DE1873199U - KEY SWITCHES WITH MECHANICAL LOCKING DEVICE. - Google Patents

Description

SIlLIBIS & HAISKB Corporation

Munich, April 18, 1963 Witteisbacherplatz

PA 61/2707

S 38/908 / 21c Gm

! Key switch with mechanical locking device

The innovation "relates to a key switch, in particular for communication requests, with a mechanical locking device .

arrangements of this type are already known.

Hat / l! Hey

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fcjo is, for example, "in a known key switch " - with a locking device a rotatably mounted star-shaped switch member is arranged, each time a key is pressed, a ratchet wheel and a pawl are incrementally advanced.

There are also arrangements known in which with Each time a button is pressed, a tilting mechanism is controlled, which also has rotatably mounted parts known arrangements required deflection of the direction of movement of the key stem in the direction of movement of the rotatably mounted Heile explored relatively complicated Components and the locking device is spatial in particular because of the necessary storage of the parts mentioned correspondingly large »

The purpose of the present firing is to control the locking device to simplify for a key switch of the type mentioned and to reduce its dimensions «

This is achieved according to the innovation in that the locking device contains a bolt which is coupled to the key shaft _and slidable in its operating mechanism and which, when the key is pressed for the first time, interacts with a key switch

locked in a switching position, and that egg locking device also one in the directions of movement the 'liastenscliaf tes slidable release element is assigned, which is moved from its rest position to a preparatory position the first time you press a key Coupled to the transom attached driver with aem seal so that the release element is activated when the key is pressed a second time The lock in unlocking division penetrates and that When you go back the key, the release slide is only in his Rest position is reset when the bolt has exceeded its locking * position.

In a newly designed [key switches are therefore only relatively few and very simple G-members are required without elaborate Machining can preferably be produced as cheap pressed parts. In particular, as a result of the Direction of movement of the key shaft taking place displaceability of the above-mentioned members, their storage is relatively simple and, above all, there are no special means of deflection the directions of movement of the key shaft in different directions Directions of movement required so that the locking device Overall, they can also be designed to save space, which is particularly important when a Multiple key switches in a keypad of a learning reporting system is of particular advantage.

In an embodiment of the renewal according to designed ^r Dastenschalters with mechanisoiler locking device of the related in a known manner with the key top and EADERSHIP sleeve in a 3? Axially displaceable key shaft, for example, equipped with a hat, in which a projection or web of the i 'in Clen directions of movement Astenso-like slidable bolt engages so that the bolt is moved simultaneously with the movement of the pushbutton when the key switch is pressed a locking of the key switch in a Selmltstellung, "for example by the fact that a crouch or pin arranged on the bolt rests against a crouch of the lock during the aforementioned decrease, so that the Ta, sc" censchaf t on the far side, which is coupled to the bolt in an already heated manner This prevents a decline.

The key shaft can also be equipped with a shoulder or web, which when the key is pressed for the first time i.e. when an unlocked key switch is actuated only after a certain initial movement of the key shaft has elapsed at an approach or web of one likewise in the directions of movement the key shaft engages the displaceable trigger member so that it moves from its rest position into a preparatory position is moved. Appropriately, the

However, the described displacement of the release member by the Bolt, for example, attached to a bolt on the bolt Approach or web, which in the rest position of the key switch a certain distance from the already mentioned approach or web of the release member. ,, so that this also only after a certain initial movement of the Latch is moved in preparation position. This type of displacement of the release link is through the latch. advantageous because once the latch in a yet to be described quietly also functionally in other ways with the release element is coupled and on the other, because this is a special design of the key stick is unnecessary, so that the locking device is also more common on key switches Design can be arranged. .

Both the latch and the release link can be in ent-; ^: Speaking trained guides of the key frame be slidably mounted «. In an expedient embodiment of a key switch designed according to the invention — however, a fixedly connected to the key switch, preferably screwed to the key frame, is a cover plate — as a sliding guide and. - .. "Holder for the bolt is designed, for example such that the cover plate has a recess in the area of the bolt and the inner edges of the two legs of the cover plate each engage in a hat of the Kifegels one as

Leading frame provided cutout in which the release element in one of the bearing of the bar in the cover plate; similar way is slidably mounted, and which further of a part of the bolt cooperating with the lock when the key switch is locked, for example from a be "-reits mentioned crouching arranged on the latch, is overlapped.

The said components vorgeschilderte arrangement and design-is particularly advantageous because even in terms ■ "" independent from the key shaft movable storage the "total lock device manufactured as a complete unit and conventional design can be arranged in a simple way on key switches ^, with only the latch is coupled to the key shaft and on the other hand, because with regard to the above-mentioned storage of the release element in a cutout of the bolt with simultaneous overlap of this cutout by the lock and by the mentioned part of the bolt, both the release element and the last-mentioned part lie in such a plane, preferably the same, -that they can interact with the lock in a simple and direct manner without additional links * - ■: .-- ■ *

According to a second further development of the control,.: ./ "" an angled, resilient ?. Cloth as sanding

Act brake on the release member, "for example by a flap obtained by punching and suitable crimping of a cover plate consisting of low material rests under pretension on the release member that a conical protrusion is pressed in at the appropriate point on the tab, which engages in one of the conical craters present on the release member. The brake tab and the marking points ensure with great certainty that the release member is self-locking in its intended position The aforementioned tab is used in an expedient embodiment of _: - - ! Price increase also as a guide contour for the moving driver and is shaped in such a way that the driver can only couple with the release member when the seal is locked Position. This can be achieved in that the driver, which is firmly connected to the bolt and is preferably designed as a leaf spring, rests under pretension against the said edge of the tab and ";" when moving. of the bolt slides along it, the edge being inclined, for example, in such a way that a latching point that is present on the release member according to a further idea of the innovation is covered by the rag] * as long as the release member is in its rest position and only then out of the incline

freely accessible-emerges when the trigger link is in the preparatory position is shifted. In this situation, the after " a further development of the price increase on his the key shaft facing end equipped with a hook-shaped lens Engage the driver in the locking point so that the bolt is coupled to the release element.

The unlocking of the key switch, which is locked in the manner shown above, takes place according to the hiring in that the bolt moved by a renewed actuation of the key switch moves the release member from the preparatory position into an unlocking point via its driver, and that the release member remains in this position for as long as it is suitable trained crouching or pins holds the lock in the unlocked position until the bolt, which is in reverse motion following the actuation of the key switch under the influence of a return spring already mentioned, has exceeded its locking position and during its subsequent remaining movement the release member from the unlocked position back into its rest position ^moved back.

However, the key switch can also be unlocked by External tripping can be brought about by, according to an expedient development of the inflation rate, a preferably as

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pivotable lever has formed locking devices, the one coupling of the lock with a device located outside of the button ^ switch to influence the external Enable key switch. For example, the. : r

Lock have a hole in which a linkage of the external device engages. Now, for example, the trigger button shared with a plurality of key switches or actuated device connected to an electromagnetic release, the lock is moved in such a way that the bolt located in the locked position. is released and can return to his Euhelage. the The device can also be designed in such a way that a plurality of of key switches are connected to each other via the linkage engaging in the individual locks, so that at by pressing any key above its bar caused movement of the lock affecting the other Key switch, for example the unlocking of the previously: "" ■ -locked Button switch takes place.

* The key switch formed in the manner described can thus with a compact design and easier to use Components both locked in a switch position and optionally either by actuating them again or by ! External tripping can be unlocked and a mutual influence of several key switches according to the innovation are brought about, so that the innovation according to Key switch in a particularly advantageous way does justice to the diverse switching tasks in telecommunications systems.

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The subject of the innovation is based on the in the Figures 1 to 8 illustrated embodiments explained in more detail.

Show in detail

Fig. 1 to 3 in a view from the front with a push button Locking device in three different operating positions, namely in the rest position (Fig. 1) shortly before locking (Fig. 2) and in the locked switch position (Mg. 3),

4 shows the push button in a simplified representation with a side view, with a contact spring set also being indicated.

5 to 8 the representation corresponds accordingly to that 1 to 4. The push button is of the same type as that shown in FIGS Button, but equipped with a different embodiment of the locking device.

The push button shown in Figs. 1 to 8 has a Key frame 1 with a guide sleeve 2 in which a key shaft suitably connected to a key button 3 4 is axially displaceable. The key button 3 can be in a customary with illuminated pushbuttons and in the figures unspecified type transparent and ... be provided with lettering or colored markings, so

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that with the help of an incandescent lamp arranged inside the pushbutton, not shown in detail in the figures an illumination of the key button and, on the other hand, a signaling depending on the respective holding position the button is enabled. The button button 3 with the Key shaft 4 is under the action of a, arranged in a manner known per se inside the push button, indicated by a dashed line Return spring 5 shown arrow, which the parts mentioned in the Pig. 1 and 5 shown rest position forces.

A Deek plate β or 7 designed as a leaf spring is with two retaining screws 8 and 9 attached to the key frame 1., and reaches behind you with an angled T% 1 10 or 11 Approach of the key stick 4, so that this together with the Key button 3 in his. Rest position is limited. The Deek plate β or 7 each has a cutout 12 or 13, in which a bolt 14 or 15 is mounted so as to be axially displaceable. The DEekbleeh also has a tab 16 or 17, which once braking with leather pressure on one in a guide of the Latch 14 or 15 axially displaceably mounted release member 18 or 19 rests and on the other hand with its edge 20 or 21 represents a guide contour for a driver 22 or 23 when the latter is moved in a manner that is still to be described. That movable release member 18 or 19 has three different Place conical craters 24 and 25 and the lobe U

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or 17 of the stationary Deekbleche has a conical Wart 26 or 27, so that the wart according to the respective Position of the trigger member can snap into one of the craters and thus fixes the respective position of the trigger member will. The driver 22 or 23 is designed as a leaf spring and is firmly connected to the bolt 14 or 15. On his that Key button 3 facing end of the driver is offset hook-shaped and can be given with the rabbit formed thereby Time in a way to be described in a rest area

or 29 of the release element 18 or 19 snap into place. Furthermore, as can be seen from FIGS. 5 to 7, the bolt 14 or 15 has two lugs 30 which are arranged at some distance from one another. 31, which serve to bring the release member into different positions by attacking its web 44 during the movement of the bolt in a manner still to be described. Furthermore, the bolt is equipped with a cam 32 in FIGS. 1 to 3 and a pin 33 in FIGS 35 pivot. In the embodiment shown in FIGS. 5 to 8, this lock 35 has a breakthrough 36 in which a pin 37 firmly connected to the release member 19 engages, which in certain positions of the release member by means of a suitable shape of the Durehbruehes 36 also pivots the lock 35 . This last-described pivoting of the lock 35 is carried out by the release member

in the embodiment according to Mg. 1 to 4 through a curl-38 of the release element 18, which with corresponding position of the release link on the hook already mentioned of the lever 35 acts. In the exemplary embodiment according to FIGS. 5 to 8, the release element 19 is on its opposite side to the key button The end is provided with a slot 39 which is axially displaceable in a collar screw 40 arranged on the key frame 1 is stored and thus serves to support the slide guide present in the bolt .des release member. the Lock 35 has a recess. 41 provided, in which a arranged outside the pushbutton, for example for trip-free or for the mutual influencing of several key switches serving, not shown in the figures can engage.

The lock 35 is under the influence of a spring force 42 shown in the figures by a dashed arrow, which the unaffected lock in their in Figs. 1 to 3 and 5 to

7 illustrated rest position forces. 43 is shown in FIGS. 4 and

8 indicated a set of contact springs arranged on the pushbutton.

The operation of the operations shown in Figs. 1 to 4 will now be described described device shown.

If, starting from the rest position shown in FIG. 1, the key button 3 as shown in Fig. 2 in the arrow direction moves, the key stick 4 presses on one in the Drawing not shown approach of the bolt 14 and this is moved concurrently with the key stem, laughs A certain initial movement of the bolt runs its lock 32 on the inclined surface of the loekens 34 of the lock 35 and with further movement of the bolt, the lock 35 rotatably mounted in the screw 9 is pivoted against the spring force 42 and it can thereby be coupled in the recess 41, not shown and already described Device an influencing, for example a triggering of locked other! Key switches can be brought about. Has the lure 32 with further movement of the bolt leave the crouch 34 of the lock, it takes it under. Effect of the spring force 42 returns to its rest position. The driver 22 firmly connected to the bolt slides during the just described Movement of the latch on the edge 20 of the flap of the deek plate 6 along, with the hook-shaped lase of the driver in which in the rest position of the release member by the -sap 16 still hidden latching point 28 can not couple. Furthermore, during the movement of the bolt, the release member 18 is through the not shown, but in the fig. 5 to 7 apparent approach 30 from his in the lig. 1 in its rest position shown in the Pig. 2 and 3 shown Preparatory position shifted by the approach 30 on the web

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of the trigger member-attacks. In the preparatory position of the With the release member, its latching point 28 emerges from a bevel of the edge 20 of the tab 16, which can be seen in the figures emerges and is freely accessible in such a way that the rabbit of the driver resting against the edge 20 under resilient bias can engage when the bolt is in its locking position described below.

In a certain position of the action of the return spring 5 following the actuation of the key The cam 32 of the bolt hooks behind the locks the lock 35 and the bolt is prevented on further decline. The push button is thus locked in this position. The driver, which runs in the same direction as the bolt, engages in this locked position with his nose in the Preparing the release element in the manner already described is a freely accessible locking point 28, see above that the bolt is now mechanically coupled to the release member via the driver.

If the push button is to be unlocked, this can be done, for example, by triggering the premd via the already mentioned external device engaging in the recess Ü1, by the lock -35 against the spring force 42 in such a way is pivoted so that the cam 32 of the bolt on the cam 34

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of the lever can pass unhindered and thus the bolt and the key holder coupled to it with the key button return to its rest position under the action of the return spring 5. In the last part of this return movement, the trigger link; 18 by the in fig. 5 to 7 shown approach 31 of the Riegel moved back from his preparation position to his rest position, which can happen unhindered, since the one with the Latch connected driver compared to the trigger member has a lead.

The pushbutton can, however, also be activated by pressing the Button to be unlocked. If in fig. 3 shown locked switch position of the button button 3 pressed again, the bolt "Ί.4 i * L already written ' Moved parallel to the key shaft. Here takes the bolt 14 over the driver 22 and the locking point .28 with the Riqspl coupled release member 18 in the same direction with and brings it from its preparatory position into an unlocked position. The trigger member swivels with it the lock 35 against its cam 38 via the cam 34 the spring force 42. When going back the bolt in the direction In its rest position, the release member remains in a crater 24 by means of the locking tab 16 self-locking in its unlocked position and holds the lock 35 close ~ as before in the pivoted Position, so that the cam 32 pass the cam 34 unhindered

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can and thus locking is no longer possible. in the The bolt then brings the last part of its decline in the manner already described by means of the action on the release member Approach 31 the release member from its unlocked position back into its rest position, so that the lock 35 is back in can return to their position of rest.

The mode of action of the in fig. 5 to 8 shown arrangement corresponds analogously to that just as it is to the in the fig. 1 to 4 shown arrangement has been described. Apart from the different training of some components that Exercise the same function in both exemplary embodiments, but the pivoting of the lock 35 takes place during unlocking in that instead of one arranged on the bolt A cam is firmly connected to the bolt via a projection of the bolt Pin 37 engages in an opening 36 in lock 35 and through those from the $ ig. 5 to 7 apparent curve shape of this breakthrough, the lock 35 is pivoted when the trigger member is in the unlocked position.

9 subsequent claims
8 figures

Claims (9)

P.A. 267 085 * 4/22/63 18 - Srei ft tic ■ t z; an s ρ r ü c Ii e 1.! Key switch, in particular for telecommunications systems, with a mechanical locking device, characterized in that the locking device contains a bolt (14, 15) which is coupled to the key stem (4) and which is displaceable in its directions of movement and which, when the key is pressed for the first time, interacts with a movable lock (35) that locks the key switch in a holding position, and that the locking device is also assigned a release element (18, 19) which can also be displaced in the directions of movement of the key shaft and which is displaced in-line preparation position when the key is pressed for the first time, in which it is coupled to the bolt via a driver (22, 23) attached to the bolt, so that when the button is pressed a second time, the release element brings the lock into the unlocked position, and that when the button goes back, the release element only returns to its rest position is reset when the bolt is ne has exceeded the locking pitch. ^r 2. key switch with locking device according to claim 1, characterized in that the displacement of the release member (18, 19) from its rest position into the preparatory position and its return to the rest position is carried out by the bolt (14, 15), for example by means of the bolt attached to the bolt Approaches (30,31)> which act on a web (44) of the release element » 3. key switch with locking device according to claim 1 or 2, characterized in that a stationary with the Key switch connected cover plate (6.7?) 'As a sliding guide and / or holder for the displaceable bolt (14, 15) is formed. 4. Key switch with locking device according to claim 1 or 2, characterized in that the release element (18, 19) is in a cutout (12, 13) designed as a guide frame of the bolt (14,15) is slidably mounted, and that the above-mentioned section from the Spelte (35) and from a ^ m when locking the key switch with the lock cooperating part (32) of the bolt (14,15) overlaps will. 5. Key switch with locking device according to claim §, characterized in that the Deekbleeh (6,7) with a resilient trained tabs (16,17) acts as a grinding brake on the release member (18,19). 6. key switch with locking device according to claim 5, characterized in that the resilient tab (16, 17) of the cover plate (6, 7) are marking points (24, 25). has, which in cooperation with corresponding marking points (26,27) on the release member of the respective Fix the position in a self-locking manner. 7. key switch with locking device according to claim 5, characterized in that the tab (16, 17) serves as a guide contour for the moving driver (22, 23) and is shaped in such a way that the driver can only couple with the release element (18,19) when the bolt * (14,15) is in the locked position. 8. Key switch with locking device according to one of the preceding claims, characterized in that with the bolt (14,15) firmly connected, preferably as, leaf spring formed driver (22,23) on his the end facing the key shaft has a hook-shaped nose has, which in the locked position of the key switch engages in a latching point (28, 29) of the release element (18, t (9). 9. Key switch with locking device according to one of the preceding claims, characterized in that one preferably designed as a pivotable lever lock (35) has devices (41) which a clutch of the lock * with a device outside the key switch for external influencing of the key switch.