Self-balancing synchronization assembly for a hydraulic elevator
AssigneeInventio AG
InventorsKarl B. Orndorff, Eileen W. Rossman
Life of this patent
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Abstract
A self-balancing synchronization assembly has a support beam pivotally mounted on a guide rail adjacent a hydraulic elevator jack. A synchronization bracket is pivotally mounted at one end of the beam and a pair of synchronization cables is connected between the bracket and a telescoping part of the jack. A return cable is connected between the other end of the beam and the hoistway pit to balance the load and includes a turnbuckle for retensioning the synchronization cables. A second synchronization bracket can be pivotally mounted at the one end of the support beam to synchronize a three-stage jack.
Claims12
An apparatus for synchronizing the movement of telescoping parts of a hydraulic elevator jack comprising:
- a mounting means adapted to be attached to an elevator guide rail;
- a generally horizontally extending support beam having a first end and a second end opposite said first end, said beam being pivotably attached to said mounting means intermediate said first end and said second end;
- at least one synchronization bracket pivotably attached to said first end of said beam and adapted to be attached to one end of each of a pair of synchronization cables each having an opposite end adapted to be attached to a telescoping part of an elevator jack;
- and
- a return cable attachment means at said second end of said support beam and adapted to be attached to one end of a return cable.
An apparatus for synchronizing the movement of telescoping parts of a hydraulic elevator jack comprising:
- a pivot plate adapted to be attached to an elevator guide rail;
- an elongated support beam having a first end and a second end opposite said first end, said beam being pivotably attached to said pivot plate intermediate said first end and said second end;
- at least one synchronization bracket pivotably attached to said first end of said beam;
- a pair of synchronization cables each having one end attached to said one synchronization bracket and an opposite end adapted to be attached to a telescoping part of an elevator jack;
- and
- a return cable having one end attached to said second end of said support beam and an opposite end adapted to be attached to a fixed point in an elevator hoistway.
Dependencies are inferred from the claim text.