A clevis pin (connecting pin) (26) is inserted into a clearance hole (72), and is displaceable relative to an operating pedal (16). A pivotal moving link (68) is disposed between the clevis pin (26) and a sensor pin (64) of a load sensor (30). A reaction force applied from the clevis pin (26) to the
A clevis pin (connecting pin) (26) is inserted into a clearance hole (72), and is displaceable relative to an operating pedal (16). A pivotal moving link (68) is disposed between the clevis pin (26) and a sensor pin (64) of a load sensor (30). A reaction force applied from the clevis pin (26) to the load sensor (30) always acts in a substantially constant direction (substantially leftward in FIG. 1A) even if the operating pedal (16) and an operating rod (22) are pivoted relatively around the axis of the clevis pin (26) in accordance with the depressing operation of the operating pedal (16). Thus, the detecting accuracy of the load sensor (30) is heightened, and variation in detecting accuracy is prevented, rendering the high reliability.
대표청구항▼
1. A vehicular operating pedal device with a load sensor, comprising: an operating pedal movably disposed on a pedal support fixed to a vehicle and depressed by a driver;a reaction force member to which an operating force of the operating pedal is transmitted and on which a reaction force correspond
1. A vehicular operating pedal device with a load sensor, comprising: an operating pedal movably disposed on a pedal support fixed to a vehicle and depressed by a driver;a reaction force member to which an operating force of the operating pedal is transmitted and on which a reaction force corresponding to the operating force is acted;a pivotal movement connecting portion placed between the operating pedal and the reaction force member, connecting a pair of members about a connecting pin relatively pivotable, and transmitting the operating force through the connecting pin;a load sensor, disposed in a sensor housing hole with a predetermined clearance formed in a sensor arranging member in the pivotal movement connecting portion to receive a load in a predetermined direction for electrically detecting the operating force, regardless of variation of the direction of the reaction force relative to the operating pedal input from the reaction force member in accordance with a depression of the operating pedal, the load sensor including a shaft member, a main body member disposed to be relatively displaced to the shaft member in a direction perpendicular to an axis thereof, a deforming member spanned over the shaft member and the main body member, and strain detecting elements fixed to the deforming member and detecting a deformation caused in the deforming member by allowing relative displacement between the shaft member and the main body member in the direction perpendicular to the axis of the shaft member based on the reaction force;a pivotal moving link disposed on the sensor arranging member to be pivotable around a first supporting pin parallel to the connecting pin in the pivotal movement connecting portion, the pivotal moving link connected relatively pivotable to the connecting pin that is inserted into an elongated hole formed in the sensor arranging member to be displaceable relative to the sensor arranging member, and connected to one of the shaft member and the main body member of the load sensor to be pivoted around the first supporting pin by the operating force applied from the connecting pin or by the reaction force; anda swinging lever disposed on the sensor arranging member, connected to a second supporting pin parallel to the connecting pin to be swingable around the second supporting pin, and connected to the other of the shaft member and the main body. 2. The vehicular operating pedal device with the load sensor according to claim 1, wherein, when viewed from a direction of the axis of the first supporting pin, the second supporting pin is disposed such that a straight line connecting an axis of the second supporting pin and an axis of the other of the main body member and the shaft member connected to the swinging lever, intersects with a straight line connecting an axis of the first supporting pin and an axis of the one of the main body member and the shaft member connected to the pivotal moving link at a substantially right angle. 3. The vehicular operating pedal device with the load sensor according to claim 1, wherein the second supporting pin is disposed at a position where, with the pivotal moving link pivoted around the first supporting pin in accordance with a depression of the operating pedal, a tensile force is acted on the swinging lever. 4. The vehicular operating pedal device with the load sensor according to claim 1, wherein the sensor arranging member is a plate shaped member pivotably connected relative to the reaction force member through the pivotal movement connecting portion, and is provided with the sensor housing hole passing therethrough;the main body member projects from both axial sides of the sensor housing hole, and a sensor pin passing through the axis of the shaft member is disposed to project from both axial sides of the main body member;the pivotal moving link is a first pivotal moving link;the swinging lever is a first swinging lever;the vehicular operating pedal device further includes a second pivotal moving link and a second swinging lever; andthe first and second pivotal moving links and the first and second swinging levers are disposed at both sides of the sensor arranging member, respectively, and are connected to both axial ends of the main body member or the sensor pin, respectively. 5. The vehicular operating pedal device with the load sensor according to claim 1, wherein the operating pedal is disposed on the pedal support pivotably around a supporting axis, and the operating pedal serves as the sensor arranging member. 6. The vehicular operating pedal device with the load sensor according to claim 1, further comprising an intermediate lever disposed pivotably on the pedal support, connected to the operating pedal through a connecting link, and pivotally connected relative to the reaction force member through the pivotal movement connecting portion, and the intermediate lever serves as the sensor arranging member. 7. The vehicular operating pedal device with the load sensor according to claim 1, wherein the deforming member has a hollow cylindrical shape;one axial end and the other axial end of the cylindrical deforming member are integrally fixed to the main body member and the shaft member, respectively; andthe strain detecting elements detect a shear strain caused in the deforming member based on the relative displacement between the main body member and the shaft member by the reaction force. 8. An operating device with a load sensor, comprising: an operating member that is moved to be operated, wherein the operating member is an operating pedal;a reaction force member to which an operating force of the operating member is transmitted and on which a reaction force corresponding to the operating force is acted;at least one pivotal movement connecting portion, placed between the operating member and the reaction force member, to connect a pair of members about a connecting pin relatively pivotable, and to transmit the operating force through the connecting pin;a load sensor disposed in a sensory housing hole with a predetermined clearance formed in a sensor arranging member that is one of the pair of members to be connected through the connecting pin, electrically detecting the operating force, and including a shaft member, a main body member disposed to be relatively displaced to the shaft member in a direction perpendicular to an axis thereof, a deforming member spanned over the shaft member and the main body member, and strain detecting elements fixed to the deforming member, the strain detecting elements detecting a deformation caused in the deforming member by allowing a relative displacement between the shaft member and the main body member in the direction perpendicular to the axis of the shaft member based on the reaction force;at least one pivotal moving link disposed on the sensor arranging member to be pivotable around a first supporting pin parallel to the connecting pin in the pivotal movement connecting portion, the pivotal moving link connected relatively pivotable to the connecting pin that is inserted into an elongated hole formed in the sensor arranging member to be displaceable relative to the sensor arranging member, and connected to one of the shaft member and the main bed member of the load sensor to be pivoted around the first supporting pin by the operating force applied from the connecting pin or by the reaction force; anda swinging lever disposed on the sensor arranging member, connected to a second supporting pin parallel to the connecting pin to be swingable around the second supporting pin, and connected to the other of the shaft member and the main member.
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