JPH0857168A - Reciprocal safety razor - Google Patents

Abstract

PURPOSE: To smoothly follow the uneven face and curved face of skin to improve the cutting performance, by providing the swing center at the top or the nearby position thereof of a cutter blade block and supporting the block so as to freely swing it around the swing center in the direction of crossing at right angles with the reciprocal direction. CONSTITUTION: In the cutter block 3a of a safety razor, the inner cutter 6 slides reciprocally against the outer cutter 5 to cut out beards guided in the cutter holes of the outer cutter 5. In this case, the swing shaft 15 is horizontally and protrusively provided at the outer cutter frame 7 of the cutter block 3a, so as to face the outside at both ends of the reciprocal direction of the inner blade 6. That is, the swing shaft 15 is provided at the position corresponding to the top 16 of the outer cutter 5 and rotatably inserted in the shaft hole 17a at the upper end of the swing base 17 to freely rotate the cutter block 3a around the swing shaft 15. The swing base 17 is set to be vertically movable along the guide groove 2a provided in the upper frame 2 and pushed upward by a spring 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reciprocating electric shaver which cuts waste hair by following the skin by sliding a blade to reciprocate the blade.

[0002]

2. Description of the Related Art An example of this type of electric shaver is disclosed in Japanese Unexamined Patent Publication No. 4-44793. This is composed of an outer blade and a rotary inner blade that is in sliding contact with the outer blade, and the rotary shaft b of the rotary inner blade is rotatably attached to the electric razor body c to swing the cutting blade block a. It's free. However, in such a conventional example, since the center of the swing is below the top of the cutting blade, the electric razor body c is held and the cutting blade is moved to the skin d as shown in FIG.
When cutting waste hair by touching against the electric shaver body c
Of the cutting edge due to the rotational couple due to the frictional force with the skin d (in the direction of arrow f) as it advances in the direction of arrow e
However, there was a problem in that the hair swings in the direction opposite to the advancing direction and does not come into contact with the skin d at the optimum top portion g, so that the waste hair cannot be optimally cut.

As another conventional example, Japanese Patent Laid-Open No. 62-227.
As shown in Japanese Laid-Open Patent Publication No. 395, a shirring head i in which two cutting edges h are connected to each other is arranged in an electric razor body,
There is one in which the shirring head i is allowed to swing around the midpoint position of the surface connecting the two cutting edges h so as to follow the inclined surface of the skin d.
In addition to the former structure as shown in Japanese Patent No. 53363, there is also a structure in which the center of the swing is received so as to be vertically movable so as to follow the vertical movement of the skin d. In these cases, the top portion g of the cutting edge h comes into contact with the inclined surface of the skin d, and particularly in the latter case, it follows up and down movement of the skin d, but there are irregularities j of the skin d as shown in FIG. There is a problem that the top part g of the cutting edge h having the best sharpness does not contact the curved surface. In particular, the top g does not follow small irregularities on the skin d.

As another conventional example, as shown in German Patent Publication No. 4244164, Japanese Unexamined Patent Publication No. 4-58985, and Japanese Unexamined Patent Publication No. 5-188, a plurality of cutting blade portions float up and down to cut. There is also one in which each cutting edge swings independently or in conjunction with the float above and below the blade, but the swing angle of the cutting edge is determined by the float amount or pressing force of the cutting edge. Therefore, there is a problem that the top of the cutting edge portion, which has the best sharpness, does not contact the skin by following the curved surface of the skin.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide the contour of the skin regardless of whether the skin has large or small irregularities or is rounded. The top of the sharpest cutting edge follows the curved surface to provide a reciprocating electric razor that can cut waste hair quickly and shortly, and another purpose is to follow the curved surface of the skin up and down. It is to provide a reciprocating electric razor that can follow the unevenness without moving the device up and down with the float of the device, leave shaving without leaving the skin, and cut hair quickly and shortly, and further. The purpose of is to provide a reciprocating electric razor that can shave smoothly on the skin without getting caught by the unevenness of the skin as the device progresses.

[0006]

In order to achieve the above object, the reciprocating electric shaver of the present invention is a reciprocating electric shaver which cuts waste hair by slidingly contacting a blade and reciprocatingly driving the blade. A swing center is provided at or near the top of the cutting blade, and the cutting blade block is swingably supported about this swing center in a direction orthogonal to the direction in which the blade is reciprocally driven.

It is also preferable that the swing base for supporting the swing center can be floated vertically.

[0008]

According to the above construction, since the cutting blade block swings around the top of the cutting blade or in the vicinity of the top of the cutting blade, the sharp cutting edge of the cutting blade is surely attached to the skin even if the skin has irregularities or rounded edges. The waste hair can be cut by contacting it and the waste hair can be cut quickly. Further, the cutting blade block floats up and down to follow unevenness and curved surface of the skin without moving the device up and down, and the cutting hair can be quickly cut without the cutting blade separating from the skin.

[0009]

First, the first embodiment shown in FIGS. 1 to 7 will be described. A drive source such as a motor is internally provided in the electric razor body 1, an upper frame 2 is attached to an upper end of the electric razor body 1, and a cutting blade block 3 is arranged on the upper frame 2. The upper frame 2 is detachably attached to the electric razor body 1 by a hook 9. A power switch 4 is provided on a side portion of the electric razor body 1, and a reciprocating drive element 10 is projected from the upper surface of the electric razor body 1.

In this embodiment, the cutting blade block 3 is a cutting blade block 3a for cutting short hair.
Reference numeral a is composed of an outer blade 5, an inner blade 6, an outer blade frame 7, a support base 8 and the like. The outer blade 5 has a large number of blade holes, is bent into a semi-cylindrical shape, and is attached to the outer blade frame 7. When the inner blade 6 slides back and forth with respect to the outer blade 5, the outer blade 5 is introduced into the blade hole of the outer blade 5. It is designed to cut hair that is cut. The inner blade 6 has a large number of blade plates 6b mounted on the inner blade base 6a and a pair of leg pieces 6c hanging downward from the center of the inner blade base 6a in the longitudinal direction. Outer blade frame 7
The support base 8 is arranged so as to close the opening at the lower end of the outer cutter frame 7 with the inner cutter 6 installed therein, and the projections 11 provided at both ends in the longitudinal direction of the support cutter 8 are provided on the inner surface of the outer cutter frame 7. The support base 8 is detachably attached by being locked to. An insertion hole 12 is formed in the center of the support base 8, and the leg piece 6c of the inner blade 6 is inserted into the insertion hole 12. A spring 13 such as a coil spring is interposed between the inner blade base 6a of the inner blade 6 and the support 8.
The inner blade 6 is elastically urged so as to come into close contact with the outer blade 5.

A projecting piece 14 projecting above the link joint 14.
a is inserted between the leg pieces 6c of the inner blade 6, and the leg pieces 6c
The link joint 14 is rotatably connected in a direction orthogonal to the sliding direction of the inner blade 6 by mounting the shaft 36 in the shaft hole 6d and the shaft hole 14b of the protruding piece 14a. Link joint 1
4 is provided with a pair of guide pieces 14c at a distance, and a shaft 14d is provided between the pair of guide pieces 14c. The driver 1 is provided between the guide pieces 14c of the link joint 14.
0 is inserted, and the shaft 14d of the link joint 14 is vertically movably engaged with the engagement groove 10a of the driver 10.

On the outer blade frame 7 of the cutting blade block 3a, swing shafts 15 are projected so as to horizontally project outward at positions of both ends of the inner blade 6 in the reciprocating direction. The swing shaft 15 is provided at a position corresponding to the top 16 of the outer blade 5. The swing shaft 15 has a shaft hole 17 at the upper end of the swing base 17.
It is rotatably inserted in a, and the cutting blade block 3a rotates about the swing shaft 15. The swing base 17 is mounted so as to be vertically movable along a guide groove 2a provided on the upper frame 2, and a protrusion 17b protruding outward is provided at a lower end of the swing base 17, and the protrusion 17b is provided with the protrusion 17b. The swing base 17 is prevented from slipping upward. The swing base 17 is provided with a spring accommodating recess 17c, and a spring 18 such as a coil spring is accommodated in the spring accommodating recess 17c, and the lower end of the spring 18 is inserted into the spring receiving hole 2b. Is urged so that it projects upward.

The reciprocating electric shaver constructed as described above has a swing shaft 15 in which the cutting blade block 3a is located at a position corresponding to the top 16 in a direction orthogonal to the sliding direction of the inner blade 6.
And the cutting blade block 3a floats up and down freely (arrow A indicates a swing, arrow A indicates a float). FIG. 7 shows a state in which waste hair of the skin 20 is cut, and even if the skin 20 has a curved surface having irregularities, swing or float so that the top 16 of the outer blade 5 surely contacts the skin 20, It is good for the skin and can effectively cut short waste hair.

Next, a second embodiment shown in FIGS. 8 to 12 will be described. In the case of this embodiment, the cutting blade block 3 is a trimming blade block 3b. The cutting blade block 3b includes a cover 21, a leaf spring 22, a movable blade 23, a fixed blade 24, a support base 25, a trimmer driver 26, and the like. The support base 25 has comb-shaped portions 25a for adjusting and raising hair in the longitudinal direction, a through hole 25b in the center of the support base 25, and support bases on both sides of the through hole 25b. A protrusion 25 c is provided on the upper surface of 25. Fixed blade 24
Has a comb tooth 24a in the longitudinal direction, a through hole 24b at the center of the fixed blade 25, and mounting holes 24c formed at both sides of the through hole 24b. The fixed blade 2 is provided on the support base 25.
4, the fixed blade 24 is attached to the support base 25 by fitting and fixing the protrusion 25c in the attachment hole 24c. The movable blade 23 has a cutting edge 23a in the longitudinal direction, a connecting hole 23b in the center, and slide holes 23c on both sides of the connecting hole 23b. The movable blade 23 is slidably mounted on the fixed blade 24 in the longitudinal direction, and the projection 25c is loosely fitted in the slide hole 23c.

A cover 21 is attached to the movable blade 23 via a leaf spring 22, and the cover 21 is joined to a support base 25 to be integrated. A drive shaft 26a is provided on the upper portion of the trimmer driver 26, and the drive shaft 26a is slidably inserted in the through hole 25b of the support base 25 and the through hole 24b of the fixed blade 24 in the longitudinal direction. The upper end of 26a is fitted into the connecting hole 23b of the movable blade 23 and connected to the movable blade 23, and the movable blade 23 can be reciprocally driven by reciprocally driving the trimmer driver 26.

A pair of leg pieces 26b are provided below the trimmer driver 26, and the link joint 1 is provided between the leg pieces 26b.
4 is inserted, and the shaft 36 is inserted into the shaft hole 26c of the leg piece 26b and the shaft hole 14b of the link joint 14 to rotate the link joint 14 in the direction orthogonal to the sliding direction of the movable blade 23. It is movably connected. The link joint 14 is provided with a pair of guide pieces 14c spaced apart from each other, and a shaft 14d is provided between the pair of guide pieces 14c. The driver element 10 is inserted between the guide pieces 14c of the link joint 14, and the shaft 14d of the link joint 14 is vertically movably engaged with the engagement groove 10a of the driver element 10.

Swing shafts 15 are provided so as to project horizontally at both ends of the cover 21 of the cutting blade block 3b in the longitudinal direction. The swing shaft 15 is provided at a position corresponding to the position where the comb teeth 23a of the movable blade 23 and the comb teeth 24a of the fixed blade 24 are in sliding contact. The swing shaft 15 is rotatably inserted into a shaft hole 17a at the upper end of the swing base 17, and the cutting blade block 3b is rotated around the swing shaft 15. As in the first embodiment, the swing base 17 is mounted so as to be vertically movable along the guide groove 2a provided in the upper frame 2, and is freely floatable by a spring 18.

In the reciprocating electric shaver constructed as described above, the cutting blade block 3b swings about the swing shaft 15 in a direction orthogonal to the sliding direction of the movable blade 23, and the cutting blade block 3b floats up and down freely. To do. FIG. 12 shows a state in which waste hair of the skin 20 is cut, and even if the skin 20 is a curved surface having irregularities, the comb teeth 23a of the movable blade 23 and the comb teeth 24a of the fixed blade 24 surely contact the skin 20. It swings and floats like it does, and it feels good on the skin and can cut waste hair efficiently and shortly.

Next, a third embodiment shown in FIGS. 13 to 18 will be described. In the case of this embodiment, the cutting blade block 3 is a cutting blade block 3c for slit cutting. The cutting blade block 3c includes a fixed blade 28, a movable blade 29, a side support base 30, a lower support base 31, and a spring 32 such as a coil spring. The fixed blade 28 has a substantially U-shaped cross section, has a plurality of slit holes 28a arranged in a row at the upper end thereof, and the mounting holes 2 are provided above and below the side portions of the fixed blade 28.
8b and 28c are perforated. The movable blade 29 has a large number of slit blades 29a arranged in an upper portion thereof, and a shaft hole 29c is formed at the lower end of a leg piece 29b hanging from the center of the movable blade 29. The movable blade 29 is inserted into the fixed blade 28, and the slit blade 29a is brought into sliding contact with the lower surface side of the slit hole 28a group. The side support base 30 is fitted into the side opening of the fixed blade 28, and is attached by fitting a protrusion into the attachment hole 28b. The lower support base 31 is fitted in the lower opening of the fixed blade 28, and is mounted by fitting the protrusion 31a into the mounting hole 28c. Springs 32 are internally provided on both sides of the fixed blade 28. The springs 32 are interposed between the movable blade 29 and the lower support base 31, and the spring 32 biases the movable blade 29 upward. .

A pair of projecting pieces 14 are provided on the upper part of the link joint 14.
a is projected so as to project upward, and a pair of projecting pieces 1
The leg piece 29b of the movable blade 29 is inserted between 4a, and the shaft 36 is inserted in the shaft hole 29c of the leg piece 29b and the shaft hole 14b of the projecting piece 14a.
The link joint 14 is rotatably connected in a direction orthogonal to the sliding direction of the movable blade 29 by mounting.
Further, as in the first embodiment, the link joint 14 is provided with a pair of guide pieces 14c at intervals, and a shaft 14d is provided between the pair of guide pieces 14c. The driver 10 is inserted between the guide pieces 14c of the link joint 14,
The shaft 14d of the link joint 14 is fitted in the engaging groove 10a of the driver 10.
Is engaged so that it can move up and down.

On the side support base 30 of the cutting blade block 3c, swing shafts 15 are provided so as to horizontally project at both ends in the longitudinal direction. This swing shaft 15 is a fixed blade 2
It is provided at a position corresponding to the top portion 16 of 8. The swing shaft 15 is rotatably inserted into a shaft hole 17a at the upper end of the swing base 17, and the cutting blade block 3c is rotated around the swing shaft 15. As in the first embodiment, the swing base 17 is mounted so as to be vertically movable along the guide groove 2a provided in the upper frame 2, and is freely floatable by a spring 18.

In the reciprocating electric shaver constructed as described above, the cutting blade block 3c swings about the swing shaft 15 in the direction orthogonal to the sliding direction of the movable blade 29, and the cutting blade block 3c floats up and down freely. To do. FIG. 18 shows a state in which waste hair of the skin 20 is cut, and even if the skin 20 is a curved surface having irregularities, the top 16 of the fixed blade 28 is the skin 2
It swings or floats so as to make sure contact with 0, and it is possible to cut waste hair efficiently and efficiently on the skin.

Next, a fourth embodiment shown in FIGS. 19 to 24 will be described. In this embodiment, two cutting blade blocks 3a shown in the first embodiment are arranged side by side. The cutting blade block 3a is formed in the same structure as in the first embodiment,
The swing shaft 15 provided at a position corresponding to the top 16 of the is swingable. The swing shafts 15 of the respective cutting blade blocks 3a are swingably attached to different swing bases 17, respectively, and the respective cutting blade blocks 3a swing independently and float freely up and down. On the upper surface of the electric razor body 1, two driving elements 10 are provided so as to drive the two cutting edge blocks 3a, and each driving element 10 is reciprocally driven in opposite directions. And each driver element 10 as in the first embodiment.
Through the link joint 14 to the inner blade 6 of each cutting blade block 3a
, So that the inner blade 6 can be reciprocally driven in opposite directions.

In the reciprocating electric shaver constructed as described above, the two cutting blade blocks 3a independently swing around the swing shaft 15 in the direction orthogonal to the sliding direction of the inner blade 6 and the cutting blade blocks 3a. 3a independently floats up and down freely. FIG. 24 shows a state in which waste hair of the skin 20 is cut. Even if the skin 20 has a curved surface having irregularities, a swing or a float so that the tops 16 of the respective cutting edge blocks 3a surely contact the skin 20. However, it is good for the skin and can effectively cut short waste hair.

Next, a fifth embodiment shown in FIGS. 25 to 29 will be described. This embodiment is the cutting blade block 3 of the first embodiment.
2a and two cutting edge blocks 3b of the second embodiment are arranged side by side. The cutting blade block 3a can swing about a swing shaft 15 provided at a position corresponding to the top portion 16, and the cutting blade block 3b has comb teeth 23 of the top portion 16.
The swing shaft 15 provided at positions corresponding to a and 24a can swing freely. Cutting blade block 3a, 3
The swing shafts 15b of b are attached to the respective swing bases 17 so as to be freely swingable, and each of the cutting blade blocks 3a and 3b is attached.
Each swings independently and can float freely up and down. On the upper surface of the electric razor body 1, there are two driving elements 1 for driving the two cutting blade blocks 3a and 3b.
No. 0 is provided so that each driver element 10 is reciprocally driven in opposite directions, and each cutting element block 3 is connected to each driver element 10 via the link joint 14 as in the above embodiment.
By connecting the inner blades 6 and the trimmer driver 26 of a and 3b, the inner blade 6 and the trimmer driver 26 can be reciprocated in opposite directions.

In the reciprocating electric shaver constructed as described above, the two cutting blade blocks 3a, 3b independently swing around the swing shaft 15 in the direction orthogonal to the sliding direction of the inner blade 6 and cut. The blade blocks 3a and 3b independently float freely up and down. FIG. 29 shows a state in which waste hair of the skin 20 is cut, and even if the skin 20 is a curved surface having irregularities, the tops 16 of the respective cutting edge blocks 3a, 3b are the skin 20.
Swing or float so that it can make sure contact with your skin, and it is possible to cut waste hair efficiently and efficiently on the skin. Further, in the case of this embodiment, the cutting blade block 3b for trimmer is arranged in front of the direction of movement of the razor, so that the cutting blade block 3b efficiently cuts long hairs and the cutting blade block for cutting short hairs. Three
A can be cut efficiently (faster) and shorter with a.

Next, a sixth embodiment shown in FIGS. 30 to 35 will be described. In this embodiment, the cutting blade block 3a of the first embodiment and the cutting blade block 3c of the third embodiment are arranged in parallel, and one cutting blade block is provided between the two cutting blade blocks 3a. 3c is arranged. The cutting blade block 3a and the cutting blade block 3c can swing around a swing shaft 15 provided at a position corresponding to the top portion 16. The swing shafts 15 of the cutting blade blocks 3a and 3c are swingably attached to different swing bases 17, respectively, and the cutting blade blocks 3a and 3c swing independently of each other and are vertically floatable. On the upper surface of the electric razor body 1, three driving elements 10 are provided in a protruding manner to drive the three cutting blade blocks 3a and 3c, and the driving element 10 in the center is provided.
On the other hand, the driver elements 10 on both sides are reciprocally driven in opposite directions. That is, the driver 10 that drives the cutting blade block 3a and the driver 10 that drives the cutting blade block 3c are reciprocally driven in opposite directions. Similar to the above-described embodiment, each drive element 10 has a link joint 14
Through the inner blade 6 of each cutting blade block 3a, 3c and the movable blade 2
9, the inner blade 6 and the movable blade 29 can be reciprocally driven in opposite directions.

In the reciprocating electric shaver constructed as described above, the three cutting blade blocks 3a and 3c are the inner blade 6 and the movable blade 29.
And the cutting blade blocks 3a and 3c while swinging independently about the swing shaft 15 in the direction orthogonal to the sliding direction of the cutting blade blocks 3a and 3c.
Float independently up and down. Figure 35 shows skin 20
In the state in which the waste hair is cut, and even if the skin 20 has a curved surface having irregularities, the skin 16 is swung or floated so that the tops 16 of the cutting blade blocks 3a and 3c surely contact the skin 20, You can cut waste hair efficiently and efficiently. Further, in the case of the present embodiment, since the cutting blade block 3a having the kamaboko-shaped outer blades 5 on both sides is arranged, the movement of the instrument when shaving is smooth, and the slit of the central cutting blade block 3c is provided. The blade cuts long hair more efficiently (faster). If only the structure in which the central cutting blade block 3c is floated up and down and the cutting blade blocks 3a on both sides are made to swing and float in the above-mentioned embodiment, a direction orthogonal to the longitudinal direction of the cutting blade blocks 3a and 3c is obtained. (The width C of the upper frame 2 and the width of the electric razor body 1) can be reduced.

Next, the swing center of the cutting blade block 3 will be described. 36 (a) shows that the swing center A is provided above the top 16 of the cutting blade block 3.
(B) shows the swing center A at the top 16 of the cutting block 3.
36C, the swing center A is provided below the top 16 of the cutting blade block 3.
In FIG. 36, the arrow B indicates the traveling direction of the instrument, and C indicates the width of the upper frame 2. As shown in FIG. 36 (a), when the swing center A is provided so that the virtual center is on the skin 20 side, the top 16 of the cutting blade block 3 hits the skin 20 vertically and comes into contact therewith, but the cutting edge is good. There is a problem that the block 3 moves in the traveling direction of the device, the width C of the upper frame 2 becomes wide, and the device becomes large. When the swing center A is provided at the top 16 of the cutting block 3 as shown in FIG. 36 (b), the top 16 of the cutting block 3 hits the skin 20 vertically and comes into contact therewith, resulting in good sharpness and cutting. The upper frame 2 without the blade block 3 moving in the traveling direction of the instrument
The width C may be narrow. As shown in FIG. 36C, when the swing center A is located below the apex 16, the apex 16 swings so as not to hit the skin 20, resulting in poor sharpness. It is most preferable to position the swing center A on the apex 16 as shown in FIG. 36B, but as shown in FIG. If the upper end of is not projected above the apex 16, the sharpness is good and the object of the present invention can be achieved.

FIG. 37 shows a structure in which the center of the swing is the apex 16 and the upper end of the swing base 17 is lower than the apex 16 of the outer blade 5 of the cutting blade block 3a. In the case of the present embodiment, an arcuate projecting piece 34 centering on the top 16 is provided on the outer blade frame 7, and the top 16 of the swing base 17 is provided.
A circular arc-shaped sliding groove 35 centered at is formed by perforating the projecting piece 34 into the sliding groove 35 so that the top 16 can swing about the swing center A. In this case, there is no adverse effect that the upper end of the swing base 17 projects upward and hits the skin 20.

In the embodiment shown in FIG. 38, the outer blade 5 of the cutting blade block 3a is provided with a radius R so that the central portion of the outer blade 5 projects upward from both sides of the inner blade 6 in the reciprocating sliding direction. A virtual swing center is provided at the center of the top portion 16 of the blade 5 in the longitudinal direction, so that the waste hair can be cut easily following the skin 20. Further, FIG. 39 shows that when both sides of the cutting blade block 3 are independently floated, the cutting blade block 3
Indicates the corresponding structure. As an example for dealing with this, there is a method in which the shaft hole 17a of the swing base 17 is made larger than the diameter of the swing shaft 15 or the shaft hole 17a is elongated in the vertical direction. As another example, FIG.
As shown in (b), the diameter of the shaft hole 14b of the projecting piece 14a of the link joint 14 is made larger than the diameter of the shaft 36, or the shaft hole 14b
Has a long long hole at the top and bottom. In this case, spherical bosses 37 are provided on both sides of the protruding piece 14a. When the cutting blade block 3 can be freely tilted in this way, the followability to the curved surface of the skin 20 is improved, the adhesion to the skin 20 is improved, and shaving can be performed shorter. The structure of FIG. 39 has the above first to sixth parts.
The same can be applied to the embodiment.

[0032]

As described above, according to the present invention, a swing center is provided at or near the top of the cutting edge of the cutting block, and a direction orthogonal to the direction in which the blade is reciprocally driven about this swing center. Since it is swingably supported, the top of the cut is always in contact with the curved surface of the skin,
It is capable of cutting the waste hair smoothly and shortly without leaving a shave, and it is possible to reduce the width and reduce the size because the cutting block swings without moving in the advancing direction of the device.

When the swing base for supporting the center of the swing is allowed to float freely in the vertical direction as in the second aspect of the present invention, the upper and lower ridges of the skin are contacted and followed without leaving the skin to further shave. It is good for touching the skin without leaving anything and can cut waste hair shortly. Further, when the cutting blade block is formed into a block including the spring as in the invention according to claims 3 to 5, there is no resistance in the swing operation, and the swing can be performed smoothly.

Further, as in the invention described in claim 6, two or more cutting blade blocks are provided, and each cutting blade block can independently swing about the swing center at or near the top of the cutting blade block. In addition, if each cutting edge block is independently floatable, the cutting edges of two or more cutting edge blocks follow the curved surface of the skin, and the top with the best sharpness is always in contact with each cutting edge block. Since the blades work together to follow the skin, the waste hair is shaved short and there is no shaving left.

Further, as in the invention according to claim 7, three or more cutting blade blocks are provided, each cutting blade block can be independently floated up and down, and the cutting blade blocks located on both sides are cut blade blocks. If you can freely swing around the center of the swing or the swing center near the top, you can shave waste hair shortly without leaving shaving with three or more cutting blade blocks, and of course, cutting blades other than the cutting blade blocks on both sides. The block does not swing and the width can be narrowed to achieve miniaturization.

According to the invention of claim 8, the cutting blade of the cutting blade block has an arc shape in the reciprocating direction of the cutting blade,
When the center of the swing of the cutting blade block is located at the top of the arc-shaped portion, the top of the cutting blade block is always in contact with the curved surface of the skin, and the waste hair can be cut smoothly without being left unshaved. Further, when the swing fulcrums at both ends in the reciprocating direction of the cutting blade of the cutting blade block can be independently floated as in the invention according to claim 9, the cutting blade is more surely contacted along the curved surface of the skin. Thus, the waste hair can be shaved more smoothly.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the main part of the same as seen from the front.

FIG. 3 is an exploded perspective view of the above cutting blade block.

FIG. 4 is an exploded perspective view of the upper frame and the electric razor body of the above.

FIG. 5 is a cross-sectional view of the main part of the same as seen from the side surface.

FIG. 6 is a cross-sectional view of a main part of the above when viewed from a side in an operating state.

FIG. 7 is a cross-sectional view illustrating a state of shaving the above hair.

FIG. 8 is a perspective view showing an entire second embodiment of the present invention.

FIG. 9 is an exploded perspective view of the above cutting blade block.

FIG. 10 is a cross-sectional view of the main part of the same as seen from the side surface.

FIG. 11 is a cross-sectional view of a main part of the above when viewed from the side in an operating state.

FIG. 12 is a cross-sectional view illustrating a state of shaving the above hair.

FIG. 13 is a perspective view showing an entire third embodiment of the present invention.

FIG. 14 is a cross-sectional view of the main part of the same as seen from the front.

FIG. 15 is an exploded perspective view of the above cutting blade block.

FIG. 16 is a cross-sectional view of the main part of the same as seen from the side surface.

FIG. 17 is a cross-sectional view of a main part of the above when viewed from the side in an operating state.

FIG. 18 is a cross-sectional view illustrating a state of shaving the above hair.

FIG. 19 is a perspective view showing the whole of a fourth embodiment of the present invention.

FIG. 20 is an exploded perspective view of the above cutting blade block.

FIG. 21 is an exploded perspective view of the upper frame and the electric razor body of the above.

FIG. 22 is a cross-sectional view of the main part of the same as seen from the side surface.

FIG. 23 is a cross-sectional view of the main part of the above when viewed from the side in an operating state.

FIG. 24 is a cross-sectional view illustrating a state of shaving the above hair.

FIG. 25 is a perspective view showing an entire fifth embodiment of the present invention.

FIG. 26 is an exploded perspective view of the above cutting blade block.

FIG. 27 is a cross-sectional view of the main part of the same as seen from the side surface.

FIG. 28 is a cross-sectional view of a main part of the above when viewed from the side in an operating state.

FIG. 29 is a cross-sectional view illustrating a state of shaving the above hair.

FIG. 30 is a perspective view showing an entire sixth embodiment of the present invention.

FIG. 31 is an exploded perspective view of the above cutting blade block.

FIG. 32 is an exploded perspective view of the upper frame and the electric razor body of the above.

FIG. 33 is a cross-sectional view of the main part of the same as seen from the side surface.

FIG. 34 is a cross-sectional view of a main part of the above when viewed from the side in an operating state.

FIG. 35 is a cross-sectional view illustrating a state of shaving the above hair.

FIG. 36 is an explanatory diagram illustrating a swing center of the above.

FIG. 37 shows another embodiment of the above, in which (a) is a schematic side view and (b) is a schematic perspective view.

FIG. 38 is an exploded view for explaining still another embodiment of the same.

FIG. 39 is a view for explaining still another embodiment of the above,
3A is a cross-sectional view seen from the front, and FIG. 1B is a perspective view of a main part.

FIG. 40 is an explanatory diagram illustrating a problem of a conventional example.

FIG. 41 is an explanatory diagram illustrating a problem of another conventional example.

[Explanation of symbols]

 1 Electric Razor Main Body 2 Upper Frame 3 Cutting Blade Block 5 Outer Blade 6 Inner Blade 7 Outer Blade Frame 8 Support Base 13 Spring 15 Swing Shaft 16 Top 17 Swing Base 18 Spring 22 Leaf Spring 23 Movable Blade 24 Fixed Blade 25 Support Base Platform 28 Fixed blade 29 Movable blade 30 Side support base 31 Lower support base 32 Spring

Claims (9)

[Claims] 1. A reciprocating electric razor for cutting waste hair by slidingly contacting a blade and reciprocatingly driving the blade, wherein a swing center is provided at or near the top of the cutting edge of a cutting block and the swing center is provided. A reciprocating electric razor, wherein the cutting blade block is swingably supported in a direction orthogonal to the direction in which the blade is reciprocally driven. 2. A reciprocating electric shaver according to claim 1, wherein a swing base supporting a swing center is floatable up and down. 3. A cutting blade for cutting short hair, which comprises an outer blade having a large number of blade holes and an inner blade that slides on the inner surface of the outer blade,
The inner blade is pressed against the outer blade by the spring received by the support base,
The reciprocating electric shaver according to claim 1 or 2, wherein the outer blade is supported by an outer blade frame provided integrally with the support base to form a cutting blade block. 4. The cutting blade is a trimmer blade for cutting long hair, which is a comb-shaped fixed blade and a movable blade, and is provided with a support base for supporting the fixed blade and the movable blade, and a spring for pressing the movable blade on the fixed blade. The reciprocating electric shaver according to claim 1 or 2, wherein a cutting blade block is formed. 5. The cutting blade is a slit blade composed of a slit-shaped fixed blade and a movable blade, and the cutting blade block is provided with a support base for supporting the fixed blade and the movable blade, and a spring for pressing the movable blade on the fixed blade. The reciprocating electric shaver according to claim 1 or 2, wherein the reciprocating electric shaver is configured. 6. Two or more cutting edge blocks are provided, and each cutting edge block is independently swingable around a swing center near or at the top of the cutting edge block, and each cutting edge block is independent. The reciprocating electric razor according to claim 1 or 2, wherein the reciprocating electric razor is floatable. 7. A cutting center is provided with three or more cutting edge blocks, each of the cutting edge blocks can be independently floated up and down, and the cutting edge blocks located on both sides are a swing center of the cutting edge block or a swing center near the top. The reciprocating electric razor according to claim 1 or 2, wherein the reciprocating electric razor is configured to be swingable around the. 8. The cutting blade of the cutting blade block has a circular arc shape in the reciprocating direction of the cutting blade, and the center of swing of the cutting blade block is located at the top of the circular arc portion. The reciprocating electric shaver according to claim 1, 2 or 3, or 4. 9. The swing fulcrums at both ends of the cutting blade block in the reciprocating direction of the cutting blade can be floated independently of each other, respectively. Reciprocating electric razor as described.