The disclosure belongs to the technical field of powered drive devices, and discloses an acceleration control method for a load on a powered backpack based on a disturbance observer. The method includes: S1 setting the desired acceleration of the load on the powered backpack, presetting the initial motor drive current that regulates the movement of the load according to the desired acceleration, measuring the actual acceleration of the load; S2 establishing the disturbance observer for controlling acceleration the load on the powered backpack, using the disturbance observer to calculate the motor drive current that makes the actual acceleration of the load equal to the desired acceleration, so as to realize the acceleration control of the load on the powered backpack.

An article of apparel has at least one panel including a first material having a first modulus of elasticity and a second material having a second modulus of elasticity, the first modulus of elasticity being greater than the second modulus of elasticity. An auxetic structure is provided by the first material on the panel, the auxetic structure comprising a pattern of reentrant shapes. A fill portion is provided by the second material on the panel, the fill portion formed by a plurality of stitches positioned inside of each reentrant shape of the auxetic structure, and the fill portion substantially filling an interior area defined by each reentrant shape. The fill portion is a base layer of the at least one panel and the auxetic structure is an auxetic layer positioned on the base layer.

A backpack with an inflatable element, designed to facilitate comfort during transport. One of the aims of the backpack is to allow objects and/or elements to be placed therein. The backpack also has an integrated inflatable element that acts as a seat for a child, wherein the child sits on said element, on the shoulders of the user of the backpack. In addition, the backpack has a pair of harnesses that can be removed from straps, used to securely surround the legs and/or ankles of the child. When the backpack is placed in front of the user's torso, the inflatable element also allows the user to rest his/her head and, at the same time, the user can rest his/her arms by placing them in a hollow structure located at the front of the backpack, preferably as part of the configuration of an exterior bag.

A backpack with an inflatable element, designed to facilitate comfort during transport. One of the aims of the backpack is to allow objects and/or elements to be placed therein. The backpack also has an integrated inflatable element that acts as a seat for a child, wherein the child sits on said element, on the shoulders of the user of the backpack. In addition, the backpack has a pair of harnesses that can be removed from straps, used to securely surround the legs and/or ankles of the child. When the backpack is placed in front of the user's torso, the inflatable element also allows the user to rest his/her head and, at the same time, the user can rest his/her arms by placing them in a hollow structure located at the front of the backpack, preferably as part of the configuration of an exterior bag.

A lacing system configured to selectively adjust the size of an opening on an object and allow for the incremental release of the lace within the lacing system. The lacing system can have a reel comprising a housing, a spool supported by the housing, and a knob supported by the housing. The reel can be configured so that cable is gathered in the channel formed in the spool when the spool is rotated in a first direction relative to the housing, and so that cable can be incrementally released from the spool when the spool is rotated in a second direction relative to the housing. In some embodiments, the reel can include a rotation limiter which can be configured to prevent over-tightening of the lacing system and/or to prevent rotation past the substantially fully loosened state.

A carrier system for use with a body armor garment that distributes the shoulder loads produced by equipment carried or worn by military or law enforcement personnel, away from the user's shoulders and comfortably to the hips. Heavy shoulder loads, which typically cause chronic back pain and can lead to compression of the spine, are significantly mitigated. The carrier system has a vertical back support and a belt for securing the device around the waist of the user. In addition to alleviating shoulder fatigue and spine compression, the device is light, comfortable, durable, adjustable and easy to maintain.

A carrier system for use with a body armor garment that distributes the shoulder loads produced by equipment carried or worn by military or law enforcement personnel, away from the user's shoulders and comfortably to the hips. Heavy shoulder loads, which typically cause chronic back pain and can lead to compression of the spine, are significantly mitigated. The carrier system has a vertical back support and a belt for securing the device around the waist of the user. In addition to alleviating shoulder fatigue and spine compression, the device is light, comfortable, durable, adjustable and easy to maintain.

A backpack may include a first panel having a first panel surface facing in a direction and a second panel. The second panel has a second panel first surface and a second panel second surface opposite the second panel first surface. The second panel first surface is inconspicuous. The second panel is pivotable relative to the first panel between (1) a concealment position in which second panel second surface faces the first panel surface and (2) a safety position in which the second panel second surface faces in the. The backpack further includes a safety optic formed on one of the first panel surface and the second panel second surface.

The disclosure includes a modular carrying system comprising a day bag, a luggage bag, and a main coupling system. In some embodiments, the main coupling system includes a first portion coupled to the day bag and a second portion coupled to the luggage bag. The main coupling system may be arranged and configured to detachably couple the day bag and the luggage bag together such that the front side of the day bag faces the back side of the luggage bag.

A garment's pelvic region includes an integrated, removable waistpack. The waistpack has a body portion disposed substantially between a first pair of opposing openings each leading into a respective elongate channel disposed along opposite sides of a waistband area of the pelvic region. The removable waistpack's body portion defines a compartment. Belt portions extend from opposing ends of the body portion through a respective opening in the first pair of opposing openings and through a respective channel and out a respective one of a second pair of opposing openings for the channels. Thereby the waistpack encircles the waistband region of the garment. The belt portions disposed in the channels are removably received in and concealed by the channels.