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Hair-cutting unit for a shaving device

A technology of hair cutting, cutting elements, applied in the direction of metal processing, etc., to achieve the effect of fast and close shaving

Pending Publication Date: 2020-09-29
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] A disadvantage of such known hair cutting units is that the extent to which the skin bulges into the hair inlet slit varies largely depending on the pressure with which the user presses the outer cutting member against the skin

Method used

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  • Hair-cutting unit for a shaving device
  • Hair-cutting unit for a shaving device
  • Hair-cutting unit for a shaving device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] as in figure 1 and figure 2 As can be seen in , the shaving device 1 according to the example shown has a main body 2 , a shaving unit 3 coupled to the main body via a support member 4 . The shaving unit 3 has three hair cutting units 5 . Each of the hair cutting units 5 has an outer cutting member 6 having an annular wall 12 and an inner cutting member 7 ; The direction of rotation (sense of rotation) 8 rotates so that the cutting elements 10 of the inner cutting member 7 slide along the inward facing surface 18 of the annular wall 12 . The annular wall is provided with slits 15 which alternate in the circumferential sense with the strip portions 16 of the annular wall 12 . The cutting elements 10 are distributed (preferably, uniformly) in a circumferential sense around the axis of rotation 9, and each cutting element has a cutting edge 11 arranged to cooperate with opposite cutting edges 17, which opposite cutting edges Located at the position where the second si...

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PUM

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Abstract

The embodiment of the invention relates to a hair-cutting unit for a shaving device. A hair-cutting unit with rotatable cutting elements for use in a shaving device has hair entry slits of which at least a side surface facing in a direction generally opposite to a direction of rotation of the cutting elements, has a relatively flat and oblique intermediate segment between an upper segment forminga curved transition to the outer surface of the annular wall and a lower segment which serves for catching hairs and urging these into an upright position for achieving a close shave. Within a relatively broad range of shaving pressures, the pleat of skin bulging into a hair-cutting slit contacts a portion or at most all of the intermediate segment. Because the intermediate segment is relatively flat, changes in the extent of skin penetration in response to changes in shaving pressure are significantly reduced.

Description

technical field [0001] The present invention relates to a hair cutting unit for use in a shaving device, the hair cutting unit having an outer cutting member and an inner cutting member, the inner cutting member being rotatable in a rotational direction about an axis of rotation relative to the outer cutting member, wherein: [0002] - the inner cutting member comprises a plurality of cutting elements, each cutting element having a cutting edge having a respective main direction component extending in radial direction with respect to the axis of rotation and located on the side of the cutting element guided in the direction of rotation ; [0003] - the outer cutting member has an annular wall and a plurality of hair inlet slits, the annular wall has an outer surface facing away from the inner cutting member, the plurality of hair inlet slits are separated from each other by the hair guide strip portion of the annular wall, each hair inlet slit and each hair inlet slit The hai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26B19/14B26B19/38
CPCB26B19/14B26B19/143B26B19/141
Inventor I·格拉思梅杰M·Z·范拉尔特H·尼曼
Owner KONINKLJIJKE PHILIPS NV