JP3156122B2 - Protective cover for bent part of refrigerant pipe for air conditioner - Google Patents

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 provided along an outer wall of a house or the like to cover and protect the bent portion of the air conditioner refrigerant pipe. The present invention relates to a protective cover for a bent portion of a refrigerant pipe for an air conditioner which flexibly corresponds to a bent angle of a bent portion of a refrigerant pipe.

[0002]

2. Description of the Related Art Conventionally, a refrigerant pipe for an air conditioner is shown in FIG.
As shown in (1), after being taken out from the indoor unit through the outer wall surface 52 of the house and taken out of the room, piping is carried out along the outer wall surface 52 and connected to the outdoor unit 53. In this case, the window 5
4 or a door pocket or the like, the pipe is bent and detoured at 90 degrees, for example.

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

[0004]

However, this type of conventional protective cover, which is disposed around a window 54 or a door pocket, etc., has a different installation state for each house. The angle of the bend of the refrigerant pipe 51 is not always constant, for example, 90 degrees because of the relationship with the outdoor outlet, the mounting position of the window 54 or the door pocket, the installation location of the outdoor unit, and the like. On the other hand, since the protective cover is usually formed of a synthetic resin such as PVC, 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 bent frame 1.

[0005] In addition, a refrigerant pipe 5 at a corner portion of the building outer wall is provided.
1 is provided with a protective cover for the outside and inside covers that cover the cover. However, there are cases where the angle of the outer wall corner is not a fixed value, for example, an accurate right angle, based on the building structure such as the design of the building or the deformation of the building. Also in this case, the same problem as the bending angle of the refrigerant pipe 51 occurs,
Since the bending angle of the protective cover of the bent frame 1 cannot be changed, the mounting of the bent frame 1 has been difficult or impossible.

Therefore, in order to solve these problems,
JP-A-6-16800, JP-A-7-208682
The technology disclosed in Japanese Unexamined Patent Publication (Kokai) No. H10-26139 is disclosed. The technology described in these publications can flexibly change the bending angle of the bent frame body 1 attached to the corner of the refrigerant pipe 1 even if the bending angle of the corner is different depending on the construction situation of each house. Can be installed.

However, since the bent frame 1 described in these publications is constructed by combining a large number of components, the structure is complicated and the cost is high.

Accordingly, the present invention is directed to the case where the bending angle at the bent portion of the refrigerant pipe provided on the wall surface of the building differs from one building to another or when the angle at the corner of the building is not a constant value such as a right angle. It is another object of the present invention 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 mounted.

[0009]

According to the first aspect of the present invention, a protective cover for a bent portion of a refrigerant pipe for an air conditioner is mounted on a wall surface of a building via a flange, and a refrigerant pipe disposed along the wall surface. A protective cover for a bent portion of the refrigerant pipe for an air conditioner to be protected at the bent portion, wherein two hollow frame portions surrounding the refrigerant pipe are part of the peripheral wall or the inner wall on the inner peripheral side of the bent portion. It consists of a bent frame body that is connected at a part of the flange and is integrally formed in a state where the ends of the hollow frame part are separated from each other, and the bent frame body is separated from each other with the connected part as an axis. By rotating the ends of the frame so as to overlap 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 according to the first aspect has an engaging portion which engages with each other to guide the rotation. It is provided.

According to a third 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 engaging portion for guiding rotation of the two hollow frames is provided with one of the hollow frames. And a long groove of a predetermined length provided along the turning direction and an engaging projection provided on the other hollow frame portion and engaging with the long groove.

According to a fourth aspect of the present invention, a protective cover for a bent portion of a refrigerant pipe for an air conditioner is fixed to a wall surface of a building in both hollow frame portions according to any one of the first to third aspects. In this case, the insertion portions through which the fixing members are inserted are separately formed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, a bent frame body 1 has a hollow frame shape in which the whole is bent at a bending angle of substantially 90 degrees, and is covered by a bent portion of a refrigerant pipe 51 disposed on an outer wall surface 52 of a house shown in FIG. It is formed integrally with a synthetic resin such as PVC. 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 also formed in a half-cylindrical frame shape are connected at right angles by a hinge 31. The hinge 31 is formed by integral molding only on the hollow frame portion 11 and the side surface on the same side of the hollow frame portion 21.
And the hollow frame portion 21 are integrally formed, and only that portion is thinly formed. Thus, the hollow frame portion 11 and the hollow frame portion 21 can rotate in the left and right directions within a predetermined range around the hinge 31 so that the bending angle of the bending frame 1 can be changed.

The hollow frame portion 11 and the hollow frame portion 21 are provided with a hollow frame inside the hollow frame portion 21 so as to prevent interference between opposed end surfaces when the hollow frame portion 11 is rotated about the hinge 31 as an axis. The inside dimension is increased so that the end of the portion 11 can be stored, and the overlapping portions 12 and 22 are formed at the ends of the hollow frame portion 11 and the hollow frame portion 21, respectively, where the overlapping portions 12 and 22 overlap each other. . Flanges 13 and 23 are integrally formed on the opening edges on both sides of the hollow frame portion 11 and the hollow frame portion 21, respectively, and are respectively attached to the outer wall surface 52 at each flange. Holes 14 and 24 through which tapping screws and the like 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. The long hole 16 is provided with an engagement claw 26 at a position corresponding to the long hole 16 on the back surface side of the flange 25. That is, when the bent frame body 1 is bent and displaced about the hinge 31, the engagement claws 26 of the hollow frame portion 21 can move in the long holes 16 of the hollow frame portion 11. When the bent frame 1 covers the refrigerant pipe 51, the refrigerant pipe 51 is inserted from the one open end toward the other open end into a space formed between the bent frame 1 and the outer wall surface 52, It is formed in a size that can be accommodated.

Here, molding of the bent frame body 1 and storage and transportation of the molded article will be described. The bent frame 1 is a hollow frame 11
And the hollow frame portion 21 do not overlap, and the engaging claw 26 is 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. They can be integrally formed by injection molding. Here, a square hole that penetrates the upper part of the engaging claw 26 for integral molding is formed.

After being formed in this manner, the engaging pawl 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 backlash, and the engagement claw 26 prevents the hollow frame portion 21 and the hollow frame portion 21 from coming off, so that the assembled state is not released. For this reason, it will be in a stable state and a molded article can be safely stored and transported. In addition, since the moving distance of the engaging claw 26 engaging with the long hole 16 of the predetermined length is regulated, 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 bent frame 1 is prevented from being broken at the hinge 31 or the like.

Next, the operation of attaching the protective cover for the bent portion of the refrigerant pipe for the air conditioner of the present embodiment configured as described above to the outer wall surface of the house will be described. The outer wall surface 52 of the houses, FIG
As shown in FIG. 10 , a refrigerant pipe 51 is provided. In order to attach the bent frame 1 to this bent portion, first, one of the hollow frame 11 and the hollow frame 21 must be straightened on one side. Frame 5
6 and the mounting hole 14 of the flange 13 of the hollow frame portion 11 or the mounting hole 2 of the flange 23 of the hollow frame portion 21.
4, a tapping screw (not shown) is inserted and screwed to the outer wall surface 52 to be fixed. 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.
, And similarly fixed to the outer wall surface 52 using a tapping screw. At this time, the hollow frame portion 11 and the hollow frame portion 21 are guided in the rotation direction by the engagement of the elongated holes 16 and the engagement claws 26, and are reliably rotated around the thinly formed hinge 31 as an axis. Can be shifted to the bending angle. In this way, the hollow frame portion 11 and the hollow frame portion 21 are separately 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 broken by an external force such as an object hitting, the entire shape can be maintained, and the function as the protective cover is maintained.

Incidentally, in the above embodiment, the hollow frame 21
The engaging claw 26 is engaged with the long hole 16 of the hollow frame portion 11 to guide the rotation direction, and at the same time, the angle is prevented from being shifted more than a certain angle to prevent damage during storage or transportation. As shown in FIGS. 4 and 5, a long groove-shaped engaging recess 16a which does not penetrate the flange 15 of the hollow frame portion 11 is provided, and a short columnar shape engaging with the engaging recess 16a is formed in the flange 25 of the hollow frame portion 21. By forming the engaging projection 26a, the guide in the rotating direction and the movement of a predetermined angle or more can be prevented.

In place 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 relative to each other. By forming grooves and projections in the shape of irregularities, the sliding between the hollow frame portion 11 and the hollow frame portion 21 is guided, and furthermore, the movement over a certain angle can be restricted. And it does not prevent taking other measures.

[0021]

As described above, the protective cover for the bent portion of the refrigerant pipe for the air conditioner according to the above-described embodiment has two hollow frames formed with the hinges 3.
1. The bent frame 1 is integrally formed so as to be connected by the first frame 1. The bent frame 1 is rotated around the hinge 31 so that the two hollow frames overlap each other, thereby reducing the degree of bending. The two hollow frame portions have a long hole 16 as a long groove and an engagement claw 2 as an engagement protrusion.
6 is provided.

Therefore, since the bent 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 can be easily handled even if a fixed angle, for example, a right angle does not appear. And can be mounted in an optimal condition. In this embodiment, since it is formed by integral molding, the number of parts is small, and it can be covered with a very simple structure. In addition, the long hole 16 and the engagement claw 2
6. The effect of the sliding guide at the time of opening and closing by the engagement recess 16a and the engagement protrusion 26a is based on the invention according to claim 2, and the effect of preventing opening and closing at a certain angle or more is according to claim 3.
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. Bent frame 1 shown in FIGS . 6 and 7
Has a hinge 31 as a connecting portion between the hollow frame portion 11 and the hollow frame portion 21 provided on the upper surface, not on one side surface. That is, while the bent frame 1 shown in FIGS . 1 to 5 is rotated left and right around the hinge 31 provided on one side as an axis, the bent frame shown in FIGS . 6 and 7 is used . 1
Is designed to rotate vertically in the figure around a hinge 31 provided on the upper surface. This bent frame 1
In the above, the overlapping portion 1 of the hollow frame portion 11 and the hollow frame portion 21
2 and the overlapping portion 22 are formed on both left and right sides. The bent frame body 1 is suitable to be attached as a nest to the inner corner portions 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.
This will be described with reference to FIG. In the bent frame 1 shown in FIGS . 8 and 9 , the hinge 31 is formed at a connection portion between the flanges 13 and 23 provided at the opening edges of the hollow frame 11 and the hollow frame 21. This bent frame 1
The hollow frame portion 11 and the hollow frame portion 21 are formed in a substantially U-shaped cross section in the same manner as in each of the above-described embodiments.
Polymerizes on the surface. The bent frame body 1 is applied to a case where the bent frame body 1 is attached to the outer corners of two outer wall surfaces 52 which are perpendicular to each other as a protrusion.

The bent frame 1 of each of the above embodiments is
The present invention can be applied not only to the outer wall surface 52 of a house but also to a bent portion of piping related to an air conditioner disposed on an outer wall surface of a building such as a building or a warehouse. The bent frame 1 is not limited to the refrigerant pipe 1, and can be applied to a case where the bent frame is covered by a bent portion of a pipe material such as a drain tube. By inclining the drain tube for drain drainage, the opening angle of the bent portion is likely to be different, so that the effect of the present invention is similarly obtained.

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

[0028]

As described above, the protective cover for the bent portion of the refrigerant pipe for an air conditioner according to the first aspect of the present invention has a structure in which the two hollow frames surrounding the refrigerant pipe are partially formed on the inner peripheral side of the bent portion. or connected by a part of the flange, the bent frame body integrally formed in a state where the ends of the hollow frame portion are separated from each other,
The bending frame body is capable of shifting its bending degree by rotating so that the ends of the two hollow frame portions separated from each other around the connected part as an axis overlap each other. 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 can be easily mounted with a simple structure. With it, because it can be integrally molded,
It can be manufactured at low cost.

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 comprises:
In order to guide the rotation, there is provided an engagement portion which engages with each other. Therefore, in particular, it is possible to smoothly guide the rotation of the two hollow frame portions and slide the hollow frame portions with each other to change the bending angle.

According to a third aspect of the present invention, in the protective cover for a bent portion of the refrigerant pipe for an air conditioner, the engaging portion for guiding the rotation of the two hollow frames is provided on one of the hollow frames. It 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. Therefore, in particular, the rotation can be guided by a simple structure, and the angle can be prevented from being changed more than a certain angle, so that the storage can be performed in a stable state, and the transportation can be performed. can do.

According to a fourth aspect of the present invention, there is provided a protective cover for a bent portion of a refrigerant pipe for an air conditioner according to any one of the first to third aspects.
In the two hollow frame parts described in the paragraph, since the insertion part through which the fixing member for fixing to the wall surface of the building is inserted is formed separately, the connection part is formed by an external force such as an object hit. Even if is destroyed, the overall shape can be maintained and the function as a protective cover is maintained.

[Brief description of the drawings]

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

FIG. 2 is a perspective view of a protective cover of a bent portion of a refrigerant pipe for an air conditioner of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

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

FIG. 5 is a sectional view taken along the line BB of FIG. 4;

FIG . 6 is a refrigerant for an air conditioner according to another embodiment of the present invention.
It is a perspective view which shows the protection cover of a pipe bending part.

FIG . 7 is a view showing the maintenance of the bent portion of the refrigerant pipe for the air conditioner shown in FIG. 6;
It is a front view which shows a protective cover.

FIG . 8 is an air conditioner according to still another embodiment of the present invention.
It is a perspective view which shows the protection cover of a refrigerant | coolant piping bending part.

FIG . 9 is a view showing the maintenance of the bent portion of the refrigerant pipe for the air conditioner shown in FIG. 8;
It is a front view which shows a protective cover.

FIG . 10 is a refrigerant pipe disposed on an outer wall surface of a house.
It is a front view which shows the protection cover of FIG.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 5/00 F16L 57/00

Claims (4)

(57) [Claims] 1. A protection cover for a bent portion of a refrigerant pipe for an air conditioner, which is attached to a wall surface of a building via a flange and protects a refrigerant pipe disposed along the wall surface at a bent portion thereof, The two hollow frames surrounding the inner part of the bent part
The hollow frame portion is connected integrally at a part of the peripheral wall or the flange at the side, and is integrally formed in a state where ends of the hollow frame portion are separated from each other. A protective cover for a bent portion of a refrigerant pipe for an air conditioner, wherein the degree of bending can be changed by rotating the ends of the two hollow frame portions separated from each other about the portion so as to overlap each other. 2. The air-conditioning refrigerant pipe bent portion according to claim 1, wherein the two hollow frame portions have engagement portions that engage with each other to guide the rotation. Protective cover. 3. An engagement portion for guiding rotation of the two hollow frame portions includes a long groove provided in one of the hollow frame portions along the rotation direction and a groove having a predetermined length. 3. The protective cover for a bent portion of a refrigerant pipe for an air conditioner according to claim 2, wherein the cover is formed by an engaging projection provided on the second groove and engaging with the long groove. 4. The two hollow frame portions are separately formed with insertion portions through which a fixing member for fixing to a wall surface of a building is inserted.
A protective cover for a bent portion of a refrigerant pipe for an air conditioner according to any one of the above.