Patent ID: 8424410
Filing Date: 2013-04-23
Classification: F16C,F16H,G05G,Y10T

Abstract:
1. A link mechanism that includes a plurality of link members, and connects a swinging portion and a non-swinging portion so that the swinging portion is swingable relative to the non-swinging portion, the link mechanism comprising: a base member fixed to the non-swinging portion; an output member fixed to the swinging portion; a first link member swingably provided on a part of the base member on one side of a swinging direction of the swinging portion; a second link member swingably provided on a part of the base member on an other side of the swinging direction of the swinging portion; a third link member swingably provided on a part of the output member on the side of the swinging direction; and a fourth link member swingably provided on a part of the output member on the other side of the swinging direction, wherein a swinging end of the third link member is swingably connected to the first link member, on a first connecting axis that is positioned at a part of the first link member on the side of the swinging direction and is farther from the non-swinging portion than the output member is, wherein a swinging end of the fourth link member on the other side of the swinging direction is swingably connected to the first link member, on a second connecting axis that is positioned at a part of the first link member on the other side of the swinging direction and is farther from the non-swinging portion than the output member is, and wherein a swinging end of the second link member is swingably connected to the fourth link member, on a third connecting axis that is positioned at a swinging end of the fourth link member on the side of the swinging direction.