Patent ID: 9419496
Filing Date: 2016-08-16
CPC Classification: G05G,H01H,H02K

Claim Text:
1. An acceleration mechanism for a working section, the acceleration mechanism comprising: an operating section; the working section; a base; a first spring that acts between the operating section and the working section; and a third spring that acts between the working section and the base, the operating section being moved from a first position to a second position by an external force, the working section being moved between a third position and a fourth position in response to a motion of the operating section between the first position and the second position, the first spring causing the working section to be moved by elastic energy stored by an external force that is applied to the operating section, in a case where the working section is in at least either the third position or the fourth position, a retention force that causes the working section to be retained in that position acting on the working section, a direction in which the force of the third spring is applied to the working section when the working section is in the third position being not parallel to a direction in which the force of the third spring is applied to the working section when the working section is in the fourth position, a component which, of the force of the third spring, acts in a direction of motion of the working section being smaller when the working section is in the fourth position than in the third position, wherein that a direction of return of the working section from the fourth position to the third position is positive.