WO2024020817A1 - 剃须刀头 - Google Patents

剃须刀头 Download PDF

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Publication number
WO2024020817A1
WO2024020817A1 PCT/CN2022/108059 CN2022108059W WO2024020817A1 WO 2024020817 A1 WO2024020817 A1 WO 2024020817A1 CN 2022108059 W CN2022108059 W CN 2022108059W WO 2024020817 A1 WO2024020817 A1 WO 2024020817A1
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WO
WIPO (PCT)
Prior art keywords
blade
skin
contact area
pressing contact
side wall
Prior art date
Application number
PCT/CN2022/108059
Other languages
English (en)
French (fr)
Inventor
任向荣
任驰
Original Assignee
温州美葆科技技术有限公司
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 温州美葆科技技术有限公司 filed Critical 温州美葆科技技术有限公司
Priority to PCT/CN2022/108059 priority Critical patent/WO2024020817A1/zh
Publication of WO2024020817A1 publication Critical patent/WO2024020817A1/zh

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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
    • B26B19/26—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the type performing different methods of operation simultaneously, e.g. reciprocating and oscillating; of the type having two or more heads of differing mode of operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories

Definitions

  • the present application relates to the field of shaving, and in particular to a shaving head that increases the pressing area on elastic skin during the shaving process to make the elastic skin stretch tighter.
  • shavers As we all know, razors are common daily necessities for people. As for shavers, they can be divided into two categories: electric shavers and manual shavers.
  • a manual shaver it mainly consists of a cutter head and a handle connected to the cutter head.
  • the cutter head it is mainly composed of a cutter head frame and a blade assembled on the cutter head frame.
  • the blade extends along the left and right directions of the cutter head frame, and the blade edge faces the front side wall of the cutter head frame.
  • the front side wall has The skin depression contact portion is used to press down on the elastic skin during shaving.
  • the purpose of this application is to provide a shaving head that increases the pressing area on the elastic skin during the shaving process so that the elastic skin becomes tighter.
  • the shaving head of the present application includes a blade and a head frame with a receiving space.
  • the blade is located in the accommodation space and extends in the left and right direction of the cutter head frame.
  • the blade is assembled at the cutter head frame, and the blade edge of the blade faces the front of the cutter head frame;
  • the head frame has a skin pressing contact area located in front of the blade for pressing down the elastic skin.
  • the rear side of the skin pressing contact area is adjacent to the skin pressing contact area along the front and rear direction of the blade frame.
  • the distance between the blades is a, and the distance between the front side of the skin pressing contact area and the blade adjacent to the skin pressing contact area along the front and rear direction of the blade frame is b, where 0.30mm ⁇ a ⁇ 1.75mm ,2.0mm ⁇ b ⁇ 12.1mm.
  • the skin pressing contact area also extends continuously or intermittently along the left and right direction of the blade frame.
  • the blade frame has a front side wall located in front of the blade, and the skin pressing contact area is formed by the upper surface of the front side wall.
  • the shaving head of the present application further includes a protective member.
  • the head frame has a front side wall located in front of the blade.
  • the protective member is assembled to the front side wall from above and along the front side wall.
  • the blade frame extends in the left and right direction, and the skin pressing contact area is formed by the upper surface of the protective member, or a part of the skin pressing contact area is formed by the upper surface of the protecting member, and the skin pressing contact area is formed by the upper surface of the protective member.
  • the remaining portion of the press contact area is formed by the upper surface of the front side wall located between the guard member and the blade.
  • the upper surface of the front side wall located between the protective member and the blade is spliced together with the upper surface of the protective member.
  • the upper surface of the front side wall located between the protective member and the blade is lower than the upper surface of the protective member.
  • the skin pressing contact area is an arc-shaped surface area or a flat area.
  • the cutter head frame also has a rear side wall located correspondingly behind the blades, and the blades are multiple and are spaced apart along the front and rear direction of the cutter head frame.
  • all the blades are arranged with gradually increasing heights from front to back of the blade frame, and the blades adjacent to the skin pressing contact area are lower than the highest point of the upper surface of the rear side wall.
  • the cutter head frame has a skin pressing contact area located in front of the blade for pressing down the elastic skin
  • the rear side of the skin pressing contact area is in contact with the adjacent skin along the front and rear direction of the cutter head frame.
  • the distance between the blades in the pressure contact area is a
  • the distance between the front side of the skin pressure contact area and the blade adjacent to the skin pressure contact area along the front and back direction of the blade frame is b, where 0.30mm ⁇ a ⁇ 1.75mm, 2.0mm ⁇ b ⁇ 12.1mm
  • this design makes the size between the front and rear sides of the skin pressing contact area meet 1.70mm ⁇ b-a ⁇ 10.35mm, thus ensuring that the shaving head of this application is allowed by the industry standard (i.e.
  • the maximum range increases the pressing area of the skin pressing contact area on the elastic skin during shaving. Therefore, for the same unit of elastic skin, under the premise of the same pressing distance, the skin pressing contact area is The pressing area of the elastic skin is in the maximum range, so that the elastic skin is stretched tighter. For example, taking elastic rubber strips as an example, for elastic rubber strips of the same length and constrained and fixed at both ends, the pressing distance is the same Under the premise, the degree of tension of the elastic rubber strip when pressed down by one finger is much smaller than the degree of tension when pressed down by two fingers, thereby reducing the elastic skin located in the skin pressure contact area and the blade adjacent to the skin pressure contact area. The degree of arching of the position between them can achieve the purpose of reducing shaving irritation.
  • FIG. 1 is a state diagram showing the relationship between a conventional shaver and elastic skin during shaving.
  • Figure 2 is an internal view of the shaver according to the first embodiment of the present application.
  • Figure 3 is an internal view of the shaver shown in Figure 2 showing straight lines.
  • FIG. 4 is a plan view of the head frame in the shaver shown in FIG. 2 .
  • Figure 5 is a plan view of the cutter head frame shown in Figure 4 with the skin pressing contact area indicated by dotted lines.
  • FIG. 6 is a plan view of another variation of the skin pressing contact area in the blade frame shown in FIG. 5 .
  • Figure 7 is an internal view of the shaver according to the second embodiment of the present application.
  • Figure 8 is an internal view of the shaver according to the third embodiment of the present application.
  • Figure 9 shows a state diagram of the relationship between the shaver of the present application and the elastic skin.
  • the shaving head 100 of the first embodiment of the present application includes a blade 10 and a head frame 20 with a receiving space 21.
  • the holding space 21 It is a square space with rounded corners to facilitate the processing and manufacturing of the accommodation space 21.
  • the accommodation space 21 can also be designed as a square space without rounded corners, or as a space of other shapes, so it is not shown in the figure. 4 to the limit shown in Figure 6.
  • the blade 10 is located in the accommodating space 21 and extends along the left and right directions of the cutter head frame 20 so that the hair shaved by the blade 10 can be discharged from the accommodating space 21 and facilitate the cleaning and maintenance of the blade 10; the blade 10 is assembled on the knife
  • the cutter head frame 20 provides support and an assembly place for the blade 10, and the blade 11 of the blade 10 faces the front of the cutter head frame 20; specifically, the blade 10 is assembled on the intermediate connection described below.
  • the middle connecting side wall 24 is connected to both the front side wall 22 and the rear side wall 23 described below, and the middle connecting side wall 24 has an opening for the blade 10 to be installed downward from above the cutter head frame 20.
  • the assembly channel 241 that enters the middle connecting side wall 24 is designed to facilitate the assembly and disassembly operation of the blade 10 at the cutter head frame 20; preferably, the middle connecting side wall 24 is relatively arranged one left and one right, corresponding to Therefore, the left and right ends of the blade 10 are respectively assembled in the assembly channel 241 of the middle connecting side wall 24 at the same end, but it is not limited to this.
  • the cutter head frame 20 has a skin pressing contact area D located in front of the blade 10 for pressing down the elastic skin 200 (see FIG. 9 ).
  • the rear side of the skin pressing contact area D is along the front and rear direction of the cutter head frame 20
  • the distance between the front side of the skin pressure contact area D and the blade 10 adjacent to the skin pressure contact area D is b.
  • the shaving head 100 of the embodiment maximizes the pressing area of the skin pressing contact area D on the elastic skin 200 during the shaving process within the size range allowed by the industry standard (ie, national standard).
  • the dotted box marked by D is the skin pressing contact area
  • the four dotted boxes marked D are the skin pressing contact areas, that is to say, The skin-pressing contact area D in FIG. 5 extends continuously along the left-right direction of the blade frame 20
  • the skin-pressing contact area D extends intermittently along the left-right direction of the blade frame 20 . More specifically, as follows:
  • mm means millimeters.
  • the cutter head frame 20 has a front side wall 22 located in front of the blade 10.
  • the skin pressing contact area D is formed by the upper surface 221 of the front side wall 22, which makes the manufacturing of the skin pressing contact area D easier. Almost and preferably, in FIG. 5 , the skin pressing contact area D is formed on the entire upper surface 221 of the front side wall 22 , while in FIG. 6 , the skin pressing contact area D is not formed on the entire upper surface 221 of the front side wall 22 .
  • the entire upper surface 221 is formed because the skin pressing contact area D extends at intervals along the left and right directions of the blade frame 20, but is not limited thereto; at the same time, the blade frame 20 also has a rear side located behind the blade 10.
  • the skin pressing contact area D is a planar area, so that the skin pressing contact area D presses down the elastic skin 200 in a planar contact manner.
  • the skin pressing contact area D is pressed down. It can also be an arc-shaped surface area, so that the skin pressure contact area D can be smoothly along the elastic skin 200; at the same time, all the blades 10 are arranged in a gradually increasing height along the direction of the blade frame 20 from front to back, adjacent to the skin pressure.
  • the blade 10 in the contact area D is lower than the straight line L connecting the highest point P2 of the upper surface 231 of the rear side wall 23 and the highest point P1 of the skin pressing contact area D, that is, the blade 10 adjacent to the skin pressing contact area D is in a negative position.
  • the amount of exposure, the blade 10 adjacent to the rear side wall 23 is higher than the straight line L connecting the highest point P2 of the upper surface 231 of the rear side wall 23 and the highest point P1 of the skin pressing contact area D, that is, adjacent to the rear side wall 23
  • the blades 10 are at a positive exposure, and are designed such that the exposures of all the blades 10 are arranged from negative to positive, thereby achieving a deep shaving effect in one shaving process.
  • the shaving head 100' in the second embodiment of the present application also includes a protective member 30.
  • the head frame 20 has a front side wall 22 located in front of the blade 10.
  • the protective member 30 is assembled on the front side from above.
  • the wall 22 extends along the left and right directions of the blade frame 20. Since the protective member 30 completely covers the upper part of the front side wall 22, at this time, the skin pressing contact area D is formed by the upper surface 31 of the protective member 30; and in this case, In the shaving head 100 of the first embodiment, it does not include the protective member 30 .
  • the skin pressing contact area D is formed by the upper surface 221 of the front side wall 22 .
  • the structure of the shaving head 100'' of the third embodiment of the present application is basically the same as that of the shaving head 100 of the first embodiment of the present application. The differences are as follows:
  • the shaving head 100′′ of the third embodiment of the present application also includes a protective member 30.
  • the head frame 20 has a front side wall 22 located in front of the blade 10.
  • the protective member 30 is assembled on the front side from above.
  • the side wall 22 extends along the left and right direction of the cutter head frame 20. Since the protective member 30 partially covers the upper part of the front side wall 22, the position 23a of the front side wall 22 between the protective member 30 and the blade 10 is exposed. Therefore, part of the skin pressing contact area D is formed by the upper surface 31 of the protective member 30 , and the remaining part of the skin pressing contact area D is formed by the upper surface of the position 23 a of the front side wall 22 between the protecting member 30 and the blade 10 231 formed. In the shaving head 100 of the first embodiment of the present application, it does not include the protective member 30 . Correspondingly, the skin pressing contact area D is formed by the upper surface 221 of the front side wall 22 .
  • the upper surface 231 of the position 23a of the front side wall 22 between the protective member 30 and the blade 10 is spliced with the upper surface 31 of the protective member 30 Together, it is preferable that the upper surface 231 of the position 23a of the front side wall 22 between the protective member 30 and the blade 10 is flush with the upper surface 31 of the protective member 30.
  • the upper surface 231 of the position 23a of the front side wall 22 between the protective member 30 and the blade 10 is lower than the upper surface 31 of the protective member 30, so it is not limited to that shown in FIG. 8 .
  • the cutter head frame 20 has a skin pressing contact area D located in front of the blade 10 for pressing down the elastic skin 200
  • the rear side of the skin pressing contact area D is along the front and rear of the cutter head frame 20.
  • the distance between the direction and the blade 10 adjacent to the skin pressing contact area D is a.
  • the distance between the front side of the skin pressing contact area D and the blade 10 adjacent to the skin pressing contact area D along the front and back direction of the blade frame 20 is a.
  • the shaving head 100 (100 ⁇ , 100 ⁇ ) increases the pressing area of the skin pressing contact area D on the elastic skin 200 during the shaving process within the size range allowed by the industry standard (i.e., the national standard). Therefore, For the elastic skin 200 of the same unit, under the premise of the same pressing distance, the pressing area of the skin pressing contact area D on the elastic skin is in the maximum range, so that the elastic skin is stretched tighter, for example, with elasticity Take a rubber strip as an example.
  • the direction pointed by arrow A is the direction from front to back of the cutter head frame 20
  • the direction pointed by arrow B is the direction from left to right of the cutter head frame 20
  • the direction pointed by arrow C The direction of is the direction from top to bottom of the cutter head frame 20.

Abstract

一种剃须刀头（100），包括刀片（10）及带容纳空间（21）的刀头框架（20）。刀片位于容纳空间中并沿刀头框架的左右方向延伸，刀片装于刀头框架处，刀片的刀刃（11）朝向刀头框架的前方；刀头框架具有位于刀片对应前方的用于下压弹性皮肤（200）的皮肤下压接触区（D），皮肤下压接触区的后侧沿刀头框架的前后方向与邻近该皮肤下压接触区之刀片的间距为a，皮肤下压接触区的前侧沿刀头框架的前后方向与邻近该皮肤下压接触区之刀片的间距为b，其中，0.30mm ≤a≤1.75mm，2.0mm≤b≤12.1mm。该剃须刀头通过增加皮肤下压接触区对弹性皮肤的下压面积，使得皮肤被皮肤下压接触区张得更紧而减少拱起程度。

Description

剃须刀头 技术领域
本申请涉及剃须领域，尤其涉及一种在剃须过程中增加对弹性皮肤的下压面积而使得弹性皮肤张得更紧的剃须刀头。
背景技术
众所周知，剃须刀是人们常用的生活用品。而于对剃须刀来说，它可以分为电动剃须刀和手动剃须刀两大类。
其中，对于手动剃须刀来说，它主要由刀头和与刀头连接的手柄组成。而对于刀头来说，它主要由刀头框架和装配于刀头框架的刀片构成，刀片沿刀头框架的左右方向延伸，且刀片的刀刃朝向刀头框架的前侧壁，前侧壁具有在剃须过程中对弹性皮肤下压的皮肤下压接触部。
但是，在现有的刀头中，如图1所示，由于皮肤下压接触部之前侧与邻近前侧壁22`的刀片10之间的间距b`及皮肤下压接触部之后侧与邻近前侧壁22`的刀片10之间的间距a`设计不合理，导致皮肤下压接触部在刀头剃须的过程中对弹性皮肤200的下压面积小，从而导致弹性皮肤200位于刀片10`与前侧壁22`之间的位置210没得到有效的张紧，进而造成弹性皮肤200位于刀片10`与前侧壁22`之间的位置210凸起于刀片10的前方，因而导致与前侧壁22`相邻的刀片10`对弹性皮肤200之凸起处(即位置210)抵顶切割，影响剃刮的舒适性。
因此，急需要一种在剃须过程中增加对弹性皮肤的下压面积而使得弹性皮肤张得更紧的剃须刀头来克服上述的缺陷。
申请内容
本申请的目的在于提供一种在剃须过程中增加对弹性皮肤的下压面积而使 得弹性皮肤张得更紧的剃须刀头。
为实现上述的目的，本申请的剃须刀头包括刀片及带容纳空间的刀头框架。所述刀片位于所述容纳空间中并沿所述刀头框架的左右方向延伸，所述刀片装配于所述刀头框架处，所述刀片的刀刃朝向所述刀头框架的前方；所述刀头框架具有位于所述刀片对应前方的用于下压弹性皮肤的皮肤下压接触区，所述皮肤下压接触区的后侧沿所述刀头框架的前后方向与邻近该皮肤下压接触区之刀片的间距为a，所述皮肤下压接触区的前侧沿所述刀头框架的前后方向与邻近该皮肤下压接触区之刀片的间距为b，其中，0.30mm≤a≤1.75mm，2.0mm≤b≤12.1mm。
较佳地，0.39mm≤a≤1.49mm，2.61mm≤b≤10.51mm。
较佳地，所述皮肤下压接触区还沿所述刀头框架的左右方向呈连续式或间断式延伸。
较佳地，所述刀头框架具有位于所述刀片对应前方的前侧壁，所述皮肤下压接触区由所述前侧壁的上表面形成。
较佳地，本申请的剃须刀头还包括防护构件，所述刀头框架具有位于所述刀片对应前方的前侧壁，所述防护构件从上方装配于所述前侧壁并沿所述刀头框架的左右方向延伸，所述皮肤下压接触区由所述防护构件的上表面形成，或者，所述皮肤下压接触区中的一部分由所述防护构件的上表面形成，所述皮肤下压接触区中的余下部分由所述前侧壁的位于所述防护构件与刀片之间的位置之上表面形成。
较佳地，所述前侧壁的位于所述防护构件与刀片之间的位置之上表面与所述防护构件的上表面拼接在一起。
较佳地，所述前侧壁的位于所述防护构件与刀片之间的位置之上表面低于所述防护构件的上表面。
较佳地，所述皮肤下压接触区为弧形曲面区或平面区。
较佳地，所述刀头框架还具有位于所述刀片对应后方的后侧壁，所述刀片为多个且沿所述刀头框架的前后方向隔开排列。
较佳地，所有所述刀片沿所述刀头框架由前至后的方向呈高度逐渐递增的布置，邻近所述皮肤下压接触区的刀片低于所述后侧壁之上表面的最高点与所述皮肤下压接触区之最高点的直线连线，邻近所述后侧壁的刀片高于所述后侧壁之上表面的最高点与所述皮肤下压接触区之最高点的直线连线。
与现有技术相比，由于刀头框架具有位于刀片对应前方的用于下压弹性皮肤的皮肤下压接触区，皮肤下压接触区的后侧沿刀头框架的前后方向与邻近该皮肤下压接触区之刀片的间距为a，皮肤下压接触区的前侧沿刀头框架的前后方向与邻近该皮肤下压接触区之刀片的间距为b，其中，0.30mm≤a≤1.75mm，2.0mm≤b≤12.1mm，这样设计使得皮肤下压接触区的前后两侧之间的尺寸满足1.70mm≤b-a≤10.35mm，从而确保本申请的剃须刀头在行业标准(即国标)允许的尺寸范围内最大范围增加皮肤下压接触区在剃须过程中对弹性皮肤的下压面积，故对同一单位的弹性皮肤来说，在下压距离相同的前提下，使得皮肤下压接触区对弹性皮肤的下压面积处于最大范围，从而使得弹性皮肤被张得更紧，例如，以弹性橡胶条为例，对于同一长度且两端受约束固定的弹性橡胶条来说，在下压距离相同的前提下，弹性橡胶条被一个手指下压张紧的程度远小于被两个手指下压张紧的程度，进而减少弹性皮肤位于皮肤下压接触区和与该皮肤下压接触区相邻的刀片之间的位置的拱起程度，因而达到减少剃须刺激的目的。
附图说明
图1是显示出现有的剃须刀在剃须时与弹性皮肤关系的状态图。
图2是本申请第一实施例的剃须刀的内部图。
图3在图2所示的剃须刀在显示出直线连线后的内部图。
图4是图2所示的剃须刀中的刀头框架的平面图。
图5是图4所示的刀头框架在用虚线表示出皮肤下压接触区的平面图。
图6是图5所示的刀头框架中的皮肤下压接触区的另一变形的平面图。
图7是本申请第二实施例的剃须刀的内部图。
图8是本申请第三实施例的剃须刀的内部图。
图9显示出本申请的剃须刀与弹性皮肤关系的状态图。
具体实施方式
为了详细说明本申请的技术内容、构造特征，以下结合实施方式并配合附图作进一步说明。
请参阅图2和图3，本申请第一实施例的剃须刀头100包括刀片10及带容纳空间21的刀头框架20，较优的是，在图4至图6中，容纳空间21为带圆角的方形空间，以便于容纳空间21的加工制造，当然，根据实际需要，容纳空间21也可以设计为不带圆角的方形空间，或者，为其它形状的空间，故不以图4至图6所示为限。刀片10位于容纳空间21中并沿刀头框架20的左右方向延伸，以便于被刀片10剃刮的毛发从容纳空间21处排走，以及便于对刀片10的清洗及维护；刀片10装配于刀头框架20处，由刀头框架20对刀片10提供支撑的作用和装配的场所，且刀片10的刀刃11朝向刀头框架20的前方；具体地，刀片10是装配于下面描述到的中间连接侧壁24处，中间连接侧壁24连接于下面描述到的前侧壁22和后侧壁23两者上，且中间连接侧壁24开设有供刀片10从刀头框架20的上方向下装入中间连接侧壁24内的装配通道241，这样设计以便于刀片10于刀头框架20处的装拆操作；较优的是，中间连接侧壁24是呈一左一右的相对布置，对应地，刀片10的左右两端分别装配于同一端的中间连接侧壁24之装配通道241中，但不以此为限。同时，刀头框架20具有位于刀片10对应前方的用于下压弹性皮肤200(见图9)的皮肤下压接触区D，皮肤下压接触区D的后侧沿刀头框架20的前后方向与邻近该皮肤下压接触区D之刀片10的间距为a，皮肤下压接触区D的前侧沿刀头框架20的前后方向与邻近该皮肤下压接触区D之刀片10的间距为b，其中，0.30mm≤a≤1.75mm，2.0mm≤b≤12.1mm，这样使得皮肤下压接触区D的前后两侧之间的尺寸满足1.70mm≤b-a≤10.35mm，从而确保本申请第一实施例的剃须刀头100在行业标准(即国标)允许的尺寸范围内最大限度地增加皮肤下压接触区D在剃须过程中对弹性皮肤200的下压面积。需要说明的是，在图5中，标号D所指的虚线框就是皮 肤下压接触区，而于图6中，标号D所指的四个虚线框就是皮肤下压接触区，即是说，图5中的皮肤下压接触区D沿刀头框架20的左右方向连续式延伸，而在图6中，皮肤下压接触区D沿刀头框架20的左右方向间断式延伸。更具体地，如下：
如图3所示，0.39mm≤a≤1.49mm，2.61mm≤b≤10.51mm，这样设计使得皮肤下压接触区D的前后两侧之间的尺寸满足2.22mm≤b-a≤9.02mm，更有效地对皮肤下压接触区D之后侧至邻近该皮肤下压接触区的刀片10之间的间距a与皮肤下压接触区D的前后两侧之间的尺寸进行平衡，在确保皮肤下压接触区D之后侧至邻近该皮肤下压接触区D的刀片10之间的间距a处于较优尺寸时能最大限度地增加皮肤下压接触区D的前后两侧之间的尺寸，从而确保皮肤下压接触区D的下压面积最优。举例而言，5.0mm≤b-a≤6.0mm，故当a为0.39mm时，此时5.39mm≤b≤6.39mm；当a为0.5mm时，此时5.5mm≤b-a≤6.5mm；当a为1.0mm时，此时6.0mm≤b-a≤7.0mm；当a为1.49mm时，此时6.49mm≤b-a≤7.49mm。需要说明的是，mm表示毫米。
如图2所示，刀头框架20具有位于刀片10对应前方的前侧壁22，皮肤下压接触区D由前侧壁22的上表面221形成，这样使得皮肤下压接触区D的制造更容易，较优的是，在图5中，皮肤下压接触区D形成于前侧壁22的整个上表面221，而在图6中，皮肤下压接触区D并不是由前侧壁22的整个上表面221形成，这是由于皮肤下压接触区D沿刀头框架20的左右方向间隔式延伸，但不以此为限；同时，刀头框架20还具有位于刀片10对应后方的后侧壁23，此时，刀片10为三个且沿刀头框架20的前后方向隔开排列，当然，根据实际需要，刀片10还可为一个或二个不等，故不以附图所示为限。具体地，在图2中，皮肤下压接触区D为平面区，以使得皮肤下压接触区D以平面接触方式对弹性皮肤200进行下压，当然，根据实际需要，皮肤下压接触区D还可为弧形曲面区，以便于皮肤下压接触区D沿弹性皮肤200顺滑；同时，所有刀片10沿刀头框架20由前至后的方向呈高度逐渐递增的布置，邻近皮肤下压接触区D的刀片10低于后侧壁23之上表面231的最高点P2与皮肤下压接触区D之最高点P1的直 线连线L，即邻近皮肤下压接触区D的刀片10处于负的暴露量，邻近后侧壁23的刀片10高于后侧壁23之上表面231的最高点P2与皮肤下压接触区D之最高点P1的直线连线L，即，邻近后侧壁23的刀片10处于正的暴露量，这样设计使得所有的刀片10的暴露量按照由负到正的排列，从而在一次剃须过程中实现先深后浅的剃刮作用。
请参阅图7，本申请第二实施例的剃须刀头100`与本申请第一实施例的剃须刀头100两者的结构基本相同，区别点如下：
(1)于本申请第二实施例的剃须刀头100`中，还包括防护构件30，刀头框架20具有位于刀片10对应前方的前侧壁22，防护构件30从上方装配于前侧壁22并沿刀头框架20的左右方向延伸，由于防护构件30是全部覆盖前侧壁22的上部，此时，皮肤下压接触区D是由防护构件30的上表面31形成；而于本申请第一实施例的剃须刀头100中，它不包含防护构件30，对应地，皮肤下压接触区D是由前侧壁22的上表面221形成。
除了上述的区别外，其它与本申请第一实施例的剃须刀头100相同，故在此不再赘述。
请参阅图8，本申请第三实施例的剃须刀头100``与本申请第一实施例的剃须刀头100两者的结构基本相同，区别点如下：
(一)于本申请第三实施例的剃须刀头100``中，还包括防护构件30，刀头框架20具有位于刀片10对应前方的前侧壁22，防护构件30从上方装配于前侧壁22并沿刀头框架20的左右方向延伸，由于防护构件30是部分地覆盖前侧壁22的上部，使得前侧壁22位于防护构件30和刀片10之间的位置23a呈外露布置，故皮肤下压接触区D中的一部分由防护构件30的上表面31，皮肤下压接触区D中的余下部分由前侧壁22的位于防护构件30与刀片10之间的位置23a之上表面231形成。而于本申请第一实施例的剃须刀头100中，它不包含防护构件30，对应地，皮肤下压接触区D由前侧壁22的上表面221形成。
(二)于本申请第三实施例的剃须刀头100``中，前侧壁22的位于防护构件30与刀片10之间的位置23a之上表面231与防护构件30的上表面31拼接在一 起，较优的是，前侧壁22的位于防护构件30与刀片10之间的位置23a之上表面231与防护构件30的上表面31相平齐，当然，根据实际需要，也可以使得前侧壁22的位于防护构件30与刀片10之间的位置23a之上表面231低于防护构件30的上表面31，故不以图8所示为限。
除上述的(一)和(二)区别外，其它与本申请第一实施例的剃须刀头100相同，故在此不再赘述。
与现有技术相比，由于刀头框架20具有位于刀片10对应前方的用于下压弹性皮肤200的皮肤下压接触区D，皮肤下压接触区D的后侧沿刀头框架20的前后方向与邻近该皮肤下压接触区D之刀片10的间距为a，皮肤下压接触区D的前侧沿刀头框架20的前后方向与邻近该皮肤下压接触区D之刀片10的间距为b，其中，0.30mm≤a≤1.75mm，2.0mm≤b≤12.1mm，这样设计使得皮肤下压接触区D的前后两侧之间的尺寸满足1.70mm≤b-a≤10.35mm，从而确保本申请的剃须刀头100(100`、100``)在行业标准(即国标)允许的尺寸范围内最大范围增加皮肤下压接触区D在剃须过程中对弹性皮肤200的下压面积，故对同一单位的弹性皮肤200来说，在下压距离相同的前提下，使得皮肤下压接触区D对弹性皮肤的下压面积处于最大范围，从而使得弹性皮肤被张得更紧，例如，以弹性橡胶条为例，对于同一长度且两端受约束固定的弹性橡胶条来说，在下压距离相同的前提下，弹性橡胶条被一个手指下压张紧的程度远小于被两个手指下压张紧的程度，进而减少弹性皮肤200位于皮肤下压接触区D和与该皮肤下压接触区D相邻的刀片10之间的位置210的拱起程度，状态见图9所示，因而达到减少剃须刺激的目的。
需要说明的是，在附图中，箭头A所指的方向为刀头框架20由前至后的方向，箭头B所指的方向为刀头框架20由左至右的方向，箭头C所指的方向为刀头框架20由上至下的方向。
以上所揭露的仅为本申请的较佳实例而已，当然不能以此来限定本申请之权利范围，因此依本申请权利要求所作的等同变化，仍属于本申请所涵盖的范围。

Claims (10)

  1. 一种剃须刀头，包括刀片及带容纳空间的刀头框架，所述刀片位于所述容纳空间中并沿所述刀头框架的左右方向延伸，所述刀片装配于所述刀头框架处，所述刀片的刀刃朝向所述刀头框架的前方，所述刀头框架具有位于所述刀片对应前方的用于下压弹性皮肤的皮肤下压接触区，其特征在于，所述皮肤下压接触区的后侧沿所述刀头框架的前后方向与邻近该皮肤下压接触区之刀片的间距为a，所述皮肤下压接触区的前侧沿所述刀头框架的前后方向与邻近该皮肤下压接触区之刀片的间距为b，其中，0.30mm≤a≤1.75mm，2.0mm≤b≤12.1mm。
  2. 根据权利要求1所述的剃须刀头，其特征在于，0.39mm≤a≤1.49mm，2.61mm≤b≤10.51mm。
  3. 根据权利要求1所述的剃须刀头，其特征在于，所述皮肤下压接触区还沿所述刀头框架的左右方向呈连续式或间断式延伸。
  4. 根据权利要求1所述的剃须刀头，其特征在于，所述刀头框架具有位于所述刀片对应前方的前侧壁，所述皮肤下压接触区由所述前侧壁的上表面形成。
  5. 根据权利要求1所述的剃须刀头，其特征在于，还包括防护构件，所述刀头框架具有位于所述刀片对应前方的前侧壁，所述防护构件从上方装配于所述前侧壁并沿所述刀头框架的左右方向延伸，所述皮肤下压接触区由所述防护构件的上表面形成，或者，所述皮肤下压接触区中的一部分由所述防护构件的上表面形成，所述皮肤下压接触区中的余下部分由所述前侧壁的位于所述防护构件与刀片之间的位置之上表面形成。
  6. 根据权利要求5所述的剃须刀头，其特征在于，所述前侧壁的位于所述防护构件与刀片之间的位置之上表面与所述防护构件的上表面拼接在一起。
  7. 根据权利要求5所述的剃须刀头，其特征在于，所述前侧壁的位于所述 防护构件与刀片之间的位置之上表面低于所述防护构件的上表面。
  8. 根据权利要求4或5所述的剃须刀头，其特征在于，所述皮肤下压接触区为弧形曲面区或平面区。
  9. 根据权利要求4或5所述的剃须刀头，其特征在于，所述刀头框架还具有位于所述刀片对应后方的后侧壁，所述刀片为多个且沿所述刀头框架的前后方向隔开排列。
  10. 根据权利要求9所述的剃须刀头，其特征在于，所有所述刀片沿所述刀头框架由前至后的方向呈高度逐渐递增的布置，邻近所述皮肤下压接触区的刀片低于所述后侧壁之上表面的最高点与所述皮肤下压接触区之最高点的直线连线，邻近所述后侧壁的刀片高于所述后侧壁之上表面的最高点与所述皮肤下压接触区之最高点的直线连线。
PCT/CN2022/108059 2022-07-27 2022-07-27 剃须刀头 WO2024020817A1 (zh)

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CN1202127A (zh) * 1995-11-10 1998-12-16 吉莱特公司 椭圆形框架的剃刀
CN1213334A (zh) * 1996-03-11 1999-04-07 吉莱特公司 安全剃刀
US20100288294A1 (en) * 2009-05-13 2010-11-18 Paul Fathallah Shaving cartridges having a plurality of arrays
CN104010776A (zh) * 2011-12-22 2014-08-27 皇家飞利浦有限公司 理发设备
CN104507647A (zh) * 2012-07-24 2015-04-08 吉列公司 剃刀刀片架
CN205630718U (zh) * 2016-04-05 2016-10-12 任向荣 刀头框架、剃须刀头及剃须刀
CN111757799A (zh) * 2018-03-30 2020-10-09 吉列有限责任公司 包括皮肤互连构件的剃刮剃刀系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1202127A (zh) * 1995-11-10 1998-12-16 吉莱特公司 椭圆形框架的剃刀
CN1213334A (zh) * 1996-03-11 1999-04-07 吉莱特公司 安全剃刀
US20100288294A1 (en) * 2009-05-13 2010-11-18 Paul Fathallah Shaving cartridges having a plurality of arrays
CN104010776A (zh) * 2011-12-22 2014-08-27 皇家飞利浦有限公司 理发设备
CN104507647A (zh) * 2012-07-24 2015-04-08 吉列公司 剃刀刀片架
CN205630718U (zh) * 2016-04-05 2016-10-12 任向荣 刀头框架、剃须刀头及剃须刀
CN111757799A (zh) * 2018-03-30 2020-10-09 吉列有限责任公司 包括皮肤互连构件的剃刮剃刀系统

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