JPH01204691A - Razor - Google Patents

Abstract

PURPOSE: To exactly shave long beard without close visual check by operating the vibrations of a cam mechanism on a first operating plane through a rotor shaft, transmitting them to a vibrating cutter and driving a rotary cutter, which is arranged on a second operating plane away from the vibrating cutter assembly, as well. CONSTITUTION: An eccentric 11 is carried by a rotor shaft 10 and can be rotated inside a groove hole 12, a slide block 13 is guided by a guide 14. A transmission lever 15 is carried in the slide block, and a vibrating cutter 17 can be reciprocatively moved through a connector 16 by this transmission lever 15. On the first operating plane, the cutter 17 is interlocked with a mesh blade 19 clamped in the form of arc. A connecting sleeve 22 is attached to a connecting member 21 of the rotor shaft 10 so as to be freely moved in the direction of axial line but not to be rotated. The rotary cutter 23 can be attached to the connecting sleeve 22, and this rotary cutter 23 is rotated within a thin shear plate 24. A web is inclined with respect to a radial line extended from the rotary axial line of the rotary cutter 23. Rotary cutter assemblies 23 and 24 are operated on a second operating plane B.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shaving device comprising a drive for driving a movable cutter in conjunction with a fixed shear plate.

For areas of the face where individual hairs are relatively short and extend evenly from the skin, vibrating shavers provide a satisfactory shaving effect. In particular, when shaving regularly every day, a quick and close shave can be obtained without any problems on the cheeks and the area above the lips.

However, many users of vibrating shavers experience problems with shaving around the tube.

In the neck region, whiskers grow out of the skin in many different directions. The angle at which the beard grows is extremely small, and it is in a state of constant growth. If these beards cannot be shaved with the vibrating cutter assembly, or if they are blown off during the first shave, especially during daily shaving, they can grow long and curve toward the skin. become.

As a result, hair is not easily captured by the hair entry holes of the vibrating shaving assembly. If you shave every other day or at longer intervals, the tendency to grow towards the skin increases.

In particular, in order to solve the problem of shaving long beards that extend curvedly towards the skin, special long hair cutters are provided, in this case often cutters that can be extended in different steps close to the vibrating shaving head. Even with the incorporation or attachment of long hair tucks, shaving this type of hair remains problematic and requires care. Without the use of a mirror that allows a clear view of the problem area, the problem of shaving extremely long and difficult to shave facial hair cannot be solved with known shaving devices.

The vibratory shaver described in DE 34 04 297 uses a shearing foil and a cutter that reciprocates beneath the clamped blade. However, net-blade shaving devices in which the cutter rotates below the net-blade are also known. This rotary shaver provides almost the same shaving effect, even on long and problematic beards. West German Patent No. 803,640 discloses a net-blade shaving head with a cutter rotating under a clamped shear foil, with a slotted shear plate and a specially polished A shaving device is described in which a shaving cutter is attached to a rotating shaving head with silk threads. The shaving properties of this combination are not satisfactory. Furthermore, the overall structure of the shaving head becomes complicated.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a shaving device with a vibrating cutter assembly that allows long beards to be precisely shaved in problematic areas without visual inspection.

To achieve this object, the invention provides a shaving device comprising a drive device for driving a movable cutter in conjunction with a fixed shear plate, comprising: a) a configuration in which the rotor axis is driven by an electric motor orthogonal to the wide side of the device; b) providing an eccentric or cam mechanism and transmitting the vibrations of this mechanism to a vibratory cutter operating on a first working surface and operating in conjunction with an arcuate shear foil clamped on the first working surface of the brace; The rotor also drives a rotary cutter disposed on a second working surface geometrically remote from the vibratory cutter assembly, the rotary cutter being connected to a lamina shear plate having generally radial lamina on the second working surface. It is characterized by a structure in which it operates in conjunction with each other.

In a preferred embodiment of the invention, a shaving device comprises a drive device for driving a movable cutter in conjunction with a fixed shear plate, comprising: a) a rotor axis driven by an electric motor orthogonal to the wide side of the device; , b) providing an eccentric or cam mechanism and transmitting the motion of this mechanism to a vibratory cutter operating on a first working surface and operating in conjunction with an arcuate shear foil clamped on the first working surface of the brace; and C) said rotor shaft. is configured to drive a rotary cutter in conjunction with a lamina shear plate having generally radial lamina at a second working surface offset from a first working surface of the vibratory cutter.

If you shave regularly and at longer intervals, such a shaver will not work unless you are shaving a full beard or a full beard.
You can shave accurately. Vibratory cutter assemblies of ordinary construction with a clamped curved mesh blade (shear foil) and a cutter pressed against this curved mesh blade do not pose problems in shaving regularly, especially if you shave daily. To obtain a good shaving effect in areas other than those where there is.

The rotary cutter assembly with flake shearing plates provides an individually and independently operating device for shaving long beards, especially beards that adhere to the skin in problematic areas of shaving, such as the neck or chin. structure, eliminating the need for well-lit mirrors or well-lit skin surfaces. The shaving device of the present invention combines the favorable characteristics of a vibrating shaving device with the favorable characteristics of a rotary shaving device having a flake shaving head. The rotating shaving head is
Obtaining a clean shave finish is not required.

In another embodiment of the invention, due to the required relative positioning of the working surfaces of the rotary cutter assembly and the vibratory cutter assembly, power transmission to one of the cutter assemblies is provided via an angular drive mechanism. The angular drive mechanism is a bevel gear mechanism. This configuration provides an ergonomically favorable structure and an improved appearance.

Such a bevel gear mechanism allows the rotary cutter assembly to be placed on the narrow side of the device,
A separate working surface may be located in close proximity to the vibratory cutter assembly. During use, the device need only be converted from one of the two working surfaces to the other.

In another embodiment of the invention, the eccentric drive mechanism comprises:
It is constructed with a sliding block that is reciprocated by an eccentric attached to the motor shaft.

Using a sliding block allows the working height of the eccentric drive mechanism to be significantly reduced.

In yet another embodiment of the invention, the electric motor is a two-pole phase synchronous motor having a permanent magnet rotor.

Using a single-phase synchronous motor with a rotor axis perpendicular to the wide side of the device, the swinging lever mechanism can operate on the wide side of the device and be rotationally driven directly from the wide side of the device.

In another preferred embodiment of the invention, the driving mechanism provides a main frequency of 1800 to 3000 r, p, with a main frequency of 50 Hz.
m, is applied to the rotary cutter (at 60Hz, 2
160 to 3600r, p, m,), and the vibration frequency of 100tlz (120Hz) is applied to the vibrating cutter by the eccentric or cam mechanism. Single-phase synchronous motor with 3°00 or 3600r, p depending on the power supply
, m, the double cam on the rotor shaft converts this rotation speed into an oscillating frequency of 100 Hz or 120 flz via a rocking lever mechanism. 1 In case of tangential transmission, the rotating cutting member is approximately 3000 or 3600
It rotates at r, p, and scolding speeds. With the intervention of a speed reduction mechanism, the speed of the rotary cutter can be changed to another suitable range, e.g.
Reduced to 00 or 216Or, p, scolding.

In another preferred embodiment of the invention, the device is equipped with a 1[g/7n battery, which is recharged by a solar cell. W as currently being put into practical use
By using mike or other solar cells,
It can be operated with or without a power outlet.

In yet another embodiment of the invention, the flake shear plate is configured to have a web thickness that is less likely to irritate the skin during rotary shaving. It has been found that flake thicknesses of between 0.1 mm and 0.5 mm are very satisfactory.

Furthermore, in another preferred embodiment of the invention, the rotary cutter has a symmetrical shape with respect to the radial direction of the shear plate lamina, the direction of rotation of the motor is arbitrary, and the drive motor is a single-phase motor with no anti-reversal device. period motor. This configuration makes the structure extremely simple.

Next, preferred embodiments of the present invention will be described with reference to the drawings.

The housing 2 of the shaving device I shown in FIGS. 1a and 1b is shown only diagrammatically and is driven by a two-pole, single-phase synchronous motor 3. The single-phase synchronous motor 3 includes a U-shaped stator core 4,
It has an excitation coil 6 provided on the rim 5 of the stator. A permanent magnet rotor 9 is rotatably mounted between the magnetic poles 8 at the free end 7 of the stator about a rotor axis 10 perpendicular to the large or wide side 25 of the device. The motor is equipped with a reverse rotation prevention device so that it rotates in one direction.

The rotor shaft 10 carries an eccentric 11 which is rotatable in a slot 12 of a sliding block 13. This sliding block 13 is guided by a guide 14.

The sliding block carries a transmission lever 15 by means of which the vibrating cutter 17 can be moved back and forth in the direction indicated by the double-headed arrow 18 via a coupling element 16. The cutter I7 is operated in conjunction with an arcuately clamped shearing foil 19 on its first working surface.

FIG. 1b shows how the rotor shaft 10 is provided with a coupling member 21 at the rear of the device shown in FIG. It is impossible to install.

A rotary cutter 23 can be mounted on the connecting sleeve 22 and rotated within the lamina shear plate 24 . The web 24a is inclined with respect to a radial line 24b extending from the axis of rotation of the rotary cutter 23. The rotary cutter assembly 23,24 operates on the second working surface B.

Figures 1c and 1d show the exterior of the device in which the drive device shown in Figures 1a and 1b is arranged. The shear foil/cutter assembly 17/19 is placed on the upper side 2a of the device and the rotary flake cutter assembly 23,24 is placed on the wide side 2a.
Place it in b. According to this device, areas of problem shaving are closely or cleanly shaved by the rotary cutter assembly 23/24, while areas of good skin are shaved by the arcuate foil/cutter assembly 17.
．． 19 allows you to shave. In the embodiment shown in Figures 1a to 1d, the rotary cutter assembly is placed on the wide side 2b parallel to the wide side 25 of the device.

Figures 2a-28 show the device in which the rotary cutter assembly 23,24 is located on the narrow side 2C of the shaver.

A single-phase synchronous motor 3 equipped with a reverse rotation prevention device (not shown) has a structure similar to that of the embodiment shown in FIG. . A stator magnetic pole 8 is arranged between the free ends 7 of the stator rim 5, and a permanent magnet 9 is rotatable about a shaft 10 between these magnetic poles.

The rotor shaft 10 carries a double cam lla.

This double cam lla is engaged with the swing lever mechanism 27 and operated in conjunction with the swing lever mechanism 27. This swing lever mechanism has a bell crank lever provided with a first lever arm 28 and a second lever arm 29. The bell crank levers 28/29 are rotatable around a fulcrum 30.

The lever arm 28 carries a pressure roller 3I, which is rotatable on a thrust bearing 32. Further, the pressure spring 33 presses the second rubber arm 28 having the pressure roller onto the double cam Ila. For details of this swing lever converter, please refer to German Patent No. 3404.
See No. 297.

The oscillating lever mechanism 27 allows the oscillating cutter 17 to move the second lever arm 29 and the connecting element j6 in the direction of the double-headed arrow 18.
You can move to and from the IM via .

In addition to the vibrating cutter assembly, a rotational force puller assembly is provided on another active surface. This rotary cutter assembly is driven by a toothed wheel 43 mounted on the rotor shaft 10.

This toothed wheel 43 is meshed with another toothed wheel 44. This toothed wheel 44 is connected to the bevel gear wheel 37.
sticks to. Both wheels are rotatably supported on the shaft end 45 of the shaft 3o. This bevel gear wheel 37 is meshed with another bevel gear wheel 38. The shaft 4o of this second bevel gear wheel 38 is supported by a bearing 39. This shaft 40 drives a coupling member 21 and thus a coupling sleeve 22 which engages a rotary cutter 23 in conjunction with a cap-shaped flake shearing plate 24 with an inclined slit.

The bevel gear structure, which is not clearly discernible from FIG. 2a, is shown in FIGS. 2b and 2C;
FIG. The rotor shaft 10 drives a toothed wheel 43 which is fixed to this shaft and meshes with a toothed wheel 44 . This toothed wheel 44 is fixed to the hevel gear wheel 37, and both wheels are rotatably supported on a shaft end 45.

The bevel gear wheel 37 is brought into mesh with the bevel gear 38. The shaft 40 rotates the coupling member 21, and the coupling sleeve 22 rotates the rotary cutter 23 in the shear plate 24. This drive mechanism allows the rotational speed of the rotary cutter to be adjusted and allows the rotary cutter assembly to be placed closer to the vibratory cutter assembly.

FIGS. 2d and 28 show that for such a drive structure:
It is shown how the rotary cutter assembly is placed on the narrow side 2c of the device 47. This provides greater maneuverability during use of the rotary cutter assembly.

The device can be operated with direct current or alternating current depending on the type of motor used for the drive part.

In case of d, c operation, it is advantageous to provide an accumulator which can be recharged by another solar cell.

The thickness of the web of shear plate flakes is suitably between 0.1 mm and 0.5 mm to avoid irritation to the skin.

The preferred rotation speed of the rotary cutter is 200 Or, p, m,
The preferred vibration frequency of the vibrating cutter is 100 Hz and the rotor speed is 3000 rpm.

Figure 3a shows a longitudinal section of a symmetrical rotary cutter 123 within a fixed shear plate 124 on the cap. As is clear from this figure, the individual cutter blades 123a of the rotary cutter 123 are perpendicular to the plane 125 of the lamina and therefore exhibit the same shaving characteristics in either direction of rotation, although this is not the preferred direction of rotation for cutting action.

Figure 3b is a plan view of the symmetrical rotary cutter assembly of Figure 3a. The slits 124a between the laminae +24b of the shear plate 124 extend radially. Rotary cutter 1
23 individual cutter blades 123a are attached to the sleeve H24a.
and rotates below the thin piece 124b.

The construction shown in Figures 3a and 3b is intended to be operable in either direction when using a single phase synchronous motor without anti-reverse protection.

FIG. 4 shows an electric motor 52 mounted on a base plate 51, with a motor shaft 54 projecting in the axial direction along a motor axis 53. This motor shaft 54 has an eccentric disk 5 having an eccentric pin 56 arranged eccentrically.
5, and this pin 56 projects parallel to the axial direction from the disk. An eccentric pin 56 is engaged by a coupling member 57 which causes it to reciprocate below the shearing foil 19 of the shaving head in the direction indicated by the double-headed arrow 18.

A bevel gear wheel 58 is attached to the motor shaft 54 and meshed with the bevel gear wheel 38. A shaft 40 of a bevel gear wheel 38 is supported in a bearing 39. The pongee 40 drives a connecting member 21 and thus a connecting sleeve 22 which engages a rotary cutter 23 and connects it to a flake shearing plate 24 on the cap having an inclined slit. make it work.

FIG. 4 shows a first working surface A on which the photographic cutter assembly operates.
and a second working surface B on which the rotary cutter assembly operates.

[Brief explanation of the drawing]

FIG. 1a is a diagrammatic illustration of a shaving device comprising a housing and a single-phase synchronous drive motor, with an eccentric drive mechanism driving a vibrating cutting member and a rotating cutting member via a bevel gear mechanism; FIG. , a vertical cross-sectional view of the interior of the device on the line Ib-1b of FIG. 1a, and FIG. 1C is a side view of the wide side with the vibrating cutter assembly and separate rotary cutter assembly of the shaver shown in FIGS. ta and Ib. , FIG. 1d is a side view of the narrow side of the device shown in FIGS. 1a-1c, and FIG. 2a is a side view of the narrow side of the apparatus shown in FIGS. 1a-1c, and FIG. ,
Also, a diagrammatic explanatory diagram showing a shaving device that drives a rotary cutting member via a bevel gear drive device, FIG. 2b is a longitudinal sectional view on the line ■b-nb of the drive mechanism of FIG. 2a, and FIG. 2c is a 2d is a side view of the wide side of the device; FIG. 2e is a side view of the narrow side of the device; 3a and 3b The figures are a diagrammatic longitudinal sectional view and a partially cutaway plan view of the rotary cutter assembly, respectively, and FIG. 4 is a diagrammatic view of a drive mechanism of another embodiment using a motor with a motor shaft supported in the axial direction. It is an explanatory diagram. l...Shaving device 2...Housing 3...Motor 4...Stator core 5...Rim 6...Exciting coil 7...Stator free end 8...Magnetic pole 9...Permanent Magnet rotor 10...rotor shaft 11...eccentric element 11a...double cam 12...slot hole 13...sliding block 14...guide 15...transmission lever 16...coupling element 17 (Vibration) Cutter 19... Net blade (shearing foil) 21... Connecting member 22... Connecting sleeve 23.123... Rotating cutter 24, 124... Thin shearing plate 24a... Web 24b... Radius line 27... Rocking lever mechanism 28... Second lever arm 29... Second lever arm 30... Fulcrum 31... Pressure roller 32... Thrust bearing 33... ...Pressure springs 37, 38.58...Bevel gear wheel 39...
Bearing 40...Shafts 43, 44...Toothed wheel 51...Base plate 54...Motor shaft 55...Eccentric disk 56...Eccentric bin

Claims (1)

[Claims] 1. A shaving device comprising a drive device for driving a movable cutter (17, 23) that operates in conjunction with a fixed shear plate (19, 24), comprising: a) a rotor axis perpendicular to the wide side of the device; b) An eccentric or cam mechanism (11) is provided, and the vibration of this mechanism is actuated on the first working surface (A) and
c) a second working surface (B) geometrically spaced from said vibrating cutter assembly by said rotor axis (10); A rotary cutter (23) disposed at the rotary cutter (23) is also driven, and this rotary cutter is operated in conjunction with a flake shearing plate (24) having substantially radial flakes on the second working surface (B). Shaving device. 2. A shaving device comprising a drive device for driving a movable cutter (17, 23) in conjunction with a fixed shear plate (19, 24), comprising: a) an electric motor whose rotor axis is perpendicular to the wide side surface (25) of the device; b) An eccentric or cam mechanism (11) is provided, and the vibration of this mechanism is actuated on the first working surface (A) and driven by the first working surface (A).
c) a second working surface (B) offset from the first working surface (A) of the vibratory cutter by said rotor shaft (10); ), the shaving device is characterized in that it is configured to drive a rotary cutter (23) which operates in conjunction with a flake shearing plate (24) having substantially radial flakes. 3. Due to the required relative arrangement of the working surfaces (A/B) of the rotary cutter assembly and the vibratory cutter assembly, the power transmission to one cutter assembly is performed via an angled drive mechanism. Item 2. The shaving device according to item 1 or 2. 4. The shaving device according to claim 3, wherein the angled drive mechanism is a bevel gear mechanism. 5. The eccentric drive mechanism includes a sliding block (13) that reciprocates by an eccentric (11) attached to a motor shaft (10).
) The shaving device according to any one of claims 1 to 4, wherein the shaving device has the following features. 6. The shaver according to any one of claims 1 to 5, wherein the electric motor is a two-pole single-phase synchronous motor having a permanent magnet rotor (9). 7. Drive mechanism provides 1800 to 3000 r.p.m. at a main frequency of 50 Hz. p. m. The rotation speed is given to the rotary cutter (23) (2160 to 3600 rpm at 60 Hz).
), 100Hz (120Hz) by the eccentric or cam mechanism.
7. A shaving device according to claim 1, wherein the vibrating cutter is provided with a vibration frequency of Hz). 8. Claim 1, wherein the rotary cutter (23) is directly driven by the rotor shaft (10) when the rotary cutter (23) is disposed on a wide side surface or a narrow side surface of the device housing.
7. The shaving device according to any one of items 6 to 6. 9. A shaving device as claimed in any one of claims 1 to 8, characterized in that the device is provided with a rechargeable storage battery, which is recharged by means of a solar cell. 10. A shaving device according to any one of claims 1 to 9, wherein the flake shearing plate is configured to have a web thickness that hardly irritates the skin during rotary shaving. 11. The shaving device of claim 10, wherein the thickness of the flakes is between 0.1 mm and 0.5 mm. 12. The shaving device according to claim 10 or 11, wherein the rotary cutter has a symmetrical shape with respect to the radial direction of the shear plate flakes, and the rotation direction of the motor is arbitrary. 13. The shaver according to claim 12, wherein the drive motor is a single-phase synchronous motor without a reverse rotation prevention device.