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Patent Searching and Data


Title:
HAIR CUTTING UNIT HAVING A COUPLING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2019/101496
Kind Code:
A3
Abstract:
The invention relates to a hair cutting unit (7a) for use in a shaving device (1). The hair cutting unit comprises an external cutting member (21a) having a shaving surface (29) with hair-entry openings (31), and an internal cutting member (23a) which is rotatable relative to the external cutting member about an axis of rotation (41) and which has a plurality of hair-cutting elements (35). The hair cutting unit further comprises a supporting member (25a) having a skin contacting surface (43) surrounding the external cutting member, and a retaining component (27a) which is releasably couplable to the supporting member by means of a coupling structure (53, 55) and which is configured to retain the external cutting member in an operational position relative to the supporting member in an assembled condition of the hair cutting unit. In said assembled condition a retained element (33) of the external cutting member is retained between a first retaining member (69) of the retaining component and a second retaining member (79) of the supporting member at least in an axial direction parallel to the axis of rotation. In said assembled condition and in a parallel orientation of the shaving surface relative to the skin contacting surface, the shaving surface protrudes relative to the skin contacting surface in the axial direction over an exposure distance (E). The coupling structure comprises a first guiding member (53) provided on the supporting member and a second guiding member (55) provided on the retaining component. The first and second guiding members are configured to mutually engage when the retaining component is in any angular position between a first angular position and a second angular position about the axis of rotation relative to the supporting member and to establish the assembled condition of the hair cutting unit in the second angular position of the retaining component. According to the invention, the first and second guiding members are further configured such that, when the first and second guiding members mutually engage in the first angular position of the retaining component, the retained element of the external cutting member is moveable between the first and second retaining members parallel to the axis of rotation over a distance (D) which is at least equal to the exposure distance.

Inventors:
PAAUW, Hendrik, Klaas (High Tech Campus 5, 5656 AE Eindhoven, 5656 AE, NL)
SEIP, Hilde (High Tech Campus 5, 5656 AE Eindhoven, 5656 AE, NL)
Application Number:
EP2018/080074
Publication Date:
July 04, 2019
Filing Date:
November 04, 2018
Export Citation:
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Assignee:
KONINKLIJKE PHILIPS N.V. (High Tech Campus 5, 5656 AE Eindhoven, 5656 AE, NL)
International Classes:
B26B19/14
Domestic Patent References:
WO2014020500A12014-02-06
WO2015169625A12015-11-12
Foreign References:
US2565828A1951-08-28
US2337391A1943-12-21
US3233323A1966-02-08
EP0231966A11987-08-12
Attorney, Agent or Firm:
WOLFS, Marc, Johannes, Maria et al. (Philips International B.V. – Intellectual Property & Standards High Tech Campus 5, 5656 AE Eindhoven, 5656 AE, NL)
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