JP3593541B1 - Load carrier - Google Patents

Load carrier Download PDF

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JP3593541B1
JP3593541B1 JP2003350996A JP2003350996A JP3593541B1 JP 3593541 B1 JP3593541 B1 JP 3593541B1 JP 2003350996 A JP2003350996 A JP 2003350996A JP 2003350996 A JP2003350996 A JP 2003350996A JP 3593541 B1 JP3593541 B1 JP 3593541B1
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bottom plate
rear wall
wall portion
frame
load carrier
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JP2005112239A (en
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猛 山田
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吉田車輌機器株式会社
ヤマト物流設計株式会社
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Abstract

【課題】側壁部の幅を後壁部の幅より大きく設定することも可能であり、また、底板上にさらに後壁部を折り畳めるような構造上の工夫を全く必要としない構造が簡易でありかつ低コストの荷運搬台車を提供する。
【解決手段】荷運搬台車10は、底板1、側壁部2,3、および後壁部を有し、下方の四隅にキャスター5が設けられている。前記底板1は、後壁部の前面に折り畳むことが可能なように、その後端部が後壁部の下枠に回動自由に支持されている。一方の側壁部3は、後壁部の後面に折り畳むことが可能なように、後方側の側枠34が後壁部の側端縁に回動自由に支持されるとともに、上枠31および下枠32が後壁部の上枠41および下枠と上下方向に位置ずれさせている。
【選択図】図2



[PROBLEMS] It is possible to set a width of a side wall portion larger than a width of a rear wall portion, and to simplify a structure that does not require any structural device to fold the rear wall portion on the bottom plate. Provide a low-cost load carrier.
A load carrier has a bottom plate, side walls, and a rear wall, and casters are provided at four lower corners. The bottom end of the bottom plate 1 is rotatably supported by a lower frame of the rear wall so that the bottom plate 1 can be folded in front of the rear wall. One of the side walls 3 has a rear side frame 34 rotatably supported by a side edge of the rear wall so that the side frame 3 can be folded on the rear surface of the rear wall. The frame 32 is vertically displaced from the upper frame 41 and the lower frame of the rear wall portion.
[Selection diagram] FIG.



Description

この発明は、工場や倉庫などにおいて、荷を積んで運搬したり、荷を積んだ状態でストックしたりするのに用いられるキャスター付きの荷運搬台車に関する。   BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load-carrying cart with casters used for loading and transporting a load in a factory or a warehouse, or stocking a load.

従来の典型的な荷運搬台車は、底板上に左右の側壁部と後壁部とで囲まれた荷積空間を有しており、前面の開放部分より底板上の積荷空間に対する荷の積み降ろしを行うものである。両側壁部や後壁部は複数本の金属製パイプを連結して形成されている。この種の荷運搬台車は、一般に、未使用時に嵩張らないようにするために折り畳みが可能な構造になっている。   A conventional typical load carrier has a loading space surrounded by left and right side walls and a rear wall on a bottom plate, and loads and unloads a load from the open front portion to the loading space on the bottom plate. Is what you do. The side walls and the rear wall are formed by connecting a plurality of metal pipes. In general, this type of load carrier has a foldable structure so as not to be bulky when not in use.

折り畳みが可能な荷運搬台車として、底板を後壁部の前面に折り畳み、その底板上に一方の側壁部を折り畳み、さらにその上に他方の側壁部を折り畳むようにしたものが存在する。しかし、そのような折り畳み構造では、全体がコンパクトになる反面、側壁部が両方共に折り畳まれるので、折り畳み後は転倒しないようにするために、壁面などにもたれ掛けさせる必要がある。その結果、折り畳んだものを複数台を重ねるようにして保管できず、保管上却って不便である。そこで、一方の側壁部のみを後壁部の前面側に折り畳める構造とした荷運搬台車も提案されている(例えば、特許文献1参照)。   2. Description of the Related Art There is a foldable load carrier in which a bottom plate is folded on the front surface of a rear wall portion, one side wall portion is folded on the bottom plate, and the other side wall portion is further folded thereon. However, in such a folded structure, although the whole is compact, both the side walls are folded, so that it is necessary to lean on a wall surface or the like in order to prevent falling after folding. As a result, the folded objects cannot be stored in a stack of a plurality of units, which is inconvenient in storage. Therefore, a load carrier having a structure in which only one side wall is folded toward the front side of the rear wall has been proposed (for example, see Patent Document 1).

特開2001−158362号公報JP 2001-158362 A

しかしながら、側壁部を後壁部の前面側に折り畳む構造では、側壁部の幅を後壁部の幅より大きく設定できず、台車の形状に制約を受ける。また、後壁部の前面に底板を折り畳み、さらにその上に側壁部を折り畳めるようにするためには、構造上の工夫が必要であり、構造の複雑化とコスト高とを招くおそれがある。   However, in the structure in which the side wall portion is folded toward the front side of the rear wall portion, the width of the side wall portion cannot be set larger than the width of the rear wall portion, and the shape of the bogie is restricted. Further, in order to fold the bottom plate on the front surface of the rear wall portion and further fold the side wall portion thereon, it is necessary to devise a structure, which may lead to a complicated structure and high cost.

この発明は、上記した問題に着目してなされたもので、側壁部の幅を後壁部の幅より大きく設定することも可能であり、また、底板上にさらに側壁部を折り畳めるような構造上の工夫を全く必要としない、構造が簡易でありかつ低コストの荷運搬台車を提供することを目的とする。 This invention has been made in view of the problems described above, it is also possible to set larger than the width of the rear wall portion of the width of the side wall portions, also, the bottom plate on the further structural like folded side wall portions It is an object of the present invention to provide a low-cost load carrier that has a simple structure and does not require any contrivance.

この発明による荷運搬台車は、底板上に左右の側壁部と、各側壁部と直角をなす後壁部とで囲まれた荷積空間を有するキャスター付きの荷運搬台車であり、各側壁部および後壁部は、外周の枠が互いに平行な上枠および下枠と、互いに平行な前後の側枠とから成り、上枠および下枠の前後端部に前後の側枠の上下端部をそれぞれ連結して形成されている。前記底板は、後壁部の前面に折り畳むことが可能なように、その後端部が後壁部の下枠に回動自由に支持されている。一方の側壁部は、後壁部の後面に折り畳むことが可能なように、後方側の側枠が後壁部の側端縁に回動自由に支持されるとともに、折り畳み時に側壁部の上枠および下枠が後壁部の上枠および下枠に重ならないようにそれぞれ上下方向に位置ずれしている。他方の側壁部は後壁部に対して直角に保持されるように後壁部の側端縁に一体に連結固定されている。 Load carrying truck according to the invention, on the bottom plate, and left and right side wall portions, a caster with a cargo carrying truck having a loading space surrounded by the wall portion after forming the respective side wall at right angles, the side walls and the rear wall portion, the upper frame and the lower frame parallel to each other the frame of the peripheral, consists of a parallel front and rear side frames to each other, the upper and lower ends of the front and rear of the side frame to the front and rear ends of the upper frame and the lower frame Each is formed by connecting. The bottom end of the bottom plate is rotatably supported by a lower frame of the rear wall so that the bottom plate can be folded to the front of the rear wall. One of the side walls has a rear side frame rotatably supported by a side edge of the rear wall so that it can be folded on the rear surface of the rear wall, and an upper frame of the side wall at the time of folding. The lower frame and the lower frame are vertically displaced so as not to overlap the upper frame and the lower frame of the rear wall portion. The other side wall is integrally connected and fixed to a side edge of the rear wall so as to be held at right angles to the rear wall.

この発明の上記した構成において、後壁部および左右の各側壁部における上枠、下枠、および両側枠は、通常、金属製パイプを用いて構成するが、必ずしもパイプ状のものに限られるものではない。また、前記キャスターは、望ましくは、両側壁部の両側枠の下端にそれぞれ直接取り付けられるが、キャスターの取付方法は、これに限らず、例えば、側壁部や後壁部の下端に取付金具を取り付け、この取付金具にキャスターを取り付けるようにしてもよい。   In the above-described configuration of the present invention, the upper frame, the lower frame, and the both side frames in the rear wall portion and the left and right side wall portions are usually formed using metal pipes, but are not necessarily limited to pipe-shaped ones. is not. In addition, the casters are desirably directly attached to the lower ends of both side frames of both side walls, however, the method of mounting the casters is not limited to this, and for example, a mounting bracket is attached to the lower ends of the side walls and the rear wall. Alternatively, casters may be attached to this mounting bracket.

上記した構成の荷運搬台車に対して前面の開放部分より荷の積み降ろしを行う。底板は両側壁部と後壁部とで囲まれているので、底板上に積み込まれた荷は両側壁部と後壁部とによって転落が阻止される。
荷運搬台車は、未使用時には嵩張らないように折り畳み、多数台を前後に重ねてストックする。折り畳みに際しては、底板は後端部を支点として上方へ回動させて後壁部の前面に折り畳む。一方の側壁部は後方側の側枠を支点として後方へ回動させて後壁部の後面に折り畳む。この場合に、側壁部の上枠および下枠は後壁部の上枠および下枠と上下方向に位置がずれているので、上枠同士、下枠同士がそれぞれ重なって干渉することがなく、十分深く折り畳むことができる。他方の側壁部は折り畳むことができず、後壁部とともに組立て姿勢を維持するので、折り畳み後であっても転倒することがなく、折り畳んだ荷運搬台車を多数台前後に重ねるようにして格納場所にストックできる。
The loading / unloading of the load carrier having the above-described configuration is performed from an open portion on the front surface. Since the bottom plate is surrounded by the side walls and the rear wall, the load loaded on the bottom plate is prevented from falling down by the side walls and the rear wall.
When not in use, load carriers are folded so as not to be bulky, and a large number of vehicles are stacked back and forth and stocked. At the time of folding, the bottom plate is pivoted upward with the rear end portion as a fulcrum and folded on the front surface of the rear wall portion. One of the side wall portions is pivoted rearward with the rear side frame as a fulcrum, and folded on the rear surface of the rear wall portion. In this case, since the upper frame and the lower frame of the side wall portion are vertically displaced from the upper frame and the lower frame of the rear wall portion, the upper frames and the lower frames do not interfere with each other, Can be folded deep enough. Can not other side wall portion folding Mukoto, so to maintain the assembled position together with the rear wall, without having to fall even after folding, so as to overlap the load carrying trolley folded into a number table back and forth Can be stocked in the storage location.

この発明の好ましい一実施態様においては、前記底板は、水平な状態となるように前端部の両側が保持装置により保持されている。前記保持装置は、底板に対する下向きの力を支える第1の支持手段と、底板に対する上向きの力を支える第2の支持手段とを含むものである。この実施態様によれば、底板には荷の荷重に相当する下向きの力が作用するが、この力は第1の支持手段により支持される。また、フォークリフトにより底板の下面を支持して荷運搬台車を持ち上げた場合、底板には台車の荷重に相当する上向きの力が作用するが、この力は第2の支持手段によって支持される。   In a preferred embodiment of the present invention, both sides of the front end of the bottom plate are held by holding devices so as to be horizontal. The holding device includes first supporting means for supporting a downward force on the bottom plate, and second supporting means for supporting an upward force on the bottom plate. According to this embodiment, a downward force corresponding to the load of the load acts on the bottom plate, and this force is supported by the first support means. When the forklift lifts the load carrier while supporting the lower surface of the bottom plate, an upward force corresponding to the load of the truck acts on the bottom plate, and this force is supported by the second support means.

前記の第1の支持手段や第2の支持手段は種々の態様のものが考えられるが、例えば、第1の支持手段は底板の前端部の両側を下方より支持する受け金具をもって構成し、また、第2の支持手段は、底板の前端部の両側と両側壁部とを連結する連結金具をもって構成する。   The first support means and the second support means may be of various forms. For example, the first support means may be configured by receiving metal members for supporting both sides of the front end of the bottom plate from below, The second support means includes a connection fitting for connecting both sides of the front end of the bottom plate and both side walls.

この発明によると、底板は後壁部の前面に折り畳まれ、側壁部の一方は後壁部の後面に折り畳まれるから、側壁部の幅を後壁部の幅より大きく設定することも可能であり、台車の設計に制約を受けない。また、底板上にさらに側壁部を折り畳めるような構造上の工夫を全く必要としないから、構造が簡易となり、コスト高を招くおそれもない。さらに、側壁部の上枠および下枠が後壁部の上枠および下枠と上下方向に位置ずれさせているので、上枠同士、下枠同士がそれぞれ重なって干渉することがなく、側壁部を十分深く折り畳むことができる。
According to the present invention, since the bottom plate is folded on the front surface of the rear wall portion and one of the side wall portions is folded on the rear surface of the rear wall portion, the width of the side wall portion can be set larger than the width of the rear wall portion. And there is no restriction on the design of the bogie. In addition, since there is no need to devise a structure in which the side wall portion can be further folded on the bottom plate, the structure is simplified, and there is no possibility that the cost will be increased. Further, since the upper frame and the lower frame of the side wall portion are vertically displaced from the upper frame and the lower frame of the rear wall portion, the upper frame and the lower frame do not overlap and interfere with each other. Can be folded deep enough.

図1および図2は、この発明の一実施例である荷運搬台車10の外観を示す。
この荷運搬台車10は、底板1と、左右の側壁部2,3と、各側壁部2,3と直角をなす後壁部4とから成る。底板1上には左右の側壁部2,3と後壁部4とで囲まれた荷積空間Aが形成されている。この荷積空間Aは前面および上面が開放されている。図示例の荷運搬台車10は、底板1が後壁部4の前面に、一方の側壁部3が後壁部4の後面に、それぞれ折り畳むことが可能に形成されている(図中、折り畳み状態を一点鎖線で示す。)。
1 and 2 show the appearance of a load carrier 10 according to an embodiment of the present invention.
The load carrier 10 includes a bottom plate 1, left and right side walls 2, 3, and a rear wall 4 perpendicular to the side walls 2, 3. On the bottom plate 1, a loading space A surrounded by left and right side walls 2, 3 and a rear wall 4 is formed. This loading space A is open at the front and the top. In the illustrated example of the load carrier 10, the bottom plate 1 is formed on the front surface of the rear wall portion 4 and the one side wall portion 3 is formed on the rear surface of the rear wall portion 4 so as to be foldable (in the figure, the folded state). Is indicated by a chain line).

図2には、一方(固定)の側壁部2について構成が示してある。この側壁部2は外周の枠が金属製パイプより成る上枠21、下枠22、および前後各位置の側枠23,24をそれぞれ連結して形成されている。上枠21と下枠22とは互いに平行であり、上枠21と下枠22との間にはやや小径の金属パイプより成る2本の縦枠25が設けられている。前後の側枠23,24も互いに平行であり、両側枠23,24間にはフラットバー材より成る3本の横枠26が架設されている。なお、他方(折り畳み可能)の側壁部3の構成も上記した側壁部2の構成と同様であり、ここでは対応する構成の符号を図2に括弧書きで示すことで説明を省略する。   FIG. 2 shows the configuration of one (fixed) side wall 2. The side wall 2 is formed by connecting an upper frame 21, a lower frame 22, and side frames 23, 24 at respective front and rear positions, each of which has an outer frame formed of a metal pipe. The upper frame 21 and the lower frame 22 are parallel to each other, and between the upper frame 21 and the lower frame 22 are provided two vertical frames 25 made of a metal pipe having a slightly smaller diameter. The front and rear side frames 23 and 24 are also parallel to each other, and three horizontal frames 26 made of a flat bar material are provided between the side frames 23 and 24. The configuration of the other (foldable) side wall portion 3 is the same as the configuration of the side wall portion 2 described above. Here, the reference numerals of the corresponding components are shown in parentheses in FIG.

図1に示される後壁部4も、外周の枠が金属製パイプより成る上枠41、下枠42、および両側枠43,44をそれぞれ連結して形成されている。上枠41と下枠42との間にはやや小径の金属パイプより成る2本の縦枠45が、また、両側枠43,44間にはフラットバー材より成る1本の横枠46が、それぞれ設けられている。   The rear wall portion 4 shown in FIG. 1 is also formed by connecting an upper frame 41, a lower frame 42, and both side frames 43 and 44 whose outer peripheral frames are made of a metal pipe. Between the upper frame 41 and the lower frame 42 are two vertical frames 45 made of a slightly smaller diameter metal pipe, and between the side frames 43 and 44, one horizontal frame 46 made of a flat bar material. Each is provided.

両側壁部2,3および後壁部4には、小径の金属パイプより成る筋交い27,37,47がそれぞれ設けられている。両側壁部2,3の両側枠23,24,33,34の下端にはキャスター5がそれぞれ取り付けられている。後壁部4の高さは両側壁部2,3の高さより低く設定されており、この後壁部4の上枠41の高さを荷積みの制限高さ(図中、二点鎖線で示す。)となしている。また、後壁部4の下枠42は、両側壁部2,3の下枠22,32より高い位置にあり、後壁部4の上枠41は両側壁部2,3の上枠21,31より低い位置にあり、側壁部3を後方へ回動して後壁部4の後面に折り畳むとき、側壁部3の上枠31および下枠32が後壁部4の上枠41および下枠42に重ならないようになっており、これにより側壁部3を十分に深く折り畳めるようにしてある。   Braces 27, 37, 47 made of small-diameter metal pipes are provided on both side walls 2, 3 and rear wall 4, respectively. Casters 5 are attached to the lower ends of the side frames 23, 24, 33, 34 of the side walls 2, 3, respectively. The height of the rear wall portion 4 is set lower than the height of the side wall portions 2 and 3, and the height of the upper frame 41 of the rear wall portion 4 is set to the limit height for loading (in the figure, a two-dot chain line). Shown). The lower frame 42 of the rear wall portion 4 is located higher than the lower frames 22 and 32 of the side wall portions 2 and 3, and the upper frame 41 of the rear wall portion 4 is positioned higher than the upper frame 21 of the side wall portions 2 and 3. 31, when the side wall portion 3 is rotated backward and folded on the rear surface of the rear wall portion 4, the upper frame 31 and the lower frame 32 of the side wall portion 3 become the upper frame 41 and the lower frame of the rear wall portion 4. 42 so that the side wall 3 can be folded sufficiently deeply.

前記底板1は、図7〜図9に示されるように、断面L字状の枠材によって形成された矩形状の外周枠11上に板材12が図示しないボルトなどで固着されて成るものである。   As shown in FIGS. 7 to 9, the bottom plate 1 is formed by fixing a plate material 12 on a rectangular outer peripheral frame 11 formed by a frame material having an L-shaped cross section with bolts or the like (not shown). .

この荷運搬台車10は、図3に示すように、両側壁部3,2の上枠31,21上に他の荷運搬台車10の両側壁部3,2を支持することによって、上下2段、さらにはそれ以上の段数に荷運搬台車10を積み上げることが可能となっている。
この実施例では、キャスター付きの荷運搬台車10の段積みを可能となすために、図4に示すように、両側壁部3,2の各上枠31,21は下枠32,22より短い長さに設定し、各上枠31,21の前端および後端を両側枠33,23および34,24の位置b1,b2から中心線cの方向へ後退して位置させることにより、他の荷運搬台車を両側壁部3,2上に支持したときに、その荷運搬台車のキャスター5を宙吊り状態で位置させる空間aを形成している。
As shown in FIG. 3, the load carrier 10 supports the two side walls 3, 2 of the other load carrier 10 on the upper frames 31, 21 of the two side walls 3, so that the upper and lower sides of the two trucks are arranged in two stages. Further, it is possible to stack the load transporting trolleys 10 in more stages.
In this embodiment, as shown in FIG. 4, the upper frames 31 and 21 of the side walls 3 and 2 are shorter than the lower frames 32 and 22 in order to enable stacking of the load carrier 10 with casters. By setting the length to the length, the front end and the rear end of each of the upper frames 31 and 21 are retracted from the positions b1 and b2 of the side frames 33 and 23 and 34 and 24 in the direction of the center line c, so that other loads can be obtained. When the transport vehicle is supported on the side walls 3 and 2, a space a is formed in which the casters 5 of the load vehicle are suspended in the air.

また、荷運搬台車10,10が上下二段に積み上げられたとき、上段の荷運搬台車10を下段の荷運搬台車10が安定して支持できるように、各側壁部3,2における両側枠33,23および34,24の上端部分33a,23aおよび34a,24aを中心線cの方向へ曲げて上枠31,21の前端部および後端部に下方より連結するとともに、下枠32,22には、図4および図5に示すように、上枠31,21の前端部および後端部に対応する位置に、下段の荷運搬台車の上枠31,21に対して上方より係脱可能な前後一対の係合金具38,28を溶接により取り付けている。この実施例の各係合金具38,28は、下方が開放された逆U字形状のものであるが、これに限らず、逆V字形状であってもよく、また、それ以外の形状であってもよい。なお、この係合金具38,28は両端位置に加えて中間位置に取り付けてもよい。   Also, when the load carriers 10 are piled up and down in two stages, both side frames 33 on each of the side walls 3 and 2 so that the lower stage load carrier 10 can stably support the upper stage load carrier 10. , 23 and 34, 24 are bent in the direction of the center line c so as to be connected to the front and rear ends of the upper frames 31, 21 from below, and to be connected to the lower frames 32, 22. As shown in FIG. 4 and FIG. 5, the upper and lower frames 31 and 21 can be disengaged from the upper frames 31 and 21 at positions corresponding to the front and rear ends of the upper frames 31 and 21 from above. A pair of front and rear engagement fittings 38 and 28 are attached by welding. Each of the engagement fittings 38 and 28 in this embodiment has an inverted U-shape in which the lower part is opened, but is not limited thereto, and may have an inverted V-shape. There may be. Note that the engagement fittings 38 and 28 may be mounted at an intermediate position in addition to both end positions.

さらに、係合金具38,28と上枠31,21との係合が外れて上段の荷運搬台車10が脱落しないように、上枠31,21の前端および後端には、前記係合金具38,28が上枠31,21より前方や後方へ外れないようにするためのストッパー39,29が一体に取り付けられている。図示例のストッパー39,29は、上枠31,21の外周方向につば状に突き出た構成態様のものであるが、そのような形態のものに限定されるものではない。また、この実施例では、上枠31,21の側にストッパー39,29を設けているが、図6に示すように、下枠32,22の側の係合金具38,28の位置に設けてもよい。図6のストッパー39,29は、前端部の係合金具38,28についてはその前端面に、後端部の係合金具38,28についてはその後端面に、それぞれ逆U字状の溝端を塞ぐように取り付けられている。   Further, the front and rear ends of the upper frames 31 and 21 are provided with the above-mentioned engaging fittings so that the engaging fittings 38 and 28 and the upper frames 31 and 21 are disengaged from each other and the upper-stage load carrier 10 does not fall off. Stoppers 39 and 29 are integrally attached to prevent the upper and lower frames 38 and 28 from coming forward and rearward from the upper frames 31 and 21, respectively. The stoppers 39 and 29 in the illustrated example have a configuration in which the stoppers 39 and 29 protrude in the outer peripheral direction of the upper frames 31 and 21 in a brim shape, but are not limited thereto. In this embodiment, the stoppers 39 and 29 are provided on the upper frames 31 and 21. However, as shown in FIG. 6, the stoppers 39 and 29 are provided on the lower frames 32 and 22 at the positions of the engagement fittings 38 and 28. You may. The stoppers 39 and 29 in FIG. 6 close the inverted U-shaped groove ends on the front end surfaces of the front engagement members 38 and 28 and on the rear end surfaces of the rear engagement members 38 and 28, respectively. So that it is attached.

この実施例では、未使用時に底板1が後壁部4の前面に折り畳むことが可能なように、底板1の後端面の中央部と両端部とにそれぞれ吊り金具13を取り付け、図7に示すように、各吊り金具13の軸受孔13aに後壁部4の下枠42を挿通することにより底板1が前記後壁部4の下枠42に回動自由に支持されている。   In this embodiment, hanging brackets 13 are attached to the center and both ends of the rear end surface of the bottom plate 1 so that the bottom plate 1 can be folded to the front surface of the rear wall portion 4 when not in use, as shown in FIG. As described above, the bottom plate 1 is rotatably supported by the lower frame 42 of the rear wall portion 4 by inserting the lower frame 42 of the rear wall portion 4 into the bearing hole 13a of each hanging bracket 13.

前記底板1は、図8に示すように、前端部の両側が両側壁部2,3との間に設けられた保持装置6によってロック状態で支持され、底板1に下向きおよび上向きの力が作用しても、水平な状態に保持される。
前記保持装置6は、受け金具60と連結金具61とから成る。前記受け金具60は、図9に示すように、両側壁部2,3の下枠22,32の前端部に内向きにそれぞれ取り付けられており、底板1の外周枠11の両側部が上方から係脱可能なようにL字状もしくは鈎状に形成されている。底板1が受け金具60に係合するとき、回動が可能な方の側壁部3はその回動が規制されるので、受け金具60は側壁部3の開き止めとしても機能する。
As shown in FIG. 8, the bottom plate 1 is supported in a locked state on both sides of a front end by a holding device 6 provided between the side walls 2 and 3, and downward and upward forces act on the bottom plate 1. Even so, it is maintained in a horizontal state.
The holding device 6 includes a receiving fitting 60 and a connecting fitting 61. As shown in FIG. 9, the receiving bracket 60 is attached inward to the front ends of the lower frames 22 and 32 of the side walls 2 and 3, and both sides of the outer peripheral frame 11 of the bottom plate 1 are positioned from above. It is formed in an L shape or a hook shape so that it can be disengaged. When the bottom plate 1 is engaged with the receiving bracket 60, the pivoting of the rotatable side wall portion 3 is restricted, so that the receiving bracket 60 also functions as a stopper for opening the side wall portion 3.

前記連結金具61は、図10に示すように、底板1の外周枠11の前端部の両側にそれぞれ取り付けられており、レバー62の往復操作によってピン63が往復動し、両側壁部3,2の下枠32,22の前端部に形成された係合孔64に係脱する。ピン63が係合孔64に係入されたとき、底板1はロック状態となり、底板1に上向きの力が作用しても底板1が起き上がることはない。前記係合孔64は両側壁部3,2の最上位置の横枠36,26にもそれぞれ設けてあり、底板1を折り畳んだ状態で各ピン63を横枠36,26の係合孔64に係入させれば、底板1を起立した状態に保持できる。
なお、図8および図10において、14は底板1の板材12の前端縁から側縁にかけて切り欠いて形成された切欠部であり、この切欠部14より手を挿入して、前記連結金具61のレバー操作が行えるようになっている。
As shown in FIG. 10, the connection fittings 61 are attached to both sides of the front end of the outer peripheral frame 11 of the bottom plate 1. The lower frames 32 and 22 are engaged with and disengaged from engagement holes 64 formed at the front ends. When the pin 63 is engaged with the engagement hole 64, the bottom plate 1 is in a locked state, and the bottom plate 1 does not rise even if an upward force acts on the bottom plate 1. The engagement holes 64 are also provided in the uppermost horizontal frames 36 and 26 of the side walls 3 and 2 respectively, and the pins 63 are inserted into the engagement holes 64 of the horizontal frames 36 and 26 with the bottom plate 1 folded. If it is engaged, the bottom plate 1 can be held upright.
8 and 10, reference numeral 14 denotes a notch formed by cutting the front end edge of the plate member 12 of the bottom plate 1 from the side edge thereof. Lever operation can be performed.

また、この実施例では、図1〜図3に示されるように、一方の側壁部3が後壁部4の後面に折り畳むことが可能なように、その後方側の側枠34の上下3カ所が後壁部4の側端縁に軸受部7によって回動自由に支持されている。この実施例では、側壁部3の上枠31および下枠32は後壁部4の上枠41および下枠42と高さが違えてあるので、側壁部3を回動して後壁部4の後面に重ねるとき、上枠31,41同士と下枠32,42同士がそれぞれ干渉することがない。なお、他方の側壁部2は後壁部4に対して直角な姿勢で保持されるもので、後壁部4の側端縁に一体に連結固定されている。   In this embodiment, as shown in FIGS. 1 to 3, three upper and lower portions of a rear side frame 34 are provided so that one side wall portion 3 can be folded on the rear surface of the rear wall portion 4. Are rotatably supported on the side edge of the rear wall portion 4 by a bearing portion 7. In this embodiment, the upper frame 31 and the lower frame 32 of the side wall portion 3 are different in height from the upper frame 41 and the lower frame 42 of the rear wall portion 4. When superimposed on the rear surface, the upper frames 31, 41 and the lower frames 32, 42 do not interfere with each other. The other side wall portion 2 is held in a posture perpendicular to the rear wall portion 4 and is integrally connected and fixed to a side edge of the rear wall portion 4.

上記した構成の荷運搬台車10に対して前面の開放部分より荷の積み降ろしを行う。底板1は両側壁部2,3と後壁部4とで囲まれているので、底板1上に積み込まれた荷は両側壁部2,3と後壁部4とによって転落が阻止される。
荷運搬台車10は、未使用時には嵩張らないように折り畳み、多数台を前後に重ねてストックする。折り畳みに際しては、底板1は後壁部4の下枠42を支点として上方へ回動させて後壁部4の前面に折り畳む。一方の側壁部3は後方側の側枠34を支点として後方へ回動させて後壁部4の後面に折り畳む。この場合に、側壁部3の上枠31および下枠32は後壁部4の上枠41および下枠42と上下方向に位置がずれているので、上枠31,41同士、下枠32,42同士がそれぞれ重なって干渉することがなく、側壁部3を十分深く折り畳むことができる。他方の側壁部2は折り畳めないので、後壁部4とともに組立て姿勢を維持できるので、折り畳み後であっても転倒することがなく、折り畳んだ荷運搬台車10を多数台前後に重ねるようにして格納場所にストックできる。
The loading / unloading of the load transporting trolley 10 having the above-described configuration is performed from the open front portion. Since the bottom plate 1 is surrounded by the side walls 2, 3 and the rear wall 4, the load loaded on the bottom plate 1 is prevented from falling by the side walls 2, 3 and the rear wall 4.
The load carrier 10 is folded so as not to be bulky when not in use, and a large number of units are stacked back and forth to stock. At the time of folding, the bottom plate 1 is rotated upward about the lower frame 42 of the rear wall portion 4 as a fulcrum, and folded on the front surface of the rear wall portion 4. One of the side wall portions 3 is rotated rearward with the rear side frame 34 as a fulcrum, and folded on the rear surface of the rear wall portion 4. In this case, since the upper frame 31 and the lower frame 32 of the side wall portion 3 are vertically displaced from the upper frame 41 and the lower frame 42 of the rear wall portion 4, the upper frames 31 and 41, the lower frame 32, The side walls 3 can be folded sufficiently deep without overlapping each other. Since the other side wall 2 is not foldable, the assembling posture can be maintained together with the rear wall 4 so that even after folding, the folded side of the plurality of load carriers 10 can be stored back and forth. Can be stocked in place.

この発明の一実施例である荷運搬台車の正面図である。1 is a front view of a load carrier according to an embodiment of the present invention. 荷運搬台車の右側面図である。It is a right view of a load carrier. 荷運搬台車を上下二段に積み上げた状態を示す左側面図である。It is a left view which shows the state which carried the load transport trolley up and down two steps. 係合金具が上枠に係合した状態を拡大して示す左側面図である。It is a left view which expands and shows the state which the engagement metal fittings engaged with the upper frame. 係合金具が上枠に係合する状態を示す断面図である。。It is sectional drawing which shows the state which an engagement metal fitting engages with an upper frame. . ストッパーの他の実施例を示す左側面図である。It is a left view which shows the other Example of a stopper. 底板に設けられた吊り金具を拡大して示す断面図である。It is sectional drawing which expands and shows the hanging hardware provided in the bottom plate. 荷運搬台車の平面図である。It is a top view of a load carrier. 受け金具に底板が係合した状態を示す断面図である。It is sectional drawing which shows the state which the bottom plate was engaged with the receiving fixture. 連結金具の構成を拡大して示す底板の下面図である。It is a bottom view of the bottom plate which expands and shows the structure of a connection metal fitting.

符号の説明Explanation of reference numerals

1 底板
2,3 側壁部
4 後壁部
5 キャスター
6 保持装置
10 荷運搬台車
21,31 側壁部の上枠
22,32 側壁部の下枠
23,24,33,34 側壁部の側枠
41 後壁部の上枠
42 後壁部の下枠
43,44 後壁部の側枠
60 受け金具
61 連結金具
DESCRIPTION OF SYMBOLS 1 Bottom plate 2, 3 Side wall part 4 Rear wall part 5 Caster 6 Holding device 10 Load carrier 21, 31 Upper frame of side wall part 22, 32 Lower frame of side wall part 23, 24, 33, 34 Side frame 41 of side wall part Rear Upper frame of the wall 42 Lower frame of the rear wall 43, 44 Side frame of the rear wall 60 Receiving bracket 61 Connection bracket

Claims (3)

底板上に左右の側壁部と、各側壁部と直角をなす後壁部とで囲まれた荷積空間を有するキャスター付きの荷運搬台車において、
各側壁部および後壁部は、外周の枠が互いに平行な上枠および下枠と、互いに平行な前後の側枠とから成り、上枠および下枠の前後端部に前後の側枠の上下端部をそれぞれ連結して形成されており、前記底板は、後壁部の前面に折り畳むことが可能なように、その後端部が後壁部の下枠に回動自由に支持され、一方の側壁部は、後壁部の後面に折り畳むことが可能なように、後方側の側枠が後壁部の側端縁に回動自由に支持されるとともに、折り畳み時に側壁部の上枠および下枠が後壁部の上枠および下枠に重ならないようにそれぞれ上下方向に位置ずれし、他方の側壁部は後壁部に対して直角に保持されるように後壁部の側端縁に一体に連結固定されて成る荷運搬台車。
On a bottom plate, on a left and right side wall portion, a load carrier with casters having a loading space surrounded by a rear wall portion perpendicular to each side wall portion,
The side walls and the rear wall portion, the upper frame and the lower frame parallel to each other the frame of the peripheral, consists of a parallel front and rear side frames to each other, the upper and lower front and rear side frame in the front and rear ends of the upper frame and the lower frame The bottom plate is formed by connecting the ends thereof, and the bottom plate is rotatably supported by the lower frame of the rear wall so that the bottom plate can be folded on the front surface of the rear wall . lower wall portion so as to be able to fold the rear surface of the rear wall portion, together with the side frame of the rear side is pivotably supported on the side edge of the rear wall portion, the upper frame of the side wall portion during the folding and The frame is displaced in the vertical direction so that the frame does not overlap the upper frame and the lower frame of the rear wall, and the other side wall is held at the side edge of the rear wall so as to be held at right angles to the rear wall. A load carrier that is integrally connected and fixed .
前記底板は、水平な状態となるように前端部の両側が保持装置により保持されており、前記保持装置は、底板に対する下向きの力を支える第1の支持手段と、底板に対する上向きの力を支える第2の支持手段とを含んでいる請求項1に記載された荷運搬台車。   The bottom plate is held on both sides of a front end by a holding device so as to be in a horizontal state, and the holding device supports first supporting means for supporting a downward force on the bottom plate, and supporting an upward force on the bottom plate. 2. A load carrier according to claim 1, including a second support means. 前記第1の支持手段は、底板の前端部の両側を下方より支持する受け金具であり、第2の支持手段は、底板の前端部の両側と両側壁部とを連結する連結金具である請求項2に記載された荷運搬台車。
The first support means is a receiving bracket for supporting both sides of the front end of the bottom plate from below, and the second support means is a connection fitting for connecting both sides of the front end of the bottom plate to both side walls. Item 2. A load carrier according to Item 2.
JP2003350996A 2003-10-09 2003-10-09 Load carrier Expired - Fee Related JP3593541B1 (en)

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