JPS623856U - - Google Patents

Info

Publication number
JPS623856U
JPS623856U JP9468685U JP9468685U JPS623856U JP S623856 U JPS623856 U JP S623856U JP 9468685 U JP9468685 U JP 9468685U JP 9468685 U JP9468685 U JP 9468685U JP S623856 U JPS623856 U JP S623856U
Authority
JP
Japan
Prior art keywords
bucket
jack
hydraulic cylinder
opening
cylinder
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
JP9468685U
Other languages
English (en)
Other versions
JPH0348280Y2 (ja
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 JP9468685U priority Critical patent/JPH0348280Y2/ja
Publication of JPS623856U publication Critical patent/JPS623856U/ja
Application granted granted Critical
Publication of JPH0348280Y2 publication Critical patent/JPH0348280Y2/ja
Expired legal-status Critical Current

Links

Description

【図面の簡単な説明】
第１図は本考案落石防止器の斜視図、第２図は
落石防止器をマンホール内にセツトした状態の斜
視図である。 １……バケツト、２……剛性ベルト、３……伸
縮シリンダー、４……油圧シリンダー、５……油
圧ジヤツキ、６……吊りベルト。

Claims (1)

    【実用新案登録請求の範囲】
  1. 上部に円形開口を有し下部を袋状となしたバケ
    ツト１、バケツト１の開口部内周に張設する剛性
    ベルト２、並びに中央から外方向へ２本の伸縮シ
    リンダー３及び１本の油圧シリンダー４を延設し
    たジヤツキ５からなり、当該ジヤツキ５の伸縮シ
    リンダー３及び油圧シリンダー４の先端部を剛性
    ベルト２を介してバケツト１の開口部内周に当接
    し、油圧シリンダー４の伸長により外方へ各々の
    伸縮シリンダー３を押圧して、ジヤツキ５により
    バケツト１をマンホール内周縁に押圧固定するこ
    とを特徴とするマンホール工事用落石防止器。
JP9468685U 1985-06-22 1985-06-22 Expired JPH0348280Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9468685U JPH0348280Y2 (ja) 1985-06-22 1985-06-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9468685U JPH0348280Y2 (ja) 1985-06-22 1985-06-22

Publications (2)

Publication Number Publication Date
JPS623856U true JPS623856U (ja) 1987-01-10
JPH0348280Y2 JPH0348280Y2 (ja) 1991-10-15

Family

ID=30653385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9468685U Expired JPH0348280Y2 (ja) 1985-06-22 1985-06-22

Country Status (1)

Country Link
JP (1) JPH0348280Y2 (ja)

Also Published As

Publication number Publication date
JPH0348280Y2 (ja) 1991-10-15

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