JP2007315586A - Cap of racking cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cap of a racking cover, simply manufactured as a unified product without calculation in design, and easily caulked. <P>SOLUTION: The cap 20 includes a blind patch 22 sealing an opening of a cover body 16; a cylindrical body 24, both ends of which are provided with an opening, and whose outer periphery comes into contact with the inner surface of the cover body 16; and a projecting part 26, which is a joint part between the outer peripheral edge of the blind patch 22 and one opening edge 25a of the cylindrical body 24, and projected from the outer periphery of the cylindrical body 24 and hooked on an opening edge 17 of the cover body 16. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cap for a racking cover for covering piping such as sanitary piping, air conditioning piping, and plant piping.

  Piping such as sanitary piping is covered with a heat insulating material (covering material) and further covered with a racking cover (see Patent Document 1). Caps and flange covers are manufactured using chrysanthemum squeezing and Pittsburgh seams (Mitsui seaweeds) where there are pipe ends, places where the pipe diameter changes, and flanges.

  Chrysanthemum squeezing is a waveform in which the edge of the racking cover is folded several times in a mountain, so errors in the squeezing width are likely to occur due to differences in manufacturer and physical condition of the day. This waveform requires waterproofing (coking) technology and labor, and is expensive. Furthermore, since the mountain fold and valley folds are repeated a plurality of times, manufacturing takes time. In addition, Pittsburgh uses a flange when manufacturing the flange cover, but it takes time and labor for processing and assembly because the flange is dimensioned and manufactured at the factory. Therefore, it is desirable that it can be easily created on site.

  Patent Document 2 discloses a piping cap. However, Patent Document 2 is not related to a racking cover. The curved side piece is difficult to insert between the heat insulating material and the racking cover, and has a shape that cannot be applied to the racking cover.

JP 2001-74194 A No. 55-037181 (No. 56-139081)

  An object of the present invention is to provide a cap of a racking cover that can easily produce a uniform product without performing design calculations and is easy to perform caulking.

  The cap of the present invention is a cap used for an end portion of a cylindrical cover body having pipes covered with a covering material and having openings at both ends for covering the covering material, and a blind plate for sealing the opening of the cover body. A cylindrical body that is inserted between the cover body and the covering material and has openings at both ends, the outer periphery of which is in contact with the inner surface of the cover body, an outer peripheral edge of the blind plate, and one opening edge of the cylindrical body And a protrusion protruding from the outer periphery of the cylindrical body and hooked on the opening edge of the cover body.

  Further, an opening may be provided in the blind plate, and an end of another cover body may be connected to the opening edge. Further, a valve may be passed through this opening.

  You may make one notch which breaks the cylinder of a cap, a convex part, and a blind board. You may provide the reinforcement member inserted in an incision and pinched | interposed into edge parts.

  The present invention can be easily attached only by inserting the cylinder into the cover body. Since no chrysanthemum squeezing is performed, there is no need to perform complicated design calculations. Because there is no chrysanthemum waveform, it is easy to perform coking, and it is difficult for workers to make a difference in coking. Further, since the chrysanthemum is not performed, the appearance shape does not vary depending on the operator, and the racking cover is unified and the appearance is improved.

  By providing an opening in the blind plate of the cap, a cover body different from the cover body to which the cap is attached can be attached to the blind plate. The cap of the present invention is highly versatile, and even if the size of the cover body changes, it can have a uniform appearance throughout the entire racking cover. In this case as well, chrysanthemum squeezing is not performed, and work on site is small, so mounting and caulking are easy.

  Even if all pipes have been completed and the cap is attached where the diameter of the pipe changes, if the cap is cut and the cap is twisted, the edges of the cut will be separated and the cap will be attached to the pipe. Can be attached. Even if the rigidity of the cap is reduced by the cut, the rigidity of the cap can be maintained to some extent by inserting the reinforcing member into the cut.

  The cap of the present invention will be described with reference to the drawings. Since there are various embodiments, they will be described in order.

  As shown in FIG. 2, the outer periphery of the pipe 12 such as a sanitary pipe is covered with a heat insulating material (covering material) 14 and further covered with a racking cover 10. The cover main body 16 of the racking cover 10 that covers the outer periphery is formed by connecting the side edges of the plate members into a cylindrical shape. The present invention is a cap 20 that closes at least one opening of the cover body 16. In general, a plurality of cover bodies 16 are connected together, but a structure in which a plurality of cover bodies 16 are connected together will be described as one cover body.

  The cap 20 shown in FIGS. 1 and 2 includes a blind plate 22 that seals at least one opening of the cover body 16, a cylinder 24 that has openings at both ends and the outer periphery contacts the inner surface of the cover body 16, and a blind plate 22 is a joint between the outer peripheral edge 22 and one opening edge 25 a of the cylinder 24, and includes a protrusion 26 that protrudes from the outer periphery of the cylinder 24 and is hooked on the opening edge 17 of the cover body 16.

  The outer peripheral shape of the blind plate 22 is the same shape as the opening of the cover body 16. If the opening of the cover body 16 is circular, the blind plate 22 is also circular. A part of the blind plate 22 may protrude on the opposite side of the cylindrical body 24, or may be a flat surface.

  The cylindrical body 24 is inserted between the heat insulating material 14 and the cover main body 16 from the other opening edge 25b. Almost all the outer periphery of the cylindrical body 24 is in contact with the inner periphery of the cover body 16, and almost all the inner periphery of the cylindrical body 24 is in contact with the heat insulating material 14, whereby the cover main body 16 and the heat insulating material with respect to the cylindrical body 24 are contacted. The friction of 14 makes it difficult for the cylindrical body 24 to come off the cover body 16. Unlike the cited document 2 shown in the prior art, the inner diameter of the cylindrical body 24 is constant without changing, so that it cannot be inserted between the heat insulating material 14 and the cover main body 16. In FIG. 2B, the cylinder 24 and the cover main body 16 are not in contact with each other in order to make the drawing easy to see, but in actuality they are in contact.

  Since the convex portion 26 is caught by the opening edge 17 of the cover main body 16, the blind plate 22 does not enter the inside of the cover main body 16. The blind plate 22 serves to block the opening of the cover body 16.

  The blind plate 22, the cylindrical body 24, and the convex portion 26 may be formed integrally by pressing a single metal plate. When these are integrated, it becomes difficult for rainwater to enter the inside of the racking cover 10. Moreover, as shown in FIG. 3 and FIG. 4, the blind plates 22b and 22c and the cylinders 24b and 24c may be separated, and the convex portions 26b and 26c may be formed where the two are connected. Moreover, if the cover main body 16 formed of resin is used, the blind plate 22, the cylindrical body 24, and the convex portion 26 may be formed by resin molding.

  Although the blind plate 22 in FIG. 1 is planar, the concave portion 28 may be provided by a beading roll (stringing roll) as in the blind plate 22d in FIG. The rigidity of the blind plate 22d is increased, and there is a decorative effect.

  If necessary, as shown in FIG. 6, a folding back 30 may be provided toward the outer periphery of the opening edge of the cylindrical body 24. Further, as shown in FIGS. 7 and 8, convex portions 32 and 34 may be provided at arbitrary positions on the outer periphery of the cylindrical body 24. If it can be hooked on the inner surface of the cover main body 16, the cylindrical body 24 is less likely to be detached from the cover main body 16. It is preferable to provide a concave portion on the inner surface of the cover body 16 in which the folded portion 30 in FIG. 6 and the convex portions 32 and 34 in FIG. 7 and FIG.

  As shown in FIG. 9, a notch 36 may be provided in a part of the cylindrical body 24. The notch 36 extends from the other opening edge 25b shown in FIG. 1B to one opening edge 25a. The shape of the notch 36 is a square shape, and the opening edge 25b side is about 1.5 to 2 times wider than the opening edge 25a side. The cover main body 16 is formed by connecting the side edges of a single plate into a cylindrical shape, and the connected portion protrudes from the other portions. A notch 36 is arranged at the joined portion. When the cylindrical body 24 is inserted into the cover main body 16, the joining portion does not get in the way, and the outer periphery of the cylindrical body 24 and the inner surface of the cover main body 16 can be in firm contact. As described with reference to FIG. 1, when distortion is generated by integrally forming the blind plate 22, the cylindrical body 24, and the convex portion 26 by pressing, the distortion can be released by the notch 36. In the vicinity of the opening edge 25 b of the notch 36, it is easy to insert the cylindrical body 24 into the cover body 16 if it is curved as indicated by the symbol r. Since the notch 36 is hidden by the cover main body 16, the appearance is not impaired. In the case where the notch 36 is not provided as shown in FIG. 9, a notch may be provided at the joining portion of the end portions of the cover body 16.

  After the cap 20 is fitted into the opening of the cover body 16, caulking is performed. The cap 20 does not have a conventional chrysanthemum squeezing and can be easily coked. Since the cap 20 is manufactured by press working, the appearance can be unified and the appearance of the entire racking cover 10 can be improved. Since the cap 20 is manufactured in advance by press working, there are few operations on site. The entire mounting of the racking cover 10 to the pipe 12 can be completed in a short time, which saves labor, time and cost.

  Next, the cap 40 for connecting the cover bodies 16b and 16c having different inner diameters as shown in FIG. 10 will be described. The pipes 12b and 12c are covered with a covering material 14, and include a cylindrical first cover main body 16b and a second cover main body 16c having openings at both ends for covering the covering material 14, and a second cover for the first cover main body 16b. The cylindrical inner diameter of the main body 16c is small.

  The cap 40 is inserted between the blind plate 42 that seals the opening of the first cover main body 16b and the first cover main body 16b and the covering material 14, and has openings at both ends, and contacts the inner surface of the first cover main body 16b. The cylindrical body 44, the outer peripheral edge of the blind plate 42, and one opening edge 45a of the cylindrical body 44 protrude from the outer periphery of the cylindrical body 44 and are hooked on the opening edge 17b of the first cover body 16b. The convex portion 46 has an opening in a part of the blind plate 42, the opening edge 17c of the second cover body 16c is inserted into the opening, and the opening edge 48 of the blind plate 42 to which the second cover body 16c is connected. including.

  The cylindrical body 44 is inserted into the opening of the first cover body 16b. A convex portion 46 at the connecting portion between the opening edge 45a of the cylindrical body 44 and the blind plate 42 is caught by the opening edge 17b of the first cover body 16b. The cap 40 attached to the first cover main body 16b has the opening edge 48 for attaching the second cover main body 16c, and the cap 20h of FIG. 9 and the cap 20h of FIG. And so on. The description of the same part is omitted.

  The cap 40 has an opening in a part of the blind plate 42. For example, a circular opening is provided at the center of the blind plate 42. The vicinity of the opening edge 17c of the second cover body 16c, that is, the end of the second cover body 16c is connected to the opening edge 48 that forms the opening. As shown in FIG. 10 (b), when connected, the opening edge 17c of the second cover body 16c slightly enters the inside of the first cover body 16b, but the length of entry is arbitrary. After the second cover main body 16c is inserted into the opening of the blind plate 42, caulking is performed to fix the opening edge 48 of the blind plate 42 and the second cover main body 16c and waterproof.

  When the cap 40 is attached to the first cover body 16b, it may be after the pipe 12 is disposed. In this case, as shown in FIG. 11B, one notch 50 is made from the edge of the notch 36 to the opening edge 48 of the blind plate 42. The cylindrical body 44, the convex portion 46, and the blind plate 42 are broken by the notch 36 and the notch 50. By twisting the cap 40, the edges of the notch 50 can be separated and attached. One cut may be made from the other opening edge 45b of the cylindrical body 44 to the opening edge 48 of the blind plate 42 regardless of the presence or absence of the notch 36, but from the notch 36 as shown in FIG. Is easier to cut 50.

  Similar to the first embodiment, there is no need for chrysanthemum squeezing, the appearance can be unified, and coking is easy. There is little work in the field just to attach the connection part.

  Another member may be inserted into the notch 50 provided in the blind plate 42 before caulking the cap 40. For example, a reinforcing member 52 having acute mountain folds 53a and valley folds 53b at symmetrical positions from the center line of the plate as shown in FIG. The valley folds 53b are in contact with each other or face each other at such a short distance that they contact each other. The valley fold portions 53b face each other, and as shown in FIGS. 11B and 11C, the portion is inserted into the notch 50 of the blind plate 42 and sandwiched between the edge portions 43 of the notch 50. The strength of the blind plate 42 is weakened by the cuts 50 and can be reinforced. The edge portions 43 of the cuts 50 face each other by the reinforcing member 52, and the blind plate 42 can be made substantially flat, and the appearance is hardly impaired. A plurality of small reinforcing members 52 may be used.

  Next, the case where the flange 54 as shown in FIG. 12 is covered will be described. When the flange 54 is attached to the pipe 12, it is necessary to increase the inner diameter of the cover body of the racking cover 10 only by that portion. Hereinafter, this embodiment will be described.

  The pipe 12 is covered with a covering material 14, and includes a cylindrical first cover body 16b, a second cover body 16c, and a third cover body 16d having openings at both ends for covering the covering material 14, and the first cover body The cylindrical inner diameters of the second cover body 16c and the third cover body 16d with respect to 16b are small.

  The first cap 40a is inserted between the first blind plate 42a that seals one opening of the first cover body 16b, the first cover body 16b, and the covering material 14, and has openings at both ends. The first cylindrical body 44a that contacts the inner surface of the main body 16b, the joint between the outer peripheral edge of the first blind plate 42a and one opening edge 45a of the first cylindrical body 44a, and more than the outer periphery of the first cylindrical body 44a A first protrusion 46a that protrudes and is hooked on the opening edge 17a of the first cover body 16b, and a first opening 48a in a part of the first blind plate 42a, and the opening of the second cover body 16c in the first opening 48a. The edge 17c is inserted and the opening edge of the 1st blind board 42a to which the 2nd cover main body 16c is connected is included.

  The second cap 40b is inserted between the second blind plate 42b for sealing the other opening of the first cover main body 16b, the first cover main body 16b and the covering material 14, and has openings at both ends. The second cylinder 44b in contact with the inner surface of the main body 16b, the joint between the outer peripheral edge of the second blind plate 42b and one opening edge 45b of the second cylinder 44b, and more than the outer periphery of the second cylinder 44b The second protrusion 46b protrudes and is hooked on the opening edge 17b of the first cover main body 16b, and the second blind plate 42b has a second opening 48b. The second opening 48b has an opening of the third cover main body 16d. The edge 17d is inserted and includes the opening edge of the second blind plate 42b connected to the third cover body 16d.

  Openings at both ends of the first cover body 16b are closed by caps 40a and 40b. In the second embodiment, the cap 40 is provided at one end of the first cover main body 16b. However, in the third embodiment, the cap 40 is provided at both ends of the first cover main body 16b. That is, there are two caps 40 according to the second embodiment. The caps 40a and 40b are the same as the cap 40 of the second embodiment. Description of the same part is omitted.

  As shown in FIG. 12, when the first cylindrical body 44a and the second cylindrical body 44b are inserted into both ends of the first cover body 16b, the first convex portion 46a and the second convex portion 46b are caught. A first opening 48a and a second opening 48b are opened in the first blind plate 42a and the second blind plate 42b, and the second cover body 16c and the third cover body 16d are inserted and attached thereto. As in the second embodiment, the first and second connecting portions 40a and 40b are cut so that the first and second caps 40a and 40b are attached to the pipe 12.

  Similarly to the second embodiment, since the chrysanthemum squeezing or the like is not necessary, the cover bodies 16b, 16c, and 16d having different inner diameters can be easily joined. The appearance can be unified, it looks good, and caulking is easy. Conventionally, the cover for the flange 54 is tedious because it is dimensionally taken at the site and manufactured at the factory, but the flange 54 can be easily covered with the configuration of the third embodiment.

  If necessary, the caps 40a and 40b are provided with the notches 36 and the cuts 50 shown in FIG. It is also possible to insert the reinforcing member 52 of FIG.

  As shown in FIG. 13, the present invention may be applied to a location where the valve 70 is present. The cap 20 shown in FIG. 1 according to the first embodiment, the cap 20h shown in FIG. The cap 60 shown in FIG. 13 is provided with an opening in the blind plate 62 of the cap 60 so that the valve 70 passes through the opening. In addition, when attaching, the handle 72 of the valve 70 is attached after removing the handle 72 of the valve 70.

  In addition, the present invention can be carried out in a mode in which various improvements, modifications, and changes are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention.

It is a figure of the cap of the racking cover which concerns on this invention, (a) is a perspective view, (b) is the sectional view on the AA line of (a), (c) is the a part of (b). It is an enlarged view. It is the figure which attached the cap to the cover main body, (a) is a perspective view, (b) is the BB sectional drawing of (a). (A) is sectional drawing of a cap, (b) is an enlarged view of b part of (a). (A) is sectional drawing of a cap, (b) is an enlarged view of c part of (a). It is the figure which provided the recessed part in the blind board, (a) is a perspective view, (b) is CC sectional view taken on the line of (a). It is the figure which turned the opening edge of the cylinder outside, (a) is a perspective view, (b) is the DD sectional view taken on the line (a), (c) is d part of (b) FIG. It is the figure which provided the convex part in the side part of a cylinder, (a) is a perspective view, (b) is the EE sectional view taken on the line (a), (c) is e of (b) It is an enlarged view of a part. It is the figure which provided the convex part which goes around the side part of a cylinder, (a) is a perspective view, (b) is the EE sectional view taken on the line (a), (c) is (b) It is an enlarged view of f part. It is the figure which provided the notch in the cylinder. It is a figure of the cap of the part which connects the cover main body from which an internal diameter differs, (a) is a perspective view, (b) is the GG sectional view taken on the line of (a). It is a figure of a reinforcement member, (a) is a perspective view, (b) is the perspective view which pinched | interposed the reinforcement member, and (c) is the HH sectional view taken on the line of (b). It is a figure which uses two caps in the location with a flange, (a) is a perspective view, (b) is the II sectional view taken on the line of (a). It is a figure of the cap provided in a certain point of a valve, (a) is a perspective view, (b) is a JJ line sectional view of (a).

Explanation of symbols

10: Racking cover 12: Piping 14: Heat insulating material (covering material)
16, 16b, 16c, 16d: Cover body 17, 17b, 17c: Opening edge 20, 20b, 20c, 20d, 20e, 20f, 40, 40a, 40b, 60: Cap 22, 22b, 22c, 22d of cover body, 42, 42a, 42b, 62: Blind plates 24, 24b, 24c, 44, 44a, 44b, 64: Cylindrical bodies 25, 45, 45a, 45b, 65: Opening edges 26, 26b on the side having convex portions of the cylindrical body , 26c, 46, 46a, 46b, 66: convex portion 52: reinforcing member

Claims (5)

A pipe (12) is covered with a covering material (14), and is a cap (20) used at an end of a cylindrical cover body (16) having openings at both ends for covering the covering material (14). ,
A blind plate (22) for sealing at least one opening of the cover body (16);
A cylindrical body (24) inserted between the cover body (16) and the covering material (14), having openings at both ends, and contacting the inner surface of the cover body (16);
It is a joint between the outer peripheral edge of the blind plate (22) and one opening edge (25a) of the cylindrical body (24), protrudes from the outer periphery of the cylindrical body (24), and the cover body (16) A protrusion (26) hooked on the opening edge (17);
Including cap. The cap according to claim 1, wherein the cylindrical body is provided with a notch. The cap according to claim 2, wherein a part of the blind plate is opened. The cap according to claim 3, wherein a notch is provided from a notch of the cylindrical body to an opening edge forming an opening of the blind plate. The cap of Claim 4 which provided the reinforcement member inserted in the said notch | incision and pinched | interposed between the edges of an incision.

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