CABLE HOLDING DEVICE OF ROBOT JOINT

PROBLEM TO BE SOLVED: To solve the problem of conventional cable holding devices, in which increasing the number of cables is difficult.SOLUTION: In a robot joint including a stationary body A and a movable body B that are connected to each other, the cable holding device holds multiple cables C disposed along the stationary body A and the movable body B. The stationary body A includes: a support body 2 that houses a rotary drive source 1; a stationary-side outer tube 3; and a stationary-side holding member 4 having a holding portion 10. The movable body B includes: a rotating body 5; a movable-side outer tube 6; and a movable-side holding member 7 having a holding portion 11. Each cable C is stored in a slack state, in a storage space F formed among the support body 2, the stationary and movable side outer tubes 3, 6, and the stationary and movable side holding members 4, 7. Slack of each cable causes each cable C to follow the rotation in unison. Capacity of the storage space F is used efficiently, thus enabling a great number of the cables C to be disposed without enlarging the storage space F.SELECTED DRAWING: Figure 1 【課題】従来のケーブル保持装置は、ケーブルの数を増加することが難しいという問題点があった。【解決手段】固定体Ａに可動体Ｂを連結したロボット関節において、固定体Ａ及び可動体Ｂに沿って配置される複数のケーブルＣを保持する装置であって、固定体Ａが、回転駆動源１を収容した支持体２と、固定側外筒３と、保持部１０を有する固定側保持部材４とを備え、可動体Ｂが、回転体５と、可動側外筒６と、保持部１１を有する可動側保持部材７とを備え、支持体２と固定側及び可動側の外筒３，６と固定側及び可動側の保持部材４，７との間で形成した収容空間Ｆに、各ケーブルＣを弛みを持たせた状態で収容し、各ケーブルＣを夫々の弛みにより一斉に回転に追従させる。収容空間Ｆの容積を有効利用し、収容空間Ｆを拡大せずに多数のケーブルＣを配置し得るものとした。【選択図】図１