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US 8,540,047 B2Granted
Passenger's weight measurement device for vehicle seat and attachment structure for load sensor
AssigneeTs Tech Co., Ltd.
InventorsWataru Takayasu, Shinya Ishima, Shigeru Endo, Kenji Sato
Life of this patent
Estimating the term…
Abstract
A lower rail is fixed to a vehicle floor, and an upper rail is movable in a rear and front direction with respect to the lower rail. A load sensor is fixed to an upper surface of the upper rail. A rectangular frame is attached onto the load sensor, a rod of the load sensor sequentially penetrates a web of the rectangular frame and a spring holder upward, and a coil spring is wound around the rod. A nut is screwed to the rod, and the nut tightens a bottom of a cup portion of the spring holder. The coil spring is sandwiched between a flange of the spring holder and the web and is compressed by tightening the nut.
Claims51
A passenger's weight measurement device for a vehicle seat, comprising:
- lower rails that are attachable to a floor of a vehicle;
- a movable member of an upper rail side including side frames, the movable member being provided so as to move in a front-back direction with respect to the lower rails;
- a load sensor having a rod and a main body;
- an insertion hole portion formed at the movable member, through which the rod of the load sensor is inserted;
- a ring-shaped bush member that is inserted through the insertion hole portion;
- and
- a cylindrical member that is disposed between the ring-shaped bush member and the rod, wherein
- the cylindrical member is inserted in the ring-shaped bush member so that an outer surface of the cylindrical member contacts an inner surface of the ring-shaped bush member
- the cylindrical member defines a projecting portion and a cylinder portion,
- the projecting portion projects outside from the cylinder portion in a radial direction,
- the projecting portion is disposed at a load sensor main body side of the cylindrical member, and
- the projecting portion contacts the main body of the load sensor.
9 more elements
A passenger's weight measurement device for a vehicle seat, comprising:
- lower rails that are attachable to a floor of a vehicle;
- a first movable member of an upper rail side that is provided so as to move in a front-back direction with respect to the lower rails;
- a load sensor which is fastened to the first movable member, the load sensor having a threaded rod portion;
- a second movable member of a side-frame side that supports a part of the load sensor;
- an insertion hole portion formed at the second movable member, through which the threaded rod portion of the load sensor is inserted;
- a ring-shaped bush member that is inserted through the insertion hole portion, the ring-shaped bush member engaging with an edge of the insertion hole portion;
- and
- a cylindrical member that is disposed between the ring-shaped bush member and the threaded rod portion, wherein
- an outer surface of the cylindrical member engages with an inner surface of the ring-shaped member,
- the cylindrical member defines a projecting portion and a cylinder portion,
- the projecting portion projects outside from the cylinder portion in a radial direction,
- the projecting portion is disposed at a load sensor main body side of the cylindrical member, and
- the projecting portion contacts a main body of the load sensor.
10 more elements
A passenger's weight measurement device for a vehicle seat, comprising:
- lower rails that are attachable to a floor of a vehicle;
- a first movable member of an upper rail side that is provided so as to move in a front-back direction with respect to the lower rails;
- a load sensor that is fastened to the first movable member, the load sensor having a threaded rod portion;
- a second movable member of a side-frame side that supports a part of the load sensor;
- an insertion hole portion formed at the second movable member, through which the threaded rod portion of the load sensor is inserted;
- a ring-shaped bush member that is inserted through the insertion hole portion, the ring-shaped bush member engaging with an edge of the insertion hole portion;
- and
- a load transfer member that transmits a load from the second movable member to the load sensor, the load transfer member being arranged between the ring-shaped bush member and the threaded rod portion, wherein
- the load transfer member comprises a cylinder portion and a projecting portion,
- the cylinder portion is disposed between the ring-shaped bush member and the threaded rod portion,
- an outer surface of the cylinder portion engages with an inner surface of the ring-shaped bush member,
- the projecting portion projects outside from the cylinder portion in a radial direction,
- the projecting portion is disposed at a load sensor main body side of the cylinder portion, and
- the projecting portion contacts a main body of the load sensor.
11 more elements
A passenger's weight measurement device for a vehicle seat, comprising:
- lower rails that are attachable to a floor of a vehicle;
- a first movable member of an upper rail side that is provided so as to move in a front-back direction with respect to the lower rails;
- a load sensor that is supported by the first movable member, the load sensor having a rod;
- a second movable member of a side-frame side that supports a part of the load sensor;
- an insertion hole portion formed at the second movable member, through which the rod of the load sensor is inserted;
- a ring-shaped bush member that is inserted through the insertion hole portion;
- and
- a cylindrical member that is disposed between the ring-shaped bush member and the rod, wherein
- the cylindrical member is inserted in the ring-shaped bush member so that an outer surface of the cylindrical member contacts an inner surface of the ring-shaped bush member,
- the cylindrical member defines a projecting portion and a cylinder portion,
- the projecting portion projects outside from the cylinder portion in a radial direction,
- the projecting portion is disposed at a load sensor main body side of the cylindrical member, and
- the projecting portion contacts a main body of the load sensor.
10 more elements
Dependencies are inferred from the claim text.