DE6921989U - COLLECTORS INSERTABLE IN TRACKS - Google Patents

Description

Lüdenscheid, May 30, 1969 20:38 P / U 5

Lüdenscheid, Oenekinger Weg /
Telephone 2Ü655

Utility model registration
Hoffmeister & Sohn company

"In the opening of an approximately U-shaped busbar with several bare conductors - Usable pantograph (adapter) with an in. r running in the longitudinal direction of the busbar Control shaft to influence the contact and locking springs. "

The invention relates to an in the opening of a substantially U-shaped, '... on both side walls Connect two bare conductors at a distance from one another and, if necessary, one bare conductor (earth) the power rail having the bottom wall can be used Current collector (adapter) with a control shaft extending in the longitudinal direction of the busbar, which the contact springs against the conductors and locking springs in under-grip spaces of the busbar taxed. These adapters are used to supply power to a consumer, mostly lighting fixtures, some of which are borne directly by him. When the adapter is inserted into the opening of the rail should be, the control shaft must be adjusted to "0"; then it is in the on position adjusted, in which the ends of the contact and locking springs from the side walls of the adapter foot step out into their real action. There are only two for the forward rotation of the control shaft Locations. If the busbars have two conductors on top of each other on the two insides, that is

z.-ri. Mp, R, S, T and possibly on the bottom wall ei fifth conductor E, so you had to do the wiring, e.g. to create three separate switchable circuits on the adapter at the moment of suspension to the supply terminal of the corresponding Attach contact spring R or S or T, i.e. this connection only at the moment the attachment of the adapter or change accordingly, which is quite laborious. The same There is a need for such busbars in department stores, museums or similar applications on, if a consumer suddenly switched from one vector group to another vector group shall be.

The invention is based on the object

Stromy consumers

Adapt adapter so that rfie / all from the outset are wired to the adapter and that it remains with this wiring that you can only switch to another position by moving the control shaft to another position Vector group can effect instantly.

The invention solves this problem in that the control surfaces of the control shaft at the angle of rotation in such a way are offset against each other that the contact springs controlled by them when turning the

Control shaft from the switch-off position (O) in three Switch positions come into contact with the conductors (Mp and R or S or T). This achieves that you can instantly move the control shaft to one of the corresponding switch-on positions can change the vector group used for the power supply

If such an adapter is equipped with a rod-shaped body, which is arranged displaceably in the longitudinal direction against a spring, for leading contact with the earth line, in a preferred embodiment the rod-shaped body is prevented from rotating in the switched-off position (0). It is thereby achieved that an adjustment of the control shaft into a switched-on position which hinders the introduction is prevented .

An advantageous form of solution is that the rod-shaped body has an elongated opening with a locking recess in a central extension for the passage of the control shaft, into which the control shaft provided at this point with a locking projection is in the disconnected position (0) under the influence of a spring , preferably compression spring, engages. the

The arrangement of the bast return and the Rastvorö jump can of course also be interchanged.

In order to prevent the adapter from accidentally entering the opening in a position rotated by 180 ° the busbar is introduced, care is taken that this is done by mechanical means is excluded. It is therefore proposed to place it on the front wall on the conductor side next to the leading one At the end of the locking bar, a protrusion that can be interchanged and penetrates into a groove in the bottom of the busbar to be provided.

In order to reduce the overall length of the adapter and the control shaft, "tti" but the. exclusively the locking of the adapter in the power rail serving, hook-shaped outward To keep latch springs sufficiently wide, it is suggested to use the two flat latch springs in Cut their middle areas on one side in opposite directions and cut out on the control shaft accordingly narrow control surfaces opposite but offset in the axial direction of the control shaft to arrange, each of which has an approximately 270 comprehensive control surface to maintain the lock in the other switch-on positions follows.

'* · »F in the _{M 9I} ,

• I <ι> ■> (, -ι

f I

As far as the contact spring for touching the conductor Mp, this contact spring must be the conductive connection in all three switched-on positions maintained, which is achieved by having a relatively narrow control surface of the Control shaft follows an annular groove extending over approximately 270 ° in such a way that the associated contact spring l for the conductor Mp is kept in connection in all three other switched-on positions.

The three contact springs for conductors R, S, T are

conductive

with each other / connected, so only have one conductor connection terminal. The control shaft is then so far twisted until one of these contact springs rests on the corresponding conductor. The Formation of a phase short circuit can be avoided. For this purpose, those from the control shaft and the control surfaces influenced contact springs for the conductors (R, S and T) so strongly under tension standing trained so that they strive to touch the corresponding ladder strongly by themselves, as soon as the control surfaces recede as supports by twisting the control shaft from the circumference of the same "

<f

-6- In the drawing is the subject of the invention shown in an exemplary embodiment:

Show it:

Pig. 1 an end view of the adapter,

Fig. 2 is a side view,

Pig. 3 shows a section through the housing with a plan view of that serving as a ground conductor Locking device for the control shaft,

4 to 9 show the one in the opening of the busbar inserted adapter with the control shaft still in the 0 position, namely

4 shows the earth conductor in its pushed back position, which removes the locking of the control shaft,

5 shows the mechanical locking of the adapter in the retracted position and (dashed) in their later front end position in the three switching positions R, S, T,

6 to 9 the side views of the four contact springs for the ladder Mp, R, S and T as well

10 and 11 the two locking springs from FIG. Alone.

The U or H-shaped busbar 1 consists of Metal or plastic. A bare earth conductor E is located in the bottom bar and in the two side bars The bare conductors R, S, T, Mp (Fig. 4) are in insulating strips. In the transverse to the longitudinal direction of the

• ·. ·. t · · ι rr *

Busbar 1 extending insulating walls of the

Adapter housing 2 is a ^ expensive shaft Z made of insulating material rotatably mounted at one end

% has a rotary handle 3 formed. These

Wave 3 is used to control the four with ladder

Terminal clamps provided flat contact wires 6 for the conductors Mp, R, S, T, the connection ends of the three contact springs 6 for the conductors E, S and T with one another are conductively connected. The two lead wires of an adapter carried »not shown Power consumers are with the terminals of the contact spring 6 (Mp) on the one hand and dejf Terminal of contact springs 6 (R, S, T) connected, so that the contact springs 6 are placed on one of the three phase circles as desired and required be able. There is no longer any need to change the wiring on the adapter.

The metallic rod 4 acting as a ground conductor has in the middle a widening 4 ^a with an opening 4 for the passage of the control shaft 3, which is under the tension of a compression spring 4. The opening 4 also has a latching recess 4 ^{C in} such a way that the compression spring 4 can only be effective when the control shaft 3 is in the O position, that is, a projection 3 of the same allows this. The control shaft 3 is thus unlocked

automatically when the adapter 2 is inserted into the opening of the busbar 1 as soon as the leading free end 4 ^{e of} the rod 4 reaches the earth conductor E. If the adapter 2 is wrongly rotated by 180 ° inserted into the opening of the busbar 1, the end 4 of the rod 4 pushes into a longitudinal groove 1 in the bottom of the busbar 1 into the void, so that the lock 4, 3 is not triggered and thereby a Rotation of the control shaft 3, 3 ^a remains prevented. A frontal projection 2 fits into the ^{bottom groove 1 a} and ensures a distinctive insertion of the adapter in the correct position.

If the adapter 2 is inserted correctly and the control shaft 3 is rotated, the control surfaces 3 ^{C of} the control shaft 3, which are offset from one another in the longitudinal direction, act on the locking springs 5, which are arranged side by side in the same way, in such a way that they urge them outwards and their outwards Grip angled ends 5 behind the inwardly directed webs 1 of the busbar 1. Pig. 5 shows that the locking device for the adapter 2 remains in effect in each of the three switching positions R, S, T because the locking springs 5 are supported by the round control surface 3 ^d as the circumference of the control shaft 3, which extends over approximately 270 ° extends. The two control surfaces 3 ° of the control shaft 3 are arranged offset from one another by 180 °. The two latch springs 5, 5 ^a (Fig. 2, 10 and 11) are in

-9-their central area 5 ^{b cut out to} about half its width in order to save on the length for the control shaft 3.

The flat contact springs 6 for the four conductors Mp, R, S, T are controlled by corresponding control surfaces 3 ^e , 3 ^f ; 3 ^g , ^V ; 3 ¹ , 3 ^k ; 3 ¹ , 3 ^{m of} the control shaft 3, 3 ^a controlled. They are designed in such a way that, depending on the type of material and thickness, they push against the corresponding conductors Mp, R, S, T to such an extent that the power line is secured. So you are under the appropriate bias. The interruption of the power connection when switching off by the control shaft 3 »3 takes place in each case by the cam control of the control shaft 3, 3 ^a , which they lift off the conductors.

The contact spring 6 for the conductor Mp (Fig. 6) remains

e f as a result of the design of the control surface 3, 3 of the control shaft 3 at this point in all three switching positions R, S, T switched on. Only the contact springs 6 (R) (Figo 7), 6 (S) (Fig. 8) and 6

, (Fig. 9)

(T) / are only pushed in one of the associated three switch-on positions R, S * T (Fig. 1) against the associated conductor R or S or T if the control surfaces 3 ^g , 3 ¹ , 3 allow this according to their position are offset from each other by 90 °. In the other switching positions, they are due to the circumferential surfaces 3, which extend over approx. 270 °,

-10-

3 and 3 ^m lifted from the conductors against their spring tension and pushed back in such a way that their free ends allow the adapter 2 to be inserted and removed from the busbar 1 unhindered, χ)

It would theoretically also be possible to have two conductors on one side wall of busbar 1 and on the opposite one Side wall to arrange a ladder to get in this way two vector groups.

x) The three contact springs 6 for the conductors R, S and T are connected to one another by a conductor strip 6 which has only one common connection terminal 6 ″ for the one supply wire of the consumer.

Claims (1)

- ι - 'i Protection claims: if 1.) In the opening of an essentially U-shaped, on each of its two side walls two bare conductors spaced one above the other and, if necessary, a bare conductor (earth ^ on the loden wall having busbar insertable current collector (adapter) with a running in the longitudinal direction of the busbar Control shaft which controls the contact springs against the conductors and locking springs in under-grip spaces of the busbar, characterized in that the control surfaces (3 ^e »3 ^g , 3 f 3 of the control shaft (3) are offset from one another in terms of the angle of rotation so that the controlled by them Contact springs (6) come into contact with the conductors (Mp and R or S or T) when the control shaft (3) is turned from the switch-off position (0) to three switch-on positions. 2o) adapter according to claim 1 with one in the longitudinal direction rod-shaped body for leading contact, arranged displaceably against a spring the earth line, characterized in that the rod-shaped body (4) in the switched off Position (0) is prevented from rotating./ 3.) Adapter according to claim 1 and 2, characterized in that the rod-shaped body (4) in a central extension (4 ^a ) for the passage of the control shaft (3) has an elongated passage · (It (Vt «t tt - · »ft a,", break (4 ^b ) with a Rastrücke projection (4 ^C ), in which the control shaft (3) provided at this point with a locking projection (3) engages in the Ausechalt position (0) under the influence of a spring (4). / 4 x) Adapter according to claim 1, 2 or 3, characterized in that at the conductor-side end wall next to the leading end (4 ^e) of the locking bar (4) into a bottom groove (1 ^a) of the busbar (t) penetrating TJnverwechselbarkeitsvorsprung (2 *) is provided·. 5) Adapter according to claim 1 and one or more of claims 2-4 with two of its locking in the busbar serving, on both sides of the control shaft arranged opposite, hook-shaped outwardly directed locking springs, each through a control surface of the control shaft in under-grip spaces of the bus bar einriegelbar, characterized in that the two flat bar springs (5 »5 ^a) are cut out on one side in opposite directions in their central portions (5) and the control shaft (3) correspondingly opposite, but in the axial direction of the control shaft offset control surfaces (3) ( 3 °), each of which is followed by an approximately 270 ° comprehensive control surface (3) to maintain the locking. 6921985 6.) Adapter according to claim 1 and one or more of claims 2 to 5, characterized in that the relatively narrow control surface (3 ^e ) of the control shaft (3) follows an annular groove (3) extending over approximately 270 ° in such a way that the associated contact spring (6) for the conductor (Mp) is kept in connection with the conductor (Mp) in all three other switched-on positions (R, S, T). . 7o) adapter according to claim 1 and one or more of claims 2 to 6, characterized in that the contact springs (6) for the conductors influenced ^{by the control shaft (3) and the control surfaces (3, 3 g} , 3 ¹ , 3 ¹⁾ (R, S and T) are formed so strongly under tension that they strive to touch the corresponding conductor strongly as soon as the control surfaces as supports by rotating the control shaft (3) withdraw from the circumference of the same. J For the applicant: Patent attorney 8 _e ) Adapter according to claim 1 and 7 »characterized in that the three contact springs (6) for the conductors (R, S and T) are connected by a conductor strip (6 *) to a common connection terminal te ^r )