JP2550349Y2 - Amphibious vehicle suspension - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for a support in an amphibian suspension system.

[0002]

2. Description of the Related Art Conventionally, in an amphibious vehicle, in order to sail at sea, an elastic boot material is provided between a suspension cylinder supporting wheels and a vehicle body to perform waterproofing, and oil from a seal portion and a support portion of the suspension cylinder is provided. In addition to preventing leakage, measures were taken to prevent rust on the support.

[0003]

However, according to the above construction, the elastic boot material has low reliability and durability in terms of durability and weather resistance when traveling for a relatively long time at sea. Because it is located near the wheels, it could be damaged, making it less than perfect as an amphibious structure.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide an amphibious vehicle suspension system which is sufficiently reliable against breakage of the elastic boot material and inundation during relatively long marine navigation. I do.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a suspension system for an amphibious vehicle according to the present invention swingably supports an upper end portion of a suspension cylinder in a suspension system support chamber formed in a vehicle body. A support member, a through hole through which a suspension cylinder is loosely fitted in a bottom plate of the suspension device support chamber, and an elastic boot material for blocking and waterproofing between the through hole and the suspension cylinder; Shut off the support room from outside and inside the vehicle
It has a waterproof structure for waterproofing.

[0006]

According to the above construction, the elastic boot material and the suspension device support chamber form a double waterproof structure, so that even if the elastic boot material is damaged and is flooded, the vehicle is held in the suspension device support room. Water infiltration into the body can be stopped.
Also, oil leakage from the suspension cylinder support section and the like can be prevented from flowing to the sea by the suspension device support chamber, and rust prevention measures can be taken sufficiently.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an amphibian according to the present invention will be described below with reference to the drawings. As shown in FIG. 6, a pair of right and left running front wheels 2 and running rear wheels 3 driven by an engine are disposed in front and rear portions of the vehicle body 1 in tire boxes 4 and 5, respectively. Is provided with a propulsion screw 6 for navigation.

As shown in detail in FIG. 1, the suspension devices 9 for the front wheels 2 and the rear wheels 3 are respectively provided in suspension device support chambers 7, 8 provided on the vehicle body 1 above the tire boxes 4, 5. The upper end of the suspension cylinder 10 is swingably supported, and the lower end of the suspension cylinder 10 is connected to a gear case 11 containing a final reduction gear and a brake. The gear case 11 includes a drive shaft 1 and an output shaft 13a of a differential device 13 in which an axle shaft 12 is disposed at the center of the vehicle body 1.
4 and a universal joint 15, and connected to a differential case 13 via a lower arm 16 that is swingable in a vertical direction to guide up and down movement. Wheel discs 18 of the front wheels 2 and the rear wheels 3 are fixed to a wheel hub 17 protruding from the gear case 11 and driven by the final reduction gear.

The suspension device support chambers 7 and 8 are formed in a rectangular box shape, and a support bracket 22 is fixed to a support member 21 provided at a middle portion in a horizontal direction.
2, a connecting portion 10a at the upper end of the suspension cylinder 10 is rotatably supported via a support pin 23 in the front-rear direction. The suspension device support chambers 7 and 8 are formed in a waterproof structure that is shut off from the outside and the inside of the vehicle body 1.

That is, the plate members constituting the suspension device support chambers 7 and 8 are stopped by a continuous welded portion, and the suspension cylinder 10 has a through hole for loose fitting formed in the bottom plate 24 of the suspension device support chambers 7 and 8. The opening 25 for maintenance has a waterproof structure against the outside.

In the through hole 25, a cylindrical boot mounting member 27 is fixed around the through hole 25 on the outer surface of the bottom plate 24, and an annular elastic boot is mounted around the boot mounting member 27 and the suspension cylinder 10. The material 28 is attached, and the through-hole 25 is waterproofed.

At the opening 26, a hatch attaching member 29 is projected and fixed around the opening 26 on the outer surface of the bottom plate 24. As shown in detail in FIG.
Is formed with a female screw hole 30 for receiving a fixing bolt 34 therein. Then, the fixing bolt 34 attached to the female screw hole 30
Is inserted into the sealing material 31 covering the opening 26 and the bolt hole 33 formed in the maintenance hatch 32 to tighten the fixing nut 35, thereby sealing the opening 26. Thus, in the opening 26, the female screw hole 30 for mounting the fixing bolt 34 is formed by the hatch mounting member 29.
And the sealing material 31 is interposed between the hatch mounting member 29 and the maintenance hatch 32 so as not to penetrate into the suspension device support chambers 7 and 8. Can be reliably waterproofed, and intrusion of external seawater or the like can be prevented.

As shown in FIGS. 4 and 5, an opening 42 is formed in the side plate 41 of the suspension device supporting chambers 7, 8, and the opening 42 is also formed in a waterproof structure.
That is, around the opening hole 42 on the outer surface of these side plates 41,
A cover mounting member 44 is protruded and fixed, and a female screw hole 45 for receiving a fixing bolt 48 is formed in the cover mounting member 44. Then, the fixing bolt 48 is inserted into the bolt hole 47, the lid 43 is attached to the opening 42 via the sealing material 46, and the fixing nut 49 attached to the fixing bolt 48 is tightened, so that the lid 43 is opened. 42 to seal the opening 42.

According to the above embodiment, the suspension device support chamber 7,
The suspension cylinder 10 penetrating through the bottom plate 24 and the through hole 25 are provided with an elastic boot material 28 for waterproofing. Due to the heavy waterproof structure, even if oil leaks from the support portion of the suspension cylinder 10, it does not leak to the outside, and even if the elastic boot material 28 is damaged, water is not leaked to the suspension device support chamber 7. , 8 to prevent water from entering the vehicle body 11.

[0015]

As described above, according to the present invention, a double waterproof structure can be formed by the elastic boot material and the suspension structure supporting chamber having the waterproof structure, and the elastic boot material is damaged and is flooded. Even if there is, water can be prevented from entering the vehicle body by the suspension device support room. Also, oil leakage from the suspension cylinder support section and the like can be prevented from flowing to the sea by the suspension device support chamber, and rust prevention measures can be taken sufficiently.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a suspension device according to the present invention.

FIG. 2 is a sectional view taken along line AA shown in FIG.

FIG. 3 is an enlarged sectional view of a portion B shown in FIG.

FIG. 4 is a sectional view taken along the line CC shown in FIG. 1;

FIG. 5 is an enlarged sectional view of a D part shown in FIG.

FIG. 6 is a schematic side view of an amphibian having the suspension device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Front wheel 3 Rear wheel 7,8 Suspension device support room 9 Suspension device 10 Suspension cylinder 11 Gear case 22 Support bracket 23 Support pin 24 Bottom plate 25 Through hole 26 Opening 27 Boot mounting member 28 Elastic boot material 29 Hatch mounting member 30 Female screw Hole 31 Seal material 32 Maintenance hatch 42 Opening hole 43 Lid

Claims (1)

(57) [Scope of request for utility model registration] 1. A suspension device support chamber formed in a vehicle body,
A support member for swingably supporting the upper end of the suspension cylinder is provided, and a through hole through which the suspension cylinder is loosely fitted is formed in a bottom plate of the suspension device support chamber,
An elastic boot material for waterproofing by blocking between the through hole and the suspension cylinder is provided, and a waterproof structure for waterproofing by blocking the suspension device support chamber from the outside and the vehicle body is provided. Suspension system for amphibious vehicles.