DE150547C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

In electric elevators with push-button control, certain locking mechanisms are required, by means of which locking occurs immediately when starting a journey in such a way that pressing another drive button while driving does not cause confusion or change the destination.
In the same way, confusion should also be excluded when two or more driving buttons are pressed down at the same time.

The former object can be achieved in such a way that, while one is depressed of the button switched on relay closes a shunt to the contact point of the push button, which the relay keeps energized, at the same time a second relay is closed, which the interruption of the current to the other relays.

A circuit of this type, as shown by Fig. 1, was now the the subject of this invention forming locking apparatus is based. Of the Description of the latter will first explain how the Circuit forwarded.

In Fig. Ι A, B, C, D, z. B. four stops, according to which the elevator by means of short pressure on push buttons a, b, c, can be controlled d .. The latter can be both in the driving chamber F as well as at the individual stations A, B, C, D outside of the, elevator shaft be arranged.

The corresponding contacts of all identically designated pushbuttons a, b, c, d are connected in parallel with each other through lines 1, 2, 3, 4, which lead to the locking arrangement. . The control current is fed to the push-button system through the line 5 and passes through the connection 5, 6 which short-circuits the coil η to line 6, which is the door contacts arranged in a known manner

1 ₁ , I ₂ , / ₃ , / ₄ of the landing doors and the lift chamber door contact / ₀ . The current flows through the normally closed stop contact H to line 7, with which the other contacts of the driving pushbuttons are connected and which ends in the locking device for the purpose of establishing the shunt.

Four control lines lead from the latter

12, 13, 14, 15 according to the floor switches O ₁ , p ₂ , 'P ₁ , q ₂ , q _x , T ₂ , which are alternately through the lines 16 and respectively. 17 are connected to the drive coils ν and w of the starter. The latter produce in any of the known designs - the circuit of the motor for forward and reverse gear.

In addition to the coil η, the locking arrangement consists of four coils Wi ₁ , m. ₂ , m ₃ , wz ₄ , which are connected on the one hand to the lines 12, 13, 14, 15 and on the other hand via the short-circuiting connections 8-1, 9-2 , 10-3, 1.1-4 ^w ith the leading to the pushbuttons lines i, 2, 3 4.

If one of the pushbuttons a, b, c, d is now depressed, the control current flows through the line 5, the connection 5-6, the control line 6 , which short-circuits the coil η _{, with the door contacts Z 1} , Z ₂ , Z ₃ , Z ₄ , / ₀ , stop contact H, line 7, from there through the closed drive button contact α respectively. b, c, d after the line ι respectively. 2, 3, 4, respectively, through the short-circuiting connection 8-1. 9-2, 10-3, 11-4 after the locking coil Mi ₁ respectively. Mi ₂ , m _s , in _v through line 12 respectively. 13, 14, 15 respectively _{after the floor switch O 1.} p. ₂ , P ₁ , q. ₂ , q _lt r ₂ , respectively through line 16. 17 after the drive coil ν respectively. w of the starter, to the power source back through line 18.

Magnetic forces are now generated by the current-carrying coil m , which, with the mediation of any Elektromechanisme.n, the new shunt 7-8 respectively. 7-9, 7-10, 7-11 and shortly thereafter cancel the connection 5-6 which short-circuits the coil η.

The control current now takes the following path: power source, line 5, coil n, line 6 with the door contacts Z ₁ , Z ₂ , Z ₃ , Z ₄ , Z ₀ , stop contact H, line 7, shunt connection 7-8 respectively. 7-9, 7-10, 7-11, coil 11I ₁ resp. in. ₂ , Wed ₃ , Wed ₄ , line 12 respectively. 13, 14, 15, floor counter O ₁ respectively. p. ₂ , p _v q. ₂ , q _v r ₂ , line 16 respectively. 17, drive coil ν respectively. w in the starter, line 18 back to the power source.

The coil η now traversed by the control current immediately removes the connections 8-1, 9-2, 10-3, 11-4 by means of any electromechanical mechanism, so that a pressure on another button during the journey because of the interruption of the pushbuttons leading lines I, 2, 3, 4 remains ineffective.

The end of the journey is initiated by the automatic opening of the floor switch O ₁ through which current flows, respectively, caused by the movement of the elevator. p. ₂ , p _v q ₂ , q _l , r. ₂ , then, like the drive coil ν respectively. w of the starter also the coil Hi ₁ respectively. Mz ₂ , Hi ₃ , Mi ₄ as well as the coil η de-energized and the control devices are returned to their rest position by spring pressure or weight, ie the connection 7-8 or 7-9, 7-10, 7-11 is canceled again , all connections 8-1, 9-2, 10-3, 11-4 are re-established and the coil η is again short-circuited by connection 5-6. The circuit is prepared for the start of a new journey.

The arrangement of the coil η can both, as shown here, in the line 5 respectively. 6 as well as in the other supply line 18 can be arranged. The coil η could also belong to a completely different, randomly present or specially arranged circuit.

Instead of interrupting each of the lines i, 2, 3, 4 separately by the coil η , one can also interrupt a common line branching off from the line 7 and leading to the other contacts of all the pushbuttons a, b, c, d.

The present invention now relates to a locking apparatus for producing the locking circuit just described, in which a particularly high level of operational reliability is achieved that for the production of the shunts 7-8 respectively. 7-9, 7-10, 7-11 a common contactor is arranged, which takes part in the movement of the relay armature after making the contact and inevitably cancels the connection 5-6 which short-circuits the coil η. The operational safety is further increased if the effect of the individual coils Mi ₁ , mi 1, m _a , m _i is designed to be equivalent by an arrangement concentric around this contactor.

Fig. 2 shows the entire device in a vertical section through the axes of two opposing magnet coils ,, z. B. through Wed ₁ and 7M ₃ .

Figure 3 is a horizontal section through the concentric magnet assembly of the lock.

The letters and numbers shown are identical to the designations in the diagram in FIG. 1. e _v e ₂ , e ₃ , e ₄ , e ₀ are the related iron cores of the coils Mi ₁ , Mi ₂ , Mi ₃ , Mi ₄ , n.

Set coil Mi ₁ receives current via line 1 when a button α is pressed down, iron core C _{1 is} lifted, with it the contact C ₈ attached to it, which comes into contact with the contact disk C _7. This first creates the shunt 7-8. Then, however, the disk C ₇ and the vertically displaceable sleeve h connected to it take part in the upward movement of the core C _{1 , whereby the contact disk S 0} , which is also connected to the sleeve Zi and previously rested on the contacts s _s and s _ü and thereby the short circuit 5-6 conveyed, is lifted from this. As a result, the short-circuiting connection 5-6 of the coil η is canceled; the latter is also traversed by the control current and lifts the iron core e ₀ up, with it the disk g attached to its extension, which in turn supports the Kk lüf d ddh, which rests resiliently on the contacts I ₁ , £. ,, z ' ₃ , i _i

Contacts i ₈ , t ₉ , t ₁₀ , f _H
8th

ventilates and thereby

_{8th 9 10 H}

interrupts connections 1-8, 2-9, 3-10, 4-II.

As a result, the trickling of the relay

spool secured after a journey has started. After interruption of the control current, the iron cores e ₂ , e ₀ and the sleeve h - possibly supported by spring force - fall back into their zero position. The lock is released and the coil η short-circuited again.

The coil η need not necessarily be arranged in the middle of the coils m

ίο, it could even be one with the associated parts e ₀ , g, i and t . form a separate apparatus. However, the arrangement shown here offers the structural advantage of the greatest possible use of space. _{The sleeve t} h can also be guided by the extension of the iron core e _{0 at the same time.}

The use of a common, movable contactor offers the further advantage that a lock can be set up in a very simple manner to protect against confusion when two or more buttons are depressed at the same time, so that in such a case only one trip takes place. This is achieved in that the stroke of the magnets C ₁ , C ₂ , e ₃ , e _{i is} set up differently in relation to the contact disk C _7. In the present case, for. B. the hub by inserting 1,2,3 respectively. 4 washers limited. Would z. B. the buttons a and c pressed at the same time, the cores e, and

retracted. Both contacts c _s and C ₁₀ will initially lift the disk C ₇ and sleeve h together. However, since the stroke of C ₁ is greater than that of e _s , the disc C _{7 is} ultimately carried on by the iron core C ₁ alone and thereby lifted off _{the contact C 10 again.} As a result, the coil m _{s is} de-energized and the iron core e _s falls down again. However, a new current cannot be introduced into coil m _ä , since the line at point 3-10 remains interrupted by means of coil η during the duration of the journey.

Claims (4)

Patent Claims: 1. Locking device for elevators with push-button control, which when pressing a push button automatically a shunt to the power connection point of the latter and immediately thereafter cuts off the current to the other push buttons, characterized in that, that the relays assigned to the individual destinations act on a common contactor, which participates in the movement of the relay armature after the shunt has been established and this inevitably removes the short-circuiting connection of another relay coil, which then, flowed through by the current, the interruption of the after the Causes press studs leading lines. 2. Locking device for elevators with push button control according to claim i, characterized in that the effect of the individual destinations associated relay coils by concentric arrangement of the same around the contactor is designed to be equivalent. 3. Locking device for elevators with push button control according to claim I and 2, characterized in that the interruption of the lines leading to the push buttons relay (s) is arranged in the middle of the relay initiating the shunt (m) . 4. Locking device for elevators with push button control according to claim ι to 3, characterized in that the relay (m) have different stroke, so that when two or more buttons are pressed simultaneously, the contactor of the relay with a shorter stroke through the contactor of the relay with the largest Hub are lifted and thereby their control currents are interrupted. 1 sheet of drawings.