JPH0324920Y2 - - Google Patents
Info
- Publication number
- JPH0324920Y2 JPH0324920Y2 JP1983086387U JP8638783U JPH0324920Y2 JP H0324920 Y2 JPH0324920 Y2 JP H0324920Y2 JP 1983086387 U JP1983086387 U JP 1983086387U JP 8638783 U JP8638783 U JP 8638783U JP H0324920 Y2 JPH0324920 Y2 JP H0324920Y2
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- hole
- section
- rubber
- engine
- 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
- 229920001971 elastomer Polymers 0.000 claims description 40
- 239000005060 rubber Substances 0.000 claims description 40
- 238000010276 construction Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Description
【考案の詳細な説明】
本考案は建設機械車輌のエンジンマウントに使
用される防振マウント装置に関するものである。[Detailed Description of the Invention] The present invention relates to a vibration-proof mount device used for engine mounts of construction machinery vehicles.
従来の防振マウント装置は第１図ａ，ｂに示す
ような略円錐台形断面形状のゴム部とその周囲に
ストツパー効果をもつ円筒形のゴム部とで構成さ
れる防振ゴムから成るものであり、バウンド側
（下側）とリバウンド側（上側）を第３図ａ，ｂ
のように対向して取付ける方法が採用されてい
た。第１図ａは台形断面のもの、ｂは台形断面の
下部に凹部を有するもので従来の防振マウントの
外観図、第２図ａ，ｂは第１図ａ，ｂの縦断面
図、第３図ａ，ｂは防振マウントの従来のものの
取付図、第４図ａ，ｂはエンジン搭載時の防振マ
ウントの従来の取付け状態を示す説明図である。
１′はゴム部、２′は内筒、３′はＬ字断面形外筒、
４′はエンジン側ブラケツト、５′はフレーム側サ
ポートステー、６′はワツシヤ、７′はボルト、
８′はナツトを示す。この防振マウント装置にお
いて、エンジン荷重が加えられると取付け状態は
第４図のようになり、バウンド側（下側）とリバ
ウンド側（上側）のストツパーが作用した時、下
方向にはクリアランスが小さいためにすぐにスト
ツパーが作用して変位が小さいが、上方向にはク
リアランスが大きいため変位が大きくなる。この
ためエンジンの上下方向の変位がアンバランスに
なる。また、これにより変位量の多い上側ゴムの
寿命が短くなる。 A conventional anti-vibration mount device is made of anti-vibration rubber, which consists of a rubber part with a generally truncated conical cross-section and a cylindrical rubber part with a stopper effect around the rubber part, as shown in Figures 1a and b. Yes, the bound side (lower side) and rebound side (upper side) are shown in Figure 3 a and b.
A method of mounting them facing each other was adopted. Figure 1a is a trapezoidal cross-section, b is a trapezoidal cross-section with a recess at the bottom, and is an external view of a conventional anti-vibration mount. Figures 2a and b are longitudinal cross-sectional views of Figures 1a and b, 3a and 3b are installation diagrams of a conventional vibration isolation mount, and FIGS. 4a and 4b are explanatory diagrams showing a conventional installation state of the vibration isolation mount when an engine is mounted.
1' is a rubber part, 2' is an inner cylinder, 3' is an L-shaped cross-sectional outer cylinder,
4' is the engine side bracket, 5' is the frame side support stay, 6' is the washer, 7' is the bolt,
8' indicates a nut. In this anti-vibration mount device, when the engine load is applied, the installation state becomes as shown in Figure 4, and when the stoppers on the bounce side (lower side) and rebound side (upper side) act, there is a small clearance in the downward direction. Therefore, the stopper acts immediately and the displacement is small, but since the clearance is large in the upward direction, the displacement becomes large. As a result, the displacement of the engine in the vertical direction becomes unbalanced. This also shortens the life of the upper rubber, which has a large amount of displacement.
本考案は上記欠点を排除し、大きな衝撃の加わ
つた時の上下方向の変位量を同じくし、上下のゴ
ムの寿命をほぼ同等にすることを目的として考案
されたものである。 The present invention was devised for the purpose of eliminating the above-mentioned drawbacks, equalizing the amount of displacement in the vertical direction when a large impact is applied, and making the lives of the upper and lower rubbers almost the same.
本考案は、エンジン側ブラケツトの貫通孔とフ
レーム側サポートステーとの間に配設された防振
マウント装置であつて、前記貫通孔内に遊嵌され
た内筒と該貫通孔に接触するＬ字形断面形状外筒
との間に、略円錐台形断面形状のゴム部と、その
外周に前記Ｌ字形断面形状外筒に接して形成した
円筒形状のゴム部とを有する防振ゴムを１組対向
して前記貫通孔の上下に設置し、ボルト、ナツ
ト、ワツシヤにより前記フレーム側サポートステ
ーに連結した建設機械車輌の防振マウント装置に
おいて、リバウンド側すなわち前記貫通孔の上側
に配設された前記防振ゴムの前記円筒形状のゴム
部の厚さを、バウンド側すなわち前記貫通孔の下
側の前記防振ゴムのそれよりも厚くして、上下マ
ウントのストツパー部のクリアランスが静荷重が
加わつたときに同じになるようにしたことを特徴
とする防振マウント装置にある。すなわち本考案
によれば、取付け時の上下ゴムのストツパー高さ
を相異させ、上下のストツパー部クリアランスを
同じにし、これにより大きな衝撃が加わつた時
に、下方向及び上方向に変位してストツパーに当
るまでの変位量が上下同じになりエンジンの上下
方向の変位のバランスがとれ、また、これにより
上下のゴムの寿命がほぼ同等となる防振マウント
装置を提供しようとするもので、建設機械車輌の
エンジンマウントに応用できるものである。 The present invention is a vibration-proof mount device disposed between a through-hole of an engine-side bracket and a frame-side support stay, which includes an inner cylinder loosely fitted into the through-hole and an L that contacts the through-hole. A pair of anti-vibration rubber having a rubber portion having a substantially truncated conical cross section and a cylindrical rubber portion formed on the outer periphery of the rubber portion in contact with the outer cylinder having an L-shaped cross section are opposed between the outer cylinder and the outer cylinder having a L-shaped cross section. In the anti-vibration mount device for a construction machinery vehicle, which is installed above and below the through-hole and connected to the frame-side support stay by bolts, nuts, and washers, the anti-vibration mount device is provided on the rebound side, that is, above the through-hole. The thickness of the cylindrical rubber part of the vibration rubber is made thicker than that of the vibration isolating rubber on the bound side, that is, the lower side of the through hole, and the clearance of the stopper part of the upper and lower mounts is increased when a static load is applied. The present invention provides an anti-vibration mount device characterized in that the vibration-proof mounting device is made to have the same characteristics. In other words, according to the present invention, the heights of the stopper of the upper and lower rubbers are made different during installation, and the clearance of the upper and lower stopper parts is the same, so that when a large impact is applied, the stopper is displaced downward and upward, and the stopper is The aim is to provide a vibration-proof mount device that balances the displacement of the engine in the vertical direction by making the amount of displacement up to the point of impact the same on both the top and bottom. This can be applied to engine mounts.
本考案の防振マウント装置の一実施例を第５図
乃至第８図について説明する。第５図ａ，ｂは本
考案の防振マウント装置のバウンド側の防振ゴム
のふたつの異なる実施例の外観図で、ａは台形断
面のもの、ｂは台形断面の下部に凹部を有するも
のの説明図、第６図ａ，ｂは本考案の防振マウン
ト装置のリバウンド側の防振ゴムの同じくふたつ
の実施例の外観図である。第７図ａ，ｂはそれぞ
れ第５図ａと第６図ａおよび第５図ｂと第６図ｂ
の防振ゴムから成る本考案の実施例の無負荷状態
における取付図、第８図ａ，ｂはそれぞれエンジ
ン搭載時の取付状態図である。１は防振ゴム、２
は内筒、３はＬ字断面形外筒、４はエンジン側ブ
ラケツト、５はフレーム側サポートステー、６は
ワツシヤ、７はボルト、８はナツトを示す。第５
図及び第６図に示すように防振ゴムは略円錐台形
断面形状のゴム部とその周囲にストツパー効果を
もつ円筒形のゴム部とで構成される。略円錐台形
断面形状のゴム部はバウンド側およびリバウンド
側共に同じ高さのものである。これに対してその
周囲の円筒形のゴム部はバウンド側（第５図）で
は高さh1と比較的薄いが、リバウンド側（第６
図）では高さh2と比較的厚くなつている。このた
め、第７図に示す無負荷取付時にはバウンド側の
クリアランスh4はリバウンド側のクリアランスh3
より大きいが、エンジン荷重が加わつた状態（第
８図）において取付上側と下側のストツパークリ
アランス（h6，h5）を同じになるように設定して
ある。すなわちh1＜h2，h3＜h4及びh5＝h6とな
る。なお、上側（リバウンド側）のゴムはストツ
パーの役割が強く、下側（バウンド側）のゴムよ
り上側のゴムは初期より多少硬度を高くしている
場合が多い。下側は防振効果を考慮して軟かくし
ており、エンジン荷重が加わつた状態で上側のゴ
ムの変形量に見合う硬度となる。 An embodiment of the anti-vibration mount device of the present invention will be described with reference to FIGS. 5 to 8. Figures 5a and 5b are external views of two different embodiments of the vibration isolating rubber on the bound side of the vibration isolating mount device of the present invention, where a is a trapezoidal cross section and b is a trapezoidal cross section with a recess at the bottom. The explanatory drawings, FIGS. 6a and 6b, are external views of two embodiments of the anti-vibration rubber on the rebound side of the anti-vibration mount device of the present invention. Figure 7a and b are respectively Figure 5a and Figure 6a and Figure 5b and Figure 6b.
FIGS. 8A and 8B are an installation diagram of an embodiment of the present invention made of anti-vibration rubber in a no-load state, and FIGS. 8A and 8B are diagrams of the installation state when an engine is mounted, respectively. 1 is anti-vibration rubber, 2
3 is an inner cylinder, 3 is an L-shaped cross-sectional outer cylinder, 4 is an engine side bracket, 5 is a frame side support stay, 6 is a washer, 7 is a bolt, and 8 is a nut. Fifth
As shown in the figures and FIG. 6, the vibration isolating rubber is composed of a rubber part having a substantially truncated conical cross section and a cylindrical rubber part surrounding the rubber part having a stopper effect. The rubber portion, which has a substantially truncated conical cross section, has the same height on both the bound side and the rebound side. On the other hand, the cylindrical rubber part around it is relatively thin with a height of h 1 on the bounce side (Fig. 5), but on the rebound side (Fig.
In Figure), it is relatively thick with a height of h 2 . Therefore, when the no-load installation is performed as shown in Figure 7, the bound side clearance h 4 is the rebound side clearance h 3
Although larger, the stopper clearances (h 6 , h 5 ) on the upper and lower mounting sides are set to be the same when the engine load is applied (Fig. 8). That is, h 1 < h 2 , h 3 < h 4 and h 5 = h 6 . The rubber on the upper side (rebound side) plays a strong role as a stopper, and the rubber on the upper side is often harder than the rubber on the lower side (bound side). The lower side is made softer in consideration of the vibration-proofing effect, and the hardness corresponds to the amount of deformation of the upper rubber when the engine load is applied.
本考案の作用について説明する。通常のエンジ
ン支持時においては、上下のストツパークリアラ
ンスは同じになる（第８図においてh5＝h6）。大
きな衝撃力が加えられた時には、上又は下側のゴ
ムが大きく変形し防振ゴムのストツパー部が作用
し変形量が急激に小さくなるが、この時の変形量
は上下同等となり、前述の従来例のようなアンバ
ランスは生じない。 The operation of the present invention will be explained. When the engine is normally supported, the upper and lower stopper clearances are the same (h 5 =h 6 in FIG. 8). When a large impact force is applied, the upper or lower rubber deforms greatly and the stopper part of the anti-vibration rubber acts and the amount of deformation decreases rapidly, but the amount of deformation at this time is the same on both the upper and lower sides, which is different from the conventional method described above. An imbalance like the example does not occur.
本考案は以上の構成よりなり、次のような効果
を奏するものである。 The present invention has the above configuration and has the following effects.
(1) 大きな衝撃力が加わつた時のエンジンの上下
方向への変形量が同じになり、上下方向への動
きのバランスがとれる。(1) When a large impact force is applied, the amount of vertical deformation of the engine becomes the same, and the vertical movement is balanced.
(2) エンジンの上下方向への変形量が同じになる
ことにより、上下のゴム寿命がほぼ同等とな
る。(2) Since the amount of vertical deformation of the engine is the same, the lifespan of the upper and lower rubbers is almost the same.
第１図ａは台形断面のもの、ｂは台形断面の下
部に凹部を有するもので従来の防振マウントの外
観図、第２図ａ，ｂは第１図ａ，ｂの縦断面図、
第３図ａ，ｂは防振マウントの従来のものの取付
図、第４図ａ，ｂはエンジン搭載時の防振マウン
トの従来の取付状態を示す説明図、第５図ａ，ｂ
は本考案の防振マウント装置のバウンド側の防振
ゴムの実施例の外観図で、ａは台形断面のもの、
ｂは台形断面の下部に凹部を有するものの説明
図、第６図ａ，ｂは本考案防振マウント装置のリ
バウンド側の防振ゴムの実施例の外観図で、ａは
台形断面のもの、ｂは台形断面の下部に凹部を有
するものの説明図、第７図ａ，ｂは本考案防振マ
ウント装置の実施例の無負荷取付状態を示す図、
第８図ａ，ｂはエンジン搭載時の本考案の実施例
の取付状態図である。
１……防振ゴム、２……内筒、３……Ｌ字断面
形外筒、４……エンジン側ブラケツト、５……フ
レーム側サポートステー、６……ワツシヤ、７…
…ボルト、８……ナツト。
Figure 1a is a trapezoidal cross-section, b is a trapezoidal cross-section with a recessed portion at the bottom, and is an external view of a conventional anti-vibration mount; Figures 2a and b are longitudinal sectional views of Figures 1a and b;
Figures 3a and b are installation diagrams of conventional anti-vibration mounts, Figures 4a and b are explanatory diagrams showing the conventional installation state of anti-vibration mounts when an engine is mounted, and Figures 5a and b.
1 is an external view of an embodiment of the vibration isolating rubber on the bound side of the vibration isolating mount device of the present invention, a is a trapezoidal cross section,
b is an explanatory diagram of a trapezoidal cross-section with a concave portion at the lower part; FIGS. 6a and b are external views of an embodiment of the vibration-proof rubber on the rebound side of the vibration-proof mount device of the present invention; a is a trapezoidal cross-section; b 7 is an explanatory diagram of a trapezoidal cross section with a concave portion at the bottom, and FIGS. 7a and 7b are diagrams showing the no-load mounting state of the embodiment of the vibration-proof mount device of the present invention,
FIGS. 8a and 8b are diagrams showing the installation state of the embodiment of the present invention when the engine is installed. 1... Anti-vibration rubber, 2... Inner cylinder, 3... L-shaped cross-section outer cylinder, 4... Engine side bracket, 5... Frame side support stay, 6... Washer, 7...
...Boruto, 8...Natsuto.
Claims (1)
ポートステーとの間に配設された防振マウント装
置であつて、前記貫通孔内に遊嵌された内筒と該
貫通孔に接触するＬ字形断面形状外筒との間に、
略円錐台形断面形状のゴム部と、その外周に前記
Ｌ字形断面形状外筒に接して形成した円筒形状の
ゴム部とを有する防振ゴムを１組対向して前記貫
通孔の上下に設置し、ボルト、ナツト、ワツシヤ
により前記フレーム側サポートステーに連結した
建設機械車輌の防振マウント装置において、リバ
ウンド側すなわち前記貫通孔の上側に配設された
前記防振ゴムの前記円筒形状のゴム部の厚さを、
バウンド側すなわち前記貫通孔の下側の前記防振
ゴムのそれよりも厚くして、上下マウントのスト
ツパー部のクリアランスが静荷重が加わつたとき
に同じになるようにしたことを特徴とする防振マ
ウント装置。 A vibration-proof mount device disposed between a through-hole of an engine-side bracket and a frame-side support stay, which includes an inner cylinder loosely fitted into the through-hole and an outside having an L-shaped cross-section that contacts the through-hole. Between the tube and
A pair of anti-vibration rubbers each having a rubber part having a substantially truncated conical cross-section and a cylindrical rubber part formed on its outer periphery in contact with the outer tube having an L-shaped cross-section are installed above and below the through-hole, facing each other. , in a vibration-proof mounting device for a construction machinery vehicle connected to the frame-side support stay by bolts, nuts, and washers, the cylindrical rubber portion of the vibration-proof rubber disposed on the rebound side, that is, above the through hole; thickness,
The vibration isolator is made thicker than that of the vibration isolator on the bound side, that is, on the lower side of the through hole, so that the clearance of the stopper portions of the upper and lower mounts becomes the same when a static load is applied. Mounting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8638783U JPS59191452U (en) | 1983-06-08 | 1983-06-08 | Anti-vibration mount device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8638783U JPS59191452U (en) | 1983-06-08 | 1983-06-08 | Anti-vibration mount device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59191452U JPS59191452U (en) | 1984-12-19 |
| JPH0324920Y2 true JPH0324920Y2 (en) | 1991-05-30 |
Family
ID=30216323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8638783U Granted JPS59191452U (en) | 1983-06-08 | 1983-06-08 | Anti-vibration mount device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59191452U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005121161A (en) * | 2003-10-17 | 2005-05-12 | Bridgestone Corp | Vibration control device |
| JP5225603B2 (en) | 2007-03-30 | 2013-07-03 | 株式会社ブリヂストン | Vibration isolator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS544630U (en) * | 1977-06-13 | 1979-01-12 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51131592U (en) * | 1975-04-16 | 1976-10-23 |
-
1983
- 1983-06-08 JP JP8638783U patent/JPS59191452U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS544630U (en) * | 1977-06-13 | 1979-01-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59191452U (en) | 1984-12-19 |
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