Aisin Seiki Kabushiki Kaisha

Naoka Kawajiri

Hiroyuki Fujii

Muneto Inayoshi

Yoshimasa Asano

Kan Ichihara

Koji Ito

Takeshi Kuwabara

Hideki Kawabata

Kenji Maeta

Hajime Shiohara

A load detection device for a vehicle seat mounted between a floor side mounting mechanism and a seat side mounting mechanism and measuring a load applied by an occupant seated on the vehicle seat, includes a shaft member adapted to be fixed to one of the floor side mounting mechanism and the seat side mounting mechanism, a strain generating member fixed to the shaft member and including a hole into which the shaft member is press-fitted, a strain gauge attached to the strain generating member, the shaft member of which surface hardness is specified to be lower than a surface hardness of the hole and including a scraping projecting portion scraped off by means of the hole in a case where the shaft member is press-fitted to the hole, and an inter space formed between the strain generating member and the shaft member and positioned next to the scraping projecting portion.

Vehicle seat load detection device having interspace to receive projecting portion scraped off from press-fitted shaft member

A seat apparatus for a vehicle, includes a seat-side fixing member, a slide rail, a load detecting device disposed between the seat-side fixing member and the slide rail and arranged at an end portion of the slide rail on a rear side of the vehicle, and a bracket arranged at an end portion of the slide rail on a front side of the vehicle, the bracket supporting the seat-side fixing member. The bracket includes a lower attachment portion attached to the slide rail, a supporting portion extending from the lower attachment portion toward an upper side of the vehicle, and an upper attachment portion connected to the supporting portion so as to extend from the supporting portion toward the rear side of the vehicle, thereby being cantilever-supported by the supporting portion, and attached to the seat-side fixing member at a free-end side of the upper attachment portion.

Vehicle seat apparatus having load detecting device

A load detection device for a vehicle seat mounted between a floor side mounting mechanism made of metal and a seat side mounting mechanism made of metal and measuring a load applied by an occupant seated on the vehicle seat includes a strain generating body adapted to be fixed via both end portions to a fitting surface formed at one of the floor side mounting mechanism and the seat side mounting mechanism while having a predetermined clearance from the fitting surface, a strain gauge attached to the strain generating body, a bracket made of metal and including an attachment portion that extends laterally relative to the strain generating body, and an amplifier substrate mounted on the attachment portion while being arranged in parallel to the strain generating body, both surfaces of the amplifier substrate being covered by one of or more of the bracket, the floor side mounting mechanism and the seat side mounting mechanism, the amplifier substrate amplifying a signal output from the strain gauge.

Load sensor for vehicle seat with an attached amplifier substrate shielded by an attached metal bracket and the sensor mounting mechanism

A load detection device includes a strain generating body having first and second holes at first and second ends of the strain generating body, a strain gauge attached on the strain generating body, first and second fixing members having first and second middle shaft portion press-fitted into the first and second holes, respectively, and having first and second end shaft portions protruding from the first and second middle shaft portions, respectively, a bracket member having first fixing portion including a first fixing hole into which the first end shaft portion is press-fitted, and a second fixing portion, integrally connected to the first fixing portion and including a second fixing hole into which the second end shaft portion is inserted with a clearance therebetween, a press-fit fixing member press-fitted onto the second end shaft portion, and a connecting shaft integrally connected to the strain generating body.

Load detection device

A load detecting apparatus includes a strain member, a supporting member, a load input member and a strain detecting element. The supporting member is employed for supporting the strain member at a supporting portion thereof. The load input member is supported by the strain member and strains the strain member when an external load is applied thereon. The strain detecting element is provided at at least a surface of the strain member for detecting the strain generated by the load input member. Further, an outer end of the supporting portion located outwardly relative to the load input member is fixed to the strain member.

Growing community of inventors

Kariya, Japan

Naoka Kawajiri