JPH0326018Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for attaching a vehicle air cleaner to a vehicle body, and particularly to an air cleaner attaching apparatus disposed under the floor of a vehicle cabin.

Conventionally, a cab-over type vehicle equipped with a cabin has an engine room under the floor of the cabin (hereinafter simply referred to as cab), in which various accessory devices are housed in addition to the engine body. Incidentally, as shown in FIGS. 1 and 2, the air cleaner 1 is installed in a corner space of an engine room 2, and is bolted to a side frame (not shown) or a front wheel house surrounding the air cleaner 1. In this type of air cleaner mounting device, when the side frame and front wheel house are separate parts, the split parts of the mounting device are distributed and attached to these parts, and these side frames and front wheel house are attached to the vehicle. When assembled, it is placed in a position where it can be used as an air cleaner mounting device. However, when vehicle assembly and welding operations are performed sequentially, the result is a weld assembly accuracy error that is the sum of errors for each unit welding operation. For this reason, when installing the air cleaner, a misalignment occurs between each tightening screw hole on the mounting device side and a hole in the stay, which is a member to be tightened on the air cleaner side, causing problems in bolt tightening work.

An object of the present invention is to provide an air cleaner mounting device that can absorb errors in weld assembly precision even if they occur.

The air cleaner mounting device according to the present invention includes a locking stay fixed to one side of the air cleaner case installed in the engine room, an upper tightening stay and a lower tightening stay fixed to the upper and lower sides of the other side of the case, and A hook piece with a U-shaped cross section that is attached to the body frame and can engage the locking stay; a first tightening screw that is attached to the body frame and fixes the lower tightening stay by screwing a bolt; a receiving means, a second tightening screw receiving means attached to a cabin forming member of the vehicle connected to the body frame and fixing the upper tightening stay by screwing a bolt;
At least one of the two tightening screw receiving means is characterized in that it includes a nut member and a retainer that accommodates the nut member so that the nut member cannot be rotated but is movable by a predetermined amount at the tightening position.

The present invention will be described below with reference to the accompanying drawings. Third
The figure shows an air cleaner mounting device as an embodiment of the present invention. This mounting device is installed on a cab-over vehicle similar to that shown in FIGS. 1 and 2. The cab 3 forms an engine room 5 below the cab floor 4, and an engine, an air cleaner 6, etc. (not shown) are housed in this engine room. An opening 7 is formed in the cab floor 4 and is closed by a lid member (not shown). The engine room 5 is surrounded by the inner wall surface 301 of the cab 3,
A pair of side frames 8 (only one is shown) that are long in the longitudinal direction of the vehicle are arranged on the center side, and a side frame cover 801 as an upper wall member of each side frame 8 has a front wheel house (as a cabin forming member). (hereinafter simply referred to as wheel house)
The inner parts of 9 are placed and welded together. The vehicle side end of this wheel house is welded to the inner wall surface 301. As shown in FIG. 4, a nut 11 having a screw hole 10 as a first tightening screw receiving means is welded to a side frame cover 801 at a predetermined position, and a hook piece 12 is further welded to a predetermined position. Ru. Note that the air cleaner 6 placed on the side frame cover 801 is attached to this hook piece 12.
A locking stay 13 extending from the bottom wall 601 can be engaged, and a bolt 15 for tightening a lower tightening stay 14 extending from the bottom wall 601 can be screwed into the screw hole 10. On the other hand, as shown in FIGS. 4 and 6, a protrusion 18 to which a retainer 17 as a second tightening screw receiving means is attached is welded to a predetermined position of the wheel house 9. The nut 16 is housed inside the retainer 17 so as to be unrotatable but movable by a predetermined amount. An upper tightening stay 1 extending from the side wall 602 of the air cleaner 6 is attached to the nut 16 inside the retainer.
9 can be screwed together with the bolt 20. The air cleaner 6 has a suction port (not shown) and a discharge port 603 (not shown), and the discharge port 603 supplies fresh air to the engine via a duct (not shown).

In such a vehicle, the cab 3 side is first assembled in sequence on a welding assembly line. Then, the vehicle side end of the wheel house 9 is welded to a predetermined position on the inner wall surface 301 of the cab 3. Thereafter, the cab 3 is placed at a predetermined position on the side frame 8 to which the side frame cover 801 has been welded, and the inner side of the wheel house 9 is welded to the side frame cover 801. After this, other welding parts are welded and the welding assembly of the vehicle body is completed, and furthermore,
The main parts of the vehicle are completed through predetermined steps.

Air cleaner 6 is installed on the vehicle assembled in this way.
When installing the air cleaner 6, enter the air cleaner 6 through the opening 7, first engage the locking stay 13 with the hook piece 12, and then tighten the lower tightening stay 14 into the screw hole 10 with the bolt 15. After that, the upper tightening stay 19 on the projection piece 18 is attached to the retainer 17 by the bolt 20.
The inner nut 16 is tightened. At this time, the nut 16 can be moved by a predetermined amount within the retainer 14 to a position where the bolt 20 can be most easily screwed, and the upper tightening stay 19 can be tightened and fixed to the projecting piece 18 in cooperation with the bolt 20.

As described above, the air cleaner mounting device according to the present invention allows the nut 16 to move within the retainer 14.
This action allows the screw holes 10 on the side frame cover 801 and the nuts 16 on the wheel house 9 to
Even if the relative position of the bolt 20 deviates due to an error in weld assembly precision, this can be absorbed and the bolt 20 can be easily tightened. In particular, since the tightening work has to be done from above the opening 7, it has been very difficult to do so in the past.
By moving the bolt 6, the workability of tightening the bolt 20 can be improved.

Although the wheel house 9 has been described as the cabin forming member, it may also be the inner wall surface 301.
Furthermore, although the nut 11 has been described as the first tightening screw receiving means, instead of this, the nut 16 housed in the retainer may be used as both the first and second tightening screw receiving means.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of a cab-over type vehicle, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a schematic perspective view of an air cleaner mounting device as an embodiment of the present invention.
Figure 4 is a sectional view of the main parts of the mounting device in Figure 3, Figure 5 is a plan view of the main parts of the mounting device in Figure 3, and Figure 6 is a cross-sectional view of the main parts of the mounting device in Figure 3.
Each figure shows a sectional view of a main part of a retainer used in the mounting device. 8... Side frame, 801... Side frame cover, 9... Wheel house, 10... Screw hole, 11... Nut, 14... Lower tightening stay,
16...Natsuto, 17...Retainer.

Claims (1)

[Scope of utility model registration request] A locking stay fixed to one side of the air cleaner case installed in the engine room, an upper tightening stay and a lower tightening stay fixed to the top and bottom of the other side of the case, and a locking stay attached to the body frame of the vehicle and the above-mentioned locking stay. a hook piece having a U-shaped cross section that can engage the stop stay; a first tightening screw receiving means that is attached to the body frame and fixes the lower tightening stay by screwing a bolt; and a hook piece that is connected to the body frame; A second tightening screw receiving means is attached to the cabin forming member of the vehicle and fixing the upper tightening stay by screwing a bolt, and at least one of the two tightening screw receiving means is attached to a nut member. The same nut member cannot be rotated,
An air cleaner mounting device comprising: a retainer that accommodates the retainer so that the tightening position can be moved by a predetermined amount.