Development and design support through human and life engineering (easy-to-open containers for hand use)
[Procedure for Developing Easy-to-Open Containers] ■Classification of Containers by Opening Method Containers can be classified based on how they are opened. Please refer to the attached materials. ■Force (Torque) Required for Opening and Ease of Opening We measure the values (force or torque) associated with various actions people take to open containers, as shown below. Specifically, we use our proprietary measuring instruments to vary the force or torque required to open them. - Feels easy to open - Feels like this is the limit - Feels impossible ■Evaluation of Commercial Containers We have various people open commercially available containers, measuring the force or torque applied to the container at that time. We also gather their impressions (subjective evaluations) regarding ease of opening (or difficulty) and record their opening methods. Simultaneously, we measure the exerted force during their opening actions. ■Evaluation of Easy-to-Open Structures We devise and prototype shapes, structures, and materials that require less force or torque to open for various opening methods, and we measure the force or torque. ■Development into Products Among the devised prototypes, we incorporate items that can produce values of force or torque rated as "easy to open" into the final product.
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**Evaluation by Human and Life Engineering** ■Evaluation Method We will prepare various specifications for evaluation as shown below, have different people open them, and conduct evaluations according to the evaluation items. ■Evaluation Targets: Shape, material, and structure of lids and container bodies ■Evaluation Items (1) Subjective Evaluation: Ease of opening, etc. (2) Data on Human Characteristics: Hand strength, grip strength, hand size, acceptable opening force (3) Data on Containers: Force (torque) required to open each container (4) Data on Opening Actions: Load on the body (muscles), contact area between hand and container, posture, movements of the body (primarily hands and feet), etc. **Expected Outcomes** ■Insights (Data) - Force (torque) required to open commercially available containers - Daily strength of individuals (acceptable values when opening containers daily) ■Factors Related to Ease or Difficulty of Opening - Muscles under strain - Contact state between hand and container - Differences in posture and hand movements ■Container Specifications with High Output Force What shapes, materials, and structures will increase output force? ■Containers that are Easy to Open It is expected that the above results will be consolidated into the planning and development of "easy-to-open containers."
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HAL Design Research Institute Co., Ltd. is a company that conducts analysis, design, engineering, and consulting based on various measurements and measurement data. Our main product is the "Markerless 3D Motion Analysis System." We also offer a variety of other measurement services, so please feel free to contact us if you have any requests.
