JP2006076514A - Trailing truck - Google Patents

Trailing truck Download PDF

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Publication number
JP2006076514A
JP2006076514A JP2004265296A JP2004265296A JP2006076514A JP 2006076514 A JP2006076514 A JP 2006076514A JP 2004265296 A JP2004265296 A JP 2004265296A JP 2004265296 A JP2004265296 A JP 2004265296A JP 2006076514 A JP2006076514 A JP 2006076514A
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Japan
Prior art keywords
wheel
turning
attached
free wheel
restraining
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JP2004265296A
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Japanese (ja)
Inventor
Tsutomu Tanaka
勤 田中
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TOMAKKU KK
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TOMAKKU KK
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Priority to JP2004265296A priority Critical patent/JP2006076514A/en
Publication of JP2006076514A publication Critical patent/JP2006076514A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a trailing truck having a caster wheel functioning as the caster wheel in a turning mode while functioning as a fixed wheel in a traveling mode. <P>SOLUTION: A turnable trailing tool 20 is provided in a front part of a vehicle body, and a fixed wheel 11 and caster wheels 10, 12 are provided thereon. A blocking body 30 is provided on a side of the caster wheel 12, and the turn of the caster wheel 12 is prevented by the blocking body 30 by the turn of the trailing tool 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、荷物を運搬する牽引される台車の走行に関する。   The present invention relates to traveling of a towed truck that carries a load.

従来、荷物運搬用の台車は、牽引車に牽引されて走行する。又、この牽引台車は、軽量物を運搬するときには、一般的に、前輪が自在旋回可能なキャスタ付きの車輪を用い、後輪は固定式である。
又、重量物を運搬する牽引台車の場合には、前輪と後輪の他に、その中間に中輪が設けてあり、全部で6輪である。
尚、この従来例は文献を列挙するまでもなく周知事項である。
2. Description of the Related Art Conventionally, a truck for carrying goods travels by being pulled by a towing vehicle. Moreover, this tow cart generally uses a wheel with a caster on which a front wheel can freely turn when carrying a lightweight object, and a rear wheel is a fixed type.
In addition, in the case of a towing cart that carries heavy objects, in addition to the front wheels and the rear wheels, a middle wheel is provided between them, and there are a total of six wheels.
This conventional example is a well-known matter without needing to list literatures.

前記重量物を搬送するために、前輪、中輪、後輪を備える牽引台車は、前輪が自在輪で、中輪は固定輪である。又、牽引台車を旋回させるために、後輪は自在輪である。
このような構成の牽引台車において、重量物を積んで走行すると、後輪が自在輪のため、後輪は、平面視、時計方向又は反時計方向に旋回しながら走行する。
そこで、かかる走行時には、後輪が、あたかも、固定輪として走行することが望ましいので、本発明は走行時に固定輪として、旋回時には自在輪として作用する牽引台車を提供する。
In order to convey the heavy objects, a towing cart including a front wheel, a middle wheel, and a rear wheel has a front wheel as a free wheel and a middle wheel as a fixed wheel. In addition, the rear wheel is a free wheel for turning the tow truck.
In the towing cart having such a configuration, when a heavy object is loaded, the rear wheel is a free wheel, so the rear wheel travels while turning in a plan view, clockwise or counterclockwise.
Therefore, since it is desirable that the rear wheel travels as a fixed wheel during traveling, the present invention provides a tow truck that acts as a fixed wheel during traveling and as a free wheel during turning.

請求項1の牽引台車は、車体の前方に回動可能な牽引具を備えていると共に固定輪と自在輪を備えていて走行可能である。そして、自在輪の側部に制止体が設けてあり、前記牽引具が回動すると制止体によって自在輪の旋回を阻止する。
そのため、例えば、牽引車によってほぼ水平状態の牽引具に連結して牽引台車を走行させると、制止体は自在輪を旋回不能の状態で走行する。即ち、自在輪が固定輪として作用する。
一方、牽引具を垂直状態にすると、制止体は自在輪を旋回可能にするので、旋回を円滑に行うことができる。
又、請求項2の牽引台車は、制止体を自在輪の両側に位置するコ字状に形成するものであり、この形状によって、制止体が前後動する距離を短く構成することができる。
The traction cart of claim 1 includes a traction tool that can rotate in front of the vehicle body, and includes a fixed wheel and a universal wheel, and can travel. And the restraining body is provided in the side part of the free wheel, and when the said traction tool rotates, the turning of the free wheel is prevented by the restraining body.
Therefore, for example, when the towing cart is driven by being connected to a towing tool in a substantially horizontal state by a towing vehicle, the stopping body travels in a state in which the free wheel cannot turn. That is, the universal wheel acts as a fixed wheel.
On the other hand, when the traction tool is set to the vertical state, the restraining body enables the free wheel to turn, so that the turning can be performed smoothly.
Further, in the traction carriage of claim 2, the stop body is formed in a U-shape located on both sides of the free wheel. With this shape, the distance in which the stop body moves back and forth can be shortened.

本願の発明は、牽引具の操作により、自在輪を、簡便に、固定輪又は自在輪として作用するように変更することができる。   In the invention of the present application, the free wheel can be easily changed to act as a fixed wheel or a free wheel by operating the traction tool.

本発明の実施の形態を図面を参照して説明する。図1(A)は台板3の一部を残し、他の部分は取り外した牽引台車の平面図、図1(B)は正面図、図1(C)は作用図である。
牽引台車1は、車体と輪体で構成してあり、車体は四角状のフレーム2の上に台板3を載置して構成してある。
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 (A) is a plan view of the towing cart in which a part of the base plate 3 is left and the other part is removed, FIG. 1 (B) is a front view, and FIG. 1 (C) is an operation diagram.
The tow truck 1 is composed of a vehicle body and a ring body, and the vehicle body is configured by placing a base plate 3 on a square frame 2.

又、前記フレーム2の前部の下部には、よく知られた旋回(回転)可能な本体10aに取り付けた、自在輪としての前輪10が取り付けてあり、フレーム2の後部の下部には、旋回可能な本体12aに取り付けてある自在輪としての後輪12が取り付けてある。
又、前記前輪10と後輪12の間のフレーム2の下部には、旋回不可の本体11aに取付けの固定輪としての中輪11が取り付けてある。
Further, a front wheel 10 as a free wheel is attached to a lower part of the front part of the frame 2 and attached to a well-known turning (rotating) main body 10a. A rear wheel 12 as a free wheel attached to a possible main body 12a is attached.
Further, a middle ring 11 is attached to the lower part of the frame 2 between the front wheel 10 and the rear wheel 12 as a fixed wheel attached to the main body 11a that cannot turn.

前記車体の前部には、牽引具20が取り付けてあり、この牽引具20は、車体の前フレームに、一対の板状の取付け片21が溶接で固定してあり、これらの一対の取付け片21の間には、回転可能な回転軸22が横設してある。
又、回転軸22の両端部には、丸棒で構成の一対のフレーム25、25が固定してあり、それらのフレーム25の先端部は、相互に隣接させて、牽引輪28が形成してある。
尚、この牽引具20は、使用時にはほぼ水平状態として、前記牽引輪28を、牽引車に付設の連結棒(図示略)に係止し、未使用時には牽引具20を回動してストッパ(図示略)で停止して略垂直状態にする。尚、この牽引具20を略垂直状態を維持する簡便なロック機構には、常時、牽引具20を引っ張るバネ(図示略)をフレームとの間に設けておく。
A traction tool 20 is attached to the front portion of the vehicle body. The traction tool 20 has a pair of plate-like attachment pieces 21 fixed to the front frame of the vehicle body by welding, and the pair of attachment pieces. Between 21, a rotatable rotating shaft 22 is provided horizontally.
In addition, a pair of frames 25 and 25 made of round bars are fixed to both ends of the rotating shaft 22, and the leading ends of these frames 25 are adjacent to each other, and a tow ring 28 is formed. is there.
The traction tool 20 is in a substantially horizontal state when used, and the traction wheel 28 is locked to a connecting rod (not shown) attached to the towing vehicle. (Not shown) and stop in a substantially vertical state. Note that a spring (not shown) for pulling the traction tool 20 is always provided between the traction tool 20 and the frame in a simple locking mechanism that maintains the traction tool 20 in a substantially vertical state.

前記自在輪の後輪12、12を取付けの本体12a側部には、走行方向に、丸棒状の制止体30、30が取り付けてあり、旋回可能な本体12aに当接して旋回を阻止する。
尚、制止体30、30は、後輪12、12の本体12aが、平面視、時計方向と反時計方向に旋回するのを、1個の制止体30が当接して阻止するため、旋回可能な本体12aの回転軸より後方に突出した長さに形成してある。
On the side of the main body 12a to which the rear wheels 12 and 12 of the universal wheels are attached, round bar-like restraining bodies 30 and 30 are attached in the running direction, and come into contact with the rotatable main body 12a to prevent the turning.
In addition, the restraining bodies 30, 30 can turn because the single restraining body 30 prevents the main body 12a of the rear wheels 12, 12 from turning clockwise and counterclockwise. The main body 12a has a length protruding rearward from the rotation axis.

また、前記制止体30、30の端部は、相互に、その制止体30に直交するリンク棒32に結合してあり、そのリンク棒32の中央には、走行方向に連結棒33が取り付けてある。
そして、前記連結棒33は前記回転軸22に、後記で詳述する移動長さを考慮した角度に取付けのリンク杆24に回動可能に取り付けてある。
尚、前記制止体30、リンク棒32、連結棒33には、台板3の裏面側に設けた支持体(図示略)で支持されている。
Further, the end portions of the restraining bodies 30 and 30 are coupled to a link bar 32 orthogonal to the restraining body 30, and a connecting bar 33 is attached to the center of the link bar 32 in the traveling direction. is there.
The connecting rod 33 is attached to the rotary shaft 22 so as to be rotatable to a link rod 24 attached at an angle in consideration of the moving length described in detail later.
The restraining body 30, the link bar 32, and the connecting bar 33 are supported by a support body (not shown) provided on the back side of the base plate 3.

次に、前記構成の制止体30の作用について説明する。
先ず、牽引台車の走行時には、牽引具20はほぼ水平状態であり、制止体30は後輪12の回転を阻止する位置にある。即ち、自在輪の後輪12が旋回を始めても、制止体30に当って旋回は阻止されて、固定輪として作用する(図1(B))参照)。
Next, the operation of the restraining body 30 having the above configuration will be described.
First, when the tow truck is traveling, the towing tool 20 is in a substantially horizontal state, and the restraining body 30 is in a position that prevents the rear wheel 12 from rotating. That is, even if the rear wheel 12 of the free wheel starts turning, the turning is prevented by hitting the restraining body 30 and acts as a fixed wheel (see FIG. 1B).

一方、牽引台車が停止時には、牽引具20をほぼ垂直状態にするとバネの引っ張りとストッパとでこの状態を維持すると共に、回転軸22に固定のリンク杆24が回動し、この回動に伴って、連結棒33とリンク棒32が前方に移動し、このリンク棒32の移動に伴って、制止体30が前方に移動する。
従って、制止体30は、後輪12の旋回を阻止できなくなり、後輪12は自由に旋回できる(図1(C)参照)。
以上のように、牽引具20の回動操作によって、自在輪の後輪12は固定輪に、容易に変更できる。
On the other hand, when the traction carriage is stopped, when the traction tool 20 is brought into a substantially vertical state, this state is maintained by the tension of the spring and the stopper, and the link rod 24 fixed to the rotary shaft 22 is rotated. Thus, the connecting rod 33 and the link rod 32 move forward, and the stop body 30 moves forward as the link rod 32 moves.
Accordingly, the restraining body 30 cannot prevent the rear wheel 12 from turning, and the rear wheel 12 can freely turn (see FIG. 1C).
As described above, the rear wheel 12 of the free wheel can be easily changed to the fixed wheel by the turning operation of the traction tool 20.

次に、制止体の異なる形状について、図2を参照して説明する。
この制止体30Aの形状は、後輪12を両側から挟む、コ字状の形状である。このコ字状の制止体30Aを使用すると、制止体30Aの長さを短くすることができる。
即ち、後輪12が、平面視、時計方向と反時計方向に旋回するのを阻止すればよいので、後輪12が旋回する中心軸に到らない長さでよいので、リンク杆24も回動による連結棒33とリンク棒32の移動距離を短くすることができる。
Next, different shapes of the restraining body will be described with reference to FIG.
The shape of the stop body 30A is a U-shape that sandwiches the rear wheel 12 from both sides. When this U-shaped restraining body 30A is used, the length of the restraining body 30A can be shortened.
That is, since it is only necessary to prevent the rear wheel 12 from turning in a clockwise direction and a counterclockwise direction in plan view, the length of the rear wheel 12 does not reach the central axis of the rotation, and therefore the link rod 24 is also rotated. The moving distance of the connecting rod 33 and the link rod 32 by movement can be shortened.

(A)は台板を取り外した牽引台車の平面図、(B)は牽引台車の正面図、(C)は作用を説明する図である。(A) is a top view of the towing cart from which the base plate is removed, (B) is a front view of the towing cart, and (C) is a diagram for explaining the operation. (A)は台板を取り外した牽引台車の平面図であり、異なる形状の制止体を取り付けた図、(B)はその牽引台車の正面図、(C)は作用を説明する図である。(A) is a top view of the tow cart from which the base plate is removed, and is a view with a stop body of a different shape attached, (B) is a front view of the tow cart, and (C) is a diagram for explaining the operation.

符号の説明Explanation of symbols

10 前輪
11 中輪
12 後輪
20 牽引具
22 回転軸
24 リンク杆
30 制止体
39A 制止体
32 リンク棒
33 連結棒

DESCRIPTION OF SYMBOLS 10 Front wheel 11 Middle wheel 12 Rear wheel 20 Traction tool 22 Rotating shaft 24 Link rod 30 Stopping body 39A Stopping body 32 Link rod 33 Connecting rod

Claims (2)

車体の前方に回動可能な牽引具を備えると共に固定輪と自在輪を備えていて走行可能な牽引台車であって、
前記自在輪の側部に制止体を設け、
前記牽引具の回動によって、前記制止体を自在輪の回転を阻止可能にすることを特徴とする台車。
A tow truck that has a traction tool that can be rotated in front of the vehicle body and that can travel with a fixed wheel and a free wheel;
A stop is provided on the side of the free wheel,
A cart that makes it possible to prevent the rotation of the free wheel by rotating the traction tool.
制止体を、自在輪の両側に位置するコ字状であることを特徴とする請求項1の台車。

The cart according to claim 1, wherein the restraining body has a U shape located on both sides of the free wheel.

JP2004265296A 2004-09-13 2004-09-13 Trailing truck Pending JP2006076514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004265296A JP2006076514A (en) 2004-09-13 2004-09-13 Trailing truck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004265296A JP2006076514A (en) 2004-09-13 2004-09-13 Trailing truck

Publications (1)

Publication Number Publication Date
JP2006076514A true JP2006076514A (en) 2006-03-23

Family

ID=36156321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004265296A Pending JP2006076514A (en) 2004-09-13 2004-09-13 Trailing truck

Country Status (1)

Country Link
JP (1) JP2006076514A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49145352U (en) * 1973-04-13 1974-12-14
JPS5386763U (en) * 1976-12-16 1978-07-17
JPS55160971U (en) * 1979-05-08 1980-11-19
JPS6347901U (en) * 1986-09-17 1988-03-31
JPH0424801U (en) * 1990-06-22 1992-02-27

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49145352U (en) * 1973-04-13 1974-12-14
JPS5386763U (en) * 1976-12-16 1978-07-17
JPS55160971U (en) * 1979-05-08 1980-11-19
JPS6347901U (en) * 1986-09-17 1988-03-31
JPH0424801U (en) * 1990-06-22 1992-02-27

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