JPS5855797B2 - reciprocating electric razor - Google Patents

Description

[Detailed description of the invention] The present invention relates to a reciprocating electric power sled.

Conventionally, in this type of reciprocating electric razor, as shown in FIGS. 6 and 7, an eccentric cam 4' loaded on the output shaft of a motor 2' is connected to a leg portion of a swingable driver 5'. 8′
The drive bush 9' of the drive element 5' is coupled to the guide bush 16' of the inner blade 13'.

Therefore, when the motor 2' is driven, the drive element 5' is oscillated via the eccentric cam 4', and the inner cutter body 13' is driven back and forth.

However, when driving the inner cutter body 13', the reaction force is applied to the razor body via the motor 2', resulting in large swinging.

Furthermore, with only a single inner blade 13', the shaving area is small and shaving takes a relatively long time.

SUMMARY OF THE INVENTION An object of the present invention is to provide a reciprocating electric power sled that eliminates the above-mentioned drawbacks, greatly reduces vibration, and enlarges the shaving area.

The reciprocating electric razor of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, the housing 1 is divided into two parts and is a pair of housings (only one half is shown) that can be combined, and the lower part thereof is provided so that the motor 2 and the like can be accommodated.

The motor 2 is loaded with an eccentric cam 4 having an eccentric shaft 3 fixed thereto.

Reference numeral 5 denotes a driver having a rectangular main body 6;
Cuts 7 are formed in the four corners of the frame to make it thinner, and the frame is configured to be able to bend into a parallelogram shape when viewed from above.

Further, a bearing part 8 is protrudingly provided on one inner surface of the main body 6 to receive the eccentric shaft 3 of the eccentric cam 4 and can absorb a motion component in a direction perpendicular to the side surface of the main body 6. A driving bush 9 is provided opposite to the surface.

Further, a pivot pin 10 is protruded from the upper and lower edge surfaces of the center of both ends of the main body 60 of the driver element 5, and is inserted into the holding part 11 protruding from the inner surface of the Uji puffer 1 when the housing 1 is assembled. It is provided so as to be pivotally supported via the body 12.

Reference numeral 13 denotes a pair of inner cutter bodies, which are arranged so as to be able to slide on the inner surface of the outer cutter 15 held on the outer cutter frame 14, and each guide bush 16 can be connected to each of the drive bushes 9 described above. It is provided.

Further, the present invention will be explained in detail.

When the motor 2 is now driven, the main body 6 of the driver 5 is swung via the eccentric shaft 3 of the eccentric cam 4.

In this case, since the pivot pin 10 of the main body 6 is pivotally supported by the holding part 11 of the housing 1, when the eccentric shaft 3 is eccentrically rotated within the bearing part 8 as shown in FIGS. By bending into the shape, one side of the main body 6 is reciprocated, and the other side is reciprocated in the opposite direction to the negative side.

Therefore, each inner cutter body 13 linked to the drive bush 9 alternately slides back and forth on the inner surface of the outer cutter 15 to perform a shaving operation.

On the other hand, as shown in FIG. 5, when the inner cutter body 13 having a weight of ml, rn20 is driven by the eccentric shaft 3, a reaction force F1 acts against the driving force of the inner cutter body 13, which is indicated by a solid arrow, and the eccentricity The reaction force F is transmitted to the housing 1 via the shaft 3, the eccentric cam 4, and the motor 2, but the reaction force F is transmitted to the pivot pin 10.
Since a force F2°F3 in the opposite direction to 1 is generated, the resulting force F transmitted to the housing 1 is F=F1-(F2-F3)
As a result, vibrations are greatly reduced.

In addition, since the pair of inner cutters 13 can be simultaneously driven by a single motor 2, the hair-clamping area can be substantially doubled.

According to the reciprocating electric power sled of the present invention configured as described above, it is possible to significantly reduce vibrations, eliminate discomfort, and improve usability, and at the same time, it is possible to expand the shaving area. To achieve effects such as shaving in a short time.

[Brief explanation of the drawing]

Figure 1 is a partial cross-sectional view of the reciprocating electric force sled of the present invention.
Figure 2 is an exploded perspective view, Figure 3a is a plan view of the same part, b is a side view of the same part, Figures 4 and 5 are explanatory diagrams of the same operation, and Figure 6 is a conventional reciprocating electric razor. Simplified internal side view of
FIG. 7 is a partially exploded perspective view of the same. 1...Housing, 2...Motor, 3
...Eccentric shaft, 4...Eccentric cam, 5...
...Driver, 6...Main body, 7...
Notch, 8...Bearing part, 9...Drive bushing, 10...Pivot pin, 11...
Holding part, 12... Intermediate body, 13... Inner blade body, 14... Outer blade frame, 15...
・Outer blade, 16...Guide bush.

Claims (1)

[Scope of Claims] 1. An electric razor in which the output of a motor housed in a housing is transmitted to an inner cutter via an eccentric cam and a swingable driver to cause the inner cutter to reciprocate, the shaver having a parallelogram shape. A reciprocating electric razor characterized by having drive bushes protruding from both sides of a deflectable drive element that cooperate with a pair of inner blade bodies. 2 The four corners of the rectangular main body of the drive element are thinly provided, a bearing part is formed on one inner surface to receive the eccentric shaft of an eccentric cam connected to the motor, and drive bushes are provided oppositely on the upper edge surface at the center of both sides. 2. The reciprocating electric power sled according to claim 1, wherein the reciprocating electric power sled is provided with a pivot pin that is pivotally supported on the housing and is provided on the upper and lower edge surfaces at the center of both ends.