JP6055247B2 - Transport cart - Google Patents

Transport cart Download PDF

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JP6055247B2
JP6055247B2 JP2012201435A JP2012201435A JP6055247B2 JP 6055247 B2 JP6055247 B2 JP 6055247B2 JP 2012201435 A JP2012201435 A JP 2012201435A JP 2012201435 A JP2012201435 A JP 2012201435A JP 6055247 B2 JP6055247 B2 JP 6055247B2
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casters
cart
auxiliary wheel
corners
caster
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JP2014054940A (en
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千田 豊治
豊治 千田
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ジー・オー・ピー株式会社
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Description

本発明は、運搬台車に関するものである。   The present invention relates to a transport cart.

下記特許文献にもあるが、一般に荷物を載置して運搬する運搬台車として、図12に示すように、荷物の載置板である長方形の台車本体1の裏面にキャスター2を取付けるとともに、台車本体1の端部に手押し棒3を立設したものがあり、手押し棒3を押すことで台車を移動し荷物を運搬する。キャスター2は台車本体1の裏面の四隅に配設され、少なくとも合計4個が取付けられている。
登録実用新案公報 第3062777号
As shown in FIG. 12, as shown in FIG. 12, a caster 2 is attached to the back surface of a rectangular cart body 1 that is a loading plate, as shown in FIG. There is one in which a hand bar 3 is erected at the end of the main body 1, and by pushing the hand bar 3, the carriage is moved to carry the luggage. The casters 2 are disposed at the four corners on the back surface of the cart body 1, and at least a total of four casters 2 are attached.
Registered Utility Model Publication No. 3062777

運搬台車1の裏面の四隅の角部に、それぞれ1輪ずつ、合計4輪の旋回キャスター2を配置する場合、台車本体の四隅の角部では、手押し棒3を立設するためのコーナー部材5が取付けられ、コーナー部材5すなわち手押し棒3の下部が台車本体の下方に突出する構造になっているため、手押し棒3の下部突出部を避けてこれに接触しないような内側位置に旋回キャスター2が取付けられることになる。   When four wheels in total are arranged at the corners at the four corners on the back surface of the transport cart 1, a total of four wheel casters 2 are arranged at the corners at the four corners of the cart body, the corner member 5 for standing the hand bar 3 upright. Is attached, and the lower part of the corner member 5, that is, the hand bar 3 protrudes downward from the cart body. Will be installed.

旋回キャスター2は、その全てが支障なく旋回(回転)するように「旋回偏心半径+キャスター半径」の分だけ垂下位置からさらに内側に入った位置に取付けられているため、旋回移動範囲が台車本体の内側に位置し、不安定な状態で運搬移動されることになり、傾いて、荷崩れなどを起こすおそれがある。   The swivel caster 2 is mounted at a position further inside from the drooping position by the amount of “swivel eccentric radius + caster radius” so that all of the swivel casters can turn (rotate) without any trouble. It will be transported in an unstable state, tilted, and may collapse.

本発明の目的は前記従来例の不都合を解消するもので、動力なしの手押しの運搬台車で、積荷が片寄った場合でも転倒を防止でき、安定状態で運搬移動できる運搬台車を提供することにある。   An object of the present invention is to eliminate the inconvenience of the above-mentioned conventional example, and to provide a transport cart that is a hand-held transport cart without power and that can prevent falling even when the load is offset and can be transported and moved in a stable state. .

前記目的を達成するため請求項1記載の本発明は、平面長方形の台車本体の少なくとも下面4隅にキャスターを下方に向けて軸着し、4隅のキャスターのうち、前後に並ぶキャスターの中間で、かつ、この前後のキャスターの接地点を結ぶ線よりも外側に、前記4隅のキャスターがすべて接地する通常時には非接地の補助輪を転倒防止用として設け、補助輪の径は、4隅のキャスターの径よりも大とし、補助輪は、台車本体の上面よりも上方に突出することを要旨とするものである。 In order to achieve the above object, according to the present invention, a caster is pivotally attached to at least four corners of the lower surface of a flat rectangular cart body, and the casters arranged at the front and rear of the four corner casters are arranged in the middle. In addition, outside of the line connecting the ground contact points of the front and rear casters, a non-grounded auxiliary wheel is provided for preventing overturning, and the diameter of the auxiliary wheel is set at the four corners. The gist is that the diameter of the caster is larger than that of the caster, and the auxiliary wheel protrudes upward from the upper surface of the carriage body .

請求項1記載の本発明によれば、運搬台車は、積荷の偏加重により傾きかけた場合に補助輪が接地して転倒を防止するので、常に安定して運搬することができる。   According to the first aspect of the present invention, the transport cart can be stably transported at all times because the auxiliary wheel is brought into contact with the ground to prevent the vehicle from falling when tilted by the unbalanced load of the load.

また、補助輪の径は、4隅のキャスターの径よりも大としたので、より確実に補助輪による転倒を防止が期待できる。   Moreover, since the diameter of the auxiliary wheel is larger than the diameter of the casters at the four corners, it can be expected that the auxiliary wheel will be prevented from falling over more reliably.

さらに、補助輪は台車本体上まで突出するのでこの突出部分が長尺物を台車本体の幅内に収めて載置する際の位置の目安となる。積荷が台車本体からはみ出すと補助輪に載ることになり、積荷が安定しないので、使用者に積荷に位置の注意を促すことができる。 Furthermore, since the auxiliary wheel protrudes up to the cart body, this projecting portion serves as a guide for the position when the long object is placed within the width of the cart body. When the load protrudes from the main body of the carriage, the load is placed on the auxiliary wheel, and the load is not stable, so that the user can be alerted to the position of the load.

請求項2記載の本発明は、補助輪は、台車本体の外周よりも外側に位置することを要旨とするものである。   The gist of the present invention described in claim 2 is that the auxiliary wheel is located outside the outer periphery of the carriage body.

請求項2記載の本発明によれば、補助輪は、台車本体の外周よりも外側に位置することで4隅にキャスターが旋回した場合でも、その中間にある補助輪の接地点が4隅のキャスターの接地点よりも外側にあるので、確実に傾きかけた場合に接地して転倒を防止することができる。   According to the second aspect of the present invention, even when the caster turns at the four corners because the auxiliary wheels are located outside the outer periphery of the carriage body, the grounding points of the auxiliary wheels in the middle are the four corners. Since it is located outside the grounding point of the caster, it can be grounded and prevented from falling when it is tilted reliably.

請求項記載の本発明は、補助輪は、脱着可能とすることを要旨とするものである。 The gist of the present invention described in claim 3 is that the auxiliary wheel is detachable.

請求項記載の本発明によれば、必要に応じて台車本体に補助輪を設けることができ、また、その交換も容易である。 According to the third aspect of the present invention, auxiliary wheels can be provided on the main body of the carriage as required, and replacement thereof is easy.

請求項記載の本発明は、台車本体上に長尺物の前後を載置するように間隔を存して複数台を同じ向きで配置することを要旨とするものである。 The gist of the present invention described in claim 4 is that a plurality of vehicles are arranged in the same direction at intervals so that the front and rear of the long object are placed on the cart body.

請求項記載の本発明によれば、間隔を存して同じ向きで配置した複数台の運搬台車で長尺物の前後を載置することで、載置台の長さが短く、長尺物には不向きな運搬台車でも、これを用いて鉄筋等の長尺物を運搬することができる。また、各運搬台車は、鉄筋等の長尺物を台車本体で部分的に支承するので、長尺物のよれ等で偏加重により傾きを起こし易いが、傾きかけた場合に補助輪が接地して転倒を防止する。 According to this invention of Claim 4 , the length of a mounting base is short by mounting the front and back of a long thing with the several conveyance trolley arrange | positioned in the same direction at intervals, and a long thing It is possible to transport a long object such as a reinforcing bar using a transport cart that is unsuitable for the rebar. In addition, each transport cart supports a long object such as a rebar partially by the main body of the cart, so it tends to tilt due to uneven load due to the slack of the long object, but when it leans, the auxiliary wheel touches down. To prevent falls.

以上述べたように本発明の運搬台車は、動力なしの手押しの運搬台車で、安定状態で運搬移動できるものである。   As described above, the transport cart of the present invention is a hand cart without power and can be transported and moved in a stable state.

以下、図面について本発明の実施の形態を詳細に説明する。図1は本発明の運搬台車の1実施形態を示す使用状態の側面図、図2は同上平面図、図3は同上正面図である。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of a transporting carriage according to an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a front view of the same.

図4、図5に示すように、本発明の運搬台車は、鉄製またはアルミニウム合金製の角パイプによるフレーム6と、このフレーム6の上部に接合される鉄製またはアルミニウム合金製の載置板であるベース7とで構成される平面長方形の台車本体1の下側に、台座2bに車輪2aを回転自在に取付けたキャスター2を設けたものである。   As shown in FIGS. 4 and 5, the transport carriage of the present invention is a frame 6 made of a square pipe made of iron or aluminum alloy, and a mounting plate made of iron or aluminum alloy joined to the upper part of the frame 6. A caster 2 in which wheels 2a are rotatably attached to a pedestal 2b is provided on the lower side of a flat rectangular cart body 1 composed of a base 7.

キャスター2は、前記台車本体の裏面の周辺部の少なくとも四隅に取付けたものの他に、少なくとも四隅に取付けた旋回キャスター2をつなぐ輪郭線の内側で、使用時の進行方向と同じ方向の縦列に2輪以上のキャスター20を設けた。   In addition to the casters 2 attached to at least the four corners of the peripheral portion of the rear surface of the bogie body, the casters 2 are arranged in a column in the same direction as the traveling direction at the time of use inside the contour line connecting the swivel casters 2 attached to at least the four corners. A caster 20 having more than a wheel was provided.

かかる台車本体1の四隅の角部では、フレーム6を構成する縦横の角パイプをアルミニウムなどによる押出し形材で形成、全体形状が平面L字形であるコーナー部材5で接合する。コーナー部材5には、手押し棒3が着脱自在に挿着される。   At the corners of the four corners of the cart body 1, vertical and horizontal square pipes constituting the frame 6 are formed of extruded shapes made of aluminum or the like, and are joined by corner members 5 whose overall shape is a plane L shape. A hand bar 3 is detachably attached to the corner member 5.

キャスター2には、ブレーキ付きキャスターとブレーキ付きでないキャスターとがあり、ブレーキ付きキャスターは台車本体の四隅のコーナー部のうち、前後のいずれかの左右の双方、もしくは一方に設けられ、ヨーク(把持体)2cと、車輪2aと、ブレーキシュー16と、ブレーキペダル17とからなる。   The caster 2 includes a caster with a brake and a caster without a brake, and the caster with a brake is provided at both the front and rear left and right or one of the four corners of the main body of the carriage. ) 2c, wheel 2a, brake shoe 16, and brake pedal 17.

ブレーキペダル17は、金属板を曲げ加工してなるものとしており、一端の操作部18を踏み付けて揺動させることにより、ブレーキシュー16を車輪2aに押しつけて車輪2aを固定するものである。   The brake pedal 17 is formed by bending a metal plate, and presses the brake shoe 16 against the wheel 2a to fix the wheel 2a by stepping on and swinging the operation portion 18 at one end.

そして、ブレーキペダル17は、ブレーキ解除時に車輪2aが前後方向に向いた場合に、平面視して、前記操作部18が台車本体の周囲から顕出するものとした。   The brake pedal 17 is assumed to be exposed from the periphery of the cart body in a plan view when the wheel 2a faces in the front-rear direction when the brake is released.

ブレーキ操作は、ブレーキペダル17を足で踏みこむと、ブレーキペダル17が押し下がり、ブレーキシュー16が車輪2aに押しつけてられて車輪2aを固定し、ブレーキ解除にはブレーキペダル17を足で押し上げると、ブレーキシュー16の車輪2aへの係合が解かれるものである。   When the brake pedal 17 is depressed with the foot, the brake pedal 17 is depressed, the brake shoe 16 is pressed against the wheel 2a to fix the wheel 2a, and the brake pedal 17 is lifted with the foot to release the brake. The engagement of the brake shoe 16 with the wheel 2a is released.

ブレーキ付きキャスターは、台車本体1の裏面の周辺部の少なくとも四隅のいずれかに取付ける場合に、四隅には手押し棒3を挿着するためのコーナー部材5が取付けられることから、手押し棒3、コーナー部材5を避けて回転できるように「旋回偏心半径+キャスター半径」の分だけ垂下部分から台車本体の内側に入った箇所に取付けられる。   When the caster with a brake is attached to at least one of the four corners of the periphery of the back surface of the cart body 1, corner members 5 for attaching the hand bar 3 are attached to the four corners. In order to be able to rotate while avoiding the member 5, it is attached to a portion that enters the inside of the cart body from the hanging portion by the amount of “swing eccentric radius + caster radius”.

図11に示すように、台車本体1の長手方向側部の中央位置で、車軸4aをもって横側に張り出すようにして補助輪4を転倒防止用として設けた。すなわち、4隅のキャスター2のうち、前後に並ぶキャスター2の中間で、かつ、この前後のキャスター2の接地点同士を結ぶ線αよりも外側Xに位置させて補助輪4を転倒防止用として設けたものである。図11中βはキャスター2の接地点の軌跡、γはキャスター2の旋回中心で、前記前後のキャスター2の接地点同士を結ぶ線αは、接地点の軌跡βの最も台車本体1の長手方向側部に寄った位置を結んだものである。   As shown in FIG. 11, the auxiliary wheel 4 is provided for preventing overturning so as to protrude laterally with the axle 4 a at the central position of the longitudinal side portion of the cart body 1. That is, among the casters 2 at the four corners, the auxiliary wheel 4 is used for preventing the overturning by being positioned in the middle of the casters 2 arranged in front and rear and outside the line α connecting the ground contact points of the front and rear casters 2. It is provided. In FIG. 11, β is the locus of the contact point of the caster 2, γ is the turning center of the caster 2, and the line α connecting the contact points of the preceding and following casters 2 is the longest direction of the cart body 1 of the contact point locus β. It connects the positions close to the side.

図10に補助輪4の構造を示すと、車軸4aが貫通する中心部に対して、ベアリング4bを軸受けとして組み入れ、ホィール板4dの外周にタイヤゴム4cを配設したタイヤタイプのもので、ホィール板4dの代わりにスポークによるものとすることもできる。   The structure of the auxiliary wheel 4 is shown in FIG. 10, which is of a tire type in which a bearing 4b is incorporated as a bearing and a tire rubber 4c is disposed on the outer periphery of the wheel plate 4d with respect to the center portion through which the axle 4a passes. It is also possible to use spokes instead of 4d.

この補助輪4を取り付けるための車軸受け13は台車本体1のフレームと同じくアルミニウム合金製で、本体に車軸4aが貫通する貫通孔を形成し、図9に示すように台車本体1に取り付ける。補助輪4は、台車本体1の左右に、かつ、回転方向を台車本体1の長手方向に向くように回転自在(フリーホィール的)に取りつく。   The axle bearing 13 for attaching the auxiliary wheel 4 is made of an aluminum alloy like the frame of the carriage main body 1, and a through-hole through which the axle 4 a passes is formed in the main body, and is attached to the carriage main body 1 as shown in FIG. 9. The auxiliary wheel 4 is attached to the left and right sides of the cart body 1 so as to be rotatable (freewheel) so that the rotation direction is directed to the longitudinal direction of the cart body 1.

補助輪4の大きさは、その径が前記4隅のキャスター2の径よりも大とするもので、台車本体1の上まで突出し、かつ、前記4隅のキャスター2がすべて接地する通常時には非接地である径のものである。   The size of the auxiliary wheel 4 is such that its diameter is larger than the diameter of the casters 2 at the four corners, protrudes above the cart body 1 and is non-normal at the time when all the casters 2 at the four corners are grounded. It is of a diameter that is grounded.

前記車軸受け13を台車本体1のフレームにボルト等で着脱自在に取り付けるようにすることで、補助輪4を一般の台車に取り付けることができる。この場合、補助輪4は車軸受け13と車軸4aとが一体物として存在し、さらに、この補助輪4は着色することで、目立たせることができる。   By attaching the wheel bearing 13 to the frame of the carriage main body 1 in a detachable manner with bolts or the like, the auxiliary wheel 4 can be attached to a general carriage. In this case, the auxiliary wheel 4 includes the axle bearing 13 and the axle 4a as an integrated body, and the auxiliary wheel 4 can be made conspicuous by coloring.

また、他の実施形態として、補助輪4は車軸受け13から車軸4aを外すことでも、脱着可能とすることができる。その場合は、車軸受け13は台車本体1のフレームに着けっぱなしとなる。   Further, as another embodiment, the auxiliary wheel 4 can be detachable by removing the axle 4 a from the axle bearing 13. In that case, the wheel bearing 13 remains attached to the frame of the carriage body 1.

なお、本実施形態では、運搬台車は、前記台車本体1の裏面の周辺部の少なくとも四隅に取付けたキャスター2の他に、少なくとも四隅に取付けた旋回キャスター2をつなぐ輪郭線の内側で、使用時の進行方向と同じ方向の縦列に2輪以上のキャスター20を設けた。   In the present embodiment, the transport cart is used inside the contour line connecting the casters 2 attached to at least the four corners in addition to the casters 2 attached to at least the four corners of the periphery of the back surface of the cart body 1 when used. Two or more casters 20 were provided in a column in the same direction as the traveling direction.

また、他の実施形態として、図8に示すように、前記台車本体1の裏面の周辺部の少なくとも四隅に取付けたキャスター2の他に、少なくとも四隅に取付けた旋回キャスター2をつなぐ輪郭線に並べてキャスター20を設け、これにより平面長方形の台車本体1の、長手方向の左右両側にそれぞれ縦列に3輪ずつ旋回キャスターを軸着した運搬台車としてもよい。   As another embodiment, as shown in FIG. 8, in addition to the casters 2 attached to at least the four corners of the peripheral portion of the rear surface of the cart body 1, the swivel casters 2 attached to at least the four corners are arranged in a contour line. A caster 20 may be provided, whereby a carriage cart may be provided in which a swivel caster is axially mounted on each of the left and right sides in the longitudinal direction of the flat rectangular cart body 1 in three columns.

さらに、他の実施形態として、図8に示すように、前記台車本体1の裏面の周辺部の少なくとも四隅に取付けたキャスター2の他に台車本体1の裏面の中央にキャスター20を設けて全部で5輪のキャスターとすることもできる。   Furthermore, as another embodiment, as shown in FIG. 8, a caster 20 is provided at the center of the back surface of the cart body 1 in addition to the casters 2 attached to at least four corners of the peripheral portion of the back surface of the cart body 1. It can also be a five wheel caster.

この他、前記3輪のキャスターのうちの真中のキャスターを前後の2輪の旋回キャスターよりも外側に配置させたものや、台車本体1の裏面の周辺部の少なくとも四隅にのみキャスター2を設けたものなど、種々のタイプのものに適用できる。   In addition, a caster 2 is provided only in at least the four corners of the peripheral part of the rear surface of the main body 1 of the three-wheel caster in which the middle caster is disposed outside the front and rear two-wheel turning casters. Applicable to various types such as

前記実施形態では、補助輪4は、台車本体1の左右に1個づつ設けた例を示したが、これに限定されるものではなく、左右にそれぞれ複数を並べて設けることも可能である。   In the above-described embodiment, an example in which one auxiliary wheel 4 is provided on each of the left and right sides of the cart body 1 is shown. However, the present invention is not limited to this, and a plurality of auxiliary wheels 4 may be provided on the left and right sides.

次に、使用法について説明すると、単独での使用も当然可能であるが、長尺物である鉄筋19を運搬する場合、前記運搬台車は、図1〜図3に示すように、台車本体1上に長尺物である鉄筋19の束の前後を載置するように間隔を存して複数台を同じ向きで配置する。   Next, the usage will be described. Naturally, it can be used alone, but when transporting the rebar 19 which is a long object, the transport cart is a cart body 1 as shown in FIGS. A plurality of units are arranged in the same direction at intervals so as to place the front and back of a bundle of reinforcing bars 19 which are long objects.

前記鉄筋19の束は、クレーン等で吊り下すものであり、台車本体1上に載置するのに、補助輪4が台車本体1上まで端部が突出するのでこの突出部分の間に収めて載置する。なお、手押し棒3の間に鉄筋19の束が載置されている場合には、補助輪4に鉄筋19の束が接触するおそれはない。   The bundle of reinforcing bars 19 is suspended by a crane or the like, and the auxiliary wheel 4 protrudes up to the top of the cart body 1 so as to be placed on the cart body 1. Place. When a bundle of reinforcing bars 19 is placed between the hand bars 3, there is no possibility that the bundle of reinforcing bars 19 contacts the auxiliary wheel 4.

台車本体1にはそれぞれコーナー部材5から手押し棒3が立設し、図1に示すように前後の運搬台車に人が付き、手押し棒3をもって運搬台車を進める。   A hand bar 3 is erected from each corner member 5 on the main body 1, and a person is attached to the front and rear transport carts as shown in FIG. 1, and the transport cart is advanced with the hand bar 3.

鉄筋19の束は運搬台車間の間が長く空き、全体として大きく撚られ、運搬台車に偏荷重がかかり、運搬台車が傾き、図3の矢印に示すように台車本体1上から鉄筋19が落下するおそれがある。   The bundle of rebars 19 is long between the carriages and is twisted largely as a whole. Unbalanced load is applied to the carriages, the carriages are tilted, and the reinforcing bars 19 fall from the carriage body 1 as shown by the arrows in FIG. There is a risk.

本発明では、運搬台車が傾いた際には、補助輪4が接地してそれ以上の転倒を防止するので、常に安定して運搬することができる。   In the present invention, when the transport cart is tilted, the auxiliary wheel 4 is brought into contact with the ground to prevent further overturning. Therefore, the transport cart can always be transported stably.

なお、この補助輪4は長尺物である鉄筋19の束の前後で、かつ、左右1対づつ配置されることになり、鉄筋19の束の全体からみて前後の運搬台車がどの方向に傾いても、すなわち、鉄筋19の束がどのように撚れようとしても対処できるような配置となっている。   The auxiliary wheels 4 are arranged before and after the long bundle of reinforcing bars 19 and one pair on the left and right sides, and in which direction the front and rear transport carts are inclined in view of the entire bundle of reinforcing bars 19. However, in other words, the arrangement is such that a bundle of reinforcing bars 19 can cope with any twist.

本発明において、前記台車本体の裏面の周辺部の少なくとも四隅に取付けるキャスター2が旋回可能であることは、運搬台車が進行方法変更のためには必要な構成であるが、旋回の角度によっては、キャスター2の接地点が内側に移動するように旋回し、転倒しやすくなる。   In the present invention, the fact that the casters 2 attached to at least the four corners of the peripheral part of the back surface of the cart body can be swung is a configuration necessary for the transport cart to change the traveling method, It turns so that the grounding point of the caster 2 moves inward, and it becomes easy to fall down.

このように四隅に取付けるキャスター2が台車本体よりも内側にあるので、積荷が台車本体よりもはみ出していない場合でも、台車が転倒する可能性があるが、補助輪4は台車本体よりも外側にあるので、転倒を防止できる。   Since the casters 2 attached to the four corners are located inside the cart body in this way, the cart may fall even if the load does not protrude from the cart body, but the auxiliary wheel 4 is located outside the cart body. Because there is, can prevent falling.

本発明の鉄筋等の長尺物の運搬台車の1実施形態を示す使用状態の側面図である。It is a side view of the use condition which shows one Embodiment of the conveyance trolley | bogie of long objects, such as a reinforcing bar of the present invention. 本発明の鉄筋等の長尺物の運搬台車の1実施形態を示す使用状態の平面図である。It is a top view of the use condition which shows 1 embodiment of elongate conveyance trolleys, such as a reinforcing bar of the present invention. 本発明の鉄筋等の長尺物の運搬台車の1実施形態を示す使用状態の正面図である。It is a front view of the use condition which shows one Embodiment of the conveyance trolley | bogie of long objects, such as a reinforcing bar of the present invention. 本発明の運搬台車の実施形態を示す平面図である。It is a top view which shows embodiment of the conveyance trolley | bogie of this invention. 本発明の運搬台車の実施形態を示す側面図である。It is a side view which shows embodiment of the conveyance trolley | bogie of this invention. 本発明の運搬台車の実施形態を示す正面図である。It is a front view showing an embodiment of a transportation cart of the present invention. 本発明の運搬台車の実施形態を示す底面図である。It is a bottom view which shows embodiment of the conveyance trolley | bogie of this invention. 本発明の運搬台車の他の実施形態を示す底面図である。It is a bottom view which shows other embodiment of the conveyance trolley | bogie of this invention. 本発明の運搬台車のさらに他の実施形態を示す底面図である。It is a bottom view which shows other embodiment of the conveyance trolley | bogie of this invention. 本発明の運搬台車の補助輪の一部切欠いた正面図である。It is the front view which a part of auxiliary wheel of the transportation cart of the present invention cut away. キャスターと補助輪の位置関係を示す説明図である。It is explanatory drawing which shows the positional relationship of a caster and an auxiliary wheel. 運搬台車の一般例を示す斜視図である。It is a perspective view which shows the general example of a conveyance trolley.

1…台車本体 2…キャスター
2a…車輪 2b…台座
2c…ヨーク 3…手押し棒
4…補助輪 4a…車軸
4b…ベアリング 4c…タイヤゴム
4d…ホィール板 5…コーナー部材
6…フレーム 7…ベース
8…区画 9…取付板
10…ブラインドリベット 11…ボルトとナット
12…挿入孔 12a…支持板
13…車軸受け 13a…貫通孔
16…ブレーキシュー 17…ブレーキペダル
18…操作部 19…鉄筋
20…キャスター
DESCRIPTION OF SYMBOLS 1 ... Bogie body 2 ... Caster 2a ... Wheel 2b ... Base 2c ... Yoke 3 ... Hand bar 4 ... Auxiliary wheel 4a ... Axle 4b ... Bearing 4c ... Tire rubber 4d ... Wheel plate 5 ... Corner member 6 ... Frame 7 ... Base 8 ... Section DESCRIPTION OF SYMBOLS 9 ... Mounting plate 10 ... Blind rivet 11 ... Bolt and nut 12 ... Insertion hole 12a ... Support plate 13 ... Axle bearing 13a ... Through-hole 16 ... Brake shoe 17 ... Brake pedal 18 ... Operation part 19 ... Rebar 20 ... Caster

Claims (4)

平面長方形の台車本体の少なくとも下面4隅にキャスターを下方に向けて軸着し、4隅のキャスターのうち、前後に並ぶキャスターの中間で、かつ、この前後のキャスターの接地点を結ぶ線よりも外側に、前記4隅のキャスターがすべて接地する通常時には非接地の補助輪を転倒防止用として設け、補助輪の径は、4隅のキャスターの径よりも大とし、補助輪は、台車本体の上面よりも上方に突出することを特徴とする運搬台車。 A caster is attached to at least four corners of the lower surface of the flat rectangular cart body with the casters facing downwards. Among the casters at the four corners, the casters are arranged in the middle of the casters lined up and down, and the line connecting the grounding points of the casters before and after Outside, a non-grounded auxiliary wheel is provided for preventing the fall when the four corner casters are all grounded. The diameter of the auxiliary wheel is larger than the diameter of the four corner casters . A transport cart characterized by projecting upward from an upper surface . 補助輪は、台車本体の外周よりも外側に位置する請求項1記載の運搬台車。   The transport cart according to claim 1, wherein the auxiliary wheel is located outside the outer periphery of the cart body. 補助輪は、脱着可能とする請求項1または請求項2記載の運搬台車。   The transport cart according to claim 1 or 2, wherein the auxiliary wheel is detachable. 台車本体上に長尺物の前後を載置するように間隔を存して複数台を同じ向きで配置する請求項1ないし請求項3のいずれかに記載の運搬台車。
The transport cart according to any one of claims 1 to 3, wherein a plurality of vehicles are arranged in the same direction at intervals so as to place the front and back of a long object on the cart body.
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