IP Library Granted Patent US 10,315,891
Granted Patent B2
US 10,315,891 · App. 15/342,607 · Granted Jun 11, 2019

Beam interlock for hoist trolley

Inventor: Christopher A. White (Lebanon, PA)
Assignee: Harrington Hoists, Inc.
B66C17/00B66C7/12B66C7/16F16B7/22
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Quick Facts
Patent No.
US 10,315,891
App. No.
15/342,607
Granted
Jun 11, 2019
Kind
B2
Abstract

Aspects of the present disclosure are directed toward apparatuses, systems, and methods for releasably connecting a first beam to a second beam. The apparatuses, systems, and methods may include a locking pin arranged on the first beam and configured to actuate between an unlocked position and a locked position and an arm coupled to the locking pin and extending parallel therewith. The apparatuses, systems, and methods may also include a sleeve arranged on the second beam and configured to receive the locking pin in the locked position to releasably secure the first beam to the second beam.

Claims (38)

1. An interlock apparatus for releasably connecting a first beam to a second beam, the interlock apparatus comprising:

a locking pin arranged on the first beam and configured to actuate between an unlocked position and a locked position;

an arm coupled to the locking pin and extending parallel therewith, the arm being configured to transition a first stop mechanism between a blocking position and an unblocking position, the first stop mechanism being arranged at a lower surface of the first beam and extending therethrough;

a sleeve arranged on the second beam and configured to receive the locking pin in the locked position to releasably secure the first beam to the second beam; and

a proximity sensor configured to indicate that the first beam and the second beam are aligned in a locking position.

2. The interlock apparatus of claim 1 , wherein the locking pin is configured to actuate the arm parallel to the lower surface of the first beam simultaneously therewith in transitioning between the unlocked position and the locked position.

3. The interlock apparatus of claim 1 , wherein the first stop mechanism includes a linkage arranged with the first stop mechanism, the arm being configured to contact the linkage to transition the first stop mechanism between the blocking position and the unblocking position.

4. The interlock apparatus of claim 3 , wherein the arm is configured to separate from the linkage in the blocking position.

5. The interlock apparatus of claim 1 , further comprising a second stop mechanism arranged at a lower surface of the second beam and extending therethrough and configured to actuate between a blocking position and an unblocking position.

6. The interlock apparatus of claim 5 , wherein the arm is configured to extend between the first beam and the second beam and transition the second stop mechanism between the blocking position and the unblocking position.

7. The interlock apparatus of claim 1 , further comprising at least one motorized end truck configured to position the first beam adjacent the second beam.

8. The interlock apparatus of claim 1 , further comprising a magnetic structure arranged on the second beam, and wherein the proximity sensor is arranged on the first beam and configured to sense a magnetic field from the magnetic structure.

9. A system comprising:

a trolley hoist configured to hoist material from an overhead position;

an interlock mechanism configured to releasably secure a first beam to a second beam including:

a locking pin arranged on the first beam and configured to actuate between an unlocked position and a locked position;

a first stop mechanism arranged at a lower surface of the first beam and extending therethrough and configured to actuate between a blocking position and an unblocking position,

a second stop mechanism arranged at a lower surface of the second beam and extending therethrough and configured to actuate between a blocking position and an unblocking position,

an arm coupled to the locking pin and extending parallel therewith, the first arm being configured to transition the first stop mechanism between the blocking position and the unblocking position and the second mechanism between the blocking position and the unblocking position, and

a sleeve arranged on the second beam and configured to receive the locking pin in the locked position; and

a proximity sensor configured to indicate that the first beam and the second beam are aligned in a locking position.

10. The system of claim 9 , wherein the first stop mechanism and the second stop mechanism are configured to:

allow movement of the trolley hoist along the lower surface of one of the first beam and the second beam and mitigate against movement of the trolley hoist along the lower surface of the other of the first beam and the second beam in the blocking position, and

allow movement of the trolley hoist along the lower surface of the first beam and along the lower surface of the second beam in the in the blocking position.

11. The system of claim 9 , further comprising an alignment apparatus configured to align the first beam and the second beam.

12. The system of claim 9 , further comprising a drive mechanism configured to simultaneously actuate the locking pin and the arm.

13. The system of claim 12 , further comprising a control mechanism configured to maintain the locking pin in the locked position in an activated state, and release the locking pin to the unlocked position in an inactive state.

14. The system of claim 13 , wherein the control mechanism is further configured to release the first stop mechanism to the blocking position and the second stop mechanism to the blocking position in the inactive state.

15. The system of claim 12 , wherein the control mechanism is further configured to toggle the trolley hoist to an immobile state during alignment of the first beam and the second beam.

16. A method for releasably connecting a first beam to a second beam, the method comprising:

arranging the first beam adjacent the second beam;

actuating a locking pin, arranged on the first beam, to span the first beam and the second beam;

actuating an arm, coupled to the locking pin and extending parallel therewith,

simultaneously with the locking pin and transitioning a first stop mechanism between a blocking position and an unblocking position, the first stop mechanism being arranged at a lower surface of the first beam and extending therethrough; and

using a proximity sensor to indicate that the first beam and the second beam are aligned in a locking position; and

receiving the locking pin in a sleeve arranged on the second beam to releasably secure the first beam to the second beam.

17. The method of claim 16 , further comprising determining the first beam is adjacent to the second beam.

18. The method of claim 16 , wherein actuating the arm simultaneously with the locking pin comprises transitioning a second stop mechanism between a blocking position and an unblocking position, the second stop mechanism being arranged at a lower surface of the second beam and extending therethrough.

Assignments (4)
SECURITY INTEREST Recorded Feb 3, 2026
From: COLUMBUS MCKINNON CORPORATION; MAGNETEK, INC.; DORNER MFG. CORP.; HARRINGTON HOISTS, INC.; PEERLESS CHAIN COMPANY; THE CROSBY GROUP LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 074622/0233 →
SECURITY INTEREST Recorded Feb 3, 2026
From: COLUMBUS MCKINNON CORPORATION; MAGNETEK, INC.; DORNER MFG. CORP.; HARRINGTON HOISTS, INC.; PEERLESS CHAIN COMPANY; THE CROSBY GROUP LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 074622/0922 →
GRANT OF SECURITY INTEREST IN PATENT RIGHTS Recorded Sep 12, 2024
From: PEERLESS CHAIN COMPANY; HARRINGTON HOISTS, INC.
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 068946/0630 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 3, 2016
From: WHITE, CHRISTOPHER A.
To: HARRINGTON HOISTS, INC.
Reel/Frame 040215/0126 →
Continuity (1)
Related Publication 20180118524A1 · May 3, 2018