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131. 发明专利

JPH05106386A CONNECTING/BURYING DEVICE FOR FITTING PIPE TO BURIED PIPE 失效
公开(公告)号：JPH05106386A
公开(公告)日：1993-04-27
申请号：JP26649991
申请日：1991-10-15
申请人： SEKISUI CHEMICAL CO LTD , ISEKI TORY TECH INC , SANWA KIZAI CO LTD
发明人： KITAYAMA YASUSHI , SAKAMOTO KAZUYA , HAMANO MAMORU
IPC分类号： E21B7/00 , F16L1/024 , F16L41/08
摘要： PURPOSE:To automatically connect and bury a fitting pipe to an existing buried pipe in one process. CONSTITUTION:A drive section 2 angle-adjustable toward a buried pipe 16 buried under the ground, a rotary rod 3 connected to the drive section 2, rotatively driven, and coupled with a fitting pipe 12 on the outer periphery, and an excavating head 4 fitted at the tip of the rotary rod 3 are provided. The excavating head 4 has a buried pipe boring cutter 18 boring a fitting pipe connecting hole 17 on the side face of the buried pipe 16 and a cutter reciprocating system 19 advancing the cutter 18 to the boring position. A fork- like buried pipe clamper 38 having the inner width corresponding to the outer diameter of the buried pipe 16 is provided as an accessory part.

132. 发明专利

JPH0526376A CONNECTING METHOD OF BRANCH PIPE TO MAIN PIPE 失效
公开(公告)号：JPH0526376A
公开(公告)日：1993-02-02
申请号：JP17826891
申请日：1991-07-18
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： F16L1/024 , F16L41/08
摘要： PURPOSE:To provide a method of connecting a branch pipe to a main pipe buried underground, which method does not give a reduction of the dead water property even though a ground displacement or the like is generated after the connection, and carry out execution easily. CONSTITUTION:After a locking piece 5 of a coupling 1 side is inserted in the connecting hole 2a of a main pipe 2, the end 4a of a branch pipe 4 is fitted to the end 3b of a coupling main body 3, and thereby, the locking piece 5 is pulled to the coupling main body 3 side through a movable metal 6 and a wire 7 in the coupling 1. And a rubber packing 9 is held between the main pipe 2 and one end 3a of the coupling main body 3 while the tip of the locking piece 5 is being locked to the hole edge of the connecting hole 2a.

133. 发明专利

JPH0510489A LATERAL FOR FORMING BRANCH PIPE 失效
公开(公告)号：JPH0510489A
公开(公告)日：1993-01-19
申请号：JP16688691
申请日：1991-07-08
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： E03F3/04 , F16L1/024 , F16L41/08
摘要： PURPOSE:To provide a lateral for forming a branch pipe which can be simply joined to a main pipe and has good water stop performance. CONSTITUTION:A lateral 1 includes a fitting portion 3 fitted in a fitting hole 81 bored in a main pipe 8 at one end thereof. The fitting portion 3 is constructed so that at the time of fitting in the fitting hole 81, a projecting portion 6 locked on the inner wall surface 8a of the main pipe 8 to prevent its separation from the main pipe 8 is formed on the outer peripheral surface thereof. Further, an elastic material 7 is installed and compressed between a step portion 31 formed on the lateral side end portion of the fitting portion 3 and the main pipe outer wall surface 8b of the periphery of the fitting hole for sealing a gap 9 formed between the fitting portion 3 and the fitting hole 81.

134. 发明专利

JPH04333722A METHOD FOR JOINTING PROPELLER PIPE AND EXISTENT MAN-HOLE TO EACH OTHER 失效
公开(公告)号：JPH04333722A
公开(公告)日：1992-11-20
申请号：JP10149891
申请日：1991-05-07
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAHASHI NAOKI , KITAYAMA YASUSHI
IPC分类号： E02D29/12
摘要： PURPOSE:To obtain a joining method excellent in workability for enabling a propeller pipe and an existent man-hole to each other, with simple work. CONSTITUTION:Into the bored hole 8a of an existent man-hole, the pipe end section of a propeller pipe 7 is inserted, and in a state that a ring-shaped body 1 is set in a void between said hole 8a and pipe end section, foam resin 4 is injected into the ring-shaped body 1 and is foaming-hardened. The ring-shaped body 1 is formed with expandable and shrinkable tubular rubber having a hollow section 1a, and when the hollow section 1a is filled up with the foam resin 4, then it is expanded along with its foaming. As a result, a gap between the bored hole 8a and the propeller pipe 7 is filled up with the ring-shaped body 1 without a void, and is sealed, and the hole 8a and the pipe 7 are joined to eachother in a specified state.

135. 发明专利

JPH04232026A METHOD OF LINING EXISTING PIPE 失效
公开(公告)号：JPH04232026A
公开(公告)日：1992-08-20
申请号：JP40866690
申请日：1990-12-28
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI , KITAHASHI NAOKI
IPC分类号： B29C63/32 , F16L1/00
摘要： PURPOSE:To make the outer diameter of spiral pipe to be inserted in existing pipe smaller when the existing pipe is lined by the spiral-pipe. CONSTITUTION:Band-like body is spirally wound so as to mutually oppose side edge parts to each other. Small diameter spiral pipe is produced by mutually bonding opposing side edge parts to each other with adhesive 40 under the condition that wire material 30 is interposed between the side edge parts. When the wire material 30 is removed from the spiral pipe after the manufactured spiral pipe is inserted into an existing pipe, the adhesive 40 is cut in pieces, resulting in diametrically expanding the spiral pipe. The inner peripheral surface of the existing pipe is lined by the diametrically expanded spiral pipe.

136. 发明专利

JPH04232024A INDUSTRIAL LINING METHOD OF EXISTING PIPE 失效
公开(公告)号：JPH04232024A
公开(公告)日：1992-08-20
申请号：JP40866490
申请日：1990-12-28
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： B29C63/32 , F16L1/00
摘要： PURPOSE:To keep the outer diameter of spiral pipe to be inserted in existing pipe smaller than the inner diameter of the existing pipe when the existing pipe is lined by the spiral pipe. CONSTITUTION:Band-like body is spirally wound so as to mutually oppose side edge parts to each other. Spiral pipe is manufactured by interposing band material 30, on both sides of which adhesive 40 is applied, between respective opposing side edge parts. By removing the band material 30 from the spiral pipe after the manufactured spiral pipe is inserted in the existing pipe, the spiral pipe is expanded diametrically so as to line the inner peripheral surface of the existing pipe.

137. 发明专利

JPH04232023A INDUSTRIAL LINING METHOD OF EXISTING PIPE 失效
公开(公告)号：JPH04232023A
公开(公告)日：1992-08-20
申请号：JP40866390
申请日：1990-12-28
申请人： SEKISUI CHEMICAL CO LTD
发明人： MORIKAWA KENICHI , KITAYAMA YASUSHI
IPC分类号： B29C63/32 , B29L23/00 , F16L1/00
摘要： PURPOSE:To make the stable performance of diametrically expanding operation possible by a method wherein the separation speed of wire material from spiral pipe is made higher when the thrusting force applied to band-like body reaches a pre-set upper limit value at the diametrically expanding of the spiral pipe. CONSTITUTION:Spiral pipe 10' is produced by bringing the side edge parts of band-like body 10 mutually under high frictionally resistant condition with wire material and passed through a drainpipe 81. The resultant spiral pipe 10' is diametrically expanded by separating the wire material as the thrusting force is applied to the band-like body 10 under the condition that the tip part of the band-like body is fixed. The wire material is separated at high speed from the spiral pipe 10' when the thrusting force applied to the band-like body 10 exceeds the predetermined upper limit value. Said upper limit value is successively corrected in corresponding to the diametrically expanding position, which is determined on the basis of the wound length of the wire material, of the spiral pipe 10' to the existing drainpipe 81 so as to become proper upper limit value in response to the diametrically expanding position. Thus, the diametrically expanding operation can be performed stably.

138. 发明专利

JPH0469478A LINING METHOD FOR EXISTING TUBE 失效
公开(公告)号：JPH0469478A
公开(公告)日：1992-03-04
申请号：JP18211590
申请日：1990-07-09
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： F16L1/00 , B29C63/34 , B29L23/00 , F16L1/024
摘要： PURPOSE:To smoothly enlarge the diameter of a helical tube with certainty by constituting a wire rod for locking side edge portions of a band-like body in such a manner as to be released from a helical tube at a high speed when a thrust force applied to the band-like body reaches an upper limit value, and correcting the upper limit value if a difference between the maximum of the thrust force and the minimum thereof exceeds a predetermined value. CONSTITUTION:The side edge portions of a band-like body 10 are locked by a wire rod 30, thus obtaining a helical tube, 10' which is inserted into a sewer 81 and the diameter of which is enlarged. In enlarging the diameter, an oil pressure of the tube manufacturing machine 20 is increased in the case of a large frictional coefficient of a band-like body 10. However, the oil pressure may not be increased because of the sliding of the bank-like body 10 locked in the wire rod 30 and the non-released wire rod 30. In this state, a speed of axial motion of a portion to be enlarged become higher than a releasing speed of the wire rod 30 from the helical tube 10', and a truncated portion L becomes short and a load exerted on the tube manufacturing machine 20 is increased. At last, tube manufacturing becomes impossible. When control of a difference between the maximum of the thrust force applied to the bank-like body 10 and the minimum thereof reaches its limit, the upper limit value of the thrust force is corrected to a smaller value. Therefore, the releasing speed of the wire rod 30 from the helical tube 10' is increased and the length of the truncated portion L returns to a normal length.

139. 发明专利

JPH0459224A TUBE MANUFACTURING MACHINE 失效
公开(公告)号：JPH0459224A
公开(公告)日：1992-02-26
申请号：JP16941590
申请日：1990-06-27
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI
IPC分类号： B29C53/76 , B29C53/78 , B29L23/00
摘要： PURPOSE:To manufacture a tube manufacturing machine for manufacturing a helical tube without damaging reinforcing ribs of a belt-shaped body by providing flange sections inserted between respective reinforcing ribs and the outer peripheral surfaces of flange section in contact with a base on either of a couple of rollers providing thrust force to the belt-shaped body and knurling on the outer peripheral surfaces of flange sections. CONSTITUTION:A belt-shaped body 40 is passed through a couple of tension rollers 18 and inserted between a first drive roller 15 mounted on a frame 10 and a first drive roller 21 of a mandrel 20 facing the drive roller 15. A flange section 15a of the drive roller 21 is inserted between reinforcing ribs 49 of the belt-shaped body 40, and a knurled section on the outer peripheral surface of the flange section 15a is brought into contact with the back face of a base 42. Thrust force is applied to the base 42 by said knurled section to move forward the whole of belt-shaped body 40. Thus the thrust force can be applied to the belt-shaped body securely without damaging the reinforcing ribs positioned on the outer peripheral side of the belt-shaped body to be formed into a helical tube to manufacture securely the helical tube.

140. 发明专利

JPH0447044A LINING WORK CONTROL DEVICE FOR LAID PIPE 失效
公开(公告)号：JPH0447044A
公开(公告)日：1992-02-17
申请号：JP15611690
申请日：1990-06-14
申请人： SEKISUI CHEMICAL CO LTD
发明人： NAKAJIMA KOSHIROU , MORIKAWA KENICHI , KITAYAMA YASUSHI
IPC分类号： E03F7/00 , B29C63/32
摘要： PURPOSE:To surely enlarge a spiral pipe in diameter by interposing a wire between the side peripheral sections of mutually adjacent band shaped bodies, forming a spiral pipe by a pipe manufacturing means mutually meshing the side peripheral sections, and thereby enlarging the spiral pipe while the spiral pipe is inserted into an existing pipe. CONSTITUTION:The side peripheral section of mutually adjacent band shaped bodies 10 are mutually meshed, and a wire 30 is continuously locked in order that the meshed portion is increased in frictional resistance, so that a spiral pipe is thereby formed. The spiral pipe 10a is inserted into an existing pipe 81 in order so as to be advanced, the tip end of the spiral pipe 10a is thereby fixed onto the existing pipe 81 thereafter. In the second place, propulsion force is imparted to the band shaped body 10 forming the spiral pipe 10a, so that the wire 30 is thereby separated at a specified speed from the spiral pipe 10b. Following which, the spiral pipe 10a is enlarged in diameter while the spiral pipe 10a is being rotated with the side peripheral sections of the respective band shaped bodies 10 slidably moved out of the section from which the wire 30 is separated. By this constitution, the deteriorated existing pipe 81 can thereby be recycled.

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