Provided is a conveyance seat on which a seated occupant can spend time comfortably in an interior space (cabin) of a conveyance. A conveyance seat S1 includes a seat cushion 1, a rail device 50 (base member) that supports the seat cushion from a downward side, and connecting links 41 and 42 (connecting members) which are interposed between the seat cushion 1 and the rail device 50 in an up to down direction, and connect the seat cushion 1 and the rail device 50. Downward portions of the connecting links 41 and 42 are attached to the rail device 50 through a connecting bracket 60, or are attached to the rail device 50. Lower end portions of the connecting links 41 and 42 are disposed on a downward side as compared with an upper end portion of the rail device 50.

A vehicle seat includes a seat cushion provided with a seat cushion frame, a front link configured to adjust a height of the seat cushion with respect to a base that is a slide rail or a vehicle body floor, and a front load detection sensor attached to an upper rail and configured to detect a load applied to the vehicle seat. The seat cushion frame includes a pair of side frames separated from each other in a seat width direction, the front link includes a first rotation shaft configured to be rotatable with respect to the seat cushion frame and a second rotation shaft configured to be rotatable with respect to the base, and the front load detection sensor is arranged at a position different from the second rotation shaft in a front to back direction of the seat.

A seat occupancy determination apparatus includes a seat belt attachment detection portion, a first and a second load detection sensors, a front-rear load sum computing portion, a front-rear load difference computing portion, a memory portion, an adult possibility determination portion, and a child safety seat determination portion determining a vehicle seat determined as possibly occupied by an adult is occupied by a child safety seat in a case where a first predetermined amount increase condition satisfies by a front-rear load difference value within a time range between a time of engagement and a first time point increases by a first predetermined amount or more from the value at the first time point or earlier and a second predetermined amount decrease condition satisfies by the front-rear load difference value decreases by a second predetermined amount or more within a time range between the time of engagement and a second time point.

A vehicle seat includes a pair of side frames and a load sensor. The load sensor is provided at a lower portion of the side frame or below the side frame. The vehicle seat further includes a supporting member which is connected to the side frame and which supports a seated person. The supporting member includes a seat portion which receives a weight of a seated person. The seat portion is provided below the load sensor.

A B-surface seat occupancy sensor unit (10) comprises a support plate (12) having a top surface (20) and a bottom surface, a plurality of spacer elements (14), which define an upper surface (18) of the unit. The top surface of the support plate is arranged recessed the upper surface. A first foam pad (22) is disposed between the spacer elements on the support plate. A recess (24) formed in the top surface of the support plate, underneath the first foam pad, accommodates a second foam pad (23) carrying a pressure-responsive membrane switch (26). The recess has a depth exceeding the total height of the pressure-responsive membrane switch and the second foam pad. The pressure-sensitive membrane switch projects laterally beyond opposite edges of the second foam pad.

A vehicle seat includes a base provided on a floor; a seat back pivotably provided on the base; a seat cushion pivotably provided on the seat back; and a reclining drive unit connected to the base and the seat back to make the seat back pivot relative to the base, wherein the reclining drive unit is disposed more rearward than a front end of the seat cushion.

To realize a biological information detection device capable of obtaining accurate biological information. The biological information detection device includes a radio wave sensor that detects a body surface displacement of a human body; a first vibration sensor that is disposed together with the radio wave sensor at a position away from the supporting surface that supports the human body; a second vibration sensor that is disposed closer to the supporting surface than the first vibration sensor; and a signal processing unit that generates a biosignal of the human body based on the body surface displacement obtained by the radio wave sensor, a first vibration component obtained by the first vibration sensor, and a second vibration component obtained by the second vibration sensor.

To provide an occupant determination device capable of improving reliability in results of determining an occupant's physique. An occupant determination device includes a tentative-determination processing unit provided in a seat of a vehicle and classifying a physique of an occupant seated on the seat by comparing a determination value set based on sensor values of a plurality of load sensors for detecting loads applied to the seat with predetermined load threshold values, and a determination processing unit determining the physique of the occupant by using tentative determination results by the tentative-determination processing unit, in which, when the number of the tentative determination results classified into a given class becomes equal to or larger than a predetermined threshold value in the tentative determination results of a predetermined number of samples, the determination processing unit determines the physique of the occupant to be the given class.

The present disclosure relates to a method for processing capacitance values generated by capacitive sensors with interdigitated electrodes supported by a seat of a vehicle.

A vehicle seat includes a seat cushion and a seatback. The vehicle seat has a plate-shaped pressure-receiving member configured to receive a load from an occupant seated on the vehicle seat and a radio wave sensor fixed to the pressure-receiving member. The radio wave sensor is configured to acquire information about the occupant by emitting radio waves toward the occupant and detecting the radio waves reflected off the occupant. The pressure-receiving member includes a plurality of first ribs that protrudes from a backside of the pressure-receiving member, which is a side facing away from the occupant, in a direction away from the occupant, and a plurality of second ribs that protrudes from the backside in a direction away from the occupant, the plurality of second ribs crossing the plurality of first ribs. The radio wave sensor includes at least one fixing part that is fixed to the pressure-receiving member. The at least one fixing part includes a first fixing part that is fixed to a surrounded area that is surrounded by the plurality of first ribs and the plurality of second ribs on the backside.