JP2001074194A - Racking cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a racking cover with remarkably improved assembling and operation efficiency with cover bodies connected to each other rigidly, showing little relative useless motion, brining about excellent characteristics in strength and weather resistance. SOLUTION: This racking cover is made by folding one side edge of a lengthy metal plate at least two times to form a connection female edge 2, connecting the female edge 2 to a male edge 3 formed on the other side of the metal plate in coming-off preventive manner to thereby form a tubular cover body 1, and connecting a number of the cover bodies 1 in a longitudinal direction. In such a case, a projection is formed on the connection male edge 3 for preventing coming-off from the connection female edge 2 in each cover body 1 by rolling process, and the projection is made up of a projected line 3B extended in a longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a racking cover that is covered with a heat insulating material to protect a water pipe, a plant pipe, and the like.

[0002]

2. Description of the Related Art In order to protect water pipes, plant pipes, and the like from wind and snow, they are covered with heat insulating materials and various covers. Conventionally, in cold districts, water pipes, plant pipes, and the like are covered with a heat insulating material such as urethane foam, and a vinyl tape is spirally wound around the heat insulating material and fixed to form a cover body. Alternatively, a metal plate or a plastic plate is wrapped in a tubular shape around a heat insulating material such as urethane foam coated on a water pipe or a plant pipe, and soldered along the joining edge or joined with an adhesive tape or an adhesive. The cover body.

However, in the case of these conventional covers, in which the vinyl tape is spirally wound around the outer periphery of the heat insulating material, it takes a lot of time and labor to wind the vinyl tape, and the work efficiency is increased. And the strength was insufficient. In addition, the latter type, in which a metal plate or a plastic plate is wound into a tube and soldered along the joining edge or joined with an adhesive tape or an adhesive, is excellent in strength, but requires a joint work on site. In short, it was still difficult to say that the work efficiency was sufficient.

Therefore, the present applicant has proposed a racking cover as shown in FIG. To explain this,
As shown in FIG. 8A, one of the side edges (for example, the left edge of the illustrated one) of the long metal plate is formed by folding at least twice (the first folded portion 22A and the second folded portion 22B which is further folded). The joining female edge 22 formed on the other side and the joining male edge 23 formed on the other side are stopper-joined to form a plurality of tubular cover members 21 and 21 connected in the length direction.
The first connecting groove 26 formed by the first folded portion 22A is formed on the joining edges 22, 23 formed by the joining female edge 22 and the joining male edge 23 at the rear connecting end 33A of the cover 21.
And the second connecting groove 28 on the inner peripheral side of the joining male edge 23 joined to the joining groove 27 formed by the first folded portion 22A and the second folded portion 22B). The oblique cutouts 24 and 25 formed on the joining edges 22 and 23 of the front connection end 33B are inserted and connected to the arrows N and P in FIG. The racking cover 21 is connected to the rack 21 so as not to rotate relatively.

[0005] As shown in FIG. 8 (B), in order to prevent the cover female members 21, 21 from being detached from the female joint edge 22, the male joint edge 23 is provided with a predetermined interval in the length direction by punching press working or the like. Put many protrusions 23C (FIG. 8)
(C)). With such a configuration,
By joining the joining female edge formed by a simple bending process and the retaining projection formed by a punching press process or the like, the cover body can be assembled with one touch at the site, and the rear connection of the cover body 21 can be performed. End 33A
Body 21 connected adjacent to joining edges 22 and 23
By inserting and connecting the inclined cutouts 24 and 25 of the front connection end 33B while exhibiting an exquisite guide function, the cover bodies 21 and 21 can be connected so that they cannot rotate relative to each other. A racking cover has been proposed, which is remarkably improved, has no relative delusion between connected cover members, and is robust and excellent in strength.

[0006]

However, in the above-mentioned conventional racking cover of the present applicant, in order to prevent the joining female edge 22 of the cover body 21 from coming off, a predetermined distance in the length direction is provided at the joining male edge 23. Since many protrusions 23C cut and raised by placing are formed by punching press working or the like, punched holes are formed, and there is a possibility that rust is generated due to intrusion of rain and snow from the joining edges 22 and 23. Was. Therefore, as shown in FIG.
It was necessary to caulk the sealing material 30 along 2 and 23, which required high cost and labor.

Therefore, the present invention further improves the racking cover proposed by the applicant of the present invention, so that the work efficiency of assembling and connecting is remarkably improved, and the connected cover bodies are firmly fixed without relative delusion. It is another object of the present invention to provide a racking cover having excellent weather resistance in addition to characteristics excellent in strength.

[0008]

SUMMARY OF THE INVENTION For this purpose, the present invention provides a joining method in which a joining female edge formed by folding at least one of both side edges of a long metal plate and a joining male edge formed on the other side are prevented from coming off. A racking cover formed by connecting a large number of tubular cover members in the longitudinal direction, the racking cover being adjacent to a joining edge formed of a joining female edge and a joining male edge at a rear connection end of the cover body. In a racking cover for connecting these cover bodies so as to be relatively non-rotatable by inserting and connecting an inclined cutout formed at a connection edge of a front connection end portion of the cover bodies to be connected, a connection female edge of each cover body is provided. And a protrusion formed on the male joining edge to prevent the protrusion from coming off is formed of a protrusion extending in the length direction formed by rolling. The present invention also provides a cover body formed in a lengthwise direction by joining a female joint formed by folding at least one of both side edges of a long metal plate at least twice and a male joint formed on the other side in a longitudinal direction. And a front connecting end of the cover body which is adjacently connected to a connecting edge formed by a connecting female edge and a connecting male edge at a rear connecting end of the cover body. In a racking cover that connects these cover members so that they cannot rotate relative to each other by inserting and connecting the inclined cutouts formed at the joint edges of the portions, the male members are joined to the joint male edges in order to prevent the cover members from coming off from the joint female edges. The formed protrusion is constituted by a large number of protrusions formed by non-piercing press working. The present invention also provides a cover body formed into a tubular shape by retaining and joining a joined female edge formed by folding at least one of both side edges of a long metal plate at least twice and a joined male edge formed by folding the other once. A racking cover configured by connecting a large number in the longitudinal direction, wherein a joining edge formed by a joining female edge and a joining male edge at a rear connection end of the cover body, In a racking cover for connecting these cover members so that they cannot rotate relative to each other by inserting and connecting an inclined cutout portion formed at a connection edge of a front connection end portion, a connection male edge is removed from a connection female edge of each cover body. It is characterized in that the protrusion formed on the joined female edge for stopping is constituted by a protrusion extending in the length direction formed by rolling. The present invention also provides a cover body formed into a tubular shape by retaining and joining a joined female edge formed by folding at least one of both side edges of a long metal plate at least twice and a joined male edge formed by folding the other once. A racking cover configured by connecting a large number in the longitudinal direction, wherein a joining edge formed by a joining female edge and a joining male edge at a rear connection end of the cover body, In a racking cover for connecting these cover members so that they cannot rotate relative to each other by inserting and connecting an inclined cutout portion formed at a connection edge of a front connection end portion, a connection male edge is removed from a connection female edge of each cover body. A projection formed on the joined female edge for stopping is constituted by a large number of projections formed by non-piercing press working. Further, the present invention is characterized in that an inclined cutout portion is also formed at a joining male edge of a rear connecting end portion of the cover body. Further, the present invention is characterized in that a heat insulating paint is applied to at least an inner peripheral surface of the cover body. Further, the present invention is characterized in that the second folded portion of the joined female edge extends from the first folded portion toward the joined male edge to form a guide portion. Further, the present invention is characterized in that the guide portion is further folded back to form a protective edge, and these are used as means for solving the problem.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of a racking cover according to the present invention, wherein FIG. 1A is a perspective view of a cover body before assembling and joining, and FIG. 1B is after assembling and joining. 1 (C) is an enlarged view of a portion A in FIG. 1 (B), FIG. 2 is a perspective view showing a state where the tubular cover members are connected to each other, and FIG. 3 is a luckin of the present invention. FIG. 4 is a perspective view showing a usage state of the ling cover. As shown in FIG. 3, the cover body 1 constituting the racking cover of the present invention is made of a heat insulating material such as urethane foam coated on the outer periphery of the water pipe or the plant pipe 9 to protect the water pipe and the plant pipe 9 from the snow and snow. The outer periphery of the tube 10 is further coated and used.

As shown in FIGS. 1 (A) and 1 (C), the racking cover of the present invention is formed by folding one of the two side edges of the long metal plate at least twice (the first folded portion 2A and the folded back portion). 2) and a plurality of cover members 1 and 1 formed into a tubular shape by joining the female joint edge 2 formed on the other side and the male joint edge 3 formed on the other side in a longitudinal direction. . FIG. 1B shows a state in which the leading edge 3A of the joining male edge 3 is inserted and locked into the joining groove 7 formed by the first folded portion 2A and the second folded portion 2B of the joined female edge 2 and joined. The cover body 1 is formed in a tubular shape as shown in FIG. In this embodiment, the joining female edge 2 in each of the cover bodies 1
A protrusion formed on the joining male edge 3 to prevent the protrusion from coming off is formed of a ridge 3B extending in the length direction formed by rolling. As shown in FIG. 1 (C) in an enlarged manner, the ridge 3B formed on the joining male edge 3 is prevented from coming off by a retaining portion 2C formed by further folding the second folded portion 2B of the joining female edge 2. Is done.

The thus constructed cover bodies 1 are connected to each other as shown in FIG. 2 to form a racking cover. The male and female joining edges 2, 3 of the rear connecting end 13A of the upper cover body 1 in the drawing (refer to FIG. 1, the first connecting groove 6 formed by the first folded portion 2A).
And the second connecting groove 8 on the inner peripheral side of the joining male edge 3 joined to the joining groove 7 formed by the first folded portion 2A and the second folded portion 2B), and a cover which is adjacently connected to the lower portion in the figure. The cover bodies 1 and 1 are relatively connected by inserting and connecting the inclined cutouts 4 and 5 formed on the joining edges 2 and 3 of the front connection end portion 13B of the body 1 to arrows B and C as indicated by thick arrows. It is connected non-rotatably, and this is repeated in sequence to connect a number of cover bodies to form a racking cover.

With such a configuration, the joining female edge 2 formed by simple bending and the joining ridge 3B extending in the length direction of the joining male edge 3 formed by rolling are joined on site. The cover body can be assembled by retaining and joining with one touch,
The inclined cutouts 4 and 5 of the front connection end 13B of the cover 1 connected to the male and female joint edges 2 and 3 at the rear connection end 13A of the cover 1 while performing an exquisite guide function. By doing so, these cover bodies 1, 1
(The inclined cutout 4 is regulated by the first connecting groove 6 to prevent the clockwise rotation in the figure, and the inclined cutout 5 is regulated by the joining groove 7 at the back of the second connecting groove 8). (Rotation in the counterclockwise direction in the drawing is prevented.), The working efficiency is remarkably improved, and the connected cover members are solid without any delusion, and are also strong in terms of strength. An excellent racking cover is configured. In the present embodiment, the ridge 3B of the joining male rim 3 having a function of preventing the joining female rim 2 from being pulled out is extended in the length direction by rolling, is easy to form, and is susceptible to corrosion due to penetration of rain and snow. There is no perforation or the like, and the joining is performed more securely by preventing and joining the entire length of the joining edge.

FIG. 4 shows a second embodiment of the racking cover according to the present invention. In this embodiment, the racking cover is attached to the joining male edge 3 to prevent the joining female edge 2 of each cover body 1 from coming off. The formed protrusion is constituted by a large number of protrusions 3C formed by non-piercing press working. FIG. 4 is a cross-sectional view taken along the line DD of FIG.
As shown in (B), a large number of protrusions 3C formed on the joining male edge 3 are formed by press working without punching, and the projections 3C which are locked by the retaining portions 2C on the joining female edge 2 are erected. The wall is formed inclined rearward by an angle θ. Is preferably chosen between about 2 and 5 degrees. At this angle, the retaining effect is large. This inclination angle θ is also applied to the upright wall of the ridge 3B in the first embodiment. With this configuration, also in the present embodiment, the projections 3C of the joining male rim 3 having a retaining function for the joining female rim 2 are easily formed by a non-perforation press working, and the intrusion of rain and snow is caused. There is no perforation or the like that may corrode, and reliable joining is performed under high weather resistance.

FIG. 5 shows a third embodiment of the racking cover according to the present invention. The present embodiment is characterized in that a heat insulating paint 11 is applied to at least the inner peripheral surface of the cover 1. The heat-insulating paint 11 mainly composed of a latex resin (latex resin, residual monomer, silicate, emulsion resin, etc.) recently developed is used for the cover body 1.
By applying to the inner peripheral surface of the above, a heat insulating effect equivalent to a heat insulating layer of glass wool having a thickness of 50 mm can be obtained with a heat insulating paint having a thickness of 0.38 mm. Thereby, a heat insulating material such as urethane foam can be omitted, and a small-diameter racking cover close to the diameter of a water pipe or a plant pipe can be used, and the cost can be reduced.

FIG. 6 shows a racking cover according to a fourth embodiment of the present invention. This embodiment is different from the above-described embodiments in that the retaining cover is provided on the joint female edge 2 side. The protrusion formed on the joint female edge 2 for preventing the joint male edge 3 from being removed from the joint female edge 2 in each cover body 1 is formed in a length direction formed by rolling. Ridges 2D extending from
As shown in FIG. 6 (C), which is an enlarged view of a portion F in FIG. 6 (A), a ridge 2D is formed near the edge of the second folded portion 2B and folded once. 3D bent edge for retaining
To lock the joining male edge 3 formed with. The method of connecting the cover bodies 1 thus configured is similar to that of the above-described embodiment. That is, as shown in FIG. 6A, the front connecting end 13B of the adjacent cover body 1
, The first inclined excision part 4 is inserted into the arrow I part, and the second inclined excision part 5 is inserted into the arrow J part. In the present embodiment,
The configuration of the joining male rim 3 is relatively simplified.

In the present embodiment, the cover 1
The third inclined cutout 12 is also formed at the joining male edge 3 of the rear connecting end 13A. As a result, the second inclined cutout portion 5 is securely brought into contact with the arrow J portion (the joining groove 7 (see FIG. 6C) at the back of the second connecting groove 8), and the adjacent cover body 1 is joined.
Can be reliably prevented from rotating in the counterclockwise direction. FIG. 6 is a sectional view taken along line GG and line HH in FIG.
(D) and FIG. 6 (E) clearly show the cross section of the joined male edge 3. It should be noted that, instead of the retaining ridge 2D formed on the side of the joined female edge 2 in the present embodiment, a non-perforated press working is performed as a projection as in the second embodiment in FIG. Needless to say, it may be constituted by a large number of projections formed by the above.

FIG. 7 shows a racking cover according to a fifth embodiment of the present invention. The basic structure of the racking cover according to the fifth embodiment is the same as that of the fourth embodiment. Joining male edge 3 to joining female edge 2 in each cover body 1
As a projection formed on the joined female edge 2 to prevent the
In the case of a ridge 2D extending in the longitudinal direction formed by rolling or a plurality of protrusions formed by non-piercing pressing, the second folded portion 2B
Is extended from the first folded portion 2A to the joining male edge 3 side to form a guide portion 2F. Further, the guide portion 2F is further folded back to form a protective edge 2E. With this configuration,
Due to the presence of the guide portion 2F formed on the joining female edge 2, when the joining male edge 3 is inserted into the joining female edge 2 and joined from the state of FIG. 7B, the entire length of the joining male edge 3 is joined to the joining female edge. The work can be safely performed without any skill since it can be joined and assembled to the tubular cover body from the state where it is once placed on the guide portion 2F of the rim 2. Furthermore, since the protection edge 2E is formed at the edge of the guide portion 2F, there is no risk of damaging a finger at the edge of the edge during assembly.

The embodiments of the present invention have been described above. However, within the scope of the present invention, the shape of the cover (a rectangular or polygonal cross section is also possible without being limited to a circular cross section), and the material (stainless steel, Rolling and non-perforating press working such as steel plate, aluminum, copper, plastic, etc.), folded form at the joining female edge, shape of protrusion at the joining female edge or joining male edge, composition and application method of heat-insulating paint, inclination The shape including the inclination angle of the cutout portion, the shape of the guide portion, the shape of the protective edge, and the like can be appropriately selected.

[0019]

As described above in detail, according to the present invention, the joining female edge formed by folding at least one of the two side edges of the long metal plate and the joining male edge formed by the other are formed. A racking cover formed by connecting a large number of cover members formed into a tubular shape by stopper joints in a longitudinal direction, the racking cover comprising a bonded female edge and a bonded male edge at a rear connection end of the cover body. In a racking cover for connecting these cover bodies so as to be relatively non-rotatable by inserting and connecting an inclined cutout portion formed at a connection edge of a front connection end portion of a cover body to be connected adjacently to the connection edge, The joint formed by a simple bending process because the protrusion formed on the joined male edge to prevent the female edge from being joined on the body is composed of a ridge extending in the length direction formed by rolling. By joining the edge and the ridge extending in the length direction at the joining male edge formed by rolling processing, the cover body can be assembled by one-touch at the site by retaining and joining, and the rear connecting end of the cover body These cover bodies can be connected so that they cannot rotate relative to each other by inserting and connecting the inclined cutouts at the front connection end of the cover body connected adjacent to the joining edge of the male and female while performing an exquisite guide function. As a result, the working efficiency is remarkably improved, and a racking cover which is robust without relative delusion between the connected cover bodies and which is excellent in strength is constituted. Moreover, the ridges at the joining male edge having a function of preventing the joining female edge from extending are extended in the length direction by rolling, and are easy to form, and there is no perforation or the like that may be corroded by rain and snow penetration. The joining is performed more securely by stopping and joining the entire length of the joining edge.

Further, in the case where the projection formed on the joining male edge for preventing the joining female edge on the cover body from coming off is constituted by a large number of projections formed by non-piercing pressing, the projection on the joining male edge is It is easily formed by non-perforation press working, and there is no perforation or the like that may be corroded by intrusion of rain and snow, and reliable joining is performed under high weather resistance. Further, in the case where the projection formed on the joining female edge for preventing the joining male edge from being removed from the joining female edge in the cover body is constituted by a ridge extending in the length direction formed by rolling, the joining female edge is The ridges are extended in the length direction by rolling, are easy to form, do not have perforations that may be corroded by intrusion of rain and snow, etc. In addition to being more reliable, the configuration of the joining male rim is relatively simplified. Furthermore, when the projection formed on the joining female edge for preventing the joining male edge from the joining female edge in the cover body is constituted by a number of projections formed by non-piercing pressing, these projections It is easily formed by non-piercing press working, there is no perforation etc. that may be corroded by the penetration of rain and snow, reliable connection is made under high weather resistance, and the configuration of the joining male edge is relatively simple Be transformed into

In the case where an inclined cutout is also formed at the joining male edge of the rear connecting end of the cover body, the inclined cutout at the front connecting end of the adjacent cover body is formed in the joining groove deep in the connecting groove. It is possible to reliably contact and reliably prevent the rotation of the adjacent cover body. Further, when a heat insulating paint is applied to at least the inner peripheral surface of the cover body, heat insulating material such as urethane foam can be omitted, and a small-diameter racking cover close to the diameter of a water pipe or a plant pipe can be used. Costs. Furthermore, when the second folded portion of the joined female edge is extended from the first folded portion toward the joining male edge to form a guide portion, when the joining male edge is inserted into the joining female edge and joined, the joining male edge is joined. Since the entire length of the rim can be joined to the tubular cover from the state where it is once placed on the guide portion of the joining female rim, the operation can be performed safely without any skill. Further, when the guide portion is further folded back to form a protective edge, there is no risk of damaging a finger at an edge portion of the edge during assembly. Thus, according to the present invention,
The work efficiency of assembly and connection is significantly improved, and a racking cover that is robust without relative delusion between connected cover bodies and has excellent strength in addition to high weather resistance is provided. .

[Brief description of the drawings]

FIG. 1 shows a first embodiment of a racking cover of the present invention, wherein FIG. 1 (A) is a perspective view of a cover body before assembly and joining, and FIG. 1 (B) is after assembly and joining. FIG. 1C is a perspective view of the tubular cover body, and FIG. 1C is an enlarged view of a portion A in FIG. 1B.

FIG. 2 is a perspective view showing a state where the tubular cover bodies are connected to each other.

FIG. 3 is a perspective view showing a use state of the racking cover of the present invention.

FIG. 4 is a perspective view of a racking cover according to a second embodiment of the present invention before being assembled.

FIG. 5 is a perspective view showing a third embodiment of the racking cover of the present invention.

FIG. 6 is a perspective view showing a racking cover according to a fourth embodiment of the present invention.

FIG. 7 is a perspective view showing a racking cover according to a fifth embodiment of the present invention.

FIG. 8 is an explanatory diagram of a racking cover on which the present invention is based.

[Explanation of symbols]

 Reference Signs List 1 cover body 2 joint female edge 2A first folded portion 2B second folded portion 2C retaining portion 2D projection 2E protective edge 2F guide portion 3 joining male edge 3A tip edge 3B projection 3C projection 3D bending edge 4 first inclined cutting Part 5 Second inclined cutting part 6 First connecting groove 7 Joining groove 8 Second connecting groove 9 Water pipe 10 Heat insulating pipe 11 Heat insulating paint 12 Third inclined cutting part 13 Connecting end 13A Rear connecting end 13B Front connecting end

Claims (8)

[Claims] 1. A cover body formed into a tubular shape by retaining and joining a joining female edge formed by folding one of both side edges of a long metal plate at least twice and a joining male edge formed on the other side in a longitudinal direction. And a front connecting end of the cover body which is adjacently connected to a connecting edge formed by a connecting female edge and a connecting male edge at a rear connecting end of the cover body. In a racking cover that connects these cover members so that they cannot rotate relative to each other by inserting and connecting the inclined cutouts formed at the joint edges of the portions, the male members are joined to the joint male edges in order to prevent the cover members from coming off from the joint female edges. A racking cover characterized in that the formed protrusion is constituted by a ridge extending in a length direction formed by rolling. 2. A cover body formed into a tubular shape by retaining and joining a joining female edge formed by folding one of both side edges of a long metal plate at least twice and a joining male edge formed on the other side thereof in a longitudinal direction. And a front connecting end of the cover body which is adjacently connected to a connecting edge formed by a connecting female edge and a connecting male edge at a rear connecting end of the cover body. In a racking cover that connects these cover members so that they cannot rotate relative to each other by inserting and connecting the inclined cutouts formed at the joint edges of the portions, the male members are joined to the joint male edges in order to prevent the cover members from coming off from the joint female edges. A racking cover, wherein the formed protrusion is constituted by a number of protrusions formed by non-piercing press working. 3. A cover body formed into a tubular shape by retaining and joining a joined female edge formed by folding one of both side edges of the long metal plate at least twice and a joined male edge formed by folding the other once. A racking cover configured by connecting a large number in the longitudinal direction, wherein a joining edge formed by a joining female edge and a joining male edge at a rear connection end of the cover body, In a racking cover for connecting these cover members so that they cannot rotate relative to each other by inserting and connecting an inclined cutout portion formed at a connection edge of a front connection end portion, a connection male edge is removed from a connection female edge of each cover body. A racking cover characterized in that a projection formed on a female joint for stopping is formed of a ridge extending in a length direction formed by a rolling process. 4. A cover body formed into a tubular shape by retaining and joining a joined female edge formed by folding one of both side edges of the long metal plate at least twice and a joined male edge formed by folding the other once. A racking cover configured by connecting a large number in the longitudinal direction, wherein a joining edge formed by a joining female edge and a joining male edge at a rear connection end of the cover body, In a racking cover for connecting these cover members so that they cannot rotate relative to each other by inserting and connecting an inclined cutout portion formed at a connection edge of a front connection end portion, a connection male edge is removed from a connection female edge of each cover body. A racking cover characterized in that a projection formed on a female joint to be stopped is formed of a large number of projections formed by non-piercing press working. 5. The racking cover according to claim 1, wherein an inclined cutout is formed also at a joining male edge of a rear connecting end of the cover body. 6. The racking cover according to claim 1, wherein a heat insulating paint is applied to at least an inner peripheral surface of the cover body. 7. A second folded portion at the jointed female edge is provided with a first folded portion.
The racking cover according to any one of claims 1 to 6, wherein the guide portion extends from the folded portion toward the joining male edge. 8. The racking cover according to claim 7, wherein the guide portion is further folded to form a protective edge.