JP2003042139A - Link pin unit for work machine - Google Patents
Link pin unit for work machineInfo
- Publication number
- JP2003042139A JP2003042139A JP2001225244A JP2001225244A JP2003042139A JP 2003042139 A JP2003042139 A JP 2003042139A JP 2001225244 A JP2001225244 A JP 2001225244A JP 2001225244 A JP2001225244 A JP 2001225244A JP 2003042139 A JP2003042139 A JP 2003042139A
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- hole
- head
- link pin
- pedestal
- 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
- Component Parts Of Construction Machinery (AREA)
- Pivots And Pivotal Connections (AREA)
- Agricultural Machines (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は、建設土木作業用機
械や農業機械など作業機のリンクの関節部分を枢支する
のに用いるリンクピン装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a link pin device used for pivotally supporting a joint portion of a link of a working machine such as a construction and civil engineering machine or an agricultural machine.
【０００２】[0002]
【従来の技術】これまで、建設土木作業用機械や農業機
械などの作業機には、アームに接続されるショベル、ブ
レーカー、フォーク及びバケットなど各種アタッチメン
トのリンク機構の関節部分を枢支するためにリンクピン
が使用されている。2. Description of the Related Art Up to now, in working machines such as construction and civil engineering machines and agricultural machines, in order to pivotally support the joint parts of the link mechanism of various attachments such as excavators, breakers, forks and buckets connected to the arms. Link pin is used.
【０００３】一般的に使用されているリンクピンは、図
７に示すように、基端に大径のヘッド部が形成された金
属製円柱状のピンの末端部側周面に、止めボルトの軸部
が挿入可能なボルト孔を貫設するとともに、そのピンの
末部にボルト孔を設けた金属リング製のカラーを嵌めて
そのボルト孔に止めボルトを貫通させ、ダブルナットを
螺着して、作業機のリンク機構の関節部分を枢支してい
る。As shown in FIG. 7, a commonly used link pin has a stopper bolt on the peripheral surface of the end portion of a metal cylindrical pin having a large-diameter head portion formed at the base end. Insert a bolt hole into which the shaft can be inserted, fit a collar made of metal ring with a bolt hole at the end of the pin, insert a stop bolt into the bolt hole, and screw in a double nut. , Pivots the joint part of the link mechanism of the working machine.
【０００４】それらの作業機では、稼動中に振動や衝撃
など複雑な力が加わるので、ナットなどの螺着部分が緩
み止めボルトが外れリンクピンが抜ける虞がある。この
ピンが緩んだり脱落したりすると、作業機の扱うものは
重量物が多く、また各種アタッチメント自体も重量物で
あるために、一旦発生する事故は直ぐに人身事故に繋が
る虞があり、非常に危険である。そのため、止めボルト
の螺着部分が緩まないようにダブルナットなどで確実に
固定しなければならない。そして、緩み止めボルトを固
定するにはボルト頭及びナットを把持するための２種類
の工具を使用して両手で作業しなければならなかった。In these working machines, since a complicated force such as vibration or impact is applied during operation, the threaded portion such as the nut may be loosened, the locking bolt may come off, and the link pin may come off. If this pin becomes loose or falls off, the work machine handles a lot of heavy items and the various attachments themselves are heavy items.Therefore, an accident that occurs once may lead to an injury accident immediately, which is extremely dangerous. is there. For this reason, it is necessary to securely fix the set bolt with a double nut or the like so that the threaded portion does not become loose. Further, in order to fix the loosening prevention bolt, it was necessary to work with both hands using two kinds of tools for gripping the bolt head and the nut.
【０００５】さらに確実に固定する方法としては、例え
ば、ダブルナット部分を溶接で固着してしまうことも行
われている。この方法ではピンからカラーが完全に抜け
なくなり確実に安全ではあるが、この方法では各種アタ
ッチメントの交換のための関節部分の分離できなくなる
ので、アタッチメントの交換が行われる機種には適さな
い難点があった。As a more reliable method of fixing, for example, a double nut portion is fixed by welding. With this method, the collar does not come off completely from the pin, which is definitely safe, but with this method it is not possible to separate the joint part for exchange of various attachments, so there is a drawback that is not suitable for models where attachments are exchanged. It was
【０００６】リンクピンには、他にも、カラーを固定す
るためのＣ型リング被せ止め式、割ピン式、溝キー式や
カラーを使用せずに直接リンクピンの末端部に螺着する
止め板式など各種形状のものが提供され使用されてい
る。前記Ｃ型リング被せ止め式は、Ｃ型のバネリングを
被せて中に挿した止軸を外に出ないようにしたものであ
る。この式では、Ｃ型のバネリングを取り外すときドラ
イバーなどの工具を用いてバネリングを広げて外さなけ
ればならず、潤滑油に濡れたバネリングやリング溝にそ
の工具を挿し込み広げる際に滑らせて工具の先が手に刺
さったりすることがあり非常に危険な作業を伴うもので
あった。さらに、この式のものは構造も複雑で高価なも
のであった。[0006] In addition to the link pin, a C-shaped ring retaining type for fixing the collar, a split pin type, a groove key type, or a retaining member which is screwed directly to the end of the link pin without using the collar. Various shapes such as plate type are provided and used. The C-type ring cover type is a type in which a C-type spring ring is covered to prevent the retaining shaft inserted therein from coming out. In this formula, when removing the C-shaped spring ring, the spring ring must be expanded and removed using a tool such as a screwdriver, and the tool should be slid when inserting the tool into the spring ring or ring groove that has been wet with lubricating oil. The tip of his hand may get stuck in his hand, which is a very dangerous task. Further, the structure of this formula is complicated and expensive.
【０００７】前記割ピン式は、止めボルトに替えて、リ
ンクピンの末端部側周面に設けたピン孔に割ピンを直接
差し込んでリンクピンが抜けないようにする方式であ
る。この方式では、作業中に割ピンが周囲の金属線やコ
ンクリートなどに引っ掛かりやすく、その力で変形した
り抜ける虞がある。前記止め板式は、構造が複雑で高価
な上、その止め板を固定するボルトの緩みにより止め板
が開いてしまう虞があり、止め板を固定するボルトの着
脱も面倒であった。前記溝キー式も、そのキーを固定す
るボルトの緩みによりリンクピンが緩んでしまう虞があ
った。またそのボルトの着脱も面倒であった。The split pin type is a system in which the split pin is inserted directly into a pin hole provided on the peripheral surface of the end portion of the link pin in place of the stop bolt to prevent the link pin from coming off. In this method, the cotter pin is easily caught on the surrounding metal wire or concrete during the work, and there is a possibility that the cotter pin may be deformed or come out by the force. The stopper plate type has a complicated structure and is expensive, and the stopper plate may be opened due to loosening of the bolt for fixing the stopper plate, and the attachment / detachment of the bolt for fixing the stopper plate is troublesome. Also in the groove key type, the link pin may be loosened due to loosening of the bolt fixing the key. It was also troublesome to attach and detach the bolt.
【０００８】また、それらいずれの方式の場合でも、カ
ラーなどからから突出している部分があると、その部分
が作業中に周囲に引っ掛ってピンが外れる原因となるこ
とがある。また、一般的に使用されているダブルナット
で止めるリンクピン以外は、安全性が低く、着脱が面倒
な上に高価であるために殆んど普及していないのが実情
である。In any of these methods, if there is a portion projecting from the collar or the like, that portion may be caught around the work and the pin may come off. In addition, other than a commonly used link pin that is fastened with a double nut, it is not widely used because it has low safety, is difficult to attach and detach, and is expensive.
【０００９】[0009]
【発明が解決しようとする課題】本発明は、上記実情に
鑑みてなされたもので、建設土木作業用機械や農業機械
など作業機のリンクの関節部分を枢支するのに用いるリ
ンクピンにおいて、作業用アタッチメントの交換が容易
にでき且つ安全性に優れ、使用するに際にリンク機構の
機能を確実且つ安定的に確保することができる簡潔な構
造の作業機用リンクピン装置を提供するものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and in a link pin used to pivotally support a joint portion of a link of a working machine such as a construction work machine or an agricultural machine, (EN) Provided is a work machine link pin device having a simple structure in which a work attachment can be easily replaced and excellent in safety, and a function of a link mechanism can be reliably and stably secured when used. is there.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、基端に膨出径部１ａが形成され先端部直
径方向にボルト挿通孔６を貫設し且つそのボルト挿通孔
６の一方側の開口部６ａにボルト頭の台座９を形成した
金属製円柱状のピン１と、前記台座９と符合するボルト
頭孔７と雌ネジ８とを対設した金属製筒状のカラー２
と、頭部にレンチ穴４を設けた止めボルト３とから成る
作業機用リンクピン装置である。SUMMARY OF THE INVENTION In order to solve the above problems, the present invention has a bulging diameter portion 1a formed at a base end thereof and a bolt insertion hole 6 penetrating therethrough in a diameter direction of a distal end portion thereof. 6 has a cylindrical columnar pin 1 made of metal having a pedestal 9 for a bolt head formed in the opening 6a on one side, a bolt head hole 7 corresponding to the pedestal 9 and a female screw 8. Color 2
And a lock bolt 3 having a wrench hole 4 in the head, and a link pin device for a working machine.
【００１１】また、基端に膨出径部１ａが形成され先端
部直径方向にボルト挿通孔６を貫設した金属製円柱状の
ピン１と、軸部３ｂが前記ボルト挿通孔６に挿通され且
つ頭部３ａにレンチ穴４を設けた止めボルト３と、前記
止めボルト３の頭部３ａが貫通する径のボルト頭孔７と
その止めボルト３の雄ネジ５に螺合する雌ネジ８を対設
した金属製筒状のカラー２とから成る作業機用リンクピ
ン装置である。A cylindrical columnar pin 1 made of metal having a bulging diameter portion 1a formed at the base end and having a bolt insertion hole 6 extending in the diameter direction of the tip portion, and a shaft portion 3b are inserted into the bolt insertion hole 6. In addition, a set bolt 3 having a wrench hole 4 in the head portion 3a, a bolt head hole 7 having a diameter through which the head portion 3a of the set bolt 3 penetrates, and a female screw 8 screwed to the male screw 5 of the set bolt 3 are provided. It is a link pin device for a working machine, which is composed of a metal cylindrical collar 2 provided opposite to each other.
【００１２】また、基端に膨出径部１０ａが形成され先
端部円心方向にボルト穴１６を穿設した金属製円柱状の
ピン１０と、頭部１３ａにレンチ穴１４を設け且つ雄ネ
ジ１５が前記ボルト穴１６に設けた雌ネジ１８に螺着さ
れる止めボルト１３と、前記止めボルト１３の頭部１３
ａが貫通するボルト頭孔１７を設けた金属製筒状のカラ
ー１２とから成る作業機用リンクピン装置である。Further, a metal cylindrical pin 10 having a bulging diameter portion 10a formed at the base end and a bolt hole 16 formed in the distal end circular direction, and a wrench hole 14 provided at the head portion 13a and a male screw. 15 is a fixing bolt 13 screwed into a female screw 18 provided in the bolt hole 16, and a head 13 of the fixing bolt 13.
This is a link pin device for a working machine, which comprises a metal cylindrical collar 12 having a bolt head hole 17 through which a passes.
【００１３】また、基端に膨出径部１０ａが形成され先
端部円心方向にボルト穴１６を穿設し且つその開口部１
６ａに止めボルト１３の頭部１３ａが嵌合する台座１９
を形成した金属製円柱状のピン１０と、頭部１３ａにレ
ンチ穴１４を設け且つ雄ネジ１５が前記ボルト穴１６に
設けた雌ネジ１８に螺着される止めボルト１３と、前記
止めボルト１３の頭部１３ａが貫通するボルト頭孔１７
を設けた金属製筒状のカラー１２とから成る作業機用リ
ンクピン装置である。Further, a bulging diameter portion 10a is formed at the base end, a bolt hole 16 is bored in the distal end circular direction, and the opening 1 is formed.
Pedestal 19 in which head 13a of stop bolt 13 is fitted to 6a
A cylindrical pin 10 made of metal, a wrench hole 14 in a head 13a, and a male screw 15 that is screwed into a female screw 18 provided in the bolt hole 16; Head hole 17 through which the head 13a of the bolt penetrates
It is a link pin device for a working machine, which comprises a metal cylindrical collar 12 provided with.
【００１４】さらに、上記各構成において、装着される
前記止めボルト３、１３を、前記カラー２、１２の外周
面２ａ、１２ａより内部に陥没状態に固定される長さと
するものである。Further, in each of the above-mentioned configurations, the set bolts 3 and 13 to be mounted have a length that is fixed inward from the outer peripheral surfaces 2a and 12a of the collars 2 and 12, respectively.
【００１５】[0015]
【発明の実施の形態】本発明の作業機用リンクピン装置
についてその実施の形態を、図の実施例に基づいて以下
説明する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a link pin device for a working machine according to the present invention will be described below based on an embodiment shown in the drawings.
【００１６】本発明は、図１の（イ）及び（ロ）に示す
ように、金属製円柱状のピン１と、金属製筒状のカラー
２と、止めボルト３とから構成され、各種形態があり、
以下それらの形態を詳しく説明する。As shown in FIGS. 1 (a) and 1 (b), the present invention comprises a metal columnar pin 1, a metal tubular collar 2 and a stop bolt 3 in various forms. There is
These forms will be described in detail below.
【００１７】先ず一つの形態について説明する。前記ピ
ン１については、基端に膨出径部１ａが形成され、図３
の（ハ）に示すように、先端部直径方向にボルト挿通孔
６を貫設し且つそのボルト挿通孔６の一方側の開口部６
ａにボルト頭の台座９を形成してある。また、前記カラ
ー２は、図３の（ロ）に示すように、その周壁２ａに前
記台座９と符合するボルト頭孔７と雌ネジ８とをボルト
挿通孔６の両開口部６ａ、６ｂに対応させて貫設してあ
る。そして、止めボルト３は、図３の（イ）に示すよう
に、頭部にレンチ穴４を設け、軸部３ｂの先端部に前記
雌ネジ８に螺合する雄ネジ５を備えたソケットスクリュ
ウ型のものを使用する。そのレンチ穴４はレンチの形状
に合った形であり、六角レンチや四角レンチなど各種形
状がありそれに対応するものとする。First, one form will be described. As for the pin 1, a bulging diameter portion 1a is formed at the base end, and
(C), the bolt insertion hole 6 is provided in the diameter direction of the tip portion and the opening 6 on one side of the bolt insertion hole 6 is formed.
A pedestal 9 having a bolt head is formed on a. Further, as shown in FIG. 3B, the collar 2 has a bolt head hole 7 and a female screw 8 corresponding to the pedestal 9 on the peripheral wall 2a in both openings 6a, 6b of the bolt insertion hole 6. Correspondingly installed. As shown in FIG. 3A, the set bolt 3 is a socket screw having a wrench hole 4 in its head and a male screw 5 screwed into the female screw 8 at the tip of the shaft 3b. Use the type. The wrench hole 4 has a shape that fits the shape of the wrench, and various shapes such as a hexagonal wrench and a square wrench are available and correspond to them.
【００１８】使用する場合には、図２に示すように、各
種アタッチメントのリンク機構においてその関節部分の
枢支部に、ボルト挿通孔６のある末端部側を先にしてリ
ンクピンが差し込まれる。そしてその枢支部を貫通した
末端部に前記カラー２が嵌められ、さらにそのカラー２
のボルト頭孔７からピン１に形成したボルト挿通孔６を
貫通させて止めボルト３が差し込まれ、その止めボルト
３の雄ネジ５が前記カラー２の雌ネジ８に螺着される
（図４の（イ）、（ロ）に示す）。図１の（イ）に示す
ように、前記止めボルト３を六角レンチＬで締めると、
図４に示すように、前記ピン１が前記止めボルト３の頭
部３ａに押圧されて強固に固定される。そして、図２に
示すように、前記ピン１の膨出径部１ａと前記カラー２
の内側部分とが関節部分の枢支部を挟み付けた状態とな
って、ピン１が外れなくなる。In use, as shown in FIG. 2, in the link mechanism of various attachments, the link pin is inserted into the pivotal support portion of the joint portion, with the end portion side having the bolt insertion hole 6 first. Then, the collar 2 is fitted to the end portion penetrating the pivot portion, and further the collar 2
Of the bolt 2 is inserted through the bolt insertion hole 6 formed in the pin 1 from the bolt head hole 7 of the fixing bolt 3, and the male screw 5 of the fixing bolt 3 is screwed to the female screw 8 of the collar 2 (FIG. 4). (Shown in (a) and (b)). As shown in (a) of FIG. 1, when the set bolt 3 is tightened with a hexagon wrench L,
As shown in FIG. 4, the pin 1 is pressed against the head portion 3a of the stop bolt 3 to be firmly fixed. Then, as shown in FIG. 2, the bulging diameter portion 1 a of the pin 1 and the collar 2
The pin 1 is prevented from coming off with the inner part of the pin and the pivot part of the joint part being sandwiched.
【００１９】次に、これとは別の形態について説明す
る。この形態は、上記形態の構成のうち、前記ピン１の
ボルト挿通孔６の一方側の開口部６ａにボルト頭の台座
９を形成しないものである。使用に当たって、台座９が
なくとも大きな支障がでるものではない。Next, another mode other than this will be described. In this form, the pedestal 9 of the bolt head is not formed in the opening 6a on one side of the bolt insertion hole 6 of the pin 1 in the configuration of the above-described form. In use, even if the pedestal 9 is not present, it will not cause any serious trouble.
【００２０】さらに、それらとは別の形態について説明
する。この形態は、図５に示すように、前記ピン１０に
ついては、基端に膨出径部１０ａが形成され先端部円心
方向にボルト穴１６を穿設し且つその開口部１６ａに止
めボルト１３の頭部１３ａが嵌合する台座１９を形成し
てある。また、止めボルト１３は、頭部１３ａにレンチ
穴１４を設け且つ雄ネジ１５が前記ボルト穴１６に設け
た雌ネジ１８に螺着できるようにする。また、前記カラ
ー１２は、その周壁に前記止めボルト１３の頭部１３ａ
が貫通するボルト頭孔１７を設ける。Further, another form other than them will be described. In this embodiment, as shown in FIG. 5, with respect to the pin 10, a bulging diameter portion 10a is formed at the base end, a bolt hole 16 is bored in the direction of the center of the tip portion, and a fixing bolt 13 is provided at the opening portion 16a. A pedestal 19 to which the head portion 13a of the above is fitted is formed. Further, the stop bolt 13 has a wrench hole 14 in the head portion 13a, and a male screw 15 can be screwed into a female screw 18 provided in the bolt hole 16. Further, the collar 12 has a head 13a of the stop bolt 13 on its peripheral wall.
Is provided with a bolt head hole 17.
【００２１】また、それらとは別の形態について説明す
る。この形態は、上記形態の構成のうち、前記ピン１０
のボルト挿通孔１６の一方側の開口部１６ａに止めボル
ト１３の頭部１３ａが嵌合する台座１９を形成しないも
のである。この場合についても、使用に当たって、台座
１９がなくとも大きな支障がでるものではない。Another form different from them will be described. This form is the same as that of the above-mentioned form.
The pedestal 19 into which the head portion 13a of the stop bolt 13 is fitted is not formed in the opening 16a on one side of the bolt insertion hole 16. Even in this case, even if the pedestal 19 is not used, there is no great problem in use.
【００２２】この形態では図６の（イ）に示すように止
めボルトを１個とする場合、また図６の（ロ）に示すよ
う、止めボルトを３個とする場合など止めボルトを複数
個使用するものが可能である。In this embodiment, there are a plurality of stop bolts, such as one stop bolt as shown in FIG. 6 (a) and three stop bolts as shown in FIG. 6 (b). What you use is possible.
【００２３】さらに、上記各形態においても、装着され
る前記止めボルト３、１３を、前記カラー２、１２の外
周面２ａ、１２ａより内部に陥没状態に固定される長さ
とすることができる。即ち、図４の（ロ）に示すよう
に、止めボルト３、１３の頭部３ａ、１３ａと雄ネジ
５、１５の先端部がカラー２、１２の外周面２ａ、１２
ａの外に突出しないようにする。止めボルト３、１３は
カラー２,１２の外周面２ａ、１２ａから突出しないよ
うにすることはより好ましいが、図４の（イ）に示すよ
うに、少しの突出があっても殆んど支障はない。Further, also in each of the above-mentioned embodiments, the set bolts 3 and 13 to be mounted can have a length that is fixed inward from the outer peripheral surfaces 2a and 12a of the collars 2 and 12 in a depressed state. That is, as shown in FIG. 4B, the head portions 3a and 13a of the fixing bolts 3 and 13 and the tip portions of the male screws 5 and 15 are the outer peripheral surfaces 2a and 12 of the collars 2 and 12, respectively.
Do not project outside a. It is more preferable that the fixing bolts 3 and 13 do not project from the outer peripheral surfaces 2a and 12a of the collars 2 and 12, but as shown in FIG. There is no.
【００２４】[0024]
【発明の効果】本発明のリンクピンは以上のようであ
り、各種作業用アタッチメントの交換に際しては、レン
チ一つを用いて片手で取り外し作業と固定作業とを行っ
て、各種作業用アタッチメントを簡単に交換することが
できるようになった。そして、これまでのＣ型リング被
せ止め式にあった工具を滑らせて起こる怪我などはな
く、極めて安全な交換作業ができるようになった。The link pin of the present invention is as described above. When exchanging various work attachments, the work of detaching and fixing various work can be easily performed by using one wrench to remove and fix with one hand. Can now be exchanged. Moreover, there is no injury caused by sliding the tools that were used to cover the C-shaped ring so far, and it has become possible to perform extremely safe replacement work.
【００２５】また、使用しているに際に、リンクピン装
置の各部分が周囲のものに接触しても、止めボルト３、
１３が大きく突出することがないので、ピン１、１０が
容易に緩んだり抜けたりすることがなくなり、リンク機
構の機能を確実且つ安定的に確保でき、長期間安心して
作業に当たれる。さらに、図１に示すように、極めて簡
潔な構造なので安価に製造することができる利点もあ
る。In addition, even when each part of the link pin device comes into contact with the surroundings during use, the stop bolt 3,
Since the pin 13 does not largely project, the pins 1 and 10 are not easily loosened or pulled out, the function of the link mechanism can be reliably and stably ensured, and the work can be performed with peace of mind for a long time. Further, as shown in FIG. 1, since it has an extremely simple structure, it has an advantage that it can be manufactured at low cost.
【図１】本発明の（イ）が固定状態を示す斜視図、
（ロ）がカラーを分離した状態を示す斜視図。FIG. 1 is a perspective view showing a fixed state of (a) of the present invention,
The perspective view which shows the state which (b) separated the collar.
【図２】本発明の使用状態を示す斜視図。FIG. 2 is a perspective view showing a usage state of the present invention.
【図３】（イ）が止めボルトの差し込み前の、（ロ）が
分離したカラーの、（ロ）がピンの各輪切り縦断側面
図。FIG. 3 is a vertical cross-sectional side view of each of the collars, in which (a) is a collar in which (b) is separated and (b) is a pin, before the fastening bolt is inserted.
【図４】止めボルトを差し込み固定した状態を示す
（イ）が止めボルトがカラーの外周面から少し出た状態
の輪切り縦断側面図、（ロ）が止めボルトがカラーの中
に隠れた状態の輪切り縦断側面図。[Fig. 4] Fig. 4 shows a state in which a fixing bolt is inserted and fixed, (a) is a vertical cross-sectional side view of the wheel cut with the fixing bolt slightly protruding from the outer peripheral surface of the collar, and (b) is a state in which the fixing bolt is hidden in the collar. Side view of a vertical slice.
【図５】別の形態の（イ）が固定状態を示す斜視図、
（ロ）がカラーを分離した状態を示す斜視図。FIG. 5 is a perspective view showing another embodiment (a) in a fixed state,
The perspective view which shows the state which (b) separated the collar.
【図６】別の形態の（イ）が止めボルトが１個の場合、
（ロ）が止めボルトが３個の場合の各輪切り縦断側面
図。[FIG. 6] In the case of (a) of another embodiment, in which one set bolt is used,
(B) is a vertical sectional side view of each wheel when there are three fastening bolts.
【図７】従来のリンクピンの斜視図。FIG. 7 is a perspective view of a conventional link pin.
１ ピン １ａ ピンの膨出径部 １ｂ ピンの先端部側周面 ２ カラー ２ａ カラーの外周面 ３ 止めボルト ３ａ 止めボルトの頭部 ３ｂ 止めボルトの軸部 ４ レンチ穴 ５ 雄ネジ ６ ボルト挿通孔 ６ａ ボルト挿通孔の開口部 ６ｂ ボルト挿通孔の開口部 ７ ボルト頭孔 ８ 雌ネジ ９ 台座 １０ ピン １０ａ ピンの膨出径部 １０ｂ ピンの先端部側周面 １２ カラー １３ 止めボルト １３ａ 止めボルトの頭部 １４ レンチ穴 １５ 雄ネジ １６ ボルト穴 １６ａ ボルト穴の開口部 １７ ボルト頭孔 １８ 雌ネジ １９ 台座 Ｌ 六角レンチ 1 pin 1a Pin bulge diameter part 1b Pin tip side peripheral surface 2 colors 2a color outer peripheral surface 3 stop bolts 3a Set bolt head 3b Locking bolt shaft 4 wrench holes 5 male screw 6 bolt insertion hole 6a Bolt insertion hole opening 6b Bolt insertion hole opening 7 bolt head hole 8 female screw 9 pedestals 10 pin 10a pin bulging diameter part 10b Pin tip side peripheral surface 12 colors 13 stop bolt 13a Set bolt head 14 wrench hole 15 Male screw 16 bolt holes 16a Bolt hole opening 17 bolt head hole 18 female screw 19 pedestal L hexagon wrench
Claims (5)
部直径方向にボルト挿通孔（６）を貫設し且つそのボル
ト挿通孔（６）の一方側の開口部（６ａ）にボルト頭の
台座（９）を形成した金属製円柱状のピン（１）と、前
記台座（９）と符合するボルト頭孔（７）と雌ネジ
（８）とを対設した金属製筒状のカラー（２）と、頭部
にレンチ穴（４）を設けた止めボルト（３）とから成る
作業機用リンクピン装置。1. A bulging diameter portion (1a) is formed at a base end, and a bolt insertion hole (6) is penetrated in a diameter direction of a tip portion, and an opening portion (6a) on one side of the bolt insertion hole (6). A metal cylinder having a metal columnar pin (1) having a bolt head pedestal (9) formed therein, a bolt head hole (7) corresponding to the pedestal (9), and a female screw (8). A link pin device for a working machine, which comprises a collar (2) and a locking bolt (3) having a wrench hole (4) on its head.
部直径方向にボルト挿通孔（６）を貫設した金属製円柱
状のピン（１）と、軸部（３ｂ）が前記ボルト挿通孔
（６）に挿通され且つ頭部（３ａ）にレンチ穴（４）を
設けた止めボルト（３）と、前記止めボルト（３）の頭
部（３ａ）が貫通する径のボルト頭孔（７）とその止め
ボルト（３）の雄ネジ（５）に螺合する雌ネジ（８）を
対設した金属製筒状のカラー（２）とから成る作業機用
リンクピン装置。2. A metal columnar pin (1) having a bulging diameter portion (1a) formed at a base end and a bolt insertion hole (6) penetrating in a diameter direction of a tip portion, and a shaft portion (3b). A fixing bolt (3) which is inserted into the bolt insertion hole (6) and has a wrench hole (4) in the head portion (3a), and a bolt having a diameter through which the head portion (3a) of the fixing bolt (3) passes. A link pin device for a working machine comprising a head hole (7) and a metal cylindrical collar (2) provided with a female screw (8) which is screwed to the male screw (5) of the fixing bolt (3).
端部円心方向にボルト穴（１６）を穿設した金属製円柱
状のピン（１０）と、頭部（１３ａ）にレンチ穴（１
４）を設け且つ雄ネジ（１５）が前記ボルト穴（１６）
に設けた雌ネジ（１８）に螺着される止めボルト（１
３）と、前記止めボルト（１３）の頭部（１３ａ）が貫
通するボルト頭孔（１７）を設けた金属製筒状のカラー
（１２）とから成る作業機用リンクピン装置。3. A metal columnar pin (10) having a bulging diameter portion (10a) formed at its base end and having a bolt hole (16) bored in the distal end circular direction, and a head portion (13a). Wrench hole (1
4) and the male screw (15) has the bolt hole (16).
Set screw (1) screwed to the female screw (18) provided on the
3) and a link pin device for a working machine comprising a metal cylindrical collar (12) provided with a bolt head hole (17) through which the head (13a) of the stop bolt (13) passes.
端部円心方向にボルト穴（１６）を穿設し且つその開口
部（１６ａ）に止めボルト（１３）の頭部（１３ａ）が
嵌合する台座（１９）を形成した金属製円柱状のピン
（１０）と、頭部（１３ａ）にレンチ穴（１４）を設け
且つ雄ネジ（１５）が前記ボルト穴（１６）に設けた雌
ネジ（１８）に螺着される止めボルト（１３）と、前記
止めボルト（１３）の頭部（１３ａ）が貫通するボルト
頭孔（１７）を設けた金属製筒状のカラー（１２）とか
ら成る作業機用リンクピン装置。4. A bulging diameter portion (10a) is formed at the base end, a bolt hole (16) is bored in the distal end circular direction, and the head portion () of the stop bolt (13) is formed in the opening portion (16a). 13a) is formed with a pedestal (19) into which a pedestal (19) is formed, a head (13a) is provided with a wrench hole (14), and a male screw (15) is provided with the bolt hole (16). A metal tubular collar provided with a locking bolt (13) screwed to a female screw (18) provided on the above and a bolt head hole (17) through which the head (13a) of the locking bolt (13) passes. (12) A link pin device for a working machine, which comprises
が、カラー（２）、（１２）の外周面（２ａ）、（１２
ａ）より内部に陥没状態に固定される長さである請求項
１乃至４のうちいずれか一項に記載の作業機用リンクピ
ン装置。5. Set bolts (3), (13) to be mounted
The outer peripheral surfaces (2a), (12) of the collars (2), (12)
The link pin device for a working machine according to any one of claims 1 to 4, wherein the length is fixed inward from a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001225244A JP2003042139A (en) | 2001-07-26 | 2001-07-26 | Link pin unit for work machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001225244A JP2003042139A (en) | 2001-07-26 | 2001-07-26 | Link pin unit for work machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003042139A true JP2003042139A (en) | 2003-02-13 |
Family
ID=19058264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001225244A Pending JP2003042139A (en) | 2001-07-26 | 2001-07-26 | Link pin unit for work machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003042139A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016147920A1 (en) * | 2015-03-17 | 2016-09-22 | ヤンマー株式会社 | Support shaft member mounting/dismounting structure for working machine |
-
2001
- 2001-07-26 JP JP2001225244A patent/JP2003042139A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016147920A1 (en) * | 2015-03-17 | 2016-09-22 | ヤンマー株式会社 | Support shaft member mounting/dismounting structure for working machine |
| JP2016172977A (en) * | 2015-03-17 | 2016-09-29 | ヤンマー株式会社 | Attachment/detachment structure for support shaft member of work machine |
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