JP2005069340A - Piping cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a piping cover capable of preventing its demounting caused by stress without using an attachment member and the like, and effectively preventing the vertical displacement of a lid member and a base member. <P>SOLUTION: In this piping cover composed of the base member 11 divided into two into the halved cylindrical shape and the lid member 12, and having the attachment part 13 disengageably engaged with the base member 11 and the lid member 12 to connect them, a claw part 14 raised and curved inward at its both ends is mounted at a lid member 12 side of the attachment part 13, and an inclined wall part 15 inclined inward at both parts of the base member 11 and kept into contact with the claw part 14, a hook part 17 extended outward from an inclined wall part 15 end and constituting a face for sliding a tip of the claw part 14 to make the lid member 12 be rotatable on the neighborhood of the raised and curved part 16 of the lid member 12 as a supporting point when the base member 11 and the lid member 12 are engaged, and a clasp part 18 for restricting the stop of the rotation of the lid member 12 raised and curved from the hook part 17 are mounted at a base member 11 side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a piping cover, and more particularly to a piping cover that can accommodate and protect piping connected from an indoor unit to an outdoor unit of an air conditioner.

  2. Description of the Related Art Conventionally, pipe covers having various shapes and functions have been proposed as pipe covers for covering pipes such as air conditioners.

  For example, in a long pipe cover corresponding to the pipe cover of the present invention, a long body cover is proposed in which the assembled state is not released even when stress is applied from the inside to the outside (for example, Patent Document 1). . As shown in FIG. 3, the elongated body cover 30 has an engaging portion 32 bent in a letter shape on the side portion of the lid member 31, and the side portion of the cover main body 33 is in a cross section. An S-shaped engaged portion comprising a recessed portion 34 that is recessed inward and a guide portion 35 that is inclined inwardly at the end portion of the recessed portion 34 and contacts the engaging portion 32 of the lid member 31. The unit 36 is configured.

  However, in this elongate body cover 30, since the guide portion 35 of the engaged portion 36 protrudes inward, when the piping 37 or the like is stored, the heat insulating material that covers the piping 37 or the piping 37 at the tip thereof. (Not shown) may be damaged.

  On the other hand, as shown in FIG. 4, it is possible to prevent damage to piping and heat insulating material by rounding the tip of the side portion of the cover main body 41 to which the lid member 45 is attached to form a locking hole 42. A pipe housing duct 40 (corresponding to the pipe cover of the present invention) having an engaging portion 43 on the lid member 45 side and an engaged portion 44 on the cover main body 41 side that can be formed has been proposed (for example, Patent Document 2). etc).

However, the engaging portion 43 and the engaged portion 44 of the pipe housing duct 40 require screwing or the like in order to maintain the engaged state relatively firmly. And when not carrying out such screwing, an assembly state is easily cancelled | released by force acting from the inside by some next state. Further, the attachment of the pipe housing duct 40 in the vertical direction causes a new problem such that the lid member 45 slides down from the cover body 41 and the assembled state shifts.
JP 2002-228084 A Japanese Patent Laid-Open No. 9-250682

  The present invention has been made in view of the above problems, and can prevent damage to pipes and heat insulating materials when housing pipes and the like, and release assembly due to stress from the inside. Another object of the present invention is to provide a piping cover that can prevent the attachment member and the like from being attached and can effectively prevent the positional deviation between the lid member and the base member in the vertical direction.

  The present invention includes a base member and a lid member that are divided into two half cylinders so as to surround a pipe, and has a mounting portion that engages and couples the base member and the lid member in a detachable manner. In the piping cover, on the lid member side of the attachment portion, there are claw portions whose both ends are bent inward, and on the base member side, the claw portions are inclined inward at both end portions of the base member. An inclined wall portion that can be in contact with the cover member, and a lid member that extends outward from an end portion of the inclined wall portion and has a bent portion near the bent portion when the base member and the lid member are engaged with each other. A hook portion that constitutes a surface on which the tip of the claw portion can be slid, and a hook portion that bends from the hook portion and defines stoppage of rotation of the lid member. It is characterized by.

  Further, in the piping cover, the base member is inclined so that the rotation of the lid member having a fulcrum around the bent portion of the lid member when the base member and the lid member are engaged and joined is 10 to 30 °. A gap is provided between the wall portion and the collar portion.

  Further, in the piping cover, there is a gap of about 0.6 to 1.2 times the thickness of the claw portion between the claw portion and the collar portion when the base member and the lid member are engaged and joined. It is characterized by.

  Further, in the above piping cover, the tip of the claw portion of the lid member has a roundness, and the corner portion inside the hook portion and the inclined wall portion of the base member has a roundness, and the tip of the claw portion has a roundness. The roundness is smaller than the roundness of the corner portion inside the hook portion and the inclined wall portion.

  Furthermore, the piping cover is characterized in that the extending direction of the inclined wall portion of the base member and the extending direction of the hook portion intersect at an angle of 90 to 100 °.

  Further, the pipe cover is characterized in that the end of the collar portion is bent so as to wrap around inside.

  Furthermore, the said piping cover WHEREIN: The clearance gap between a collar part and a cover member is about 0.5-1 time of collar part thickness, It is characterized by the above-mentioned.

  ADVANTAGE OF THE INVENTION According to this invention, when piping etc. are accommodated in an inside, damage to piping, a heat insulating material, etc. can be avoided. In addition, the assembly is prevented from being released due to a force applied from the inside due to some kind of next state without attaching an attachment member or the like, and when the piping cover is attached in the vertical direction, It is possible to effectively prevent slippage and displacement with the base member. Further, even after the lid member and the base member are attached, the piping cover can be opened by rotating the other side portion with the one side portion of the lid member as a fulcrum. Work can be done easily. Moreover, even when the piping cover is deformed by the force from the inside, the occurrence of a V-shaped or U-shaped groove between the lid member and the base member can be suppressed as much as possible. Therefore, it is possible to prevent the aesthetic appearance from being remarkably lost or to cancel the attachment of both due to these grooves.

  In addition, the inclined wall portion and the collar portion of the base member so that the rotation of the lid member having a fulcrum in the vicinity of the bent portion of the lid member when the base member and the lid member are engaged and joined is 10 to 30 °. In addition, when the base member and the lid member are engaged with each other and coupled, the claw portion has a thickness of 0.6 to 2.0 times the claw portion thickness. When there is a gap of a certain degree, the lid member can be reliably rotated, and the workability can be further improved.

  Furthermore, the tip of the claw portion of the lid member has a roundness, the corner portion is rounded inside the hook portion and the inclined wall portion of the base member, and the roundness of the tip of the claw portion is the hook portion and the inclined wall. If it is smaller than the roundness of the inner corner of the pipe, the pipe will be pulled by external force such as tightening force when the pipe cover base member and lid member are attached, Even when the cover is deformed, the tip of the claw portion can be arranged at a rounded position between the hook portion and the inclined wall portion, and the base member and the lid member are attached (engaged state). Release can be prevented.

  Further, when the extending direction of the inclined wall portion of the base member and the extending direction of the hook portion intersect at an angle of 90 to 100 °, the base member and the lid member are engaged with each other or the lid member is rotated. When doing so, the attachment of the base member and the lid member can be satisfactorily held without the tip of the claw portion being gripped in the middle of the hook portion.

  Furthermore, when the front end of the collar portion is bent so as to wrap around inward, it is possible to regulate the stop of the rotation of the lid member, and even when the lid member rotates, the claw portion is attached to the attachment portion. The tip of the claw portion can be reliably hooked so as not to be released in step.

  In addition, when the gap between the collar part and the lid member is about 0.5 to 1 times the collar part thickness, stress such as inward or outward distortion or twist was applied to the pipe cover. Even in this case, the stress can be effectively absorbed by the deformation of the piping cover itself, and the release of the coupling due to the engagement between the base member and the lid member can be effectively prevented.

  An embodiment of the piping cover of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 (a) to 1 (c), the piping cover 10 of this embodiment includes a base member 11 that is divided into two in a half cylinder shape so as to surround the periphery of the piping (not shown). And the lid member 12, and the base member 11 and the lid member 12 are configured to have an attachment portion 13 that is detachably engaged and coupled. The shape of the piping cover 10 itself is, for example, a substantially circular shape in a cross section perpendicular to the longitudinal direction. Further, a screwing portion 19 or the like is formed on the attachment surface (bottom surface) of the pipe cover 10 to the wall surface.

  The attachment portion 13 includes a claw portion 14 whose both ends are bent inward on the lid member 12 side. The claw portion 14 here has a shape in which the vicinity of the bent portion 16 is not recessed inward on the outer surface of the pipe cover 10 itself, that is, an extreme V-shaped or U-shaped groove does not occur in the longitudinal direction. I'm going to sing. Further, when the base member 11 and the lid member 12 are engaged with each other and joined, the side surface is bent from the lid member 12 to the base member 11 so that their side surfaces are substantially flush with each other. That is, it bends so as to form a substantially acute angle. In addition, even when bent so as to constitute a substantially acute angle, the outer side and the inner side of the bent part have, for example, a circular arc of a circle having a radius of about 0.1 to 2 mm. ing.

  The claw portion 14 is formed in a thin film shape gradually or stepwise from its root, that is, from the bent portion 16 toward the tip portion. That is, the base portion has a thickness of about 0.5 to 2 mm, preferably about 1.5 mm, and the tip portion is about 5 to 30%, which is thinner than the base portion.

  The tip of the claw portion 14 is rounded. The length of the claw portion 14, that is, the distance from the bent portion 16 to the tip, is about 5 mm in the case of a pipe cover having an inner circumference of about 230 mm in a cross section orthogonal to the longitudinal direction.

  Moreover, the base member 11 side of the attachment portion 13 has inclined wall portions 15 that are inclined inward of the pipe cover 10 at both end portions thereof and can be brought into contact with the claw portions 14. The inclination angle of the inclined wall portion 15 substantially coincides with the inclination angle of the claw portion 14, and the length of the inclined wall portion 15 substantially coincides with the length of the claw portion 14.

  The inclined wall portion 15 has a hook portion 17 extending from the end thereof. The hook portion 17 is inclined and extended from the end of the inclined wall portion 15 toward the outside of the pipe cover 10. With such a configuration, when the base member 11 and the lid member 12 are engaged with each other or when the lid member 12 is rotated, the tip of the claw portion 14 is not caught in the middle of the hook portion 17, and the base member 11 and the lid The attachment with the member 12 can be favorably held. Further, the hook portion 17 has a tip of the claw portion 14 so that the lid member 12 can be rotated around the bent portion 16 of the lid member 12 when the base member 11 and the lid member 12 are engaged with each other. Is formed so as to constitute a surface that can be slid. Here, when the base member 11 and the lid member 12 are engaged with each other, the lid member 12 is turned around the bent portion 16 of the lid member 12 as a fulcrum. In FIG. When the end of the lid member 12 on the arrow A side is lifted in the direction of the arrow A, this means that the end moves while drawing a substantially arc-shaped (substantially linear) locus.

  That is, the hook portion 17 has a curved surface corresponding to a circular arc whose radius is the distance from the bent portion 16 to the tip of the claw portion 14 in a cross section orthogonal to the longitudinal direction of the pipe cover 10. Yes. The width of the curved surface, that is, the length of the arc in the cross section orthogonal to the longitudinal direction of the pipe cover 10 is, for example, 10 to 30 ° of a circle having a radius from the bent portion 16 to the tip of the claw portion 14 as a radius. It is slightly longer than the length corresponding to the arc of the degree (see arrow B in FIG. 1B). The surface on which the tip of the claw portion 14 can be slid is not limited to a curved surface, and may be a straight flat surface or a substantially flat surface whose surface is not bent because the sliding distance is short.

  Further, the base member 11 is rounded from the hook portion 17 to the inclined wall portion 15. In this case, the degree of roundness is preferably larger than the roundness when the tip of the claw portion 14 has roundness. Specifically, it is appropriate to have a round shape with a circular arc having a radius of about 0.2 to 4 mm. As described above, when the pipe cover 10 is larger than the roundness at the tip of the claw portion 14, even when the piping cover 10 is deformed by an external force such as a tightening force when the base member 11 and the lid member 12 are attached, or a pipe slippery. The tip of the claw portion 14 can be arranged at a rounded position between the hook portion 17 and the inclined wall portion 15, and the attachment (engaged state) between the base member 11 and the lid member 12 is released. Can be prevented.

  A hook portion 18 extends from the end of the hook portion 17. The collar portion 18 is formed so as to bend from the hook portion 17 and regulate the stop of the rotation of the lid member 12. From another point of view, the collar portion 18 is formed to hook the tip of the claw portion 14 so that the claw portion 14 is not released at the attachment portion 13 even when the lid member 12 is rotated. From yet another point of view, the flange portion 18 abuts the claw portion 14 when the claw portion 14 of the lid member 12 is attached to the base member 11 in the outer portion 18a of the bent portion, and further, the claw portion 14 is predetermined. It is formed so as to guide to the position. In order for the collar part 18 to realize all of these functions, the tip of the collar part 18 is bent and formed so as to wrap around inside.

  The flange portion 18 is a case where the base member 11 and the lid member 12 are engaged with each other, and when the vicinity of the bent portion 16 of the lid member 12 is used as a fulcrum, the flange portion 18 is connected to the inclined wall portion 17 of the base member 11. There is a gap (see part C in FIG. 1B) between them. This gap can be appropriately adjusted depending on the thickness of the claw portion 14 and the size of the flange portion 18. For example, the rotation of the lid member 12, that is, the angle indicated by the arrow B in FIG. 1B is about 20 °. Thereby, the space for rotation of the cover member 12 is securable.

  Moreover, the collar part 18 is formed so that the clearance gap (D part of FIG.1 (b)) between the cover members 12 may be set to about 0.5 to 1 times the thickness of the collar part 18. Is preferred. Thereby, even when stress such as inward or outward distortion or twist is applied to the pipe cover 10, the stress can be absorbed by deformation of the pipe cover 10 itself, and the base member 11 and the lid member 12. Can be effectively prevented from being released by meshing.

  In order to attach the pipe cover 10 to the wall surface, the screwing portion 19 formed on the base member 11 is recessed at the inside of the pipe cover 10 as shown in FIG. The screwing portion 19 itself is formed so as not to contact the wall surface. The screwing portion 19 has a portion 19a that penetrates the screw tip and the screw shaft, and a portion 19b that receives the screw head at a predetermined distance from the portion 19a. Since the screwing portion 19 is formed in a double manner as described above, when the pipe cover 10 is attached to the wall surface with a screw, a portion 19a that penetrates the screw tip and the screw shaft as the screw is tightened is provided on the screw head. Will be attracted to the receiving portion 19b, that is, inward. In addition, due to the reaction, the contact surface to the wall surface of the base member 11 other than the threaded portion presses the wall surface, and further, the reaction causes a stress that the side surface of the base member 11 tends to spread outward. . Thereby, when the lid member 12 is engaged with the base member 11 and attached, the engagement of the lid member 12 with the base member 11 becomes strong. For example, even when the piping cover 10 is attached in the vertical direction, It is possible to prevent the cover member 12 from slipping, that is, vertically shifted, and exposing the contents such as the piping at the upper joint portion.

When screwing the pipe cover 10 to the wall surface, the portion 19a that penetrates the screw tip and the screw shaft is a thin film that is torn and opens a hole by inserting the screw relatively easily. It is formed at an appropriate interval.
The portion 19b that receives the screw head has a width smaller than the diameter of the screw shaft and is continuously formed in the slit shape in the longitudinal direction. As a result, when screwing, the screw tip can be caught in the portion 19b that receives the screw head, and the screw can be prevented from falling over, and the screwing operation can be facilitated.

  The pipe cover 10 may have any shape such as a substantially elliptical shape, a polygonal shape, a rectangular shape, and a substantially rectangular shape in addition to a substantially circular shape in a cross section perpendicular to the longitudinal direction. In addition, stripes or groove-like decorations may be provided on a part of the side surface, bottom surface, top surface, and the like. Furthermore, a screwing hole for attaching the pipe cover 10 to a wall surface or the like, which is different from the shape of the screwing part 19, may be formed.

  The base member 11 and the lid member 12 are usually made of a material used for a piping cover, for example, a slightly hard material or a slightly soft material that can be elastically deformed, specifically, depending on the thickness. , Resin, rubber, and in some cases, sheet metal or the like. Further, the thickness is not particularly limited, but for example, it is appropriate that most of the thickness is about 0.5 to 5 mm, and partly a thin film or a thick film. Also good.

  The bend for forming the claw portions 14 at both ends of the lid member 12 in the attachment portion 13 can be set to an extent that forms a substantially acute angle of about 85 to 60 °, for example.

  Further, although the degree of roundness at the tip of the claw part 14 depends on the thickness of the tip part of the claw part, it is appropriate to have a round shape with a circular arc having a radius of about 0.1 to 2 mm. The length of the claw portion 14 can be appropriately adjusted according to the size of the pipe cover, the thickness of the claw portion 14 or the lid member 12, the bending angle, and the like. Specifically, in the case of a pipe cover having an inner circumference of about 100 to 1000 mm in a cross section orthogonal to the longitudinal direction, about 2 to 100 mm is appropriate.

  On the base member 11 side of the mounting portion 13, not all of the claw portions 14 may be in contact with the inclined wall portion 15, and only a part thereof may be in contact with the shape of the claw portion 14. That's fine.

  The hook portion 17 is inclined and extended from the end of the inclined wall portion 15 toward the outside of the pipe cover 10. In this case, the extending direction of the inclined wall portion 15 and the extending direction of the hook portion 17 are provided. It is appropriate to extend so as to intersect at an angle of 90 to 100 °. With such a configuration, it is possible to hold the base member 11 and the lid member 12 more favorably.

  The gap (see portion C in FIG. 1B) between the flange portion 18 and the inclined wall portion 17 of the base member 11 depends on the thickness of the claw portion 14, the size of the flange portion 18, and the like. It can be adjusted appropriately. For example, it is appropriate that the rotation of the lid member 12, that is, the angle indicated by the arrow B in FIG. From another point of view, the length represented by part C in FIG. 1B is about 0.6 to 2.0 times, preferably 0.6 to 1.2 times the thickness of the claw part 14. It may be a degree. Thereby, rotation of the cover member 12 is made more reliable, and attachment workability is improved.

Holes may be formed at predetermined intervals in the portion 19a that penetrates the screw tip and the screw shaft. Moreover, you may form as a thin film continuous over the longitudinal direction. In the portion 19b that receives the screw head, holes having a diameter smaller than the diameter of the screw shaft may be formed at a predetermined interval, and when the pipe cover 10 is screwed to the wall surface, the screw can be relatively easily attached. It may be formed in a thin film shape that is torn and opened by insertion. As a result, when screwing, the screw tip can be caught in the portion 19b that receives the screw head, and the screw can be prevented from falling over, and the screwing operation can be facilitated.
(Modified example)

  For example, as shown in FIG. 2, the piping cover of the present invention includes a base member 21, a lid member 22, and a mounting portion 23 that are substantially the same as the piping cover 10 shown in FIG. 1. The width in the direction orthogonal to the width may be wide, and a plurality of, for example, three screwing portions may be provided in the width direction. In this case, both sides of the wall surface mounting surface of the base member 21 have the same threaded portions 29 as described above, and are recessed inside the pipe cover 20 only in the middle so as not to contact the wall surface. It is preferable that 29c is formed. As a result, when each of the screwing portions 29 and 29c is screwed, the stress that tends to spread outward on the side surface of the base member 21 due to the generation of the partial stress as described above is further promoted. 22 slippage, that is, longitudinal shift can be prevented.

  The piping cover of the present invention can be used in a wide range of fields, not only as air conditioning piping but also as various piping such as water pipes, hot water supply pipes, gas pipes, and decorative covers such as electric wires.

It is sectional drawing and the perspective view which show the Example of the piping cover of this invention. It is sectional drawing which shows the modification of the piping cover of this invention. It is sectional drawing which shows the conventional elongate body cover. It is sectional drawing which shows the conventional piping accommodation duct.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 20 Piping cover 11, 21 Base member 12, 22 Lid member 13, 23 Attachment part 14 Claw part 15 Inclined wall part 16 Curved part 16a Point 17 Hook part 18 Gutter part 18a Outside part 19, 29 Screwing portion 19a, 29a Screw tip and screw shaft penetration portion 19b, 29b Screw head receiving portion

Claims (7)

In a pipe cover comprising a base member and a lid member that are divided into two half cylinders so as to surround the pipe, and having an attachment part that these base members and the lid member are detachably engaged and coupled,
On the lid member side of the mounting portion, there are claw portions whose both ends are bent inward, and on the base member side, the claw portions can be inclined inward at both end portions of the base member. An inclined wall portion, extending from the end of the inclined wall portion toward the outside, and the lid member is rotatable around the bent portion of the lid member when the base member and the lid member are engaged with each other. A pipe cover comprising a hook portion that forms a surface on which the tip of the claw portion can be slid, and a flange portion that bends from the hook portion and defines the stop of rotation of the lid member . When the base member and the lid member are engaged with each other and joined together, the lid member has an inclined wall portion and a flange portion so that the lid member rotates about 30 to 30 degrees with the vicinity of the bent portion of the lid member as a fulcrum. The piping cover according to claim 1, wherein a gap is provided therebetween. The piping cover according to claim 1, wherein a gap of about 0.6 to 2.0 times the thickness of the claw portion is provided between the claw portion and the collar portion when the base member and the lid member are engaged with each other and joined. . The tip of the claw portion of the lid member has a roundness, the corner portion inside the hook portion and the inclined wall portion of the base member has a roundness, and the roundness at the tip of the claw portion has a hook portion and an inclined wall portion. The piping cover according to any one of claims 1 to 3, wherein the piping cover is formed to be smaller than a roundness of a corner portion on the inside. The piping cover according to any one of claims 1 to 4, wherein the extending direction of the inclined wall portion of the base member and the extending direction of the hook portion intersect at an angle of 90 to 100 °. The piping cover according to any one of claims 1 to 5, wherein the end of the collar portion is bent so as to wrap around inside. The piping cover according to any one of claims 1 to 6, wherein a gap between the collar portion and the lid member is about 0.5 to 1 times the collar thickness.

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