DE451875C - Forceps-like device for pulling in ribbon-shaped ear tags - Google Patents

Description

The invention relates to a device for drawing in bow-shaped ear tags for the animal identification. The new device works by means of a spring force or a shot action moving punch or striking link, in contrast to the ones for the same Purpose previously used pliers (see. Patent 390109) with handle lever o Hand had to be moved every time the ear tag was pulled in. With these well-known Forceps the forceps mouth is set up so that after closing and riveting the ear tag an immediate spring back of the press jaw takes place. On this same or one The training of the pincer mouth in the device is based on a similar principle the invention. The only link to be operated by hand when pulling in the ear tag is in the subject matter of the invention a finger trigger, through which the above-mentioned firing pin is triggered.

An exemplary embodiment of the subject matter of the invention is shown in the drawing.

Fig. Ι shows the side view partially in section.

Fig. 1 a shows a closed ear tag.

Fig. 2 is an end view.

Figure 3 is a top sectional view of the firing pin barrel and that of the Firing pin shank surrounded by a spring.

The device as a whole has the shape of a handgun, the handle α being grasped with the hand and the trigger i being moved with the finger. With / is a backup

Lever for the trigger i referred to, which is in the safety position according to Fig. ι. The mouth, in which the band-shaped ear tag is to be inserted, has a fixed anvil jaw u at the bottom and the press jaw v, which is movable in the hinge and striving for the open position, between which two jaws the ear tag, which is initially open, is to be inserted. The firing pin s is z. B. guided in a tube r. The head part ίο is specially designed, namely behind its frontal cam c there is a circular arc recess b, into which the front end η of the press jaw ν can swing backwards when the firing pin head c assumes the low position shown in dotted lines in Fig. The shaft belonging to the firing pin s ^{is denoted by s 1} , and the spring influencing it is denoted by f. A allows to be moved Vorholexzenter e from the outside by means of the handle knob w (Fig. 2) when it is rotated in the arrow direction (90 ^0), the press jaw ν preparation, in an extreme low position to bring in their Riickwärtsfederung is turned off. Only then is it possible to tension the firing pin s from its low position (shown in dotted lines) against the action of the spring f ; this tensioning and pulling is expediently done with a crank or a T-handle A, which is to be attached to the pinion shaft ζ (Fig. 2), and with the mediation of a gear transmission z ¹ , z ^% , which engages on a rack part s ^{2 of} the firing pin s. In connection with the gear z ^z , a locking gear ring fi is attached in the manner of a clock spring mechanism, in which the pawl bolt q , which can be moved with the trigger i, engages. The spring f can be re-tensioned or regulated in its tension by means of a screw device at the upper end of the guide tube r, which encloses the firing pin s.

The handling of the device for the purpose of pulling in an ear tag on the animal's ear is as follows, the firing pin s being assumed as above in its relaxed position below. First, as a preparatory step, the return eccentric e on the button w is turned to the left in order to bring the cam η of the press jaw υ forward and to let the cam c of the firing pin s pass it. Then by applying the toggle k, the spring f is tensioned while catching the firing pin c and afterwards the trigger i is secured by means of the bolt j (Fig. 1) Now the eccentric e is turned back into the initial position so that the jaw υ also goes back and moves with it their cam η upstream of the head c of the firing pin. Only now is the open ear tag inserted into the mouth opening. In this state the device is ready for use.

As soon as the trigger i is pressed and the pawl bolt q emerges from the ratchet, the gear z ^{2 is} also free, and the force of the firing pin spring f can develop, which was previously held taut ^{by means of the toothing s 2.} Then the firing pin strikes against the cam η of the press jaw υ and closes the inserted mark. When the press jaw is at its lowest level, cam c slides past cam η , and the latter slides into recess b of the firing pin head as a result of the tension of the spring. This will release the mark again.

The arrangement of the striking link in the form of a firing pin with a rack guide is not absolutely necessary for the implementation of the invention; it can also be a vibrating one Beater link or one with a knee joint connection in the manner of a self-loading lock be applied.

Instead of allowing the device described to act by spring force, a Shot effect by loading powder or by igniting cartridges, similar to in the devices used for stunning slaughtered animals.

Claims (4)

Patent claims: 1. Pliers-like device for pulling in band-shaped ear tags, marked by a force acting with a spring tension or propelled by powder loading Striker for closing the movable press jaw. 2. Apparatus according to claim 1, characterized in that the firing pin (s), the head of which in the end position of the crimping jaw apex passing head has an arcuate recess (δ) into which the press jaw (υ) under spring action can swing backwards. 3. Apparatus according to claim 1, characterized in that the pliers housing with a pistol grip and seated on it, lockable by a known fuse Fingerprint is provided. 4. Apparatus according to claim 1 and 2, characterized in that the voltage the spring influencing the firing pin is a rack and pinion gear with ratchet lock is used, whereby the elevator by means of an attachable key, toggle or the like. Enabled is. 1 sheet of drawings.