Seat weight measuring apparatus
First Claim
1. A seat weight measuring apparatus for measuring a seat weight including the weight of a passenger sitting on a vehicle seat comprising:
- a base frame fixed to a vehicle floor;
front and rear rail brackets which are located near front and rear ends of the base frame, respectively, and are connected to a seat rail which is slidable in the frontward and rearward directions of the vehicle;
a sensor portion which is mounted on the base frame for detecting the load applied from the rail brackets to the base frame;
wherein the sensor portion includes a distortion sensor fixed at the middle in the longitudinal direction of the base frame and arms which are disposed at a front portion and a rear portion of the base frame, respectively, to extend in the longitudinal direction, each arm having at its one end a press portion for transmitting force to the distortion sensor and at its other end a connecting portion relative to the rail bracket;
wherein protective mechanisms are disposed around the front and rear rail brackets so that when the load applied on the rail brackets and the base frame exceeds a predetermined value, the protective mechanisms transmit the excessive load between the rail brackets and the base frame or the vehicle floor directly and not through the arms; and
wherein the protective mechanism at the rear side is provided with a reinforcing member for providing reinforcement against the load in a direction in which the rail brackets are lifted upward.
1 Assignment
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Accused Products
Abstract
A seat weight measuring apparatus having enough strength against load in a direction in which a rear side of the vehicle seat is lifted. The seat weight measuring apparatus includes a base frame with a mounting portion at the rear end side of the base frame. The mounting portion includes two stopper bolts as protective mechanisms for transmitting excessive load from a rear rail bracket to the base frame. One stopper bolt is a front (first) stopper bolt, and the other is a rear (second) stopper bolt. Therefore, the mounting portion has higher capability to withstand load than a mounting portion at the front end side of the base frame.
32 Citations
12 Claims
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1. A seat weight measuring apparatus for measuring a seat weight including the weight of a passenger sitting on a vehicle seat comprising:
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a base frame fixed to a vehicle floor;
front and rear rail brackets which are located near front and rear ends of the base frame, respectively, and are connected to a seat rail which is slidable in the frontward and rearward directions of the vehicle;
a sensor portion which is mounted on the base frame for detecting the load applied from the rail brackets to the base frame;
wherein the sensor portion includes a distortion sensor fixed at the middle in the longitudinal direction of the base frame and arms which are disposed at a front portion and a rear portion of the base frame, respectively, to extend in the longitudinal direction, each arm having at its one end a press portion for transmitting force to the distortion sensor and at its other end a connecting portion relative to the rail bracket;
wherein protective mechanisms are disposed around the front and rear rail brackets so that when the load applied on the rail brackets and the base frame exceeds a predetermined value, the protective mechanisms transmit the excessive load between the rail brackets and the base frame or the vehicle floor directly and not through the arms; and
wherein the protective mechanism at the rear side is provided with a reinforcing member for providing reinforcement against the load in a direction in which the rail brackets are lifted upward. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A seat weight measuring apparatus for measuring a seat weight including the weight of a passenger sitting on a vehicle seat comprising:
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a base frame fixed to a lower side of a seat frame below the vehicle seat;
front and rear rail brackets which are located near front and rear ends of the base frame, respectively, and are connected to a seat rail which is slidable in the frontward and rearward directions of the vehicle;
a sensor portion which is mounted on the base frame for detecting the load applied from the rail brackets to the base frame;
wherein the sensor portion includes a distortion sensor fixed at the middle in the longitudinal direction of the base frame and arms which are disposed at a front portion and a rear portion of the base frame, respectively, to extend in the longitudinal direction, each arm having at its one end a press portion for transmitting force to the distortion sensor and at its other end a connecting portion relative to each rail bracket;
wherein protective mechanisms are disposed around the front and rear rail brackets so that when the load applied on the base frame and the rail brackets exceeds a predetermined value, the protective mechanisms transmit the excessive load between the base frame and the rail brackets directly and not through the arms; and
wherein the protective mechanism at the rear side is provided with a reinforcing member for providing reinforcement against the load in a direction in which the base frame is lifted upward. - View Dependent Claims (8, 9, 10, 11)
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12. A seat weight measuring apparatus for measuring a seat weight including the weight of a passenger sitting on a vehicle seat, comprising:
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a base frame extending in the frontward and rearward directions of the vehicle;
rail brackets which are located near front and rear ends of the base frame, respectively, to interpose between the base frame and a seat rail which is slidable in the frontward and rearward directions of the vehicle;
a sensor portion which is mounted on the base frame;
wherein the sensor portion includes a distortion sensor fixed at the middle in the longitudinal direction of the base frame and arms which are disposed at a front portion and a rear portion of the base frame, respectively, to extend in the longitudinal direction, each arm having at its one end a press portion for transmitting force to the distortion sensor and at its other end with a connecting portion relative to the each rail bracket; and
wherein tip ends of the press portions of the arms are covered with resin caps.
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Specification