DE1197055B - Stapling tool - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

B 42b

German class: 11 a-Il

Number: 1197055

File number: B 66483 VII b / 11 a

Filing date: March 22, 1962

Opening day: July 22, 1965

The subject matter of the invention is essentially about further structural improvements of staples, especially for the purpose of connecting box flaps are equipped with a spring-loaded clamp slide.

It has already become known, staple staplers with a spring-loaded staple slider equipped with a slot that penetrates the staple channel in side slits to train guided and acting on the tension spring handle bar in such a way that one over the staple guide stores a plurality of stacked staple strips and thereby the entire staple strip loaded with the aid of a spring in the direction of the staple guide while the clip slide can be pushed back into its releasing position. This known state of Technology that is more or less mainly based on multiple stocks of preformed or staple strips still to be deformed from staplers with reloading magazines It is by no means the special design of the guide slots for the handle bar, which in the essential just the subject of the invention is directed. The object on which the invention is based consists in being able to move the clamp slide into its loading position without doing so having to counteract the tension spring in the slightest. According to the invention, this is now done in the Way that the clip slider is connected to the handle bar opposite to the one end of the spring, while the other end of the spring engages in a hook located on the handle bar. To this end the tension spring is guided over guides (guide rollers) of different diameters, which are attached to the outer Ends of the clip channel are attached and allow a crossed course of the spring. In the side walls of the lower part of the stapler are recessed main slots, in which the handle bar is displaceable can be guided, run upwards in slots with locking lugs that of the definition serve for the working and loading position of the device.

It is readily apparent that the characteristics of the invention are of a purely constructive nature with the aim of being able to reload the stapler at any time without doing it to counteract the tensile force of the spring. In contrast to the known, can therefore relatively strong spring tensions can be applied to the staples without Stapling tool

Applicant:

Bostitch, Inc., East Greenwich, R. I. (V. St. A.)

Representative:

Dr.-Ing. H. Ruschke, patent attorney,

Berlin 33, Auguste-Viktoria-Str. 65

Named as inventor:

Howard George Allen, Cranston, R. I. (V. St. A.)

Claimed priority:

V. St. v. America June 21, 1961 (118 682)

that special efforts are required once the stapling mechanism needs readjustment should make it necessary or the clamp slide removed in the event of a new loading would have to be.

An exemplary embodiment of the invention is described below with reference to the drawings.

Fig. 1 shows a side view of the invention Staple;

FIG. 2 is one taken along line 2-2 of FIG. 1 Section and shows the staple magazine in the filled state;

F i g. 3 and 4 are sections along line 3-3 of FIG. 1 and along line 4-4 of FIG. 2;

F i g. Figure 5 is a side sectional view with the magazine feeder retracted is;

Fig. 6 is a partial section of Fig. 5 showing the Shows slide in depressed position during loading of the magazine, and finally shows

7 shows the magazine in perspective.

The stapler consists essentially of a frame 20 with upper and lower parts 22, 26. In the upper part, a handle 24 is provided in which a pneumatic drive for the staples is accommodated, while the staple magazine with the required feed is located in the lower part. The pneumatic drive, in FIG. 1 shown in dashed lines, it expediently consists of. a cylinder 30 with a piston displaceable therein

509 627 / 4-

3 4

28, which by means of compressed air (inlet pipe 32 and valve) can run loosely over their guide rollers 70, 72 at any time 34) by means of a control lever 36 and a stopper. The handle ice is in the loading position 38 can be operated. The piston works web 58 after a forward displacement and up with a blade-shaped staple driver moving upwardly along guide slots 62 in FIG together that after completion of the working stroke 5 of the locking position 80, in which he is through a be returned by a coil spring 42. forward pressure of the spring 68 held

The staple magazine has a guide (see FIG. 5 in this regard). At the same time the clamp splint is 50, which at the bottom of the lower part 26 support slider 52 out of the guide rail is raised over its entire length to insert a new set of staples 76 and U-shaped bent brackets. To be able to put the io. Once this has happened (see also for the magazine consists of an example F i g. 6) is done by unlocking the U-shaped slide 52, which the Füh- grip web 58 (downward movement from its end rail appropriately encompassed, sliding on it position 80) a fitting of the clip slide 52 able and with an upwardly directed hook on the guide rail 50. Subsequently shaped projection 54 is provided, which is in a 15 the handle bar again in the in the F i g. 1 to 4 Pin 56 expires, in which a spring is hooked, brought working position shown, in which, according to a which will have to be dealt with in more detail. Longitudinal displacement in the slots 62 on

The essential feature of the device is that the spring 68 has been extended and that the staple slider 52 presses against the staple set 76 on a slider 52, the handle 58, 60 of the web-like design is attached and _it has staples 20 Tj, as is easy to see runs in slots, which are in the side walls of the lower, opposite to all previously known Konteils 26 are embedded. Two essential advantages of the bridge 60 of the structure. These knobs 64, 66 provided in the handle 58 essentially enable convenient operation at all times due to the new device. The handle bar is like the subject of the invention is relatively strong now connected to the clip slide 52 by a tension spring 68 exerted on the staples, one of which can be connected to the pin 56 of the clip slide on the part of the user without it being attached to the pin 56 of the clip slide of such a device special effort and from there in the direction of the handle bar about a need, for example, the stapling mechanism guide roller 70 is guided, while they, adjusting or cutting the slide in preparation, remove in the opposite direction via a 30 for a reloading of the device second guide roller 72 runs back, which must in the rear part. At the moment of the displacement movement of the magazine housing is arranged, and from there on the handle bar 58 when the clip is removed again in the direction of the handle bar, where the slide from its working position are finally located with their other "end in a spring ends on the bar in a relative fixed position to each other, the hanger is attached. In order to be able to have an unchanged setting to one another without difficulty during this "cross-over run" of the tension spring 68, the guide rollers Guide rollers 70, 72 and does not suffer any additional. borne stress in such a

The operation of the stapler, both 40 sliding movement of the handle bar. Is a new sentence

in addition to its loading as well as the staples being introduced, the handle web is after

giving work process, may now move forward in the following. He takes the slide 52 so

more to be explained in more detail. Here, the far with, until this with the staple set 76 to

F i g. i to 4 a stapler with a full loading system comes. Really should during this time

tem magazine, in which the handle bar 58 is in 45 times an unintentional release of the handle bar

its foremost position. In this admission, it is based on the proposed

the crossbar 60 is in a position where the slide has no way to measure

in which the guides embedded in the lower part 26 are to be placed against the set of staples 76 and

Rungsschlitze 62 straight your upward and thereby destroy one or more staples

have reached the backward bent end 78. 50 or even jamming the device.

Feed the clamps running on the guide rail 50. If in the further course of the operation

Slider 52 is thereby from the tensioned tension spring voltage of the handle web 58 finally in its front

68 pressed against the set of staples 76. How moved out of the locked position, so it results

the F i g. 4 can be easily removed, a spatial distance of the handle

when removing the staples, the slider moves a 55 bar from the staple slider, whereby the required

Shift to the left, d. H. towards the handle bar, the pressure against the staples is now applied

drive until all clamps are taken over by the spring tension. Since in

are used up. generally there is a requirement that the spring in

Should the magazine now be almost twice as long as it is in the unstretched state again after it has been used are filled, then the grip web 58 must close-locked out of its 60, the guide slots 62 and accordingly Position can be pushed out. It is twice as long as the greatest length of the clamp he can be at the same time the clip slide 52, mermagazins, the possibility arises so that without difficulty a suspension of the use of an unusually long clamping crossbar 60 on the hook-shaped projection 54 of the spring, which closes the staples in the operating position Slide is possible. Can hold during the magazine 65 and during the filling with the When filling, there are no burdensome amounts of staples on the sliding tensions on the handle bar on, since the ends of the tension spring 68 relative to the force exerted is even more uniform than before tiv are immovable to each other and the spring itself was possible.

Claims (4)

Patent claims: 1. Staples, especially for connecting box flaps, with a The staple slide is under tension and pushes the staples through the staple channel and one that traverses the clamp channel and is guided in slots in the side walls and handle bar attached to the spring, characterized in that the clip slide (52) with the handle bar (58) opposite end (56) of the spring (68) is in communication and guides in the clamp channel different diameters (guide rollers 70 and 72) are provided for the spring while the main slots (62) terminate in slots with locking tabs (78, 80). 2. staple binder according to claim 1, characterized in that the slots with locking lugs (78, 80) are directed upwards and the locking lugs for the front working position or run backwards or forwards for the rear loading position. 3. staple binder according to claim 1 or 2, characterized in that the handle web (58) consists of a slidable transverse connection (60) with buttons (64, 66) provided at their ends. 4. staple binder according to claim 1, 2 or 3, characterized in that the guide rollers with different diameters (70, 72) run parallel to each other, but in different Layers are arranged. Considered publications:
German publication No. 1070138. 1 sheet of drawings 509 627/4 7.65 © Bundesdruckerei Berlin