Seatbelt apparatus
First Claim
1. A seatbelt apparatus comprising:
- a tongue;
a buckle to which the tongue is configured to be attached;
a light-emitting element;
a power cable for supplying power to the light-emitting element; and
a current adjuster that is provided between the power cable and the light-emitting element,wherein the current adjuster is configured to allow a current to flow to the light-emitting element at a value larger than a minimum current value at which the light-emitting element can emit light when the tongue is not attached to the buckle, andwherein the current adjuster is configured to allow a current to flow to the light-emitting element at a value smaller than a maximum current value at which the light-emitting element cannot emit light when the tongue is attached to the buckle.
4 Assignments
0 Petitions
Accused Products
Abstract
The disclosed detection circuit for a seatbelt apparatus may include an attachment detection switch, first and second resistance elements, and an LED. The resistance value of the first resistance element may be set to a value which allows a current smaller than the maximum current value which cannot turn the LED on to flow through the LED when the attachment detection switch is in an OFF state. The resistance values of the first and second resistance elements can be set to values which allow a current larger than the minimum current value which can turn the LED on to flow through the LED when the attachment detection switch is in an ON state. A monitoring circuit may determine whether or not the tongue on the seat is attached to the buckle.
13 Citations
13 Claims
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1. A seatbelt apparatus comprising:
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a tongue; a buckle to which the tongue is configured to be attached; a light-emitting element; a power cable for supplying power to the light-emitting element; and a current adjuster that is provided between the power cable and the light-emitting element, wherein the current adjuster is configured to allow a current to flow to the light-emitting element at a value larger than a minimum current value at which the light-emitting element can emit light when the tongue is not attached to the buckle, and wherein the current adjuster is configured to allow a current to flow to the light-emitting element at a value smaller than a maximum current value at which the light-emitting element cannot emit light when the tongue is attached to the buckle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A seatbelt apparatus comprising:
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a tongue; a buckle to which the tongue is configured to be attached; a current adjuster comprising an attachment detection switch for detecting whether or not the tongue is attached to the buckle; and a power cable associated with the current adjuster, wherein the current adjuster is configured to allow a current having a value in a first range to flow to the power cable when the tongue is not attached to the buckle, and wherein the current adjuster is configured to allow a current having a value in a second range to flow to the power cable when the tongue is attached to the buckle. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A vehicle comprising:
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a plurality of seats; a seatbelt apparatus corresponding to each seat in the plurality of seats, wherein each seatbelt apparatus comprises; a tongue; a buckle to which the tongue is configured to be attached; a power cable; and a current adjuster associated with the power cable, wherein the current adjuster comprises an attachment detection switch, wherein the current adjuster is configured to allow a current having a value in a first range to flow to the power cable when the tongue is not attached to the buckle, and wherein the current adjuster is configured to allow a current having a value in a second range to flow to the power cable when the tongue is attached to the buckle; and a monitoring device for determining whether or not the tongues of the respective seatbelt apparatuses are attached to their corresponding buckles on the basis of a current flowing in the power cables corresponding to their respective seatbelt apparatuses.
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Specification