CN214818717U

CN214818717U - Novel rotary shaver

Info

Publication number: CN214818717U
Application number: CN202121015896.2U
Authority: CN
Inventors: 刘东欣
Original assignee: Specialife Zhuhai Co ltd
Current assignee: Specialife Zhuhai Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-23
Anticipated expiration: 2031-05-13

Abstract

The invention discloses a novel rotary shaver, which comprises a main body part and a head part; the head part comprises five mutually independent cutter units and a tool rest for accommodating the five cutter units; each cutter unit comprises a housing, a filter screen which is arranged on the surface of the housing and used as a stationary cutter, and a rotary movable cutter which is arranged in the housing and is coaxial with the filter screen; the housings of the five cutter units are all in a drop shape and comprise a roughly circular part and a triangular part; the five cutter units are arranged in a five-petal flower shape, the triangular inner end of each housing is arranged towards the center of the five-petal flower shape, and gaps exist among the five cutter units; the centers of the filter screens of the five cutter units are arranged at equal intervals along the circumferential direction of a circle with the center of the five-petal flower shape as the center of the circle. The invention can better follow the skin contour of a user and provides a more comfortable and clean shaving effect.

Description

Novel rotary shaver

Technical Field

The invention relates to the technical field of personal care products, in particular to a novel rotary shaver with five mutually independent cutter units.

Background

The shaving plane of the prior art generally has only two to three cutter units, and even though the cutter units can be operated independently, the cutting surface formed by combining the two to three cutter units is still difficult to be tightly attached to the concave-convex contour of the user's face, and the shaving effect is not comfortable and clean.

Disclosure of Invention

The object of the present invention is to overcome the disadvantages of the prior art and to provide a new rotary shaver with five independent cutter units, which better follows the contours of the user's skin and provides a more comfortable and clean shaving result. Moreover, the design of the housing of the present invention allows the five cutter units to be combined together in the smallest possible size, reducing the overall volume of the shaver as much as possible and increasing portability.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a novel rotary shaver comprises a main body part and a head part; the head part comprises five mutually independent cutter units and a tool rest for accommodating the five cutter units; each cutter unit comprises a housing, a filter screen which is arranged on the surface of the housing and used as a stationary cutter, and a rotary movable cutter which is arranged in the housing and is coaxial with the filter screen; the housings of the five cutter units are all in a drop shape and comprise a roughly circular part and a triangular part; the five cutter units are arranged in a five-petal flower shape, the triangular inner end of each housing is arranged towards the center of the five-petal flower shape, and gaps exist among the five cutter units; the centers of the filter screens of the five cutter units are arranged at equal intervals along the circumferential direction of a circle with the center of the five-petal flower shape as the center of the circle.

Preferably, the five cutter units are substantially identical in structure, shape and size.

Preferably, the joint between the substantially circular portion and the triangular portion of the cover is formed in an arc shape, and the upper surface of the triangular portion is also formed in an arc shape and inclined downward toward the inner end of the triangle.

Preferably, each housing is pivotally connected to the tool holder by a pivot mechanism to pivot between an initial position and a maximum stressed position; the housing is biased to an initial position by a biasing mechanism; in the initial position, the outer arc end of the housing is inclined downwardly and rests on the outer edge of the tool holder.

Preferably, the pivoting means comprise a through hole provided on both sides of the substantially circular portion of the casing, and two pins provided inside the tool holder; the two pins penetrate the two through holes respectively; the axis formed by connecting through holes on two sides of the housing penetrates through the center of the rotary moving knife and is vertical to the symmetrical axis of the housing; the cover pivots along pins that pass through the through holes on both sides.

Preferably, the biasing mechanism comprises a housing magnet fixedly arranged at the lower side of the triangular part and a tool rest magnet fixedly arranged at the middle part of the tool rest and corresponding to each housing magnet; each housing magnet is the same magnetic as the tool holder magnet.

Preferably, the number of tool holder magnets is five; the five tool rest magnets are arranged corresponding to the five housing magnets; or, the number of the tool rest magnets is one; the five housing magnets are respectively and evenly arranged corresponding to the outer edges of the tool rest magnets.

Preferably, the head includes an upper unit and a lower unit; the upper unit comprises five cutter units and a cutter frame; the lower unit comprises a lower bracket and five groups of cutter driving mechanisms which are arranged on the lower bracket and correspond to the five cutter units; when the tool rest is connected with the lower bracket, the driving shafts of the five groups of tool driving mechanisms are connected with the rotary moving tools of the five tool units so as to drive the rotary moving tools to rotate.

Preferably, the center portion of the lower bracket is provided with a lower bracket magnet corresponding to the tool post magnet; the magnetic properties of the tool holder magnet and the lower carrier magnet are opposite.

Preferably, the tool rest is connected with the lower bracket through an alignment mechanism; the alignment mechanism includes a flange extending obliquely inward and downward on the lower side of the outer edge of the tool holder, and a recess provided on the outer edge of the upper surface of the lower bracket corresponding to the shape and size of the flange.

Compared with the prior art, the invention has the following advantages and technical effects:

1. compared with the prior art rotary shaver having only two to three cutter units, the rotary shaver of the present invention has five independent cutter units, which can better follow the skin contour of the user, providing a more comfortable and clean shaving effect. Moreover, the design of the housing of the present invention allows the five cutter units to be combined together in the smallest possible size, reducing the overall volume of the shaver as much as possible and increasing portability.

2. The arc design of the housing can reduce discomfort of the skin caused by the uneven shearing surface.

3. The biasing mechanism of the invention utilizes the characteristic that magnets repel each other in the same polarity, so that the housings of the five cutter units form a shearing surface which is more adaptive to the radian of a body part, and the filter screens of the cutter units can be tightly attached to the body part to trim hairs; since the repulsive force between the housing magnet and the blade carrier magnet is always present, a good resilient force is provided to the housing, providing a more comfortable and clean shaving effect.

4. The head of the present invention is divided into an upper unit and a lower unit which are separable, and the cut hairs are collected in the lower unit during shaving, and the upper unit without charged parts can be washed with water and the hairs collected in the lower unit can be poured off only by separating the upper unit and the lower unit during cleaning, so that the present invention is convenient to clean.

5. The alignment mechanism of the invention can ensure that the upper unit and the lower unit are correctly combined together, so that the driving shafts of the five groups of cutter driving mechanisms on the lower bracket are accurately connected with the rotating cutters of the five cutter units, and the normal operation of the rotating cutters is ensured.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is a bottom perspective view of a housing of an embodiment of the present invention.

Fig. 3 is a bottom view of the housing of an embodiment of the present invention.

Fig. 4 is a perspective view of a tool holder according to an embodiment of the invention.

Fig. 5 is an elevational view of five cutter units in accordance with an embodiment of the present invention.

FIG. 6 is a cross-sectional view of the head of a housing of an embodiment of the present invention in an initial position.

FIG. 7 is a cross-sectional view of the head of an embodiment of the present invention with the housing in a maximum compressed position.

FIG. 8 is a cross-sectional view of the head of a housing of an embodiment of the invention in a different position.

Fig. 9 is a perspective view of an upper unit and a lower unit of an embodiment of the present invention.

Fig. 10 is a bottom perspective view of the upper unit of an embodiment of the present invention.

Detailed Description

The invention will be further illustrated with reference to specific examples:

as shown in fig. 1 to 10, the novel rotary shaver of the present embodiment comprises a main body 1 and a head 2. The head 2 comprises five mutually independent tool units 3 and a tool holder 4 accommodating the five tool units 3.

Each cutter unit 3 includes a housing 31, a filter screen 32 provided on the surface of the housing 31 as a stationary cutter, and a rotary cutter 33 provided in the housing 31 coaxially with the filter screen 32. The housings 31 of the five cutter units 3 are each drop-shaped, including a substantially circular portion 311 and a triangular portion 312. The five cutter units 3 are arranged in a pentapetaloid shape, the triangular inner end 313 of each housing 31 is arranged toward the center of the pentapetaloid shape, and gaps 5 exist among the five cutter units 3. As shown in fig. 5, the centers of the filter nets 32 of the five cutter units 3 are arranged equidistantly along the circumferential direction of a circle centered on the center of the pentapetaloid flower. The five cutter units 3 are substantially identical in structure, shape and size.

The filter 32 protrudes upward from the upper surface of the housing 31, and when the skin-care device is used, the filter 32 is firstly contacted with the skin surface, so that hairs on the skin surface can easily enter the filter 32, and are cut by the cooperation of the filter 32 serving as a stationary blade and the rotary blade 33. The structure and operation of the filter screen 32 and the rotary knife 33 are prior art and will not be described herein.

Each housing 31 is pivotally connected to the tool holder 4 by a pivot mechanism to pivot between an initial position and a maximum stressed position. The cover 31 is biased to the initial position by a biasing mechanism; in the initial position, the radiused outer end 314 of the housing 31 is inclined downwardly and rests on the outer edge of the tool holder 4.

The pivoting mechanism comprises a through hole 61 provided on both sides of the substantially circular portion 311 of the casing 31, and two pins 62 provided on the inside of the tool holder 4; two pins 62 are inserted into the two through holes 61, respectively. The axis formed by connecting through holes 61 on both sides of the housing 31 penetrates the center of the rotating knife 33 and is vertical to the symmetry axis of the housing 31. The cover 31 pivots along the pins 62 penetrating the through holes 61 on both sides.

The biasing mechanism comprises a cover magnet 34 fixedly arranged at the lower side of the triangular part 312, and a tool holder magnet 41 fixedly arranged at the middle part of the tool holder 4 corresponding to each cover magnet 34; each of the housing magnets 34 has the same magnetism as the holder magnets 41 so that the housing magnets 34 and the holder magnets 41 repel each other, and in the absence of external pressure, the housing magnets 34 push the triangular portion 312 of the housing 31 upward, and the housing 31 pivots along the pins 62 penetrating the through holes 61 on both sides to incline the arc-shaped outer end 314 of the housing 31 downward and rest on the outer edge of the holder 4, thereby biasing the housing 31 to the initial position. When in use, when the head 2 moves along the surface of a body part to be shaved, as the five cutter units 3 are operated independently, the filter screens 32 of the cutter units 3 bear different pressures along the radian of the body part, the cover 31 correspondingly pivots along the pins 62 penetrating into the through holes 61 on both sides, so that the triangular parts 312 of the cover 31 press downwards to offset the repulsive force between the cover magnet 34 and the knife rest magnet 41 to different degrees according to the borne pressures, a shearing surface more suitable for the radian of the body part is formed, and the filter screens 32 of the cutter units 3 can be used for shearing hairs tightly against the body part; since the repulsive force between the housing magnet 34 and the blade holder magnet 41 is always present, a good resilient force is provided to the housing 31, providing a more comfortable and clean shaving effect.

In the present embodiment, the number of the tool post magnets 41 is one; the five cover magnets 34 are respectively and evenly arranged corresponding to the outer edges of the tool rest magnets 41, so that the mutual repelling effect of the magnets is better. In other embodiments, the number of tool holder magnets 41 can be five, with five tool holder magnets being provided for five housing magnets.

The junction between the substantially circular portion 311 and the triangular portion 312 of the cover 31 is formed in an arc shape, and the upper surface of the triangular portion 312 is also formed in an arc shape and inclined downward toward the triangular inner end 313. When the concave-convex profile of the body part is changed greatly, the five cutter units 3 can be respectively positioned at different positions to form a concave-convex shearing surface; the arcuate upper surface of the triangular portion 312 of the cutter unit 3 acts as a cushion when the head 2 is moved over a body part, reducing discomfort to the skin caused by the uneven shear plane.

In the present embodiment, the head 2 includes an upper unit 7 and a lower unit 8. The upper unit 7 comprises five tool units 3 and a tool post 4; the lower unit 8 comprises a lower bracket 9 and five groups of cutter driving mechanisms 10 which are arranged on the lower bracket 9 and correspond to the five cutter units 3; when the tool rest 4 is connected to the lower bracket 9, the driving shafts 101 of the five-group tool driving mechanism 10 are connected to the rotary moving blades 33 of the five tool units 3 to drive the rotary moving blades 33 to rotate. In operation, the hair cut by the five cutter units 3 of the upper unit 7 is collected on the lower bracket 9 of the lower unit 8, and when cleaning, the upper unit 7 without charged parts can be washed by water by separating the upper unit 7 from the lower unit 8, and the hair collected by the lower bracket 9 is poured off, so that the cleaning is convenient.

The central portion of the lower bracket 9 is provided with a lower bracket magnet 91 corresponding to the tool post magnet 41; the magnetic properties of the tool post magnet 41 and the lower bracket magnet 91 are opposite to each other, and therefore, when the upper unit 7 and the lower unit 8 are combined by the user, the tool post magnet 41 and the lower bracket magnet 91 are attracted to each other, thereby combining the upper unit 7 and the lower unit 8, and are not easily separated from each other.

The tool rest 4 is connected with the lower bracket 9 through an alignment mechanism; the alignment mechanism comprises a flange 42 extending obliquely inwardly and downwardly below the outer edge of the tool holder 4, and a recess 92 provided in the outer edge of the upper surface of the lower bracket 9 corresponding to the shape and size of the flange 42. The alignment mechanism can ensure that the upper unit 7 and the lower unit 8 are correctly combined together, so that the driving shafts 101 of the five groups of cutter driving mechanisms 10 on the lower bracket 9 are accurately connected with the rotary movable cutters 33 of the five cutter units 3, and the normal operation of the rotary movable cutters 33 is ensured.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. A novel rotary shaver comprises a main body part and a head part; the cutting tool is characterized in that the head comprises five mutually independent tool units and a tool rest for accommodating the five tool units; each cutter unit comprises a housing, a filter screen which is arranged on the surface of the housing and used as a stationary cutter, and a rotary movable cutter which is arranged in the housing and is coaxial with the filter screen; the housings of the five cutter units are all in a drop shape and comprise a roughly circular part and a triangular part; the five cutter units are arranged in a five-petal flower shape, the triangular inner end of each housing is arranged towards the center of the five-petal flower shape, and gaps exist among the five cutter units; the centers of the filter screens of the five cutter units are arranged at equal intervals along the circumferential direction of a circle with the center of the five-petal flower shape as the center of the circle.

2. The rotary shaver as set forth in claim 1, wherein the five cutter units are substantially identical in structure, shape and size.

3. The rotary shaver as set forth in claim 2, wherein the junction between the substantially circular portion and the triangular portion of the housing is formed in a circular arc shape, and the upper surface of the triangular portion is formed in a circular arc shape and is inclined downwardly toward the inner end of the triangle.

4. The novel rotary shaver as set forth in claim 3, wherein each of the housings is pivotally connected to the blade carrier by a pivot mechanism to pivot between an initial position and a maximum stressed position; the housing is biased to an initial position by a biasing mechanism; in the initial position, the outer arc end of the housing is inclined downwardly and rests on the outer edge of the tool holder.

5. The rotary shaver as set forth in claim 4, wherein the pivot mechanism includes a through hole provided on both sides of the substantially circular portion of the housing, and two pins provided on the inner side of the blade holder; the two pins penetrate the two through holes respectively; the axis formed by connecting through holes on two sides of the housing penetrates through the center of the rotary moving knife and is vertical to the symmetrical axis of the housing; the cover pivots along pins that pass through the through holes on both sides.

6. The rotary shaver as claimed in claim 4, wherein the biasing means comprises housing magnets fixedly provided on the lower side of the triangular portion, and holder magnets fixedly provided at the middle portion of the holder corresponding to the respective housing magnets; each housing magnet is the same magnetic as the tool holder magnet.

7. The rotary shaver as in claim 6, wherein the number of the holder magnets is five; five tool holder magnets are arranged corresponding to five housing magnets.

8. The rotary shaver as set forth in claim 6, wherein the number of the holder magnets is one; the five housing magnets are respectively and evenly arranged corresponding to the outer edges of the tool rest magnets.

9. The new rotary shaver as set forth in claim 1, wherein the head comprises an upper unit and a lower unit; the upper unit comprises five cutter units and a cutter frame; the lower unit comprises a lower bracket and five groups of cutter driving mechanisms which are arranged on the lower bracket and correspond to the five cutter units; when the tool rest is connected with the lower bracket, the driving shafts of the five groups of tool driving mechanisms are connected with the rotary moving tools of the five tool units so as to drive the rotary moving tools to rotate.

10. The rotary shaver as set forth in claim 9, wherein the center portion of the lower bracket is provided with a lower bracket magnet corresponding to the holder magnet; the magnetic properties of the tool holder magnet and the lower carrier magnet are opposite.

11. The rotary shaver as set forth in claim 9, wherein the blade carrier is connected to the lower bracket through an alignment mechanism; the alignment mechanism includes a flange extending obliquely inward and downward on the lower side of the outer edge of the tool holder, and a recess provided on the outer edge of the upper surface of the lower bracket corresponding to the shape and size of the flange.