JPH0540107Y2

JPH0540107Y2 -

Info

Publication number: JPH0540107Y2
Application number: JP18494987U
Authority: JP
Priority date: 1987-12-04
Filing date: 1987-12-04
Publication date: 1993-10-12
Anticipated expiration: 2002-12-04
Also published as: JPH0190833U

Description

【考案の詳細な説明】（考案が属する技術分野）本考案は砂杭造成用中空管や地盤攪拌混合処理
用回転軸の振れ止めの落下事故を防止する装置に
関するものである。[Detailed description of the invention] (Technical field to which the invention pertains) The present invention relates to a device for preventing falling accidents of hollow pipes for sand pile construction and steady rests of rotating shafts for ground agitation and mixing.

（考案の課題とその特徴点）砂杭造成用中空管や地盤攪拌混合処理用回転軸
が長尺の場合には、例えば実公昭60−2274号公報
に示すように、その地上露出部の中間に振れ止め
を設けるが、この振れ止めは、通常、チエーン、
ワイヤ、ロープ等の吊り材で吊つているため、こ
の吊り材が摩耗や急激な外力の作用で切断した場
合には、振れ止めが落下して、大事故になりかね
ない。(Issues of the invention and its features) When the hollow pipe for sand pile construction or the rotating shaft for ground agitation and mixing treatment is long, it is necessary to A steady rest is provided in the middle, but this steady rest is usually a chain,
Since it is suspended by hanging materials such as wires and ropes, if this hanging material breaks due to wear or sudden external force, the steady rest may fall and cause a serious accident.

本考案は、前述の吊り材が切断した場合におけ
る振り止めの落下を防止する装置を提供すること
を目的としているものであつて、その構成上の特
徴は実用新案登録請求の範囲に記載したとおりで
ある。 The purpose of the present invention is to provide a device that prevents the swing stop from falling when the above-mentioned hanging material is cut, and its structural features are as described in the claims for utility model registration. It is.

本考案装置は、吊り材で吊られているときは垂
直位置にあるストツパープレートを、吊り材が切
断した場合は略水平の停止位置に自動的に回動さ
せ、その後方突出端をストツパーに係合させて、
振り止めの落下を防止するようになつており、ス
トツパーにはリーダーの前方に上下方向に一定間
隔で取り付けた棒状材やリーダー本体の前面部材
を利用することができる。 The device of this invention automatically rotates the stopper plate, which is in a vertical position when suspended by a hanging material, to a substantially horizontal stopping position when the hanging material is cut, and the rear protruding end is placed in the stopper. engage,
It is designed to prevent the swing stop from falling, and the stopper can be a bar-shaped member attached at regular intervals in the vertical direction in front of the leader or a front member of the leader body.

（図面による考案の具体的説明）本考案の一実施例を示す図面において、振れ止
め１は、円環部２と、円環部２の後方に延びる支
脚３と、支脚３の後端両側の後方にそれぞれ突片
４を介して取り付けられたスライダー５とを具
え、円環部２には砂杭造成用中空管（または地盤
攪拌混合処理用回転軸）６が通り、また、スライ
ダー５は砂杭造成用中空管６の昇降を案内するリ
ーダー７の前端両側に設けたカイド８に滑動自在
に係合している。(Specific description of the invention based on the drawings) In the drawings showing an embodiment of the invention, the steady rest 1 includes an annular portion 2, a support leg 3 extending to the rear of the annular portion 2, and a support leg 3 on both sides of the rear end of the support leg 3. The slider 5 is equipped with a slider 5 attached to the rear through a protrusion 4, and a hollow pipe for sand pile construction (or a rotating shaft for ground agitation and mixing treatment) 6 passes through the annular part 2. It is slidably engaged with guides 8 provided on both sides of the front end of a leader 7 that guides the raising and lowering of the hollow pipe 6 for sand pile construction.

支脚３の後端にブラケツト９が上向きに突設さ
れ、これに細長いストツパープレート１０の中間
部が軸１１で支持され、このストツパープレート
１０の一端にはワイヤ等の吊り材１２の支点１３
が設けられている。 A bracket 9 is provided to protrude upward from the rear end of the support leg 3, on which the middle part of an elongated stopper plate 10 is supported by a shaft 11, and at one end of this stopper plate 10 there is provided a fulcrum 13 for a hanging material 12 such as a wire.
is provided.

図示の支点１３は吊り材１２の下端を定着する
孔になつているが、前掲実公昭60−2274号の考案
のようにこの部分に滑車を設けてもよい。 Although the illustrated fulcrum 13 is a hole for fixing the lower end of the hanging member 12, a pulley may be provided at this portion as in the invention of the above-mentioned Utility Model Publication No. 60-2274.

１４はストツパープレート１０の支点１３寄り
の所と支脚３の円環部２寄りの所との間に張設さ
れた引張ばねであり、ストツパープレート１０
は、図に鎖線で示す支点１３を上にした垂直位置
から実線で示す支点１３を前にした略水平の停止
位置まで回動するように、引張ばね１４で付勢さ
れている。 Reference numeral 14 denotes a tension spring tensioned between a portion of the stopper plate 10 near the fulcrum 13 and a portion of the support leg 3 near the annular portion 2;
is biased by a tension spring 14 so as to rotate from a vertical position with the fulcrum 13 facing up, indicated by a chain line in the figure, to a substantially horizontal stop position with the fulcrum 13 in front, indicated by a solid line.

ストツパープレート１０が略水平の停止位置に
回動したとき、ストツパープレート１０の他端
（支点１３の反対端）は後方に突出し、図の場合
はリーダー７の前面に上下方向に一定間隔で取り
付けた棒状材１５に係合するようになつている。 When the stopper plate 10 rotates to a substantially horizontal stop position, the other end of the stopper plate 10 (the end opposite to the fulcrum 13) protrudes rearward, and in the case of the figure, is attached to the front of the leader 7 at regular intervals in the vertical direction. It is designed to engage with the attached rod-shaped member 15.

振り止め１を吊り材１２で吊つているとき、ス
トツパープレート１０は垂直位置にあるが、吊り
材１２に切断事故が発生すると、ストツパープレ
ート１０は引張ばね１４の力で直ちに略水平の停
止位置に回動し、その後方突出端がストツパーで
ある棒状材１５に係合して、振れ止め１の落下が
防止される。 When the swing stopper 1 is suspended by the hanging material 12, the stopper plate 10 is in a vertical position, but if an accident occurs in which the hanging material 12 is cut, the stopper plate 10 is immediately stopped in a substantially horizontal position by the force of the tension spring 14. The steady rest 1 is rotated to this position, and its rear protruding end engages with a rod-shaped member 15 serving as a stopper, thereby preventing the steady rest 1 from falling.

（考案の効果）本考案の装置は以上のようなものであるから、
構造が比較的簡単でありながら、砂杭造成用中空
管等の振れ止めの落下事故を有効に防止すことが
でき、極めて実用的である。(Effect of the invention) Since the device of the invention is as described above,
Although the structure is relatively simple, it can effectively prevent falling accidents of steady rests such as hollow pipes for sand pile construction, and is extremely practical.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の一実施例の説明図であつて、第
１図は平面図、第２図は側面図である。１……振れ止め、３……支脚、１０……ストツ
パープレート、１１……軸、１２……吊り材、１
３……支点、１４……引張ばね、１５……棒状
材。 The drawings are explanatory diagrams of one embodiment of the present invention, with FIG. 1 being a plan view and FIG. 2 being a side view. 1... Steady rest, 3... Support leg, 10... Stopper plate, 11... Shaft, 12... Hanging material, 1
3...Fully point, 14...Tension spring, 15...Bar-shaped material.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

砂杭造成用中空管等の振れ止めの後方に延びる
支脚の後端に、一端に吊り材の支点を設けたスト
ツパープレートの中間部を軸着し、該ストツパー
プレートは、前記支点を上にした垂直位置から支
点を前にした略水平の停止位置まで回動するよう
に引つ張りばねで付勢されており、前記停止位置
に回動したときはその他端が後方のストツパーに
係合する位置に突出するようになつていることを
特徴とする砂杭造成用中空管等振れ止めの落下防
止装置。 The middle part of a stopper plate, which has a fulcrum for a hanging material at one end, is pivoted to the rear end of a support leg extending behind a steady rest such as a hollow pipe for sand pile construction, and the stopper plate has a fulcrum for a hanging material at one end. It is biased by a tension spring so that it rotates from the upward vertical position to a substantially horizontal stopping position with the fulcrum in front, and when it rotates to the stopping position, the other end engages the rear stopper. A fall prevention device for a steady rest such as a hollow pipe for sand pile construction, characterized in that the device is designed to protrude at a position where it fits.