Lifter device for displacement of an article

• US 7,967,545 B2
• Filed: 06/29/2004
• Issued: 06/28/2011
• Est. Priority Date: 06/30/2003
• Status: Expired due to Fees

• Current Assignee: Ugland & Lauvdal AS
• Original Assignee: Ugland & Lauvdal AS
• Inventors: Lauvdal, Olav
• Primary Examiner(s): Fox; Charles A
• Application Number:
  US10/562,632
• Publication Number:
  US 20060182586A1
• Time in Patent Office: 2,555 Days
• Field of Search: 414/607, 284/65.5
• US Class Current: 414/607
• CPC Class Codes: B66F 9/18 Load gripping or retaining means
• CPC Class Codes: B66F 9/181 by suction means
• CPC Class Codes: B66F 9/182 by magnetic means
• CPC Class Codes: B66F 9/195 for pushing the load

Abstract

A device for mounting on an implement carrier such as a fork lift truck, hoisting crane or the like in order to move, hold or lift an object. The device comprises—a carrier part which is mounted on the implement carrier preferably by the carrier part being in the form of a sleeve which is inserted on the implement carrier'"'"'s fork structure, and—a holding part which is attached to the carrier. part, the holding part being provided with at least one securing device with characteristics that make it possible to secure an object by contact between at least one of the object'"'"'s surfaces and the securing device, —a trigger that ensures that the forces acting between the object'"'"'s surface and the securing device are broken or discontinued, thus releasing the object.

Claims

1. A lifting device for lifting, moving and stacking an object of a white goods type, the lifting device being adapted for mounting on an implement carrier comprising a fork structure which can be telescoped between a retracted position and an extended position, the lifting device comprising:

a carrier part comprising sleeves mountable on the fork structure of the implement carrier,

a holding part which is attached to the carrier part, the holding part being provided with at least one permanent magnet which is capable of holding and lifting said object due to attractive magnetic forces between the at least one permanent magnet and a surface of said object,

a guide part which is rotatably mounted to the holding part between a position where the object is secured and a position where the object is released,

a fixed connection attachable to a stationary part of the fork structure and the guide part such that the fixed connection causes the guide part to rotate when the telescopic fork structure is extended from the retracted position,

where, on being rotated when the object is held by the at least one permanent magnet, the guide part pushes said object away from the at least one permanent magnet to a distance beyond the effective range of influence of the at least one permanent magnet causing said object to be released from the at least one permanent magnet.

2. A device according to claim 1,

wherein one or more supporting edges are removably mounted in the lower edge of the holding part.

3. A device according to claim 1,

wherein the holding part is oriented vertically relative to the carrier part and/or that the holding part is mounted rotatably on the carrier part, thus enabling the holding part to be moved to another desired position and fixed in this new position.

4. A device according to claim 1,

wherein the fixed connection comprises a line.

5. A lifting device for lifting, moving and stacking an object of a white goods type, the lifting device being adapted for mounting on an implement carrier comprising a fork structure which can be telescoped between a retracted position and an extended position, the lifting device comprising:

a carrier part comprising sleeves mountable on the fork structure of the implement carrier,

a holding part which is attached to the carrier part, the holding part being provided with at least one permanent magnet which is capable of holding and lifting said object due to attractive magnetic forces between the at least one permanent magnet and a surface of said object,

a guide part which is rotatably mounted to the holding part between a position where the object is secured and a position where the object is released,

a spring which is attached to the guide part and a holder on the carrier part such that the spring causes the guide part to rotate when the telescopic fork structure is retracted from the extended position,

a fixed connection attachable to a stationary part of the fork structure and the guide part such that the fixed connection causes the guide part to rotate when the telescopic fork structure is extended from the retracted position, thereby stretching said spring,

where, on being rotated when the object is held by the at least one permanent magnet, the guide part pushes said object away from the at least one permanent magnet to a distance beyond the effective range of influence of the at least one permanent magnet causing said object to be released from the at least one permanent magnet.

6. A device according to claim 5, wherein the fixed connection comprises a line.