Door system for airflow control
A door system suitable for installation in data centers to limit airflow to and from aisles between rows of equipment cabinets has a door assembly with a door panel and a plurality of vertically spaced hinge assemblies having powerful permanent magnets manually movable between connected and disconnected positions, enabling the door assembly to be aligned and positioned on the side wall panel of an equipment cabinet and then removably mounted in place by engagement of the magnets. Each magnet can be mounted in a rotatable threaded magnet carriers received in a threaded recesses in the hinge assembly and rotation of the magnet carrier is operable to move the magnet into the connected and disconnected positions. The hinge assemblies also include registration tabs that engage slots in the cabinet for proper alignment and orientation of the door system.
1. A door system comprising:
a door panel;
a hinge assembly secured to the door panel;
the hinge assembly having a base forming a mounting surface operable to mount to a vertical surface of a support;
the door panel being operable to pivot about a vertical pivot axis when the hinge assembly is mounted to the vertical surface;
the hinge assembly having at least one magnet operable for magnetic connection to a metallic portion of the vertical surface; and
the magnet being selectively movable relative to the base into a connected position wherein the magnet is positioned to magnetically mount the hinge assembly to the vertical surface, and the magnet being selectively movable into a disconnected position wherein the magnet is displaced in a direction perpendicular to the mounting surface of the base, relative to the connected position, and is positioned to allow removal of hinge assembly from the vertical surface.
2. A door system as in claim 1 , comprising:
the magnet having a contact surface;
in the connected position, the contact surface of the magnet being substantially coplanar with the mounting surface of the base of the hinge assembly; and
in the disconnected position, the contact surface of the magnet being substantially spaced from the mounting surface of the base.
3. A door system as in claim 1 , comprising:
the hinge assembly having a cylindrical recess fixed relative to the base and the cylindrical recess having first threads;
the hinge assembly having a magnet carrier, the magnet carrier having a cylindrical portion with second threads engaged with the first threads of the cylindrical recess; and
the magnet being connected to the magnet carrier and the magnet being selectively movable into the connected and disconnected positions by rotation of the magnet carrier relative to the base.
4. A door system as in claim 3 , comprising:
the first threads of the cylindrical recess being internal threads and the second threads of the magnet carrier being external threads.
5. A door system as in claim 3 , comprising:
the magnet carrier having a manually engageable gripping element for controlled rotation of the magnet carrier with respect to the base to selectively move the magnet into the connected and disconnected positions.
6. A door system as in claim 1 , comprising:
the hinge assembly having a vertically aligned registration tab projecting from the base and adapted to engage a vertical slot in the vertical support structure.
7. A door system as in claim 6 , comprising:
two of said hinge assemblies are provided with said registration tabs.
8. A door system as in claim 1 , comprising:
a vertically adjustable leveling foot being mounted to the hinge assembly, and the leveling foot being operable to engage a floor surface.
9. A door system as in claim 1 , comprising:
a vertically adjustable door support assembly mounted to the hinge assembly; the door support assembly including a hanger bracket of inverted L-shaped configuration having vertical and horizontal bracket elements;
a magnet secured to the horizontal bracket element for engagement with a horizontal support; and
the vertical bracket element being connected to the base of the hinge assembly and being vertically adjustable with respect to the base.
10. A door system as in claim 9 , comprising:
the base of the hinge assembly has a lateral extension, and the vertical bracket element being connected to the lateral extension.
11. A door system as in claim 10 , comprising:
the lateral extension of the base having a plurality of outwardly projecting threaded studs;
the vertical bracket element having a plurality of vertically elongated slots aligned with said threaded studs; and
an internally threaded knob engaging each of the threaded studs for manually securing the vertical bracket element to the lateral extension.
12. A door system as in claim 1 , comprising:
a data center having a first row of equipment cabinets;
the vertical support surface comprising a first side wall of an equipment cabinet in the first row; and
the hinge assembly being mounted to the first side wall.
13. A door system as in claim 12 , comprising:
a second row of equipment cabinets and an aisle between the first and second row; and
the door panel extending into the aisle.
14. A door system comprising:
a door panel;
a hinge assembly secured to the door panel;
the hinge assembly having a base forming a mounting surface operable to contact a vertical support;
the hinge assembly having at least one magnet operable for magnetic connection to a metallic portion of the vertical support;
the magnet being selectively movable relative to the base into a connected position wherein the magnet is positioned to magnetically mount the hinge assembly to the vertical support, and the magnet being selectively movable into a disconnected position wherein the magnet is positioned to allow removal of hinge assembly from the vertical support;
the hinge assembly having a cylindrical recess fixed relative to the base and the cylindrical recess having first threads;
the hinge assembly having a magnet carrier, the magnet carrier having a cylindrical portion with second threads engaged with the first threads of the cylindrical recess; and
the magnet being connected to the magnet carrier and the magnet being selectively movable into the connected and disconnected positions by rotation of the magnet carrier relative to the base.
15. A door system as in claim 14 , comprising:
the first threads of the cylindrical recess being internal threads and the second threads of the magnet carrier being external threads.
16. A door system as in claim 14 , comprising:
the magnet carrier having a manually engageable gripping element for controlled rotation of the magnet carrier with respect to the base to selectively move the magnet into the connected and disconnected positions.
17. A door system as in claim 14 , comprising:
the magnet having a contact surface;
in the connected position, the contact surface of the magnet being substantially coplanar with the mounting surface of the base of the hinge assembly; and
in the disconnected position, the contact surface of the magnet being substantially spaced from the mounting surface of the base.
18. A door system as in claim 17 , comprising:
the base of the hinge assembly has a lateral extension, and the vertical bracket element being connected to the lateral extension.
19. A door system as in claim 18 , comprising:
the lateral extension of the base having a plurality of outwardly projecting threaded studs;
the vertical bracket element having a plurality of vertically elongated slots aligned with said threaded studs; and
an internally threaded knob engaging each of the threaded studs for manually securing the vertical bracket element to the lateral extension.
20. A door system comprising:
a door panel;
a hinge assembly secured to the door panel;
the hinge assembly having a base forming a mounting surface operable to contact a vertical support;
the hinge assembly having at least one magnet operable for magnetic connection to a metallic portion of the vertical support;
the magnet being selectively movable relative to the base into a connected position wherein the magnet is positioned to magnetically mount the hinge assembly to the vertical support, and the magnet being selectively movable into a disconnected position wherein the magnet is positioned to allow removal of hinge assembly from the vertical support;
a vertically adjustable door support assembly mounted to the hinge assembly; the door support assembly including a hanger bracket of inverted L-shaped configuration having vertical and horizontal bracket elements;
a magnet secured to the horizontal bracket element for engagement with a horizontal support; and
the vertical bracket element being connected to the base of the hinge assembly and being vertically adjustable with respect to the base.