EP3827939B1 - Shaver and blade floating structure - Google Patents

Shaver and blade floating structure Download PDF

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Publication number
EP3827939B1
EP3827939B1 EP18927498.8A EP18927498A EP3827939B1 EP 3827939 B1 EP3827939 B1 EP 3827939B1 EP 18927498 A EP18927498 A EP 18927498A EP 3827939 B1 EP3827939 B1 EP 3827939B1
Authority
EP
European Patent Office
Prior art keywords
hinge
blade head
matching
floating structure
head floating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18927498.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3827939A1 (en
EP3827939A4 (en
Inventor
Fandi Meng
Yunfeng Qiu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzen Soocas Technology Co Ltd
Original Assignee
Shenzen Soocas Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzen Soocas Technology Co Ltd filed Critical Shenzen Soocas Technology Co Ltd
Publication of EP3827939A1 publication Critical patent/EP3827939A1/en
Publication of EP3827939A4 publication Critical patent/EP3827939A4/en
Application granted granted Critical
Publication of EP3827939B1 publication Critical patent/EP3827939B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
    • B26B19/145—Cutters being movable in the cutting head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3806—Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3853—Housing or handle

Definitions

  • the present application relates to the technical field of personal care products, more specifically, relates to a shaver and its blade head floating structure.
  • EP0757613A1 discloses an electric shaver including a housing that forms a handgrip and supports, at an end portion, at least one shaving head in which the face coming into contact with the contour to be shaved has passages for the hairs to be shaved.
  • the shaving head accommodates a cutting blade
  • the housing accommodates a drive for rotatably actuating the cutting blade about an axis that lies substantially at right angles to the resting face of the shaving head.
  • the shaving head is supported by a flexible membrane connected to the housing.
  • some shaving units use cross-type universal joints to realize the rotation with the supporting structure, but such structure assembly is cumbersome, the defect rate increases, and the flexibility of the rotating structure is not high. And it has not fundamentally solved the adaptive ability between the shaving unit and the skin and cannot provide a good user experience.
  • a blade head floating structure is provided to solve the problem that the rotating structure of the shaving unit relative to the supporting structure in the shaver in the prior art is complicated, the flexibility is low, and the user experience is poor.
  • a shaver is provided to solve the technical problems in the prior art that the rotating structure of the shaving unit relative to the supporting structure in the shaver is complicated, the flexibility is low, and the user experience is poor.
  • a blade head floating structure is provided, characterized in that the blade head floating structure comprises:
  • the shaving unit comprises a housing and a hinge cover, the housing having a mounting hole, the first hinge being fixed to the mounting hole by the hinge cover, and wherein the second hinge protrudes from the mounting hole and is fixedly connected to the supporting member, and wherein the top end of the elastic member abuts against the hinge cover.
  • the first matching groove has a first spherical arc surface, and wherein the matching portion surface has a second spherical arc surface matching with the first spherical arc surface; or alternatively wherein the first matching groove has a first plane, the surface of the matching portion having a second plane matching with the first plane.
  • the limiting structure comprises a first limiting plane arranged on the outer surface of the matching portion and a second limiting plane arranged in the first matching groove and attached to the first limiting plane.
  • a positioning block is provided in the first matching groove, and the second limiting plane is provided inside the positioning block and faces the center of the first matching groove.
  • first limiting planes there are a plurality of the first limiting planes, and a plurality of the first limiting planes are uniformly distributed on the outer wall surface of the matching portion; and there are a plurality of the second limiting planes, and a plurality of the second limiting planes are uniformly arranged on the inside the first matching groove.
  • the second hinge is fixedly connected to the supporting member through a connector.
  • a second matching groove is provided on the matching portion, at least one penetrating first connecting hole is provided on the wall of the second matching groove, and at least one second connecting hole corresponding to the first connecting hole is provided on the wall of the first matching groove, a mounting post is provided in the supporting member, and the connector is a screw that penetrates the first connecting hole and the second connecting hole into the mounting post.
  • the bottom of the second hinge has a connecting portion, and a positioning structure for limiting the connector is provided on the connecting portion corresponding to the first connecting hole.
  • the positioning structure comprises a positioning boss provided on the outer wall of the connecting portion for the connector to pass through, and further comprises a concavity located below the positioning boss, arranged along the height direction of the connecting portion and used for accommodating the connector.
  • the top of the supporting member has a step surface with inward concavity
  • the step surface is provided with a second central hole penetrating the supporting member
  • the mounting post is provided on the step surface
  • a annular protrusion is arranged on the step surface and located at the edge of the two central holes, and the bottom of the elastic member is sleeved on the annular protrusion.
  • first limiting planes wherein there is an equal number of first connecting holes and first limiting planes, and wherein at least one of the first connecting holes is arranged between the two first limiting planes.
  • the edge of the mounting hole is provided with at least one stopper
  • the edge of the first matching groove extends outward to form an annular flange
  • the annular flange is arranged on the edge of the mounting hole
  • a first avoiding groove is provided on the annular flange corresponding to the stopper
  • the hinge cover covers in the first matching groove
  • at least one block that can be stopped at the stopper is provided on the edge of the hinge cover.
  • a groove that can be locked when the block rotates horizontally is arranged between the stopper and the edge of the mounting hole, and one side of the groove is provided with a limiting block that resists the block, and the hinge cover edge is provided with a second avoiding groove that can avoid the stopper, and the block is provided at the second avoiding groove.
  • a plurality of stoppers there are a plurality of stoppers, and wherein a plurality of stoppers are evenly distributed on the edge of the mounting hole; there are a plurality of the block, and a plurality of blocks are evenly distributed on the edge of the hinge cover.
  • the edge of the mounting hole is further provided with at least one positioning post, and the annular flange is provided with a semi-circular positioning hole for at least one positioning post to be inserted when the annular flange rotates.
  • a plurality of positioning posts there are a plurality of positioning posts, a plurality of stoppers, and wherein a plurality of positioning posts and a plurality of stoppers are alternately spaced and evenly distributed on the edge of the mounting hole.
  • the shaving unit further comprises a cover plate provided on the housing, a bracket provided on the cover plate, at least one blade head assembly provided on the bracket, and a transmission structure arranged in the enclosed space of the cover plate and housing for driving the blade head assembly.
  • it also comprises a flexible bracket wrapped outside the second hinge, wherein the top of the flexible bracket is arranged on the mounting hole, the first hinge is pressed on the top edge of the flexible bracket, and the bottom of the flexible bracket is sleeved on the outer wall of the supporting member.
  • top of the outer wall of the supporting member is provided with an annular groove, and the bottom of the flexible bracket is sleeved on the annular groove.
  • a shaver which comprises a body and the above-mentioned blade head floating structure arranged on the body.
  • the beneficial effects of the shaver and blade head floating structure are: the first hinge is fixed in the shaving unit, the first hinge and the shaving unit form into one a whole; and the second hinge and the supporting member are fixedly connected, the first hinge and the second hinge are in a matching state through the first matching groove and the matching portion.
  • a limiting structure and an elastic member are arranged between the first hinge and the second hinge.
  • the first hinge and the anti-rotation limiting structure between the second hinge is separated so that the shaving unit can rotate with the first hinge around the center of the first matching groove, so as to realize the rotation of the shaving unit by 360°.
  • the elastic member acts as a flexible connection between the shaving unit and the supporting member. The flexible connection makes the shaving unit rotate 360° more smoothly; and when the shaving unit acts on different parts of the face, the external force that the face reacts to the shaver changes.
  • the elastic member elastically returns to push the shaving unit upwards, the first hinge and the shaving unit move upwards, and the limiting structure between the first hinge and the second hinge re-matches to prevent the relative rotation of the first hinge and the second hinge.
  • the shaving unit floats up and down along the central axis L to better adapt to changes in the facial curve and avoid hard contact with the face, thus bringing users a more comfortable experience.
  • references in the drawings are as follows: 100-body; 200-blade head floating structure; 210-flexible bracket; 211-ring flange; 220-limiting structure; 300-supporting member; 310-mounting post; 320-step surface; 330-second central hole; 340-second Annular protrusion; 350-annular groove; 400-shaving unit; 410-housing; 411-mounting hole; 412-stopper; 413-positioning post; 414-groove; 415-limiting block; 420-cover plate; 430-bracket; 440 -blade head assembly; 500-first hinge; 510-first matching groove; 511-second limiting plane; 512-positioning block; 513-second connecting hole; 514-annular flange; 515-first avoiding groove; 516-semi-circular positioning hole; 517-first spherical arc surface; 518-first plane; 600-second hinge; 610-matching portion; 611-first
  • a component when referred to as being “fixed to” or “installed on” another component, it can be directly on the other component or indirectly on the other component.
  • a component When a component is said to be “connected” to another component, it can be directly connected to the other component or indirectly connected to the other component.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present application, "a plurality of” means two or more, unless otherwise specifically defined.
  • the blade head floating structure 200 provided by the embodiments of the present applications is mainly applied to shaver.
  • the following takes shaver as an example for detailed description. It should be noted that the blade head floating structure 200 can also be applied to other personal care products, such as barber scissors, shaving scissors and so on.
  • the blade head floating structure provided by the embodiments of the present application includes a supporting member 300, a shaving unit, a first hinge, a second hinge, and an elastic member.
  • the shaving unit is provided above the supporting member 300
  • the first hinge is provided in the shaving unit
  • the first hinge has a first matching groove
  • the bottom of the first matching groove penetrates the first hinge
  • the top of the second hinge has a matching portion arranged in the first matching groove.
  • a limiting structure 220 that prevents relative rotation and can be separated along the central axis of the first matching groove is provided between the first matching groove and the matching portion, and the matching portion is provided with a first central hole that penetrates to the bottom of the second hinge, and the bottom of the second hinge passing through the first hinge is extended and fixed in the supporting member 300; while the elastic member is inserted into the first matching groove and the first central hole of the second hinge.
  • the top end of the elastic member abuts against the shaving unit, and the bottom end of the elastic member abuts against the supporting member 300.
  • the first hinge and the shaving unit form into one a whole; while the second hinge and the supporting member 300 are fixedly connected into one as a whole, and the first hinge and the second hinge are in a matching state by the matching groove and the matching portion, the matching state can also be regarded as the above-mentioned two wholes being in a matching state.
  • the two wholes can be rotated relative to each other.
  • the entire shaving unit is in a rotating state which makes the shaving unit unstable and inconvenient for the shaving operation; therefore, it is necessary to arrange a limiting structure 220 between the matching portions of the two wholes, namely the first hinge and the second hinge, but after the limiting structure 220 for anti-rotation of the first hinge and the second hinge is arranged, the first hinge and the second hinge cannot be rotated, so that the shaving unit has poor flexibility when shaving, and the contact with the skin is dull, and the use experience is poor.
  • an elastic member is arranged between the first hinge and the second hinge, the limiting structure 220 is separated in the axial direction of the first matching groove by pressing the first hinge, and the separated limiting structure 220 is re-opened by the elastic restoring force of the elastic member.
  • the limiting structure 220 is continuously separated and matched alternately, so that the first hinge and the second hinge can rotate or be relatively static, and the elastic member is used during the separation and matching process.
  • the extension and contraction of the shaving unit realize the floating of the shaving unit in the extension and contraction direction of the elastic member, so that the user can get a good shaving experience.
  • the shaver provided by the first embodiment of the present application includes a body 100 and a blade head floating structure 200 on the body100.
  • the blade head floating structure 200 includes a supporting member 300, a shaving unit 400 arranged above the supporting member 300, a first hinge 500 arranged in the shaving unit 400, a second hinge 600 matched with the first hinge 500, and an elastic member 800.
  • the top end of the second hinge 600 is matched with the first hinge 500 and an anti-rotation limiting structure 220 is provided between the second hinge 600 and the first hinge 500, and the bottom end of the second hinge 600 is fixedly connected to the supporting member 300.
  • the first hinge 500 has a first matching groove 510
  • the first matching groove 510 has a first spherical arc surface 517
  • the center of the first spherical arc surface 517 is O
  • the first matching groove 510 has a central axis L
  • the bottom of the first matching groove 510 penetrates the first hinge 500, that is, the first hinge 500 is hollow.
  • the top of the second hinge 600 has a matching portion 610 arranged in the first matching groove 510, the matching portion 610 is spherical, and the outer wall of the matching portion 610 matches the arc of the first spherical arc surface 517.
  • a limiting structure 220 is provided between the matching portion 610 and the first matching groove 510 to prevent relative rotation.
  • a second matching groove 620 is provided in the matching portion 610, and the bottom of the second matching groove 620 is provided with a first central hole 621 that penetrates to the bottom of the second hinge 600.
  • the bottom of the second hinge 600 penetrates the first hinge 500 and is fixed in the supporting member 300, so that the second hinge 600 is fixedly connected to the supporting member 300 to form into one as a whole.
  • the shaving unit 400 includes a housing 410 and a hinge cover 700.
  • the housing 410 has a three-lobed shape as a whole with a mounting hole 411 in the center.
  • the first hinge 500 is fixed at the mounting hole 411 through the hinge cover 700, and the second hinge 600 matched with the first hinge 500 protrudes from the mounting hole 411 and is connected to the supporting member 300.
  • the top end of the elastic member 800 abuts against the hinge cover 700.
  • the first hinge 500 is fixed at the mounting hole 411 through the hinge cover 700.
  • the hinge cover 700 may also be omitted, and the first hinge 500 may be fixed at the mounting hole 411 by the structural design of the first hinge 500 or other parts.
  • the elastic member 800 passes through the first central hole 621, the second matching groove 620 and the first matching groove 510 of the second hinge 600, and the top end of the elastic member 800 abuts against the bottom of the hinge cover 700, and the bottom end of the elastic member 800 abuts against the top of the supporting member 300.
  • the elastic force of the elastic member 800 pushes the hinge cover 700 and the supporting member 300 to both ends along the central axis L respectively, so that the first hinge 500 fixedly connected to the hinge cover 700 and the second hinge 600 fixedly connected to the supporting member 300 are more closely attached on the spherical arc surface.
  • the shaving unit 400 When the shaver is working, the shaving unit 400 is in contact with the face and is squeezed by the force of the face, the shaving unit 400 drives the hinge cover 700 to move downward and squeeze the elastic member 800, and at the same time the first hinge 500 also moves downward. When the elastic force of member 800 is applied, elastic member 800 is compressed. During this process, the anti-rotation limiting structure 220 between the first hinge 500 and the second hinge 600 separates so that the hinge cover 700 and the shaving unit 400 can rotate with the first hinge 500 around the center O of the first spherical arc surface 517. In this way, the shaving unit 400 can be rotated within a range of 360°.
  • the elastic member 800 is a flexible connection between the shaving unit 400 and the supporting member 300, making the 360° rotation of the shaving unit 400 smoother; and when the shaving unit 400 acts on different position of the face, the external force of the face reacting to the shaver changes.
  • the elastic member 800 elastically returns to push the hinge cover 700 upward, and the first hinge 500 and the shaving unit 400 move upward,
  • the limiting structure 220 between the hinge 500 and the second hinge 600 is re-matched to prevent the first hinge 500 and the second hinge 600 from rotating relative to each other.
  • the shaving unit 400 floats up and down along the central axis L, which can better adapt to changes in the face curve and avoid hard contact with the face, thus bringing users a more comfortable shaving experience.
  • the limiting structure 220 does not block the rotation of the first hinge 500.
  • the limiting structure 220 is designed simply and ingeniously, which prevents rotation in the circumferential direction without affecting the separation in the axial direction.
  • the limiting structure 220 includes a first limiting plane 611 arranged on the outer wall of the matching portion 610 and a second limiting plane 511 arranged in the first matching groove 510 and attached to the first limiting plane 611. Since the outer wall surfaces of the first spherical arc surface 517 and the matching portion 610 are spherical arc surfaces, they can rotate without friction or resistance when they are directly matched.
  • the first limiting plane 611 and the second limiting plane 511 are arranged to match each other, the first hinge 500 and the matching portions 610 rotate with each other, the first limiting plane 611 and the second limiting plane 511 cannot rotate due to the frictional force between the two planes, thereby realizing the limitation in the circumferential direction.
  • the two planes are attached in the axial direction without hindering the upward or downward movement of the first hinge 500.
  • the first limiting plane 611 can be regarded as a plane formed by longitudinal cutting along the outer wall surface of the matching portion 610. Since the first spherical arc surface 517 is a curved surface, in order to facilitate the arrangement of the second limiting plane 511, a positioning block 512 is provided in the first matching groove 510, and the second limiting plane 511 is arranged inside the positioning block 512 toward the center of the first matching groove 510.
  • the positioning block 512 has a cubic block structure, and the second limiting plane 511 is the inner surface of the cubic block structure.
  • first limiting planes 611 there are three first limiting planes 611, and the three first limiting planes 611 are evenly distributed on the outer wall of the matching portion 610; there are three second limiting planes 511, and the three second limiting planes 511 are evenly arranged in the first matching groove 510.
  • the first hinge 500 and second hinge 600 can be well limited.
  • the top surface of the cubic positioning block 512 is also flat, a triangular arrangement is formed between the three positioning blocks 512, and the top surfaces of the three positioning blocks 512 form a stable supporting surface for supporting the hinge cover 700 more reliably.
  • the number of the first limiting plane 611 and the second limiting plane 511 can also be one, two, or four, or more.
  • the second hinge 600 and the supporting member 300 are fixedly connected as a whole, the second hinge 600 and the supporting member 300 are assembled and fixed by the connector 900.
  • the fixed connection between the second hinge 600 and the supporting member 300 is detachable, which is convenient for disassembly, maintenance, and assembly during product production.
  • other detachable fixed connection methods such as a snap connection, can also be used.
  • the second matching groove 620 of the matching portion 610 of the second hinge 600 is provided with a first connecting hole 622
  • the first matching groove 510 attached to the matching portion 610 is provided with a second connecting hole 513 corresponding to the first connecting hole 622.
  • the connector 900 is specifically a screw.
  • a mounting post 310 is provided in the supporting member 300, and a screw hole is provided in the mounting post 310 (not labeled in the figure). The screws pass through the first connecting hole 622 and the second connecting hole 513 and are screwed into the screw holes of the mounting post 310.
  • the second hinge 600 is fixed by screwing, which is simple in structure, easy to process and assemble.
  • the supporting member 300 is a general cylindrical structure, which has a step surface 320 with an inward concavity on the top.
  • the step surface 320 is provided with a second central hole 330 that penetrates the supporting member 300.
  • the mounting post 310 is provided on the step surface 320. In this way, the depth of the step surface 320 recessed downward fills the height of the mounting post 310 to prevent the mounting post 310 from protruding from the top surface of the supporting member 300 and occupy more space or form a connection gap.
  • first connecting holes 622 there are three first connecting holes 622, three second connecting holes 513, three mounting posts 310, and three connectors 900.
  • the three connectors 900 are arranged in a triangle shape to make the second hinge 600 and the supporting member 300 more stable.
  • the number of the first limiting plane 611 and the first connecting hole 622 are both three.
  • the first connecting hole 622 and the first limiting plane 611 are alternately arranged at intervals, that is, a first connecting hole 622 is arranged between the two first limiting planes 611, and a first limiting plane 611 is arranged between the two first connecting holes 622.
  • the top of the second hinge 600 is a matching portion 610
  • the bottom has a connecting portion 630
  • the connecting portion 630 is specifically a cylindrical structure.
  • the diameter of the cylinder is slightly larger than the bottom diameter of the matching portion 610. Since the inner wall surface of the second spherical arc surface in the ball head gradually increases from bottom to top, the diameter of the cylinder is designed to be slightly larger than the bottom diameter of the matching portion 610.
  • the compactness of the second hinge 600 is maintained, on the other hand, it also enables the connector 900 to pass through the connecting portion 630 when passing through the matching portion 610 through the first connecting hole 622, thus the matching portion 610 and the connecting portion 630 of the second hinge 600 are connected as a whole through the connector 900, so that the instability caused by separation from the connecting portion 630 when only the matching portion 610 is connected to the supporting member 300 could be avoided. And cause.
  • a positioning structure for limiting the connector 900 is provided on the connecting portion 630 corresponding to the first connecting hole 622.
  • the positioning structure includes a positioning boss 640 provided on the outer wall of the connecting portion 630 for the connector 900 to pass through, and a concavity 650 provided under the positioning boss 640 along the height direction of the connecting portion 630 for accommodating the connector 900.
  • a semi-circular hole 641 is provided on the positioning boss 640 for the connector 900 to pass through, or a circular hole may be provided, or the positioning boss 640 is directly designed as a positioning ring for the connector 900 to pass through.
  • the elastic member 800 is preferably a spring.
  • the spring is pre-compressed between the hinge cover 700 and the supporting member 300.
  • the installation structure of the spring is shown in Fig. 3 and Fig. 9 .
  • the bottom center of the hinge cover 700 extends around the central hole to form a first annular protrusion 710.
  • a second annular protrusion 340 is provided on the step surface 320 of the supporting member 300 and at the edge of the central hole.
  • the top of the spring is sleeved on the first annular protrusion 710, and the bottom of the spring is sleeved on the second annular protrusion 340.
  • the bottom of the hinge cover 700 and the step surface 320 of the supporting member 300 may also be provided with concave holes, and the two ends of the spring are respectively arranged in the concave holes.
  • the spring can also be replaced by other retractable and resettable elastic components, such as, shrapnel.
  • the shaving unit 400 further includes a cover plate 420 arranged on the housing 410, a bracket 430 arranged on the cover plate 420, and at least one blade head assembly 440 arranged on the bracket 430 (in this embodiment, there are three blade head assemblies 440), and a transmission structure (not shown in the Figure) provided in the enclosed space of housing 410 and cover plate 420 for driving the blade head assembly 440.
  • the edge of the first matching groove 510 of the first hinge 500 extends outward to form an annular flange 514.
  • the annular flange 514 is stacked on the edge of the mounting hole 411.
  • the edge of the mounting hole 411 is provided with at least one stopper 412.
  • the annular flange 514 is provided at the corresponding stopper 412.
  • There is a first avoiding groove 515 the hinge cover 700 covers on the first matching groove 510, and the edge of the hinge cover 700 protrudes outward at least one block 720 that can be stopped at the stopper 412. In this way, the hinge cover 700 is fixed on the housing 410 through the block 720 and the stopper 412.
  • the hinge cover 700 covers on the first hinge 500, the first hinge 500 is limited between the housing 410 and the hinge cover 700, so that the first hinge 500, housing 410 and the hinge cover 700 is connected in to one as a whole.
  • the edge of the mounting hole 411 is further provided with at least one positioning post 413, and the circular flange 514 is provided with a semi-circular positioning hole 516 for at least one positioning post 413 to be inserted when the circular flange 514 rotates.
  • the positioning post 413 and the semi-circular positioning hole 516 not only play a role in positioning, but also play a role in supporting and positioning the internal transmission structure of the housing 410.
  • the position of stopper412 is higher than the edge of mounting hole411.
  • the gap between stopper412 and the edge of mounting hole411 forms a groove 414 that can be locked when block720 rotates horizontally.
  • a limiting block 415 is provided on one side of groove 414.
  • the hinge cover 700 is installed in place.
  • the second avoiding groove 730 is arranged on the edge of hinge cover 700 to avoid stopper 412, the block 720 is arranged in the second avoiding groove 730.
  • the hinge cover 700 covers on the first hinge 500, specifically, the hinge cover 700 is arranged on the top surface of the three positioning blocks 512, and the second avoiding groove 730 is arranged corresponding to the block 720, and then the hinge cover 700 is rotated to make the block 720 rotate into the groove414 until it stops at the limiting block415 to complete the installation of the hinge cover700.
  • the groove 414 limits the block 720 in the direction of the central axis L
  • the limiting block 415 and the second avoiding groove 730 limit the rotation angle of the block 720 in the circumferential direction.
  • the three stoppers 412 are evenly distributed on the edge of the mounting hole 411,there are three positioning posts 413, and the three positioning posts 413 and three stopper 412 are alternately spaced and evenly distributed on the edge of the mounting hole 411. That is, a stopper 412 is arranged between two positioning posts 413, and a positioning post 413 is arranged between two stoppers 412.
  • a stopper 412 is arranged between two positioning posts 413, and a positioning post 413 is arranged between two stoppers 412.
  • the hinge cover 700 is fixed in a detachable manner of screwing and snapping in as described above.
  • the hinge cover 700 may also be fixed by screw fixing, glue bonding, or ultrasonic welding.
  • the blade head floating structure 200 further includes a flexible bracket 210.
  • the flexible bracket 210 is wrapped around the outside of the second hinge 600. That is, the flexible bracket 210 has a hollow cylindrical structure, and the second hinge 600 is located in the hollow structure of the flexible bracket 210.
  • the top of the flexible bracket 210 also extends outward to form a ring flange 211, the ring flange 211 is arranged on the edge of the mounting hole 411, the annular flange 514 of the first hinge 500 is pressed on the ring flange 211, and the top outer wall of the supporting member 300 is provided with a ring groove 350, and the bottom of the flexible bracket 210 is sleeved on the supporting member annular groove 350 to realize the fixation of the top and bottom of the flexible bracket 210.
  • the flexible bracket 210 is arranged here to shield the exposed part between the housing 410 and the supporting member 300, which improves the appearance of the shaver, protects the internal components, and also supports the shaving unit 400 to a certain extent.
  • the blade head floating structure 200 provided in the second embodiment of the present application is substantially the same as the blade head floating structure 200 in the first embodiment, except that the shape of the first matching groove 510 and the matching portion 610 are different.
  • the first matching groove 510 has a first plane 518 inside, the first plane extends horizontally inward along the bottom edge of the first matching groove 510, and the surface of the matching portion 610 has a second plane 612 matching with the first plane 518.
  • the second plane 612 is the bottom plane of the matching portion 610.
  • the matching portion 610 of the second hinge 600 extends into the first matching groove 510 of the first hinge 500, the second plane 612 of the matching portion 610 overlaps with the first plane 518 in the first matching groove 510.
  • the second plane 612 and the first plane 518 can rotate with each other, thereby the relative rotation between the first hinge 500 and the second hinge 600 can also be realized, and the requirement of the shaving unit 400 to rotate within a range of 360° in the first embodiment can also be realized.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
EP18927498.8A 2018-07-25 2018-07-25 Shaver and blade floating structure Active EP3827939B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/097052 WO2020019200A1 (zh) 2018-07-25 2018-07-25 剃须刀及刀头浮动结构

Publications (3)

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EP3827939A1 EP3827939A1 (en) 2021-06-02
EP3827939A4 EP3827939A4 (en) 2021-07-07
EP3827939B1 true EP3827939B1 (en) 2024-05-08

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EP18927498.8A Active EP3827939B1 (en) 2018-07-25 2018-07-25 Shaver and blade floating structure

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EP (1) EP3827939B1 (zh)
KR (1) KR102560870B1 (zh)
RU (1) RU2762888C1 (zh)
WO (1) WO2020019200A1 (zh)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0757613B1 (en) * 1995-02-24 2001-12-12 Koninklijke Philips Electronics N.V. Electric shaver

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DE3843936C1 (zh) * 1988-12-24 1990-05-31 Braun Ag, 6000 Frankfurt, De
RU2124433C1 (ru) * 1997-10-08 1999-01-10 Уфимское приборостроительное производственное объединение Бреющая головка электробритвы
US7472483B2 (en) * 2002-05-07 2009-01-06 Koninklijke Philips Electronics N.V. Shaving apparatus with spring-mounted shaving head holder
JP4756908B2 (ja) * 2005-05-18 2011-08-24 株式会社泉精器製作所 ロータリー式電気かみそり
JP4919255B2 (ja) * 2005-10-25 2012-04-18 株式会社泉精器製作所 ロータリー式電気かみそり
US7897266B2 (en) * 2007-02-09 2011-03-01 Rovcal, Inc. Personal grooming device having a tarnish resistant, hypoallergenic and/or antimicrobial silver alloy coating thereon
CN101564845A (zh) * 2008-04-25 2009-10-28 曹伟明 多环剃须刀组
CN202241350U (zh) * 2011-10-19 2012-05-30 孔祥青 浮动旋转式无网罩支架电动剃须刀
CN102873696B (zh) * 2012-09-13 2015-07-22 宁波邦首电器有限公司 剃须刀浮动刀头
US9592614B2 (en) * 2013-05-16 2017-03-14 Koninklijke Philips N.V. Shaving head with pivotable shaving unit
CN204160507U (zh) * 2014-10-14 2015-02-18 王保华 电动剃须刀刀头的浮动结构
AU2015101748A4 (en) * 2015-12-03 2016-02-04 Zhejiang Paiter Electric Co., Ltd. Floating blade rest seat set
CN205466349U (zh) * 2016-04-11 2016-08-17 薛伯钱 剃须刀用浮动式圆刀双刀网单元
CN106514732B (zh) * 2016-12-02 2018-08-31 广东罗曼智能科技股份有限公司 一种浮动式剃须刀

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0757613B1 (en) * 1995-02-24 2001-12-12 Koninklijke Philips Electronics N.V. Electric shaver

Also Published As

Publication number Publication date
KR20210024057A (ko) 2021-03-04
EP3827939A1 (en) 2021-06-02
WO2020019200A1 (zh) 2020-01-30
KR102560870B1 (ko) 2023-07-27
RU2762888C1 (ru) 2021-12-23
EP3827939A4 (en) 2021-07-07

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