9Carrying caseThe NL-43 and NL-53 sound level meters (p.8), the VM-57 vibration level meter, and the KC-52A airborne particle counter (p.9) can each be housed within the new carrying case. The type and color of the cushioning are selected based on the specific product. Daisuke SakaueMechanical Design Research & Develop-ment Group, Research & Development De-partment, Research & Development Center. Joined Rion in 2002. For the first three years after joining the company, he worked in the Process Design Office, Product and Technical Development Section, where he designed robots and other equipment. Since then, he has been involved in designing and engi-neering product housings in his current department.time and cost to transport. For the NL-52 series sound level meters, an original case was made by using a blow-molding die procured for another product. But since the inner lining was also made with a die, each model required a separate and expensive die to produce, posing the issue of costs.“The new carrying case required a stylish design while ensuring stable pro-duction volumes, material procurement, and transportation costs. These were the requirements for the new carrying case.”In response, they opted for injec-tion-molded plastic, allowing for orig-inal design, high versatility, and stable was slippery when opening and closing the case. The lock was enhanced with additional protrusions for a better grip, seamlessly bleeding with the design. Appropriate cushioning material was selected for the interior of the case based on each product. Additionally, while ensuring a snug fit for protection, care was taken to allow some leeway for easy removal. They are still exploring the placement and shape of the hollows in the foam cushioning for easy removal.“The Mechanical Design Research & Development Group, where I work, is a section that mediates between developers and product designers to determine the design of product housings and other production. To reduce the initial cost of each product, they opted for a one-size-fits-all case and adapted the cushioning material inside the case for each product shape to enable safe transport.“What we focused on in particular in designing the carrying case was versatil-ity and robustness. The color and shape were selected to ensure the case's strength and compatibility with various Rion products. The Rion logo engraved on the front side and the ribbed backside that enhances the robustness of the case were born out of such deliberations. We also focused on enhancing its convenience as a carrying case.”parts. As before, we identified issues that needed resolution and gathered input from various stakeholders throughout the design process. When we present-ed our progress in the project in our company, the response wasn’t very positive. However, quality improved as we incorporated feedback from various sources through trial and error during development. The final product was well-received. While I may not be the type of engineer who paves his path with unwavering conviction, I find that I generate better ideas when others impose restrictions and conditions. I’m truly delighted when my designs take shape.”For example, one of the major design changes was the ribbed surfaces on the front and back side of the case, which makes it easy to stack multiple cases. For customers who use multiple Rion products, stacking the cases in a stable manner will save space in storage. In addition to the front of the case, model labels can be affixed to the left, right, and handle sides, making it easy to select the desired case from among multiple ones. Additional space for storing batteries and other tools necessary for work on the front side as well as a strap offer enhanced convenience of use.
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