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Kit of anchoring mechanism parts to protect against earthquake-induced motions in electrical equipment
| Details |
Inventors: Gutelius, Jr., James B.; McIntosh, Steven C.; Notohardjono, Budy D.;
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner: Kent; Christopher
Assistant Examiner:
Attorney, Agent or Firm: Cutter; Lawrence D.
A kit of readily assemblable parts to protect computer equipment and the like against destructive seismological motions. In particular, a turnbuckle mechanism having threaded yokes disposed at opposite ends of the turnbuckle is employed together with eyebolts disposed within the yoke portions of the threaded yokes as a means for providing a retention device for anchoring relatively heavy computer and/or other equipment in position during seismological events. The electrical equipment is disposed within a frame which preferably includes a plurality of metal plates disposed at the bottom thereof. The frame is also provided with casters which permit the equipment to be rolled conveniently into place and then anchored firmly into position using a small number of pins which extend through the threaded yokes and eyebolts. There is provided an easily assemblable and economical apparatus which preferably includes a multiplicity of energy absorption points which help to prevent damage to the expensive computer frame and which further assists in maintaining computer operations at peak levels even during certain seismological activity. |
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DETAILED DESCRIPTION In accordance with one embodiment of the present invention, heavy electrical equipment such as a mainframe computer is attached to an underlying fixed structure such as a floor by means of a sequence of eyebolts, threaded yokes and turnbuckles which connect the equipment to a fixed structure.
In preferred embodiments of the present invention, the equipment is mounted in a frame structure, the bottom of which includes four triangular plates.
Each of the plates has an eyebolt attached thereto by means of an arrangement of nuts and load-distributing washers.
The eyebolt may also be welded to the plate.
This eyebolt is disposed within the yoke portion of a threaded yoke which passes through a bushing inserted in a corresponding opening in a raised floor structure.
The other end of the threaded yoke is disposed within a threaded opening of a turnbuckle.
In preferred embodiments of the present invention, the other end of the turnbuckle also includes another threaded yoke which is attached thereto and has a yoke portion which receives a second eyebolt which is firmly attached to a fixed structure such as a floor, subfloor, column, girder or some other rigid portion of a building.
In one aspect of the present invention, a preferred embodiment includes a combination of the equipment and the seismological retention structure described herein.
In another preferred embodiment, the present invention includes an assembly of parts, some which may be pre-assembled.
Such a collection of parts may be shipped prior to computer installation.
In yet another embodiment of the present invention, a method is provided for conveniently installing mainframe computer units.
This method provides convenience and flexibility while retaining full anchoring, retention and energy absorption capabilities while still providing sufficient design flexibility to accommodate raised floors having different depths.
It is furthermore noted that the structure of the present invention is designed in a manner in which it is possible to use as many off-the-shelf parts as possible
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Vibration and Earthquake Isolation 
