DE1502904C

DE1502904C - Hand lever scissors with a swiveling strap connected between their ends to the scissor carriage

Info

Publication number: DE1502904C
Authority: DE
Inventors: Emil 5820 Gevelsberg; Altenhein Helmut 5828 Ennepetal Funke
Original assignee: Fa. Paul Ferd. Peddinghaus, 5820 Gevelsberg
Publication date: 1972-08-10

Description

gewünscht, durch geeignete Mittel feststellbar ist. Diese Stange ragt mit ihren beiden Enden in ihrer Gebrauchsstellung seitlich über die Laschen 3, 4 hinaus und bildet dort bei 34 und 35 je ein Widerlager für das eine Ende einer Feder 36. Das zweite Federwiderlager wird durch eine Buchse 37 gebildet, deren Innenwand 38 eine Schulter 39 aufweist, an die sich eine Bohrung 40 anschließt. Durch diese Bohrung kann eine Mutter 41 mit einem Innenmehrkant 42 gesteckt werden, so daß der Gewindekopf 43 auf der Schulter 39 der Buchse aufliegt und der Gewindeteil in den Gewindeteil der Bohrung 31 des Zapfens 9 eingeschraubt werden kann.desired, can be determined by suitable means. This rod protrudes with both ends in hers Position of use laterally beyond the tabs 3, 4 and forms an abutment there at 34 and 35 each for one end of a spring 36. The second spring abutment is formed by a bush 37, whose Inner wall 38 has a shoulder 39 to which a bore 40 adjoins. Through this hole a nut 41 can be inserted with a polygonal socket 42 so that the threaded head 43 on the Shoulder 39 of the socket rests and the threaded part in the threaded part of the bore 31 of the pin 9 can be screwed in.

Die eine Stirnseite der Buchse 37 trägt eine Verzahnung 44, die der Verzahnung 28 der Laschen 3 oder 4 entspricht.One end face of the bush 37 carries a toothing 44, that of the toothing 28 of the tabs 3 or 4 equals.

Das der verzahnten Stirnseite abgewandte Ende der Buchse 37 trägt zwei sich gegenüberliegende Schlitze 45, 46, durch die das Ende 47 der Feder 36 gesteckt werden kann, wodurch die Buchse 37 das zweite Widerlager der Feder 36 bildet.The end of the socket 37 facing away from the toothed end face carries two opposite ends Slots 45, 46 through which the end 47 of the spring 36 can be inserted, whereby the socket 37 the second abutment of the spring 36 forms.

Soll die Spannung der Feder 36 geändert werden, so bewegt man die Stange 33 in die entsprechende Längsrichtung, so daß das Ende 48 der Feder 36 freigegeben wird und hiernach die Feder von der Buchse 37 leicht abgenommen werden kann. Mittels eines Mehrkantschlüssels wird die Schraube 41 so weit gelöst werden, daß die Zähne der Verzahnung 48 von den. Zähnen der Verzahnung 28 freikommen, hiernach wird die Buchse 37 gedreht und nach Festziehen der Schraube 41 die Feder wieder in ihre Lage gebracht und die Stange 33 so weit verschoben, daß nunmehr der gleiche Nachspannvorgang auch bei der zweiten Feder vorgenommen werden kann. Man kann das mit der Buchse 37 zusammenwirkende Ende der Feder 36 auch kürzer gestalten und die Buchse größer halten, so daß das Federende nicht in die Bohrung 50 der Buchse hineinragt. In einem solchen, wie in F i g. 2 dargestellten Fall wird die Buchse 51 an ihrem Umfang U mehrkantig ausgebildet, damit dort mit einem entsprechendenIf the tension of the spring 36 is to be changed, the rod 33 is moved in the corresponding longitudinal direction so that the end 48 of the spring 36 is released and the spring can then be easily removed from the socket 37. By means of a polygon wrench, the screw 41 will be loosened so far that the teeth of the toothing 48 of the. Teeth of the toothing 28 come free, then the bush 37 is rotated and, after tightening the screw 41, the spring is brought back into its position and the rod 33 is moved so far that the same re-tensioning process can now also be carried out on the second spring. The end of the spring 36 cooperating with the bushing 37 can also be made shorter and the bushing can be kept larger so that the end of the spring does not protrude into the bore 50 of the bushing. In such a way as in FIG. 2, the socket 51 is formed polygonal on its circumference U so that there is a corresponding

ίο Schlüssel angegriffen werden kann. Das Federende 53 wird von einem Schlitz 54 aufgenommen. Man kann auch noch weitere Schlitze 55 vorsehen, so daß man das Federende 53 wahlweise in eine der Ausnehmungen 54 und 55 einlegen kann. Legt man einen entsprechenden Schlüssel an den Umfang U der Buchse 51 an und hält diesen Schlüssel gegen den Federdruck fest, so kann man die Schraube 41 lösen und mit Hilfe des an dem Umfang der Buchse angreifenden Schlüssels die Buchse 51 verstellen und die Federspannung ändern, ohne daß hierbei die Feder 36 zu lösen ist. Statt des vierkantigen Umfanges der Buchse 51 kann man auch bei runder Ausführung der Buchse mit einem geeigneten Werkzeug in einen freien Schlitz 54, 55 fahren und hier- -durch die Buchse bei gelöster Schraube 41 gegen den Federdruck halten und in gewünschter Weise verstellen. Hat man die Verstellung vorgenommen, _zieht man wiederum, ohne daß die Feder 36 abgenommen worden wäre, die Buchse 51 wieder fest.ίο key can be attacked. The spring end 53 is received in a slot 54. Further slots 55 can also be provided so that the spring end 53 can optionally be inserted into one of the recesses 54 and 55. If you put a corresponding key on the circumference U of the socket 51 and hold this key against the spring pressure, you can loosen the screw 41 and adjust the socket 51 with the help of the key acting on the circumference of the socket and change the spring tension without that here the spring 36 is to be solved. Instead of the square circumference of the socket 51, a suitable tool can also be used with a suitable tool to drive the socket into a free slot 54, 55 and thereby hold the socket against the spring pressure when the screw 41 is loosened and adjust it as desired. Once the adjustment has been made, the bush 51 is tightened again without the spring 36 having been removed.

30:'' Die Schlitze 54, 55 können auch asymmetrisch •angeordnet sein, z.B. seitlich neben der Bohrung50 -der Buchse verlaufen.30: '' The slots 54, 55 can also be asymmetrical • be arranged, e.g. on the side next to the hole50 - run the socket.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 only in order to avoid accidents, but also in order to with patent claims:: partially lowered hand lever to have both hands free in order to be able to align the material to be cut.

1. Lever shears with a between., Their · This is one of the decisive factors Ends connected to the scissors slide, 5 on it, which preload a new Schenam Scissor frame pivoting bracket, given on kelfeder or both new leg springs one end of which is one with its gearing in. Because the spring or springs are a fatigue plate For this reason, too, the tooth segment on the shear frame is subject to interference the manual adjustment of the spring tension required under the action of a spring by a non-rotatable on the tab io Hch.

fixed pin is pivotably mounted, on this is an embodiment of the hand lever

the one with its one end against the hand scissors according to the main patent that on the two weight-forming single straps which are provided with a lever, with their other end against a counter-thread, over which the double strap bearing on the pin rests the same length Leg spring is arranged, which can be screwed on as 15 ends each with a threaded bushing. one end face with a receiving slot for this has incisions on its free end face, the one spring end provided and rotatably with the one end of the leg spring connected to the hand lever sleeve can be inserted such that the sleeve is an abutment, according to patent 1272 084, this forms the leg spring. The socket is here firmly characterized by the fact that the socket (37, 51) is screwed at its 20 against its corresponding tab, so that the pivotable tab (3, 4) facing the end face it is held in a rotationally fixed manner with respect to this tab.
is provided with a toothing (44), which engages in a, The invention is the task of improving the corresponding toothing (28) of the pivotable, 7,: This embodiment of the hand lever scissors after tab (3, 4) and by means of one in the main patent is based on, in particular the screw (41) located in the longitudinal axis towards the socket - * Γ "view of a secure, non-rotatable connection that the bracket is pressed. ■ Socket with the bracket and a simple and

2. Hand lever shears according to claim I, thereby time-saving setting of the socket,
characterized in that the screw (41) is partially in which the socket has a screw head (43) facing the tab. 'i the front side is provided with a toothing, which in

3. Hand lever shears according to claim 2, characterized "" a corresponding toothing of the pivotable characterized in that the one spring end (53) engages deT-_ "tab and by means of one in the bushing type is designed that it is the Buchseninnenboh- ^ longitudinal axis located screw against the bracket ying (50) free. .35 is pressed.

4. Hand lever shears according to claim I and 2, In the practical embodiment, the characterized in that the socket ■ screw partially into the socket interior, the circumference (U) is polygonal or the socket inner wall has an annular shoulder for the screw socket slots, Has notches (54, 55) or the like to the benkopf.

Turning the bushing with the weight balance under tension same leg spring wears. . the invention is one end of the spring so designed

forms that it exposes the inner socket bore. leaves. The circumference of the socket can also be polygonal his or the socket slots, notches or the like 45 for rotating the socket when the weight is tensioned

The main patent concerns a hand lever scissors with a compensating torsion spring,
one between their ends with the scissors carriage In the drawing, an embodiment of the

connected pivotable bracket, shown at one of the invention, namely shows
End one with its teeth in a toothed segment Fig. 1 is a section through the bearing part of the

on the scissor frame engaging and spring-loaded 5 "hand lever with two legs and springs
effect standing hand lever around a non-twisting Fig. 2 a modified embodiment of the

bar fixed on the tab pivot pivotable spring and the bushing.

is mounted, on which one end of the pivoting bracket of the scissors is as a double

against the hand lever, formed with its other end tab and consists of parts 3, 4, 55 resting against an abutment on the pin between the teeth, which are not shown Dedication compensating torsion spring is arranged, supporting part 27 of the hand lever 7 protrudes. The two that as a front end with an Aufiiiihincschlitz tab parts 3, 4 are around a pin on the scissors for the one spring end provided and rotatably pivotable frame. The lever 7 in turn is over with the socket connected to the dome hand lever, the pin 9, which is pivoted in the lugs 3, 4 is. This leg spring can be mounted on the other end 60. .

the Uehclschwenkachse a second leg spring m- Each of the tabs 3, 4 carries on its outside

be ordered. an annular toothing 28 and one to this

The through the object of the main palent to toothing concentric bore 29. Coaxial with The solution to the problem is essentially one of the bores 29 in the pin 9 of both forehead Ilandhubclschuru to create, in which the lever 65 is provided on each side 30 of a threaded hole 31, in each of its possible pivoting positions, the part 27 of the lever 7 has a bore 32,

hard, without it being used by the operator to receive a rod 33 that needs to be supported in Richuntcr. This does not happen direction of the double arrow P and, if