| 摘要 |
<P>PROBLEM TO BE SOLVED: To smoothly rotate a valve even if a body deforms in a throttle valve device. <P>SOLUTION: The throttle valve device 10 includes, in a passage 16 of a body 12 formed of a resin material, spindles 36a and 36b for holding bearings 42a and 42b which turnably support one end 14a and the other end 14b of a shaft 14. Each of the spindles 36a and 36b has a bearing holding part 40 capable of holding the bearings 42a and 42b whose outer peripheral surface is formed to be substantially spherical. The bearing holding part 40 has an inner peripheral surface dented to be spherical in a direction getting farther from the shaft 14. The outer peripheral surfaces of the bearings 42a and 42b are in slide contact with the inner peripheral surface of the bearing holding part 40. If such force that the shaft 14 gets eccentric by deformation of the body 12 is applied for example, the bearings 42a and 42b supporting the shaft 14 tilt at the bearing holding part 40, thereby keeping the shaft 14 in a turnable state. <P>COPYRIGHT: (C)2013,JPO&INPIT |
