JP2545941Y2 - Bridge for vehicle - Google Patents
Bridge for vehicleInfo
- Publication number
- JP2545941Y2 JP2545941Y2 JP1990094947U JP9494790U JP2545941Y2 JP 2545941 Y2 JP2545941 Y2 JP 2545941Y2 JP 1990094947 U JP1990094947 U JP 1990094947U JP 9494790 U JP9494790 U JP 9494790U JP 2545941 Y2 JP2545941 Y2 JP 2545941Y2
- Authority
- JP
- Japan
- Prior art keywords
- bridge
- treads
- tread
- fixed
- vehicle
- 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 - Lifetime
Links
Landscapes
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案はアルミ合金製の車輌用ブリッジ、特にトラク
タやコンバイン等の農耕用車輌やブルトーザー等の建設
機械をトラックの荷台等へ積み込んだり、降したりする
際に使用するブリッジに関するものである。[Detailed description of the invention] [Industrial application field] The invention is intended for loading and unloading aluminum alloy vehicle bridges, especially agricultural vehicles such as tractors and combiners, and construction machines such as bulldozers on truck beds. Or a bridge used when doing so.
従来から上記ブリッジ材としてはアルミ押出型材を用
いたものが広く製造され、かつ使用されている。このよ
うにブリッジのフレーム材及び踏材をすべてアルミ合金
で形成すると、軽量で高強度のブリッジが得られる利点
がある。Conventionally, as the bridge material, a material using an extruded aluminum material has been widely manufactured and used. If the frame material and the tread material of the bridge are all made of an aluminum alloy, there is an advantage that a lightweight and high-strength bridge can be obtained.
このようなトラクタ等の農耕用車輌の積み降しを対象
とするブリッジは、第2図のように地面とトラック荷台
(8)との間に2本のブリッジ(9)をその対象とする
トラクタ等の車輪の幅だけ離して斜めに載架して使用す
るものであり、トラクタ等を積み込んだ後該ブリッジ
(9)は、軽量であるため簡単にトラック荷台(8)等
に収納することができるので積み込み作業が迅速かつ容
易に実施できる利点を有する。As shown in FIG. 2, a bridge for loading and unloading agricultural vehicles such as a tractor has two bridges (9) between the ground and a truck bed (8). The bridge (9) can be easily stored in the truck bed (8) after loading the tractor etc. because the bridge (9) is lightweight. This has the advantage that the loading operation can be performed quickly and easily.
ところが実際は第2図に示す従来のブリッジを用いた
場合、フレーム材(4)の全長にわたって固定した角形
踏材(3)のうちブリッジの下部即ち低所側の踏材
(3′)の2〜3本についてその断面の低所側の上面の
角(図中Bで示す)が破損し易く、またこれら踏材
(3′)のフレーム材(4)との溶接部が離れ易いとい
った現象が起きていた。この現象は特に荷台からトラク
タ等を降す際に顕著であった。Actually, however, when the conventional bridge shown in FIG. 2 is used, two of the square treads (3) fixed over the entire length of the frame member (4), the lower tread (3 ') of the tread (3'). With respect to the three pieces, the lower corner of the cross section (indicated by B in the figure) of the upper surface is easily broken, and the welded portion between the treads (3 ') and the frame (4) is easily separated. I was This phenomenon was particularly remarkable when the tractor or the like was lowered from the loading platform.
この原因は、トラクタのタイヤは、そのタイヤ面にゴ
ム突起が隔設されたハイラグタイヤを使用しているため
である。即ち例えば前輪を前側に位置させてブリッジ上
を降りる際に、該前輪が地面に着くと以後トラクタの車
体はブリッジと平行でなくなりある角度をもって後輪を
介してブリッジと接触することになる。従ってこの状態
でさらにトラクタが降りるとタイヤの突起であるラグが
踏板の低所側の角部分に強く当たり、または該角を強く
はじくなどの現象が生ずるためと判った。そしてこの現
象による踏板の破損は特により低所側の踏板で著しいも
のであった。このような不具合はゴム製のハイラグタイ
ヤを使用しているトラクタ等ばかりでなく、ゴム製のラ
グ付クローラーを使用しているコンバイン等でも同様に
発生するので問題であった。The reason for this is that the tire of the tractor uses a high lag tire having a rubber projection spaced on the tire surface. That is, for example, when the front wheel is positioned on the front side and descends on the bridge, when the front wheel reaches the ground, the vehicle body of the tractor is no longer parallel to the bridge and comes into contact with the bridge via the rear wheel at an angle. Therefore, it has been found that when the tractor further descends in this state, a lug, which is a projection of the tire, strongly hits a low-side corner portion of the tread plate, or a phenomenon such as strongly repelling the corner occurs. The breakage of the treads due to this phenomenon was particularly remarkable in the lower treads. Such a problem is a problem because it occurs not only in a tractor or the like using a rubber-made high lag tire but also in a combine or the like using a rubber-made crawler.
本考案はこれに鑑み検討の結果、上記の不具合のない
長寿命のブリッジを提供するものである。The present invention has been made in view of the above, and as a result, provides a long-life bridge free of the above-mentioned problems.
即ち本考案は、互いに平行なフレーム材の対向する側
壁面間に長手方向に所要間隔で踏材を固定してなり、上
記フレーム材の一端を高所に取付けて傾斜した状態で用
いるブリッジにおいて、上面が高所側のフラット部と低
所側の低所に向って下り勾配の傾斜部からなる踏材を少
なくとも2本以上をブリッジ下部に固定したことを特徴
とするものであり、そのような踏材は最下段から2段目
及び3段目に固定するとよい。That is, the present invention provides a bridge in which treads are fixed at required intervals in the longitudinal direction between opposing side walls of a frame member parallel to each other, and one end of the frame member is attached to a high place and used in a tilted state. It is characterized in that at least two or more treads having an upper surface having a flat part on a high place side and a slope part having a downward slope toward a low place on a low place side are fixed to a bridge lower part. The treads may be fixed to the second and third steps from the lowest step.
このように踏材の上面に高所側のフラット部との低所
側の低所に向って下り勾配の傾斜部を設けたのは、積み
降しをする車体の重量をこのフラット部で受けてタイヤ
やクローラー等の滑りを防止し、傾斜部にタイヤやクロ
ーラーを強く当てないようにするためである。In this way, the slope with a downward slope is provided on the upper surface of the tread material toward the low part on the low side with the flat part on the high side because the weight of the vehicle body to be loaded and unloaded is received by this flat part. This is to prevent the tires and crawlers from slipping and to prevent the tires and crawlers from hitting the inclined portions strongly.
そしてこのような踏材は少なくとも2本をブリッジの
低所側、望ましくは最下段から2段目及び3段目に設け
る。これは例えばハイラグタイヤを有する車輌を前向き
に降す際に車輌の後側タイヤに加わる車体重量は車輌の
前側タイヤが地上に達した時点から徐々に増加し、その
分後側タイヤが次第に踏材の低所側の角を強くはじくよ
うになる。そして最下段から2〜3段目の踏材の位置で
最も強く該踏材の角を打つことになる。なお最下段の踏
材の低所側の角に対しては後側タイヤはほとんど地面に
接地した状態であるので、大きなダメージは与えない。At least two of such treads are provided on the lower side of the bridge, preferably at the second and third steps from the lowest step. This is because, for example, when a vehicle with high lag tires descends forward, the weight of the body added to the rear tires of the vehicle gradually increases from the point when the front tires of the vehicle reach the ground, and the rear tires gradually depress It will repel the lower corners of the timber. Then, the corner of the tread is struck most strongly at the position of the tread of the second to third steps from the bottom. Note that the rear tire is almost in contact with the ground at the lower corner of the bottom tread, so that no significant damage is caused.
このような傾向はタイヤの大きさやクローラーの大き
さ等によってもほとんど変わらないものである。This tendency hardly changes depending on the size of the tire, the size of the crawler, and the like.
次に本考案の一実施例を説明する。 Next, an embodiment of the present invention will be described.
第1図(a),(b)に示すように、上面が全てフラ
ットでその下側に3枚の垂直補強板(1)を設け、さら
に該上面に滑り止め用突起(2)を立設した角形踏材
(3)を、互いに平行なフレーム材(4),(4)の対
向する側壁面間にその高所取付側(図中でフレーム材
(4),(4)の先端に係止片(10)を取付けた側を指
す)から所定間隔で8本及び最低所側(最下段)に1本
溶接固定した。さらに最低所側から2本目と3本目に
は、上面が高所側のフラット部(5)と、低所側の傾斜
部(6)とからなり、その下側に3枚の垂直補強板
(1)を設けた面取形踏材(7)を溶接固定した。As shown in FIGS. 1 (a) and 1 (b), the upper surface is all flat, three vertical reinforcing plates (1) are provided below the upper surface, and anti-slip projections (2) are erected on the upper surface. The stepped square tread (3) is mounted between the mutually parallel side wall surfaces of the frame members (4) and (4) at the height mounting side thereof (in the figure, at the ends of the frame members (4) and (4)). Eight pieces and one piece at the lowest position (bottom row) were fixed by welding at predetermined intervals from the side where the stopper (10) was attached). Further, the second and third from the lowest side, the upper surface is composed of a flat part (5) on the high side and a slope part (6) on the low side, and three vertical reinforcing plates ( The chamfered tread (7) provided with 1) was fixed by welding.
このようなブリッジの高所側をトラック荷台(8)に
取付け、地面に接する低所側からトラクタの積み降しを
行なった。その結果トラクタを前向きで降ろす際上記面
取形踏板には、後輪タイヤのラグで蹴られる低所側の角
部がないので、破損する箇所もなく、従来に比べて寿命
が長くなった。The high side of such a bridge was attached to the truck bed (8), and tractors were loaded and unloaded from the low side in contact with the ground. As a result, when the tractor is lowered forward, the chamfered tread has no corners on the low side that are kicked by the lugs of the rear wheel tires, so there is no breakage point and the life is longer than in the past.
なお全踏板のうち上記面取形踏板の使用位置はなるべ
く低所側に設ける方が有効で、その数も2〜3枚が適当
である。It is more effective to set the use position of the chamfered treads on the lower side as much as possible among all the treads.
また、面取形踏板の使用枚数は少ないので、トラクタ
が登る際にも滑り等の問題は全く生じない。さらに本実
施例では面取形踏板の上面フラット部は単なる平坦なプ
レートであるが、このフラット部に上記角形踏板のよう
な滑り止め用突起を立設してもよい。Further, since the number of chamfered treads used is small, there is no problem such as slippage when the tractor climbs. Further, in this embodiment, the upper flat portion of the chamfered tread is a simple flat plate, but a non-slip projection such as the square tread may be provided upright on the flat portion.
このように本考案によれば、従来ブリッジが傷み易か
ったハイラグタイヤやラグ付クローラー等を用いた、特
に農耕用車輌に対して頻繁に使用しても、破損や溶接剥
れやブリッジの変形等が発生せず長期間にわたって安心
して使用できるブリッジが得られる効果を有する。As described above, according to the present invention, even when frequently used for agricultural vehicles, especially using a high-lag tire or a crawler with a lug, the bridge of which has been easily damaged, the bridge may be damaged, peeled off, or deformed. This has the effect of producing a bridge that can be used for a long period of time without causing any problems.
第1図は本考案の一実施例を示すもので、(a)は斜視
図、(b)は(a)のAA′線矢視図、第2図は従来例を
示す斜視図である。 1…垂直補強板、2…滑り止め用突起、3,3′…角形踏
材、4…フレーム材、5…フラット部、6…傾斜部、7
…面取形踏材、8…トラック荷台、9…ブリッジ、10…
係止片。1A and 1B show an embodiment of the present invention, wherein FIG. 1A is a perspective view, FIG. 1B is a view taken along the line AA 'of FIG. 1A, and FIG. 2 is a perspective view showing a conventional example. DESCRIPTION OF SYMBOLS 1 ... Vertical reinforcing plate, 2 ... Non-slip projection, 3, 3 '... Square stepping material, 4 ... Frame material, 5 ... Flat part, 6 ... Inclined part, 7
... beveled treads, 8 ... truck bed, 9 ... bridge, 10 ...
Locking piece.
Claims (2)
間に長手方向に所要間隔で踏材を固定してなり、上記フ
レーム材の一端を高所に取付けて傾斜した状態で用いる
ブリッジにおいて、上面が高所側のフラット部と低所側
の低所に向って下り勾配の傾斜部からなる踏材を少なく
とも2本以上をブリッジ下部に固定したことを特徴とす
る車輌用ブリッジ。1. A bridge used in a state in which treads are fixed at required intervals in a longitudinal direction between opposing side walls of a frame member parallel to each other, and one end of the frame member is mounted at a high place and used in an inclined state. A vehicular bridge characterized in that at least two or more treads having an upper surface having a flat part on a high place side and a slope part having a downward slope toward a low place on a low place side are fixed to a lower part of the bridge.
部からなる踏材を最下段から2段目及び3段目に固定し
た請求項(1)記載の車輌用ブリッジ。2. The vehicle bridge according to claim 1, wherein a tread having an upper surface comprising a flat portion on a high place side and an inclined portion on a low place side is fixed to the second and third steps from the lowest step.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990094947U JP2545941Y2 (en) | 1990-09-10 | 1990-09-10 | Bridge for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990094947U JP2545941Y2 (en) | 1990-09-10 | 1990-09-10 | Bridge for vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0451834U JPH0451834U (en) | 1992-04-30 |
JP2545941Y2 true JP2545941Y2 (en) | 1997-08-27 |
Family
ID=31833289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990094947U Expired - Lifetime JP2545941Y2 (en) | 1990-09-10 | 1990-09-10 | Bridge for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2545941Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012188191A (en) * | 2011-03-09 | 2012-10-04 | Uchiyama Shokai:Kk | Bridge for vehicle |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5925106Y2 (en) * | 1979-07-03 | 1984-07-24 | 英雄 児島 | Coaxial cable connector |
JPS61198586A (en) * | 1984-12-27 | 1986-09-02 | 田中貴金属工業株式会社 | Slide contactor |
-
1990
- 1990-09-10 JP JP1990094947U patent/JP2545941Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0451834U (en) | 1992-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |