JP5493786B2 - Rectification covering and manufacturing method thereof - Google Patents

Description

  The present invention relates to a rectifying cover and a method for manufacturing the same, and more particularly to a rectifying cover having improved durability and a method for manufacturing the same.

  Conventionally, when a device is installed by forming a recess on the side wall of a structure used on or under water, for example, when a pressure chamber is formed on an observation ship or a ship and equipped with a sonar, the recess By covering the opening with a rectifying cover, the hydraulic resistance is reduced while maintaining the pressure difference between the inside and the outside. As such a rectifying cover, for example, Patent Document 1 proposes a rectifying cover formed by tensioning and fixing a rubber sheet in which a reinforcing layer is embedded on a metal frame that is detachably attached to a peripheral portion of a pressure chamber. ing.

  However, in the rectifying cover of Patent Document 1, since the rubber sheet is mechanically fixed to the crosspiece (intermediate beam) of the frame body, the metal connection fitting is vulcanized and embedded in the rubber sheet. There is a possibility that a shearing force is generated in the connection fitting due to the tensile force repeatedly applied in the inner and outer directions of the sheet and peels off from the rubber sheet. When the connection fitting is peeled off, the rubber sheet is detached from the frame, so that the pressure difference inside and outside the pressure chamber becomes large, adversely affects the performance of the device, and the hydraulic resistance of the structure increases.

Registered Utility Model No. 2504042

  An object of the present invention is to provide a rectifying cover with improved durability and a method for manufacturing the same.

  The rectifying cover of the first invention that achieves the above object is provided in an outer frame that abuts the peripheral edge of the opening of the recess formed on the side wall of the structure used on or in water, and is arranged in a lattice pattern in the outer frame. A rubber sheet in which a reinforcing layer in which reinforcing fibers are aligned is embedded in a frame made of the intermediate beam is fixed by tensioning the frame so that the reinforcing fibers are along the longitudinal direction of the frame. In the rectifying cover, a plurality of slits are formed in the intermediate beam that intersects the reinforcing fiber in the intermediate beam so as to be alternately stepped in the extending direction of the intermediate beam, and the reinforcing fiber passes through the slit. It is characterized by doing so.

The rectifying cover of the second invention that achieves the above object is provided in an outer frame that comes into contact with the peripheral edge of the opening of the recess formed on the side wall of the structure used on or in water, and is arranged in a lattice pattern in the outer frame. A rubber sheet in which a reinforcing layer in which reinforcing fibers are aligned is embedded in a frame made of the intermediate beam is fixed by tensioning the frame so that the reinforcing fibers are along the longitudinal direction of the frame. In the rectifying cover,
The reinforcing fiber is sandwiched and fixed to an intermediate beam that intersects with the reinforcing fiber among the intermediate beams.

A method of manufacturing a rectifying cover according to a third aspect of the present invention that achieves the above object comprises: an outer frame that is in contact with an opening peripheral edge of a recess formed on a side wall of a structure portion that is used on or in water; and a lattice pattern in the outer frame. A rubber sheet in which a reinforcing layer in which reinforcing fibers are aligned is embedded in a frame composed of an intermediate beam disposed in the frame is tensioned to the frame so that the reinforcing fibers are along the longitudinal direction of the frame. In a method of manufacturing a fixed rectifying cover, a reinforcing fiber passes through a slit of the intermediate beam through a metal frame having an intermediate beam having a plurality of slits formed so as to be stepped alternately in the longitudinal direction. And attaching the reinforcing layer in such a manner that both sides of the reinforcing layer are covered with unvulcanized rubber to form a rubber sheet, the rubber sheet is vulcanized, and the vulcanized rubber sheet is tensioned before the frame body It is characterized by being fixed to.

According to a fourth aspect of the present invention for achieving the above-described object, there is provided a rectifying cover manufacturing method comprising: an outer frame abutting against an opening peripheral edge of a recess formed on a side wall of a structure portion used on or in water; A rubber sheet in which a reinforcing layer in which reinforcing fibers are aligned is embedded in a frame composed of an intermediate beam disposed in the frame is tensioned to the frame so that the reinforcing fibers are along the longitudinal direction of the frame. In the method of manufacturing a fixed rectifying cover , a reinforcing layer is attached to a metal frame having an intermediate beam so that reinforcing fibers are sandwiched between the intermediate beam and the plate, and both sides of the reinforcing layer are not yet attached. A rubber sheet is formed by covering with vulcanized rubber, the rubber sheet is vulcanized, and the vulcanized rubber sheet is tensioned and then fixed to the frame.

  According to the rectifying cover of the first and second inventions, the reinforcing fiber passes through the slit formed so as to be alternately stepped in the longitudinal direction of the intermediate beam intersecting with the reinforcing fiber, or the intermediate beam is reinforced. Since the fiber is sandwiched between the plates, it is fixed, so there is no need to embed a connection fitting for fixing the rubber sheet to the intermediate beam in the rubber sheet, and resistance to the tensile force generated in the inner and outer directions of the rubber sheet. Therefore, the durability of the rectifying cover can be improved.

  Further, according to the method of manufacturing the rectifying cover of the third and fourth inventions, the reinforcing fibers pass through the slits formed so as to be alternately stepped in the longitudinal direction of the intermediate beam intersecting the reinforcing fibers in the frame. Or attach the reinforcing layer so that the reinforcing fiber is sandwiched between the plates with the intermediate beam, coat the unvulcanized rubber on both sides of the reinforcing layer to form a rubber sheet, vulcanize the rubber sheet, Since the rubber sheet after vulcanization is tensioned and fixed to the frame, a rectifying cover with improved durability can be manufactured.

It is a perspective view of the outer surface side of the rectification | straightening cover which consists of embodiment of 1st or 2nd invention. It is a perspective view by the side of the inner surface of the rectifying cover which consists of embodiment of the 1st or 2nd invention. It is a partial expansion perspective view of the rectification covering which consists of an embodiment of the 1st invention. It is a partial expansion perspective view of the rectification covering which consists of an embodiment of the 2nd invention.

Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2 show a rectifying cover according to an embodiment of the first or second invention.

  This rectifying cover 1 is tensioned so as to cover the frame 2 and a metal frame 2 that is detachably attached to the opening of the recess formed on the side wall of the structure used on or under water. The rubber sheet 3 is attached. The metal frame 2 is composed of outer frames 4A and 4B that are in contact with the peripheral edge of the opening of the recess, and a plurality of intermediate beams 5A and 5B arranged in a lattice pattern in the outer frames 4A and 4B. The outer frames 4A and 4B and the intermediate beams 5A and 5B have the same outer curvature as the outer surface shape including the concave portion of the structure.

  The rubber sheet 3 is a sheet-like rubber body such as chloroprene rubber in which a reinforcing layer 7 formed by aligning reinforcing fibers 6 made of rubberized metal wires or organic fibers is embedded. The rubber sheet 3 is set on the frame body 2 so that the reinforcing fibers 6 are parallel to the longitudinal direction of the frame body 2 (X direction shown in FIGS. 1 and 2), and is pulled and tensioned in the longitudinal direction. Fixed.

  In such a rectifying cover 1, the reinforcing layer 7 of the rubber sheet in the rectifying cover of the first invention has a slit 8 formed so as to penetrate the intermediate beam 5B intersecting with the reinforcing fiber 6, as shown in FIG. It has come to pass. A plurality of slits 8 in the intermediate beam 5B are formed so as to be stepped alternately in the extending direction (Y direction) of the intermediate beam 5B.

  The rectifying cover 1 according to the first aspect of the present invention comprises a frame body 2 using an intermediate beam 5B having slits 8 formed therein, and a reinforcing fiber 6 is passed through the slits 8 and then both surfaces are covered with unvulcanized rubber. The rubber sheet 3 is molded, and after the rubber sheet 3 is vulcanized, it can be manufactured by a method of fixing the rubber sheet 3 to the outer frames 4A and 4B in a state where the rubber sheet 3 is pulled and tensioned in the X direction.

  With such a structure, it is not necessary to embed a connection fitting for fixing the rubber sheet 3 to the intermediate beam 5B in the rubber sheet 3, and the rubber sheet 3 can be formed in the longitudinal direction (Y direction) of the rectifying cover 1. Since the wall thickness alternately changes, resistance to the tensile force generated in the inner and outer directions of the rubber sheet 3 is increased, so that the durability of the rectifying cover 1 can be improved.

  Further, in the rectifying cover 1 as shown in FIGS. 1 and 2, the reinforcing layer 7 of the rubber sheet 3 in the rectifying cover 1 of the second invention is an intermediate beam 5B intersecting with the reinforcing fiber 6 as shown in FIG. It is fixed to the inner surface side by sandwiching it with a metal plate 9. The intermediate beam 5B and the plate 9 are mechanically fixed to each other by a bolt or the like (not shown), but the reinforcing fiber 6 bypasses the bolt passage position so that the reinforcing fiber 6 is not damaged by the bolt. It is preferable to arrange in.

  In the rectifying cover 1 of the second invention, the reinforcing fiber 6 is temporarily fixed to the inner side of the intermediate beam 5B with the plate 9, and the rubber sheet 3 is formed by covering the both surfaces with unvulcanized rubber. After vulcanization, the rubber sheet 3 can be manufactured by a method of fixing it to the intermediate beams 5A and 5B and the outer frames 4A and 4B in a state where the rubber sheet 3 is pulled and tensioned.

  With such a structure, it is not necessary to embed a connection fitting for fixing the rubber sheet 3 to the intermediate beam 5B in the rubber sheet 3, and the reinforcing layer 7 is intermittent in the longitudinal direction (X direction) of the rectifying cover 1. Since the resistance to the tensile force generated in the inner and outer directions of the rubber sheet 3 is increased, the durability of the rectifying cover 1 can be improved.

  The rectifying cover and the manufacturing method thereof according to the present invention are preferably used as a rectifying cover for a pressure chamber in which a sonar is installed in an observation ship or a ship and a manufacturing method thereof.

DESCRIPTION OF SYMBOLS 1 Rectification cover 2 Frame 3 Rubber sheet 4A (X direction) Outer frame 4B (Y direction) Outer frame 5A (X direction) Intermediate beam 5B (Y direction) Intermediate beam 6 Reinforcing fiber 7 Reinforcing layer 8 Slit 9 plate

Claims (6)

Reinforcing fibers are applied to a frame body composed of an outer frame that comes into contact with the peripheral edge of an opening of a recess formed on the side wall of a structure portion used on or in water, and an intermediate beam disposed in a lattice shape in the outer frame. In the rectifying covering formed by fixing the rubber sheet in which the aligned reinforcing layers are embedded, the reinforcing fibers are tensioned and fixed to the frame body along the longitudinal direction of the frame body,
A plurality of slits are formed in the intermediate beam that intersects the reinforcing fiber among the intermediate beams so as to be alternately stepped in the extending direction of the intermediate beam, and the rectifying cover that allows the reinforcing fiber to pass through the slit. . Reinforcing fibers are applied to a frame body composed of an outer frame that comes into contact with the peripheral edge of an opening of a recess formed on the side wall of a structure portion used on or in water, and an intermediate beam disposed in a lattice shape in the outer frame. In the rectifying covering formed by fixing the rubber sheet in which the aligned reinforcing layers are embedded, the reinforcing fibers are tensioned and fixed to the frame body along the longitudinal direction of the frame body,
A rectifying cover for fixing the reinforcing fiber by sandwiching the reinforcing fiber with a plate to an intermediate beam intersecting with the reinforcing fiber among the intermediate beams.   The rectifying covering according to claim 1 or 2, wherein the reinforcing fiber is a rubberized metal wire or organic fiber. Reinforcing fibers are applied to a frame body composed of an outer frame that comes into contact with the peripheral edge of an opening of a recess formed on the side wall of a structure portion used on or in water, and an intermediate beam disposed in a lattice shape in the outer frame. In a method of manufacturing a rectifying cover in which rubber sheets embedded with aligned reinforcing layers are fixed by tensioning and fixing the reinforcing fiber along the longitudinal direction of the frame body , alternately in the longitudinal direction A reinforcing layer is attached to a metal frame having an intermediate beam formed with a plurality of slits so as to be stepped so that the reinforcing fiber passes through the slit of the intermediate beam, and unvulcanized rubber is formed on both sides of the reinforcing layer. A method of manufacturing a rectifying cover, in which a rubber sheet is formed by coating, the rubber sheet is vulcanized, and the vulcanized rubber sheet is tensioned and then fixed to the frame. Reinforcing fibers are applied to a frame body composed of an outer frame that comes into contact with the peripheral edge of an opening of a recess formed on the side wall of a structure portion used on or in water, and an intermediate beam disposed in a lattice shape in the outer frame. A metal having an intermediate beam in a method of manufacturing a rectifying cover in which a rubber sheet embedded with an aligned reinforcing layer is fixed by tensioning the reinforcing fiber along the longitudinal direction of the frame. A reinforcing layer is attached to a frame made of steel so that reinforcing fibers are sandwiched between the intermediate beam and the plate, unvulcanized rubber is coated on both sides of the reinforcing layer, a rubber sheet is formed, and the rubber sheet is A method of manufacturing a rectifying cover that vulcanizes and tensions the vulcanized rubber sheet and then fixes it to the frame.   The method of manufacturing a rectifying covering according to claim 4 or 5, wherein the reinforcing fibers are rubberized metal wires or organic fibers.

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