A pressure relief system for a bag including a backplate having a first end and a second end, opposing front and back sides, first and second sides, and a central region between the first and second sides. A first strap is mounted adjacent the first end of the backplate on the front side and adjacent the first side. A second strap is mounted adjacent the first end of the backplate on the front side and adjacent the second side. The first strap and the second strap cross one another on the back side of the backplate between the first end and the second end. The first strap and the second strap exert a force on the back side of the backplate where the first strap and the second strap cross one another.

A backpack with inflatable air cushions integrated onto shoulder straps, back side of the backpack, and hip belt to enhance comfort and support and reduce body fatigues especially on shoulders and back when carrying a load. The backpack includes a main container with front, back, sides, top, and bottom portions, the back portion including an inflatable air cushion; a pair of shoulder straps having two ends with one end connecting to the upper back side of the container, and one end connecting to the low back side or bottom portion of the container, such that the shoulder straps are inflatable to form air cushions; and a removable hip belt with air cushions to transfer weight to the hip.

A portable lumbar cushion support attachment for backpacks for providing support to the lower spine and surrounding para-lumbar musculature of the wearer. The present invention is for a memory foam cushion which adjustably supports the lower spine in a proper position, alleviating lower back pain caused by improper posture and fatigue and also preventing further instances of lower back pain. In one embodiment, side straps are attached onto the bottom triangular strap regions of the backpack. The cushion is hemi-elliptical design which is positioned horizontally in the lower back region such that the cushion supports the spine and the surrounding musculature and the L1-L5 vertebrae. The cushion extends outwards, pushing against the lumbar spine, causing pressure to be created against the backpack and into the lower back, thus alleviating back pain and maintaining the lower back in its natural straight position.

A backpack support system has a frame, which is equipped with shoulder straps and preferably also a waist belt and which preferably inherently rigid so hat the loads that occur during use, the frame only flexes by inevitable amounts in the millimeter range by which any rigid body flexes when subjected to a load. A bike mount is fastened to the frame. The bike mount is embodied so that the bike, almost exclusively by its frame or frame components such as the rear fork can be fastened directly to the frame, i.e. without luggage or a pack compartment being situated between the bike and the frame in the points at which the bike rests directly against the frame. When properly fastened, the bike is thus affixed to the frame so that it cannot move.

A back support frame attachment system for a container, such as a backpack. A back support frame has a slot at its bottom end. A back portion of a container has a sleeve at its top end and a strap at its bottom end. The top end of the back support frame is insertable into the sleeve at the top end of the back portion and the strap is positionable through the slot in the bottom end of the back support frame. A first portion of the strap has hook material and a second portion of the strap has loop material, or vice versa. A folded middle portion of the strap is insertable through the slot at the bottom end of the back support frame such that the hook material can be attached to the loop material. The strap is operable to disconnect the bottom end of the back support frame from the bottom end of the back portion when a free end of the strap is pulled.

The invention discloses a two-way adjustable shock-absorbing backpack, comprising a backpack main body and back pads arranged on one side of the backpack main body, wherein the back pads are provided two, and the two are symmetrically arranged on the backpack main body, a back pad pocket with a top opening is formed between the back pad and the backpack main body, a support fabric bag is sewn into the back pad pocket, and a support rod is inserted into the inside of the support fabric bag, one side of the backpack main body above the support fabric bag is provided with a fixed fabric belt, in the invention, by adjusting the length of the secondary braces on the upper adjustment button, the shock-absorption adjustment of the top of the backpack is realized, by adjusting the lower adjustment button, the shock-absorbing stroke adjustment of the elastic band is realized.

A backpack tool system and a backpack power supply apparatus for use with an electric tool. The backpack power supply apparatus includes a battery pack for providing electric energy, a body for carrying the battery pack, and a wearable device connected to the body and wearable by a user to carry the body. The battery pack is detachably connected to the body. The body defines a plane and a height extending in a heightwise direction. The body is at least partially symmetrical about the plane. The wearable device includes a strap, which includes an upper end connected to an upper portion of the body. The upper end of the strap applies a force to the body when the user wears the wearable device. An included angle between a projection of a direction of the force on the plane and the heightwise direction is greater than or equal to 30 degrees and less than or equal to 50 degrees.

A hybrid carrier, such as a backpack, is disclosed having a hard shell interior carrier and a soft outer carrier. The hard shell interior carrier has a body with an openable top. The shape of the body of the hard shell interior carrier and the inside shape of the soft outer carrier are complementary so that the hard shell interior carrier form fits into the inside of the soft outer carrier. The soft outer carrier includes attachment devices that are joined to attachment device receivers on the hard shell interior carrier to removably attach the hard shell interior carrier to the soft outer carrier. The soft outer carrier may include handles, backpack straps and/or waist straps for easy carrying.

A harness assembly for an electrical appliance includes an upper support assembly and a lower support assembly. The upper support assembly includes an upper back pad and at least one shoulder strap emanating from the upper back pad. The upper back pad includes an upper pocket that receives an upper mounting plate of the electrical appliance therein, and an upper flap selectively connectable to the upper pocket to close the upper pocket and retain the upper mounting plate within the upper pocket. The lower support assembly includes a lower back pad and a waist belt emanating from the lower back pad. The lower back pad includes a lower pocket that receives a lower mounting plate of the electrical appliance therein, and a lower flap selectively connectable to the lower pocket to close the lower pocket and retain the lower mounting plate within the lower pocket.