US3183590A - Cover plate for electric hairclipping device - Google Patents

Cover plate for electric hairclipping device Download PDF

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Publication number
US3183590A
US3183590A US329848A US32984863A US3183590A US 3183590 A US3183590 A US 3183590A US 329848 A US329848 A US 329848A US 32984863 A US32984863 A US 32984863A US 3183590 A US3183590 A US 3183590A
Authority
US
United States
Prior art keywords
cover plate
hair
blade assembly
clipping device
blade
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US329848A
Other languages
English (en)
Inventor
Starre Gerrit
Witziers Willem
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Philips Corp
North American Philips Co Inc
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3183590A publication Critical patent/US3183590A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B26B19/38—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
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/06—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving co-operating cutting elements both of which have shearing teeth

Definitions

  • the present invention relates to an electric hair-clipping device having a blade assembly including a blade driven with an oscillatory motion substantially in a straight line, and more particularly to a separate cover plate for the blade assembly which has an outwardly curved upper surface.
  • a hair-clipping device for use in the more or less concave areas of the body, particularly in the arm pits.
  • the shape ⁇ of the device is such as to enable the entire area to be satisfactorily clipped with the aid of the device without the risk of skin irritation owing to the fact that the device is required to be locally pressed aga-inst the skin with excessive pressure or that protruding edges give rise to smarting pain.
  • the motor casing of such a hair-clipping device frequently is rod-shaped, the blade assembly being arranged at one end face under a cover plate.
  • the invention is characterized in that the outer edge of the head compr-ises forwardly projecting portions of the cover plate, one on each side of the blade assembly, which show a curvature extending to points on either side of the rows of teeth, at which areas the sides of the cover plate terminate into two rounded points, between which the front edge of the cover plate, which is cut otf straight, stands back.
  • the cover plate provides such a shape of the component parts which come into contact with the skin, that a light pressure is sutlicient when using the shaver and any likelihood of irritation is avoided.
  • the determination of the shape of the circumference of the head may advantageously be taken over from the end edge of the housing of the hair-clipping device opposite the blade assembly, which for similar reasons has a substantially circular or elliptical boundary, and continued by the cover plate in a favorable embodiment, which is characterized in that the upper surface of the cover plate is substantially in the form of an ellipse of which a segment is cut off along a chord at right angles to the major axis.
  • FIGURE 1 is a part sectional View, part elevation of a hair-clipping device provided with a cover plate in accordance with the invention and to be attached to a motor housing (not shown);
  • FIGURE 2 is a top plan view thereof
  • FIGURE 3 is a side elevation of the cover plate
  • FIGURE 4 is a rear view of this plate.
  • a hair-clipping device 1 which is adapted to be attached as a separate unit to a motor housing or a handle provided with a dr-iving shaft. Its lower end has a circular cross-section so that it lits on a cylindrical motor housing or handle.
  • a coupling is established between a driving shaft projecting from the motor housing or handle and a driving spindle 2 which is provided in the hairclipping device and the longitudinal axis of which is referred to by the reference numeral 3. Because such a coupling is well known, it is not described more fully herein.
  • a pin 4 is eccentrically secured to the end of the 4spindle 2 and drives a toothed hair-clipping blade 5 in an oscillatory manner in the direction of the longitudinal axis of the blade.
  • the fixed blade 6 is provided with a row of teeth 7 (FIGURE 2) which for the sake of simplicity are shown as square teeth.
  • the upper part of the hair-clipping device 1 is cut away into the portion 22 so that the cutting teeth of the blade assembly just protrude sufficiently.
  • the hair-clipping device protrudes outwardly at 8, and the plan View (FIGURE 2) shows that the boundary edge at this side is substantially in the form of an arc of a circle.
  • the projection portion 9 is used for detachably securing the cover plate 10 with the aid of a screw 23.
  • the outer edges 12 and 13 of the hair-clipping device on either side of the blade assembly 5, 6 are constituted by portions of the cover plate 10 which project beyond the upper surface of the housing 1. These portions have a curvature which is a continuation of the curvature of the edge 8 of the end face opposite the blade assembly 5, 6.
  • the said curved lateral edges 12 and 13 of the cover plate 10 terminate laterally of the rows of teeth in two rounded points 14a ⁇ and 15a at the ends of forwardly projecting portions 14 and 15 respectively.
  • the front edge 16 of the cover plate is cut od along a straight line and is set back relatively to the points or projecting portions 14 and 15 so as to lie immediately behind the teeth of the blade assembly.
  • the cover plate constitutes an end face, a pian view of which is substantially in the form of an ellipse at one end of which a segment is cut 0E along a chord 16 at right angles to the major axis.
  • the lower surface 17 of the cover plate liti may be a plane surface and there is no objection to the lateral edges 12 and 13 being secured thereto at right angles, however, as FIGURE 4 shows, these' edges merge by curves 18 and 19 into the curved end face 11.
  • FIGURES 1 and 3 show that the lower side of the cover plate forms a cavity (cf. the brokeny line 2t) of FIGURE 3) which is bounded so that the-blades 5 and 6 are suitably enclosed.
  • the blade 5 is pressed resiliently to the fixed blade 6, however, the springs providing the pressure are not shown, not only ⁇ for the sake of simplicity but also because these springs may be incorporated in ⁇ known manner.
  • the boundaryZ of the said cavity extends substantially in a straight line to the cutting teeth so as to form a tapering edge 21which engages the upper surface of the fixed blade 6, while only the rounded points 14 and 15 project beyond the blade assembly.
  • This tapering edge 21 permits satisfactory contact of the blades and the skin without the use of great pressure and without causing irritation to the skin.
  • a cover plate for an electric hair-clipping device to be used with an oscillating type blade assembly provided with a linear front edge and having an outwardly curved upper surface in the form of an ellipse and provided with a segment at one end thereof cut off along a chord extending substantially at right angles to the major axis of said ellipse, opposite edges of said cover plate on either side of said blade Vassembly having forwardly projecting portions, each of the latter having an outer edge curvature continuing laterally of the blade assembly and terminating in rounded points, and said linear front edgey ofv said cover plate being located between but set back from said rounded points.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US329848A 1962-12-17 1963-12-11 Cover plate for electric hairclipping device Expired - Lifetime US3183590A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL286856 1962-12-17

Publications (1)

Publication Number Publication Date
US3183590A true US3183590A (en) 1965-05-18

Family

ID=19754291

Family Applications (1)

Application Number Title Priority Date Filing Date
US329848A Expired - Lifetime US3183590A (en) 1962-12-17 1963-12-11 Cover plate for electric hairclipping device

Country Status (9)

Country Link
US (1) US3183590A (enrdf_load_stackoverflow)
BE (1) BE641358A (enrdf_load_stackoverflow)
CH (1) CH415347A (enrdf_load_stackoverflow)
DE (1) DE1202176B (enrdf_load_stackoverflow)
DK (1) DK107011C (enrdf_load_stackoverflow)
ES (1) ES294497A1 (enrdf_load_stackoverflow)
GB (1) GB990014A (enrdf_load_stackoverflow)
NL (1) NL286856A (enrdf_load_stackoverflow)
SE (1) SE303107B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419959A (en) * 1968-01-18 1969-01-07 Earl W. Lively Jr. Protective cover for injector-type safety razor head
USD408587S (en) * 1997-08-08 1999-04-20 U.S. Philips Corporation Click on hair trimmer device for a dry shaver

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331417A (en) * 1940-05-22 1943-10-12 Naegeli Rudolf Shaving device
US2695448A (en) * 1953-03-09 1954-11-30 James R Cavanaugh Single edge converter for double-edge safety razors
US2878563A (en) * 1957-04-09 1959-03-24 Schick Inc Head guard for electric shaver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331417A (en) * 1940-05-22 1943-10-12 Naegeli Rudolf Shaving device
US2695448A (en) * 1953-03-09 1954-11-30 James R Cavanaugh Single edge converter for double-edge safety razors
US2878563A (en) * 1957-04-09 1959-03-24 Schick Inc Head guard for electric shaver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419959A (en) * 1968-01-18 1969-01-07 Earl W. Lively Jr. Protective cover for injector-type safety razor head
USD408587S (en) * 1997-08-08 1999-04-20 U.S. Philips Corporation Click on hair trimmer device for a dry shaver

Also Published As

Publication number Publication date
DE1202176B (de) 1965-09-30
GB990014A (en) 1965-04-22
SE303107B (enrdf_load_stackoverflow) 1968-08-12
BE641358A (enrdf_load_stackoverflow) 1964-06-16
CH415347A (de) 1966-06-15
DK107011C (da) 1967-04-10
NL286856A (enrdf_load_stackoverflow)
ES294497A1 (es) 1964-01-16

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