TWI269723B - Vibration isolation support structure of fuel tank for vehicle - Google Patents

Vibration isolation support structure of fuel tank for vehicle Download PDF

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Publication number
TWI269723B
TWI269723B TW094118622A TW94118622A TWI269723B TW I269723 B TWI269723 B TW I269723B TW 094118622 A TW094118622 A TW 094118622A TW 94118622 A TW94118622 A TW 94118622A TW I269723 B TWI269723 B TW I269723B
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TW
Taiwan
Prior art keywords
cushion rubber
vibration
protrusion
vehicle
fuel tank
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TW094118622A
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Chinese (zh)
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TW200609131A (en
Inventor
Kunio Miyauchi
Yuji Muto
Original Assignee
Honda Motor Co Ltd
Yamashita Rubber Kk
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Publication of TW200609131A publication Critical patent/TW200609131A/en
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Publication of TWI269723B publication Critical patent/TWI269723B/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F16F1/44—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded mainly in compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/063—Arrangement of tanks
    • B60K15/067—Mounting of tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/376—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having projections, studs, serrations or the like on at least one surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Vibration Prevention Devices (AREA)
  • Gasket Seals (AREA)

Abstract

To suitably and compatibly realize a holding load and vibration-proof function of a cushion rubber interposed between a fuel tank and a vehicle body. A first protrusion 30, a second protrusion 31, and a third protrusion 32 having different protrusion height are formed on a surface in contact with a floor panel 24 of the vibration-proof cushion rubber 23 interposed between a tank main body 11 and the floor panel 24. A vibration-proof function for preventing noise or vibration of the tank main body 11 from being transmitted to the vehicle body can be ensured while ensuring the holding function of the tank main body 11 on the floor panel 24 by changing a compressed amount of the protrusions 30, 31, 32 according to the height of the respective protrusions 30, 31, 32 when the tank main body 11 is pressed on the floor panel 24.

Description

1269723 九、發明說明： 【發明所屬之技術領域】 本發明係關於介在於燃料槽與車體間的車輛用燃料槽之 防振支持構造。 【先前技術】 將〉Ία車的燃料槽經由螺絲或金屬帶安裝於車體時，由下 述專利文獻1及專利文獻2，已習知有，藉由於槽本體的表 面與車體的抵接部介在防振橡膠，使燃料在槽本體内波動 籲 而產生的噪音或振動難以傳到車體者。 然而，上述先前的緩衝橡膠，由於係以一定厚度的板狀 橡膠所構成，故難以發揮充分的防振功能。因此，已知有 使缓衝橡膠的剖面為波型或Μ字型，使該突起部分抵接燃 料槽以提高防振功能者。 [專利文獻1]特開平6-106999號公報 [專利文獻2]實開平5-89060號公報 【發明内容】 但是’只是使介於燃料槽與車體間的緩衝橡膠成為波型 剖面或Μ字型剖面’難以使喊保於車體牢固地保持槽本體 之保持功能及確保槽本體的噪音或振動難以傳到車體的防 振功能適當地並存。 本發明係有鑒於上述情事 燃料槽與車體間的緩衝橡膠 並存為目的。 所完成者，其目的在於使介於 的保持負荷及防振功能適當地 為達成上述目的 根據請求項〗之發明 提出一種車輛 W2195.doc 1269723 用燃料槽之防振支持構造，其特徵係使緩衝橡膠介於槽本 體及車體間，且在緩衝橡膠接觸車體之面’形成突出高度 相異之複數突起。 根據明求項2之發明，提出-種車輛用燃料槽之防 振支持構造，盆哈士主、七 ^ 肖衣項1之構造之外，缓衝橡膠之接觸 車體之面之材夤較接觸槽本體之面之材質為硬質。 又根據5月求項3之發明，提出一種車輛用燃料槽之防 振支持構造，其除請求項1或2之構造之外，使位於緩衝橡 膠之最外側之突起之外側面向内傾斜。 再者’實施例之底盤24對應於本發明之車體，實施例之 第1第3大起30、31、32對應於本發明之突起、 32 〇 根據明求項1之構造，由於在介於槽本體及車體間的緩 衝:膠=觸車體之面，形成突出高度相異之複數突起，故 按”、、各大起之鬲度改變該突起之壓縮量，可邊確保槽本體 φ 丨車體之保持功能，邊確保防止槽本體的噪音或振動傳到 車體的防振功能。 根據咕求項2之構造，由於使緩衝橡膠接觸車體之面之 材貝車乂接觸槽本體之面之材質為硬質，故使緩衝橡膠之軟 夤邛刀接觸槽本體而可以更有效果地遮断從槽本體的噪音 或振動傳到車體。 根據π求項3之構造，由於使位於緩衝橡膠之最外側之 突起之外側面向内傾斜，故可防止前述突起受到來自槽本 -勺負射而向外倒，使缓衝橡膠對槽本體的支持更確實。 102195.doc 1269723 【實施方式】 以下，將本發明之實施形態，基於附圖所示本發明之實 施例加以說明。 圖1〜圖6係表示本發明之第1實施例者，圖i係車輛用燃 料槽的立體圖，圖2係圖1之2-2線剖面圖，圖3係圖2之3部 放大圖，圖4係將緩衝橡膠由底盤側所視之立體圖，圖5係 將緩衝橡膠由槽本體側所視之立體圖，圖7係表示緩衝橡 膠之壓縮量與壓縮負荷之關係之圖表。 如圖1及圖2所示，以合成樹脂一體成形之車輛用燃料槽 T之槽本體U，將形成於其上壁12之開口 14可自由裝脫地 覆蓋之安裝凸緣i 5之下面經由支架i 6支持燃料幫浦單元 17，由燃料幫浦單元17延伸的供油管18貫通安裝凸緣Η連 接引擎（無圖示）的同時，由引擎的回油管19貫通安裝凸緣 ^伸向燃料槽了内。又’於安裝凸緣15之下面設置具備浮 筒20之液面感測器21。 於底盤24之下面配置前後的橫樑25、％，藉由將兩端以 螺絲27·、..固定於橫樑25、26之複數條（例如2條）金屬帶28、 28 ’掛過槽本體u之下壁13之外面，將槽本體“固定於底 盤Μ之下面。此時，槽本體丨〗之上壁12之外面與底盤24之 下面之間配置有複數個(於實施例為4個）緩衝橡膠23.·.， 猎由該等振橡膠墊23··.，防止因槽本體U内之燃料之波動 之振動或噪音傳到車體。 %之^二見圖3〜圖5可知，由平面所視為矩形狀之一體成 衝橡膠23 ’在與底盤24接觸之面（參見圖4)及與槽本 102195.doc 1269723 體11接觸之面（參見圖5)形成有複數突起。 由圖3〜圖4可知，與緩衝橡膠23接觸底盤^之面，向緩 衝橡膠23之短邊方向配置3排，由平坦的底面29之突出高 度最高的第1突起30…、突出高度為第2高的第2突起31一 及突出高度最低的第3突起32···，於各排配置一對第ι突起 30、30於長邊方向兩端，於其内側配置一對第3突起^、 32，於其内側配置丨個第2突起31。於各個第2圖起3ι之頂 部，形成有延向緩衝橡膠23之長邊方向之溝3七。 _ 由圖3〜圖5可知，緩衝橡膠23與槽本體叫觸之面，於 緩衝橡膠23之短邊方向配置3排，由平坦的底面33之突出 高度相等的第1突起34…及第2突起35…，於各排配置有向 緩衝橡膠23之長邊方向兩端之一對第i突起34、34，於其 内側配置1個第2突起。 然後’以金屬帶28、28將燃料槽T之槽本體11向底盤24 之下面押付固定時，各緩衝橡膠23的一邊的面（參見圖5)抵 φ接槽本體11 ’另一面（參見圖4)抵接底盤24。然後由於以金 屬帶28、28的張力將槽本體η向底盤24施力，故各緩衝橡 膠23爽在槽本體n及底盤24之間被壓縮。此時，當緩衝橡 膠23所受的壓縮負荷不足則無法將槽本體丨丨確實地支持於 底盤24 ’相反的緩衝橡膠承受過度的壓縮負荷則防振功能 降低而噪音或振動容易傳到車體，因此需要將該壓縮負荷 調整在下線值與上限值之間。 圖6所示圖表係，以缓衝橡膠之屋縮量為橫軸，缓衝橡 膠之壓縮負荷為縱軸者，為使之兩立槽本體丨丨確實的支持 102195.doc 1269723 及防振功能’需要將壓縮負荷調整在下限值與上限值之 間。貫線是本實施例之特性線’由原點之A點至b點為緩 衝橡膠23面對底盤24之面之第1突起30···及第2突起3丨··被 壓縮之狀態，B點至C點為第1突起30···、第2突起3丨···及第 3犬起32…被壓I®之狀悲’ c點以右是除了第1突起w…、 第2突起31…及第3突起32···加上第1突起34···及第2突起 35…全部被壓縮之狀態。如此地，越多的突起3〇…、[Technical Field] The present invention relates to an anti-vibration support structure for a fuel tank for a vehicle interposed between a fuel tank and a vehicle body. [Prior Art] When the fuel tank of the Ία car is attached to the vehicle body via a screw or a metal belt, Patent Document 1 and Patent Document 2 below are known in the art because the surface of the groove body abuts against the vehicle body. The part is in the anti-vibration rubber, so that the noise or vibration generated by the fluctuation of the fuel in the tank body is difficult to pass to the vehicle body. However, since the above-mentioned prior art cushion rubber is composed of a plate-shaped rubber having a certain thickness, it is difficult to exhibit a sufficient vibration-proof function. Therefore, it is known that the cross section of the cushion rubber is a wave shape or a U-shape, and the projection portion abuts against the fuel tank to improve the vibration-proof function. [Patent Document 1] JP-A-6-106999 (Patent Document 2) Japanese Laid-Open Patent Publication No. Hei No. 5-89060--------------------------------------------------------------------------------------------------------------------------------------------------------------- The profiled section is difficult to coexist in a proper manner in which the vehicle body firmly holds the retaining function of the slot body and ensures that the noise or vibration of the slot body is hard to be transmitted to the vehicle body. The present invention has been made in view of the above-mentioned circumstances in which the cushion rubber between the fuel tank and the vehicle body coexists. The object of the present invention is to provide an anti-vibration support structure for a fuel tank of a vehicle W2195.doc 1269723, which is characterized in that the load-holding and anti-vibration functions are properly provided to achieve the above object. The rubber is interposed between the groove body and the vehicle body, and forms a plurality of protrusions having different protrusion heights on the surface of the cushion rubber contacting the vehicle body. According to the invention of the claim 2, the anti-vibration support structure of the fuel tank for a vehicle is proposed, and the structure of the cushion rubber is in contact with the surface of the body of the vehicle, in addition to the structure of the pot and the main body of the seventh The material of the surface contacting the groove body is hard. Further, according to the invention of the third aspect of the invention, there is proposed an anti-vibration support structure for a fuel tank for a vehicle which, in addition to the configuration of the claim 1 or 2, inclines the outer surface of the projection located at the outermost side of the cushion rubber inward. Further, the chassis 24 of the embodiment corresponds to the vehicle body of the present invention, and the first and third largest 30, 31, and 32 of the embodiment correspond to the protrusion of the present invention, and 32 〇 according to the structure of the first item, Buffer between the groove body and the vehicle body: glue = the surface of the body of the car, forming a plurality of protrusions with different protrusion heights, so the compression amount of the protrusions can be changed according to the degree of the big and the large, and the groove body can be ensured φ 丨 The holding function of the car body ensures that the noise or vibration of the groove body is prevented from being transmitted to the anti-vibration function of the vehicle body. According to the structure of the request 2, the buffer rubber is in contact with the surface of the car body. The material of the surface of the main body is hard, so that the soft trowel of the cushion rubber contacts the groove body, and the noise or vibration from the groove body can be more effectively blocked from being transmitted to the vehicle body. The outer side of the outermost protrusion of the cushion rubber is inclined inward, so that the protrusion can be prevented from being negatively reflected from the slot-spoon and the support of the cushion rubber to the groove body is more reliable. 102195.doc 1269723 】 Hereinafter, the present invention will be The embodiment of the present invention will be described with reference to the drawings. Fig. 1 to Fig. 6 are views showing a first embodiment of the present invention, and Fig. 2 is a perspective view of a fuel tank for a vehicle, and Fig. 2 is a 2-FIG. 2 is a cross-sectional view, FIG. 3 is an enlarged view of three parts of FIG. 2, FIG. 4 is a perspective view of the cushion rubber viewed from the chassis side, and FIG. 5 is a perspective view of the cushion rubber viewed from the side of the groove body, and FIG. 7 is a perspective view. A graph showing the relationship between the amount of compression of the rubber and the compression load. As shown in Fig. 1 and Fig. 2, the groove body U of the fuel tank T for a vehicle integrally formed of synthetic resin is freely fitted to the opening 14 formed in the upper wall 12 thereof. The fuel pumping unit 17 is supported by the bracket i6 under the mounting flange i5, and the fuel supply pipe 18 extending from the fuel pumping unit 17 passes through the mounting flange and connects the engine (not shown). The oil return pipe 19 of the engine extends through the mounting flange and extends into the fuel tank. Further, a liquid level sensor 21 having a pontoon 20 is disposed below the mounting flange 15. The front and rear beams 25, % are disposed under the chassis 24. By fixing the ends to the plurality of beams 25, 26 with screws 27·, .. Out (e.g., two) of the metal strip 28, 28 'hung over the wall 13 below the groove u body, the body of the groove "is fixed below the bottom of the disc Μ. At this time, between the outer surface of the upper wall 12 of the groove body 与 and the lower surface of the chassis 24, a plurality of (four in the embodiment) buffer rubbers 23··., the hunting rubber pad 23··. The vibration or noise caused by the fluctuation of the fuel in the tank body U is prevented from being transmitted to the vehicle body. As shown in Fig. 3 to Fig. 5, it is known that the plane is regarded as a rectangular shape and the punching rubber 23' is in contact with the chassis 24 (see Fig. 4) and the surface of the slot 102195.doc 1269723. (See Fig. 5) A plurality of protrusions are formed. 3 to 4, the buffer rubber 23 is in contact with the surface of the chassis, and three rows are arranged in the short side direction of the cushion rubber 23, and the first projections 30 having the highest projection height from the flat bottom surface 29 are the first projections. The second protrusions 31 having the highest height and the third protrusions 32 having the lowest protrusion height are disposed on the both ends of the pair of first gradations 30 and 30 in the longitudinal direction, and a pair of third protrusions are disposed inside the second protrusions 32, a second protrusion 31 is disposed on the inner side. At the top of each of Fig. 2, a groove 3 extending toward the longitudinal direction of the cushion rubber 23 is formed. 3 to 5, the cushion rubber 23 and the groove body are in contact with each other, and three rows are arranged in the short side direction of the cushion rubber 23, and the first projections 34 and the second projections having the same height from the flat bottom surface 33 are provided. In the projections 35, one of the ends of the longitudinal direction of the cushion rubber 23 is placed on the i-th protrusions 34 and 34, and one second projection is disposed on the inner side. Then, when the groove main body 11 of the fuel tank T is fixed to the lower surface of the chassis 24 by the metal belts 28, 28, the surface of one side of each cushion rubber 23 (see Fig. 5) abuts against the other side of the groove body 11' (see the figure). 4) Abut the chassis 24. Then, since the groove body η is biased toward the chassis 24 by the tension of the metal tapes 28, 28, the buffer rubbers 23 are compressed between the groove body n and the chassis 24. At this time, when the compression load applied to the cushion rubber 23 is insufficient, the groove body 丨丨 cannot be reliably supported by the chassis 24'. The opposite cushion rubber is subjected to an excessive compression load, and the vibration-proof function is lowered, and noise or vibration is easily transmitted to the vehicle body. Therefore, it is necessary to adjust the compression load between the lower line value and the upper limit value. In the chart shown in Fig. 6, the damping rubber is reduced to the horizontal axis, and the compression load of the cushion rubber is the vertical axis. In order to ensure the support of the two vertical groove bodies, 102195.doc 1269723 and anti-vibration function are provided. 'The compression load needs to be adjusted between the lower limit and the upper limit. The traverse line is a state in which the characteristic line 'from the point A to the point b of the origin is the first protrusion 30··· and the second protrusion 3 丨·· is compressed by the buffer rubber 23 facing the surface of the chassis 24, From point B to point C, the first protrusion 30···, the second protrusion 3丨··· and the third dog 32... are pressed by I®, and the c point is right except for the first protrusion w... The projections 31 and the third projections 32 are filled in a state in which the first projections 34 and the second projections 35 are all compressed. In this way, the more protrusions 3〇...

31…、32···、34···、35…被壓縮則，緩衝橡膠23之彈性係 數增加’以貫現表示之特性線向右上方斜率變高。 於實施例，以金屬帶28、28固定槽本體丨丨時，使施加於 緩衝橡膠23之壓縮負荷成前述下限值的方式，及對緩衝橡 膠23施以B點之稍微右側之壓縮量。由此狀態對槽本體u 施加向上的負荷即使緩衝橡膠23之壓縮量增加，只要該壓 縮量係由B點正後至C點正後之有效行程之範圍則，施加 於緩衝橡膠23之壓縮負荷不會超過前述上限值。31..., 32···, 34···, 35... When the compression is performed, the elastic modulus of the cushion rubber 23 is increased by 'the characteristic line shown in the center becomes higher in the upper right direction. In the embodiment, when the groove body 丨丨 is fixed by the metal bands 28 and 28, the compression load applied to the cushion rubber 23 is set to the lower limit value, and the buffer rubber 23 is applied with a slightly right compression amount of the B point. In this state, an upward load is applied to the groove body u even if the compression amount of the cushion rubber 23 is increased, as long as the compression amount is in the range of the effective stroke from the positive point B to the point C, the compression load applied to the cushion rubber 23 It does not exceed the aforementioned upper limit.

另方面，圖6之圖表之虛線係具有波型剖面之先前之 線向右上之斜率高使有效行程之範圍大幅縮小。實施例之 有效打程較先前例之有效行程寬係因為，高度相異之第1 突起30···、第2突起3卜、第3突起32••第i突起^…、第2 突起35…以時間差受到壓縮，藉此使實施例之緩衝橡膠 23，柔軟地支持槽本體11，而可提高防振效果。 又藉由於第2突起31.·.之先端形成溝…，當第2突起 3卜抵接槽本體U而被壓縮時，可防止彈性係數急劇地增 102195.doc -10- 1269723 加使實施例之特性線（參見實線）之向右上的斜率更佳趨 緩。 其次，以圖7說明本發明之第2實施例。 第2實施例係，將緩衝橡膠23之槽本體側部分23A，及車 體側部分23B，分別以相異特性之橡膠雙色形成者。_具體 而a ’將車體側部分23B以相對較硬質之材料構成，槽本 體側部分23A以相對較軟質之材料構成，可邊保持槽本體 π之支持力，更有效果地遮斷由槽本體η傳至底盤24之噪 音或振動。 其次，基於圖8說明本發明之第3實施例。 第3實施例係第丨實施例之變形例，只是將位於緩衝橡膠 23之長邊方向兩端之第1突起3〇…之外側面3〇a…向内傾斜 角度α者。藉此，防止押付於槽本體n之第1突起3〇 ••向外 側倒’使槽本體11之支持更確實者。又，藉由使第1突起 30…之外側面30a…傾斜，第i突起3〇…之剖面積將變小而 φ 變的容易被壓縮，故可增加緩衝橡膠23之壓縮量而吸收槽 本體11之尺寸之離散或搭載位置之離散，可更佳確實地支 持槽本體11。 再者’不僅使第1突起30…之外側面30a···傾斜，藉由預 先使第2犬起3 1向容易被外力弄倒的方向的相反方向傾 斜，可防止其傾倒。 以上，說明了本發明之實施例，惟本發明在不脫逸其要 旨之範圍内可進行各種設計變更。 例如’於實施例係槽本體11經由緩衝橡膠23抵接之車體 102195.doc • 11 · 1269723 亦可為車體框或金 為底盤24，車體24並非限定於底盤u， 屬帶28。 但亦可 又槽本體11雖以容易成形之合成樹脂製為佳 為金屬製。 【圖式簡單說明】 圖1係關於第1實施例之車輛用燃料槽的立體圖。 圖2係圖1之2-2線剖面圖。 圖3係圖2之3部放大圖。On the other hand, the dotted line of the graph of Fig. 6 has a slope of the upper line of the waveform profile to the upper right, and the range of the effective stroke is greatly reduced. The effective stroke of the embodiment is wider than the effective stroke of the previous example because the first protrusions 30···, the second protrusions 3b, the third protrusions 32••the i-th protrusions..., and the second protrusions 35 are different in height. The compression is performed with a time difference, whereby the cushion rubber 23 of the embodiment is softly supported by the groove body 11, and the vibration-proof effect can be improved. Further, by forming the groove at the tip end of the second projection 31.., when the second projection 3 is compressed against the groove main body U, the elastic modulus can be prevented from increasing sharply. 102195.doc -10- 1269723 The slope of the characteristic line (see solid line) to the upper right is better and slower. Next, a second embodiment of the present invention will be described with reference to Fig. 7 . In the second embodiment, the groove main body side portion 23A of the cushion rubber 23 and the vehicle body side portion 23B are formed by two-color rubber of different characteristics. Specifically, a 'the body side portion 23B is made of a relatively hard material, and the groove body side portion 23A is made of a relatively soft material, which can hold the groove body π with a supporting force, and more effectively interrupts the groove. The noise or vibration transmitted by the body η to the chassis 24. Next, a third embodiment of the present invention will be described based on Fig. 8 . The third embodiment is a modification of the second embodiment except that the outer side faces 3〇a of the first projections 3... at the both ends in the longitudinal direction of the cushion rubber 23 are inclined inward by an angle α. Thereby, it is prevented that the first projections 3 of the groove main body n are inverted from the outer side, so that the support of the groove main body 11 is more accurate. Further, by tilting the outer surface 30a of the first projections 30, the cross-sectional area of the i-th projections 3〇 is reduced, and the φ is easily compressed. Therefore, the compression amount of the cushion rubber 23 can be increased to absorb the groove body. The dispersion of the size of 11 or the dispersion of the mounting position can more reliably support the groove body 11. Further, not only the outer side surface 30a of the first projection 30 is tilted, but the second dog 3 is tilted in the opposite direction to the direction in which it is easily collapsed by the external force, so that it can be prevented from falling. The embodiments of the present invention have been described above, but the present invention can be modified in various ways without departing from the scope of the invention. For example, the vehicle body 102195.doc • 11 · 1269723 which is abutted by the cushion rubber 23 in the embodiment may be a vehicle body frame or a gold chassis 24, and the vehicle body 24 is not limited to the chassis u, the belt 28. However, the groove body 11 may preferably be made of a synthetic resin which is easy to form. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a fuel tank for a vehicle according to a first embodiment. Figure 2 is a cross-sectional view taken along line 2-2 of Figure 1. Figure 3 is an enlarged view of the three parts of Figure 2.

圖4係將緩衝橡膠由底盤側所視之立體圖。 圖5係將緩衝橡膠由槽本體側所視之立體圖。 圖6係表示緩衝橡膠之壓縮量與壓縮負荷之關係之圖 圖7係關於第2實施例、對應前述圖3之圖。 圖8係關於第2實施例、對應前述圖3之圖。 【主要元件符號說明】 11 槽本體 23 緩衝橡膠 24 底盤（車體） 29，33平坦的底部 30 第1突起（突起） 31 第2突起（突起） 31a 外側面 32 第3突起（突起） 34 第1突起 35 第2突起 102195.doc -12-Figure 4 is a perspective view of the cushion rubber as viewed from the side of the chassis. Fig. 5 is a perspective view of the cushion rubber as viewed from the side of the groove body. Fig. 6 is a view showing the relationship between the compression amount of the cushion rubber and the compression load. Fig. 7 is a view corresponding to the second embodiment and corresponding to Fig. 3 described above. Fig. 8 is a view corresponding to the second embodiment and corresponding to Fig. 3 described above. [Description of main components] 11 Slot body 23 Buffer rubber 24 Chassis (body) 29, 33 flat bottom 30 1st protrusion (protrusion) 31 2nd protrusion (protrusion) 31a Outer side 32 3rd protrusion (protrusion) 34 1 protrusion 35 second protrusion 102195.doc -12-

Claims (1)

1269723 十、申請專利範圍： 1 ·種車輛用燃料槽之防振支持構造，其特徵係使緩衝橡 膠（23)介於槽本體（11)及車體（24)間者， 且在緩衝橡膠（23)接觸車體（24)之面，形成突出高度 相異之複數突起（30、31、32)。 2.如請求項1之車輛用燃料槽之防振支持構造，其中緩衝 橡膠（23)之接觸車體（24)之面之材質較接觸槽本體（u)之 面之材質為硬質。 籲3·如請求項1或2之車輛用燃料槽之防振支持構造，其中使 位於缓衝橡膠（23)之最外側之突起（30)之外侧面（3〇a)向 内傾斜。 102195.doc1269723 X. Patent application scope: 1 · Anti-vibration support structure for fuel tanks for vehicles, characterized in that the cushion rubber (23) is interposed between the tank body (11) and the vehicle body (24), and in the cushion rubber ( 23) Touching the surface of the vehicle body (24) to form a plurality of protrusions (30, 31, 32) having different protrusion heights. 2. The anti-vibration support structure for a fuel tank for a vehicle according to claim 1, wherein the material of the surface of the cushion rubber (23) contacting the vehicle body (24) is harder than the material of the surface contacting the groove body (u). 3. The anti-vibration support structure for a fuel tank for a vehicle according to claim 1 or 2, wherein the outer side surface (3〇a) of the outermost projection (30) located at the outer side of the cushion rubber (23) is inclined inward. 102195.doc
TW094118622A 2004-06-25 2005-06-06 Vibration isolation support structure of fuel tank for vehicle TWI269723B (en)

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JP4690666B2 (en) 2011-06-01
DE102005027936B4 (en) 2009-12-17
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CN1326720C (en) 2007-07-18
GB2415479A (en) 2005-12-28

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