JP2001031383A - Collapsible type heavy object lifting and transporting vehicle - Google Patents
Collapsible type heavy object lifting and transporting vehicleInfo
- Publication number
- JP2001031383A JP2001031383A JP11205273A JP20527399A JP2001031383A JP 2001031383 A JP2001031383 A JP 2001031383A JP 11205273 A JP11205273 A JP 11205273A JP 20527399 A JP20527399 A JP 20527399A JP 2001031383 A JP2001031383 A JP 2001031383A
- Authority
- JP
- Japan
- Prior art keywords
- lifting
- main body
- body base
- lifting arm
- column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、各種機械の製作時
等において重量部品を吊り上げた状態で必要な場所まで
運ぶことのできる折畳み型重量物吊上げ運搬車に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable heavy-lifting truck capable of carrying heavy parts to a required place in a state of being lifted when manufacturing various machines.
【０００２】[0002]
【従来の技術】重量物を持ち上げた状態で必要な場所ま
で運搬しなければならない作業については、機械組立、
補修、その他各種の製造業等で常に存在する。従来は人
力により行なわれていたこのような作業も最近では吊上
げ運搬車(リフター)によるところが多い。市販の簡易な
リフターの一般的な構造は下部に車輪を備えた台車の後
方へ一本の支柱を設け、この支柱の上部へ前方へ伸びる
アームを設け、該アームの基部を回動可能にしてシリン
ダーで上下するようにして荷吊りを可能にしたものが多
い。前輪を二股の開脚ベースで安定性を増すようにした
ものも公知ではあるが、荷を吊った時に安定性を更に確
保する必要があり、両側面にアウトリガを設けるとか、
移動を必要とするときの安定性を考えて前輪間をできる
だけ広くなるように設計されている。左右の前輪間の間
隔が固定されている例が多い。2. Description of the Related Art For work that requires lifting heavy objects to transport them to a required place, it is necessary to carry out mechanical assembly,
It is always present in repair and other manufacturing industries. In recent years, such work, which was conventionally performed manually, is often performed by a lifter (lifter). The general structure of a commercially available simple lifter is provided with a single column behind a bogie equipped with wheels at the bottom, an arm extending forward at the top of this column, and the base of the arm is rotatable. In many cases, the load can be suspended by moving the cylinder up and down. It is also known to increase the stability of the front wheel with a bifurcated base, but it is necessary to further secure stability when a load is hung, and to provide outriggers on both sides,
It is designed to make the distance between the front wheels as wide as possible in consideration of stability when movement is required. In many cases, the distance between the left and right front wheels is fixed.
【０００３】[0003]
【発明が解決しようとする課題】従来のこのようなリフ
ターは、安定性(安全)重視から不使用時においても前方
へ大きく開いた二股の開脚ベースやアウトリガを有して
いたり、背丈も一定の高さを保持した状態であるから、
保管場所をとったり、移動時に緩衝する。リフターその
ものの運搬時においても通常のライトバンのような荷物
室が低くかつ狭い車では無理なものがほとんどである。
また、コンパクトに折り畳む構造としたものでも、例え
ば１〜２ｔもの高重量物を吊上げた状態で安定に移動さ
せることができない。そこで、本発明者は不使用時には
コンパクトに収納でき、使用時には高重量物でも安定し
て吊上げ移動が可能であり、しかも操作性が良好な折畳
み型の重量物吊上げ運搬車を提供すべく検討した。Such a conventional lifter has a bifurcated open leg base and an outrigger which are greatly opened forward even when not in use due to the importance of stability (safety), and has a constant height. Because the height of
Take a storage place or buffer when moving. Even when transporting the lifter itself, it is almost impossible for a car with a low and narrow luggage compartment like a normal light van.
Further, even a compactly folded structure cannot stably move a heavy object of, for example, 1 to 2 tons while being lifted. Therefore, the present inventor has studied to provide a folding type heavy-lifting transport vehicle that can be stored compactly when not in use, can stably lift even heavy objects when in use, and has good operability. .
【０００４】[0004]
【課題を解決するための手段】本発明は、本体ベース前
方に設けた左右に開閉可能な開脚ベース先端へリンクに
よって左右の前輪を常時平行に支持すると共に、後輪を
設けた本体ベースに対して前傾可能な支柱を設け、該支
柱上部にシリンダで上下する吊上げアームを軸支して設
け、支柱に添わせて折り畳んだ吊上げアームを更に支柱
を折畳んで開脚ベースへ添わせて二重折り可能としたこ
とを特徴とする折畳み型重量物吊上げ運搬車である。シ
リンダの油圧は外部の油圧ポンプを利用することもでき
るが、支柱部に手動操作のポンプを設け、その油圧を利
用するのが最も好ましい。SUMMARY OF THE INVENTION The present invention is directed to a main body base provided with a rear wheel and a left and right front wheel which is always supported in parallel by a link to a front end of an openable base which can be opened and closed left and right provided in front of the main body base. A support arm that can be tilted forward is provided, and a lifting arm that moves up and down by a cylinder is provided at the upper part of the support, and the lifting arm folded along with the support is further folded and the support is attached to the open leg base. This is a folding heavy lifting and lifting vehicle characterized by being double foldable. Although an external hydraulic pump can be used for the hydraulic pressure of the cylinder, it is most preferable to provide a manually operated pump on the column and use the hydraulic pressure.
【０００５】また、この折畳み型重量物吊上げ運搬車の
前輪に一端を軸支した持上げ杆をハンドルテコによって
操作可能とし、又は後輪に対してハンドルで制動可能な
ブレーキを設けたのである。更に、後輪の支軸を本体ベ
ースに対して上下方向に遊嵌し、吊上げアームを上下す
るシリンダの油圧経路の開閉バルブを本体ベース側に設
け、前記後輪の支軸で前記バルブの操作を可能として、
吊上げアームに過荷重が掛かって本体ベースが前傾する
と前記バルブを開いてシリンダによる吊上げアームの吊
上げを不能にすると共に吊上げアームが下がるようにし
たのめり防止(前倒れ防止)機構を設けた。[0005] Further, a lifting rod having one end pivotally supported on the front wheel of the foldable heavy-lifting vehicle can be operated by a handle lever, or a brake capable of braking the rear wheel with a handle is provided. Further, the support shaft of the rear wheel is loosely fitted in the vertical direction with respect to the main body base, and an opening / closing valve for a hydraulic path of a cylinder for raising and lowering the lifting arm is provided on the main body base side. As possible,
When an overload is applied to the lifting arm and the main body base is tilted forward, the valve is opened to disable lifting of the lifting arm by the cylinder and to prevent the lifting arm from lowering.
【０００６】[0006]
【発明の実施の形態】図１は本発明の折畳み型重量物吊
上げ運搬車の斜視図、図２は側面図、図３は折り畳んだ
場合の側面図である。本発明の折畳み型重量物吊上げ運
搬車は、いずれも二輪の前輪1a,1bと後輪2a,2bとによっ
て手押しで移動可能である。前輪1a,1bは本体ベース３
の前方に設けた左右に開閉可能な開脚ベース4a,4bの先
端へ設けている。開脚ベース4a,4bと共にリンク5a,5bが
本体ベース３から前輪の軸受6a,6bに設けた突出ブラケ
ット7a,7b間に設けられている。前輪1a,1bの軸受6a,6b
は開脚ベース4a,4bに軸支しているので、開脚ベース4a,
4bの開閉度合いに関係なくリンク5a,5bによって左右の
前輪を常時平行に支持するようにしている。開脚ベース
4a,4bが開いた状態を維持させるために裏面に突起のあ
る開脚維持杆22の突起を開脚ベース4a,4bの上面に設け
た孔に嵌めて開脚ベース4a,4bの閉じるのを防止してい
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a foldable heavy-lifting vehicle according to the present invention, FIG. 2 is a side view, and FIG. The foldable heavy-lifting vehicle of the present invention can be manually moved by two front wheels 1a, 1b and rear wheels 2a, 2b. Front wheels 1a and 1b are body base 3
Are provided at the front ends of the open leg bases 4a and 4b which can be opened and closed right and left. Links 5a and 5b are provided between the projecting brackets 7a and 7b provided on the bearings 6a and 6b of the front wheels from the main body base 3 together with the open leg bases 4a and 4b. Bearings 6a, 6b for front wheels 1a, 1b
Is pivotally supported by the open leg bases 4a, 4b,
Regardless of the opening / closing degree of 4b, the left and right front wheels are always supported in parallel by the links 5a and 5b. Split base
In order to maintain the open state of 4a, 4b, the projection of the leg maintaining rod 22 having a projection on the back surface is fitted into the hole provided on the upper surface of the open leg bases 4a, 4b to close the open leg bases 4a, 4b. Preventing.
【０００７】後輪2a,2bは本体ベース３の後部下方に支
持している。本体ベース３の上部には支柱８が軸９を支
点として前傾可能に設けられており、起立状態を保つた
めに支柱の軸受前方に設けられたピン挿通孔10と支柱８
のピン挿通孔11の両者を合致させてピン12を挿通するよ
うになっている。支柱８の上部(先端部)には吊上げアー
ム13を軸15で軸支しており、この吊上げアーム13は伸縮
自在に内外の二重角パイプで構成しており、支柱８に基
部を固着したシリンダ14を吊上げアーム13に連結してシ
リンダ14による重量物の吊上げを可能にしている。２ｔ
程度の高重量物でも吊上げ可能である。シリンダ14は手
押し油圧ポンプ23による油圧によって操作され、手押し
油圧ポンプ23はそのハンドル取付けシャフト23aを支柱
８から左右に突出させて、その左右突出端部へハンドル
23bを設けている。このハンドルは足踏みハンドルにす
ることもできる。The rear wheels 2a and 2b are supported below the rear part of the main body base 3. A column 8 is provided on the upper part of the main body base 3 so as to be able to tilt forward with the shaft 9 as a fulcrum, and a pin insertion hole 10 provided in front of the bearing of the column to maintain a standing state, and a column 8.
The pin 12 is inserted so that both of the pin insertion holes 11 are aligned with each other. A lifting arm 13 is pivotally supported at the upper portion (tip) of the column 8 by a shaft 15. The lifting arm 13 is formed of an inner and outer double-angled pipe so as to be extendable and contractible, and has a base fixed to the column 8. The cylinder 14 is connected to the lifting arm 13 so that the cylinder 14 can lift a heavy object. 2t
It is possible to lift even heavy objects of the order. The cylinder 14 is operated by hydraulic pressure from a hand-held hydraulic pump 23. The hand-operated hydraulic pump 23 projects a handle mounting shaft 23a from the column 8 to the left and right.
23b is provided. This handle can also be a foot handle.
【０００８】吊上げアーム13を軸15で支柱８に折畳み可
能とし、かつ開脚ベース4a,4bを閉じることができ、更
に支柱８を本体ベース３に軸９で折畳み可能としている
ので、本発明の折畳み型重量物吊上げ運搬車は図３に示
すように開脚ベースへ添わせて二重折り可能であり非常
にコンパクトに収納できる。The lifting arm 13 can be folded on the support 8 by the shaft 15, and the open leg bases 4 a and 4 b can be closed, and the support 8 can be folded on the main body base 3 by the shaft 9. As shown in FIG. 3, the foldable heavy-lifting vehicle can be double-folded along with the open leg base and can be stored very compactly.
【０００９】荷物の吊上げや降ろし作業あるいは保管時
に本発明の折畳み型重量物吊上げ運搬車が移動するのを
防止するために、前輪1a,1bの軸受6a,6bに一端を軸支し
た持上げ杆16a,16bをそれに連結し前輪1a,1bの軸受6a,6
bに中間部を軸支したハンドルテコ17a,17bによって操作
可能とし、ハンドルテコ17a,17bを後方へ回して起こす
と持上げ杆16a,16bが接地すると共に前輪1a,1bを僅かに
持ち上げる(図２中拡大図)。そのことにより前輪の動き
が停止されるようにしている。[0009] In order to prevent the foldable heavy-lifting vehicle of the present invention from moving during lifting or unloading or storage of the load, a lifting rod 16a having one end pivotally supported on bearings 6a, 6b of the front wheels 1a, 1b. , 16b connected to it and bearings 6a, 6 of the front wheels 1a, 1b
When the handle levers 17a, 17b are turned back and raised, the lifting levers 16a, 16b are grounded and the front wheels 1a, 1b are slightly lifted (FIG. 2). Middle enlarged view). Thereby, the movement of the front wheels is stopped.
【００１０】また、後輪に対してハンドル18で制動可能
なブレーキ19を設けている。本発明の折畳み型重量物吊
上げ運搬車による移動の途中で。坂がある場合、ハンド
ル18を操作して移動スピードを制御する。本体ベース３
に軸20で上下方向に回動可能なブレーキ本体の両側へ突
出した円弧状のブレーキ19がハンドル18を下方へ押さえ
ることにより後輪2a,2bに接触して制動する(図１中拡大
図)。[0010] A brake 19 is provided for the rear wheel to be braked by the handle 18. In the course of movement by the foldable heavy load lifter of the present invention. If there is a slope, the steering wheel 18 is operated to control the moving speed. Body base 3
An arc-shaped brake 19 protruding to both sides of a brake body rotatable up and down on a shaft 20 contacts the rear wheels 2a and 2b by pressing down on the handle 18 to apply braking (enlarged view in FIG. 1). .
【００１１】シリンダ14による重量物の吊上げ時、吊上
げアーム13に過荷重を掛けると前方へ転倒する事故が起
こる危険がある。そのために、吊上げアーム13に過荷重
が掛かると警報が鳴るようにすると良いが、この例では
吊上げアーム13に過荷重が掛かるとシリンダ14の伸長を
制限するのめり防止機構21を設けた。のめり防止機構21
の構造は図４に詳細を示すが、シリンダ14へ油圧を掛け
るために支柱８内に設けた手押し油圧ポンプ23(図２中
右方)の油圧経路を本体ベース３の後方まで導き、これ
に開閉バルブ24を設けている。更に、後輪2a,2bの支軸2
5を本体ベース３に設けた軸孔に対して遊嵌して上下に
遊び代を設け、前記支軸25に設けたフランジ27に対し前
記バルブ24の操作レバー26を当接する位置に配置してバ
ルブの開閉を可能にしている。吊上げアーム13に過荷重
が掛かって本体ベース３が前傾すると、前記バルブが本
体と共に持ち上がり、操作レバー26がフランジ27に押さ
れてバルブ24のON-OFF突起が接触して、バルブ24が開い
てシリンダによる吊上げアームの吊上げを不能にすると
共に吊上げアームが下がって、本発明の折畳み型重量物
吊上げ運搬車が前へ倒れるのを防ぐのである。When a heavy object is lifted by the cylinder 14, if an overload is applied to the lifting arm 13, there is a risk that an accident of falling forward may occur. For this purpose, it is preferable that an alarm be sounded when the lifting arm 13 is overloaded. In this example, a bending prevention mechanism 21 is provided to limit the extension of the cylinder 14 when the lifting arm 13 is overloaded. Anti-slip mechanism 21
4, the hydraulic path of the hand-operated hydraulic pump 23 (right side in FIG. 2) provided in the column 8 for applying hydraulic pressure to the cylinder 14 is guided to the rear of the main body base 3, and An open / close valve 24 is provided. Furthermore, the support shaft 2 of the rear wheels 2a, 2b
5 is loosely fitted into a shaft hole provided in the main body base 3 to provide a play allowance up and down, and is disposed at a position where the operation lever 26 of the valve 24 comes into contact with a flange 27 provided on the support shaft 25. The valve can be opened and closed. When the overload is applied to the lifting arm 13 and the main body base 3 tilts forward, the valve is lifted together with the main body, the operating lever 26 is pushed by the flange 27, and the ON-OFF projection of the valve 24 comes into contact, and the valve 24 opens. Thus, the lifting arm cannot be lifted by the cylinder, and the lifting arm is lowered to prevent the folding heavy load lifting truck of the present invention from falling forward.
【００１２】[0012]
【発明の効果】本発明の折畳み型の重量物吊上げ運搬車
は、不使用時にはコンパクトに折り畳むことができるの
で狭いスペースへ収納したり、狭いスペースの小型運搬
車で効率的に運ぶことができる。使用時には前方を開脚
した台車となり高重量物でも安定して吊上げ、倒れるこ
となく安全に移動が可能である。しかも、下り坂がある
場合でも制動が可能で操作性が良好である。According to the present invention, the foldable heavy-lifting vehicle of the present invention can be compactly folded when not in use, so that it can be stored in a small space or can be efficiently transported by a small-sized vehicle with a small space. When used, it becomes a trolley with open legs in front, and can be lifted stably even with heavy objects, and can move safely without falling down. In addition, even when there is a downhill, braking is possible and operability is good.
【図１】図１は本発明の折畳み型重量物吊上げ運搬車の
斜視図である。FIG. 1 is a perspective view of a foldable heavy-lifting vehicle according to the present invention.
【図２】本発明の折畳み型重量物吊上げ運搬車の側面図
である。FIG. 2 is a side view of the folding heavy-lifting vehicle according to the present invention.
【図３】折り畳んだ場合の側面図である。FIG. 3 is a side view when folded.
【図４】図２中Ａ部拡大図である。FIG. 4 is an enlarged view of a portion A in FIG. 2;
1a,1b 前輪 2a,2b 後輪 ３ 本体ベース 4a,4b 開脚ベース 5a,5b リンク 6a,6b 軸受 7a,7b 突出ブラケット ８ 支柱 ９ 軸 10 ピン挿通孔 11 ピン挿通孔 12 ピン 13 吊上げアーム 14 シリンダ 15 軸 16a,16b 持上げ杆 17a,17b ハンドルテコ 18 ハンドル 19 ブレーキ 20 軸 21 のめり防止機構 22 開脚維持杆 23 手押し油圧ポンプ 24 開閉バルブ 25 支軸 26 レバー 27 フランジ 1a, 1b Front wheel 2a, 2b Rear wheel 3 Body base 4a, 4b Open leg base 5a, 5b Link 6a, 6b Bearing 7a, 7b Projection bracket 8 Post 9 Axis 10 Pin insertion hole 11 Pin insertion hole 12 Pin 13 Lifting arm 14 Cylinder 15 Axis 16a, 16b Lifting Rod 17a, 17b Handle Lever 18 Handle 19 Brake 20 Axis 21 Prevention of Ending Mechanism 22 Leg Opening Maintenance Rod 23 Hand Push Hydraulic Pump 24 Open / Close Valve 25 Support Shaft 26 Lever 27 Flange
Claims (3)
な開脚ベース先端にリンクによって左右の前輪を常時平
行に支持すると共に、後輪を設けた本体ベースに対して
前傾可能な支柱を設け、該支柱上部にシリンダで上下す
る吊上げアームを軸支して設け、支柱に添わせて二重に
折り畳んだ吊上げアームを更に支柱を折畳んで開脚ベー
スへ添わせて三重折り可能としたことを特徴とする折畳
み型重量物吊上げ運搬車。A left and right front wheel is always supported in parallel by a link at the front end of an openable base that can be opened and closed to the left and right provided at the front of a main body base, and a column that can lean forward with respect to the main body base provided with a rear wheel is provided. A lifting arm that moves up and down with a cylinder is provided at the upper part of the support column, and the lifting arm that is double-folded along with the support column is further folded and the support arm is attached to the open leg base to enable triple folding. A foldable heavy-lift truck.
ハンドルテコによって操作可能とし、又は、後輪に対し
てハンドルで制動可能なブレーキを設けたことを特徴と
する請求項１記載の折畳み型重量物吊上げ運搬車。2. A brake according to claim 1, wherein a lifting lever having one end pivotally supported by the front wheel is operable by a handle lever, or a brake capable of braking by a handle is provided to the rear wheel. Folding heavy lifting truck.
向に遊嵌し、吊上げアームを上下するシリンダの油圧経
路の開閉バルブを本体ベース側に設け、前記後輪の支軸
で前記バルブの操作を可能として、吊上げアームに過荷
重が掛かって本体ベースが前傾すると前記バルブを開い
てシリンダによる吊上げアームの吊上げを不能にすると
共に吊上げアームが下がるようにしたのめり防止機構を
設けたことを特徴とする請求項１記載の折畳み型重量物
吊上げ運搬車。3. A rear wheel supporting shaft is loosely fitted in a vertical direction with respect to a main body base, and an opening / closing valve for a hydraulic path of a cylinder for raising and lowering a lifting arm is provided on the main body base side. The valve is operated, and when an overload is applied to the lifting arm and the main body base tilts forward, the valve is opened to disable lifting of the lifting arm by the cylinder and to prevent the lifting arm from lowering. The foldable heavy lifting and lifting vehicle according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11205273A JP2001031383A (en) | 1999-07-19 | 1999-07-19 | Collapsible type heavy object lifting and transporting vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11205273A JP2001031383A (en) | 1999-07-19 | 1999-07-19 | Collapsible type heavy object lifting and transporting vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001031383A true JP2001031383A (en) | 2001-02-06 |
Family
ID=16504255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11205273A Pending JP2001031383A (en) | 1999-07-19 | 1999-07-19 | Collapsible type heavy object lifting and transporting vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001031383A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492144B (en) * | 2009-02-27 | 2012-05-02 | 刘祥宝 | Light hydraulic crane |
| CN103318773A (en) * | 2013-07-12 | 2013-09-25 | 国家电网公司 | Transformer hoisting apparatus |
| US10744651B2 (en) | 2015-10-27 | 2020-08-18 | Mitsubishi Electric Corporation | Mirror replacement device for a segmented mirror telescope and mirror replacement method thereof |
-
1999
- 1999-07-19 JP JP11205273A patent/JP2001031383A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492144B (en) * | 2009-02-27 | 2012-05-02 | 刘祥宝 | Light hydraulic crane |
| CN103318773A (en) * | 2013-07-12 | 2013-09-25 | 国家电网公司 | Transformer hoisting apparatus |
| US10744651B2 (en) | 2015-10-27 | 2020-08-18 | Mitsubishi Electric Corporation | Mirror replacement device for a segmented mirror telescope and mirror replacement method thereof |
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