JP5106829B2 - Ram equipment - Google Patents

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JP5106829B2
JP5106829B2 JP2006301020A JP2006301020A JP5106829B2 JP 5106829 B2 JP5106829 B2 JP 5106829B2 JP 2006301020 A JP2006301020 A JP 2006301020A JP 2006301020 A JP2006301020 A JP 2006301020A JP 5106829 B2 JP5106829 B2 JP 5106829B2
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ram
shift
base
bodies
control valve
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JP2008114992A (en
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次郎 横山
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Tcm株式会社
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Description

本発明は、例えばフォークリフト等の荷役車両に装備されてコイル等の筒状物を運搬する際に用いられるラム装置の改良に関する。   The present invention relates to an improvement of a ram device that is mounted on a cargo handling vehicle such as a forklift and used to transport a cylindrical object such as a coil.

従来、この種のラム装置としては、単一のラム体を備えたもの(特許文献1,2参照)が一般的であり、単一のラム体を左右方向にサイドシフトさせるもの(特許文献3参照)も知られている。   Conventionally, as this kind of ram device, one having a single ram body (see Patent Documents 1 and 2) is generally used, and a single ram body is laterally shifted in the left-right direction (Patent Document 3). See also).

実開昭52−96868号公報Japanese Utility Model Publication No. 52-96868 実開昭54−167977号公報Japanese Utility Model Publication No. 54-167777 実開昭62−150498号公報Japanese Utility Model Publication No. 62-150498

然しながら、何れのものも、ラム体が単一であったので、筒状物の重量や大きさの如何に拘らず単一の筒状物しか取り扱えず、作業能率が悪いという難点があった。   However, since all of them have a single ram body, there is a problem that only a single cylindrical object can be handled regardless of the weight and size of the cylindrical object, resulting in poor work efficiency.

本発明は、叙上の問題点に鑑み、これを解消する為に創案されたもので、その課題とする処は、筒状物の重量や大きさに応じて数量を加減して運搬する事ができ、トータル的な作業能率の向上を図る事ができるラム装置を提供するにある。   The present invention was devised in view of the above-mentioned problems, and was devised to solve this problem. The problem is that the quantity is adjusted according to the weight and size of the cylindrical object. It is possible to provide a ram device that can improve the total work efficiency.

本発明のラム装置は、基本的には、昇降可能に設けられる基体と、基体に横動可能に設けられて筒状物を持上げ得る左右のラム体と、基体に設けられて各ラム体を横動させる為の左右のシフトシリンダと、各ラム体を個別にシフトさせるべく各シフトシリンダを制御するラムシフト制御弁と、両ラム体を同方向にサイドシフトさせるべく各シフトシリンダを制御するサイドシフト制御弁と、から構成した事に特徴が存する。   The ram device of the present invention basically includes a base body that can be moved up and down, left and right ram bodies that can be moved laterally on the base body and can lift a cylindrical object, and each ram body that is provided on the base body. Left and right shift cylinders for lateral movement, ram shift control valves that control each shift cylinder to shift each ram body individually, and side shifts that control each shift cylinder to side shift both ram bodies in the same direction The feature is that it consists of a control valve.

各ラムシフト制御弁が操作されると、各シフトシリンダが個別に作動されて各ラム体が左右方向に移動される。両ラム体どうしが離れる方向に移動されると、両ラム体の間隔が広がり、両ラム体どうしが合わさる方向に移動されると、両ラム体の間隔が狭くなる。
サイドシフト制御弁が操作されると、各シフトシリンダが同時に作動されて両ラム体が同方向に移動される。この時、両ラム体は、所定の間隔を保ったまま、つまり、合わさった状態や離れた状態のまま左右一方向に移動される。
各シフトシリンダに依り両ラム体のラムシフトとサイドシフトが行えるので、サイドシフトシリンダを割愛できる。
サイドシフト制御弁を設けたので、二つのラムシフト制御弁を操作してサイドシフトさせる場合に比べて、サイドシフト操作が行い易くなる。
When each ram shift control valve is operated, each shift cylinder is individually operated to move each ram body in the left-right direction. When the two ram bodies are moved away from each other, the distance between the two ram bodies is increased. When the two ram bodies are moved toward each other, the distance between the two ram bodies is decreased.
When the side shift control valve is operated, the shift cylinders are actuated simultaneously to move both ram bodies in the same direction. At this time, both the ram bodies are moved in one left-right direction while maintaining a predetermined distance, that is, in a combined state or in a separated state.
The ram shift and side shift of both ram bodies can be performed depending on each shift cylinder, so that the side shift cylinder can be omitted.
Since the side shift control valve is provided, the side shift operation can be easily performed as compared with the case where the two ram shift control valves are operated to perform the side shift.

基体は、左右の側板と、両側板間に設けられた上下の横材と、両側板間に設けられて各横材の上方に位置する上下のシャフトと、各横材と各シャフトの中程どうしを連結する上下の中央板とを備えていると共に、ラム体は、基体の上下のシャフトに摺動可能に設けられた左右のラムベースと、各ラムベースの前側に突設されて筒状物の中心穴に挿入されると共に中央に移動させた際には接合される左右のラムと、各ラムベースに形成されてこれらを中央に移動させた際には基体の中央板との干渉を回避して所定のサイドシフト量を確保する為の切欠とを備えているのが好ましい。この様にすれば、基体に補強用の中央板があっても、ラムベースに切欠を設けているので、左右のラム体を中央に接合させたまま左右方向に支障なくサイドシフトする事ができる。   The base is composed of left and right side plates, upper and lower cross members provided between both side plates, upper and lower shafts provided between both side plates and positioned above each cross member, and the middle of each cross member and each shaft. The ram body includes left and right ram bases slidably provided on the upper and lower shafts of the base, and projecting from the front side of each ram base. Left and right rams that are inserted into the center hole and moved to the center, and formed on each ram base, avoiding interference with the center plate of the base when these are moved to the center It is preferable to provide a notch for securing a predetermined side shift amount. In this way, even if there is a reinforcing central plate on the base, the ram base is notched, so that the left and right ram bodies can be side-shifted without hindrance while being joined at the center.

本発明に依れば、次の様な優れた効果を奏する事ができる。
(1) 基体、ラム体、シフトシリンダ、ラムシフト制御弁、サイドシフト制御弁とで構成し、とりわけ、ラム体を左右二つにする共に、各ラム体をシフトさせるシフトシリンダを設けたので、ラム体を二つにして用いたり、一つに合体させて用いる事ができ、筒状物の重量や大きさに応じて数量を加減して運搬する事ができ、トータル的な作業能率の向上を図る事ができる。
(2) ラム体を左右二つにする共に、各ラム体をシフトさせるシフトシリンダを設けたので、ラム体を二つにして用いたり、一つに合体させて用いる際の切換えを迅速に行う事ができる。
(3) 基体、ラム体、シフトシリンダ、ラムシフト制御弁、サイドシフト制御弁とで構成し、とりわけ、ラムシフト制御弁とサイドシフト制御弁を設けたので、二つのラム体を個別にラムシフトできると共に、二つのラム体を所定間隔を保ったまま一緒にサイドシフトできる。
According to the present invention, the following excellent effects can be achieved.
(1) A base, a ram body, a shift cylinder, a ram shift control valve, and a side shift control valve are provided. In particular, a ram body is provided on both the left and right sides, and a shift cylinder for shifting each ram body is provided. It can be used in two bodies or combined into one body, and can be transported by adjusting the quantity according to the weight and size of the cylindrical object, improving the total work efficiency You can plan.
(2) Since there are two ram bodies and a shift cylinder that shifts each ram body, two ram bodies are used, or two ram bodies are used together or quickly switched when used together. I can do things.
(3) Consists of a base body, a ram body, a shift cylinder, a ram shift control valve, and a side shift control valve. Especially, since the ram shift control valve and the side shift control valve are provided, the two ram bodies can be individually ram shifted, Two ram bodies can be side-shifted together with a predetermined spacing.

以下、本発明の実施の形態を、図面に基づいて説明する。
図1は、本発明のラム装置を示す正面図。図2は、サイドシフトした状態を示す図1と同様図。図3は、図1の側面図。図4は、図1の平面図。図5は、流体圧回路図である。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a ram device of the present invention. FIG. 2 is a view similar to FIG. 1 showing a side-shifted state. FIG. 3 is a side view of FIG. FIG. 4 is a plan view of FIG. FIG. 5 is a fluid pressure circuit diagram.

ラム装置1は、基体2、ラム体3、シフトシリンダ4、ラムシフト制御弁5、サイドシフト制御弁6とからその主要部が構成されて居り、フォークリフト等の荷役車両に適用される。
荷役車両は、図略しているが、走行可能な車体と、これの前側に設けられたマスト装置とを備えて居り、マスト装置は、車体に前後傾動可能に設けられた固定マストと、これに昇降可能に設けられた移動マストと、これに昇降可能に設けられた昇降体と、固定マストに対して移動マストを昇降させるリフトシリンダと、移動マストに対して昇降体を昇降させるリフトチェーン及びシーブ等から構成されている。
The ram device 1 is composed mainly of a base body 2, a ram body 3, a shift cylinder 4, a ram shift control valve 5, and a side shift control valve 6, and is applied to a cargo handling vehicle such as a forklift.
Although the cargo handling vehicle is not shown in the figure, it includes a vehicle body that can travel and a mast device provided on the front side of the vehicle, and the mast device includes a fixed mast provided on the vehicle body so as to tilt forward and backward, and A moving mast provided so as to be able to be lifted and lowered, a lifting body provided so as to be able to be lifted and lowered, a lift cylinder for raising and lowering the moving mast with respect to the fixed mast, and a lift chain and a sheave for raising and lowering the lifting body with respect to the moving mast Etc.

基体2は、昇降可能に設けられたもので、この例では、左右の側板7と、両側板7間に設けられた上下の横材8と、両側板7間に設けられて各横材8の上方に位置する上下の円柱状のシャフト9と、各横材8と各シャフト9の中程どうしを連結する上下の中央板10とを備えている。両横材8の後側には、荷役車両の昇降体となる左右のリフトブラケット11が設けられて居り、これらの外側には、マスト装置の移動マストに沿って転動する上下のエンドローラ12が軸設されている。   The base body 2 is provided so as to be movable up and down. In this example, the left and right side plates 7, the upper and lower cross members 8 provided between the side plates 7, and the cross members 8 provided between the side plates 7. The upper and lower cylindrical shafts 9 located above the upper and lower horizontal plates 8 and the upper and lower central plates 10 that connect the middle portions of the shafts 9 are provided. Left and right lift brackets 11 serving as lifting bodies for the cargo handling vehicle are provided on the rear side of the both cross members 8, and upper and lower end rollers 12 that roll along the moving mast of the mast device are provided outside these. Is provided.

ラム体3は、基体2に横動可能に設けられて筒状物Aを持上げ得る左右のもので、この例では、基体2の上下のシャフト9に摺動可能に設けられた左右のラムベース13と、各ラムベース13の前側に突設されて筒状物Aの中心穴Bに挿入されると共に中央に移動させた際には接合される左右のラム14と、各ラムベース13に形成されてこれらを中央に移動させた際には基体2の中央板10との干渉を回避して所定のサイドシフト量Cを確保する為の切欠15とを備えている。サイドシフト量Cは、実例では、125mmにしてある。   The ram body 3 is provided on the base 2 so as to be laterally movable and can lift the cylindrical object A. In this example, the left and right ram bases 13 provided on the upper and lower shafts 9 of the base 2 are slidable. The left and right rams 14 that are projected on the front side of each ram base 13 and inserted into the center hole B of the cylindrical object A and moved to the center, and formed on each ram base 13. Is provided with a notch 15 for avoiding interference with the central plate 10 of the base 2 and ensuring a predetermined side shift amount C when the base 2 is moved to the center. The side shift amount C is 125 mm in the actual example.

シフトシリンダ4は、基体2に設けられて各ラム体3を横動させる為の左右のもので、この例では、ロッド室16とテール室17を備えた複動型油圧シリンダを用いて居り、各テール側が基体2の左右の側板7に夫々枢結されていると共に、各ロッド側が左右のラム体3のラムベース13に夫々枢結されている。   The shift cylinder 4 is provided on the base body 2 for lateral movement of each ram body 3, and in this example, a double-acting hydraulic cylinder having a rod chamber 16 and a tail chamber 17 is used. Each tail side is pivotally connected to the left and right side plates 7 of the base 2, and each rod side is pivotally connected to the ram bases 13 of the left and right ram bodies 3.

ラムシフト制御弁5は、各ラム体3を個別にシフトさせるべく各シフトシリンダ4を制御するもので、この例では、クローズドセンタ型の手動操作四ポート三位置切換弁が用いられて居り、一次側ポートは、管路18,19に依りポンプ20とタンク21に接続されていると共に、二次側ポートは、管路22,23に依り各シフトシリンダ4のロッド室16とテール室17に夫々接続されている。   The ram shift control valve 5 controls each shift cylinder 4 to shift each ram body 3 individually. In this example, a closed center type manually operated four-port three-position switching valve is used, and the primary side The ports are connected to the pump 20 and the tank 21 through pipes 18 and 19, and the secondary ports are connected to the rod chamber 16 and the tail chamber 17 of each shift cylinder 4 through pipes 22 and 23, respectively. Has been.

サイドシフト制御弁6は、両ラム体3を同方向にサイドシフトさせるべく各シフトシリンダ4を制御するもので、この例では、クローズドセンタ型の手動操作四ポート三位置切換弁が用いられて居り、一次側ポートは、管路24,25に依りポンプ20とタンク21に接続されていると共に、二次側ポートは、管路に26,27依り各シフトシリンダ4のテール室17に夫々接続されている。そして、両シフトシリンダ4のロッド室16どうしは、管路28に依り連通されている。   The side shift control valve 6 controls each shift cylinder 4 so as to side-shift both ram bodies 3 in the same direction. In this example, a closed center type manually operated four-port three-position switching valve is used. The primary side port is connected to the pump 20 and the tank 21 through lines 24 and 25, and the secondary side port is connected to the tail chamber 17 of each shift cylinder 4 through lines 26 and 27, respectively. ing. The rod chambers 16 of both shift cylinders 4 are communicated with each other by a conduit 28.

次に、この様な構成に基づいてその作用を述解する。
各ラムシフト制御弁5が操作されると、各シフトシリンダ4が個別に作動されて各ラム体3が左右方向に移動され、所謂ラムシフトされる。両ラム体3どうしが離間する方向に移動されると、両ラム体3の間隔が広がり、両ラム体3どうしが接合する方向に移動されると、両ラム体3の間隔が狭くなる。
Next, the operation will be described based on such a configuration.
When each ram shift control valve 5 is operated, each shift cylinder 4 is individually operated to move each ram body 3 in the left-right direction, so-called ram shift. When the two ram bodies 3 are moved in the direction in which the ram bodies 3 are separated from each other, the distance between the two ram bodies 3 is increased.

各ラム体3は、筒状物Aの中心穴Bに挿入されて荷役車両のマスト装置に依り上昇される事で筒状物Aを持上げて運搬する事ができる。ラム体3は、左右に二つあるので、二つの筒状物Aを一度に運搬する事ができる。   Each ram body 3 is inserted into the center hole B of the cylindrical object A and is lifted by a mast device of the cargo handling vehicle so that the cylindrical object A can be lifted and transported. Since there are two ram bodies 3 on the left and right, two cylindrical objects A can be transported at a time.

両ラム体3を中央で接合させたならば、一つのラム体3として使用する事ができ、重量や大きさが大きい筒状物Aを運搬する事ができる。   If both the ram bodies 3 are joined at the center, they can be used as one ram body 3, and the cylindrical object A having a large weight and size can be transported.

サイドシフト制御弁6が操作されると、各シフトシリンダ4が同時に作動されて両ラム体3が同方向に移動される。この時、両ラム体3は、所定の間隔を保ったまま、つまり接合された状態や離間された状態のまま一緒に左右一方向に移動され、所謂サイドシフトされる。   When the side shift control valve 6 is operated, the shift cylinders 4 are simultaneously operated to move both the ram bodies 3 in the same direction. At this time, the two ram bodies 3 are moved in the left-right direction together while maintaining a predetermined distance, that is, in a joined state or a separated state, and are so-called side-shifted.

左右のラム体3が接合されたままサイドシフトされる場合、左右のラム体3のラムベース13には、切欠15が形成されているので、その分だけ、つまりサイドシフト量Cだけ一方向にサイドシフトできる。   When the left and right ram bodies 3 are side-shifted while being joined, the notches 15 are formed in the ram bases 13 of the left and right ram bodies 3, and accordingly, the side shift amount C is side by side in one direction. You can shift.

各シフトシリンダ4に依り両ラム体3のラムシフトとサイドシフトが行えるので、サイドシフト専用のサイドシフトシリンダを割愛できる。
サイドシフト制御弁6を設けたので、二つのラムシフト制御弁5を操作してサイドシフトさせる場合に比べて、サイドシフト操作が行い易くなる。
Since each ram body 3 can be ram-shifted and side-shifted by each shift cylinder 4, a side-shift cylinder dedicated to side-shift can be omitted.
Since the side shift control valve 6 is provided, the side shift operation can be easily performed as compared with the case where the two ram shift control valves 5 are operated to perform the side shift.

図1に示す如く、左右のラム体3を中央で接合させた場合には、ラム体3に切欠15が形成されているので、荷役車両の運転席からラム14の先端が見易くなり、所謂前方視界が大幅に向上されてラム作業が行い易くなる。   As shown in FIG. 1, when the left and right ram bodies 3 are joined at the center, the ram body 3 has a notch 15 so that the tip of the ram 14 can be easily seen from the driver's seat of the cargo handling vehicle. The field of view is greatly improved, making it easier to perform ram work.

尚、基体2は、先の例では、中央板10を備えていたが、例えばこれを省略しても良い。この場合には、ラム体3の切欠15を割愛できる。   In addition, although the base | substrate 2 was provided with the center board 10 in the previous example, you may abbreviate | omit this, for example. In this case, the notch 15 of the ram body 3 can be omitted.

本発明のラム装置を示す正面図。The front view which shows the ram apparatus of this invention. サイドシフトした状態を示す図1と同様図。The same figure as FIG. 1 which shows the state which carried out the side shift. 図1の側面図。The side view of FIG. 図1の平面図。FIG. 2 is a plan view of FIG. 流体圧回路図。Fluid pressure circuit diagram.

符号の説明Explanation of symbols

1…ラム装置、2…基体、3…ラム体、4…シフトシリンダ、5…ラムシフト制御弁、6…サイドシフト制御弁、7…側板、8…横材、9…シャフト、10…中央板、11…リフトブラケット、12…エンドローラ、13…ラムベース、14…ラム、15…切欠、16…ロッド室、17…テール室、18,19…管路、20…ポンプ、21…タンク、22〜28…管路、A…筒状物、B…中心穴、C…サイドシフト量。   DESCRIPTION OF SYMBOLS 1 ... Ram apparatus, 2 ... Base | substrate, 3 ... Ram body, 4 ... Shift cylinder, 5 ... Ram shift control valve, 6 ... Side shift control valve, 7 ... Side plate, 8 ... Cross member, 9 ... Shaft, 10 ... Center plate, DESCRIPTION OF SYMBOLS 11 ... Lift bracket, 12 ... End roller, 13 ... Ram base, 14 ... Ram, 15 ... Notch, 16 ... Rod chamber, 17 ... Tail chamber, 18, 19 ... Pipe line, 20 ... Pump, 21 ... Tank, 22-28 ... pipe, A ... cylindrical object, B ... center hole, C ... side shift amount.

Claims (1)

昇降可能に設けられる基体と、基体に横動可能に設けられて筒状物を持上げ得る左右のラム体と、基体に設けられて各ラム体を横動させる為の左右のシフトシリンダと、各ラム体を個別にシフトさせるべく各シフトシリンダを制御するラムシフト制御弁と、両ラム体を同方向にサイドシフトさせるべく各シフトシリンダを制御するサイドシフト制御弁と、を備え、
前記基体は、左右の側板と、両側板間に設けられた上下の横材と、両側板間に設けられて各横材の上方に位置する上下のシャフトと、各横材と各シャフトの中程どうしを連結する上下の中央板とを備えていると共に、ラム体は、基体の上下のシャフトに摺動可能に設けられた左右のラムベースと、各ラムベースの前側に突設されて筒状物の中心穴に挿入されると共に中央に移動させた際には接合される左右のラムと、各ラムベースに形成されてこれらを中央に移動させた際には基体の中央板との干渉を回避して所定のサイドシフト量を確保する為の切欠とを備えていることを特徴とするラム装置。
A base body provided so as to be able to move up and down, left and right ram bodies provided on the base body so as to be able to lift a cylindrical object, left and right shift cylinders provided on the base body for laterally moving each ram body, A ram shift control valve that controls each shift cylinder to shift the ram body individually, and a side shift control valve that controls each shift cylinder to side shift both ram bodies in the same direction ,
The base includes left and right side plates, upper and lower cross members provided between both side plates, upper and lower shafts provided between both side plates and positioned above each cross member, and each cross member and each shaft. The ram body has left and right ram bases slidably provided on the upper and lower shafts of the base body, and a cylindrical object protruding from the front side of each ram base. The left and right rams are joined when they are inserted into the center hole and moved to the center, and the ram base is formed on each ram base to avoid interference with the center plate of the base. And a notch for securing a predetermined side shift amount .
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CN102795578A (en) * 2011-05-23 2012-11-28 杭州友高精密机械有限公司 Fork laterally-moving distance-adjusting device of fork truck

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US2676723A (en) * 1951-10-22 1954-04-27 Yale & Towne Mfg Co Ram construction for industrial lift trucks
JPS4943808Y1 (en) * 1970-12-05 1974-11-30
JPS6136554Y2 (en) * 1980-07-07 1986-10-23
JPH0340246Y2 (en) * 1986-10-01 1991-08-23
JPH0759477B2 (en) * 1989-04-19 1995-06-28 日産自動車株式会社 Forklift shift fork device
JPH0717357B2 (en) * 1990-06-28 1995-03-01 北川自動車株式会社 forklift
JPH11301992A (en) * 1998-04-20 1999-11-02 Kuga Recycle Kk Tire loading vehicle and tire loading method
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