JPS5918108Y2 - Engine scaffolding and soundproofing device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to the reduction of noise in industrial axles in particular, as well as the improvement of scaffolding near the engine.

In conventional industrial vehicles, the main sources of noise were mechanical vibrations caused by engine operation and air noise vibrations.

For this reason, in the past, the soundproofing effect against noise caused by mechanical vibrations was increased by using vibration-insulating structures such as vibration-proof rubber, or by simply covering the area around the engine with noise caused by air noise. In order to maintain a good operating condition due to the engine's heat dissipation, it was also economically difficult to completely seal the engine, which had the disadvantage that it was not only impossible to sufficiently block out noise, but also that it was not possible to secure enough footholds near the engine. .

This idea was made to overcome the above-mentioned drawbacks at the same time.In order to efficiently attenuate the noise caused by air sound vibration on the side of the engine cover, and to make it convenient as a scaffold, a stepped scaffold was installed on the side of the engine cover. By providing a device that seals the outer part of the stepped scaffold and the middle part of the front and rear stairs, the noise caused by air sound vibration caused by engine operation is damped in a device that opens downwards of the engine. , which attempts to reduce the noise level on both sides of the noise source by providing sound insulation.

Hereinafter, this invention will be described in detail with reference to an illustrated embodiment.

In the figure, 10 is an earthworks vehicle, and 12 is a scaffolding/soundproofing device that is attached near the engine cover 14 of the vehicle.

The device has side plates 1, 16 and end plates 22, 24 facing inwardly from the side plates.

The first seventh plate 26 faces inwardly from the side plates 16 and further extends longitudinally with respect to the end plates 1 and 22, and meets an intermediate plate 28 facing upwardly from the second upper plate 30.

The surface of the upper play 1-26.30 has anti-slip means 32 to prevent the footing from slipping during operator work in the vicinity of the engine cover 14.

This device can be installed in any position, but as detailed above, in the installation position in this embodiment, the noise caused by the engine operation sound in the side direction of the vehicle is attenuated within the stepped soundproof device, and The downwardly attenuated noise is again attenuated by the ground, the vehicle frame, etc., producing a sound insulation effect.

Further, this device has an extremely simple structure, is easy to attach and detach, has a high sound insulation effect, and is economical.

[Brief explanation of drawings]

FIG. 1 is a side view of a vehicle equipped with a device showing an embodiment of this invention, and FIG. 2 is a partially cutaway perspective view of the device. 10 is an earthmoving vehicle, 12 is a soundproofing device that also serves as a scaffolding, 14 is an engine cover, 16 is a side plate, 22 is a first end plate, and 24 is a second end play 1 to . 26 is a first upper plate, 28 is an intermediate plate, and 30 is a second upper plate. 32 indicates anti-slip means.

Claims (1)

[Scope of utility model registration request] 22.24, first and second upper plates 26, 30 having anti-slip means 32 on their surfaces; A scaffolding and soundproofing device for an engine, characterized by comprising an intermediate plate 28 connected to portion plates T-26 and T-30.