HOLLOW STRUCTURE

• Main Author: NAITO MASAYA
• Format: Patent
• Language: English; Japanese
• Published: 14.10.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a hollow structure capable of reducing braking risk of a connection part to a driving source such as a motor or to another structure, and excellent in lightness.SOLUTION: A hollow structure 1 has a hollow structure body 10, a joint part 50 provided on the hollow structure body 10, and having a center opening (joint opening), and recesses (a semi-cylindrical recess 21, a cylindrical recess 22) extending in an opening direction from the joint part 50 so as to enclose cylindrically open holes 56, 57, when the hollow structure body 10 exists in the opening direction of open holes 55, 56, 57, in the joining open holes 55, 56, 57 of the joint part 50.SELECTED DRAWING: Figure 2 【課題】モータ等の駆動源や他の構造体との接続部分の破壊リスクを低減し、軽量性に優れた中空構造体を提供する。【解決手段】中空構造体１は、中空構造体本体１０と、中空構造体本体１０に設けられ、中心開口（ジョイント開口）を有するジョイント部５０と、ジョイント部５０の締結用の貫通孔５５、５６、５７において、貫通孔５５、５６、５７の開口方向に中空構造体本体１０が存在する場合、前記貫通孔５６、５７を筒状に囲むように、ジョイント部５０から開口方向に延出する凹部（半筒状凹部２１、筒状凹部２２）を有する。【選択図】図２