DE4004267A1 - COMBINED PUNCHING AND DRAWING TOOL - Google Patents

Description

The present invention relates to the Oberbe gripped the main claim to a device for one bring the flow openings into primarily metallic Gutters in the area of the so-called hanging supports locking vertical drain pipes.  

So far, these flow openings have been introduced exclusively with chisels, hammer and tin snips by hand, which is not only very time consuming, but too is also qualitatively inadequate.

The object of the present invention is therefore for creating flawlessly cut and down slightly extended or rounded through river openings in the gutters a corresponding work create stuff that both operations in as possible a train.

This task is solved by the in the patent claims Chen specified features and alternative design Possibilities that are also largely in the drawings represented schematically and based on these representations are described in more detail below. It show in detail

Fig. 1 shows the device according to the invention in longitudinal section and

Fig. 2 shows an alternative to Fig. 1, also in longitudinal section and rotated by 90 ° in the plane.

The punch shown in Figure 1 consists of the O-shaped frame 1 , on the upper part 1 a, a guide bush 1 c for the shaft 3 a of the punch 3 is introduced; This stamp 3 is moved by means of the hand lever 2 , which is articulated on a bracket 2 a of the upper part 1 a of a pivot pin 2 b and attacks via two further pivot bolts 2 c and a tab 2 d at the free end of the stamp shaft 3 a.

In addition to the actual cutting ring 3 b, the cutting punch 3 is laterally extended to a drawing tool 4 , which only comes into effect or is used when the cutting punch 3 , 3 a after perforating the respective gutter "D" again emerges from the die 5 .

According to the full-line illustration in FIG. 1 of the channel material in the region of the Lo is chung downward pull-out, the counter-holder 6 ramped up to the free end of the cradle axis 7 a pivotable adjusting lever 7 seated rotatable eccentric 8 in the direction of arrow P ₁ by means of and the drawing part 4 of the stamp 3 , 3 a in the previously punched hole in the roof gutter "D" pressed. According to the dash-dotted variant indicated in the same figure, the combined component 3 , 5 can also be mounted as a whole pivotable about an axis 9 in the lower frame part 1 b.

Ultimately, it is also conceivable, as shown in Fig. 2, die 5 'including ejection opening 5 a' and the counter-holder 6 'as separate components next to each other on a sliding carriage 10 and alternately punch according to arrow P ₂ against the stops 11 in the positions or pull. All of the work or operating processes that are manually initiated here, of course, can also be carried out hydraulically or by machine.

Ultimately, it should also be mentioned that the entire unit 1 to 7 is formed as a stationary or mobile tool, ie it can also be perforated subsequently on gutters that have already been installed.

List of reference numbers

1 frame
1 a top
1 b lower part
1 c guide bush
2 operating levers
2 a console
2 b swivel axis
2 c articulation point
2 d tab
3 cut stamps
3 a shaft
3 b cutting ring
4 drawing tool
5 die
5 'the same in Fig. 2nd
5 a ejection opening
5 a 'and the like in Fig. 2nd
6 counterholders
6 'the same in Fig. 2nd
7 adjustment lever
7 a swivel axis
8 eccentrics
9 axis
10 sledges
11 stop
D gutter
P₁ height adjustment
P₂ linear displacement
P₃ pivoting

Claims (8)

1. Device for introducing the flow openings in before metallic roof gutters in the area of the so-called hanging spigot, mostly vertika len drain pipes, characterized in that the device comprises a frame ( 1 ) and operating lever ( 2 ) for punches ( 3 ) and Die ( 5 ) is formed punch. 2. Device according to claim 1, characterized in that the stamp ( 3 ) is simultaneously designed as a drawing tool ( 4 ) and the die ( 5 ) is assigned a counter-holder ( 6 ) for the drawing tool ( 4 ). 3. Device according to claims 1 and 2, characterized in that the operating lever ( 2 ) is ausgebil det as a hand lever and the combined cutting and drawing tools ( 3 to 6 ) are mounted in a C-shaped frame ( 1 ). 4. Device according to claims 1 to 3, characterized by the following Vari anten of training or mutual assignment of the die ( 5 ) and counter-holder ( 6 ) to the combined cutting / drawing punch ( 3 , 4 ). 4.1 The counter-holder ( 6 ) concentrically surrounds the die ( 5 ) and is height-adjustable, for example, via a lever ( 7 ) articulated on the frame ( 1 ) by means of an eccentric ( 8 ) (P ₁ in Fig. 1). 4.2 die ( 5 ) and counter-holder ( 6 ) are arranged side by side or one behind the other as well as horizontally displaceable (P ₂ ) on the lower frame part ( 1 b) ( Fig. 2). 4.3 die ( 5 ) and counter-holder ( 6 ) are diametrically opposite one another and are mounted as a swivel unit in the frame ( 1 ) or its lower part ( 1 b) (dash-dotted representation in Fig. 1). 5. The device according to at least one of the preceding claims, characterized in that the entire unit ( 1 to 7 ) is designed as a stationary or mobile tool.