JPH02131021U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the exhaust pipe device according to this invention, Fig. 2 is a plan view taken from BB in Fig. 1,
Figure 3 is a partially cutaway rear view of the hydraulic excavator;
This figure is a perspective view of the vicinity of the conventional exhaust pipe device in FIG. 3, and FIG. 5 is a sectional view taken along line AA in FIG. 3. 4, 4'... Upper bonnet, 5... Engine, 6, 14... Exhaust pipe device, 7, 7'... Tail pipe, 8, 15... Muffler, 9, 9'... Drain drain hose, 10, 16... conduit section, 17...
...Annular member, 18... Grommet cylinder, 19...
annulus.

Claims (1)

[Scope of utility model registration request] In an exhaust pipe device, a tail pipe for discharging engine exhaust gas is fixedly attached to an upper bonnet that can be rotated to open and close, and the engine exhaust gas led out from a muffler outlet is discharged to the outside through the tail pipe. A heat-resistant and flexible grommet cylinder is connected and vertically connected to the lower mouth of the tail pipe, and an annular member is provided at the upper end of the conduit portion of the muffler outlet, and the upper bonnet is closed. An exhaust pipe device characterized in that the annular lower surface of the grommet cylinder and the upper surface of the annular member at the muffler outlet are brought into close contact with each other when the grommet is in use.