Cutlery – Perforating or indenting implements
Patent
1993-08-19
1995-02-07
Jones, Eugenia
Cutlery
Perforating or indenting implements
30363, 83167, B26F 136
Patent
active
053866380
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a paper punch with a bottom part having two slits for inserting a sheet to be provided with holes, the upper surface of which is respectively provided with a guide opening and the lower surface respectively with a die opening, and also having a top part hinged on the bottom part which, when pressed downward, presses the punch dies guided in the guide openings into the two die openings against the force of a spring and in the course of this makes holes in the sheet.
It is the object of the present invention to provide a paper punch which is foldable, i.e. which can easily be carried and in the pocket of pants, coats or shirts in the folded-together position.
SUMMARY OF THE INVENTION
A foldable paper punch of this type is distinguished in that the top part and the bottom part are each formed by two struts and that both struts of the bottom part and both struts of the top part can be folded against each other, that the outer ends of the struts of the top part are rotatably hinged on the outer ends of the struts of the bottom part, and that the hinge pins of these hinges are aligned with each other in a folded position of the top part and the bottom part intended for making the holes .
BRIEF DESCRIPTION OF THE DRAWINGS
Advantageous further embodiments of the invention are defined in the dependent claims. An exemplary embodiment of the invention and its advantageous further embodiments will be described in more detail below, making reference to the drawings. Shown are in:
FIG. 1 a top view of a paper punch;
FIG. 2 a bottom view of the paper punch;
FIG. 3 a lateral view in the direction of arrows III--III in FIG. 1;
FIG. 4 a section taken along the line IV--IV in FIG. 1;
FIG. 5 shows the paper punch in the folded-open and working position;
FIG. 6 a view of the paper punch in the same working position as in FIG. 5, but from the opposite side, i.e. from the back in FIG. 5;
FIG. 7 is an enlarged view of some details of the illustration of FIG. 6, particularly of the disk 9 provided on the strut 3;
FIG. 8 is an illustration as in FIG. 7, but after the disk (9) has been removed;
FIG. 9 shows the disk (9);
FIG. 10 shows the disk (9), but from the back;
FIG. 11 shows a clamp (40);
FIG. 12 shows the clamp (40) after having been seated on the connecting point of the struts 2, 3 and fastened on them;
FIG. 13 shows a section taken along the line XIII--XIII in FIG. 12.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIGS. 1 to 3 the paper punch is shown in the folded-up state, in which it can be easily placed into a coat or pants pocket. In the top view (FIG. 1), the two struts 2 and 3 forming the top part 1 are visible; in the view from the bottom (FIG. 2), the two struts 5 and 6 forming the bottom part 4 are visible. The struts 2 and 3 are foldably connected with each other via a rotating connection formed by the screw 7 (FIG. 3). The struts 5 and 6 are foldably connected with each other via a rotating connection formed by the screw 8 (FIG. 2, FIG. 3). This rotatable connection permits a mutual turning of the struts 2, 3 or 5, 6 with respect to each other, but this only to an extent limited to an angle of 90.degree. and in one plane; for this reason the statement is made hereinafter that the struts 2, 3 and 5, 6 can be "folded" against each other. As can be seen in FIG. 3, a further disk 9 is connected with the struts 2 and 3 at the place of the folding connection and is inserted into the strut 3 in such a way that it cannot twist in respect to it, and which is used to fix the struts 2 and 3 in relation to each other in the folded position shown in FIGS. 1 to 3 as well as in the opened position.
Arms 11, which are crimped in a step-shaped manner are disposed on the strut 5--and (in FIG. 3) behind it correspondingly on the strut 6--by means of screws 10. The slits 22 and 22' for inserting a sheet 23 to be punched result between the free ends of the arms 11 and the struts 5 or 6 (see also FIGS. 4, 5, 6). At the outer end of the arms 11 the struts 2 o
REFERENCES:
patent: 803727 (1905-11-01), Tengwall
patent: 961800 (1910-06-01), Rogers
patent: 1146971 (1915-07-01), Stevens
patent: 1567374 (1925-12-01), Keeni
patent: 3087367 (1963-04-01), Semler
patent: 4166404 (1979-09-01), Almog
Heinrich Meyer-Gotz
Jones Eugenia
Schrock Allan M.
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