WO2013149497A2

WO2013149497A2 - Electric shaver head device

Info

Publication number: WO2013149497A2
Application number: PCT/CN2013/000357
Authority: WO
Inventors: 黄勇辉
Original assignee: Huang Yonghui
Priority date: 2012-04-06
Filing date: 2013-03-28
Publication date: 2013-10-10
Also published as: CN202878363U; WO2013149497A3

Abstract

An electric shaver head device, comprising a moving blade (2), a non-moving blade (1), a base seat (4), a moving blade seat (3), and a compression spring (5). The moving blade (2) and the non-moving blade (1) are in contact with a spherical surface. An inclined installation hole or shaft is disposed on the moving blade seat (3). The moving blade (2) is installed on the moving blade seat (3) via the corresponding shaft or the hole structure. The moving blade seat (3) is disposed on the base seat (4). The non-moving blade (1) is disposed on the base seat (4). The compression spring (5) is disposed between the power input and the moving blade (2). The parts of the present utility model has relatively simple processing, low requirements for material, and therefore low manufacturing costs, while the shaving effects and the service time of the parts are relatively good. The top of the shaver head is of a spherical surface, thereby providing cleaner and more comfortable shaving.

Description

Electric shaver head device

[Technical Field]

The utility model relates to an electric shaver head device, in particular to a razor blade device which is rotated obliquely and eccentrically and can be rotated forward and backward.

【Background technique】

Electric razors can be divided into rotary and reticulated films according to their working characteristics. They are all developed from the single-head razors of the 1970s. The type of electric shaver heads is quite complicated, and some have multiple layers of blades, which are difficult to machine. Moreover, the material requirements are very high, it requires relatively expensive metal materials, and it is not durable enough. The cutter head often needs to be replaced. Therefore, its cost is relatively high. The shaving effect of this type of electric shaver is also relatively common, often accompanied by pulling. After shaving of such a razor, the length of the beard remains long, and it is difficult to shave the root of the beard, so that there is a feeling of shaving. Some shaved beards are longer and longer, and the longer the beard is, the less they can shave. Therefore, such razors often need to add a scalpel like a hair clipper to shave the long beard.

Moreover, it is difficult for a rotary electric shaver to make a spherical surface that is in better contact with a human face, and thus the user's comfort is relatively poor.

The retina type razor works in a reciprocating manner, and the shaving effective area is relatively large, but the noise is large and the vibration is too strong, which may cause skin irritation on the face. Its razor is precision geometrically calculated and reliable in durability and safety. But its cost is relatively high. The blade and the omentum are 90 degrees and the sharpness is poor. Therefore, its shaving effect is also poor, and its power needs to be larger, and reciprocating motion also causes energy waste. Its shaving residue is better than the rotary type. But it is harder to shave for a longer beard. Therefore, it often requires a sickle to shave the long beard. [utility content]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric shaver head device for tilting an eccentric rotating knife that overcomes various shortcomings of the above-described razor. The shaving head of the utility model has excellent scraping degree, comfort, convenience and excellent cost performance.

The object of the present invention is achieved by the following means: An electric shaver head device. The movable knife (2), the stationary knife (1), the base (4), the movable knife seat (3), the compression spring (5), the movable knife (2) and the stationary knife (1) are in spherical contact. The movable knife seat (3) is provided with a tilting mounting shaft, and the moving knife (2) is mounted on the movable knife seat (3) with a corresponding shaft or hole structure, and the movable knife seat (3) is mounted on the base ( 4) Upper, the stationary knife (1) is mounted on the base (4), and the compression spring (5) is located between the power input end and the movable knife (2). The stationary knife (1) includes a spherical surface (12) and another surface (13) which is discontinuous from the curvature of the spherical surface (12), a movable blade (1) intermediate opening (11), and the hole (11) has a circular hole shape. It can also be a polygon, plum-shaped hole, and some small holes can be opened around the middle hole (U), and two or more buckles (14) are arranged on the side of the movable knife (1). The movable tool holder (3) is provided with a hole (31) or a shaft (31), and the hole (31) or the shaft (31) is inclined with respect to the center of rotation of the movable blade holder (3), the inclination angle Γ or more, the axis and the stationary knife ( 1) The spherical surface of the upper spherical surface (12) intersects, the base (4) is provided with a mounting hole (43), and the movable knife seat (3) is provided with a cylindrical body (32). The moving knife (2) is provided with a spherical surface (21), and the moving knife (2) is provided with a plane (22) or a curved surface (22), and the spherical surface (21) intersects the plane (22) or the curved surface (22). The cutting edge is formed at the position. The base (4) is provided with a plastic vacancy (41) equipped with a fixed knife (1) buckle (14), and the base (4) is arranged to press the plastic column (42) of the movable knife (1) upward, and the base (4) is set There are power input holes (45) and whisker drain holes (44). The movable knife (2) can be made to rotate. When the movable knife (2) is made to be able to rotate, a pair of gear pairs can be arranged between the movable knife (2) and the base (4), or a circular ring connection can be provided. The cutter head is a single cutter head or a combination of more than one cutter head. It has a base 4. When a razor has multiple cutter heads, the bases can be made in one piece. The movable base 3 is mounted on the base 4, and the movable knife 2 is mounted on the movable seat 3. The stationary knife 1 is fixed by the base, and a spring 5 is used to ensure that the movable knife 2 is in close contact with the stationary knife 1. The driving device drives the movable blade 2 to rotate by moving the blade holder 3. Since the center of operation of the movable knife 2 and the movable tool holder 3 are inclined and eccentric, a gap 6 is formed between the movable blade 2 and the stationary blade 1, so that when the driving device drives the movable blade holder 3 to rotate, The blade holder 3 rotates the movable blade 2, and the gap 6 between the movable blade 2 and the stationary blade 1 follows the rotation of the movable blade holder 3. At this time, the beard between the movable knife 2 and the stationary knife 1 is shaved. Be moving When the knife 2 is made to rotate, when a gear pair is added between the movable knife 2 and the base 4, the movable knife is rotated and strengthened. The way the shaving is done is to cut the beard into a form that is similar to the sawing of the beard, so that the shaving effect will be better. Since the movable knife 2 is eccentrically rotated, there is actually an infinite number of gaps 6 between the movable knife 2 and the stationary knife 1, so that the shaving area is larger and the shaving effect is better. Longer beards are also easier to shave. The shaving effect of the front and back rotation of the razor head device of the present invention is completely the same.

The advantages of the utility model are as follows: 1) Since the movable knife can be rotated forward and backward, the service life of the cutter head is relatively extended, and the sharpness can be maintained for a longer period of time; 2) since the movable knife can also be made to rotate, the ordinary razor The cut beard becomes an approximate sawing beard, and its shaving effect is better; 3) the contact area between the movable knife and the stationary knife is basically the same, so the noise is small; 4) the movable knife and the non-moving knife processing Requirements, the material requirements are relatively less strict, so the cost is lower: 5) The moving knife can directly face the beard, so the shaving is cleaner; 6) The thickness of the moving knife is larger, so there is no need to replace the cutter head; 7) The new electric shaver has a spherical surface on the upper surface of the stationary knife. The shaving area is upwardly protruding and thus more easily accessible to the beard. The spherical contact is more comfortable for the user.

[Description of the Drawings]

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view of the present invention having a single cutter head assembly.

2 is a perspective analysis view of the present invention having a single cutter head device.

Figure 3 (a) is a schematic view of the initial position of the movable knife with a single cutter head device of the present invention.

Fig. 3 (b) is a positional view of the movable knife holder of the present invention having a single cutter head rotated 180 degrees.

4 is a front elevational view of the present invention having a single tool bit assembly.

【detailed description】

The present invention will be described in detail below with reference to the accompanying drawings - the electric shaver head device of the present invention as shown in Fig. 1 (two or more cutter heads are often used in practice). The movable knife 2, the movable knife 1, the base 4; the razor head device further includes a movable knife seat 3 and a spring 5.

2 is a perspective, isometric view of the present invention having a single tool bit assembly. The moving knife 2 and the stationary knife 1 are closely attached to the spherical surface 21 and the spherical surface 12. Generally, the radius of the spherical surface 21 of the moving knife 2 is slightly larger than the radius of the spherical surface 12 of the stationary knife 1 to ensure that the cutting edge of the movable knife 2 is close to the fixed knife 1. Spherical 12. The stationary knife 1 is mounted on the base 4, and the buckle 14 on the stationary knife 1 is fastened to the plastic vacancy 41 on the base 4, and the plastic column 42 on the base 4 is placed under the stationary knife. If the electric shaver head unit is provided with an upper cover to limit the degrees of freedom of the stationary knife, the buckle 14 on the stationary knife 1 and the vacancy 41 on the base can be omitted.

The movable knife 2 is obliquely mounted on the movable knife seat 3, and the shaft 23 on the movable knife 2 is fitted to the upper hole 31 of the movable knife holder 3. Alternatively, the hole 23 on the movable knife 2 can be assembled on the upper shaft of the movable knife holder 3. 31. Since the hole 3 of the movable knife holder 3 is inclined, the movable knife 2 is also inclined after assembly, and the axis of the movable blade 2 and the center of the spherical surface 12 of the stationary blade 1 intersect. Therefore, no matter what position the movable knife base 3 rotates, it is ensured that the spherical surface 21 on the movable knife 2 is in close contact with the spherical surface 12 on the stationary knife 1. The cylinder 32 of the movable seat 3 is fitted in the mounting hole 43 of the base 4. The movable knife holder 3 is driven to rotate by the power driving device through the polygonal hole 33 on the movable knife holder 3, and the movable knife holder 3 rotates when the movable knife holder 3 rotates.

The compression spring 5 is used to ensure that the movable knife 2 and the stationary knife 1 are in close contact, and the compression spring 5 can be assembled in the position of FIG. 1 or between the movable knife 2 and the base 3, and can also be mounted on the power input device. Between the base 3.

Figure 3 (a) is an initial plan view of a set of razor heads, also a top view. Figure 3 (b) is a plan view of a set of razor heads rotated 180 degrees from the initial position, also as a top view. It can be seen from the figure that there is a gap 6 between the movable knife 2 and the stationary knife 1, and the gap 6 is rotated as the movable knife 2 rotates. The movable knife 1 can be opened with a small hole. When working, the gap 6 rotates as the movable knife 2 rotates, and the beard in the small hole opened in the gap 6 and the stationary knife 1 is cut. Since the movable knife 2 is continuously operated, the number of the voids 6 is actually innumerable at the time of work, thereby achieving a good shaving purpose.

The movable blade 1 has an intermediate opening 11, and the shape of the hole may be circular, or may be other shapes such as a polygon or a plum shape. The stationary blade 1 has a spherical surface 12 and a human face contact, and since it is a spherical surface, it has an upward protrusion, so Easy to touch the beard, shaving will be more convenient and clean.

4 is a front elevational view of the present invention having a single cutter head assembly. As can be seen from several figures, the cutting edge formed between the spherical surface 21 and the side surface 22 of the movable knife 2 is in the circumferential direction, that is, the cutting edge has a cutting edge. When the movable knife 2 is made rotatable, the moving knife 2 is movable. If a gear pair is added between the knife 2 and the base 4; or a disk is added to the movable knife 2 and the base 3 is added with a ring, which is tangent to the ring. This will strengthen the rotation of the knife, and the cutting of the beard will become an approximate sawing beard. Therefore, its shaving effect is better. At the same time, the gear pair or the disc ring can also withstand the centrifugal force generated by the movable knife 2 revolutions.

The movable knife 2 and the stationary knife 1 are in spherical contact, and the contact area remains substantially unchanged, so the noise is small. Since the movable knife 2 can rotate the shaving in both directions, the life of the cutter head is also extended accordingly. The machining of the movable knife 2 and the stationary knife 1 is relatively simple, and the material requirements are not so strict, so the cost is low. The movable knife 2 can be made thicker and thus has a longer life.

Claims

WO 2013/149497 Claim PCT/CN2013/000357

1. Electric shaver head device, including movable knife (2), non-moving knife (1), base (4), movable seat (3), compression spring (5), said movable knife (2) Spherical contact with the stationary knife (1), characterized in that the movable knife seat (3) is provided with a slanting mounting hole or shaft, and the movable knife (2) is assembled to the movable knife with a corresponding shaft or hole structure. On the seat (3), the movable knife seat (3) is mounted on the base (4), the stationary knife (1) is mounted on the base (4), and the compression spring (5) is located at the power Between the input and the movable knife (2).

2. An electric shaver bit device according to claim 1, characterized in that said stationary blade (1) comprises a spherical surface (12) and another surface (13) which is discontinuous in curvature with the spherical surface (12) The movable knife (1) has an intermediate opening (11), and the hole (11) has a circular hole shape, and may also be a polygonal or plum-shaped hole. The small hole may be opened around the middle hole (11), and the hole is not moved. More than two buckles (14) are placed on the side of the knife (1).

3. The electric shaver bit device according to claim 1, characterized in that the movable tool holder (3) is provided with a hole (31) or a shaft (31), a hole (31) or a shaft (31) The rotation center of the knife seat (3) is inclined, the inclination angle Γ is above, the axis intersects the spherical surface of the spherical surface (12) on the stationary knife (1), and the base (4) is provided with a mounting hole (43), The movable seat (3) is provided with a cylinder (32).

4. The electric shaver head device according to claim 1, wherein the movable knife (2) is provided with a spherical surface (21), and the movable knife (2) is provided with a flat surface (22) Or the curved surface (22), the intersection of the spherical surface (21) and the plane (22) or the curved surface (22) forms a movable cutting edge.

The electric shaver bit device according to claim 1, characterized in that the base (4) is provided with a plastic vacancy (41) fitted with a retaining blade (1) buckle (14), The base (4) is provided with a plastic column (42) that is upwardly supported against the movable blade (1), and the base (4) is provided with a power input hole (45) and a whisker drain hole (44).

6. An electric shaver bit device according to claim 1, characterized in that the movable knife (2) can be made to be rotatable.

7. The electric shaver head device according to claim 6, characterized in that a pair of gears can be arranged between the movable knife (2) and the base (4) when the movable knife (2) is made to be rotatable Vice, or set the disc ring connection.

8. An electric shaver bit apparatus according to claim 1 wherein the bit means is a single bit or more than one bit combination.