MOTOR CYCLE SWING ARM

• Main Authors: ISHIZAKA YUTA, KUWABARA NAOKI
• Format: Patent
• Language: English; Japanese
• Published: 09.04.2020
• Subjects: CYCLE AXLE SUSPENSIONS; CYCLE FRAMES; CYCLE SIDE-CARS, FORECARS, OR THE LIKE; CYCLE STEERING DEVICES; CYCLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; PERFORMING OPERATIONS; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES; TRANSPORTING

To provide a motor cycle swing arm that includes an arm portion with an opening through which a drive member extends and that enables the arm portion to be made of a press material.SOLUTION: A motor cycle swing arm includes an arm portion (51, 61). The arm portion (51, 61) includes an inner member (53, 63) made of a press material and an outer member (52, 62) made of a press material. At least the outer material (52, 62) is made of a sheet of the press material. The outer member (52, 62) and the inner member (53, 63) include a drive member opening (70) oriented in the vehicle body front-to-rear direction. A cylindrical member (71) communicated with the outer member (52, 62) and the inner member (53, 63) is arranged in the drive member opening (70). A drive member (33) configured to drive the driving wheel (3) is inserted into the drive member opening (70).SELECTED DRAWING: Figure 6 【課題】駆動部材を挿通する開口を有するアーム部をプレス材で形成することを可能とした自動二輪車のスイングアームを提供する。【解決手段】アーム部（５１，６１）を備え、前記アーム部（５１，６１）は、プレス材からなる内側部材（５３，６３）と外側部材（５２，６２）とからなり、少なくとも前記外側部材（５２，６２）は、１枚のプレス材で構成され、前記外側部材（５２，６２）と前記内側部材（５３，６３）は、車体前後方向に指向する駆動部材用開口（７０）を備え、前記駆動部材用開口（７０）には、前記外側部材（５２，６２）と前記内側部材（５３，６３）とを連通する筒状部材（７１）を配設し、前記駆動部材用開口（７０）には、前記駆動輪（３）を駆動する駆動部材（３３）が挿通されている。【選択図】図６