JPH0649758U - Mounting device for air cleaner in internal combustion engine - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The intake outlet 9a of the air cleaner 9 is connected to the intake inlet 8a of the throttle body 8 attached to the intake manifold 5 of the internal combustion engine through the flexible pipe 10, A downwardly protruding pin 13 provided at a lower portion
Is detachably inserted into a ring-shaped grommet 15 provided on a bracket 14 extending from the engine so that the receiving seat surface 12 of the root of the pin contacts the upper surface of the grommet, and a mounting piece protruding from the upper portion of the air cleaner. In an air cleaner attachment device in which 16 is fastened to the throttle body side with a bolt 19 via a grommet 18, the attachment work of the air cleaner is facilitated without increasing the length of the flexible pipe. [Structure] The pin is attached to one end surface 10a of the flexible pipe.
While arranging it at a position immediately below or close to a position immediately below one end face, part of the receiving surface at the base of this pin opposite to the flexible pipe with respect to the axis of the pin is partially cut off. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for mounting an air cleaner for an internal combustion engine to an intake manifold in the internal combustion engine.

[0002]

[Prior art]

 The inventor of the present invention, in Japanese Utility Model Laid-Open No. 4-52556, discloses an intake port A'in a throttle body A attached to an intake manifold (not shown) of an internal combustion engine, as shown in FIG. An air cleaner B is connected to an intake outlet B'through a flexible pipe C made of a soft elastic material such as rubber, and a downwardly projecting pin D provided on the lower surface of the air cleaner B is a bracket projecting from an internal combustion engine or the like. While the receiving seat surface D'formed at the base of the pin D is removably inserted into the grommet F provided at the front end of E so that it abuts the upper surface of the grommet F, the air cleaner B causes the throttle body to come in contact with the throttle body. A mounting piece G protruding toward A is fastened to a bracket H mounted on the throttle body A with a bolt J via a grommet I between them. It has proposed a mounting device.

In this mounting device, the air cleaner B is mounted by fitting the flexible pipe C to the intake inlet A ′ of the throttle body A, while the air cleaner B is fitted with the pin D on the lower surface of the bracket E. By rotating the pin D in the direction of the throttle body A while being inserted into the grommet F, the intake outlet B'is inserted into the flexible pipe C and then connected. This is done in the order of fastening the piece F to the bracket H with the bolt J.

[0004]

[Problems to be solved by the device]

 However, in the mounting device according to the above-mentioned prior art, the pin D on the lower surface of the air cleaner B is arranged at a position far away from directly below the one end surface C ′ of the flexible pipe C. When the air cleaner B is rotated about this pin D with the pin D on the lower surface of the air cleaner B being inserted into the grommet F of the bracket E, the intake outlet B ′ of the air cleaner B is shown in FIG. As shown in (1), it is difficult to insert the intake outlet B ′ of the air cleaner B into the flexible pipe C at the same time as the air cleaner B is attached, because it largely disagrees with one end of the flexible pipe C. However, this took a lot of time and labor, and there was a problem that the assemblability was low.

Moreover, in order to enable the intake port B ′ of the air cleaner B to be inserted into the flexible pipe C, the length L of the flexible pipe C must be increased, which leads to an increase in size. There was also the problem of being invited. The present invention aims to provide a mounting device that solves this problem.

[0006]

[Means for Solving the Problems]

 In order to achieve this technical problem, the present invention connects an intake port of an air cleaner to a suction port of a throttle body attached to an intake manifold of an internal combustion engine through a flexible pipe, and connects the intake port of the air cleaner below the intake port. The downward projecting pin provided at the part is detachably attached to the ring-shaped grommet provided on the bracket extending from the internal combustion engine etc. so that the receiving seat surface formed at the base of the pin contacts the upper surface of the grommet. In the air cleaner mounting device, which is formed by bolting a mounting piece that protrudes from the upper part of the air cleaner to the throttle body side through a grommet while inserting, insert the pin directly under one end of the flexible pipe. While arranging it at the part of the pin or a part immediately below one end, And the flexible pipe the axis of the pin out of the portion of the opposite side to the part partial resection constitutes.

[0007]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings of FIGS. In the figure, reference numeral 1 indicates a vehicle body frame of an automobile. In an engine room 2 formed in a front portion of the vehicle body frame 1, an internal combustion engine 3 has a crank axis 4 of the internal combustion engine 3 in a plan view. It is mounted sideways so that it is substantially perpendicular to the direction of travel of the vehicle.

Reference numeral 5 indicates an intake manifold attached to one side surface in the longitudinal direction of the internal combustion engine 1. The intake manifold 5 includes a chamber 6 extending in the direction of a cylinder row in the internal combustion engine, and the chamber 6. And a plurality of intake pipes 7 that connect the cylinders to each other. At one end of the chamber 6, a throttle body 8 having an intake inlet 8a is attached.

Reference numeral 9 indicates an air cleaner having a filter element built-in. An intake outlet 9a of the air cleaner 9 is provided on a flexible pipe 10 made of a soft elastic body fitted to the intake inlet 8a of the throttle body 8. An air intake duct 11 having an air intake port 11a at its tip is connected to the air cleaner 9 by inserting it into one end.

A receiving seat surface 12 is integrally formed on the lower surface of the air cleaner 9, and a pin 13 projecting downward is provided on the receiving seat surface 12, while the internal cleaner 1 is provided with the air cleaner. 9 is fixed to a bracket 14 extending toward the lower part of the bracket 9, and the pin 13 is inserted into the ring-shaped grommet 15 made of a soft elastic material such as rubber and attached to the end of the bracket 14. Insert it detachably so that it touches the upper surface of.

Further, a pair of left and right mounting pieces 16 are integrally formed on the upper portion of the air cleaner 9 so as to extend in the direction of the slot body 8, and both mounting pieces 16 are removed from the throttle body 8. The protruding cleaner 17 is fastened with a bolt 19 through a grommet 18 made of a soft elastic material such as rubber, so that the air cleaner is fastened by the bolt 19 and the pin 13 is inserted into the grommet 15. 9 is configured to be supported.

Then, the pin 13 is arranged at a position directly below the one end face 10 a of the flexible pipe 10 or at a position close to immediately below the one end face 10 a, while at the base of the pin 13. A part of the receiving seat surface 12 opposite to the flexible pipe 10 with respect to the axis of the pin 13 is partially cut off. In this structure, the air cleaner 9 is attached by fitting the flexible pipe 10 to the intake inlet 8a of the throttle body 8, while the air cleaner 9 is attached to the pin 13 on the lower surface of the bracket 14 as shown in FIG. By rotating the pin 13 in the direction of the throttle body 8 while being inserted into the ring-shaped grommet 15, the intake outlet 9a of the pin is inserted into the flexible pipe 10 and connected to both ends. This is done in the order in which the piece 16 is fastened to each of the support valves 17 by the bolts 19.

In this case, even if the pin 13 is arranged at a position directly below the one end face 10a of the flexible pipe 10 or at a position close to immediately below the one end face 10a, the pin 13 As shown in FIG. 5, when the bearing surface 12 at the base portion is formed over the entire circumference of the pin 13, when the air cleaner 9 is moved with the pin 13 as the center, the air cleaner 9 The surface 12 rotates about a point 12a farthest from the one end surface 10a of the flexible pipe 10, and the rotation center of the air cleaner 9 is closer to the one end surface 10a of the flexible pipe 10. Since the distance increases, the discrepancy between the intake outlet 9a of the air cleaner 9 and one end of the flexible pipe 10 increases.

On the other hand, as in the present invention, the pin 13 is arranged at a position directly below the one end face 10a of the flexible pipe 10 or at a position close to immediately below the one end face 10a, When the portion of the receiving surface 12 at the base of the pin 13 opposite to the flexible pipe 10 with respect to the axis of the pin 13 is partially removed, the air cleaner 9 is attached to the pin 13 of the pin 13. By being able to rotate about the axis, the gap between the intake outlet 9a of the air cleaner 9 and one end of the flexible pipe 10 is reduced, so that the intake outlet 9a can be inserted into the flexible pipe 10. The connection can be easily made without increasing the length of the flexible pipe 10.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a view showing a mounted state.

FIG. 5 is a diagram showing a device before the present invention.

FIG. 6 is a diagram showing a conventional example.

[Explanation of symbols]

 1 Body Frame 3 Internal Combustion Engine 5 Intake Manifold 6 Chamber 7 Intake Line 8 Throttle Body 8a Throttle Body Inlet Inlet 9 Air Cleaner 9a Air Cleaner Inlet Outlet 10 Flexible Pipe 10a Flexible Pipe One End 12 Receptacle 13 Pin 14 Bracket 15 Ring-shaped grommet 16 Mounting piece 17 Support piece 18 Grommet 19 Bolt

Claims (1)

[Scope of utility model registration request] 1. An intake port of an air cleaner is connected to an intake port of a throttle body attached to an intake manifold of an internal combustion engine through a flexible pipe, and a downward projecting portion is provided in a part of the air cleaner below the intake port. The pin is removably inserted into a ring-shaped grommet provided on a bracket extending from an internal combustion engine or the like so that a receiving seat surface formed at the root of the pin comes into contact with the upper surface of the grommet, while the upper part of the air cleaner is attached. In a device for mounting an air cleaner, in which a mounting piece projecting from a bolt is fastened to the throttle body side via a grommet, the pin is located immediately below the one end face of the flexible pipe or immediately below the one end face. The pin seating surface of the pin at the base of the pin. Opposite portions and sexual pipe, partially resected cleaner attachment apparatus in an internal combustion engine, characterized by.