US 12,241,799 B2
Load sensor device having shock absorber
Hisayuki Yazawa, Niigata-ken (JP); Tatsuru Ikarashi, Niigata-ken (JP); Hisanobu Okawa, Niigata-ken (JP); Ayako Otsuka, Niigata-ken (JP); and Daisuke Tsuchiya, Niigata-ken (JP)
Assigned to Alps Alpine Co., Ltd., Tokyo (JP)
Filed by Alps Alpine Co., Ltd., Tokyo (JP)
Filed on Dec. 2, 2022, as Appl. No. 18/074,339.
Claims priority of application No. 2022-010395 (JP), filed on Jan. 26, 2022.
Prior Publication US 2023/0236075 A1, Jul. 27, 2023
Int. Cl. G01L 1/18 (2006.01)
CPC G01L 1/18 (2013.01) 14 Claims
OG exemplary drawing
 
1. A load sensor device comprising:
a load sensor having a pressure receiver;
a housing accommodating the load sensor;
an elastic member for receiving a load and being pressed in a load application direction towards the load sensor, the elastic member having a first elastic modulus;
a pressing member provided between the elastic member and the load sensor, the pressing member receiving the load from the elastic member and thereby applying a pressure onto the pressure receiver, the pressing member including:
a rigid presser for coming into contact with the pressure receiver of the load sensor, the rigid presser having a second elastic modulus higher than the first elastic modulus; and
an elastic supporter supporting the rigid presser on the housing such that a gap is provided between the rigid presser and the pressure receiver in a state where no load is applied to the elastic member, the elastic supporter including a plate spring extending from the rigid presser in a direction intersecting the load application direction, and being configured to elastically deform to reduce the gap between the rigid presser and the pressure receiver when the load is applied to the elastic member; and
a shock absorber including a first soft elasticity member disposed on a side of the pressing member facing the load sensor, the first soft elasticity member allowing the rigid presser to come into direct contact with the pressure receiver, while the elastic supporter coming into contact with the first elasticity member, at least when the elastic supporter deforms, thereby shock absorber alleviates elastic deformation of the elastic supporter.