JP3075959B2 - Truck bed lining structure - Google Patents
Truck bed lining structureInfo
- Publication number
- JP3075959B2 JP3075959B2 JP07161473A JP16147395A JP3075959B2 JP 3075959 B2 JP3075959 B2 JP 3075959B2 JP 07161473 A JP07161473 A JP 07161473A JP 16147395 A JP16147395 A JP 16147395A JP 3075959 B2 JP3075959 B2 JP 3075959B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- fiber sheet
- rubber liner
- liner
- floor plate
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】この発明は、トラックの荷台、特
に原石運搬用の大型ダンプトラックの荷台をゴムでライ
ニングした構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which a carrier of a truck, particularly a carrier of a large dump truck for transporting rough stones, is lined with rubber.
【０００２】[0002]
【従来の技術】原石運搬用大型トラックの荷台には、大
きい原石を積み込む際の衝撃を緩和するために厚さ数セ
ンチメートルの厚いゴムライナーが敷設されている。図
１は、上記荷台１０の一例を示し、１１は荷台の床板で
あり、その前端（ただし、図の左上方を前方とする）に
前壁１２が、左右に側壁１３がそれぞれ設けられ、左右
の側壁１３の後端間が開放されて原石の排出口を形成
し、前壁１２の前方に運転台（図示されていない）が設
けられている。なお、上記の荷台１０は、後端部を支点
にして前端を昇降させるように形成されるが、荷下ろし
時以外は前下がりに傾斜した状態に固定される。2. Description of the Related Art A large rubber liner having a thickness of several centimeters is laid on the bed of a large truck for transporting rough stones in order to reduce the impact of loading large rough stones. FIG. 1 shows an example of the above-mentioned loading platform 10, wherein 11 is a floor board of the loading platform, and a front wall 12 is provided at a front end (however, the upper left of the drawing is a front side), and side walls 13 are provided at left and right. The rear end of the side wall 13 is opened to form a discharge port for the rough stone, and a driver's cab (not shown) is provided in front of the front wall 12. In addition, the above-mentioned loading platform 10 is formed so as to raise and lower the front end with the rear end as a fulcrum, but is fixed in a state inclined forward and downward except when unloading.
【０００３】上記床板１１の前縁、側縁および後縁に沿
ってそれぞれ棒状の前部ストッパー１４、側部ストッパ
ー１５および後部ストッパー１６が固定され、これらの
ストッパー１４、１５、１６からなる方形枠の内側前部
に小型ゴムライナー２１が敷設され、その後方に上記小
型ゴムライナー２１の約２倍の大きさの大型ゴムライナ
ー２２が敷設されている。これらのゴムライナー２１、
２２は、厚いゴム板の下面付近に鉄板製の補強板を埋設
して作られ、上記荷台１０の床板１１にボルトで固定さ
れていた。A bar-shaped front stopper 14, a side stopper 15 and a rear stopper 16 are fixed along the front edge, the side edge and the rear edge of the floor plate 11, respectively, and a rectangular frame comprising these stoppers 14, 15, 16 is fixed. A small rubber liner 21 is laid at the front inside, and a large rubber liner 22 about twice as large as the small rubber liner 21 is laid behind it. These rubber liners 21,
22 is made by embedding a reinforcing plate made of an iron plate near the lower surface of a thick rubber plate, and is fixed to the floor plate 11 of the carrier 10 with bolts.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、原石運
搬用大型トラックにおいては、床板１１の下面前部およ
び左右両側部に沿ってＵ字形に排気ダクトを這わせてい
たので、エンジンの排気ガスで荷台１０が１３０℃以上
に加熱され、そのため上記ゴムライナー２１、２２の下
側ゴム層が老化して剥離し易くなるという問題があっ
た。そこで、図４に示すように、ゴムライナー２１（２
２）の補強板２３に多数の孔２３ａを設け、この孔２３
ａで上下のゴム層を連結することが試みられた。しか
し、この場合も、ゴムライナー２１（２２）の補強板２
３よりも下の下側ゴム層が上記排気ガスで加熱されて老
化するため、剥離を防ぐことができなかった。なお、２
４は床板１１に溶接で固定した皿頭ボルト、２５はワッ
シャ、２６はナットである。また、２１ａは上記のワッ
シャ２５およびナット２６を収容するためにゴムライナ
ー２１に設けた座ぐり孔、２７はゴム栓である。However, in a large truck for transporting rough stones, the exhaust duct runs in a U-shape along the front lower surface of the floor plate 11 and both right and left sides. 10 was heated to 130 ° C. or higher, and there was a problem that the lower rubber layers of the rubber liners 21 and 22 were aged and easily peeled off. Therefore, as shown in FIG. 4, the rubber liner 21 (2
2) A large number of holes 23a are provided in the reinforcing plate 23,
An attempt was made to connect the upper and lower rubber layers with a. However, also in this case, the reinforcing plate 2 of the rubber liner 21 (22) is used.
Since the lower rubber layer below 3 was heated by the exhaust gas and aged, the peeling could not be prevented. In addition, 2
4 is a countersunk bolt fixed to the floor plate 11 by welding, 25 is a washer, and 26 is a nut. 21a is a counterbore provided in the rubber liner 21 to accommodate the washer 25 and the nut 26, and 27 is a rubber stopper.
【０００５】この発明は、荷台自体の構造やその下面に
配設された排気パイプの配置および構造を変えることな
く、上記排気パイプからの伝熱によるゴムライナーの熱
老化を軽減してゴムライナーの下側ゴム層が補強板から
剥離するのを防止するものである。The present invention reduces the heat aging of the rubber liner due to the heat transfer from the exhaust pipe without changing the structure of the carrier itself and the arrangement and structure of the exhaust pipe provided on the lower surface thereof. This is to prevent the lower rubber layer from peeling off from the reinforcing plate.
【０００６】[0006]
【課題を解決するための手段】この発明は、方形のゴム
板の下面付近に金属製補強板を埋設してなる多数枚のゴ
ムライナーをトラックの荷台の床板上に敷き詰め、ボル
ト締めで固定したライニング構造において、上記ゴムラ
イナーと荷台の床板との間に繊維シートを介在させるこ
とを特徴とする。According to the present invention, a large number of rubber liners, each having a metal reinforcing plate embedded near the lower surface of a rectangular rubber plate, are spread over a floor plate of a truck bed and fixed by bolting. In the lining structure, a fiber sheet is interposed between the rubber liner and a floor plate of a carrier.
【０００７】上記のゴムライナーは、従来と同様に、Ｓ
ＢＲ、ＢＲおよびＮＲ等の耐摩耗性ゴムからなる厚さ数
十ミリメートルのゴム板の下面付近に鉄板製の補強板を
埋設し、四隅を含む周辺複数箇所にボルト孔を設けたも
のであり、該補強板の上面および下面にそれぞれ補強板
よりも広い面積の厚い上側ゴム層と薄い下側ゴム層とを
重ね、加硫接着により一体化して製造される。なお、上
側ゴム層と下側ゴム層とは、補強板の周縁に沿って互い
に連結されるが、補強板に多数の孔をあらかじめ穿孔
し、この孔と上記の周縁の両方で上側ゴム層および下側
ゴム層を連結することができる。The above rubber liner is made of S
BR, BR and NR, a reinforcing plate made of an iron plate is buried near the lower surface of a rubber plate having a thickness of several tens of millimeters made of wear-resistant rubber such as abrasion-resistant rubber, and bolt holes are provided at a plurality of locations including four corners. On the upper and lower surfaces of the reinforcing plate, a thicker upper rubber layer and a thinner lower rubber layer each having a larger area than the reinforcing plate are superimposed and integrated by vulcanization bonding. The upper rubber layer and the lower rubber layer are connected to each other along the peripheral edge of the reinforcing plate.However, a large number of holes are pre-drilled in the reinforcing plate, and the upper rubber layer and The lower rubber layer can be connected.
【０００８】上記の繊維シートは、融点が２００℃以上
の繊維、例えば綿、ナイロン、ポリエステル等からなる
不織布、織物または編物のいずれでもよく、またこれら
２以上を積層してなる複合体であってもよく、複合体と
しては不織布の片面または両面に織物または編物を重ね
たり、織物または編物の両面に不織布を重ねたりしたも
のが例示される。上記の不織布は、抄紙型、接着型、機
械接合型および紡糸型のいずれでもよいが、耐熱性の点
でニードルパンチ法およびステッチ法等の機械接合型が
好ましい。そして、上記繊維の繊度は２〜３０デニール
が好ましい。また、目付量は１０００〜３０００ｇ／ｍ
2 、特に１５００〜２５００ｇ／ｍ2 が好ましい。The fiber sheet may be a fiber having a melting point of 200 ° C. or more, such as a nonwoven fabric, a woven fabric or a knitted fabric made of cotton, nylon, polyester, or the like, or a composite material obtained by laminating two or more of these. Examples of the composite include a composite in which a woven or knitted fabric is laminated on one or both sides of a nonwoven fabric, or a nonwoven fabric is laminated on both sides of a woven or knitted fabric. The above nonwoven fabric may be any of a papermaking type, an adhesive type, a mechanical bonding type and a spinning type, but a mechanical bonding type such as a needle punch method and a stitch method is preferable in terms of heat resistance. The fineness of the fiber is preferably 2 to 30 denier. The basis weight is 1000 to 3000 g / m.
2 , particularly preferably 1500 to 2500 g / m 2 .
【０００９】上記の繊維シートは、任意の大きさに作っ
たものをトラックの荷台の床板全面にあらかじめ敷き詰
め、しかるのちゴムライナーを重ねてもよく、またゴム
ライナーと同じ形に裁断し、これをゴムライナーの裏面
にエポキシ系、ウレタン系、ゴム系等の任意の接着剤も
しくは粘着テープで接着、またはタッカー等で固定し、
ゴムライナーの配列と同時に敷くようにしてもよく、後
者の場合は荷台上での作業工数が減少する。The above-mentioned fiber sheet is arbitrarily sized and laid in advance on the entire floorboard of a truck bed, and may be overlaid with a rubber liner or cut into the same shape as the rubber liner. Adhere to the back of the rubber liner with any adhesive such as epoxy, urethane, rubber or adhesive tape, or fix it with tucker, etc.
It may be laid at the same time as the arrangement of the rubber liners. In the latter case, the number of work steps on the carrier is reduced.
【００１０】荷台の床板と上記繊維シートとの間に織物
構造または網構造の金網を介在させてゴムライナーの下
側空間を広げたり、繊維シート内の空隙のつぶれを防い
だりして断熱性を高めることができる。この金網は、ゴ
ムライナーの下面に繊維シートと共に一体化してもよい
が、金網のみを床板上に敷いて溶接等で固定し、しかる
のち繊維シートを介してゴムライナーを重ねることによ
り、ゴムライナーの取付け状態が安定し、かつ金網の半
永久的使用が可能になる。この金網を構成するワイヤの
直径は、３〜８mmが好ましく、孔目の大きさはゴムライ
ナー固定用ボルトを挿入できる程度、または挿入できな
くてもワイヤを曲げたり、一部を切断除去して上記ボル
トを挿入できる程度に孔目を広げることができるもので
あればよく、２５〜１００mmが好ましい。なお、孔目の
形状は角孔または長孔のいずれでもよく、また角孔と長
孔を混合してもよい。[0010] A wire mesh having a woven structure or a net structure is interposed between the floor plate of the carrier and the fiber sheet to widen the space below the rubber liner, or to prevent collapse of the voids in the fiber sheet to thereby provide heat insulation. Can be enhanced. This wire mesh may be integrated with the fiber sheet on the lower surface of the rubber liner, but only the wire mesh is laid on the floor plate and fixed by welding or the like, and then the rubber liner is laminated via the fiber sheet to form a rubber liner. The mounting condition is stable, and the wire mesh can be used semi-permanently. The diameter of the wire constituting this wire mesh is preferably 3 to 8 mm, and the size of the hole is such that the rubber liner fixing bolt can be inserted, or even if it cannot be inserted, the wire is bent or partly cut and removed. Anything that can widen the holes so that the bolts can be inserted may be used, and preferably 25 to 100 mm. The shape of the holes may be either a square hole or a long hole, and the square hole and the long hole may be mixed.
【００１１】上記の補強板および下側ゴム層には、床板
に固定されたボルトを挿通するためのボルト孔が設けら
れ、上側ゴム層には、上記ボルトの先端に嵌めるナット
を収容するための座ぐり孔が設けられる。この座ぐり孔
は、上記ナットの締結後にゴム栓で埋められるが、上記
補強板の上面に上記の座ぐり孔を囲む金属パイプを、そ
の上縁が該座ぐり孔に挿入されるボルトの先端よりも高
くなるように固着し、原石積み込み時の衝撃から上記ボ
ルトの先端を保護することができる。[0011] The reinforcing plate and the lower rubber layer are provided with bolt holes for inserting bolts fixed to the floor plate, and the upper rubber layer is for accommodating a nut fitted to the tip of the bolt. A counterbore is provided. This counterbore is filled with a rubber plug after fastening the nut. A metal pipe surrounding the counterbore is provided on the upper surface of the reinforcing plate, and the top edge of a bolt whose upper edge is inserted into the counterbore is provided. Thus, the tip of the bolt can be protected from the impact of loading the ore.
【００１２】[0012]
【作用】荷台の床板下の排気ダクトから床板を介してゴ
ムライナーに向かう熱の伝達が床板とゴムライナーとの
間に介在する多孔質の繊維シートによって緩和される。
したがって、繊維シートが存在しない場合に比してゴム
ライナー裏面の温度が低下し、上記繊維シートの厚さま
たは目付量を適当に設定することにより、ゴムライナー
裏面の熱老化が防止される。また、上記繊維シートの下
に金網を挟むことにより、断熱性が更に向上し、ゴムラ
イナーの温度が一層低下する。The transfer of heat from the exhaust duct below the floor plate of the carrier to the rubber liner via the floor plate is mitigated by the porous fiber sheet interposed between the floor plate and the rubber liner.
Accordingly, the temperature of the back surface of the rubber liner is lower than when no fiber sheet is present, and by appropriately setting the thickness or the basis weight of the fiber sheet, thermal aging of the back surface of the rubber liner is prevented. Further, by interposing a wire mesh under the fiber sheet, the heat insulating property is further improved, and the temperature of the rubber liner is further reduced.
【００１３】ただし、繊維シートを構成する繊維の融点
が２００℃未満の場合は、使用中に繊維が軟化したり溶
融したりするため、繊維間の空隙がつぶれて断熱性が失
われる。また、繊維シートの目付量が１０００ｇ／ｍ2
未満の場合は、断熱性が不足してゴムライナー裏面の温
度が充分に低下せず、反対に３０００ｇ／ｍ2 を超えた
場合は、コストが嵩み、経済的でない。However, if the melting point of the fibers constituting the fiber sheet is less than 200 ° C., the fibers soften or melt during use, so that the gaps between the fibers are crushed and the heat insulating property is lost. Further, the basis weight of the fiber sheet is 1000 g / m 2.
If it is less than 3, the heat insulating property is insufficient and the temperature on the back surface of the rubber liner is not sufficiently lowered, and if it exceeds 3000 g / m 2 , the cost increases and it is not economical.
【００１４】[0014]
【実施例】図２に示すゴムライナー２１は、図１に示す
荷台１０の前部に配列した小型のゴムライナー２１の前
後方向の切断面に沿った縦断面図である。図２におい
て、ゴムライナー２１は、ＳＢＲ、ＢＲ、ＮＲ等の耐摩
耗性ゴムで方形の板状に成形され、その下面付近に鉄板
製の補強板２３が埋設され、加硫接着によって一体化さ
れている。この補強板２３の四隅にはボルト孔２３ｂが
穿孔され、この補強板２３の上のゴム層には上記ボルト
孔２３ｂよりも大きい座ぐり孔２１ａが、また下のゴム
層にはボルト孔２３ｂと同じ大きさのボルト孔２１ｂが
それぞれ従来と同様に設けられている。DESCRIPTION OF THE PREFERRED EMBODIMENTS A rubber liner 21 shown in FIG. 2 is a longitudinal cross-sectional view of a small rubber liner 21 arranged at the front of the carrier 10 shown in FIG. In FIG. 2, a rubber liner 21 is formed into a rectangular plate shape with wear-resistant rubber such as SBR, BR, and NR, and a reinforcing plate 23 made of an iron plate is buried near the lower surface thereof, and is integrated by vulcanization bonding. ing. Bolt holes 23b are drilled at four corners of the reinforcing plate 23, a counterbore hole 21a larger than the bolt hole 23b is formed in the rubber layer above the reinforcing plate 23, and a bolt hole 23b is formed in the lower rubber layer. Bolt holes 21b of the same size are provided as in the conventional case.
【００１５】この実施例では、上記補強板２３の上面に
鉄パイプ２８がボルト孔２１ｂと同心状に溶接により固
着される。この鉄パイプ２８の内径はゴム層の座ぐり孔
２１ａよりも大きく設定され、その高さは、ゴムライナ
ー２１を荷台の床板１１にボルト２４で固定した際に座
ぐり孔２１ａ内に進入するボルト２４の先端よりも高く
なる程度に設定される。そして、このゴムライナー２１
の下面に、ゴムライナー２１と同じ大きさの不織布（繊
維シート）３０が接着により固定される。In this embodiment, an iron pipe 28 is fixed to the upper surface of the reinforcing plate 23 by welding concentrically with the bolt hole 21b. The inner diameter of the iron pipe 28 is set to be larger than the counterbore hole 21a of the rubber layer, and the height of the iron pipe 28 is such that the bolt that enters the counterbore hole 21a when the rubber liner 21 is fixed to the floor plate 11 of the carrier with bolts 24. The height is set to be higher than the tip of 24. And this rubber liner 21
A non-woven fabric (fiber sheet) 30 having the same size as the rubber liner 21 is fixed to the lower surface of the rubber sheet by bonding.
【００１６】トラックの荷台１０の床板１１には、あら
かじめ多数本の皿頭ボルト２４が皿頭を下にして該皿頭
の部分を溶接することにより所定の間隔で固定される。
そして、上記の床板１１に上記のゴムライナー２１を、
そのボルト孔２１ｂ、２３ｂおよび座ぐり孔２１ａに上
記皿頭ボルト２４の軸部を挿入するようにして敷き詰
め、座ぐり孔２１ａに挿入したワッシャ２５およびナッ
ト２６を上記皿頭ボルト２４に嵌め、ナット２６を締付
けて上記ゴムライナー２１を固定し、しかるのち座ぐり
孔２１ａにゴム栓２７を充填する。なお、図１の大型の
ゴムライナー２２は、前後方向の長さが上記小型のゴム
ライナー２１の約２倍に設定され、左右の側縁の中間に
ボルト孔および座ぐり孔が設けられる以外は小型のゴム
ライナー２１と同様に作られ、床板１１上に上記同様に
固定される。A number of countersunk bolts 24 are fixed at predetermined intervals to the floor plate 11 of the truck bed 10 by welding the countersunk head with the countersunk down in advance.
Then, the rubber liner 21 is placed on the floor plate 11,
The shafts of the countersunk bolts 24 are inserted into the bolt holes 21b and 23b and the countersunk holes 21a, and the washers 25 and the nuts 26 inserted into the countersunk holes 21a are fitted to the countersunk bolts 24. The rubber liner 21 is fixed by tightening 26, and then a rubber stopper 27 is filled in the counterbore 21a. The large rubber liner 22 shown in FIG. 1 has a length in the front-rear direction that is about twice that of the small rubber liner 21 except that a bolt hole and a counterbore hole are provided between the left and right side edges. It is made similarly to the small rubber liner 21 and is fixed on the floorboard 11 in the same manner as described above.
【００１７】上記の小型ゴムライナー２１をＳＢＲから
なる耐摩耗性ゴムで厚さ１０５mm、幅５４０mm、長さ４
００mmに、また大型ゴムライナー２２を同じ耐摩耗性ゴ
ムで厚さ１０５mm、幅５４０mm、長さ７５０mmにそれぞ
れ製造した。ただし、それぞれの下面から高さ１０mmの
位置に厚さ４．５mmの鋼板からなる補強板２３を埋設
し、ゴムライナー２１、２２の各下面に６デニールのナ
イロン６６フィラメントからなるニードルパンチ式不織
布３０（目付量２０００ｇ／ｍ2 、厚さ１０mm）を接着
した。The small rubber liner 21 is made of abrasion-resistant rubber made of SBR and has a thickness of 105 mm, a width of 540 mm and a length of 4 mm.
A large rubber liner 22 was manufactured from the same wear-resistant rubber to a thickness of 105 mm, a width of 540 mm, and a length of 750 mm. However, a reinforcing plate 23 made of a steel plate having a thickness of 4.5 mm is buried at a height of 10 mm from each lower surface, and a needle-punched nonwoven fabric 30 made of 6 denier nylon 66 filament is provided on each lower surface of the rubber liners 21 and 22. (With a basis weight of 2000 g / m 2 and a thickness of 10 mm).
【００１８】上記第１実施例の不織布付きゴムライナー
２１、２２を原石運搬用大型ダンプトラックの荷台１０
の床板１１（幅２７４０mm、長さ３９４０mm）に、隣接
するゴムライナー間に隙間１０mmを設けて敷き詰めた。
荷台１０の床板１１の温度が１５０℃のとき、上記ゴム
ライナー２１の補強板２３の温度を測定したところ、１
００℃てあった。これに対し、上記第１実施例の不織布
３０を省略した比較例は、補強板２３の温度が１２０℃
であった。そして、比較例は、６０日間の使用でゴムラ
イナー２１の下側ゴム層に熱老化による剥離が発生した
のに対し、第１実施例は、１年後においても異常が認め
られなかった。The rubber liners 21 and 22 with the nonwoven fabric of the first embodiment are used as a carrier 10 for a large dump truck for transporting rough stones.
Was laid on the floorboard 11 (width 2740 mm, length 3940 mm) with a 10 mm gap between adjacent rubber liners.
When the temperature of the floor plate 11 of the carrier 10 was 150 ° C., the temperature of the reinforcing plate 23 of the rubber liner 21 was measured.
00 ° C. On the other hand, in the comparative example in which the nonwoven fabric 30 of the first embodiment was omitted, the temperature of the reinforcing plate 23 was 120 ° C.
Met. In the comparative example, peeling due to heat aging occurred in the lower rubber layer of the rubber liner 21 after use for 60 days, whereas in the first example, no abnormality was observed even after one year.
【００１９】図３は、第２実施例の断面図であり、この
第２実施例では、床板１１の全面に金網３１を敷き詰め
た後、この金網３１上に上記第１実施例のゴムライナー
２１、２２が敷き詰められ、しかるのち前記同様に固定
される。この金網３１として、線径５mmのステンレス鋼
ワイヤを経糸３２および緯糸３３とする平組織の目開き
４５mmのものを使用し、前記同様に床板１１を加熱した
ところ、上記補強板２３の温度は９０℃であった。FIG. 3 is a cross-sectional view of the second embodiment. In the second embodiment, after the wire mesh 31 is spread over the entire surface of the floor plate 11, the rubber liner 21 of the first embodiment is placed on the wire mesh 31. , 22 are laid down and then secured as before. As the wire mesh 31, a stainless steel wire having a wire diameter of 5 mm and a flat mesh opening of 45 mm having a warp 32 and a weft 33 was used, and the floor plate 11 was heated in the same manner as described above. ° C.
【００２０】[0020]
【発明の効果】請求項１に記載した発明は、方形のゴム
板の下面付近に金属製補強板を埋設してなる多数枚のゴ
ムライナーをトラックの荷台の床板上に敷き詰め、ボル
ト締めで固定したライニング構造において、上記ゴムラ
イナーと荷台の床板との間に繊維シートを介在させたも
のであるから、床板が下面の排気ダクトによって加熱さ
れた際、床板の熱が繊維シートの断熱性によってゴムラ
イナーに伝わり難くなり、該繊維シートが存在しない場
合に比べ、ゴムライナーの下面の温度およびゴムライナ
ー中の補強板の温度が低くなる。したがって、繊維シー
トの材質や目付量を適当に選択することにより、ゴムラ
イナーの熱老化を軽減し、補強板からゴム層が剥離する
のを防ぐことができる。According to the first aspect of the present invention, a large number of rubber liners, each having a metal reinforcing plate embedded near the lower surface of a rectangular rubber plate, are spread over a floor plate of a truck bed and fixed with bolts. In the lining structure, the fiber sheet is interposed between the rubber liner and the floor plate of the carrier, so that when the floor plate is heated by the exhaust duct on the lower surface, the heat of the floor plate is reduced by the heat insulating property of the fiber sheet. It becomes difficult to transmit to the liner, and the temperature of the lower surface of the rubber liner and the temperature of the reinforcing plate in the rubber liner are lower than when the fiber sheet is not present. Therefore, by appropriately selecting the material and the basis weight of the fiber sheet, the heat aging of the rubber liner can be reduced and the rubber layer can be prevented from peeling off from the reinforcing plate.
【００２１】請求項２に記載した発明は、請求項１に記
載した発明において、その繊維シートとして、融点２０
０℃以上の繊維からなる不織布、織物、編物等を単独
で、または２以上を積層した複合体を使用するものであ
るから、繊維間空隙が繊維の軟化や溶融でつぶれて断熱
性が低下することがなく、上記の剥離防止を一層効果的
に行うことができる。According to a second aspect of the present invention, in the first aspect, the fiber sheet has a melting point of 20%.
Since a nonwoven fabric, woven fabric, knitted fabric, or the like composed of fibers of 0 ° C. or more is used alone or a composite material in which two or more fibers are laminated, the inter-fiber voids are crushed by softening or melting of the fibers, and the heat insulating property is reduced. Therefore, the above-mentioned separation can be more effectively prevented.
【００２２】請求項３に記載した発明は、請求項１また
は２に記載した発明において、その繊維シートをゴムラ
イナーとほぼ同じ大きさに作り、ゴムライナーの裏面に
あらかじめ取付けたものであるから、ゴムライナーをト
ラックの荷台に取付ける際、繊維シートをゴムライナー
とは別に単独で敷く場合に比べ、その取付け工数を少な
くすることができ、また一部のゴムライナーを交換する
際、痛んだ繊維シートを同時に交換することができる。According to a third aspect of the present invention, in the first or second aspect of the present invention, the fiber sheet is made substantially the same size as the rubber liner and is attached in advance to the back surface of the rubber liner. When attaching a rubber liner to a truck bed, compared to laying the fiber sheet separately from the rubber liner, the number of installation steps can be reduced, and when replacing some rubber liners, the damaged fiber sheet Can be replaced at the same time.
【００２３】請求項４に記載した発明は、請求項１ない
し３のいずれかに記載した発明において、繊維シートと
荷台の床板との間に金網を介在させたものであるから、
荷台の床板とゴムライナーとの間の空間が一層広がって
断熱性が向上し、そのためゴムライナーの老化が更に軽
減される。According to a fourth aspect of the present invention, in the first aspect of the invention, a wire mesh is interposed between the fiber sheet and the floor plate of the cargo bed.
The space between the floor plate of the carrier and the rubber liner is further expanded, and the heat insulating property is improved, so that the aging of the rubber liner is further reduced.
【図１】原石運搬用大型ダンプトラックの荷台の斜視図
である。FIG. 1 is a perspective view of a bed of a large dump truck for transporting rough stones.
【図２】第１実施例の断面図である。FIG. 2 is a sectional view of the first embodiment.
【図３】第２実施例の断面図である。FIG. 3 is a sectional view of a second embodiment.
【図４】従来例の断面図である。FIG. 4 is a sectional view of a conventional example.
１０：荷台 １１：床板 １４、１５、１６：ストッパー ２１、２２：ゴムライナー ２１ａ：座ぐり孔 ２１ｂ：ボルト孔 ２３：補強板 ２３ｂ：ボルト孔 ２４：皿頭ボルト ２５：ワッシャ ２６：ナット ２７：ゴム栓 ２８：鉄パイプ ３０：繊維シート（不織布） ３１：金網 ３２：経糸 ３３：緯糸 10: bed 11: floor plate 14, 15, 16: stopper 21, 22: rubber liner 21a: counterbore hole 21b: bolt hole 23: reinforcing plate 23b: bolt hole 24: countersunk bolt 25: washer 26: nut 27: rubber Plug 28: Iron pipe 30: Fiber sheet (non-woven fabric) 31: Wire mesh 32: Warp 33: Weft
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭53−109225（ＪＰ，Ｕ) 実開 平１−144179（ＪＰ，Ｕ) 実開 昭56−16591（ＪＰ，Ｕ) 実開 昭50−113117（ＪＰ，Ｕ) 実開 昭52−130312（ＪＰ，Ｕ) 実開 昭57−191681（ＪＰ，Ｕ) 実開 昭60−163176（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B60R 13/01 B62D 33/023 B60P 7/16 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Open to the public Showa 53-109225 (JP, U) Open to the public Hei 1-144179 (JP, U) Open to the public Showa 56-16591 (JP, U) Open to the public Showa 50- 113117 (JP, U) Japanese Utility Model 52-130312 (JP, U) Japanese Utility Model Application 57-191681 (JP, U) Japanese Utility Model Application 60-163176 (JP, U) (58) Field surveyed (Int. 7 , DB name) B60R 13/01 B62D 33/023 B60P 7/16
Claims (4)
を埋設してなる多数枚のゴムライナーをトラックの荷台
の床板上に敷き詰め、ボルト締めで固定したライニング
構造において、上記ゴムライナーと荷台の床板との間に
繊維シートを介在させたことを特徴とするトラックの荷
台のライニング構造。1. A lining structure in which a large number of rubber liners each having a metal reinforcing plate embedded near a lower surface of a rectangular rubber plate are spread on a floor plate of a truck bed and fixed by bolts. A lining structure for a truck carrier, wherein a fiber sheet is interposed between the carrier and a floor plate.
らなる不織布、織物、編物またはこれらの２以上を積層
した複合体である請求項１記載のトラックの荷台のライ
ニング構造。2. The lining structure of a truck bed according to claim 1, wherein the fiber sheet is a non-woven fabric, a woven fabric, a knitted fabric or a composite material obtained by laminating two or more of these fibers having a melting point of 200 ° C. or higher.
きさに作られ、ゴムライナーの裏面にあらかじめ取付け
られている請求項１または２記載のトラックの荷台のラ
イニング構造。3. The lining structure of a truck bed according to claim 1, wherein the fiber sheet is made substantially the same size as the rubber liner, and is attached to the back surface of the rubber liner in advance.
目孔を有する金網を介在させた請求項１ないし３のいず
れかに記載されたトラックの荷台のライニング構造。4. The lining structure of a truck bed according to claim 1, wherein a wire mesh having a large number of holes is interposed between the fiber sheet and the floor plate of the bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07161473A JP3075959B2 (en) | 1995-06-05 | 1995-06-05 | Truck bed lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07161473A JP3075959B2 (en) | 1995-06-05 | 1995-06-05 | Truck bed lining structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08324463A JPH08324463A (en) | 1996-12-10 |
| JP3075959B2 true JP3075959B2 (en) | 2000-08-14 |
Family
ID=15735767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07161473A Expired - Fee Related JP3075959B2 (en) | 1995-06-05 | 1995-06-05 | Truck bed lining structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3075959B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3980044B1 (en) * | 2006-04-14 | 2007-09-19 | 篁博 長谷川 | Dump truck carrier |
| SE543212C2 (en) | 2018-12-12 | 2020-10-27 | Metso Sweden Ab | Truck bed |
| US11220300B2 (en) * | 2020-05-13 | 2022-01-11 | GM Global Technology Operations LLC | Attachment method for an automotive vehicle panel |
-
1995
- 1995-06-05 JP JP07161473A patent/JP3075959B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08324463A (en) | 1996-12-10 |
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