Electrical powerway for furniture panel

• US 5,607,317 A
• Filed: 12/23/1994
• Issued: 03/04/1997
• Est. Priority Date: 12/23/1994
• Status: Expired due to Term

• Current Assignee: Haworth Incorporated
• Original Assignee: Haworth Incorporated
• Inventors: King, Steven J., Benscoter, Richard D., Emery, David E.
• Primary Examiner(s): Paumen, Gary F.
• Application Number:
  US08/363,750
• Time in Patent Office: 802 Days
• Field of Search: 439/211, 439/215
• US Class Current: 439/215
• CPC Class Codes: H02G 3/00 Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles installations of bus-bars H02G5/00; overhead installations H02G7/00; installations in or on the ground H02G9/00
• CPC Class Codes: H02G 3/288 in modular walls, e.g. wall panels

Abstract

A modular electrical system for mounting on furniture components such as wall panels. The system includes modules which each include at least one power block provides increased electrical circuit capacity, which capacity in the preferred embodiment is at least six electrical circuits. The power block provides different groupings of circuits which are externally accessible, such as for connection to removable receptacle units, on opposite sides thereof. Flexible electrical connectors are provided for connection to and transmitting electrical power between power blocks of adjacent panels. Each connector transmits only one grouping of electrical circuits therethrough, whereby two such connectors are normally utilized for connection between adjacent power blocks of adjacent panels to transmit all electrical circuits therebetween. The individual flexible electrical connectors can be used for transmitting electrical energy into branching panels, which branching panels may be provided with only the selected grouping of circuits.

Claims

1. In an interior space-dividing wall system including at least first, second and third upright panels respectively having first, second and third upright end edges disposed in close proximity to one another, and first, second and third electrical power blocks mounted respectively on said first, second and third panels, a first electrical connector joined between said first and second power blocks for transmitting electrical energy therebetween, and a second electrical connector joined between said first and third power blocks for transmitting electrical energy therebetween, each said electrical connector having connector portions adjacent opposite ends thereof which create a releasible plug-type engagement with connector ports on the respective power blocks, said first electrical connector having the connector portion at one end thereof engaged with a first said connector portion on said first power block, the connector port at the other end of said first electrical connector being engaged with a said connector port on said second power block, said second electrical connector having a connector portion at one end thereof engaged with a second said connector port on said first power block, and a connector portion on the other end of said second electrical connector being engaged with a said connector port on said third power block, comprising the improvement wherein:

said first power block includes a plurality of electrical conductors therein for defining a plurality of electrical circuits, said first connector port associated with said first power block accessing only a first subset of said plurality of circuits, said second connector port associated with said first power block accessing only a second subset of said plurality of circuits, each of said first and second subsets including a number of circuits which is at least two but less than said plurality, and each said subset including at least one circuit which is distinct from all of the circuits of the other subset;

said first and second electrical connectors each containing thereon a plurality of electrical conductors which define a predetermined number of circuits equal to the respective subset, said first electrical connector connecting only said first subset of said plurality of circuits to said second power block, said second electrical connector connecting only said second subset of said plurality of circuits to said third power block.

2. A system according to claim 1, wherein said second power block includes therein a plurality of conductors which define a select number of circuits equal to only said first subset.

3. A system according to claim 2, wherein said second power block has two said electrical connector ports, each of which is engageable with said electrical connector.

4. A system according to claim 2, including a fourth panel provided with a fourth upright end edge which is disposed in close proximity to said first upright end edge, a fourth electrical power block mounted on said fourth panel, said fourth power block being substantially identical to said first power block in that it defines thereon first and second connector ports which each respectively access a different subset of the electrical circuits which are defined within said fourth power block, said third power block being substantially identical to said second power block, a third electrical connector joined between said second and fourth power blocks, and a fourth electrical connector joined between said third and fourth power blocks, each of said third and fourth electrical connectors being joined to the respective power blocks by releasable plug type electrical connections.

5. A wall system according to claim 1, wherein said first panel includes a pair of said first power blocks mounted thereon in longitudinally spaced relation and interconnected by a plurality of electrical conductors so that each of said first power blocks defines the same plurality of circuits therein.

6. A wall system according to claim 1, wherein said first power block has a pair of third electrical connector ports provided thereon, said pair of third connector ports being disposed on opposite sides of and accessible from opposite sides of said first power block, said third connector ports being substantially identical and each being adapted to create a releasable plug-type electrical engagement with a separable output unit which defines therein at least one three-hole electrical socket, the third connector port on one side of said first power block accessing solely the circuits of said first subset, the third connector port on the other side of said first power block accessing solely the circuits of said second subset.

7. A wall system according to claim 1, including a fourth panel serially connected to said first panel and defining thereon a fourth power block which is electrically interconnected to said first power block and defines therein said plurality of circuits, and an electrical feed assembly for connecting said plurality of electrical circuits into an electrical system which includes said first and fourth power blocks, said electrical feed assembly including an external raceway containing a plurality of conductors which define said plurality of circuits and which projects into a panel raceway containing one of said first and fourth power blocks, said external raceway terminating in a pair of connectors which each terminate in a connector portion which creates a plug-type electrical engagement with one of said first and fourth power blocks, each last-mentioned connector and the respective connector portion accessing solely one of said subsets of said plurality of circuits so that the totality of said plurality of circuits are connected to the respective power block only when both of said last-mentioned connectors are engaged therewith.

8. A system according to claim 1, wherein all of the circuits of one said subset are distinct from all of the circuits of the other subset.

9. An interior space-dividing wall system, comprising:

first and second upright space-dividing wall panels horizontally serially joined together;

first and second electrical power blocks respectively mounted on said first and second panels, said power blocks being disposed generally between vertical planes which define opposite side surfaces of the respective panels;

first and second electrical connector units joined between said first and second power blocks for transmitting electrical energy therebetween, each said connector unit having a releasable pluglike electrical connection with each of said first and second power blocks;

at least one electrical output unit for releasable pluglike engagement with one of said power blocks, said output unit defining at least one three-hole electrical socket for accommodating a two or three prong electrical plug;

each said power block including a set of electrically conductive members which define a plurality of electrical circuits;

said set of conductive members including first and second subsets of conductive members which respectively define first and second groupings of at least two electrical circuits each, at least one circuit of each grouping being distinct from the circuits of the other grouping;

said set of conductive members also including at least one ground conductor;

each said power block including a pair of substantially identical first electrical ports provided on an outer end of said power block and each adapted for pluglike engagement with one end of a said electrical connector unit;

each said power block including a pair of substantially identical second electrical ports each adapted for pluglike engagement with one of said output units, said second electrical ports as defining said pair being provided on and accessible from opposite sides of said power block;

one of said first ports and one of said second ports each including a plurality of electrical terminals which are respectively connected to the conductors of said first subset so that said one first port and said one second port each access only said first grouping of circuits;

the other said first port and the other said second port each including a plurality of electrical terminals which are respectively connected to the conductors of said second subset so that said other first port and said other second port each access only said second grouping of circuits;

said first electrical connector unit having one end thereof engaged with one of said first ports and said second electrical connector unit having one end thereof engaged with the other of said first ports, said first and second electrical connector units respectively connecting said first and second grouping of circuits between said first and second power blocks.

10. A wall system according to claim 9, wherein each said power block includes a third electrical port for permitting an electrical power in-feed assembly to be connected to said power block by a plug-type engagement for connecting said plurality of electrical circuits to said power block, said third electrical port having a plurality of electrical terminals which are respectively connected to all of the conductive members of said set so as to access all of the circuits of both groupings.

11. A wall system according to claim 10, wherein said third port includes two sets of terminals with the terminals of one set being connected only to the circuits of one grouping and the terminals of the other set being connected only to the circuits of the other grouping.

12. A wall system according to claim 11, wherein said third port is provided at an outer end of the respective power block and faces in an endwise direction, and wherein the pair of first ports are disposed closely adjacent and slightly inwardly of said third port, said first ports facing sidewardly of said power block in opposite outward directions.

13. A wall system according to claim 10, wherein each said power block has a pair of substantially identical fourth electrical ports which are provided adjacent opposite sides of the respective power block and are each adapted for pluglike engagement with one part of a two-part electrical feed supply assembly, one said fourth port having terminals which are coupled to and access solely said one grouping of circuits, and the other of said fourth ports having terminals which are connected to and access solely the other grouping of said circuits.

14. A wall system according to claim 9, wherein each said power block has a pair of substantially identical third electrical ports which are provided adjacent opposite sides of the respective power block and are each adapted for pluglike engagement with one part of a two-part electrical feed supply assembly, one said third port having terminals which are coupled to and access solely said one grouping of circuits, and the other of said third ports having terminals which are connected to and access solely the other grouping of said circuits.

15. A wall system according to claim 14, including a power feed assembly connectable to one of said power blocks for connecting said plurality of electrical circuits thereto, said power feed assembly having an elongate electrical conduit providing a plurality of conductive wires therein for defining said plurality of circuits, one end of said conduit being adapted for connection to an electrical power source, said conduit at its other end being connected to a mounting block which secures to said panel, and a pair of flexible and elongated power transmitting parts cantilevered from said mounting block and each accessing therethrough only one of said groupings of electrical circuits, each said power transmitting part terminating in electrical terminals which creates a pluglike engagement with one of said third ports for connecting the electrical circuits of the respective grouping to the power block.

16. A wall system according to claim 9, wherein said first and second panels respectively mount thereon third and fourth power blocks which are longitudinally spaced from the respective first and second power blocks, and first and second multi-conductor conduits respectively provided on said first and second panels for electrically connecting the two power blocks of the respective panel for connecting said plurality of circuits therebetween, said third and fourth power blocks being substantially identical to the respective first and second power blocks.

17. In an upright space-dividing interior wall panel having a raceway extending longitudinally thereof between opposite vertically-extending end edges of the panel, and a pair of electrical power blocks mounted on said panel within said raceway in longitudinally spaced relation, the pair of power block being joined by a multi-conductor conduit for transmitting electrical energy between said pair of power blocks, the improvement wherein each said power block comprises:

a housing defining an interior chamber in which a plurality of electrically conductive members are supportingly positioned in spaced relation to one another, said plurality of conductive members defining first and second subsets of different conductors which respectively define first and second groupings of electrical circuits, each said grouping defining at least two electrical circuits, the two electrical circuits of one said grouping being distinct from the two electrical circuits of the other grouping;

each said power block including a pair of substantially identical first electrical connector ports provided adjacent an outer end of said power block and each adapted for pluglike engagement with one end of an electrical connector unit, each said first port accessing only a respectively different one of said groupings of circuits; and

each said power block including a pair of substantially identical second electrical connector ports each adapted for pluglike engagement with a separable output unit, said second electrical connector ports as defining said pair being provided on and accessible from opposite sides of said power block, each said second port accessing only a respectively different one of said groupings of circuits.

18. A wall panel according to claim 17, wherein each said power block includes a third electrical connector port for permitting an electrical power in-feed assembly to be connected to said power block by a plug-type engagement for connecting all of said electrical circuits to said power block.

19. An interior space-dividing wall system, comprising;

first and second upright space-dividing wall panels horizontally serially joined together;

first and second electrical power blocks respectively mounted on said first and second panels, said power blocks being disposed generally between vertical planes which define opposite side surfaces of the panels;

at least one electrical connector unit joined between said first and second power blocks for transmitting electrical energy therebetween, said connector unit having a releasable pluglike electrical connection with each of said first and second power blocks;

each said power block including a set of electrically conductive members which define a plurality of electrical circuits;

said set of conductive members including first and second subsets of conductive members which respectively define first and second groupings of at least two electrical circuits each, at least one circuit of each grouping being distinct from the circuits of the other grouping;

said set of conductive members also including at least one ground conductor;

each said power block including a first electrical port provided adjacent an outer end of said power block for pluglike engagement with one end of said electrical connector unit;

each said power block including a pair of substantially identical second electrical ports each adapted for pluglike engagement with an output unit, said second electrical ports as defining said pair being provided on and accessible from opposite sides of said power block so that one of said second ports is accessible only from one side of said power block and the other said second port is accessible only from the other side of said power block;

said one second port including a plurality of electrical terminals which are respectively connected to the conductors of only said first subset so that said one second port can access only said first grouping of circuits;

said other second port including a plurality of electrical terminals which are respectively connected to the conductors of only said second subset so that said other second port can access only said second grouping of circuits; and

at least one receptacle-type electrical output unit for releasable pluglike engagement with one of the second ports of one said power block, said output unit defining at least one three-hole electrical receptacle for accommodating a two or three prong electrical plug;

whereby said first grouping of circuits is accessible for connection to a receptacle-type outlet unit only from said one side of said power block, and wherein said second grouping of circuits is accessible for connection to a receptacle-type outlet unit only from the other side of said power block.

20. A wall system according to claim 19, wherein each said power block includes a third electrical port for permitting an electrical power in-feed assembly to be connected to said power block by a plug-type engagement for connecting said plurality of electrical circuits to said power block, said third electrical port having a plurality of electrical terminals which are respectively connected to all of the conductive members of said set so as to access all of the circuits of both groupings.

21. A wall system according to claim 19, wherein each said power block has a pair of substantially identical said first electrical ports which are provided adjacent opposite sides of the respective power block and are each adapted for pluglike engagement with one end of a said electrical connector unit.

22. A wall system according to claim 19, wherein each said power block has a pair of substantially identical third electrical ports which are provided adjacent opposite sides of the respective power block and are each adapted for pluglike engagement with one part of a two-part electrical feed supply assembly, one said third port having terminals which are coupled to and access solely said one grouping of circuits, and the other of said third ports having terminals which are connected to and access solely the other grouping of said circuits.

23. A wall system according to claim 19, wherein said first and second panels respectively mount thereon third and fourth power blocks which are longitudinally spaced from the respective first and second power blocks, and first and second multi-conductor conduits respectively provided on said first and second panels for electrically connecting the two power blocks of the respective panel for connecting said plurality of circuits therebetween, said third and fourth power blocks being substantially identical to the respective first and second power blocks.

24. A wall system according to claim 19, wherein the one distinct circuit of one grouping is accessible for connection to an output unit on only one side of the respective power block, and wherein the one distinct circuit of the other grouping is accessible for connection to an output unit on only the other side of the respective power block.