Carrying system for backpacks with foldable support wheels and additional support unit
The foldable wheel system in backpacks redistributes weight to wheels, alleviating strain and health issues by transferring load upwards, achieving a 70-99% reduction in back and shoulder load.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- ABDUL RAHMAN IQBAL
- Filing Date
- 2025-09-18
- Publication Date
- 2026-05-07
AI Technical Summary
Conventional backpacks distribute weight almost exclusively across the back and shoulders via shoulder straps, leading to strain, pain, and potential health issues with extended use or heavy loads.
A carrying system with foldable wheels integrated into the backpack's lower part, allowing the backpack to be pulled like a trolley and transferring weight upwards to the wheels, accompanied by a telescopic handle and optional ground support, reducing the load on the back and shoulders.
The system reduces the effective load on the back and shoulders by 70% to 99% by transferring weight to the wheels, enhancing user comfort and stability.
Smart Images
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Abstract
Description
[0001] The present invention relates to a novel carrying system for backpacks, in particular for school, work or travel backpacks, which significantly reduces the strain on the user's back and shoulders.
[0002] With conventional backpacks, the weight is distributed almost exclusively across the back and shoulders via the shoulder straps (2). This can lead to tension, pain, and potential health problems if carried for extended periods or with heavy loads.
[0003] The invention therefore proposes a system with foldable wheels (4) which are integrated into the lower part of the backpack. • The wheels (4) can be unfolded if required, so that the backpack can be pulled like a trolley or easily supported on the ground. • When not in use, the wheels (4) are folded in to save space. • Additionally, a telescopic handle may be provided to facilitate handling.
[0004] A key feature of the invention is that the distance between the wheels (4) and the backpack body (1) is designed such that the weight of the bag is absorbed upwards and largely transferred to the wheels. This reduces the effective load on the back and shoulders by approximately 70% to 99%.
[0005] Furthermore, the system can have an additional support (7) which is fixed to the ground when stationary, while the wheels (4) are folded in. This keeps the bag stable without the user having to carry it.
[0006] Furthermore, the system can be implemented in an electric or automated version, in which the wheels (4) and support (7) are folded in or out by a motor or an automatic mechanism. This increases ease of use and expands the range of applications. 3. List of reference symbols 1 backpack body 2 shoulder straps 3 carrying handles 4 foldable wheels 5 Folding mechanism 6 Locking unit 7 foldable supports 8 Base plate for wheels and support 9 Brake unit for wheels 5. Drawings • Fig. 1: Rear view of the backpack with the wheels folded in • Fig. 2: Rear view of the backpack with wheels extended • Fig. 3: Detailed view of the folding mechanism (5), manual or electric • Fig. 4: Backpack with support open (7) and wheels folded in while stationary
Claims
[1] Carrying system for backpacks comprising at least two foldable wheels (4) attached in the lower area, which are movably connected to the backpack body (1) via a folding mechanism (5). [2] Carrying system according to claim 1, characterized by , that the wheels (4) can be folded into a base plate (8). [3] Carrying system according to one of claims 1 or 2, characterized by , that a carrying handle (3) is provided to facilitate handling. [4] Carrying system according to one of the preceding claims, characterized by , that the wheels (4) are fixed in the folded or unfolded position by a locking unit (6). [5] Carrying system according to one of the preceding claims, characterized by , that an additional foldable support (7) is provided which stabilizes the bag when the user is stationary. [6] Carrying system according to one of the preceding claims, characterized by, that the wheels (4) and the support (7) can be folded in or out by means of a manual or electric folding mechanism (5). [7] Carrying system according to one of the preceding claims, characterized by , that the distance between the wheels (4) and the backpack body (1) is designed to reduce the load on the user's back and shoulders by approximately 80% to 99%. [8] Carrying system according to one of the preceding claims, characterized by , that a base plate (8) is provided which supports the wheels (4) and the support (7). [9] Carrying system according to any one of the preceding claims, characterized by , that the folding mechanism (5) is supported by a spring. [10] Carrying system according to any one of the preceding claims, characterized by , that a brake unit (9) is provided to fix the wheels (4) in the unfolded position. [11] Carrying system according to one of the preceding claims, characterized by, that the axle of the wheels (4) is designed to be movable in order to be able to adjust the wheel spacing variably. [12] Carrying system according to any one of the preceding claims, characterized by , that wheels (4) can be provided in different sizes to cover different ground conditions.