JPH0694165A - Wall cover - Google Patents

Abstract

PURPOSE:To provide a divided wall cover where an end shape is simple, and a forming die member can be inexpensively formed, and thickness protruding from a wall face can be lessened to decently attach the wall cover to a wall body. CONSTITUTION:A divided wall cover 20 is formed in a shape composed of a cylindrical sleeve 1 and a flange 2 which are severally divided into two parts, and the divided end edge on one side of the flange 2 is provided with a protruding body 3, and a divided outer edge on the other side is provided with a fitting notch groove 4, and the side of the protruding body 3 is formed into an inclined side 5 where the back side of the protruding body is narrower than its surface side, and the side of the fitting notch groove 4 is formed into an inclined groove side 7 where the back side of the notch groove is narrower in the width of the groove than the surface side of the notch groove. In addition, the back side of the flange near the basic part of the protruding body 3 is unitedly provided with a U-shaped engaging claw part 9 which coincides in its surface with the back of the flange and protrudes in a peripheral direction, and a locking protruding part 10 engaged with the engaging claw part 9 is unitedly formed on the back of the flange.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed around pipes installed in through holes of a wall of a building to prevent rainwater and wind from entering from the peripheral wall of the through hole of the building wall. The present invention relates to a wall cover that prevents the wall body, protects the through hole of the wall body, and improves the finished appearance.

[0002]

2. Description of the Related Art Conventionally, a wall cover of this type is disclosed in, for example, Japanese Utility Model Publication No. 57-57445.
A cylindrical sleeve for a wall cover having a tubular sleeve portion for piping which is inserted into a through hole of a building wall body and retained therein, and a flange portion for wall surface abutment which is integrally formed with an outer peripheral edge of the sleeve portion. There has been proposed a structure having a divided wall cover in which it is divided into two and joined in a plane passing through the axis of the part.

As shown in FIG. 16 and FIG. 17, this split wall cover comprises a split cylindrical sleeve portion 31 fitted and held in a through hole in a wall of a building, and a wall body formed integrally with the outer periphery thereof. Of the divided wall covers 40, 40 provided with a divided flange portion 32 that abuts on the surface of the guide wall, the guide protrusion protruding in the circumferential direction at the same outer peripheral surface of the flange portion surface as the flange portion surface. While the body 33 is provided, a fitting cutout groove 34 that fits with the guide projection 33 is provided in the other divided outer edge portion, and an engaging projection having a surface flush with the back surface of the guide projection 33. 35, and the engaging projection 35
An engaging step portion 36 is provided on the back surface of the guide projection body.
On the rear surface of the flange portion on the 33 side, a gate-shaped engaged portion 37 having an opening for fitting the engaging projection 35 is fitted.

Therefore, in this wall cover, after the divided wall covers 40, 40 are arranged with the pipes sandwiched between the through holes of the building wall body, the divided cylindrical sleeve portions 31 are fitted and held in the through holes. The guide projection 33 of the flange portion 32 is fitted into the fitting cutout groove 34, and the other engagement projection 33 is engaged with the engagement step portion 36, while the gate-shaped engaged portion 37 is formed. The end portions of the divided wall covers 40, 40 were fitted by being fitted into the opening of the above, and were attached. This wall cover has the advantage that it can be mounted from the outside even after the piping is already installed, because the divided wall covers 40, 40 are connected to each other and installed.

[0005]

However, the above-mentioned conventionally proposed wall cover is divided into the divided wall covers 40, 40.
A guide protrusion 33, a fitting cutout groove 34, and an engaging protrusion 35 are provided at the joint portion of the engaging step portion 36 and the gate-shaped engaged portion 37.
Since the engaging projections 35 are joined to each other by being provided, the end shape of the divided wall cover is very complicated, and a large number of divided mold materials are required for the molding die when integrally molding by resin molding, which is expensive. In addition, since the engaging projection 35 is fitted into the gate-shaped engaged portion 37, the engaging projection 35 is provided in the opening of the gate-shaped engaged portion 37 at the time of connection. It was necessary to accurately align and fit them, and it took time to connect them.

Further, in order to make the back surface of the flange portion 32 of the wall cover in close contact with the wall surface of the building so as to prevent the intrusion of rainwater, the outer peripheral edge of the flange portion 32 is connected to the engaging step portion 36 and the gate. It is necessary to make the thickness higher than the maximum height of the mold engaged portion 37 so that the top surface of the gate-shaped engaged portion 37 does not collide with the back surface of the wall body. There was no choice but to raise the height of.

That is, when the entire wall cover is formed of a molded product of synthetic resin having a high impact resistance and a thickness of 1 mm or more, for example, the thickness of the flange 32 and the guide projection 33 and the engagement projection 35 are increased. It is formed to have a thickness of 1 mm or more, and an opening gap for fitting the gate-shaped engaged portion 37 is formed in the engaging projection 35.
Is formed with a gap having a height that allows insertion, and the top surface portion of the gate-shaped engaged portion 37 is also formed with a thickness of about 1 mm. Therefore, since the protruding height of the gate-shaped engaged portion 37 on the rear surface of the flange portion is about 2-3 mm, the rising portion that absorbs the protruding height of the gate-type engaged portion 37. It is necessary to form 38 on the outer circumference of the flange part,
The overall height of the flange portion 32 of the wall cover is 3 to the total thickness of the flange portion 32 and the height of the rising portion 38.
There is a problem that the thickness becomes 4 mm or more to project, and the thickness of the flange portion projecting from the wall surface becomes thicker to impair the appearance. Also, when the pipe is bent along the wall surface in advance, the gap between the pipe and the wall surface must be widened and bent. There was a problem that it would be difficult to install it without properly entering.

In order to solve the above-mentioned conventional problems, the present invention has a simple end wall shape of the divided wall cover, allows the molding die member to be formed at a low cost, and facilitates the connection of the wall covers, and the divided wall cover An object of the present invention is to provide a wall cover that can be attached to a wall body in a good appearance by reducing the thickness of protrusion from the wall surface.

[0009]

In order to achieve the above object, the present invention has a cylindrical sleeve portion internally fitted and held in a through hole of a building wall, and integrally formed on the outer peripheral edge of the sleeve portion. In a wall cover in which the flange portion and the flange portion are divided into two in a plane that passes through the axial center of the tubular sleeve portion, one surface of the divided wall cover has one divided edge, and the surface thereof is the same as the surface of the flange portion in the circumferential direction. While the protruding body is provided on the other side, a fitting cutout groove for fitting with the protruding body is provided on the other divided outer edge portion, and the side surface of the protruding body is narrower on the back side of the protruding body than on the front side of the protruding body. The side surface of the fitting cutout groove is formed on the inclined groove side surface or the stepped groove side surface such that the back surface side of the cutout groove is narrower than the front surface side of the cutout groove. And, the above On one side of the back side of the flange near the body or on the back side of the flange near the fitting notch groove, an engaging claw that has the same surface as the back of the flange and projects in the circumferential direction is integrally provided, and the other side is fitted. A member that engages with the engaging claw portion when the protruding body of the split wall cover and the fitting notch groove are fitted to the rear surface side of the flange portion near the joint cutout groove or the rear surface side of the flange portion near the protrusion body. The wall cover is characterized in that the stop projection is integrally formed.

[0010]

Therefore, according to the wall cover of the present invention, when the protruding body of the divided wall cover is fitted into the fitting notch groove of the other divided wall cover, the inclined side surface or the stepped side surface of the protruding body is changed to the other side. The surface of the divided wall cover is joined to the side surface of the inclined groove or the side surface of the stepped groove, and the engaging claw portion and the locking projection portion are engaged with each other on the rear surface side of the fitting portion of the protruding body and the fitting cutout groove. The connection part is prevented from coming off, and the engagement claw surface comes into contact with the rear surface of the flange part of the other split wall cover to support the joint surface between the protruding body and the fitting cutout groove, preventing the connection part from shifting. To be done.

Moreover, since the connecting portion of the projecting body and the fitting cutout groove is connected by the surface joining of the inclined side surface or the stepped side surface of the projecting body and the engagement of the engaging claw portion and the locking protruding portion, the flange is formed. Since the protrusion heights of the engaging claws and the locking protrusions are provided on the back surface of the part, the height of the rising part that absorbs the protruding heights of the engaging claws and the locking protrusions is minimized. It can be formed by suppressing the height to a low level.

Further, since no gate-shaped engaged portion is provided in the resin molding of the divided wall cover unlike the conventionally proposed wall cover, the shape of the molding die material can be made simpler than that of the above proposed wall cover. It is possible to reduce the price and provide an inexpensive wall cover.

[0013]

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1 shows a wall cover of the present invention, showing a connected state in which the divided wall covers 20 shown in FIG. 2 are connected and mounted in through holes (not shown) of the wall body.

Each of the divided wall covers 20 and 20 has a tubular sleeve portion 1 which is fitted and held in a through hole of a building wall and a flange portion 2 which is integrally formed with the outer peripheral edge of the sleeve portion. It is formed in a shape that is divided into two in a plane that passes through the axis of the sleeve portion 1, and the surface is the same as the surface of the flange portion at one divided edge of each flange portion 2 of the divided wall covers 20 and 20. While the protruding body 3 protruding in the direction is provided, a fitting cutout groove 4 for fitting with the protruding body 3 is provided in the other outer peripheral edge portion, and the side surface of the protruding body 3 is the protruding body back side. The inclined side surface 5 is formed to be narrower than the front surface side, and the side surface of the fitting cutout groove 4 is formed to the inclined groove side surface 7 such that the rear surface side of the cutout groove is narrower than the front surface side of the cutout groove. In addition, on the rear surface side of the flange portion near the base portion of the protrusion 3, A U-shaped engaging claw portion 9 having the same surface as the rear surface of the flange portion and protruding in the circumferential direction is integrally provided, and the engaging claw portion is provided on the rear surface side of the flange portion near the other fitting notch groove end edge portion. A locking projection 10 that is engaged with the shaft 9 is integrally formed.

FIG. 3 is an enlarged view of the divided edge of the divided wall cover 20 on the side of the fitting cutout groove 4, and both ends are V-shaped near the end edge of the fitting cutout groove 4. The locking protrusion 10 is formed integrally.

Further, FIG. 4 shows the above-mentioned divided wall cover 20.
3 is an enlarged view of the divided edge of the protruding body 3 side, and a U-shaped engaging claw portion 9 having a claw portion inside the tip near the base of the protruding body 3 sandwiches the protruding body 3. It is integrally formed in such a way. The side surface of the protruding body 3 and the side surface of the fitting cutout groove 4 are as shown in FIG. 1 when the protruding body 3 of the divided wall cover 20 is fitted into the fitting cutout groove 4 of the other divided wall cover 20. The inclined side surface 5 of the protruding body 3 is surface-joined to the inclined groove side surface 7 of the other divided wall cover, and the engaging claw portion 9 is provided on the rear surface side of the fitting portion of the protruding body 3 and the fitting cutout groove 4. And the locking projection 10 are engaged with each other so as to support the joint surface of the projecting body 3 and the fitting cutout groove 4 to be connected.

FIG. 5 is a sectional view of the split wall cover 20, and FIG. 6 is a side view of the split wall cover as seen from the side of the split end. The engaging claw portion 9 and the locking projection portion 10 are provided on the back surface of the flange portion 2. It is integrally formed, and a rising portion 11 having the same height as the engaging claw portion 9 and the locking projection portion 10 is formed on the outer periphery of the flange portion 2. Therefore, when the height of the engaging claw portion 9 and the locking projection portion 10 is 1 mm, the height of the rising portion 11 is also 1 mm.
mm, and when the height of the engaging claw portion 9 and the locking projection portion 10 is 2 mm with a large engaging force, the height of the rising portion 11 may be 2 mm. .

Next, a procedure for mounting the wall cover of the present invention shown in FIGS. 1 to 6 into the through hole of the wall body will be described. First, on the inner surface of the through hole of the wall where the piping etc. are installed,
One of the divided wall covers 20 is the cylindrical sleeve portion 1
Is fitted and held in the through hole so as to cover half of the wall surface around the through hole. At this time, when the pipe is bent, the tubular sleeve portion 1 is first fitted in from the inner surface of the through hole on the side where the pipe is not attached, and appropriately rotated along the inner surface of the through hole. The flange portion 2 is located between the pipe and the wall surface. Next, the tubular sleeve portion 1 of the other split wall cover 20 is fitted into the inner surface of the remaining half of the through hole,
At the same time, the protrusions 3 and 3 of each of the divided wall covers 20 and 20 are fitted into the fitting cutout grooves 4 and 4 of the other divided wall cover.

At this time, the inclined side surface of the projecting body 3 and the inclined groove side surface of the fitting notch groove come into surface contact with each other so as to be engaged with each other as a guide, and the engaging claw portion 9 engages with the locking projection portion. As shown in FIG. 1, the engaging claw portion 9 and the engaging projection portion 10 are engaged with each other as shown in FIG. 1, so that the divided wall covers 20 and 20 are connected to each other. In this way, the divided wall covers 20, 20
Are attached to the through holes of the wall body one by one, and the protruding body 3 and the fitting cutout groove 4, and the engaging claw portion 9 and the engaging projection portion 10 are fitted and engaged, respectively, and connected to form a circular shape. The installation of the wall cover is completed.

FIGS. 7 to 10 show a modification of the wall cover of the present invention. In FIGS. 1 to 6, the engaging claw portion is formed as a U-shaped engaging claw portion 9. In contrast to this, in this modified example, the engaging claw portion is a J-shaped engaging claw portion 12, and the shape of the locking projection is half the size of the above-described embodiment and is shifted to one side. It is formed as the compound protrusion 13. The other parts are the same as those in the above-mentioned embodiment, and are denoted by the same reference numerals and the description thereof is omitted.

FIG. 11 shows a second embodiment of the wall cover according to the present invention, in which the inside of the rising portion 11 provided on the outer periphery of the flange portion 2 of the divided wall cover 20 is thickly formed in the vicinity of the divided edge. While the engaging claw portion 14 is provided along the inside of the rising portion 11, a locking protrusion 15 that engages with the engaging claw portion 14 is provided on the inner surface of the rising portion 11 at the other split edge. It is formed integrally.

According to the embodiment shown in FIG. 11, the engaging claw portion 14 and the locking projection portion are formed on the inner surface of the rising portion of the flange portion 2.
Since 15 is engaged, the shape of the molding die at the time of resin molding can be easily produced, and the rising portion 11 of the flange portion 11 can be formed.
The joint strength of the inner surface is increased, there is no displacement of the flange portion of the divided wall cover, and the outer peripheral shape when the divided wall covers are connected can be mounted with an appearance that gives an excellent feeling of unity.

In the above embodiments, the case where both the side surface of the projecting body and the side surface of the fitting cutout groove are formed as inclined surfaces has been described. However, the side surface of the projecting body 3 is as shown in FIGS. 12 and 13. And the fitting notch groove 4 is formed on the side surface 6 with a step such that the rear surface side of the projecting body is narrower than the front surface side of the projecting body.
The side surface of the cutout groove is formed as the stepped groove side surface 8 whose groove width is narrower than that of the cutout groove front surface.
You may form so that it may be surface-joined in the said step part.

Further, the engaging claws 9, 12, 14 and the locking projections 10, 13, 15 have the engaging claws 9, 12, 14 on the side of the protrusion 3 in the above-mentioned embodiment and modification. Provided, locking protrusion
The case where 10, 13, 15 are provided on the side of the fitting notch groove 4 has been described, but the engaging claws 9, 12, 14 and the locking projections 10,
14 and 15, the engaging claw portions 9 (12, 14) are provided on the side of the fitting cutout groove 4 as opposed to the above-described embodiment, and the engaging projection portion 10 ( 13, 15) may be provided on the side of the projecting body 3 to be formed.

In any case, by making the front surface of the engaging claw portion 9 flush with the rear surface of the flange portion 2,
The surface joining at the connecting portion between the projecting body 3 and the fitting notch groove 4 is supported from the back surface side of the flange portion 2 and the engaging claw portion 9 is formed.
The joint strength of both the split wall covers 20 and 20 is maintained together with the joining by the engagement of the locking projections 10. Second Modification of Wall Cover of the Present Invention
The mounting procedure of the embodiment can be mounted by the same procedure as the wall cover of the embodiment of FIGS. 1 to 6 described above, and the description thereof will be omitted.

[0026]

As described above, the wall cover of the present invention has a cylindrical sleeve portion 1 fitted and held in a through hole of a building wall and a flange portion 2 integrally formed with the outer peripheral edge of the sleeve portion. In the wall cover which is divided into two in a plane passing through the axis of the tubular sleeve portion 1, the divided wall cover 2
A protrusion 3 having the same surface as the surface of the flange portion and protruding in the circumferential direction is provided on one of the divided edges of each of the flange portions 0 and 20, and the protrusion 3 is fitted on the other divided outer edge portion. A fitting notch groove 4 to be fitted is provided, and the side surface of the projection 3 is formed into an inclined side surface 5 or a stepped side surface 6 such that the back surface of the projecting body is narrower than the front surface side of the projecting body.
The side surface of the fitting cutout groove 4 is formed as an inclined groove side surface 7 or a stepped groove side surface 8 such that the back surface side of the cutout groove is narrower than the front surface side of the cutout groove, and the flange in the vicinity of the protruding body 3 is formed. On one of the rear surface side of the portion or the rear surface side of the flange portion near the fitting notch groove 4, an engaging claw portion 9 having the same surface as the rear surface of the flange portion and projecting in the circumferential direction is integrally provided, and the other fitting cutting portion is provided. When the protruding body 3 of the split wall cover 20, 20 and the fitting cutout groove 4 are fitted to the rear surface side of the flange portion near the cutout groove or the rear surface side of the flange portion near the protruding body, the engaging claw portion 9 is engaged. Since the engaging protrusion 10 to be engaged is integrally formed, even after the pipe is constructed in the through hole of the wall body, the pipe is sandwiched by the divided wall covers to form the through hole. Can be installed by inserting the tubular sleeve part Of course, each divided wall cover is firmly connected by the surface joining of the protruding body and the inclined side surface of the fitting cutout groove or the side surface with the step, and the connection by the engagement of the engaging claw portion and the engaging projection portion. Therefore, the connection is easier than the conventional connection by the gate-shaped engaged portion.

Further, since only the engaging claws and the locking protrusions project to the rear surface of the flange of the split wall cover, the dimension of the rising portion of the flange is determined by the engaging claws and the locking protrusions. The height of the entire flange part can be reduced to only the height of the flange, and the protruding height of the flange part when mounted on the wall surface can be reduced, so that the appearance around the wall through hole can be finished neatly. Is.

Further, even when the pipe is bent along the wall surface and constructed, the rising portion of the flange portion is formed to have a minimum height corresponding to the thickness of the engaging claw portion. Since the height of the flange portion protruding from the wall surface can be made as small as possible, the flange portion of the divided wall cover does not easily enter between the pipe and the wall surface at the time of mounting, and the mounting is easy.

Further, the connecting portion of the divided end edge of the divided wall cover has a protrusion 3, a fitting notch groove 4 and an engaging claw portion 9.
Since it can be formed only by combining the locking protrusion 10 with the locking protrusion 10, the shape of the divided edge is simple, and a molding die for forming the divided wall cover by resin molding can be easily and inexpensively manufactured. It is possible to reduce the equipment cost and provide a wall cover that is excellent in appearance and wearability at low cost.

[Brief description of drawings]

FIG. 1 is a front view of a wall cover according to an embodiment of the present invention, in which divided wall covers are connected to each other,

FIG. 2 is a front view showing one of the divided wall covers of the wall cover of the present invention shown in FIG.

FIG. 3 is a partially enlarged plan view illustrating a division edge on the side of a fitting cutout groove of the division wall cover shown in FIG. 2;

FIG. 4 is a partially enlarged plan view illustrating a divided edge on the protruding body side of the divided wall cover shown in FIG.

5 is a cross-sectional view of the split wall cover shown in FIG.

6 is a side view of the divided wall cover shown in FIG. 2 as seen from a divided edge side;

FIG. 7 is a front view of a modified state of the wall cover of the present invention in a connected state,

8 is a front view showing one divided wall cover of the wall cover of the present invention shown in FIG. 7,

9 is a partially enlarged plan view illustrating a division edge on the side of a fitting cutout groove of the division wall cover shown in FIG. 7;

FIG. 10 is a partially enlarged plan view illustrating a divided edge of the divided wall cover on the protruding body side shown in FIG. 7,

FIG. 11 is a plan view illustrating each divided wall cover showing a second embodiment of the wall cover of the present invention,

FIG. 12 is an enlarged end view for explaining an embodiment in which the side surface of the protrusion of the wall cover of the present invention is formed as a stepped side surface,

FIG. 13 is an enlarged end view for explaining an embodiment in which the side surface of the fitting cutout groove in the wall cover of the present invention is formed as a stepped groove side surface,

FIG. 14 is an enlarged plan view illustrating an embodiment in which the engaging claw portion of the wall cover of the present invention is formed on the fitting cutout groove side;

FIG. 15 is an enlarged plan view illustrating an example of the case where the engaging protrusion is formed on the protrusion side in the wall cover of the present invention,

FIG. 16 is a plan view illustrating a conventional wall cover,

FIG. 17 is a side view illustrating a conventional wall cover as viewed from a divided end face side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical sleeve part 2 Flange part 3 Projection body 4 Fitting cutout groove 5 Inclined side surface of projection body 6 Side surface with step of projection body 7 Inclined groove side surface of fitting cutout groove 8 Stepped groove of fitting cutout groove Side surfaces 9, 12, 14 Engaging claws 10, 13, 15 Locking protrusions 11 Rising parts 20, 20 Split wall cover

Claims (2)

[Claims] 1. A cylindrical sleeve portion 1 which is fitted and held in a through hole of a building wall body, and a flange portion 2 which is integrally formed with an outer peripheral edge of the sleeve portion. In the wall cover divided into two in the passing plane, one of the divided edges of each flange portion 2 of the divided wall covers 20 and 20,
A protrusion 3 is provided whose surface is the same as the surface of the flange portion and protrudes in the circumferential direction, while a fitting notch groove 4 that fits with the protrusion 3 is provided on the other divided outer edge portion. The side surface of 3 is formed as an inclined side surface 5 or a stepped side surface 6 such that the rear surface side of the projecting body is narrower than the front surface side of the projecting body, and the side surface of the fitting cutout groove 4 is cut out so that the back surface side of the cutout groove is closer to the cutout groove surface side. It is formed on the inclined groove side surface 7 or the stepped groove side surface 8 such that the groove width is narrowed, and the rear surface side of the flange portion near the protrusion 3 or the fitting cutout groove 4 is formed.
An engaging claw portion 9 having the same surface as the rear surface of the flange portion and protruding in the circumferential direction is integrally provided on one side of the rear surface of the flange portion in the vicinity, and the rear surface side or the protrusion of the flange portion near the other fitting cutout groove. On the rear surface side of the flange portion near the body, the protruding body 3 of the divided wall covers 20 and 20 and the fitting cutout groove 4 are formed.
A wall cover, characterized in that a locking projection (10) that is engaged with the engaging claw (9) when it is fitted is integrally formed. 2. The wall cover according to claim 1, wherein the engaging claw portion is projected along the inner side surface of the rising portion of the flange portion, and the locking projection portion is integrally formed on the inner side surface. .