JPS6317691Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an intake pipe device for a tilt-type cab vehicle.

Conventionally, as shown in FIGS. 1 and 2, in a vehicle having a cab 6 tiltably supported by a pin 4 on a chassis frame 2, when a synorkel type intake pipe device is adopted, the cab 6 is When the cab 6 is in a non-tilted state, a frame-side intake pipe supported by the frame 2 is attached to the lower end of the cab-side intake pipe 10 which is supported by the cab 6 and has an air intake nozzle 8 at the upper end in order to tilt the cab 6. There is one in which a rubber boot 14 is attached to the upper end of the rubber boot 12 in pressure contact. Conventionally, the boot 14 was attached to the cab-side intake pipe 10 by fitting the upper end of the boot 14 into the lower end flange 16 of the cab-side intake pipe 10, as shown in FIG.

Therefore, the flange 16 of the cab side intake pipe 10
There was a risk that rainwater or the like would enter through the gap between the engine and the boot 14, causing the engine to malfunction.

The present invention was devised in view of the above, and includes a cab-side intake pipe that is supported by a cab that is tiltably supported on a chassis frame and has a rubber boot at its lower end; a frame-side intake pipe whose upper end abuts the lower end of the boot when the boot is in a non-tilted state;
The boot is configured to move together with the cab side intake pipe when the cab is tilted, and the upper end of the boot is fitted onto the outer periphery of the lower end of the cab side intake pipe, A bead is formed at the upper end of the upper end of the boot at the lower end of the tube, and is protruded radially outward and has an outwardly downwardly inclined surface, and at the upper end of the boot is formed an outwardly downwardly inclined surface that is substantially continuous with the inclined surface of the beat. The gist of this invention is an intake pipe device for a tilt-type cab vehicle, which is characterized by having an inclined surface formed thereon. One embodiment will be described in detail below with reference to FIG. Note that parts that are substantially the same as those of the conventional device described above are designated by the same reference numerals as used above, and detailed description thereof will be omitted.

In this embodiment, the rubber boot 14 is fitted around the outer periphery of the lower end of the cab-side intake pipe 10 as in the conventional case, and furthermore, the rubber boot 14 is fitted to the outer periphery of the lower end of the cab-side intake pipe 10, and furthermore, the rubber boot 14 is fitted to the upper end of the boot 14 at the lower end of the cab-side intake pipe 10. A bead 18 is formed which projects outward in the radial direction and has an outwardly downwardly sloped surface 18a. Furthermore, an outwardly descending inclined surface 14a that is continuous with the inclined surface 18a of the beat 18 is formed at the upper end of the boot 14.

According to the above configuration, rainwater that has fallen while adhering to the outer peripheral surface of the cab-side intake pipe 10 is transferred to the intake pipe 10 and the boot 14 by the slope 18a of the beat 18 and further by the slope 14a of the boot 14. The effect is that the amount of rainwater that enters into the boot 14 through the gap between the intake pipe 10 and the boot 14 is significantly reduced compared to the conventional device described above. play. Moreover, since the inclined surfaces 18a and 14a for guiding rainwater that has fallen while adhering to the outer peripheral surface of the intake pipe 10 to the outside are formed integrally with the bead 18 of the intake pipe 10 and the boot 14, respectively, it is extremely This has the effect of being able to be implemented at low cost.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the entire conventional device, FIG. 2 is an enlarged sectional view of the main part of FIG. 1, and FIG. 3 is an enlarged sectional view of the main part showing an embodiment of the present invention. 2... Frame, 6... Cab, 10... Cab side intake pipe, 12... Frame side intake pipe, 14... Boot,
18...Bead.

Claims (1)

[Scope of utility model registration request] a cab-side intake pipe that is supported by a cab that is tiltably pivoted to the chassis frame and has a rubber boot at its lower end; and a frame-side intake pipe whose upper end abuts the frame-side intake pipe, and the boot is configured to move together with the cab-side intake pipe when the cab is tilted, wherein the upper end of the boot contacts the cab-side intake pipe. Fitted on the outer periphery of the lower end of the pipe,
A bead is formed at the upper end of the upper end of the boot at the lower end of the intake pipe on the cab side, and is protruded outward in the radial direction and has a downwardly sloping surface, and the upper end of the boot is formed with a bead that is approximately parallel to the sloped surface of the bead. An intake pipe device for a tilt-type cab vehicle, characterized in that a continuous downward slope is formed.