JPH0567966B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention applies to accelerators, brakes,
This invention relates to a foot pedal that can be adjusted forward and backward to operate a clutch, etc.

[Prior Art] Generally, the accelerator, brake, clutch, etc. of an automobile are operated using a foot pedal. Conventionally,
This foot pedal has an arm rotatably supported on a bracket fixed to the vehicle's dash panel, and a rod or wire connected to the accelerator, brake, or clutch is connected near one end of the arm, and the other end is connected to a rod or wire that connects to the accelerator, brake, or clutch. A pedal is attached to the part, and when the driver presses the pedal with his foot, a rod or wire is pushed or pulled to operate the accelerator, brake, or clutch.

By the way, since the height of the pilot varies from person to person, he or she may not be able to reach the pedals with his or her feet.In such cases, the seat can be adjusted by sliding it forward. Also, if you are taller than the standard, you will have to slide the seat backwards. If the seat is slid backwards, the leg space for the person sitting in the rear seat becomes narrower, making the seat uncomfortable. However, when the seat is slid in this manner, the viewing point of the pilot naturally changes, so the viewing point varies depending on individual differences in height. In the same vehicle, it is inherently undesirable for the viewing point to change every time the driver changes, as this changes the viewing angle and causes a difference in the width and narrowness of the field of view.

Therefore, there are known configurations in which the pedals can be adjusted back and forth in order to change the position of the pedals without sliding the seat (for example, Japanese Patent Publications No. 50-6694, No. 50-34814, and other U.S. (See Patent No. 3151499, Patent No. 3563111, etc.)

[Problems to be Solved by the Invention] However, according to the above-mentioned conventional example, the structure tends to be complicated, leading to high costs, and
Although there are problems with maintenance and there are simple configurations, it is questionable whether or not safety can be ensured sufficiently in actual use, regardless of theory, and thus, actual use is possible. It can be said that it has not yet been completed.

However, in this day and age of advanced automobiles, it can no longer be said that it is desirable to operate the pedals by adjusting individual differences in height by sliding the seat, due to the above-mentioned circumstances.

Therefore, in view of the above-mentioned circumstances, the present invention was made with the object of providing an adjustable pedal that can be used in practice and is adjustable back and forth.

[Means for Solving the Problems] In order to solve the above problems, the present invention includes a bracket fixed to a vehicle body, a frame rotatably supported by the bracket, and a frame capable of being moved in parallel in the width direction. a pedal arm that is attached to the pedal arm so that the pedal pad can move in a straight line; and an adjustment lever that maintains a constant lever ratio in conjunction with the movement of the pedal arm and maintains a constant length of pushing or pulling the operating rod. A foot-operated pedal that can be adjusted forward and backward includes a stop lever that is rotatably attached to the frame and rotates in conjunction with the pedal arm to regulate the stroke of the pedal arm.

[Function] According to the above-mentioned configuration of the present invention, the position of the pedal pad can be adjusted by moving back and forth so as to be placed appropriately for each operator who has different heights, and the pedal pad and the pedal arm supporting it can be adjusted. The position of the pedal pad is always maintained at a constant height through parallel movement, and the moving length of the operating cable is always maintained constant even when adjusted back and forth.

[Example] Next, an example of the present invention will be described based on the drawings. This example was implemented on the accelerator pedal,
As shown in FIGS. 1 and 2, a frame 3 is rotatably attached to a bracket 1 fixed to a vehicle body such as a dashim panel through a shaft 2, and is rotated counterclockwise as shown in FIG. 1 by means of a return spring 30. It is rotatably biased and pivoted. An accelerator operating lever 5 serving as an operating rod is rotatably supported on the bracket 1 via a shaft 4, and an operating cable 6 such as an accelerator operating wire is connected to the upper end thereof in the drawing. The frame 3 is provided with two parallel elongated holes 7 and 7a extending in the width direction. Further, a shaft 8 is located near the left end in the figure between the elongated holes 7 and 7a of the frame 3.
An adjustment lever 9 is rotatably attached via the shaft. The adjustment lever 9 has an inverted Z shape, and an arcuate hole 9b is formed in an arcuate portion 9a. arcuate hole 9
The curvature of b is not constant, and the distance DS between the shaft 2 and the shaft 10 (described later) is changed proportionally to the change in the distance DL between the shaft 2 and the center of the pedal pad 18,
Even when the position of a pedal pad 18 is adjusted by moving back and forth, a constant lever ratio is maintained and the force applied to an accelerator operating lever 5 is made constant. The adjustment lever 9 also includes a lever portion 9c extending to the left side of the shaft 8 in the drawing.
The accelerator operating lever 5 is rotatably connected to the end of the lever portion 9c via a shaft 10. The shaft 10 is engaged with an arcuate hole 5a formed in the accelerator operating lever 5. A pin 11 that engages with the arcuate hole 9b and the elongated hole 7 protrudes from the upper end of the pedal arm 12 with a collar 11b, and a pin 11a that engages with the elongated hole 7a protrudes from the pedal arm 12 with a collar 11b. . A stop lever 14 provided with a guide hole 13 that engages with this pin 11a is rotatably supported by the frame 3 via a shaft 15. The guide hole 13 has a length that can sufficiently absorb the stroke of the pins 11, 11a moving along the elongated holes 7, 7a and the arcuate hole 9b. The stop lever 14 is formed with an arc-shaped vertically bent edge 16.
comes into contact with a stopper 17 consisting of an arcuate protrusion of an arm 1a integrally formed with the bracket 1. The curvature of the vertically bent edge 16 is formed so that when the pedal arm 12 is adjusted to move back and forth and is depressed, it can always come into contact with and separate from the stopper 17 with a constant stroke. Further, the bracket 1 is integrally formed with a stopper 1b that prevents the frame 3 from rotating counterclockwise as shown. A pedal pad 18 is attached and fixed to the lower end of the pedal arm 12 in the drawing. The pin 1 that engages with the elongated holes 7 and 7a
A connecting plate 19 is attached to the connecting plates 1 and 11a, a screw nut 20 is fixed to the connecting plate 19, and a screw rod 2 is attached to the screw nut 20.
1 are screwed together, and the screw rod 21 is connected to the frame 3.
It is rotatably supported by cut and raised parts 3a and 3b, and can be rotated forward and backward by an electric motor 22 fixed to the cut and raised parts 3b. As in the previous embodiment, the electric motor 22 is provided with a switch that allows the operator to select and control forward and reverse rotation.
Further, a tension spring 23 is suspended between the bracket 1 and the stop lever 14. This tension spring 23 supports the weight loaded on the frame 3 and nullifies the load on the return spring 30.

Next, the action of the accelerator pedal will be explained.

First of all, if the pedal arm 12 is not adjusted back and forth, it is used in the state shown by the solid line in FIG. 1. That is, the pedal arm 12 has the pin 11,
11a are located at the leftmost end of the elongated holes 7, 7a, respectively, and the pin 11 is located at the leftmost end of the arcuate hole 9b of the adjustment lever 9. Therefore, when the pedal pad 18 is depressed in this state, the pedal arm 12 and the frame 3 integrally rotate clockwise around the shaft 2, as shown by the imaginary line in FIG. Lever 9 rotates accelerator operating lever 5 clockwise about its axis. When the accelerator lever 5 rotates clockwise, the operating lever 6 moves to the right in the figure to operate a transmission (not shown). When the pedal arm 12 rotates to the left in the maximum limit diagram, the vertical bent edge 16 of the stop lever 14 comes into contact with the stopper 17, and the rotation stroke of the pedal arm 12 is restricted. Furthermore, when you take your foot off the pedal pad 18,
By the force of the return spring 30, the pedal arm 12 and the frame 3 are integrally rotated counterclockwise about the shaft 2, returning to the original state as shown by the solid line in FIG.

To adjust the position of the pedal pad 18 back and forth, the pedal arm 12 is moved toward the operator as shown by the phantom line in FIG. That is, a switch for starting the electric motor 22 in forward rotation is appropriately selected and operated, the screw rod 21 is rotated in the forward direction, and the position of the screw nut 20 is moved in a direction parallel to the elongated hole. When the screw nut 20 moves, the pins 11 and 11a simultaneously move to the right in the figure along the long holes 7 and 7a via the connecting plate 19,
As the pin 11 moves, the adjustment lever 9 rotates counterclockwise about the shaft 8. Therefore, as shown by the solid line in FIG. 4, the pedal arm 12 moves away from the bracket 1, that is, approaches the operator's side, and the rotation angle of the adjustment lever 9 is regulated by the arcuate hole 9b and the pin 11, and the shaft 10 moves while being guided by the arcuate hole 5a, and the accelerator lever 5 rotates counterclockwise about the shaft 4, making adjustments to keep the tension length of the operating cable 6 constant. On the other hand, as the pin 11a moves, the stop lever 14 rotates clockwise in the drawing about the shaft 15, and its vertically bent edge 16 rotates. In this state, when the pedal pad 18 is depressed with the foot, the pedal arm 12 and the frame 3 integrally rotate clockwise around the shaft 2 as shown in the phantom line in FIG. when the accelerator operating lever 5 is aligned with the shaft 4.
Since the operating cable 6 rotates clockwise around the center and moves to the right in the figure, the transmission (not shown) is operated. The maximum rotation angle of the pedal arm 12 is regulated by the vertical bent edge 16 of the stop lever 14 coming into contact with the stopper 17. When you take your foot off the pedal pad 18, the pedal arm 12 and the frame 3 are integrally rotated counterclockwise around the shaft 2 by the force of the return spring 30, and the frame 3 is rotated as shown by the solid line in FIG. A part of the bracket 1 comes into contact with the stopper 1b of the bracket 1 and is stopped. Therefore, even if the position of the pedal pad 18 is adjusted toward the operator,
Since the accelerator operating lever 5 is kept at the same position as the unadjusted state by the adjusting lever 9 and the lever ratio is adjusted, the tension length of the operating cable 6 is constant, and the operating cable 6 is There is no danger of pulling it beyond the specified length.

[Effects of the Invention] According to the invention described above, there is a bracket fixed to the vehicle body, a frame rotatably supported by the bracket, and a pedal pad attached to the frame so as to be movable in parallel in the width direction. A pedal arm that can move in a straight line, an adjustment lever that maintains a constant lever ratio in conjunction with the movement of the pedal arm, and that maintains a constant pushing or pulling length of the operating rod, and is attached to the frame. and
It consists of a stop lever that rotates in conjunction with the pedal arm and regulates the stroke of the pedal arm, so when it is used as an operating lever for the accelerator, brake, or clutch of a car,
The pedal arm can be adjusted back and forth, which eliminates operational inconveniences and differences in viewing points caused by individual differences in height in the same vehicle, ensuring safe driving. Furthermore, even if the pedal arm is adjusted back and forth, the stop lever is linked to keep the stroke of the pedal arm constant, resulting in the effect that the operating feeling remains unchanged.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway side view, Figure 2 is Figure 1-
The line sectional view, FIG. 3, and FIG. 4 are action explanatory views, respectively. 1... Bracket, 2, 4, 8, 10, 15...
...Axis, 3...Frame, 6...Operating cable, 9...
Adjustment lever, 11, 11a... Pin, 12... Pedal arm, 13, 13a... Long hole, 14... Stop lever, 16... Standing bent edge, 17... Stopper, 18... Pedal pad, 30... Return Spring.

Claims (1)

[Claims] 1. A bracket fixed to the vehicle body, a frame rotatably supported by the bracket, and a pedal arm attached to the frame so as to be movable in parallel in the width direction, with the pedal pad movable in a straight line;
an adjustment lever that is linked to the movement of the pedal arm to maintain a constant lever ratio and a constant pushing or pulling length of the operating rod; and an adjustment lever rotatably attached to the frame and the pedal. A foot-jumping pedal that can be adjusted forward and backward, comprising a stop lever that rotates in conjunction with the arm and regulates the stroke of the pedal arm.