Behind the scenes of the big hit! I worked on the "battery contacts" of the original game console.
We would like to introduce a case study on the development of battery contacts undertaken by Kyoei Kanamono Seisakusho. A spring trading company was looking for an OEM manufacturer but could not find a place that could realize the drawings designed by the manufacturer, so they turned to us. What was provided was a spring and the drawings created by the manufacturer's designer, but the drawings had issues, such as a high likelihood that the fit between the main body part (cover) and the mold for the main body cover would not match due to wear during mass production. 【A Twist in the Design】 ■ Resolution of Issues Through Preliminary Verification - Minimization of mold friction through prior tolerance adjustments - Increased strength by adding ribs to the hook section - Added catches to the cut-over section *For more details, please refer to the PDF document or feel free to contact us.
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【A Twist During Mass Production】 ■Cost Reduction Proposal - Initially, the design allowed for only 2 units to be produced, but considering the material yield efficiency, the design was changed to allow for 4 units. - For further cost reduction, processing was carried out using a high-speed press machine (300 RPM). *For more details, please refer to the PDF document or feel free to contact us.
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【Development Achievements】 ■ Sales of the spring trading company increased tenfold ■ Cumulative sales volume: 100 million units (3 million units per month) ■ Annual sales improved from 50 million to 500 million *For more details, please refer to the PDF document or feel free to contact us.
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Download All Catalogs![[Development Case] Battery Contacts](https://image.mono.ipros.com/public/catalog/image_generated/01/fe3/435216/435216_IPROS7096487589034627125_1.jpg?w=120&h=170)
Company information
Our company, Kyoeisha Co., Ltd., is a manufacturing company without its own factory. In the past, we had a full set of equipment for producing press machines and molds, as well as employee dormitories and a baseball team. However, as times changed and we sought to meet our customers' increasing demands, we began to face many issues, such as lost opportunities due to limitations of in-house equipment, and even if we introduced automation equipment, it took time to master that equipment and costs became high. In light of this, we have shifted to a system where we request cooperation from specialized factories for each process to propose the optimal quality and cost to our customers. (There are many factories specializing in parts processing around us and in nearby Higashi-Osaka.) Thanks to this, we have been able to focus on developing more complex and advanced products, and we have received high praise from many major manufacturers and partner companies. Moving forward, we will continue to pursue satisfying proposals that add a twist to a more competitive society, striving to realize a manufacturing industry that thrives together.
![[Research Material] World Market for Electrical Contacts & Contact Materials](https://image.mono.ipros.com/public/product/image/3a1/2001481125/IPROS90485450282097851528.jpeg?w=280&h=280)
![[Prototype Example] Issues such as limited budget, difficult processing, and lack of time.](https://image.mono.ipros.com/public/product/image/1c6/2001480387/IPROS87804030622817144813.jpeg?w=280&h=280)
