JPS6243849Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a support device for a wind guide duct, so-called a so-called shunorkel type, for an air cleaner in a vehicle, particularly a vehicle having a tail-type driver's cab installed so as to be tiltable with respect to the chassis. .

Conventionally, in a vehicle equipped with this type of air guide duct, the air cleaner body inlet on the chassis side and the air guide duct on the driver's cab side are connected so as to be able to come in and out so as to accommodate the tilting of the driver's cab. Since the air guide duct is only fixed at a predetermined position in the operator's cab, there are certain parts precision, chassis accuracy, and operator cab sheet metal precision between the air cleaner inlet and the connecting ends of the air guide duct. As a result of compounding dimensional errors due to variations in assembly accuracy during bodywork, the positional deviation between the two connecting ends, which causes a decrease in airtightness, is absorbed and the two connecting ends are moved relative to each other. There were technical issues that required additional management and man-hours to ensure positional accuracy.

In view of the above-mentioned problems, the purpose of the present invention is to provide a vehicle-use device that can ease precision control to ensure the accuracy of the relative position between the inlet part of the air cleaner body and the connecting end of the air guide duct, and reduce the number of man-hours. An object of the present invention is to provide a wind guide duct support device for an air cleaner.

Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, 1 is a driver's cab installed to be tiltable forward with respect to the front part of the vehicle chassis, 2 is the roof of the driver's cab 1, and 3
is a rain gutter extending laterally along the lower edge of the roof 2.

Reference numeral 4 denotes an air cleaner body installed below near the center of the chassis, and has an inlet portion 4a extending upward from its front portion.

Reference numeral 5 denotes a connection hose fitted to the upper end of the inlet portion 4a of the air cleaner main body 4, and is formed in a flexible and flexible shape.

Reference numeral 6 denotes a rear surface 1 of the operator's cab 1 for taking in air and introducing it into the inlet portion 4a of the air cleaner body 4.
A wind guide duct installed vertically with respect to a,
Lower support parts 7, 7 each having a mounting hole 8 protrude laterally in the left-right direction near the bottom of the joining edges 6a, 6a, which are formed into a substantially hollow rectangular tube shape and protrude along the longitudinal direction from both sides of the joint edges 6a, 6a. On the other hand, the vicinity of the lower end portion 6b of the air cleaner main body 4 facing the inlet portion 4a is formed into a hollow cylindrical shape.

Reference numeral 9 denotes a connection edge that is fitted in a flange shape to the lower end 6b of the air guide duct 6 and serves as a connection end of the air guide duct 6 to the connection hose 5, and the lower surface 9
a is crimped to the upper end edge 5a of the connecting hose 5 so as to be able to come into contact with and be separated from the inlet portion 4 of the air cleaner main body 4.
a and the air guiding duct 6 are connected via a connecting hose 5 so that air can flow therethrough.

Reference numeral 10 denotes a cover formed in a hollow shape with a downward opening, and is fixed to the air guiding duct 6 at the rear wall portion 10a so as to be able to cover the vicinity of the upper end portion 6c;
The front wall portion 10b and the front surface of the upper end 6c of the air guide duct 6 and the upper end 6c of the air guide duct 6 and the upper inner surface of the cover 10 are spaced apart so that air can be introduced. Furthermore, mounting holes 12, 1 are formed in the protruding edge 10c that protrudes from the upper end.
2 is installed through it.

Reference numeral 13 denotes an upper support bracket that is attached horizontally to the lower surface of the rain gutter 3 of the driver's cab 1 in order to support the upper end 6c of the wind guide duct 6 through the cover 10, and has a substantially horizontal L-shape in vertical section. The vertical portion 13 a has through holes 14 , 14 extending through the vertical portion 13 a facing the mounting hole 12 of the cover 10 .

Reference numerals 15 and 15 are upper buffer pieces that are respectively fitted into the mounting hole 12 of the cover 10 so as to be able to clamp the peripheral edge of the hole 12, and are formed of an elastic material such as rubber into a substantially annular shape. The cover 10 connects to the through hole 1 of the upper support bracket 13 via both upper buffer pieces 15.
The upper support bracket 13 is formed by the upper support bolts 16, 16 which are inserted into the upper buffer piece 4 and loosely fitted into the upper buffer piece 15, and the nuts 17, 17 which are screwed into both upper support bolts 16. It is fastened to.

Reference numerals 18 and 18 are lower buffer pieces fitted into the mounting hole 8 of the lower support portion 7 of the air guide duct 6 so as to clamp the peripheral edge of the hole 8, and are made of an elastic material such as rubber. It is formed almost circularly.

Reference numeral 19 denotes a lower support bracket attached to the rear surface 1b of the driver's cab 1 near the mounting bracket 20 fixed to the lower portion of the rear surface 1a of the driver's cab 1. 19a, 19
a has left and right 1 facing the mounting hole 8 of the wind guide duct 6.
A pair of oblong support holes 21, 21 are provided through the support holes 21, 21. A pair of left and right threaded shafts of a U-shaped lower support bolt 22 are respectively fitted into both support holes 21, and both threaded shafts are fastened to the lower support bracket 19 with nuts 23. The lower buffer pieces 18 are respectively fitted onto both threaded shafts of the lower support bolt 22 and fastened to the threaded shafts by a pair of front and rear nuts 25, 25, respectively. Further, a fitting portion 24 for fitting the folded portion 22a of the lower support bolt 22 is recessed horizontally in the base portion 19b of the lower support bracket 19.

Then, both lower buffer pieces 18 are fitted into both mounting holes 8 of the lower support part 7 of the air guiding duct 6, and the lower support part 7 is attached to the lower support bracket 19 with the lower support bolt 22 and both lower buffer pieces 18. The lower support bolt 22 is supported so that its movement in the longitudinal direction of the support hole 21 can be adjusted, and the screw shaft portion of the lower support bolt 22 can be adjusted in its movement in the axial direction.

Next, the operation and effects of the embodiment having the above configuration will be explained.

Now, in this example, the lower part of the air guide duct 6, which is attached to the driver's cab 1 of the vehicle and installed vertically so as to be able to come into contact with and separate from the inlet portion 4a of the air cleaner main body 4 attached to the chassis, is connected to the driver's cab 1. A U-shaped lower support bracket 19 is attached to the lower outer surface of the bracket and has a pair of oblong support holes 21 therethrough, and a U-shaped lower support bracket 19 has a pair of screw shafts inserted through both support holes 21 respectively. Adjustment of longitudinal movement of the support hole 21 and adjustment of the screw shaft portion are performed through a lower support bolt 22 having a shape of Since it is supported so that its movement in the axial direction can be adjusted, when assembling the air guide duct 6 to the rear surface 1a of the driver's cab 1, the cover 10 is attached to the upper support bracket 13 with both upper support bolts at the upper part of the air guide duct 6. 16 and nuts 17 through both upper buffer pieces 15, while the lower support bolt 22 can be tightened in the support hole 21 with respect to the lower support bracket 19 at the lower part of the air guide duct 6. Adjust the movement in the left and right direction with
5, the lower support part 7 of the air guide duct 6 can be tightened to the lower support bracket 19 via both lower buffer pieces 18 by screwing in the front and rear direction, and the connecting end of the air guide duct 6 and The air guide duct 6 can be installed by reliably and easily matching the opening position of the connecting edge 9 with the opening position of the connecting hose 5, which is the connecting end of the inlet 4a of the air cleaner main body 4.

Therefore, even if the sheet metal accuracy of the chassis and driver's cab 1, the dimensional accuracy of the air guide duct 6, the lower support bracket 19, etc. vary between vehicles, the above-mentioned variations in accuracy are compounded and accumulated. As a result of being able to assemble the air guide duct 6 while absorbing errors, there is an advantage that the accuracy control limit in the production process of related parts can be expanded and accuracy control can be relaxed, and the number of man-hours can be reduced.

Further, since the relative positions of the connecting ends of the air guide duct 6 and the inlet portion 4a of the air cleaner main body 4 can be matched with each other, the airtight performance between the two connecting ends can be significantly improved.

Incidentally, when assembling the air guiding duct 6, errors in the vertical direction can be absorbed by the elasticity of the connecting hose.

Furthermore, even if the opening position of the connection edge 9 and the opening position of the connection hose 5 change relative to each other due to the tilting and return of the operator's cab 1, the connection remains in contact with the upper end edge 5a of the connection hose 5 in a covered manner. Positional displacement can be absorbed by the edge 9.

That is, the present invention provides a method for connecting the lower part of the air guide duct, which is attached to the driver's cab of a vehicle and installed vertically so as to be able to come into contact with and separate from the inlet part of the air cleaner body attached to the chassis, to the outer surface of the lower part of the driver's cab. a U-shaped support bolt having a pair of threaded shaft portions inserted into both of the support holes, respectively; A pair of buffer pieces each fitted and fastened to both screw shafts allows adjustment of movement in the longitudinal direction of the support hole and adjustment of movement of the screw shaft in the axial direction. By doing so, the air guide duct can be accurately installed in the operator's cab by absorbing dimensional errors and assembly errors of related parts, and the control limits of installation accuracy and parts accuracy in the production process can be relaxed. have an effect.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a schematic side view of the entire vehicle, Fig. 2 is an enlarged sectional view of section A in Fig. 1, and Fig. 3 is an enlarged section B of Fig. 1. cross section,
Figure 4 is a sectional view taken along line D-D in Figure 3, and Figure 5 is a cross-sectional view of Figure 1.
FIG. 6 is an enlarged cross-sectional view of section C in the figure, FIG. 6 is a cross-sectional view taken along the line E--E in FIG. 5, and FIG. 7 is a perspective view showing the general shape of the main part. 1... Driver's cab, 4... Air cleaner body, 4a
... Inlet section, 6 ... Wind guide duct, 18 ...
Lower buffer piece, 19... Lower support bracket, 22...
Lower support bolt.

Claims (1)

[Scope of utility model registration request] The lower portion of the air guide duct, which is attached to the driver's cab of the vehicle and is installed vertically so as to be able to come into contact with and separate from the inlet portion of the air cleaner body attached to the chassis, is attached to the outer surface of the lower part of the driver's cab. A support bracket having a pair of horizontally elongated support holes 21 is provided with a U-shaped support bolt having a pair of screw shafts inserted through each of the support holes, and a U-shaped support bolt having a pair of screw shafts inserted through each of the support holes. The screw shaft portion is supported so as to be adjustable in longitudinal movement of the support hole and in the axial direction of the screw shaft through a pair of buffer pieces each fitted and fastened to the support hole. Air guide duct support device for vehicle air cleaners.