# US 2012/0073097 A1 · Ratchet buckle

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- Number: US 2012/0073097 A1
- Document ID: US20120073097A1
- Status: Published application
- Kind: A1
- Application number: 12/890,771
- Filed: 2010-09-27
- Published: 2012-03-29
- Earliest claimed: 2010-09-27
- Assignees: Win Chance Metal Co., Ltd.
- Inventors: Wen Cheng Chang
- Web page: https://patentgrep.com/patent/US20120073097A1

## CPC

- B60P 7/083: {Tensioning by repetetive movement of an actuating member}
- Y10T 24/2175: Cargo tie down
- B60P: VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS (vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances A61G3/00)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A ratchet buckle has a body and a trigger. One end of the body has two opposite pivotal holes, two opposite positioning notches, and a pivotal shaft penetrating the pivotal holes. Two ends of the pivotal shaft each have a ratchet wheel synchronously rotating with the pivotal shaft. One end of the trigger has two opposite shaft holes engaged to the pivotal shaft of the body and has a positioning rod transversally mounted on the trigger to engage the two positioning notches of the body. By operating the trigger to set the pivotal shaft free, the pivotal shaft is easily rotated to reel a strap.

## Claims

### Claim 1

A ratchet buckle comprising:
a body having a first end and a second end, wherein the first end of the body has:
two pivotal holes formed oppositely to engage with the a pivotal shaft adapted to reel a strap;
two positioning notches formed oppositely; and
two ratchet wheels attached on inner sides of the two pivotal holes respectively; and
a trigger having a first end and a second end, wherein the first end of the trigger has:
two shaft holes formed oppositely and sleeving the pivotal shaft of the body; and
a positioning rod transversally attached to the first end of the trigger and engaged to the two positioning notches of the body to locate the relative position of the body and the trigger to keep the two pivotal holes of the body and the two shaft holes of the trigger concentric and thus to keep the pivotal shaft of the body not pressed by shearing force to rotate easily;
wherein a distance between the centers of the positioning notches and the pivotal holes of the body is equal to a distance between centers of the positioning rod and the shaft holes of the trigger.

### Claim 2 (depends on 1)

The ratchet buckle as claimed in claim 1, wherein the positioning notches of the body are concave arcs; and
the positioning rod of the trigger has a round cross-section.

### Claim 3 (depends on 1)

The ratchet buckle as claimed in claim 1, wherein second end of the body has a resilient pressing element adapted to abut the strap.