JP2007022188A - Pedal device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pedal device whose fore-and-aft positioning of a brake pedal and an accelerator pedal is arranged adjustable, in which the relative positioning of the two pedals is changed at the same time as fore-and-aft adjustment of the pedals. <P>SOLUTION: A brake side rotary link 2 and an accelerator side rotary link 3 are mounted on a bracket 1 by shafts 21 and 31 in different positions viewed on the side elevation, and the brake pedal 23 is installed in the lower part of the brake side rotary link 2, while an accelerator holding member 33 to hold the accelerator pedal 37 is installed in the lower part of the accelerator side rotary link 3, and an actuator 4 is installed to control the fore-and-aft direction rotating of the brake side rotary link 2. A coupling member 5 attached fast to the brake side rotary link 2 is engaged slidably in an oval hole 3a provided in the accelerator side rotary link 3, and the fore-and-aft positioning of the brake pedal and accelerator pedal is adjusted while the two links 2 and 3 are rotated by operation of the actuator 4, and at the same time, the relative positioning on the side elevation of the treads of the two pedals is changed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pedal device for a vehicle, and relates to a pedal device capable of moving and adjusting a pedal in the front-rear direction according to, for example, a driver's physique and preference.

In a vehicle pedal device capable of moving and adjusting a plurality of operation pedals such as a brake pedal and an accelerator pedal in the longitudinal direction of the vehicle at the same time, a link mechanism is used as a means for moving the stepping point of the pedal in the longitudinal direction Have been developed in various ways (see, for example, Patent Documents 1 and 2).
JP 2001-278017 A JP 2002-59817 A

  In the pedal device disclosed in Patent Literature 1, an adjustment link is pivotally attached to a bracket fixed to a vehicle body so that the adjustment link can be rotated in the front-rear direction, and a brake pedal and an accelerator pedal are coaxially rotated on the adjustment link. The brake pedal and the accelerator pedal can be moved back and forth simultaneously by rotating the adjustment link back and forth with a screw feed mechanism consisting of a combination of a screw shaft that can be attached and rotated by a motor and a nut that is screwed to the shaft. To move and adjust.

  The thing of this patent document 1 has the advantage that the front-back position of several pedals can be adjusted simultaneously with a simple structure. However, since the accelerator pedal and the brake pedal are coaxially adjusted to rotate in the front-rear direction, the relative position of the tread of the accelerator pedal and the brake pedal remains unchanged even if the front-rear position is changed. There is a problem that a sense of incongruity occurs in the stepping operation and the like.

  More specifically, it is desirable that the relative positions of the accelerator pedal and the brake pedal are appropriately set so that the pedals can be switched without any discomfort. For example, if the relative positions of the treads of the accelerator pedal and brake pedal are set so as to suit the stepping operation of a person with relatively small feet, the distance between the pedals is too close for people with large feet. Operation becomes difficult. On the other hand, when the relative position is adapted to a person with large feet, the distance between both pedal treads is too far for a person with small feet, causing a sense of incongruity in the stepping operation. Therefore, when adjusting the accelerator pedal and brake pedal back and forth simultaneously according to the physique, it is desirable to change the relative position of both treads of the accelerator pedal and brake pedal at the same time, but the accelerator pedal and brake pedal are coaxial. In the configuration of Patent Document 1 in which the forward / backward rotation adjustment is performed, the relative position between the treads of both pedals is not changed, and there is a problem that a feeling of strangeness occurs in the stepping operation of both pedals.

  To change the relative position of multiple pedals such as the accelerator pedal and the brake pedal at the same time as the front / rear position adjustment, it is easy to provide one actuator for each pedal. However, this increases the cost and weight. Problems also arise in terms of installation space.

  As shown in Patent Document 2, if the rotation fulcrums for adjusting the front and rear rotation of the accelerator pedal and the brake pedal are set to different positions, the relative positions of both pedal treads can be changed simultaneously with the front and rear position adjustment. Is possible. However, in Patent Document 2, in order to adjust the front and rear of both pedals having different rotation fulcrum positions with a single actuator (screw feed mechanism), the two pedals are connected by a parallel link mechanism, and the two link pedals are connected by the parallel link mechanism. The structure which absorbs the difference of the back-and-forth rotation adjustment amount is taken. Thus, the thing of the structure which connects between both pedals with a parallel link mechanism has the subject that there are many components and a structure becomes complicated, cost becomes high, and also the whole pedal apparatus becomes large.

  In addition, since the parallel link mechanism is interposed between both pedals, it is difficult to apply the parallel link mechanism when the rotation fulcrum of both pedals is close to the side view. Have.

  The present invention aims to solve the above-described conventional problems.

  According to the first aspect of the present invention, there is provided a brake side rotation link that is pivotally attached to a bracket attached to a vehicle body side member so that the upper portion can be rotated in the front-rear direction, and an upper portion at a side of the brake side rotation link. The bracket has an accelerator side pivot link pivotally mounted at a position different from the brake side pivot link in a side view, and a brake pedal is disposed below the brake side pivot link. A pedal device having an accelerator pedal holding member attached to the lower portion of the accelerator side rotation link so that the accelerator pedal can be rotated, wherein the brake side rotation link and the accelerator side are mounted. An actuator for controlling the forward / rearward rotation of one of the rotation links is provided, and an elongated hole in the vertical direction is provided on the other rotation link. The other end of the connecting member with one end fixed to the link is slidably fitted into the elongated hole provided in the other rotating link to connect the both rotating links. The brake side rotation link and the accelerator side rotation link rotate to change and adjust the front and rear positions of the brake pedal and the accelerator pedal, and at the same time, the relative position in the side view of the brake pedal and the accelerator pedal changes. It is characterized by this.

  According to a second aspect of the present invention, in the first aspect, the actuator is supported by a motor attached to the bracket and a fixed side member such as a motor case so that the motor rotates at a reduced speed and does not move in the axial direction. And a nut member screwed onto the screw shaft. The nut member is fixed to either the brake side rotation link or the accelerator side rotation link, and is driven by a motor. The nut member is screwed in the front-rear direction by the rotation of the screw shaft, and the one rotation link is rotated in the front-rear direction.

  According to the present invention, as described in the first and second aspects, the brake-side rotation link that supports the brake pedal so as to be adjustable in the front-rear direction, and the accelerator-side rotation link that supports the accelerator pedal so as to be adjustable in the front-rear direction. The pivoting position of the pivot links to the bracket is set to a position shifted up and down and back and forth in a side view, and a connecting member for coupling the pivot links is fixed to one pivot link and fixed to the other pivot. Since the moving link is fitted into the elongated hole, the difference in the rotation trajectory due to the deviation of the rotation center of both the rotating links is absorbed by the sliding in the elongated hole of the connecting member. The two pivot links can be simultaneously pivoted in the front-rear direction to adjust the front-rear position of both the brake pedal and the accelerator pedal, and both pedals can be adjusted by shifting the pivot center of both pivot links. It can be adjusted and also changes the relative position in a side view between the tread of both pedals simultaneously longitudinal position eliminates the discomfort of exchange process such as depression of both pedals caused by the difference in size of the driver.

  The operation of changing the relative position between the treads of both pedals at the same time as the adjustment of the front and rear positions of both pedals is made up of a shift in the rotation center position of both rotation links and a simple pipe material, for example. This can be achieved by a very simple configuration of fitting engagement of the connecting member into the elongated hole, and can greatly reduce the cost, make the overall configuration small and compact, and reduce the weight.

  Hereinafter, embodiments of the present invention will be described with reference to the examples of the accompanying drawings.

  In FIG. 1, reference numeral 1 denotes a bracket fixed to a vehicle body side member (a vehicle body or a member fixed to the vehicle body). A brake side rotation link 2 and an accelerator side rotation link 3 are attached to the bracket 1. An actuator 4 for rotating the brake side link 2 and the accelerator side link 3 in the front-rear direction is attached.

  The brake-side rotation link 2 has an upper end portion attached to the bracket 1 so as to be rotatable by a shaft 21, and an upper front end portion of the brake pedal 23 is rotatably coupled to the lower end portion by a shaft 22. A lower end portion of a connecting link 25 is coupled to the rear rear end portion of the brake pedal 23 so as to be rotatable by a shaft 24.

  An intermediate portion of a substantially L-shaped brake operation lever 26 is rotatably attached to the shaft 21, and one end portion of the brake operation lever 26 is rotated about the upper end portion of the connecting link 25 by the shaft 27. The other end of the brake operating lever 26 is connected to a push rod 28 (only the center line is shown in FIG. 1) for operating the master cylinder directly or via a booster.

  The accelerator-side rotation link 3 is attached to the bracket 1 so that the upper end of the accelerator-side rotation link 3 can be rotated by the shaft 31 at the side position of the brake-side rotation link 2. The pivot point of the moving link 3 is different from the attachment point of the brake-side pivot link 2 by the shaft 21, that is, the pivot point of the brake-side pivot link 2 in a side view, for example, as in the illustrated embodiment. The shaft 31 is set at a position slightly above the shaft 21 and forward. Further, the length of the accelerator side rotation link 3 is longer than that of the brake side rotation link 2, and the lower end portion of the accelerator side rotation link 3 whose upper end portion is attached to the bracket 1 by the shaft 31 located above the shaft 21. Is set below the lower end of the brake-side rotation link 2. An upper front end portion of the accelerator pedal holding member 33 is rotatably supported by a shaft 32 at the lower end portion of the accelerator side rotation link 3, and an auxiliary link is provided at the upper rear end portion of the accelerator pedal holding member 33. A lower end portion of the auxiliary link 35 is rotatably connected to a shaft 34, and an upper end portion of the auxiliary link 35 is supported on the bracket 1 to be rotatable about a shaft 36.

  An accelerator pedal 37 is rotatably supported on the accelerator pedal holding member 33, and an operation amount sensor 38 that emits an electrical signal in accordance with the rotation angle (depression amount) of the accelerator pedal 37 is incorporated therein. ing.

  The actuator 4 includes a motor 41, a screw shaft 42 that is rotationally driven by the motor 41 via a speed reduction mechanism, and a nut member 43 that is screwed to the screw shaft. The nut member 43 is attached to an intermediate portion between the upper and lower shafts 21 and 22 of the brake side rotation link 2 so as not to rotate, and the screw shaft 42 is driven by the motor 41. , And the nut member 43 screwed to the screw shaft 42 is screw-fed in the front-rear direction, whereby the brake-side rotation link 2 is rotated in the front-rear direction around the shaft attachment portion by the shaft 21 at the upper end. It is something to move.

  Reference numeral 5 denotes a connecting member that connects the brake-side rotation link 2 and the accelerator-side rotation link 3, and is made of, for example, a simple pipe material or a rod-shaped member. One end portion of the connecting member 5 is fixed to the brake side rotation link 2, and the other end portion extends sideways and slides into a long hole 3 a in the longitudinal direction (vertical direction) provided in the accelerator side rotation link 3. It is movably fitted.

  The connecting position of the brake-side rotating link 2 and the accelerator-side rotating link 3 by the connecting member 5 can be selected at any position between the upper and lower shafts 21 and 22, but the upper ends of both the rotating links 2 and 3. In order to increase the change in the relative position between the lower end shafts 22 and 32 caused by the front-rear direction rotation about the shafts 21 and 31, the rotation links 2 and 3 as shown in the illustrated embodiment. It is preferable to connect the rotary links 2 and 3 at positions closer to the shafts 21 and 31 than the intermediate portion.

  In the above, the brake side rotation link 2 is fixed by screwing the screw shaft 42 of the actuator 4 and the nut member 43, and is connected to the brake side rotation link 2 by the connecting member 5. The rotation link 3 is also fixed. When the brake pedal 23 is depressed in this state, the brake pedal 23 rotates clockwise around the shaft 22 in the drawing, and the brake operation lever 26 is moved around the shaft 21 via the shaft 24, the connecting link 25, and the shaft 27. The master cylinder of the brake device (not shown) is operated via the push rod 28 by rotating clockwise in the drawing. When the foot is released from the brake pedal 23, the brake pedal 23, the connecting link 25, the push rod 28 and the like are returned to their original states by a return spring (not shown).

  When the accelerator pedal 37 is depressed, the operation amount sensor generates an electrical signal corresponding to the depression amount, and fuel supply control to the engine is performed using the electrical signal.

  Here, when the motor 41 is rotated in one direction from the state of FIG. 1 (initial state) and the nut member 43 is screwed backward by the rotation of the screw shaft 42, the brake-side rotation link 2 is centered on the shaft 21. As shown in the figure, it rotates counterclockwise, and the shaft 22 at the lower end is displaced rearward. The brake pedal 23 is also displaced rearward along with the rearward displacement of the shaft 22. In this case, since the brake operation lever 26 does not move, the connecting link 25 forms a parallel link mechanism substantially parallel to the brake side rotation link 2. Thus, the connecting link 25 rotates around the shaft 27 in the counterclockwise direction as shown in the figure, the brake pedal 23 translates backward, and the angle of the tread surface 23a does not change.

  Since the brake side rotation link 2 and the accelerator side rotation link 3 are connected by the connecting member 5, the accelerator side rotation link 3 is also connected to the shaft 31 at the upper end as the brake side rotation link 2 rotates. Is pivoted counterclockwise in the figure, and the shaft 32 at the lower end is displaced rearward. Then, since the parallel link mechanism is formed by the accelerator side rotation link 3 and the auxiliary link 35, the auxiliary link 35 also rotates in the counterclockwise direction around the shaft 36, and the accelerator pedal holding member 33 is The angle of the tread surface 37a of the accelerator pedal 37 does not change.

  The brake side rotation link 2 and the accelerator side rotation link 3 are different in the positions of the shafts 21 and 31 that are the rotation centers of the brake side rotation link 2 and the rotation locus of the connection portion by the connection member 5. The difference in the rotation trajectory is that the connecting member engaging hole of the accelerator side rotating link 3 is a long hole 3a in the link longitudinal direction (vertical direction), and one end of the connecting member 5 is fixed to the brake side rotating link 2. Absorption can be achieved by sliding movement with the other end engaged in the elongated hole 3a.

  When the motor 41 is rotated in the opposite direction, the nut member 43 is screwed forward to simultaneously rotate the brake-side rotation link 2 and the accelerator-side rotation link 3 clockwise in the drawing, and the lower end portion. The brake pedal 23 and the accelerator pedal holding member 33 can be translated forward through the shafts 22 and 32 to return to the initial state shown in FIG.

  The details of the rotation operation of the brake side rotation link 2 and the accelerator side rotation link 3 will be described below with reference to FIG.

  FIG. 2 (A) shows a state (initial state) where the pedal device is positioned most forward of the vehicle body, that is, the same state as FIG. In this state, the vertical distance D and the longitudinal distance L between the shafts 22 and 32 at the lower ends of both the pivot links 2 and 3 are the distance between the tread surface 23a of the brake pedal 23 and the tread surface 37a of the accelerator pedal 37. This corresponds to the positional relationship in the side view in the initial state.

  When the actuator 4 is rotated in one direction from this initial state to the rearmost position shown in FIG. 2B, the vertical distance between the shafts 22 and 32 at the lower end is D ', and the longitudinal distance is L'. . Compared with the initial state, D ′ is smaller than D and L ′ is smaller than L. Therefore, the relative distance between the tread surface 23a of the brake pedal 23 and the tread surface 37a of the accelerator pedal 37 is determined by the rearward displacement of the pedal device. Along with that, it became smaller.

  In this way, with a very simple configuration, the relative positional relationship between the treads of both pedals is changed simultaneously with the adjustment of the front and rear positions of both pedals, so that the feeling of strangeness of the pedal switching operation due to the difference in physique does not occur. The objective can be achieved.

  The magnitude of the relative position change between the pedal surfaces of the pedals is the length and / or shape of the brake-side rotation link 2 and the accelerator-side rotation link 3, and the shaft landing point (axis) of the links 2 and 3 on the bracket. It can be arbitrarily set by changing the positional relationship of 21 and 31), the connecting position of the links 2 and 3 by the connecting member 5, and the like.

  Further, the present invention is not limited to the illustrated specific structural example, and can be applied to any configuration within the scope of the object of the present invention. For example, the actuator 4 rotates the accelerator side rotation link 3, and the connecting member 5 having one end fixed to the accelerator side rotation link 3 has the other end provided in the brake side rotation link 2 in the longitudinal direction ( It may be configured such that the rotation of the accelerator-side rotation link 3 is transmitted to the brake-side rotation link 2 by being slidably fitted in the elongated hole in the vertical direction). Further, the linkage mechanism between the brake pedal 23 and the push rod 28 is not limited to the illustration, and an arbitrary configuration can be adopted. The actuator 4 is not limited to the illustration, and one of the rotary links 2 and 3 is connected. Any device that can be rotated in the front-rear direction around the axis of the upper end can be employed.

The Example of this invention is shown and it is a side view of a pedal apparatus. It is a side view explaining the operation | movement aspect of the brake side rotation link shown in FIG. 1, and an accelerator side rotation link, (A) is the state which made the pedal apparatus the foremost position (initial position), (B) is a pedal apparatus. Each state is shown as the last position. It is the front view which looked at the brake side rotation link and the accelerator side rotation link shown in FIG. 2 from back, and has shown the principal part in the cross section.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bracket 2 Brake side rotation link 3 Accelerator side rotation link 4 Actuator 5 Connecting member 21, 22, 24, 27 Axis 23 Brake pedal 25 Connection link 26 Brake operation lever 28 Push rod 31, 32, 34, 36 Axis 33 Accelerator Pedal holding member 35 Auxiliary link 37 Accelerator pedal 38 Operation amount sensor 41 Motor 42 Screw shaft 43 Nut member

Claims (2)

  A brake-side rotation link that is pivotally attached to a bracket attached to the vehicle body-side member so that the upper portion thereof is pivotable in the front-rear direction, and an upper portion of the bracket on the side of the brake-side rotation link is the brake-side rotation link. Has an accelerator side pivot link pivotally mounted at different positions in a side view so that the brake pedal can be pivoted at the lower part of the brake side pivot link. The pedal device is provided with an accelerator pedal holding member for holding the accelerator pedal so that the accelerator pedal can be rotated at a lower portion of the rotation link, and one of the brake side rotation link and the accelerator side rotation link is provided. An actuator for controlling the rotation of the rotating link in the front-rear direction is provided, and an elongated hole in the vertical direction is provided in the other rotating link, and one end is fixed to the one rotating link. The other end of the member is slidably fitted and engaged in an elongated hole provided in the other rotation link to connect the both rotation links, and the brake side rotation link and the accelerator side are operated by the operation of the actuator. The vehicle is characterized in that the rotation link rotates to change and adjust the front and rear positions of the brake pedal and the accelerator pedal, and at the same time the relative position of the brake pedal and the accelerator pedal in the side view changes. Pedal device.   The pedal device for a vehicle according to claim 1, wherein the actuator includes a motor attached to the bracket, and a screw supported by a fixed side member such as a motor case so as not to move in the axial direction while being decelerated and rotated by the motor. And a nut member screwed onto the screw shaft, and the nut member is fixed to one of the brake side rotation link and the accelerator side rotation link. A pedal device for a vehicle, wherein the nut member is screwed in the front-rear direction by the rotation of the first rotation link, and the one rotation link is rotated in the front-rear direction.

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