JPH04201740A - accelerator operating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention A3 Object of the Invention (1) Field of Application in M Business The present invention has a pedal part at the upper end and when extending vertically, the lower end swings to the vehicle body frame via a pivot. The present invention relates to an accelerator operating device that includes a removably supported accelerator pedal, a return spring that biases the accelerator pedal in the return direction, and a potentiometer that detects the amount of operation of the accelerator pedal.

(2) Conventional technology Conventionally, the accelerator pedal is connected to the throttle valve via a transmission means such as a wire, and the throttle valve is directly driven by the accelerator pedal. A system has also been developed that uses a potentiometer to electrically detect the throttle valve and drive the throttle valve using a motor in accordance with the detected value.

(3) What the invention seeks to solve! ! By the way, the space around the driver's seat of a vehicle, especially the space behind the accelerator pedal, is very narrow, and in order to arrange the accelerator operating device including the accelerator pedal, return spring, and potentiometer in a narrow space, it is difficult to arrange the accelerator operating device. It is necessary to be compact, and it is desirable that the return spring, potentiometer, etc. be arranged in a position that does not interfere with the operation of the accelerator pedal.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an accelerator operating device that is compact and does not cause any hindrance to the operation of the accelerator pedal.

B1 Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, according to the present invention, a support frame is fixed to the vehicle body frame at the back of the accelerator pedal, and the support frame is fixed to the vehicle body frame at the back of the accelerator pedal. A shaft having parallel axes is rotatably supported by the support frame, a drum connected to the accelerator pedal via a wire is fixed to the shaft within the support frame, and a coil is interposed between the drum and the support frame. A return spring is disposed in a support frame surrounding the shaft, and a potentiometer coupled to the shaft is mounted on a side surface of the support frame.

(2) Effects According to the above configuration, the amount of operation of the accelerator pedal is converted into an angular displacement of the shaft via the right wire and the drum, so that the amount of displacement of the wire can be converted into a relatively large amount of angular displacement of the drum. By detecting the enlarged angular displacement amount with a potentiometer, it is possible to reliably detect the accelerator operation amount.

Moreover, the support frame is arranged on the back of the accelerator pedal, the return spring and the drum are arranged in the support frame, and the potentiometer is attached to the side of the support frame, so that the return spring, the drum and the potentiometer are arranged on the back of the accelerator pedal. There will be no problem with the operation.

(3) Examples An embodiment of the present invention will be described below with reference to the drawings.

Figure vR1 is a side view of the device of the present invention, and Figure 2 is a side view of the device of the present invention.
3 is a sectional view taken along line 2 in FIG. 2, FIG. 4 is a sectional view taken along line IV--IV in FIG. 2.

First of all, in FIGS. 1 to 3, this accelerator operating device is disposed at the front inside the driver's seat of a vehicle, and includes an accelerator pedal 2 that is swingably supported on a vehicle body frame l, and an accelerator pedal 2. The accelerator pedal 2 includes a coil-shaped return spring 3 that biases the accelerator pedal 2 in the return direction, and a pair of potentiometers 4.4 that detect the amount of operation of the accelerator pedal 2.

The accelerator pedal 2 has a pedal portion 2a at its upper end and extends vertically, and has pivot portions 2b, 2b projecting from its lower end. Further, a bearing member 5 is fixed to the floor of the vehicle body frame 1 in the front part of the driver's seat of the vehicle, and the bearing member 5 that fits the aforementioned pivot parts 2b, 2b allows the accelerator pedal 2 to swing about the pivot parts 2b, 2b as fulcrums. It is possible to move.

Furthermore, a stopper 6 is provided on the back of the accelerator pedal 2 and protrudes from the vehicle body frame 1 to abut against the pedal portion 2a and to restrict the maximum depression position of the accelerator pedal 2. Thereby, the accelerator pedal 2 can swing between a return position shown by a solid line in FIGS. 1 and 3 and a maximum depression position shown by a chain line in FIGS. 1 and 3.

Referring also to FIG. 4, at a position below the stopper 6, the back of the accelerator pedal 2 has a body frame 1
The support frame 7 is arranged so as to be fixed to. This support frame 7 is
It consists of a frame 8 and a frame plate 9 coupled to the frame 8, and has a substantially U-shaped cross-sectional shape open to the accelerator pedal 2 side. That is, the frame body 8 has a support plate portion 8a.
and a side plate part 8b are arranged in a row in an oval shape in cross section, and the base end of the frame plate 9 is fastened to the end of the support plate part 8a by a pair of poles 10 and 10. Further, between the ends of the side plate portion 8b and the frame plate 9 on the accelerator pedal 2 side, there is a connecting rod 11 and nuts 12 screwed into both ends of the connecting rod 11, respectively.

They are interconnected via 12.

A shaft 15 having an axis parallel to the swing axis of the accelerator pedal 2 is rotatably supported on the support frame 7 . That is, bearing parts 13.14 are coaxially protruded from the side plate part 8b and the frame plate 9 of the frame body 8 so as to face each other, and both ends of the shaft 15 are supported by these bearing parts 13.14. Rotatably supported. Moreover, a drum 16 surrounding the bearing part 13 is fixed to a portion of the shaft 15 near the side plate part 8b with a nut 17, and a groove 18 is provided on the outer periphery of the drum 16.

By the way, an arm 2C extending to one side of the support frame 7, that is, to the side of the frame plate 9, is attached to the accelerator pedal 2, and one end 19a of the wire 19 is engaged with the tip of the arm 2C. Thus, #19a of the wire 19 moves substantially linearly up and down in response to the operation of the accelerator pedal 2.

Further, a support plate 21 is fixed to the upper outer surface of the frame plate 9, and one end portion of the guide tube 20 through which the wire 19 is movably inserted passes through the support plate 21 in a movable manner. In addition, a pair of oaks that come into contact with both the upper and lower surfaces of the support plate 21) 22.2
3 is screwed into the guide tube 20, and their nuts) 22
．． By adjusting the screwing position of 23, the fixing position of the guide tube 20 to the support plate 21 is adjusted. Furthermore, the guide tube 20
The other end is fixed by a nut 25 to a support plate 24 projecting from a side plate 8b of the frame 8 at a position above the drum 16. The guide tube 20 is curved into an upwardly bulging arc between the surface support plates 21 and 24.
A wire 19 protruding from the drum 16 is wound around the groove 18 of the drum 16, and the other end 19b of the wire 19 is engaged with the drum 16. Therefore, the swinging operation of the accelerator pedal 2 is transmitted to the drum 16 via the wire 19, and the shaft 15, which is integral with the drum 16, is rotated. Moreover, the diameter of the groove 18 in the drum 16 is set relatively small in order to convert a substantially linear displacement of the wire 19 into a relatively large angular displacement of the drum 16 or shaft 15.

In the support frame 7, a return spring 3 is disposed between the frame plate 9 and the drum 16, surrounding the shaft 15, and one end 3a of the return spring 3 is provided at the lower part of the frame plate 8. The other end 3b is engaged with an engaging portion 27 provided on the outer periphery of the drum 16. Then the return spring 3
exerts a spring force that biases the accelerator pedal 2 toward the return side via the drum 16, that is, the wire 19.

A cover plate 29 that forms a gear chamber 28 between the side plate part 8b and the side plate part 8b of the frame body 8 of the support frame 7 is provided on the outer surface of the one side plate part 8b.
are fitted and abutted. The cover plate 29 is provided with: potentiometers 4 at vertically symmetrical positions with respect to the shaft 15;
A cover 33.33 that fits into the opening 32.32 and covers a part of the cover plate 29 and the potentiometer 4.4 that fits into the opening 32.32 and comes into contact with the side plate 8b. and a pair of screw members 34 and 34, respectively.
The cover plate 29 and both potentiometers 4.4 are attached to the side plate 8b together with the cover plate 29 and both potentiometers 4.4.

A gear 30 is fixed to the end of the shaft 15 in the gear chamber 28, and the input shafts 4a, 4 of both potentiometers 4.4
A gear 31.31 fixed to a is meshed with the gear 30. Therefore, the amount of rotation of the shaft 15, that is, the amount of operation of the accelerator pedal 2 is detected by both potentiometers 4.4.

By the way, the outer diameter of the gear 30 connected to the drum 16 and the outer diameter of the gear 31° 31 connected to both potentiometers 4.4 are the same as those of both potentiometers 4.4 with respect to the operating angle α of the drum 16 (see FIG. 3). The operating angle .beta. (see FIG. 3) is set to be large, thereby improving the detection ability of both potentiometers 4.4. Furthermore, the operating angle α of the drum 16 is set to be large relative to the substantially linear movement amount of the wire 19. Therefore, although the vertical movement of the arm 2C in response to the rocking movement of the accelerator pedal 2 is limited to a relatively small range due to the arrangement in a relatively narrow space, the wire 1
9 into a relatively large angular displacement of the drum 16, which can then be magnified and detected by the two potentiometers 4.4.

Next, to explain the operation of this embodiment, the wire 19 operates almost linearly in response to the rocking operation of the accelerator pedal 2, and the drum 16
and the shaft 15 is actuated by an angular displacement, and the amount of the angular displacement actuation is detected by both potentiometers 4.4 via the gear 30 and the gear 31. The valve is activated.

Moreover, since the support frame 7 is fixed to the vehicle body frame 1 at the back of the accelerator pedal 2, power is distributed to the support frame 7 in the space inevitably created when operating the accelerator pedal 2.
Empty space can be used effectively.

Also, the components other than the accelerator pedal 2 and the wire 19, namely the return spring 3, the shaft 15, the drum 16 and both potentiometers 4. -4 can be compactly assembled to the support frame 7, and can be placed in a narrow space. Furthermore, the movable parts, namely the shaft 15, the drum 16 and the return spring 3, are arranged in the support frame 7, so that
Even if the driver steps forward beyond the accelerator pedal 2, the operation of these movable parts will not be disrupted. Furthermore, since the accelerator operation amount is detected by the pair of potentiometers 4.4, even if one of the potentiometers 4 is out of order, the accelerator operation amount can be reliably detected by the other potentiometer 4.

C0 Effects of the Invention As described above, according to the present invention, a support frame is fixed to the vehicle body frame at the back of the accelerator pedal, and a shaft having an axis parallel to the rocking axis of the accelerator pedal is rotatable to the support frame. A drum supported and connected to an accelerator pedal via a wire is fixed to the shaft within a support frame, and a coiled return spring interposed between the drum and the support frame surrounds the shaft and is secured within the support frame. Since the potentiometer connected to the shaft is attached to the side of the support frame, the spring, drum, and potentiometer can be compactly assembled and returned to the support frame placed on the back of the accelerator pedal. The return spring, drum, and potentiometer do not interfere with the operation of the accelerator pedal, and the arrangement of the movable part within the support frame prevents the driver's foot from disturbing the operation of the movable part. It can be prevented. Moreover, since the linear movement of the wire is converted into the rotation of the drum, by setting the diameter of the drum to be relatively small, the amount of operation of the accelerator pedal can be magnified and detected, allowing comparison of the back of the accelerator pedal. Even if the drum is placed in a narrow space, it is possible to reliably detect the amount of accelerator operation.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the device of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG.
Figure 3 is a view from the ■ arrow in Figure 2, and Figure 4 is a view of IV- in Figure 2.
FIG. 3 is a cross-sectional view taken along line IV. 1... Vehicle body frame, 2... Accelerator pedal, 2a
... Pedal part, 3... Return spring, 4-... Potentiometer, 7... Support frame, 15... Shaft, 16...
Drum, 19... Wire Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] An accelerator pedal (2) having a pedal portion (2a) at its upper end, extending vertically, and having a lower end swingably supported by the vehicle body frame (1), and urging the accelerator pedal (2) in the return direction. the return spring (3), and the accelerator pedal (2).
), a support frame (7) is fixed to the vehicle body frame (1) at the back of the accelerator pedal (2), and a support frame (7) is fixed to the vehicle body frame (1) at the back of the accelerator pedal (2). A shaft (15) having an axis parallel to the dynamic axis is rotatably supported by the support frame (7), and a drum (16) connected to the accelerator pedal (2) via a wire (19) is attached to the support frame ( 7) in the shaft (15
), a coiled return spring (3) interposed between the drum (16) and the support frame (7) is disposed within the support frame (7) surrounding the shaft (15), and (7) An accelerator operating device characterized in that a potentiometer (4) connected to the shaft (15) is attached to the side surface of the accelerator.