Passenger's weight measurement device for vehicle seat and attachment structure for load sensor
First Claim
1. A passenger'"'"'s weight measurement device for a vehicle seat, comprising:
- a pair of side frames for supporting the seat;
a pair of slide rails arranged in a vehicle floor;
the slide rails include a pair of first slide rails and a pair of second slide rails which are connected so as to be slidable respectively, the pair of first slide rails extend in parallel to be fixed to the vehicle floor side, and the second slide rails extend in parallel to the first slide rails, a pair of side frames for supporting the seat and disposed above the pair of slide rails,load cells disposed at four corners of the pair of slide rails and disposed between the pair of the second slide rails and the pair of the side frames,a set of first connection frames for connecting both ends the pair of side frames extending in parallel so as to be perpendicular to the pair of side frames, the pair of side frames and the set of first connection frames constitute a rectangular seat frame,a second connecting frame for connecting middle parts of the pair of first slide rails so as to be perpendicular to the first slide rails, the pair of the first slide rails and the second connecting frame constitute an H-shaped frame,a third connecting frame for connecting middle parts of the pair of second slide rails so as to be perpendicular to the second slide rails, the pair of the second slide rails and the third connecting frame constitute an H-shaped frame.
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Accused Products
Abstract
There is disclosed a passenger'"'"'s weight measurement device for a vehicle seat, capable of suppressing generation of an initial load. The passenger'"'"'s weight measurement device includes an upper rail disposed to be movable back and forth on a lower rail fixed to a vehicle floor; a load sensor fixed on the upper rail; and a frame disposed on the load sensor and below a vehicle seat, wherein a rod extends from the load sensor to penetrate the frame and to be inserted into an insertion hole formed in a center of a leaf spring, the leaf spring is curved into an angle shape to separate the center of the leaf spring from the frame, a nut is engaged with the rod on the leaf spring, and both hems of the leaf spring abut on the frame in a state that the leaf spring is fastened by the nut.
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Citations
16 Claims
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1. A passenger'"'"'s weight measurement device for a vehicle seat, comprising:
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a pair of side frames for supporting the seat; a pair of slide rails arranged in a vehicle floor; the slide rails include a pair of first slide rails and a pair of second slide rails which are connected so as to be slidable respectively, the pair of first slide rails extend in parallel to be fixed to the vehicle floor side, and the second slide rails extend in parallel to the first slide rails, a pair of side frames for supporting the seat and disposed above the pair of slide rails, load cells disposed at four corners of the pair of slide rails and disposed between the pair of the second slide rails and the pair of the side frames, a set of first connection frames for connecting both ends the pair of side frames extending in parallel so as to be perpendicular to the pair of side frames, the pair of side frames and the set of first connection frames constitute a rectangular seat frame, a second connecting frame for connecting middle parts of the pair of first slide rails so as to be perpendicular to the first slide rails, the pair of the first slide rails and the second connecting frame constitute an H-shaped frame, a third connecting frame for connecting middle parts of the pair of second slide rails so as to be perpendicular to the second slide rails, the pair of the second slide rails and the third connecting frame constitute an H-shaped frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A passenger'"'"'s weight measurement device for a vehicle seat, comprising:
- a pair of slide rails arranged in a vehicle floor;
a pair of side frames for supporting the seat; and
load cells disposed at four corners of the pair of slide rails and disposed between the pair of slide rails and the pair of the side frames,wherein the pair of side frames constitute a rectangular seat frame with a set of first connection frames for connecting both ends of the pair of side frames extending in parallel so as to be perpendicular to the pair of side frames, and the set of first connection frames, one of the first connection frames is connected to ends of the pair of side frames with a notch so as to be easily deformed by shock having a predetermined or more strength.
- a pair of slide rails arranged in a vehicle floor;
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13. A passenger'"'"'s weight measurement device for a vehicle seat, comprising:
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a pair of side frames for supporting the seat; a pair of slide rails arranged in a vehicle floor; the slide rails include a pair of first slide rails and a pair of second slide rails which are connected so as to be slidable respectively, the pair of first slide rails extend in parallel to be fixed to the vehicle floor side, and the second slide rails extend in parallel to the first slide rails, a pair of side frames for supporting the seat and disposed above the pair of slide rails, and load cells disposed at four corners of the pair of slide rails and disposed between the pair of slide rails and the pair of the side frames, wherein the pair of side frames constitute a rectangular seat frame with a set of first connection frames for connecting both ends of the pair of side frames extending in parallel so as to be perpendicular to the pair of side frames, and the set of first connection frames, a third connecting frame for connecting middle parts of the pair of second slide rails so as to be perpendicular to the second slide rails, the pair of the second slide rails and the third connecting frame constitute an H-shaped frame, wherein the third connecting frames includes a pipe member and a pair of angle members which are connected to both ends of the pipe member, the pair of angle members are connected to a top surface of the pair of second slide rails, and the angle members are extend upward from the top surface of the second slide rails.
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14. A passenger'"'"'s weight measurement device for a vehicle seat, comprising:
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a pair of side frames for supporting the seat; a pair of slide rails arranged in a vehicle floor; the slide rails include a pair of first slide rails and a pair of second slide rails which are connected so as to be slidable respectively, the pair of first slide rails extend in parallel to be fixed to the vehicle floor side, and the second slide rails extend in parallel to the first slide rails, a pair of side frames for supporting the seat and disposed above the pair of slide rails, load cells disposed at four corners of the pair of slide rails and disposed between the pair of the second slide rails and the pair of the side frames, a set of first connection frames for connecting both ends of the pair of side frames extending in parallel so as to be perpendicular to the pair of side frames, the pair of side frames and the set of first connection frames constitute a rectangular seat frame, wherein the load cell comprises a male screw in one end and a flange in the other end located to face opposite to the one end, in the seat frame, four holes are formed to insert the male screws corresponding to an arrangement of the four load cells, the pair of second slide rails are fixed to the flanges, first elastic bushes are inserted into a pair of first holes located on one diagonal line among the four holes, a first collar is elastically disposed between the first elastic bush and the male screw, a plain washer and a conical spring washer are mounted on the first collar, and a nut is fastened to the male screw, in a region of the seat frame, which is engaged with the pair of male screws located on the one diagonal line, an up-and-down moving amount is regulated by a length of the first collar in an axial direction, and the conical spring washer presses the seat frame to the load cell side. - View Dependent Claims (15, 16)
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Specification