JPH045481U - - Google Patents

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Publication number
JPH045481U
JPH045481U JP4442890U JP4442890U JPH045481U JP H045481 U JPH045481 U JP H045481U JP 4442890 U JP4442890 U JP 4442890U JP 4442890 U JP4442890 U JP 4442890U JP H045481 U JPH045481 U JP H045481U
Authority
JP
Japan
Prior art keywords
boom
telescopic
hook
tip
stage
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.)
Granted
Application number
JP4442890U
Other languages
Japanese (ja)
Other versions
JP2504606Y2 (en
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 filed Critical
Priority to JP1990044428U priority Critical patent/JP2504606Y2/en
Publication of JPH045481U publication Critical patent/JPH045481U/ja
Application granted granted Critical
Publication of JP2504606Y2 publication Critical patent/JP2504606Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

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

第１図乃至第４図は本考案にかかるフツク平行
機構を備えた多段ブームの実施例を示し、第１図
は多段ブームの縮退時におけるワイヤの配設状態
を示す側面図、第２図は多段ブームの伸長時にお
けるワイヤの配設状態を示す側面図、第３図及び
第４図は各シーブの配設状態を示す拡大の正面図
、第５図及び第６図は従来のフツク平行機構を備
えた多段ブームを示し、第５図は多段ブームの縮
退時におけるワイヤの配設状態を示す側面図、第
６図は多段ブームの伸長時におけるワイヤの配設
状態を示す側面図である。 １……多段ブーム、１１……基端ブーム、１２
……中間ブーム（伸縮ブーム）、１３……先端ブ
ーム（伸縮ブーム）、２……フツク、３……ウイ
ンチ装置、５……ワイヤ、４４，４６，４８……
シーブ。 1 to 4 show an embodiment of a multi-stage boom equipped with a hook parallel mechanism according to the present invention, FIG. 1 is a side view showing the wire arrangement state when the multi-stage boom is retracted, and FIG. A side view showing the arrangement of the wires when the multi-stage boom is extended, Figures 3 and 4 are enlarged front views showing the arrangement of each sheave, and Figures 5 and 6 are the conventional hook parallel mechanism. FIG. 5 is a side view showing how the wires are arranged when the multi-stage boom is retracted, and FIG. 6 is a side view showing how the wires are arranged when the multi-stage boom is extended. 1...Multi-stage boom, 11...Base end boom, 12
...Middle boom (telescopic boom), 13... Tip boom (telescopic boom), 2... Hook, 3... Winch device, 5... Wire, 44, 46, 48...
Seeb.

Claims (1)

【実用新案登録請求の範囲】 １ ブーム本体と、該ブーム本体内に伸縮自在に
嵌挿された伸縮ブームとから構成された２段ブー
ム、もしくはブーム本体内に伸縮自在に嵌挿され
た複数個の伸縮ブームが同時に伸縮作動する同時
伸縮方式の多段ブームにおいて、 前記ブーム本体の基端部もしくは基端部下方に
は、ウインチ装置が設けられ、該ウインチ装置に
巻回されたワイヤは、ブーム本体の外側面に沿つ
てブーム本体の先端に導かれて折り返され、さら
にブーム本体と伸縮ブームとの間で折り返された
後、伸縮ブームの外側面に沿つてこの伸縮ブーム
の先端部に導かれ、伸縮ブームの先端部とフツク
との間で巻回された後、該ワイヤの端部がフツク
もしくは伸縮ブームの先端部に止着されたことを
特徴とするフツク平行機構を備えた多段ブーム。 ２ 請求項１記載のフツク平行機構を備えた多段
ブームにおいて、前記ワイヤはブーム本体及び伸
縮ブームにそれぞれ設けられたシーブを介して配
設され、ブーム本体の先端部には、シーブが傾斜
して配設されたことを特徴とするフツク平行機構
を備えた多段ブーム。 ３ 請求項１記載のフツク平行機構を備えた多段
ブームにおいて、伸縮ブームの先端部には、２個
のシーブが左右に配設され、一方のシーブが他方
のシーブよりも下方にずれて配設されたことを特
徴とするフツク平行機構を備えた多段ブーム。[Scope of Claim for Utility Model Registration] 1. A two-stage boom consisting of a boom body and a telescopic boom that is telescopically inserted into the boom main body, or a plurality of telescopic booms that are telescopically inserted into the boom main body. In a simultaneous telescopic multi-stage boom in which two telescopic booms extend and contract at the same time, a winch device is provided at or below the base end of the boom main body, and a wire wound around the winch device is connected to the boom main body. is guided to the tip of the boom body along the outer surface of the boom body and folded back, further folded back between the boom body and the telescopic boom, and then guided to the tip of the telescopic boom along the outer surface of the telescopic boom, A multi-stage boom equipped with a hook parallel mechanism, characterized in that the end of the wire is fixed to the hook or the tip of the telescopic boom after being wound between the tip of the telescopic boom and the hook. 2. In the multi-stage boom equipped with a hook parallel mechanism according to claim 1, the wire is disposed through sheaves provided on the boom body and the telescopic boom, respectively, and the sheave is inclined at the tip of the boom body. A multi-stage boom equipped with a parallel hook mechanism. 3. In the multi-stage boom equipped with a hook parallel mechanism according to claim 1, two sheaves are disposed on the left and right at the tip of the telescoping boom, and one sheave is disposed downwardly relative to the other sheave. A multi-stage boom equipped with a hook parallel mechanism.
JP1990044428U 1990-04-24 1990-04-24 Multi-stage boom with hook parallel mechanism Expired - Lifetime JP2504606Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990044428U JP2504606Y2 (en) 1990-04-24 1990-04-24 Multi-stage boom with hook parallel mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990044428U JP2504606Y2 (en) 1990-04-24 1990-04-24 Multi-stage boom with hook parallel mechanism

Publications (2)

Publication Number Publication Date
JPH045481U true JPH045481U (en) 1992-01-20
JP2504606Y2 JP2504606Y2 (en) 1996-07-10

Family

ID=31557722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990044428U Expired - Lifetime JP2504606Y2 (en) 1990-04-24 1990-04-24 Multi-stage boom with hook parallel mechanism

Country Status (1)

Country Link
JP (1) JP2504606Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0577189U (en) * 1992-03-27 1993-10-19 新明和工業株式会社 Multi-stage telescopic boom with polygonal cross section

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59137283U (en) * 1983-03-04 1984-09-13 株式会社多田野鉄工所 Crane lifting mechanism with boom
JPS6019592U (en) * 1983-07-15 1985-02-09 株式会社　多田野鉄工所 Simultaneous telescopic boom hook lifting device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59137283U (en) * 1983-03-04 1984-09-13 株式会社多田野鉄工所 Crane lifting mechanism with boom
JPS6019592U (en) * 1983-07-15 1985-02-09 株式会社　多田野鉄工所 Simultaneous telescopic boom hook lifting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0577189U (en) * 1992-03-27 1993-10-19 新明和工業株式会社 Multi-stage telescopic boom with polygonal cross section

Also Published As

Publication number Publication date
JP2504606Y2 (en) 1996-07-10

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term