JPH01137395U - - Google Patents

Info

Publication number
JPH01137395U
JPH01137395U JP3289088U JP3289088U JPH01137395U JP H01137395 U JPH01137395 U JP H01137395U JP 3289088 U JP3289088 U JP 3289088U JP 3289088 U JP3289088 U JP 3289088U JP H01137395 U JPH01137395 U JP H01137395U
Authority
JP
Japan
Prior art keywords
ring
steel pipe
soft duct
thrust
steel
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
JP3289088U
Other languages
Japanese (ja)
Other versions
JPH07546Y2 (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 JP1988032890U priority Critical patent/JPH07546Y2/en
Publication of JPH01137395U publication Critical patent/JPH01137395U/ja
Application granted granted Critical
Publication of JPH07546Y2 publication Critical patent/JPH07546Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Description

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

第１図は、本考案の推力緩衝用当輪の使用状況
を示す縦断面図。第２図は、推力緩衝用当輪の正
面図を示す。なお、図中１は推力緩衝用当輪。２
は鋼製の当輪。３は緩衝用ゴム。４は軟質ダクト
。５は鋼管を示す。 FIG. 1 is a longitudinal cross-sectional view showing how the thrust buffering wheel of the present invention is used. FIG. 2 shows a front view of the thrust buffering wheel. In addition, 1 in the figure is a thrust buffering wheel. 2
is a steel wheel. 3 is cushioning rubber. 4 is a soft duct. 5 indicates a steel pipe.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 地中に小口径軟質ダクトを推進埋設する方法で
、発進立坑内で内側鋼管５と該鋼管を被覆するよ
うに外側に設けた軟質ダクト４の尾端に、鋼管５
部にはリング状の鋼製の当輪２が当接し、軟質ダ
クト４部には鋼製の当輪２部に着設したリング状
の緩衝用ゴム３が当接し、推進ジヤツキ７の推力
を鋼管５および軟質ダクト４に伝達するよう構成
したことを特徴とする推力緩衝用当輪。 In this method, a small-diameter soft duct is propelled and buried underground, and a steel pipe 5 is installed in the starting shaft at the tail end of the inner steel pipe 5 and the soft duct 4 provided on the outside so as to cover the steel pipe.
A ring-shaped steel ring 2 contacts the soft duct 4, and a ring-shaped buffer rubber 3 attached to the steel ring 2 contacts the soft duct 4 to absorb the thrust of the propulsion jack 7. A thrust buffering ring characterized in that the thrust is transmitted to a steel pipe 5 and a soft duct 4.
JP1988032890U 1988-03-12 1988-03-12 Thrust buffering wheels Expired - Lifetime JPH07546Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988032890U JPH07546Y2 (en) 1988-03-12 1988-03-12 Thrust buffering wheels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988032890U JPH07546Y2 (en) 1988-03-12 1988-03-12 Thrust buffering wheels

Publications (2)

Publication Number Publication Date
JPH01137395U true JPH01137395U (en) 1989-09-20
JPH07546Y2 JPH07546Y2 (en) 1995-01-11

Family

ID=31259488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988032890U Expired - Lifetime JPH07546Y2 (en) 1988-03-12 1988-03-12 Thrust buffering wheels

Country Status (1)

Country Link
JP (1) JPH07546Y2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438610A (en) * 1977-09-01 1979-03-23 Kido Kensetsu Kogyo Method of propelling and burying small aperture soft duct
JPS54144708A (en) * 1978-04-30 1979-11-12 Katsuma Kazunari Crack forming preventive device in case when laying hume pipe
JPS6026885A (en) * 1983-07-25 1985-02-09 電気化学工業株式会社 Concrete propulsive pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438610A (en) * 1977-09-01 1979-03-23 Kido Kensetsu Kogyo Method of propelling and burying small aperture soft duct
JPS54144708A (en) * 1978-04-30 1979-11-12 Katsuma Kazunari Crack forming preventive device in case when laying hume pipe
JPS6026885A (en) * 1983-07-25 1985-02-09 電気化学工業株式会社 Concrete propulsive pipe

Also Published As

Publication number Publication date
JPH07546Y2 (en) 1995-01-11

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