DE4140896A1

DE4140896A1 - Coin controlled coupling for use with supermarket trolleys - has key element that is of permanently magnetic material and is released by coin insertion.

Info

Publication number: DE4140896A1
Application number: DE19914140896
Authority: DE
Inventors: Peter Fuchs
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-08
Filing date: 1991-12-12
Publication date: 1993-07-15

Abstract

A coin controlled coupling unit has a housing that receives a key (6) that is normally held in the secured position. The key is produced of a permanently magnetic material and has recess that are engaged by captive ball elements (2) attracted by the magnetic field effect. When a coin is inserted from one end the balls are released allowing the key to be removed. The coin is retained until the key is replaced. ADVANTAGE - Simplified mechanism.

Description

Die Erfindung betrifft eine Vorrichtung, die grundsätzlich den Rahmenkriterien der Vorrichtung:"Münzpfand-Kopplungsmechanik für Handwagen", Patentnummer P 41 36 780.4 vom 08.11.1991 ent spricht, sich jedoch im technischen Aufbau und Funktion von diese maßgeblich unterscheidet.The invention relates to a device that basically the Framework criteria of the device: "coin deposit coupling mechanism für Handwagen ", patent number P 41 36 780.4 from November 8, 1991 ent speaks, but in the technical structure and function of these significantly differentiates.

Diese Unterscheidungsmerkmale sind an Hand eines Ausführungs beispieles in Bezugnahme auf die Zeichnungen näher erläutert. Das Gehäuse der Vorrichtung besteht aus übereinanderliegenden Gehäusesegmentplatten, der Zwischenabstand ist durch die Gehäuse konturen hergestellt und über Befestigungsmittel zur kompletten Einheit verbunden.These distinguishing features are based on an execution example explained in more detail with reference to the drawings. The housing of the device consists of one above the other Housing segment plates, the spacing is through the housing contours made and complete with fasteners Unit connected.

In dieser Bauform ergeben sich vertikal übereinanderliegende Funktionsebenen für Münze, die Ver- und Entriegelungsmechanik sowie den Schlüssel.In this design there are vertically superimposed ones Functional levels for coins, the locking and unlocking mechanism as well as the key.

function

Der aus einem Permanentmagneten hergestellte Schlüssel (6) be findet sich im Gehäuse der Schloßkassette und wird über die in der Gehäuseausnehmung (4) geführten Sperrkonturen, vorzugsweise aus FE-Metall, (1) sicher arretiert - gleichzeitig werden die Sperrkonturen-Münze aus FE-Metall (2) vom Schlüssel angezogen - befinden sich im Bereich der diesbezüglichen Ausnehmungen im Schlüssel (6), geführt in der Gehäuseausnehmung (5). The key ( 6 ) made from a permanent magnet can be found in the housing of the lock cassette and is securely locked in place by the locking contours in the housing recess ( 4 ), preferably made of FE metal ( 1 ) - at the same time the locking contour coin is made of FE Metal ( 2 ) attracted by the key - are located in the area of the relevant recesses in the key ( 6 ), guided in the housing recess ( 5 ).

Bei Einführung einer Münze (7) mit entsprechendem Durchmesser auf welchen die Dimensionen des Systems sowie die Position der Konturen (1)+(2) abgestimmt sind,werden die spiegelbildlich ange ordneten Sperrkonturen-Schlüssel (1) gegen den Widerstand der Rückstellfedern (3) in der Gehäuseausnehmung (4) soweit bewegt, bis der Schlüssel (6) frei wird und aus dem Gehäuse (Fig. I+IV) gezogen werden kann.When a coin ( 7 ) with a corresponding diameter is introduced, on which the dimensions of the system and the position of the contours ( 1 ) + ( 2 ) are matched, the blocking contour keys ( 1 ), which are arranged in mirror image, are turned against the resistance of the return springs ( 3 ) in the housing recess ( 4 ) until the key ( 6 ) is free and can be removed from the housing ( Fig. I + IV).

Bei dieser Positionsänderung des Schlüssels (6) verlieren die Sperrkonturen (2) ihre magnetisch gehaltene Position (Fig. III), bewegen sich durch Schwerkraft oder Federdruck nach unten und sperren die Münze (7) gegen systemwidrige Entnahme der Münze Ausschließlich durch systemkonformen Einschub des Schlüssels (6) ist diese Sperr-Position (Fig. IV) neutralisiert und Münzent nahme gewährleistet. Bei Entnahme der Münze erfolgt die Ver riegelung des Schlüssels (6) durch die Sperrkonturen-Schlüssel (1) bewirkt durch Magnetkraft und/oder Druck der Rückstellfeder (3) - Ausgangsposition ist hergestellt. With this change in the position of the key ( 6 ), the locking contours ( 2 ) lose their magnetically held position ( Fig. III), move downward by gravity or spring pressure and lock the coin ( 7 ) against systematic removal of the coin ( 6 ) this blocking position ( Fig. IV) is neutralized and coin acceptance guaranteed. When the coin is removed, the key ( 6 ) is locked by the locking contour key ( 1 ) by magnetic force and / or pressure of the return spring ( 3 ) - the starting position is established.

Es zeigenShow it

Fig. I Querschnitt Schlüssel-Ebene, Fig. I-cross-section key plane,

Fig. II Querschnitt Münz-Ebene, Fig. II cross-section of coin-operated plane,

Fig. III Position Schlüssel in Kassette, Fig. III key position in the cassette,

Fig. IV Position Münze in Kassette. Fig. IV position coin in cassette.

1 Sperrkontur - Schlüssel
2 Sperrkontur - Münze
3 Rückstellfeder
4 Gehäuseausnehmung als Führung für Sperrkontur-Schlüssel
5 Gehäuseausnehmung als Führung für Sperrkontur-Münze
6 Schlüssel als Permanentmagnet mit Ausnehmungen
7 Münze 1 locking contour - key
2 blocking contour - coin
3 return spring
4 Housing recess as a guide for the locking contour key
5 Housing recess as a guide for the blocking contour coin
6 keys as permanent magnets with recesses
7 coin

Claims

1. Device designed as a coin deposit coupling mechanism in cassette shape, preferably suitable for installation in housing designed as coin deposit systems for shopping trolleys, characterized in that the coupling key ( 6 ) is designed as a permanent magnet via the magnetic field of which the locking contours made of FE metal for keys and Coin ( 1 ) + ( 2 ), which are stored and guided in the housing recesses ( 4 ) + ( 5 ), can be moved according to the intended purpose in such a way that when a coin ( 7 ) is inserted, the key ( 6 ) using the locking contour key ( 1 ), the coin is then mechanically locked via the locking contour coin ( 2 ) - when the key ( 6 ) is inserted, the coin ( 7 ) is unlocked by the magnetic effect of the key ( 6 ) on the Locking contour coin ( 2 ) ( Fig. III) with simultaneous locking of the key ( 6 ) by the locking contour key ( 1 ) caused by magnet and / or spring force.

2. Device according to claim 1, characterized in that the same function is ensured if the locking contours key ( 1 ) and coin ( 2 ) are formed as permanent magnets and the key ( 6 ) is made of ferrous metal.

3. Device according to claim 1 + 2, characterized in that the locking contour key ( 1 ) is preferably cylindrical.

4. Apparatus according to claim 1 + 2, characterized in that the blocking contour coin ( 2 ) is preferably designed as a ball.

5. The device according to claim 1 to 4, characterized in that the functional parts in a housing, with appropriate Recesses and contours, made of firm but deformable Materials (die casting / plastic) can be integrated.

6. The device according to claim 1, characterized in that the magnetic principle of operation of the locking contour coin ( 2 ) can be produced by purely mechanical function equally if the locking contour coin ( 2 ) and the corresponding (non-magnetic) key form-fit one another are coordinated (without graphic representation).