JP3171635U - Casters that can get over steps - Google Patents

Casters that can get over steps Download PDF

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JP3171635U
JP3171635U JP2011005052U JP2011005052U JP3171635U JP 3171635 U JP3171635 U JP 3171635U JP 2011005052 U JP2011005052 U JP 2011005052U JP 2011005052 U JP2011005052 U JP 2011005052U JP 3171635 U JP3171635 U JP 3171635U
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wheel
caster
over
obstacle
height
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明彦 荒井
明彦 荒井
千葉 智
智 千葉
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株式会社新開トランスポートシステムズ
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Abstract

【課題】キャスターを使用した台車などにより、搬送物を移動させようとする際に、キャスターの車輪が凹凸突起路面の段差等の障害物に突き当り、キャスターが回転を停止し台車上の搬送物が慣性で台車から落下するなどの障害が生じている。前記の如き障害物が存在したときでもキャスターの車輪が障害物を乗り越えられる最低地上高の高さまでキャスターの車輪を持ち上げることによって障害物を乗り越えることを可能にし、荷台の走行を停止させることのないようにした段差乗越え可能のキャスターを得る。【解決手段】取付基部2に、車輪6を軸支した車輪支持体3を経方向軸4により旋回自在に支持し、該車輪支持体3に、車輪6の進行方向側下部を囲い車輪の接地面との間に車輪が段差を乗り越えて回転を続行し得る高さhの最低地上高を有して、車輪保護傾斜カバー13を固定して設けた。【選択図】図1[PROBLEMS] To move a transported object by a cart using a caster, etc., when a wheel of the caster hits an obstacle such as a step on an uneven projection road surface, the caster stops rotating, and the transported material on the cart is moved. There are obstacles such as falling from the cart due to inertia. Even when an obstacle such as the above exists, it is possible to get over the obstacle by lifting the wheel of the caster to a height above the ground level where the wheel of the caster can get over the obstacle, and the traveling of the loading platform is not stopped. A caster that can get over the step is obtained. A wheel support 3 that supports a wheel 6 is supported on the mounting base 2 so as to be turnable by a longitudinal axis 4. The wheel protection inclined cover 13 is fixedly provided with a minimum ground height of a height h at which the wheel can step over the step and continue to rotate. [Selection] Figure 1

Description

本考案は、手押式の荷物搬送台車等に用いるキャスターにおいて、搬送経路中に凸出部分等の段差が存在していても、それを乗り越えて荷物を搬送することを可能としたキャスターに関する。   The present invention relates to a caster that is used for a hand-held luggage transport cart or the like, and can transport a load over a step, such as a protruding portion, in a transport path.

従来から、小口の荷物搬送などにキャスター付の手押車が使用されているが、キャスターの車輪の径をあまり大きくすることは出来ず、キャスターの車輪径の関係上、搬送路面上の凸部を小径の車輪で乗り越えるのは容易ではなく、ややもするとキャスターと前記凸部とが接したときにキャスターは進行を停止し、台車に搭載していた荷物等が慣性で台車から落下するという事態が生じ、それが車椅子であれば使用者に不快感を与えることになる。
そのための搬送路上に障害物が存在した際にはそれを排除しながら進むことを可能にした(特許文献1)キャスターが知られでいる。このキャスターは、キャスターの進行先にキャスターの進行を妨げる障害物があったときは、それを排除することによってキャスターは進行するものであって、排除が不可能であればキャスターの進行は阻止される。
Conventionally, wheelbarrows with casters have been used for small baggage transport, etc., but the diameter of the wheels of the casters cannot be made too large. It is not easy to get over with the small-diameter wheel, and if the caster and the convex part come in contact, the caster stops moving, and the load etc. mounted on the cart may fall from the cart due to inertia. If it is a wheelchair, it will cause discomfort to the user.
For this purpose, there is known a caster that enables an object to be moved while an obstacle is present on the conveyance path (Patent Document 1). If there is an obstacle that prevents the caster from progressing at the destination of the caster, the caster will proceed by eliminating it, and if it cannot be eliminated, the caster will be prevented from progressing. The

特開平9−220905号公報JP-A-9-220905

本考案は、キャスターを使用した台車などにより、搬送物を移動させようとする際に、キャスターの車輪が凹凸突起路面の段差等の障害物に突き当り、キャスターが回転を停止し台車上の搬送物が慣性で台車から落下するなどの障害が生じている。   In the present invention, when trying to move a transported object by a cart using a caster, the wheel of the caster hits an obstacle such as a step on the uneven projection road surface, the caster stops rotating and the transported object on the cart There are obstacles such as falling from the carriage due to inertia.

本考案キャスターは、前記の如き障害物が存在したときでもキャスターの車輪が障害物を乗り越えられる最低地上高の高さまでキャスターの車輪を持ち上げることによって障害物を乗り越えることを可能にし、荷台の走行を停止させることのないようにした段差乗越え可能のキャスターを得ることを課題としている。   The caster of the present invention makes it possible to get over the obstacle by lifting the wheel of the caster to the lowest ground level where the wheel of the caster can get over the obstacle even when the obstacle as described above exists. It is an object to obtain a caster that can be stepped over so as not to be stopped.

請求項1記載のキャスターは、取付基部2に、車輪6を軸支した車輪支持体3を経方向軸4により旋回自在に支持し、該車輪支持体3に、車輪6の進行方向側下部を囲い車輪の接地面との間に車輪が段差を乗り越えて回転を続行し得る高さhの最低地上高を有して、車輪保護傾斜カバー13を固定して設けた。   The caster according to claim 1 supports a wheel support 3 that pivotally supports a wheel 6 on a mounting base 2 so as to be turnable by a longitudinal axis 4, and the wheel support 3 has a lower part in the traveling direction side of the wheel 6. A wheel protection inclined cover 13 is fixedly provided between the grounding surface of the enclosure wheel and a ground clearance of a height h at which the wheel can continue to rotate by overcoming a step.

本考案キャスターは、取付基部2に、車輪6を軸支した車輪支持体3を経方向軸4により旋回自在に支持し、該車輪支持体3に、車輪6の進行方向側下部を囲い車輪の接地面との間に車輪が段差を乗り越えて回転を続行し得る高さhの最低地上高を有して、車輪保護カバー13を固定して設けたために、キャスター走行中に、その路面に凹凸或は突起等の段差による障害があったときに、車輪保護傾斜カバー13は、その下面を段差頂部に接することにより段差に乗り上げることが出来て段差にキャスターが当接してその場に停止してしまうようなことがない。   The caster of the present invention supports a wheel support 3 supporting a wheel 6 on a mounting base 2 so as to be turnable by a longitudinal axis 4, and surrounds the lower portion of the wheel 6 in the traveling direction. Since the wheel protection cover 13 is fixed and provided with a ground clearance of a height h that allows the wheel to continue to rotate over a step with the ground contact surface, the road surface is uneven during caster travel. Alternatively, when there is an obstacle due to a step such as a protrusion, the wheel protection inclined cover 13 can be climbed on the step by touching the bottom surface thereof to the top of the step, and the caster comes into contact with the step and stops on the spot. There is no such thing.

前記段差への保護カバーの乗り上げ時、車輪保護傾斜カバー13の最低地上高hは車輪が段差を乗り越えて回転を続行し得る高さであるために、路面とキャスター車輪とが離れて車輪による荷動きの支えが不能となるようなことがない。   When the protective cover rides on the step, the minimum ground height h of the wheel protective inclined cover 13 is a height at which the wheel can go over the step and continue to rotate, so that the road surface and the caster wheel are separated from each other and the load is moved by the wheel. It will not be impossible to support.

本考案キャスターの左側側面。Left side of the inventive caster. 同正面図。The front view. 車輪保護ガイドの一部を取除した状態の正面図。The front view of the state which removed a part of wheel protection guide. 同背面図。The rear view. 同底面図。The bottom view.

本考案キャスター1を図面と共に次に説明する。
本考案キャスター1は、キャスター1を台車等の搬送器具に取り付け固定するための取付基部2に車輪支持体3を経方向軸4により回転自在に取り付け、車輪支持体3の先端には車輪軸5により車輪6を支持している。車輪支持体3は、取付基部2に接する上部は筒状体をなしているが、その下部の筒状体正面と背面には円弧状の切込7及び角形の切込8を設け、両切込間を下方に延ばし先端が偏平面となっている車輪支持腕9,10とし、車輪支持腕9,10間に車輪軸5を配し車輪6を支持している。
Next, the inventive caster 1 will be described with reference to the drawings.
The caster 1 of the present invention has a wheel support 3 rotatably attached to a mounting base 2 for attaching and fixing the caster 1 to a carrier such as a carriage by a longitudinal axis 4, and a wheel shaft 5 is attached to the tip of the wheel support 3. The wheel 6 is supported by. The wheel support 3 has a cylindrical body at the upper part in contact with the mounting base 2, but an arc-shaped cut 7 and a square cut 8 are provided on the front and back of the lower cylindrical body. The wheel support arms 9, 10 are extended downward and the tip ends are uneven, and the wheel shaft 5 is disposed between the wheel support arms 9, 10 to support the wheels 6.

車輪支持腕9,10間には車輪6の進行方向前方側に位置して平面視コ字状の支持枠11を設け、該支持枠11の両側面に垂下した支承板12,12は車輪6の進行方向前面を覆うよう 船形をした車輪保護傾斜カバー13を吊り下げた状態で熔接支持している。   A support frame 11 having a U-shape in plan view is provided between the wheel support arms 9 and 10 in front of the traveling direction of the wheel 6, and the support plates 12 and 12 suspended from both side surfaces of the support frame 11 are provided on the wheel 6. The boat-shaped wheel protection inclined cover 13 is welded and supported in a suspended state so as to cover the front of the traveling direction.

車輪保護傾斜カバー13は、あたかも船底中央に位置する竜骨が先端部よりその深さを次第にカーブを画いて深くした傾斜をし、かつ、先端部が側面視とがって船首状の形状をなし、図1に示す如く車輪6の進行時における先行側を覆って車輪6の進行方向前面側の大部分をカバーしている。この際の車輪保護傾斜カバー13の最低地上高h(図1に図示)は、キャスターが障害物を乗り越えることの出来る最高の高さとする。   The wheel protection inclined cover 13 is inclined as if the keel located at the center of the bottom of the ship has a deeper curve with its depth gradually drawn from the tip, and the tip has a bow-like shape as viewed from the side. As shown in FIG. 1, most of the front side of the traveling direction of the wheel 6 is covered by covering the preceding side when the wheel 6 travels. The minimum ground height h (illustrated in FIG. 1) of the wheel protection inclined cover 13 at this time is the maximum height at which the caster can get over the obstacle.

次に、本考案キャスターを用いて荷物等を搬送する際の作用につき説明する。
図1に示す如きキャスター1を具有する台車が図1の左から右方向に移動したとする。 前方に高さHの段差14が存在している場合、車輪保護傾斜カバー13先端部の高さH以上でなければこの段差は通過できないので避けなければならない。そして段差14の高さがH未満の場合に車輪保護傾斜カバー13先端を段差14より上に位置させ、そのまま台車を押し進めると、キャスター1の車輪保護傾斜カバー13の下面13aは、段差14の頂部角部14aに当接し、更に台車を押し進めると車輪保護傾斜カバー13は段差14に乗り上げて進むことになる。
そして、車輪保護傾斜カバー13の進行方向後端部13bが段差14の台車に近い位置にある第1角部14aに至ると段差14の台車に近い位置にある第1角部14aと車輪6とが当接することになる。この位置では、車輪保護傾斜カバー13の下端と車輪6の下端との間はhの高さの差しかないために、車輪6は容易に段差14の上縁に乗り上げることが出来、従って、キャスター1は安全に段差14を乗り越えることが出来、荷物搬送中にキャスター1が段差によりその進行を停止され、それによる急制動等の動作による荷崩れ等が生ずるのを防止することが可能となる。
Next, a description will be given of the operation when a load or the like is transported using the inventive caster.
It is assumed that a cart having casters 1 as shown in FIG. 1 moves from the left to the right in FIG. If there is a step 14 having a height H ahead, this step must be avoided unless it is higher than the height H of the tip of the wheel protection inclined cover 13. When the height of the step 14 is less than H and the tip of the wheel protection inclined cover 13 is positioned above the step 14 and the carriage is pushed forward, the lower surface 13a of the wheel protection inclined cover 13 of the caster 1 When the carriage abuts against the corner 14a and pushes the carriage further, the wheel protection inclined cover 13 rides on the step 14 and advances.
When the rear end 13b in the traveling direction of the wheel protection inclined cover 13 reaches the first corner 14a at a position close to the carriage at the step 14, the first corner 14a and the wheel 6 at a position near the carriage at the step 14 Will come into contact. In this position, since there is no difference in height between the lower end of the wheel protective inclined cover 13 and the lower end of the wheel 6, the wheel 6 can easily ride on the upper edge of the step 14. Can safely climb over the step 14, and the caster 1 can be prevented from advancing due to the step during conveyance of the load, thereby preventing the collapse of the load caused by the operation such as sudden braking.

1 キャスター
2 取付基部
3 車輪支持体
4 経方向軸
5 車輪軸
6 車輪
7 円弧状切込
8 角形の切込
9 車輪支持腕
10 車輪支持腕
11 支持枠
12 支承板
13 車輪保護傾斜カバー
14 段差
DESCRIPTION OF SYMBOLS 1 Caster 2 Mounting base 3 Wheel support 4 Longitudinal axis 5 Wheel axis 6 Wheel 7 Arc-shaped cut 8 Rectangular cut 9 Wheel support arm 10 Wheel support arm 11 Support frame 12 Bearing plate 13 Wheel protection inclination cover 14 Step

Claims (1)

取付基部2に、車輪6を軸支した車輪支持体3を経方向軸4により旋回自在に支持し、該車輪支持体3に、車輪6の進行方向側下部を囲い車輪の接地面との間に車輪が段差を乗り越えて回転を続行し得る高さhの最低地上高を有して、車輪保護傾斜カバー13を固定して設けたことを特徴とする段差乗越え可能のキャスター。   A wheel support 3 supporting a wheel 6 is supported on the mounting base 2 so as to be turnable by a longitudinal axis 4, and the wheel support 3 surrounds a lower portion in the traveling direction of the wheel 6 and between the ground contact surface of the wheel. A caster capable of climbing over a step, having a minimum ground height of a height h at which the wheel can continue to rotate by overcoming the step, and having a wheel protection inclined cover 13 fixed thereto.
JP2011005052U 2011-08-30 2011-08-30 Casters that can get over steps Expired - Lifetime JP3171635U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019069388A1 (en) * 2017-10-04 2019-04-11 水道機工株式会社 Sludge treatment device
WO2021040199A1 (en) * 2019-08-29 2021-03-04 Samsung Electronics Co., Ltd. Caster device, robot having the same, and method for driving robot

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019069388A1 (en) * 2017-10-04 2019-04-11 水道機工株式会社 Sludge treatment device
JPWO2019069388A1 (en) * 2017-10-04 2020-05-28 水道機工株式会社 Sludge treatment equipment
WO2021040199A1 (en) * 2019-08-29 2021-03-04 Samsung Electronics Co., Ltd. Caster device, robot having the same, and method for driving robot
US11701941B2 (en) 2019-08-29 2023-07-18 Samsung Electronics Co., Ltd. Caster device, robot having the same, and method for driving robot

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