JP2001020754A - Heat and noise insulating unit for engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce transmission of vibration and noises generated in an engine of a work vehicle to a driver's seat side. SOLUTION: A plate 30 with heat insulating material 30b adhered on a rear face of a steel plate 30a is provided with a recess portion at a lower hem thereof along an outer shape of a clutch housing. The plate 30 is fixed with a rear plate 32 at a rear portion of an engine 11 such that it stands in front of a dash panel 18. Seal member 34 is mounted to an upper hem and left/right hems of the plate 30, and the plate 30 is abutted to an inner side face of a bonnet cover 12 via the seal member 34. With this configuration, vibration and heat generated in the engine 11 is insulated by the plate 30 and is not easily transmitted to a dash panel 18 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating and soundproofing device for an engine, and more particularly, to a heat insulating and soundproofing device for an engine provided between a driver's seat of a working vehicle such as an agricultural tractor and a passenger management machine and the engine. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, this type of work vehicle has an engine mounted on a front portion of a body, a clutch housing connected to a rear plate at a rear portion of the engine, and a transmission case connected to a rear portion thereof. It is configured to be transmitted to the transmission via the transmission. The engine is covered by a hood cover, and a dash panel is arranged between the engine and a meter panel in a driver's seat.

The dash panel is formed of a synthetic resin, and a lower portion of the dash panel is fixed to the body frame so as to cover an upper half of the clutch housing, and a meter panel and a handle post are provided on the driver's seat side of the dash panel. Is attached. Thus, the engine room and the cabin are partitioned by the dash panel.

[0004]

As described above, the cabin of the working vehicle and the engine room are separated by the dash panel. However, the vibration and noise of the engine are trapped in the dash panel, and the operator in the driver's seat is instructed. Was discomforting.

Therefore, there arises a technical problem to be solved in order to reduce the transmission of the vibration and noise of the engine in the working vehicle to the driver's seat side, and the present invention solves this problem. With the goal.

[0006]

SUMMARY OF THE INVENTION The present invention has been proposed in order to achieve the above object. An engine is mounted on a front part of an airframe, and a clutch housing is connected to a rear plate at a rear part of the engine. A dash panel is arranged between the engine and a meter panel in a driver's seat. In a work vehicle in which the engine is covered with a hood cover, the dash panel is fastened to a rear plate at a rear portion of the engine so as to be in front of the dash panel. A lower side of the plate is recessed along the outer shape of the clutch housing, and an upper side and both left and right sides of the plate are provided on an inner surface of the hood cover via a seal member. The present invention provides a heat insulating / soundproofing device for an engine which is formed so as to be in contact with the engine and further has a heat insulating material or a soundproofing material arranged in close contact with the plate. That.

[0007]

An embodiment of the present invention will be described below in detail with reference to the drawings. FIGS. 1 to 3 show a tractor 10 as an example of a working vehicle, in which an engine 11 is mounted on a front portion of a body, and a hood cover 12 is provided above the engine 11.
The left and right sides of the engine 11 are covered with side covers 13 and 13. A cabin 14 is provided from the center to the rear of the fuselage.
A driver's seat 15 is provided therein, and a meter panel 16 and a handle post 17 are provided in front of the driver's seat 15. A dash panel 18 is disposed between the engine 11 and the meter panel 16, and the cabin 14 and the engine room 19 (the space covered by the hood cover 12 and the side covers 13, 13). Section) is partitioned. The dash panel 18
The meter panel 16 and the handle post 17 are attached to the driver's seat 15 side.

Here, a bracket 20 is fixedly provided at the lower part of the floor of the cabin 14, and a washer tank 21 is installed on the bracket 20. The washer tank 21 is filled with a washer liquid, and sends the washer liquid to washer nozzles 24 and 25 provided near the front wiper 22 and the rear wiper 23 under pressure. Conventionally, since the washer tank was installed in the engine room 19, there was a possibility that the washer tank would be damaged by vibration or heat generation of the engine 11, but by installing the washer tank 21 below the floor of the cabin 14, It is no longer necessary to consider vibration and heat resistance, and the bracket 20 also protects the lower portion of the washer tank 21 to improve durability. A hole (not shown) is formed on the floor of the cabin 14 at a position where the cabin 14 does not hinder getting on and off, and is used as a water supply port of the washer tank 21.

The washer tank 21 and the washer nozzles 24 and 25 are connected by a washer hose 26. The washer hose 26 is connected to the cabin 14 by a washer hose 26.
It is routed to the inside corner, is led out of the cabin 14 at a position immediately adjacent to the washer nozzles 24, 25, and is connected to water receiving ports (not shown) of the washer nozzles 24, 25.
Alternatively, if the water receiving ports of the washer nozzles 24 and 25 are housed and installed in the cabin 14, the washer hose 26 is connected to the washer nozzles 24 and 25 directly from the room without being routed outside the cabin 14. You can also. For this reason, it is not necessary to expose the washer hose to the outside of the cabin 14 as in the related art and to route around the upper part of the roof, thereby shortening the routing route of the washer hose and preventing the washer hose from being damaged. Can be.

FIGS. 4 and 5 show a plate 3 for heat insulation and sound insulation.
0, the plate 30 is disposed between the engine 11 and the dash panel 18. The plate 30
The lower side is recessed along the outer shape of the clutch housing 31, and a bolt 33 is attached to the rear plate 32 at the rear of the engine 11.
At the front of the dash panel 18.

The plate 30 is provided with a heat insulating material such as glass wool or styrofoam or a soundproofing material (hereinafter simply referred to as "heat insulating material") 30b which is closely attached to a steel plate 30a. In the illustrated example, the heat insulating material 30b is adhered to the rear surface (dash panel 18 side) of the steel plate 30a, but the heat insulating material 30b may be closely adhered to the front surface (engine 11 side) or both front and rear surfaces of the steel plate 30a. A seal member 34 having a U-shaped cross section is provided on the peripheral edge of the plate 30.
The upper side and the left and right sides of the plate 30 are formed so as to abut the inner surfaces of the hood cover 12 and the side covers 13, 13 via the sealing member 34.

Accordingly, since the engine room 19 and the cabin 14 are partitioned by the plate 30 disposed between the engine 11 and the dash panel 18, the vibration and noise of the engine 11 are transmitted to the cabin 14 side. This makes it difficult to prevent vibration and noise from being trapped in the dash panel 18. The plate 30 is erected on the rear plate 32 of the engine 11, and the upper side and both left and right sides of the plate 30 abut on the inner surfaces of the hood cover 12 and the side covers 13, 13 via the sealing member 34. There is no possibility that the opening / closing and attaching / detaching operations of the hood cover 12 and the side cover 13 will be hindered.

The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.

[0014]

According to the present invention, as described in detail in the above embodiment, a plate is erected between the engine of the working vehicle and the dash panel, and the upper side and both left and right sides of the plate are interposed with seal members. Abuts the inside surface of the hood cover. Since the heat insulating material or the soundproofing material is disposed in close contact with the plate, vibration and noise of the engine transmitted to the driver's seat side are reduced, and hot air in the engine room is shut off. Thus, the vibration and noise of the engine do not stay inside the dash panel, and the operator in the driver's seat can work without discomfort.

Further, since the lower side of the plate is recessed along the outer shape of the clutch housing, the lower side is fastened to the rear plate of the engine so that the plate can easily stand up front of the dash panel. Can be set up.
Since the upper side and both left and right sides of the plate abut against the inner side surfaces of the hood cover and the side cover via the sealing member, there is no hindrance to attachment / detachment work of the hood cover and the side cover, and maintenance is easy. It is an invention that has various effects.

[Brief description of the drawings]

 The figure shows an embodiment of the present invention.

FIG. 1 is a side view of a tractor.

FIG. 2 is a front view of the tractor.

FIG. 3 is a rear view of the tractor.

FIG. 4 is a side view of the engine with the plate attached.

FIG. 5 is a view taken along line AA of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Tractor 11 Engine 12 Bonnet cover 15 Driver's seat 16 Meter panel 18 Dash panel 30 Plate 30a Steel plate 30b Heat insulating material (or sound insulation material) 31 Clutch housing 32 Rear plate 34 Seal member

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Kazunori Doi 1-Yachikura, Tobe-cho, Iyo-gun, Ehime Pref. BE06 BE27 3D038 AA01 AA08 AB05 AC00 AC01 AC10

Claims (1)

[Claims] An engine is mounted on a front part of an airframe, a clutch housing is connected to a rear plate at a rear part of the engine, and a dash panel is arranged between the engine and a meter panel in a driver's seat. In a work vehicle covered with a bonnet cover, a plate fastened to a rear plate of the rear portion of the engine and erected in front of the dash panel, and a lower side of the plate corresponds to an outer shape of the clutch housing. The upper side and both left and right sides of the plate are formed so as to be in contact with the inner side surface of the bonnet cover via a sealing member, and further, a heat insulating material or a sound insulating material is closely attached to the plate. A heat insulating and soundproofing device for an engine, which is provided.