US 7,594,445 B2
Force sensor
Yusuke Hirabayashi, Wako (Japan); Takeshi Ohsato, Wako (Japan); Nobuhiro Sakurai, Wako (Japan); Shigenori Yasuie, Wako (Japan); and Hiroshi Yokobayashi, Wako (Japan)
Assigned to Honda Motor Co., Ltd., Tokyo (Japan)
Filed on Jun. 28, 2006, as Appl. No. 11/475,957.
Claims priority of application No. P2005-189017 (JP), filed on Jun. 28, 2005.
Prior Publication US 2007/0006668 A1, Jan. 11, 2007
Int. Cl. G01D 7/00 (2006.01); G01L 1/22 (2006.01)
U.S. Cl. 73—862.044  [73/862.041] 10 Claims
OG exemplary drawing
 
1. A force sensor comprising:
a force sensor chip having an active sensing portion to which a force is applied, a support portion for supporting the active sensing portion, and a force detector for detecting the force between the active sensing portion and the support portion; and
a buffering device for dampening and applying the imparted external force to the force sensor chip,
wherein the buffering device comprises:
an input portion to which the external force is input;
a sensor mount for fixing the force sensor chip;
a dampening mechanism for dampening the external force; and
a transmission portion for transmitting the dampened external force to the active sensing
wherein the damping mechanism includes a plurality of structures each having a bifurcated shape, and
wherein the bifurcated structures are spaced apart from each other on a periphery of the input portion and the sensor mount.