JPS5924303Y2 - electric razor - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of the electric razor.In particular, by regulating the position of the comb row formed at the edge of the fixed blade, it can be moved smoothly against the skin, and long hairs are reliably aligned. The present invention provides an electric shaver that can cut.

Conventionally, this type of electric razor for cutting long hair has a wide opening at the tip of the comb row of fixed blades in order to align long hair more reliably, and the tip directly presses the skin and uses a sharp tip to cut long hair. However, it has been improved in recent years because it easily hurts the skin, has poor slippage against the skin, and is easy to damage the tips of the comb rows if accidentally dropped on the floor. It is being done.

This improved structure has a thick guard member made of synthetic resin placed below the comb row of fixed blades, and a movable blade is positioned between the comb row and the tip of the guard member to protect the skin. has a structure in which the guard member makes pressure contact with the guard member, and in this case, it is difficult to make the long hair stand up with just the guard member, so the tip is made with multiple comb-like cuts and the skin is scratched with these comb-like cuts to make the long hair stand up. be.

However, in this case, the comb-shaped notches in the guard member are
It is made of synthetic resin, has a thick wall, and has a large cutting pitch for mechanical strength, so it cannot prevent the skin from coming into direct contact with the comb row of fixed blades. The size of each comb becomes too large, and the effect of raising the hair and guiding it to the fixed blades cannot be expected, and when used by someone who is not accustomed to using the comb, it may press too hard against the skin and cause long hair to grow. It had a tendency to fall asleep, making it difficult to use.

Therefore, this invention is equipped with a fixed blade with a comb row formed on its edge on the upper part of the main body case, and a movable blade that is pressed into contact with the lower surface of this fixed blade and is driven. In an electric shaver that cuts hair with a comb, a protrusion is provided on the side wall of the case that protrudes laterally along the row of combs, an upwardly inclined plane is provided on the upper surface of the protrusion, and the fixed The upper plane of the blade is inclined so as to be located approximately on an extension line of the above-mentioned inclined plane, and the tip of the comb row of the fixed blade intersects the above-mentioned extension line, so that the upper plane of the fixed blade is not interposed between the above-mentioned inclined plane and the upper plane of the fixed blade. By making the combs protrude slightly, the combs can be pressed against the skin in a flat plane, and when the combs protrude slightly from this plane, for example, the skin can be supported on a flat surface, and the combs come into contact with the skin, the skin can return freely. The comb rows that protrude within the elastic limit of the skin make it possible to protect the skin while standing up sleeping long hair to ensure reliable cutting.

This idea will be explained below with reference to the drawings.

In FIG. 1, a movable blade 4, which is crimped by a coil spring 3 to the lower surface of a fixed blade 2 fixed to a holder 1, is arranged so as to be able to reciprocate from side to side by rotation of an eccentric cam 5.

As shown in FIGS. 2 and 3, the movable blade 4 has comb-shaped cutting edges 6 and 7 on both sides, and a movable blade driver 9 having a pair of cylindrical half-shaped projecting walls 8 in the center. The drive element 9 has an elongated hole 10 in the center thereof that slides into contact with the eccentric cam 5, and the outer surface of the protruding wall 8 receives the upper end of the coil spring 3 with a slight force to determine the position of the coil spring 3. ing.

A recessed hole 14 is formed in the base 11 of the holder 1 and is concentric with the through hole 13 of the rotating shaft 12 of the eccentric cam 5, and the lower end of the coil spring 3 is fitted into the recessed hole 14 with a slight press fit for positioning.

Reference numeral 15 denotes long guide holes drilled on the left and right sides of the movable blade 4, into which guide pins 16 protruding from the holder 1 are fitted, and the holder 1 is removably fixed to the main body case 17 with a locking spring 18. .

The locking spring 18 has a U-shaped bent portion 19 at both ends, a square hole 20 at its base side, which engages with a locking protrusion 21 of the main body case 17, and a rotating shaft 12 at the center. A penetrating through hole 22 is provided, and a flange portion 23 whose peripheral edge is widened into a brim shape is provided.

Reference numeral 24 denotes a sponge-like bat attached to the bent portion 19 of the locking spring 18;
The engagement window 25 is closed to prevent hair debris from entering and to prevent the bent portion 19 from deforming.

A thin groove 2 is formed in the side wall of the main body case 17 and penetrates in the vertical direction.
6, and a guard member 27 is arranged to be vertically movable.

To explain this guard member 27 in detail, the guard member 27 is molded from ABS resin or polyacetal resin, and has a beak-shaped protrusion 28 formed on the upper part along the comb row and protruding laterally, The plate-like lower part has two protrusions 29, and a cutout is made between the protrusions 29 from the lower edge,
An enlarged elongated hole 30 is formed thereon.

The projections 29 are engaged with two inclined holes 32 of an operation plate 31 made of a stainless metal plate, and a bent piece 33 of the operation plate 31 is fitted into the enlarged elongated hole 30.

A square window 34 is formed between the inclined holes 32 of the operation plate 31, and an elastic hook portion 39 of a slide knob 36 passing through a slide hole 35 provided in the side wall of the main body case 17 is fitted.

Further, at the lower end of the operation plate 31, a leaf spring portion 37 with a bulged center portion is provided.
and a protrusion 38 at the center of the inner lower edge of the slide hole 35.
By slidingly contacting and riding up and deforming, a sense of moderation is provided when the operation plate 31 is slid.

Therefore, in order to incorporate this guard member 27 into the main body case 17, first insert the bent piece 33 of the operation plate 31 into the enlarged length (L30) of the guard member 27, and use this fitted state as a guide to lengthen the inclined length of the operation plate 31. The protrusion 29 of the guard member 27 is inserted into the hole 32 and integrated, and in this state, the wings 27a of the guard member 27 are inserted into the narrow groove 26 of the main body case 17 and pushed in from above while being guided.

Next, the elastic hook portion 39 of the slide knob 36 is inserted into the slide hole 35 of the main body case 17, and the hook portion 39 is engaged with the square window 34 of the operation plate 31.

If this continues, the operation plate 31 will wobble when sliding.
The bent piece 33 of the operation plate 31 is inserted into the through hole 13 of the main body case 17.
When the locking spring 18 is attached to the step portion 40 formed on the side of the main body case 17 from above, the flange portion 23 of the locking spring 18 is attached to the bent piece 33 as shown in FIG.
The bent piece 33 is placed on the upper surface of the flange portion 23 and the stepped portion 4.
0, the slide is restricted, and it is assembled without using any fixing means such as screws.

Therefore, the guard member 27 holds the slide knob 36 in the first position.
When the operation plate 31 is moved in the direction of the arrow a in the figure, the operation plate 31 is also moved, and at this time, the guard member 27 is opened by the two inclined holes 32.
The protrusion 29 gradually rises, and eventually the beak-like protrusion 28 of the guard member 27 rises.

This beak-like projection piece 28 protrudes in an arc shape as shown in FIG. The upper plane 42 of the fixed blade 2 is positioned at an angle.

A comb row 43 is formed at the edge of the fixed blade 2, and the hair is cut by the combing force 6 of the movable blade 4. plane 4
It is made to protrude slightly so as to intersect with the extension line connecting 2.

Therefore, as shown in Figure 4, this electric shaver can be used to
If the skin H is used by pressing it, the skin H will be stretched along the extension line K, but at this time, the comb row 43 of the fixed blade 2 protrudes slightly, so that the hair that has fallen down will also be erected, and the movable blade 4 It is guided to the position of combing force 6 and cut.

In this case, the skin H is slightly deformed by the slightly protruding comb row 43;
If the skin H is set to protrude within its own elastic deformation limit, the skin H can return freely, and the skin H will not be pierced by the tip of the comb row 43 or abnormally scratched, and the hair-raising effect can be improved. can.

The amount of protrusion of the comb row 43 for this purpose is preferably 0.2 to 0.8 mm, and this depends on the skin condition of the user.In other words, people with soft skin should protrude about 0.2 mm, and people with hard skin should have about 0.8 mm.
It is sufficient to set about m, and in order to satisfy all of these, the operation plate 31 may be configured to have a plurality of moderations and to be raised in multiple stages.

In addition, on the upper surface of the guard member 27, the comb row 4 of the fixed blade 2 is provided.
Along the third side, the hair receiver is provided with a recess 44 and a shielding wall 45 so that the inside of the main body case 17 cannot be seen.

Further, 46 is a connecting cam fixed to the lower end of the rotating shaft 12,
Connecting the main body case 17 to the clutch 47 protruding from the upper end of the drive case A with the main body case 17 attached to the upper end of the drive case A,
Driven.

Of course, the drive case A may be formed integrally with the main body case 17.

As described above, according to this invention, the skin H is pressed flatly over a wide range by the inclined plane 41 of the guard member 27 and the inclined upper plane 42 of the fixed blade 2, making the skin tense. The pressure can be weakened, and this side plane 4
Since the skin H easily bulges and protrudes into the gap between 1 and 2, and the comb row 43 of the fixed blade 2 slightly protrudes from this bulging position, the comb row 43 is not pressed against the skin H more than necessary. It is possible to raise cutting efficiency by moving smoothly and reliably raising the fluff.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of this invention, Fig. 2 is a front partial sectional view of the same embodiment, Fig. 3 is a side partial sectional view of the same embodiment, and Fig. 4 is a partial sectional view of the same embodiment. It is an explanatory view of the main part. 2...Fixed blade, 4...Movable blade, 6...
... Combination power, 17 ... Main body case, 28
... Protruding piece, 41 ... Inclined plane, 42.
...Upper plane, 43...Comb row, K...
...extension line.

Claims (1)

[Scope of utility model registration request] The upper part of the main body case 17 is provided with a fixed blade 2 having a comb row 43 formed on its edge, and a movable blade 4 that is pressed against the lower surface of the fixed blade 2 and driven. power 6
In an electric shaver that cuts hair with a razor, a protrusion 28 is provided on the side wall of the case 17 to protrude laterally along the comb row 43, and an upwardly inclined plane 41 is provided on the upper surface of the protrusion 28. At the same time, the upper plane 42 of the fixed blade 2 is inclined so as to be located substantially above the extension line of the above-mentioned inclined plane 41, and the upper plane 42 of the fixed blade 2 is inclined so as to be positioned above the extension line of the above-mentioned inclined plane 41, and the upper plane 42 of the fixed blade 2 is inclined so that the tip of the comb row 43 of the fixed blade 2 intersects with the extension line. 41 and the upper plane 4 of the fixed blade 2
An electric razor that protrudes slightly from between the two.