JPS5922543B2 - vibrating electric razor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has a main blade for shaving consisting of an outer blade having a large number of hair introduction holes, an inner blade that slides back and forth on the inner surface of the outer blade, and a cutting edge formed on each side edge. In a vibrating electric shaver having a sharpening blade body consisting of a fixed blade and a movable blade, the main shaving blade and the sharpening blade body can be selectively and independently driven by a simple mechanism. It is composed of

Hereinafter, one embodiment of the present invention will be explained based on the drawings.
1 is the main body case, two-part synthetic resin case 2,
2', inside of which is a vibrating rod 3 and a pair of frames 4,
4 and is pivotally supported by a shaft 5 so as to be swingable.

The vibrating rod 3 has a frame 4 on one half case 2' side.
is attached by being fixed with screws 6.6.

7.7 is a coil spring that presses the vibrating rod 3 from both sides.

One of the two halves 2 and 2' is equipped with a cutting blade 10 consisting of a fixed blade 8 and a movable blade 9, each having a cutting blade formed at one end edge. One movable blade 9 of the blade body 10 has a driving pin 11 provided at the center thereof and protrudes inward.

The vibrating rod 3 has an engagement groove 12 formed at its upper end, and the engagement groove 12 is connected to a large diameter groove 13 in the shape of a letter V below.
and an intermediate long groove 14 connected thereto.

Reference numeral 15 denotes a gourd-shaped transmission piece 1 that fits into the engagement groove 12.
6 at the upper end, and at the upper end thereof, on the side opposite to the transmission piece 16, a fitting groove 17 having the same shape as the engagement groove 12 into which the first drive pin 11 engages and disengages is formed. has been done.

That is, the fitting groove 17 is an upper vertical groove 18 and a lower downwardly diverging groove 19 communicating with the vertical groove 18.

The lower end of the transmission lever 15 is pivotally attached to one end of an L-shaped intermediate member 20 by a pin 21, and 22 is a locking plate.

Reference numeral 23 denotes a heir that allows the transmission lever 15 to be slidably operated up and down from the outside. It is attached by a pair of elastic attachment pieces 25, 25 through it.

The intermediate member 20 has articulation pieces 26, 2 at both lower ends.
6 is formed, which engages with and disengages from an articulation protrusion 27 provided on the inner surface of the split case 2, thereby reliably moving the transmission rod 15 up and down.

Reference numeral 28 denotes an outer cutter frame that is detachably attached to the upper surface of the main body case 1, and an outer cutter 29 with many hair introduction holes is stretched in an arch shape, and is attached to both lower ends of the outer cutter 290. The outer cutter support member 30 has an inner cutter supporting protrusion 31 extending inward.
Each pair of protrusions 31, 31, .
form 3.

Reference numeral 34 denotes a spring for pushing up and driving the inner blade, which has a recessed part 35 in the center into which the upper end of the transmission piece 16 is fitted or separated, and is attached to the lower surface of the inner blade 32.

36 is an electromagnetic device that vibrates the vibrating rod 3 back and forth.

When the above-mentioned components are assembled, the overall structure becomes a cross-sectional structure as shown in FIG.
The vibrating rod 3 moves up and down while being engaged with an engaging groove 12 formed at the upper end thereof.

Then, the upper end of the transmission piece 16 engages with and disengages from the central concave portion 35 of the inner cutter pushing and driving spring 34 attached to the lower surface of the inner cutter 32.

On the other hand, a fitting groove 17 formed on one side of the transmission rod 15 has a longitudinal groove 18 and a groove 19 that widens toward the end, and engages and disengages from the drive pin 11 of the movable cutting blade 9 when the transmission rod 15 moves up and down. do.

The engagement relationship between the fitting groove 17' and the driving pin 11 is reversed, and a driving pin 11 is provided on the side of the transmission lever 15, and the pin 11 is movable through the fitting groove 17, which has a groove portion that engages and disengages with the driving pin 11. It may also be formed on the blade 9.

Now, as shown in FIG. 3, when the external heir 23 is moved upward, the transmission piece 16 at the upper end of the transmission lever 15
In the state in which it is engaged with the upper end engagement groove 12, its upper end is engaged with the central concave portion 35 of the leaf spring 34 for pushing up and driving the inner blade, and the movement of the vibrating rod 3 is caused by the movement of the single shaving blade 33. It is transmitted to the inner cutter 32 and can move.

However, the relationship between the drive pin 11 of the movable cutting edge 9 and the fitting groove 17 of the transmission rod 15 is such that it is located in the downwardly expanding groove 19 below the fitting groove 17, as shown in FIG. Not engaged.

Therefore, when the electromagnet device 36 is operated by the operation switch 37, the vibration rod 3 swings, and the transmission rod 15
swings about the pivot 21 at its lower end as a fulcrum, and the transmission piece 1
6, the inner cutter 32 reciprocates, only the shaving blade 33 operates, and the edge shaving blade 10 does not operate.

Next, when the outer heir 23 is moved down, the entire transmission rod 15 is moved with the upper end transmission piece 16 engaged with the retaining groove 12 of the vibrating rod 3, as shown in FIG. Therefore, the tip of the transmission piece 16 separates from the central recessed part 35 of the inner blade push-up and drive spring 34, and on the other hand, the movable blade 9 for diversion is connected to the fitting groove 17 formed on the side surface of the transmission rod 15. As shown in the figure, the drive pin 11 engages with a narrow vertical groove 18 in the upper part of the fitting groove 17.

Therefore, when the electromagnet device 36 is activated by the operation switch 37, the vibrating rod 3 vibrates back and forth, and since the transmission piece 16 is engaged with the upper end engagement groove 12 of the vibrating rod 3, the movement of the vibrating rod 3 is It is transmitted to the transmission rod 15 and swings and vibrates about the pivot point 21 at the lower end as a fulcrum, but since the tip of the transmission piece 16 is separated from the drive spring 34 of the inner cutter 32, the inner cutter 32 does not operate. Instead, since the drive pin 11 of the movable cutting edge 9 and the fitting groove 17 of the transmission rod 15 are engaged, the transmission rod 1
The motion of 5 is transmitted to the movable blade 9 for sharpening, and the movable blade 9
cooperates with the fixed blade 8 to operate only the sharpening blade 10,
A breakthrough is achieved.

In this way, either the shaving blade 33 or the shaving blade 10 can be selectively driven.

Therefore, power is transmitted efficiently, and when one is driving, the other is stopped, so noise during operation can be reduced.

Furthermore, as a vibrating electric shaver, the power transmission switching mechanism can be achieved with a reduced number of parts, making the structure extremely simple.

As described above, the present invention provides a vibrating electric shaver that is equipped with a shaving blade on the upper part of the main body case, a shaving blade on the side part, and a vibrating rod that is oscillated by an electromagnetic device or the like inside the main body case. A mechanism capable of selectively transmitting and switching the power of the vibrating rod to the shaving blade or the sharpening blade by external operation can be provided with a very simple structure, A transmission rod is pivotally supported on an external operating member so as to be able to move up and down, and the upper end of the transmission rod is always provided with a transmission piece that is fitted into an engagement groove formed at the upper end of the vibrating rod. The upper end of the piece can be engaged with and detached from one of the inner blades constituting the shaving blade according to the vertical movement of the transmission rod, while the side surface of the transmission rod facing the shaving blade has a sharp edge. A fitting groove is formed that engages and disengages the drive pin provided on the movable blade for sliding, or in a reverse relationship, the drive pin and the fitting groove are engaged when the transmission rod is lowered, so that the vibrating rod is The power is transmitted to the sharpening blade via the transmission rod.

In short, the parts that serve as the power transmission switching mechanism are located at the upper end.
It has a transmission piece that is constantly engaged with the vibrating rod, and has a fitting groove or one drive pin on one side that transmits power to the sharpening blade, and the lower end is pivotally supported by an external operating member, and an external The main part is the transmission rod that is operated to move up and down from the shaving blade, and the power transmission to the shaving blade and the cutting part utilizes a spring for pushing up and driving the inner blade.It is a simple mechanism, and conventional parts can be used as is. A similar mechanism for the edge cutting blade can be simply constructed by simply providing a drive pin that engages and disengages with the fitting groove in the center of the edge movable blade, or in the opposite relationship, and is still functional. It has a very simple structure that can operate satisfactorily and reliably, has a small number of parts, and is easy to assemble. The features are very valuable.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front cross-sectional view showing a main part broken away, FIG. 2 is a side cross-sectional view showing a main part broken away, and FIG. 3 is a shaving blade 1. An explanatory diagram of the operation during driving,
FIG. 4 is an explanatory diagram of the operation when the edge cutting blade is driven, and FIG. 5 is an exploded perspective view of the constituent elements. 15...Transmission rod, 16...Transmission piece, 1
2... Engagement groove, 32... Inner blade for shaving, 34... Inner blade push-up spring, 9... Movable blade for edge cutting.

Claims (1)

[Claims] 1. A transmission rod is provided which is pivotally supported by an external operating member and moves up and down, and a transmission piece provided above the transmission rod is constantly engaged with an engagement groove formed at the upper end of the vibrating rod, and its tip is shaved. The inner blade push-up spring attached to the lower surface of the inner cutter can be engaged and detached, and when the transmission rod is lowered, the transmission piece is detached from the push-up spring, while the transmission rod is connected to the movable edge cutting blade. A vibrating electric razor that engages.