JPH09166337A - Protective cover of bend part of refrigerant piping for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable fitting of this protective cover by a simple construction and with flexibility even in the case when a bending angle of a bend part of a refrigerant piping provided on the wall surface of a building differs according to the building or when an angle at a corner part of the building is not a prescribed value such as a right angle. SOLUTION: This protective cover is constituted of a bending frame body 1 having a hollow frame part 11 and a hollow frame part 21 formed integrally to be connected by a hinge, and the degree of bending of the bending frame body 1 can be changed by rotating the two hollow frame parts around the hinge as the axis so that they may overlap each other. The two hollow frame parts are equipped respectively with an engagement part made up of a long slot 16 and an engaging pawl 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective cover for a bent portion of an air conditioner refrigerant pipe, which covers and protects a bent portion of a refrigerant pipe for an air conditioner arranged along an outer wall surface of a house or the like, and more particularly, The present invention relates to a protective cover for a bent portion of a refrigerant pipe for an air conditioner that flexibly responds to a bent angle of the bent portion of the refrigerant pipe.

[0002]

2. Description of the Related Art Conventionally, a refrigerant pipe for an air conditioner is shown in FIG.
As shown in FIG. 5, after being taken out from the indoor unit through the outer wall surface 52 of the house to the outside of the house, it is piped along the outer wall surface 52 and connected to the outdoor unit 53. In this case, the window 5
If there are 4 or door pockets, the pipe is bent around 90 degrees and bypassed.

On the other hand, the refrigerant pipe 51 for the air conditioner arranged on the outer wall surface 52 of the house is, from the viewpoint of protection and aesthetics,
A protective cover made of a half frame or a tubular frame that covers the outside is attached. The protective cover is composed of an outlet cover body 55, a straight frame body 56 attached to a straight line portion of the refrigerant pipe 51, and a bent frame body 1 attached to a bent portion.

[0004]

However, in the conventional protective cover of this type, which is arranged bypassing the window 54 or the door pocket, etc., the installation state is different for each house. Due to the relationship with the outdoor outlet, the mounting position of the window 54 or door pocket, the installation location of the outdoor unit, etc., the bending angle of the refrigerant pipe 51 is not always constant, for example, 90 degrees. On the other hand, since the protective cover is usually made of a synthetic resin such as vinyl chloride, the bending angle of the bending frame 1 cannot be displaced in accordance with the bending angle of the refrigerant pipe 51 at the construction site. Therefore, in such a case, it is difficult or impossible to attach the bending frame 1.

The refrigerant pipe 5 at the corner of the outer wall of the building
1 is provided with a protective cover for the projection and the projection for covering the projection. However, there is a case where the angle of the outer wall corner portion is not a constant value, for example, an accurate right angle, based on the structure of the building such as the design of the building or the deformation of the building. In this case also, the same problem as the bending angle of the refrigerant pipe 51 occurs,
Since the protective cover of the bending frame 1 cannot change the bending angle, it is difficult or impossible to attach the bending frame 1.

Therefore, in order to solve these problems,
Japanese Utility Model Laid-Open No. 6-16800 and Japanese Patent Laid-Open No. 7-208682.
The technology disclosed in Japanese Patent Publication is disclosed. The technology disclosed in these publications can change the bending angle of the bending frame 1 attached to the corner portion of the refrigerant pipe 1. Therefore, even if the bending angle of the corner portion differs depending on the construction situation of each house, it is possible to flexibly cope with it. Can be installed.

However, since the bending frame 1 disclosed in these publications is constructed by combining a large number of parts, the structure is complicated and the cost is high.

Therefore, the present invention is applicable to the case where the bending angle of the refrigerant pipe arranged on the wall surface of the building is different for each building, or the angle at the corner of the building is not a constant value such as a right angle. Another object is to provide a protective cover for a bent portion of a refrigerant pipe for an air conditioner, which has a simple structure and can be flexibly attached.

[0009]

A protective cover for a bent portion of a refrigerant pipe for an air conditioner according to the present invention is attached to a wall surface of a building, and a refrigerant pipe arranged along the wall surface is provided at the bent portion. A protective cover for a bent portion of a refrigerant pipe for an air conditioner to be protected, which comprises a bent frame body integrally formed so that two hollow frame portions covering the refrigerant pipe are partially connected, and the bent frame body, By rotating the hollow frame portions so that the hollow frame portions are overlapped with each other, the degree of bending can be changed.

According to a second aspect of the present invention, there is provided a protective cover for a bent portion of a refrigerant pipe for an air conditioner, wherein the hollow frame portion according to the first aspect has engaging portions which engage with each other to guide the rotation. Be prepared.

In the protective cover of the bent portion of the refrigerant pipe for an air conditioner according to the invention of claim 3, the engaging portion for guiding the rotation of both hollow frame portions according to claim 2 has one of the hollow frame portions. Is formed by a long groove of a predetermined length provided along the rotation direction and an engaging projection provided on the other hollow frame portion and engaging with the long groove.

The protective cover for the bent portion of the refrigerant pipe for the air conditioner according to the invention of claim 4 is for fixing to the wall surface of the building in the both hollow frame portions according to any one of claims 1 to 3. The insertion parts through which the fixing members of are inserted are formed separately.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. In the figure, the bending frame body 1 has a hollow frame shape in which the entire body is bent and formed at a bending angle of about 90 degrees, and is installed on the bending portion of a refrigerant pipe 51 arranged on the outer wall surface 52 of the house shown in FIG. And is integrally formed of a synthetic resin such as vinyl chloride. The bent frame body 1 is a hollow frame portion 1 formed in a half-cylinder shape having a substantially U-shaped cross section.
1 and a hollow frame portion 21, which is also formed in the shape of a half-cylinder, are connected by a hinge 31 in a right angle direction. The hinge 31 is integrally formed only on the same side surface of the hollow frame portion 11 and the hollow frame portion 21 by integral molding.
Also, it is integrally formed with the hollow frame portion 21, and only that portion is thinly formed. As a result, the hollow frame portion 11 and the hollow frame portion 21 can be rotated in the left-right direction within a predetermined range about the hinge 31 as an axis to displace the bending angle of the bending frame body 1.

Further, the hollow frame portion 11 and the hollow frame portion 21 have hollow frames inside the end portions of the hollow frame portion 21 in order to prevent interference of the end surface portions facing each other when the hollow frame portion 11 and the hollow frame portion 21 rotate about the hinge 31. The inner dimension is made large so that the end of the portion 11 can be stored, and the end portions of the hollow frame portion 11 and the hollow frame portion 21 are respectively formed with a superposing portion 12 and a superposing portion 22 which are superposed in this portion. . The flange 13 and the flange 23, which come into contact with the outer wall surface 52 of the house, are integrally formed at the opening edge portions on both sides of the hollow frame portion 11 and the hollow frame portion 21, respectively, and are attached to the outer wall surface 52 on each flange. A mounting hole 14 and a mounting hole 24 through which a tapping screw or the like for insertion are inserted.

Further, on the outside of the bending of the bending frame 1,
As shown in FIGS. 2 and 3, the hollow frame portion 11 and the hollow frame portion 21 are formed with a flange 15 and a flange 25 that overlap with each other when rotated, and the flange 15 is formed along the rotation direction. An elongated hole 16 is provided, and an engaging claw 26 is provided on the back surface side of the flange 25 at a position corresponding to the elongated hole 16. That is, when the bending frame body 1 is bent and displaced about the hinge 31, the engaging claw 26 of the hollow frame portion 21 can move in the elongated hole 16 of the hollow frame portion 11. In addition, when the bending frame 1 covers the refrigerant pipe 51, the refrigerant pipe 51 is inserted from the one end of the opening toward the other end of the opening in the space formed between the bending frame 1 and the outer wall surface 52. It has a size that can be stored.

Here, the molding of the bending frame 1 and the storage and transportation of the molded product will be described. The bending frame body 1 is a hollow frame portion 11.
And the hollow frame portion 21 are not overlapped with each other and the engaging claws 26 are not engaged with the long hole 16, that is, in a state where the end portions of the hollow frame portion 11 and the hollow frame portion 21 are slightly separated from each other. It can be integrally formed by injection molding. Here, the upper portion of the engaging claw 26 is formed with a square hole that penetrates for integral molding.

After forming in this way, the engaging claw 26
Is fitted into the long hole 16. In this assembled state,
Since the hollow frame portion 11 and the hollow frame portion 21 do not separate from each other, there is no rattling, and the engagement claws 26 prevent the hollow frame portion from coming off, the assembled state is not released. Therefore, a stable state is achieved, and the molded product can be safely stored and transported. Moreover, since the moving distance of the engaging claw 26 that engages with the long hole 16 having a predetermined length is restricted, the hollow frame portion 11 and the hollow frame portion 21 are opened or closed at a certain angle or more. As a result, the bending frame 1 is prevented from being damaged at the hinge 31 and the like.

Next, the operation of attaching the protective cover of the bent portion of the refrigerant pipe for the air conditioner of the present embodiment constructed as described above to the outer wall surface of the house will be described. As shown in FIG. 11, a refrigerant pipe 51 is disposed on the outer wall surface 52 of the house. To mount the bending frame body 1 on this bending portion, first, the hollow frame portion 11 and the hollow frame portion 21 are to be attached. Either one of the straight frame bodies 5 on one side
6 is held at the end of the hollow frame 11, and the mounting hole 14 of the flange 13 of the hollow frame 11 or the mounting hole 2 of the flange 23 of the hollow frame 21.
4, a tapping screw (not shown) is inserted and screwed and fixed to the outer wall surface 52. Next, while adjusting the bending angle of the bending frame body 1 via the hinge 31 on the other side, the straight frame body 56 on the other side is adjusted.
To the outer wall surface 52 using a tapping screw as well. At this time, the hollow frame portion 11 and the hollow frame portion 21 are guided by the engagement of the elongated hole 16 and the engagement claw 26 in the rotation direction to reliably rotate about the hinge 31 formed thinly, and arbitrarily. Can be changed to the bending angle of. In this way, the hollow frame portion 11 and the hollow frame portion 21 are independently and independently attached to the outer wall surface 52, and the bending angle is stably maintained at a constant value. As a result, even if the connecting portion is destroyed by an external force such as hitting an object, the entire shape can be maintained and the function as a protective cover is maintained.

By the way, in the above embodiment, the hollow frame portion 21
The engaging claws 26 are engaged with the elongated holes 16 of the hollow frame portion 11 to guide the rotation direction, and the angular displacement beyond a certain level is prevented to prevent damage during storage or transportation. As shown in FIGS. 4 and 5, a long groove-shaped engagement concave portion 16a that does not penetrate the flange 15 of the hollow frame portion 11 is provided, and a short columnar shape that engages with the engagement concave portion 16a on the flange 25 of the hollow frame portion 21. By forming the engaging protrusion 26a, it is possible to prevent the guiding in the turning direction and the movement over a certain angle.

Further, instead of or in combination with the engagement between the elongated hole 16 and the engaging claw 26, the upper surface or the side wall surface on which the hollow frame portion 11 and the hollow frame portion 21 slide with each other. It is possible to guide the sliding between the hollow frame portion 11 and the hollow frame portion 21 by forming concave and convex grooves and protrusions on the inner surface of the hollow frame portion 21 and to restrict movement of a certain angle or more. And it does not prevent taking other measures.

In addition, the flange 15 provided with the elongated hole 16 and the flange 25 provided with the engaging claw 26 are provided on the outer side of bending,
Although the hinge 31 is provided on the inner side of the bend, as shown in FIG.
It is also possible to provide the flange 15 and the flange 25 on the inside of the bend and the hinge 31 on the outside of the bend hidden in the drawing.

As described above, in the protective cover for the bent portion of the refrigerant pipe for the air conditioner of the above embodiment, the two hollow frame portions are hinges 3.
The bending frame body 1 is integrally formed so as to be connected by 1, and the bending frame body 1 is rotated about the hinge 31 so that both hollow frame portions are overlapped with each other, so that the bending degree of the bending frame body 1 is increased. Both of the hollow frame portions are made movable, and the long holes 16 as long grooves and the engaging claws 2 as engaging protrusions are provided.
6 is provided with an engaging portion.

Therefore, since the bending frame 1 can be adjusted to an arbitrary bending angle, the bending angle of the corner portion of the refrigerant pipe 51 varies from house to house, and it is possible to easily cope with it even if the fixed angle, for example, the perpendicularity does not appear. And can be installed in the optimum condition. In the present embodiment, since it is formed by integral molding, the number of parts is small and it is possible to cover with an extremely simple structure. The long hole 16 and the engaging claw 2
6, the effect of sliding guide at the time of opening and closing by the engaging concave portion 16a, the engaging projection 26a, etc. is based on the invention of claim 2, and the effect of preventing opening and closing at a certain angle or more is claimed in claim 3.
It is based on the invention described in 1.

Next, another embodiment of the present invention will be described with reference to FIGS.
It will be described based on. Bending frame 1 shown in FIGS. 7 and 8.
Is provided with a hinge 31 as a connecting portion between the hollow frame portion 11 and the hollow frame portion 21, not on one side surface but on the upper surface. That is, the bending frame body 1 shown in FIGS. 1 to 6 is rotated in the left-right direction in the drawings around the hinge 31 provided on one side surface, whereas the bending frame body shown in FIGS. 7 and 8 is used. 1
In the figure, the hinge 31 provided on the upper surface is used as a shaft to rotate in the vertical direction in the figure. This bent frame 1
In, the hollow frame portion 11 and the hollow frame portion 21 are overlapped with each other.
2 and the overlapping portion 22 are formed on both left and right side surfaces. This bending frame body 1 is suitable for being fitted as a recess on the back side corners of two orthogonal outer wall surfaces 52, and the perpendicularity formed between the two orthogonal outer wall surfaces 52 is exactly 90 degrees. Especially when not in effect.

Next, still another embodiment of the present invention will be described with reference to FIGS. 9 and 10. In the bending frame body 1 shown in FIGS. 9 and 10, the hinge 31 has the hollow frame portion 11 and the hollow frame portion 21.
13 and flange 23 provided on the opening edge of the
Is formed at the connecting portion of. The hollow frame portion 11 and the hollow frame portion 21 in the bending frame body 1 are formed in a substantially U-shaped cross section as in the above-described embodiments, and the overlapping portion 12 is formed.
The overlapping portion 22 is overlapped on the upper surface and the both side surfaces at the opposite ends. The bending frame body 1 is applied to a case where the bending frame body 1 is attached to the outer corner portion of two orthogonal outer wall surfaces 52 as a protrusion.

By the way, the bending frame 1 of each of the above-mentioned embodiments is
The invention can be applied not only to the outer wall surface 52 of a house but also to a bent portion of a pipe related to an air conditioner arranged on the outer wall surface of a building such as a building or a warehouse. The bending frame 1 is not limited to the refrigerant pipe 1, and can be applied to the case where the bending frame 1 is provided so as to cover the bending portion of a pipe material such as a drain tube. Since the opening angle of the bent portion is likely to differ by tilting the drain tube for drain drainage, the effect of the present invention can be similarly obtained.

The hollow frame portion 11 and the hollow frame portion 21
Is a one-sided opening having a substantially U-shaped cross section, but is not limited to this shape, and may be a tubular frame such as a square tube or a hexagonal tube.

[0028]

As described above, in the protective cover for the bent portion of the refrigerant pipe for an air conditioner according to the first aspect of the present invention, the bent portion integrally formed so that two hollow frame portions covering the refrigerant pipe are partially connected. The bending frame body is made of a frame body, and the bending degree of the bending frame body can be changed by rotating the hollow frame portions so that the hollow frame portions overlap each other around the connected portions.
Therefore, even if the bending angle of the refrigerant pipe is different for each house or the like, the bending angle can be continuously and arbitrarily changed and can be flexibly mounted, and the structure is simple and easy to mount. At the same time, since it can be integrally molded, it can be manufactured at low cost.

In the protective cover for the bent portion of the refrigerant pipe for an air conditioner according to the second aspect of the present invention, the hollow frame portion according to the first aspect is
It is provided with an engaging portion which engages with each other in order to guide the rotation. Therefore, in particular, it is possible to smoothly guide the rotation of both hollow frame portions and slide them relative to each other to change the bending angle.

In the protective cover for the bent portion of the refrigerant pipe for an air conditioner according to the third aspect of the present invention, the engaging portion for guiding the rotation of both hollow frame portions according to the second aspect is provided in one of the hollow frame portions. It is formed by a long groove of a predetermined length provided along the rotation direction and an engagement projection provided on the other hollow frame portion and engaging with the long groove. Therefore, in particular, it is possible to guide the rotation with a simple structure, prevent angular displacement of a certain angle or more, and store in a stable state for transportation and the like, thus preventing damage. can do.

The protective cover for the bent portion of the refrigerant pipe for an air conditioner according to the invention of claim 4 is any one of claims 1 to 3.
In the both hollow frame parts described in the paragraph, since the insertion parts through which the fixing members for fixing to the wall surface of the building are inserted are formed respectively, the connecting part is formed by an external force such as hitting an object. Even if it is destroyed, the entire shape can be maintained and the function as a protective cover is retained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a protective cover for a bent portion of a refrigerant pipe for an air conditioner according to an embodiment of the present invention, as viewed from the inside of the bent portion.

FIG. 2 is a perspective view of the protective cover of the bent portion of the refrigerant pipe for the air conditioner of FIG. 1, as viewed from the bent outer side.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view showing a modified example of the engaging portion of FIG.

5 is a cross-sectional view taken along the line BB of FIG.

FIG. 6 is a perspective view showing a modified example of the protective cover of the bent portion of the refrigerant pipe for the air conditioner of FIG. 1.

FIG. 7 is a perspective view showing a protective cover for a bent portion of a refrigerant pipe for an air conditioner according to another embodiment of the present invention.

8 is a front view showing a protective cover of a bent portion of the refrigerant pipe for an air conditioner of FIG. 7.

FIG. 9 is a perspective view showing a protective cover for a bent portion of a refrigerant pipe for an air conditioner according to still another embodiment of the present invention.

10 is a front view showing a protective cover of a bent portion of the refrigerant pipe for an air conditioner of FIG. 9.

FIG. 11 is a front view showing a protective cover for a refrigerant pipe arranged on the outer wall surface of a house.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bending frame 11, 21 Hollow frame 12, 22 Overlapping part 16 Long hole 16a Engagement recess 26 Engagement claw 26a Engagement protrusion 31 Hinge 51 Refrigerant pipe 52 Outer wall surface

Claims (4)

[Claims] 1. A protective cover for a bent portion of a refrigerant pipe for an air conditioner, which is attached to a wall surface of a building and protects a refrigerant pipe arranged along the wall surface at a bent portion thereof, the cover covering the refrigerant pipe. The two hollow frame parts are integrally formed with a bent frame body so as to be connected to each other, and the bent frame body is rotated about the connected part so that both hollow frame parts overlap with each other. By doing so, the degree of bending can be changed, and the protective cover for the bent portion of the refrigerant pipe for an air conditioner is characterized. 2. The air conditioner refrigerant pipe bent portion according to claim 1, wherein the both hollow frame portions are provided with engaging portions that engage with each other to guide the rotation. Protective cover. 3. An engaging portion for guiding the rotation of both hollow frame portions is a long groove of a predetermined length provided in one of the hollow frame portions along the rotation direction, and the other hollow frame portion. The protective cover for the bent portion of the refrigerant pipe for an air conditioner according to claim 2, wherein the protective cover is formed by an engaging projection that is provided on the engaging groove and that engages with the long groove. 4. The both hollow frame portions are separately formed with insertion portions through which fixing members for fixing to the wall surface of the building are inserted.
A protective cover for a bent portion of a refrigerant pipe for an air conditioner described in any one of 1.