JP2013086748A - Folding cart - Google Patents
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- JP2013086748A JP2013086748A JP2011231674A JP2011231674A JP2013086748A JP 2013086748 A JP2013086748 A JP 2013086748A JP 2011231674 A JP2011231674 A JP 2011231674A JP 2011231674 A JP2011231674 A JP 2011231674A JP 2013086748 A JP2013086748 A JP 2013086748A
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- 230000007246 mechanism Effects 0.000 claims description 21
- 210000000078 claw Anatomy 0.000 description 12
- 238000005192 partition Methods 0.000 description 2
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Abstract
Description
本発明は使用しないときは折畳んで小スペースに収納可能な折畳み式台車に関するものである。 The present invention relates to a folding cart that can be folded and stored in a small space when not in use.
従来、重い荷物や大きい荷物を載置して手押しで搬送する台車は、板状の荷台を有し、荷台の下面に４個のキャスタが取り付けられ、後方端には荷台を手押しする搬送用ハンドルが設けられている。このような台車の中には、使用しないときに搬送用ハンドルを折畳んでコンパクトになる折畳み式台車もある。また、荷台も折り畳み可能とした台車もある。 Conventionally, carts that carry heavy loads or large loads and carry them by hand have a plate-shaped cargo bed, four casters attached to the lower surface of the cargo bed, and a conveyance handle that pushes the cargo bed at the rear end. Is provided. Among such trolleys, there are also foldable trolleys that are compact by folding the transport handle when not in use. There are also carts that can fold the cargo bed.
特開２００２−１７８９２８号に係る「折畳み台車」は、簡単な構造で荷台とキャスタが折り畳み可能であり、コンパクトに収納可能としている。そこで、水平に位置する一対の板状の荷台と、荷台の底面に取り付けられている複数個のキャスタと、キャスタと荷台の間に取り付けられキャスタの車軸が荷台に対して直角になるようにキャスタを折り畳み可能に保持した保持軸を有している。キャスタを走行可能に起こした状態で保持するロックピンと、一対の荷台の間に設けられこの荷台の底面同士を対面させた状態で折り畳み可能に連結する蝶番を備えている。 A “folding cart” according to Japanese Patent Application Laid-Open No. 2002-1778928 is a simple structure in which a loading platform and casters can be folded and can be stored compactly. Therefore, a pair of plate-shaped loading platforms positioned horizontally, a plurality of casters attached to the bottom surface of the loading platform, and the casters mounted between the casters and the loading platform so that the axles of the casters are perpendicular to the loading platform. Is held in a foldable manner. A lock pin that holds the caster in a state where the caster is raised is provided, and a hinge that is provided between the pair of loading platforms and is foldably connected in a state in which the bottom surfaces of the loading platforms face each other.
特開２００１−２８７６５４号に係る「手押し台車」は、軽量性とデザイン性と共に、積載効率と収納効率を向上させるべく、折畳み組立て構造を工夫し、室内での使用にも好適な手押し台車である。 The “hand carriage” according to Japanese Patent Laid-Open No. 2001-287654 is a hand carriage that is suitable for indoor use by devising a folding assembly structure in order to improve the loading efficiency and the storage efficiency as well as the light weight and the design. .
四脚部を連結フレームに水平回動自在に軸連結した脚と、連結フレームに上下動可能に装着したセンターフレームと、分離可能な左右台座の下側を脚上部及びセンターフレーム上部にそれぞれ軸連結し、脚の回動と共に折り畳み可能とした台座と、センターフレーム後部に摺動自在に装着したロックプレートと、ロックプレートから突出し脚上部に離脱可能に係止するラッチと、ロックプレートを摺動するリンク機構、これを操作するロックレバーと、ロックレバーと連動してハンドルを固定解除可能な連結フレームと、ハンドル上部にグリップ回動機構を介装して開閉固定可能なハンドルグリップとを設けている。 A leg that is pivotally connected to the connecting frame horizontally on the four legs, a center frame that is mounted on the connecting frame so as to be movable up and down, and a lower side of the detachable left and right pedestals is connected to the upper part of the leg and the upper part of the center frame. And a pedestal that can be folded along with the rotation of the leg, a lock plate that is slidably mounted on the rear part of the center frame, a latch that protrudes from the lock plate and is detachably locked to the upper part of the leg, and slides on the lock plate A link mechanism, a lock lever for operating the link mechanism, a connecting frame that can be unlocked and unlocked in conjunction with the lock lever, and a handle grip that can be opened and closed via a grip rotation mechanism at the top of the handle. .
このように折畳み式台車にも色々な形態があるが、折畳むことでコンパクト化するだけでなく、折畳み操作が簡単であることが必要となる。
出願人は平成１８年５月１１日付けで「折畳み式台車」に関して特許出願を行なっている（特開２００７−３０２１１４）。この折畳み式台車は荷台の底にはキャスタを設け、荷台後方に設けたハンドルを押して荷台に載せた荷物を運ぶことが出来る台車であって、台車を持ち上げることなく簡単に折畳むことが出来、折畳んだ状態で移動することが可能な折畳み式台車である。
As described above, there are various types of folding carts, but it is necessary not only to make them compact by folding them but also to make the folding operation simple.
The applicant has filed a patent application on “Folding Cart” dated May 11, 2006 (Japanese Patent Laid-Open No. 2007-302114). This folding cart is equipped with a caster at the bottom of the loading platform and can carry the luggage placed on the loading platform by pushing the handle provided at the rear of the loading platform, and can be easily folded without lifting the cart, It is a folding cart that can be moved in a folded state.
そこで、荷台は両基台にキャスタを取付け、継手を介して折畳み出来るように連結した２枚の荷台板の各側端を上記基台に設けた軸に回転可能に軸支している。両荷台板の中央は上昇して折畳まれるが下方へは降下しないように水平状態で互いに当接し合うことが出来る当接部を荷台板中央側に設け、そして上記基台の後方端にはハンドルの脚が嵌る支柱を起立し、ハンドルはその中央にて２つ折り出来るように軸を介して連結した構造としている。 Therefore, the loading platform has casters attached to both bases, and each side end of two loading platform plates connected so as to be foldable via a joint is pivotally supported on a shaft provided on the above-described platform. The center of both loading platform plates is raised and folded, but a contact portion that can contact each other in a horizontal state is provided on the center side of the loading platform plate so as not to descend downward, and at the rear end of the base plate Has a structure in which a support column on which a leg of the handle is fitted is erected, and the handle is connected via a shaft so that the handle can be folded in half.
ところが、上記折畳み式台車が折畳まれる場合、２枚の荷台板が起立した状態で突き合わされる為に安定性が欠け、転倒する虞がある。また、折畳まれる台車はその荷台が２つ折りされ、ハンドルも荷台と共に折畳まれるが該ハンドルは２つ折りされた状態で起立している。そこで、２つ折りされたハンドルが上方へ大きく延びる為に安定性が損なわれることになる。
このように従来の折畳み式台車には上記のごとき問題がある。本発明が解決しようとする課題はこの問題点であり、簡単に折畳むことが出来ると共に折畳んだ台車が転倒することなく安定し、しかも持ち運びが便利な折畳み式台車を提供する。 Thus, the conventional folding cart has the above-mentioned problems. The problem to be solved by the present invention is this problem, and provides a foldable cart that can be easily folded and that the folded cart is stable without falling over and that is easy to carry.
本発明に係る折畳み式台車は荷台の後方端に起立した手押しハンドルを備え、そして、荷台の底には車輪（キャスター）が取付けられ、該車輪が転がって台車は移動することが出来る構造としている。従って、使用する際の基本形態は従来の折畳み式台車と共通している。 The folding cart according to the present invention has a push handle raised at the rear end of the loading platform, and a wheel (caster) is attached to the bottom of the loading platform, and the cart can move by rolling the wheel. . Therefore, the basic form at the time of use is common to the conventional folding cart.
荷台は中央板と両側板の３ピース構造として連結部材を介して連結され、荷物が載るときは同一平坦面を成し、収納時には両側板は垂直下方に折畳まれて門形断面形状と成る。そして、手押しハンドルは両支柱と支柱上端を繋ぐ握り部を有す概略門形を成し、荷台に設けた軸を中心として揺動して倒れ、中央板と側板の間に形成された収納溝に両支柱が収まる。手押しハンドルにはロック機構が備わっており、倒れて収納溝に収まった状態でロックされ、手押しハンドルの握り部を握って折畳まれた台車を持運ぶことが出来る。 The loading platform is connected through a connecting member as a three-piece structure with a center plate and both side plates, and forms the same flat surface when a load is loaded, and both side plates are folded vertically downward into a gate-shaped cross-sectional shape when stored. . The hand handle has a generally portal shape with a grip portion connecting both the struts and the upper end of the struts, swings about the axis provided on the loading platform and falls down, and enters the storage groove formed between the center plate and the side plate. Both struts fit. The hand handle is equipped with a lock mechanism that locks in a state where it falls and fits in the storage groove, and can carry a cart that is folded by gripping the grip of the hand handle.
そして、両側板は中央板に対して折畳まれて垂直に起立するように連結部材を介して連結しているが、底には上記連結部材及びリンク機構を備えている。ここで、具体的な連結部材及びリンク機構の構造は限定しないが、該連結部材によって連結された側板は中央板と同一面となり、又垂直に折畳まれ、垂直に折畳まれた状態でロックされる。上記車輪は側板の底に取着され、その為に該側板が垂直に折畳まれるならば車輪も同時に倒れて門形空間に収納される。 The both side plates are connected to each other via a connecting member so that the both side plates are folded with respect to the central plate, and are provided on the bottom with the connecting member and the link mechanism. Here, the structure of the specific connecting member and the link mechanism is not limited, but the side plate connected by the connecting member is flush with the center plate, and is folded vertically and locked in the vertically folded state. Is done. The wheel is attached to the bottom of the side plate. For this reason, if the side plate is folded vertically, the wheel is also collapsed and stored in the portal space.
本発明に係る台車は従来と同じく荷台に荷物を載せて運ぶことが出来る。この際、手押しハンドルは一般に起立しているが、荷台からはみ出す大きな荷物を運ぶ際には手押しハンドルが邪魔にならないように倒すことが可能となる。手押しハンドルは中央板と側板の間に形成した収納溝に収まることが出来、荷台面から突出しない為に、手押しハンドルは載置される荷物の邪魔にならない。 The cart according to the present invention can carry a load on the loading platform as in the prior art. At this time, the hand handle is generally erected, but when carrying a large load that protrudes from the loading platform, the hand handle can be tilted so as not to get in the way. The hand handle can be accommodated in a storage groove formed between the center plate and the side plate, and does not protrude from the cargo bed surface, so the hand handle does not interfere with the load to be placed.
そして、本発明の折畳み式台車は上記手押しハンドルが倒れて収納溝に収まると共に、両側板は折畳まれて荷台は門形断面と成る。荷台の底に取付けた車輪（キャスタ）は側板と共に倒れて内側に向き、全体がコンパクトに折畳まれて収納スペースは小さくなる。又、折畳まれた台車は手押しハンドルの握り部を握って持運ぶことが出来、握り部を上にした状態で垂直に起立して収納することも可能である。 In the folding cart of the present invention, the push handle falls down and fits in the storage groove, and both side plates are folded so that the loading platform has a gate-shaped cross section. The wheel (caster) attached to the bottom of the loading platform falls with the side plate and faces inward, and the whole is folded compactly to reduce the storage space. In addition, the folded cart can be carried by gripping the grip portion of the hand handle, and can be stood vertically and stored with the grip portion facing up.
図１は本発明に係る折畳み式台車を示す実施例であり、同図の１は荷台、２は手押しハンドル、３は車輪（キャスタ）をそれぞれ表している。荷台１は概略長方形を成し、この荷台１に荷物を載せて運ぶことが出来る。手押しハンドル２は荷台１の後方端中央にほぼ垂直に起立し、手押しハンドル２の上端には握り部４を有している。すなわち、手押しハンドル２は２本の支柱５，５を有し、この両支柱５，５の上端は滑らかに湾曲した握り部４にて繋がれている。 FIG. 1 shows an embodiment of a folding cart according to the present invention. In FIG. 1, 1 denotes a loading platform, 2 denotes a hand handle, and 3 denotes a wheel (caster). The loading platform 1 has a substantially rectangular shape, and a load can be carried on the loading platform 1. The hand handle 2 stands substantially vertically at the center of the rear end of the loading platform 1, and has a grip portion 4 at the upper end of the hand handle 2. That is, the hand handle 2 has two support columns 5 and 5, and the upper ends of the support columns 5 and 5 are connected by the grip portion 4 that is smoothly curved.
車輪３，３・・・は荷台１の各コーナー部に取付けられ、手押しハンドル２の握り部４を持って押したり又は引いたりして荷台１に載せた荷物を運ぶことが出来る。ところで、本発明の台車は折畳み式であって、荷台１は中央板６と両側板７ａ，７ｂで構成され、両側板７ａ，７ｂは中央板６の両側に折畳まれて門形となることが出来る。又、手押しハンドル２は折畳まれて倒れ、中央板６と両側板７ａ，７ｂとの間に形成した収納溝８ａ，８ｂに収まることが出来る。 The wheels 3, 3... Are attached to the respective corners of the loading platform 1, and can carry the load placed on the loading platform 1 by pushing or pulling with the grip 4 of the hand handle 2. By the way, the cart of the present invention is a folding type, and the loading platform 1 is composed of a center plate 6 and both side plates 7a and 7b, and both side plates 7a and 7b are folded on both sides of the center plate 6 to form a gate shape. I can do it. Further, the hand handle 2 can be folded and fall down, and can be accommodated in the storage grooves 8a and 8b formed between the center plate 6 and the side plates 7a and 7b.
図２は手押しハンドル２を倒して収納溝８ａ，８ｂに収めた場合を示している。荷台１に大きな荷物を載せる場合に手押しハンドル２は邪魔になるが、同図に示すように手押しハンドル２を倒して収納溝８ａ，８ｂに収めることで、荷台１からはみ出す大きな荷物を載せて運ぶことが出来る。勿論、この場合には、手押しハンドル２を使うことは出来ないが、荷台１に載せた荷物に手を掛けて押すことが可能である。 FIG. 2 shows a case where the hand push handle 2 is tilted and stored in the storage grooves 8a and 8b. When a large load is placed on the loading platform 1, the push handle 2 is in the way, but as shown in the figure, the push handle 2 is tilted and placed in the storage grooves 8 a and 8 b, so that a large load that protrudes from the loading platform 1 is loaded and carried. I can do it. Of course, in this case, the hand handle 2 cannot be used, but it is possible to put the hand on the load placed on the loading platform 1 and push it.
図３は本発明に係る折畳み式台車を折畳んだ状態を示している。台車の荷台１は中央板６の両側に側板７ａ，７ｂが連結され、そして、両側板７ａ，７ｂは同図に示すように下方へ垂直に折畳まれる。すなわち、両側板７ａ，７ｂは垂直に起立して中央板６を支える脚となり、門形を成すことが出来る。ここで、手押しハンドル２の両支柱５，５は中央板６と側板７ａ，７ｂの間に形成した収納溝８ａ，８ｂに収まっている。 FIG. 3 shows a folded state of the folding cart according to the present invention. Side plates 7a and 7b are connected to both sides of a central plate 6 in the carrier bed 1 of the carriage, and the side plates 7a and 7b are folded vertically downward as shown in FIG. That is, the side plates 7a and 7b stand vertically and serve as legs that support the center plate 6 and can form a portal shape. Here, both support columns 5, 5 of the hand handle 2 are accommodated in storage grooves 8a, 8b formed between the center plate 6 and the side plates 7a, 7b.
ところで、側板７ａ，７ｂは中央板６の両側に連結部材を介して折畳み出来るように連結しているが、垂直に起立した両側板７ａ，７ｂが倒れないように連結部材は複数のリンクを繋いで構成している。すなわち、連結部材を単なる蝶番などの継手で連結しただけでは図３に示すように側板７ａ，７ｂは垂直に起立して門形を形成することは出来ない。 By the way, the side plates 7a and 7b are connected to both sides of the central plate 6 so as to be foldable via connecting members, but the connecting members connect a plurality of links so that the vertically rising side plates 7a and 7b do not fall down. It consists of. That is, the side plates 7a and 7b cannot stand upright to form a gate shape as shown in FIG. 3 simply by connecting the connecting members with a joint such as a hinge.
図３のように側板７ａ，７ｂが折り畳まれて門形をした状態で、該台車を持ち運びすることが出来る。その為にはある程度軽くする必要はあるが、手押しハンドル２の上端に設けた握り部４を持って持ち上げられる。この場合、折り畳まれて収納溝８ａ，８ｂに収まっている手押しハンドル２が外れないようにロックされている。また、中央板６に形成した開口２１ａ，２１ｂに手を入れて持運ぶことも出来る。 As shown in FIG. 3, the cart can be carried with the side plates 7a and 7b folded to form a gate shape. For that purpose, it is necessary to lighten to some extent, but it is lifted by holding the grip portion 4 provided at the upper end of the hand handle 2. In this case, the hand push handle 2 that is folded and accommodated in the storage grooves 8a and 8b is locked so as not to come off. Further, it can be carried in the openings 21a and 21b formed in the central plate 6 with a hand.
握り部４の下方（中央板６の先端側）にはレバー９が設けられ、このレバー９の両端に設けているツメが手押しハンドル２の支柱上端に取付けたツメに係止することで、支柱５，５は収納溝８ａ，８ｂから外れることはない。
図４は支柱５に取着したツメ１０がレバー９の両端に形成したツメ１１に係止してロックされている場合を示す側面図である。ツメ１１はレバー９と共にスライドすることが出来、その為に矢印（←）方向へ移動するならばツメ１１はツメ１０から外れ、その結果、手押しハンドル２は上方へ揺動して起立することが出来る。
A lever 9 is provided below the grip portion 4 (at the front end side of the center plate 6), and the claws provided at both ends of the lever 9 are engaged with the claws attached to the upper end of the support handle 2 so that the post 5 and 5 do not come off the storage grooves 8a and 8b.
FIG. 4 is a side view showing a case where the claw 10 attached to the support column 5 is locked and locked to the claw 11 formed at both ends of the lever 9. The claw 11 can be slid together with the lever 9 and, for that purpose, if the claw 11 moves in the direction of the arrow (←), the claw 11 is detached from the claw 10, and as a result, the hand handle 2 can swing up and stand up. I can do it.
一方、荷物を荷台１に載せて運ぶ際には手押しハンドル２は図１に示すように起立している。そして、手押しハンドル２を押しても倒れないようにロックされている。手押しハンドル２は荷台１の後端部に揺動可能に軸支され、荷物を運ぶ時には起立してロックされ、また収納する時にも倒れてロックされる。 On the other hand, when carrying a load on the loading platform 1, the hand handle 2 stands as shown in FIG. And it is locked so that it may not fall down even if the hand push handle 2 is pushed. The hand handle 2 is pivotally supported at the rear end portion of the loading platform 1 so as to be stood up and locked when carrying a load, and also tilted and locked when stored.
図５は手押しハンドル２の下端に設けた軸支構造を示す実施例である。同図の１２は回転板、１３は軸、１４は係合溝、１５は係合溝、１６はロックピンをそれぞれ表している。回転板１２は軸１３を中心として回転出来るように軸支され、外周へ突出したアーム１７には支柱５が嵌合して連結し、従って、回転板１２の回転に伴って手押しハンドル２は揺動することが出来る。 FIG. 5 is an embodiment showing a shaft support structure provided at the lower end of the hand handle 2. In the figure, 12 is a rotating plate, 13 is a shaft, 14 is an engaging groove, 15 is an engaging groove, and 16 is a lock pin. The rotary plate 12 is pivotally supported so as to be able to rotate about the shaft 13, and the support column 5 is fitted and connected to the arm 17 protruding to the outer periphery. Therefore, as the rotary plate 12 rotates, the hand handle 2 swings. Can move.
同図は手押しハンドル２が起立している場合であり、回転板１２に形成した係合溝１４にロックピン１６が嵌っていて、回転板１２の回転が阻止される。そして、手押しハンドル２が倒れるならば、回転板１２は反時計方向に回転し、係合溝１５にロックピン１６が嵌ってロックされる。そこで、手押しハンドル２を倒す場合にはロックピン１６を係合溝１４から外す必要があり、同じく倒れた手押しハンドル２を起立させる場合には係合溝１５からロックピン１６を外す必要がある。 This figure shows a case where the hand push handle 2 is standing up, and a lock pin 16 is fitted in an engaging groove 14 formed in the rotating plate 12 to prevent the rotating plate 12 from rotating. Then, if the hand handle 2 is tilted, the rotating plate 12 rotates counterclockwise, and the lock pin 16 is fitted into the engagement groove 15 and locked. Therefore, when the hand handle 2 is tilted, the lock pin 16 needs to be removed from the engaging groove 14, and when the hand handle 2 that is also tilted is raised, the lock pin 16 needs to be removed from the engaging groove 15.
ところで、上記ロックピン１６はガイド溝（図示なし）に遊嵌され、上記レバー９と連結している。すなわち、レバー９とワイヤーを介して連結され、レバー９を前方側へ引くならばロックピン１６は係合溝１４，１５から矢印方向へ移動して外れることが出来、回転板１２は回転すると共に手押しハンドル２は揺動することが出来る。ここで、ロックピン１６には後方側へ作用するバネ力が付勢され、その為に、回転板１２が回転して所定の位置に来れば該ロックピン１６は独りでに係合溝１４，１５に嵌ることが出来る。 By the way, the lock pin 16 is loosely fitted in a guide groove (not shown) and connected to the lever 9. That is, when the lever 9 is connected to the lever 9 via a wire and the lever 9 is pulled forward, the lock pin 16 can be moved away from the engaging grooves 14 and 15 in the direction of the arrow, and the rotating plate 12 rotates. The hand handle 2 can swing. Here, a spring force acting rearward is applied to the lock pin 16, and for this reason, when the rotating plate 12 rotates and comes to a predetermined position, the lock pin 16 alone enters the engagement grooves 14 and 15. Can fit.
図６は荷台１の下面を表している。中央板６と両側板７ａ，７ｂは先端部と後端部に取付けた連結部材によって折畳み出来るように繋がっている。中央板６には中央連結部材１８が取着され、側板７ａには側部連結部材１９ａが揺動可能に取付けられ、同じく側板７ｂには側部連結部材１９ｂが揺動可能に取付けられている。そして、側部連結部材１９ａ，１９ｂの先端にはピン２０ａ，２０ｂが取着されていて、該ピン２０ａ，２０ｂは中央連結部材１８に設けた長溝に遊嵌している。 FIG. 6 shows the lower surface of the loading platform 1. The central plate 6 and the side plates 7a and 7b are connected so that they can be folded by connecting members attached to the front end and the rear end. A central connecting member 18 is attached to the central plate 6, a side connecting member 19a is swingably attached to the side plate 7a, and a side connecting member 19b is swingably attached to the side plate 7b. . And the pin 20a, 20b is attached to the front-end | tip of the side part connection member 19a, 19b, and this pin 20a, 20b is loosely fitted in the long groove provided in the center connection member 18. FIG.
そこで、側板７ａ，７ｂが折畳まれる場合、側部連結部材１９ａ，１９ｂは揺動すると共に、先端のピン２０ａ，２０ｂは中央連結部材１８に設けた長溝に沿って中央側へ移動して内側端に位置することに成る。図１、図２に示すように中央板６と両側板７ａ，７ｂが同一面と成って荷物を載せる場合には、ピン２０ａ，２０ｂは長溝の外側端に位置して側部連結部材１９ａ，１９ｂの動きが固定される。 Therefore, when the side plates 7a and 7b are folded, the side connecting members 19a and 19b swing, and the tip pins 20a and 20b move toward the center along the long grooves provided in the center connecting member 18. It will be located at the inner edge. As shown in FIG. 1 and FIG. 2, when the center plate 6 and the side plates 7a and 7b are on the same surface and a load is loaded, the pins 20a and 20b are located at the outer ends of the long grooves and are connected to the side connecting members 19a and 19a. The movement of 19b is fixed.
ところで、台車の荷台１は両側板７ａ，７ｂを垂直下方へ折畳んで収納されるが、図２のように両側板７ａ，７ｂが中央板６と同一面である状態から、図３のように側板７ａ，７ｂを折畳むには、中央板６を持ち上げることで、両側板７ａ，７ｂの重みで揺動して垂直下方に折畳まれる。図７は両側板７ａ，７ｂが垂直下方に折畳まれて門形をした状態を示しているが、側板７ａ，７ｂに取着した車輪３，３・・・は門形の内側空間に収容される。 By the way, the loading platform 1 of the carriage is stored by folding both side plates 7a and 7b vertically downward, but from the state in which both side plates 7a and 7b are flush with the central plate 6 as shown in FIG. In order to fold the side plates 7a and 7b, the center plate 6 is lifted to swing vertically by the weight of the side plates 7a and 7b. FIG. 7 shows a state in which both side plates 7a, 7b are folded vertically downward to form a gate shape, but the wheels 3, 3... Attached to the side plates 7a, 7b are accommodated in a gate-shaped inner space. Is done.
中央板６には開口２１ａ，２１ｂが対を成して形成され、そして両開口２１ａ，２１ｂの間に設けた仕切り２２の下側に水平棒２３を取付けている。そこで、開口２１ａ，２１ｂに手を入れて水平棒２３を握って持ち上げることが出来、その結果、両側の側板７ａ，７ｂは自重によって揺動し、垂直下方へ折畳まれる。 The central plate 6 is formed with a pair of openings 21a and 21b, and a horizontal bar 23 is attached to the lower side of the partition 22 provided between the openings 21a and 21b. Therefore, it is possible to put the hand into the openings 21a and 21b and grasp and lift the horizontal bar 23. As a result, the side plates 7a and 7b on both sides are swung by their own weights and folded vertically downward.
そして、中央板６と側板７ａ，７ｂを繋ぐ両連結部材の内側にはリンク機構を備え、該リンク機構にて垂直下方に折畳まれた側板７ａ，７ｂをその状態にロックすると共に、垂直下方に折畳まれた側板７ａ，７ｂはリンク機構２４を利用して水平に開くことが出来る。図８はリンク機構２４を示している。リンク機構２４は中央板側のリンク２５，２５と側板側のリンク２６、２６から成り、中央板側リンク２５，２５は軸２７，２７に揺動可能に連結され、側板側リンク２６，２６は軸２８，２８に揺動可能に連結されている。そして、リンク２５とリンク２６の先端は軸３１にて連結されている。 A link mechanism is provided on the inner side of both connecting members that connect the center plate 6 and the side plates 7a and 7b, and the side plates 7a and 7b folded vertically downward by the link mechanism are locked in this state, and the vertically downward The side plates 7a and 7b folded in the horizontal direction can be opened horizontally using the link mechanism 24. FIG. 8 shows the link mechanism 24. The link mechanism 24 includes links 25 and 25 on the center plate side and links 26 and 26 on the side plate side. The center plate side links 25 and 25 are swingably connected to shafts 27 and 27, and the side plate side links 26 and 26 are The shafts 28 and 28 are swingably connected. The ends of the link 25 and the link 26 are connected by a shaft 31.
中央板側のリンク２５，２５には概略「へ」字状のガイド溝２９，２９が形成され、このガイド溝２９，２９にはガイド棒３０が嵌っている。図８は中央板６と側板７ａ，７ｂが同一面を成している場合であり、ガイド棒３０はガイド溝２９，２９の軸２７，２７側に位置している。そして、側板７ａ，７ｂを垂直下方に折畳むならば、ガイド棒３０はガイド溝２９，２９の先端側へ移動する。ガイド溝２９，２９は概略「へ」字状と成っていて、ガイド棒３０がガイド溝２９，２９の先端へ移動するならば、側板７ａ，７ｂはロックされて、側板７ａ，７ｂを持って水平に拡げることが出来ない。 In the links 25, 25 on the center plate side, guide grooves 29, 29 having a generally “h” shape are formed, and guide rods 30 are fitted into the guide grooves 29, 29. FIG. 8 shows a case where the central plate 6 and the side plates 7a and 7b are on the same plane, and the guide rod 30 is located on the shafts 27 and 27 side of the guide grooves 29 and 29. If the side plates 7a and 7b are folded vertically downward, the guide rod 30 moves to the tip side of the guide grooves 29 and 29. The guide grooves 29 and 29 are substantially “h” -shaped, and if the guide rod 30 moves to the tip of the guide grooves 29 and 29, the side plates 7a and 7b are locked and have the side plates 7a and 7b. It cannot be spread horizontally.
２つのリンク機構２４，２４が対を成して配置され、ガイド棒３０は２本の中央側リンク２５，２５に形成した「へ」字状のガイド溝２９，２９に嵌ってロックされる。図９は両側板７ａ、７ｂが垂直下方に折畳まれた状態でのリンク機構を表しているが、中央側リンク２５，２５の「へ」字状のガイド溝２９，２９にガイド棒３０が嵌ることで、垂直下方へ折畳まれた側板７ａ，７ｂが水平に成ろうとして揺動しようとするならば、側板７ａ，７ｂに連結されたリンク２６，２６によって中央側リンク２５，２５は互いに反対方向へ引っ張られ、ガイド棒３０をロックすることになる。 The two link mechanisms 24 and 24 are arranged in pairs, and the guide rod 30 is fitted and locked in the “h” -shaped guide grooves 29 and 29 formed in the two central links 25 and 25. FIG. 9 shows the link mechanism in a state in which the side plates 7a and 7b are folded vertically downward, but the guide rod 30 is inserted in the “h” -shaped guide grooves 29 and 29 of the center side links 25 and 25. If the side plates 7a and 7b folded vertically downward are to be swung by fitting, the central side links 25 and 25 are connected to each other by the links 26 and 26 connected to the side plates 7a and 7b. The guide rod 30 is locked by being pulled in the opposite direction.
そこで、折畳まれている両側板７ａ，７ｂを揺動して中央板６と平行にするには、このガイド棒３０を「へ」字状ガイド溝２９，２９から外さなくてはならない。この操作は中央板６に設けている開口２１ａ，２１ｂから手を入れてガイド棒３０を握るならば、水平棒２３側へ移動してガイド棒３は「へ」字状ガイド溝２９，２から離脱することが出来る。 Therefore, in order to swing the folded side plates 7 a and 7 b so as to be parallel to the central plate 6, the guide rod 30 must be removed from the “h” -shaped guide grooves 29 and 29. In this operation, if the user inserts a hand from the openings 21a and 21b provided in the central plate 6 and grasps the guide rod 30, the guide rod 3 moves to the horizontal rod 23 side, and the guide rod 3 is moved from the "heavy" guide grooves 29 and 2. You can leave.
ここで、ガイド棒３０にはコイルバネ３２が巻かれ、コイルバネ３２の両端がリンク２５，２５に係止していて、このコイルバネ３２のバネ力によってガイド棒３０は「へ」字状ガイド溝２９，２９の先端に嵌ることが出来るバネ力を付勢している。ところで、対を成して構成したリンク機構２４，２４は図６に示すように上記両連結部材の内側２か所に配置され、ガイド棒３０はこの２か所のリンク機構２４，２４に跨って延びている。 Here, a coil spring 32 is wound around the guide rod 30, and both ends of the coil spring 32 are locked to the links 25, 25, and the spring force of the coil spring 32 causes the guide rod 30 to be “heavy” shaped guide groove 29, The spring force which can be fitted to the tip of 29 is urged. By the way, as shown in FIG. 6, the link mechanisms 24, 24 formed in pairs are arranged at two locations inside the connecting members, and the guide rod 30 straddles the link mechanisms 24, 24 at the two locations. It extends.
１ 荷台
２ 手押しハンドル
３ 車輪
４ 握り部
５ 支柱
６ 中央板
７ 側板
８ 収納溝
９ レバー
10 ツメ
11 ツメ
12 回転板
13 軸
14 係合溝
15 係合溝
16 ロックピン
17 アーム
18 中央連結部材
19 側部連結部材
20 ピン
21 開口
22 仕切り
23 水平棒
24 リンク機構
25 リンク
26 リンク
27 軸
28 軸
29 ガイド溝
30 ガイド棒
31 軸
32 コイルバネ
DESCRIPTION OF SYMBOLS 1 Cargo bed 2 Hand handle 3 Wheel 4 Grip part 5 Post 6 Center plate 7 Side plate 8 Storage groove 9 Lever
10 claw
11 claw
12 Rotating plate
13 axes
14 Engaging groove
15 Engagement groove
16 Lock pin
17 arm
18 Central connecting member
19 Side connection member
20 pin
21 opening
22 partitions
23 Horizontal bar
24 Link mechanism
25 links
26 links
27 axes
28 axes
29 Guide groove
30 guide bar
31 axes
32 Coil spring
Claims (3)
As a link mechanism that can be locked in a state in which the side plate is folded vertically downward, a link is attached to the bottom of the center plate so as to be swingable via a shaft, and the link is swingable to the bottom of the side plate via a shaft. And the links are connected to each other through a shaft, and a guide groove having a "H" shape is formed in the center plate side link, and a guide rod is loosely fitted in the guide groove. 2. The folding cart according to 2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011231674A JP5848945B2 (en) | 2011-10-21 | 2011-10-21 | Folding cart |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011231674A JP5848945B2 (en) | 2011-10-21 | 2011-10-21 | Folding cart |
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| Publication Number | Publication Date |
|---|---|
| JP2013086748A true JP2013086748A (en) | 2013-05-13 |
| JP5848945B2 JP5848945B2 (en) | 2016-01-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011231674A Active JP5848945B2 (en) | 2011-10-21 | 2011-10-21 | Folding cart |
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| Country | Link |
|---|---|
| JP (1) | JP5848945B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016094057A (en) * | 2014-11-13 | 2016-05-26 | 株式会社森山鉄工 | Folding type dolly and handle |
| JP2018001980A (en) * | 2016-07-03 | 2018-01-11 | 株式会社ジャロック | Truck roller type carrying wagon |
| CN109895825A (en) * | 2019-03-22 | 2019-06-18 | 灵动科技（北京）有限公司 | Automatic carriage |
| CN113978527A (en) * | 2021-10-13 | 2022-01-28 | 刘广建 | Multifunctional foldable truck |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62473U (en) * | 1985-06-20 | 1987-01-06 | ||
| JPS646172U (en) * | 1987-06-29 | 1989-01-13 | ||
| JPH01136062U (en) * | 1988-03-08 | 1989-09-18 | ||
| US5040809A (en) * | 1990-08-10 | 1991-08-20 | Anthony Yang | Portable folding cart |
-
2011
- 2011-10-21 JP JP2011231674A patent/JP5848945B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62473U (en) * | 1985-06-20 | 1987-01-06 | ||
| JPS646172U (en) * | 1987-06-29 | 1989-01-13 | ||
| JPH01136062U (en) * | 1988-03-08 | 1989-09-18 | ||
| US5040809A (en) * | 1990-08-10 | 1991-08-20 | Anthony Yang | Portable folding cart |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016094057A (en) * | 2014-11-13 | 2016-05-26 | 株式会社森山鉄工 | Folding type dolly and handle |
| JP2018001980A (en) * | 2016-07-03 | 2018-01-11 | 株式会社ジャロック | Truck roller type carrying wagon |
| CN109895825A (en) * | 2019-03-22 | 2019-06-18 | 灵动科技（北京）有限公司 | Automatic carriage |
| CN113978527A (en) * | 2021-10-13 | 2022-01-28 | 刘广建 | Multifunctional foldable truck |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5848945B2 (en) | 2016-01-27 |
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