ELECTRIC SCISSORS

• US 3,631,596 A
• Filed: 03/30/1970
• Issued: 01/04/1972
• Est. Priority Date: 04/25/1969
• Status: Expired due to Term

• Current Assignee: Heinrich Glaus
• Original Assignee: Heinrich Glaus
• Inventors: Glaus, Heinrich
• Primary Examiner(s): Condon, Theron E.
• Assistant Examiner(s): Peters, J. C.
• Application Number:
  US05/023,722
• Time in Patent Office: 645 Days
• Field of Search: 30/228,DIG.1,247 310/50,89,80 320/2
• US Class Current: 30/228
• CPC Class Codes: B26B 15/00 Hand-held shears with motor-driven blades

Abstract

Electric scissors having a stationary blade and an oscillating blade driven by a motor, all mechanical and electrical parts, particularly the scissors, motor and battery being accommodated and mounted in a handle-shaped casing made of two assembled parts of plastic material without any screw-fastened portions by means of elastic portions latched to the casing, and all of said mechanical and electrical parts being readily exchangeable.

Claims

1. Electric scissors having a stationary blade and an oscillating blade and comprising in combination a handle-shaped casing in two parts, a battery being shifted into the rear part of the casing and a motor being shifted into a forepart of the casing and said battery and motor being secured in position when said casing parts are assembled, and the scissors being inserted into the forepart of the casing from outside and secured therein by means of a stop bracket latched on the foreportion of the casing.

2. Electric scissors according to claim 1, wherein a stop element for the motor is latched with retaining springs in openings of the forecasing part, said stop element having contact springs for connection of the motor to the conducting inner side of the rear casing part.

3. Electric scissors according to claim 2, wherein said stop element has an annular portion of insulating material, a metal ring with latch springs and contact springs being fixed on said annular portion.

4. Electric scissors according to claim 1, wherein a switch slider is shifted into a groove open at the end of one casing part, said groove being closed at its open end by the other of said casing parts.

5. Electric scissors according to claim 4, wherein said switch slider acts on a contact spring through a pressure-transmitting element, for instance a ball, loosely inserted into a bore of the casing wall.

6. Electric scissors according to claim 1, wherein an eccentric drive pin of the motor shaft engages an opening of a transmitting element swingably mounted on a drive arm of the oscillating scissors blade round an axis parallel to the oscillating axis of the scissors blade.

7. Electric scissors according to claim 6, wherein said drive arm of the scissors blade forms a fork in which said transmitting element is swingably mounted.

8. Electric scissors according to claim 1, wherein said stationary blade has a pivot shaft for said oscillating blade, said stationary blade having an anchoring arm engaging a recess of said forepart of the casing and said oscillating blade being urged against said stationary blade by means of a spring.

9. Electric scissors according to claim 8, wherein a slide disc, for instance a Teflon disc is inserted between said blades.

10. Electric scissors according to claim 8, wherein said pivot shaft is mounted with its ends in bearing pans of the forepart of the casing, said shaft ends being held in said bearing pans by said stop bracket.

11. Electric scissors according to claim 1, wherein a slide pad is removably applied to said stationary blade.