JPH0730820Y2 - Decorative panel for architecture having hollow part - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a decorative panel for construction having a hollow portion.

(Prior Art) It is known to use a panel having a hollow portion for the exterior, interior, etc. of a building. In order to fasten this hollow panel to the base with bolts, it is necessary to provide a nut on the hollow panel.

For this reason, for example, in Japanese Utility Model Laid-Open No. 60-184902, a through hole is formed in a wall on the back surface side that constitutes a hollow portion of a hollow panel, a nut is inserted into the hollow portion, and a protrusion provided on this nut is provided. It is described that the nut is positioned in the hollow panel by being urged by a spring into the through hole and fitted therein.

Further, in Japanese Patent Laid-Open No. 59-158861, a slit is formed in a wall on the rear surface side that constitutes the hollow portion of the hollow panel, into which a threaded portion of a bolt can be inserted from the end face of the hollow panel in the longitudinal direction of the hollow portion. Things are listed. That is, this is to insert the screw part of the bolt into the slit by locating the nut on the hollow side and the fastener on the back side of the panel with the nut and the stopper provided on the bolt. Thus, the nut insertion work is simplified.

Further, a technique of providing an embedded nut on a building panel is also generally known.

For example, Japanese Unexamined Patent Publication No. 61-75157 discloses that a cap nut with a plate is used as the embedded nut. That is, in this product, a through hole into which the nut body of the cap nut is fitted is provided in the solid panel, and a recessed seat into which the plate is fitted is provided at the opening edge on the panel surface side of the through hole, and the surface of the solid panel is provided. The plate nut is fitted into the through hole from the side so that the plate is flush with the panel surface, and the decorative plate is adhered to the panel from above.

(Problems to be solved by the invention) However, in the case of the panel having the above-mentioned conventional hollow portion, the wall on the back surface side that constitutes the hollow portion is clamped by the bolt and the nut, and therefore the hollow panel is Since it is held only by the wall on the back surface side, high attachment strength cannot be obtained. Moreover, the work of inserting the nut into the hollow portion is required at the time of construction, and high workability cannot be expected.

On the other hand, it is also possible to apply the embedded nut in the solid panel to the hollow panel, but in that case, hole processing for inserting the nut body part of the nut with plate into the hollow panel and fitting the plate Therefore, it is necessary to process the recessed seat. In other words, such a two-stage processing is difficult with an ordinary drill, and a special processing machine, for example, a machine tool such as a router is required (particularly when the plate has a perfect circular shape), resulting in a high cost.

That is, an object of the present invention is to improve the mounting strength and the workability of a building panel having a hollow portion without making the fabrication difficult.

(Means for Solving the Problems) The present invention addresses the above problems by providing an architectural decorative panel using a hollow panel formed by extrusion molding, using the hollow panel as a base material by using substantially the entire thickness of the hollow panel. In order to attach to this panel, an embedded nut with a head extending from the front surface to the back surface of the panel is provided to improve the mounting strength and workability of the panel. By making the fitting portion a groove extending in the longitudinal direction of the hollow portion on the panel surface, this groove can be formed at the same time as the extrusion molding of the hollow panel, thereby facilitating the production of the decorative panel for construction.

That is, one of the specific means therefor is, according to claim 1, a hollow panel in which a hollow portion extending in the extrusion direction is formed by extrusion molding, and a surface material provided on the surface of the hollow panel. And a buried nut embedded in the hollow panel by opening a screw hole on the back surface of the hollow panel, wherein the buried nut has a large-diameter head whose outer shape is formed in a non-round shape, It is composed of a substantially T-shaped cap nut consisting of a small-diameter leg portion having the screw hole formed therein, and extends from the maximum outer diameter portion of the head portion of the embedded nut extending in the extrusion direction on the surface of the hollow panel. A groove having a narrow width and a width that allows the head to be fitted in a portion other than the maximum outer diameter portion is formed, and an opening is formed in the bottom surface of the groove of the hollow panel and the back surface of the hollow panel. Through the above A through hole into which the leg portion of the gutter can be fitted is formed, the leg portion of the embedded nut is fitted into the through hole from the surface side of the hollow panel, and the head portion is fitted into the groove in a rotation-stopped state. A decorative panel for architecture having a hollow portion, wherein a surface material is provided over the entire surface of the hollow panel so as to cover the head of the embedded nut.

The means according to claim (2) is a decorative plate in which a surface material is joined to the surface of a hollow panel with an adhesive, and at least one of the surface of the hollow panel and the back surface of the decorative plate is provided with irregularities. It is a thing.

The means described in claim (3) is such that the top surface of the head of the embedded nut is uneven, and the decorative plate is joined to the top surface of the head of the embedded nut with an adhesive.

(Operation) In the decorative panel for construction according to the above-mentioned claim (1), since the embedded nut is provided, it is not necessary to insert the nut into the hollow portion at the time of construction. The embedded nut is a substantially T-shaped cap nut having a head, and since the head is provided on the front surface of the hollow panel, the entire thickness of the hollow panel from the front surface to the back surface is substantially the same. Is clamped by the head of the embedded nut and the bolt applied to the embedded nut and attached to the base.
Further, since the outer shape of the head portion is a non-round shape, the head portion has a function of screwing the bolt into the screw hole and a function of stopping rotation of the nut when tightening.

Then, the means for holding the head of the embedded nut so as not to rotate is a groove into which the head is fitted, and this groove is formed by extending in the extrusion direction of the hollow panel. At the same time, the groove can be formed.

In the decorative panel for construction according to claim (2), the unevenness provided on at least one of the hollow panel and the decorative plate improves the retention of the adhesive and improves the adhesiveness.

In the decorative panel for construction according to claim (3), the concave and convex portions provided on the top surface of the head of the embedded nut facilitate the retention of the adhesive on the top surface of the head, and The adhesiveness of can be improved.

(Effect of the device) Therefore, according to the device described in claim (1), since the embedded nut is provided, it is not necessary to insert the nut into the hollow portion at the time of construction, and the rotation of the embedded nut head is eliminated. Since the stop function contributes to improving the workability of tightening the bolts, the workability can be improved, and almost the entire wall thickness of the hollow panel is clamped and attached to the base, so the attachment strength to the base Can be improved.

Then, the means for holding the head of the embedded nut so as not to rotate is a groove into which this head fits, and since this groove is provided so as to extend in the extrusion direction of the hollow panel, the groove is formed at the same time as the extrusion molding of the hollow panel. Therefore, a decorative panel for construction can be manufactured relatively inexpensively without using a special machine tool such as a router.

Further, according to the invention as set forth in claim (2), since at least one of the hollow panel surface and the back surface of the decorative plate is provided with irregularities, the adhesiveness between the hollow panel and the decorative plate can be improved, and the makeup can be improved. The quality of the panel can be improved.

According to the invention as set forth in claim (3), since the top surface of the head of the embedded nut is uneven, the adhesiveness between the decorative panel and the embedded nut can be improved, and the wobbling of the embedded nut can be prevented. Thus, it is possible to improve the workability or mounting stability of the decorative panel on the base.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

Example 1 This example is shown in FIGS. 1 to 6.

The decorative panel 1 for construction shown in FIG. 1 is to be sequentially joined by the actual jigging means. In the panel 1, 2 is a ceramic material, for example, a plurality of hollow parts made of ALC (cellular concrete). Hollow panel 3 in which is formed is a metal decorative plate as a surface material provided on the surface of this hollow panel 2, 4 is embedded in the hollow panel 2 and screw holes 5 are opened on the back surface of the hollow panel. It is an embedded nut.

First, the hollow panel 2 is a plate-like body having fine irregularities over its entire surface, and as shown in FIG.
A male practical ridge 6a extending in the extrusion direction (longitudinal direction of the hollow portion) on one side, a female practical groove 6b extending in the same direction on the other side, and the male practical ridge 6a and female practical groove A plurality of large-diameter hollow portions 7 and two small-diameter hollow portions 8 extending in the same direction with 6b, and grooves 9 extending in the same direction on the surface of the hollow panel 2 at the positions of the small-diameter hollow portions 8 and 8. It has 9 and. The male practical ridge portion 6a, the female practical concave groove portion 6b, the large-diameter hollow portion 7, the small-diameter hollow portion 8 and the groove 9 are formed at the same time by the extrusion using a die for extrusion.

The groove 9 is for embedding the embedded nut 4, and the hollow panel 2 has a through hole 10 penetrating this panel and opened on the center line of the bottom surface of the groove 9 and on the rear surface of the panel.
Has been drilled. Since the concrete configuration of the groove 9 and the through hole 10 is related to the configuration of the embedded nut 4 shown in FIGS. 3 to 5, the embedded nut 4 is first described.
Will be described.

The embedded nut 4 is a cap nut, and has a substantially T-shaped configuration including a plate-shaped large-diameter head portion 11 and a small-diameter circular cross-section leg portion 12 having an axially extending screw hole 5. And the total height thereof is substantially the same as the thickness of the hollow panel 2. As shown in FIG. 3 (plan view), the head portion 11 has an outer shape formed into a rectangle (corner circle) having rounded corners. Then, the groove 9 of the hollow panel 2 extends in the above extruding direction at a width at which the short diameter portion of the head portion 11 of the embedded nut 4 can be fitted and at a depth substantially the same as the plate thickness of the head portion 11. There is. On the other hand, the through hole 10 has a diameter such that the leg portion 12 of the embedded nut 4 can be fitted therein.

In manufacturing the decorative panel 1, first, a through hole 10 is formed in the hollow panel 2 obtained by extrusion molding. Then, the leg portion 12 of the embedded nut 4 is fitted into the through hole 10 of the hollow panel 2 from the front surface side of the hollow panel 2, and the direction of the long diameter portion of the head portion 11 is made to coincide with the longitudinal direction of the groove 9, and this head portion is formed. 11 is fitted in the groove 9 at its short diameter portion in a state of being prevented from rotating. In this case, the embedded nut 4 can be fixed to the hollow panel 2 by press fitting the leg 12 into the through hole 10 or by using an adhesive. Then, an adhesive is applied to the surface of the hollow panel 2 and the top surface of the head 11 of the embedded nut 4, and the decorative plate 3 is fitted to the hollow panel 2. At that time, the adhesive is held substantially uniformly over the entire surface of the hollow panel 2 due to the fine irregularities.

Although the surface of the hollow panel 2 is provided with irregularities in the above embodiment, it may be provided on the back surface of the decorative plate 3 or both of them. Therefore, the adhesive may be applied not to the front surface side of the hollow panel 2 but to the back surface side of the decorative plate 3, or may be applied to both the hollow panel 2 side and the decorative plate 3 side.

Therefore, in manufacturing the decorative panel 1, the groove 9 for fitting the head 11 of the embedded nut 4 can be formed at the same time when the hollow panel 2 is extruded. It is only necessary to form the through hole 10 for inserting the leg portion 12 of No. 4, and the hollow panel 2 can be formed by an ordinary drill without using a machine tool such as a router.
Can be finished.

FIG. 6 shows the decorative panel 1 attached to a base (steel frame) 13 with bolts 4 using the embedded nut 4. That is, the decorative panel 1 is attached to the base 13 via the mounting bracket 15 by applying the bolt 14 to the screw hole 5 of the stepping nut 4 opened on the back surface of the hollow panel 2. In the figure, 16 is an adhesive agent filled in the groove 9 of the hollow panel 2.

When mounting the decorative panel 1, the embedded nut 4
Since it is provided, it is not necessary to separately insert a nut into the hollow portion 8 of the hollow panel 2, and the mounting operation of the decorative panel 1 can be performed easily and quickly. Further, the embedded nut 4 has a non-round circular head portion 11 in combination with the groove 9 on the surface of the hollow panel 2 and has a rotation-stopping function. Therefore, the embedded nut 4 should rotate freely when tightening the bolt 14. Without
The workability of tightening the bolt 14 is improved.

Then, in the decorative panel 1, substantially the entire thickness of the hollow panel 2 from the front surface portion to the back surface portion is the head of the embedded nut 4.
Since it is sandwiched between 11 and the bolt 14 applied thereto and is attached to the base 13, the attachment strength thereof is increased. Further, the head portion 11 of the embedded nut 4 serves as a stopper for the embedded nut 4 so as to prevent the embedded nut 4 from coming off, thereby contributing to the improvement of the mounting strength.

Example 2 This example is shown in FIGS. 7 to 10.

In the decorative panel 21 of this example, as shown in FIG. 7, the embedded nut 24 is provided in the solid portion of the hollow panel 22 obtained by extrusion molding. That is, the hollow panel 22 has a groove 29 into which the head 31 of the embedded nut 24 is fitted.
A through hole 30 is formed on the surface of the solid portion between 7, 27 by extending in the extrusion direction, and a through hole 30 for fitting the leg portion 32 of the embedded nut 24 is formed by opening on the bottom surface of this groove 29 and the back surface of the hollow panel 22. Has been done.

Further, in the embedded nut 24, as shown in FIGS. 8 to 10, the head 31 has an oval outer shape, and a large number of grooves 31a are formed in a lattice pattern on the top surface thereof. And screw holes 25
A plurality of annular grooves 32a are formed on the outer peripheral surface of the leg portion 32 in which a plurality of holes are formed at intervals in the vertical direction. In this case, the groove 29 of the hollow panel 22 has a width that allows the short diameter portion (short shaft portion) of the head portion 31 of the embedded nut 24 to be fitted therein.

Further, the decorative plate 23 of this example is composed of tiles.

The rest of the configuration is substantially the same as that of the first embodiment, and a detailed description thereof will be omitted.

Therefore, in the case of this example, the groove 29 of the hollow panel 22 and the non-round head 31 of the filling prospective nut 24 provide the same rotation stopping function as that of the first embodiment, and the top surface of the head 31. Since the unevenness due to the large number of grooves 31a is formed in the
Adhesive to the adhesive is improved, and the adhesiveness between the decorative plate 23 and the embedded nut 24 is improved. Also, embedded nut 24
Since the annular groove 32a is formed on the outer peripheral surface of the leg portion 32 of
By filling the annular groove 32a with the adhesive 16, the embedded nut 24 can be firmly fixed to the hollow panel 22.

<Embodiment 3> This embodiment is shown in FIG. 11, in which a coating film 43 is formed by coating the surface of a hollow panel 42 as a surface material of a decorative panel 41.

That is, in this example, the hollow panel 42 is used as in the second embodiment.
In the solid part between the hollow parts 47, 47 of the embedded nut 44
A groove 49 for fitting the head 51 of the hollow panel 42 is formed in the extrusion direction at the time of molding the hollow panel 42, and a through hole 50 for fitting the leg portion 52 in which the screw hole 45 of the embedded nut 44 is bored. Are formed. The groove 49 is formed to be deeper than the plate thickness of the head 51 of the embedded nut 44, and a filler 53 such as putty is provided on the head 51, and a coating is applied on the filler 53 to apply the coating. The film 43 is formed.

In the case of this example, since the surface is finished by painting, there is no problem of the displacement or peeling of the surface material on the hollow panel 42.

FIGS. 12 to 14, FIGS. 15 to 17, and FIGS. 18 to 20 show other examples of embedded nuts, respectively.

That is, in the embedded nut 60 shown in FIGS. 12 to 14, the outer shape of the head portion 61 is substantially square,
Vertical and horizontal grooves 61a are formed in a grid pattern on the top surface thereof to provide projections and depressions. The structure of the leg portion 62 having the screw hole 65 is substantially the same as that of the first embodiment. In the embedded nut 70 shown in FIG. 15 to FIG. 17, the outer shape of the head 71 is formed into a substantially square shape, and a plurality of protrusions 73 are provided on the top surface of the embedded nut 70 to provide irregularities. The structure of the leg portion 72 having the screw hole 75 is substantially the same as that of the first embodiment. In the embedded nut 80 shown in FIG. 18 to FIG. 20, the outer shape of the head portion 81 has two straight sides which are parallel to each other and have a width substantially equal to the diameter of the leg portion 82 having the screw holes 85. The two arc-shaped sides facing each other in the direction of the two straight sides are formed into a non-round shape. The structure of the leg portion 82 is substantially the same as that of the first embodiment.

The embedded nut 60 shown in FIG. 12 to FIG. 14 and the embedded nut 70 shown in FIG. 15 to FIG.
The unevenness of the top surface of the can improve the adhesiveness to the surface material. In the embedded nut 80 shown in FIGS. 18 to 20, the head portion 81 is fitted into the groove by aligning the extending directions of the two straight sides with the longitudinal direction of the groove of the hollow panel.

[Brief description of drawings]

The drawings show an embodiment of the present invention, and FIGS. 1 to 6 relate to the embodiment 1. FIG. 1 is a sectional view of a decorative panel, and FIG. 2 is a perspective view showing a hollow panel with a part thereof omitted. FIG. 3 is a plan view of the embedded nut, FIG. 4 is the same front view, FIG. 5 is the same vertical sectional view, FIG. 6 is a vertical sectional view showing the decorative panel attached to the base, and FIG. Sectional drawing of the decorative panel of Example 2, FIG. 8 is a plan view of the embedded nut of the same example, FIG. 9 is the same front view, FIG. 10 is the same vertical sectional view, and FIG. 11 is the decorative panel of Example 3. Cross-sectional views of FIGS. 12 to 14 and 15 to
FIG. 17 and FIGS. 18 to 20 show other examples of embedded nuts, respectively, and FIGS. 12 and 15 and 18 are plan views, and FIGS. 13 and 16 and FIG. FIG. 19 is a front view, and FIGS. 14, 17 and 20 are longitudinal sectional views. Decorative panel 2,22,42 …… Hollow panel 3,23 …… Decorative plate (surface material) 4,24,44, 64,74,84 …… Embedded nut 5,25,45, 65,75,85 …… Screw hole 7,8,27,47 …… Hollow part 9,29,49 …… Groove 10,30,50 …… Through hole 11,31,51, 61,71,81 …… Head 12,32,52, 62,72,82 …… Leg 13 …… Base 31a, 61a …… Groove (uneven) 43 …… Coating film (surface material) 71a …… Protrusion (uneven)

Claims (3)

[Scope of utility model registration request] 1. A hollow panel in which a hollow portion extending in the extrusion direction is formed by extrusion molding, a surface material provided on the surface of the hollow panel, and a screw hole formed in the hollow panel on the back surface of the hollow panel. The embedded nut has a large-diameter head whose outer shape is a non-round shape and a small-diameter leg portion having the screw hole. It is composed of a V-shaped cap nut, and extends in the extrusion direction on the surface of the hollow panel and is narrower than the maximum outer diameter portion of the head portion of the embedded nut and the head portion is a portion other than the maximum outer diameter portion. A groove having a width that can be fitted with is formed, and a through hole is formed through which the bottom of the groove of the hollow panel and the back surface of the hollow panel are opened and penetrated so that the leg portion of the embedded nut can be fitted. Has been The bayonet nut has its legs fitted into the through holes from the surface side of the hollow panel, and the head is fitted into the groove in a rotationally fixed state. A decorative panel for architecture having a hollow portion, which is provided over. 2. The surface material is a decorative plate joined to the surface of the hollow panel with an adhesive, and at least one of the surface of the hollow panel and the back surface of the decorative plate is provided with irregularities. A decorative panel for architecture having a hollow part according to. 3. The hollow part according to claim 2, wherein the top surface of the head of the embedded nut is uneven, and the decorative plate is bonded to the top surface of the head of the embedded nut with an adhesive. Decorative panel for construction having.