Duraflex Hong Kong Limited

Yick Fai Chan

Ying Kwan Wong

Kevin Wellhausen Dee

Po Chu Lin

Wai Leung Au

Cord lock

Cord hook

Hook

A pull ring for a buckle assembly that has a main body with a first hook element facing a rear end, and an actuation button. The actuation button is connected to the main body by a spring so that the actuation button can move between an extended resting position and a compressed position. The actuation button has a second hook element on a bottom surface and which faces the front end of the main body. The pull ring is connected to the main body and actuation button by fitting the pull ring around the first hook element, pressing the actuation button, pivoting the actuation button and main body until the second hook element is disposed within a central aperture of the pull ring, and releasing the actuation button so that the pull ring is retained in the hook elements under pressure by the spring.

Buckle with pull ring

Buckle

A buckle assembly has a main body with a first hook element facing a rear end, and an actuation button disposed in a cavity of the main body. The actuation button is connected to the main body by a spring so that the actuation button can move between an extended resting position and a compressed position. The actuation button has a second hook element on a bottom surface and which faces the front end of the main body. A pull ring is connected to the main body and actuation button by fitting the pull ring around the first hook element, pressing the actuation button, pivoting the actuation button and main body until the second hook element is disposed within a central aperture of the pull ring, and releasing the actuation button so that the pull ring is retained in the hook elements under pressure by the spring.

A securing device has a main body having a first side wall, a second side wall, and at least one first slot for receiving a strap, and a top bar connected to the main buckle body at the first side wall and forming a second slot with the main buckle body for receiving a second strap. The second slot is open at a distal end thereof. The top bar has a guide track extending longitudinally therethrough, with the guide track opening into the second slot. A catch is formed on the second side wall and facing inward. A spring gate is disposed in the guide track. The spring gate is placed around the catch to close the distal end of the second slot. The spring gate is releasable from the catch by pressing on the top bar until the spring gate clears the catch.

Securing device with spring closure

A securing device that allows adjustable securing of a face mask, face shield or goggles to a wearer's head is formed from a first portion having a strap, a first end with a securing button and a connecting element, and a second portion having a strap, a first end with a securing button and a connecting receptacle for interacting with the connecting element to connect the two straps together. The securing buttons are formed from a top plate connected to a bottom plate via a connecting leg having a cross section with an acute angle. The bottom plate has slits extending from an outer edge to the connecting leg on both sides of the acute angle, such that a cord is securable to the securing button by inserting the cord into one of the slits, wrapping the cord around the acute angle of the connecting leg and exiting from the other of the slits.

Cord securing system

A strap adjustment device has a retaining body and a strap connector adjustably mounted in the retaining body. The retaining body has an interior cavity and a top opening extending in a horizontal direction, and at least one protrusion extending into the cavity. The strap connector has a strap connecting portion with at least one strap connecting element, and an adjustment portion disposed inside the cavity. The adjustment portion has a lower locking element and a spring mounted its end. When the spring is in a relaxed state, the protrusion prevents movement of the strap connector in the horizontal direction by blocking the lower locking element. Pressing the strap connector against the force of the spring moves the lower locking element below the protrusion, so that the strap connector can be moved in the horizontal direction to a new position within the retaining body.

Strap adjustment device

A buckle has a main buckle body having a first side wall, a second side wall, and at least one first slot for receiving a strap, and a top bar connected to the main buckle body at the first side wall and forming a second slot with the main buckle body for receiving a second strap. The second slot is open at a distal end thereof. The top bar has a guide track extending longitudinally therethrough, with the guide track opening into the second slot. A catch is formed on the second side wall adjacent the distal end of the second slot. A spring gate is disposed in the guide track. The spring gate is placed around the catch to close the distal end of the second slot. The spring gate is releasable from the catch by pressing on the top bar until the spring gate clears the catch.

Buckle with spring closure

A buckle has a main body, a strap retaining bar connected to the main body, two locking legs formed as separate pieces from the main body and pivotably connected to the main body; and a spring formed of two L-shaped sections disposed between the two locking legs. The spring is attached to both of the locking legs, and exerts a force against the locking legs when they are pressed inward toward each other. The spring keeps the locking legs in an outwardly tensioned position, but does not let the legs flex outwardly in an unlimited manner, since the spring is directly connected to the legs. The spring allows the main body and locking legs to be formed of an inflexible material, such as metal. The locking legs are separate pieces from the main body and are connected to the main body via a pivot pin or other hinged mechanism.

A buckle has a main body, a strap retaining bar connected to the main body, two locking legs formed as separate pieces from the main body and pivotably connected to the main body; and a spring disposed between the two locking legs. The spring is attached to both of the locking legs, and exerts a force against the locking legs when they are pressed inward toward each other. The spring keeps the locking legs in an outwardly tensioned position, but does not let the legs flex outwardly in an unlimited manner, since the spring is directly connected to the legs. The spring allows the main body and locking legs to be formed of an inflexible material, such as metal. The locking legs are separate pieces from the main body and are connected to the main body via a pivot pin or other hinged mechanism.

Growing community of inventors

Hong Kong, China

Yick Fai Chan