DE3030750A1 - Ball-point pen with knife blades - has blades masked by ball-point when used for writing - Google Patents

Abstract

The ballpoint pen or pen cartridge has knife blades to allow easy opening of cartons etc. One or more blades (2) are so mounted on the tip of the cartridge (1) that they are masked by the ballpoint (3) when this is used for writing. Alternatively, a blade can slide in a guide rail in the pen clip, being guarded when not in use.

Description

@ E S A H R E T @

Ballpoint pen or ballpoint pen leads with cutting device below Described, and shown in the drawing under Fig. A invention is intended to be a Begagnen insitte, which spreads in connection with ballpoint pens or their tines has, namely that ballpoint pens are used to open cardboard boxes.

In order to limit this misappropriation, the Tip of the ballpoint pen refill (1) two symmetrically arranged cutting surfaces (2) to attach. The ballpoint pen tip (3) is slotted so that the cutting surfaces (2) Get a guided tour, and at the same time an accident-proof admission for the Provide cutting surfaces (2).

With the ballpoint pen refill pushed out for writing (1) the cutting surfaces (2) are protected in the slot of the ballpoint pen tip (3).

Only when the ballpoint pen refill (1) is fully pushed out will the cutting surfaces (2) Visible because the conical shape of the ballpoint pen tip! 3) The cutting surfaces (2) now releases for the cutting process.

If the pressure on the kigeo pen refill (1) is reduced, the ballpoint pen refill becomes (1), and thus the cutting surfaces (2) through the pressure spring (4) into the protective Ballpoint pen tip (3) pushed back.

Alternatively, there is a cutting device on the clamping bracket of the ballpoint pen possible, Fig. B. Shown is e.g. a cutting edge (5) that can be slid in the clamping bracket (6) is housed. The cutting edge (5) is thus exaggerated by pressure on the Tip (s) of the cutting edge (5) can be moved in the direction of the arrow (7). This will make the cutting edge (5) released for the cutting process.

If pressure is applied in the opposite direction, the cutting edge (5) rests against it in the protective guide rail (9) of the clamping bracket (6). The cutting edge (5) can can also be rotated or tilted both on the inside and on the outside of the clamp (6) can be attached, wherein the clamping bracket (6) itself can still be rotated or tilted can be fastened to the ballpoint pen.

Claims (2)

P A T E N T A N S P R Ü C H E Ballpoint pens or ballpoint pen refills with cutting device 1. Ballpoint pen or ballpoint pen refills with cutting device characterized in that according to Fig. A at the tip of the ballpoint pen refill (1) one or more cutting surfaces (2) are attached in any way so that that they are covered by the tip of the ballpoint pen (3) when writing. 2. Ballpoint pen or ballpoint pen refills with cutting device characterized in that, according to FIG. 3, a cutting edge (5) in the clamping bracket (6) of the ballpoint pen is slidably mounted in a guide rail (9). Furthermore, that all other possibilities of attaching cutting devices of any kind on the clamping bracket (6) of the ballpoint pen should be protected.