DE1226454B - Household or tailoring scissors - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

B 26 b

German class: 69-1

Number: 1226 454

File number: S 94904 1 c / 69

Filing date: December 31, 1964

Opening day: October 6, 1966

The invention relates to household or tailoring scissors with one on each scissor blade mechanically produced, cylindrical hollow section, whose base or crown apex in a pointed Angle to the cutting edge from the back of the scissor blade to the edge of the Trade is run.

In the case of the known scissors of this type, the bottom runs over the entire commercial area Hollow grinding on the inner edge of the commercial pool. This is on every scissor blade produces a single, crescent-like elevation. When joining the two Scissor blades compensate for these crescent-like elevations by adding the elevation point on one edge of the scissor basin with the scissor blades spread out on one Relative to the bottom of the hollow section, it is deeper and on the opposite side of the scissor basin arranged elevation point occurs. If the ao scissors are closed from this spread position, so the point of intersection of the cutting edges moves progressively from the vicinity of the commercial bolt pivot point in the direction against the scissor tips and it decreases sufficiently for the spread position set cutting pressure. Only the so-called twist of the blade, i.e. H. the rise of the cutting edge compared to the bottom of the hollow section, brings a balance, as to a certain extent resilient collision of the cutting edges at the intersection or intersection is maintained. The two scissor blades are guided through the commercial areas in parallel, theirs However, relative movement to one another is not a lifting of the scissor pelvis, but in opposite directions Way a lowering of the scissor basin.

This configuration does not achieve an optimal cutting performance of the scissors with easy walking. the Scissor blades must also be cushioned. This is cumbersome, unsafe and limits the cutting pressure, so that the cutting of thick cloths, felts or the like is cumbersome and often at the Cutting point, a clean, smooth cut is not achieved because the blades tilt in the cross direction can, because only a single crescent-shaped, eccentric to the pivot axis of the industrial stud effective increase is present.

The object of the invention is to design a generic pair of scissors so that the above-mentioned disadvantages in particular the transverse tilting and the reduction of the cutting pressure in the area of the tip are avoided are.

Household or tailoring scissors

Applicant:

Hans Sandkaulen, Solingen, Lüneschloßstr. 12th

Named as inventor:
Hans Sandkaulen, Solingen

This is achieved according to the invention in that the base line of the hollow section is the hole for the commercial bolt crosses and the basin of the scissors in the area of the commercial area two symmetrically to the bore, crescent-like elevation that is formed by the hollow ground are separated and step on each other in pairs with the scissors closed, causing the one scissor blade is effected against the other in the longitudinal direction of the scissors.

As a result of this configuration, a pair of scissors is created with a simple design, which is optimal Cutting performance achieved with easy gear. The cutting point can also be used for a smoother, cleaner Achieve cut. Due to the peculiar laying of the hollow ground, crossing to the commercial bolt two crescent-like elevations are created on each scissor blade that are in the closed position the scissors step on each other and thus a room-parallel lifting of the scissor basins against each other in the area of commercial space. Because the two crescent-like elevations lie on this side of the transverse median plane of the trade, this stroke causes those on the other side of the transverse median plane of the trade lying scissor blades experience a tilting movement directed towards the tip of the scissors, without a movement directed transversely thereto Tilting movement of the sheet would occur. The cutting edges on whose exact guidance it is Most importantly, the further the closing of the scissors progresses, the more you get an increasing one Pressure. The latter causes an easy and clean cut at the tip of the scissors because of a splay the cutting edge is suppressed.

609 66904

According to the invention, an advantageous embodiment consists in that, in a known manner, the in one of the scissors blade in the hole of the trade stuck trade bolts with a ball head stored in a spherical seat of the other scissor blade.

In the drawing the invention is in an exemplary manner Form of training shown It shows

A b b. 1 shows a side view of tailor's scissors designed according to the invention in the open blade position,

A b b. 2 their lower sheet and

A b b. 3 the upper sheet of which in a view against the inner surface, indicating the hollow section,

A b b. 4 is a longitudinal view of A b b. 1,

A b b. 5 shows a corresponding longitudinal view with the scissor blades in the closed position;

Fig. 6 on an enlarged scale a section through the trade according to line AB in A b b. 5,

Fig. 7 shows a corresponding section along line CD in A b b. 4 and

A b b. 8 shows a section FF in A b b. 5.

The scissor blades 2 and 3, which are hingedly connected by the commercial bolt 1, have, as in A b b. 2 and FIG. 3 schematically illustrates a hollow section on their inner surfaces 4, 5, which also extends over the entire commercial space of the scissor pools 6, 7 extends.

The line χ formed by the bottom of the hollow section runs in such a way that it crosses the bores 8, 9 for the shank 10 of the commercial bolt 1.

The commercial bolt has a spherical seat 11 forming head for the A spherical shell-shaped seat 12 is provided on the outside of the scissor basin 7. The shaft 10 is with "Provided a thread which freely penetrates the bore 9 of the upper scissor basin 7 and into the threaded hole 8 of the scissor recess 6 is screwed. The lock nut 13 secures the commercial bolt.

The hollow grinding that runs through the commercial areas forms on the scissor blade edges in the area of the trade similar to the crescents known per se, elevations 14.15 and 16.17, respectively are separated by the hollow ground.

If the scissors are in the spread position of the leaves, the kick. Elevations 15.16 in the base of the hollow ground. the opposite commercial area (Fig. 7). If, on the other hand, the scissors are closed, the elevations 14, 15 slide onto the elevations 16, 17 by virtue of the rising hollow ground surfaces, which results in a stroke y .

This parallel lifting of the basin by the distance y into the position shown in Ab b.

As a result, the contact pressure of the cutting edges is continuously increased at their contact point, so that when cutting with the tip, despite the increasing lever length of the blade, still a clean, smooth cut is achieved.

When opening the scissors slide in the opposite direction, the elevations 14,15,16,17 from each other so that in the spread position corresponding to the hand span (Fig. 1) the set for this Position of the scissor blades optimal cutting pressure is achieved again.

Claims (2)

Patent claims: 1. Household or tailor's scissors with a mechanically generated, cylindrical hollow ground on each scissor blade, the base or arching apex of which is guided at an acute angle to the cutting edge from the back of the scissor blade to the edge of the trade opposite the back, characterized in that the base line (x ) of the hollow section crosses the hole (8 or 9) for the commercial bolt (1) and the basin of the scissors in the area of the commercial area forms two crescent-like elevations (14, 15 or 16, 17) that are symmetrical to the hole and that are through the hollow ground are separated and step on each other in pairs with the scissors closed, causing one scissor blade to tilt against the other in the longitudinal direction of the scissors. 2. Scissors according to claim 1, characterized in that in a known manner in the a scissor blade (6) in the hole (8) of the trade with stuck trade bolts (1) a spherical head (1) in a spherical shell-shaped seat (12) of the other scissor blade (7) stores. Considered publications:
German Patent Nos. 948 673, 954 486 ;. U.S. Patent Nos. 1,886,271, 1886,273. 1 sheet of drawings