JPH0312600Y2 - - Google Patents
Info
- Publication number
- JPH0312600Y2 JPH0312600Y2 JP1982061814U JP6181482U JPH0312600Y2 JP H0312600 Y2 JPH0312600 Y2 JP H0312600Y2 JP 1982061814 U JP1982061814 U JP 1982061814U JP 6181482 U JP6181482 U JP 6181482U JP H0312600 Y2 JPH0312600 Y2 JP H0312600Y2
- Authority
- JP
- Japan
- Prior art keywords
- driver
- lead plate
- soundproofing material
- vehicle
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 12
- 101100494448 Caenorhabditis elegans cab-1 gene Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
【考案の詳細な説明】
本考案は車両の防音装置、例えば荷役車両の防
音装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a soundproofing device for a vehicle, such as a soundproofing device for a cargo handling vehicle.
従来、荷役車両、特に大型のフオークリフト・
トラツクにおいては、第1図に示すように車体1
の内部にデイーゼル機関2を具え、車体1の上部
に運転室3を具えたものが一般的である。 Traditionally, cargo handling vehicles, especially large forklifts,
In a truck, the vehicle body 1 is
Generally, a vehicle is equipped with a diesel engine 2 inside and a driver's cab 3 in the upper part of the vehicle body 1.
上記の構成において、運転室1内のデイーゼル
機関2による振動、騒音が激しく問題になつてい
た。 In the above configuration, vibrations and noise caused by the diesel engine 2 in the driver's cab 1 have become a serious problem.
本考案は上記の問題を解決するためになされた
もので、コ字形断面の鉛板を使用することによ
り、上記の振動、騒音を防止する装置の提供を目
的とする。 The present invention was made to solve the above problems, and aims to provide a device that prevents the above vibrations and noise by using a lead plate with a U-shaped cross section.
以下本考案を第2〜3図に基づいて説明する
と、本考案の装置は、車体1のフレーム4の上面
に下面を固定された運転室3を具え、該運転室3
の下面と前記フレーム4の上面との間に防音材5
が挿入され、該防音材5が断面コ字形鉛板6と、
該鉛板6の上下鍔6a,6b間に挾まれるように
挿入されたゴム板7とで構成されたものである。 The present invention will be described below with reference to FIGS. 2 and 3. The device of the present invention includes a driver's cab 3 whose lower surface is fixed to the upper surface of a frame 4 of a vehicle body 1.
A soundproofing material 5 is provided between the lower surface of the frame 4 and the upper surface of the frame 4.
is inserted, and the soundproofing material 5 has a U-shaped cross section lead plate 6,
The rubber plate 7 is inserted between the upper and lower flanges 6a and 6b of the lead plate 6.
なお本実施例においては、防音材5は運転室3
の床面の全面に挿入されるものではなく、フレー
ム4の構成チヤンネル8の上面との接触部にのみ
挿入される。 In this embodiment, the soundproofing material 5 is used in the driver's cab 3.
It is not inserted into the entire floor surface of the frame 4, but is inserted only into the part where the frame 4 contacts the upper surface of the constituent channel 8.
次に作用を説明すると、車体1の内部に設けら
れたデイーゼル機関2による振動は、防音材5の
断面コ字形で軟かく変形可能な鉛板6と、該鉛板
6の上下鍔6a,6bの間に挾まれるように挿入
された弾性に富むゴム板7との弾性変形により吸
収されるので振動とその振動騒音とは著しく軽減
されて、運転室3内は静粛になる。なお、第4図
の如く、運転室3の下面とフレーム4の上面との
間に、単に鉛板6をゴム板7上に積層した防音材
5を挿入する例も考えられるが、この例では、ゴ
ム板7の外側端部が鉛板6により覆われていない
ので、内部騒音の一部がゴム板7を伝わつて車両
外へ漏れる可能性がある。 Next, to explain the operation, vibrations caused by the diesel engine 2 installed inside the vehicle body 1 are transmitted to the lead plate 6, which is soft and deformable and has a U-shaped cross section, of the soundproofing material 5, and the upper and lower brim 6a, 6b of the lead plate 6. Since the vibration is absorbed by the elastic deformation of the highly elastic rubber plate 7 inserted so as to be sandwiched therebetween, the vibration and its vibration noise are significantly reduced, and the interior of the operator's cab 3 becomes quiet. As shown in FIG. 4, it is also possible to consider an example in which a soundproofing material 5, which is simply a lead plate 6 laminated on a rubber plate 7, is inserted between the lower surface of the driver's cab 3 and the upper surface of the frame 4. Since the outer end of the rubber plate 7 is not covered by the lead plate 6, there is a possibility that some of the internal noise may be transmitted through the rubber plate 7 and leak out of the vehicle.
これに対し、本考案では、鉛板6を内側開放断
面コ字形に形成しているので、第3図の如く、内
部騒音がゴム板7を伝わつて車両外へ逃げようと
しても、鉛板6の外側壁6cにより吸収遮断さ
れ、車両外への内部騒音の漏れは低減する。ここ
で、第3,4図中の矢印は音の伝達経路示す。 In contrast, in the present invention, the lead plate 6 is formed with a U-shaped cross section that is open on the inside. The outside wall 6c absorbs and blocks internal noise, reducing leakage of internal noise to the outside of the vehicle. Here, the arrows in FIGS. 3 and 4 indicate the sound transmission path.
以上の説明から明らかな通り、本考案による
と、防音材を、内側を開放する断面コ字形鉛板
と、該鉛板の上下鍔の間に挾まれるように挿入さ
れたゴム板とで構成しているので、機関からの振
動とその騒音とは吸収されて、運転室内の振動と
騒音を著しく軽減すると共に、ゴム板を伝わつて
車両外へ逃げようとする内部騒音を盤板の外側壁
で吸収遮断して内部騒音が車両外へ漏れるのを低
減するといつた優れた効果がある。 As is clear from the above description, according to the present invention, the soundproofing material is composed of a lead plate with a U-shaped cross section that is open on the inside, and a rubber plate inserted between the upper and lower brim of the lead plate. As a result, the vibrations and noise from the engine are absorbed, significantly reducing the vibrations and noise in the driver's cabin, and the internal noise that is trying to escape to the outside of the vehicle through the rubber plate is absorbed by the outer wall of the panel. It has the excellent effect of reducing the leakage of internal noise to the outside of the vehicle by absorbing and blocking it.
第1図はフオークリフト・トラツクの全体側面
図、第2図は運転室とフレームとの取付部分解斜
視図、第3図は本考案防音材の断面図、第4図は
本考案の別の提案例を示す防音材の断面図であ
る。
1……車体、3……運転室、4……フレーム、
5……防音材、6……鉛板、6a,6b……鍔、
7……ゴム板。
Figure 1 is an overall side view of a forklift truck, Figure 2 is an exploded perspective view of the installation of the driver's cab and frame, Figure 3 is a sectional view of the soundproofing material of the present invention, and Figure 4 is another example of the soundproofing material of the present invention. FIG. 2 is a cross-sectional view of a soundproofing material showing a proposed example. 1...Vehicle body, 3...Driver's cab, 4...Frame,
5... Soundproofing material, 6... Lead plate, 6a, 6b... Tsuba,
7...Rubber plate.
Claims (1)
室を具え、該運転室の下面の全周と前記フレーム
の上面との間に防音材が挿入され、該防音材が内
側を開放する断面コ字形の鉛板と、該鉛板の上下
鍔の間に挾まれるように挿入されたゴム板とで構
成されたことを特徴とする車両の防音装置。 A driver's cab is provided with a lower surface fixed to the upper surface of a vehicle body frame, and a soundproofing material is inserted between the entire circumference of the lower surface of the driver's cabin and the top surface of the frame, and the soundproofing material has a U-shaped cross section with an open inside. 1. A soundproofing device for a vehicle, comprising a lead plate and a rubber plate inserted so as to be sandwiched between the upper and lower brim of the lead plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6181482U JPS58163339U (en) | 1982-04-26 | 1982-04-26 | Vehicle soundproofing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6181482U JPS58163339U (en) | 1982-04-26 | 1982-04-26 | Vehicle soundproofing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58163339U JPS58163339U (en) | 1983-10-31 |
JPH0312600Y2 true JPH0312600Y2 (en) | 1991-03-25 |
Family
ID=30071995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6181482U Granted JPS58163339U (en) | 1982-04-26 | 1982-04-26 | Vehicle soundproofing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58163339U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5012092U (en) * | 1973-06-06 | 1975-02-07 |
-
1982
- 1982-04-26 JP JP6181482U patent/JPS58163339U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5012092U (en) * | 1973-06-06 | 1975-02-07 |
Also Published As
Publication number | Publication date |
---|---|
JPS58163339U (en) | 1983-10-31 |
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