DE1932465U - BENDERS FOR PIPES, IN PARTICULAR COPPER PIPES. - Google Patents

Description

Utility duty registration:

Alexander BOHL, 563 Bemsche Id-Yleringhausen .

Stockderstrasse 23

Bending pliers for drilling, especially copper pipes.

Bending pliers, in which the drilling without sand filling., A bending segment shaped according to the bending radius is bent and that by means of a sliding segment is deformed are already known »

In the known designs, the sliding segment is attached to a lever, one end of which is in the The center of the segment is rotatably mounted, its fork-shaped end at the same time as the storage for the sliding segment forms · This embodiment is but only usable for drilling up to a certain size and a certain section modulus · For larger ones Drilling has previously had to use a stationary bending device, which is considerably more expensive and too their transport to the construction site special! required are.

The hiring consists in that the sliding segment is rotatably mounted at the end of a toggle lever and the

Knee lever at the other end the pin for the tong tube carries, while the toggle lever is mounted in a tab-like connecting lever rotatably mounted around the center of the bending segment.

The advantage of this design is that when the pliers are pressed together, the sliding segment does not is pushed along slidingly on the drill, but pressed against the drill by turning the toggle lever and so that the drill is bent. The drill is bent piece by piece by touching it up. With this type of bending with relatively low forces, large bending forces and thus it is possible to bend even strong bores easily and effortlessly with bending pliers

The innovation is shown in an exemplary embodiment. Bs shows:

Fig «1 is a plan view of the bending pliers, partially cut and

FIG. 2 shows a section according to ZI-II of FIG. 1.

The semicircular bending segment 1 is semicircular on the circumference 2 so that the drill 3 to be inserted is well supported at all points of its half circumference and therefore retains its circular cross-sectional shape when bending. In the center of the segment there is a bearing bore 4 for the tab-like shaped Biegeiiebei 5, into which the pin 6 is screwed. On the straight rope of the bending segment, the bearing

Bore 4 is a projection 7 formed with a pin 8, onto which the extension tube 9 of the bending pliers is attached. f At the insertion end of the bending segment a bracket 10 \ is attached by means of a hexagon screw 11 »It serves as a counter-holder for the inserted drill hole to be bent. At the other end of the bending lever 5, the toggle lever 15 is rotatably mounted by means of a bearing screw 12, the sliding segment I 15 is rotatably mounted at one end by means of bolt 14, while at the other end a pin 16 is formed at right angles or at right angles to the toggle lever, on which the second extension pipe 1? the bending pliers is attached. A lug 18 is also formed on the toggle lever 13, which strikes the web 19 of the bending lever 5 and thus limits the pivoting of the toggle lever 13. When the two extension tubes 9 and 17 are pressed together, the hatred caused by the bolt spacing 6 to 12 is eliminated by turning the The toggle lever 13 is adjusted and the drill 3 is generally bent around the semicircular recess 2 on the circumference.

Protection claims:

Claims (2)

Protection claims: 1. bending pliers for fiohre, in particular copper pipes, characterized in that at the end of an im A toggle lever (13) is mounted, at one end of which a sliding segment (15) is rotatably attached, while at the other end At the end at right angles or at an angle to the toggle lever (13) there is a pin (16) on which an extension tube (17) the bending pliers can be attached. 2. Bending pliers for drilling according to claim ^ l, characterized in that there is a nose on the toggle lever (13) (18) is formed, which strikes against a web (19) on the bending lever (5) and thereby limits the rotation of the toggle lever (13) *