JP2001228927A - Electronically controlled accelerator pedal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a electronically controlled accelerator pedal device for a vehicle where the stroke transmission loss of an accelerator pedal rod is small and components are reduced as for the electronically controlled accelerator pedal device. SOLUTION: The device is provided with a bracket 10 which has rising parts on the right and left having shaft holes 10c and 10d and cross section of which is U formed, an accelerator pedal arm 11 whose one end is rotatably and pivotally supported by a shaft 13b to the bracket 10 and the other end of which is fixed with a pedal 12, a return spring 14 for returning the arm 11 to its original position and a throttle position sensor 13 with the shaft 13b as a rotary shaft. The sensor main body 13a of the sensor 13 is fixed to the arm 11 and the shaft 13b is fixed to the bracket 10 non-rotatably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electronically controlled accelerator pedal device. More specifically, the present invention relates to an electronically controlled accelerator pedal device for an automobile in which the stroke transmission loss of an accelerator pedal arm is small and the number of components is reduced.

[0002]

2. Description of the Related Art Conventionally, an accelerator pedal device of an automobile has been mechanically controlled, but recently, an electronically controlled accelerator pedal device has been used in order to improve its operability. FIG. 4 is a diagram showing an example of a conventional electronically controlled accelerator pedal device. In FIG.
Is an accelerator pedal rod. The accelerator pedal rod 1 has a metal member 1a formed in a L shape by a sheet metal, and a rod-shaped rod 1b fixed to one end of the metal member 1a.

Reference numeral 2 denotes a case made of sheet metal attached to a vehicle body. The accelerator pedal rod 1 is rotatably attached to the case 2 by a pin 3. A switch 5 is connected to the case 2 via a bracket 4.
, And a throttle position sensor 7 is attached via a fitting 6. The switch 5 is actuated by the accelerator pedal rod 1, and the throttle position sensor 7 is actuated by the accelerator pedal rod 1 via rods 8 having resin clips 8a, 8b attached to both ends.

The throttle position sensor 7
Is a variable resistor, which changes its resistance value by rotating the central shaft 7a and outputs it as an electric signal. The switch 5 is an on / off switch for detecting the on / off state of the accelerator rod. The accelerator pedal rod 1 is provided with a return spring 9 for restoration.

[0005] In the electronically controlled accelerator pedal device constructed as described above, the accelerator pedal rod 1 rotates according to the amount of depression of the accelerator pedal to rotate the throttle position sensor 7, whereby the output of the sensor 7 is increased. A signal is issued to electrically control the amount of fuel supplied to the engine.

[0006]

In the above-mentioned conventional electronically controlled accelerator pedal device, in order to obtain the sensor output, from the input to the accelerator pedal rod 1 by the foot to the sensor output, the accelerator pedal rod 1 → clip 8a →
It requires five parts: the rod 8 → the clip 8 b → the sensor 7. For this reason, there is a problem that the accuracy error of each component is added and appears as a large error in the sensor output. In addition, there is a problem that malfunctions such as erroneous assembly and missing parts occur due to multiple parts.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described conventional problems, and has as its object to realize an electronically controlled accelerator pedal device for an automobile in which stroke transmission loss of an accelerator pedal rod is small and the number of components is reduced.

[0008]

According to the first aspect of the present invention, there is provided a bracket 10 having a U-shaped cross section having right and left rising portions having shaft holes 10c and 10d, and one end of the bracket 10 having a shaft. An accelerator pedal arm 11 rotatably supported by 13b and a pedal 12 attached to the other end, a return spring 14 for returning the accelerator pedal arm 11 to its original position, and the shaft 13b as a rotation axis. A throttle main body 13a of the throttle position sensor 13 is fixed to the accelerator pedal arm 11;
Is fixed to the bracket 10 so as not to rotate.

[0009] In addition, the throttle position sensor 13 is a potentiometer. The shaft 13 of the accelerator pedal arm 11
The bushes 18 and 19 are inserted into the portion in contact with b.

By employing this configuration, the throttle position sensor 1 is directly controlled by the accelerator pedal arm 11.
As a result, an electronically controlled accelerator pedal device for an automobile can be obtained in which the stroke transmission loss of the accelerator pedal arm is small and the number of components is reduced.

[0011]

1 to 3 show an electronically controlled accelerator pedal device according to an embodiment of the present invention. FIG. 1 is a three-sided view, FIG. 2 is an exploded perspective view, and FIG. 3 is an assembled perspective view. It is.
In each figure, reference numeral 10 denotes a bracket, 11 denotes an accelerator pedal arm, 12 denotes a pedal, 13 denotes a throttle position sensor, and 14 denotes a return spring for returning the accelerator pedal arm to its original position.

As shown in FIG. 2, the bracket 10 is formed in a U-shaped cross section by sheet metal, and has an arm supporting portion 10 for supporting an accelerator pedal arm on both sides of a central portion thereof.
a, 10b are formed by rising. An accelerator pedal arm 11 is provided on the arm support portions 10a and 10b.
Shaft holes 10c and 10d for supporting the shaft holes, one of the shaft holes 10c is a round hole, and the other shaft hole 10d.
Is a square hole.

The accelerator pedal arm 11 has a lever shape, and has a pedal mounting hole 11a for mounting the pedal 12 with a pin 15 at one end, and a U-shaped cross section at the other end. Shaft holes 11b and 11c for supporting the bracket 10 are formed in the support portion. A bolt 16 for fixing the main body of the throttle position sensor 13 is implanted on one side of the accelerator pedal arm 11.

The throttle position sensor 13
Has a built-in variable resistor in its main body 13a, and the resistance value is changed by rotating a central shaft 13b to output an electric signal. Also,
A long hole 13c is formed in a boss projecting from the side of the body 13a of the throttle position sensor 13, and a shaft 13
One end of b is formed in the shape of a quadrangular prism, and a hole for inserting a split pin is formed through the two surfaces.

In FIG. 2, reference numeral 17 denotes a spring inserted between the pedal and the arm. Reference numerals 18 and 19 denote inserts between the shaft 13b of the throttle position sensor 13 and the shaft holes 11b and 11c of the accelerator pedal arm 11. , And 20 is a split pin.

The members thus formed are assembled as shown in FIGS. That is, the pedal 12 is attached to one end of the accelerator pedal arm 11 by the pin 15, and the bushes 18 and 19 are fitted into the shaft holes 11b and 11c at the other end. The shaft 13b of the throttle position sensor 13 is sequentially inserted through the bush 18, the shaft hole 10c of the bracket 10, the restoring spring 14, the bush 19, the shaft hole 10d of the bracket 10, and the washer 21, and is fixed by the split pin 20.

As a result, the shaft 13b has its prismatic portion fitted into the square hole 10d of the bracket 10 and is fixed so as not to rotate, while the accelerator pedal arm 11 is connected to the bush 1
It is rotatably supported by the shaft 13b via 8, 19.

The sensor body 13a of the throttle position sensor 13 has its long hole 13d fitted to the bolt 16 of the accelerator pedal arm 11 and fixed by a nut 22. The return spring 14 urges the accelerator pedal arm 11 to rotate in the direction of arrow A in FIG.

In the present embodiment having the above-described structure, the main body 13a of the throttle position sensor 13 is fixed to the accelerator pedal arm 11, and the shaft 13b of the throttle position sensor is fixed to the bracket 10.
Since the accelerator pedal arm 11 can directly drive the throttle position sensor 13, the stroke transmission loss between the accelerator pedal arm 11 and the throttle position sensor 13 can be reduced, and the number of parts can be reduced.

[0020]

According to the electronically controlled accelerator pedal device of the present invention, since the throttle position sensor is directly driven by the accelerator pedal arm, the stroke transmission loss of the accelerator pedal arm can be reduced. , Components can be saved.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of an electronically controlled accelerator pedal device of the present invention, wherein (a) is a plan view, (b) is a side view,
(C) is a view on arrow Z of (a).

FIG. 2 is an exploded perspective view showing an embodiment of the electronically controlled accelerator pedal device of the present invention.

FIG. 3 is an assembled perspective view showing an embodiment of the electronically controlled accelerator pedal device of the present invention.

FIG. 4 is a diagram showing an example of a conventional electronically controlled accelerator pedal device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Bracket 10a, 10b ... Arm support part 10c, 10d, 11b, 11c ... Shaft hole 11 ... Accelerator pedal arm 11a ... Pin hole 12 ... Pedal 13 ... Throttle position sensor 13a ... Throttle position sensor main body 13b ... Shaft 13d ... Long hole 14 ... return spring 15 ... pin 16 ... bolt 17 ... spring 18, 19 ... bush 20 ... split pin 21 ... washer 22 ... nut

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 3D037 EA01 EB02 EB04 EB05 EB25 3G065 CA21 CA23 GA46 JA04 JA09 JA11 KA02 3J070 AA32 BA71 CB02 CB12 CC04 CC07 DA02

Claims (3)

[Claims] 1. A bracket (1) having a U-shaped cross section having left and right rising portions having shaft holes (10c, 10d).
0), an accelerator pedal arm (11) having one end rotatably supported by a shaft (13b) on the bracket (10) and a pedal (12) attached to the other end; and the accelerator pedal arm (11). A return spring (14) for returning the valve to its original position, and a throttle position sensor (13) having the shaft (13b) as a rotation axis, and a sensor body (13a) of the throttle position sensor (13). An electronically controlled accelerator pedal device, wherein is fixed to the accelerator pedal arm (11), and the shaft (13b) is non-rotatably fixed to the bracket (10). 2. The throttle position sensor (1)
3. The electronically controlled accelerator pedal device according to claim 1, wherein 3) is a potentiometer. 3. An electronically controlled accelerator pedal device according to claim 1, wherein a bush (18, 19) is inserted into a portion of said accelerator pedal arm (11) in contact with a shaft (13b).