JPS60870B2 - Reciprocating electric razor with trimmer mechanism - Google Patents

Description

[Detailed description of the invention] The present invention relates to a reciprocating electric razor with a trimmer mechanism.

Conventionally, in this type of reciprocating electric razor with a trimmer mechanism, an eccentric element having an eccentric pin is fixed to the output shaft of a drive motor, and the upper plate of the driver, which is rectangular when viewed from the side, is connected to the eccentric pin. The driver is provided so as to be able to reciprocate, and the driver is connected to an inner cutter stand that holds the inner cutter and a trimmer movable blade of a trimmer mechanism, so that the inner cutter is reciprocated on the inner surface of the outer cutter, and a trimmer movable blade is connected to the drive element. However, in the conventional configuration, when the driver connected to the biased D pin oscillated, vibrations were generated and significant noise was generated.The present invention solves the above drawbacks. remove,
An object of the present invention is to provide a reciprocating electric razor with a trimmer mechanism capable of sufficiently suppressing vibration and reducing noise. The present invention will be explained below along with the drawings.

In FIGS. 1 to 4, reference numeral 1 denotes a housing in which a drive motor 2 is housed, and the output shaft of the drive motor 2 has a biased zero pin 3 projecting upward so that the mechanical phase is shifted by 180 degrees from each other. A D cam 4 is fixedly installed.

A driver 5 is connected to the eccentric pin 3 and the eccentric cam 4 so as to be able to reciprocate. The driver element 5 has a through hole 6 approximately in the center.
The lower driving plate 7 is provided with a pair of vertical thin inner elastic slopes 8, 8, which are connected to the inner elastic slopes 8, 8 and opposite to each other. A U-shaped upper drive plate portion 9 is integrally continuous. Further, on the upper surface of the lower drive plate portion 7, there is provided an eccentric cam 4 at the tip thereof passing through the through hole 6.
A lower drive arm 10 that can be engaged with is provided in a protruding manner. The lower drive arm 10 includes a base 11 bent in an L-shape in a direction perpendicular to the lower drive plate 7, and a distal end 12 bent in an L-shape in a horizontal direction with respect to the base 11. are doing. Further, the connecting portion 13 between the base portion 11 and the tip portion 12 has sufficient maneuverability, and the free end of the tip portion 12 is formed as a ring-shaped portion 14 so that the eccentric cam 4 can be inserted therein. ,
It reaches above the through hole 6. On the other hand, the upper drive plate portion 9
An upper drive arm 15 that is located above the lower drive arm 10 and into which the eccentric pin 3 can be engaged is provided on the lower surface.

The anterior tibial arm 15 is formed in an E-shape, and has side leg parts 16,1 bent in an L-shape in a direction perpendicular to the upper drive plate part 9.
6 and the side legs 16, the central leg 18 is integrally connected to the side legs 16, and has a free end formed as a ring-shaped portion 17 such that the eccentric pin 3 can be inserted therein. Further, at the center of the upper surface of the upper drive plate section 9, a drive section 20 having a socket 19 is provided upright. Furthermore, thin outer elastic plate parts 21, 21 are vertically extended at both ends of the lower drive plate part 7 in parallel with the inner elastic slope parts 8, 8, and at the upper ends of the outer elastic plate parts 21, 21, thin outer elastic plate parts 21, 21 are vertically extended. The extension ears 22, 22 extend horizontally, respectively.

Further, mounting ear pieces 23, 23 are extended to the extension ear parts 22, 22, and by inserting screws 24, 24 through the screw holes and screwing the screws 24, 24 into the housing 1, the drive element 5 /・It is provided so that it can be attached to Ujingu. In addition, a trimmer drive protrusion 25 extends horizontally on one side of the lower drive plate portion 7. Reference numeral 26 denotes an inner cutter base whose support shaft portion 27 is received in a receiver □19 provided on the drive platen 20' of the drive element 5, and which is connected to the drive element 5. The inner cutter group 28
is held and pushed up via a suitable spring,
When the drive element 5 is driven, the inner cutter group 28 becomes the outer cutter 29.
It is configured to slide on the inner surface.

The outer cutter 29 is supported by an outer cutter frame 301,
The outer cutter frame 3 is loaded onto the housing by engaging the elastic support pin 31 attached to the housing 1. Reference numeral 32 denotes a trimmer mechanism attached to, for example, the back surface of the housing 1, and includes a trimmer drive body 33 that engages with the trimmer drive protrusion 25.
A trimmer movable blade 34 is connected to 3.

Further, the trimmer movable blade 34 receives a driving force via the trimmer drive body 33, and is pressed against the trimmer fixed blade 37 by the spring force of a push-up spring 36 held on the trimmer base 35 and is slid. The trimmer fixed blade 37 is fixed to the housing 1 via a trimmer housing 38. Furthermore, the operation of the present invention will be explained in detail.

When the drive motor 2 is now driven, the eccentric cam 4 is engaged with the ring-shaped portion 14 provided on the lower drive arm 1 of the lower drive plate 7. The annular portion !7 provided in the eccentric cam 5 has a t phase of 180 with respect to the eccentric cam 4.
Since the eccentric pins 3 provided at different degrees are engaged, the motion component acting perpendicularly to the sliding direction of the inner cutter group 28 is applied to the connecting portion 13 of the lower drive arm 10 or the upper drive arm 15. The lower driving plate part 7 and the upper driving plate part 9 reciprocate in opposite directions.

Therefore, the vibration generated in the upper drive plate part 9 to which the inner cutter stand 26 is connected is canceled out by the vibration generated in the lower drive slope part 7, which reciprocates in the opposite direction to the upper drive plate part 9, with a mechanical phase difference of 180 degrees. In other words, the vibrations generated in the upper drive slope portion 9 are canceled by the reciprocating movement of the lower drive plate portion 7, and the lower drive slope portion 7 functions like a balancer with respect to the upper drive plate portion 9, and the vibration is greatly reduced. be done. In addition, the trimmer mechanism 32 is driven via the lower drive plate part 7. In other words, the trimmer drive body 33 and trimmer movable blade 34 of the trimmer mechanism 32 are driven by the lower drive plate part 7.
It becomes a load and functions as a balance body, which can further improve stability. Also, the trimmer movable blade 3 of the trimmer mechanism 32
4 is determined by the amount of movement of the lower drive plate portion 7, that is, the amount of eccentricity of the individual cam 4. Therefore, if the amount of eccentricity of the eccentric cam 4 and the amount of eccentricity of the eccentric pin 3 are different, the amount of eccentricity of the eccentric pin 3 The amount of movement of the inner blade group 28 and the trimmer movable blade 34 which are connected to the upper drive plate part 9 and which are continuous to each other can be made different.

Furthermore, the thin inner elastic plate parts 8, 8 and the outer elastic slope part 21,
21 has sufficient flexibility, and when the driver 5 swings from the position shown in FIG. 5 to the position shown in FIG.
Compared to the case where the outer elastic plate part is not movable, the inner elastic plate parts 8, 8 and the outer elastic plate parts 21, 21 work to expand, so that the displacement in the vertical direction with respect to the reciprocating motion of the driver 5 is reduced. The amount 6 can be made small, and in this respect as well, remote causes such as vibration can be reduced.

According to the reciprocating electric razor with a trimmer mechanism of the present invention configured as described above, it is possible to maintain sufficient balance when the driver vibrates, effectively suppressing the generation of vibration, and greatly reducing noise, etc. Achieve remarkable effects such as being able to.

[Brief explanation of drawings]

Fig. 1 is a front view showing a part of a reciprocating electric power razor with a trimmer mechanism of the present invention in cross section, Fig. 2 is a sectional view of the same, Fig. 3 is an enlarged perspective view of the same part, and Fig. 4 is a cross-sectional view of the same part. FIGS. 5 and 6 are an enlarged perspective view of the outer part seen from the direction opposite to that shown in the figure, and are explanatory diagrams of the same operation. 1... Housing, 2... Drive motor, 3
...Eccentric pin, 4...Eccentric cam, 5.
...Driver element, 6...Through hole, 7...Lower drive plate part, 8
...Inner elastic slope part, 9...Top driving slope part, 10
...Lower drive arm, 11...Base, neck 2...
・Tip part, 13...Connecting part, 14...Ring part,
15...Top drive arm, 16...Side leg section''17
...Argument part, 18...Central leg part 19...Reception, 20...Driving camphor part 21...Outer elastic slope part, 2
2... Extension ear part, 23... Mounting ear piece, 24...
... Screw, 25 ... Trimmer drive protrusion, 26 ...
... Inner cutter stand, 27... Support shaft section 28... Inner cutter group, 29... Outer cutter, 30... Outer cutter frame, 31.
...Elastic support pin t 32 ... Trimmer mechanism, 33 ... Trimmer drive body, 34 ... Trimmer movable blade, 35 ... Trimmer base, 36 ... Push-up spring , 37
...Trimmer fixed blade, 38...Trimmer housing. Figure 2 Figure 3 Figure 1 Figure 4 Figure 5

Claims (1)

[Claims] 1 The output of the drive motor housed in the housing is transmitted to the inner cutter or trimmer movable blade via the eccentric element and the driver or trimmer drive body, and the inner cutter or trimmer movable blade is In an electric razor with a sliding blade, an eccentric cam is fixed to the output shaft of a drive motor and has an eccentric pin protruding with a mechanical phase shifted by 180 degrees. The drive plate portion has an outer elastic plate portion that is integrally arranged and fixed to the housing, and a drive arm that engages with the eccentric cam and the eccentric pin is provided on each of the lower drive plate portion and the upper drive plate portion; A reciprocating electric razor with a trimmer mechanism, comprising a driver having a protruding trimmer drive protrusion linked to a trimmer drive body of the trimmer mechanism on its side surface.