JP4381320B2 - Foldable cart - Google Patents
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- JP4381320B2 JP4381320B2 JP2005032686A JP2005032686A JP4381320B2 JP 4381320 B2 JP4381320 B2 JP 4381320B2 JP 2005032686 A JP2005032686 A JP 2005032686A JP 2005032686 A JP2005032686 A JP 2005032686A JP 4381320 B2 JP4381320 B2 JP 4381320B2
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Description
本発明は、荷支持台の三側辺から立ち上がるパネルを備え、使用しないときに水平方向に入れ子式にネスティングできる平面視L形に折り畳むことができる荷運搬台車に関するものである。 The present invention relates to a load carrying carriage that includes a panel that rises from three sides of a load support base and can be folded into an L shape in plan view that can be nested in a horizontal direction when not in use.
この種の折り畳み可能な荷運搬台車は、図1Aに示すように、荷支持台1、この荷支持台1の後側辺から立ち上がる背パネル2、荷支持台1の左右両側辺から立ち上がる側パネル3,4、及び背パネル2の左右両端下側と左右両側パネルの前端下側とに配設された車輪5a〜5dを備え、荷支持台1は背パネル2の内側に沿う起立姿勢に折り畳み可能に支承され、片側の側パネル4は折り畳まれた荷支持台1を背パネル2との間で挟むように内側へ折り畳み可能に支承されている。而して、使用状態において荷支持台1の左右両側辺は、平行姿勢にある左右両側パネル3,4の下辺部材6に支持されているが、フォークリフトでこの荷運搬台車を持ち上げて移動させるときにフォークリフトで支持される荷支持台1に対して左右両側パネル3,4が背パネル2と一体に重力で下方に揺動するのを防止する必要がある。このため、平行姿勢にある左右両側パネル3,4の下辺部材6に荷支持台1の左右両側辺が支持されている状態において、左右両側パネル3,4と荷支持台1とを上下方向に関して結合する結合手段が併設されるのであるが、従来のこの種の荷運搬台車における左右両側パネル3,4と荷支持台1との結合手段は、例えば特許文献1に記載されるように、左右両側パネル3,4の下辺部材6の内側辺から上向きに突出する係止板を突設し、荷支持台1の左右両側部に前記係止板の係止孔に対して左右水平向きに嵌脱自在の係止ピンを設けたものであった。
上記のような従来の左右両側パネル3,4と荷支持台1との結合手段では、平面視L形に折り畳んだ複数台の荷運搬台車どうしを水平方向に入れ子式にネスティングするとき、片側の折り畳まれない側パネル3の下辺部材6の内側辺から立ち上がる係止板が、その内側にネスティングされる荷運搬台車の折り畳まれない側パネル3の下辺部材6の外側面に摺接して当該側パネル3の下辺部材6の外側面を傷つけたり、係止板そのものが変形して後の使用に差し支える恐れがあった。 In the conventional means for connecting the left and right side panels 3 and 4 and the load support base 1 as described above, when a plurality of load carrying carts folded in an L shape in plan view are nested in a horizontal direction, The locking plate that rises from the inner side of the lower side member 6 of the side panel 3 that is not folded is in sliding contact with the outer side surface of the lower side member 6 of the side panel 3 that is not folded of the load carrying cart nested inside the side panel. 3, the outer surface of the lower side member 6 may be damaged, or the locking plate itself may be deformed to support later use.
本発明は上記のような従来の問題点を解消し得る折り畳み可能な荷運搬台車を提供することを目的とするものであって、その手段を後述する実施形態の参照符号を付して示すと、請求項1に記載の発明では、荷支持台1、この荷支持台1の後側辺から立ち上がる背パネル2、荷支持台1の左右両側辺から立ち上がる側パネル3,4、及び背パネル2の左右両端下側と左右両側パネル3,4の前端下側とに配設された車輪5a〜5dを備え、荷支持台1は背パネル2の内側に沿う起立姿勢に折り畳み可能に支承され、片側の側パネル4は折り畳まれた荷支持台1を背パネル2との間で挟むように内側へ折り畳み可能に支承された荷運搬台車であって、左右両側パネル3,4の前端に立設されている垂直支柱7aの下端部に水平内向きに開口する被係合凹部36が設けられ、荷支持台1の左右両側部には、この荷支持台1の左右両側辺が左右両側パネルの下辺部材6に支持された状態において、前記被係合凹部36に対し左右横方向に嵌脱自在な係止具29が設けられ、当該係止具29が前記被係合凹部36に嵌合した状態において荷支持台1の上動が左右両側パネル3,4の前記垂直支柱7aで阻止される構成となっている。 The object of the present invention is to provide a foldable load carrying cart that can solve the above-mentioned conventional problems, and the means thereof is shown with reference numerals of embodiments to be described later. In the invention described in claim 1, the load support base 1, the back panel 2 rising from the rear side of the load support base 1, the side panels 3 and 4 rising from the left and right sides of the load support base 1, and the back panel 2 Wheel 5a to 5d disposed on the lower side of the left and right ends and the lower side of the left and right side panels 3 and 4, and the load support 1 is foldably supported in a standing posture along the inner side of the back panel 2, The side panel 4 on one side is a load carrying carriage supported so as to be folded inward so that the folded load support base 1 is sandwiched between the back panel 2 and is erected at the front ends of the left and right side panels 3, 4. Open horizontally inward at the lower end of the vertical strut 7a Engagement recesses 36 are provided, and the left and right sides of the load support base 1 are provided on the left and right sides of the load support base 1 in the state where the left and right side panels are supported by the lower side members 6. On the other hand, there is provided a latching tool 29 that can be fitted / removed in the left / right lateral direction, and when the latching tool 29 is fitted in the engaged recess 36, the upward movement of the load support base 1 is applied to the left / right side panels 3, 4 It is configured to be blocked by the vertical column 7a .
尚、この種の折り畳み可能な荷運搬台車においては、左右両側パネル3,4の内、折り畳まれない側の側パネル3は、背パネル2に対してほぼ直角の姿勢に固定し、折り畳まれる側の側パネル4は、背パネル2に対してほぼ直角の姿勢と背パネル2の内側に折り畳まれた姿勢との間でのみ揺動可能に支承して、左右両側パネル3,4が平行姿勢から外側には揺動しないように構成でき、荷支持台1を支持する状態の折り畳まれる側の側パネル4が内側(折り畳み方向)に揺動することは荷支持台1で阻止できるものである。 In this type of foldable cart, the left and right side panels 3, 4, the side panel 3 that is not folded, is fixed at a substantially right angle with respect to the back panel 2 and can be folded. The side panel 4 is supported so as to be swingable only between a posture substantially perpendicular to the back panel 2 and a posture folded inside the back panel 2, so that the left and right side panels 3, 4 are in a parallel posture. It can be configured not to swing outward, and the load support base 1 can prevent the side panel 4 on the folding side supporting the load support base 1 from swinging inward (folding direction).
従って、左右両側パネル3,4の下辺部材6が荷支持台1を支持する使用状態においては、左右両側パネル3,4の水平揺動を規制する手段は基本的に無くとも良いことになるが、左右両側パネル3,4の内、特に折り畳まれる側の側パネル4を、背パネル2に対してほぼ直角の姿勢から内側へのみ揺動可能に構成することは強度面で非常に無理があり、実用上は、使用状態において左右両側パネル3,4の水平揺動を規制する手段を別途付加することが必要になる。このような場合、請求項3に記載のように、少なくとも折り畳まれる側の前記車輪5dを含む側パネル4には、上下方向の被係合凹部(開口部14または貫通孔37)を設け、荷支持台1の側部には、この荷支持台1の左右両側辺が左右両側パネル3,4の下辺部材6に支持されたときに前記上下方向の被係合凹部(開口部14または貫通孔37)に嵌合する下向きの係止突起28を突設することができる。 Therefore, in the state of use in which the lower side members 6 of the left and right side panels 3 and 4 support the load support 1, there is basically no need to restrict the horizontal swing of the left and right side panels 3 and 4. It is very difficult in terms of strength to construct the left and right side panels 3, 4, especially the side panel 4 on the side to be folded, so that it can only swing inward from a substantially right angle to the back panel 2. In practice, it is necessary to separately add a means for restricting horizontal swing of the left and right side panels 3 and 4 in use. In such a case, as described in claim 3, the side panel 4 including at least the wheel 5d to be folded is provided with a recessed portion (opening 14 or through hole 37) in the vertical direction, On the side of the support base 1, when the left and right sides of the load support base 1 are supported by the lower side members 6 of the left and right side panels 3, 4, the vertically engaged recesses (opening 14 or through-holes) are provided. 37) can be provided so as to project downward.
具体的には、請求項4に記載のように、前記上下方向の被係合凹部として、側パネル4(または左右両側パネル3,4)の前端下側の車輪5d(または5c,5d)の取付用座板10d(または10c,10d)が備える上下方向の開口部14を利用することができるし、請求項5に記載のように、前記上下方向の被係合凹部として、側パネル4(または左右両側パネル3,4)の下辺部材6に上下方向の貫通孔37を設けることができる。 Specifically, as described in claim 4, as the engaged recess in the vertical direction, the wheel 5d (or 5c, 5d) below the front end of the side panel 4 (or the left and right side panels 3, 4) is used. The vertical opening 14 provided in the mounting seat 10d (or 10c, 10d) can be used. As described in claim 5, the side panel 4 ( Or the through-hole 37 of an up-down direction can be provided in the lower-side member 6 of right-and-left both-side panel 3, 4).
また、この種の折り畳み可能な荷運搬台車では、ネスティングが容易且つ円滑に行えるように、各車輪5a〜5dの取付用座板10a〜10dと各パネル2〜4の下辺部材6との間にはシムプレートが介装されるのであるが、請求項6に記載のように、背パネル2の左右両端下側の車輪5a,5bの取付用座板10a,10bと当該背パネル2の下辺部材6との間にはシムプレート15,16を介装し、左右両側パネル3,4の前端下側の車輪5c,5dの取付用座板10c,10dには、当該左右両側パネル3,4の下辺部材6と重なる部分において、前記シムプレート15,16の厚さ分だけ一段高い上段取付面11を形成し、左右両側パネル3,4の前端下側の車輪取付用座板10c,10dは、シムプレートを介さずに前記上段取付面11において左右両側パネル3,4の下辺部材6に取り付けることができる。 Moreover, in this kind of foldable load carrier cart, between the seats 10a to 10d for attachment of the wheels 5a to 5d and the lower side members 6 of the panels 2 to 4 so that nesting can be performed easily and smoothly. A shim plate is interposed, but as described in claim 6, seats 10a and 10b for mounting the wheels 5a and 5b on the lower sides of the left and right ends of the back panel 2 and a lower side member of the back panel 2 6, shim plates 15 and 16 are interposed, and mounting seats 10c and 10d of the wheels 5c and 5d below the front ends of the left and right side panels 3 and 4 are connected to the left and right side panels 3 and 4, respectively. In a portion overlapping the lower side member 6, an upper mounting surface 11 that is one step higher by the thickness of the shim plates 15, 16 is formed, and wheel mounting seats 10 c, 10 d below the front ends of the left and right side panels 3, 4 are Mounting the upper stage without a shim plate It can be attached to the lower side member 6 of the left and right sides panels 3 at 11.
請求項1に記載の本発明に係る折り畳み可能な荷運搬台車によれば、左右両側パネルの下辺部材で荷支持台の左右両側辺を支持する使用状態において、荷支持台をフォークリフトで持ち上げたときに左右両側パネルが背パネルと共に荷支持台に対して下方に揺動するのを防止するための結合手段が、左右両側パネルの下辺部材そのものと、荷支持台の左右両側部に設けられた左右横方向に出退自在な係止具とから構成されており、平面視L形に折り畳んだ荷運搬台車の入り隅側、即ち、ネスティング時に他の折り畳まれた荷運搬台車を受け入れる側に突出するような部材を必要とするものではなく、前記係止具は、背パネルと折り畳まれた片側の側パネルとの間に挟まれる荷支持台が備えているので、従来のように、複数台の荷運搬台車どうしを水平方向に入れ子式にネスティングするときに、左右両側パネルと荷支持台とを上下方向に関して結合する結合手段の構成部材によって他の荷運搬台車の外側面に傷がついたり、当該構成部材そのものが変形して後の使用に差し支えるような事態を招く恐れがなくなる。 According to the foldable load carrying cart according to the present invention as set forth in claim 1, when the load support base is lifted by a forklift in a use state in which the left and right sides of the load support base are supported by the lower side members of the left and right side panels. The left and right side panels are connected to the bottom members of the left and right side panels and the left and right side parts of the load support base. It is composed of a locking tool that can be withdrawn and retracted in the lateral direction, and protrudes into the corner of the load carrying cart folded into an L shape in plan view, that is, the side that receives another folded load carrying cart during nesting. Such a member is not required, and the locking device is provided with a load supporting base sandwiched between the back panel and the folded one side panel. How to carry a truck When the nesting is horizontally nested, the outer side surface of the other cargo carrier cart may be damaged by the structural member of the coupling means that couples the left and right side panels and the load support base in the vertical direction. There fear is not causing such a situation that hinder the use of later deformation.
更に本発明によれば、荷支持台側に必要な係止具を当該荷支持台の厚さの領域内に配設することができ、荷支持台の下側に突出する状態に配設しなければならない場合と比較して、係止具が他物との接触などにより変形したり破損するような恐れが少なくなる。 Further, according to the present invention, the necessary locking tool on the load support base side can be disposed within the thickness region of the load support base, and is disposed so as to protrude below the load support base. Compared with the case where it is necessary, the risk that the locking tool is deformed or damaged due to contact with other objects is reduced.
請求項1に記載の本発明を実施する場合、請求項3に記載の構成によれば、使用状態における側パネルの水平揺動を、側パネル側の上下方向の被係合凹部とこれに嵌合する荷支持台側の下向きの係止突起とで規制することができ、使用状態において側パネルに作用する外向きの外力に対して十分な耐力を容易に得ることができる。この場合、請求項4に記載の構成によれば、車輪取付用座板が備える上下方向の開口部を側パネル側の被係合凹部に利用するのであるから、当該被係合凹部を側パネル側に構成するために特別な部材や加工が不要であり、構造が極めてシンプルで非常に安価に実施することができる。また、請求項5に記載の構成においても、前記被係合凹部を側パネルの下辺部材に上下方向の貫通孔を設けるだけで構成することができ、やはり安価に実施することができる。 When carrying out the present invention described in claim 1, according to the configuration described in claim 3, the horizontal swing of the side panel in the usage state is fitted to the engaged recess in the vertical direction on the side panel side and this. It can be regulated by the downward locking protrusion on the side of the load support base to be combined, and sufficient proof strength can be easily obtained against the outward external force acting on the side panel in the use state. In this case, according to the configuration of the fourth aspect, since the vertical opening provided in the wheel mounting seat plate is used as the engaged recess on the side panel side, the engaged recess is used as the side panel. Since no special member or processing is required for the construction on the side, the structure is extremely simple and can be implemented at a very low cost. Also, in the configuration according to the fifth aspect, the engaged recess can be configured only by providing a through-hole in the vertical direction in the lower side member of the side panel, which can also be implemented at low cost.
また、請求項1に記載の本発明によれば、前記のように左右両側パネルの下辺部材の内側辺から起立する係止板が不要になるのであるが、従来はこの係止板を、左右両側パネルの前端下側に車輪取付用座板を取り付ける際に介在させていたシムプレートから連設させていたので、この従来の構成に本発明を適用させたとき、係止板を連設させていない本来のシムプレートを使用することになるところであるが、この場合に請求項6に記載の構成を採用すれば、左右両側パネルの前端下側にシムプレートを介さずに車輪取付用座板を取り付けることができ、部品点数や組立工数を減らしてコストダウンを図ることができる。しかもシムプレートを介して取り付けたときと同様に、ネスティングを無理なく円滑に行わせることができるのである。 Further, according to the present invention described in claim 1, as described above, the locking plate standing from the inner side of the lower side member of the left and right side panels becomes unnecessary. Since the shim plate that was interposed when the wheel mounting seat plate was attached to the lower side of the front end of the both side panels, when the present invention was applied to this conventional configuration, the locking plate was provided continuously. In this case, if the structure according to claim 6 is adopted, a wheel mounting seat plate is not provided under the front end of the left and right side panels without using a shim plate. Can be attached, and the number of parts and assembly man-hours can be reduced to reduce costs. In addition, nesting can be performed smoothly and smoothly as in the case of attachment through a shim plate.
荷運搬台車全体の構成は、図1Aに示す従来のものと基本的に同一であって、荷支持台1、背パネル2、左右両側パネル3,4、車輪5a〜5dから成るもので、各パネル2〜4は、門形周囲枠材7、この門形周囲枠材7の前後の垂直支柱の下端間をつなぐ下辺部材6、門形周囲枠材7の上端水平部材と下辺部材6との間に適当間隔おきに架設された縦桟材8、及び門形周囲枠材7の前後の垂直支柱間に上下複数段に架設された横桟材9から構成されている。 The overall structure of the load carrying carriage is basically the same as that of the conventional one shown in FIG. 1A, and includes a load support base 1, a back panel 2, left and right side panels 3, 4 and wheels 5a to 5d. The panels 2 to 4 are composed of a gate-shaped peripheral frame member 7, a lower side member 6 connecting the lower ends of the vertical pillars before and after the portal-shaped peripheral frame member 7, and an upper horizontal member and a lower side member 6 of the portal-shaped peripheral frame member 7. It is composed of a vertical beam member 8 installed at an appropriate interval in between, and a horizontal beam member 9 installed in a plurality of vertical stages between vertical struts before and after the portal frame member 7.
以下、本発明の具体的実施例を図1B〜図7に基づいて説明すると、各パネル2〜4の下辺部材6は、門形周囲枠材7や縦桟材8の外側に沿って起立する垂直板部と、各パネル2〜4の内側(荷支持台1のある側)へ延出する水平板部とを有するアングル材で構成され、背パネル2の下辺部材6の両端下側に車輪5a,5bの取付座板10a,10bが取り付けられ、左右両側パネル3,4の下辺部材6の前端近傍下側に車輪5c,5dの取付座板10c,10dが取り付けられている。 Hereinafter, specific examples of the present invention will be described with reference to FIGS. 1B to 7. The lower side members 6 of the panels 2 to 4 stand along the outside of the gate-shaped peripheral frame member 7 and the vertical beam member 8. It is composed of an angle member having a vertical plate portion and a horizontal plate portion extending to the inside of each of the panels 2 to 4 (the side on which the load support base 1 is located), and wheels are provided below both ends of the lower side member 6 of the back panel 2. Mounting seats 10a and 10b of 5a and 5b are attached, and mounting seats 10c and 10d of wheels 5c and 5d are attached to the lower side near the front end of the lower side member 6 of the left and right side panels 3 and 4.
各車輪取付座板10a〜10dは正方形の同一構造のもので、図4に示すように、一側辺から各パネル2〜4の下辺部材6の巾(水平板部の巾)分だけが他の表面より一段高く形成されて、上段取付面11と下段取付面12とに分けられている。尚、各車輪取付座板10a〜10dの中央には、これら車輪取付座板10a〜10dの下側に取り付けられる車輪(自在車輪)5a〜5dの回転垂直軸心となる筒軸13の上端がカシメにより固着され、当該筒軸13によって上下方向の開口部14が形成されている。而して、図2及び図3に示すように、背パネル2の両端下側に配置される車輪5a,5bの取付座板10a,10bは、その上段取付面11が内側で互いに並列する状態に左右対称に配置されると共に、それぞれの下段取付面12の上に上段取付面11との間の段差を丁度埋める厚さのシムプレート15,16が重ねられ、これらシムプレート15,16の後端部と上段取付面11の後端部との上に背パネル2の下辺部材6の両端が重なる状態で、当該背パネル2の下辺部材6に車輪取付座板10a,10bがボルトナット17,18により取り付けられている。 Each wheel mounting seat plate 10a to 10d has the same structure of a square, and as shown in FIG. 4, only the width of the lower side member 6 of each panel 2 to 4 (the width of the horizontal plate portion) is from one side. The upper mounting surface 11 and the lower mounting surface 12 are separated from each other. At the center of each wheel mounting seat plate 10a to 10d, there is an upper end of the cylinder shaft 13 that serves as a rotation vertical axis of the wheels (universal wheels) 5a to 5d mounted below the wheel mounting seat plates 10a to 10d. The cylindrical shaft 13 is fixed by caulking and an opening 14 in the vertical direction is formed. Thus, as shown in FIGS. 2 and 3, the mounting seats 10a and 10b of the wheels 5a and 5b disposed below the both ends of the back panel 2 are in a state in which the upper mounting surfaces 11 are parallel to each other on the inner side. The shim plates 15, 16 having a thickness that just fills the step between the upper mounting surface 11 and the lower mounting surface 12 are superimposed on the lower mounting surface 12. In a state where both ends of the lower side member 6 of the back panel 2 overlap the end portion and the rear end portion of the upper mounting surface 11, the wheel mounting seats 10 a and 10 b are bolt nuts 17 on the lower side member 6 of the back panel 2. 18 is attached.
前記シムプレート15,16には、背パネル2の下辺部材6から前方に突出する部分に垂直ピン19,20が突設されている。これら垂直ピン19,20は、その下端が各車輪取付座板10a,10bにも受けられた孔に嵌合することにより、これらシムプレート15,16の周り止めを兼ねている。また、側パネル3側のシムプレート15は、その下側の車輪取付座板10aから更に前方に所要長さだけ延出する延出部15aを備えている。 On the shim plates 15 and 16, vertical pins 19 and 20 are projected from a portion protruding forward from the lower side member 6 of the back panel 2. The vertical pins 19 and 20 also serve as stoppers for the shim plates 15 and 16 by having their lower ends fitted into holes that are also received by the wheel mounting seats 10a and 10b. Further, the shim plate 15 on the side panel 3 side includes an extension portion 15a that extends further forward from the lower wheel mounting seat plate 10a by a required length.
左右両側パネル3,4の前端近傍下側に配置される車輪5c,5dの取付座板10c,10dは、その上段取付面11が外側で互いに並列する状態に左右対称に配置され、これら上段取付面11の上に左右両側パネル3,4の下辺部材6が重なる状態で、当該左右両側パネル3,4の下辺部材6に車輪取付座板10c,10dがボルトナット21,22により取り付けられている。尚、左右両側パネル3,4の下辺部材6に対する車輪取付座板10c,10dの取付位置は、左右両側パネル3,4の下辺部材6がこれら車輪取付座板10c,10dよりも前方に所要距離だけ突出する位置となっている。 The mounting seats 10c and 10d of the wheels 5c and 5d disposed on the lower side in the vicinity of the front ends of the left and right side panels 3 and 4 are disposed symmetrically so that the upper mounting surfaces 11 are parallel to each other on the outside. Wheel mounting seats 10c and 10d are attached to the lower side members 6 of the left and right side panels 3 and 4 by bolt nuts 21 and 22 in a state where the lower side members 6 of the left and right side panels 3 and 4 overlap the surface 11. . The mounting positions of the wheel mounting seats 10c and 10d with respect to the lower side members 6 of the left and right side panels 3 and 4 are such that the lower side members 6 of the left and right side panels 3 and 4 have a required distance ahead of these wheel mounting seats 10c and 10d. It is a position that only protrudes.
左右両側パネル3,4の下辺部材6の後端部は、前記背パネル2の左右両端下側の車輪取付座板10a,10b上のシムプレート15,16から突設されている垂直ピン19,20に左右揺動自在に嵌合している。この垂直ピン19,20の嵌合位置は、左右両側パネル3,4の門形周囲枠材7における後端側の垂直支柱7bを構成している丸パイプ材と同心位置で、垂直ピン19,20は当該垂直支柱7bの下端部中心位置に嵌合している。そして折り畳まれない側の側パネル3は、その下辺部材6がシムプレート15の延出部15aの先端部とボルトナット23により結合されることにより、垂直ピン19とボルトナット23との2点で背パネル2に対してほぼ直角向きに固定されている。 The rear ends of the lower side members 6 of the left and right side panels 3 and 4 are vertical pins 19 projecting from shim plates 15 and 16 on the wheel mounting seats 10a and 10b below the left and right ends of the back panel 2. 20 is slidably fitted to the left and right. The fitting positions of the vertical pins 19 and 20 are concentric with the round pipe member constituting the vertical column 7b on the rear end side of the portal frame member 7 of the left and right side panels 3 and 4, and the vertical pins 19 and 20 20 is fitted in the center position of the lower end of the vertical column 7b. The side panel 3 on the unfolded side is joined at two points of the vertical pin 19 and the bolt nut 23 by connecting the lower side member 6 with the tip of the extending portion 15a of the shim plate 15 and the bolt nut 23. The back panel 2 is fixed at a substantially right angle.
尚、図1に示すように、左右両側パネル3,4の門形周囲枠材7における後端側の垂直支柱7bと当該垂直支柱7bの真後ろに位置する背パネル2の門形周囲枠材7における左右両端の垂直支柱7a,7bとは、従来周知のとおり連結部材24,25により連結されている。これら連結部材24,25は、背パネル2の門形周囲枠材7における左右両端の垂直支柱7a,7bに対しては直角前方向きに固着されているが、折り畳まれる側の側パネル4がその門形周囲枠材7における後端側の垂直支柱7b(垂直ピン20)を軸にして左右に揺動するのを妨げない。折り畳まれない側の側パネル3の門形周囲枠材7における後端側の垂直支柱7bは、連結部材24に固着されていても良い。 As shown in FIG. 1, the vertical column 7b on the rear end side of the portal frame member 7 of the left and right side panels 3 and 4, and the portal frame 7 of the back panel 2 positioned immediately behind the vertical column 7b. As shown in the related art, the vertical support columns 7a and 7b at the left and right ends of the are connected by connecting members 24 and 25, respectively. These connecting members 24 and 25 are fixed to the vertical pillars 7a and 7b at the left and right ends of the portal frame member 7 of the back panel 2 in a right-angled front direction, but the side panel 4 on the side to be folded is It does not hinder the left and right swinging around the vertical column 7b (vertical pin 20) on the rear end side of the gate-shaped peripheral frame member 7 as an axis. The vertical struts 7b on the rear end side of the gate-shaped peripheral frame member 7 of the side panel 3 on the unfolded side panel 3 may be fixed to the connecting member 24.
背パネル2の下辺部材6には、図3に示すように適当間隔を隔てて2つの水平支軸26が片持ち状に付設されており、荷支持台1の後側辺には、図1Bに示すように前記2つの水平支軸26に対して同時に嵌合可能に2つの筒軸27が付設されている。而して荷支持台1は、両筒軸27を背パネル2側の2つの水平支軸26に嵌合させることにより、背パネル2の下辺部材6に対して前記水平支軸26の周りで上下揺動自在に支承されるが、図1Bに示すように、左右両側パネル3,4が背パネル2に対して直角前方に延出する平行姿勢にある状態で荷支持台1を前方下方に回倒させることにより、当該荷支持台1の左右両側辺が左右両側パネル3,4の下辺部材6の水平板部に支持されるように構成されている。 As shown in FIG. 3, two horizontal support shafts 26 are attached to the lower side member 6 of the back panel 2 at an appropriate interval in a cantilevered manner. As shown in FIG. 2, two cylindrical shafts 27 are attached to the two horizontal support shafts 26 so that they can be fitted simultaneously. Thus, the load support base 1 is fitted around the horizontal support shaft 26 with respect to the lower side member 6 of the back panel 2 by fitting both the cylinder shafts 27 to the two horizontal support shafts 26 on the back panel 2 side. As shown in FIG. 1B, the left and right side panels 3 and 4 are placed in a parallel posture extending at a right angle forward with respect to the back panel 2 as shown in FIG. 1B. By being turned over, the left and right sides of the load support base 1 are configured to be supported by the horizontal plate portion of the lower side member 6 of the left and right side panels 3 and 4.
図1B、図6及び図7に示すように荷支持台1の左右両側部には、平行姿勢の左右両側パネル3,4の下辺部材6で荷支持台1の左右両側辺が支持されたときに、左右両側パネル3,4の前端下側に取り付けられている車輪取付座板10c,10dの中央の上下方向の開口部14に嵌合する左右一対の係止突起28が底部から下向きに突設されると共に、図1B及び図5に示すように、当該車輪取付座板10c,10dよりも前方に突出する左右両側パネル3,4の下辺部材6の下側空間に対して出退自在な左右一対の係止具29が底部に設けられている。 As shown in FIGS. 1B, 6 and 7, when the left and right sides of the load support base 1 are supported on the left and right sides of the load support base 1 by the lower side members 6 of the left and right side panels 3 and 4 in a parallel posture. In addition, a pair of left and right locking projections 28 that fit into the vertical opening 14 at the center of the wheel mounting seats 10c and 10d attached to the lower side of the front ends of the left and right side panels 3 and 4 protrude downward from the bottom. As shown in FIGS. 1B and 5, the left and right side panels 3 and 4 projecting forward from the wheel mounting seats 10c and 10d are freely retractable from the lower space 6 of the lower side member 6. A pair of left and right locking tools 29 are provided at the bottom.
係止具29は、図5に示すように、荷支持台1の底部に取り付けられた溝形材30の左右両側垂直板部30a,30bを左右横方向に移動自在に貫通する軸杆31から構成され、当該軸杆31の内端から直角に折曲形成された操作レバー部32を備えている。また、軸杆31には、溝形材30の左右両側垂直板部30a,30b間の間隔とほぼ同一間隔で操作レバー部32と左右一対の突起33a,33bが設けられている。操作レバー部32側の突起33bは、当該操作レバー部32と同一向きに突設され、他方の突起33aは操作レバー部32とは逆向きに突設されている。そして溝形材30の左右両側垂直板部30a,30bの内、内側の垂直板部30bには、操作レバー部32を垂下姿勢から手前前方にほぼ90度回転させたときに前記突起33bを垂直板部30bから外側へ抜き出すことができる切り欠き凹部34が設けられている。 As shown in FIG. 5, the locking tool 29 includes a shaft rod 31 that passes through the left and right vertical plate portions 30 a and 30 b of the groove member 30 attached to the bottom of the load support base 1 movably in the left and right directions. The operation lever portion 32 is configured and is bent at a right angle from the inner end of the shaft 31. Further, the shaft rod 31 is provided with an operation lever portion 32 and a pair of left and right projections 33a and 33b at substantially the same interval as the interval between the left and right vertical plate portions 30a and 30b of the groove member 30. The protrusion 33 b on the operation lever portion 32 side protrudes in the same direction as the operation lever portion 32, and the other protrusion 33 a protrudes in the opposite direction to the operation lever portion 32. Of the vertical plate portions 30a and 30b on both the left and right sides of the groove member 30, the projection 33b is vertically formed on the inner vertical plate portion 30b when the operation lever portion 32 is rotated approximately 90 degrees forward from the hanging posture. A notch recess 34 that can be pulled out from the plate portion 30b is provided.
上記構成の折り畳み可能な荷運搬台車は、使用していないとき、図2に示すように荷支持台1を背パネル2の内側に沿って起立する姿勢に折り畳むと共に、その起立姿勢の荷支持台1を背パネル2との間で挟むように、折り畳みできる側の側パネル4を内側へほぼ90度水平に揺動させ、全体を平面視L形に折り畳むことができる。この折り畳み状態では、折り畳まれない側の側パネル3の下辺部材6から内側に突出する部材は、車輪取付用座板10cを除いて何も存在しない。また、左右両側パネル3,4の下辺部材6の下側面は、車輪取付用座板10a〜10dの上段取付面11の上面と同一レベルのシムプレート15,16の上面と同一レベルであって、これら左右両側パネル3,4の前側の車輪取付用座板10c,10dで下辺部材6から内側に突出する下段取付面12よりもシムプレート15,16の厚さ分だけ高いので、上記のように荷運搬台車を折り畳んだとき、折り畳まれる側の側パネル4の前側の車輪取付用座板10dで下辺部材6から突出する部分(下段取付面12の部分)は、背パネル2の下辺部材6の下側に無理なく進入する。また、同様に折り畳んだ別の荷運搬台車を、平面視L形の内側(入り隅側)に入れ子式に水平にネスティングさせるとき、内側の荷運搬台車の折り畳まれない側パネル3の下辺部材6は、外側の荷運搬台車の折り畳まれない側パネル3の前側の車輪取付用座板10cの下辺部材6から突出する部分(下段取付面12の部分)の上に無理なく重なることができる。 When the foldable load carrying cart having the above-described configuration is not in use, the load supporting table 1 is folded in a posture of standing along the inner side of the back panel 2 as shown in FIG. The side panel 4 on the foldable side can be swung horizontally by approximately 90 degrees so that 1 is sandwiched between the back panel 2 and the whole can be folded into an L shape in plan view. In this folded state, there is no member that protrudes inwardly from the lower side member 6 of the side panel 3 that is not folded, except for the wheel mounting seat plate 10c. The lower side surfaces of the lower side members 6 of the left and right side panels 3 and 4 are at the same level as the upper surfaces of the shim plates 15 and 16 at the same level as the upper surface of the upper mounting surface 11 of the wheel mounting seats 10a to 10d, Since the front wheel mounting seats 10c and 10d of the left and right side panels 3 and 4 are higher than the lower mounting surface 12 projecting inward from the lower side member 6 by the thickness of the shim plates 15 and 16, as described above. When the load carrier cart is folded, the portion (the portion of the lower mounting surface 12) that protrudes from the lower side member 6 of the front wheel mounting seat 10d of the side panel 4 to be folded is the lower side member 6 of the back panel 2. Enter the lower side without difficulty. Similarly, when another load carrier cart folded in the same manner is nested horizontally on the inner side (entrance corner side) of the L shape in plan view, the lower side member 6 of the side panel 3 of the inner load carrier cart that is not folded. Can be reasonably overlapped with a portion (a portion of the lower mounting surface 12) protruding from the lower side member 6 of the wheel mounting seat plate 10c on the front side of the unfolded side panel 3 of the outer cargo carrier cart.
尚、車輪取付用座板10a〜10dは平面視で正方形の全て同一構造同一サイズのものであって、図2で明らかなように、側パネル4を背パネル2と平行な折り畳み姿勢にしたとき、この側パネル4の前側の車輪取付用座板10dが背パネル2の下辺部材6の下側に入り込むが、背パネル2の外側(後ろ側)には突出しないサイズ、換言すれば、各車輪取付用座板10a〜10dの幅(奥行き)は、側パネル4を背パネル2と平行な折り畳み姿勢にしたときの両パネル2,4の下辺部材6の外側面間距離とほぼ同一になるように構成している。また、全ての車輪取付用座板10a〜10dを同一構造に構成しながら、側パネル3,4の下辺部材6と車輪取付用座板10c,10dとの間には、シムプレートが不要な構成となっている。 Note that the wheel mounting seats 10a to 10d are all square and have the same structure and the same size in plan view, and when the side panel 4 is folded parallel to the back panel 2 as is apparent from FIG. The wheel mounting seat 10d on the front side of the side panel 4 enters the lower side of the lower side member 6 of the back panel 2 but does not protrude outside the back panel 2 (in other words, each wheel). The width (depth) of the mounting seats 10a to 10d is substantially the same as the distance between the outer surfaces of the lower side members 6 of the panels 2, 4 when the side panel 4 is folded in parallel with the back panel 2. It is configured. In addition, a configuration in which no shim plate is required between the lower side member 6 of the side panels 3 and 4 and the wheel mounting seat plates 10c and 10d while configuring all the wheel mounting seat plates 10a to 10d in the same structure. It has become.
荷運搬台車の折り畳みのために荷支持台1を起立姿勢まで上方に回転させたとき、荷支持台1の底部で前端部左右両側に位置する左右一対の係止具29は、その操作レバー部32に作用する重力により軸杆31当該操作レバー部32と共に軸杆31の軸心の周りに回転し、操作レバー部32は軸杆31から真下に垂下する状態になるので、図2に示すように、側パネル4の折り畳みやネスティングの邪魔になることはない。荷運搬台車を展開して使用するときは、先ず、折り畳まれている側パネル4を背パネル2に対してほぼ直角前方向きに開動させる。このときの側パネル4の回転中心軸は、当該側パネル4の門形周囲枠材7における背パネル2側の垂直支柱7bであって、背パネル2側の車輪取付用座板10bにシムプレート19を介して固定された状態の垂直ピン20であることは明らかである。 When the load support base 1 is rotated upward to the upright position for folding the load carrying carriage, the pair of left and right locking tools 29 located on the left and right sides of the front end portion of the load support base 1 have their operation lever portions. As shown in FIG. 2, the shaft lever 31 rotates around the shaft center of the shaft rod 31 together with the operation lever portion 32 due to the gravity acting on the shaft rod 32, and the operation lever portion 32 hangs down from the shaft rod 31. In addition, the side panel 4 is not disturbed by folding or nesting. When unfolding and using the load carrying carriage, first, the folded side panel 4 is moved forward substantially perpendicular to the back panel 2. The central axis of rotation of the side panel 4 at this time is a vertical column 7b on the back panel 2 side of the portal peripheral frame member 7 of the side panel 4, and a shim plate is mounted on the wheel mounting seat 10b on the back panel 2 side. It is clear that the vertical pin 20 is fixed via 19.
次に荷支持台1を、背パネル2側の水平支軸30の周りに手前下方に回倒させるのであるが、このとき左右一対の係止具29は、図2及び図5Bに示すように、係止具先端側の突起33aが溝形材30の内側の垂直板部30bに当接すると共に操作レバー部32側の突起33bが溝形材30の外側に抜け出た状態、即ち、後退限位置まで後退させておくことにより、当該係止具29と左右両側パネル3,4の下辺部材6とを干渉させることなく荷支持台1を、その左右両側辺が左右両側パネル3,4の下辺部材6に支持される水平姿勢まで回倒させることができる。 Next, the load support base 1 is rotated forward and downward around the horizontal support shaft 30 on the back panel 2 side. At this time, the pair of left and right locking tools 29 are as shown in FIGS. 2 and 5B. The protrusion 33a on the distal end side of the locking tool abuts on the vertical plate portion 30b on the inner side of the groove member 30 and the protrusion 33b on the operation lever portion 32 side has come out of the groove member 30, that is, the retreat limit position. By retracting the load support base 1 without causing interference between the locking member 29 and the lower side members 6 of the left and right side panels 3 and 4, the left and right side sides of the load supporting base 1 are the lower side members of the left and right side panels 3 and 4, respectively. 6 can be turned down to a horizontal posture supported by the robot.
荷支持台1が展開されて、その左右両側辺が左右両側パネル3,4の下辺部材6に支持されたとき、図6及び図7に示すように、荷支持台1の底部の前端部左右両側に突設されている左右一対の係止突起28が左右両側パネル3,4の前端部下側の車輪取付用座板10c,10dにおける開口部14に自動的に嵌合する、即ち、この実施形態では、車輪取付用座板10c,10dが中央に備えている上下方向の開口部14が、係止突起28が嵌合する上下方向の被係合凹部として利用されている。この左右両側パネル3,4側の開口部(被係合凹部)14に荷支持台1側の係止突起28が嵌合することにより、荷支持台1の左右両側辺を支持した状態の左右両側パネル3,4と荷支持台1とが、前端側において水平方向に関し互いに結合されたことになり、折り畳まれない側パネル3は、背パネル2に対する直角姿勢(平行姿勢)に一層強固に保持され、折り畳まれる側の側パネル4は、垂直ピン20を軸とする左右揺動を阻止されて背パネル2に対する直角姿勢(平行姿勢)に確実に保持される。 When the load support base 1 is unfolded and its left and right sides are supported by the lower side members 6 of the left and right side panels 3, 4, as shown in FIG. 6 and FIG. A pair of left and right locking projections 28 projecting on both sides automatically fits into the openings 14 in the wheel mounting seats 10c and 10d below the front end portions of the left and right side panels 3 and 4, that is, this implementation. In the embodiment, the vertical opening 14 provided in the center of the wheel mounting seats 10c and 10d is used as a vertically engaged recess into which the locking projection 28 is fitted. The left and right sides of the load support base 1 are supported by engaging the locking projections 28 on the load support base 1 side with the openings (engaged recesses) 14 on the left and right side panels 3 and 4 side. The side panels 3 and 4 and the load support base 1 are connected to each other in the horizontal direction on the front end side, and the unfolded side panel 3 is more firmly held in a right-angle posture (parallel posture) with respect to the back panel 2. Then, the side panel 4 on the side to be folded is prevented from swinging left and right around the vertical pin 20 and is securely held in a right angle posture (parallel posture) with respect to the back panel 2.
上記のように荷支持台1の左右両側辺が左右両側パネル3,4の下辺部材6に支持されたならば、図1B及び図5Aに示すように、左右一対の係止具29を後退限位置から進出限位置に切り換える。即ち、荷支持台1が水平姿勢になったことにより重力で回転して荷支持台1から真下に垂下する姿勢にある係止具29の操作レバー部32を、図5Cに仮想線で示すように手前前方へほぼ90度回転させる。この結果、溝形材30から外側に抜け出ている突起33bと溝形材30側の切り欠き凹部34との向きが一致するので、操作レバー部32により係止具29(軸杆31)を外側(左右両側パネル3,4側)へスライドさせ、前記突起33bを切り欠き凹部34から溝形材30内に進入させると同時に他方の突起33aを溝形材30の垂直板部30aに当接させて、係止具29を進出限位置に切り換える。而して、進出限位置に切り換えられた係止具29は、図5Aに示すように左右両側パネル3,4の下辺部材6の下側に入り込み、当該下辺部材6の下側面に隣接することになり、左右両側パネル3,4の下辺部材6で支持された状態の荷支持台1を上方に回動させることができなくなる。換言すれば、荷支持台1をフォークリフトで持ち上げたとき、この荷支持台1に対して左右両側パネル3,4が背パネル2と共に重力で前方下方に回倒することがない。 If the left and right sides of the load support base 1 are supported by the lower side members 6 of the left and right side panels 3 and 4 as described above, as shown in FIGS. Switch from position to advance position. That is, the operation lever portion 32 of the latching tool 29 in a posture that rotates due to gravity and hangs down from the load support table 1 due to the load support table 1 being in a horizontal position is shown by a virtual line in FIG. 5C. Rotate approximately 90 degrees forward and forward. As a result, the direction of the protrusion 33b protruding outward from the groove member 30 and the notch recess 34 on the groove member 30 side coincide with each other, so that the locking tool 29 (shaft 31) is moved outward by the operation lever portion 32. Slide to the left and right side panels 3 and 4 side to allow the projection 33b to enter the groove member 30 from the notch 34 and simultaneously bring the other protrusion 33a into contact with the vertical plate 30a of the groove member 30. Then, the locking tool 29 is switched to the advance limit position. Thus, as shown in FIG. 5A, the locking tool 29 switched to the advance limit position enters the lower side member 6 of the left and right side panels 3, 4 and is adjacent to the lower side surface of the lower side member 6. Thus, the load support base 1 supported by the lower side members 6 of the left and right side panels 3 and 4 cannot be rotated upward. In other words, when the load support base 1 is lifted with a forklift, the left and right side panels 3 and 4 together with the back panel 2 do not fall forward and downward with respect to the load support base 1 due to gravity.
以上のように荷運搬台車を展開して組み立てることにより、荷運搬台車として使用することができるのであるが、この荷運搬台車を図2に示す平面視L形に折り畳んでネスティングするときは、図5Aに示す進出限位置にある左右一対の係止具29を図5Bに示す後退限位置に切り換える。即ち、図5Cに仮想線で示すように、荷支持台1の底部から真下に垂下している係止具29の操作レバー部32を手前前方へほぼ90度回転させる。このとき操作レバー部32に当接してそれ以上の上方への回転を阻止するストッパー35を荷支持台1側に設けておくのが望ましい。この操作により、溝形材30の垂直板部33bの内側に隣接している突起33bと当該垂直板部33bの切り欠き凹部34との向きが一致するので、操作レバー部32により係止具29(軸杆31)を内側へスライドさせ、前記突起33bを切り欠き凹部34から溝形材30の外へ抜出させると同時に他方の突起33aを溝形材30の垂直板部30bに当接させて、係止具29を後退限位置に切り換える。この結果、係止具29と左右両側パネル3,4の下辺部材6との上下方向の重なりが解消し、荷支持台1を上方に回動させることができる。 As described above, the load carrier can be used as a load carrier by unfolding and assembling. However, when this load carrier is folded into an L shape in plan view shown in FIG. The pair of left and right locking tools 29 at the advanced limit position shown in 5A are switched to the backward limit position shown in FIG. 5B. That is, as indicated by a phantom line in FIG. 5C, the operation lever portion 32 of the locking tool 29 hanging down from the bottom of the load support base 1 is rotated approximately 90 degrees forward and forward. At this time, it is desirable to provide a stopper 35 on the load support base 1 side that contacts the operation lever portion 32 and prevents further upward rotation. By this operation, the direction of the protrusion 33b adjacent to the inside of the vertical plate portion 33b of the channel member 30 and the cutout recess 34 of the vertical plate portion 33b coincide with each other. (Shaft 31) is slid inwardly, and the projection 33b is cut out from the recess 34 to the outside of the groove member 30, and the other protrusion 33a is brought into contact with the vertical plate portion 30b of the groove member 30. Then, the locking tool 29 is switched to the retreat limit position. As a result, the overlap in the vertical direction between the locking member 29 and the lower side members 6 of the left and right side panels 3 and 4 is eliminated, and the load support base 1 can be rotated upward.
荷支持台1を上方にほぼ90度回動させて、背パネル2の内側に沿って起立する姿勢に折り畳んだならば、側パネル4を内側へほぼ90度水平に揺動させ、起立姿勢の荷支持台1を背パネル2と折り畳んだ側パネル4とで挟んで、図2に示すように荷運搬台車全体を平面視L形に折り畳むことができる。尚、荷支持台1の上方への回動により、荷支持台1の底部の左右一対の係止突起28は、左右両側パネル3,4の前端部下側の車輪取付用座板10c,10dが備える開口部(被係止凹部)14から自動的に抜出する。 If the load support base 1 is turned upward by approximately 90 degrees and folded in a posture that stands up along the inside of the back panel 2, the side panel 4 is swung horizontally by approximately 90 degrees in the upright posture. By sandwiching the load support base 1 between the back panel 2 and the folded side panel 4, the entire load carrying carriage can be folded into an L shape in plan view as shown in FIG. The pair of left and right engaging projections 28 at the bottom of the load support base 1 are turned by the wheel mounting seats 10c and 10d below the front end portions of the left and right side panels 3 and 4 by the upward rotation of the load support base 1. It is automatically extracted from the provided opening (locked recess) 14.
尚、係止具29を左右両側パネル3,4の下辺部材6の下側に係合させる実施形態について説明したが、本発明では、図8及び図9に示すように、左右両側パネル3,4の門形周囲枠材7の前端側の垂直支柱7aの下端部に荷支持台1側に向かって水平内向きに開口する被係合凹部36を設け、この被係合凹部36に対向するように前記係止具29を荷支持台1に配設することもできる。この場合、前記係止具29は、荷支持台1の内部空間(厚さの領域内)に内蔵され、少なくとも操作レバー部32が操作により運動する領域の荷支持台1の内部空間は下側が開放され、当該操作レバー部32は当該荷支持台1の内部空間から下方に突出することになる。また、係止具29は、荷支持台1の左右両側壁1aに設けられた開口から外向きに突出することになるが、当該荷支持台1の左右両側壁1aを前記溝形材30の外側の垂直板部30aとして利用することもできる。 In addition, although embodiment which engages the latching tool 29 with the lower side member 6 of the right-and-left both side panels 3 and 4 was demonstrated, as shown in FIG.8 and FIG.9, as shown in FIG. 4 is provided at the lower end portion of the vertical column 7a on the front end side of the portal peripheral frame member 7 with an engaged recess 36 that opens horizontally inward toward the load supporting base 1 and faces the engaged recess 36. In this manner, the locking tool 29 can be disposed on the load support base 1. In this case, the locking tool 29 is built in the internal space (in the thickness region) of the load support base 1, and at least the internal space of the load support base 1 in the region where the operation lever portion 32 moves by operation is located on the lower side. The operation lever portion 32 is opened and protrudes downward from the internal space of the load support base 1. Further, the locking tool 29 protrudes outward from the openings provided in the left and right side walls 1 a of the load support base 1, but the left and right side walls 1 a of the load support base 1 are formed on the groove member 30. It can also be used as the outer vertical plate portion 30a.
垂直支柱7aの下端部に設けられる前記被係合凹部36は、当該垂直支柱7aが丸パイプ材で構成されている場合、当該垂直支柱7aの下端部の周壁に係止具29に対向させて孔または下端からの逆U字形の切り欠きを穿設して構成することができるが、図8及び図9に示すように、垂直支柱7aの下端部の周壁の係止具29に対向するほぼ半分の領域を内側に凹入させて垂直支柱7aの下端部の横断面形状をC字形とすることにより被係合凹部36を構成するのが望ましい。 The engaged recessed portion 36 provided at the lower end portion of the vertical column 7a is formed so that the peripheral wall of the lower end portion of the vertical column 7a faces the locking tool 29 when the vertical column 7a is formed of a round pipe material. Although an inverted U-shaped notch can be formed from the hole or the lower end, as shown in FIG. 8 and FIG. 9, it is almost opposite to the locking member 29 on the peripheral wall of the lower end portion of the vertical column 7a. It is desirable to form the engaged recess 36 by recessing the half region inward and making the cross-sectional shape of the lower end of the vertical column 7a C-shaped.
また、荷支持台1側の係止突起28が上下方向に嵌合する被係合凹部として、左右両側パネル3,4の前端側下側に取り付けられた車輪取付用座板10c,10dが備える上下方向の開口部14を利用する実施形態について説明したが、図10に示すように、左右両側パネル3,4の下辺部材6に上下方向の貫通孔37を設けて、これを上下方向の被係合凹部とし、係止突起28は、荷支持台1が左右両側パネル3,4の下辺部材6に支持されたときに前記貫通孔37に嵌合し得る位置、例えば荷支持台1の左右両側面に付設する状態で設けることができる。 Further, wheel mounting seats 10c, 10d attached to the lower sides of the front end sides of the left and right side panels 3, 4 are provided as engaged recesses into which the locking projections 28 on the load support base 1 are fitted in the vertical direction. Although the embodiment using the opening 14 in the vertical direction has been described, as shown in FIG. 10, the through-holes 37 in the vertical direction are provided in the lower side members 6 of the left and right side panels 3 and 4 so An engaging recess is provided, and the locking projection 28 is located at a position where the load support base 1 can be fitted into the through hole 37 when the load support base 1 is supported by the lower side members 6 of the left and right side panels 3, 4, for example, It can be provided in a state of being attached to both side surfaces.
左右両側パネル3,4の内、折り畳まれない側パネル3は、基本的に背パネル2に対してほぼ直角前方向きに固定されるものであるから、上記実施形態における荷支持台1側の係止突起28や側パネル側の上下方向の被係合凹部(開口部14や貫通孔37)は、折り畳まれる側パネル4側のみに設けることもできる。 Of the left and right side panels 3, 4, the side panel 3 that is not folded is basically fixed at a substantially right angle forward with respect to the back panel 2. The engaging protrusions (opening 14 and through-hole 37) in the vertical direction on the stop projection 28 and the side panel can be provided only on the side panel 4 side to be folded.
1 荷支持台
2 背パネル
3,4 側パネル
5a〜5d 車輪
6 各パネルの下辺部材
7a 側パネルの前端側の垂直支柱
10a〜10d 車輪取付座板
11 車輪取付座板の上段取付面
12 車輪取付座板の下段取付面
14 上下方向の開口部(上下方向の被係合凹部)
15,16 シムプレート
17,18,21〜23 ボルトナット
19,20 垂直ピン
28 左右一対の係止突起
29 左右一対の係止具
32 係止具の操作レバー部
36 水平内向きの被係合凹部
37 上下方向の貫通孔(上下方向の被係合凹部)
DESCRIPTION OF SYMBOLS 1 Load support stand 2 Back panel 3, 4 Side panel 5a-5d Wheel 6 Lower side member 7a of each panel Vertical support | pillar 10a-10d of the front end side of a side panel Wheel mounting seat board 11 Upper stage mounting surface 12 of wheel mounting seat board Wheel mounting Lower mounting surface 14 of seat plate Opening in the vertical direction (engaged recess in the vertical direction)
15, 16 Shim plates 17, 18, 21 to 23 Bolt nuts 19 and 20 Vertical pin 28 A pair of left and right locking projections 29 A pair of left and right locking tools 32 An operation lever portion 36 of the locking tool Horizontally inwardly engaged recess 37 Up-down through-hole (up-down engaged recess)
Claims (6)
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JP2005032686A JP4381320B2 (en) | 2005-02-09 | 2005-02-09 | Foldable cart |
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JP4381320B2 true JP4381320B2 (en) | 2009-12-09 |
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CN107364695A (en) * | 2017-09-14 | 2017-11-21 | 柳州市麦可思塑胶科技有限公司 | Before automobile under covering decorative panel transport frock |
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