JP2565200Y2 - Iron fork - Google Patents
Iron forkInfo
- Publication number
- JP2565200Y2 JP2565200Y2 JP1990042210U JP4221090U JP2565200Y2 JP 2565200 Y2 JP2565200 Y2 JP 2565200Y2 JP 1990042210 U JP1990042210 U JP 1990042210U JP 4221090 U JP4221090 U JP 4221090U JP 2565200 Y2 JP2565200 Y2 JP 2565200Y2
- Authority
- JP
- Japan
- Prior art keywords
- link
- claw
- members
- pin hole
- claw member
- 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 - Fee Related
Links
Landscapes
- Shovels (AREA)
- Working Measures On Existing Buildindgs (AREA)
Description
【考案の詳細な説明】 〔考案の利用分野〕 本考案は、アイアンフオークと土工機械本体アームの
連結構造に関し、特に一方の爪部材のステイに直結した
油圧シリンダで上下の爪部材を相対する方向へ開閉操作
するようにしたアイアンフォークに関する。[Detailed description of the invention] [Field of application of the invention] The invention relates to a connection structure between an iron fork and an arm of an earthworking machine, and in particular, a direction in which upper and lower pawl members are opposed by a hydraulic cylinder directly connected to a stay of one pawl member. The present invention relates to an iron fork that can be opened and closed.
土工機械のアーム先端に軸着した上下一対の爪部材を
油圧シリンダで開閉する従来のアイアンフオークは、一
側をアームに枢着した支持リンクと、上下爪部材に各々
一側を枢着した一対の駆動リンクの各々の他側を油圧シ
リンダロツドの先端にピンで連結している。A conventional iron fork, which opens and closes a pair of upper and lower pawl members axially attached to the tip of an arm of an earth-moving machine with a hydraulic cylinder, includes a support link having one side pivotally connected to the arm and a pair of upper and lower pawl members each pivotally connected to one side. The other side of each drive link is connected to the tip of a hydraulic cylinder rod by a pin.
このように、少なくとも三組のリンクを使用するため
部品点数が多くなり、機械加工及び組立工程が複雑にな
るなどコスト高になる要因を持っていた。As described above, since at least three sets of links are used, the number of parts increases, and there are factors that increase costs such as complicated machining and assembling processes.
本考案の目的はリンクを極力減らすことによりシンプ
ルで且つ製造コストを逓減できるアイアンフオークを提
供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an iron fork that is simple and can reduce manufacturing costs by reducing links as much as possible.
上記の目的を達成するために、本考案の特徴は、上爪
部材の基部ピン孔と下爪部材の基部ピン孔を、土工機械
のアームの先端に前後位置をずらせて軸着するととも
に、アームの基部に軸着した油圧シリンダ等の駆動手段
の先端を、前記いずれかの爪部材の背側に一体形成した
ステイのピン孔に枢着し、さらに、本体アームの前記油
圧シリンダによって一方の爪部材を前後方向に回動した
ときに他方の爪部材を相反する方向に回動させるリンク
によって両爪部材の基部を連繋させたことにある。In order to achieve the above object, the present invention is characterized in that the base pin hole of the upper pawl member and the base pin hole of the lower pawl member are axially attached to the tip of the arm of the earth-moving machine by shifting the front-rear position. The distal end of a driving means such as a hydraulic cylinder, which is pivotally mounted on the base portion, is pivotally connected to a pin hole of a stay integrally formed on the back side of any one of the claw members. The base of both claw members is linked by a link that rotates the other claw member in the opposite direction when the member is rotated in the front-rear direction.
上下爪部材間のリンクは螺合部で連結させた分割部材
で構成し、螺合部を介して長さ調節ができるようにして
もよい。The link between the upper and lower claw members may be constituted by a divided member connected by a screw portion, and the length may be adjusted via the screw portion.
本考案のアイアンフオークは一方の爪部材に直結した
油圧シリンダのストロークで該爪部材をその枢着支点を
中心にして前後に回動させると両爪部材間のリンクによ
って他方の爪部材が前記爪部材の動きと反対の方向へ連
動して回動し、一つのリンク操作でアイアンフオークが
開閉駆動される。In the iron fork of the present invention, when the pawl member is rotated back and forth around the pivot point by a stroke of a hydraulic cylinder directly connected to one pawl member, the other pawl member is connected to the pawl by a link between the pawl members. It rotates in conjunction with the direction opposite to the movement of the member, and the opening and closing of the iron fork is driven by one link operation.
さらに、このリンクを螺合部によって長さ調節可能に
した場合はリンクを伸縮して長さを変えるとアイアンフ
オークの開閉度が変化する。Further, when the length of the link is adjustable by a screw portion, the degree of opening and closing of the iron fork changes when the length of the link is changed by expanding and contracting the link.
以下に本考案の実施例について図を参照しながら説明
する。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図において、１は本考案のアイアンフオーク、２はこ
のアイアンフオークを組付ける土木機械（図は省略）の
アーム、３はアイアンフオークを開閉操作する油圧シリ
ンダ等の駆動装置である。In the figure, 1 is an iron fork of the present invention, 2 is an arm of a civil engineering machine (not shown) for assembling the iron fork, and 3 is a driving device such as a hydraulic cylinder for opening and closing the iron fork.
アイアンフオーク１は上爪部材４と下爪部材５を具備
し、各爪部材4,5は第２図に示すように複数のユニツト
を連結フレーム6,7で一体に結合した構成になってい
る。ちなみに、図の実施例では上爪部材４は２本のユニ
ツト4a,4bからなり、下爪部材５は３本ユニツト5a,5b,5
cから構成されている。The iron fork 1 includes an upper claw member 4 and a lower claw member 5, and each of the claw members 4, 5 has a structure in which a plurality of units are integrally connected by connecting frames 6, 7, as shown in FIG. . Incidentally, in the illustrated embodiment, the upper claw member 4 is composed of two units 4a and 4b, and the lower claw member 5 is composed of three units 5a, 5b and 5b.
Consists of c.
上下の爪部材4,5はそれぞれの基部に前記アーム２に
枢着するためのピン孔8,9を設けてある。特に本考案で
は上爪部材４と下爪部材５のピン孔8,9がアーム２の軸
方向（長手方向）に沿って前後に位置をずらせて軸着さ
れるように爪部材先端からピン孔までの寸法（長さ）
l1，l2が異なっており、また、アーム２には前記ピン孔
8,9に対応する二つの取付孔が軸方向に前後位置をずら
せて設けられている。The upper and lower claw members 4, 5 are provided with pin holes 8, 9 for pivotally connecting to the arm 2 at their bases. In particular, in the present invention, the pin holes 8, 9 of the upper claw member 4 and the lower claw member 5 are displaced back and forth along the axial direction (longitudinal direction) of the arm 2 so that the pin holes 8 and 9 are axially attached. Dimensions up to (length)
l 1 and l 2 are different from each other, and the arm 2 has the pin hole
Two mounting holes corresponding to 8, 9 are provided so that the front and rear positions are shifted in the axial direction.
爪部材4,5のいずれか一方（図の実施例では上爪部材
４）の背側、すなわち外側には前記油圧シリンダ３のロ
ツド先端を直結するためのステイ10が一体に形成されて
おり、このステイ10にシリンダロツド3aの先端を枢着す
るピン孔11が設けられている。A stay 10 for directly connecting the tip of the rod of the hydraulic cylinder 3 is integrally formed on the back side of one of the claw members 4 and 5 (the upper claw member 4 in the illustrated embodiment), that is, outside. The stay 10 is provided with a pin hole 11 for pivotally connecting the tip of the cylinder rod 3a.
かくして、上下爪部材4,5は各々の基部取付ピン孔8,9
を、これに対応するアーム２の取付孔にピン８′,9′で
軸着し、シリンダロツド3aの先端を一方の爪部材４に設
けたステイ10のピン孔11にピン11′で軸着するものであ
るが、さらに、前記上爪部材４と下爪部材５は、一方の
爪部材を基部ピン孔を支点として前後に回動したときに
他方の爪部材をこれと相反する方向に回動させるリンク
12によって連繋されている。すなわち、図のように、両
爪部材4,5のピン孔8,9の近傍にリンク12の取付軸13,14
を一体に設け、この取付軸13,14にリンク12をその両側
ピン孔を介して軸着する。Thus, the upper and lower claw members 4 and 5 are respectively connected to the base mounting pin holes 8 and 9.
Are mounted on the corresponding mounting holes of the arm 2 with pins 8 'and 9', and the tip of the cylinder rod 3a is mounted on the pin hole 11 of the stay 10 provided on one of the claw members 4 with the pin 11 '. However, when the upper claw member 4 and the lower claw member 5 are rotated back and forth about one of the claw members with the base pin hole as a fulcrum, the other claw member is rotated in the opposite direction. Link
Linked by twelve. That is, as shown in the figure, the mounting shafts 13 and 14
Are provided integrally, and the link 12 is axially mounted on the mounting shafts 13 and 14 via pin holes on both sides thereof.
リンク12の取付（軸着）位置は前記のように、一方の
爪部材の回動に伴って他方の爪部材をこれと相反する方
向に回動させる場所ならばどこでもよいが、フオークの
開閉操作を効率良くするために、好ましくは図のように
リンク12が両爪部材4,5の基部ピン孔8,9間を交差する位
置関係に取付ける。As described above, the attachment (axial attachment) position of the link 12 may be any location where the other claw member is turned in the opposite direction with the rotation of one claw member. In order to improve the efficiency, the link 12 is preferably mounted in a positional relationship where the link 12 intersects between the base pin holes 8, 9 of the both claw members 4, 5, as shown in the figure.
リンク12は長さが一定の部材に構造してもよいが、よ
り好ましくは図のように螺合部15を介して結合した例え
ばターンバツクル式の分割部材12a,12bで構成し、螺合
部15の螺合長さを調節してリンク12の全長寸法を伸縮で
きるようにする。こうするとリンク12の長さを調節する
ことによりアイアンフオーク１の開閉度をコントロール
することができる。The link 12 may be formed as a member having a fixed length, but is more preferably constituted by, for example, turnbuckle-type divided members 12a and 12b connected via a screwing portion 15 as shown in the drawing. Is adjusted so that the overall length of the link 12 can be expanded and contracted. In this way, the opening / closing degree of the iron fork 1 can be controlled by adjusting the length of the link 12.
第１図の実施例は油圧シリンダロツド3aを連結するス
テイ10を上爪部材４の基部にＬ字型に一体形成してある
が、第３図のようにステイ10を爪部材４の背部中央付近
に設けてもよい。この場合は油圧シリンダのストローク
が長くなるのでステイの高さを低くしてもフオークに充
分な開度を保持させることができる。従って作業中や運
搬中にステイ10が邪魔にならない。In the embodiment shown in FIG. 1, the stay 10 for connecting the hydraulic cylinder rod 3a is formed integrally with the base of the upper pawl member 4 in an L-shape, but as shown in FIG. May be provided. In this case, the stroke of the hydraulic cylinder becomes longer, so that the fork can maintain a sufficient opening even if the height of the stay is reduced. Therefore, the stay 10 does not get in the way during work or transportation.
また、ステイ10は第１図のように上爪部材に設ける場
合に限らず、第４図のように下爪部材５に設けてもよ
い。このことは、上記ステイ10をアーム２の前方に軸着
した爪部材に形成してもよく、また、後方に軸着した部
材に設けてもよいことを意味する。Further, the stay 10 is not limited to being provided on the upper pawl member as shown in FIG. 1, but may be provided on the lower pawl member 5 as shown in FIG. This means that the stay 10 may be formed on a claw member pivotally mounted in front of the arm 2 or may be provided on a member pivotally mounted rearward.
本考案はアイアンフオークの開閉駆動力を一方の爪部
材のステイに直接作用させ、両爪部材間のリンクでフオ
ークを開閉するので使用するリンクは一種で済む。従っ
て、部品点数が少なくて済み、加工、組立、メンテナン
スの手間が著しく合理化される。In the present invention, since the opening and closing driving force of the iron fork is directly applied to the stay of one of the claw members, and the fork is opened and closed by the link between the two claw members, only one link is used. Therefore, the number of parts is small, and the labor of processing, assembling, and maintenance is greatly rationalized.
また、従来にくらべ、リンクの使用を極力減らしてあ
るので構造がシンプルになり、駆動力のロス、騒音等も
大巾に改善される。Further, compared to the conventional art, the use of the link is reduced as much as possible, so that the structure is simplified, and the loss of driving force, noise and the like are greatly improved.
さらに、リンクの長さを調節できるようにした場合は
作業条件に応じてフォークの開閉度を調節することがで
きる。Furthermore, when the length of the link can be adjusted, the degree of opening and closing of the fork can be adjusted according to the working conditions.
第１図は本考案の一実施例によるアイアンフオークの組
立側面図、第２図は第１図の平面図、第３図は本考案の
他の実施例による第１図相当図、第４図は本考案のさら
に他の実施例を示す第１図相当図である。 １…アイアンフオーク、２…アーム、３…油圧シリン
ダ、４…上爪部材、５…下爪部材、8,9,11…ピン孔、10
…ステイ、12…リンク、15…螺合部。1 is an assembled side view of an iron fork according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a diagram corresponding to FIG. 1 according to another embodiment of the present invention, and FIG. FIG. 4 is a diagram corresponding to FIG. 1 showing a further embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Iron fork, 2 ... Arm, 3 ... Hydraulic cylinder, 4 ... Upper nail member, 5 ... Lower nail member, 8, 9, 11 ... Pin hole, 10
... Stay, 12 ... Link, 15 ... Screws.
Claims (2)
基部ピン孔９を、土工機械のアーム２の先端に前後位置
をずらせて軸着するとともに、アーム２の基部に軸着し
た油圧シリンダ３等の駆動手段の先端を、前記いずれか
の爪部材の背側に一体形成したステイ10のピン孔11に枢
着し、さらに、本体アーム２の前記油圧シリンダ３によ
って一方の爪部材を前後方向に回動したときに他方の爪
部材を相反する方向に回動させるリンク12によって両爪
部材４、５の基部を連繋させたことを特徴とするアイア
ンフオークと土工機械本体アームの連結構造1. A base pin hole 8 of an upper claw member 4 and a base pin hole 9 of a lower claw member 5 are axially attached to the tip of the arm 2 of the earth-moving machine with the front-rear position shifted. The leading end of the driving means such as the hydraulic cylinder 3 is pivotally connected to the pin hole 11 of the stay 10 integrally formed on the back side of any one of the claw members. An iron fork and an earthwork machine main body, wherein the bases of both claw members 4, 5 are connected by a link 12 for rotating the other claw member in the opposite direction when the claw member is rotated in the front-rear direction. Connection structure
して長さ調節可能な部材で構成したことを特徴とする請
求項（１）記載のアイアンフオークと土工機械本体アー
ムの連結構造2. The iron fork and earthworking machine body arm according to claim 1, wherein the link between the pawl members 4, 5 is constituted by a member whose length can be adjusted via a threaded portion. Connection structure
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042210U JP2565200Y2 (en) | 1990-04-20 | 1990-04-20 | Iron fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042210U JP2565200Y2 (en) | 1990-04-20 | 1990-04-20 | Iron fork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH041249U JPH041249U (en) | 1992-01-08 |
| JP2565200Y2 true JP2565200Y2 (en) | 1998-03-11 |
Family
ID=31553552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990042210U Expired - Fee Related JP2565200Y2 (en) | 1990-04-20 | 1990-04-20 | Iron fork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2565200Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074710U (en) * | 1993-06-22 | 1995-01-24 | 松下電工株式会社 | 2-tier parking system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173587U (en) * | 1984-04-25 | 1985-11-16 | 飯田 星祥 | ▲Pulling machine |
-
1990
- 1990-04-20 JP JP1990042210U patent/JP2565200Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH041249U (en) | 1992-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |