WO2021196170A1 - 剃须刀头 - Google Patents

剃须刀头 Download PDF

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Publication number
WO2021196170A1
WO2021196170A1 PCT/CN2020/083250 CN2020083250W WO2021196170A1 WO 2021196170 A1 WO2021196170 A1 WO 2021196170A1 CN 2020083250 W CN2020083250 W CN 2020083250W WO 2021196170 A1 WO2021196170 A1 WO 2021196170A1
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WO
WIPO (PCT)
Prior art keywords
side wall
skin contact
skin
front side
highest point
Prior art date
Application number
PCT/CN2020/083250
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/CN2020/083250 priority Critical patent/WO2021196170A1/zh
Priority to CN202080061262.2A priority patent/CN114340857B/zh
Priority to EP20928239.1A priority patent/EP4067023A4/en
Publication of WO2021196170A1 publication Critical patent/WO2021196170A1/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
    • 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
    • B26B21/4012—Housing details, e.g. for cartridges
    • B26B21/4031—Housing details, e.g. for cartridges characterised by special geometric shaving parameters, e.g. blade span or exposure
    • 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
    • B26B21/4012—Housing details, e.g. for cartridges
    • B26B21/4018—Guard elements

Definitions

  • the application relates to the field of shaving, and in particular to a shaving head.
  • the cutter head 300 includes a cutter head frame 310 and a blade 320.
  • the cutter head frame 310 includes a front side wall 310a, a rear side wall 310b, and is connected to the front side wall 310a and
  • the connecting side wall 310c between the rear side walls 310b, and the front side wall 310a, the rear side wall 310b, and the connecting side wall 310c jointly define an accommodation space 310d, the blade 320 is located in the accommodation space 310d, and the blade 321 of the blade 320 faces forward
  • the side wall 310a, and the top surface of the front side wall 310a has a skin contact portion 311 that comes into contact with the skin during shaving.
  • the cutter head 300 can slide more smoothly along the skin; however, since the height of the skin contact portion 311 is arranged in a descending direction from the rear to the front of the cutter head frame 310, the highest point N of the skin contact portion 311 Offset backward and close to the knife edge 321, narrow the distance D ⁇ between the highest point N and the knife edge 321.
  • the skin 200 pressed by the highest point M of the skin contact part 311 and the knife edge 321 is arched Large; because the skin 200 has a large arching range, the smaller the angle ⁇ between the incision 321 and the arched skin 200 is, the greater the skin irritation, and accordingly, the worse the shave comfort experience.
  • the purpose of the present application is to provide a shaving head that reduces skin irritation and improves the experience of shaving comfort.
  • a razor head which includes a head frame and a blade.
  • the tool bit frame includes a front side wall, a rear side wall, and a connecting side wall connected to the front side wall and the rear side wall, and the connecting side wall, the front side wall and the rear side wall jointly define an accommodating space,
  • the blade is located in the accommodating space, and the blade edge of the blade faces the front side wall;
  • the rear side portion of the front side wall adjacent to the blade edge has a first skin junction that can contact with the skin
  • the front side part of the side wall away from the incision has a second skin contact part that can be in contact with the skin, the highest point of the second skin contact part is higher than the highest point of the first skin contact part, and the first skin
  • the highest point of the contact portion is higher than the knife edge, and the highest point of the first skin contact portion is also located below the plane defined by the highest point of the second skin contact portion and the knife edge.
  • a razor head which includes a head frame, a blade, and a guard.
  • the tool bit frame includes a front side wall, a rear side wall, and a connecting side wall connected to the front side wall and the rear side wall, and the connecting side wall, the front side wall and the rear side wall jointly define an accommodating space,
  • the blade is located in the accommodating space, and the blade edge of the blade faces the front side wall;
  • the guard covers the front side of the front side wall away from the blade edge, and the front side wall is adjacent to the blade edge
  • the rear side of the shield is the exposed first skin contact part that can be in contact with the skin, and the highest point of the guard defines a second skin contact part that can be in contact with the skin, and the highest point of the second skin contact part is high At the highest point of the first skin contact part, the highest point of the first skin contact part is higher than the incision, and the highest point of the first skin contact part is also located between the second skin contact part Below the plane defined by the highest point and the knife edge.
  • the second skin contact portion has a convex arc structure in the middle along the front and rear direction of the cutter head skeleton.
  • the outer contour of the cross section of the second skin contact portion is an arc
  • the height of the arc ranges from the end point adjacent to the first skin contact portion to the end point away from the first skin contact portion
  • the extended line of the arc adjacent to the first skin contact portion intersects the first skin contact portion.
  • the shaving head of the present application further includes a lubricating strip mounted on the rear side wall, and the lubricating strip has a third skin contact portion whose highest point is lower than the blade edge.
  • At least two of the blades are arranged side by side at intervals along the front and rear direction of the cutter head skeleton, and the highest point of the second skin contact part and the cutting edge of the blade adjacent to the first skin contact part Define the plane together.
  • the cross-section of the first skin contact portion is a straight section.
  • the intersection of the portion of the front side wall used to define the containing space and the first skin contact portion has a rounded corner structure.
  • the cross-sectional profile of the rounded corner structure is tangent to the straight line segment.
  • the guard covers the front side of the front side wall away from the incision, the rear side of the front side wall adjacent to the incision is the exposed first skin contact part that can contact with the skin, around the highest point of the guard
  • a second skin contact part that can be in contact with the skin is defined, the highest point of the second skin contact part is higher than the highest point of the first skin contact part, the highest point of the first skin contact part is higher than the incision, and the first skin contact part
  • the highest point is also located below the plane defined by the highest point of the second skin contact part and the incision; therefore, when shaving, the highest point of the incision and the second skin contact is pressed against the skin to extend the incision and the second skin
  • the skin distance between the highest points of the contact part correspondingly reduces the skin arching between the incision edge and the highest point of the second skin contact part, and with the help of the highest point of the first skin contact part being located at the second skin contact part Below the plane defined by the highest point of the incision and the incision, the skin between the
  • FIG. 1 is a schematic diagram of the internal structure of a shaving head according to an embodiment of the present application after being cut through a cross-sectional plane.
  • Fig. 2 is a schematic diagram of the state in which the shaving head shown in Fig. 1 is in contact with the skin during shaving.
  • Fig. 3 is a schematic diagram of the state of the shaving head shown in Fig. 2 showing the pressing force and the distance.
  • Fig. 4 is a schematic diagram of the internal structure of a shaving head according to another embodiment of the present application after being cut through a cross-sectional plane.
  • Fig. 5 is a schematic diagram of a state in which a conventional shaving head is in contact with the skin during shaving.
  • a shaving head 100 includes a head frame 10, a blade 20 and a guard 30.
  • the tool bit frame 10 includes a front side wall 10a, a rear side wall 10b, and a connecting side wall 10c connected to the front side wall 10a and the rear side wall 10b.
  • the connecting side wall 10c, the front side wall 10a and the rear side wall 10b jointly define a
  • the blade 20 is located in the accommodating space 10d, which provides necessary space for the installation and work of the blade 20; the knife edge 21 of the blade 20 faces the front side wall 10a.
  • the guard 30 covers the front side portion of the front side wall 10a away from the knife edge 21.
  • the left side of the cross-sectional profile of the front side portion is composed of a horizontal line segment and a vertical line segment, and the middle is an arc segment.
  • the protective member 30 covers the front side part.
  • the protective member 30 can be integrally formed with the front side wall 10a by injection molding, or it can be combined with the front side by glue.
  • the side walls 10a are fixed together, or fixed together with the front side wall 10a by ultrasonic means, so that the guard 30 covers the front side portion of the front side wall 10a, but not limited to this; the front side wall 10a is adjacent to the knife edge
  • the rear side of 21 is the exposed first skin contact portion 11 that can be in contact with the skin.
  • the highest point A of the guard 30 defines a second skin contact portion 30a that can be in contact with the skin.
  • the shaving head 100 of the present application further includes a lubricating strip 40 installed on the rear side wall 10b.
  • the cross-section of the lubricating strip 40 is in a "T" shape, and the lubricating strip 40 has a highest point F lower than
  • the third skin contact portion 41 of the knife edge 21 is used to increase the comfort of shaving.
  • the state is shown in FIG. 1. It should be noted that in FIG. 1, H1 represents the height of the knife edge 21, and H2 represents the height of the highest point F of the third skin contact portion 41. More specifically, as follows:
  • the second skin contact portion 30a is a convex arc structure along the front and rear direction of the cutter head frame 10; specifically, the cross-sectional contour of the second skin contact portion 30a is an arc 31.
  • the height of the line 31 gradually increases and then gradually decreases from the end point B adjacent to the first skin contact portion 11 to the end point C far away from the first skin contact portion 11, so that the design makes the skin more smoothly along during shaving.
  • the second skin contact portion 30a slides toward the knife edge 21, and the resistance is smaller; more specifically, the arc 31 is adjacent to the extension line 32 of the first skin contact portion 11 (shown with a broken line in the upper right enlarged view of FIG.
  • At least two blades 20 are arranged side-by-side and spaced apart along the front and rear direction of the cutter head frame 10.
  • the highest point A of the second skin contact portion 30a and the blade adjacent to the first skin contact portion 11 The blade edges 21 of the 20 jointly define a plane P, so as to improve the shaving efficiency with the help of a plurality of blades 20.
  • the cross section of the first skin contact portion 11 is a straight section 11a, and the intersection of the portion 12 of the front side wall 10a used to define the accommodation space 10d and the first skin contact portion 11 is a rounded corner structure 13.
  • the cross-sectional profile of the rounded corner structure 13 is tangent to the straight section 11a to ensure that the skin 200 slides toward the incision 21 more smoothly.
  • the guard 30 covers the front side portion of the front side wall 10a away from the knife edge 21, the rear side portion of the front side wall 10a adjacent to the knife edge 21 is the exposed first skin contact portion 11 that can be in contact with the skin.
  • the highest point A of the protective member 30 defines a second skin contact portion 30a that can be in contact with the skin.
  • the highest point A of the second skin contact portion 30a is higher than the highest point E of the first skin contact portion 11.
  • the first skin contact portion The highest point E of 11 is higher than the knife edge 21, and the highest point E of the first skin contact portion 11 is also located below the plane P defined by the highest point A of the second skin contact portion 30a and the knife edge 21; therefore, when shaving , The highest point A of the incision 21 and the second skin contact portion 30a is pressed against the skin 200, and the skin 200 distance D between the incision 21 and the highest point A of the second skin contact portion 30a is extended (see Figure 3), and the distance D is greater than D ⁇ shown in FIG.
  • the included angle ⁇ between the knife edge 21 and the arched skin 200 is increased, and the included angle ⁇ is greater than the ⁇ angle shown in FIG. 5 to reduce the irritation to the skin 200 and improve the shave comfort experience .
  • a new embodiment can be evolved on the basis of the razor head 100 described above, that is, the guard 30 and the front side wall 10a in FIG.
  • the other structure is the same as the shaving cutter head 100 described previously; therefore, the shaving cutter head 100 of the new embodiment is: in FIG. 4, shaving
  • the shaver head 100' includes a head skeleton 10' and a blade 20.
  • the cutter head frame 10 ⁇ includes a front side wall 10a ⁇ , a rear side wall 10b, and a connecting side wall 10c connected to the front side wall 10a ⁇ and the rear side wall 10b, and the connecting side wall 10c, the front side wall 10a ⁇ and the rear side wall 10b A accommodating space 10d is defined together.
  • the blade 10 is located in the accommodating space 10d.
  • the cutting edge 21 of the blade 20 faces the front side wall 10a ⁇ ; Section 11, the front side of the front side wall 10a ⁇ away from the incision 11 has a second skin contact portion 30a that can be in contact with the skin, and the highest point A of the second skin contact portion 30a is higher than the highest point E of the first skin contact portion 11.
  • the highest point E of the first skin contact portion 11 is higher than the knife edge 21, and the highest point E of the first skin contact portion 11 is also located below the plane P defined by the highest point A of the second skin contact portion 30a and the knife edge 1 .

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  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
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Abstract

一种剃须刀头（100），包括刀头骨架（10）及刀片（20）；刀头骨架（10）包含前侧壁（10a）、后侧壁（10b）及连接于前侧壁（10a）和后侧壁（10b）的连接侧壁（10c），连接侧壁（10c）、前侧壁（10a）及后侧壁（10b）共同界定出一容纳空间（10d）；刀片（20）位于容纳空间（10d）内，刀片（20）的刀口（21）朝向前侧壁（10a）；前侧壁（10a）邻近刀口（21）的后侧部具有可与皮肤接触的第一皮肤接触部（11），前侧壁（10a）远离刀口（21）的前侧部具有可与皮肤接触的第二皮肤接触部（30a），第二皮肤接触部（30a）的最高点（A）高于第一皮肤接触部（11）的最高点（E），第一皮肤接触部（11）的最高点（E）高于刀口（21），且第一皮肤接触部（11）的最高点（E）还位于由第二皮肤接触部（30a）的最高点（A）和刀口（21）共同界定的平面（P）的下方。该剃须刀头能减少对皮肤的刺激以提高剃刮的舒适性体验。

Description

剃须刀头 技术领域
本申请涉及剃须领域，尤其涉及一种剃须刀头。
背景技术
随着经济的不断发展及社会的不断进步，提供了丰富的物质消费品，为提高人们的生活水平及追求个性化的生活创造良好的条件，从而加速了物质消费品的需求量，而剃须刀就是诸多物质消费品中的一种。
其中，如图5所示，对于手动剃须刀来说，刀头300包含刀头骨架310及刀片320，刀头骨架310包含前侧壁310a、后侧壁310b及连接于前侧壁310a和后侧壁310b之间的连接侧壁310c，且前侧壁310a、后侧壁310b及连接侧壁310c共同界定一容纳空间310d，刀片320位于容纳空间310d内，且刀片320的刀口321朝向前侧壁310a，而前侧壁310a的顶面具有在剃须过程中与皮肤接触的皮肤接触部311，皮肤接触部311的高度由刀头骨架310的后至前方向呈递减布置，以确保在剃须过程中刀头300能更顺畅地顺着皮肤滑移；但是，由于皮肤接触部311的高度由刀头骨架310的后至前方向呈递减布置，故使得皮肤接触部311的最高点N往后偏置而与刀口321贴近，缩小最高点N与刀口321之间的间距D`，在剃须过程中，被皮肤接触部311的最高点M与刀口321所压的皮肤200拱起幅度大；正由于皮肤200拱起幅度大，从而导致刀口321与拱起皮肤200之间的夹角β越小，故对皮肤刺激更大，相应地，剃刮舒适性体验更差。
因此，急需要一种减少对皮肤刺激以提高剃刮舒适性体验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减少对皮肤刺激以提高剃刮舒适性体验的剃须刀头。
为实现上述目的，本申请提供一种剃须刀头，包括刀头骨架及刀片。所述刀头骨架包含前侧壁、后侧壁及连接于所述前侧壁和后侧壁的连接侧壁，所述连接侧壁、前侧壁及后侧壁共同界定出一容纳空间，所述刀片位于所述容纳空间内，所述刀片的刀口朝向所述前侧壁；所述前侧壁邻近所述刀口的后侧部具有可与皮肤接触的第一皮肤接部，所述前侧壁远离所述刀口的前侧部具有可与皮肤接触的第二皮肤接触部，所述第二皮肤接触部的最高点高于所述第一皮肤接触部的最高点，所述第一皮肤接触部的最高点高于所述刀口，且所述第一皮肤接触部的最高点还位于由所述第二皮肤接触部之最高点和刀口共同界定的平面的下方。
为实现上述的目的，本申请提供了一种剃须刀头，包括刀头骨架、刀片及防护件。所述刀头骨架包含前侧壁、后侧壁及连接于所述前侧壁和后侧壁的连接侧壁，所述连接侧壁、前侧壁及后侧壁共同界定出一容纳空间，所述刀片位于所述容纳空间内，所述刀片的刀口朝向所述前侧壁；所述防护件覆盖所述前侧壁远离所述刀口的前侧部，所述前侧壁邻近所述刀口的后侧部为裸露的可与皮肤接触的第一皮肤接触部，所述防护件的最高点周围界定出可与皮肤接触的第二皮肤接触部，所述第二皮肤接触部的最高点高于所述第一皮肤接触部的最高点，所述第一皮肤接触部的最高点高于所述刀口，且所述第一皮肤接触部的最高点还位于由所述第二皮肤接触部之最高点和刀口共同界定的平面的下方。
较佳地，所述第二皮肤接触部沿所述刀头骨架的前后方向为中间外凸的弧形结构。
较佳地，所述第二皮肤接触部之横截面的外轮廓为弧线，所述弧线的高度从邻近所述第一皮肤接触部的端点至远离所述第一皮肤接触部的端点方向呈先逐渐递增再逐渐递减的布置。
较佳地，所述弧线邻近所述第一皮肤接触部的延长线与所述第一皮肤接触 部相交。
较佳地，本申请的剃须刀头还包括安装于所述后侧壁上的润滑条，所述润滑条具有最高点低于所述刀口的第三皮肤接触部。
较佳地，所述刀片至少两个且沿所述刀头骨架的前后方向呈间隔开的并排布置，所述第二皮肤接触部的最高点和邻近所述第一皮肤接触部的刀片之刀口共同界定所述平面。
较佳地，所述第一皮肤接触部的横截面为直线段。
较佳地，所述前侧壁用于界定所述容纳空间的部位与所述第一皮肤接触部的交汇处为倒圆角结构。
较佳地，所述倒圆角结构的横截面轮廓与所述直线段相切。
与现有技术相比，由于防护件覆盖前侧壁远离刀口的前侧部，前侧壁邻近刀口的后侧部为裸露的可与皮肤接触的第一皮肤接触部，防护件的最高点周围界定出可与皮肤接触的第二皮肤接触部，第二皮肤接触部的最高点高于第一皮肤接触部的最高点，第一皮肤接触部的最高点高于刀口，且第一皮肤接触部的最高点还位于由第二皮肤接触部之最高点和刀口共同界定的平面的下方；故在剃刮时，由刀口和第二皮肤接触部之最高点贴压皮肤，延长刀口和第二皮肤接触部之最高点之间的皮肤距离，相应地减少刀口和第二皮肤接触部之最高点之间的皮肤拱起幅度，且借助第一皮肤接触部的最高点还位于由第二皮肤接触部之最高点和刀口共同界定的平面的下方，对刀口和第二皮肤接触部之最高点之间的皮肤起适当支撑，并确保被支撑的皮肤高过刀口，因此，增加了刀口与拱起皮肤之间的夹角，达到减少对皮肤刺激和提高剃刮舒适性体验。
附图说明
图1是本申请一实施例的剃须刀头被横截平面剖切后的内部结构示意图。
图2是图1所示的剃须刀头在剃刮时与皮肤接触的状态示意图。
图3是图2所示的剃须刀头在展示出贴压受力处和间距的状态示意图。
图4是本申请另一实施例的剃须刀头被横截平面剖切后的内部结构示意图。
图5是现有的剃须刀头在剃刮时与皮肤接触的状态示意图。
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1，本申请一实施例的剃须刀头100包括刀头骨架10、刀片20及防护件30。刀头骨架10包含前侧壁10a、后侧壁10b及连接于前侧壁10a和后侧壁10b的连接侧壁10c，连接侧壁10c、前侧壁10a及后侧壁10b共同界定出一容纳空间10d，较优的是，连接侧壁10c、前侧壁10a及后侧壁10b三者共同构成一体式结构，例如采用但不限于此的注塑成型工艺以使它们形成一体式结构，使得它们之间不可拆分，一方面增加刀头骨架10的强度，另一方面便于刀头骨架10的制造。刀片20位于容纳空间10d内，为刀片20的安装及工作提供所需空间；刀片20的刀口21朝向前侧壁10a。防护件30覆盖前侧壁10a远离刀口21的前侧部，较优的是，在图1中，前侧部的横截面轮廓的左侧由水平线段和竖直线段构成，中间为弧线段，而右侧水平线段，但不限于此；另，防护件30覆盖于前侧部的方式有，防护件30可以通过注塑成型方式与前侧壁10a一体成型，也可以通过粘胶方式与前侧壁10a固定在一起，或者通过超声波方式与前侧壁10a固定在一起，从而使得防护件30覆盖于前侧壁10a的前侧部处，但不以此为限；前侧壁10a邻近刀口21的后侧部为裸露的可与皮肤接触的第一皮肤接触部11，防护件30的最高点A周围界定出可与皮肤接触的第二皮肤接触部30a，第二皮肤接触部30a的最高点A高于第一皮肤接触部11的最高点E，第一皮肤接触部11的最高点E高于刀口21，且第一皮肤接触部11的最高点E还位于由第二皮肤接触部30a之最高点A和刀口21共同界定的平面P的下方，状态见图1所示。具体地，本申请的剃须刀头100还包括安装于后侧壁10b的润滑条40，较优的是，润滑条40的横截面呈“T”字形，润滑条40具有最高点F低于刀口21的第三皮肤接触部41，以增加剃刮舒适性，状态见图1所示。需 要说明的是，在图1中，H1表示刀口21所在的高度，而H2表示第三皮肤接触部41的最高点F所在高度。更具体地，如下：
如图1所示，第二皮肤接触部30a沿刀头骨架10的前后方向为中间外凸的弧形结构；具体地，第二皮肤接触部30a之横截面的外轮廓为弧线31，弧线31的高度从邻近第一皮肤接触部11的端点B至远离第一皮肤接触部11的端点C方向呈先逐渐递增再逐渐递减的布置，这样设计在剃刮时使得皮肤更顺畅地沿着第二皮肤接触部30a滑向刀口21处，阻力更小；更具体地，弧线31邻近第一皮肤接触部11的延长线32(在图1的右上方放大图中用虚线展示)与第一皮肤接触部11相交，这样设计使得第一皮肤接触部11能对被第二皮肤接触部30a和刀口21所贴压之间的皮肤200进行适当支撑，故第二皮肤接触部30a和刀口21所贴压之间的皮肤200拱起更小，故皮肤200刺激更小，状态见图2和图3所示。
如图1至图3所示，刀片20至少两个且沿刀头骨架10的前后方向呈间隔开的并排布置，第二皮肤接触部30a的最高点A和邻近第一皮肤接触部11的刀片20之刀口21共同界定平面P，以借助多个刀片20去提高剃刮效率。
如图1所示，第一皮肤接触部11的横截面为直线段11a，前侧壁10a用于界定容纳空间10d的部位12与第一皮肤接触部11的交汇处为倒圆角结构13，较优的是，倒圆角结构13的横截面轮廓与直线段11a相切，以确保皮肤200更平滑顺畅地滑向刀口21。
与现有技术相比，由于防护件30覆盖前侧壁10a远离刀口21的前侧部，前侧壁10a邻近刀口21的后侧部为裸露的可与皮肤接触的第一皮肤接触部11，防护件30的最高点A周围界定出可与皮肤接触的第二皮肤接触部30a，第二皮肤接触部30a的最高点A高于第一皮肤接触部11的最高点E，第一皮肤接触部11的最高点E高于刀口21，且第一皮肤接触部11的最高点E还位于由第二皮肤接触部30a之最高点A和刀口21共同界定的平面P的下方；故在剃刮时，由刀口21和第二皮肤接触部30a之最高点A贴压皮肤200，延长刀口21和第二皮肤接触部30a之最高点A之间的皮肤200距离D(见图3)，距离D大于图5中 所展示的D`，相应地减少刀口21和第二皮肤接触部30a之最高点A之间的皮肤200拱起幅度，且借助第一皮肤接触部11的最高点E还位于由第二皮肤接触部30a之最高点A和刀口21共同界定的平面P的下方，对刀口21和第二皮肤接触部30a之最高点A之间的皮肤200起适当支撑，并确保被支撑的皮肤200高过刀口21，因此，增加了刀口21与拱起皮肤200之间的夹角α，该夹角α大于图5中所展示的β角，达到减少对皮肤200刺激和提高剃刮舒适性体验。
需要说明的是，如图4中，可在前面描述到的剃须刀头100的基础上演化出一个新的实施例，即是将图1中的防护件30与前侧壁10a合成一体以形成新的实施例中的刀头骨架10之前侧壁10a`，其它结构与前面描述到剃须刀头100相同；因此，新实施例的剃须刀头100`是：在图4中，剃须刀头100`包括刀头骨架10`及刀片20。刀头骨架10`包含前侧壁10a`、后侧壁10b及连接于前侧壁10a`和后侧壁10b的连接侧壁10c，连接侧壁10c、前侧壁10a`及后侧壁10b共同界定出一容纳空间10d，刀片10位于容纳空间10d内，刀片20的刀口21朝向前侧壁10a`；前侧壁10a`邻近刀口21的后侧部具有可与皮肤接触的第一皮肤接部11，前侧壁10a`远离刀口11的前侧部具有可与皮肤接触的第二皮肤接触部30a，第二皮肤接触部30a的最高点A高于第一皮肤接触部11的最高点E，第一皮肤接触部11的最高点E高于刀口21，且第一皮肤接触部11的最高点E还位于由第二皮肤接触部30a之最高点A和刀口1共同界定的平面P的下方。
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，包括刀头骨架及刀片，所述刀头骨架包含前侧壁、后侧壁及连接于所述前侧壁和后侧壁的连接侧壁，所述连接侧壁、前侧壁及后侧壁共同界定出一容纳空间，所述刀片位于所述容纳空间内，所述刀片的刀口朝向所述前侧壁，其特征在于，所述前侧壁邻近所述刀口的后侧部具有可与皮肤接触的第一皮肤接部，所述前侧壁远离所述刀口的前侧部具有可与皮肤接触的第二皮肤接触部，所述第二皮肤接触部的最高点高于所述第一皮肤接触部的最高点，所述第一皮肤接触部的最高点高于所述刀口，且所述第一皮肤接触部的最高点还位于由所述第二皮肤接触部之最高点和刀口共同界定的平面的下方。
  2. 一种剃须刀头，包括刀头骨架及刀片，所述刀头骨架包含前侧壁、后侧壁及连接于所述前侧壁和后侧壁的连接侧壁，所述连接侧壁、前侧壁及后侧壁共同界定出一容纳空间，所述刀片位于所述容纳空间内，所述刀片的刀口朝向所述前侧壁，其特征在于，所述剃须刀头还包括防护件，所述防护件覆盖所述前侧壁远离所述刀口的前侧部，所述前侧壁邻近所述刀口的后侧部为裸露的可与皮肤接触的第一皮肤接触部，所述防护件的最高点周围界定出可与皮肤接触的第二皮肤接触部，所述第二皮肤接触部的最高点高于所述第一皮肤接触部的最高点，所述第一皮肤接触部的最高点高于所述刀口，且所述第一皮肤接触部的最高点还位于由所述第二皮肤接触部之最高点和刀口共同界定的平面的下方。
  3. 根据权利要求1或2所述的剃须刀头，其特征在于，所述第二皮肤接触部沿所述刀头骨架的前后方向为中间外凸的弧形结构。
  4. 根据权利要求3所述的剃须刀头，其特征在于，所述第二皮肤接触部之横截面的外轮廓为弧线，所述弧线的高度从邻近所述第一皮肤接触部的端点至远离所述第一皮肤接触部的端点方向呈先逐渐递增再逐渐递减的布置。
  5. 根据权利要求4所述的剃须刀头，其特征在于，所述弧线邻近所述第一皮肤接触部的延长线与所述第一皮肤接触部相交。
  6. 根据权利要求1或2所述的剃须刀头，其特征在于，还包括安装于所述后侧壁上的润滑条，所述润滑条具有最高点低于所述刀口的第三皮肤接触部。
  7. 根据权利要求1或2所述的剃须刀头，其特征在于，所述刀片至少两个且沿所述刀头骨架的前后方向呈间隔开的并排布置，所述第二皮肤接触部的最高点和邻近所述第一皮肤接触部的刀片之刀口共同界定所述平面。
  8. 根据权利要求1或2所述的剃须刀头，其特征在于，所述第一皮肤接触部的横截面为直线段。
  9. 根据权利要求8所述的剃须刀头，其特征在于，所述前侧壁用于界定所述容纳空间的部位与所述第一皮肤接触部的交汇处为倒圆角结构。
  10. 根据权利要求9所述的剃须刀头，其特征在于，所述倒圆角结构的横截面轮廓与所述直线段相切。
PCT/CN2020/083250 2020-04-03 2020-04-03 剃须刀头 WO2021196170A1 (zh)

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