 supporting the dome-shaped inner and outer cutters 19 is inserted into the guide hole of the guide frame 18 provided in the donut-shaped outer cutter 17. On the other hand, it is fixed in the rotational direction, but is movable in the axial direction.Therefore, when the upper surface of the inner peripheral outer cutter 19 comes into contact with the skin as shown in FIG. The blade 19, the mounting plate 21, and the second joint body 8 sink down, and relatively long whiskers are cut by the longest whisker introduction hole of the outer outer cutter 17), and the short whisker introduction hole of the inner outer cutter 19. The finishing shave can be achieved smoothly.
As shown in the figure, when the outer cutter frame 14 is appropriately rotated with respect to the blade mounting base 2 and the engaging protrusion 16 is laid over the recess 15, the outer cutter frame 14, the inner circumference of the outer cutter 17, 19 "outer-inner circumference" Inner blade 23, 28
, the linking arm 33 extends, and the second and first joint bodies 8, 6
, is overlaid by the inner cutter frame 12.

As the outer and inner circumference outer cutters 17 and 19 move upward, the amount of penetration of the skin against the outer and inner circumference outer cutters 17 and 19 increases, and the contact with the skin increases, so it is possible to quickly respond to the user's preference. can.
In addition, when removing the outer and inner outer cutters 17 and 19 from the housing 1', the outer and inner inner cutters 2 are removed via the linking arm 33.
3, 28, etc. can be removed, and by pressing the lower end of the linking arm 33 radially inward, the outer and inner outer cutters can be separated from the outer and inner inner cutters. According to the rotary electric razor of the present invention configured as described above, the razor is provided with a dome-shaped inner and outer cutter that is loosened by a donut-shaped outer cutter and is relatively movable in the axial direction. However, it is possible to achieve remarkable effects such as improving versatility at a low cost and making it possible to make it more sophisticated.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view of the rotary electric razor of the present invention, Fig. 2 is an exploded perspective view of the Oka part, Figs. 3 and 4 are perspective views of the same part, Fig. 5 is a side view of the Oka part, and Fig. 6 The figure is a partial sectional view, FIGS. 7 and 8 are side views of the same part, and FIGS. 9 and 10 are explanatory diagrams of the same operation. 1...Housing, 2...Blade mount, 3...Screw, 4...Motor 5...〇Drive shaft, 6...
...First joint body "7...Joint pin, 8...
2nd joint body, 9... Surishiki slit, wings... float spring too Fuki... clutch part, 12... inner cutter frame, turtle 3... clutch part, 14... outer cutter frame, 15...
... Recessed part, 16 ... Intrusion protrusion, 17 ... Outer circumference outer cutter, 18 ... Guide frame, Tortoise 9 ... Inner circumference outer cutter, 20 ... Reinforcement frame, 21 ...Mounting plate, 2
2... Rut portion, 23... Outer periphery inner cutter ~ 24... Blade portion, 25... First stop ring, 26... 1st pressure spring, 27...Bending portion, 28...Inner periphery inner cutter, 29...2nd stop ring, 30...2nd
Pressure spring, 3 turtles... Blade part, 32...M bending part "
33...-linking arm, 34... recess "35
...Horizontal guide protrusion. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10

Claims (1)

[Scope of Claims] 1. An outer circumferential outer cutter and an inner circumferential outer cutter surrounded by the outer circumferential outer cutter are arranged concentrically, and the inner circumferential outer cutter is prevented from moving in the rotational direction with respect to the outer circumferential outer cutter, and provided for axial movement,
The blade portions of the outer and inner inner cutters, each formed of a single plate, are arranged so as to be slidable and rotatable on the inner surfaces of the outer and inner outer cutters, and the outer and inner inner cutters receive the output of the motor. In an electric razor that is provided to be movable in the axial direction and interlocking with respect to the inner cutter frame, a first joint body is fixed to the drive shaft of the motor, and a second joint body is fixed to the first joint body in the rotational direction. The second joint body is interlocked and provided to be relatively movable in the axial direction, and the second joint body is connected to the inner cutter frame and abuts the inner peripheral outer cutter, and a push-up spring is interposed between the first and second joint bodies. A rotary electric razor that is characterized by the ability to 2. The rotary electric razor according to claim 1, wherein an outer cutter frame for holding an outer cutter is attached to a cutter mount fixed to the housing so as to be movable upward in the axial direction.