A wearable battery pack includes a battery pack body, a battery cell and a housing accommodating a battery cell and a wearable device capable of wearing so that the battery pack body at least be worn on a user's back. The battery pack body has a heat dissipation channel running through one side of the battery pack body to the opposite side. The side of the battery pack body which is penetrated by the heat dissipation channel is located between the back of the user and the other side when the user carries the battery pack body.

A wearable battery pack includes a battery pack body, a battery cell and a housing accommodating a battery cell and a wearable device capable of wearing so that the battery pack body at least be worn on a user's back. The battery pack body has a heat dissipation channel running through one side of the battery pack body to the opposite side. The side of the battery pack body which is penetrated by the heat dissipation channel is located between the back of the user and the other side when the user carries the battery pack body.

A harness has a support base and a support strap unit for the support base, and a holding device for releasably holding a battery pack in a support position on the support base. The holding device has a docking mechanism on the support base for pivotably docking the battery pack in a docking position, and a securing mechanism for securing the battery pack in the support position pivoted in towards the support base with respect to the docking position. The docking mechanism is arranged on a lower region of the support base, and the securing mechanism has a securing slide which is arranged displaceably on the support base between a release position and a securing position and has a securing hook, or a securing lever which is arranged pivotably on the support base between a release position and a securing position and has a securing bow. The securing hook or securing bow is designed to engage securely behind a corresponding mating securing element of the battery pack in the support position.

A backpack includes a frame, a pack attached to the frame to define an interior space, and at least one divider positioned within the interior space to define at least one compartment within the interior space. The frame and the pack define a horizontal direction, a vertical direction, and a depth direction within the backpack. The compartment positions at least one equipment within the interior space such that a center of mass of the backpack is centered on a backpacker's back when the backpacker is wearing the backpack centered in the horizontal direction and the vertical direction within the interior space.

A backpack includes a frame, a pack attached to the frame to define an interior space, and at least one divider positioned within the interior space to define at least one compartment within the interior space. The frame and the pack define a horizontal direction, a vertical direction, and a depth direction within the backpack. The compartment positions at least one equipment within the interior space such that a center of mass of the backpack is centered on a backpacker's back when the backpacker is wearing the backpack centered in the horizontal direction and the vertical direction within the interior space.

A wearable pack system includes: a support device; and a pack device coupled with the support device, the pack device including an accessory attachment arrangement including a hook panel and a loop panel which together are configured for selectively coupling with a hook and loop mechanism of at least one accessory device.

A wearable pack system includes: a support device; and a pack device coupled with the support device, the pack device including an accessory attachment arrangement including a hook panel and a loop panel which together are configured for selectively coupling with a hook and loop mechanism of at least one accessory device.

A frame for a rucksack that is convertible into a support for a person such as a chair or bed. Also, a rucksack including such a frame. A convertible frame for a rucksack comprises two main frame members connected together by a pair of extendable connectors; at least two leg members connected or connectable to the main frame members; and a flexible support attached or attachable to the main frame members to extend between the main frame members, the frame being convertible between a first configuration, in which the main frame members have a first distance between them, and a second configuration, in which the frame forms a support for a person and the main frame members have a second distance between them. Also, a rucksack comprising such a frame, a bag, a rear cover and shoulder straps.

A drive system includes a carrying device with a wearable carrying frame, an energy store carried by the carrying frame, and at least one electric drive motor carried by the carrying frame. A coupling device is configured to mechanically couple a work apparatus to the drive system. The carrying device is formed as a shoulder bag or backpack, having at least one strap that permits the carrying device to be worn over a shoulder of a user. Two straps may be provided that permit the carrying device to be worn over both shoulders of a user. Also disclosed is a tool having such a drive system and a work apparatus, which may be concrete vibrator.

A drive system includes a carrying device with a wearable carrying frame, an energy store carried by the carrying frame, and at least one electric drive motor carried by the carrying frame. A coupling device is configured to mechanically couple a work apparatus to the drive system. The carrying device is formed as a shoulder bag or backpack, having at least one strap that permits the carrying device to be worn over a shoulder of a user. Two straps may be provided that permit the carrying device to be worn over both shoulders of a user. Also disclosed is a tool having such a drive system and a work apparatus, which may be concrete vibrator.