JP3534002B2 - Duct connection member - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duct connecting member for connecting ducts.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 12, a duct 1 for covering piping of an air conditioner has different vertical and horizontal lengths in cross section. Then, the bottom having the longer width is attached to the attachment base surface 11 such as a wall surface or a ceiling surface. On the other hand, the duct connecting member 2 ′ that connects the ducts 1 to each other is provided with the connecting portions 3 ′ having a shape that allows the ends of the duct 1 to be fitted tightly at both ends, and the ducts 1 to 1 They are connected by being fitted in the connection parts 3 at both ends of the '. However, in the past, connection was not possible unless the ducts 1 had the same cross-sectional orientation, and connection was not possible when the ducts 1 had different cross-sectional orientations.

When mounting the duct 1 on the mounting base surface 11, for example, in FIG. 12, the duct 1a is mounted by abutting the A-side surface of the duct mounting base surface 11 with the bottom surface of the duct 1 having the longer width. Conveniently, and also duct 1b
There is a case where the A side has some obstacle and the bottom side of the duct 1b having the longer width must be abutted and attached to the B side. In such a case, in the conventional duct connecting member 2 '. It is not possible to connect the ducts 1 having different cross-sectional orientations, and the duct connecting member 2 ′ different from the duct connecting member 2 ′ for connecting the ducts 1 having the same cross-sectional orientation is used for connection. However, there is a problem that a large number of members are required.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and the same duct connecting member is used regardless of whether the ducts have the same cross-sectional orientation or different orientations. It is possible to connect, and it is possible to hide the gap with a simple structure to improve the appearance and prevent dirt and insects from entering from the connection part. It can be secured with fasteners such as wood screws, and is easy to manufacture and has
An object of the present invention is to provide a duct connecting member having a small number of types of members.

[0005]

In order to solve the above problems, a duct connecting member according to the present invention is a duct connecting member 2 for connecting ducts 1 to each other, and a plurality of ducts 1
There has a plurality of connecting portions 3 which are respectively connected, the connection portion 3,
且 a duct 1 the length and width are different in cross-section in the cross section vertical or either orientation and a magnitude which can also be connected of sideways
Between the inner surface of the three connecting portion 3 and the outer surface of the duct 1
Shape so that 8 has the same shape regardless of the direction of duct 1.
And the fitting member 4 is fitted in the gap 8 . In the structure like this, cross-section vertical duct 1 or in any case transverse can be connected by a common duct connecting member 2, one of the duct 1 is cross section vertically, or connect the other duct 1 in relation to cross-section is horizontal, the two ducts 1 or connected by Ru relationship name and any vertical cross section, so that both the two ducts 1 section is transverse relationship The common duct connecting member 2 can connect the ducts 1 in various forms such as connection. Well
In addition, the gap between the outer surface of the end of the duct 1 and the inner surface of the connecting portion 3
The space 8 has the same shape as the fitting member 4 regardless of the direction of the duct 1.
It can be closed with.

[0006]

It is preferable that the fitting member 4 seals the gap 8 formed between the inner surface of the connecting portion 3 and the outer surface of the duct 1. With such a structure, the fitting member 4 can hermetically close the gap 8 between the outer surface of the end of the duct 1 and the inner surface of the connecting portion 3.

[0008]

Further, the duct connecting member 2 is divided into two to form two divided bodies 5, and the opposing side pieces 6 of the divided body 5 are formed so as not to overlap each other in the opposing direction. It is preferable to provide a screwing portion 7 on the wall surface. With such a configuration, a screw is screwed into the screw fixing portion 7 provided on the other side piece 6 without being disturbed by one side piece 6 of the opposite side pieces 6 and fixed to the wall of the building or the like. Is something that can be done.

Further, it is preferable that the two divided bodies 5 divided into two have the same shape. With such a configuration, the two divided bodies 5 can be formed by a single mold.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.

In the embodiment shown in the accompanying drawings, an example of a duct (decorative cover) for protecting piping such as an air conditioner is shown as the duct 1. Duct 1 is PVC or AB
It is made of a synthetic resin such as S and has a cross-section with different vertical and horizontal lengths (where M is the vertical length and N is the horizontal length in FIG. 2, N > M ). In addition, in the embodiment shown in the accompanying drawings, the duct 1 has a substantially U-shaped cross section, and the duct body 9 has a U-shaped cross section.
0 is detachably locked by an arbitrary locking means 14 and attached.

A duct connecting member 2 for connecting a plurality of ducts 1 has a plurality of connecting portions 3 for fitting and connecting the ends of the duct 1, and in the embodiment shown in the accompanying drawings, FIG. It has a straight tubular shape as shown in FIG. 1A or an L tubular shape as shown in FIG.
Is provided. The plurality of connecting portions 3 provided in the duct 1 have the same cross-sectional shape, and the vertical and horizontal lengths of the connecting portions 3 are the same. That is, the vertical and horizontal lengths inside the connecting portion 3 are the longer of the vertical length M and the horizontal length N of the cross-sectional shape of the duct 1 described above, that is, the cross-sectional shape of the duct 1 in the embodiment. The length is the same as the length N in the horizontal direction, and the duct 1 can be connected to any of the connecting portions 3 either by fitting the duct 1 in the vertical direction or by fitting it in the lateral direction.

Duct connection member 2 having an L tubular shape or a straight tubular shape
Is made of the same material as the duct 1, and the duct connecting member 2 is L-shaped or straight-cylindrical and can be divided into two divided bodies 5 by dividing it in the direction parallel to the axial direction. . The opposing side pieces 6 of the divided body 5 have an uneven shape and form portions that do not overlap each other in the opposing direction. That is, the protruding piece 6a provided on one side piece 6 of the facing side pieces 6 has a portion where the concave portion 6b of the other side piece 6 faces, and therefore, in this portion, the facing side piece 6 of the facing side piece 6 faces. Among them, the convex piece portion 6a of one side piece 6 does not overlap the other side piece 6. The convex piece 6a, which is a non-overlapping portion, serves as a screwing portion 7. The two divided bodies 5 divided into two have the same shape, and the two divided bodies 5 are formed by a single mold.
As in the case of the duct 1, the two divided bodies 5 are detachably locked by an arbitrary locking means (not shown) to form the duct connecting member 2 in the shape of an L tube or a straight tube. Has become.

When connecting the ducts 1 arranged along the wall surface, they are connected by the duct connecting member 2 having the above-described structure. In this case, the duct connecting members 2 are connected to the plurality of connecting portions 3. Can be connected by the common duct connecting member 2 regardless of whether the cross section of the duct 1 is vertical or horizontal. Therefore, as shown in FIG. 3, one of the ducts 1 is connected in a vertical cross-section and the other duct 1 is connected in a horizontal cross-section, or, as shown in FIG. Either of them can be connected in a vertical relationship, or, as shown in FIG. 5, both ducts 1 can be connected in a horizontal relationship in cross section. Where duct 1
The cross-section of the duct 1 may be connected vertically or horizontally. For example, the bottom surface of the duct body 9 having a substantially U-shaped cross section of the duct 1 may be attached to a mounting base surface 11 such as a wall surface or a ceiling surface. When fixing with a fastener such as a wood screw, it is necessary to select the direction of the cross section of the duct 1 for connection, and therefore,
The duct 1 has a cross-sectional orientation that changes depending on the mounting base surface 11 on which the bottom surface of the duct body 9 is abutted and mounted, such as facing upward, downward, rightward, or leftward. That is, FIG. 6A shows a case where the duct 1 is mounted on the lower mounting base surface 11 of the duct 1, and FIG. 6B shows the duct 1 mounted on the upper mounting base surface 1 of the duct 1.
6 shows a case where the duct 1 is mounted on the mounting base surface 11 on the left side of the duct 1, and FIG.
FIG. 6D shows a case where the duct 1 is mounted on the mounting base surface 11 on the right side of the duct 1, and thus the connection state of the duct connecting member 2 to the connecting portion 3 depends on the mounting direction of the duct 1. Although different, in any case, they can be fitted in the connection portion 3 to be connected.

Here, the connecting portion 3 is the duct 1 as described above.
Is formed to have a size that allows connection regardless of whether the cross section is in the vertical direction or the horizontal direction. Therefore, when the duct 1 is fitted in the connection part 3, the inner surface of the connection part 3 and the outer surface of the duct 1 are connected to each other. A gap 8 is created between the fitting member 4 and the gap 8.
Is fitted. The fitting member 4 is formed of the same material as the duct 1 or the duct connecting member 2 or a material having elasticity such as rubber, and the fitting member 4 is a gap formed between the inner surface of the connecting portion 3 and the outer surface of the duct 1. The gap 8 is tightly fitted into the gap 8 to seal the gap 8 so that dust and insects do not enter inside. Here, in the embodiment shown in the accompanying drawings, when the duct 1 is fitted into the connecting portion 3, the gap 8 is formed only between one inner surface of the connecting portion 3 and one outer surface of the duct 1. There is this gap 8
When the duct 1 is fitted into the connecting portion 3 in either the vertical direction or the horizontal direction, a gap 8 having the same shape is formed as shown in FIGS. 6 (a), (b), (c) and (d). Therefore, in any of the cases of FIGS. 6A, 6B, 6C and 6D, the fitting member 4 having the same shape can be fitted into the gap 8 to be hermetically sealed.

The fitting member 4 is not limited to one that fits into the gap 8 to seal the gap 8 as shown in FIG. 1, and as shown in FIG. It is also possible that the duct 1 is not hermetically closed by fitting, but the duct 1 is positioned with respect to the connecting portion 3.

FIG. 7 shows a mounting base surface 11 such as a wall surface or a ceiling surface.
The surface A and the surface B serving as the other mounting base surface 11 are at a right angle, the duct 1a is arranged along the surface A, another duct 1b is arranged along the surface B, and An example is shown in which the duct 1b is arranged at right angles to both the vertical direction and the horizontal direction with respect to the duct 1a. In the present embodiment, an example is shown in which the duct connecting member 2 having an L tubular shape is used to connect the duct 1a attached along the A surface and the duct 1b attached along the B surface. Here, as shown in FIG. 8, when the bottom surface portion of the duct main body 9 of the duct 1b is arranged along the plane A, the direction of the cross section of the duct 1b is changed and the duct connecting member 2 is fitted into the connecting portion 3. It is a complicated connection.

7 and 8, the distance L from the surface A to the outer surface of the duct 1b can be shortened and the installation can be performed in a small space.

On the other hand, when it is necessary to increase the distance L from the surface A to the outer surface of the duct 1b, as shown in FIG. 9, two duct connecting members 2 are used and one duct connecting member 2 is used. The duct 1a and the duct 1c are connected to each other by another duct connecting member 2 and the duct 1b and the duct 1c are connected to each other.
Is to connect with. In this case, two duct connecting members 2 having the same shape are used, and one duct connecting member 2 is attached by attaching a side piece 6 to the surface A by a fastener such as a wood screw, and the other duct connecting member 2 2 duct body
The bottom portion of 9 is placed on the B side and attached by a fastener such as a wood screw.

By the way, when the duct connecting member 2 is attached to a mounting base surface 11 such as a wall surface or a ceiling surface by a fastener such as a wood screw, it is a convex portion which is a screwing portion 7 of a bottom piece or a side piece 6 of one of the split bodies 5. The piece 6a is attached to the attachment base surface 11 by a fastener such as a wood screw, and then the other divided body 5 is attached to the other divided body 5 by the locking means. In this case, when the convex piece 6a which is the screwing portion 7 is attached by a fastener such as a wood screw, the opposing side pieces 6 of the split body 5 are formed as portions that do not overlap each other in the opposing direction, and this non-overlapping portion is used. Some convex piece 6
As shown in FIG. 10, since the screwing portion 7 is provided in a, the screwing portion 7 provided on the other side piece 6 through the driver 15 without being disturbed by one side piece 6 of the facing side pieces 6. A fastener such as a wood screw can be fixed to a building wall or the like.

The duct 1 is connected by the duct connecting member 2 as described above. The duct 1 and the duct connecting member 2 are protected by the duct 1 and the duct connecting member 2. It is a thing.

[0023]

As described above, in the invention according to the first aspect of the present invention, there is a plurality of connecting portions to which a plurality of ducts are respectively connected, and the connecting portions have different vertical and horizontal lengths in cross section. Since the duct is formed to have a size that allows connection regardless of whether the cross section is vertical or horizontal, a common duct connecting member is used regardless of whether the cross section of the duct is vertical or horizontal. Can be connected, one duct has a vertical cross section, the other duct has a horizontal cross section, both ducts have a vertical cross section, and both ducts have a cross section. However, in both cases, ducts of various forms can be connected by a common duct connecting member, such as connecting in a sideways direction, and various connecting forms can be selected by the same duct connecting member, facilitating on-site construction. ,
Further, the number of types of duct connecting members is small, which is advantageous in terms of cost. In addition, the connection part is the inner surface of the connection part and the duct.
The gap between the outer surface of the
It is formed to have one shape, and the fitting member fits in the above gap.
Since they are fitted together, they have the same shape regardless of the orientation of the duct.
The fitting member can be used to close the gap.
With a simple structure, it is possible to prevent dust and insects from entering the inside.
At the same time, the fitting members can be standardized, and the number of members decreases,
The cost can be reduced.

[0024]

Further, in the invention described in claim 2 , in addition to the effect of the invention described in claim 1 , the fitting member seals a gap generated between the inner surface of the connecting portion and the outer surface of the duct. Since the fitting member can seal the gap between the outer surface of the end of the duct and the inner surface of the connection portion, it is possible to prevent dust and insects from entering the inside more reliably and to prevent moisture from entering. Can also be prevented.

[0026]

Further, in the invention according to claim 3 , in addition to the invention according to claim 1 or claim 2 , the duct connecting member is divided into two to form two divided bodies. Since the opposite side pieces of No. 1 and No. 2 do not overlap each other in the facing direction, and a screwing portion to the wall surface is provided at this non-overlap portion, the other side piece is not disturbed by one of the opposite side pieces. It is possible to insert a fixing tool such as a wood screw into the screwing portion provided on the side piece to fix it to a mounting base surface such as a wall surface or a ceiling surface of a building.

According to the invention of claim 4 , in addition to the effect of the invention of claim 3 , since the two divided bodies have the same shape, a single metal is used. Two molds can be formed by the mold, the types of members are reduced, and the cost can be reduced in this respect as well.

[Brief description of drawings]

1A and 1B are exploded perspective views of a duct connecting member of the present invention.

FIG. 2 is a perspective view of a duct used in the above.

FIG. 3 is a perspective view showing a state in which ducts are connected by the above-mentioned duct connecting member.

FIG. 4 is a perspective view of another embodiment showing a state in which ducts are connected by the above-mentioned duct connecting member.

FIG. 5 is a perspective view of another embodiment showing a state in which ducts are connected by the same duct connecting member.

6 (a), (b), (c) and (d) are cross-sectional views showing various forms of connection between a duct connecting member and a duct.

FIG. 7 is a perspective view of an embodiment showing a state where ducts are connected by still another duct connecting member of the present invention.

FIG. 8 is a perspective view of another embodiment showing a state in which ducts are connected by the duct connecting member of the above.

FIG. 9 is a perspective view of another embodiment showing a state in which ducts are connected by the above duct connecting member.

FIG. 10 is an explanatory view showing an example of fixing the divided body of the duct connecting member of the same with a screw tool.

11A and 11B are perspective views of a duct connecting member portion showing another example of the fitting member.

FIG. 12 is a perspective view showing a conventional example.

[Explanation of symbols]

1 duct 2 Duct connection member 3 connection 4 Fitting member 5 divisions 6 side pieces 7 Screw stop 8 gap

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-9-303669 (JP, A) JP-A-10-311490 (JP, A) Actually open 5-5-59898 (JP, U) Actually open 53- 119623 (JP, U) Actual Kaihei 4-44593 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F16L 57/00 F24F 13/00-13/078

Claims (4)

(57) [Claims] 1. A duct connecting member for connecting ducts to each other, wherein the duct connecting member has a plurality of connecting portions to which a plurality of ducts are respectively connected, and the connecting portions are cross-sections of ducts having different vertical and horizontal lengths. Is of a size such that it can be connected in either the vertical or horizontal direction , and the inner surface of the connection part and the outer surface of the duct
The gap between the two has the same shape regardless of the duct orientation.
And a fitting member fitted in the gap . 2. The fitting member comprises an inner surface of the connecting portion and an outer surface of the duct.
A contract characterized by sealing the gap created between
The duct connecting member according to claim 1 . 3. The duct connecting member is divided into two parts, which are divided into two parts.
Form a body, and the opposing side pieces of the split body are in the opposite direction to each other.
To form a non-overlapping part, and the non-overlapping part on the wall
2. A screw fastening portion is provided to the
Alternatively, the duct connecting member according to claim 2 . 4. The two divided bodies have the same shape.
The duct connecting member according to claim 3, wherein