DE2060906C

DE2060906C - Timing device for swimming competitions

Info

Publication number: DE2060906C
Application number: DE19702060906
Authority: DE
Inventors: Francois Evilard; Tosin Peter Biel; Werner Ernst Safnern; Leu (Schweiz)
Original assignee: Omega Louis Brandt and Frere SA
Current assignee: Omega Louis Brandt and Frere SA
Priority date: 1969-12-23
Filing date: 1970-12-10
Publication date: 1973-09-06

Description

bis 2 mm Dicke ist in einer NuI der Einlage 3 elastisch abgestützt, das heißt, die Platte kann sich leicht auf die Wand 1 zu oder von derselben weg verschwenken. Oben greift die Platte 5 in Nuten 6 von zwei seitlichen Haltern 7, die an der Zielwand 1 hefestigt sind.Up to a thickness of 2 mm, the insert 3 is elastic in one groove supported, that is, the plate can easily pivot towards the wall 1 or away from the same. At the top, the plate 5 engages in grooves 6 of two lateral holders 7, which are attached to the target wall 1 are.

Jeder Haller 7 besteht aus einer Montageplatte 8 und hinein Gebergehäusc 9, in dessen Hohlraum 10 sich ein piezoelektrischer Geber 11 befindet. Es handelt sich um einen Biegekiistall. der einseitig auf to einem Block befestigt ist und am frei beweglichen Ende einen stiftförmigen Fühler 12 tragt. Der Fühler 12 ragt durch eine Fiihrungshülse und trägt am äußeren Ende einen Fühlerkopf 13. Der Fühlerkopf 13 wird überspannt von einer weichen, mit dem Gebergehäuse dicht verbundenen Membran 14. Der in die Nut 6 greifende Plattenrand wird durch einen federhelasteten Kopf 15 stets in Berührung mit der Membran 14 gehalten.Each Haller 7 consists of a mounting plate 8 and a Geberehäusc 9 in its cavity 10 a piezoelectric transmitter 11 is located. It deals about a bending ski stall. which is attached to a block on one side and which is freely movable The end of a pin-shaped sensor 12 carries. The feeler 12 protrudes through a guide sleeve and carries on the outer End of a sensor head 13. The sensor head 13 is spanned by a soft one with the encoder housing tightly connected membrane 14. The plate edge engaging in the groove 6 is supported by a spring-loaded Head 15 is kept in contact with membrane 14 at all times.

Die mit dem Geber 11 verbundenen Leiter sind dichtend durch das Gehäuse durchgeführt und stehen mit einer Steuerschaltung in Verbindung, die auf über einer bestimmten Schwelle liegende elektrische Signale anspricht und zum Anhalten der Uhr dient. Der eigentlichen Steuerschaltung, zum Beispiel einem Trigger, kann ein Differenzierkreis oder ein Filter vorgeschaltet sein, wodurch über einer bestimmten Frequenz liegende Signale bevorzugt werden.The conductors connected to the transmitter 11 are passed through the housing in a sealing manner and are available with a control circuit connected to the electrical above a certain threshold Responds to signals and is used to stop the clock. The actual control circuit, for example one Trigger, a differentiating circuit or a filter can be connected upstream, whereby over a certain Frequency signals are preferred.

Unter dem Druck des Kopfes 15 und der au^r die Platte 5 wirkenden Wellen gibt der Geber 11 ein gewisses Grundsignal ab. Die Sehwc der Steuerschaltung wird so eingestellt, daß sie s: uigend über dem Pegel dieses Grundsignals liegt und somit die Schaltung nicht auf dasselbe ansprechen kann. Berührt ein Schwimmer die Platte?, so wird durch dieselbe eine entsprechende Druckänderung an den Geber 11 übertragen, nämlich im allgemeinen vorerst eine Druckabnahme am Geber. Damit erfolgt eine starke und schnelle Änderung des Signals des Gebers, auf welche Änderung die Steuerschaltung anspricht undUnder the pressure of the head 15 and the au ^r the plate 5 acting shafts of the encoder 11 outputs a certain base signal. The sight of the control circuit is set so that it is slightly above the level of this basic signal and thus the circuit cannot respond to the same. If a float touches the plate ?, a corresponding change in pressure is transmitted to the transducer 11 by the same, namely generally initially a pressure decrease at the transducer. This results in a strong and rapid change in the signal from the transmitter, to which change the control circuit responds and

die Uhr anhält.the clock stops.

Die große Einfachheit der Einrichtung liegt darin, daß eine einfache Metallplatte ohne an der Platte selbst angebrachte Meßvorrichtungen verwendet werden kann. Die Platte kann in sehr einfacher Weise in ihre Halter eingesetzt und aus denselben entfernt werden. Eventuelle Störungen können nur von den zwei vorhandenen Gebern herrühren, die über dem Wasserspiegel liegen und L -ner dauernd leicht zugänglich sind und auch leicht ersetzt werden können. Es sind abweichende Ausführungen .möglich. An Stelle von piezoelektrischen Gebern können andere aVtive Geber, zum Beispiel elektromagnetische oder elektrodynamische Geber verwendet werden. Es können jedoch auch kontaktlose passive Geber, zum Beispiel Fcldplatten verwendet werden. Die Geber können an etwas anderen Stellen -'.ngeordnet sein, und es können mehr als zwei Geber \orhanden sein. Es ist jedoch auch denkbar, mit einem einzigen Geber auszukommen. The great simplicity of the device lies in the fact that a simple metal plate can be used without measuring devices attached to the plate itself. The plate can be inserted into and removed from its holder in a very simple manner. Potential interference can only come from the two existing sensors that are above the water level and L are frequently readily available -ner and can also be easily replaced. Different versions are possible. Instead of piezoelectric sensors, other active sensors, for example electromagnetic or electrodynamic sensors, can be used. However, it is also possible to use contactless passive transmitters, for example Fcldplatten. The donors can be arranged in slightly different places, and there can be more than two donors. However, it is also conceivable to get by with a single encoder.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

a locally deformable plate or mat, in which a system of elements responding to local prints is accommodated.

1. Timing device for Wettseh .vimmen, These elements are either with yeast-5 um hoses on one wall of the swimming pool, in which a pneumatic residue Flaue, which, when touched, creates an overpressure that has an electric effect (French cal signal to control a clock generated patent specification 1449U93), or to print pressure, characterized in that sensitive contact cables in which at local the plate (5) is rigid and you come into contact with at least one pressure conductor and thus one Contactless electromechanical transmitter (11) to close the control circuit (Swiss patent is assigned to it by means of a subsequent document 476 334).

th control circuit which has another known timing device by the beat at another

Touching of the plate (5) by the competitor: one that is immovable relative to the swimming pool

resulting, relatively high-frequency vibration electrode, whereas the other, movable against

gene in the plate (5) or a movement of the 15 orderly, in the form of wire ropes in front of the fixed

whole plate (5). is clamped into an electrical signal around the electrode. To train the timekeepers

wandeli. switch, this facility requires a switch

2. Hi, ichtung according to claim 1, marked reduction of the resistance between the two electrical components by at least one active encoder. E.g. troden below a predetermined value (schweizericinen piezoelectric, electromagnetic 20 see patent 371 285).

or electrod \ namic encoder (II). All of these versions are relative to

3. Execution according to claim 1 or 2, of course and leuer and require a constant on characterized in that the rigid plate (5) manoeuvrable maintenance, if disturbances are held with certainty in places, which should be excluded at certain points. In particular, the pneumatic transducers (II) between the plate and a Malian system have further disadvantages.
Holding part! (9) are arranged. Hs is the aim of the present invention, a

4. A device according to claim 3, characterized in that the plate (5) is movable at the bottom, which is a maxi-bearing with a minimum of maintenance and at the top, movable on both sides, offers functional reliability and faulty connection holding parts _K 8,9j L.cift. whereby at each 3 ° gene is practically completely excluded. It is thereby a holder part of a transmitter (1 Ij is arranged. Characterized that the plate is rigid and its r.iin-

5. Execution according to Ai. Claim 4, thereby at least one contactless clcktro-mechanical transmitter indicates that the transmitter (11) is assigned a sensor, which by means of a downstream (12) and that the plate (5) is free of play between the control circuit caused by the impact when looking at it an elastic head (15) and the guide 35 stir the plate created by the competitor's head (13) takes effect. the, relatively high-frequency vibrations in the

6. Device according to claim 5, characterized GE plate or a movement of the whole plate, in a indicates that the elastic head (15) converts to an electrical signal. Preferably, the side against which the plate is provided can be arranged with an active transmitter which does not exert any bed pressure when the swimmer bumps into it. 4 ° triebsstrdm required, z. B. a piczo-electronic

7. Device according to claim 4, characterized thereby. Also characterized by electromagnetic or electrodynamics, that the plate (5) below and to the side see transducers are suitable signal transmitters. The invention can be raised engages in retaining grooves (6). dung is based on the thought, no longer one

8. Device according to one of claims 1 local deformation of a plate or a mat as up to 7, characterized in that the encoder 45 is the basis for the generation of the signal (11) in a tight housing (9) housed gene, but by the impact when touched and is connected to a sensor (12), the reciner emerging from the plate by the competitor Sealing membrane (14) is spanned, gelatively high-frequency vibrations in the plate gene which the plate (5) rests. b / w. to evaluate a movement of the whole plate.

9. Device according to one of claims 1 5 ° Hs is therefore not a soft, easily vcrformbis S, characterized in that an electric bare plate, / .. B. made of plastic, but a rigid see control circuit with response threshold ver plate , preferably a metal plate, is used. It is applied that over the swell can also be advantageous to differentiate the signals generated by the signal generator or signals given by the static bias voltage, around the lies. 55 higher frequencies when striking the plate

10. Device according to one of the claims! to be emphasized compared to the low interference frequencies as a result of WeI-up to 9, characterized by a circuit for walking in the swimming pool.
Differentiating the signal and a control circuit responsive to the diffc The following is an embodiment of the limited K signal. in accordance with the design on the basis of the

60 explained in more detail.

Fig. 1 is a front view of the plate;

F i g. 2 is a vertical section through the plate, and

The present invention relates to a timing device. 3 is a horizontal section through a lateral

Equipment for swimming competitions, with a holder for the plate on a wall.

of the swimming pool fixed plate, at the 65 of which is on the target wall 1 of a swimming pool

Touching an electrical signal to control a lower holding box 2 with an elastic input

Clock is generated. layer 3 attached. One on the dash-dotted line

Known devices of this type all start from the metal plate 5 of FIG. 1 perforated by the surfaces 4