JPH0232503Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an intake system for an engine.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

Reference numeral 2 denotes a tilt cab type truck, which has a cabin 8 rotatably supported around a hinge 6 provided at the front end of the frame 4.

Reference numeral 10 denotes an air cleaner that supplies clean air to an engine (not shown) mounted on the frame 4. The air cleaner 10 is fixedly arranged on the frame 4 and has an intake port 12.

Reference numeral 14 denotes an intake pipe fixedly arranged at the rear of the cabin 8. An inlet is formed at the upper end 16 and an outlet is formed at the lower end 17. A bellows-shaped rubber hose 18 is fixed to the outlet. There is. The intake pipe 14 is fixed to the cabin 8 by brackets 20,20. In the illustrated position, the hose 18 fits over the inlet 12.

Reference numeral 22 denotes a stopper member made of a sheet metal fixed to the rear of the cabin 8, and its free end 24 is spaced approximately 20 mm in front of the hose 18 and extends over substantially the entire length of the hose 18.

In the above configuration, for supply inspection, maintenance, etc.
When the cabin 8 is rotated as shown in FIG. 2, the hose 18 is rotated upward together with the intake pipe 14, and is deformed by its own weight as shown by the arrow. This varies depending on the ambient temperature, but deformation occurs in about 30 minutes at high temperatures, and in 3 to 5 hours even when cold.

However, the free end 24 of the stopper member 22 is located in front of the hose 18, that is, below the hose 18 when the cabin 8 rotates, and the deformation is prevented at the position where it abuts against the stopper member 22.

Therefore, when the cabin 8 is returned to the running state as shown in FIG. improves and prevents dust from being sucked in.

Therefore, according to the present embodiment, the intake system is configured such that a rubber hose 18 is provided at the lower end of the intake pipe 14 fixed to the cabin 8 and communicated with the intake port 14 of the air cleaner 10 fixedly arranged on the frame 4. Even if the hose 18 is returned to the cabin 8, the hose 18 and the suction port 14 are conveniently fitted together to prevent the deformation of the hose 18 to below a predetermined value by the stopper member 22.
This has the effect of making the work easier, preventing deformation of the hose 18 and deformation due to abnormal fitting during return, and improving durability.

Further, according to this embodiment, since the stopper member 22 has a distance from the hose 18 at the return position of the cabin 8, a phase shift between the cabin 8 side and the frame 4 side is allowed, and vibration transmission etc. can be made effective. It has a blocking effect.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram showing an embodiment of the present invention;
FIG. 2 is an explanatory diagram of the operation of one embodiment. 4: frame, 8: cabin, 10: air cleaner, 12: suction port, 14: intake pipe, 18: hose, 22: stopper member.

Claims (1)

[Scope of utility model registration request] The air cleaner is mounted on a frame and supplies clean air to the engine, and has an intake port that opens upward.The air cleaner is fixed to a cabin that is rotatably supported by the frame, and has an inlet at the upper end and an outlet at the lower end. An intake pipe, a bellows-shaped rubber hose fixed to the lower end of the intake pipe and communicating with the intake port, and a bellows-shaped rubber hose located near the hose and extending over substantially the entire length of the hose and fixed to the cabin. An intake system for an engine, comprising a stopper member made of a sheet metal that supports the hose and prevents deformation of the hose when the cabin is tilted.