JPS56156306A - Rubber dam - Google Patents

Rubber dam

Info

Publication number
JPS56156306A
JPS56156306A JP5707480A JP5707480A JPS56156306A JP S56156306 A JPS56156306 A JP S56156306A JP 5707480 A JP5707480 A JP 5707480A JP 5707480 A JP5707480 A JP 5707480A JP S56156306 A JPS56156306 A JP S56156306A
Authority
JP
Japan
Prior art keywords
rubber dam
outside
hose
drain
dam
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
JP5707480A
Other languages
Japanese (ja)
Inventor
Takeo Muramatsu
Mamoru Kurihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP5707480A priority Critical patent/JPS56156306A/en
Publication of JPS56156306A publication Critical patent/JPS56156306A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To discharge drain through a communication member to the outside from a rubber dam where drain is all stored by providing the communication member whose one end is positioned in the rubber dam and the other is outside of the rubber dam.
CONSTITUTION: An intorduction pipe 4 to be inserted into a rubber dam 1 is opened inside the rubber dam 1 at its one end, and also buried in the slope of a river bank at the other end in such a way as to open the other end outside of the rubber dam 1. A weight 6 is provided to one end of a hose 3 to be inserted into the rubber dam 1, and a valve 5 is provided to the other end. The rubber dam 1 is erected by sending a fluid, e.g., compressed air, into its inside through an air supply and discharge pipe 2, whereupon drain stored at the bottom of the rubber dam 1 is discharged to the outside through the hose 3 according to the internal pressure of the rubber dam when the valve 5 provided at the end of the hose 3 is opened.
COPYRIGHT: (C)1981,JPO&Japio
JP5707480A 1980-05-01 1980-05-01 Rubber dam Pending JPS56156306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5707480A JPS56156306A (en) 1980-05-01 1980-05-01 Rubber dam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5707480A JPS56156306A (en) 1980-05-01 1980-05-01 Rubber dam

Publications (1)

Publication Number Publication Date
JPS56156306A true JPS56156306A (en) 1981-12-03

Family

ID=13045304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5707480A Pending JPS56156306A (en) 1980-05-01 1980-05-01 Rubber dam

Country Status (1)

Country Link
JP (1) JPS56156306A (en)

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