WO2008044363A1

WO2008044363A1 - Cap for racking cover

Info

Publication number: WO2008044363A1
Application number: PCT/JP2007/061435
Authority: WO
Inventors: Takanori Matsumoto
Original assignee: Zelework Corporation
Priority date: 2006-10-12
Filing date: 2007-06-06
Publication date: 2008-04-17

Abstract

A cap that enables production of uniform products without design calculations and can be easily caulked. The cap (20) is used at an end of a tubular cover body (16) for covering a pipe coated with a coating material. The cap (20) has a blind plate (22) that closes an opening of the cover body (16), a tube body (24) that has openings at both ends and whose outer periphery is in contact with the inner surface of the cover body (16), and a projection part (26) that is a joining part between the outer peripheral edge of the blind plate (22) and one opening edge (25a) of the tube body (24), projects from the outer periphery of the tube body (24), and is hooked to an opening edge (17) of the cover body (16). A reversed V-shaped cutout is formed in the tube body (24).

Description

Specification

Racking cover cap

Technical field

[0001] The present invention relates to a cap of a racking cover that covers piping to protect piping such as sanitary piping, air conditioning piping, and plant piping.

Background art

[0003] Pipes such as sanitary pipes are covered with a heat insulating material (covering material) and further covered with a racking cover (see Patent Document 1). In places where there are pipe ends, pipe diameter changes, flanges, etc., Kyukushibori or Pittsburgh Hase (Mitsui Haze) are used to manufacture cap covers.

[0003] Since the chrysanthemum squeezing is a waveform in which the edge of the racking cover is folded several times in the valley, 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. In addition, it takes a long time to manufacture because the mountain fold and valley folds are repeated several times. In addition, when manufacturing flange covers, Pittsburgh uses force to make flange dimensions at the site and manufactures at the factory, which requires work and assembly. Therefore, it is desirable that it can be easily created on site.

[0004] Patent Document 2 discloses a piping cap. However, Patent Document 2 does not relate to a racking cover. The curved side piece cannot be applied to a racking cover that is difficult to insert between the heat insulating material and the racking cover.

Patent Document 1: Japanese Patent Laid-Open No. 2001-74194

Patent Document 2: No. 55-037181 (No. 56-139081)

Disclosure of the invention

Problems to be solved by the invention

[0006] An object of the present invention is to provide a cap for a racking cover that can easily produce a uniform product without performing design calculations and is easy to perform caulking. Means for solving the problem [0007] The cap of the present invention is a cap used at an end portion of a cylindrical cover body having a pipe covered with a covering material and having openings at both ends for covering the covering material, and sealing the opening of the cover body. One of the blind plate, a cylindrical body inserted between the cover main body and the covering material, having openings at both ends, the outer periphery contacting the inner surface of the cover main body, and the outer peripheral edge of the blind plate and the cylindrical body A projection that protrudes from the outer periphery of the cylindrical body and is hooked on the opening edge of the cover body.

[0008] 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.

[0009] A single cut may be made to break the cylindrical body, convex portion, and blind plate of the cap. Reinforcing members may be provided that are inserted into the notches and sandwiched between the edges.

The invention's effect

[0010] The present invention can be easily attached simply by inserting the cylinder into the cover body.

Since no chrysanthemum squeezing is performed, there is no need to perform complicated design calculations. Since there is no chrysanthemum waveform, it is difficult to make a difference in caulking depending on the operator or immediately after caulking. Furthermore, since the chrysanthemum is not squeezed, it is possible to provide a uniform racking cover that does not vary in appearance from worker to worker, and the appearance is improved.

[0011] 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 can have a uniform appearance across the entire racking cover even if the size of the cover body, which is highly versatile, changes. Even in this case, chrysanthemum squeezing is not performed, and the work on site is small! / Installation and caulking are easy.

[0012] Even when all the piping is completed and the cap is attached where the diameter of the piping changes, if the cap is cut and the cap is screwed, the edges of the cut will be separated and the piping will Cap can be attached to. 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 a reinforcing member into the cut.

BEST MODE FOR CARRYING OUT THE INVENTION

[0013] The cap of the present invention will be described with reference to the drawings. Since there are various embodiments, order Explained.

Example 1

As shown in FIG. 2, the outer periphery of a 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. A force generally used to connect a plurality of cover bodies 16 A combination of a plurality of cover bodies 16 is also described as a single cover body.

A cap 20 shown in FIGS. 1 and 2 includes a blind plate 22 that seals at least one opening of the cover body 16, and a cylindrical body 24 that has openings at both ends and whose outer periphery contacts the inner surface of the cover body 16. In addition, it is a joint between the outer peripheral edge of the blind plate 22 and one opening edge 25a 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 body 16 from the other opening edge 25b.

Almost all the outer periphery of the cylinder 24 is in contact with the inner periphery of the cover main body 16, and almost all the inner periphery of the cylinder 24 is in contact with the heat insulating material 14, so that the cover main body 16 and the heat insulating material are in contact with the cylinder 24. The cylinder 24 is detached from the cover body 16 by the friction of 14. Unlike the cited document 2 shown in the prior art, since the inner diameter of the cylinder 24 is constant without change, it cannot be inserted between the heat insulating material 14 and the force bar main body 16. In FIG. 2 (b), the cylindrical body 24 and the cover body 16 are not in contact with each other for the sake of clarity, but in actuality they are in contact.

[0018] Since the convex portion 26 applies a pulling force to the opening edge 17 of the cover body 16, the blind plate 22 does not enter the inside of the cover body 16. The blind plate 22 serves to block the opening of the cover body 16.

[0019] The blind plate 22, the cylinder 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. Further, 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 at the place where the two are connected. Also a cover made of greaves If the main body 16 is used, the blind plate 22, the cylinder 24, and the convex portion 26 may be formed by resin molding.

The blind plate 22 in FIG. 1 is planar, but the recess 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.

[0021] If necessary, as shown in FIG. 6, a directional force fold 30 may be provided on the outer periphery of the opening edge of the cylindrical body 24. Furthermore, 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 body 16, the cylindrical body 24 will not easily come off from the cover body 16. Preferably, the inner surface of the cover body 16 is provided with a recess into 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 cutout 36 may be provided in a part of the cylinder 24. The notch 36 extends from the other opening edge 25b shown in FIG. 1 (b) to one opening edge 25a. The shape of the notch 36 is a square shape, and the opening edge 25b side is approximately 1.5 to 2 times wider than the opening edge 25a side. The cover body 16 is formed by joining the side edges of a single plate into a cylindrical shape, and the joined portion protrudes from the other portions. Make sure that the notch 36 is placed in the joined part. When the cylindrical body 24 is inserted into the cover 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 body 16 can come into contact with tension. As described with reference to FIG. 1, when strain is generated by forming the blind plate 22, the cylinder 24, and the convex portion 26 integrally by pressing, the strain can be released by the notch 36. In the vicinity of the opening edge 25b of the notch 36, it is easier to insert the cylindrical body 24 into the cover body 16 if it is curved as indicated by the symbol r. Since the cutout 36 is hidden by the cover body 16, the appearance is not impaired. If the notch 36 is not provided as shown in FIG. 9, the notch may be provided at the joining portion of the end of the cover body 16.

[0023] After the cap 20 is fitted into the opening of the cover body 16, caulking is performed. Cap 20 can easily perform caulking that is similar to conventional chrysanthemum squeezing. Since the cap 20 is manufactured by pressing, the appearance can be unified and the overall appearance of the racking cover 10 can be improved. Cap 20 is manufactured in advance by press work, so there is less work on site. Absent. Installation of the racking cover 10 to the pipe 12 can be completed in a short time, saving labor, time and money.

Example 2

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 body 16b and a second cover body 16c having openings at both ends for covering the covering material 14, and the second cover body 16b is connected to the second cover body 16b. The cylindrical inner diameter of the cover body 16c is small.

[0025] The cap 40 is inserted between the blind plate 42 for sealing the opening of the first cover body 16b, and between the first cover body 16b and the covering material 14, and has openings at both ends. The cylindrical body 44 that comes into contact with the inner surface, and the joint between the outer peripheral edge of the blind plate 42 and one opening edge 45a of the cylindrical body 44, protrudes from the outer periphery of the cylindrical body 44, and the opening edge of the first cover body 16b 17b has an opening in a part of the convex part 46 and the blind plate 42, the opening edge 17c of the second cover body 16c is inserted into this opening, and the blind plate 42 to which the second cover body 16c is connected And an opening edge 48.

[0026] The cylindrical body 44 is inserted into the opening of the first cover body 16b. The convex portion 46 at the connecting portion between the opening edge 45a of the cylindrical body 44 and the blind plate 42 is caught on the opening edge 17b of the first cover body 16b. The cap 40 attached to the first force bar main body 16b has the opening edge 48 for attaching the second cover main body 16c, except for the cap 20 and the notch 36 of FIG. Same as cap 20h. 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 in 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 forming the opening. As shown in FIG. 10 (b), the force by which the opening edge 17c of the second cover main body 16c slightly enters the inside of the first cover main body 16b when connected is arbitrary. After inserting the second cover main body 16c 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.

[0028] 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. 11 (b), the edge force of the notch 36 also makes one notch 50 up to the opening edge 48 of the blind plate 42. With the notches 36 and 50, the cylinder 44, Break the convex part 46 and blind plate 42. By twisting the cap 40, the edges of the notch 50 can be separated and attached. A single cut may be made from the other opening edge 45b of the cylinder 44 to the opening edge 48 of the blind plate 42 with or without the notch 36, but the notch 36 as shown in Fig. 11 (b). It is easier to make a cut 50 from.

[0029] As in Example 1, chrysanthemum squeezing and the like can unify the required appearance and is easy to coking. There is little work in the field just to attach the connection part.

[0030] Before caulking the cap 40, another member may be inserted into the notch 50 provided in the blind plate 42. For example, as shown in FIG. 11 (a), a reinforcing member 52 having acute mountain folds 53a and valley folds 53b at symmetrical positions from the center line of the plate body is used. The valley folds 53b are in contact with each other or face each other at such a short distance as to contact each other. The valley folds 53 b are facing each other and are aligned, and as shown in FIGS. 11 (b) and 11 (c), the portion is inserted into the notch 50 of the blind plate 42, and the edges 43 of the notch 50 are Insert with. The incision 50 weakens the strength of the blind plate 42 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.

Example 3

Next, a 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 at that portion. Hereinafter, this embodiment will be described.

[0032] 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, 1 The cylindrical inner diameters of the second cover body 16c and the third cover body 16d with respect to the cover body 16b are small.

[0033] 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 first cover body 16b, and 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 the first cylindrical body 44a The first protrusion 46a that protrudes from the outer periphery and is hooked on the opening edge 17a of the first cover body 16b, and the first opening 4 in a part of the first blind plate 42a 8a, the opening edge 17c of the second cover body 16c is inserted into the first opening 48a, and the opening edge of the first blind plate 42a to which the second cover body 16c is connected.

[0034] The second cap 40b is inserted between the second blind plate 42b for sealing the other opening of the first cover body 16b, the first cover body 16b and the covering material 14, and has openings at both ends. The second cylindrical body 44b that contacts the inner surface of the first cover main body 16b, and a joint between the outer peripheral edge of the second blind plate 42b and one opening edge 45b of the second cylindrical body 44b, and the second cylindrical body 44b The second protrusion 46b protrudes from the outer periphery and is hooked on the opening edge 17b of the first cover body 16b, the second blind plate 42b has a second opening 48b, and the second opening 48b has a third. An opening edge 17d of the cover body 16d is inserted, and includes an opening edge of the second blind plate 42b connected to the third cover body 16d.

[0035] Openings at both ends of the first cover body 16b are closed by caps 40a, 40b. In Example 2, the cap 40 is provided at one end of the first cover body 16b. In Example 3, the cap 40 is provided at both ends of the first cover 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 main body 16b, the first convex portion 46a and the second convex portion 46b are pulled. 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 main body 16c and the third cover main 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.

[0037] As in Example 2, chrysanthemum squeezing or the like is not necessary, so that the cover bodies 16b, 16c, and 16d having different inner diameters can be easily joined. The appearance can be unified and the caulking that looks good is easy. Conventionally, the cover for the flange 54 is a troublesome force that has been measured at the site and manufactured at the factory. With the configuration of the third embodiment, the flange 54 can be easily covered.

[0038] If necessary, the caps 40a and 40b are inserted with the notches 36 and 50 shown in FIG. It is also possible to insert the reinforcing member 52 of FIG. 11 into the notch. Example 4

As shown in FIG. 13, the present invention may be applied to a location where the valve 70 is present. The cap 20 of FIG. 1 of Example 1 and the cap 20h of FIG. 9 having the notch 36 are used. The cap 60 shown in FIG. 13 has an opening in the blind plate 62 of the cap 60 so that the valve 70 can pass through the opening. When installing the valve 70, remove the handle 72 of the valve 70, and then attach the handle 70 of the valve 70.

[0040] In addition, the present invention can be implemented in variously modified, modified, and modified forms based on the knowledge of those skilled in the art without departing from the spirit of the present invention.

Brief Description of Drawings

[0041] FIG. 1 is a view of a cap of a racking cover according to the present invention, (a) is a perspective view, (b) is a sectional view taken along line AA of (a), and (c) is It is an enlarged view of a part of (b).

FIG. 2 is a view in which a cap is attached to the cover body, (a) is a perspective view, and (b) is a cross-sectional view taken along line BB in (a).

[FIG. 3] (a) is a cross-sectional view of the cap, and (b) is an enlarged view of a part b of (a).

[Fig. 4] (a) is a cross-sectional view of the cap, and (b) is an enlarged view of a portion c of (a).

FIG. 5 is a view in which a recess is provided in the blind plate, (a) is a perspective view, and (b) is a cross-sectional view taken along the line CC of (a).

FIG. 6 is a view in which the opening edge of the cylindrical body is folded outward, (a) is a perspective view, (b) is a sectional view taken along the line DD in (a), and (c) is a view in (b). It is an enlarged view of d part.

FIG. 7 is a diagram in which convex portions are provided on the side portions of the cylindrical body, (a) is a perspective view, (b) is a cross-sectional view taken along line E—E in (a), and (c) is ( It is an enlarged view of e part of b).

FIG. 8 is a view provided with a convex portion that goes around the side of the cylinder, (a) is a perspective view, (b) is a cross-sectional view taken along line EE of (a), (c) Is an enlarged view of part f in (b).

FIG. 9 is a view in which a cutout is provided in a cylindrical body.

FIG. 10 is a view of a cap at a portion connecting cover bodies having different inner diameters, (a) is a perspective view, and (b) is a cross-sectional view taken along line GG in (a).

FIG. 11 is a view of a reinforcing member, (a) is a perspective view, (b) is a perspective view in which the reinforcing member is cut and sandwiched, and (c) is a cross-sectional view taken along line H—H in (b). FIG. FIG. 12 is a view using two caps at a flanged portion, (a) is a perspective view, and (b) is a cross-sectional view taken along line II of (a).

FIG. 13 is a view of a cap provided at a location where a valve is located, (a) is a perspective view, and (b) is (a

)

Explanation of symbols

10: Racking cover

12: Piping

14: Heat insulation (covering material)

16, 16b, 16c, 16d: Kano

17, 17b, 17c: Opening edge of cover body

20, 20b, 20c, 20d, 20e, 20f, 40, 40a, 40b, 60: Cap

22, 22b, 22c, 22d, 42, 42a, 42b, 62: Blind plate

24, 24b, 24c, 44, 44a, 44b, 64: cylinder

25, 45, 45a, 45b, 65: Opening edge on the side having the convex part of the cylindrical body

26, 26b, 26c, 46, 46a, 46b, 66: Projection

52: Reinforcement member

Claims

The scope of the claims

[1] Caps used at the ends of a cylindrical cover body (16) having pipes (12) covered with a covering material (14) and having openings at both ends for covering the covering material (14) ( 20)

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), and protrudes from the outer periphery of the cylindrical body (24). A convex part (26) hooked on the opening edge (17),

Including

The cover body (16) has a cylindrical shape in which the side edges of one plate are joined together, and the joined part protrudes from the other parts.

The cylindrical body has a shape that extends from the other opening edge (25b) to one opening edge (25a), and the other opening edge (25b) side is wider than the one opening edge (25a) side. And provided with a notch (36) to be arranged in the joined portion.

cap.

[2] The cap according to claim 1, wherein a circular opening is provided in the center of the blind plate.

[3] The cap according to claim 2, wherein a cut is provided from an edge of the cutout of the cylindrical body to an opening edge forming an opening of the blind plate.

[4] The cap according to claim 3, further comprising a reinforcing member inserted into the notch and sandwiched between edges of the notch.