US3494030A - Scissors,especially for hairdressers and barbers - Google Patents

Scissors,especially for hairdressers and barbers Download PDF

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Publication number
US3494030A
US3494030A US668404A US3494030DA US3494030A US 3494030 A US3494030 A US 3494030A US 668404 A US668404 A US 668404A US 3494030D A US3494030D A US 3494030DA US 3494030 A US3494030 A US 3494030A
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US
United States
Prior art keywords
blade
scissors
handle
cutting
pivot
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
US668404A
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English (en)
Inventor
Alfred Niehaus
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.)
Individual
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Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3494030A publication Critical patent/US3494030A/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
    • B26B13/00—Hand shears; Scissors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00—Hand shears; Scissors
    • B26B13/22—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument
    • B26B13/24—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument to aid hair cutting

Definitions

  • the present invention relates to a pair of scissors, especially for hairdressers and barbers, the halves being divided into handle and blade.
  • Scissors the halves of which are divided into handle and blade are already known. However, said division has not been effected with a view to improved cutting, but, for example, merely to be able to adjust the handles, if the scissors have been provided with blades which have been designed with cutting edges along either side and if one or the other cutting edge of the blades is to be used for cutting.
  • the result will be that the scissors are cutting so that the cut material will be thrown downwards, despite of that, however, the blades will always remain at the point contact required in the face of the 3,494,030 Patented Feb. 10, 1970 forces applied, upon cutting, at the eyes of the halves or handles respectively and directed towards pressing together of the cutting edges; for due to said division and minor tensile play of the handles the forces cannot have any effect on pressing apart the cutting edges, on the contary, a conversion into pressing together the cutting edges will occur.
  • the division area may have been designed such that the blade at the side of the handle is projecting beyond the pivot contacting the surface of the other half facing said blade and overlapping the projecting part by means of the handle, while the end of the projecting blade portion is subject to an inclined slope and the nail is passing the handle and the blade with radial play.
  • the blade portion projecting in the direction of the handle results in a tension bridge between its area of contact at the other half and the contact point of the cutting edges which is independent of the forces at the handle eyes acting towards pressing apart of the cutting edges. 'In this case the inclination prevents that upon tilting of the handle a force is applied at the end of the projecting blade portion acting towards tilting off of one cutting edge from the other cutting edge.
  • the contact area between the projecting blade portion and the other half may also be provided by an elevation at the projecting blade portion or at the half. Said elevation is favorable in that the pressure exerted by one half or handle upon cutting results in a contact of the cutting edges against each other.
  • the parts engaging at the pivot that is, blade and handle are dimensioned such that the pivot at the divided half has the same outer dimensions than those at the half which has not been divided.
  • the drawing shows an example of a construction according to the present invention.
  • FIG. 1 is a top view of a pair of scissors in the open state.
  • FIG. 2 is a longitudinal section of the pivot.
  • FIG. 3 is a section along line 33 in FIG. 2.
  • FIG. 4 is a longitudinal section corresponding to FIG. 2 in which the contact area between blade and handle is an elevation on the handle side.
  • the scissors consist of the two halves 1 and 2 which are connected with each other at the hinge by means of the pivot 3 which in the present embodiment is a screw.
  • the blade has been defined as a, the pivot as b, the handles as 0 together with the eyes d, and the pivot as 3.
  • the half 1 has been divided; the blade a and the handle 0 are connected such that upon cutting the blade is following the movement of the handle, while however the handle will be able to slightly tilt in the direction of its longitudinal axis with respect to the blade.
  • the arm part serving as the hand grip, is provided with side cheeks 4.
  • the scissors blade end 5 is reduced in width by the thickness of side cheeks 4 and is of rectangular cross-section. This blade end 5, whose width is reduced, engages between the side cheeks.
  • the underside of the blade end protrudes against the other scissors arm in the form of a rise, in that the underside of the blade end rises toward the terminal edge, against the other scissors arm.
  • This projection, or rise, of the underside, constituted by an ascent, is designated 7 The rise lies against the other scissors arm.
  • FIGURE 4 there is providedinstead of the ascent of the underside of the blade end against the latters terminal edge, for the formation of a risea lateral rib 8, protruding against the other scissors arm, at the underside of the terminal edge of blade end 5.
  • This lateral rib has a roughly wart-shaped cross-section. The rib rests against the other scissors arm.
  • Lateral rib 8 can also be provided on the other cissors arm, toward which blade end faces with its underside. In this case, the underside of blade end 5 is fiat.
  • the engaging parts of blade and handle have been dimensioned such that the joint at the divided half does not have any other outer dimensions than those at the half which has not been divided.
  • the scissors according to the present invention are intended for use with the right hand; the halves are arranged in a manner which will be employed with scissors which are intended for the left hand.
  • a pair of scissors comprising:
  • first and second scissors arms each having a handle and a cutting blade, at least said first of which arms consists of a separate handle and cutting blade, each overlapping the other and a pivot, and being joined at said pivot,
  • said second of said arms adapted to be activated by the thumb of the right hand, lying on the side of said cutting edge facing toward the right hand,

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)
US668404A 1966-09-21 1967-09-18 Scissors,especially for hairdressers and barbers Expired - Lifetime US3494030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN0029204 1966-09-21

Publications (1)

Publication Number Publication Date
US3494030A true US3494030A (en) 1970-02-10

Family

ID=7344993

Family Applications (1)

Application Number Title Priority Date Filing Date
US668404A Expired - Lifetime US3494030A (en) 1966-09-21 1967-09-18 Scissors,especially for hairdressers and barbers

Country Status (5)

Country Link
US (1) US3494030A (ref)
BE (1) BE704150A (ref)
CH (1) CH478637A (ref)
DE (1) DE1553775A1 (ref)
NL (1) NL6712731A (ref)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834022A (en) * 1973-07-12 1974-09-10 Wiss J & Sons Low-profile floating blade scissors or shears
USD302783S (en) 1986-06-04 1989-08-15 Plus Corporation Scissors

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US222672A (en) * 1879-12-16 Improvement in scissors and shears
US2009502A (en) * 1934-09-08 1935-07-30 Earl C Lambert Shears
US2758372A (en) * 1955-11-01 1956-08-14 Elizabeth Gammons Scissors
US3052026A (en) * 1960-09-29 1962-09-04 Richards Bros & Sons Ltd Scissors, shears and like implements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US222672A (en) * 1879-12-16 Improvement in scissors and shears
US2009502A (en) * 1934-09-08 1935-07-30 Earl C Lambert Shears
US2758372A (en) * 1955-11-01 1956-08-14 Elizabeth Gammons Scissors
US3052026A (en) * 1960-09-29 1962-09-04 Richards Bros & Sons Ltd Scissors, shears and like implements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834022A (en) * 1973-07-12 1974-09-10 Wiss J & Sons Low-profile floating blade scissors or shears
USD302783S (en) 1986-06-04 1989-08-15 Plus Corporation Scissors

Also Published As

Publication number Publication date
DE1553775A1 (de) 1970-12-10
NL6712731A (ref) 1968-03-22
BE704150A (ref) 1968-02-01
CH478637A (de) 1969-09-30

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