JP2535684Y2 - Hinge cap mounting structure for tilt cab - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a hinge cap of a tilt type cab, and more particularly to a structure capable of improving workability at the time of mounting.

[0002]

2. Description of the Related Art In a cab-over type truck or the like, the engine is located almost immediately below a cab (cab), so that the entire cab is connected to a front hinge to facilitate maintenance and inspection. It is often a tilt type that rotates forward as the center.

[0003] Among such tilt type cabs, there is a floating type cab in which the entire cab is supported on a frame via a suspension mechanism to prevent vibrations during traveling from being directly transmitted to the cab.

FIGS. 3 and 4 schematically show a mounting structure of a floating cab of this type and a conventional hinge cap. Reference numeral 1 denotes a side rail (frame) facing the front and rear directions on both lower sides of a vehicle body. Is a cab frame fixed to the lower part of the floor panel of the cab 3.

At the front end of the cab frame 2, a pair of left and right parts whose lower ends are formed in a downward semi-cylindrical shape (the following members are provided symmetrically on both sides of the vehicle body, so (Only one is shown) is fixed by a plurality of bolts 5.

Reference numeral 6 denotes a hinge cap having an upper semi-cylindrical upper portion, and a collar 7 and a collar 7 are formed in a holding hole formed between the hinge cap and the lower end surface of the hinge bracket 4 and directed in the left-right (vehicle width) direction. After fitting the elastic bush 8 externally fitted thereto, the two bolts 9, 9 inserted from below the front and rear flange portions 6a of the hinge cap 6 are screwed toward the hinge bracket 4. Thus, the bush 8 is held between the hinge bracket 4 and the hinge cap 6 so as to be strongly pressed in the diameter reducing direction.

Reference numeral 10 denotes a generally inverted L-shaped connecting arm. The rear end of the connecting arm is pivotally attached to the upper end of a support plate 11 fixed to the outer surface of the side rail 1 so as to face upward. The front end portion is connected to the outer surfaces of the collar 7 and the bush 8 by a bolt 12 extending in the left-right direction that passes through the center of the collar 7.

[0008] A compression coil spring 13 is provided between the upper surface of the side rail 1 and a substantially intermediate portion of the connecting arm 10.
This supports the load on the front side of the cab 3 and absorbs the vibration on the frame side to prevent the vibration from being directly transmitted to the cab 3 side.

Reference numeral 14 denotes a shock absorber provided between the side rail 1 and the connecting arm 10;
Is a cylinder for tilt provided between the side rail 1 and the cab frame 2, and 16 is a compression cylinder provided between the side rail 1 and the rear end of the cab frame 2 for supporting the rear side of the cab 3. The coil spring 17 is a hinge cap 6
And a stopper fixed on the side rail 1 opposite to the side rail.

The connecting arm 10, the front and rear compression coil springs 13, 16 and the shock absorber 1
4 and the like constitute a suspension mechanism.

[0011]

In the conventional hinge cap mounting structure described above, when the hinge cap 6 is fixed to the hinge bracket 4, two bolts 9, 9 are attached to the hinge bracket 4 from directly below the hinge cap 6. In particular, when tightening the rear bolt 9, the suspension mechanism such as the side rail 1 and the compression coil spring 13 hinders the use of an automatic tightening machine such as an impact wrench. And the workability and work efficiency were reduced.

The present invention has been made to solve the above-mentioned problems, and the work efficiency at the time of assembling is improved by making it possible to perform the mounting work on the rear side of the hinge cap from the side of the vehicle body. It is an object of the present invention to provide a tilt type cab hinge cap mounting structure that can be used.

[0013]

In order to achieve the above object, the present invention provides a mounting structure for attaching a hinge cap via a bush to lower ends of a pair of left and right hinge brackets fixed to a lower front end of a cab frame. A pair of holding pieces opposing each other at a required distance in the left-right direction at the rear lower end face of the hinge bracket, and a rear end of the hinge cap is provided in a gap between the two holding pieces. The front end of the hinge cap is bolted to the lower surface of the front end of the hinge bracket, while the parts are fitted together and pivotally connected by a support shaft extending in the left-right direction that penetrates both holding pieces.

[0014]

The rear end of the hinge cap is connected to the lower end of the rear of the hinge bracket with a support shaft pointing in the left-right direction.
Since the hinge cap is pivotally mounted between the pair of holding pieces, the mounting operation on the rear side of the hinge cap can be performed from the side of the vehicle body without being hindered by the side rails or the like.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

The same members as those in the conventional example shown in FIGS. 3 and 4 are denoted by the same reference numerals, and a detailed description thereof will be omitted.

In FIGS. 1 and 2, the lower end surface of the front side of the hinge bracket 4 is formed to be slightly upwardly inclined, and the lower portion of the rear end is provided with a left and right (vehicle width) as shown in FIG. And a pair of holding pieces 4a, 4a, which are opposed to each other by a required distance in the direction (1) and protrude below an extension of the lower end surface on the front side.

The front flange portion 6 of the hinge cap 6
a is inclined upward so as to be substantially parallel to and opposed to the lower end surface on the front side of the hinge bracket 4, and the flange portion 6a is hinged by a bolt 9 inserted obliquely upward from below. It is fixed to the lower surface of the front end of the bracket 4.

The rear side of the hinge cap 6 is loosely fitted in the gap between the two holding pieces 4a, 4a, and is formed at the protruding end of the pin 18 which passes through both the holding pieces 4a and the hinge cap 6 and faces in the left-right direction. Nut 1 from outside
9 is rotatably pivoted by screwing it (see FIG. 2).

The front end of the connecting arm 10 bypasses the fastening portion of the nut 19 so that the hinge bracket 4 and the hinge cap 6 can be connected in the same manner as in the prior art.
A bolt 12 is attached to the outer surface of the bush 8 fitted and held therebetween.
Are connected by

In the embodiment described above, the attachment of the hinge cap 6 on the rear side is not hindered by the suspension mechanism such as the side rail 1 or the compression coil spring 13 and the automatic tightening machine or the like is mounted from the side of the vehicle body. It can be performed very easily and in a short time.

Since the bolt 9 for fixing the front side of the hinge cap 6 is inclined obliquely upward, the side rail 1 does not hinder the tightening.

Since the rear side of the hinge cap 6 is pivotally connected to the hinge bracket 4, the rear side of the hinge cap 6 is pivotally connected to the hinge bracket 4 first.
Simplifies positioning and mounting on the front side.

The present invention can be applied to a tilt type cab in which a hinge portion is directly supported on a side rail 1 via a bracket, in addition to the above-mentioned floating type cab.

[0025]

According to the present invention, since the rear portion of the hinge cap can be attached to the hinge bracket from the outside of the vehicle body, even if there is an obstacle below the hinge cap, the attachment can be extremely easily performed. Can be performed, work efficiency is improved, and productivity is increased.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a floating cab to which one embodiment of the present invention is applied.

FIG. 2 is an enlarged vertical cross-sectional view along the line AA in FIG.

FIG. 3 is a side view of a main part of a floating cab provided with a conventional hinge cap mounting structure.

FIG. 4 is an enlarged vertical cross-sectional view along the line BB in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side rail 2 Cab frame 3 Cab 4 Hinge bracket 4a Holding piece 5 Bolt 6 Hinge cap 6a Flange part 7 Collar 8 Bush 9 Bolt 10 Connecting arm 11 Support plate 12 Bolt 13 Compression coil spring 14 Shock absorber 15 Tilt cylinder 16 Compression coil Spring 17 Stopper 18 Pin (support shaft) 18a Male thread 19 Nut

Claims (1)

(57) [Scope of request for utility model registration] 1. A mounting structure for attaching a hinge cap via a bush to lower ends of a pair of left and right hinge brackets fixed to a lower portion of a front end of a cab frame. A pair of holding pieces facing each other are separated downward by a predetermined distance, and a rear end of the hinge cap is fitted in a gap between the two holding pieces,
A hinge cap mounting structure for a tilt-type cab, wherein the hinge cap is pivotally attached to a left and right support shaft passing through both holding pieces and a front end of the hinge cap is bolted to a lower surface of a front end of the hinge bracket.