JPH036531Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a hanging pedal for an automobile that operates the brake or clutch of an automobile.

(Prior Art) As a conventional hanging pedal for automobiles, for example, one shown in FIG. 2 is known.

This conventional hanging pedal for automobiles includes a pedal arm 1 whose upper end is pivotably attached to a pedal mounting bracket 3 provided on a vehicle dash panel 2, and a pedal 4 provided at the lower end of the pedal arm 1. a pushrod 6 connected to the pedal arm 1; and a master cylinder 7 having the pushrod 6, having its rear end fixed to the dash panel 2 and connected to the braking or propulsion mechanism of the automobile. It was composed.

Therefore, when the pedal 4 is depressed to swing the pedal arm 1, the push rod 6 slides, and the pressure applied to the pedal 4 becomes hydraulic pressure in the master cylinder 7 and is transmitted to each mechanism.

(Problem to be solved by the invention) However, in the case of conventional hanging pedals for automobiles, current car designs require that the inside of the car be used as widely and effectively as possible. , press the pedal 4 as much as possible on the needle panel 2.
In addition, there was a desire to place the engine as far back as possible to improve the steering stability of the car, and there was also a desire to make the engine room as compact as possible, and in particular, there was a desire to make the engine room as compact as possible. Because the strut house 20 is located in front of the marster cylinder 7 and the distance between the strut house 20 and the dash panel 2 is narrow, there is a desire to bring the front end 71 of the master cylinder 7 as close to the dash panel 2 as possible. While the above request can be achieved by shortening the distance a from the front end 71 of the master cylinder 7 to the rear end 41 of the pedal 4, the overall length of the master cylinder 7 can be shortened for the following reasons. Moreover, since the pedal 4 cannot be moved forward, the distance a cannot be shortened, and the above-mentioned demands cannot be satisfied at the same time.

In other words, the push rod 6 slides within the master cylinder 7, but the connection point 91 of the pedal arm 1 with the push rod 6 is swung about the pivot shaft 80 of the pedal arm 1, so that it cannot move in the vertical direction. This causes a runout.

Therefore, in order to prevent the master cylinder 7 and the piston (not shown) from being damaged by the vertical vibration, the length of the push rod 6 should be increased to a certain extent so that the connecting point 91 is not damaged. It must be ensured that the vertical vibration of the piston is not transmitted to the piston (not shown).

Therefore, it is difficult to shorten the distance a by shortening the entire length of the master cylinder 7, and if the rear end of the master cylinder 7 is placed inside the vehicle interior, the pedal arm 1 will move rearward.

Further, as shown in Fig. 3, when the hanging angle of the pedal arm 1 is brought closer to vertical and the pedal 4 is brought closer to the dash panel 2, the trajectory of the pedal 4 becomes as shown by arrow b, and the direction in which the pedal 4 is depressed is directed upward. It gets used to it and becomes very difficult to step on.

Therefore, it is also difficult to move the pedal 4 forward to shorten the distance a.

Also, the length c from the pivot 80 of the pedal arm 1 to the connection point 91 with the push rod 6, and the pivot 80
The "pedal weight" when the pedal 4 is depressed is determined by the lever ratio defined by the length d from This has the problem that there is no freedom in selecting the position where the pedal 4 is to be provided.

(Means for Solving the Problems) Therefore, in order to solve the above-mentioned problems, the present invention provides a pedal arm whose upper end is pivotably attached to the vehicle body, and a pedal arm provided at the lower end of the pedal arm. a pedal, which is slid by the swinging of the pedal arm due to the pedal force applied to the pedal;
A suspension pedal for an automobile comprising a master cylinder having the push rod inside and fixed to the vehicle body, wherein an auxiliary arm is swingably suspended at a position rearward of the vehicle body relative to the pedal arm, and
The push rod is connected to the auxiliary arm, and the auxiliary arm is connected to the pedal arm via a link.

(Function) Therefore, when the pedal is depressed, the pedal arm swings around the pivot, the swing of the pedal arm is transmitted to the auxiliary arm via the link, and the auxiliary arm swings around the pivot. .

Next, the swinging motion of the auxiliary arm is transmitted to the push rod, causing the push rod to slide.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
In describing this embodiment, a clutch pedal will be taken as an example, and the same reference numerals will be given to the same parts as in the conventional structure.

The configuration of the embodiment shown in FIG. 1 will be explained.

1 is the pedal arm, and the needle panel 2
A pivot 80 is attached to the pedal mounting bracket 3 provided on the
It is pivoted by.

A pedal 4 is provided at the lower end of the pedal arm 1, and is covered with a pedal pad 5.

Reference numeral 6 is a push rod which is slid by being transmitted with the movement of the pedal arm 1 in the longitudinal direction of the vehicle body due to the force applied to the pedal 4, and one end of which is pivotally connected to the auxiliary arm 8. , and a piston (not shown) is provided at the other end.

7 is a master cylinder in which the push rod 6 and a piston (not shown) are provided, and its rear end is placed inside the passenger compartment and fixed to the dash panel 2 of the vehicle body. is connected to a clutch mechanism (not shown) so that the hydraulic pressure of the clutch mechanism is transmitted to the clutch mechanism (not shown).

Reference numeral 8 denotes an auxiliary arm, which is swingably suspended from a pivot 81 at a position rearward of the pedal arm 1 of the pedal mounting bracket 3, and is connected to the push rod 6 by a connecting pin 9. .

A link 10 connects the lower end of the auxiliary arm 8 to the pedal arm 1, and is connected to both arms 1 and 8 by a pin 11.
In addition, 12 is a stopper pin.

Reference numeral 13 denotes a stopper arm which restricts the backward swinging of the pedal arm 1 by the return spring 14, and is attached to the tip of the pedal mounting bracket 3, with a stopper 15 provided at the lower end. In addition, 16 is a stopper bolt, and 17 is a lock nut.

Next, the operation of the embodiment will be explained. When the pedal 4 is depressed, the pedal arm 1 is swung about the pivot 80 in the forward direction of the vehicle body. Then, that movement becomes link 10
is transmitted to the auxiliary arm 8 via the auxiliary arm 8, and the auxiliary arm 8 is also swung about the pivot shaft 81. Next, the swinging motion of the auxiliary arm 8 is transmitted to the push rod 6 of the master cylinder 7, and the push rod 6 slides, and the hydraulic pressure obtained by the sliding of the push rod 6 is applied to the clutch mechanism (not shown). ) and are manipulated.

Further, when the pedal force applied to the pedal 4 is removed, the pedal arm 1 is swung rearward by the resilient force of the return spring 14 and is stopped at the position where it abuts against the stopper 15.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and even if there are design changes within the scope of the gist of the present invention. include.

For example, the hanging angles of the pedal arm 1 and the auxiliary arm 8, the mounting position of the link 10, and the fixing position of the master cylinder 7 can be appropriately determined according to various conditions.

Further, the return spring 14 may be provided on the auxiliary arm 8, or both the pedal and auxiliary arms 1, 8
may be provided.

Further, the restricting means by the stopper 15 may be any kind of means.

(Effects of the invention) As described above, according to the invention, since the push rod of the master cylinder is connected to the auxiliary arm connected to the pedal arm, the rear end of the master cylinder can be placed inside the passenger compartment, unlike conventional Even if you use a Marsta cylinder of the same length as the Marsta cylinder, the length of the Marsta cylinder that protrudes from the dash panel toward the engine room will be shortened, and the position of the pedal will also be moved forward, so that the front end of the Marsta cylinder will be moved from the front end of the Marsta cylinder to the rear of the pedal. By shortening the distance a1 to the end, the driver's seating position is moved forward, which expands the effective space inside the vehicle, and the protrusion of the master cylinder into the engine room reduces the amount of space in the engine room. Layout restrictions are reduced, allowing the engine to be moved to the rear, the engine room to be made more compact, and the darts panel and strut house to be brought closer together.

In addition, regardless of where the master cylinder is installed, the ``pedal weight'' can be adjusted by changing the installation position of the push rod on the auxiliary arm and the link that connects the auxiliary arm and the pedal arm. It is possible to freely set the height of the cylinder, and the degree of freedom in the mounting position of the master cylinder is greatly increased.

In addition, the suspension angle of the pedal arm can be selected without being affected by the installation position of the master cylinder, increasing the degree of freedom in installing the pedal arm, and setting the angle of the pedal arm to an angle that is easy to step on depending on the seat position. This has the effect of making it possible to

In addition, especially in left-hand drive vehicles in which the master cylinder of the clutch pedal protrudes to the rear of the strut in the engine room, this is an effective means for making the engine room more compact and arranging the engine at the rear.

[Brief explanation of drawings]

FIG. 1 is a side view showing a hanging pedal for an automobile which is an embodiment of the present invention, and FIGS. 2 and 3 are side views showing a conventional hanging pedal for an automobile. 1... Pedal arm, 4... Pedal, 6... Push rod, 7... Master cylinder, 8... Auxiliary arm, 10... Link.

Claims (1)

[Scope of utility model registration request] A pedal arm whose upper end is pivotably attached to the vehicle body, a pedal provided at the lower end of the pedal arm, a push rod that slides when the pedal arm swings due to the force applied to the pedal, and and a master cylinder fixed to the vehicle body. A hanging pedal for an automobile, characterized in that the push rod is connected to the pedal arm, and an auxiliary arm is connected to the pedal arm via a link.