DE1680384U - SPRING SCREW LOCKING ON CLAMPS, IN PARTICULAR ROW CLAMPS. - Google Patents

Description

BBC 2A28B11W15.54

BROWN, BOVERI & CiI Mannheim, 8 May 1954

Corporation

MANNHEIM

Pat.Ze / Hth
lfo.-5fr. 557/54

Leather screw locking on inhibitors, in particular

Terminal clips

With all terminal connections, great importance is attached to that the screws of the connection terminal look after tightening do not loosen through external influences »A large! part of the" known safety measures follows the purpose Self-locking to see the screws. But this has the disadvantage that at a certain torque a ieil this Torque lost due to greater or lesser friction goes. Arrangements are also known in which the screws on the screw heads are secured by locking plates and the like be secured.

For securing against unintentional loosening of screws, safety springs have already been used, the cranks of which engage in the hats of the screw head. However, these known safety arrangements have the caution that either the leather path closes . short fc2m. the spring characteristic is too steep or the securing springs, which are weak in themselves, can get into the area of the veraubenzSier tightening the locking screw, which leads to. Deformation or damage to the locking spring can result, so that the screw lock becomes ineffective.

The increase in price refers to a screw lock under "= twisting of a spring to secure the clamping screw of inhibitors, in particular clamps against unintentional twisting. According to the increase in price, the attaching parts adhering to the previous resilient exterior locking devices are largely eliminated * that the one zusätaliehen rope is covered Hemmsehraube the locking against Yerdrehung Each toh either ropes or the JELemmesträgers.

You anoTÜmnig can be made here in such a way that a = hurry lying in two planes with its upper feil ± &

one Eille of the llemmsehraube is rotatably mounted, with offsets their lower leg ends in hats of a grooved rope the Elemmsehraube engages and from the screw head and from lateral depressions of the 2Q. clamp body is covered «

Another training option for! Inflation can consist of that a bast spring iron encompasses a U-shaped element and covered ", with the detent spring and the sheet metal part in the lateral depressions find their hold. It is also conceivable that a compression spring covering this Seheibe presses against the screw head and this Seheibe in! Tuten the screw head has engagement cams

In the drawing, in Figs. 1 to 6, there are several designs. Examples of the new features for terminal blocks are shown ο

With the terminal block according to Fig. 1 and 2 are in the ELemmenträger 1 a busbar 2, a KLeimnenkäestand 3 pushed onto this and a Elemmsehraube cooperating with this 4 arranged.

The clamping screw 4 has a hat en 5 (Fig-, 2) provided 31 part β ο between this grooved cable -6 and the screw head 7 is a groove 8, in this groove 8 the curved upper part 9 of a safety spring Io is arranged . BIe two leg ends 11, 12 of this securing spring Io lying somewhat below the arched file 9 each have a connection 13 or 14 which engage in the hats 5 of the grooved rope 6 of the screw 4.

The safety spring Io is both, from the Jopf 7 of the screw 4 as well as -from lateral recesses 15 * IS äfeB S '% ma ^ t, jrmgers 1 covered, at the same time the safety spring Io is located in these Depressions 15 »16 their hold ··

Upon actuation of the KLemmsehraube 4 by means of a Selaraiibeiiziehers the spring force of the securing spring Io is Laeh overcome · the lestklemmen a AnsehlUBsdrahtes in the HeffimeBkasteaen 3 by the tightened screw 4 is e | of Sehraiibe 4 as the Wb & st ea 13 * 14 a imbeabsiehtigtes ferdrehen not möglieh, ter Io engage in lute 5 of screw 4 * tüa & Feierdureh

Screw 4 held in the tightened position so that it can be rotated will*

Buren the "training of the safety spring Io with -proportional A good 3? ederwirlomg is achieved on the large Sederweg. The order the locking spring Io in the EL emment rager 1 and on the Screw 4 is also such that "when using a Screwdriver to tighten the screw 4 does not reach the safety spring Io if it slips and therefore cannot deform or even destroy it

Figs. 3 and 4 show an embodiment in which a basting spring 17 (Fig. 4) "is enclosed by a misshapen sheet metal part 18 and thus covered. Here, the east spring 17 and the sheet metal part 18 find their" hold again ien side depressions 15, 16 * This arrangement already protects the bast spring 17 when it is installed in the element support 1

The screw fastener as claimed ien Fig. 5 and 6 Sieherungsdruekfeder 19, the check has on the one hand against a collar 2o and on the other hand rests against a disc 21 the disc 21 includes Baetnoefcen. 22, 23 (Fig. 6) engage with the functions 24 of the screw head 7.

The screw locking can be used with all types of clamps & especially for securing τοη screws with Sehen— ksw. Series test clamps suitable.

Claims (4)

PA.286114 * 115.54 -4-Sights claims 1) resilient threadlocker to secure the ICLeffiiiisehraube Sound inhibiting, especially cable clamps against unintentional "Twisting, characterized in that the the clamping screw Peder securing against rotation either from ropes of the cable carrier or covered by an additional rope 2)! Spring-loaded screw locking device according to claim 1, characterized in that that an east spring (Io) lying in two levels with her upper salvation (9) in a kille (8) of the screw (4) is rotatably mounted, with offsets (13,14) of their lower leg ends (11,12) in Sfuten (5) of a grooved leiles {6) the hemase cover (4) engages and your screw head (7) soTsrie of lateral depressions (15,16) of the ileism body (1) is covered " 3) Pedendes screw locking device according to claim 1, characterized in that that an east spring (17) from a U-shaped sheet metal part (18) comprises and is covered, the detent spring (17) and the Eleeiiteil (18) in the side recesses (15,16) find their hold 4) Spring-loaded screw locking device according to claim 1, characterized in that a safety compression spring 0.9) presses a washer (21) covering it against the screw head (7) and that the washer (21) engages in the hats (24) of the screw head (7) Has hast cams (22,23).