JP2017199199A - Vehicle pedal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle pedal device capable of preventing backing out of a pedal in a vehicle collision and securing a tensile strength with a simple structure.SOLUTION: A vehicle pedal device includes: a pedal bracket fixed to the inside of a vehicle cabin; a pedal arm supported by a pedal bracket at one end side and having a pedal pad for receiving a tread force at the other end side; a rod whose one end side is connected to the outside of the vehicle cabin and the other end side is arranged inside the vehicle cabin; a rod side connection member fixed to the other end side of the rod; an arm side connection member fixed to the pedal arm; connection means for connecting the rod side connection member and the arm side connection member and prohibiting a release of the connection in a pedal arm moving direction and permitting the release of the connection in a direction crossing the pedal arm moving direction; and release means for releasing the connection by urging the connection means toward the direction crossing the pedal arm moving direction when the connection means moves toward the backward of the vehicle further than an initial position.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicular pedal device, and more particularly to a vehicular pedal device that suppresses a backward movement of a pedal into a vehicle interior when a vehicle collides.

  This type of vehicle pedal device is described in Patent Documents 1 and 2 below, for example.

JP-A-10-59146 JP2014-186369

  A general hydraulic brake device has a configuration in which a stepping force on a brake pedal by a driver is boosted by a booster to pressurize a master cylinder. The brake pedal is supported by a dashboard that rises from a floor panel in the passenger compartment at the lower part of the driver seat in front of the vehicle, and is disposed on the pedal arm. The booster and the master cylinder are arranged in an engine room outside the passenger compartment on the opposite side of the pedal arm and the brake pedal with the dashboard interposed therebetween. When the vehicle collides forward, the dashboard may move backward together with the engine room, or the pedal arm and brake pedal may move backward due to reaction force from the booster or master cylinder, and may move toward the driver. . At this time, a large impact force may be applied to the driver's foot.

  In view of this, the brake device described in Patent Document 1 has a booster and a master when the pedal arm and the brake pedal are retracted toward the vehicle interior in order to alleviate the impact force applied to the driver by the brake pedal when the vehicle collides. The rod that connects the cylinder and the pedal arm is deformed to prevent the brake pedal from moving backward. Specifically, the pedal arm includes a pedal arm that is rotatably fixed in the vehicle interior, an auxiliary bracket that is fixed to the pedal arm, and a rod that allows deformation due to an external force exceeding a predetermined level. When the pedal retreats toward the vehicle interior, the auxiliary bracket presses the pedal rod in a direction crossing the pedal rod moving direction to deform the rod, thereby suppressing the retraction of the pedal arm and the brake pedal.

  Since the rod needs to transmit the pedaling force of the brake pedal during normal braking operation, the rod needs to have sufficient strength against the axial compressive load by increasing the diameter of the rod. Therefore, when a structure for bending the rod as in the configuration is provided, a bending structure capable of generating a force sufficient to bend the high-strength rod is required, resulting in an increase in weight and size of the receding prevention structure. .

  The brake device described in Patent Document 2 includes a rod, a lock nut provided at the tip of the rod, and a separate clevis, and supports the rod by bringing the lock nut and the clevis into contact with each other. . During normal use, part of the lock nut and clevis is hooked. When the lock nut is deformed (when the pedal arm and brake pedal are retracted toward the vehicle interior), the hooked part is disconnected. doing.

  According to this configuration, for example, a stopper for securing the tensile strength is required in addition to the above configuration in order to ensure the tensile strength of the pedal and the rod that are required when the vehicle antitheft device is mounted on the pedal. As a result, the pedal structure is complicated.

  An object of the present invention is to provide a vehicular pedal device capable of preventing a pedal from retreating when a vehicle collides with a simple configuration and ensuring a tensile strength.

  A vehicle pedal device according to the present invention is provided in a vehicle interior, and includes a pedal bracket that is fixed in the vehicle interior, a pedal pad that is supported at one end by the pedal bracket, and that receives a pedaling force by a driver at the other end. A pedal arm that moves in the front-rear direction of the vehicle, a rod that has one end connected to the outside of the vehicle compartment, and the other end arranged in the vehicle interior, moves in the vehicle front-rear direction, and a rod-side connection fixed to the other end of the rod. A member, an arm side connecting member fixed between one end side and the other end side of the pedal arm, and a rod side connecting member and an arm side connecting member disposed between the rod side connecting member and the arm side connecting member. Connecting the member and prohibiting the release of the connection between the rod side connecting member and the arm side connecting member in the pedal arm moving direction, and the rod side connecting member and the arm side in the direction intersecting the pedal arm moving direction Connecting means for allowing release of the connection with the connecting member, and when the connecting means moves rearward of the vehicle from the initial position before receiving the pedaling force via the pedal arm, the connecting means is connected with the movement. Release means for releasing the connection by urging the means in a direction crossing the direction of movement of the pedal arm is provided.

It is a figure which shows embodiment of this invention. It is an enlarged view which shows the connection part of this invention. It is AA sectional drawing which shows the connection part of this invention. It is a figure which shows operation | movement description of the cancellation | release means of this invention.

  Hereinafter, the present invention will be described in detail by way of embodiments, but the present invention is not limited by the following embodiments unless it exceeds the gist of the present invention.

  As shown in FIG. 1, the vehicle pedal device according to the present embodiment includes a pedal bracket 3 fixed to a wall surface 6 of the vehicle, and a pedal arm whose one end is rotatably assembled to the pedal bracket 3 via a shaft 22. 2 and a restricting member 4 for restricting the backward movement of the pedal arm 2 on the vehicle interior side (the wall surface 6 and the inside, the vehicle front side), and the pedal arm 2 receives the pedaling force of the driver on the other end side. A pedal 23 (pedal pad) is provided. The direction in which the master cylinder 8 is disposed is the front of the vehicle, the direction in which the pedal 23 is disposed is the rear of the vehicle, and the state in which the pedal 23 is not receiving the pedaling force by the driver is the initial state.

  Further, outside the passenger compartment (on the side opposite to the pedal of the wall surface 6 and on the front side of the vehicle) is a booster 7 that functions as a stepping force increasing means for increasing the pedaling force of the driver, and for converting the pressure increased by the booster 7 into hydraulic pressure. A fluid pressure conversion master cylinder 8 and a reservoir tank 9 for accumulating and replenishing brake fluid following a change in volume of the fluid pressure system are integrally provided.

  During normal braking, when the driver steps on the pedal 23, the pedal arm 2 rotates in the vehicle forward direction (master cylinder 8 side) with the shaft 22 as the center of rotation. The rod 5 is pushed out in the vehicle front direction through the connecting member 1 disposed therebetween. The pushing force of the extruded rod 5 is increased and converted into a hydraulic pressure by the booster 7 and the master cylinder 8.

  The rod 5 is connected to the pedal arm 2 by the connecting member 1 so as to be axially movable. The connecting member 1 is preferably screwed to the rod 5 and fixed to the rod side as shown in FIGS. It has the connection member 11 and the arm side connection member 12 fixed to the pedal arm 2 by inserting the pin 13 in the pin insertion hole 14.

  Further, the rod side connecting member 11 has a rod side fitting portion 15 formed in a U shape by a notch shape (or groove) in a direction substantially perpendicular (crossing) with the movement direction of the pedal arm. Similarly, the side connecting member 12 has an arm-side fitting portion 16 formed in an L shape by a notch shape (or groove) in a direction substantially orthogonal (crossing) to the pedal arm moving direction. Both fitting parts are set so that connection and release are allowed in the direction perpendicular to (crossing) the pedal arm movement direction during assembly, so that the connection of both fitting parts is not released in the pedal arm movement direction. (Release is prohibited) In this embodiment, by fitting the U-shape and the L-shape, in the direction orthogonal to the pedal arm movement direction, connection and release are permitted by slidably fitting, and in the pedal arm movement direction, the fitting is performed by fitting. Cancellation is prohibited. By the above-described fitting, the tensile strength can be secured in the pedal arm moving direction. It can be said that the above-described two fitting portions are connecting means.

  When an external force of a predetermined value or more acts from the front of the vehicle due to a vehicle collision or the like, the load at that time is input to the wall surface 6 via the master cylinder 8 and the booster 7, and the wall surface 6 is approximately on the vehicle rear side (and approximately vehicle May be displaced upward). The displacement described above is transmitted to the pedal arm 2 via the rod 5 and the connecting member 1. With this displacement, the pedal arm 2 tries to turn from the initial value around the shaft 22 to the rear of the vehicle in the direction opposite to the normal brake movement. The release means 21 disposed integrally with the pedal arm 2 is rotated toward the arm side connecting member 12 by the rotation.

  As shown in FIG. 4, the release means 21 urges the rod side connecting member 11 and / or the arm side connecting member 12 in a direction substantially perpendicular to the pedal arm movement direction in a direction substantially perpendicular to the pedal arm movement direction. The fitting between the fitting portion 15 and the arm-side fitting portion 16 is released by sliding the fitting portion 15 and the arm side fitting portion 16 in a direction substantially perpendicular to the pedal arm moving direction. Release of the displacement to the pedal arm 2 is interrupted by the release of the fitting by the release means 21. For this reason, the backward movement of the pedal arm 2 and the pedal 23 can be suppressed. The release means 21 may bias the rod 5 as long as the connection between the rod side fitting portion 15 and the arm side fitting portion 16 can be released.

  The connecting means and the support portion may be connected and released in a direction corresponding to a trajectory in which the pedal arm moves toward the vehicle interior due to a vehicle collision, or the rod side fitting portion. 15 and the arm-side fitting portion 16 may be fitted in a direction substantially the same as the rotation direction of the release means 21. It is desirable that the fitting shape is a slug or a substantially arc shape. In that case, the release means 21 can be released more smoothly.

  The connecting means may be caulking or press-fitting as long as the connecting means prohibits the release in the pedal arm movement direction and allows the release in the direction crossing the pedal arm movement direction.

  In addition, although the combination of the brake device which has a booster and a master cylinder was shown as an example of the pedal apparatus of this embodiment, this embodiment can also be applied to the brake measures of another system. The pedal may be a link type brake pedal or the like, and the release mechanism is not integrally formed with the pedal arm, and may be disposed on the wall surface of the vehicle body or fixed to the pedal bracket. It may be made by a projected protrusion (pin). Moreover, you may adapt to what a pedal arm reverse | retreats to a vehicle interior at the time of a collision with vehicles, such as an accelerator other than a brake device, a clutch.

  As mentioned above, although embodiment of this invention was illustrated, the said embodiment is an example to the last, Comprising: It is not intending limiting the range of invention. The above embodiment can be implemented in various other forms, and various omissions, replacements, combinations, and changes can be made without departing from the spirit of the invention. In addition, the specifications (structure, type, direction, shape, size, length, width, thickness, height, number, arrangement, position, material, etc.) of each configuration, shape, etc. are appropriately changed. Can be implemented.

  DESCRIPTION OF SYMBOLS 1: Connection member, 11: Rod side connection member, 12: Arm side connection member, 13: Pin, 14: Pin insertion hole, 15: Rod side fitting part (connection means), 16: Arm side fitting part (connection) Means) 2: Pedal arm, 21: Support part, 22: Shaft, 23: Pedal (pedal pad), 3: Pedal bracket, 4: Restriction part, 5: Rod 6: Wall surface, 7: Booster, 8: Master cylinder,

Claims (4)

A pedal bracket fixed in the passenger compartment;
A pedal arm supported on one end side by the pedal bracket and having a pedal pad for receiving a pedaling force by a driver on the other end side, and moving in the front-rear direction of the vehicle;
One end side is connected to the outside of the passenger compartment, the other end side is arranged in the passenger compartment, and the rod moves in the longitudinal direction of the vehicle;
A rod side connecting member fixed to the other end of the rod;
An arm side connecting member fixed between one end side and the other end side of the pedal arm;
The rod-side connecting member and the arm-side connecting member are disposed between the rod-side connecting member and the arm-side connecting member, and connect the rod-side connecting member and the arm-side connecting member. A connection means for prohibiting the release of the connection with the connection member, and allowing the release of the connection between the rod side connection member and the arm side connection member in a direction intersecting the pedal arm movement direction,
When the connecting means moves rearward of the vehicle from the initial position before receiving the pedaling force via the pedal arm, the connecting means biases the connecting means in a direction crossing the pedal arm moving direction. And a vehicle pedal device having release means for releasing the connection.
The pedal arm is supported by the pedal bracket so as to be rotatable around one end side,
The release means is formed integrally with the pedal arm, and the pedal arm rotates when the connecting means moves to the rear of the vehicle from the initial position before receiving the pedaling force via the pedal arm. Energizing the connecting means with a trajectory
The vehicle pedal device according to claim 1, wherein the connecting means performs connection and release in a direction corresponding to the trajectory.
The vehicle pedal device according to claim 1, wherein the connection by the connection means is a fitting.
  The pedal device for a vehicle according to claim 1, wherein the connection by the connection means is caulking or press-fitting.