JP2008115007A

JP2008115007A - Cover device of self-traveling portal crane

Info

Publication number: JP2008115007A
Application number: JP2006302310A
Authority: JP
Inventors: Junji Ogawa; 淳次小川
Original assignee: MARUJUN ENGINEERING KK
Current assignee: MARUJUN ENGINEERING KK
Priority date: 2006-11-08
Filing date: 2006-11-08
Publication date: 2008-05-22

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cover device of a self-traveling portal crane allowing a transport place where the portal crane is installed to be effectively utilized as a warehouse or workplace when the portal crane is stopped. <P>SOLUTION: The portal crane 3 is composed by arranging cross beams 5 between upper parts of a pair of support legs 4 having traveling wheels 6, and by attaching a winch 8 to the cross beams 5; the portal crane 3 is provided with an upper surface cover 16 covering an upper surface thereof, and side surface covers 20 covering both side surfaces; and a traveling surface cover 25 covering a front surface in the travelling direction or a rear surface in the traveling direction of the portal crane 3 is openably and closably mounted. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、屋外に設置される自走式の門型クレーンに関し、特にそのカバー装置に関するものである。 The present invention relates to a self-propelled portal crane installed outdoors, and particularly to a cover device thereof.

従来の技術として、図２に示すものがあった。図２において、１は搬送場の地面であり、該地面１に一対のレール２を左右に所定の間隔をおいて平行に設置し、該レール２上に複数の自走式の門型クレーン３（３−１，３−２）を並列に載置する。 A conventional technique is shown in FIG. In FIG. 2, reference numeral 1 denotes a ground of the transfer site. A pair of rails 2 are installed on the ground 1 in parallel at a predetermined interval on the left and right, and a plurality of self-propelled portal cranes 3 are provided on the rails 2. (3-1, 3-2) are placed in parallel.

前記各門型クレーン３は共に同じ構造となっており、そのうちの１台を代表して説明すると以下の如くなっている。即ち、一対の枠状の支持脚４の上部に、同じく枠状の横桁５を渡架して両者を一体的に連結し、各支持脚４の下部に前記レール２上で転動する複数（本例では４個）の走行輪（車輪）６を取付け、前記横桁５に横走台７を左右移動可能に載置し、該横走台７にウインチ８を取り付ける。 Each of the portal cranes 3 has the same structure, and one of them will be described as follows. That is, a plurality of frame-like cross beams 5 are bridged over the upper part of the pair of frame-like support legs 4 and are integrally connected to each other. (In this example, four) traveling wheels (wheels) 6 are attached, a lateral platform 7 is placed on the horizontal girder 5 so as to be movable left and right, and a winch 8 is attached to the lateral platform 7.

前記走行輪６は、支持脚４の下桟４ａに取付けた走行駆動部９によって正・逆回転され、門型クレーン３を前後方向（図２において矢印Ｘ方向）に移動させる。前記横走台７は横走駆動部１０によって左右方向（図２においてＹ方向）に移動させる。前記ウインチ８はフック１１が懸垂支持されるワイヤ１２を巻取り又は巻き出し、フック１１に掛けた被搬送物を昇降させる。 The traveling wheel 6 is rotated forward / reversely by a traveling drive unit 9 attached to the lower rail 4a of the support leg 4 to move the portal crane 3 in the front-rear direction (arrow X direction in FIG. 2). The transverse platform 7 is moved in the left-right direction (Y direction in FIG. 2) by the transverse drive unit 10. The winch 8 winds or unwinds the wire 12 on which the hook 11 is suspended and lifts and lowers the conveyed object hung on the hook 11.

前記従来の門型クレーン３は、全体が外部に露出していたため、門型クレーン３の休止している雨天時等においては、該門型クレーン３の設置されている広い搬送場が無駄な広場となるものであった。また、門型クレーン３の各駆動部が風雨に晒され易く、劣化し易いものであった。
特開２００３−２６１２８４号公報 Since the conventional portal crane 3 is entirely exposed to the outside, a wide transport area where the portal crane 3 is installed is a useless plaza when the portal crane 3 is at rest. It was to become. Moreover, each drive part of the portal crane 3 was easily exposed to wind and rain, and easily deteriorated.
JP 2003-261284 A

本発明は、門型クレーンの休止時に、該門型クレーンの設置されている広い搬送場を倉庫あるいは作業場として活用できるようにした新規な自走式門型クレーンのカバー装置を得ることを目的とする。 It is an object of the present invention to obtain a novel self-propelled gate crane cover apparatus that can utilize a wide conveyance place where the portal crane is installed as a warehouse or a work place when the portal crane is stopped. To do.

本発明は、前記目的を達成するために以下の如く構成したものである。即ち、請求項１に係る発明は、走行輪を有する一対の支持脚の上部に横桁を渡架し、該横桁にウインチを取り付けてなる自走式の門型クレーンを設け、前記門型クレーンに、少なくとも上面を覆う上面カバーを設ける構成にしたものである。
請求項２に係る発明は、前記各支持脚の外側に門型クレーンの両側面を覆う側面カバーを設けたものである。
請求項３に係る発明は、前記横桁に門型クレーンの走行方向前面又は走行方向後面を覆う走行面カバーを開閉可能に設けたものである。 The present invention is configured as follows to achieve the above object. That is, the invention according to claim 1 is provided with a self-propelled portal crane in which a cross beam is bridged on top of a pair of support legs having traveling wheels, and a winch is attached to the cross beam. The crane is provided with a top cover that covers at least the top surface.
According to a second aspect of the present invention, side covers that cover both side surfaces of the portal crane are provided outside the support legs.
The invention according to claim 3 is provided such that a traveling surface cover that covers the front surface in the traveling direction or the rear surface in the traveling direction of the portal crane can be opened and closed on the cross beam.

上面カバーが雨を遮ることになるので、門型クレーンを運転しない雨天時等に、該門型クレーンで囲まれた搬送場に資材を置いたり、該搬送場で別の作業をしたりすることができ、門型クレーンが設置された搬送場を有効に活用することができる。また、夏期時においては上面カバーが直射日光を遮ることになるので、門型クレーン内で荷造り、積み下ろしする作業者の疲労を軽減することになる。
請求項２に係る発明は、門型クレーンの上面及び側面を、上面カバー及び側面カバーが覆うので、前記搬送場に置いた資材を風雨から保護する機能が高くなるとともに、門型クレーン内での作業が容易となる。
請求項３に係る発明は、門型クレーン内の密閉機能が高くなるので、湿気に弱い資材を安全に搬送することができる。また、門型クレーンの休止時に該門型クレーン内に収容する資材の種類を拡大させることができるとともに、該門型クレーン内での作業が安全に行なえることになる。 The top cover will block the rain, so when it rains when the portal crane is not operating, place materials on the transfer site surrounded by the portal crane or perform other work on the transfer site. It is possible to effectively use the transfer site where the portal crane is installed. In addition, during summer, the top cover shields from direct sunlight, which reduces the fatigue of workers who pack and unload in a portal crane.
In the invention according to claim 2, since the upper surface cover and the side surface cover cover the upper surface and the side surface of the portal crane, the function of protecting the material placed on the transfer site from wind and rain is enhanced, and Work becomes easy.
In the invention according to claim 3, since the sealing function in the portal crane is enhanced, it is possible to safely transport materials that are vulnerable to moisture. In addition, the types of materials accommodated in the portal crane can be expanded when the portal crane is stopped, and work in the portal crane can be performed safely.

以下本発明の実施例を図面に基いて説明する。図１は本発明の実施例を示す一部断面斜視図である。図１において、１は搬送場の地面、２は該地面１に設置した一対のレール、３（３−１，３−２）は該レール１１上に載置した自走式の門型クレーンであり、これらは前述したものと略同構造となっているので、対応する部位に図２に付した符号と同符号を付してその説明を省略する。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially sectional perspective view showing an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes the ground of the transfer site, 2 a pair of rails installed on the ground 1, and 3 (3-1, 3-2) are self-propelled portal cranes placed on the rails 11. Since these have substantially the same structure as that described above, the corresponding parts are denoted by the same reference numerals as those shown in FIG. 2 and description thereof is omitted.

図１において、１５（１５−１，１５−２）は門型クレーン３（３−１，３−２）に取り付けたカバー装置である。該カバー装置１５はプラスチック板、あるいはシート等の資材により形成されるもので、門型クレーン３の上面を覆う上面カバー１６、該門型クレーン３の左右両側面を覆う側面カバー２０、該門型クレーン３の進行方向前面を覆う走行面カバー２５からなる。なお、走行面カバー２５は進行方向の前後面を覆うようにしてもよい。 In FIG. 1, 15 (15-1, 15-2) is a cover device attached to the portal crane 3 (3-1, 3-2). The cover device 15 is formed of a material such as a plastic plate or a sheet, and includes an upper surface cover 16 that covers the upper surface of the gate crane 3, a side cover 20 that covers both the left and right sides of the gate crane 3, and the gate shape. The traveling surface cover 25 covers the front surface of the crane 3 in the traveling direction. The traveling surface cover 25 may cover the front and rear surfaces in the traveling direction.

前記上面カバー１６は、硬質プラスチック製の板材を側面視台形の山形に屈曲させ、左右に配置した多数のブラケット１７を介して横桁５に固定する。該上面カバー１６は門型クレーン３の左右幅及び前後幅よりも若干大きくして各横桁５に対して所定量上方に配置し、各横桁５に載置した横走台７、ウインチ８の左右（図１においてＹ方向）移動を阻害しないようにする。また、前記上面カバー１６の前後の端縁に樋１８を取り付ける。 The upper surface cover 16 is formed by bending a plate made of hard plastic into a trapezoidal mountain shape when viewed from the side, and is fixed to the cross beam 5 via a number of brackets 17 arranged on the left and right. The top cover 16 is slightly larger than the lateral width and the front-rear width of the portal crane 3 and is disposed above the horizontal beam 5 by a predetermined amount. The horizontal platform 7 and the winch 8 mounted on the horizontal beam 5 are provided. The movement to the right and left (Y direction in FIG. 1) is not disturbed. Further, the flanges 18 are attached to the front and rear edges of the upper surface cover 16.

前記側面カバー２０は、硬質プラスチック製の平板、又は波板により形成され、上下に配置した多数の取付け桟２１を介して支持脚４に固定する。該側面カバー２０は各支持脚４の前後幅及び上下長さと略等しくする。なお、前記側面カバー２０の前後幅は各支持脚４前後幅よりも広幅にし、前後の門型クレーン３−１，３−２が接近した際に、隣接する側面カバー２０の前後縁部を当接、又はオーバーラップさせ、前後の門型クレーン３−１，３−２の側面を隙間無く閉塞するようにしてもよい。 The side cover 20 is formed of a hard plastic flat plate or corrugated plate, and is fixed to the support leg 4 via a number of mounting bars 21 arranged vertically. The side cover 20 is substantially equal to the front-rear width and the vertical length of each support leg 4. The front / rear width of the side cover 20 is wider than the front / rear width of each support leg 4, and when the front and rear portal cranes 3-1, 3-2 approach each other, Alternatively, the side surfaces of the front and rear portal cranes 3-1 and 3-2 may be closed without gaps.

前記走行面カバー２５は、可撓性の耐水性シート（本例では塩化ビニール製のシート）により形成され、横桁５に取り付けたカーテンレール（図示省略）に左右摺動可能に垂下係止する。該走行面カバー２５は門型クレーン３の進行方向前面（又は進行方向後面）の面積に略対応する面積とし、不使用時には一方の支持脚４に向けて折り畳み、上下中間部を止めベルト２６により前記支持脚４に締付け固定する。なお、前記走行面カバー２５は、左右中心部で分割するようにしてもよい。 The traveling surface cover 25 is formed of a flexible water-resistant sheet (in this example, a sheet made of vinyl chloride), and is suspended and suspended on a curtain rail (not shown) attached to the cross beam 5 so as to be slidable left and right. . The traveling surface cover 25 has an area substantially corresponding to the area of the front side of the portal crane 3 in the traveling direction (or the rear surface in the traveling direction), and is folded toward one of the support legs 4 when not in use. The support leg 4 is fastened and fixed. The traveling surface cover 25 may be divided at the left and right central portions.

ここで、レール２上に多数の門型クレーン３（３−１，３−２）が前後に並列に載置されている場合、これらを倉庫として活用する際には、各門型クレーン３を接近させ、最前部の門型クレーン３−１の進行方向前面を前面側の走行面カバー２５−１で閉塞し、最後部の門型クレーン３−２の進行方向後面を後面側の走行面カバー２５−２で閉塞するようにする。このようにすれば、多数の門型クレーン３で１つの部屋を形成することができ、資材を効率良く収容することができる。 Here, when a large number of portal cranes 3 (3-1, 3-2) are placed on the rail 2 in front and rear, when using these as a warehouse, each portal crane 3 is The front direction traveling crane of the front crane 3-1 is closed with the front traveling surface cover 25-1, and the rear traveling gate of the rearmost portal crane 3-2 is rear rear traveling surface cover. Block at 25-2. If it does in this way, one room can be formed with many portal cranes 3, and materials can be stored efficiently.

本発明の実施例を示す一部断面斜視図である。It is a partial cross section perspective view which shows the Example of this invention. 従来例の自走式門型クレーンを示す斜視図である。It is a perspective view which shows the self-propelled portal crane of a prior art example.

Explanation of symbols

１地面（搬送場）
２レール
３（３−１，３−２）門型クレーン
４支持脚
４ａ下桟
５横桁
６車輪
７横走台
８ウインチ
９走行駆動部
１０横走駆動部
１１フック
１２ワイヤ
１５カバー装置
１６上面カバー
１７ブラケット
１８樋
２０側面カバー
２１取付け桟
２５（２５−１，２５−２）走行面カバー
２６止めベルト 1 Ground (transport area)
2 rail 3 (3-1, 3-2) portal crane 4 support leg 4a lower beam 5 horizontal beam 6 wheel 7 horizontal platform 8 winch 9 travel drive unit 10 lateral drive unit 11 hook 12 wire 15 cover device 16 upper surface Cover 17 Bracket 18 ２０ 20 Side cover 21 Mounting bar 25 (25-1, 25-2) Traveling surface cover 26 Retaining belt

Claims

A self-propelled portal crane in which a cross beam (5) is bridged on top of a pair of support legs (4) having traveling wheels (6), and a winch (8) is attached to the cross beam (5) ( 3), and a cover device for a self-propelled portal crane, wherein the portal crane (3) is provided with an upper surface cover (16) covering at least the upper surface.

The cover device for a self-propelled portal crane according to claim 1, characterized in that a side cover (20) for covering both sides of the portal crane (3) is provided outside each support leg (4).

The self-propelled gate according to claim 1 or 2, characterized in that a traveling surface cover (25) for covering the front surface in the traveling direction or the rear surface in the traveling direction of the portal crane (3) is provided on the cross beam (5) so as to be openable and closable. Type crane cover device.