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.

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.

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.

Ring and Wing Buckle is a new kind of fastener, which may be used to connect lose ends of belts, cords, wires, ropes, chains and the like in luggage, garment, fashion, jewelry, footwear, sports gear, construction, sailing, Recreation and similar fields of endeavor. It can be made in any size and of variety of materials like plastics, metals or wood, using flat, cut out slices layered together or as a solid body, using 3D printing, injection molding or casting. Flat and symmetrical body, allows multiple buckles to be layered together to form buckle hubs for harnesses.

A buckle includes a plug and a socket, the plug and the socket each being attached to a predetermined member and being capable of being connected to and disconnected from each other. The plug includes an attachment portion configured to be attached to the predetermined member and a pair of leg portions extending in the same direction from the attachment portion. An engagement portion is formed at each leg portion. Each leg portion is bent at a plurality of bending points between the attachment portion and the engagement portion in an extending direction of each leg portion. A U-shaped bridge is provided on inner side surfaces of the pair of leg portions, the inner side surfaces facing each other at vicinities of respective distal end portions of the pair of leg portions, the U-shaped bridge connecting vicinities of the respective distal end portions.

A system for attachment to webbing has an attachment portion and an operating portion that can be attached to and detached from each other. The attachment portion has a base body with a cavity, a transverse bar, and two locking hooks. The operating portion has two side legs, top sections connected to the side legs, a gap between the top sections and a locking hook on each of the top sections. The operating portion is connectable to the attachment portion by pressing the legs together and inserting the locking hooks of the operating portion into the base body, and then releasing the legs so that the locking hooks of the attachment portion and operating portion engage each other. The operating portion is detachable from the attachment portion by squeezing the legs together until the locking hooks on the operating portion clear the locking hooks on the attachment portion.

A buckle includes a tab having a first side opposed to a second side and a receiver having a first side opposed to a second side. A first pair of pawls is pivotally connected to the first side of the tab. A cavity is defined in the receiver between the first and second sides of the receiver and configured to receive the first and second sides of the tab. The first pair of pawls has a locked position in which the first pair of pawls is engaged with the receiver to prevent movement of the tab with respect to the receiver and a released position in which the first pair of pawls permits movement of the tab with respect to the receiver. A first button on the first side of the receiver has a released position that moves the first pair of pawls to the released position.

A connector is described having a female part defining a recess, a male part including a section receivable within the recess of the female part, and a lock pin insertable into an opening provided in the female part. The lock pin is engageable with the section of the male part when the male part is located within the recess to retain the male part within the recess. The female part is provided, around a periphery of the opening, with a stabilizing recess. The lock pin includes a feature receivable within the stabilizing recess, engageable with a base of the stabilizing recess to limit the distance by which the lock pin can be inserted into the opening.

An inserting buckle comprises an insertion piece, a buckle body, an ejection member, a first pressing buckle and a second pressing buckle. The second pressing buckle movably disposed in the cavity and moved toward or away from the first pressing buckle; the second pressing buckle is driven back by a second elastic member; a buckle hole is formed between the first pressing buckle and the second pressing buckle; the connection portion is inserted into the cavity and is locked in the buckle hole; the first pressing buckle and the second pressing buckle are simultaneously pressed to enlarge its width of the buckle hole, the connection portion is separated from the buckle hole, the ejection member ejects the connection portion out of the cavity. The operation of separating the buckle body and the insertion piece only needs to simultaneously press the first button and the second button with one hand.

The present invention provides a double-sided usable belt buckle, a belt having the double-sided usable belt buckle can be available on both sides. The two ends of the pin shaft can be connected with the buckle and the tail clamp by matching the clamping block arranged on the pin shaft with the clamping groove. The clamping block extends into the pin shaft mounting hole firstly, and after the connecting convex block is clamped into the connecting groove, the clamping block can be clamped into the clamping groove. When it is needed to use the other side of the belt having the double-sided usable belt buckle, simply pressing the pin shaft to make the clamping block slide out of the clamping groove so as to separate the tail clamp from the buckle, and then replace the tail clamp and connect it with the buckle again.