JP2016139235A - Backward movement prevention device for pedal device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a backward movement prevention device for a pedal device for vehicle capable of easily and reliably suppressing a backward movement of an operation pedal with respect to the backward movement prevention device for the pedal device for vehicle suppressing the backward movement of the operation pedal, when a dash panel is displaced to the back side of the vehicle accompanied with the front collision of the vehicle.SOLUTION: A brake pedal device 1 includes: a first bracket 10; a second bracket 15; a turning shaft 20; an operation pedal 30; an intermediate lever 35; a coupling link 40; and a holding mechanism part 50. When the second bracket 15 abuts against a bracket C for collision, the second bracket 15 turns around the turning shaft 20, and is separated from the holding mechanism part 50, and alienates the operation pedal 30 from the first bracket 10. Since the operation pedal 30 is connected to the intermediate lever 35 installed in the first bracket 10 by the coupling link 40, the backward movement amount of the operation pedal 30 can be suppressed accompanied with the turning of the second bracket 15.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a reverse preventing device for a vehicular pedal device that suppresses the operation pedal from moving backward when a dash panel is displaced toward the rear side of the vehicle due to a frontal collision of the vehicle.

  2. Description of the Related Art Conventionally, for example, an invention described in Patent Document 1 is known as a reverse prevention device for a vehicle pedal device that suppresses the operation pedal from moving to the occupant side behind the vehicle body at the time of a frontal collision of the vehicle. The brake pedal retreat prevention device described in Patent Document 1 relates to a vehicle pedal device having a pedal bracket, a brake pedal, a first link corresponding to an intermediate lever, and a second link corresponding to a connection link, and the dash panel is operated by the dash panel. It is configured to suppress the stepped portion of the operation pedal from moving backward to the driver's seat side when being moved backward to the seat side.

  Specifically, in the brake pedal retreat prevention device described in Patent Document 1, the pedal bracket is between the main pedal bracket supported on the dash panel side, the sub pedal bracket supported on the instrument panel reinforcement side, and both. Consists of a pedal bracket support arranged. The brake pedal is supported so as to be swingable with respect to the pedal bracket, and is connected to the push rod via the first link and the second link. A bead is formed on the lower side of the sub pedal bracket and is configured to bend and deform when the load is input. Further, the arm portion of the first link corresponding to the intermediate lever is disposed so as to come into contact with the bottom wall portion of the sub-pedal bracket above the bead when the load is input.

  Therefore, the brake pedal retreat prevention device described in Patent Document 1 is not affected by the bending deformation of the sub pedal bracket, and the arm portion of the first link corresponding to the intermediate lever is connected to the vehicle by the bottom wall portion of the sub pedal bracket. The brake pedal can be pressed forward, and the tread surface of the brake pedal can be rotationally displaced about the support shaft toward the vehicle front side. Furthermore, in Patent Document 1, the pedal bracket support is fastened to the lower portion of the sub pedal bracket via a separation mechanism including a bolt and a nut. By separating from the above, the reverse amount of the brake pedal in Patent Document 1 is reliably suppressed.

Japanese Patent Laid-Open No. 2008-204096

  However, in the brake pedal retreat prevention device described in Patent Document 1, the pedal bracket is configured by a main pedal bracket, a sub pedal bracket, and a pedal bracket support. Therefore, in the case of this configuration, the number of parts constituting the brake pedal reverse prevention device is increased. In addition, since the sub-pedal bracket and the pedal bracket support are configured to be fastened by a separation mechanism including a bolt and a nut, it is difficult to appropriately set a separation load at which the pedal bracket support is detached from the sub-pedal bracket. . As a result, in the brake pedal retreat prevention device described in Patent Document 1, the pedal bracket support cannot be detached from the sub pedal bracket by the disengagement mechanism even in the event of a vehicle collision, and the retraction of the stepped portion of the brake pedal is suppressed. Therefore, there is a possibility that the anti-retraction action cannot be properly obtained.

  TECHNICAL FIELD The present invention relates to a reverse prevention device for a vehicle pedal device that suppresses a reverse operation of an operation pedal when a dash panel is displaced to the rear side of the vehicle due to a frontal collision of the vehicle. There is provided a vehicular pedal device reverse prevention device capable of suppressing the above.

  According to an aspect of the present invention, there is provided a vehicular pedal apparatus for preventing a reverse movement of a vehicle, a first bracket fixed to a dash panel on the front side of the vehicle, a second bracket disposed on the vehicle rear side with respect to the first bracket, An operation pedal, which is rotatably arranged by a first support shaft of the second bracket and has a step portion used for a stepping operation toward the front side of the vehicle, is disposed on the first bracket, and is attached to the first support shaft. An intermediate lever that is rotatably supported around a parallel second support shaft and that displaces a predetermined output member toward the vehicle front side by rotating in the output direction about the second support shaft; A vehicular pedal device having a connecting link for connecting the pedal and the intermediate lever and rotating the intermediate lever in the output direction in conjunction with a stepping operation on the operation pedal; A reverse prevention device for suppressing displacement of the stepped portion of the operation pedal toward the vehicle rear side when the shoe panel is displaced toward the vehicle rear side, wherein the second bracket can be rotated with respect to the first bracket. And a holding mechanism portion that holds the second bracket with respect to the first bracket below the rotating shaft. The second bracket has a dash panel that is a vehicle. When the second bracket is displaced to the rear side and abuts against the vehicle body side member, the second bracket is rotated around the rotation shaft to be detached from the holding mechanism portion, and the first support shaft is moved to the first support shaft. It is characterized by being displaced with respect to the bracket.

  The vehicular pedal device reverse prevention device includes a first bracket, a second bracket, an operation pedal, an intermediate lever, and a connecting link, and is interlocked with the rotation of the operation pedal accompanying a stepping operation. Thus, the intermediate lever can be rotated via the connecting link, and the output member can be displaced to the front side of the vehicle. Here, the reverse movement prevention device for the vehicle pedal device further includes a rotating shaft and a holding mechanism, the dash panel is displaced toward the vehicle rear side, and the second bracket is a vehicle body side member. , The first support shaft can be displaced with respect to the first bracket by rotating around the rotation shaft. That is, when the second bracket rotates around the rotation axis, the operation pedal is displaced with respect to the first bracket together with the first support shaft disposed on the second bracket. As described above, since the operation pedal is connected to the intermediate lever supported by the second support shaft of the first bracket by the connection link, the step portion of the operation pedal is interlocked with the rotation of the second bracket. Can be prevented from being displaced toward the rear side of the vehicle. As described above, according to the reverse preventing device for the vehicle pedal device, the first bracket is rotated with respect to the first bracket by rotating the second bracket around the rotation shaft in accordance with the front collision of the vehicle. By displacing, the operation pedal can be rotated via the connecting link connected to the intermediate lever, and thus it is possible to reliably suppress the stepped portion of the operation pedal from being displaced toward the rear side of the vehicle. And since the reverse prevention apparatus of the said vehicle pedal apparatus can suppress reliably reverse of an operation pedal with few parts, the function which suppresses reverse of an operation pedal can be implement | achieved cheaply.

  According to another aspect of the present invention, there is provided a vehicular pedal device retreat prevention device according to claim 1, wherein the vehicular pedal device retreat prevention device is the rotation of the second bracket around the rotation axis. Accordingly, the first support shaft is displaced with respect to the first bracket, and has a dividing portion that divides the connection between the operation pedal and the intermediate lever via the connection link.

  In the backward movement prevention device for the pedal device for a vehicle, when the dash panel is displaced toward the rear side of the vehicle due to a vehicle collision or the like, the dividing portion is moved along with the rotation of the second bracket around the rotation shaft. One support shaft is displaced with respect to the first bracket, and disconnects the connection between the operation pedal and the intermediate lever via the connection link. According to the backward movement prevention device for the pedal device for a vehicle, the operation pedal via the connection link is turned by the dividing portion by turning the second bracket around the turning shaft in accordance with a front collision of the vehicle. And the intermediate lever can be disconnected, so that the operation pedal can be freely swung around the first support shaft, and the displacement of the stepped portion of the operation pedal to the rear side of the vehicle is reliably suppressed. it can. And according to the reverse prevention apparatus of the said vehicle pedal apparatus, compared with the case where the displacement of the operation pedal to the vehicle rear side is maintained in a state in which the connection between the operation pedal and the intermediate lever is maintained via the connection link. Since the displacement of the operation pedal to the rear side of the vehicle can be suppressed with a small amount of rotation of the second bracket, the driver can be protected at an early stage such as a vehicle collision.

  According to another aspect of the present invention, there is provided a vehicular pedal device reverse preventing apparatus according to claim 2, wherein the intermediate lever is the second bracket of the first bracket. A lever body member that is rotatably supported around a support shaft and that displaces the output member toward the front of the vehicle by rotation in the output direction about the second support shaft, and the operation by the connecting link. The connecting member is connected to the pedal and attached to the lever body member, and the dividing portion includes an attachment pin formed on one of the lever body member and the connecting member. The second bracket around the pivot shaft is formed by an attachment holding portion that is formed on the other of the lever main body member and the coupling member and holds the attachment pin. When the first support shaft is displaced with respect to the first bracket with the rotation, the operation pin and the intermediate lever via the connection link are removed by detaching the attachment pin from the attachment holding portion. It is characterized in that the connection of is disconnected.

  In the vehicular pedal device reverse prevention device, the intermediate lever is constituted by a lever main body member and a connecting member, and the dividing portion is constituted by an attachment pin and an attachment holding portion. When the first support shaft is displaced with respect to the first bracket as the second bracket rotates around the rotation shaft, the dividing portion disengages the mounting pin from the mounting holding portion. Thus, the connection between the operation pedal and the intermediate lever via the connection link is cut off. Here, the design of the mounting pin and the mounting holding portion makes it possible to easily set the separation load at which the mounting pin is detached from the mounting holding portion to a desired magnitude. For example, it is possible to set so that the disconnection of the connection between the operation pedal and the intermediate lever via the connection link by the dividing portion occurs under a desired condition. Displacement to the vehicle rear side can be reliably suppressed.

  According to another aspect of the present invention, there is provided a vehicular pedal device retreat prevention device according to any one of claims 1 to 3, wherein the holding mechanism portion includes: A fixing pin formed on one of the first bracket and the second bracket, and a pin holding portion formed on the other of the first bracket and the second bracket and holding the fixing pin. The pin holding portion is in a direction perpendicular to the load acting on the first support shaft when the operation pedal is depressed, and is a line segment connecting the pin holding portion and the rotating shaft. It is characterized in that it has an opening that allows the fixing pin to be detached when a predetermined load is applied in a direction orthogonal thereto.

In the vehicular pedal apparatus for preventing backward movement, the holding mechanism section includes a fixed pin and a pin holding section, and the pin holding section has a predetermined amount as the second bracket rotates around the rotation axis. An opening is provided that allows the fixing pin to be detached when a load is applied. Here, according to the reverse prevention device for the vehicle pedal device, the opening of the pin holding portion is positioned in a direction orthogonal to the load acting on the first support shaft when the operation pedal is depressed. When the operation pedal is depressed, the fixed pin is not detached from the pin holding portion, and can be normally used as a vehicle pedal device. Further, in the reverse preventing device for the vehicular pedal device, the opening of the pin holding portion is located in a direction orthogonal to a line segment connecting the pin holding portion and the rotating shaft. That is, when the second bracket is rotated about the rotation axis, since the opening of the pin holding portion is located in the tangential direction in the arcuate locus drawn by the fixed pin, the second bracket is centered on the rotation axis. The load generated by the rotation of the two brackets can be efficiently applied to the detachment of the fixed pin from the pin holding portion. As a result, according to the backward movement prevention device for the pedal device for a vehicle, the second bracket can be reliably rotated around the rotation axis in the event of a vehicle collision, and the stepped portion of the operation pedal can be It is possible to reliably suppress displacement to the side.

  According to another aspect of the present invention, there is provided a vehicular pedal device retreat prevention device according to any one of claims 1 to 4, wherein the rotation shaft is The second bracket is rotated with respect to the first bracket within a range satisfying either the upper side of the first support shaft or the rear side of the vehicle of the first support shaft. It is supported in a movable manner.

  In the reverse preventing device for the vehicle pedal device, the rotation shaft is within a range satisfying either the upper side of the first support shaft or the rear side of the vehicle of the first support shaft in the second bracket. The second bracket is rotatably supported with respect to the first bracket. If the rotation shaft is arranged within this range and the second bracket is rotatably supported with respect to the first bracket, even if the moving directions of the first support shaft and the connecting link are different, the operation pedal It is possible to reliably suppress the treading portion from being displaced toward the rear side of the vehicle. In other words, according to the reverse movement prevention device for the vehicle pedal device, the movement mode of the first support shaft, the connection link, and the like can be determined according to the configuration of the vehicle to be mounted (arrangement of vehicle component members, etc.) In various vehicles, it is possible to suppress the stepped portion of the operation pedal from being displaced to the rear side of the vehicle.

  The present invention includes a first bracket, a second bracket, an operation pedal, an intermediate lever, a connecting link, a rotating shaft, and a holding mechanism, and the dash panel is displaced toward the vehicle rear side. When the second bracket comes into contact with the vehicle body side member, the second bracket is rotated around the rotation shaft, and the first support shaft is displaced with respect to the first bracket, thereby depressing the operation pedal. Displacement of the part to the rear side of the vehicle is suppressed with a small number of parts.

It is a side view showing a schematic structure of a brake pedal device concerning a 1st embodiment. It is explanatory drawing which shows the relationship between the force which acts on each part with operation of an operation pedal, and the opening in a pin holding | maintenance part. It is explanatory drawing which shows the positional relationship with a rotating shaft, a pin holding | maintenance part, and opening. It is explanatory drawing which shows the operation | movement at the time of the front collision of the brake pedal apparatus which concerns on 1st Embodiment. It is explanatory drawing which shows the arrangement | positioning tolerance range of the rotating shaft in a brake pedal apparatus. It is explanatory drawing which shows the operation | movement at the time of the front collision in the case shown in FIG. It is a side view which shows schematic structure of the brake pedal apparatus which concerns on 2nd Embodiment. It is explanatory drawing which shows the operation | movement at the time of the front collision of the brake pedal apparatus which concerns on 2nd Embodiment. It is explanatory drawing (1) which shows the modification of the parting part in this invention. It is explanatory drawing (2) which shows the modification of the parting part in this invention.

(First embodiment)
Hereinafter, an embodiment (first embodiment) in which a vehicle pedal device reverse prevention device according to the present invention is applied to a brake pedal device 1 for a service brake will be described in detail with reference to the drawings.

(Schematic configuration of brake pedal device)
First, a schematic configuration of the brake pedal device 1 according to the first embodiment will be described in detail with reference to FIGS. FIG. 1 is a side view showing a schematic configuration of the brake pedal device 1, and the first bracket 10 is indicated by a virtual line (broken line) so that the inner structure thereof can be understood.

  The brake pedal device 1 according to the first embodiment is fixed to a dash panel P that separates an engine room and a vehicle interior, and includes a first bracket 10, a second bracket 15, a rotating shaft 20, The operation pedal 30, the intermediate lever 35, the connection link 40, and the holding mechanism unit 50 are included. The brake pedal device 1 generates a braking force on the vehicle by displacing the operating rod R of the brake booster B toward the front side of the vehicle when the operation pedal 30 is rotated by a depression operation of the operation pedal 30. It is configured.

  The brake booster B is integrally fixed to the front side of the dash panel P (that is, the engine room side), and has an operating rod R as an output member. When the operating rod R is displaced to the front side of the vehicle, the brake booster B doubles the braking force transmitted through the operation pedal 30 and transmits the doubled braking force to the vehicle. The operating rod R is disposed so as to protrude from the dash panel P into the vehicle interior on the vehicle rear side, and is configured to be displaceable in the vehicle front-rear direction.

  As shown in FIG. 1, the instrument panel reinforcement I is disposed on the vehicle rear side (driver's seat side) with respect to the dash panel P and corresponds to a vehicle body side member. The instrument panel reinforcement I is generally less likely than the dash panel P to be displaced toward the rear of the vehicle when a heavy load is input from the front of the vehicle, such as during a collision. As shown in FIG. 1, a collision bracket C is fixed to the instrument panel reinforcement I.

  The first bracket 10 is fixed to the passenger compartment side of the dash panel P using bolts or the like, and has a pair of side plates that face each other at an interval in the vehicle width direction. The first bracket 10 includes a second support shaft 11 and a pin holding portion 12 and is formed in a U shape as a whole as viewed from the vehicle lower side.

  The second support shaft 11 extends substantially horizontally and substantially parallel to the vehicle width direction across the pair of side plates of the first bracket 10 at the lower part of the first bracket 10 on the front side of the vehicle. It is fixed against. The second support shaft 11 supports the lower end portion of the intermediate lever 35 and functions as the rotation center of the intermediate lever 35.

  And the pin holding | maintenance part 12 is formed in the lower rear end edge in each side plate of the 1st bracket 10, and is comprised so that the fixing pin 17 of the 2nd bracket 15 can be hold | maintained. The pin holding portion 12 has an opening 13 in which a predetermined portion on the vehicle rear side is opened, and constitutes a holding mechanism portion 50 together with the fixing pin 17.

  The second bracket 15 is disposed on the vehicle rear side with respect to the first bracket 10 and has a pair of side plates opposed to each other with an interval in the vehicle width direction. The second bracket 15 has a first support shaft 16 and a fixing pin 17 and is formed in a U shape as a whole when viewed from the vehicle lower side. The second bracket 15 is disposed so as to be rotatable about a rotation shaft 20 located at the upper rear end portion of each side plate of the first bracket 10. As will be described later, when the dash panel P is displaced backward toward the driver's seat in the event of a vehicle collision or the like, the upper portion of the second bracket 15 comes into contact with the collision bracket C of the instrument panel reinforcement I, and the rotation shaft 20 is configured to be rotatable around the center.

  The first support shaft 16 extends between the pair of side plates in the second bracket 15 and is substantially horizontal and substantially parallel to the vehicle width direction, and is fixed to the second bracket 15. As shown in FIG. 1, the first support shaft 16 is located on the vehicle rear side and the vehicle upper side with respect to the second support shaft 11 of the first bracket 10, and supports the upper portion of the operation pedal 30. . Accordingly, the first support shaft 16 functions as the rotation center of the operation pedal 30.

  The fixing pin 17 protrudes in the vehicle width direction at the lower front end edge of each side plate of the second bracket 15 and is held in the pin holding portion 12 of the first bracket 10 (see FIG. 1 and the like). . As described above, the fixing pin 17 constitutes the holding mechanism portion 50 according to the present invention in cooperation with the pin holding portion 12 of the first bracket 10.

  The rotation shaft 20 connects the second bracket 15 to the first bracket 10 so as to be rotatable. In the first embodiment, the rotation shaft 20 rotatably connects the upper rear end portion of the side plate in the first bracket 10 and the upper front end portion of the side plate in the second bracket 15. 1 to 4, the rotation shaft 20 functions as the center of rotation of the second bracket 15 with respect to the first bracket 10, and at the same time a predetermined position between the first bracket 10 and the second bracket 15. It plays the function of connecting and fixing to each other.

  The operation pedal 30 is rotatably supported by the first support shaft 16 of the second bracket 15 and has a step portion 31 at the lower end. Accordingly, when a stepping operation is performed using the step portion 31, the operation pedal 30 rotates around the first support shaft 16, and the step portion 31 moves toward the front side of the vehicle.

  The intermediate lever 35 is rotatably supported at the lower end portion thereof by the second support shaft 11 disposed on the first bracket 10 and extends upward. An operating rod R is connected to the upper end portion of the intermediate lever 35 via a clevis. Therefore, when the intermediate lever 35 rotates about the second support shaft 11, the operating rod R can be displaced in the vehicle front-rear direction. That is, according to the brake pedal device 1, a braking force can be generated via the brake booster B by pressing the operating rod R toward the vehicle front side by the intermediate lever 35.

  The connection link 40 according to the first embodiment connects the upper part of the operation pedal 30 and the lower part of the intermediate lever 35, and is attached to the operation pedal 30 and the intermediate lever 35 so as to be rotatable. Since one end side of the connection link 40 is connected to the upper front side portion of the operation pedal 30 via the connection pin 41, the connection link 40 rotates with respect to the operation pedal 30 around the connection pin 41. Can move. Further, since the other end side of the connection link 40 is connected to the lower rear side portion of the intermediate lever 35 via the connection pin 42, the connection link 40 is centered on the connection pin 42 and the intermediate lever 35. Can rotate with respect to. Therefore, in the brake pedal device 1, the rotation of the operation pedal 30 around the first support shaft 16 can be transmitted to the intermediate lever 35 via the connection link 40, and the intermediate lever 35 is 2 It can be rotated around the support shaft 11.

  As described above, the brake pedal device 1 has the holding mechanism portion 50 configured by the pin holding portion 12 of the first bracket 10 and the fixing pin 17 of the second bracket 15. The pin holding portion 12 is configured by forming a hole having substantially the same size as the outer diameter of the fixing pin 17 disposed in the second bracket 15 at the lower rear edge of the first bracket 10, and opening 13 have. The opening 13 releases the holding of the fixing pin 17 by the pin holding portion 12 when a force accompanying the rotation of the second bracket 15 acts on the fixing pin 17, so that the vehicle can move relative to the first bracket 10. The second bracket 15 is allowed to turn toward the rear side. The opening 13 is formed by cutting out a predetermined portion corresponding to the vehicle rear side with respect to the pin holding portion 12 with a width smaller than the outer diameter of the fixing pin 17.

  The holding mechanism unit 50 holds the fixing pin 17 inside the pin holding unit 12 so that the positional relationship between the first bracket 10 and the second bracket 15 is in a predetermined state (see FIG. 1). Then, when a predetermined detachment load is applied to the fixing pin 17, the holding mechanism unit 50 disengages the fixing pin 17 from the pin holding unit 12 through the opening 13, thereby It is comprised so that rotation of 2 brackets is permitted.

(Operation of each part in response to depressing operation pedal)
Next, in the brake pedal device 1 described above, the movement of each part when the operation pedal 30 is depressed is described.

  When a stepping operation is performed on the operation pedal 30, the step portion 31 is stepped on the front side of the vehicle, so that the operation pedal 30 rotates about the first support shaft 16. Accordingly, the connection pin 41 of the connection link 40 moves upward in the vehicle, so that the rotation of the operation pedal 30 is transmitted to the intermediate lever 35 via the connection link 40.

  As described above, since the connection link 40 is connected to the lower rear side portion of the intermediate lever 35 via the connection pin 42, the intermediate lever 35 is moved in accordance with the rotation of the operation pedal 30. 2 Rotating about the support shaft 11, the upper part of the intermediate lever 35 can be moved toward the vehicle front side. Since the operating rod R of the brake booster B is connected to the upper part of the intermediate lever 35 via a clevis, the brake pedal device 1 is operated in conjunction with the stepping operation of the operating pedal 30 to operate the operating rod R. Can be pressed in the output direction (front side of the vehicle), and a braking force for the vehicle can be generated.

(Relationship between the force applied when the operation pedal is depressed and the opening of the pin holder)
Next, the relationship between the force acting on each part of the brake pedal device 1 and the opening 13 of the pin holding part 12 constituting the holding mechanism part 50 when the operation pedal 30 is depressed will be described with reference to FIG. To do. In the following description, a load that acts on the step portion 31 of the operation pedal 30 as the operation pedal 30 is depressed is referred to as a pedal operation load FA.

  As shown in FIG. 2, when a pedal operation load FA acts on the step portion 31 of the operation pedal 30 and a stepping operation is performed, the operation pedal 30 rotates about the first support shaft 16. Therefore, the connection pin input load FB acts on the connection pin 41 of the connection link 40. Therefore, the load (hereinafter referred to as the first load FX) acting on the first support shaft 16 as the operation pedal 30 is depressed can be obtained by the resultant force of the pedal operation load FA and the connecting pin input load FB. The magnitude | size and direction of 1st load FX can be specified.

  Since the intermediate lever 35 is connected to the operation pedal 30 via the connection link 40, the intermediate lever 35 rotates around the second support shaft 11 in conjunction with the stepping operation of the operation pedal 30. Therefore, the connecting pin input load FC acts on the connecting pin 42 of the connecting link 40 on the intermediate lever 35. The connection pin input load FC is a reaction force of the connection pin input load FB.

  Further, the intermediate lever 35 rotates about the second support shaft 11 to displace the operating rod R of the brake booster B in the output direction. Accordingly, the reaction force of the load when the operating rod R is displaced in the output direction is input to the upper part of the intermediate lever 35. In this case, a load input to the upper part of the intermediate lever 35 by the operating rod R is referred to as an intermediate lever input load FD. Therefore, the load acting on the second support shaft 11 (hereinafter referred to as the second load FY) due to the rotation of the intermediate lever 35 accompanying the depression of the operation pedal 30 is the connection pin input load FC and the intermediate lever input load FD. It can obtain | require by resultant force and can specify the magnitude | size and direction of 2nd load FY.

  Here, as shown in FIG. 2, the opening 13 of the pin holding portion 12 is a first load FX that acts on the first support shaft 16 when the operation pedal 30 is depressed on the vehicle rear side of the pin holding portion 12. It is formed by cutting out a portion corresponding to a direction orthogonal to the width of the fixing pin 17 with a width smaller than the outer diameter.

  That is, as the operating pedal 30 is depressed, a load in the same direction as the first load FX acts on the fixed pin 17 located in the pin holding portion 12. Since the opening 13 of the pin holding portion 12 is located at a portion corresponding to the direction orthogonal to the first load FX, the fixing pin 17 is detached from the opening 13 of the pin holding portion 12 by the stepping operation of the operation pedal 30. Never move to. That is, according to the brake pedal device 1, the operation pedal 30 can be depressed without causing the second bracket 15 to rotate with respect to the first bracket 10.

(Positional relationship between the rotation axis and the opening of the pin holder)
Next, the positional relationship between the rotating shaft 20 and the opening 13 of the pin holding portion 12 in the brake pedal device 1 will be described in detail with reference to FIG. A reference line segment L shown in FIG. 3 is a line segment that connects the rotation shaft 20 that functions as the rotation center of the second bracket 15 with respect to the first bracket 10 and the pin holding portion 12 that constitutes the holding mechanism portion 50 in a straight line. It is.

  As described above, when the dash panel P is displaced backward toward the driver's seat at the time of a vehicle collision or the like, the upper portion of the second bracket 15 contacts the collision bracket C of the instrument panel reinforcement I and rotates. It rotates around the shaft 20 (see FIG. 4). At this time, the fixing pin 17 of the second bracket 15 moves so as to draw an arc with the rotation of the second bracket 15 about the rotation shaft 20.

  Here, the opening 13 of the pin holding portion 12 is a portion on the vehicle rear side of the pin holding portion 12 that corresponds to a direction perpendicular to a reference line segment L connecting the rotation shaft 20 and the pin holding portion 12, and the fixing pin 17. It is formed by cutting out with a width smaller than the outer diameter (see FIG. 3).

  That is, in the brake pedal device 1, the opening 13 of the pin holding portion 12 is positioned in the tangential direction in the arc-shaped locus drawn by the fixed pin 17 when the second bracket 15 is rotated around the rotation shaft 20. doing. Therefore, according to the brake pedal device 1, when the dash panel P is displaced to the vehicle rear side due to a frontal collision, the load generated by the rotation of the second bracket 15 around the rotation shaft 20 is applied to the pin holding portion 12. It is possible to efficiently act against the detachment of the fixing pin 17 from.

(Brake pedal operation during forward collision)
Next, the operation of the brake pedal device 1 at the time of a frontal collision of the vehicle will be described in detail with reference to FIG. When a large load is input from the front side of the vehicle due to a frontal collision of the vehicle or the like, the dash panel P is displaced to the rear side of the vehicle due to the input large load. When the dash panel P is displaced to the vehicle rear side, the entire brake pedal device 1 is displaced to the vehicle rear side, and the rear upper part of the second bracket 15 abuts against the collision bracket C of the instrument panel reinforcement I.

  When the load generated by the contact with the collision bracket C acts on the fixing pin 17 constituting the holding mechanism portion 50 and becomes larger than a predetermined detachment load, the fixing pin 17 is connected to the pin holding portion via the opening 13. 12 leaves and moves toward the rear side of the vehicle. Thereby, the 2nd bracket 15 rotates to the surroundings of the rotating shaft 20 with respect to the 1st bracket 10 (refer FIG. 4).

  When the second bracket 15 rotates about the rotation shaft 20 by contact with the collision bracket C, the first support shaft 16 is displaced as the second bracket 15 rotates. As described above, since the operation pedal 30 is rotatably supported by the first support shaft 16, the operation pedal 30 moves in a direction away from the first bracket 10 as the second bracket 15 rotates.

  Here, since the upper front portion of the operation pedal 30 is connected to the lower rear portion of the intermediate lever 35 via the connection link 40, the operation pedal 30 is moved to the first position by the rotation of the second bracket 15. When the distance from the bracket 10 to the vehicle rear side is a predetermined distance (distance between the connecting pin 41 and the connecting pin 42) or more, a force toward the front side of the vehicle acts on the operation pedal 30 via the connecting link 40. To do. When the rotation of the second bracket 15 about the rotation shaft 20 further progresses, the operation pedal 30 causes the first support shaft 16 so that the step portion 31 located at the lower end thereof moves to the vehicle front side. (See FIG. 4), the backward movement toward the driver's seat can be suppressed.

  As described above, according to the brake pedal device 1 according to the first embodiment, when a large load is input from the front of the vehicle due to a front collision or the like, the brake pedal device 1 is arranged around the rotation shaft 20 due to contact with the collision bracket C. The second bracket 15 can be rotated, and the step portion 31 of the operation pedal 30 is rotated to the vehicle front side depending on the relationship between the distance between the first bracket 10 and the first support shaft 16 and the connection link 40. Thus, the backward movement toward the driver's seat can be suppressed. In this operation, it is not necessary to displace the operating rod R of the brake booster B in the output direction. Therefore, according to the brake pedal device 1, regardless of the state of the operating rod R, the step 31 of the operation pedal 30 The amount of retreat can be suppressed.

(Regarding changing the position of the rotation axis)
In the case shown in FIGS. 1 to 4, the rotation shaft 20 rotatably connects the upper rear end portion of the side plate in the first bracket 10 and the upper front end portion of the side plate in the second bracket 15. The second bracket 15 functions as a center of rotation of the second bracket 15 relative to the first bracket 10 and at the same time functions to connect and fix predetermined positions of the first bracket 10 and the second bracket 15 to each other.

  In this respect, the rotation shaft 20 only needs to fulfill at least a function as a center of rotation of the second bracket 15 with respect to the first bracket 10, and does not necessarily have a predetermined position between the first bracket 10 and the second bracket 15. It is not necessary to perform the function of connecting and fixing each other at the same time. And the rotation axis | shaft 20 as a rotation center of the 2nd bracket 15 with respect to the 1st bracket 10 is not limited to the position shown in FIGS. 1-4, but within the predetermined rotation axis arrangement | positioning range A. As shown in FIG. If there is, it is possible to realize suppression of the reverse amount of the operation pedal 30 in the brake pedal device 1. Hereinafter, this point will be described in detail with reference to FIGS. 5 and 6.

  Here, the rotation axis arrangement range A in the brake pedal device 1 is the first state in the second bracket 15 in the normal state (that is, the state where there is no contact with the collision bracket C) as shown in FIG. A range above the support shaft 16 and a range behind the vehicle from the first support shaft 16 in the second bracket 15 are combined. By arranging the rotation shaft 20 within the rotation shaft arrangement range A and supporting the second bracket 15 so as to be rotatable with respect to the first bracket 10, the brake pedal device 1 is Due to the rotation of the second bracket 15 about the rotation shaft 20, it is possible to suppress the stepped portion 31 of the operation pedal 30 from being displaced to the vehicle rear side.

  For example, in the example shown in FIGS. 1 to 4, the rotation shaft 20 is disposed within the rotation shaft arrangement range A and above the first support shaft 16 in the second bracket 15. The second bracket 15 is rotatably supported with respect to the one bracket 10. As described above, according to the brake pedal device 1, the second bracket 15 rotates around the rotation shaft 20 disposed at this position in accordance with the contact with the collision bracket C. Thus, the retreat amount of the step portion 31 of the operation pedal 30 can be suppressed (see FIG. 4). That is, according to the example shown in FIGS. 1 to 4, when the rotation shaft 20 is disposed in the range above the first support shaft 16 in the rotation shaft arrangement range A, It turns out that the amount of retreat of the step part 31 can be suppressed.

  Next, the case where the rotation shaft 20 is disposed in the range on the vehicle rear side of the first support shaft 16 in the rotation shaft arrangement range A will be described with reference to FIGS. 5 and 6. In the example shown in FIGS. 5 and 6, the rotating shaft 20 is configured to function only as the center of rotation of the second bracket 15 relative to the first bracket 10, unlike the first embodiment. The function of connecting and fixing the predetermined positions of the first bracket 10 and the second bracket 15 to each other is performed by a fixed shaft 21 provided separately from the rotating shaft 20. And since the other structure in the brake pedal apparatus 1 is the same as that of the example shown in FIGS. 1-4, the description is abbreviate | omitted.

  In the case shown in FIGS. 5 and 6, the rotation shaft 20 can turn the side plate in the first bracket 10 and the side plate in the second bracket 15 at a position on the vehicle rear side with respect to the first support shaft 16. It is connected. In this case, the rotation shaft 20 is disposed at substantially the same position as the first support shaft 16 in the vertical direction.

  The fixed shaft 21 is located above the first support shaft 16 (for example, the position where the rotation shaft 20 is disposed in FIGS. 1 to 4), and the side plate of the first bracket 10 and the side plate of the second bracket 15. Are connected and fixed. The fixed shaft 21 is configured to allow rotation of the second bracket 15 relative to the first bracket 10 by causing breakage or the like when the collision bracket C abuts against the second bracket 15. Yes.

  The operation of the brake pedal device 1 at the time of a frontal collision of the vehicle in the example shown in FIGS. 5 and 6 will be described in detail. As described above, when a large load is input from the front side of the vehicle due to a frontal collision of the vehicle or the like, the dash panel P is displaced to the rear side of the vehicle due to the input large load. When the dash panel P is displaced to the vehicle rear side, the entire brake pedal device 1 is displaced to the vehicle rear side, and the rear upper part of the second bracket 15 abuts against the collision bracket C of the instrument panel reinforcement I.

  Even in this case, when the load generated by the contact with the collision bracket C acts on the fixing pin 17 constituting the holding mechanism portion 50 and becomes larger than a predetermined detachment load, the fixing pin 17 passes through the opening 13. Then, it is disengaged from the pin holding part 12 and moves toward the vehicle rear side (see FIG. 6). At the same time, since the fixed shaft 21 is broken, the second bracket 15 rotates around the rotation shaft 20 with respect to the first bracket 10.

  When the second bracket 15 rotates about the rotation shaft 20 by contact with the collision bracket C, the first support shaft 16 moves toward the vehicle lower side as the second bracket 15 rotates. Displace. Since the operation pedal 30 is rotatably supported by the first support shaft 16, the operation pedal 30 moves in a direction away from the first bracket 10 as the second bracket 15 rotates.

  Since the upper front portion of the operation pedal 30 is connected to the lower rear portion of the intermediate lever 35 via the connection link 40, the operation pedal 30 is moved to the first position by the rotation of the second bracket 15. When the bracket 10 is separated from the bracket 10 to the vehicle lower side by a predetermined distance (distance between the connecting pin 41 and the connecting pin 42) or more, the operation pedal 30 is subjected to a force that pulls upward through the connecting link 40. When the rotation of the second bracket 15 about the rotation shaft 20 further progresses, the operation pedal 30 causes the first support shaft 16 so that the step portion 31 located at the lower end thereof moves to the vehicle front side. (See FIG. 6), the backward movement toward the driver's seat can be suppressed.

  As described above, when the rotation shaft 20 is arranged in the range of the rotation shaft arrangement range A on the vehicle rear side of the first support shaft 16 as in the brake pedal device 1 shown in FIGS. 5 and 6. Even if it exists, the 2nd bracket 15 can be rotated around the rotating shaft 20 by contact | abutting with the bracket C for collision, the distance of the 1st bracket 10 and the 1st support shaft 16, and the connection link 40 Therefore, the step 31 of the operation pedal 30 can be turned to the front side of the vehicle to suppress the backward movement toward the driver's seat.

  As described above, the brake pedal device 1 according to the first embodiment includes the first bracket 10, the operation pedal 30, the intermediate lever 35, and the connection link 40, and an operation associated with the stepping operation. The intermediate lever 35 can be rotated via the connecting link 40 in conjunction with the rotation of the pedal 30, and thus the operating rod R can be displaced to the front side of the vehicle to generate a braking force on the vehicle.

  The brake pedal device 1 further includes a rotating shaft 20 and a holding mechanism 50, and the dash panel P is displaced to the rear side of the vehicle, and the second bracket 15 is a collision bracket C. , It is possible to disengage from the holding mechanism portion 50 and separate the operation pedal 30 from the first bracket 10 by rotating around the rotation shaft 20. That is, as shown in FIGS. 4 and 6, when the second bracket 15 rotates around the rotation shaft 20, the operation pedal 30 is moved together with the first support shaft 16 disposed on the second bracket 15. Separated from the first bracket 10. As described above, since the operation pedal 30 is connected to the intermediate lever 35 supported by the second support shaft 11 of the first bracket 10 by the connection link 40, the operation pedal 30 is interlocked with the rotation of the second bracket 15. The displacement of the step portion 31 of the operation pedal 30 toward the rear side of the vehicle can be suppressed.

  As described above, according to the brake pedal device 1, the second bracket 15 is rotated around the rotation shaft 20 and the operation pedal 30 is separated from the first bracket 10 in accordance with a forward collision of the vehicle. The operation pedal 30 can be rotated via the connection link 40 connected to the intermediate lever 35, and the displacement of the step portion 31 of the operation pedal 30 to the vehicle rear side can be reliably suppressed. And since the said brake pedal apparatus 1 can suppress reliably reverse | retreat of the operation pedal 30 with a small number of parts, the function which suppresses reverse of the operation pedal 30 can be implement | achieved cheaply. Further, according to the brake pedal device 1, since the operating rod R does not need to be displaced to the vehicle front side (brake booster B side), the operation pedal 30 is prevented from moving backward regardless of the state of the operating rod R. be able to.

  As shown in FIG. 2, the opening 13 of the pin holding portion 12 constituting the holding mechanism portion 50 is orthogonal to the first load FX acting on the first support shaft 16 when the operation pedal 30 is depressed. Located in the direction. Therefore, according to the brake pedal device 1, when the operation pedal 30 is depressed, the fixed pin 17 is not detached via the opening 13 of the pin holding portion 12, and can be normally used as the brake pedal device 1. Can do.

  Furthermore, the opening 13 of the pin holding part 12 is located in a direction orthogonal to a reference line segment L connecting the pin holding part 12 and the rotating shaft 20 (see FIG. 3). That is, when the second bracket 15 is rotated around the rotation shaft 20, the opening 13 of the pin holding portion 12 is positioned in the tangential direction in the arcuate locus drawn by the fixing pin 17. The load generated by the rotation of the second bracket 15 around 20 can be efficiently applied to the detachment of the fixing pin 17 from the pin holding portion 12. As a result, according to the brake pedal device 1, the second bracket 15 can be reliably rotated around the rotation shaft 20 in the event of a vehicle collision. It is possible to reliably suppress displacement to the side.

  Further, as shown in FIG. 5, the rotation shaft 20 is a rotation that satisfies either the upper side of the second bracket 15 above the first support shaft 16 or the vehicle rear side of the first support shaft 16. Within the moving shaft arrangement range A, the second bracket 15 is rotatably supported with respect to the first bracket 10. If the rotation shaft 20 is disposed within the rotation shaft arrangement range A and the second bracket 15 is rotatably supported with respect to the first bracket 10, the first support shaft 16 and the connecting link 40 can be connected. Even if the moving directions are different, it is possible to reliably suppress the stepped portion 31 of the operation pedal 30 from being displaced toward the vehicle rear side (see FIGS. 4 and 6). That is, according to the brake pedal device 1, the movement mode of the first support shaft 16, the connection link 40, and the like can be determined according to the configuration of the vehicle to be mounted (arrangement of vehicle components, etc.). In a vehicle, it can suppress that the step part 31 of the operation pedal 30 displaces to the vehicle rear side.

(Second Embodiment)
Next, a schematic configuration of the brake pedal device 1 according to an embodiment (second embodiment) different from the first embodiment described above will be described in detail with reference to FIGS. 7 and 8. The brake pedal device 1 according to the second embodiment has the same basic configuration as the brake pedal device 1 according to the first embodiment described above, except for the configuration of the intermediate lever 35, the dividing portion 55, and the like. . Therefore, in the following description, the description of the same configuration as that of the first embodiment is omitted, and a different configuration will be described in detail.

(Schematic configuration of the brake pedal device according to the second embodiment)
As in the first embodiment, the brake pedal device 1 according to the second embodiment includes the first bracket 10, the second bracket 15, the rotating shaft 20, the operation pedal 30, the connection link 40, and the holding mechanism. Part 50. The brake pedal device 1 according to the second embodiment displaces the operating rod R of the brake booster B toward the front side of the vehicle when the operation pedal 30 is rotated by the depression operation of the operation pedal 30. It is comprised so that the braking force with respect to may be generated.

  As shown in FIG. 7, in the brake pedal device 1 according to the second embodiment, the intermediate lever 35 is configured by connecting a lever main body member 36 and a connecting member 38 so as to be divided by a dividing portion 55. In the same manner as in the first embodiment, the operating rod R is displaced in the vehicle front-rear direction by rotating as the operation pedal 30 is depressed.

  The lever main body member 36 constitutes a main part of the intermediate lever 35, and the lower end portion thereof is rotatably supported by the second support shaft 11 disposed in the first bracket 10. The lever body member 36 is disposed so as to extend upward from a lower end portion supported by the second support shaft 11, and an operating rod R is coupled to the upper end portion via a clevis. . Accordingly, the operating rod R can be displaced in the vehicle front-rear direction by the lever main body member 36 constituting the intermediate lever 35 rotating about the second support shaft 11.

  The lever main body member 36 is formed with an attachment holding portion 37 that constitutes a part of the dividing portion 55. The attachment holding portion 37 is formed on the lower rear end side of the lever main body member 36 and above the second support shaft 11, and cooperates with an attachment pin 39 of a connecting member 38 described later. It functions as the dividing part 55 in the second embodiment.

  The connecting member 38 constitutes a part of the lower rear end side of the intermediate lever 35 and is connected by an attachment holding portion 37 of the lever main body member 36. Since the other end side of the connection link 40 is connected to the vehicle rear side of the connection member 38 via the connection pin 42, the connection link 40 is connected to the connection member 38 of the intermediate lever 35 around the connection pin 42. Can rotate with respect to.

  An attachment pin 39 constituting the dividing portion 55 is formed on the vehicle front side of the connecting member 38, and the attachment pin 39 cooperates with the attachment holding portion 37 of the lever main body member 36, so that the lever A connecting member 38 is integrally connected to the main body member 36. When the connecting member 38 is integrally connected to the lever body member 36, the rotation of the operation pedal 30 around the first support shaft 16 is connected to the lever body member 36 and the connection via the connection link 40. Since the signal is transmitted to the intermediate lever 35 composed of the member 38, the intermediate lever 35 can rotate around the second support shaft 11 in conjunction with the stepping operation of the operation pedal 30. That is, according to the brake pedal device 1, a braking force can be generated via the brake booster B by pressing the operating rod R toward the vehicle front side by the intermediate lever 35.

  As shown in FIG. 8, the brake pedal device 1 according to the second embodiment is formed with a dividing portion 55, and the second bracket 15 rotates around the rotation shaft 20 as the collision bracket C abuts. When moved, the connection between the operation pedal 30 and the intermediate lever 35 via the connection link 40 is cut off. The dividing portion 55 integrally connects the connecting member 38 to the lever main body member 36 by holding the mounting pin 39 of the connecting member 38 by the mounting holding portion 37 of the lever main body member 36.

  The attachment holding portion 37 forms a hole of substantially the same size as the outer diameter of the attachment pin 39 formed in the connecting member 38 at the lower rear end edge of the lever main body member 36, and corresponds to the vehicle rear side with respect to the hole. The predetermined portion is formed by cutting out with a width smaller than the outer diameter of the mounting pin 39. Therefore, when a load that pulls the connecting member 38 to the vehicle rear side via the connecting link 40 is applied, the attachment pin 39 is detached from the inside of the attachment holding portion 37 of the lever main body member 36. As a result, the lever main body member 36 and the member group including the operation pedal 30 and the connecting member 38 connected via the connecting link 40 are divided. That is, according to the brake pedal device 1 according to the second embodiment, the connection between the operation pedal 30 and the intermediate lever 35 via the connection link 40 can be disconnected by the dividing portion 55.

(Operation of the brake pedal device according to the second embodiment at the time of forward collision)
Next, the operation of the brake pedal device 1 according to the second embodiment at the time of a vehicle front collision will be described in detail with reference to FIG. When a large load is input from the front side of the vehicle due to a frontal collision of the vehicle or the like, the dash panel P is displaced to the rear side of the vehicle due to the input large load, as in the first embodiment. Comes into contact with the collision bracket C of the instrument panel reinforcement I.

  Also in the brake pedal device 1 according to the second embodiment, when the load generated by the contact with the collision bracket C acts on the fixing pin 17 constituting the holding mechanism 50 and becomes larger than a predetermined detachment load, The fixing pin 17 is detached from the pin holding portion 12 through the opening 13 and moves toward the vehicle rear side. At the same time, in the second embodiment, breakage of the fixed shaft 21 that connects and fixes the side plates of the first bracket 10 and the side plates of the second bracket 15 occurs. Thereby, the 2nd bracket 15 rotates to the surroundings of the rotating shaft 20 with respect to the 1st bracket 10 (refer FIG. 8).

  As shown in FIG. 8, when the second bracket 15 is rotated about the rotation shaft 20 by contact with the collision bracket C, the first support shaft 16 is moved along with the rotation of the second bracket 15. The vehicle is displaced toward the upper rear side of the vehicle. That is, also in the second embodiment, the operation pedal 30 moves together with the first support shaft 16 in a direction away from the first bracket 10 as the second bracket 15 rotates.

  As shown in FIG. 8, the upper front portion of the operation pedal 30 is connected to the connecting member 38 constituting the lower rear portion of the intermediate lever 35 via the connecting link 40, so that the second bracket 15, when the operation pedal 30 is separated from the first bracket 10 toward the vehicle rear side by a predetermined distance (distance between the connection pin 41 and the connection pin 42) or more, the connection link 40 is connected to the connection member 38. Via this, a pulling force acts on the vehicle rear side. When the rotation of the second bracket 15 about the rotation shaft 20 further proceeds, the mounting pin 39 of the connecting member 38 is detached from the mounting holding portion 37 of the lever main body member 36 and is connected via the connecting link 40. The connection between the operation pedal 30 and the intermediate lever 35 is cut off. Thereby, according to the brake pedal apparatus 1 which concerns on 2nd Embodiment, since the operation pedal 30 will be in the state which can rock | fluctuate freely around the 1st support shaft 16 of the 2nd bracket 15, it is located in the lower end part. It is possible to suppress the backward movement of the step 31 to the driver's seat side (see FIG. 8).

  Thus, according to the brake pedal device 1 according to the second embodiment, when a large load is input from the front of the vehicle due to a frontal collision or the like, the brake pedal device 1 around the rotation shaft 20 due to contact with the collision bracket C is provided. The second bracket 15 can be rotated, and the connection between the operation pedal 30 and the intermediate lever 35 via the connection link 40 can be disconnected by the dividing portion 55. And according to the brake pedal apparatus 1 which concerns on 2nd Embodiment, the connection between the operation pedal 30 and the intermediate lever 35 via the connection link 40 is cut | disconnected by the dividing part 55, The 1st support shaft 16 is made. As a center, the operation pedal 30 can be swung, so that the backward movement of the step portion 31 of the operation pedal 30 toward the driver's seat can be suppressed. In this operation, it is not necessary to displace the operating rod R of the brake booster B in the output direction. Therefore, according to the brake pedal device 1, regardless of the state of the operating rod R, the step 31 of the operation pedal 30 The amount of retreat can be suppressed.

  Note that also in the brake pedal device 1 according to the second embodiment, the rotating shaft 20 is in the normal state (that is, in the state of no contact with the collision bracket C), and the first support shaft 16 in the second bracket 15. The second bracket 15 with respect to the first bracket 10 in the rotation axis arrangement range A configured by combining the range above the upper side and the range on the rear side of the vehicle with respect to the first support shaft 16 in the second bracket 15. Is rotatably supported. That is, also in the second embodiment, if the rotation shaft 20 is disposed in any one of the rotation shaft arrangement ranges A, the second bracket 15 is rotated around the rotation shaft 20 to be divided. By the portion 55, the connection between the operation pedal 30 and the intermediate lever 35 via the connection link 40 can be cut off, so that the retreating amount of the operation pedal 30 can be suppressed.

  As described above, the brake pedal device 1 according to the second embodiment includes the first bracket 10, the operation pedal 30, the intermediate lever 35, and the connection link 40, as in the first embodiment. The intermediate lever 35 can be rotated via the connecting link 40 in conjunction with the rotation of the operation pedal 30 associated with the stepping operation, so that the operating rod R is displaced toward the front of the vehicle to A braking force can be generated.

  The brake pedal device 1 further includes a rotating shaft 20, a holding mechanism portion 50, and a dividing portion 55, and the dash panel P is displaced toward the vehicle rear side, and the second bracket. When 15 is in contact with the collision bracket C, it can be detached from the holding mechanism portion 50 by rotating around the rotation shaft 20 and the operation pedal 30 can be separated from the first bracket 10. it can. That is, as shown in FIG. 8, the second bracket 15 rotates around the rotation shaft 20, so that the operation pedal 30 and the first support shaft 16 disposed on the second bracket 15 together with the first bracket 15. 10 apart. Since the operation pedal 30 is coupled to the coupling member 38 of the intermediate lever 35 supported by the second support shaft 11 of the first bracket 10 by the coupling link 40, according to the brake pedal device 1, the second bracket In conjunction with the 15 rotation, the dividing portion 55 can disconnect the connection between the operation pedal 30 and the intermediate lever 35 via the connecting link 40. As a result, in the brake pedal device 1 according to the second embodiment, the operation pedal 30 can be swung around the first support shaft 16, so that the step portion 31 of the operation pedal 30 can be used as a vehicle. Displacement to the rear side can be suppressed.

  And according to the brake pedal apparatus 1 which concerns on 2nd Embodiment, the displacement to the vehicle rear side of the operation pedal 30 is suppressed in the state which maintained the connection of the said operation pedal 30 and the said intermediate lever 35 via the said connection link 40. Since the displacement of the operation pedal 30 to the rear side of the vehicle can be suppressed with a small amount of rotation of the second bracket 15 compared to the case (that is, the first embodiment), the driver is protected at an early stage such as a vehicle collision. Can be achieved. Also in the second embodiment, since the operation pedal 30 can be reliably prevented from retreating with a small number of parts, a function for suppressing the operation pedal 30 from retreating can be realized at low cost. Furthermore, according to the brake pedal device 1, since the operating rod R does not need to be displaced to the vehicle front side (brake booster B side), the operation pedal 30 is prevented from moving backward regardless of the state of the operating rod R. be able to.

  In the brake pedal device 1 according to the second embodiment, the intermediate lever 35 includes a lever main body member 36 and a connecting member 38, and the dividing portion 55 includes an attachment holding portion 37 of the lever main body member 36, and It is comprised by the attachment pin 39 of the connection member 38. FIG. When the operation pedal 30 moves away from the first bracket 10 with the rotation of the second bracket 15 around the rotation shaft 20, the dividing portion 55 is moved from the attachment holding portion 37 to the attachment pin. By separating 39, the connection between the operation pedal 30 and the intermediate lever 35 via the connection link 40 is cut off.

  According to the brake pedal device 1 according to the second embodiment, the separation load at which the mounting pin 39 is detached from the mounting holding portion 37 is easily set to a desired magnitude by the design of the mounting holding portion 37 and the mounting pin 39. Therefore, according to the brake pedal device 1, it is set so that the disconnection of the connection between the operation pedal 30 and the intermediate lever 35 via the connection link 40 by the dividing portion 55 occurs under a desired condition. Therefore, it is possible to reliably suppress displacement of the step portion 31 of the operation pedal 30 to the vehicle rear side under a desired condition.

  Also in the second embodiment, the opening 13 of the pin holding portion 12 constituting the holding mechanism portion 50 acts on the first support shaft 16 when the operation pedal 30 is depressed, as in the first embodiment. It is located in the direction orthogonal to the load to be performed. Therefore, according to the brake pedal device 1, when the operation pedal 30 is depressed, the fixed pin 17 is not detached via the opening 13 of the pin holding portion 12, and can be normally used as the brake pedal device 1. Can do.

  Further, the opening 13 of the pin holding portion 12 according to the second embodiment is located in a direction orthogonal to a line segment connecting the pin holding portion 12 and the rotation shaft 20 as in the first embodiment. That is, since the opening 13 of the pin holding portion 12 is located in the tangential direction in the arcuate locus drawn by the fixing pin 17 when the second bracket 15 is rotated around the rotation shaft 20, the second embodiment is performed. Also in the embodiment, the load generated by the rotation of the second bracket 15 around the rotation shaft 20 can be efficiently applied to the detachment of the fixing pin 17 from the pin holding portion 12. As a result, according to the brake pedal device 1, the second bracket 15 can be reliably rotated around the rotation shaft 20 in the event of a vehicle collision. It is possible to reliably suppress displacement to the side.

  Also in the brake pedal device 1 according to the second embodiment, the rotation shaft 20 is located above the first support shaft 16 in the second bracket 15 or on the vehicle rear side from the first support shaft 16. The second bracket 15 is rotatably supported with respect to the first bracket 10 within the rotation axis arrangement range A that satisfies any of the above. If the rotation shaft 20 is disposed within the rotation shaft arrangement range A and the second bracket 15 is rotatably supported with respect to the first bracket 10, the first support shaft 16 and the connecting link 40 can be connected. Even if the moving directions are different, it is possible to reliably suppress the stepped portion 31 of the operation pedal 30 from being displaced toward the vehicle rear side. That is, according to the brake pedal device 1, the movement mode of the first support shaft 16, the connection link 40, and the like can be determined according to the configuration of the vehicle to be mounted (arrangement of vehicle components, etc.). In a vehicle, it can suppress that the step part 31 of the operation pedal 30 displaces to the vehicle rear side.

  Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. For example, the holding mechanism portion 50 in the above-described embodiment is configured by the pin holding portion 12 formed on the first bracket 10 and the fixing pin 17 formed on the second bracket 15, but is limited to this mode. It is not something. The holding mechanism portion in the present invention can be configured by forming a fixing pin on the first bracket 10 and forming a pin holding portion on the second bracket 15. Further, the holding mechanism portion according to the present invention may be configured to allow the second bracket 15 to rotate by breaking the fixing pin as the second bracket 15 rotates.

  Further, the arrangement of the operation pedal 30 and the intermediate lever 35 is not limited to the arrangement shown in the above-described embodiment, and if each operation in the reverse prevention device of the vehicle pedal device according to the present invention can be realized, Arrangement of each member which constitutes brake pedal device 1 can be changed suitably.

  Moreover, if each operation | movement in the reverse prevention apparatus of the pedal apparatus for vehicles which concerns on this invention is realizable, the shape of a structural member can be changed suitably. The shape of each constituent member is not limited to the shape of each constituent member of the brake pedal device 1 in the above-described embodiment. For example, in each operation of the reverse preventing device of the vehicle pedal device according to the present invention, In order to avoid interference between the constituent members, the shape of each constituent member may be changed.

  In 2nd Embodiment, although the parting part 55 in this invention was comprised by the attachment holding | maintenance part 37 of the lever main body member 36, and the attachment pin 39 of the connection member 38, it is not limited to this aspect. . The dividing part in the present invention can adopt various modes as long as the connection between the operation pedal and the intermediate lever via the connecting link can be divided. For example, the dividing portion in the present invention can be configured by forming an attachment pin on the lever body member and forming an attachment holding portion on the connecting member. By damaging the mounting pin formed on either the lever main body member or the connecting member, the connection between the lever main body member and the connecting member may be broken, or either one of the lever main body member and the connecting member, The connection between the lever main body member and the connecting member may be broken by being damaged by a load acting on the mounting pin.

  As shown in FIG. 9, the weakened portions 56 may be formed on the operation pedal 30 and the intermediate lever 35, and the weakened portions 56 may function as the dividing portions 55. The fragile portion 56 only needs to be lower in rigidity than the main body portions of the operation pedal 30 and the intermediate lever 35. For example, a plurality of holes penetrating the main body portions of the operation pedal 30 and the intermediate lever 35 are linearly formed. It may be configured to be arranged.

  The fragile portion 56 in the operation pedal 30 is formed so as to divide the main body portion of the operation pedal 30 that is rotatably supported by the first support shaft 16 and the portion that is connected to the connection link 40 by the connection pin 41. Has been. On the other hand, the weakened portion 56 in the intermediate lever 35 separates the main body portion of the intermediate lever 35 that is rotatably supported by the second support shaft 11 and the portion that is connected to the connection link 40 by the connection pin 42. Is formed. Therefore, according to the example shown in FIG. 9, either the fragile portion 56 of the operation pedal 30 or the fragile portion 56 of the intermediate lever 35 is broken by the rotation of the second bracket 15 accompanying the contact with the collision bracket C. Therefore, the connection between the operation pedal 30 and the intermediate lever 35 via the connection link 40 can be cut off.

  In this regard, in the example shown in FIG. 9, the fragile portions 56 are formed on both the operation pedal 30 and the intermediate lever 35 to function as the dividing portions 55. However, the present invention is not limited to this mode. Absent. For example, the weak portion 56 as the dividing portion 55 may be formed only on the operation pedal 30, or the weak portion 56 as the dividing portion 55 may be formed only on the intermediate lever 35.

  Further, as shown in FIG. 10, the dividing portion according to the present invention may be realized by forming a fragile portion 56 in the connecting link 40. In this case, the fragile portion 56 that functions as a dividing portion is formed so as to divide the connecting link 40 between the connecting pin 41 and the connecting pin 42 in the connecting link 40.

  Therefore, in the example shown in FIG. 10, since the weakened portion 56 of the connecting link 40 is broken by the rotation of the second bracket 15 accompanying the contact with the collision bracket C, the connecting link 40 is connected by the connecting pin 41. It is divided into a portion connected to the operation pedal 30 and a portion connected to the operation pedal 30 by the connection pin 42. Accordingly, in the case illustrated in FIG. 10, the connection between the operation pedal 30 and the intermediate lever 35 via the connection link 40 can be disconnected because the connection portion 40 is disconnected by the fragile portion 56.

DESCRIPTION OF SYMBOLS 1 Brake pedal apparatus 10 1st bracket 11 2nd support shaft 12 Pin holding part 13 Opening 15 2nd bracket 16 1st support shaft 17 Fixed pin 20 Rotating shaft 30 Operation pedal 31 Step part 35 Intermediate lever 36 Lever main body member 37 Installation Holding part 38 Connecting member 39 Mounting pin 40 Connecting link 50 Holding mechanism part 55 Dividing part P Dash panel I Instrument panel reinforcement C Collision bracket FX First load L Reference line segment A Rotation axis arrangement range

Claims (5)

A first bracket fixed to a dash panel on the front side of the vehicle;
A second bracket disposed on the vehicle rear side with respect to the first bracket;
An operation pedal which is rotatably arranged by the first support shaft of the second bracket and has a step portion used for a stepping operation toward the front side of the vehicle;
It is disposed on the first bracket, is rotatably supported around a second support shaft parallel to the first support shaft, and is rotated in the output direction about the second support shaft. An intermediate lever for displacing the output member of the
The vehicle pedal device includes: a connecting link that connects the operation pedal and the intermediate lever and rotates the intermediate lever in the output direction in conjunction with a stepping operation on the operation pedal. An anti-reverse device that suppresses displacement of the stepped portion of the operation pedal toward the vehicle rear side when displaced to the rear side,
A pivot shaft that rotatably supports the second bracket with respect to the first bracket;
A holding mechanism portion that holds the second bracket with respect to the first bracket below the rotating shaft;
The second bracket is
When the dash panel is displaced to the rear side of the vehicle and the second bracket comes into contact with the vehicle body side member, the dash panel is separated from the holding mechanism portion by rotating around the rotation shaft, and the first support An apparatus for preventing a backward movement of a pedal device for a vehicle, wherein a shaft is displaced with respect to the first bracket. As the second bracket rotates around the rotation shaft, the first support shaft is displaced with respect to the first bracket, thereby connecting the operation pedal and the intermediate lever via the connection link. 2. The reverse preventing device for a vehicle pedal device according to claim 1, further comprising a dividing portion for dividing. The intermediate lever is
A lever body member that is rotatably supported around the second support shaft of the first bracket and that displaces the output member toward the front of the vehicle by rotation in the output direction about the second support shaft. When,
The connection link is connected to the operation pedal and is configured to be connected to the lever body member.
The dividing portion is
A mounting pin formed on one of the lever body member and the connecting member;
The lever body member and the connecting member are formed on the other side, and are configured by an attachment holding portion that holds the attachment pin.
When the first support shaft is displaced relative to the first bracket along with the rotation of the second bracket around the rotation shaft, the connection pin is removed from the attachment holding portion to thereby connect the connection 3. The reverse preventing device for a vehicular pedal device according to claim 2, wherein the connection between the operation pedal and the intermediate lever is disconnected via a link. The holding mechanism section is
A fixing pin formed on one of the first bracket and the second bracket;
A pin holding portion that is formed on the other of the first bracket and the second bracket and holds the fixing pin;
The pin holding part is
A predetermined load in a direction perpendicular to the load acting on the first support shaft during the operation of the operation pedal and perpendicular to a line segment connecting the pin holding portion and the rotation shaft. 4. The vehicular pedal device retreat prevention device according to claim 1, further comprising an opening that allows the fixing pin to be detached when the operation is applied. 5. The pivot axis is
In the second bracket, the second bracket is rotated with respect to the first bracket within a range satisfying either the upper side of the first support shaft or the rear side of the vehicle of the first support shaft. The vehicular pedal device reverse prevention device according to any one of claims 1 to 4, wherein the vehicular pedal device is supported in a possible manner.

Images