JPS5930739Y2 - Air cleaner intake duct installation device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an air cleaner intake duct mounting device that improves the mounting structure of the intake duct that guides air to the air cleaner.

Recently, due to the effective use of narrow spaces inside the vehicle body,
Air cleaners are often installed in narrow spaces surrounded by body panels.

However, since such a hole is only large enough to insert one hand, it is actually quite difficult to connect the intake duct to the intake port of the air cleaner.

That is, in the past, as shown in FIG. An air intake duct 5 made of resin is arranged, one end of which is fitted into the air intake port 3, and the other end of which is fitted into the air intake pipe 4 for retention.

If the wrap length l between the intake pipe 4 and the intake duct 5 is short, it may easily come off due to negative suction pressure of the air cleaner 2 or vibrations of the vehicle body, so it is necessary to attach a clamp 6 to that part. It is said that

However, the surrounding space in which the intake duct 5 is arranged is quite narrow as mentioned above, and therefore it is quite difficult to attach the clamp 6, and if the wrap allowance is long, the work space is narrowed by the wrap allowance. However, there was a drawback that work efficiency was reduced.

Furthermore, in the conventional model, the intake pipe 4 had to be attached to the body panel 1 in advance at the point where the intake duct 5 was formed, which resulted in an increase in the number of parts and increased costs.

This idea was designed to allow the intake duct to be installed reliably and easily even in a narrow work space, without the need for clamps, and without having to pre-install the intake pipe on the body panel. An object of the present invention is to provide a mounting device for an air cleaner intake duct.

An embodiment of this invention will be described below with reference to the drawings.

In the figure, 11 indicates the top, front, and side body panels 12,
13. This air cleaner is disposed in a space 15 surrounded by 14, and the air intake port 1 of this air cleaner 11
6 is equipped with an intake duct 17.

The upper body panel 12 is provided with a working hole 18 that is large enough to allow insertion of one hand, and the front body panel 13 is provided with a through hole 21 facing the air intake port 16.

The intake duct 17 is made of elastic synthetic resin, and has a flange-shaped locking portion 19 integrally protruding from the outer periphery of the intermediate portion in the longitudinal direction, and a peripheral surface extending from the locking portion 19 to one end side. A bellows processing part 20 which can be freely expanded and contracted is provided.

This intake duct 17 has one end connected to the air cleaner 11.
The locking part 19 engages with the periphery of the through hole 21, and the other end is attached to the air inlet part 16 with the other end leading out from the through hole 21.

Note that 22.22 are stopper pieces protruding from the side surface of the intake port 16, and one end of the intake duct 17 is locked to these stopper pieces 22.22.

The intake duct 17 installed in this way is inserted into the working hole 18.
This work is performed through the following, and the procedure will be explained below.

First, hold both ends of the intake duct 17 between your fingers and shrink them due to the elastic deformation of the bellows-processed part 20. In this state, insert your fingers into the working hole 18 to connect the intake duct 17 to the intake port 16 and the through hole. 21.

Then, the grip on the intake duct 17 is released to release it.

With this release, the intake duct 17 expands due to the elastic restoring force of the bellows processed part 20, fits one end into the intake port 16, engages the locking part 19 with the periphery of the through hole 21, and fixes the other end. It is automatically fixed in a state where it is led out from the through hole 21, thereby completing the device work of the intake duct 17.

As shown in FIG. 4, the through hole 21 with which the locking portion 19 of the intake duct 17 engages has its peripheral edge bent into a concave stepped shape, and the locking portion is formed on the flat surface 23a of the concave stepped portion 23. 19 are colliding.

The inner peripheral edge of the through hole 21 is separated from the peripheral surface of the intake duct 17 by a gap of 11, and the outer peripheral edge of the locking part 19 is separated from the inner surface of the recessed step 23 by a gap of 12.

The gap 12 is an allowance that takes into account dimensional errors in the accuracy of parts and dimensional errors during assembly, and a relationship of 11>12 is set between the gap 12 and the gap 11, which prevents the air intake duct 17 from moving due to vehicle body vibration, etc. Even if it moves carelessly, its circumferential surface will not come into contact with the inner circumferential edge of the sharp-shaped through hole 21.
This makes it possible to reliably prevent unexpected damage to the intake duct 17.

FIG. 5 shows a modified example of the intake duct. As shown in the figure, the intake duct N7a has a locking part 19a formed on the outer periphery of the intermediate part, and has a bellows-processed part extending over both ends thereof, that is, over the entire length. 20a.

20a, and this intake duct 17a has the advantage that its overall length can be further reduced to a shorter length, making it easier to install.

As explained above, according to this invention, the intake duct can be reduced to a short size through the bellows processing part, so it can be easily located at the desired installation location even in a narrow space. By simply removing the suction duct from the intake duct at that position, the elastic restoring force of the bellows-processed portion allows it to be automatically installed in a predetermined state.

After this installation, the restoring force of the bellows-processed part acts on the intake duct at all times, and a part of the duct penetrates the through hole in the body panel, so the installation state is secure, and therefore the clamp cannot be used as before. In addition, there is no need to install an intake pipe on the body panel in advance, which reduces the number of parts, further improving assembly efficiency and lowering costs. be.

In addition, the expansion and contraction of the bellows-processed portion has the advantage that even if there is a dimensional error in the length of the intake duct or the attachment site, it can be easily absorbed.

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view showing the prior art, Figs. 2 to 4 show an embodiment of this invention, Fig. 2 is a perspective view, Fig. 3 is a plan sectional view, and Fig. 4 is a partial view. FIG. 5 is an enlarged cross-sectional view and a plan view showing a modified example of the intake duct. 11...Air cleaner, 12,13.14.
...Body panel, 16...Intake port,
17... Intake duct, 19... Locking part, 20... Bellows processed part, 21... Through hole.

Claims (1)

[Scope of utility model registration request] In the case where a synthetic resin intake duct is connected to the intake port of the air cleaner and is led out from a through hole in the body panel, the intake duct has a locking part on the outer periphery of the intermediate part, and at least a connection between the locking part and the duct. A bellows-processed part is provided on the surface between the bellows-processed part, and by reducing the bellows-processed part, an intake duct is interposed between the above-mentioned intake port part and the through hole, and the elastic restoring force of the bellows-processed part allows the one end to be closed. A mounting device for an air intake duct for an air cleaner, which is fitted into an air intake port, has a locking portion locked to the periphery of a through hole, and has the other end led out from the through hole.