DE1937766U - DUST PROTECTION PLATE FOR COVERING FREE FIELDS IN RELAY RAILS. - Google Patents

Description

PAW 0 ^ * 3/22/66

STANDARD ELECTRICS LORENZ
Corporation
Stuttgart-Zuffenhausen
Hellmuth-Hirth-Str _o 42

MG / Reg. 2937 mGmH
H.Werner - 15

Dust protection plate to cover open fields in relay bars

The invention relates to a new dust protection plate for covering open fields in relay bars.

EvS is known »to cover the unoccupied fields in relay rails with hard paper dust protection plates, so that the ingress of dust is also prevented through the back of a relay rail closed with a cap Dust protection plates are not only very expensive, but also require high assembly costs, A. In addition, this type of fastening has the disadvantage that the dust protection plates are not secured against twisting because only one screw is used, _etc.

Another suggested type of attachment is for the connection from dust protection plate with relay bar grooved pins made of soft plastic in front, which are inserted into the hole in the dust protection plate and then in the hole in the relay bar can be pressed in »The special design of the grooved pin enables the dust protection plate to be pressed against Secure twisting «, This type of fastening greatly reduces the Assembly costs, but two parts are still required «This

Vo / Bl

_ 2 -
MG / Reg »2937

affects separate warehousing, multiple ordering processes in production planning and yet several steps in assembly _r

It is an object of the invention to provide a dustproof panel which does not have all of the drawbacks mentioned, i.e. above all connected to the relay rail with a minimum of assembly costs The dust protection plate for covering free fields in relay axes is characterized according to the invention in that the dust protection plate with the grooved pins for fastening is made as a unit of plastic plastic. It will thus only one part is required that is simply inserted. The grooved pins carry according to the invention a lateral recess, so with A slight deformation of the grooved pin shaft is possible, For reasons of strength, according to a further development, the plate has longitudinal and transverse reinforcements on the one facing away from the grooved pins Side, in order to secure the dust protection plate against twisting According to the invention, at least two grooved pins “The grooved pin axis can according to the invention with the plate surface running to the relay station Form an angle smaller than 90 ° »In this way, the free end of the dust protection plate is on the other web of the relay bar pressed with a certain pressure.

The invention is explained in more detail with reference to the drawings. Show it:

Fig "1 to 3 the dust protection plate inserted into the relay bar and

Pig, 4 the dust cover alone.

As can be seen from FIG. 1, the unoccupied relay space in the rail is covered by a dust protection plate 1. On the side facing away from the relay bar, the plastic plate has longitudinal and transverse reinforcements 4 and 5 _? so that the dust protection plate is given the required rigidity. As the section according to FIG. 2 shows, the grooved pins 2 snap into place

MG / Reg «2937

pressing into the bores of the relay rail and. ensure a tight fit of the dust protection plate, the conical shaft of the grooved pin has lateral recesses 3? so that he -. ^r I calibrates the Press through the holes of the relay rail J

ο can deform «This makes it easier to insert and press in the grooved pins«. The recesses 3 are also suitable. 3 can be found. This view of the dust protection plate used also shows that the stiffeners of the plate are flattened towards the edge of the plate ^ The axis 6 of the grooved pin 1 indicated in Fig. 3 can also be selected so that it atte the dust protection I with the surface running to the relay position ei ^ en ^v / inkel less than 90 formed can thereby be achieved that after the pressing in of the dust protection plate into the bores of the relay "rail, the free end of the plate at a certain pressure on the web of the other Relaissehiene rests.

In Fig. ₄ 4 the side of the dust protection latte facing the relay rail is shown. Two grooved pins 2 are attached to secure against rotation and each snap into a hole in the relay rail. The grooved pins have a constriction at the end of the shaft to the plate hm, which is matched to the bore diameter and the thickness of the relay rail ₀ The conical tips of the grooved pins facilitate the introduction into the bore of the relay rail.

6 claims

1 3Io drawing, 4 Fig.

Claims (1)

RA. 154 (HO * 3/22/81 protection a η s ρ r ü c h e 1, P r..iib ^ ohutzp latte zum j ·, uaeckm free 7'eiaer ".; - ' ^: ' ■. ■■ ·. -.! --- lien, characterized by - ^.: .- ^.; .τ- · die Staubschu.tzpla.tte ( ¹ J ^{r <} :: t den 311. "" Attachment "d"> enend - τι he -'- V ^ tif ten (2) as -r-ine. ■ Jir.r.eit aas jla; t i-oliem Kunstc ^ nfl ^ p _: ^ ecteli * lot. . L 'u nub π c hu ΐ ζ υ 1 a 11 e na ch / η ε ρ ruch 1, d -. through 0 no. : ⁷ . eich η et that the grooved pins (2) have lateral recesses (3), J ^{,: ;;} -taubschiitzplatte according to claim 1, characterized in that the plate (1) has longitudinal (4) and throat reinforcements (5) on the side facing away from the locating pins (2). 4, ': i :: ^a ubschutzplatte according to iinsv.rjch 1 to "^; , οπ-μ" τπ --g. -: .- ■ iciinet since ^ s lie plate (1) s \ / ex Kerbntifte (2) true _r - ^f: if ^1:; f "- ^. ubsch; ^1. ι secure sheet against twisting. ^. Dust protection plate according to / nsnruch 3 _f, characterized in that the stiffeners (4 and b) of the plate (J) are flattened towards the end of the plate (Pig. 2 and 3). 6, dust protection plate according to claim 1, characterized in that the grooved pin axes (6) form with the attenoberflache Staubschutzp ¹ to the relay position is smaller towards an angle ρIs 90 °.