Disclosed is a buckle including: a male buckle member; a female buckle member; locking and unlocking means locked and unlocked by a relative sliding action of the male buckle member and the female buckle member; and a releasing means for unlocking the locking and unlocking means by sliding the male buckle member and the female buckle member in a release direction.

Provided is a length adjuster on a wearable device, comprising an arc-shaped shell and a length fine-adjustment mechanism, wherein a first connection rack, a second connection rack, a gear, and a button and a return spring of a gear shaft are provided in the arc-shaped shell; the first connection rack, the second connection rack and the gear are meshed with one another, the gear shaft is connected to a clockwork spring mechanism, the gear shaft and the length fine-adjustment mechanism are in a clutch connection, and the gear shaft and the length fine-adjustment mechanism may be in a clutch connection; and a unidirectional rotation-prevention structure is provided in the length fine-adjustment mechanism, and the unidirectional rotation-prevention structure allows the length fine-adjustment mechanism to drive the gear shaft to rotate in a rotation direction for enabling a clockwork spring to be stretched, and prevents the gear shaft from rotating in the direction opposite to the rotation direction. The length adjuster is provided with a release mechanism for releasing a rotation-prevention effect of the unidirectional transmission structure in the opposite direction, thereby enabling the length fine-adjustment mechanism to drive the gear to rotate in the opposite direction. The length adjuster is capable of arbitrarily adjusting the length and fine-adjustment length, is simple in structure, is applicable to a wearable device, and facilitates the thin design thereof; in addition, the fine-adjustment operation is convenient, and the handfeel is good.

The present invention relates generally to first aid articles and more specifically tourniquets suitable for one handed application. One embodiment of the invention is directed to a tourniquet having a base defining first and second ends. A constricting band is attached to and extends from the first end of the base. A windlass handle is engaged with the constricting band. The constricting band is threaded through a self cinching stepped buckle. A buckle connector includes a hook member that engages the stepped buckle and is partly held in place through urging against a loop of the constriction band.

The restraint assembly includes a mounting plate having a vertical slot. The plate covers an opening in a surface which is located to restrain a patient. An adapter buckle has a T stop which is releasably coupled to the vertical slot. The buckle includes an arm and a head. The head includes a horizontal slot for releasable receipt of a strap of the patient restraint. The arm includes an angular bend which positions the head relative to the plate during use. A lock may be used to prevent undesired separation of the buckle from the plate.

A buckle, such as for a strap or belt, houses a compact multi tool that is removable from the buckle. The arrangement includes a retention mechanism so the removable multi tool stays secure even with excessive body motion. The buckle can be any type of buckle for a belt or other type of strap. The buckle can couple a belt or strap to itself to create a loop or can couple strap portions to one another. The buckle functionality can be provided by any suitable arrangement, such as a cam lock mechanism, a pin or post-in-hole arrangement or a snap-fit arrangement, for example and without limitation. The multi-tool can include one or more articulating (e.g., foldable) tool elements. In some configurations, the multi-tool comprises a sleeve that receives a body of the multi-tool. The sleeve can include tool features.

A buckle includes a first connector with a first housing where the first housing includes a locking protrusion and a first magnetic portion. The buckle also includes a second connector that includes a second housing where the second housing includes a second magnetic portion and a trench for receiving the locking protrusion of the first connector. Here, the second magnetic portion is magnetically attracted to the first magnetic portion. The buckle further includes a locking mechanism mounted on the second connector at the trench. The locking mechanism includes a pivotable lever with a blocking portion. During mating of the first connector and the second connector, the pivotable lever pivotably receives the locking protrusion until the locking protrusion seats within the trench in a locked position. The blocking portion blocks the locking protrusion from movement in the locked position.

A attachment system is formed by a primary device and a secondary device connected to the primary device in a pivoting manner. The primary device has a main body, two lateral sides and a bar for attaching the primary device to another object. Each of the lateral sides has a protrusion extending laterally outward from the lateral sides. The secondary device has two lateral sides, each equipped with an aperture that corresponds to one of the protrusions on the primary device, so that fitting the protrusions into the apertures pivotally connects the primary device to the secondary device, with the lateral sides of the secondary device being disposed outside of the lateral sides of the primary device. The secondary device can be pivoted between a folded position where the secondary device lies against the primary device, and an open position where the secondary device is raised up.

In an example, a wearable article includes a nonwoven textile sheet having a first portion and a second portion contiguous with the first portion. The first portion has a first density and a first modulus of elasticity. The second portion has a second density less than the first density and has a second modulus of elasticity less than the first modulus of elasticity. The first portion is shaped differently than the second portion as an integral implement of the wearable article. A method of manufacturing a wearable article may comprise thermoforming the first portion while the second portion contiguous with the thermoformed first portion is not thermoformed.

The invention relates to a novel incendiary device with a fire starter and a quick release slide buckle wherein sparking and ignition means reside in the buckle apparatus, and which buckle may be attached to clothing, backpacks or any other item a quick release slide buckle may be utilized. One portion of the buckle houses a sparking and combustible material, and the other is a mating side of a quick release buckle. Adding a fire starter to a quick release buckle is a novel tool for any outdoor activity that requires fire ignition.

A luminous spring buckle device includes a hollow casing, a luminous device, a spring and a bearing device. The hollow casing includes a bottom and an upper opening. The luminous device is positioned in the hollow casing and includes a controlling circuit and a luminous component. The spring is contained in the hollow casing. The bearing device is engaged with the upper opening in a sliding manner and coupled to the spring. Wherein, when an external force is applied to the bearing device, the bearing device compresses the spring and presses the controlling circuit to enable the luminous component to emit light. Compared with the prior art, the luminous spring buckle device includes the function of the spring buckle and luminous function to increase the recognizability and the night warning function.