Raceway system for modular wall panels

• US 4,918,886 A
• Filed: 05/31/1989
• Issued: 04/24/1990
• Est. Priority Date: 05/31/1989
• Status: Expired due to Term

• Current Assignee: Kimball International Incorporated (HNI Corporation)
• Original Assignee: Harpers Co.
• Inventors: Schmid, Daniel, Benoit, Fredrick C., Wisniewski, Joseph M., Cardenas, Ruben
• Primary Examiner(s): Scherbel, David A.
• Assistant Examiner(s): Smith, Creighton
• Application Number:
  US07/359,287
• Time in Patent Office: 328 Days
• Field of Search: 52/126.1, 52/126.2, 52/126.6, 52/220, 52/221, 52/239, 52/240, 52/241, 52/242, 52/287, 52/288, 52/290, 174/48, 174/49
• US Class Current: 174/497
• CPC Class Codes: E04B 2/7425 Details of connection of panels E04B2/7427 takes precedence
• CPC Class Codes: E04B 2/7427 with adjustable angular connection of panels
• CPC Class Codes: E04B 2002/7488 Details of wiring
• CPC Class Codes: E04B 2002/749 Partitions with screw-type jacks
• CPC Class Codes: E04F 17/08 for receiving utility lines, e.g. cables, pipes covers giving access to the ducts or channels, covers of inspection holes E04F19/08
• CPC Class Codes: H02G 3/288 in modular walls, e.g. wall panels

Abstract

A modular room divider panel includes a raceway along its lower edge which contains and shields one or more multi-wire power harnesses that are protected from unauthorized access by lockable raceway cover plates. The harness comprises a pair of connector blocks, each formed with a pair outwardly endwise facing electrical connector receptacles connected to opposite ends of a bundled plurality of individual and individually insulated conductor wires. A medial web of the raceway frame has a central aperture through which an intermediate portion of the bundled conductor wires pass between opposite sides of the web and a pair of slots at opposite ends of the central aperture which seat the connector blocks such that the pair of receptacles of a connector blocks are disposed on opposite sides of the web. To accommodate a second harness, the medial web may be formed with another pair of openings spaced such that the pair of harnesses are mounted in overlapping or staggered relationship. The opposite side pair of raceway covers and corresponding parts of the raceway frame incorporate spring loaded locks which are actuatable only by means of an auxiliary tool which is insertible through an opening in the raceway cover.

Claims

1. In a wall panel of substantially rectangular configuration comprising a rigid frame having a parallel pair of vertical frame members at the opposite side edges of said panel, a horizontally disposed bottom frame member, and a raceway for electrical power wires connected to the bottom of the bottom frame member, the improvement comprising:

a raceway frame for said raceway secured to and extending along said bottom frame member;

a horizontally elongate substantially rectangular raceway cover of a horizontal length substantially equivalent to the overall width of said panel and of an area to substantially fully enclose a side of said raceway;

detachably engageable means, comprising cooperating portions on a lower horizontal edge of said cover and on a lower portion of said raceway frame, for detachably securing said lower edge of said cover to said raceway frame in a manner to prevent displacement of said cover away from said raceway frame when an upper horizontal edge of said cover is locked to said raceway frame; and

lock means from locking a portion of said upper edge of said cover to said raceway frame in a manner to prevent displacement of said upper edge of said cover away from said raceway frame otherwise then by actuation of said lock means by an auxiliary tool.

2. The improvement of claim 1 wherein:

said lock means comprises a stop means, comprising mutually abutting parts of said cover and said panel, to prevent longitudinal displacement of said cover on said raceway frame when said cover is in a closed condition closing a side of said raceway.

3. The improvement of claim 2 wherein:

said mutually abutting parts comprise a pair of stop notches at the upper corners of said cover.

4. The improvement of claim 1 wherein:

said lock means comprises a stop means, comprising mutually abutting parts on said cover and said raceway frame, to prevent pivotal displacement of said upper edge of said cover away from said raceway frame when said cover is in a closed condition closing a side of said raceway.

5. The improvement of claim 4 wherein:

said mutually abutting parts comprise a lock point yieldably mounted on a flange of said raceway frame and an aperture in a top flange of said cover,

said lock point normally penetrating said aperture to prevent pivotal displacement of said cover away from said raceway frame when said cover is in a closed condition closing a side of said raceway;

said bottom frame member of said panel being formed with a downwardly projecting flange disposed to obstruct access to said lock point to prevent withdrawal of said lock point from said aperture otherwise then by actuation of said lock point by an auxiliary tool.

6. The improvement of claim 4 wherein:

said mutually abutting parts comprise a detent on a flange of said raceway frame and a spring hook carried on an inside face of said cover, said spring hook having an end normally confronting an inside edge of said detent to prevent pivotal displacement of said cover away from said raceway frame when said cover is in a closed condition closing a side of said raceway.

7. The improvement of claim 6 wherein:

said cover is formed with an opening in the vicinity of said spring hook to permit access into said raceway for insertion of an auxiliary tool into operative alignment with said spring hook,

whereby said end of said hook can be displace by said tool out of interfering alignment with said detent to permit pivotal displacement of said cover away from said raceway frame.

8. The improvement of claim 4 wherein:

said lock point comprises a free end of a leaf spring having an opposite end portion affixed to the underside of said flange of said raceway frame,

said leaf spring having an intermediate portion between said ends of said leaf spring that is offset away from said flange of said raceway frame to define a clearance space,

said cover being formed with an access opening in alignment with said clearance space to permit insertion of an auxiliary tool for withdrawing said lock point out of locking engagement with said aperture of said top flange of said cover.

9. The improvement of claim 4 wherein:

said lock point and said top flange of said cover have cooperating cam engagement means for depressing said lock point into said aperture of said top flange of said cover upon mutual engagement therebetween during pivotal movement of said cover towards said raceway frame as said cover is moved to a closed condition closing a side of said raceway.

10. The improvement of claim 6 wherein:

said spring hook on said inside face of said cover and an edge of said flange of said raceway frame have cam engagement means for depressing said spring hook during pivotal movement of said cover towards said raceway frame when said cover is being moved to a closed condition closing a side of raceway.

11. A wall panel comprising:

a substantially rectangular panel frame having a bottom frame member;

an elongate raceway frame mounted against the underside of said bottom frame member to extend horizontally therealong,

said raceway frame having a substantially coextensive longitudinally extending medial web,

said raceway frame having, symmetrically disposed on opposite sides of said web, upper and lower portions in parallelism to said web and spaced laterally sidewardly away from said web;

a pair of substantially identical horizontally elongate substantially rectangular raceway covers of a horizontal length substantially equivalent to the overall width of said panel and of an area to substantially fully enclose a side of said raceway frame;

detachably engageable means, comprising cooperating portions of a lower horizontal edge of each of said covers and of said lower portion of said raceway frame on a corresponding side of said web, for detachably securing said lower edge of said cover to said raceway frame in a manner to prevent displacement of said cover away from said raceway frame when an upper horizontal edge of said cover is locked to said raceway frame on a corresponding side of said web; and

lock means for locking a portion of said upper edge of each of said covers to a corresponding side of said raceway frame in a manner to prevent displacement of said upper edge of said cover away from said raceway frame otherwise then by actuation of said lock means by an auxiliary tool.

12. A wall panel as in claim 11 wherein:

said panel frame comprises a parallel pair of vertical frame members at the opposite side edges of said panel;

a spaced apart pair of support foot means extending downwardly from said panel at said opposite side frame members for supporting said panel in an upright position;

said raceway frame having a length substantially equivalent to the clear space between said pair of support foot means;

said lock means for each of said covers comprising a stop means, including mutually abutting parts of each of said covers and said panels, to prevent longitudinal displacement of said cover on said raceway frame when said cover is in a closed condition closing a side of said raceway.

13. A panel as in claim 12 wherein:

said mutually abutting parts comprise a pair of stop notches at the upper corners of each said cover and a pair of horizontally disposed brackets at opposite ends of said underside of said bottom frame member,

each of said brackets having an inside face comprising one of said mutually abutting parts.

14. A wall panel as in claim 11 in which:

said upper portion of said raceway frame, on each side of said web, comprises a longitudinally extending auxiliary flange and an upper edge of each said cover comprises a longitudinally extending flange adapted to overlie said auxiliary flange when said cover is in a fully closed condition,

each of said covers having a pair of said lock means for locking a portion of said upper edge of each said cover to a corresponding side of said raceway frame,

each said lock means comprising apertures through said auxiliary flange and through said flange along said upper edge of said cover, said apertures being disposed in registration with one another when said cover is in a closed condition;

said lock means further comprising a leaf spring having one end portion affixed to the underside of said auxiliary flange of said raceway frame and having an opposite end portion mounting a lock point positioned for normally penetrating said registered apertures to prevent pivotal displacement of said cover away from said raceway frame when said covers are in a closed condition closing a side of said raceway;

said leaf spring having an intermediate portion between said ends of said leaf spring that is offset away from said flange of said raceway frame to define a clearance space,

said cover being formed an with access opening in alignment with said clearance space to permit insertion of an auxiliary tool for withdrawing said lock point out of locking engagement with said registered apertures to permit pivotal displacement of said cover away from said raceway frame.

15. A wall panel as in claim 11 in which:

said upper portion of said raceway frame, on each side of said web, comprises a longitudinally extending auxiliary flange and each of said covers comprises a longitudinally extending upper edge flange adapted to overlie said auxiliary flange when said cover is in a closed condition closing a side of said raceway;

each said cover having a pair of said lock means,

each said lock means comprising a detent on said auxiliary flange and a spring hook mounted on the inside of said cover;

said spring hook having an end normally confronting an inside edge of said detent to prevent pivotal displacement of said cover away from said raceway frame when said cover is in a closed condition closing a side of said raceway;

each said cover being formed with an opening in the vicinity of said spring hook to permit access into said raceway for insertion of an auxiliary tool into operative alignment with said spring hook,

whereby said end of said hook can be displaced by said tool out of interfering alignment with said detent to permit pivotal displacement of said cover away from said raceway frame.

16. Wall panel having an electrical power raceway system along its lower edge enclosing at least one multi-wire power harness, said panel comprising:

an elongate raceway frame secured to the lower edge of said panel, said raceway frame having a substantially coextensive medial web extending longitudinally thereof,

said web being formed between its opposite ends with an aperture therethrough affording a passage from one side to the other side of said web for conductor wires of an electrical power harness,

said web also being formed with a pair of notches therethrough positioned beyond opposite ends of said aperture;

a multi-wire power harness comprising a pair of connector blocks at opposite ends of a bundled plurality of individual, individually insulated conductor wires,

each of said connector blocks being formed with a pair of electrical connector receptacles accessible through an endwise outwardly facing end thereof;

each said connector block and each said notch of said web having coacting means for seating a corresponding connector block in a manner that each of said pair of receptacles is positioned on opposite sides of said web,

at least some of said bundled conductor wires extending through said aperture to pass from one side to the other side of said web to be connected at opposite ends to an inwardly facing end of said connector; and

a pair of substantially rectangular covers connected to opposite sides of said raceway frame to substantially fully enclose the opposite sides of said raceway frame,

at least one of said covers being formed with a window therethrough located in a position for accessing one of said receptacles of one of said connector blocks of said harness through said window.

17. A panel as in claim 16 in which:

one of said plurality of said conductor wires is a ground wire,

said ground wire having an end trained out of said bundled plurality of wires and electrically connected to said raceway frame,

said raceway frame being made of an electrically conductive earth-groundable material.

18. A panel as in claim 16 in which:

said coacting means of each said connector block and each said notch comprises a slot formed in said end-wise outwardly facing end of said connector block and an edge of said notch that is receivable within said slot,

said slot being oriented in a manner that each of said pair of receptacles is positioned on opposite sides of said web.

19. A panel as in claim 16 in which:

each of said covers is detachably connected to said raceway frame; and

said panel has a lock means at each of the opposite sides of said panel to prevent displacement of the corresponding one of said covers away from said raceway frame otherwise then by actuation of said lock means by an auxiliary tool.

20. A panel as in claim 16 further comprising:

a jumper harness comprising a pair of electrical connector blocks at opposite ends of a bundled plurality of individual, individually insulated conductor wires,

each said jumper connector blocks having an endmost face adapted for mating electrical connection to one of said receptacles of one of said connector blocks of said power harness,

whereby said power harness of said panel can be electrically connected to an electrically conductive harness of an adjacent panel.

21. A wall panel having an electrical power raceway system along its lower edge, said panel comprising:

an elongate raceway frame secured to the lower edge of said panel, said raceway frame having a substantially coextensive medial web extending longitudinally thereof,

said web being formed between its opposite ends with an aperture therethrough affording a passage from one side to the other side of said web for conductor wires of an electrical power harness;

said web having a pair of first notches therethrough positioned beyond opposite ends of said aperture,

said web also having a pair of second notches therethrough positioned beyond opposite ends of said aperture such that one of said first notches and one of said second notches is at an opposite end of said aperture from the others of said first and second notches;

first and second multi-wire powerharnesses each comprising a pair of connector blocks at opposite ends of a bundled plurality of individual, individually insulated conductor wires,

each of said connector blocks being formed with a pair of electrical connector receptacles accessible through an endwise outwardly facing end thereof,

each said connector block and each said notch of said web having coacting means for seating a connector block within a notch in a manner that each of said pair of receptacles is positioned on opposite sides of said web,

at least some of said bundled conductor wires of each said harness extending through said aperture to pass from one side to the other side of said web to be connected at opposite ends of said at least some conductor wires to an inwardly facing end of the corresponding ones of said connector blocks;

one of said pair of connector blocks of said first harness being seated in one of said first notches beyond one end of said aperture while the other of said pair of connector blocks of said first harness is seated in one of said pair of second notches beyond the opposite end of said aperture;

one of said connector blocks of said second power harness being seated in the remaining one of said pair of first notches beyond one end of said aperture while the other of said pair of connector blocks of said second harness is seated within one of said pair of second notches beyond the opposite end of said aperture;

whereby said first and second power harnesses are mounted on said raceway frame in overlapping staggered relationship with each of said power harnesses having a connector block positioned intermediate the pair of connector blocks of the other of said power harnesses.

22. A panel as in claim 21 further comprising:

a pair of substantially rectangular covers connected to opposite sides of said raceway frame to substantially fully enclose the opposite sides of said raceway frame,

at least one of said covers being formed with a window therethrough located in a position for accessing one of said receptacles of one of said connector blocks of one of said harnesses through said window.