DE1272169B - Cutting device - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN 4MTW> PATENT OFFICE

EDITORIAL

IntCL:

B 26b

German class: 69-25

Number: 1272169

File number: P 12 72 169.6-15 (W 39874}

Filing date: September 8, 1965

Open date: 4th July 1968

The invention relates to a for cutting resistant material to be cut, such as cardboard paper, Linoleum, asbestos, rubber or the like. Specific device, the blade of which is safe when the device is not in use Carrying in the bag is secured.

It is already a knife intended for the same purpose with one in a box-shaped, as Handle of the knife serving housing extensible blade known, the cutting edge when not in use of the knife by means of a U-shaped, hinged at the head end of the knife housing, under the Pressure effect of a preloaded coil spring standing cap is covered. This springs when applied of the knife sideways for use, releasing the edge of the blade while it is at If the knife is not in use, it automatically springs back into the safety position. The arrangement of a cover cap does not only lead to an increase in the price of such knives, but also has the consequence that no uneven cuts can be made with the knife. Another such The disadvantage of knives is that they do not contain any packaging boxes that are after can be converted into display or display boxes after emptying by cutting because the knife does not find resistance when it is applied to the empty box, to overcome the spring pressure of the cap to release the blade edge of the knife is required. It is also a pliers-like cutting device has become known, the blade on the movable, spring-loaded leg of the device is arranged and when not in use between the legs of the - having a U-shaped cross-section - fixed leg of the Device is secured. With a cutting device of this type, as a result of the omission of the cover cap Make irregular cuts and empty cardboard boxes for the purpose of converting them into display boxes, for example cut to size. As a result of the pliers-shaped design, however, such cutters are not only relatively expensive to manufacture, but also bulky, which can be carried in a pocket has a detrimental effect. In another known cutting device, which is used in particular for opening cardboard boxes is intended and for this purpose has a support arm with which it is used when cutting supported by the lid of the box, the blade is secured by means of a when not in use Slider which, in cooperation with the support arm, covers the blade. Let such cutters however, with regard to the support arm, only cutting device

Applicant:

Norbert Wietscher, 5650 Solingen, Kölner Str. 65

Named as inventor:

Norbert Wietscher, 5650 Solingen

use to open boxes. The arrangement of a slide also facilitates the production the cutter more expensive. Furthermore, a cutting device is known whose pivotable in a knife handle mounted blade is extended beyond its pivot point to a second blade. With this one Cutting device can only be one blade at a time by swiveling it into the knife handle in the secured position while the other blade is unsecured. The cutting device does not work as a result carry it safely in your pocket.

It is the object of the invention to provide these adhering to the known cutting devices of the type described above Eliminate disadvantages. The solution to the problem is in the case of a cutting device as described at the beginning mentioned type is that the blade of the cutter on one arm of a two-armed, in one Housing pivoted lever is arranged, the other arm of which is exerted on him Pressure of a loading spring in the secured position of the cutting device in the housing so kept in an inclined position is that the spring-loaded arm protrudes partially from the housing and the one carrying the blade Arm with the former in the housing, while the user on the lever against the back pressure pressure exerted by the loading spring pushes the blade out of the housing.

The cutting device according to the invention is much simpler than the known cutting devices under construction and cheaper to manufacture. It can be used to perform both non-linear cuts as well as empty packaging boxes for the purpose of converting them into display or display boxes.

In the drawing, the invention is in two exemplary embodiments illustrated on a cutting device for cutting resistant material to be cut. It shows

809 568/170

Claims (2)

T A b b. 1 the cutting device with the blade swiveled into its housing in view, "" '■■> - · - ■' A b b. 2 in side view, Fig. 3 with the blade swung out of the housing in longitudinal section and ·. Fig. 4 the cutting device in another embodiment of the invention in 'longitudinal section. · The in Fig b. 1 to 3 consists of a U-shaped cross-sectional film having housing 1 and a two-armed lever 2, which is pivotable in the housing 1 about a pin 3 leading in the wall of the housing 1. A blade 5 is fixedly arranged on one arm of the lever 2, namely the arm designated by the reference numeral 4. The other arm of the lever 2, denoted by the reference numeral 6, is under the pressure of a two-legged loading spring 8 which is pushed onto a pin 7 and which is supported with its one leg on the inner wall of the housing 1 and with its other leg on the arm 6 of the lever 2 . The lever 2 is held in an inclined position by the action of the loading spring 8 so that the spring-loaded arm 6 partially protrudes from the housing 1, while the arm 4 with the blade 5 lies in the housing 1 so that the cutting device can be carried safely in the pocket can be. To use the cutting device, the housing 1 and the arm 6 of the lever 2 are spanned with the hand, and the lever 2 is pulled against the action of the loading spring 8, whereby the arm 4 swings out of the housing 1 until the blade 5 in Willingness to cut stands. When the tension on the lever 2 decreases, it swings back into its starting position through the action of the previously tensioned and now relaxing loading spring 8 and swivels its arm 4 back into the housing 1 until the blade 5 is in the secured position . In the cutting device shown in Fig. 4, the arm 6 of the lever 2 has, instead of the loading spring 8, a resilient arm 10 formed by an edge cutout 9, with which the lever 2 bears against the inner wall of the housing 1 and through the the lever 2 in its initial position gewaltgn ^ rrd. The Wn-kweise des Mebels 2 is. "Moreover, the same Λρε! The clgs lever of the cutting device shown in Fig. 1 to" 3. , _,. , V i? * ν bi. ν. Patent claims: 1. Cutting device for cutting resistant material such as cardboard paper, linoleum, Asbestos, rubber or the like, the blade of which is safe when the cutting device is not in use Carrying in the pocket is secured, characterized in that the blade (5) of the cutting device on one arm (4) of a two-armed, pivotable in a housing (1) •., Mounted lever (2) is arranged, the other Ann (6) by pressure exerted on him ' a loading spring (8; 10) in the secured position of the cutter in the housing (1) is held in an inclined position so that the spring-loaded Ann (6) partially protrudes from the housing (1), and the arm (4) carrying the blade (5) lies with the former in the housing (1), while at exerted by the user on the lever (2) against the counter pressure of the loading spring (8; 10) Pressure, the blade (5) emerges from the housing (1). 2. Cutting device according to claim 1, characterized in that that the arm (6) of the lever (2) not carrying the blade (5) has a resilient arm formed by an edge cutout (9) (10) with which the lever (2) is pretensioned on the inner wall of the housing (1) is present. Considered publications: German Patent Specifications No. 1121972, 837;
German utility model No. 1685 874, 912, 1885 827. 1 sheet of drawings 809 568/170 6.68 © Bundesdruckerei Berlin