JPH0144379Y2 - - Google Patents
Info
- Publication number
- JPH0144379Y2 JPH0144379Y2 JP20111482U JP20111482U JPH0144379Y2 JP H0144379 Y2 JPH0144379 Y2 JP H0144379Y2 JP 20111482 U JP20111482 U JP 20111482U JP 20111482 U JP20111482 U JP 20111482U JP H0144379 Y2 JPH0144379 Y2 JP H0144379Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- ground plate
- arm
- rod
- jack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000008602 contraction Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Jib Cranes (AREA)
Description
【考案の詳細な説明】
本考案はキヤリア側に固定される外筒と該外筒
に対して伸縮自在に内挿された内筒を有する伸縮
式アームの前記内筒の先端部に接地板付きのジヤ
ツキシリンダを前記内筒に対して傾動不能状態で
取付けてなるアウトリガ装置に関するものであ
る。第１図にはキヤリアＹに従来構造のアウトリ
ガ装置Z1を装着したトラツククレーンが示されて
いる。この従来のアウトリガ装置Z1は、第２図に
示すように外筒２と内筒３よりなる伸縮式アーム
１の該内筒３の先端部に、下向きに伸長するシリ
ンダロツド１２にに大径円板状の接地板６を連結
したジヤツキシリンダ５を取付け、アウトリガ格
納時、即ち伸縮式アーム１の全縮時に接地板６が
水平姿勢を維持したままでその外側端部６ｃを外
筒２の先端面２ａより内方に収納させるように構
成されていた。[Detailed description of the invention] The present invention has a telescoping arm that has an outer cylinder fixed to the carrier side and an inner cylinder that is telescopically inserted into the outer cylinder, and a ground plate is attached to the tip of the inner cylinder. This invention relates to an outrigger device in which a jack cylinder is attached to the inner cylinder in a non-tilting state. FIG. 1 shows a truck crane in which a carrier Y is equipped with an outrigger device Z1 of a conventional structure. As shown in Fig. 2, this conventional outrigger device Z1 has a telescoping arm 1 consisting of an outer cylinder 2 and an inner cylinder 3, and a cylinder rod 12 that extends downward and has a large diameter circle at the tip of the inner cylinder 3. A jack cylinder 5 connected to a plate-shaped ground plate 6 is attached, and when the outrigger is retracted, that is, when the telescoping arm 1 is fully retracted, the outer end 6c of the ground plate 6 is connected to the outer cylinder 2 while the ground plate 6 maintains a horizontal position. It was configured to be housed inward from the tip surface 2a.
ところが、この従来のアウトリガ装置Z1では、
アウトリガ格納時に接地板外側端部６ｃを外筒先
端面２ａより内方に収納せしめるためにはアウト
リガ格納状態においてジヤツキシリンダ５の軸心
Ｑ−Ｑを外筒先端面２ａより所要寸法Ｓだけ内方
に引つ込めなければならず、従つて内筒３の有効
長さが短かくなるため、アウトリガの張り出し長
さが短く制限されるという問題があつた。尚、内
筒３の有効長さが短かいままでアウトリガの張り
出し長さを長くすると外筒２と内筒３のラツプ量
が少なくなつて伸縮式アーム１の強度低下を招
き、又アウトリガの張り出し長さが短かいとトラ
ツククレーン等の作業機の安定性が悪くなるとい
う問題がある。 However, with this conventional outrigger device Z 1 ,
In order to store the ground plate outer end 6c inward from the outer cylinder tip surface 2a when the outriggers are retracted, the axis Q-Q of the jack cylinder 5 must be placed within the required dimension S from the outer cylinder tip surface 2a when the outriggers are retracted. Therefore, the effective length of the inner cylinder 3 is shortened, resulting in a problem that the length of the outrigger overhang is limited to a short length. If the effective length of the inner cylinder 3 remains short and the length of the outrigger is increased, the amount of overlap between the outer cylinder 2 and the inner cylinder 3 will decrease, resulting in a decrease in the strength of the telescoping arm 1, and the extension of the outrigger. If the length is short, there is a problem that the stability of working machines such as truck cranes becomes worse.
本考案は、上記の如き従来のアウトリガ装置の
問題点を改善することを目的としてなされたもの
であつて、本考案は頭書の如き基本構成を備えた
アウトリガ装置において、前記接地板を前記ジヤ
ツキシリンダの下端においてガイド部材によつて
前記アームの伸縮方向にスライド可能とする一
方、前記ジヤツキシリンダの側部近傍に、上端を
前記内筒又は前記ジヤツキシリンダの固定部材等
の如く前記内筒と一体化された部材の適所に枢着
した基部側杆と該基部側杆に対して伸縮自在に嵌
合し且つ下端を前記接地板に枢着した先部側杆と
を有する伸縮杆装置を設置するとともに、前記ジ
ヤツキシリンダと前記伸縮杆装置の間に、前記ジ
ヤツキシリンダの縮小動作時には該縮小動作に連
動して前記先部側杆の下端を前記接地板とともに
前記アームに対して該アーム縮小方向に相対移動
せしめる如く前記伸縮杆装置を前記アーム縮小方
向に傾動せしめ且つ前記ジヤツキシリンダの伸長
動作時には該伸長動作に連動して前記先部側杆の
下端を前記接地板とともに前記アームに対して該
アーム伸長方向に相対移動せしめる如く前記伸縮
杆装置を前記アーム伸長方向に傾動せしめる如く
作用する伸縮杆傾動装置を設け、もつてアウトリ
ガ装置の不使用時（ジヤツキシリンダの収縮時）
には接地板をキヤリア側に寄せ、逆にアウトリガ
装置の使用時（ジヤツキシリンダの伸長時）には
接地板をキヤリアの外方側に張り出させることが
できるようにし、それによつて内筒の有効長さを
延長させることができるようにしたことを特徴と
するものである。 The present invention was made for the purpose of improving the problems of the conventional outrigger device as described above.The present invention provides an outrigger device having the basic configuration as described above, in which the ground plate is connected to the jack. The lower end of the cylinder is slidable in the extending and contracting direction of the arm by a guide member, while the upper end of the inner cylinder is connected to the inner cylinder or a fixing member of the jack cylinder, etc. near the side of the cylinder. A telescoping rod device comprising a base side rod pivoted at a proper position of a member integrated with the base side rod, and a tip side rod telescopically fitted to the base side rod and having a lower end pivotally connected to the ground plate. At the same time, between the jack cylinder and the telescopic rod device, when the jack cylinder is retracting, the lower end of the tip side rod is connected to the arm with the ground plate in conjunction with the retracting operation. The telescopic rod device is tilted in the arm contraction direction so as to relatively move in the arm contraction direction, and when the jack cylinder is extended, the lower end of the tip side rod is moved together with the ground plate in conjunction with the extension operation. A telescoping rod tilting device is provided, which acts to tilt the telescoping rod device in the arm extension direction so as to cause relative movement in the arm extension direction, so that when the outrigger device is not in use (when the jack cylinder is retracted).
The ground plate is moved toward the carrier side, and conversely, when the outrigger device is used (when the jack cylinder is extended), the ground plate can be extended to the outside of the carrier. It is characterized by being able to extend the effective length of.
以下、第３図ないし第７図に示す実施例を参照
して本考案のアウトリガ装置を説明すると、この
実施例のアウトリガ装置Z2は、第３図及び第４図
に示す如くトラツククレーン等のキヤリア側に固
定される外筒２と該外筒２内に伸縮自在に内挿さ
れた内筒３よりなる伸縮式のアーム１の前記内筒
３の先端部３ａに接地板６付きのジヤツキシリン
ダ５を前記内筒３に対して傾動不能状態で取付け
て構成されている。 Hereinafter, the outrigger device of the present invention will be explained with reference to the embodiment shown in FIGS. 3 to 7. The outrigger device Z2 of this embodiment is used for a truck crane or the like as shown in FIGS. 3 and 4. A retractable arm 1 consisting of an outer cylinder 2 fixed to the carrier side and an inner cylinder 3 telescopically inserted into the outer cylinder 2 has a jack with a ground plate 6 attached to the tip 3a of the inner cylinder 3. The cylinder 5 is attached to the inner cylinder 3 in a non-tilting state.
伸縮式アーム１は、伸縮シリンダ４によつて伸
縮せしめられ、その全縮状態（第３図の状態）に
おいては内筒３の先端面（外端面）３ｂと外筒２
の先端面（外端面）２ａとがほぼ面一となるよう
に外筒２及び内筒３の長さを設定している。 The telescoping arm 1 is extended and contracted by a telescoping cylinder 4, and in its fully retracted state (the state shown in FIG. 3), the distal end surface (outer end surface) 3b of the inner cylinder 3 and the outer cylinder 2
The lengths of the outer tube 2 and the inner tube 3 are set so that the tip end surface (outer end surface) 2a of the outer tube 2 and the inner tube 3 are substantially flush with each other.
ジヤツキシリンダ５は内筒３の先端部３ａに形
成した空室１０内にそのシリンダロツド１２を上
側に向けた状態で縦向きに収容されている。尚、
このジヤツキシリンダ５は、シリンダロツド１２
の先端１２ａを空室１０内の上部に固定すること
によりシリンダチユーブ１１を吊下げた状態で取
付けられている。 The jack cylinder 5 is housed vertically in a cavity 10 formed at the tip 3a of the inner cylinder 3 with its cylinder rod 12 facing upward. still,
This jack cylinder 5 has a cylinder rod 12.
The cylinder tube 11 is installed in a suspended state by fixing the tip 12a of the cylinder tube 11 to the upper part of the cavity 10.
シリンダチユーブ１１の外面には内筒先端部３
ａの各側壁３ｃ，３ｃ（第５図参照）に対向する
位置に外端面が該内筒側壁３ｃ，３ｃ内面に近接
するようにしてそれぞれ縦長の突条１３，１３が
形成され、他方内筒先端部３ａの各側壁３ｃ，３
ｃには該シリンダチユーブ１１側の各突条１３，
１３をそれぞれの両側から挟むようにして各２個
づつのガイド片１４，１４が形成されていて、シ
リンダチユーブ１１がシリンダロツド１２に対し
て非回動でしかも該シリンダチユーブ１１が前
後、左右に傾動しないようにしている。 The outer surface of the cylinder tube 11 has an inner cylinder tip 3.
Longitudinal protrusions 13, 13 are formed at positions facing the respective side walls 3c, 3c (see FIG. 5) of the inner cylinder so that their outer end surfaces are close to the inner surfaces of the inner cylinder side walls 3c, 3c, respectively. Each side wall 3c, 3 of the tip portion 3a
c, each protrusion 13 on the cylinder tube 11 side;
Two guide pieces 14, 14 are formed to sandwich the cylinder tube 13 from both sides, so that the cylinder tube 11 does not rotate relative to the cylinder rod 12, and also prevents the cylinder tube 11 from tilting back and forth, left and right. I have to.
シリンダチユーブ１１の下端１１ａには接地板
取付台１６がボールジヨイント部１５を介して全
方向に揺動自在に取付けられている。この接地板
取付台１６は円柱形の基部１７の下部に矩形の平
板部１８を形成して構成されている。尚、この接
地板取付台１６の平板部１８がジヤツキシリンダ
５の下端部５ａとなる。 A ground plate mount 16 is attached to the lower end 11a of the cylinder tube 11 via a ball joint 15 so as to be swingable in all directions. This ground plate mounting base 16 is constructed by forming a rectangular flat plate portion 18 at the bottom of a cylindrical base portion 17. Incidentally, the flat plate portion 18 of the ground plate mounting base 16 becomes the lower end portion 5a of the jack cylinder 5.
接地板６は比較的大面積を有する矩形平板状に
形成されている。 The ground plate 6 is formed into a rectangular flat plate shape having a relatively large area.
この接地板６は、接地板取付台１６の平板部１
８に対して前記アーム１の伸縮方向（第３図にお
ける矢印Ａ，Ｂ方向）にスライド可能に装着され
ている。即ち、、接地板６の上面に、第６図に示
すように前記アーム伸縮方向（矢印Ａ，Ｂ方向）
に向けて２条の断面形のガイド部材８，８を相
互に内向きにした状態で設けるとともに、該ガイ
ド部材８，８に接地板取付台１６の平板部１８に
おけるアーム伸縮方向と平行な両側辺部１８ａ，
１８ａをそれぞれ嵌合させることにより該接地板
６を接地板取付台平板部１８に対してアーム伸縮
方向にスライドし得るように装着している。尚、
このガイド部材８，８は、第３図に示すように接
地板６の中央部Ｐがジヤツキシリンダ５の中心Ｑ
−Ｑよりかなりアーム縮小方向（矢印Ｂ方向）側
に寄つた位置から第４図に示すような接地板６の
中央部Ｐがジヤツキシリンダ５の中心Ｑ−Ｑにほ
ぼ重合するまでの範囲で該接地板６をガイドし得
るような長さを有している。又このガイド部材
８，８の各両端部外側には接地板抜け止め用のス
トツパー１９，１９が設けられている。 This ground plate 6 is connected to the flat plate part 1 of the ground plate mounting base 16.
8 so as to be slidable in the direction of expansion and contraction of the arm 1 (directions of arrows A and B in FIG. 3). That is, on the upper surface of the ground plate 6, as shown in FIG.
Two cross-sectional guide members 8, 8 are provided facing inward toward each other, and the guide members 8, 8 are provided with two guide members 8, 8 on both sides of the flat plate portion 18 of the ground plate mounting base 16 parallel to the arm extension/contraction direction. Side portion 18a,
18a, the ground plate 6 is attached to the ground plate mount flat plate portion 18 so as to be slidable in the direction of extension and contraction of the arm. still,
As shown in FIG.
- In the range from a position considerably closer to the arm reduction direction (direction of arrow B) than Q until the center part P of the ground plate 6 almost overlaps with the center Q-Q of the jack cylinder 5 as shown in FIG. It has a length that can guide the ground plate 6. Also, stoppers 19, 19 for preventing the ground plate from coming off are provided on the outer sides of both ends of the guide members 8, 8.
ジヤツキシリンダ５のアーム縮小方向（矢印Ｂ
方向）側の側部近傍には第５図に示すように四角
筒状の基部側杆２１と該基側杆２１に対して下方
向に向けて伸縮自在に内挿された四角筒状の先部
側杆２２とを有する伸縮杆装置７が上下方向に向
けて設置されている。基部側杆２１の上端２１ａ
は内筒３の先端部空室１０内の上部にピン２３で
枢着されており、又先部側杆２２の下端２２ａは
接地板６の上面にピン２４で枢着されている。そ
してこの伸縮杆装置７は、ジヤツキシリンダ５の
伸縮動作に連動して伸縮せしめられるようになつ
ている。尚、前記接地板６が第３図に示すように
アーム縮小方向（矢印Ｂ方向）側に寄つた位置に
あるときには、伸縮杆装置７はアーム縮小方向Ｂ
側に向けて下降傾斜し、又接地板６が第４図に示
すようにアーム伸長方向（矢印Ａ方向）側に寄つ
た位置（ジヤツキシリンダ中心Ｑ−Ｑと接地板中
央部Ｐが上下方向に重合する位置）にあるときに
は、該伸縮杆装置７はジヤツキシリンダ５に対し
て平行（鉛直方向）に向くようにしている。 The arm reduction direction of the jack cylinder 5 (arrow B
As shown in FIG. 5, near the side of the (direction) side, there is a square cylindrical base side rod 21 and a square cylindrical tip inserted into the base side rod 21 in a downwardly expandable manner. A telescopic rod device 7 having a section side rod 22 is installed facing in the vertical direction. Upper end 21a of base side rod 21
is pivotally attached to the upper part of the tip cavity 10 of the inner cylinder 3 with a pin 23, and the lower end 22a of the tip side rod 22 is pivotally attached to the upper surface of the ground plate 6 with a pin 24. This telescopic rod device 7 is adapted to be extended and contracted in conjunction with the telescopic operation of the jack cylinder 5. Incidentally, when the ground plate 6 is in a position closer to the arm reduction direction (arrow B direction) as shown in FIG.
The ground plate 6 is tilted downward toward the side, and the ground plate 6 is in a position closer to the arm extension direction (direction of arrow A) as shown in FIG. When the telescopic rod device 7 is in the overlapping position), the telescopic rod device 7 is oriented parallel to (in the vertical direction) the jack cylinder 5.
ジヤツキシリンダ５のシリンダチユーブ１１と
伸縮杆装置７の基部側杆２１との間には、ジヤツ
キシリンダ５の伸縮動作に連動して伸縮杆装置７
の下部側を接地板６とともにアーム伸縮方向（矢
印Ａ，Ｂ方向）に強制的に移動せしめ、もつて前
記接地板６を内筒３に対してアーム伸縮方向に相
対移動せしめる如く作用する伸縮杆傾動装置９が
設けられている。この伸縮杆傾動装置９は、伸縮
杆装置７の基部側杆２１の両側面（アーム伸縮方
向に対して直交する側面）に直線ガイド部３１，
３１をそれぞれ上下方向に向けて形成し且つ該直
線ガイド部３１，３１の上部にジヤツキシリンダ
５側に向けて傾斜する傾斜ガイド部３２，３２を
有する一連のガイド溝３０，３０を形成する一
方、シリンダチユーブ１１の上部外面に伸縮杆装
置７側の横方向に向けて突出形成した一対の突出
杆３３，３３の先端部にそれぞれガイド溝３０，
３０と嵌合するガイドローラ３４，３４を取付け
て構成している。そしてジヤツキシリンダ５が第
３図に示す全縮状態にあるときには、シリンダチ
ユーブ１１側のガイドローラ３４，３４が基部側
杆２１のガイド溝３０，３０の傾斜ガイド部３
２，３２に案内されて伸縮杆装置７がその基部側
杆上端２１ａの枢支部（ピン２３）を中心として
アーム縮小方向（矢印Ｂ方向）側に強制的に傾斜
せしめられた状態で支持され、（ジヤツキシリン
ダ５が傾動不能となつているため）、逆にジヤツ
キシリンダ５が第４図に示す伸長状態にあるとき
には、該ガイドローラ３４，３４がガイド溝３
０，３０の直線ガイド部３１，３１に案内されて
伸縮杆装置７が鉛直方向に向けられた状態で支持
せしめられるようになつている。尚、ジヤツキシ
リンダ５の縮小時においてガイドローラ３４がガ
イド溝３０の傾斜ガイド部３２に衝合した際に、
第７図に示すようにジヤツキシリンダ５の縮小力
ＦはF1とF2の分力に分けられ、その分力F1によ
つて伸縮杆装置７をアーム縮小方向に傾動せしめ
るように作用する。又ジヤツキシリンダ５の伸長
時においてガイドローラ３４が傾斜ガイド部３２
から直線ガイド部３１側に移動する際に、ジヤツ
キシリンダ５の伸長力は前記とは逆に作用して伸
縮杆装置７を鉛直方向に復帰させる如く作用す
る。従つてジヤツキシリンダ５の縮小状態（第３
図）では先部側杆２２の下端２２ａがアーム縮小
方向（矢印Ｂ方向）側に移動せしめられることに
より、接地板６が該アーム縮小方向に移動せしめ
られ、ジヤツキシリンダ５の伸長状態（第４図）
では逆に接地板６がアーム伸長方向（矢印Ａ方
向）側に移動せしめられるようになつている。
尚、ジヤツキシリンダ全縮状態（第３図）では接
地板６の外側端部（アーム伸長方向側端部）６ａ
は、内筒３の先端面３ｂとほぼ面一となり、又ジ
ヤツキシリンダ伸長状態（第４図）では該接地板
６の外側端部６ａは内筒３の先端面３ｂより所定
寸法Ｗだけ外側に張り出すようになつている。 A telescopic rod device 7 is provided between the cylinder tube 11 of the jack cylinder 5 and the base side rod 21 of the telescopic rod device 7 in conjunction with the expansion/contraction movement of the jack cylinder 5.
A retractable rod that forcibly moves the lower side of the ground plate 6 in the direction of extension and contraction of the arm (in the directions of arrows A and B), thereby causing the ground plate 6 to move relative to the inner cylinder 3 in the direction of extension and contraction of the arm. A tilting device 9 is provided. This telescopic rod tilting device 9 includes linear guide portions 31 on both sides of the base side rod 21 of the telescopic rod device 7 (side surfaces perpendicular to the arm extension/contraction direction).
A series of guide grooves 30, 30 are formed on the upper portions of the straight guide portions 31, 31, respectively, with inclined guide portions 32, 32 inclined toward the jack cylinder 5 side. , guide grooves 30 are provided at the tips of a pair of protruding rods 33, 33 formed on the upper outer surface of the cylinder tube 11 to protrude in the lateral direction on the side of the telescopic rod device 7, respectively.
30 and are fitted with guide rollers 34, 34 that fit with the guide rollers 30, 34. When the jack cylinder 5 is in the fully retracted state shown in FIG.
2 and 32, the telescopic rod device 7 is supported in a state where it is forcibly inclined in the arm contraction direction (arrow B direction) about the pivot portion (pin 23) of the upper end 21a of the base side rod, Conversely, when the jack cylinder 5 is in the extended state shown in FIG. 4 (because the jack cylinder 5 is unable to tilt), the guide rollers 34,
The telescopic rod device 7 is supported in a vertically oriented state by being guided by linear guide portions 31, 31 of 0 and 30. Note that when the guide roller 34 collides with the inclined guide portion 32 of the guide groove 30 when the jack cylinder 5 is contracted,
As shown in FIG. 7, the contraction force F of the jack cylinder 5 is divided into component forces F 1 and F 2 , and the component force F 1 acts to tilt the telescopic rod device 7 in the arm contraction direction. do. Also, when the jack cylinder 5 is extended, the guide roller 34 moves toward the inclined guide portion 32.
When moving toward the linear guide portion 31, the stretching force of the jack cylinder 5 acts in the opposite manner to that described above, and acts to return the telescopic rod device 7 to the vertical direction. Therefore, the reduced state of the jack cylinder 5 (third
In the figure), when the lower end 22a of the tip side rod 22 is moved in the arm reduction direction (arrow B direction), the ground plate 6 is moved in the arm reduction direction, and the jack cylinder 5 is in the extended state (in the Figure 4)
In contrast, the ground plate 6 is moved in the arm extension direction (arrow A direction).
In addition, in the fully retracted state of the jack cylinder (FIG. 3), the outer end (end in the arm extension direction) of the ground plate 6 6a
is almost flush with the distal end surface 3b of the inner cylinder 3, and in the extended state of the cylinder cylinder (FIG. 4), the outer end 6a of the ground plate 6 is outward by a predetermined distance W from the distal end surface 3b of the inner cylinder 3. It is starting to overhang.
前記内筒３の先端部３ａの底面３ｄには、接地
板取付台１６の円柱形基部１７の外径よりやや大
きい内径をもつガイド筒２０が下方に向けて突出
形成されている。このガイド筒２０は、ジヤツキ
シリンダ５の縮小時又は伸長時において、ガイド
ローラ３４がガイド溝３０の直線ガイド部３１か
ら傾斜ガイド部３２へ移るときあるいは逆に傾斜
ガイド部３２から直線ガイド部３１へ移るときに
接地板６及び接地板取付台１６がボールジヨイン
ト部１５を中心としてアーム伸縮方向に傾動する
のを防止するためのもので、ガイドローラ３４が
傾斜ガイド部３２側に係合している間では該ガイ
ド筒２０が接地板取付台１６の基部１７の少なく
とも一部に嵌合するようにしている。従つてジヤ
ツキシリンダ５の伸縮時において伸縮杆装置７に
アーム伸縮方向（矢印Ａ，Ｂ方向）の傾動作用が
生じても接地板取付台１６が前記ガイド筒２０に
ガイドされることとなり、接地板取付台１６が傾
動するのを規制することができるようになつてい
る。 A guide tube 20 having an inner diameter slightly larger than the outer diameter of the cylindrical base 17 of the ground plate mount 16 is formed to protrude downward from the bottom surface 3d of the tip 3a of the inner tube 3. This guide cylinder 20 is used when the guide roller 34 moves from the linear guide part 31 of the guide groove 30 to the inclined guide part 32, or vice versa, when the jack cylinder 5 is contracted or expanded. This is to prevent the ground plate 6 and the ground plate mounting base 16 from tilting in the arm extension/contraction direction around the ball joint part 15 when moving to the slanted guide part 32. During this period, the guide tube 20 fits into at least a portion of the base 17 of the ground plate mount 16. Therefore, even if the telescoping rod device 7 is tilted in the arm extension/retraction direction (in the direction of arrows A and B) when the jack cylinder 5 is extended or retracted, the ground plate mounting base 16 will be guided by the guide tube 20, and the contact will be prevented. Tilting of the base plate mount 16 can be restricted.
図示のアウトリガ装置Z2の作用を総括して説明
すると、アウトリガ格納状態（第３図）では、ジ
ヤツキシリンダ５が全縮せしめられることによ
り、ガイドローラ３４がガイド溝３０の傾斜ガイ
ド部３２側に係合されて伸縮杆装置７をアーム縮
小方向（矢印Ｂ方向）に下降傾斜せしめるように
作用し、それによつて接地板６が接地板取付台１
６に対してアーム縮小方向に強制的に相対移動せ
しめられている。従つてこの状態では接地板６が
内筒３の先端面３ｂより内側に収納されている。
そしてアウトリガ装置Z2の使用時には、第４図に
示すように伸縮式アーム１を伸長させた後にジヤ
ツキシリンダ５を伸長させると、まずガイドロー
ラ３４が傾斜ガイド部３２から直線ガイド部３１
に移るのにともなつて伸縮杆装置７が鉛直方向に
向けられ且つそれによつて接地板６が接地板取付
台１６に対してアーム伸長方向（矢印Ａ方向）に
相対移動せしめられ、その状態でさらにジヤツキ
シリンダ５を伸長させれば接地板６の一部が内筒
先端面３ｂより外方に張り出した状態で接地され
る。尚、ジヤツキシリンダ５の伸長状態では接地
板取付台１６より下方部分が地面の傾斜角度に応
じてボールジヨイント部１５を中心として全方向
に傾動し得るようになつている。 To summarize the operation of the illustrated outrigger device Z2 , in the outrigger retracted state (FIG. 3), the guide roller 34 is moved toward the inclined guide portion 32 side of the guide groove 30 by fully retracting the jack cylinder 5. is engaged with and acts to tilt the telescopic rod device 7 downward in the direction of arm reduction (in the direction of arrow B), thereby causing the ground plate 6 to move toward the ground plate mounting base 1.
6, the arm is forcibly moved in the arm contraction direction. Therefore, in this state, the ground plate 6 is housed inside the distal end surface 3b of the inner cylinder 3.
When the outrigger device Z 2 is used, as shown in FIG.
, the telescopic rod device 7 is oriented vertically, and thereby the ground plate 6 is moved relative to the ground plate mounting base 16 in the arm extension direction (direction of arrow A), and in this state. When the jack cylinder 5 is further extended, a portion of the ground plate 6 is grounded in a state protruding outward from the inner cylinder tip surface 3b. In the extended state of the jack cylinder 5, the portion below the ground plate mounting base 16 can tilt in all directions about the ball joint portion 15 depending on the inclination angle of the ground.
尚、この実施例ではジヤツキシリンダ５は、そ
のシリンダロツド１２を上側にした状態で取付け
られているため、ジヤツキシリンダ５の伸長時に
該ロツド１２が内筒３の下方に露出せず、従つて
異物（石又は鉄鋼構造物等）の衝突によるロツド
１２の損傷を未然に防止できる作用がある。 In this embodiment, the jack cylinder 5 is installed with its cylinder rod 12 facing upward, so that the rod 12 is not exposed below the inner cylinder 3 when the jack cylinder 5 is extended. This has the effect of preventing damage to the rod 12 due to collision with foreign objects (stones, steel structures, etc.).
又、図示の実施例では、伸縮杆装置７の基部側
杆２１の上端２１ａは内筒３側に枢着されている
が、他の実施例では基部側杆２１の上端２１ａは
ジヤツキシリンダ５の固定部材等の如く該内筒３
と一体化された部材の適所に枢着させることがで
きる。例えば図示のジヤツキシリンダ５ではシリ
ンダロツド１２の上端寄りに枢着させればよい。 Further, in the illustrated embodiment, the upper end 21a of the base side rod 21 of the telescoping rod device 7 is pivotally attached to the inner cylinder 3 side, but in other embodiments, the upper end 21a of the base side rod 21 is attached to the jack cylinder 5. The inner cylinder 3 as a fixing member etc.
It can be pivoted in place on a member integrated with. For example, in the illustrated jacket cylinder 5, the cylinder rod 12 may be pivotally mounted near the upper end of the cylinder rod 12.
続いて本考案の効果を説明すると、本考案のア
ウトリガ装置は、接地板６をジヤツキシリンダ５
の下端５ａにおいて伸縮式アーム１の伸縮方向に
スライド可能に装着する一方、ジヤツキシリンダ
５と該ジヤツキシリンダ５の側部近傍に設置され
且つ下端２２ａを接地板６に連結した伸縮杆装置
７との間に、ジヤツキシリンダ縮小時に伸縮杆装
置７の下端２２ａを伸縮式アーム１の縮小方向に
移動せしめ又ジヤツキシリンダ伸長時に該伸縮杆
装置下端２２ａを伸縮式アーム１の伸長方向に移
動せしめる如く作用する伸縮杆傾動装置９を設け
ているので、アウトリガ装置の不使用時には接地
板６をキヤリア側に寄せ、逆にアウトリガ装置の
使用時には接地板６を外方側に張り出させること
ができ、それによつて内筒３の有効長さを延長さ
せることができるという効果がある。尚、内筒３
の有効長さが長くなると外筒２と内筒３とのラツ
プ量が増大して伸縮式アーム１の強度アツプを図
ることができるとともにアウトリガの張り出し長
さを長くできるので、トラツククレーン等の作業
機の安定性を向上させることができる。 Next, to explain the effects of the present invention, the outrigger device of the present invention connects the ground plate 6 to the jack cylinder 5.
The telescoping rod device 7 is attached to the lower end 5a of the telescoping arm 1 so as to be slidable in the extending and retracting direction of the telescoping arm 1, and is installed near the side of the jack cylinder 5 and the jack cylinder 5 and has its lower end 22a connected to the ground plate 6. When the jack cylinder is contracted, the lower end 22a of the telescoping rod device 7 is moved in the direction of contraction of the telescoping arm 1, and when the jack cylinder is being extended, the lower end 22a of the telescoping rod device 7 is moved in the direction of extension of the telescoping arm 1. Since the telescopic lever tilting device 9 is provided, which acts as if the outrigger device is in use, the ground plate 6 can be moved toward the carrier side when the outrigger device is not in use, and conversely, the ground plate 6 can be pushed outward when the outrigger device is in use. This has the effect that the effective length of the inner cylinder 3 can be extended. In addition, inner cylinder 3
As the effective length of the outrigger increases, the amount of overlap between the outer cylinder 2 and the inner cylinder 3 increases, increasing the strength of the telescoping arm 1, and increasing the length of the outrigger, making it easier to use for truck cranes, etc. The stability of the machine can be improved.
第１図は従来のアウトリガ装置をキヤリアに装
着したトラツククレーンの後正面図、第２図は第
１図のアウトリガ装置の要部縦断面図、第３図及
び第４図はそれぞれ本考案の実施例にかかるアウ
トリガ装置の格納時及び張り出し時の要部縦断面
図、第５図は第４図のＶ−Ｖ断面図、第６図は第
３図のアウトリガ装置の部分斜視図、第７図は第
３図のアウトリガ装置の一部分の作用説明図であ
る。
１……伸縮式アーム、２……外筒、３……内
筒、３ａ……内筒先端部、５……ジヤツキシリン
ダ、５ａ……ジヤツキシリンダ下端、６……接地
板、７……伸縮杆装置、８……ガイド部材、９…
…伸縮杆傾動装置、２１……基部側杆、２１ａ…
…基部側杆上端、２２……先部側杆、２２ａ……
先部側杆下端。
Figure 1 is a rear front view of a truck crane with a conventional outrigger device attached to the carrier, Figure 2 is a vertical sectional view of the main part of the outrigger device shown in Figure 1, and Figures 3 and 4 are implementations of the present invention. FIG. 5 is a longitudinal cross-sectional view of a main part of the outrigger device according to the example when it is retracted and extended, FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 4, FIG. 6 is a partial perspective view of the outrigger device in FIG. 3, and FIG. 7 3 is a diagram illustrating the operation of a portion of the outrigger device shown in FIG. 3. FIG. DESCRIPTION OF SYMBOLS 1... Telescoping arm, 2... Outer cylinder, 3... Inner cylinder, 3a... Inner cylinder tip, 5... Jack cylinder, 5a... Bottom end of jack cylinder, 6... Ground plate, 7... ...Telescopic rod device, 8...Guide member, 9...
...Telescopic rod tilting device, 21... Base side rod, 21a...
...Top end of the base side rod, 22...Tip side rod, 22a...
Lower end of the tip side rod.
Claims (1)
して伸縮自在に内挿された内筒３を有する伸縮式
のアーム１の前記内筒３の先端部３ａに、接地板
６付きのジヤツキシリンダ５を前記内筒３に対し
て傾動不能状態で取付けてなるアウトリガ装置で
あつて、前記接地板６を前記ジヤツキシリンダ５
の下端５ａにおいてガイド部材８によつて前記ア
ーム１の伸縮方向にスライド可能とする一方、前
記ジヤツキシリンダ５の側部近傍に、上端２１ａ
を前記内筒３又は前記ジヤツキシリンダ５の固定
部材等の如く前記内筒３と一体化された部材の適
所に枢着した基部側杆２１と該基部側杆２１に対
して伸縮自在に嵌合し且つ下端２２ａを前記接地
板６に枢着した先部側杆２２とを有する伸縮杆装
置７を設置するとともに、前記ジヤツキシリンダ
５と前記伸縮杆装置７の間に前記ジヤツキシリン
ダ５の縮小動作時には該縮小動作に連動して前記
先部側杆２２の下端を前記接地板６とともに前記
アーム１に対して該アーム縮小方向に相対移動せ
しめる如く前記伸縮杆装置７を前記アーム縮小方
向に傾動せしめ且つ前記ジヤツキシリンダ５の伸
長動作時には該伸長動作に連動して前記先部側杆
２２の下端を前記接地板６とともに前記アーム１
に対して該アーム伸長方向に相対移動せしめる如
く前記伸縮杆装置７を前記アーム伸長方向に傾動
せしめる如く作用する伸縮杆傾動装置９を設けた
ことを特徴とするアウトリガ装置。 A telescoping arm 1 has an outer cylinder 2 fixed to the carrier side and an inner cylinder 3 telescopically inserted into the outer cylinder 2. A ground plate 6 is attached to the tip 3a of the inner cylinder 3. This is an outrigger device in which a jack cylinder 5 is attached to the inner cylinder 3 in a non-tiltable state, and the ground plate 6 is attached to the jack cylinder 5.
The lower end 5a of the arm 1 is slidable in the extending and contracting direction by the guide member 8, while the upper end 21a is located near the side of the jack cylinder 5.
is telescopically fitted to the base side rod 21 which is pivoted at a proper position of the inner cylinder 3 or a member integrated with the inner cylinder 3, such as a fixing member of the jack cylinder 5, and the base side rod 21. A telescopic rod device 7 having a front end side rod 22 which is connected to the ground plate 6 and has a lower end 22a pivotally connected to the ground plate 6 is installed. During the retraction operation, the telescopic rod device 7 is moved in the arm retraction direction so as to move the lower end of the tip side rod 22 together with the ground plate 6 relative to the arm 1 in the arm retraction direction. and when the jack cylinder 5 is extended, the lower end of the tip side rod 22 is tilted together with the ground plate 6 in conjunction with the extension action.
1. An outrigger device characterized in that a telescoping rod tilting device 9 is provided which acts to tilt the telescoping rod device 7 in the arm extension direction so as to relatively move the telescoping rod device 7 in the arm extension direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20111482U JPS5999854U (en) | 1982-12-24 | 1982-12-24 | Outrigger device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20111482U JPS5999854U (en) | 1982-12-24 | 1982-12-24 | Outrigger device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5999854U JPS5999854U (en) | 1984-07-05 |
| JPH0144379Y2 true JPH0144379Y2 (en) | 1989-12-21 |
Family
ID=30426623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20111482U Granted JPS5999854U (en) | 1982-12-24 | 1982-12-24 | Outrigger device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5999854U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11349282A (en) * | 1998-06-08 | 1999-12-21 | Aichi Corp | Floor drive for outriggers for work vehicles |
| US20220371523A1 (en) * | 2021-05-21 | 2022-11-24 | Assembly Systems, Inc. | Outrigger pad holder |
-
1982
- 1982-12-24 JP JP20111482U patent/JPS5999854U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11349282A (en) * | 1998-06-08 | 1999-12-21 | Aichi Corp | Floor drive for outriggers for work vehicles |
| US20220371523A1 (en) * | 2021-05-21 | 2022-11-24 | Assembly Systems, Inc. | Outrigger pad holder |
| US12296790B2 (en) * | 2021-05-21 | 2025-05-13 | Interstate Assembly Systems, Inc. | Outrigger pad holder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5999854U (en) | 1984-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3871685A (en) | Device for statilization of an appliance | |
| JPH0144379Y2 (en) | ||
| JPH0718713Y2 (en) | Buckling prevention device for telescopic cylinder | |
| JP3550012B2 (en) | Telescopic boom | |
| JP3898140B2 (en) | Jacking device | |
| JPH07101693A (en) | Ram device in forklift | |
| JP3999697B2 (en) | Outrigger jack | |
| JP2571062Y2 (en) | Outrigger automatic locking device | |
| JP3373977B2 (en) | Outrigger device for self-propelled work vehicle | |
| JPH0322237Y2 (en) | ||
| JPS6146042Y2 (en) | ||
| JP2000038296A (en) | Outrigger device for work vehicle | |
| JPH0330185Y2 (en) | ||
| JPH0143963Y2 (en) | ||
| JP2566337Y2 (en) | Jack post structure | |
| JPS6121321Y2 (en) | ||
| JPS61181733A (en) | Cartridge adjuster for cartridge transport vehicle | |
| JPS5843848A (en) | Outrigger apparatus for wheeled working machinery | |
| CN119957270A (en) | Roadway support device | |
| JP2002128487A (en) | Telescopic boom | |
| JPH0736856Y2 (en) | Body support device for a vehicle having a boom | |
| JPS6231319Y2 (en) | ||
| JPS5863556A (en) | Outrigger device of wheeled work machine | |
| JPH0417611Y2 (en) | ||
| JPH0646945Y2 (en) | Aerial work vehicle |