WO2020019200A1 - 剃须刀及刀头浮动结构 - Google Patents

剃须刀及刀头浮动结构 Download PDF

Info

Publication number
WO2020019200A1
WO2020019200A1 PCT/CN2018/097052 CN2018097052W WO2020019200A1 WO 2020019200 A1 WO2020019200 A1 WO 2020019200A1 CN 2018097052 W CN2018097052 W CN 2018097052W WO 2020019200 A1 WO2020019200 A1 WO 2020019200A1
Authority
WO
WIPO (PCT)
Prior art keywords
hinge
cutter head
floating structure
groove
head according
Prior art date
Application number
PCT/CN2018/097052
Other languages
English (en)
French (fr)
Inventor
孟凡迪
邱云峰
Original Assignee
舒可士（深圳）科技有限公司
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 舒可士（深圳）科技有限公司 filed Critical 舒可士（深圳）科技有限公司
Priority to KR1020217002077A priority Critical patent/KR102560870B1/ko
Priority to EP18927498.8A priority patent/EP3827939B1/en
Priority to RU2021101328A priority patent/RU2762888C1/ru
Priority to PCT/CN2018/097052 priority patent/WO2020019200A1/zh
Publication of WO2020019200A1 publication Critical patent/WO2020019200A1/zh

Links

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
    • 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
    • B26B19/14—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
    • B26B19/38—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 invention belongs to the technical field, and more specifically, relates to a shaver and a floating structure of its blade.
  • the majority of the shaving unit and the supporting structure are fixedly connected, that is, the shaving unit cannot move relative to the supporting structure, and the cutter head assembly located on the shaving unit is The internal transmission structure is driven to rotate for shaving operation.
  • This structure meets the shaving requirements, when the shaving unit moves on the skin surface, the shaving unit and the skin are in rigid contact, and it is entirely dependent on the grip of the person to adjust the shaving. Strength.
  • the shaving unit is in tight contact with the skin, press the razor a bit looser by hand, otherwise, press it tighter.
  • the hand is in a tense state. After the shaving is completed, You may feel sore, and the experience is very poor.
  • some shaving units use a cross-type universal joint to achieve rotation with the supporting structure, but such a structure is cumbersome to assemble, the defect rate increases, and the flexibility of this rotating structure is not high and is not fundamental. Solving the adaptive ability between the shaving unit and the skin cannot provide a good user experience.
  • a floating head structure is provided to solve the rotating structure of the shaving unit relative to the supporting structure of the existing razor in the prior art, which is complicated, the flexibility is not high, and the user Experience poor technical issues.
  • a shaver is provided to solve the technical problems of the complex rotating structure of the shaving unit relative to the supporting structure, the low flexibility, and the poor user experience in the prior art.
  • a floating head structure including,
  • a shaving unit provided above the support
  • a first hinge provided in the shaving unit, the first hinge having a first mating groove therein, and a bottom of the first mating groove penetrating the first hinge;
  • the second hinge has a fitting portion placed in the first fitting groove on the top, and a relative rotation prevention is provided between the first fitting groove and the fitting portion and can be along the central axis direction of the first fitting groove.
  • the upper part of the limiting structure is provided with a first center hole penetrating to the bottom of the second hinge, and the bottom of the second hinge extends through the first hinge to be installed on the supporting member. in;
  • An elastic member passes through the first matching groove and the first center hole of the second hinge, a top end of the elastic member abuts against the shaving unit, and a bottom end of the elastic member abuts against The support.
  • the shaving unit includes a shell and a hinge cover, the shell has a mounting hole, the first hinge is fixed at the mounting hole through the hinge cover, and the second hinge is fixed at the mounting
  • the hole protrudes from the hole to be fixedly connected with the supporting member, and the top end of the elastic member abuts the hinge cover.
  • first mating groove has a first spherical arc surface therein, and the surface of the mating portion has a second spherical arc surface mating with the first spherical arc surface; or, the first mating groove has a first spherical arc surface therein.
  • the position-limiting structure includes a first position-limiting plane provided on an outer surface of the mating portion and a second position-limiting plane provided in the first mating groove and capable of conforming to the first position-limiting plane.
  • a positioning block is provided in the first matching groove, and the second limiting plane is provided on the inner side of the positioning block and faces the center of the first matching groove.
  • first limiting planes there are a plurality of first limiting planes, and a plurality of the first limiting planes are evenly distributed on the outer wall surface of the mating portion; there are a plurality of second limiting planes, and a plurality of the second limiting planes.
  • the limiting plane is uniformly disposed in the first matching groove.
  • the second hinge is fixedly connected to the support member through a connecting member.
  • the mating portion is provided with a second mating groove
  • the wall of the second mating groove is provided with at least one first connecting hole penetrating through
  • the first mating groove wall is provided corresponding to the first connecting hole.
  • a mounting post is provided in the support member, and the connection member is a screw that penetrates into the installation post through the first connection hole and the second connection hole.
  • the bottom of the second hinge has a connection portion, and a positioning structure for limiting the connection member is provided on the connection portion corresponding to the first connection hole.
  • the positioning structure includes a positioning protrusion provided on an outer wall of the connecting portion through which the connecting member can pass, and is located below the positioning protrusion along the height direction of the connecting portion and is used for The recess of the connecting member is received.
  • the top of the support member has a stepped surface recessed inward, a second central hole penetrating the support member is provided on the stepped surface, the mounting column is provided on the stepped surface, and the step An annular protrusion is provided on the surface and located at the edge of the two central holes, and the bottom of the elastic member is sleeved on the annular protrusion.
  • the number of the first limit planes is multiple, the number of the first connection holes is the same as the number of the first limit planes, and a first A connection hole.
  • the edge of the mounting hole is provided with at least one stopper, and the edge of the first mating groove extends outward to form a ring-shaped flange, and the ring-shaped flange is placed on the edge of the mounting hole, and the ring-shaped A first avoidance groove is provided on the flange corresponding to the stopper, the hinge cover plate is disposed in the first fitting groove, and at least one edge of the hinge cover plate is lockable on the hinge cover plate.
  • a locking groove is provided between the stopper and the edge of the mounting hole for the locking piece to be locked when the locking piece is horizontally rotated, and a limiting block for blocking the locking piece is provided on one side of the locking groove.
  • the edge of the hinge cover is provided with a second avoidance slot that can avoid the stopper, and the clamping block is provided at the second avoidance slot.
  • stoppers there are a plurality of stoppers, and a plurality of the stoppers are evenly distributed on the edge of the mounting hole; and a plurality of the stoppers, a plurality of the stoppers are evenly distributed on the edge of the hinge cover.
  • At least one positioning post is provided at the edge of the mounting hole, and the annular flange is provided with a semi-circular positioning hole for the at least one of the positioning posts to engage when the annular flange is rotated.
  • the plurality of positioning posts and the plurality of stoppers are alternately spaced and evenly distributed on the edge of the mounting hole.
  • the shaving unit further includes a cover plate provided on the housing, a bracket provided on the cover plate, at least one cutter head assembly provided on the bracket, and the housing and the housing.
  • it further comprises a flexible bracket wrapped around the second hinge, the top of the flexible bracket is placed in the mounting hole, the first hinge is pressed on the top edge of the flexible bracket, and the flexible The bottom of the bracket is sleeved on the outer wall of the support.
  • annular card slot is provided on the outer wall of the top of the support, and the bottom of the flexible bracket is sleeved on the annular card slot.
  • a shaver which includes a main body, and further includes the above-mentioned blade head floating structure provided on the main body.
  • the razor and cutter head floating structure provided by the embodiments of the present invention have the beneficial effects that: the first hinge is fixed in the shaving unit, and the first hinge and the shaving unit are integrated into a whole;
  • the two hinges are fixedly connected to the support, the first hinge and the second hinge are in a mating state with the mating portion through the first mating groove, a limiting structure is provided between the first hinge and the second hinge, and at the same time, an elastic member is provided for shaving
  • the knife works when the shaving unit comes into contact with the face and is squeezed by the force of the face, the shaving unit moves downward to squeeze the elastic member, and at the same time, the first hinge also moves downward, and when the downward force is greater than the elastic member During the elastic force, the elastic member is compressed.
  • the rotation-preventing limiting structure between the first hinge and the second hinge is separated so that the shaving unit can rotate with the first hinge around the center of the first fitting groove, thereby The 360 ° rotation of the shaving unit is realized.
  • the elastic member is a flexible connection between the shaving unit and the support, so that the 360 ° rotation of the shaving unit is smoother; and when the shaving unit acts on different parts of the face Face
  • the external force acting on the shaver changes.
  • the elastic member elastically recovers to push the shaving unit upward, and the first hinge and the shaving unit move upward.
  • the restriction structure between the first hinge and the second hinge re-cooperates to prevent the first hinge and the second hinge from rotating relative to each other.
  • the shaving unit 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, which brings users a more comfortable experience.
  • FIG. 1 is a schematic structural diagram of a shaver provided in Embodiment 1 of the present invention.
  • FIG. 2 is a side view of a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention
  • FIG. 3 is a longitudinal sectional view of a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention
  • FIG. 4 is a schematic structural diagram of a first hinge in a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention
  • FIG. 5 is a schematic structural diagram of a second hinge in a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention
  • FIG. 6 is an exploded view of a first hinge and a second hinge in a floating structure of a cutter head in a shaver according to Embodiment 1 of the present invention before assembly;
  • FIG. 7 is an assembly plan view of a first hinge and a second hinge in a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention.
  • FIG. 8 is a longitudinal sectional view of a first hinge and a second hinge in a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention
  • FIG. 9 is a schematic structural diagram of a supporting member in a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention.
  • FIG. 10 is a schematic structural diagram of a hinge cover in a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention
  • FIG. 11 is an exploded view of the hinge cover and the shell in the shaving head floating structure in the shaver according to the first embodiment of the present invention before assembly;
  • FIG. 12 is an assembly plan view of a hinge cover and a shell in a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention
  • FIG. 13 is an exploded schematic view of a floating structure of a cutter head in a shaver provided in Embodiment 1 of the present invention.
  • FIG. 14 is an enlarged view at A in FIG. 11; FIG.
  • FIG. 15 is an exploded schematic view of a floating structure of a cutter head provided in Embodiment 2 of the present invention.
  • 16 is a longitudinal sectional view of a floating structure of a cutter head according to a second embodiment of the present invention.
  • a component when a component is called “fixed to” or “disposed to” another component, it may be directly on another component or indirectly on the other component.
  • a component When a component is referred to as being “connected to” another component, it can be directly connected to the other component or indirectly connected to the other component.
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality” is two or more, unless specifically defined otherwise.
  • the floating structure of the cutter head provided by the embodiment of the present invention is mainly applied to a shaver, and the shaver is taken as an example for detailed description below. It should be noted that the floating structure of the cutter head can also be applied to other personal care products, such as hair clippers, shaving shears, and the like.
  • the blade head floating structure provided by the embodiment of the present invention includes a support member, a shaving unit, a first hinge, a second hinge, and an elastic member.
  • the shaving unit is provided above the support, and the first hinge is provided in the shaving unit.
  • the first hinge has a first mating groove, and the bottom of the first mating groove penetrates the first hinge.
  • the second hinge has a top portion.
  • a restricting structure is provided between the first mating groove and the mating portion to prevent relative rotation and can be separated along the central axis direction of the first mating groove in the mating portion in the first mating groove.
  • the first hinge and the shaving unit form an integral body; and the second hinge and the support are fixedly connected as a whole, and the first hinge and the second hinge are integrally formed.
  • the mating state of the mating groove and the mating part can also be regarded as the mating state of the two above-mentioned units.
  • the two units can rotate relative to each other. In this way, for the entire shaver, When shaving, the entire shaving unit is in a rotating state. This situation makes the shaving unit unstable and is not convenient for shaving operation; therefore, the part that needs to fit between the two wholes, that is, the first hinge and the second hinge A limiting structure is provided between the two hinges.
  • an elastic member is provided between the first hinge and the second hinge, and the limiting structure is separated in the axial direction of the first mating groove by pressing the first hinge, and is separated by the elastic restoring force of the elastic member.
  • the limiting structure is re-coordinated. In this way, according to different shaving strengths, the limiting structure is continuously separated and matched during shaving, so that the first hinge and the second hinge are mutually rotated or relatively stationary, and are separated.
  • the shaving unit is floated in the stretching and contracting direction of the elastic member through the stretching and contracting of the elastic member, so that the user has a good shaving experience.
  • the shaver provided in the first embodiment of the present invention includes a main body 100 and a cutter head floating structure 200 provided on the main body 100.
  • the blade head floating structure 200 includes a support member 300, a shaving unit 400 provided above the support member 300, a first hinge 500 provided in the shaving unit 400, a second hinge 600 that cooperates with the first hinge 500, and Elastic piece 800.
  • a top end of the second hinge 600 is matched with the first hinge 500 and an anti-rotation limiting structure 220 is provided therebetween, and a bottom end of the second hinge 600 is fixedly connected to the support 300.
  • the first hinge 500 has a first mating groove 510 therein, and the first mating groove 510 has a first spherical arc surface 517 therein.
  • the spherical center of the first spherical arc surface 517 is O, and the first mating 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 mating portion 610 placed in the first mating groove 510.
  • the mating portion 610 has a spherical shape.
  • the outer wall surface of the mating portion 610 matches the arc surface of the first spherical arc surface 517.
  • a limiting structure 220 is provided between the mating portion 610 and the first mating groove 510 to prevent relative rotation.
  • the engaging portion 610 is provided with a second engaging groove 620.
  • a bottom of the second engaging groove 620 is provided with a first central hole 621 penetrating to the bottom of the second hinge 600.
  • the bottom of the second hinge 600 extends through the first hinge 500 and is fixed to In the supporting member 300, in this way, the second hinge 600 is fixedly connected to the supporting member 300 as a whole.
  • the shaving unit 400 includes a housing 410 and a hinge cover 700.
  • the housing 410 is three-lobed as a whole, and has a mounting hole 411 in the center.
  • the first hinge 500 is fixed at the mounting hole 411 by a hinge cover 700, and the second hinge 600 that cooperates with the first hinge 500 protrudes at the mounting hole 411. And connected with the support 300.
  • the top end of the elastic member 800 is in contact with 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 using its own structural design or other parts.
  • the elastic member 800 passes through the first center 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. The bottom end abuts on the top of the support 300.
  • the elastic force of the elastic member 800 pushes the hinge cover 700 and the support 300 along both sides of the central axis L, so that the first hinge 500 fixedly connected to the hinge cover 700 and the support 300 are fixedly connected.
  • the second hinges 600 are more closely fitted with a spherical arc surface.
  • the shaving unit 400 drives the hinge cover 700 to move downward to squeeze the elastic member 800, and at the same time, the first hinge 500 also follows Move downward.
  • the rotation-preventing limiting structure 220 between the first hinge 500 and the second hinge 600 is separated to make the hinge
  • the cover plate 700 and the shaving unit 400 can rotate with the first hinge 500 around the spherical center O of the first spherical arc surface 517, so that the shaving unit 400 can be rotated within a range of 360 °.
  • the elastic member 800 is shaved.
  • the flexible connection between the beard unit 400 and the support 300 makes the 360 ° rotation of the shaving unit 400 smoother; and when the shaving unit 400 acts on different parts of the face, the external force of the face reacts to the shaver changes
  • the external force applied to the shaving unit 400 decreases, that is, the external force is less than the elastic force of the elastic member 800
  • the elastic member 800 elastically recovers and pushes the hinge cover 700 upward, and the first hinge 500 and the shaving unit 400 move upward.
  • Limit between hinge 500 and second hinge 600 The structure 220 re-cooperates to prevent the first hinge 500 and the second hinge 600 from rotating relative to each other. In this process, the shaving unit 400 floats up and down along the central axis L, and is more able to adapt to changes in the face curve and avoid hard contact with the face, thereby Give users a more comfortable shaving experience.
  • the position limiting structure 220 does not block the rotation of the first hinge 500
  • the design of the limiting structure 220 is simple and clever, that is, to prevent rotation in the circumferential direction without affecting separation in the axial direction.
  • the limiting structure 220 includes a first limiting plane 611 provided on an outer wall surface of the mating portion 610 and a first limiting plane 611 provided in the first mating groove 510. ⁇ ⁇ ⁇ 511 ⁇ The second limit plane 511.
  • first spherical arc surface 517 and the outer wall surface of the mating portion 610 are spherical arc surfaces, they can rotate with each other without friction and resistance when they are directly mated, and between the first limiting plane 611 and the second limiting plane 511
  • first limit plane 611 and the second limit plane 511 cannot rotate due to the friction between the two planes, thereby achieving limit in the circumferential direction. Bit.
  • the two planes sticking together in the axial direction do not prevent the first hinge 500 from moving up or down.
  • the first limiting plane 611 can be regarded as a plane formed by longitudinal cutting along the outer wall surface of the mating portion 610. Since the first spherical arc surface 517 is an arc surface, in order to facilitate the setting 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 provided on the inner side of the positioning block 512 to face the first The center of the matching groove 510. In this embodiment, the positioning block 512 has a cubic block structure, and the second limiting plane 511 is a surface on the inner side of the cube.
  • 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 surface of the mating portion 610.
  • second limiting planes 511 Evenly disposed in the first matching groove 510.
  • the position between the first hinge 500 and the second hinge 600 can be well limited.
  • the top surface of the cube-shaped positioning block 512 is also flat, in this way, a triangular arrangement is formed between the three positioning blocks 512, and the top surfaces of the three positioning blocks 512 form a stable support surface for more reliable support Hinge cover 700.
  • the number of the first limit plane 611 and the second limit plane 511 may also be one, two, or four, or more.
  • the connecting member 900 when the second hinge 600 and the supporting member 300 are fixedly connected as a whole, the two are assembled and fixed by the connecting member 900.
  • the connecting member 900 Through the assembly of the connecting member 900, the fixed connection between the second hinge 600 and the supporting member 300 is detachable. In this way, it is convenient to disassemble and maintain, and it is also convenient to assemble the product during production.
  • other detachable fixed connection methods such as snap-on connection, may also be adopted.
  • a first connecting hole 622 is provided in the second engaging groove 620 of the engaging portion 610 of the second hinge 600, and a first corresponding hole 622 corresponding to the first connecting hole 622 is provided in the first engaging groove 510 that is fitted to the engaging portion 610.
  • the connecting member 900 is specifically a screw.
  • a mounting post 310 is provided in the support member 300, and a screw hole (not labeled) is provided in the mounting post 310. The screw is screwed into the screw hole of the mounting post 310 through the first connection hole 622 and the second connection hole 513.
  • the second hinge 600 is fixed by screwing.
  • the structure is simple, easy to process, and easy to assemble.
  • the support member 300 has a substantially cylindrical structure.
  • the top of the support member 300 has a stepped surface 320 recessed inward.
  • the stepped surface 320 is provided with a second central hole 330 penetrating the supporter 300.
  • the mounting post 310 is provided on the stepped surface. On 320, in this way, the depth of the stepped surface 320 recessed downwards fills the height of the mounting post 310, preventing the mounting post 310 from protruding from the top surface of the support 300 and occupying more space or forming a connection gap.
  • first connecting holes 622 there are three first connecting holes 622, three corresponding second connecting holes 513, three corresponding mounting posts 310, three connecting members 900, and three connecting members 900 in a triangular configuration.
  • the two hinges 600 and the support 300 are fixedly connected to be more stable.
  • the number of the first limiting planes 611 and the first connecting holes 622 are the same, both of which are three, and the first connecting holes 622 and the first limiting planes 611 are alternately arranged at intervals. That is, a first connecting hole 622 is provided between the two first limiting planes 611, and a first limiting plane 611 is provided between the two first connecting holes 622.
  • the top of the second hinge 600 is a mating portion 610, and the bottom has a connecting portion 630.
  • the connecting portion 630 is a cylindrical structure.
  • the diameter of the cylinder is slightly larger than the diameter of the bottom of the fitting portion 610. Because the inner wall surface of the second spherical arc surface in the ball head is gradually increased from bottom to top, the diameter of the cylinder is designed to be slightly larger than the diameter of the bottom of the mating portion 610. In this way, on the one hand, the compactness of the second hinge 600 part is maintained.
  • the connecting piece 900 can also pass through the connecting portion 630 when the connecting portion 900 passes through the fitting portion 610 through the first connecting hole 622, so that the connecting portion 610 and the connecting portion 630 of the second hinge 600 are connected through the connecting piece 900 as As a whole, it is possible to avoid instability caused by the detachment from the connecting portion 630 when only the mating portion 610 is connected to the support 300.
  • a positioning structure for limiting the connecting member 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 an outer wall of the connecting portion 630 and through which the connecting member 900 can pass, and is located below the positioning boss 640 along the height direction of the connecting portion 630.
  • the recess 650 for receiving the connecting member 900.
  • a semi-circular hole 641 is provided on the positioning boss 640 for the connecting member 900 to pass through, or a circular hole may be provided, or the positioning boss 640 may be directly designed as a positioning ring for the connecting member 900 to pass through.
  • the elastic member 800 is preferably a spring.
  • the spring is disposed in a pre-compressed state between the hinge cover 700 and the support 300.
  • the mounting structure of the spring is shown in Figures 3 and 9.
  • the bottom center of the hinge cover 700 extends around the center hole to form a first ring-shaped protrusion 710.
  • a second ring-shaped protrusion 340 is provided on the step surface 320 of the support member 300 and located at the edge of the center hole.
  • the first annular protrusion 710 is provided, and the bottom of the spring is sleeved on the second annular protrusion 340.
  • recessed holes may be provided on the bottom of the hinge cover 700 and the stepped surface 320 of the support 300, and two ends of the spring are respectively disposed in the recessed holes.
  • the spring may be replaced by other retractable and resettable elastic members. Such as shrapnel.
  • the shaving unit 400 further includes a cover plate 420 provided on the casing 410, a bracket 430 provided on the cover plate 420, and at least one cutter head assembly 440 (a knife in this embodiment) provided on the bracket 430.
  • a cover plate 420 provided on the casing 410
  • a bracket 430 provided on the cover plate 420
  • at least one cutter head assembly 440 (a knife in this embodiment) provided on the bracket 430.
  • the edge of the first mating 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, and the edge of the mounting hole 411 is provided.
  • There is at least one stopper 412 a first avoidance groove 515 is provided on the annular flange 514 corresponding to the stopper 412, the hinge cover 700 is covered in the first mating groove 510, and the edge of the hinge cover 700 is convex outward
  • At least one locking block 720 that can be locked at the blocking block 412 is extended.
  • the hinge cover 700 is fixed on the housing 410 by the latching of the block 720 and the stopper 412, and at the same time, the first hinge 500 is restricted to be located on the first hinge 500 because the hinge cover 700 is covered on the first hinge 500.
  • the first hinge 500, the housing 410, and the hinge cover 700 are connected as a whole.
  • At least one positioning post 413 is also provided at the edge of the mounting hole 411 for fast positioning.
  • the annular flange 514 is provided with at least one positioning post 413 when the annular flange 514 rotates Semi-circular positioning hole 516.
  • the positioning post 413 and the semi-circular positioning hole 516 not only play a positioning role, but also support and position a transmission structure in the housing 410.
  • the position of the stopper 412 is higher than the edge of the mounting hole 411. In this way, the gap between the stopper 412 and the edge of the mounting hole 411 forms a locking slot 414 that can be locked in when the locking block 720 rotates horizontally.
  • a stop block 415 is provided on one side of the card slot 414. When the card block 720 rotates within the card slot 414 by a certain angle, the stop block 415 does not continue to rotate.
  • the hinge cover 700 is installed in place, and at the same time, It is convenient for the hinge cover 700 to rotate, and a second avoidance slot 730 for avoiding the stopper 412 is also provided on the edge of the hinge cover 700, and the clamping block 720 is provided at the second avoidance slot 730.
  • the hinge cover 700 is first covered on the first hinge 500.
  • the hinge cover 700 is placed on the top surfaces of the three positioning blocks 512, and the second avoidance grooves 730 correspond to
  • the hinge cover 700 is rotated again, so that the block 720 is rotated into the slot 414 until it stops at the limit block 415 to complete the installation of the hinge cover 700.
  • the clamping groove 414 limits the clamping block 720 in the direction of the central axis L, and the rotation angle of the clamping block 720 is restricted by the limiting block 415 and the second avoiding groove 730 in the circumferential direction.
  • three stoppers 412 are provided, the three stoppers 412 are evenly distributed on the edge of the mounting hole 411, and three positioning posts 413 are also provided.
  • the three positioning posts 413 and the three stoppers 412 are alternately spaced and Evenly distributed on the edges of the mounting holes 411. That is, a stopper 412 is disposed between the two positioning posts 413, and a positioning post 413 is disposed between the two stoppers 412.
  • the alternately spaced structure makes the fixing of the first hinge 500 more stable and reliable.
  • the hinge cover 700 is fixed by using the above-mentioned screwing and snap-in detachable method. In other embodiments, the hinge cover 700 may also be fixed by screws, glue, or ultrasonic welding.
  • the blade floating structure 200 further includes a flexible support 210.
  • the flexible bracket 210 is wrapped around 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. Specifically, the top of the flexible bracket 210 also extends outward to form an annular convex edge 211.
  • the annular convex edge 211 is placed on the edge of the mounting hole 411.
  • the annular flange 514 of the first hinge 500 is pressed on the annular convex edge 211.
  • a ring-shaped slot 350 is provided on the top outer wall of the support member 300, and the bottom of the flexible bracket 210 is sleeved on the ring-shaped slot 350 of the support member, so that the top and bottom of the flexible bracket 210 are fixed.
  • a flexible support 210 is provided here to shield the exposed part between the housing 410 and the support 300, which improves the appearance of the shaver, and also protects the internal components, and also plays a certain role in the shaving unit 400. Support role.
  • the cutter head floating structure 200 provided in the second embodiment of the present invention is substantially the same as the cutter head floating structure 200 in the first embodiment, except that the shape of the first engaging groove 510 and the engaging portion 610 are different.
  • the first mating groove 510 has a first plane 518 therein, the first plane extends horizontally inward along the bottom edge of the first mating groove 510, and the surface of the mating portion 610 has a second mating with the first plane 518 Plane 612.
  • the second plane 612 is a bottom plane of the mating portion 610.
  • the second plane 612 of the mating portion 610 overlaps the first plane 518 in the first mating groove 510.
  • the second plane 612 and the first plane 518 can rotate with each other, so that the relative rotation between the first hinge 500 and the second hinge 600 can also be achieved, and the shaving unit 400 in the first embodiment can also be realized. Requirements for 360 ° rotation.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

一种剃须刀及其刀头浮动结构（200），刀头浮动结构（200）包括支撑件（300）、剃须单元（400）；设于剃须单元（400）内的第一铰链（500），第一铰链（500）内具有第一配合槽（510）；第二铰链（600），其顶部具有配合部（610），第一配合槽（510）与配合部（610）之间设有限位结构（220），第二铰链（600）的底部穿过第一铰链（500）伸入安装于支撑件（300）中；弹性件（800），穿过第一铰链（500）与第二铰链（600），且两端分别抵接于剃须单元（400）与支撑件（300）；按压剃须单元（400），第一铰链（500）与第二铰链（600）之间的限位结构（200）分离，弹性件（800）被压缩以使第一铰链（500）带动剃须单元（400）作360°转动，当施加于剃须单元（400）上的外力减小，弹性件（800）弹性回复向上推动剃须单元（400）向上移动，从而实现剃须单元（400）的上下浮动。

Description

剃须刀及刀头浮动结构 技术领域
本发明属于技术领域，更具体地说，是涉及一种剃须刀及其刀头浮动结构。
 背景技术
在个人护理用品领域，如电动剃须刀中，大部分剃须单元与支撑结构之间为固定连接，即是剃须单元不能相对于支撑结构运动，而位于剃须单元上的刀头组件在内部传动结构带动下转动进行剃须操作，这种结构虽然实现剃须需求，但是剃须单元在皮肤表面移动时，剃须单元与皮肤之间是生硬抵触，完全依靠人手持握力来调整剃须力度，当感觉剃须单元与皮肤接触较紧时，通过人手将剃须刀按压松一点，反之，则按压紧一点，在整个剃须过程中，手部处于紧张状态，剃须完成后，可能会有酸痛感，使用体验极差。
为解决这一问题，有些剃须单元利用十字型万向联轴节实现与支撑结构之间的转动，但是这样的结构装配繁琐，不良率增加，而且这种转动结构灵活度不高，未根本解决剃须单元与皮肤之间的自适应能力，不能提供良好的用户体验。
 技术问题
本发明实施例的目的在于：第一方面，提供一种刀头浮动结构，用以解决现有技术中存在的剃须刀中剃须单元相对支撑结构的转动结构复杂、灵活度不高、用户体验差的技术问题。
第二方面，提供一种剃须刀，用以解决现有技术中存在的剃须刀中剃须单元相对支撑结构的转动结构复杂、灵活度不高、用户体验差的技术问题。
 技术解决方案
为解决上述技术问题，本发明实施例采用的技术方案是：
第一方面，提供了一种刀头浮动结构，包括，
支撑件；
剃须单元，设于所述支撑件上方；
第一铰链，设于所述剃须单元内，所述第一铰链内具有第一配合槽，所述第一配合槽的底部贯通所述第一铰链；
第二铰链，其顶部具有置于所述第一配合槽内的配合部，所述第一配合槽与所述配合部之间设有防止相对转动且可沿所述第一配合槽中心轴线方向上分离的限位结构，所述配合部内设有贯通至所述第二铰链底部的第一中心孔，所述第二铰链的底部穿过所述第一铰链伸入安装于所述支撑件中；
弹性件，穿设于所述第一配合槽及所述第二铰链的第一中心孔内，所述弹性件的顶端抵接于所述剃须单元，所述弹性件的底端抵接于所述支撑件。
进一步地，所述剃须单元包括外壳及铰链盖板，所述外壳具有安装孔，所述第一铰链通过所述铰链盖板固定于所述安装孔处，所述第二铰链于所述安装孔处伸出与所述支撑件固定连接，所述弹性件的顶端抵接于所述铰链盖板。
进一步地，所述第一配合槽内具有第一球形弧面，所述配合部表面具有与所述第一球形弧面配合的第二球形弧面；或者，所述第一配合槽内具有第一平面，所述配合部表面具有与所述第一平面配合的第二平面。
进一步地，所述限位结构包括设于所述配合部外表面的第一限位平面以及设于所述第一配合槽内可与所述第一限位平面贴合的第二限位平面。
进一步地，所述第一配合槽内设有定位块，所述第二限位平面设于所述定位块的内侧且朝向所述第一配合槽的中心。
进一步地，所述第一限位平面为多个，多个所述第一限位平面均匀分布于所述配合部外壁面；所述第二限位平面为多个，多个所述第二限位平面均匀设置于所述第一配合槽内。
进一步地，所述第二铰链通过连接件与所述支撑件固定连接。
进一步地，所述配合部上设有第二配合槽，所述第二配合槽壁设有贯通的至少一第一连接孔，所述第一配合槽壁设有与所述第一连接孔对应且贯通的至少一第二连接孔，所述支撑件内设有安装柱，所述连接件为穿过所述第一连接孔、第二连接孔伸入所述安装柱内的螺钉。
进一步地，所述第二铰链的底部具有连接部，所述连接部上对应所述第一连接孔处设有用于限位所述连接件的定位结构。
进一步地，所述定位结构包括设于所述连接部的外壁上可供所述连接件穿过的定位凸台，以及位于所述定位凸台下方沿所述连接部高度方向上设置且用于容置所述连接件的凹陷。
进一步地，所述支撑件的顶部具有向内凹陷的台阶面，所述台阶面上设有贯通所述支撑件的第二中心孔，所述安装柱设于所述台阶面上，所述台阶面上且位于所述二中心孔边缘设有环状凸起，所述弹性件的底部套设于所述环状凸起上。
进一步地，所述第一限位平面的数量为多个，所述第一连接孔的数量与所述第一限位平面数量相同，两所述第一限位平面之间设置一所述第一连接孔。
进一步地，所述安装孔的边缘设有至少一挡块，所述第一配合槽边缘向外延伸形成环状凸缘，所述环状凸缘置于所述安装孔边缘，所述环状凸缘上对应所述挡块处设有第一避位槽，所述铰链盖板盖设于所述第一配合槽内，且所述铰链盖板的边缘上设有至少一可卡止于所述挡块处的卡块。
进一步地，所述挡块与所述安装孔边缘之间设有可供所述卡块水平转动时卡入的卡槽，所述卡槽的一侧设有抵挡所述卡块的限位块，所述铰链盖板边缘设有可避让所述挡块的第二避位槽，所述卡块设于所述第二避位槽处。
进一步地，所述挡块为多个，多个所述挡块均匀分布于所述安装孔边缘；所述卡块为多个，多个所述卡块均匀分布于所述铰链盖板边缘。
进一步地，所述安装孔边缘还设有至少一定位柱，所述环状凸缘上设有当所述环状凸缘转动时可供至少一所述定位柱卡入的半圆形定位孔。
进一步地，所述定位柱为多个，所述挡块为多个，多个所述定位柱与多个所述挡块交替间隔且均匀分布于所述安装孔边缘。
进一步地，所述剃须单元还包括设于所述外壳上的盖板、设于所述盖板上的支架、设于所述支架上的至少一刀头组件，以及设于所述外壳与所述盖板围合空间内用于驱动所述刀头组件的传动结构。
进一步地，还包括一包裹于所述第二铰链外的柔性支架，所述柔性支架的顶部置于所述安装孔，所述第一铰链压设于所述柔性支架的顶部边缘，所述柔性支架的底部套设于所述支撑件外壁上。
进一步地，所述支撑件顶部外壁设有环形卡槽，所述柔性支架的底部套设于所述环形卡槽上。
第二方面，提供了一种剃须刀，包括机身，还包括设于机身上的上述的刀头浮动结构。
 有益效果
与现有技术相比，本发明实施例提供的剃须刀及刀头浮动结构的有益效果在于：第一铰链固定于剃须单元内，第一铰链与剃须单元即组成一整体；而第二铰链与支撑件固定连接，第一铰链与第二铰链通过第一配合槽与配合部呈配合状态，第一铰链与第二铰链之间设置限位结构，同时设置有弹性件，当剃须刀工作时，剃须单元与脸部接触受脸部作用力挤压时，剃须单元向下移动挤压弹性件，同时第一铰链也随之向下移动，当向下作用力大于弹性件的弹力时，弹性件被压缩，在此过程中，第一铰链与第二铰链之间防转动的限位结构分离以使剃须单元可随第一铰链绕第一配合槽的中心转动，从而实现剃须单元360°转动，在转动过程中，弹性件为剃须单元与支撑件之间起到柔性连接，使得剃须单元360°转动更顺畅；而当剃须单元作用于脸部不同部位时，脸部反作用于剃须刀的外力改变，当施加于剃须单元上的外力减小，即外力小于弹性件的弹力时，弹性件弹性回复向上推动剃须单元，第一铰链及剃须单元向上移动，第一铰链与第二铰链之间的限位结构重新配合阻止第一铰链与第二铰链相对转动，在此过程中，剃须单元沿中心轴线L上下浮动，更能适应脸部曲线变化，避免与脸部的硬性接触，从而给用户带来更舒适的使用体验。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本发明实施例一提供的剃须刀的结构示意图；
图2为本发明实施例一提供的剃须刀中刀头浮动结构的侧视图；
图3为本发明实施例一提供的剃须刀中刀头浮动结构的纵向剖视图；
图4为本发明实施例一提供的剃须刀中刀头浮动结构中的第一铰链的结构示意图；
图5为本发明实施例一提供的剃须刀中刀头浮动结构中的第二铰链的结构示意图；
图6为本发明实施例一提供的剃须刀中刀头浮动结构中的第一铰链与第二铰链装配前的分解示意图；
图7为本发明实施例一提供的剃须刀中刀头浮动结构中的第一铰链与第二铰链装配俯视图；
图8为本发明实施例一提供的剃须刀中刀头浮动结构中的第一铰链与第二铰链装配后纵向剖视图；
图9为本发明实施例一提供的剃须刀中刀头浮动结构中的支撑件的结构示意图；
图10为本发明实施例一提供的剃须刀中刀头浮动结构中的铰链盖板的结构示意图；
图11为本发明实施例一提供的剃须刀中刀头浮动结构中的铰链盖板与外壳的装配前的分解示意图；
图12为本发明实施例一提供的剃须刀中刀头浮动结构中的铰链盖板与外壳的装配俯视图；
图13为本发明实施例一提供的剃须刀中刀头浮动结构的分解示意图；
图14为图11中A处放大图；
图15为本发明实施例二提供的刀头浮动结构的分解示意图；
图16为本发明实施例二提供的刀头浮动结构的纵向剖视图；
其中，附图中的标号如下：
100-机身；200-刀头浮动结构；210-柔性支架；211-环状凸边；220-限位结构；300-支撑件；310-安装柱；320-台阶面；330-第二中心孔；340-第二环状凸起；350-环状卡槽；400-剃须单元；410-外壳；411-安装孔；412-挡块；413-定位柱；414-卡槽；415-限位块；420-盖板；430-支架；440-刀头组件；500-第一铰链；510-第一配合槽；511-第二限位平面；512-定位块；513-第二连接孔；514-环状凸缘；515-第一避位槽；516-半圆形定位孔；517-第一球形弧面；518-第一平面；600-第二铰链；610-配合部；611-第一限位平面；612-第二平面；620-第二配合槽；621-第一中心孔；622-第一连接孔；630-连接部；640-定位凸台；641-半圆形孔；650-凹陷；700-铰链盖板；710-第一环状凸起；720-卡块；730-第二避位槽；800-弹性件；900-连接件。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
需说明的是，当部件被称为“固定于”或“设置于”另一个部件，它可以直接在另一个部件上或者间接在该另一个部件上。当一个部件被称为是“连接于”另一个部件，它可以是直接连接到另一个部件或者间接连接至该另一个部件上。
还需说明的是，本发明实施例的附图中相同或相似的标号对应相同或相似的部件；在本发明的描述中，需要理解的是，若有术语“上”、“下”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此，附图中描述位置关系的用语仅用于示例性说明，不能理解为对本专利的限制，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
本发明实施例提供的刀头浮动结构，主要应用于剃须刀，以下以剃须刀为例进行详细描述。需要说明的是，刀头浮动结构也可以适用于其他个人护理用品，如理发剪、剃毛剪等等。
本发明实施例提供的刀头浮动结构包括支撑件、剃须单元，第一铰链，第二铰链及弹性件。其中，剃须单元设于支撑件上方，第一铰链设于剃须单元内，第一铰链内具有第一配合槽，第一配合槽的底部贯通第一铰链；第二铰链，其顶部具有置于第一配合槽内的配合部，第一配合槽与配合部之间设有防止相对转动且可沿第一配合槽中心轴线方向上分离的限位结构，配合部内设有贯通至第二铰链底部的第一中心孔，第二铰链的底部穿过第一铰链伸入固定于支撑件中；而弹性件，穿设于第一配合槽及第二铰链的第一中心孔内，弹性件的顶端抵接于剃须单元，弹性件的底端抵接于支撑件。
基于上述刀头浮动结构，由于第一铰链设于剃须单元内，第一铰链与剃须单元即组成一整体；而第二铰链与支撑件固定连接为一整体，第一铰链与第二铰链通过配合槽与配合部呈配合状态，也可看作上述两个整体呈配合状态，当未设置限位结构时，两个整体可相对转动，这样，对整个剃须刀而言，开机并未剃须时，整个剃须单元呈转动状态，这种情况使得剃须单元不稳，不便于剃须操作；因此，需要在两个整体之间配合的部位，即第一铰链与第二铰链之间设置限位结构，但当设置固定的保持第一铰链与第二铰链之间相对位置不变的限位结构后，第一铰链与第二铰链之间不能转动，这样剃须时剃须单元灵活性差，与皮肤接触呆板，使用体验差。而本发明实施例中，即在第一铰链与第二铰链之间设置弹性件，通过按压第一铰链使限位结构在第一配合槽轴线方向上分离，通过弹性件的弹性回复力使分离的限位结构再配合，这样，在剃须时，根据剃须力度不同，限位结构不断交替分离、配合，从而使第一铰链与第二铰链之间实现相互转动或相对静止，且在分离与配合过程中，通过弹性件的伸、缩实现剃须单元在弹性件伸、缩方向上的浮动，从而使用户获得良好的剃须体验。
而在实际应用中，针对上述结构可以由不同的实施例来实现，以下结合具体附图对本发明提供的一种刀头浮动结构的实现通过具体实施例进行详细说明。
实施例一
参考图1至图3，本发明实施例一提供的剃须刀包括机身100以及设于机身100上的刀头浮动结构200。其中，刀头浮动结构200包括支撑件300、设于支撑件300上方的剃须单元400、设于剃须单元400内的第一铰链500、与第一铰链500配合的第二铰链600、以及弹性件800。第二铰链600的顶端与第一铰链500配合且二者之间设有防转动的限位结构220，而第二铰链600的底端与支撑件300固定连接。具体地，第一铰链500内具有第一配合槽510，第一配合槽510内具有第一球形弧面517，第一球形弧面517的球心为O，第一配合槽510具有中心轴线L，第一配合槽510的底部贯通第一铰链500，即第一铰链500中空状。
而第二铰链600，其顶部具有置于第一配合槽510内的配合部610，配合部610呈球形状，配合部610外壁面与第一球形弧面517的弧面匹配，这样，配合部610置于第一配合槽510时，配合部610的外壁面能更好地与第一球形弧面517贴合。配合部610与第一配合槽510之间设有防止相对转动的限位结构220。配合部610内设有第二配合槽620，第二配合槽620底部设有贯通至第二铰链600底部的第一中心孔621，第二铰链600的底部穿过第一铰链500伸入固定于支撑件300中，这样，第二铰链600即与支撑件300固定连接为一体。
进一步地，本实施例中，剃须单元400包括外壳410及铰链盖板700。其中，外壳410整体呈三瓣状，中心具有安装孔411，第一铰链500通过铰链盖板700固定于安装孔411处，与第一铰链500配合的第二铰链600于安装孔411处伸出并与支撑件300连接。弹性件800的顶端抵接于铰链盖板700。在本实施例中，第一铰链500通过铰链盖板700固定于安装孔411处。在其他实施例中，也可以省略铰链盖板700，采用第一铰链500自身结构设计或其他零件将其固定于安装孔411处。
弹性件800，由第二铰链600的第一中心孔621、第二配合槽620及第一配合槽510穿过，且弹性件800的顶端抵接在铰链盖板700的底部，弹性件800的底端抵接在支撑件300顶部。
非工作状态下，弹性件800的弹力分别沿中心轴线L向两端推顶铰链盖板700及支撑件300，从而使与铰链盖板700固定连接的第一铰链500及与支撑件300固定连接的第二铰链600之间更紧密地以球形弧面贴合。
当剃须刀工作时，剃须单元400与脸部接触受脸部作用力挤压时，剃须单元400带动铰链盖板700向下移动挤压弹性件800，同时第一铰链500也随之向下移动，当向下作用力大于弹性件800的弹力时，弹性件800被压缩，在此过程中，第一铰链500与第二铰链600之间防转动的限位结构220分离以使铰链盖板700及剃须单元400可随第一铰链500绕第一球形弧面517的球心O转动，从而实现剃须单元400在360°范围内转动，在转动过程中，弹性件800为剃须单元400与支撑件300之间起到柔性连接，使得剃须单元400的360°转动更顺畅；而当剃须单元400作用于脸部不同部位时，脸部反作用于剃须刀的外力改变，当施加于剃须单元400上的外力减小，即外力小于弹性件800的弹力时，弹性件800弹性回复向上推动铰链盖板700，第一铰链500及剃须单元400向上移动，第一铰链500与第二铰链600之间的限位结构220重新配合阻止第一铰链500与第二铰链600相对转动，在此过程中，剃须单元400沿中心轴线L上下浮动，更能适应脸部曲线变化，避免与脸部的硬性接触，从而给用户带来更舒适的剃须体验。
进一步地，为便于第一铰链500与第二铰链600之间限位不能相互转动，同时也便于第一铰链500与第二铰链600分离时，限位结构220不阻挡第一铰链500的转动，本实施例中，限位结构220设计的简单、巧妙，即防止圆周方向的转动，又不影响轴向方向的分离。
具体地，参照图4至图8，限位结构220包括设于配合部610外壁面上的第一限位平面611以及设于第一配合槽510内可与第一限位平面611贴合的第二限位平面511。由于第一球形弧面517与配合部610外壁面均为球形弧面，二者直接配合时无摩擦无阻力可相互转动，而设置的第一限位平面611与第二限位平面511之间为平面贴合，第一铰链500与配合部610之间相互转动时，第一限位平面611与第二限位平面511受两平面之间摩擦力作用无法转动，从而在圆周方向上实现限位。同时，在轴向上两平面贴合并不妨碍第一铰链500的上移或下移。
具体地，第一限位平面611可看作沿配合部610外壁面纵向切削形成的平面。而由于第一球形弧面517为弧面，为便于设置第二限位平面511，在第一配合槽510内设置定位块512，第二限位平面511设于定位块512的内侧朝向第一配合槽510的中心。本实施例中，定位块512呈立方体块状结构，第二限位平面511即为立方体靠内侧的一个表面。
本实施例中，第一限位平面611为三个，三个第一限位平面611均匀分布于配合部610外壁面；第二限位平面511为三个，三个第二限位平面511均匀设置于第一配合槽510内。通过三组平面贴合，能很好地将第一铰链500与第二铰链600之间进行限位。而且，由于呈立方体状的定位块512顶面也为平面，这样，三个定位块512之间形成三角设置，三个定位块512的顶面即形成稳定的支撑面，用于更可靠地支撑铰链盖板700。当然，第一限位平面611与第二限位平面511的数量也可以为一个、两个，或四个，或更多个等等。
本实施例中，第二铰链600与支撑件300固定连接为一体时，通过连接件900将二者组装固定。通过连接件900的组装，使得第二铰链600与支撑件300之间的固定连接为可拆卸式，这样，便于拆卸维修，也方便产品生产时的组装。当然，在保证第二铰链600与支撑件300连接可靠的前提下，在其他实施例中，也可以采用其他可拆卸的固定连接方式，如卡扣连接等。
具体地，第二铰链600的配合部610的第二配合槽620内设有第一连接孔622，与配合部610贴合的第一配合槽510内设有与第一连接孔622对应的第二连接孔513。连接件900具体为螺钉。而在支撑件300内设有安装柱310，安装柱310内设有螺孔（图中未标号）。螺钉穿过第一连接孔622、第二连接孔513旋拧至安装柱310的螺孔内。采用螺钉旋拧的方式固定第二铰链600，结构简单，便于加工，且装配也容易。
如图9所示，支撑件300大体呈圆柱状结构，其顶部具有向内凹陷的台阶面320，台阶面320上设有贯通支撑件300的第二中心孔330，安装柱310设于台阶面320上，这样，台阶面320向下凹进的深度填补安装柱310的高度，避免安装柱310凸出于支撑件300顶面而占用更多的空间或形成连接缝隙。
进一步地，第一连接孔622为三个，第二连接孔513对应也为三个，安装柱310对应也为三个，连接件900也为三个，三个连接件900呈三角形设置将第二铰链600与支撑件300固定连接地更稳固。而且，对于第二铰链600而言，其上设置的第一限位平面611与第一连接孔622数量相同，均为三个，第一连接孔622与第一限位平面611交替间隔设置，即是，两个第一限位平面611之间设置一第一连接孔622，两个第一连接孔622之间具有第一限位平面611。
本实施例中，第二铰链600的顶部为配合部610，且底部具有连接部630，连接部630具体为圆筒状结构。圆筒的直径略大于配合部610底部直径。由于球头内的第二球形弧面的内壁面由下至上是逐渐增大，将圆筒的直径设计呈略大于配合部610底部直径，这样，一方面保持第二铰链600零件的小巧性，另一方面，也使连接件900由第一连接孔622穿出配合部610时能穿过连接部630，从而通过连接件900将第二铰链600的配合部610与连接部630之间连接为整体，避免仅配合部610与支撑件300连接时与连接部630脱离而造成不稳的情况。具体地，连接部630上对应第一连接孔622处设置用于限位连接件900的定位结构。
具体地，如图5所示，定位结构包括设于连接部630的外壁上可供连接件900穿过的定位凸台640，以及位于定位凸台640下方沿连接部630高度方向设置的用于容置连接件900的凹陷650。本实施例中，在定位凸台640上设置半圆形孔641供连接件900穿过，也可以设置圆形孔，或者直接将定位凸台640设计为定位环供连接件900穿过。
本实施例中，弹性件800优选为弹簧。弹簧呈预压缩状设置于铰链盖板700与支撑件300之间。弹簧的安装结构如图3、图9所示。铰链盖板700底部中心环绕中心孔延伸形成一第一环状凸起710，同时，在支撑件300的台阶面320上且位于中心孔边缘设有第二环状凸起340，弹簧的顶部套设于第一环状凸起710上，弹簧的底部套设于第二环状凸起340上。在其他实施例中，在铰链盖板700底部与支撑件300的台阶面320上也可以分别设置凹孔，弹簧的两端分别设置于凹孔内。
在其他实施例里，弹簧也可以采用其它可收缩、可复位的弹性部件替代。如弹片。
参照图11至图13，剃须单元400还包括设于外壳410上的盖板420、设于盖板420上的支架430、设于支架430上的至少一刀头组件440（本实施例中刀头组件440为三个），以及设于外壳410与盖板420围合空间内用于驱动刀头组件440的传动结构（图中未示出）。
请再参照图4，第一铰链500的第一配合槽510边缘向外延伸形成环状凸缘514，在安装时，环状凸缘514叠置于安装孔411边缘，安装孔411的边缘设有至少一挡块412，环状凸缘514上对应挡块412处设有第一避位槽515，铰链盖板700盖设于第一配合槽510，且铰链盖板700的边缘向外凸伸至少一可卡止于挡块412处的卡块720。这样，通过卡块720与挡块412的卡接，将铰链盖板700固定于外壳410上，同时，由于铰链盖板700盖设于第一铰链500上，从而使得第一铰链500被限位于外壳410与铰链盖板700之间，使第一铰链500、外壳410及铰链盖板700连接为一整体。
第一铰链500在安装时，为了快速定位，安装孔411边缘还设置有至少一定位柱413，环状凸缘514上设有当环状凸缘514转动时可供至少一定位柱413卡入的半圆形定位孔516。定位柱413与半圆形定位孔516不仅起到定位作用，也可以对外壳410内传动结构起到支撑定位作用。
进一步地，参照图14，挡块412位置高于安装孔411边缘，这样，挡块412与安装孔411边缘之间的缝隙即形成可供卡块720水平转动时卡入的卡槽414，在卡槽414的一侧设有限位块415，当卡块720在卡槽414内转动一定角度时抵止于限位块415不再继续转动，此时，铰链盖板700安装到位，同时，为便于铰链盖板700转动，在铰链盖板700边缘还设置有避让挡块412的第二避位槽730，卡块720设置在第二避位槽730处。这样，在安装时，首先将铰链盖板700盖设在第一铰链500上，具体地说，将铰链盖板700置于三个定位块512的顶面上，将第二避位槽730对应卡块720处，再转动铰链盖板700，使卡块720转动至卡槽414内直至抵止在限位块415处即完成铰链盖板700的安装。此时，卡槽414在中心轴L方向上对卡块720限位，而在圆周方向上由限位块415及第二避位槽730限制卡块720的转动角度。
优选地，本实施例中，挡块412设置有三个，三个挡块412均匀分布于安装孔411边缘，定位柱413也为三个，三个定位柱413与三个挡块412交替间隔且均匀分布于安装孔411边缘。即是，两个定位柱413之间设置一挡块412，两个挡块412之间设置一定位柱413。这样交替间隔设置的结构，使第一铰链500的固定更稳定、可靠。
在本实施例中，铰链盖板700采用上述旋拧并卡入的可拆卸方式固定，其他实施例中，铰链盖板700也可以采用螺钉固定、胶粘合、或超声波焊接等方式固定。
请再参照图3、图9及图13，本实施例中，刀头浮动结构200还包括一柔性支架210。柔性支架210包裹于第二铰链600外侧。即，柔性支架210呈中空的圆筒状结构，第二铰链600位于柔性支架210中空结构内。具体地，柔性支架210的顶部也向外延伸形成环状凸边211，环状凸边211置于安装孔411边缘，第一铰链500的环状凸缘514压设于环状凸边211上，而支撑件300顶部外壁设有环形卡槽350，柔性支架210的底部套设于支撑件环形卡槽350上，从而实现柔性支架210顶部与底部的固定。在此处设置柔性支架210，对外壳410与支撑件300之间裸露的部分进行遮挡，提升剃须刀的外观效果，也对内部元件起到保护作用，同时对剃须单元400也起到一定的支撑作用。
实施例二
参照图15、图16，本发明实施例二提供的刀头浮动结构200与实施例一中刀头浮动结构200大体相同，不同之处在于，第一配合槽510与配合部610的形状不同。具体地，本实施例中，第一配合槽510内具有第一平面518，第一平面沿第一配合槽510底部边缘向内水平延伸，配合部610表面具有与第一平面518配合的第二平面612。第二平面612为配合部610的底部平面。当第二铰链600的配合部610伸入第一铰链500的第一配合槽510时，配合部610的第二平面612叠置在第一配合槽510内的第一平面518，当限位结构220分离时，第二平面612与第一平面518之间可以相互转动，从而也可以实现第一铰链500与第二铰链600之间的相对转动，同样可以实现实施例一中剃须单元400在360°范围内转动的要求。
本实施例其他未列举结构与实施例一基本相同，此处不再赘述。
以上仅为本发明的优选实施例而已，并不用于限制本发明。对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的权利要求范围之内。

Claims (21)

  1. 一种刀头浮动结构，其特征在于：包括，
    支撑件；
    剃须单元，设于所述支撑件上方；
    第一铰链，设于所述剃须单元内，所述第一铰链内具有第一配合槽，所述第一配合槽的底部贯通所述第一铰链；
    第二铰链，其顶部具有置于所述第一配合槽内的配合部，所述第一配合槽与所述配合部之间设有防止相对转动且可沿所述第一配合槽中心轴线方向上分离的限位结构，所述配合部内设有贯通至所述第二铰链底部的第一中心孔，所述第二铰链的底部穿过所述第一铰链伸入安装于所述支撑件中；
    弹性件，穿设于所述第一配合槽及所述第二铰链的第一中心孔内，所述弹性件的顶端抵接于所述剃须单元，所述弹性件的底端抵接于所述支撑件。
  2. 根据权利要求1所述的刀头浮动结构，其特征在于，所述剃须单元包括外壳及铰链盖板，所述外壳具有安装孔，所述第一铰链通过所述铰链盖板固定于所述安装孔处，所述第二铰链于所述安装孔处伸出与所述支撑件固定连接，所述弹性件的顶端抵接于所述铰链盖板。
  3. 根据权利要求1所述的刀头浮动结构，其特征在于，所述第一配合槽内具有第一球形弧面，所述配合部表面具有与所述第一球形弧面配合的第二球形弧面；或者，所述第一配合槽内具有第一平面，所述配合部表面具有与所述第一平面配合的第二平面。
  4. 根据权利要求1至3中任一项所述的刀头浮动结构，其特征在于，所述限位结构包括设于所述配合部外表面的第一限位平面以及设于所述第一配合槽内可与所述第一限位平面贴合的第二限位平面。
  5. 根据权利要求4所述的刀头浮动结构，其特征在于，所述第一配合槽内设有定位块，所述第二限位平面设于所述定位块的内侧且朝向所述第一配合槽的中心。
  6. 根据权利要求4所述的刀头浮动结构，其特征在于：所述第一限位平面为多个，多个所述第一限位平面均匀分布于所述配合部外壁面；所述第二限位平面为多个，多个所述第二限位平面均匀设置于所述第一配合槽内。
  7. 根据权利要求1所述的刀头浮动结构，其特征在于：所述第二铰链通过连接件与所述支撑件固定连接。
  8. 根据权利要求7所述的刀头浮动结构，其特征在于：所述配合部上设有第二配合槽，所述第二配合槽壁设有贯通的至少一第一连接孔，所述第一配合槽壁设有与所述第一连接孔对应且贯通的至少一第二连接孔，所述支撑件内设有安装柱，所述连接件为穿过所述第一连接孔、第二连接孔伸入所述安装柱内的螺钉。
  9. 根据权利要求8所述的刀头浮动结构，其特征在于：所述第二铰链的底部具有连接部，所述连接部上对应所述第一连接孔处设有用于限位所述连接件的定位结构。
  10. 根据权利要求9所述的刀头浮动结构，其特征在于：所述定位结构包括设于所述连接部的外壁上可供所述连接件穿过的定位凸台，以及位于所述定位凸台下方沿所述连接部高度方向上设置且用于容置所述连接件的凹陷。
  11. 根据权利要求8所述的刀头浮动结构，其特征在于：所述支撑件的顶部具有向内凹陷的台阶面，所述台阶面上设有贯通所述支撑件的第二中心孔，所述安装柱设于所述台阶面上，所述台阶面上且位于所述二中心孔边缘设有环状凸起，所述弹性件的底部套设于所述环状凸起上。
  12. 根据权利要求8至11任一项所述的刀头浮动结构，其特征在于：所述第一限位平面的数量为多个，所述第一连接孔的数量与所述第一限位平面数量相同，两所述第一限位平面之间设置一所述第一连接孔。
  13. 根据权利要求2所述的刀头浮动结构，其特征在于：所述安装孔的边缘设有至少一挡块，所述第一配合槽边缘向外延伸形成环状凸缘，所述环状凸缘置于所述安装孔边缘，所述环状凸缘上对应所述挡块处设有第一避位槽，所述铰链盖板盖设于所述第一配合槽内，且所述铰链盖板的边缘上设有至少一可卡止于所述挡块处的卡块。
  14. 根据权利要求13所述的刀头浮动结构，其特征在于：所述挡块与所述安装孔边缘之间设有可供所述卡块水平转动时卡入的卡槽，所述卡槽的一侧设有抵挡所述卡块的限位块，所述铰链盖板边缘设有可避让所述挡块的第二避位槽，所述卡块设于所述第二避位槽处。
  15. 根据权利要求13或14所述的刀头浮动结构，其特征在于：所述挡块为多个，多个所述挡块均匀分布于所述安装孔边缘；所述卡块为多个，多个所述卡块均匀分布于所述铰链盖板边缘。
  16. 根据权利要求13所述的刀头浮动结构，其特征在于：所述安装孔边缘还设有至少一定位柱，所述环状凸缘上设有当所述环状凸缘转动时可供至少一所述定位柱卡入的半圆形定位孔。
  17. 根据权利要求16所述的刀头浮动结构，其特征在于：所述定位柱为多个，所述挡块为多个，多个所述定位柱与多个所述挡块交替间隔且均匀分布于所述安装孔边缘。
  18. 根据权利要求2所述的刀头浮动结构，其特征在于：所述剃须单元还包括设于所述外壳上的盖板、设于所述盖板上的支架、设于所述支架上的至少一刀头组件，以及设于所述外壳与所述盖板围合空间内用于驱动所述刀头组件的传动结构。
  19. 根据权利要求18所述的刀头浮动结构，其特征在于：还包括一包裹于所述第二铰链外的柔性支架，所述柔性支架的顶部置于所述安装孔，所述第一铰链压设于所述柔性支架的顶部边缘，所述柔性支架的底部套设于所述支撑件外壁上。
  20. 根据权利要求19所述的刀头浮动结构，其特征在于：所述支撑件顶部外壁设有环形卡槽，所述柔性支架的底部套设于所述环形卡槽上。
  21. 一种剃须刀，包括机身，其特征在于：还包括设于机身上的根据权利要求1至20项中任一项所述的刀头浮动结构。
PCT/CN2018/097052 2018-07-25 2018-07-25 剃须刀及刀头浮动结构 WO2020019200A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020217002077A KR102560870B1 (ko) 2018-07-25 2018-07-25 면도기 및 블레이드 헤드 부동 구조
EP18927498.8A EP3827939B1 (en) 2018-07-25 2018-07-25 Shaver and blade floating structure
RU2021101328A RU2762888C1 (ru) 2018-07-25 2018-07-25 Бритва и плавающая конструкция режущей головки
PCT/CN2018/097052 WO2020019200A1 (zh) 2018-07-25 2018-07-25 剃须刀及刀头浮动结构

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 (1)

Publication Number Publication Date
WO2020019200A1 true WO2020019200A1 (zh) 2020-01-30

Family

ID=69181082

Family Applications (1)

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

Country Status (4)

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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2667267B2 (ja) * 1988-12-24 1997-10-27 ブラウン、アクチエンゲゼルシャフト 乾式電気シェービング装置
CN101564845A (zh) * 2008-04-25 2009-10-28 曹伟明 多环剃须刀组
CN102873696A (zh) * 2012-09-13 2013-01-16 宁波邦首电器有限公司 剃须刀浮动刀头
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
CN106514732A (zh) * 2016-12-02 2017-03-22 广东罗曼智能科技股份有限公司 一种浮动式剃须刀

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7217486A (zh) * 1972-12-22 1974-06-25
IT1273970B (it) * 1995-02-24 1997-07-11 Teresio Dessilani Rasoio elettrico ad elevata adattabilita' al profilo da radere
RU2124433C1 (ru) * 1997-10-08 1999-01-10 Уфимское приборостроительное производственное объединение Бреющая головка электробритвы
WO2003095158A1 (en) * 2002-05-07 2003-11-20 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
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
WO2014184065A1 (en) * 2013-05-16 2014-11-20 Koninklijke Philips N.V. Shaving head with pivotable shaving unit
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2667267B2 (ja) * 1988-12-24 1997-10-27 ブラウン、アクチエンゲゼルシャフト 乾式電気シェービング装置
CN101564845A (zh) * 2008-04-25 2009-10-28 曹伟明 多环剃须刀组
CN102873696A (zh) * 2012-09-13 2013-01-16 宁波邦首电器有限公司 剃须刀浮动刀头
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
CN106514732A (zh) * 2016-12-02 2017-03-22 广东罗曼智能科技股份有限公司 一种浮动式剃须刀

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3827939A4 *

Also Published As

Publication number Publication date
EP3827939B1 (en) 2024-05-08
KR102560870B1 (ko) 2023-07-27
KR20210024057A (ko) 2021-03-04
EP3827939A1 (en) 2021-06-02
RU2762888C1 (ru) 2021-12-23
EP3827939A4 (en) 2021-07-07

Similar Documents

Publication Publication Date Title
US10960561B2 (en) Razor assembly with spring-biased connecting head
TW201105472A (en) Rotary electric shaver
RU2610982C2 (ru) Усовершенствованная бреющая головка с возможностью регулирования куполообразной формы
RU2121432C1 (ru) Устройство для бритья
JP2002035447A (ja) 回転式電気かみそりの内刃と回転式電気かみそり
KR101795475B1 (ko) 이중 양날 면도기
US20140352152A1 (en) Rotary electric shaver
US20230276588A1 (en) Electronic device and handle thereof
WO2020019200A1 (zh) 剃须刀及刀头浮动结构
WO2020019199A1 (zh) 浮动旋转结构、个人护理装置及按摩器
WO2023246126A1 (zh) 一种刀头可旋转的剃毛器
WO2020177208A1 (zh) 刀头浮动结构及个人护理装置
CN209954715U (zh) 刀头浮动结构及个人护理装置
WO2020019198A1 (zh) 按摩器及按摩头浮动结构
CN214490681U (zh) 剃须刀的浮动刀头结构
CN110757516A (zh) 剃须刀及刀头浮动结构
CN209059912U (zh) 按摩器及按摩头浮动结构
CN208697494U (zh) 电动剃须刀
JPH0654966A (ja) 剃 刀
CN213157593U (zh) 颈部按摩仪及其中间段结构
CN219267233U (zh) 弧形led显示屏
CN220856743U (zh) 电池防水结构及测温装置
CN220088582U (zh) 一种封盖结构、供电装置及电子雾化设备
CN219827217U (zh) 一种可调节角度的风扇
CN216877078U (zh) 颈部按摩仪

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18927498

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20217002077

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2018927498

Country of ref document: EP

Ref document number: 2021101328

Country of ref document: RU

ENP Entry into the national phase

Ref document number: 2018927498

Country of ref document: EP

Effective date: 20210225