JPS599480B2 - Telescopic ram in forklift truck - Google Patents
Telescopic ram in forklift truckInfo
- Publication number
- JPS599480B2 JPS599480B2 JP5696278A JP5696278A JPS599480B2 JP S599480 B2 JPS599480 B2 JP S599480B2 JP 5696278 A JP5696278 A JP 5696278A JP 5696278 A JP5696278 A JP 5696278A JP S599480 B2 JPS599480 B2 JP S599480B2
- Authority
- JP
- Japan
- Prior art keywords
- ram
- inner ram
- annular
- forklift truck
- top surface
- 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.)
- Expired
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Description
【発明の詳細な説明】
本発明は、コイルや鋼管等環状物の荷役作業に使用され
るフォークリフトトラックの伸縮ラムに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a telescopic ram for a forklift truck used for loading and unloading annular objects such as coils and steel pipes.
最も一般的なラム固定式のフォークリフトトラックにお
いては、荷役作業すべきコイルや鋼管等の環状物が、た
とえば第１図イに示す如く溝や仕切り等の奥に並置され
ている場合あるいは第１図口に示す如く他の環状物にて
挾まれた奥側に置かれている場合等のように、車両の進
入不可能な場所に置かれている場合には、ラムが環状物
まで届かず該環状物を聖出すこと（以下、このことを奥
摩り作業という。In the most common type of forklift truck with a fixed ram, the annular objects such as coils and steel pipes that are to be handled are juxtaposed deep inside a groove or partition, as shown in Figure 1A, or If the vehicle is placed in a place where it is impossible for the vehicle to enter, such as when the vehicle is placed at the back side sandwiched between other annular objects as shown in the figure, the ram will not reach the annular object. To consecrate the circular object (hereinafter, this is referred to as Okumari work).
）ができない不具合があった。そのため、この不具合を
除去すべく筒状に形成した直径の異なる２本のインナー
ラムとアウターラムとを摺動自在に嵌合するとともに、
同ラム内に内蔵したシリンダーにより伸縮自在となして
前述の奥取り作業を可能とした伸縮ラムが柳案され実施
されている。) was not possible. Therefore, in order to eliminate this problem, two cylindrical inner and outer rams of different diameters are slidably fitted together.
A telescoping ram has been proposed and implemented by Yanagi, which is capable of telescoping using a cylinder built into the ram, thereby making it possible to carry out the above-mentioned cutting work.
ところが、このような筒形の伸縮ラムはラムの有効長さ
（環状物を乗せ得る長さ）を必要に応じて変化できる利
点な有するものの、インナーラムとアウターラムとに段
差が生ずることから荷役作業用としては必らずしも好適
とは言えず、しかもインナーラムによって奥摩りした環
状物をアウターラムの基部側へ乗せ替えるには奥摩りし
た環状物を一旦地面に降ろしてから車両を前・後進させ
なければならないという煩わしさ？伴い作業性が悪い欠
点があり、また僧形の伸縮ラムは面接触であることから
伸縮のための摺動時の摩擦抵抗が大きいほか、環状物を
乗せた状態での伸縮時にはインナーラムの内端上部およ
びアウターラムの先端下部においてとじりを起し易い等
の不具合があった。However, although such a cylindrical telescopic ram has the advantage of being able to change the effective length of the ram (the length that can carry a circular object) as needed, it is difficult to handle cargo due to the difference in level between the inner ram and the outer ram. It is not necessarily suitable for work, and in addition, in order to transfer the annular object that has been cut deep by the inner ram to the base of the outer ram, it is necessary to lower the cut ring object to the ground and then move the vehicle forward.・The annoyance of having to move backwards? This has the drawback of poor workability, and since the monk-shaped telescopic ram is in surface contact, there is a large frictional resistance when sliding for expansion and contraction, and the inner end of the inner ram is damaged when expanding and contracting with a ring-shaped object placed on it. There were problems such as the tendency for binding to occur in the upper part and the lower part of the tip of the outer ram.
本発明は、上述した従来のとくに櫛形の伸縮ラムに見ら
れる不具合を除去して、伸縮動作を軽く行うことができ
るとともに、環状物の奥摩り作業を容易に行うことので
きるフォークリフトトラックにおける伸縮ラムを提供し
ようとするものである。The present invention provides a telescoping ram for a forklift truck that eliminates the above-mentioned problems found in the conventional comb-shaped telescoping ram, allows for light telescoping action, and facilitates back grinding of circular objects. This is what we are trying to provide.
以下、本発明？具体化した図示の実施例について詳述す
る。Is this invention the following? The specific embodiment shown in the drawings will be described in detail.
まず、第１図〜第５図に示す第１の実施例について説明
する。First, a first embodiment shown in FIGS. 1 to 5 will be described.
図において１は車体、５はマストに沿ってリフトローラ
を介して昇降されるリフトブラケットに固定されたフィ
ンガーバー、６はフィンガーパー５にポルト７にて固定
された板状のラムホルダーであり、このラムホルダー６
の前面中央部には前方に向って水平に延在するラム８が
増付けられ、該ラム８は２本のアウターラム９と１本の
インナーラム１０とから構成されている。In the figure, 1 is the vehicle body, 5 is a finger bar fixed to a lift bracket that is raised and lowered along the mast via a lift roller, and 6 is a plate-shaped ram holder fixed to the finger par 5 with a port 7. This ram holder 6
A ram 8 extending horizontally toward the front is added to the center of the front surface of the ram 8, and the ram 8 is composed of two outer rams 9 and one inner ram 10.
２本のアウターラム９は断面コ字形のチャンネル材から
形成されていて、互いに開放側を対向した状態で一定間
隔な置いて並行に配置されるとともにその基端部が前記
ラムホルダー６の前面に固着されている。The two outer rams 9 are formed from a channel material having a U-shaped cross section, and are arranged in parallel with each other at a constant interval with their open sides facing each other, and their base ends are located in front of the ram holder 6. It is fixed.
なお、両アウターラム９はその下側フランジ９ａ同志を
タイプレート１１によって結合されその補強が図られて
いる。The lower flanges 9a of both outer rams 9 are joined together by a tie plate 11 for reinforcement.
インナーラム１０は方形状の中空材から形成されていて
、前記両アウターラム９間に並行に配置されている。The inner ram 10 is formed from a rectangular hollow member and is arranged in parallel between the two outer rams 9.
インナーラム１０の両側面のほぼ中間位置と基部側とに
は、それぞれアウターラム９のコ字形空所内に配置され
て同アウターラム９のフランジ９ａ内面を転動する転動
ローラ１２が回転可能に軸支されていて、インナーラム
１０は該転動ローラ１２を介してアウターラム９に案内
されて前後方向に移動可能とされている。Rolling rollers 12 are rotatably disposed in the U-shaped spaces of the outer ram 9 and roll on the inner surface of the flange 9a of the outer ram 9, at substantially intermediate positions on both sides of the inner ram 10 and on the base side. The inner ram 10 is supported by a shaft, and is guided by the outer ram 9 via the rolling rollers 12 so as to be movable in the front-rear direction.
なお、各転勤ローラ１２にはアウターラム９のウエブ９
ｂ内面を転動するサイドローラ１３が回転可能に付設さ
れていて、これによってインナーラム１０は移動時にお
ける横揺れが防止され安定した動きが与えられる。Note that the web 9 of the outer ram 9 is attached to each transfer roller 12.
b A side roller 13 that rolls on the inner surface is rotatably attached, thereby preventing the inner ram 10 from lateral shaking during movement and providing stable movement.
インナーラム１０の筒孔内には同インナーラム１０を移
動、すなわちラム８を伸縮せしめるためのシリンダー１
４が収容されている。Inside the cylindrical hole of the inner ram 10 is a cylinder 1 for moving the inner ram 10, that is, for expanding and contracting the ram 8.
4 is accommodated.
シリンダー１４はその基部が前記タイプレート１１の基
部上面に立設したブラケット１５にピン１６によって支
持され、ピストンロツド１７の先端がインナーラム１０
両側面の中間部よりもやや先端寄りにピン１８によって
結合されている。The cylinder 14 has its base supported by a pin 16 on a bracket 15 erected on the upper surface of the base of the tie plate 11, and the tip of the piston rod 17 connected to the inner ram 10.
Both sides are connected by a pin 18 slightly closer to the tip than the middle part.
なお、インナーラム１０の基部側は前記シリンダー１４
の基部またはブラケット１５との干渉な避けるために上
面と両側面の一部を除いた部分が切除されている。Note that the base side of the inner ram 10 is connected to the cylinder 14.
In order to avoid interference with the base of the bracket 15 or the bracket 15, the top surface and both side surfaces are partially cut away.
しかして、アウターラム９の上側フランジ９ａ上而及び
インナーラム１０の上面にはそれぞれアルミニウム合金
または銅合金等の摩擦係数の小さい合金からなる尚接部
材２３ａ，２３ｂな取付けるとともに、アウターラム９
側の当接部材２３ａの上面をインナーラム１０側の当接
部材２３ｂの上面よりも梢高く設定し、そしてアウター
ラム９の先端に下り勾配面２４シ形成するとともに、イ
ンナーラム１０の先端には上端が当接部材２３ｂ上面よ
シも高い引き寄せ部材２１が増付けられている。Therefore, contact members 23a and 23b made of an alloy with a small coefficient of friction such as an aluminum alloy or a copper alloy are attached to the upper flange 9a of the outer ram 9 and the upper surface of the inner ram 10, respectively.
The upper surface of the contact member 23a on the side is set higher than the upper surface of the contact member 23b on the inner ram 10 side, and a downwardly sloped surface 24 is formed at the tip of the outer ram 9. A drawing member 21 whose upper end is higher than the upper surface of the contact member 23b is added.
本実施例では上述のように構成したものであり、ラム８
の伸縮動作はシリンダー１４のピストンロツド１７を伸
縮せしめてインナーラム１０をアウターラム９に沿って
転勤ローラ１２を介して前・後進させることによって行
われるものであるが、以下本実施例の伸縮ラムによる環
状物荷役作業の、とくに伸縮動作を必要とする奥摩り作
業について説明する。In this embodiment, the structure is as described above, and the ram 8
The telescopic operation is performed by telescoping the piston rod 17 of the cylinder 14 and moving the inner ram 10 forward and backward along the outer ram 9 via the transfer roller 12. We will explain the work of handling circular objects, especially the back grinding work that requires expansion and contraction movements.
たとえば第１図イに示す如く環状物Ｗが溝や仕切り２２
等の奥に並置されている場合あるいは第１図口に示す如
く他の環状物Ｗ′によって挾まれた奥側に置かれている
場合等のように、車両がそれ以上進行できず縮小状態の
ラム８７５啜状物Ｗに屈かない場合における奥聖り作業
について説明する。For example, as shown in FIG.
If the vehicle is placed in the back of a vehicle, or if it is placed in the back side sandwiched by another annular object W' as shown in the opening of Figure 1, the vehicle cannot proceed any further and is in a reduced state. A description will be given of the deep-sacred work in the case of not yielding to the Ram 875 slurry W.
まず、ラム８を環状物Ｗに対向させてからラム８を伸長
させてインナーラム１０を環状物Ｗの穴に挿入し、しか
るのちラム８をマスト２に沿って上昇させ環状物Ｗシ必
要高さまで持ち上げてから、ラム８を縮小させれば、引
き寄せ部材２１がインナーラム１０上の環状物Ｗを手前
に引き寄せることにより該環状物Ｗをインナーラム１０
の当接部材２３ｂ上から勾配面２４を経てアウターラム
９の当接部材２３ａ上へすべり変位せしめて環状物Ｗの
奥聖りを行うことができる。First, the ram 8 is made to face the annular object W, and then the ram 8 is extended to insert the inner ram 10 into the hole of the annular object W. Then, the ram 8 is raised along the mast 2 to raise the required height of the annular object W. When the ram 8 is contracted after lifting the ram 8, the pulling member 21 pulls the annular object W on the inner ram 10 toward you, thereby pulling the annular object W onto the inner ram 10.
The annular object W can be deep-cleaned by slidingly displacing it from above the abutting member 23b of the outer ram 9 through the inclined surface 24 onto the abutting member 23a of the outer ram 9.
すなわち、車両を固定したままで環状物Ｗを固定のアウ
ターラム９上へ乗せ替えることができるものである。That is, the annular object W can be transferred onto the fixed outer ram 9 while the vehicle remains fixed.
また、環状吻をさらに１個奥増りする場合は車両の位置
を変えるとともに、上記動作な繰り返すことにより別の
環状吻の奥増りを行うことができる（第５図参照）。Further, when increasing the depth of the annular proboscis by one more position, the depth of another annular proboscis can be increased by changing the position of the vehicle and repeating the above operations (see FIG. 5).
すなわち、本実施例はアウターラム９およびインナーラ
ム１０の上面に摩擦係数の小さい当接部材２３ａ，２３
ｂを設け、そしてこの当接部材２３ａ，２３ｂ上を環状
物をすべらせることによって環状物の奥摩り作業を行い
得るものであり、第２図には２個の環状物ｗ，ｗｉを乗
せた場合を示しているが、聖扱う環状物が小さい場合に
はさらに多くの環状物を取出すことができ、いわゆる多
本取り作業なきわめて合理的に実施し得るものである。That is, in this embodiment, contact members 23a and 23 with a small coefficient of friction are provided on the upper surfaces of the outer ram 9 and the inner ram 10.
b, and by sliding the annular object on the abutting members 23a and 23b, it is possible to carry out the back grinding work of the annular object. Although this example is shown, if the circular objects to be handled are small, more circular objects can be taken out, and so-called multi-ring work can be carried out very rationally.
つぎに第６図〜第８図に示す第２の実施例について説明
する。Next, a second embodiment shown in FIGS. 6 to 8 will be described.
本実施例は多数個のテフロンあるいはスチールのボール
２５を前記アウターラム９側の当接部材２３ａに長手方
向に適宜間隔を置いて並設したもので、各ボール２５は
その上面が当接部材２３ａの上面から僅かに突出した状
態で回転可能に埋設されている。In this embodiment, a large number of Teflon or steel balls 25 are arranged in parallel at appropriate intervals in the longitudinal direction on the abutment member 23a on the side of the outer ram 9, and each ball 25 has its upper surface facing the abutment member 23a. It is rotatably buried in a state that slightly protrudes from the top surface of the.
従って本実施例にあってはインナーラム１０の縮ｌＪ′
−ｔｆに引き寄せ部材２１によってアウターラム９上へ
引き寄せられる環状物Ｗはボール２５の回転によって移
動されるたへ前述の第１の実施例におけるすべり移ｔｌ
Ｘ比べてその移動がより円渭になされる利点がある。Therefore, in this embodiment, the contraction lJ' of the inner ram 10 is
Since the annular object W drawn onto the outer ram 9 by the drawing member 21 at -tf is moved by the rotation of the ball 25, the sliding movement tl in the first embodiment described above
Compared to the X, it has the advantage of being more circular in its movement.
なお、ボール２５をローラとすることも可能である。Note that it is also possible to use the ball 25 as a roller.
以上詳述したように、本発明は基端部なラムホルダーに
固定しかつ前方に向って並行に延在した２本のアウタ・
−ラム間にインナーラムを転勤ローラを介して前後方向
の移動可能に支持せしめ、同インナーラムをシリンダー
（でよって往復移動させるように構成したこと（でより
、従来の筒形の伸縮ラムに比べて環状物の奥聖り作業が
容易で、しかもインナーラムの伸縮動作が転勤ローラな
介して行われることから抵抗の少い円渭でかつ軽快なも
のになるとともに、とじりを生ずることもない。As described in detail above, the present invention has two outer rams fixed to the ram holder at the proximal end and extending in parallel toward the front.
- An inner ram is supported between the rams so as to be movable in the front and back direction via a transfer roller, and the inner ram is configured to move back and forth using a cylinder (as compared to a conventional cylindrical telescopic ram) This makes it easy to work on deep cleaning of circular objects, and since the expansion and contraction of the inner ram is carried out via a transfer roller, it is circular and light with less resistance, and does not cause binding. .
とくに、本発明は伸長状態のインナーラム上に乗せた環
状物なインナーラムの縮小時に同インナーラムの先端に
設けた引き寄せ部材によってアウターラム上へ移動せし
めるようにして、インナーラムによって奥増りした環秋
吻のアウターラム上への乗せ替え作業を車両？固定した
状態で行い得るため、環状物の奥取り作業をきわめて合
理的に行うことができ、その作業能率を大幅にできると
ともに、とくに環状物の多本取り作業に有効なものであ
る。In particular, in the present invention, when the inner ram, which is an annular object placed on the extended inner ram, is contracted, it is moved onto the outer ram by a pulling member provided at the tip of the inner ram. Will the vehicle be used to transfer the ring-shaped proboscis onto the outer ram? Since it can be carried out in a fixed state, it is possible to carry out the deep cutting work of annular objects very rationally, greatly increasing the work efficiency, and it is particularly effective for cutting out multiple rings of annular objects.
図面は本発明の実施例を示し、第１図は荷役すべき環状
物の並置能様を示す説明図、第２図は本発明の第１の実
施例を示す伸縮ラムの側面図、第３図は同じく平面図、
第４図は同じく正面図、第５図は伸縮ラムの使用態様な
示す説明図、第６図は本発明の第２の実施例を示す側面
図、第７図は同じく平面図、第８図は同じく正面図であ
る。
６・・・・・・ラムホルダー、８・・・・・・ラム、９
・・・・・・アウターラム、１０・・・・・・インナー
ラム、１２・・・・・−ｉ動ローラ、１４・・・・・・
シリンダー、２３ａ，２３ｂ．．．・・・当接部材、２
１・・・・・・引き寄せ部材。The drawings show embodiments of the present invention, and FIG. 1 is an explanatory view showing the juxtaposition of annular objects to be handled, FIG. 2 is a side view of a telescopic ram showing the first embodiment of the present invention, and FIG. The figure is also a plan view,
FIG. 4 is a front view, FIG. 5 is an explanatory diagram showing how the telescopic ram is used, FIG. 6 is a side view showing the second embodiment of the present invention, FIG. 7 is a plan view, and FIG. is also a front view. 6... Ram holder, 8... Ram, 9
......Outer ram, 10...Inner ram, 12...-i Moving roller, 14...
Cylinder, 23a, 23b. ．． ．． ...Abutment member, 2
1... Attracting member.
Claims (1)
行に延在したチャンネル形状を成す２本のアウターラム
と、両アウターラ広間に並置しかつ該ラムに、転勤ロー
ラを介して前後方向の移動を可能に支持されたインナー
ラムと、インナーラムを往復移動させるシリンダーとか
らなシ、前記アウターラムの上面とインナーラムの上面
とにはそれぞれ上面な弧状に形成した当接部材を増付け
、アウターラム側の当接部材の上面をインナーラム側の
当接部材の上面より僅かに高く形成するとともに、アウ
ターラム側の当接部材の先端上面を下り勾配となし、イ
ンナーラムの先端には上方に向って突出する引き寄せ部
材を形成して、インナーラムの縮小により該インナーラ
ム上の環状物をアウターラム側へ移行可能となしたこと
な特徴とするフォークリフトトラックにおける伸縮ラム
。1. Two outer rams having a channel shape whose base ends are fixed to a ram holder and extending parallel to each other toward the front, and which are arranged in parallel between both outer rams and are provided with a longitudinal direction via a transfer roller. A movably supported inner ram and a cylinder for reciprocating the inner ram, and an upper surface of the outer ram and an upper surface of the inner ram are each provided with an abutment member formed in an arc shape, The top surface of the contact member on the outer ram side is formed slightly higher than the top surface of the contact member on the inner ram side, and the top surface of the tip of the contact member on the outer ram side is sloped downward, and the tip of the inner ram has an upward slope. 1. A telescopic ram for a forklift truck, characterized in that a pulling member is formed that projects toward the inner ram, so that an annular object on the inner ram can be moved to the outer ram side by shrinking the inner ram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5696278A JPS599480B2 (en) | 1978-05-12 | 1978-05-12 | Telescopic ram in forklift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5696278A JPS599480B2 (en) | 1978-05-12 | 1978-05-12 | Telescopic ram in forklift truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54149166A JPS54149166A (en) | 1979-11-22 |
| JPS599480B2 true JPS599480B2 (en) | 1984-03-02 |
Family
ID=13042152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5696278A Expired JPS599480B2 (en) | 1978-05-12 | 1978-05-12 | Telescopic ram in forklift truck |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599480B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS642379U (en) * | 1987-06-24 | 1989-01-09 | ||
| JPH0530030B2 (en) * | 1986-10-30 | 1993-05-07 | Gen Motors Corp |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS573799U (en) * | 1980-06-05 | 1982-01-09 | ||
| US4941798A (en) * | 1987-10-13 | 1990-07-17 | Sft Ag Spontanfordertechnik | Means for manipulating and transporting loads |
| JPH0757680B2 (en) * | 1988-10-26 | 1995-06-21 | 鹿島建設株式会社 | Wall material transportation mounting device |
-
1978
- 1978-05-12 JP JP5696278A patent/JPS599480B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0530030B2 (en) * | 1986-10-30 | 1993-05-07 | Gen Motors Corp | |
| JPS642379U (en) * | 1987-06-24 | 1989-01-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54149166A (en) | 1979-11-22 |
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