JPS6146985U - Drop-prevention lifting device for derrick cranes - Google Patents

Drop-prevention lifting device for derrick cranes

Info

Publication number
JPS6146985U
JPS6146985U JP13163584U JP13163584U JPS6146985U JP S6146985 U JPS6146985 U JP S6146985U JP 13163584 U JP13163584 U JP 13163584U JP 13163584 U JP13163584 U JP 13163584U JP S6146985 U JPS6146985 U JP S6146985U
Authority
JP
Japan
Prior art keywords
pedestal
lifting device
oscillator
rail
movable pulley
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
Application number
JP13163584U
Other languages
Japanese (ja)
Inventor
勝 青木
Original Assignee
三和テッキ株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三和テッキ株式会社 filed Critical 三和テッキ株式会社
Priority to JP13163584U priority Critical patent/JPS6146985U/en
Publication of JPS6146985U publication Critical patent/JPS6146985U/en
Pending legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は全体の正面図、第２図は一部正面図、第３図は
同平面図である。 １・・・・・・架台、２・・・・・・支柱、２ａ，２ｂ
・・・・・・ユニット柱、３・・・・・・昇降枠、４・
・・・・・動滑車、５・・・・・・定滑車、６・・・・
・・ロープ、７・・・・・・揺動子、８・・・・・・ば
ね、９・・・・・・レスト、１０・・・・・・レール、
Ｗ・・・・・・ウインチ。FIG. 1 is an overall front view, FIG. 2 is a partial front view, and FIG. 3 is a plan view of the same. 1... Frame, 2... Support, 2a, 2b
...Unit pillar, 3... Lifting frame, 4.
...Moving pulley, 5...Fixed pulley, 6...
...rope, 7 ... rocker, 8 ... spring, 9 ... rest, 10 ... rail,
W...Winch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] デリッククレーンの支柱を包囲するように地上に直立し
て組立てられた架台と、この架台の内側にあって前記支
柱の外周へ昇降自在かつ係脱可能に被挿された昇降枠と
、昇降枠に取付けられた動滑車と、この動滑車および前
記架台上部の定滑車に掛回されウインチに巻止められた
ロープとを具備した支柱せり上げ装置において、前記架
台に縦方向にレールが取付けられ、前記昇降枠には垂直
方向に揺動自在にかつ上方揺動時に先端がレールと係合
可能に揺動子が軸着され、揺動子と昇降枠との間には揺
動子′を上方揺動方向に付勢するばねが鏝けられ、常時
は自重により揺動子が下傾状態にあるが昇降枠の急降下
時には揺動子を上方揺動させてそれの先端とレールとを
係合させるようばねの強さが設定されていることを特徴
とするデリッククレーンの落下防止型せり上げ装置。A pedestal that is assembled upright on the ground to surround the derrick crane's support, an elevator frame that is inside the pedestal and is inserted into the outer periphery of the support in a manner that allows it to be raised and lowered as well as to be removable; In a prop lifting device comprising a movable pulley attached to the movable pulley and a rope that is wound around the movable pulley and a fixed pulley on the upper part of the pedestal and is wound around a winch, a rail is attached to the pedestal in the vertical direction, An oscillator is pivotally attached to the elevating frame so that it can freely swing in the vertical direction and its tip can engage with the rail during upward swinging. A spring biased in the direction of movement is applied, and the oscillator is normally tilted downward due to its own weight, but when the lifting frame suddenly descends, the oscillator is swung upward and its tip engages with the rail. A fall prevention type lifting device for a derrick crane, characterized by having a set spring strength.
JP13163584U 1984-08-29 1984-08-29 Drop-prevention lifting device for derrick cranes Pending JPS6146985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13163584U JPS6146985U (en) 1984-08-29 1984-08-29 Drop-prevention lifting device for derrick cranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13163584U JPS6146985U (en) 1984-08-29 1984-08-29 Drop-prevention lifting device for derrick cranes

Publications (1)

Publication Number Publication Date
JPS6146985U true JPS6146985U (en) 1986-03-28

Family

ID=30690213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13163584U Pending JPS6146985U (en) 1984-08-29 1984-08-29 Drop-prevention lifting device for derrick cranes

Country Status (1)

Country Link
JP (1) JPS6146985U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4844942U (en) * 1971-09-29 1973-06-12
JPS5345055A (en) * 1976-10-04 1978-04-22 Hitachi Ltd Apparatus for controlling volume of excessive sludge to be withdrawn
JPS57102493A (en) * 1980-12-16 1982-06-25 Hitachi Construction Machinery Climbing crane for building steel tower

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4844942U (en) * 1971-09-29 1973-06-12
JPS5345055A (en) * 1976-10-04 1978-04-22 Hitachi Ltd Apparatus for controlling volume of excessive sludge to be withdrawn
JPS57102493A (en) * 1980-12-16 1982-06-25 Hitachi Construction Machinery Climbing crane for building steel tower

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