JPH0133409Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting structure for a brake operating device in a cab-over type automobile.

In cab-over type automobiles, the space between the driver's seat and the front panel is very narrow, so as shown in Figure 1, the master cylinder 1 and the master back 2 are directly connected, and the brake pedal 3 is connected directly to the instrument panel 4. If it is installed near the bottom, the tip of the master cylinder 1 will protrude significantly from the front edge of the instrument panel 4 towards the driver's seat, which will not only seriously detract from the aesthetics of the vehicle interior, but also pose a danger to the driver's knees.

Therefore, as shown in FIG. 2, a lower bracket 6 whose lower end is fixed to the floorboard and extends upward along the front panel 5, and an upper bracket 7 which is fixed to the lower surface of the instrument panel 4 and extends downward are provided. 1 is directly connected to the lower bracket 6 and the upper bracket 7, and the brake pedal 3 and the counter lever 8 are pivotally connected to the lower bracket 6.
One end is connected to the operating rod 2' of the master back 2, and the other end is connected to the brake pedal 3 via the link 9, thereby allowing the brake operating devices such as the master cylinder 1 and the master back 2 to be installed in the lower part of the instrument panel 4. A device that accommodates all of the above has been developed (see Utility Model Publication No. 15618, 1973).

However, in the prior art described above, the lower bracket 6 is raised upward along the front panel 5, and the master bag 2, counter lever 8, etc. are positioned near the lower part of the front panel 5. The mounting position of the headlamp 10 is limited to a high position above the lower bracket 6, and the shape of the front panel 5 must also be such that the upper part of the front panel 5 protrudes forward as shown by the solid line in Figure 2. First, there is no freedom in terms of design, and the overall appearance has the disadvantage of giving an unstable appearance.

The present invention allows the headlamp 10 to be installed at a lower position, and the upper part of the front panel 5 can be made into an inclined surface that is almost continuous with the slope of the front window glass, as shown by the dotted line in Figure 2, which greatly increases the degree of freedom in terms of design. The present invention aims to provide a mounting structure for a brake operating device that can be improved in terms of performance, and the embodiments shown in FIGS. 3 to 8 will be described below.

In the present invention, as shown in FIG. 3, a pedal box 11 having a substantially U-shaped cross section is fixed at its lower end to the lower part of the front panel 5, and its upper end is attached to a stay 13 near the lower front lower edge of the instrument panel 4. By fixing it to the frame 14 through the front panel 5, the front panel 5 is mounted in an oblique arrangement extending rearward from the lower end of the front panel 5.

A lower part of a bracket 12 whose front end rises diagonally forward is fixed near the middle part of the pedal box 11, and a master bag 2 is attached to the rear surface 12a of the bracket 12 and the upper end of the pedal box 11. By fixing the master cylinder 1 and the master cylinder 1, respectively, the master cylinder 1 and the master bag 2 directly connected thereto are installed at the lower part of the instrument panel 4 in a substantially horizontal arrangement.

Since the rear end of the master cylinder 1 is installed while being housed within the U-shaped pedal box 11, the rear end of the master cylinder 1 is attached to the rear surface of the pedal box 11 as shown in FIGS. 3 and 5. 11
It is covered so that it cannot be seen from the driver's seat.

As shown in FIG. 4, an attachment boss portion 1a functioning as a cylinder is integrally formed at the attachment portion of the master cylinder 1 to the pedal box 11.
The master cylinder 1 is supported on both sides of the pedal box 11 by passing bolts through a through hole provided in the side surface of the pedal box 11 and a through hole in the boss portion 1a.

Furthermore, the outer periphery of the master cylinder 1 and the mounting boss portion 1a are integrally connected by vertical ribs 1b and horizontal ribs 1c, and when the vertical ribs 1b and horizontal ribs 1c break during a vehicle collision, the collision energy is absorbed. It is now capable of absorption.

The central part of the pedal box 11, that is, the bracket 1
A brake pedal 3 is rotatably mounted near the joint with the bracket 12, and a lever 15 is rotatably mounted near the front end of the bracket 12.
The other end of the lever 15 is connected to the operating rod 2' of the master bag 2.

The connecting portion between the brake pedal 3 and the rod 16 is as shown in FIG.

That is, as shown in FIG. 6, the brake pedal 3 and the rod 16 are connected by a pin 17, and the pin through hole 16a of the rod 16 is formed into a long hole, and a bolt 16b is welded to the rear end of the rod 16. The bolt 16b passes through the hole 18a of the yoke 18 supported by the pin 17 with the brake pedal 3 and the rod 15 sandwiched together, and the adjustment nut 19 is attached to the bolt 16b. By screwing in, the longitudinal position is regulated by the yoke 18. By turning the adjusting nut 19, the rod 16 can therefore be adjusted longitudinally relative to the pin 17. 19' is a lock nut.

This bolt 16b faces rearward as shown in Figure 1, and can be easily tightened from the driver's seat by tightening the adjustment nut 19.
The brake pedal stroke can be adjusted by turning.

As shown in FIG. 7, the lever 15 has an arm 15a connected to the operating rod 2' of the master bag 2 and an arm 15b connected to the rod 16, which are offset in the left-right direction and are integrally connected at a boss portion 15c. The operating rod 2' and the rod 16 are prevented from interfering with each other by the offset of both arms 15a and 15b.

In addition to the brake pedal 3, a clutch pedal 20 is rotatably attached to the pedal box 11 as shown in FIG.

According to the present invention configured as described above, the pedal box is provided diagonally from the bottom of the front panel to the bottom of the front edge of the instrument panel, and a bracket is fixedly installed from the approximate center of the pedal box with the front end sloped forward upward. The master back is housed in the bracket and the master cylinder is housed in the upper part of the pedal box.
The levers are rotatably pivoted near the front end of the bracket, the levers are connected to the operating rod of the master back, and the brake pedal and lever are connected by a rod, so that the rear end of the master cylinder is Not only does it not protrude from the front edge of the instrument panel, but even if the vehicle body deforms during a collision, the rear end of the master cylinder is restrained by the pedal box and is prevented from protruding rearward, which is extremely effective in terms of passenger safety.

Also, since a nearly triangular space will be formed between the lower part of the pedal box and the front end of the bracket, this space will be used for the headlamp 10.
The mounting position of the headlamp can be significantly lowered compared to the conventional one shown in Figure 2, and the shape of the upper part of the front panel has been made almost in line with the slope of the front window glass, as shown in Figure 3. It is possible to significantly improve the degree of freedom in terms of design, such as by being able to form an inclined surface that is connected to the surface.

Furthermore, the pedal box, bracket, stay, master cylinder, master back, brake pedal, etc. attached to these can all be handled as a pedal unit assembly as shown in Figure 3, with the lower end of the pedal box attached to the front. The pedal unit assembly can be attached to the vehicle body by tightening and fixing the front end of the stay to the panel and frame with bolts, respectively.
This not only makes it easier to ensure the accuracy of the mounting positions of each member, but also makes assembly work on the outfitting line extremely simple, which can bring about great practical effects.

[Brief explanation of the drawing]

1 and 2 are explanatory side views showing the mounting structure of a conventional brake operating device, respectively, and FIG. 3 is an explanatory side view showing an embodiment of the present invention. Figure 4,
Figures 5 and 6 are cross-sectional views taken along lines A-A, B-B, and CC in Figure 3, and Figures 7 and 8 are views taken in the direction of arrow D and arrow E of Figure 3. It is. 1... Master cylinder, 2... Master back,
3... Brake pedal, 4... Instrument panel, 5... Front panel, 10... Head lamp, 11...
Pedal box, 12... Bracket, 13...
Stay, 14...Frame, 15...Lever, 1
6...Rotsud.

Claims (1)

[Scope of utility model registration request] In a cab-over type automobile, the lower end of a pedal box having a substantially U-shaped cross section is fixed to the lower part of the front panel, the upper end is fixed to the frame near the lower front edge of the instrument panel via a stay, and the front end is fixed near the center of the pedal box. Fixing the lower part of the bracket whose part is inclined forward upward, fixing the master bag to the bracket, fixing the master cylinder directly connected to the master bag to the pedal box while storing it in the pedal box, and fixing the master cylinder to the pedal box. A lever of the brake pedal is rotatably pivoted near the front end of the bracket, one end of the lever is connected to the operating rod of the master bag, and the other end of the lever is connected to the brake pedal via a rod. An automobile brake operating device mounting structure characterized by: