A window breaking system has a seatbelt buckle interfaced to a vehicle through a seatbelt and a seatbelt receiver interfaced to the vehicle for removably receiving the seatbelt buckle. A window breaking mechanism is integrated to the seatbelt buckle such that, in the event escape from the vehicle is needed, the seatbelt buckle is released from the seatbelt receiver and the window breaking mechanism is used to break a window, through which the user (occupant) is now able to escape.

A three-wire wearable device provided by the present disclosure provides numerous functions, a diversity of uses and convenience by a specific design of a first buckle and detachable second buckles. When the second buckles are fastened to the first buckle, the first buckle mutually communicates with the second buckles by using different pulse signals or digital signals through the three-wire transmission, such that the first buckle can be integrated with function modules of all of the second buckles, such as a touch panel, a screen, a heat dissipation pad, and so forth.

The present disclosure provides a combined type hand warmer, including a first hand warmer unit and a second hand warmer unit; a first connection part is arranged on the first hand warmer unit, and a second connection part is arranged on the second hand warmer unit; the first connection part is detachably connected to the second connection part such that the first hand warmer unit and the second hand warmer unit are combined into a whole; and when a user needs to warm two hands/multiple body parts, the first hand warmer unit can be separated from the second hand warmer unit, and the first hand warmer unit and the second hand warmer unit can be respectively used for warming the two hands/multiple body parts.

A strap-securing device is configured to be able to be used to ignite a fire. The strap-securing device may include at least one strap-retaining body configured to retain at least one strap, and at least one fire-starting component configured to be used to ignite a fire. For example, the at least one strap-retaining body may include a first buckle member, and a second buckle member configured to be removably connected to the first buckle member. Alternatively, the at least one strap-retaining body may include a slider, cord lock, shackle, and/or the like.

The present disclosure relates to the field of electronic engineering. The present disclosure envisages a multifunction buckle that integrates multiple health monitoring devices. The multifunction buckle comprises a health sensing module, an activity tracking module, a signal conditioning unit, a processing unit, a notification module, and a communication module. The health sensing module has a plurality of health sensors configured to sense a plurality of health parameters associated with a user. The activity tracking module comprises a pedometer, a sleep detection module, and a gesture detection module. The signal conditioning unit co-operates with the health sensing module and the activity tracking module. The processing unit co-operates with the signal conditioning unit, the health sensing module and the activity tracking module. The notification module co-operates with the processing unit and notifies the user. The communication module receives at least one communication signal from the processor and enables bi-directional communication with communicatively coupled device.

Provided is a buckle for a chest strap of a knapsack, including a plug member including a plug plane portion formed at a front side of a base so as to be connected to the base via a plug inner-side slope, a plug front-end slope extending forward from the plug plane portion, a first magnet embedded in a middle portion of the plug plane portion, and coupling protrusions protruding from opposite sides of the first magnet, and a socket member including a socket plane portion formed at a front side of a base so as to be connected to the base via a socket inner-side slope, a socket front-end slope extending forward from the socket plane portion, a second magnet embedded in a middle portion of the socket plane portion, and coupling recesses formed in opposite sides of the second magnet so as to correspond to the respective coupling protrusions.

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.

Provided is a buckle including a plug member and a socket member. The plug member includes a plate extending forward from a lower end of a base and having a first magnet embedded in a middle portion thereof, and a holder protruding from a front end of the plate. The socket member includes an upper plate extending forward from an upper end of a base and having a second magnet embedded in a middle portion thereof, side plates formed on opposite sides of the upper plate, and a accommodation region formed inside the upper plate and the side plates so as to accommodate the plate therein. The upper plate has a holder aperture formed therein so that the holder is seated in the holder aperture when the plug member and the socket member are coupled to each other.

Provided is a buckle including a plug member and a socket member, wherein the plug member includes lock arms and a guide rod located at a middle position between the lock arms, and the socket member includes a holder formed in a chamber so as to catch the lock arm. The guide rod is provided on the front end thereof with a holding member, and the socket member is centrally provided with a guide groove for the coupling of the guide rod and is also provided with a holding protrusion for the coupling of the holding member. As such, in addition to the coupling between the lock arm and the holder, another coupling structure is provided so as to prevent the buckle from being easily unfastened by unintentional external contact or pressure while ensuring convenient separation of the buckle with one hand as needed.