Strap adjustment system

Patent metadata

Field	Value
Publication number	US-10433619-B2
Application number	US-201815867861-A
Country	US
Kind code	B2
Filing date	Jan 11, 2018
Priority date	Jan 11, 2018
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A strap adjustment system has a base body having a bottom wall, two side walls and a strap retaining bar extending between the two side walls, the bottom wall having an aperture therethrough with screw threads extending around an inside surface, and a screw disc having a central protrusion and screw threads extending around the central protrusion. The central protrusion fits through the aperture in the base body by rotating the screw disc so that the threads in the screw disc mate with the threads in the aperture, such that a height of the protrusion above the bottom wall of the base body is adjustable by turning the screw disc. In situations where a high degree of friction is required, the protrusion can be positioned at a maximum height through the aperture, and in situations where a low degree of friction is desired, the protrusion can be positioned lower.

First claim

What is claimed is:

1. A strap adjusted system comprising:
a base body having a bottom wall with a top surface and a bottom surface, two side walls and a strap retaining bar extending between the two side walls, the bottom wall having an aperture there through, said aperture having screw threads extending around an inside surface thereof;
a screw disc having a central protrusion and screw threads extending around the central protrusion, the central protrusion being adapted to fit through the aperture in the base body and extend above the top surface of the bottom wall by rotating the screw disc so that the threads in the screw disc mate with the threads in the aperture, such that a height of the protrusion above the top surface of the bottom wall of the base body is adjustable by turning the screw disc,
a strap extending through the base body in between the side walls, the strap having an upper surface and a lower surface, wherein the central protrusion presses against the lower surface of the strap, causing friction to prevent the strap from sliding through the base body, and wherein the amount of friction is based on the height of the protrusion so that the amount of friction on the strap is adjustable by turning the screw disc, and
a cam lid pivotally connected to the two side walls and being disposed above an upper surface of the strap, the cam lid having a top surface and a bottom surface, the bottom surface containing friction-creating elements configured for gripping the upper surface of the strap when the cam lid is lowered.

2. The strap adjustment system according to claim 1 , wherein the cam lid is held in a lowered position by a torsion spring.

3. The strap adjustment system according to claim 1 , wherein the function-creating elements are teeth.

4. The strap adjustment system according to claim 1 , wherein the cam lid is connected to the side walls via a pivot rod extending through apertures in the side walls and cam lid.

5. The strap adjustment system according to claim 1 , wherein the protrusion has a rounded top surface with a circumferential ridges for creating friction against a strap when the strap extends through the base body.

6. The strap adjustment system according to claim 1 , wherein the base body further comprises a male buckle portion having locking legs, and further comprising a female portion, wherein the locking legs are adapted to snap into side openings of the female portion.

Assignees

• Duraflex Hong Kong Ltd

Inventors

• Wong Ying Kwan
• Chan Yick Fai

Classifications

• Y10T24/4016

  Pivoted part or lever · CPC title

• A44B11/125 Primary

  with strap tightening means · CPC title

• A44B11/12

  turnable clamp · CPC title

• A44B11/065

  with strap tightening means (A44B11/125 takes precedence; tighteners for securing of load on vehicles B60P7/0823; buckles attached to the end of a strap for bundling articles B65D63/16) · CPC title