The round hook is a hook shape that is resistant to breaking and deformation.
The spring in the photo is a breakage prevention product designed and prototyped by our company. It features a structure where a hook with a stop processing is incorporated into the body, referred to as a "drawn round hook" according to JIS standards. This hook shape is resistant to issues such as breaking and deformation. With a "drawn round hook," the body and hook can be designed separately. This allows for an increase in the strength of the hook without changing the spring's force (spring constant or load), making it an effective means when designing springs to be less prone to breaking. While not as strong as the "drawn round hook," the "round hook (large bend radius)" is also a hook shape that is resistant to breaking and deformation. From a cost perspective, the "round hook (large bend radius)" is advantageous, so I believe it is worth considering as well. For more information on round hooks, please refer to the related links. If you are experiencing troubles with springs, such as breakage or deformation, please feel free to consult us. If you send us broken samples, we will propose improvement measures. Tsurugaoka Spring Co., Ltd. Contact: Ujiie Phone: 0235-22-0407 FAX: 0235-22-0546 Email: web@tohj.com We also support web meetings.
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Tsuruga Spring Co., Ltd. is a spring manufacturer located in Tsuruoka City, Yamagata Prefecture. We specialize in the design and manufacturing of coil springs, as well as wire forming processing. 1) Our strength lies in our ability to respond quickly from design to prototyping. Are you facing issues such as springs breaking, deforming, or being weak? Our technical staff will respond carefully, so please feel free to consult with us. It's okay even if you don't have drawings. 2) We can accommodate a wide range of wire thicknesses from 0.1mm to 10.0mm. We stock piano wire, stainless steel wire for springs, oil-tempered wire, and phosphor bronze wire. We can also handle special spring materials that are outside JIS standards, such as Herculite and SWIC. Additionally, we can accommodate wire diameters exceeding 10mm through outsourcing. 3) We accept orders from one piece to tens of thousands of pieces. Technical Contact: Ujiie Phone: 0235-22-0407 FAX: 0235-22-0546 Email: web@tohj.com Tsuruga Spring Co., Ltd. 〒997-0011 3-10-25 Takarada, Tsuruoka City, Yamagata Prefecture