Automatic release clamp

Patent metadata

Field	Value
Publication number	US-12163544-B2
Application number	US-202318449322-A
Country	US
Kind code	B2
Filing date	Aug 14, 2023
Priority date	Dec 29, 2020
Publication date	Dec 10, 2024
Grant date	Dec 10, 2024

Abstract

Aspects herein are directed to a clamp having a linkage coupled to a first end of a first and second clamp member. Based on applying a first directional force to the linkage, the linkage generates a force that moves the second ends of the first and second clamp member towards one another, thereby biasing the clamp to the closed position. The clamp secures a strap when the clamp is in the closed position and releases the strap when the clamp is in an open position.

First claim

What is claimed is:

1. A linkage system for moving a clamp from an open position to a closed position, the linkage system comprising:
a first linkage member and a second linkage member, wherein:
a first end of the first linkage member is pivotally coupled to a first end of a first clamp member of the clamp;
a first end of the second linkage member is pivotally coupled to a first end of a second clamp member of the clamp;
a second end of the first linkage member is pivotally coupled to a second end of the second linkage member; and
upon a first directional force being applied to the linkage system, the linkage system is configured to generate a second directional force that biases the clamp from the open position to the closed position by moving a second end of the first clamp member towards a second end of the second clamp member to secure a strap at the second end of the first clamp member when the clamp is in the closed position.

2. The linkage system of claim 1 , wherein the second end of the first linkage member is pivotally coupled to the second end of the second linkage member via a hinge.

3. The linkage system of claim 2 , wherein the linkage system comprises a coupling member pivotally coupled to the hinge, and the coupling member is configured for applying the first directional force to the linkage system.

4. The linkage system of claim 1 , wherein the linkage system extends into an opening formed between the first end of the first clamp member and the first end of the second clamp member.

5. The linkage system of claim 1 , wherein the first directional force is a vertical force that is generated based on suspending an item via the clamp.

6. The linkage system of claim 1 , wherein the linkage system is configured to generate the second directional force and cause a torque of a hinge coupling the first clamp member to the second clamp member to cause a clamping force that biases the clamp from the open position to the closed position.

7. The linkage system of claim 6 , wherein the first end of the first linkage member is pivotally coupled to the first end of the first clamp member of the clamp and the first end of the second linkage member is pivotally coupled to the first end of the second clamp member of the clamp at a location such that the clamping force is within a range from about zero degrees to ninety degrees with respect to the first directional force.

8. A linkage system, the linkage system comprising:
a first linkage, that when a directional force is applied to the first linkage, is configured to generate a first clamping force that moves a first clamp from an open position to a closed position; and
a second linkage, that when the directional force is applied to the second linkage, is configured to generate a second clamping force that moves a second clamp from an open position to a closed position, wherein the first linkage is coupled to the second linkage so as to simultaneously move in response to the directional force, the first clamp secures a first strap while in the closed position, and the second clamp secures a second strap while in the closed position.

9. The linkage system of claim 8 , wherein each angle of the first clamping force and the second clamping force is within a range from about zero degrees to ninety degrees with respect to the directional force.

10. The linkage system of claim 8 , wherein the directional force is a vertical force.

11. The linkage system of claim 8 , wherein the first linkage is positioned above the second linkage, and the linkage system comprises one or more coupling members configured to couple the first linkage to the second linkage.

12. The linkage system of claim 11 , wherein each of the first linkage and the second linkage is pivotally coupled to the one or more coupling members via a hinge.

13. The linkage system of claim 12 , wherein the one or more coupling members are configured for applying the directional force to the first linkage and the second linkage.

14. A method for transporting an item, the method comprising:
securing a strap around the item using a clamp, the strap having a first end and a second end, the first end of the strap mounted to the clamp and the second end of the strap secured by the clamp when the clamp is in a closed position; and
suspending the item to generate a clamping force that is proportional to a weight of the item, the clamping force biasing the clamp to the closed position, wherein the clamp comprises a first clamp member having a first end and a second end and a second clamp member having a first end and a second end, and suspending the item to generate the clamping force comprises suspending the item to apply a force vertically upwards to the first end of the first clamp member and the first end of the second clamp member to generate the clamping force to move the second end of the first clamp member towards the second end of the second clamp member.

15. The method of claim 14 further comprising:
lowering the item to a resting position on a surface, wherein the weight of the item resting on the surface removes the clamping force to allow the clamp to move to an open position and releases the second end of the strap.

16. The method of claim 15 , wherein the second end of the strap retracts when the clamp is moved to the open position.

17. The method of claim 14 , wherein a linkage is coupled to a first end of the clamp, and suspending the item applies a direction force to the linkage that generates the clamping force.

Assignees

• United parcel service america inc

Inventors

• Gil Julio

Classifications

• B64U2101/67

  the UAVs comprising tethers for lowering the goods · CPC title

• B66C1/422

  actuated by lifting force (B66C1/44, B66C1/58 take precedence) · CPC title

• B64D1/22

  Taking-up articles from earth's surface · CPC title

• B66C1/12

  Slings comprising chains, wires, ropes, or bands; Nets (article side grippers suspended by ropes or chains from crane hooks B66C1/42) · CPC title

• B64D1/12

  Releasing · CPC title