DE1067072B

DE1067072B -

Info

Publication number: DE1067072B
Application number: DENDAT1067072D
Authority: DE

Description

DEUTSCHESGERMAN

Die Erfindung bezieht sich auf eine Vorrichtung zum Sperren von Fernsprechapparaten, bei der ein Zapfen die Ausnehmung einer den Wählvorgang bewirkenden Scheibe durchgreift und an seinem freien Ende ein die Wählscheibe hintergreifendes Verriegelungsglied aufweist, welches mit dem drehbaren Schließzylinder eines Schließwerkes, dessen Zuhaltungen über einen Schlüssel einordnenbar sind, gekuppelt ist und einen als Verdrehsicherung dienenden, insbesondere in die benachbarte Ausnehmung der Wählscheibe eingreifenden \⁷'orsprung aufweist. Derartige, in zahlreichen unterschiedlichen Ausführungsformen verwirklichte Telefonsperrer weisen den Nachteil auf, daß sie aus metallischen Werkstoffen hergestellt sind, so daß nach mehrmaligem Benutzen des Telefonsperrers durch Einstecken des Zapfens in die für den Finger vorgesehene Ausnehmung der verhältnismäßig dünnwandigen, aus Kunststoff gefertigten Wählscheibe, sehr leicht Verkratzungen, Risse und Beschädigungen hervorgerufen werden, wodurch sich zumindest ein sehr unschönes Aussehen des gesamten Telefonapparates ergibt.The invention relates to a device for locking telephone sets, in which a pin extends through the recess of a dial causing the dialing process and at its free end has a locking member engaging behind the dial, which can be arranged with the rotatable lock cylinder of a locking mechanism, the tumblers of which can be arranged via a key are coupled and serve as anti-rotation device, in particular engaging in the neighboring recess of the dial \ ⁷ 'has orsprung. Such telephone locks realized in numerous different embodiments have the disadvantage that they are made of metallic materials, so that after repeated use of the telephone lock by inserting the pin into the recess provided for the finger of the relatively thin-walled, plastic-made dial, very easily Scratches, cracks and damage are caused, which results in at least a very unsightly appearance of the entire telephone set.

Um dies zu vermeiden, wird erfindungsgemäß eine Vorrichtung der vorgenannten Art so ausgebildet, daß der sie einerseits aus einem als geschlossene Baueinheit ausgebildeten Schließwerk und andererseits aus einem den Zapfen sowie Vorsprung tragenden, das Schließwerk aufnehmenden und aus einem Kunststoff gespritzten bzw. gegossenen Gehäuse besteht. Durch eine derartige Ausbildungsform, bei welcher vor allem die mit der Wählscheibe zusammenwirkenden Teile nunmehr aus Kunststoff bestehen, lassen sich derartige, bisher auftretende Beschädigungen der Wählscheibe vermeiden, und es wird zudem eine die Herstellungskosten sehr beträchtlich reduzierende Fertigung derartiger Telefonsperrer ermöglicht, da die bisher erforderlichen, hohen Bearbeitungskosten bei derartigen Gehäusen in Fortfall kommen, wobei zusätzlich noch die Möglichkeit besteht, bei eventuell eingetretenem Verlust des Schlüssels den Sperrer so zu zerstören, daß er ohne Verletzung der Teile des Telefonapparates auch gewaltsam entfernt werden kann.In order to avoid this, a device of the aforementioned type is designed according to the invention so that on the one hand from a locking mechanism designed as a closed structural unit and on the other hand from a pin and projection carrying the locking mechanism and from a plastic injection-molded or cast housing. By such a form of training, in which above all the parts interacting with the dial are now made of plastic, can such, Avoid previously occurring damage to the dial, and it will also reduce the manufacturing costs allows very considerably reducing production of such telephone locks, since the previously required, high processing costs for such housings are eliminated, and in addition there is the possibility of destroying the locker in the event that the key is lost, that it can also be forcibly removed without damaging the parts of the telephone set.

Zwar ist es schon seit langem bekannt, eine Verschlußeinrichtung für Telefone, die im wesentlichen aus zwei Teilen, nämlich aus einem den Telefonhörer übergreifenden Arm sowie einem an dem Armende angeordneten, als Verschluß dienenden und mit einem vorspringenden Zapfen in die Ausnehmung der Wählscheibe einführbaren und dort verriegelbaren Keil so auszubilden, daß der den Telefonhörer übergreifende Arm aus Kunstharz hergestellt ist. Jedoch wird hierbei der mit seinem vorspringenden Zapfen in den Durchbruch der Wählscheibe eingreifende zylindrische Verschlußteil in üblicher Weise gefertigt, da es sich Vorrichtung zum Sperren von Fernsprechapparaten It has been known for a long time, a locking device for telephones, which consists essentially of two parts, namely an arm that crosses the telephone receiver and an arm arranged at the end of the arm, which serves as a lock and can be inserted into the recess of the dial with a protruding pin and there to form lockable wedge so that the arm across the telephone receiver is made of synthetic resin. However, in this case the cylindrical closure part engaging with its protruding pin in the opening of the dial is made in the usual way, since it is a device for locking telephone sets

Anmelder: Burg-Wächter K.-G., Alfred Luling_r Applicant: Burg-Wächter K.-G., Alfred Luling _r

Volmarstein/RuhrVolmarstein / Ruhr

ja hierbei um einen aus Präzisionsteilen zusammengesetzten Spezialverschluß handelt, dessen Teile nicht ohne weiteres aus Kunststoff gegossen oder gespritzt werden können, da die für die Funktionssicherheit der zusammengehörigen Teile erforderlichen, genauen Fertigungstoleranzen, bedingt durch die nur schwer beeinflußbaren Materialschrumpfungen in den verschiedensten Bereichen eines Gußstückes aus Kunststoff, nicht in dem erforderlichen Maße eingehalten werden können.yes, this is a special lock composed of precision parts, the parts of which are not Can easily be cast or injected from plastic, as the functional reliability of the related parts required, exact manufacturing tolerances, due to the difficult to influence Material shrinkage in various areas of a casting made of plastic, cannot be complied with to the required extent.

Die erfindungsgemäße Vorrichtung zeigt eine Lösung auf, die es im Gegensatz zu der bisher vertretenen Auffassung über die Verwendung von Kunststoffteilen gestattet, gespritzte oder gegossene Kunststoffteile auch für weitere, als Präzisionsteile anzusprechende Teile eines Telefonsperrers zu benutzen, um hierdurch eine wesentliche Verbilligung und Verbesserung der bisher bekannten Telefonsperrer zu erreichen. The device according to the invention shows a solution that is in contrast to the one previously represented Approved to view the use of plastic parts, injection-molded or cast plastic parts can also be used for other parts of a telephone lock that are to be addressed as precision parts, in order to achieve a substantial reduction in the price and improvement of the previously known telephone locks.

Eine besonders günstige Ausbildung des Telefonsperrers ergibt sich dann, wenn dem Gehäuse, ein gesondertes, für andersartige Verschlußeinrichtungen, wie Schlüssellochsperrer od. dgl., verwendbares, mit dem Verriegelungsglied kuppelbares Schließwerk zugeordnet ist, welches also getrennt hergestellt und lediglich in das Gehäuse eingeschoben werden kann. Das Gehäuse besitzt zu diesem Zwecke eine mit stirnseitiger öffnung versehene Ausnehmung, die zur Aufnahme des Schließwerkes bestimmt ist und welche nach außen durch eine eine Durchtrittsbohrung für den Schließzylinder aufweisende Stirnplatte abgedeckt ist, wobei die Stirnplatte zweckdienlich von den nach, innen vorspringenden Rändern einer das Gehäuse über-A particularly favorable design of the telephone lock results when the housing, a separate, for other types of locking devices, such as keyhole locks or the like. Usable, with the locking member is associated with couplable locking mechanism, which is thus made separately and can only be pushed into the housing. For this purpose, the housing has an end face Opening provided recess which is intended to receive the locking mechanism and which is covered to the outside by a through-hole for the lock cylinder having face plate, the front plate expediently from the inwardly protruding edges of a housing over-

909 638'75909 638'75

Claims

gripping, in particular by frictional engagement or the like. Retained sleeve can be fastened. It is just as well possible to design the end plate as a one-piece cap that overlaps the housing wall and is held in particular by a frictional connection. The locking member is designed in such a way that it has an eccentrically arranged:; Has bore. In order to create a better connection between the locking member and the rotatable lock cylinder end, the locking member designed as a plate is provided with an eccentrically arranged hub which engages over the lock cylinder end and is positively coupled to it by a pin or the like, the hub with a pin is provided which cooperates with the locking mechanism, which is non-rotatably mounted in the housing, or with end stops which are provided on the housing itself and serve to limit the rotational movement of the lock cylinder. In order to achieve easy insertion of the pin of the telephone lock provided with the eccentrically mounted plate of the locking element into the opening of the dial, the front edges of the disk-shaped locking element or pin are strongly rounded or beveled. The drawing shows an embodiment of the invention. 1 shows a sectional view of the telephone lock, FIG. 2 shows a front view of the same with the sleeve and cover plate removed, and FIG. 3 shows a sectional view along the line III-III of FIG Recess 6, which up to the rear wall 7 -eight, the locking mechanism 8, which consists of a tubular receptacle 9 for the rotatable lock; ylinder 10 and a beard-like part II extending in the longitudinal direction of the tubular receptacle 9 with it received through Springs 12 beastenden tumblers 13 consists. So that the closing mechanism 8 does not rotate in the recess 6, this is widened downwards to form a U-shaped canal 14, the width of which is designed to correspond to the thickness of the beard-like part 11. On the rear wall 7 of the housing 4, a cylindrical pin 15 is provided, the diameter of which is smaller than the inside diameter of the bore in the dial, so that the lock 5 can be inserted with its pin 5 into this bore, with an additional as Anti-rotation-acting projection 16 is provided, which occurs when the pin 15 is inserted into the adjacent bore of the dial. The pin 15 has a bore 17 running eccentrically u its center, into 'elohe the free end 18 of the rotatable lock cylinder 10 protrudes, which is overlapped by the hub 19 of a locking plate 20, its diameter corresponds to the diameter of the pin 15 and which is provided with rounded edges 21 in order to enable the pin 15 of the telephone lock 5 to be better inserted into the associated bore of the dial. Now that the locking mechanism 8 has been inserted into the recess: s housing 4 until the rear part of the beard part 11 rests against the rear wall 7 of the housing 4, the locking member 22 formed from the hub 19 and plate 20; is connected to the The end 18 of the adjustable lock cylinder 10 is connected in such a way that the hub 19 is pushed into the bore 17 of the pin 15 and over the end 18 and then a transverse bore 23 provided in the pin 15 opens the bore 24 of the Hub 19 inserted pin 25 is pressed into a radially extending bore of the end 18 and thus created a positive connection between locking member 22 and lock cylinder 10, so that the locking mechanism with its parts is now rotatably, but immovably received by the housing 4. To the rotary movement of the To limit the lock cylinder 10, a pin 26 is provided on the hub 9, which with the stop surfaces 27,28 of a arranged on the tubular part 9 and in the path of movement d there pin 26 protruding projection 29 cooperates. By rotating the lock cylinder 10 after inserting the pin 15 into the bore of the dial about the longitudinal axis of the lock cylinder, the disk 20 acting as a locking member 22 is rotated until it is shown in the FIG. set locking position is and thereby causes that the pin can no longer be pulled out of the bore of the dial. The opening of the recess 6 is covered towards the front by a cover plate 30 which is provided with a bore 31 for the passage of the radially widened lock cylinder part 32 and which by the inwardly protruding edges 33 of a casing surface 34 of the housing 4 positively encompassing and frictionally retaining fixed sleeve 35 is attached. The design of the telephone lock can also differ from the illustrated embodiment, for example, by designing the housing 4 in such a way that it simultaneously serves to accommodate the springs 12 and tumblers 13 and the rotatable lock cylinder 10, in that, in addition to an axial bearing of the lock cylinder, corresponding radially extending Holes for receiving the tumblers are provided. Patent claims:

1. Device for locking telephones, in which a pin passes through the recess of a dial causing the dialing process and at its free end has a locking member engaging behind the dial, which is coupled to the rotatable lock cylinder of a locking mechanism whose tumblers can be classified via a key and has a projection serving as an anti-twist device, in particular engaging in the adjacent recess of the dial, characterized in that the telephone lock consists on the one hand of a locking mechanism designed as a closed structural unit and on the other hand of a locking mechanism that carries the pin (15) and the projection (16) receiving and injection-molded or cast plastic housing.

2. Apparatus according to claim 1, characterized in that the housing is assigned a locking mechanism (8) which can be coupled to the locking member (22) for other types of locking devices, such as keyhole locks or the like.

3. Device according to one or more of claims 1 and 2, characterized in that the housing (4) has a frontally open, for receiving the locking mechanism (8) certain Aus