JPS5853613B2 - lift arm plate - Google Patents
lift arm plateInfo
- Publication number
- JPS5853613B2 JPS5853613B2 JP1254579A JP1254579A JPS5853613B2 JP S5853613 B2 JPS5853613 B2 JP S5853613B2 JP 1254579 A JP1254579 A JP 1254579A JP 1254579 A JP1254579 A JP 1254579A JP S5853613 B2 JPS5853613 B2 JP S5853613B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- lift arm
- welding
- plate body
- arm 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
Links
- 238000003466 welding Methods 0.000 claims description 8
- 230000036760 body temperature Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Description
【発明の詳細な説明】
本発明はダンプカー等に装備するリフトアームのプレー
トに関する発明である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plate for a lift arm installed in a dump truck or the like.
従来、ダンプカー等のリフトアームに取付けた略三角型
のプレート本体は強度上、厚い板材を使用し、その外周
縁部の片側又は両側に角棒状の補強材を溶着して取付け
るものであるが、プレート本体に重量があり、また之に
取付けた補強材の溶着部より発生した溶接熱によってプ
レートに歪みを起す欠点があった。Conventionally, the approximately triangular plate body attached to the lift arm of a dump truck, etc., is made of thick plate material for strength, and a square rod-shaped reinforcing material is welded to one or both sides of the outer periphery. The plate body is heavy, and the plate is distorted by the welding heat generated from the welded portion of the reinforcing material attached to the plate body.
本発明はかかる点に鑑みてなされたもので、以下本発明
の実施例を詳述する。The present invention has been made in view of this point, and examples of the present invention will be described in detail below.
図において、Ａはダンプカーのシャシと荷箱間に配装さ
れたホイスト機構のリフトアームプレートである。In the figure, A is a lift arm plate of a hoist mechanism arranged between the chassis of a dump truck and a cargo box.
本発明に係るこのリフトアームプレートＡは第１図乃至
第４図に示すように、略三角型にして外周縁部２，２′
を内方に屈曲し、中央部位は内方に突出して内方突出部
３，３′をプレス成型した対称形状をなす一対のプレス
板１，１′を対向的に配置して画板の外周縁を突合せ溶
着するとともに、中央部位の内方突出部３，３′では両
方の突出部面を当接させ、一方の内方突出部３に穿設し
た接合孔５の孔縁を他方の内方突出部３′面に溶着し、
体内周部に閉鎖中空部を形成してプレート本体を構成し
、このプレート本体の各角部で外周縁部２，２′、及び
その内方突出部３，３′から一定間隔をおいて軸受孔４
，４′を穿設し、該軸受孔４，４′に軸受６．。As shown in FIGS. 1 to 4, this lift arm plate A according to the present invention has a substantially triangular shape with outer peripheral edges 2, 2'.
A pair of press plates 1, 1' are bent inward, the central part protrudes inward, and the inwardly protruding parts 3, 3' are press-molded. At the same time, the surfaces of both protrusions are brought into contact with each other at the inwardly protruding parts 3 and 3' at the center, and the edge of the joint hole 5 bored in one inwardly protruding part 3 is connected to the inner part of the other. Welded to the protrusion 3' surface,
A closed hollow part is formed in the body periphery to constitute a plate body, and a bearing is mounted at each corner of the plate body at a constant distance from the outer peripheral edge 2, 2' and its inward protrusion 3, 3'. Hole 4
, 4' are bored, and bearings 6., 4' are bored in the bearing holes 4, 4'. .
６を貫通溶着したものである。6 is welded through.
然して、上記の如く構成した本発明のリフトアームプレ
ートは従来の強度上よりして厚い平板を主体とするプレ
ートに比し薄い鋼板よりなる一対のプレス板を使用する
ものであるから、重量が軽い上に、相対向するこの一対
のプレス板はその外周縁部と内方突出部に於いて溶着し
、体内周部に閉鎖中空部を形成した立体的構造物となる
から、ダンプカーの荷箱を傾動させるに際し、プレート
各軸に作用力が発生したとしても、この作用力を充分に
支持することができるものであり、更に一対のプレス板
は、その外周部及び内方突出部面に於ける接合孔縁部を
溶着するのみでプレート本体が構成されるから、溶着部
が従来のものより著るしく少なくなり製作が容易であり
、また溶着部より発生する溶接熱も少なく、この溶接熱
に起因する製品の歪を解消し、製品形状を均特化して高
品質なものが提供できる。However, the lift arm plate of the present invention constructed as described above uses a pair of pressed plates made of thinner steel plates than the conventional plate, which is mainly made of thicker flat plates in terms of strength, and is therefore lighter in weight. Above, the pair of press plates facing each other are welded together at their outer periphery and inward protrusion to form a three-dimensional structure with a closed hollow inside the body. Even if an acting force is generated on each axis of the plate when tilting, this acting force can be sufficiently supported, and furthermore, the pair of press plates is Since the plate body is constructed by simply welding the edges of the joint holes, the number of welded parts is significantly smaller than in conventional models, making production easier. Also, the welding heat generated from the welded parts is small, and this welding heat can be easily absorbed. By eliminating the distortion caused by the product and making the product shape uniform, it is possible to provide high quality products.
添付図面は本発明の実施例を示すものであり、第１図は
本発明によるリフトアームプレートの正面図、第２図は
一部を欠除する同上平面図、第３図は第１図Ｘ−Ｘ線に
於ける同上断面図、第４図は第１図Ｘ−Ｘ線に於ける同
上断面図、第５図は本プレートを装備したダンプカーの
一部構造図である。
１・・・・・・プレス板、２・・・・・・外周縁部、３
・・・・・・内方突出部、４・・・・・・軸受孔、５・
・・・・・接合孔、６・・・・・・軸受。The attached drawings show embodiments of the present invention, and FIG. 1 is a front view of a lift arm plate according to the present invention, FIG. 2 is a partially cutaway plan view of the same, and FIG. 3 is a view similar to FIG. 4 is a cross-sectional view taken along line X--X in FIG. 1, and FIG. 5 is a partial structural diagram of a dump truck equipped with this plate. 1...Press plate, 2...Outer peripheral edge, 3
...Inward protrusion, 4...Bearing hole, 5.
...Joining hole, 6...Bearing.
Claims (1)
る様にプレス成型した略三角型のプレス板の一対を対向
的に配置して画板の外周縁を突き合わせ溶着するととも
に、中央部位の各内方突出部面を当接させて部分溶着し
てプレート本体を構威し、該プレート本体の各角部に軸
受を貫設したことを特徴とするリフトアームプレート。 ２ 前記、軸受はプレート本体の体温縁部、及びその内
方突出部から一定間隔をおいて設けたことを特徴とする
特許請求の範囲第１項記載のリフトアームプレート。 ３ 前記、内方突出部面に於ける溶着は、プレス板の一
方に接合孔を設け、該接合孔縁と他方の板面を溶着した
ことを特徴とする特許請求の範囲第１項記載のリフトア
ームプレート。[Scope of Claims] 1. A pair of substantially triangular press plates, which are press-molded so that the outer periphery is bent inward and the central portion protrudes inward, are arranged oppositely to form the outer periphery of the drawing board. A lift arm characterized in that a plate body is formed by butt welding and partially welding each inwardly protruding part surface of the central portion in contact with each other, and bearings are provided through each corner of the plate body. plate. 2. The lift arm plate according to claim 1, wherein the bearing is provided at a constant distance from the body temperature edge of the plate body and its inward protrusion. 3. The method according to claim 1, wherein the welding on the surface of the inwardly protruding portion is performed by providing a joining hole in one of the press plates, and welding the edge of the joining hole to the other plate surface. lift arm plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1254579A JPS5853613B2 (en) | 1979-02-05 | 1979-02-05 | lift arm plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1254579A JPS5853613B2 (en) | 1979-02-05 | 1979-02-05 | lift arm plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55132336A JPS55132336A (en) | 1980-10-15 |
| JPS5853613B2 true JPS5853613B2 (en) | 1983-11-30 |
Family
ID=11808295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1254579A Expired JPS5853613B2 (en) | 1979-02-05 | 1979-02-05 | lift arm plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5853613B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5979429U (en) * | 1982-11-19 | 1984-05-29 | 東急車輌製造株式会社 | Cargo box tilting lift plate |
| JPS60106800A (en) * | 1983-11-15 | 1985-06-12 | 東急車輌製造株式会社 | Method of mounting lifting jack |
-
1979
- 1979-02-05 JP JP1254579A patent/JPS5853613B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55132336A (en) | 1980-10-15 |
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