JP2571062Y2 - Outrigger automatic locking device - Google Patents
Outrigger automatic locking deviceInfo
- Publication number
- JP2571062Y2 JP2571062Y2 JP1555392U JP1555392U JP2571062Y2 JP 2571062 Y2 JP2571062 Y2 JP 2571062Y2 JP 1555392 U JP1555392 U JP 1555392U JP 1555392 U JP1555392 U JP 1555392U JP 2571062 Y2 JP2571062 Y2 JP 2571062Y2
- Authority
- JP
- Japan
- Prior art keywords
- operating rod
- inner cylinder
- outer cylinder
- receiving plate
- pin
- 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
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は自走式クレーンのような
クレーン車や高所作業車等に用いるアウトリガ、特に車
体に横架した外筒に内筒を一定範囲の伸縮自在に嵌挿し
てなる伸縮ビームの内筒先端に垂直のジヤツキを固着
し、少くも該伸縮ビームの最伸長位置と最収縮位置とに
おいて、外筒の先端部に設けた１個のピン孔に夫々合致
するピン孔を内筒に穿設して、該内筒側ピン孔に常時嵌
り込み付勢されるロツクピンを外筒側ピン孔に装着した
アウトリガのロツク装置に関する。The present invention relates to an outrigger used for a mobile crane such as a self-propelled crane or a work platform, and in particular, an inner cylinder is inserted into an outer cylinder horizontally mounted on a vehicle body so as to extend and contract within a certain range. A vertical jack is fixed to the tip of the inner cylinder of the telescopic beam, and at least at the most extended position and the most contracted position of the telescopic beam, the pin holes respectively correspond to one pin hole provided at the distal end of the outer cylinder. The present invention relates to an outrigger locking device in which a lock pin which is bored in an inner cylinder side and is always fitted and urged into the inner cylinder side pin hole is mounted in the outer cylinder side pin hole.
【０００２】[0002]
【従来の技術】従来図９及び図１０に示すように、ロツ
クピンＡ及びこれを常時押下げ付勢する圧縮ばねＢを内
蔵した筒Ｃを外筒Ｄの先端部上に植設して、該筒Ｃの上
端に凹設した一対のＶ溝Ｅ，Ｅ′の溝Ｅに係合する操作
杆ＦをロツクピンＡの上端部に貫通固着し、内筒Ｇの先
端のジヤツキＪを外筒Ｄの先端に当接した伸縮ビームの
最収縮位置において、操作杆Ｆを図示のようにＶ溝Ｅ側
の下端に係合させた時は、ロツクピンＡが内筒側のピン
孔Ｋに嵌り込んで、クレーン車等の走行中に不意に伸縮
ビームが伸長することによる事故発生の恐れを無くし、
又操作杆ＦをＶ溝頂部に設けた一対の浅溝Ｍ，Ｍ′の
Ｍ′側に係合させた時は、ロツクピンＡが内筒側のピン
孔Ｋより抜け出て伸縮ビームの伸長を可能とし、且つ伸
縮ビームの伸長状態において操作杆Ｆを浅溝Ｍ側に係合
させた時は、該操作杆が外筒先端より突出して、該伸縮
ビームの最収縮時にジヤツキＪが操作杆ＦをＶ溝Ｅ内に
押戻すことにより、圧縮ばねＢの弾力によつてロツクピ
ンＡを自動的にピン孔Ｋに嵌り込ませる考案は、実公平
２−１５７３２号公報に示されている。2. Description of the Related Art Conventionally, as shown in FIGS. 9 and 10, a cylinder C containing a locking pin A and a compression spring B for constantly pressing and pushing the pin is implanted on the distal end of an outer cylinder D. An operating rod F which engages with a pair of V-grooves E and E 'formed in the upper end of the cylinder C is fixedly penetrated to the upper end of the lock pin A, and a jack J at the end of the inner cylinder G is fixed to the outer cylinder D. When the operating rod F is engaged with the lower end on the V-groove E side as shown in the most contracted position of the telescopic beam abutting on the tip, the locking pin A fits into the pin hole K on the inner cylinder side, Eliminates the possibility of accidents caused by sudden expansion of the telescopic beam during traveling of a crane truck, etc.
When the operating rod F is engaged with the M 'side of the pair of shallow grooves M and M' provided at the top of the V-groove, the locking pin A comes out of the pin hole K on the inner cylinder side so that the telescopic beam can be extended. And when the operating rod F is engaged with the shallow groove M side in the extended state of the telescopic beam, the operating rod projects from the distal end of the outer cylinder, and when the telescopic beam is contracted most, the jack J moves the operating rod F. A device in which the locking pin A is automatically fitted into the pin hole K by the elasticity of the compression spring B by pushing back into the V-groove E is disclosed in Japanese Utility Model Publication No. 2-15732.
【０００３】[0003]
【考案が解決しようとする課題】この従来技術では、伸
縮ビームを図示の最収縮位置から伸長させる際は、ロツ
クピンＡをピン孔Ｋより抜取るため、操作杆を浅溝Ｍ′
に係合させねばならないのに対し、伸縮ビームを図９に
鎖線で示した伸長状態から最収縮させる際は、操作杆を
浅溝Ｍに係合させて、該操作杆をジヤツキＪでＶ溝Ｅ内
に押戻し得るようにしなければならず、伸縮ビームの伸
縮如何により操作杆Ｆを係合させる浅溝が異なるため、
伸縮ビームを最収縮させる際に誤つて操作杆を浅溝Ｍ′
に係合させる恐れを生じ、この場合は伸縮ビームを最収
縮しても、内筒ＧがロツクピンＡで自動ロツクされず、
甚だ危険である。In the prior art, when the telescopic beam is extended from the most contracted position shown in the drawing, the operating pin is pulled out of the pin hole K so that the operating rod is moved to the shallow groove M '.
When the telescopic beam is most contracted from the extended state shown by the chain line in FIG. 9, the operating rod is engaged with the shallow groove M, and the operating rod is E, the shallow groove for engaging the operating rod F differs depending on whether the telescopic beam expands or contracts.
When the telescopic beam is contracted to the maximum, the operating rod is mistakenly inserted into the shallow groove M '.
In this case, even if the telescopic beam is contracted most, the inner cylinder G is not automatically locked by the locking pin A.
It is extremely dangerous.
【０００４】これを避けるため、ロツクピンを内筒側の
ピン孔から抜取る場合は、操作杆Ｆを常に浅溝Ｍに係合
させるように構成すると、伸縮ビームを図示の最収縮位
置から伸長させる際は、片手で操作杆を浅溝Ｍへの係合
方向に回動付勢してロツクピンＡをピン孔Ｋより抜取る
と同時に、他方の片手で重いジヤツキ付き内筒Ｇを外筒
Ｄから引出さねばならず、伸縮ビームの伸長操作が厄介
になり、実際上使用し難い。In order to avoid this, when the lock pin is removed from the pin hole on the inner cylinder side, if the operating rod F is always engaged with the shallow groove M, the telescopic beam is extended from the most contracted position shown in the figure. At this time, the operating rod is rotationally urged in the direction of engagement with the shallow groove M with one hand to remove the locking pin A from the pin hole K, and at the same time, the heavy inner jacket G with the other hand is removed from the outer cylinder D with the other hand. It has to be pulled out, and the operation of extending the telescopic beam becomes troublesome, and it is practically difficult to use.
【０００５】[0005]
【課題を解決するための手段】本考案は前記問題に対処
するもので、ロツクピンの外端に、前記内，外筒の全ピ
ン孔の軸線を含む平面内で回動する操作杆を枢着して、
該ロツクピンを内筒側のピン孔からの離脱状態に保持す
るように、操作杆の中間に設けた係合部が当接係合可能
な受板を、内筒と外筒の先端に夫々伸縮ビームと略平行
配置で片持ち支持させ、該伸縮ビームの最収縮位置にお
いて、内筒側の受板上に操作杆の係合部を係脱し得るよ
うに、内筒側の受板を外筒側受板の外側に並列すると共
に、伸長状態の伸縮ビームを最収縮する際には、内筒側
受板の先端で外筒側受板上に係合している操作杆の係合
部或いは中間部を押し脱すように構成したことを特徴と
する。SUMMARY OF THE INVENTION The present invention addresses the above-mentioned problems. An operating rod which pivots in a plane including the axis of all the pin holes of the inner and outer cylinders is pivotally mounted on the outer end of the locking pin. do it,
In order to hold the lock pin in a detached state from the pin hole on the inner cylinder side, a receiving plate provided with an engaging portion provided in the middle of the operation rod and capable of abuttingly engaging is extended and contracted at the distal ends of the inner cylinder and the outer cylinder, respectively. The cantilever is supported in a substantially parallel arrangement with the beam, and the inner cylinder-side receiving plate is attached to the outer cylinder so that the engaging portion of the operating rod can be disengaged from the inner cylinder-side receiving plate at the most contracted position of the telescopic beam. In parallel with the outer side of the side receiving plate, when the telescopic beam in the extended state is most contracted, the engaging portion of the operating rod engaged on the outer cylindrical side receiving plate at the tip of the inner cylindrical side receiving plate or The intermediate portion is configured to be pushed out.
【０００６】本考案の装置は、Ｕ字状の操作杆のロツク
ピン側端部を、該Ｕ字状操作杆の回動面内においてＶ形
に屈曲して、該Ｖ形屈曲部の内、ロツクピンへの連結辺
を除いた部分を梁状の係合部に構成してもよい。According to the device of the present invention, the locking pin side end of the U-shaped operating rod is bent into a V-shape in the rotation plane of the U-shaped operating rod, and the locking pin is formed in the V-shaped bent portion. The portion excluding the connection side to the may be configured as a beam-shaped engaging portion.
【０００７】又内，外筒の全ピン孔の軸線を含む平面に
Ｕ字状の操作杆の回動面を合致させる手段として、外筒
と内筒の先端に夫々片持ち支持させた受板の幅を、中間
に梁状の係合部を備えるＵ字状操作杆内に嵌り込み得る
一定大きさに設定すると共に、外筒の先端に片持ち支持
させた受板の外筒基端側端末とこれに対応する外筒表面
との間に、ロツクピンを覆うように該受板と同じ幅を持
つガイド板を連設して、ロツクピンの軸線とガイド板の
表面との間における受板と平行な方向の距離を、該ロツ
クピンに対する前記梁状係合部の内縁の回動半径より小
さく設定してもよい。As means for matching the rotation surface of the U-shaped operating rod to a plane including the axes of all the pin holes of the inner and outer cylinders, a receiving plate supported at the ends of the outer cylinder and the inner cylinder by a cantilever, respectively. Is set to a constant size that can be fitted into a U-shaped operating rod having a beam-shaped engaging portion in the middle, and the outer cylinder base end side of a receiving plate that is cantilevered at the distal end of the outer cylinder. A guide plate having the same width as the receiving plate is continuously provided between the terminal and the corresponding outer cylinder surface so as to cover the locking pin, and a receiving plate between the axis of the locking pin and the surface of the guide plate is provided. The distance in the parallel direction may be set smaller than the turning radius of the inner edge of the beam-shaped engaging portion with respect to the locking pin.
【０００８】[0008]
【実施例】図１及び図２は伸縮ビームの最伸長位置にお
ける本考案一実施例の縦断正面図及び平面図を示し、ア
ウトリガは車体１上に横架した外筒２に内筒３を摺動自
在に嵌挿した伸縮ビームと、該内筒３の先端に固着した
油圧作動の垂直のジヤツキ４とを含み、内筒頂面の案内
用ガイドレール５を備える外筒２の両側内壁に夫々取付
けたストツパ６と、内筒３の基端両側に夫々取付けたス
トツパ７とは伸縮ビームの最伸長位置において図示のよ
うに当接し、外筒２の先端部の頂板とその内側の補強板
２ａとの間に垂直に取付けたロツクピン装着筒１３の下
部に形成されるピン孔９（図３参照）が、内筒頂板に設
けたピン孔１０に合致する。1 and 2 show a longitudinal sectional front view and a plan view of an embodiment of the present invention at the most extended position of a telescopic beam, and an outrigger slides an inner cylinder 3 on an outer cylinder 2 laid horizontally on a vehicle body 1. FIG. It includes a telescopic beam movably inserted and a hydraulically operated vertical jack 4 fixed to the tip of the inner cylinder 3, and is provided on each of inner walls on both sides of the outer cylinder 2 having a guide rail 5 for guiding the inner cylinder top surface. The attached stopper 6 and the stoppers 7 attached to both sides of the base end of the inner cylinder 3 abut at the most extended position of the telescopic beam, as shown in the figure, and the top plate at the distal end of the outer cylinder 2 and the reinforcing plate 2a inside it. The pin hole 9 (see FIG. 3) formed in the lower part of the lock pin mounting cylinder 13 which is vertically mounted between the pin and the pin hole matches the pin hole 10 formed in the inner cylinder top plate.
【０００９】又外筒２の底面前端に突出固着したストツ
パ１２には、図３或いは図４に示す伸縮ビームの最収縮
位置においてジヤツキ４が当接して、内筒３の頂板に設
けたピン孔１１が前記ロツクピン装着筒側のピン孔９に
合致する。図１の１４は内筒のピン孔１０，１１の中間
に設けた伸縮ビームの中間伸長位置拘束用のピン孔、又
２４はジヤツキ４の両側に夫々取付けた内筒３の引出し
或いは押込み用の取手である。A stopper 4 protrudes and is fixed to the front end of the bottom surface of the outer cylinder 2 at the most contracted position of the telescopic beam shown in FIG. 11 corresponds to the pin hole 9 on the lock pin mounting cylinder side. In FIG. 1, reference numeral 14 denotes a pin hole provided between the pin holes 10 and 11 of the inner cylinder for restraining the intermediate extension position of the telescopic beam, and reference numeral 24 denotes a pull-out or push-in of the inner cylinder 3 attached to both sides of the jack 4 respectively. Toride.
【００１０】ロツクピン装着筒１３内に圧縮ばね１５で
常時押下げ付勢させて嵌合したロツクピン８は、その上
部が正方形状又は矩形状断面を持つロツド部分８ａに形
成され、該ロツド部分８ａはロツクピン装着筒１３の上
端閉塞部分を軸方向の摺動のみ自在に貫通して、該ロツ
ド部分８ａの外端にはＵ字状操作杆１６の開口端が軸１
７で枢着される。このため該Ｕ字状操作杆１６は内，外
筒の全ピン孔９，１０，１１，１４の軸線を含む平面、
即ち図示の場合は伸縮ビームの伸縮軸線を含む垂直平面
内で回動する。The locking pin 8 fitted into the locking pin mounting cylinder 13 by being constantly pressed down and urged by the compression spring 15 is formed in a locking portion 8a having a square or rectangular cross section at the top, and the locking portion 8a is The upper end closed portion of the lock pin mounting cylinder 13 is slidably penetrated only in the axial direction, and the open end of the U-shaped operating rod 16 is attached to the outer end of the rod portion 8a.
It is pivoted at 7. For this reason, the U-shaped operating rod 16 has a plane including the axes of all the pin holes 9, 10, 11, and 14 of the inner and outer cylinders.
That is, in the case shown in the drawing, the beam rotates in a vertical plane including the telescopic axis of the telescopic beam.
【００１１】尚内，外筒の全ピン孔の軸線を含む平面に
Ｕ字状の操作杆１６の回動面を合致させる手段は、上述
の構成に限定されるものではなく、該Ｕ字状操作杆のロ
ツクピン側端部を摺接挟持する平板状ガイドを外筒２上
に植設するなど、任意の構成を採用し得る。The means for matching the turning surface of the U-shaped operating rod 16 to the plane including the axes of all the pin holes of the inner and outer cylinders is not limited to the above-mentioned structure, but is not limited to the above-mentioned structure. An arbitrary configuration can be adopted, such as planting a flat plate guide on the outer cylinder 2 to slidably hold the lock pin side end of the operating rod.
【００１２】Ｕ字状操作杆１６のロツクピン側端部は、
該操作杆の回動面内においてＶ形に屈曲して、該Ｖ形屈
曲部の内、ロツクピンへの連結辺を除いた部分によつ
て、Ｕ字状操作杆の中間に梁状の係合部１８を形成さ
せ、ロツクピン８を圧縮ばね１５による押下力に抗して
内筒側ピン孔１０，１１，１４の何れかからの離脱状態
に保持するように、係合部１８が当接係合する矩形状の
受板１９，２０を、外筒２と内筒３の先端に夫々伸縮ビ
ームと平行配置で片持ち支持させる。The locking pin side end of the U-shaped operating rod 16 is
The operating rod is bent into a V-shape in the rotation plane, and a beam-shaped engagement is formed between the U-shaped operating rod by a portion of the V-shaped bent portion excluding a side connected to the locking pin. An engaging portion 18 is formed so that the locking pin 8 is held in a state of being disengaged from any of the inner cylinder side pin holes 10, 11, 14 against the pressing force of the compression spring 15. The rectangular receiving plates 19 and 20 to be combined are cantilevered at the tips of the outer cylinder 2 and the inner cylinder 3 in parallel with the telescopic beams.
【００１３】外筒側の矩形状受板１９は外筒２の先端頂
板上に植設した垂直の平板２１の上部を該外筒の基端側
に水平に折曲げてなり、又内筒側の矩形状受板２０はジ
ヤツキ４の外壁に突出固着した取付金具２２に水平に取
付けられ、該受板１９，２０の幅は任意に設定し得る。
又図３或いは図４に示す伸縮ビームの最収縮位置におい
ては、内筒側の受板２０に操作杆１６の係合部１８を係
脱し得るように、内筒側の受板２０を外筒側受板１９の
外側に並列させている。従つて伸長状態の伸縮ブームを
最収縮する際には、内筒側受板２０の先端で外筒側受板
１９上に係合している係合部１８或いは操作杆の中間部
を押し脱すことになる。尚２３は外筒２上に植設した操
作杆１６の支え板を示す。The rectangular receiving plate 19 on the outer cylinder side is formed by bending the upper part of a vertical flat plate 21 planted on the top plate at the distal end of the outer cylinder 2 horizontally to the base end side of the outer cylinder. The rectangular receiving plate 20 is horizontally mounted on a mounting bracket 22 protruding and fixed to the outer wall of the jack 4, and the width of the receiving plates 19 and 20 can be set arbitrarily.
In the retracted position of the telescopic beam shown in FIG. 3 or FIG. 4, the inner cylinder-side receiving plate 20 is connected to the outer cylinder so that the engaging portion 18 of the operating rod 16 can be disengaged from the inner cylinder-side receiving plate 20. It is juxtaposed outside the side receiving plate 19. Therefore, when the telescopic boom in the extended state is contracted most, the engaging portion 18 engaged with the outer cylinder side receiving plate 19 at the tip of the inner cylinder side receiving plate 20 or the intermediate portion of the operating rod is pushed out. Will be. Reference numeral 23 denotes a support plate for the operating rod 16 implanted on the outer cylinder 2.
【００１４】以上一実施例について説明したが、操作杆
のロツクピン側端部を、該操作杆の回動面内においてＶ
形に屈曲して、該Ｖ形屈曲部の一部を係合部に構成する
代りに、Ｕ字状の操作杆内に直接梁状の係合部を設ける
こともできる。図７及び図８はこの場合の実施例であつ
て、同図中、図１〜図６と同一符号を付した部材は相対
応する部材である。Although the embodiment has been described above, the lock pin side end of the operating rod is connected to the V in the rotation plane of the operating rod.
Instead of bending into a shape and forming a part of the V-shaped bent portion as the engaging portion, a beam-shaped engaging portion may be provided directly in the U-shaped operating rod. FIGS. 7 and 8 show an embodiment in this case, in which the members denoted by the same reference numerals as those in FIGS. 1 to 6 are the corresponding members.
【００１５】図７は伸縮ビームを最収縮した前実施例の
図４に対応する図面であつて、Ｕ字状操作杆１６は丸棒
よりなるＵ字状部分１６ａの脚端に夫々平板部分１６ｂ
を溶着して、該溶着部分間に梁状の係合部１８を溶着し
てなり、ロツクピン８のロツド部分８ａの外端には軸１
７でＵ字状操作杆１６の開口端を枢着して、該ロツクピ
ンを内筒側のピン孔１１などからの離脱状態に保持する
ように、梁状係合部１８が当接係合可能な受板１９，２
０を、外筒２と内筒３の先端に夫々伸縮ビームと平行配
置で片持ち支持させ、図７に示す伸縮ビームの最収縮位
置において、内筒側の受板２０上に該梁状係合部１８を
係脱し得るように受板２０を受板１９の外側に並列して
いることは前実施例と同様であるが、受板１９，２０の
長さは前実施例の場合より若干長くしている。FIG. 7 is a drawing corresponding to FIG. 4 of the previous embodiment in which the telescopic beam is contracted most, and the U-shaped operating rod 16 has flat plate portions 16b at the leg ends of a U-shaped portion 16a made of a round bar.
And a beam-shaped engaging portion 18 is welded between the welded portions, and a shaft 1 is attached to the outer end of the rod portion 8a of the lock pin 8.
At 7, the open end of the U-shaped operating rod 16 is pivotally connected, and the beam-shaped engaging portion 18 can be brought into abutment engagement so as to keep the locking pin detached from the pin hole 11 on the inner cylinder side. Receiving plate 19,2
0 is cantilevered at the distal ends of the outer cylinder 2 and the inner cylinder 3 in parallel with the telescopic beam, respectively, and at the most contracted position of the telescopic beam shown in FIG. The receiving plate 20 is arranged in parallel with the outside of the receiving plate 19 so that the joining portion 18 can be disengaged, as in the previous embodiment, but the length of the receiving plates 19 and 20 is slightly smaller than in the previous embodiment. It is long.
【００１６】外筒２と内筒３の先端に夫々片持ち支持さ
せた受板１９，２０の幅はＵ字状操作杆１６の平板部分
１６ｂ，１６ｂの間に嵌り込み得る一定大きさを持ち、
外筒先端に片持ち支持させた受板１９の外筒基端側端末
とこれに対応する外筒表面との間に、ロツクピン８を覆
うように該受板１９と同じ幅を持つガイド板２５を連設
して、該ロツクピンの軸線とガイド板２５の表面との間
における受板１９と平行な方向の距離を、該ロツクピン
に対する梁状係合部１８の内縁の回動半径より小さく設
定している。The width of the receiving plates 19, 20 supported at the ends of the outer cylinder 2 and the inner cylinder 3, respectively, is cantilevered so as to fit between the flat plate portions 16b, 16b of the U-shaped operating rod 16. ,
A guide plate 25 having the same width as the receiving plate 19 is provided between the base end of the receiving plate 19 cantilevered at the distal end of the outer cylinder and the corresponding outer cylinder surface so as to cover the locking pin 8. The distance between the axis of the locking pin and the surface of the guide plate 25 in the direction parallel to the receiving plate 19 is set smaller than the turning radius of the inner edge of the beam-shaped engaging portion 18 with respect to the locking pin. ing.
【００１７】このためガイド板２５は受板１９と協同し
てＵ字状操作杆１６の回動面を、内外筒の全ピン孔の軸
線を含む平面に合致させるのみならず、外筒側の受板１
９上に当接係合している梁状係合部１８が、該受板の外
筒基端側端末を脱れる所まで押出されて、ロツクピン８
が圧縮ばね１５の弾力で押下げられる際に、該梁状係合
部１８がガイド板２５と干渉しない。尚ガイド板２５を
図７のように受板１９の外筒基端側端末より外筒の基端
側に向つて下傾させれば、Ｕ字状操作杆１６を鎖線示の
位置（イ）から実線示の位置に引上げながら回動する操
作が容易となる。For this reason, the guide plate 25 cooperates with the receiving plate 19 not only to make the rotation surface of the U-shaped operating rod 16 coincide with the plane including the axis of all the pin holes of the inner and outer cylinders, but also to make the outer cylinder side Receiving plate 1
9 is pushed out to the point where the beam-like engaging portion 18 which is in contact with and comes off from the base end side of the outer cylinder of the receiving plate is pressed.
Is pressed down by the elastic force of the compression spring 15, the beam-shaped engaging portion 18 does not interfere with the guide plate 25. If the guide plate 25 is tilted downward from the terminal end of the outer cylinder of the receiving plate 19 toward the base end of the outer cylinder as shown in FIG. 7, the U-shaped operating rod 16 is moved to the position indicated by the chain line (a). The operation of rotating while pulling up from the position to the position shown by the solid line becomes easy.
【００１８】[0018]
【作用】本考案の構成によれば、伸縮ビームの最収縮位
置において操作杆１６が図３或いは図７の鎖線示の位置
（イ）にある時は、圧縮ばね１５によつてロツクピン８
が内筒側ピン孔１１への係合状態に保持されるため、ク
レーン車等の走行中に伸縮ビームが不時に伸長する恐れ
はない。この状態から操作杆１６を図において反時計方
向に回動しながら引上げることにより、圧縮ばね１５を
圧縮しながら図４或いは図７の実線示のように、該操作
杆の係合部１８を内筒３側の受板２０上に当接係合させ
ると、ロツクピン８は内筒側ピン孔１１からの離脱状態
に保持される。According to the structure of the present invention, when the operating rod 16 is at the position (a) shown by a chain line in FIG. 3 or FIG.
Is held in an engaged state with the inner cylinder side pin hole 11, so that there is no possibility that the telescopic beam is extended unintentionally during traveling of the crane truck or the like. From this state, by pulling up the operating rod 16 while rotating it counterclockwise in the drawing, the compression spring 15 is compressed, and the engaging portion 18 of the operating rod is moved as shown by the solid line in FIG. 4 or FIG. When the locking pin 8 is brought into contact with the receiving plate 20 on the inner cylinder 3 side, the locking pin 8 is held in a state of being detached from the inner cylinder side pin hole 11.
【００１９】そこで例えば図５に示すように内筒３を外
筒２より引出して内筒側の受板２０を操作杆１６の係合
部１８より離脱させれば、圧縮ばね１５は若干伸長する
ものの、該係合部１８が外筒側の受板１９に当接係合し
て、ロツクピン８をやはり内筒側ピン孔１１からの離脱
状態に保持するから、伸縮ビームを最伸長位置或いは中
間伸長位置に自由に伸長することができ、従つて該位置
において操作杆１６を、その係合部１８が外筒側の受板
１９より脱れる時計方向に回動することにより、ロツク
ピン８を対応する内筒側ピン孔１０或いは１４に係合さ
せて、伸縮ビームをその伸長位置にロツクすることがで
きる。Therefore, as shown in FIG. 5, for example, if the inner cylinder 3 is pulled out from the outer cylinder 2 and the receiving plate 20 on the inner cylinder side is disengaged from the engaging portion 18 of the operating rod 16, the compression spring 15 is slightly extended. However, since the engaging portion 18 comes into contact with and engages with the receiving plate 19 on the outer cylinder side to keep the locking pin 8 in a state of being detached from the inner cylinder side pin hole 11, the telescopic beam is moved to the most extended position or intermediate position. The operating rod 16 can be freely extended to the extended position, so that the operating rod 16 is rotated clockwise at which the engaging portion 18 is disengaged from the receiving plate 19 on the outer cylinder side. The telescopic beam can be locked to its extended position by engaging with the inner cylinder side pin hole 10 or 14.
【００２０】又伸長位置の伸縮ビームを最収縮して走行
する場合は、操作杆の係合部１８を図５と同様に外筒側
の受板１９に係合させることによりロツクピン８を内筒
側のピン孔より抜取つた後、内筒３を外筒２内に押込め
ば、図６に示すように内筒側の受板２０の先端が操作杆
の中間部或いは係合部１８を押圧して、外筒側の受板１
９に対する該係合部の係合を解くから、ロツクピン８は
圧縮ばね１５の弾力によつて内筒側のピン孔１１に自動
的に嵌り込み、伸縮ビームを最収縮位置にロツクする。When the telescopic beam in the extended position travels with the telescopic beam contracted most, the locking pin 8 is engaged with the receiving plate 19 on the outer cylinder side in the same manner as in FIG. When the inner cylinder 3 is pushed into the outer cylinder 2 after being pulled out from the pin hole on the side, the tip of the receiving plate 20 on the inner cylinder side presses the intermediate portion or the engaging portion 18 of the operating rod as shown in FIG. And the outer cylinder side receiving plate 1
The lock pin 8 is automatically engaged with the pin hole 11 on the inner cylinder side by the resilience of the compression spring 15 so as to lock the telescopic beam to the most contracted position.
【００２１】[0021]
【考案の効果】本考案によれば次のような効果を奏す
る。According to the present invention, the following effects can be obtained.
【００２２】 請求項１の構成によれば、外筒への内
筒のロツク状態における操作杆の姿勢と、非ロツク状態
における操作杆の姿勢とが夫々常に一定して、しかも該
操作杆の両姿勢を明確に見分けられるので誤操作の恐れ
がなく、伸長した伸縮ビームを最収縮する際における内
筒の自動ロツクを常に確実に行うことができ、安全であ
る。According to the configuration of the first aspect, the posture of the operating rod in the locked state of the inner cylinder with respect to the outer cylinder and the posture of the operating rod in the non-locked state are always constant. Since the posture can be clearly distinguished, there is no risk of erroneous operation, and the automatic locking of the inner cylinder at the time of the maximum contraction of the extended telescopic beam can be always performed reliably, which is safe.
【００２３】 請求項２の構成によれば、Ｕ字状操作
杆のロツクピン側端部を、該操作杆の回動面内において
Ｖ形に屈曲して、こゝに梁状の係合部を設けているた
め、アウトリガ各部の組付誤差や受板幅の差，或いは
内，外筒間の摺動部の偏摩耗等によつて外筒側の受板と
内筒側の受板との間に相対的な横方向の変位を生じて
も、該Ｕ字状操作杆を引張りながら回動させて、その梁
状係合部を受板に係合させる操作が該受板間の相対変位
によつて邪魔される恐れがない。According to the configuration of the second aspect, the rock pin side end of the U-shaped operating rod is bent into a V shape in the rotation plane of the operating rod, and the beam-shaped engaging portion is formed here. Because of this, the outer cylinder-side receiving plate and the inner cylinder-side receiving plate may be displaced due to an assembling error of each part of the outrigger, a difference in the receiving plate width, or uneven wear of the sliding portion between the inner and outer cylinders. Even if a relative lateral displacement occurs between them, the operation of pulling and rotating the U-shaped operating rod to engage the beam-shaped engaging portion with the receiving plate is a relative displacement between the receiving plates. There is no fear of being disturbed by the.
【００２４】 請求項３の構成によれば、Ｕ字状操作
杆の回動面を規制するガイド板が、外筒側受板やその片
持ち支持部分と共同して、ロツクピンのロツド部分を囲
む保護枠としても機能するから、該ロツド部分が異物の
衝突により曲がる恐れがないのみならず、Ｕ字状操作杆
の梁状係合部を受板上に係合させる際には、該ガイド板
の表面が梁状係合部の内縁の案内として機能するから、
Ｕ字状操作杆の操作が容易となる。According to the configuration of the third aspect, the guide plate that regulates the rotation surface of the U-shaped operation rod surrounds the rod portion of the lock pin in cooperation with the outer cylinder side receiving plate and the cantilever support portion thereof. Since the rod portion also functions as a protection frame, not only does the rod portion not bend due to collision of foreign matter, but also when the beam-shaped engaging portion of the U-shaped operating rod is engaged on the receiving plate, the guide plate is used. Since the surface functions as a guide for the inner edge of the beam-shaped engaging portion,
The operation of the U-shaped operating rod is facilitated.
【図１】伸縮ビームの最伸長位置における本考案一実施
例の縦断正面図である。FIG. 1 is a longitudinal sectional front view of an embodiment of the present invention at the most extended position of a telescopic beam.
【図２】図１の要部の平面図である。FIG. 2 is a plan view of a main part of FIG.
【図３】伸縮ビームの最収縮位置における図１の要部の
詳細図である。FIG. 3 is a detailed view of a main part of FIG. 1 at the most contracted position of the telescopic beam.
【図４】図３における内筒のロツク解放時の詳細図であ
る。FIG. 4 is a detailed view of the inner cylinder in FIG. 3 when the lock is released.
【図５】伸縮ビームを最収縮位置から伸長し始めた時の
要部の詳細図である。FIG. 5 is a detailed view of a main part when the telescopic beam starts to extend from the most contracted position.
【図６】伸縮ビームを伸長状態から最収縮する際におけ
る要部の詳細図である。FIG. 6 is a detailed view of a main part when the telescopic beam is most contracted from the extended state.
【図７】図４に対応する本考案の他の実施例の要部詳細
図である。FIG. 7 is a detailed view of a main part of another embodiment of the present invention corresponding to FIG. 4;
【図８】図７のＹ−Ｙ断面図である。FIG. 8 is a sectional view taken along the line YY of FIG. 7;
【図９】従来形のアウトリガの平面図である。FIG. 9 is a plan view of a conventional outrigger.
【図１０】図９のＸ−Ｘ断面図である。FIG. 10 is a sectional view taken along line XX of FIG. 9;
１ 車体 ２ 外筒 ３ 内筒 ４ ジヤツキ ８ ロツクピン ９ 外筒側のピン孔 １０ 内筒側のピン孔 １１ 内筒側のピン孔 １５ 圧縮ばね １６ Ｕ字状の操作杆 １８ 梁状の係合部 １９ 外筒側の受板 ２０ 内筒側の受板 ２５ ガイド板 DESCRIPTION OF SYMBOLS 1 Body 2 Outer cylinder 3 Inner cylinder 4 Jack 8 Lock pin 9 Pin hole on outer cylinder 10 Pin hole on inner cylinder 11 Pin hole on inner cylinder 15 Compression spring 16 U-shaped operating rod 18 Beam-shaped engaging part 19 Receiving plate on outer cylinder side 20 Receiving plate on inner cylinder side 25 Guide plate
Claims (3)
伸縮自在に嵌挿してなる伸縮ビームの内筒先端に垂直の
ジヤツキを固着し、少くも該伸縮ビームの最伸長位置と
最収縮位置とにおいて、外筒の先端部に設けた１個のピ
ン孔に夫々合致するピン孔を内筒に穿設して、該内筒側
ピン孔に常時嵌り込み付勢されるロツクピンを外筒側ピ
ン孔に装着したアウトリガのロツク装置において、ロツ
クピンの外端に、前記内，外筒の全ピン孔の軸線を含む
平面内で回動する操作杆を枢着して、該ロツクピンを内
筒側のピン孔からの離脱状態に保持するように、操作杆
の中間に設けた係合部が当接係合可能な受板を、内筒と
外筒の先端に夫々伸縮ビームと略平行配置で片持ち支持
させ、該伸縮ビームの最収縮位置において、内筒側の受
板上に操作杆の係合部を係脱し得るように、内筒側の受
板を外筒側受板の外側に並列すると共に、伸長状態の伸
縮ビームを最収縮する際には、内筒側受板の先端で外筒
側受板上に係合している操作杆の係合部或いは中間部を
押し脱すように構成したことを特徴とするアウトリガの
自動ロツク装置。1. A vertical jack is fixed to the end of an inner cylinder of a telescopic beam formed by inserting an inner cylinder in a predetermined range so as to be freely expandable and contractable in an outer cylinder mounted on a vehicle body. At the most contracted position, a pin hole corresponding to one pin hole provided at the distal end of the outer cylinder is formed in the inner cylinder, and a locking pin which is always fitted and urged into the inner cylinder side pin hole is provided. In the locking device of the outrigger attached to the outer cylinder side pin hole, an operating rod that pivots in a plane including the axis of all the pin holes of the inner and outer cylinders is pivotally attached to the outer end of the locking pin, and the locking pin is attached. In order to maintain the detached state from the pin hole on the inner cylinder side, a receiving plate provided with an engaging portion provided in the middle of the operating rod can be brought into contact with and engaged with the telescopic beam at the tip of the inner cylinder and the outer cylinder, respectively. The cantilever is supported in a parallel arrangement, and the operating rod is engaged with the receiving plate on the inner cylinder side at the most contracted position of the telescopic beam. The inner cylinder side receiving plate is arranged outside the outer cylinder side receiving plate so that the part can be disengaged. An automatic locking device for an outrigger, wherein an engaging portion or an intermediate portion of an operating rod engaged on a side receiving plate is pushed out.
該Ｕ字状操作杆の回動面内においてＶ形に屈曲して、該
Ｖ形屈曲部の内、ロツクピンへの連結辺を除いた部分を
梁状の係合部に構成したことを特徴とする請求項１のア
ウトリガの自動ロツク装置。2. The locking pin side end of the U-shaped operating rod is
The U-shaped operating rod is bent in a V-shape in the rotation plane, and a portion of the V-shaped bent portion excluding a side connected to the lock pin is formed as a beam-shaped engaging portion. The automatic locking device for an outrigger according to claim 1.
Ｕ字状の操作杆の回動面を合致させる手段として、外筒
と内筒の先端に夫々片持ち支持させた受板の幅を、中間
に梁状の係合部を備えるＵ字状操作杆内に嵌り込み得る
一定大きさに設定すると共に、外筒の先端に片持ち支持
させた受板の外筒基端側端末とこれに対応する外筒表面
との間に、ロツクピンを覆うように該受板と同じ幅を持
つガイド板を連設して、ロツクピンの軸線とガイド板の
表面との間における受板と平行な方向の距離を、該ロツ
クピンに対する前記梁状係合部の内縁の回動半径より小
さく設定したことを特徴とする請求項１のアウトリガの
自動ロツク装置。3. A support which is cantilevered at the distal ends of the outer cylinder and the inner cylinder, respectively, as means for matching the turning surface of the U-shaped operating rod to a plane including the axis of all the pin holes of the inner cylinder and the outer cylinder. The width of the plate is set to a certain size that can be fitted into a U-shaped operating rod having a beam-shaped engaging portion in the middle, and the base end of the outer cylinder of a receiving plate that is cantilevered at the tip of the outer cylinder. A guide plate having the same width as the receiving plate is continuously provided between the side terminal and the corresponding outer cylinder surface so as to cover the locking pin, and a receiving plate is provided between the axis of the locking pin and the surface of the guide plate. 2. The automatic locking device for an outrigger according to claim 1, wherein a distance in a direction parallel to the direction of rotation is set smaller than a turning radius of an inner edge of the beam-shaped engaging portion with respect to the locking pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1555392U JP2571062Y2 (en) | 1992-02-07 | 1992-02-07 | Outrigger automatic locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1555392U JP2571062Y2 (en) | 1992-02-07 | 1992-02-07 | Outrigger automatic locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0564026U JPH0564026U (en) | 1993-08-24 |
| JP2571062Y2 true JP2571062Y2 (en) | 1998-05-13 |
Family
ID=11891964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1555392U Expired - Fee Related JP2571062Y2 (en) | 1992-02-07 | 1992-02-07 | Outrigger automatic locking device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2571062Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012215534A1 (en) | 2012-08-31 | 2014-03-06 | Putzmeister Engineering Gmbh | locking device |
| DE102012215546A1 (en) * | 2012-08-31 | 2014-03-06 | Putzmeister Engineering Gmbh | locking device |
-
1992
- 1992-02-07 JP JP1555392U patent/JP2571062Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0564026U (en) | 1993-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0943580A3 (en) | Lateral jib locking device | |
| JP2571062Y2 (en) | Outrigger automatic locking device | |
| JP2010064595A (en) | Lower traveling body of crawler type vehicle | |
| JP6493649B1 (en) | Outrigger device | |
| JP2008063761A (en) | Boom fall preventing device | |
| US5899496A (en) | Variable-geometry stabilizing foot, in particular for earth-moving vehicles | |
| JP3561005B2 (en) | X-link type lifting device | |
| JP3898140B2 (en) | Jacking device | |
| JP3044007B2 (en) | Infinite rail traveling vehicle with switchable travel width | |
| JPH0595981U (en) | Jib turning device for crane with jib | |
| JP2508104Y2 (en) | Coupling device for telescopic cylinder in telescopic boom | |
| WO2018052149A1 (en) | Outrigger device | |
| JPH03158392A (en) | Buckling prevention device for boom telescopic cylinder | |
| JPS6349127Y2 (en) | ||
| JPS61181733A (en) | Cartridge adjuster for cartridge transport vehicle | |
| JPH0786075B2 (en) | Outrigger operating device | |
| JP3550012B2 (en) | Telescopic boom | |
| EP4015309A1 (en) | Cargo bar | |
| JP3263203B2 (en) | Boom attachment / detachment device for work vehicle with boom | |
| JPH0111871Y2 (en) | ||
| JPS5914525Y2 (en) | Control device for towed work equipment/tools | |
| KR100485248B1 (en) | Hinge of monitor | |
| JPH0687309U (en) | Jig used to align the work with the push-pull device | |
| JPS6319380B2 (en) | ||
| KR200153635Y1 (en) | Swing arm fixing apparatus of concrete pump-car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |