Arrangement in conductor track

Details Arrangement in conductor track Arrangement in conductor track

2000-04-14

2001-08-14

Dinkins, Anthony (Department: 2831)

Electricity: conductors and insulators

Conduits, cables or conductors

Plural duct

C174S068100, C174S09900B, C052S220300, C248S068100, C439S110000

Reexamination Certificate

active

06274817

ABSTRACT:

BACKGROUND OF THE INVENTION AND DESCRIPTION OF THE RELATED ART
The invention relates to an arrangement in a conductor track, said conductor track comprising a connection groove extending in the longitudinal direction of the track for connecting devices to the conductor track by means of an adapter, current conductors arranged in the connection groove in the longitudinal direction thereof for supplying power by means of the adapter to the devices connected to the conductor track, and at least one signal conductor arranged in the conductor track for supplying by means of the adapter a control signal, such as a bus control signal, to the device connected to the conductor track.
The above track systems are currently used fairly commonly in various spaces for connecting lighting devices, electrical appliances and other similar devices to a power supply.
In prior art solutions it has not been possible, in general, to use device-specific control by a wired control circuit except by means of power current conductors of the track. In this case, the use of the power current conductors for supplying power is limited as regards said conductors. To build a control circuit by using a control cable is difficult or almost impossible in such a case.
To eliminate the above problems, a solution is found in which signal conductors are arranged onto the outer surface of a conductor track for supplying a control signal, such as a bus control signal, to a device, such as a lighting device, connected to the conductor track. This solution is disclosed in Finnish patent 101,758 (U.S. Pat. No 5,869,786).
The solution in accordance with Finnish patent 101,758 works well in practice. However, in certain situations esthetic values have posed a problem, i.e. in some cases persons in charge of interior design have found it difficult to accept a track solution where the signal conductors are visible, for instance. As regards electricity, the disposition of the signal conductors is a difficult electrical thing, since the power current conductors of the track easily cause interference to the signal conductors.
SUMMARY OF THE INVENTION
The object of the invention is to provide an arrangement by means of which the drawbacks of the prior art solutions can be eliminated. This is achieved with an arrangement in accordance with the invention, which is characterized in that at least one signal conductor is arranged in the connection groove of the conductor track and that a partition wall of electrically conductive material is arranged between the signal conductor and the current conductor.
The most significant advantage of the invention is that the control signal conductors can be fitted into place when manufacturing the conductor track. Changing the positions of the lamps or other devices connected to the conductor track system, or increasing or decreasing the number of the devices will not cause problems, since there are no separate signal conductors. A further advantage of the system is its simple structure, due to which the manufacturing costs are low. Yet another advantage is that the arrangement of the invention does not involve any considerable changes in the conductor track, in other words, the conductor track is still a compact integral part which is easy and quick to mount. Thus, with the arrangement of the invention, it is possible to achieve all the advantages that are achieved with the solution of Finnish patent 101,758, for instance. A further advantage of the arrangement of the invention is that the signal conductors can be mounted to be fully invisible. Yet another advantage is that, when necessary, it can be used in conjunction with the solution of Finnish patent 101,758.


REFERENCES:
patent: 4121879 (1978-10-01), Olsen
patent: 4776809 (1988-10-01), Hall
patent: 4919625 (1990-04-01), Coutre
patent: 5869786 (1999-02-01), Jaakkola et al.
patent: 6033097 (2000-03-01), Harwood
patent: 6059582 (2000-05-01), Tsai
patent: 6079992 (2000-06-01), Kuchar et al.

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