JP7553399B2 - Wall covering fixing frame - Google Patents

Description

The present invention relates to a frame material for fixing wall coverings, which is used to attach wall coverings to construction surfaces such as walls and ceilings.

Interior decoration is known in which sheet-like wall coverings such as woven fabrics are applied to the construction surface such as the ceiling or wall surface of a building. This type of interior decoration is performed by attaching a frame for fixing the wall covering to the construction surface and fixing the periphery of the wall covering to the frame for fixing the wall covering. The applicant has proposed a frame for fixing such sheet-like wall coverings, as shown in Patent Documents 1 and 2, for example, which has a synthetic resin fixing plate fixed to the construction surface and a holding part that clamps the edge of the wall covering. The applicant has also proposed a mounting structure for a wall covering panel, as shown in Patent Document 3, which includes a wall covering panel to which the wall covering is fixed, a rail member fixed in a frame shape to the construction surface, and a connecting means for connecting the wall covering panel and the rail member.

Such wall covering fixing frames or rail members are fixed to the construction surface by placing the fixing plate on the construction surface and then driving fastening members such as staples into the fixing plate using a tacker or the like. In particular, U-shaped fastening members consisting of two staple legs and a connecting part connecting their upper ends can simultaneously fix the fixing plate that is in contact with the construction surface at two points, making it less likely for the fixing plate to tilt, and are therefore preferably used on site.

For example, in the wall covering fixing frame material described in Patent Document 1, two longitudinally extending grooves are provided on the surface of the fixing plate to serve as a guide when driving in the U-shaped fastening members. By providing the grooves in this way, not only is it possible to indicate the location where the fastening members will be driven in, but the thickness of the fastening location can be made thinner, preventing the fixing plate from cracking due to the driven needles.

Patent No. 3652613 Patent No. 4789782 Patent No. 5241170

However, when driving a U-shaped fastening member into a fixed plate, after the two needle legs penetrate the fixed plate, the connecting part is also hammered into the fixed plate. Therefore, if the tacker pressure is too high, the fixed plate may crack around the part where the connecting part is hammered into it. On-site, workers make fine adjustments to the tacker pressure while working to prevent such cracking of the fixed plate. Particular care is required when working in cold regions.

The present invention was developed in consideration of these problems, and aims to provide a frame material for fixing wall coverings that has sufficient strength to withstand the installation of U-shaped fastening members.

The wall covering fixing frame of the present invention is a long wall covering fixing frame for attaching a sheet-like wall covering, and is characterized in that it has a synthetic resin fixing plate fixed to a construction surface, a holding part for holding an edge of the wall covering, a rib extending in the longitudinal direction is provided on the surface of the fixing plate, and the ratio of the height of the rib to the thickness of the fixing plate is 0.05 or more and less than 0.4. In the present invention, the construction surface refers to a wall, a ceiling, etc.
In the frame for fixing wall covering material of the present invention, it is preferable that a plurality of the ribs are provided.
In the frame material for fixing wall covering material of the present invention, it is preferable that the cross-sectional shape of the rib has a portion which is more easily deformed than other portions when subjected to an external force in the height direction.
In the frame for fixing wall covering material of the present invention, it is preferable that the fixing plate and the holding portion are integrally formed by extrusion.

The frame material for fixing wall coverings of the present invention has ribs extending in the longitudinal direction on the surface of the fixing plate, so the ribs can be used as a guide for the casting location. Even if a U-shaped fastening member is cast from above the rib of the fixing plate, the rib absorbs the impact on the fixing plate by the connecting part of the fastening member, making the fixing plate less likely to crack. This makes it easy for workers to carry out the work on site.

FIG. 1a is a cross-sectional view showing a part of a state in which a wall covering is attached to a wall surface using the frame for fixing a wall covering of the present invention, and FIG. 1b is an enlarged view showing the relationship between the fastening member and the fixing plate. FIG. 2a is a perspective view of a portion of the first embodiment of the wall covering fastening frame of FIG. 1, FIG. 2b is a cross-sectional view thereof, and FIG. 2c is an enlarged view of a portion of FIG. 2b. Figure 3a is a front view showing the frame material 1 for fixing wall coverings of Figure 1 attached in a frame-like shape to a wall surface, Figure 3b is an enlarged front view showing the frame material 1 for fixing wall coverings attached to a wall surface, and Figure 3c is a front view showing the wall coverings installed. 4a and 4b are enlarged cross-sectional views showing other shapes of ribs that can be used in the first embodiment of the frame for fixing a wall covering of the present invention. 5a and 5b are cross-sectional views showing second and third embodiments of the frame for fixing a wall covering according to the present invention, respectively. FIG. 11 is a photograph showing the example and comparative example after staples have been driven in.

First, a state in which a sheet-like wall covering D is attached to a wall surface W (construction surface) using the wall covering fixing frame 1 of the present invention will be described. Reference symbol U denotes a base material filled between the wall covering D and the wall surface W.
The underside of the fixing plate 10 of the wall covering fixing frame 1 is abutted against the wall surface W, and a U-shaped staple (fastening member) S is driven in, thereby fixing the wall covering fixing frame 1 to the wall surface W. Then, the edge portion D1 of the wall covering D is clamped by the holding portion 20 of the wall covering fixing frame 1, thereby fixing the wall covering D to the wall covering fixing frame 1. In this way, the wall covering fixing frame 1 of the present invention is intended to connect the wall surface W and the wall covering D.
The fastening member S used in the wall covering fixing frame 1 of the present invention is made of metal such as iron, stainless steel, or steel wire. The tip shape of the fastening member S is not particularly limited as long as the needle foot is driven straight in, but examples include a chisel point in the shape of a chisel, a special chisel point with a cut end rotated 90 degrees relative to the chisel point, and a divergent point with the cut ends of both needle feet cut in opposite directions. The wire diameter of the fastening member S is 0.7 mm to 1.6 mm, preferably 1.0 mm to 1.3 mm, and the thickness is 0.5 mm to 1.4 mm, preferably 0.5 mm to 0.8 m. For example, a fastening member with a wire diameter width of 1.2 mm and a thickness of 0.6 mm includes MAX 10J staples. The height of the fastening member S can be appropriately selected according to the construction surface to which it is attached, but is, for example, 5 mm to 30 mm, preferably 8 mm to 25 mm. For example, MAX 10J staples having a height of 13 mm (product number 1013J), a height of 16 mm (product number 1016J), a height of 22 mm (product number 1022J), etc. are preferably used.

Next, the wall covering fixing frame material 1 of the present invention will be described.
As shown in Figures 2a and 2b, the frame material 1 for fixing wall coverings is long and has a fixing plate 10 which is fixed to a wall surface W, and a holding portion 20 which holds an edge portion D1 of the wall covering material D.

The fixed plate 10 has five equally spaced ribs 15 extending in the longitudinal direction formed on the front surface 10a. The back surface 10b is a smooth surface that abuts against the wall surface W.

The cross-sectional shape of the rib 15 is triangular as shown in Fig. 2c, but is not limited thereto.
The number of ribs 15 can be appropriately selected according to the width of the fixed plate 10, and is, for example, 2 to 15, preferably 3 to 8, and particularly preferably 4 to 6. The interval between adjacent ribs 15 may be set so that at least two ribs 15 are accommodated between two needle legs S1 of the U-shaped fastening member S. As shown in FIG. 1b, by driving the fastening member S so that at least two or more ribs 15 are positioned between the two needle legs S1, the connecting portion S2 of the fastening member S can be driven horizontally. In other words, the fastening member S is less likely to tilt.

The lower limit of the rib height H relative to the thickness X of the fixing plate 10 is 0.05 or more, 0.08 or more, and preferably 0.1 or more. On the other hand, the upper limit is less than 0.4, 0.35 or less, and preferably 0.3 or less. If it is less than 0.05, when the fastening member S is driven by a tacker, the rib 15 cannot fully absorb the driving force received from the connecting part S2 of the fastening member, and the fixing plate 10 may crack. If it is more than 0.8, the fixing plate 10 may crack when the needle foot S1 is driven. The thickness X of the fixing plate 10 is, for example, 0.5 to 3 mm, preferably 1 to 2 mm. And the height H of the rib is, for example, 0.1 to 0.5 mm, preferably 0.2 to 0.4 mm.

Examples of the material for the fixed plate 10 include self-extinguishing synthetic resins and flame-retardant synthetic resins, and flame-retardant synthetic resins are preferred. Examples of flame-retardant synthetic resins include vinyl chloride and ABS with added flame retardant.
The Shore D hardness of the fixing plate 10 is 70 to 100, preferably 80 or more, and more preferably 85 or more. If the Shore D hardness is less than 70, the plate is too soft, and the rib 15 is crushed when the fastening member S is driven in by a tacker. On the other hand, if the Shore D hardness is more than 100, the driving force cannot be sufficiently absorbed.

Returning to Figure 2, the retaining portion 20 has an inner wall 21 provided on the outside of the fixed plate 10 in the width direction, an outer wall 22 provided at a predetermined distance from the inner wall 21, and a protrusion portion 23 provided on the outer surface of the inner wall 21.
The ratio of the thickness T1 of the inner wall 21 and the thickness T2 of the outer wall 22 to the thickness X of the fixed plate 10 is 1 to 1.5, preferably 1.2 or less, and 1.1 or less. The inner wall 21 and the outer wall 22 are the parts that support the edge of the wall covering, so it is preferable that they are thick and have high strength. On the other hand, if the ratio of the thickness of the inner wall 21 to the thickness of the fixed plate 10 is greater than 1.5, it becomes difficult to spread the molten synthetic resin throughout the fixed plate 10 when the fixed plate 10 and the holding part 20 are integrally molded by extrusion molding, and productivity decreases.
A flame-retardant synthetic resin is used for the parts other than the protrusions 23 of the holding part 20. In particular, the same synthetic resin as that of the fixing plate 10 is preferably used.

The ridges 23 are elastic and clamp the edge D1 of the wall covering D between their tips and the inner surface of the outer wall 22. The shape of the ridges 23 is not particularly limited, but in this embodiment, they have a first ridge 23a and a second ridge 23b. The first ridge 23a is further divided into two parts, top and bottom, to form a Y-shaped cross section. Providing multiple ridge tips in this manner makes it easier to insert the edge D1 of the wall covering into the retaining portion 20 and ensures sufficient friction.

Materials for the protrusions 23 include elastic synthetic resins or elastic bodies such as rubber. However, as long as the elasticity of the protrusions 23 can be ensured, the same material as the other parts may be used. For example, as long as the first protrusions 23a and the second protrusions 23b are made sufficiently thin to obtain elasticity, they may be made of the same material as the fixing plate 10. Using the same material improves productivity.

The wall covering fixing frame 1 is made by integrally extruding the fixing plate 10 and the holding portion 20. If the material of the protrusion portion 23 is to be different from that of the other portions, two-color extrusion molding is used.

Next, a method of attaching the wall covering material D using the wall covering material fixing frame material 1 will be described.
First, as shown in FIG. 3a, the frame material 1 for fixing wall coverings is fixed to the wall surface W. In FIG. 3a, the symbol C indicates the ceiling, and the symbol F indicates the floor. The frame material 1 for fixing wall coverings is fixed in a frame shape so as to surround a predetermined area of the wall surface W. In FIG. 3a, three upper and lower frames are arranged side by side. The frame material 1 for fixing wall coverings is fixed by abutting the back surface 10b of the fixing plate 10 against the wall surface W, and driving a U-shaped fastening member S from the front surface 10a of the fixing plate 10 as shown in FIG. 3b. The fastening member S is driven so that at least two ribs 15 of the fixing plate 10 are inserted between the needle feet S1, and the connecting portion S2 is approximately perpendicular to the rib 15. By driving in this way, the force of the connecting portion S2 of the fastening member S is absorbed by the rib 15, reducing the impact on the fixing plate 10 itself, and preventing the fixing plate 10 from being dented or cracked. In addition, since the connecting portion S2 is supported by two or more ribs 15, it can be cast in parallel with the wall surface W. The fastening members S are cast in the longitudinal direction of the frame material 1 for fixing a wall covering at a predetermined interval.

After the wall covering fixing frame 1 is fixed to the wall surface W, as shown in Figure 3c, the wall covering D is fixed to the wall covering fixing frame 1. This fixing is performed by inserting the edge portion D1 of the wall covering into the retaining portion 20. Note that Figure 3c shows wall coverings DA and DB of different designs attached in a grid pattern to the wall surface W using the wall covering fixing frame 1. In this way, by using the wall covering fixing frame 1, the wall covering D can be easily attached to the wall surface W.

As described above, the frame material 1 for fixing wall coverings has ribs 15 on the surface 10a of the fixing plate 10, so when the fastening member S is cast, the casting force of the connecting portion S2 of the fastening member is absorbed by the ribs 15, making it difficult for the fixing plate 10 to crack. This eliminates or reduces the need for fine adjustments to the tacker pressure, which was a cumbersome task for on-site workers. In addition, at least two ribs can be interposed between the needle feet S1 of the fastening member S, so the connecting portion S2 can be made horizontal to the wall surface. Furthermore, because the ribs 15 are formed in the longitudinal direction, the strength of the fixing plate 10 can be ensured.

In the above embodiment, the cross-sectional shape of the rib 15 of the wall covering fixing frame material 1 is triangular, but the shape is not particularly limited. However, a cross-sectional shape having a portion that is more easily deformed than other portions when subjected to an external force in the height direction, in other words, a portion that can absorb a force more than other portions when subjected to an external force in the height direction, is preferable. For example, a cross-sectional shape having a portion that absorbs the external force and deforms when subjected to an external force in the height direction is preferable. Examples of such a cross-sectional shape include rib 15a in FIG. 4a and rib 15b in FIG. 4b. Rib 15a in FIG. 4a has a semicircular cross-sectional shape, and the upper portion deforms when subjected to an external force in the height direction. Rib 15b in FIG. 4b has a cross-sectional shape that is rectangular as a whole, and has a narrow width portion 15b1 that is narrow in the approximate center in the height direction. When this rib 15b receives an external force in the height direction, the narrow width portion 15b1 deforms. The cross-sectional shape of the rib is preferably a shape that narrows toward the top, such as a triangular cross-section (Figure 2c) or semicircular cross-section (Figure 4a).

The wall covering fixing frame 2 in Fig. 5a is formed by separately molding a fixing member 50 having a first fixing plate 51 and an inner wall 52, and an exterior wall member 60 having an outer wall 61 and a second fixing plate 62. The first fixing plate 51 is placed on the second fixing plate 62, and is fixed to the construction surface with staples S. A plurality of ribs 15 are formed on the surface of the first fixing plate 51.
As a result of multiple ribs being formed on the surface of the first fixing plate 51, similar to the frame material 1 for fixing wall coverings in Figure 2, the first fixing plate 51 is less likely to crack when staples S are driven in with a stapler.

The wall covering fixing frame 3 in FIG. 5b comprises a wall covering holding member 70, a rail member 80, and connecting means 90 for connecting the wall covering holding member and the rail member.
The wall covering retaining member 70 has a retaining portion 71 for retaining an edge portion D1 of the wall covering D, and has a male connecting portion 91 on the underside.
The rail member 80 has a fixed plate 81 that is fixed to a wall surface (construction surface) and a female connecting portion 92 on the central upper surface of the fixed plate 81. A plurality of ribs 15 are formed on the surfaces of both sides of the fixed plate 81. In other words, fastening members S are driven into both sides of the fixed plate 81.
The connecting means 90 is made up of a male connecting portion 91 and a female connecting portion 92. By connecting these, the wall covering retaining member 70 and the rail member 80 are joined together.

The wall covering fixing frame 3 is formed by assembling the wall covering holding members 70 into a frame shape, and fixing the wall covering to the frame to form a wall covering application panel. Meanwhile, the rail members 80 are fixed to the application surface with staples S. Then, the wall covering D is applied to the wall surface by joining the panel to the rail members 80.
In this case as well, since a plurality of ribs 15 are formed on the surface of the fixed plate 81 of the rail member 80, the rail member is less likely to crack when staples S are driven in with a stapler.

[Example 1]
A wall covering fixing frame 1 made of rigid polyvinyl chloride (PVC) was prepared, having a fixing plate 10 on which five ribs 15 were formed. This is Example 1. The thickness of the fixing plate 10 was 1.5 mm. The cross-sectional shape of the rib 15 was an isosceles triangle with a base width of 0.2 mm and a height of 0.2 mm. In other words, the ratio of the height of the rib to the thickness of the fixing plate in Example 1 was 0.13.

[Example 2]
A 1.5 mm thick rigid polyvinyl chloride fixing plate with nine ribs was prepared. This was designated Example 2. The cross-sectional shape of the ribs was a semicircle with a radius of 0.4 mm. In other words, the ratio of the height of the ribs to the thickness of the fixing plate in Example 2 was 0.27.

[Comparative Example 1]
A frame material made of hard polyvinyl chloride and having a fixing plate with no ribs was prepared. The thickness of the fixing plate 10 was 1.5 mm.
[Comparative Example 2]
A 1.5 mm thick rigid polyvinyl chloride fixing plate was prepared on which nine ribs were formed. The cross-sectional shape of the ribs was a semicircle with a radius of 0.6 mm. In other words, the ratio of the height of the ribs to the thickness of the fixing plate in Comparative Example 2 was 0.4.

The gypsum board that will be the base of the wall is placed on the fixing plates of Examples 1 and 2 and Comparative Examples 1 and 2, and MAX 10J staples (height 13 mm, 1013J) are driven into the surface of the fixing plates using a MAX staple air nailer (Tucker, product number TA-325/10J). Eight of these staples (nine in Comparative Example 2 only) are driven in order from the left. The results are shown in Table 1 and Figure 6.

〇：割れなし、×：割れあり

◯: No cracks, ×: Cracks

The fixing plates of Examples 1 and 2 did not crack. On the other hand, the frame material of Comparative Example 1 collapsed in the area where the staple S was driven in, and cracks occurred around the staple S. In Comparative Example 2, cracks occurred around the penetration area of the needle foot S1 of the staple S. In this way, it was found that the present invention is less likely to crack when staples S are driven in using a stapler.

REFERENCE SIGNS LIST 1 Frame for fixing wall covering 2 Frame for fixing wall covering 3 Frame for fixing wall covering 10 Fixing plate 10a Surface 10b Back surface 15, 15a, 15b Rib 15b1 Narrow width portion 20 Retaining portion 21 Inner wall 22 Outer wall 23 Protrusion portion 23a First protrusion portion 23b Second protrusion portion 50 Fixing member 51 First fixing plate 52 Inner wall 60 Outer wall member 61 Outer wall 62 Second fixing plate 70 Wall covering retaining member 71 Retaining portion 80 Rail member 81 Fixing plate 90 Connecting means 91 Male connecting portion 92 Female connecting portion C Ceiling F Floor D, DA, DB Wall covering D1 Edge portion S Fastening member (staple)
S1 Needle foot S2 Connecting part W Wall surface

Claims (4)

A long wall covering fixing frame material for attaching a sheet-like wall covering material,
A synthetic resin fixing plate fixed to the construction surface;
A holding portion for holding an edge portion of the wall covering material,
A rib extending in a longitudinal direction is provided on a surface of the fixing plate,
The ratio of the height of the rib to the thickness of the fixing plate is 0.05 or more and less than 0.4.
Frame material for fixing wall coverings. A plurality of the ribs are provided.
2. The frame for fixing wall coverings according to claim 1. The cross-sectional shape of the rib has a portion that is more easily deformed than other portions when subjected to an external force in the height direction.
The frame for fixing a wall covering according to claim 1 or 2. The fixing plate and the holding portion are integrally formed.
A frame for fixing wall coverings according to any one of claims 1 to 3.

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