DE7518312U - Safety device for presses - Google Patents

Description

NORRERT W. SLEMANN

PATENT AND ZIVII. INQENIER

7Jl QO PPI N Qf N

BLUI-iENSTRASU BI TEL 0 7! 61/1 1i 6Ί

OFFICE

711? FISLINO, EN / FILS OSCHWI-G '.o Tf L. O7I61 / H7K Il

/ UGElASSFN IiIM PEUTSC H E N I ΛTt N ΓΛΜ Γ UNP KUNOrS PATENTCE DIRECT

June 5, 1973,

■ j "'.HS) Sw Se / b;

Notifierii:

Hermann Schwelung mechanical engineering

7777

Salem

fiickenbach

Safety device for presses

The innovation relates to a safety device f ^: .ir a ^ from a freßschacht with associated, the Schachteinfüllöfi'aung closing, locked; irera lid and movably guided piston in the shaft existing press, in particular for compacting office waste with a through the ceiling " activated safety contact for press control.

ACCOUNT: KRF.ISSPARKASSE

Ot. 12.75

Such safety devices are on machines or Devices with lockable entry openings in the filling area moving work tools required to avoid injuries or to prevent accidents among the operating personnel.

3o is, for example, from DT-03 23 35 3 ^ 4- for a waste shredding device with rotating knife wheels and one the cover assigned to the slot on the The safety contact on the top of the device is known, which only switches on the machine when the hood is closed, -pressed by this releases.

The disadvantage of this and other known safety devices A similar design and mode of operation is due to the fact that the contacts arranged on the top of the device are on the one hand very slightly damaged, and on the other hand, pressed down by hand, intentionally or unintentionally, despite the hood being open and therefore cannot guarantee absolute security .

The present innovation eliminates these disadvantages through the arrangement of the individual items, which can be seen from the protection claims Components and their functional interaction.

In the drawing is an embodiment of the innovation shown schematically and then described in more detail.

Show it:

Fig. 1 is a side view of a tresse, Fig. 2 is a plan view of Fig. 1 and

3 shows the arrangement of the security elements with the lid closed on an enlarged scale.

7518312 04.1175

The one in Pig. 1 and 2 shown press consists of the press frame 1, which rests on a lower part 2 and the drive raura 3, the press shaft 5> provided with the filling opening 4 as well as its conically widened shaft end 7i which can be closed by a lockable flap 6. The movement de.3 plunger 8 through the shaft 5 takes place via the hydraulic cylinder-piston unit 9, 10 The two cover halves are used to close the filling opening 4 11 and 12, which are guided in hinges 13 and one of which, item 12, carries locking elements 14, 15. On the underside of the cover half 11, a lock rod 17 is movably guided in bearing tabs 16, 20 and over the spring 18, with the lid 11 bi3 open, is preferred for the stop 19 to rest on the spawn 20. At the slightest opening movement ng the cover half 12 is the rod 1? immediately removed from the contact pin 21 of the limit switch 22 and the drive the press shut down.

As Fig. 3 shows, the press can only be operated again when both cover halves 11 and 12 are closed, the switch cam 2? so the rod via its switching curves 24 17 engages in the direction of arrow 2S against pin 21 ·, the elements 17, 21, 22 and 23 lie in a common line of action 26.

The essence of this innovation is therefore to be seen in the fact that, in particular, the shock-sensitive safety contact 21, 22 protected against damage, ^ below the top 2? of Press frame 1 is and the entire system can not be operated with the lid open, so absolutely safe is.

outside the area of the filling opening 4 and

7518312 12/04/75

Claims (3)

Protection claims 1. Safety device for one from a press shaft with assigned, the shaft filling opening closing, lockable cover and piston movably guided in the shaft press, in particular for compression of office waste with one actuated by the lid ^: Safety contact for press control, characterized, that the safety contact (21, 22) and those assigned to it Actuators (17, 23, 2A-) when open Lids (11, 12) are out of engagement and outside the filling opening (A-) of the press chute (5). 2. Safety device according to claim 1, characterized in that that the safety contact ^ 21, 22) below the top (27) de3 Pres3enrahraens (1) arranged and at closed cover (11, 12) by a movably guided switching rod provided with a return spring (18) (17) and a rigid switching cam (23, 24) engaged; is. 3. Safety device according to claims 1 and 2, characterized in that that switch rod (17) and switch cams (23, 2A-) the underside of the two cover halves (11, 12) are arranged and with the safety contact (21, 22) a common line of action (26). 7518312 12/04/75