JP2555103Y2 - Truck cab structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truck cab structure having an improved drainage structure for draining rainwater or the like that has entered side roof rails provided on both sides of a cab roof panel.

[0002]

2. Description of the Related Art As shown in FIG. 5, a drip channel in a cab of a truck is provided with a drip channel d having a U-shaped cross section at an upper portion of a side roof rail c composed of a side roof rail inner a and a side roof rail outer b. The side edge of the roof panel e of the drip channel d is spot-welded.

[0003] Drip channels d are provided on both sides of the cab in the front-rear direction, and rainwater flows inside the drip channels d and is drained from the front side of the cab.

[0004] However, recently, dripless side roof rails in which the drip channels d on both sides of the roof panel are eliminated have been adopted for cabs of trucks. This dripless structure is shown in FIGS.
It is configured as shown in FIG. That is, 1 is a roof panel, and side roof rails 2 are provided on both sides.

[0005] A hollow backside rail 5 comprising a back inner 3 and a back outer 4 is provided at the rear side of the side roof rail 2. A hollow header side rail 8 including a header inner 6 and a header outer 7 is provided on the front side.

[0006] The front end of the back side rail 5 and the rear end of the header side rail 8 are connected, and the front end of the header side rail 8 is connected to the front pillar 9. Further, a reinforcing plate 10 is partially provided between the back inner 3 and the back outer 4 of the back side rail 5 and between the header inner 6 and the header outer 7 of the header side rail 8.

Further, bent edges 1a are provided at both side edges of the roof panel 1 so as to be bent downward, and the upper edges of the back outer 4 and the header outer 7 are also bent downward. 4a and 7a are provided.

The bent edges 1a and 4a, 7
a is spot-welded, and concave grooves 11 are formed on both sides of the roof panel 1. A body sealer 12 is applied to watertightly seal the bottom of the concave groove 11, that is, the spot welding between the bent edge 1a and the bent edges 4a and 7a.

In the cab, the roof panel 1
A plurality of mounting holes 13 are formed in the back outer 4 and the head outer 7 in order to mount a roof deck (not shown) on the upper part of the vehicle, and a weld nut 14 is fixed to the reinforcing plate 10 corresponding to the mounting holes 13. ing.

When the roof deck is not mounted, the mounting hole 13 is closed in a watertight manner.
And seal type bolt 1 on weld nut 14
5 is screwed.

[0011]

However, the drip-less structure constructed as described above is not applicable to the roof panel 1.
From the joint between the back inner 3 and the back outer 4 and from the joint between the header inner 6 and the header outer 7 into the inside of the side roof rail 2 from the joint between the back inner 3 and the back outer 4. There is a problem of intrusion.

Therefore, the body sealer 12 is applied twice or three times. However, water leakage is inevitable due to poor application, cracks and the like. The mounting holes 13 provided for mounting the roof deck are sealed by seal-type bolts 15. However, when the roof deck is mounted and a large load is applied, deformation around the mounting holes 13 is likely to occur.

Therefore, even if the mounting hole 13 is closed by the seal type bolt 15 after the roof deck is removed, the watertight sealing cannot be performed completely, and rainwater flows from the mounting hole 13 as indicated by the dotted arrow. There is a problem that it enters the inside of the side roof rail 2. For this reason, rust of the side roof rail 2 was caused.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to prevent the rainwater from smoothly draining and accumulating therein even if the rainwater enters the inside of the side roof rail. An object of the present invention is to provide a cab structure of a truck that can be prevented.

[0015]

According to the present invention, a hollow back side rail comprising a back inner and a back outer is provided on both sides of a roof panel of a cab in order to achieve the above object. A hollow header side rail, which comprises a header inner and a header outer, is connected to the back side rail, and a front end of the header side rail is connected to a front pillar. That a drain ditch with a downward slope was provided.

[0016]

[Function] Water that has entered the space between the back inner and the back outer and between the header inner and the header outer and the water that has entered through the mounting hole for mounting the roof deck are guided to the front of the cab by the drain groove, and the front pillar is formed. Drained from outside.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The same components as those in FIGS.

As shown in FIGS. 1 to 4, a step portion 21 is formed on the inner surface of the back inner 3 constituting the back side rail 5 by projecting a lower side from an upper side toward an inner surface side of the back outer 4. Have been. Similarly, a step portion 22 is formed on the inner surface of the header inner 6 constituting the header side rail 8 by projecting a lower side from an upper side toward an inner surface side of the header outer 7.

The step portion 21 of the back inner 3 and the step portion 22 of the header inner 6 are connected via a connecting portion between the back side rail 5 and the header side rail 8, and have a downward slope toward the front of the cab. A drain groove 23 is formed. The header inner 6 and the header outer 7 are connected to the front pillar 9, and the drain groove 23 communicates with a hollow portion of the front pillar 9.

The rainwater accumulated in the concave groove 11 provided at the joint between the roof panel 1 and the back outer 4 and the header outer 7 flows from the joint between the back inner 3 and the back outer 4 and from the joint between the header inner 6 and the header outer 7. When the rainwater enters the inside of the side roof rail 2, the rainwater flows down along the inner surface of the back inner 3 and the inner surface of the header inner 6, and is guided to the drain groove 23. Drained out of the car.

The mounting holes 13 provided for mounting the roof deck are sealed by seal type bolts 15, but due to deformation around the mounting holes 13, rainwater flows from the gaps between the seal type bolts 15 and the side roof rails. 2, the rainwater flows down the inner surface of the back inner 3 and the inner surface of the header inner 6, and is guided to the drain groove 23, is guided to the front of the cab by the drain groove 23, and passes through the inside of the front pillar 9. Drained out of the vehicle. Therefore, the side roof rail 2
Even if rainwater enters the interior, it is drained without accumulating inside, thereby preventing rusting.

[0022]

As described above, according to the present invention, even if rainwater enters the inside of the side roof rail, the rainwater is smoothly drained by the drain groove provided in the side roof rail. There is an effect that generation of rust can be prevented without accumulating inside.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a part of a cab according to an embodiment of the present invention.

FIG. 2 is a vertical side view of the side roof rail of the embodiment.

FIG. 3 is a side view of the cab of the truck according to the embodiment.

FIG. 4 is a cross-sectional plan view of the front pillar of the embodiment.

FIG. 5 is a vertical side view of a conventional side roof rail.

FIG. 6 is an exploded perspective view of a part of a conventional dripless cab.

FIG. 7 is a vertical side view of a side roof rail of a conventional dripless cab.

[Explanation of symbols]

3 Back inner, 4 Back outer, 5 Buckle side rail, 6 Header inner, 7 Header outer, 8
... header side rail, 9 ... front pillar. 23 ... Drainage ditch.

Claims (1)

(57) [Scope of request for utility model registration] 1. A hollow back side rail comprising a back inner and a back outer is provided on a rear side of both sides of a cab roof panel, and a front side comprises a header inner and a header outer, and is connected to the back side rail. A hollow header side rail is provided, the front end of the header side rail is connected to a front pillar, and a drain groove having a downward slope is provided on the back inner and the header inner toward the front of the cab. The cab structure of the truck to do.