JPS636706B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a novel construction method for perfecting the adhesion of decorative decorative boards such as decorative plywood used for the interior of walls of houses etc. using an adhesive. This method was developed with the aim of providing a method for temporarily fixing decorative plywood, etc., by making slight improvements to the gun tacker, which has been widely used for pasting construction laths, ceiling materials, etc.

As is well known, printed plywood, veneer plywood, and other decorative decorative boards are used to decorate the interior walls of houses, and their construction is mainly done by pasting and fixing them to the frame edges with adhesive. Adhesives usually have low initial adhesion strength and must be kept in a pressed state for a certain period of time after being pasted. For this reason, a common method is to drive a thin nail into the adhesive to temporarily hold it in place, and then pull it out after the adhesive is completed. be. The temporary nails used in the conventional temporary fixing method used to be temporarily fixed by placing the cut end of the plywood on the decorative plywood and driving a thin nail from above, but recently Temporary pegs, in which soft synthetic resin chips are attached to the top of the board, became widely used, and the adhesive work of decorative plywood was dramatically improved. This construction method was filed by the present inventor in 1972 and was patented as Patent No. 870627.

After that, the technology of temporary nailing has progressed from hand-hammering to machine-hammering, but since it takes time and effort to attach the elastic material to each nail and the elastic material is large, it is difficult to load the nails into the gun tack car. There remain inconveniences such as the limited number of temporary nails, and above all, there is the disadvantage of having to use a gun tack car specifically for temporary nailing.

The present invention was completed as a result of various studies aimed at further rationalizing the temporary fixing method, and focused on the use of gun tackers and U-shaped staples for temporary fixing, which have been widely used for lathing. It was discovered that the present adhesive construction method could be used with a slight modification of the gun tattu car. In other words, a U-shaped staple is used as it is or partially modified to be used as a temporary nail, and a shielding plate on which one needle of the U-shaped staple is bent is installed on the driving head of a normal gun tacker, and the other half of the U-shaped staple is fixed. The present invention is characterized in that only the needles penetrate the decorative decorative board and are driven into the trim, etc. to temporarily fix the staples, and after the adhesive has solidified, the driven U-shaped staples are removed.

The construction method of the present invention will be explained specifically and in detail below with reference to the drawings.

FIG. 1 is a sectional view of the staple being driven by a gun tacker, FIG. 2 is a sectional view of the staple being driven in and pulled out, and FIGS. 3A and 3B are sectional views of staples of other shapes. FIG. 4 is a sectional view showing the driving state of a conventional temporary nail.

In Fig. 1, the decorative plywood 1 is pasted to the trunk rim 3 etc. via an adhesive layer 2. At this time, as shown in Fig. 4, conventionally, thin nails 4 are made of soft synthetic resin. It was used by driving a temporary nail into which the elastic material 5 was held. In the construction method of the present invention,
Commercially available U-shaped staple 11 used for lath pasting, etc.
I am trying to use a gun tack car loaded with the staple, but if I hit it on one side of the decorative plywood and drive it, the two needles on the left and right will stick into the plywood, making it impossible to remove the staple without damaging the decorative plywood surface. is extremely difficult and impractical. Therefore, we modified it so that it would provide a sufficient temporary fixing effect during pouring and be easily removed after the adhesive hardened, making it more practical.

FIG. 1 shows an example of this, in which a shielding plate 9 is provided on the bottom driving head of the head cover 7 of the gun tacker 6 so that the single needle of the U-shaped staple 11 is bent when it is driven by the hammer 8. It was done. When driven with such a gun tatcher, the two needle portions of the U-shaped staple 11 become a driving needle 12 and a bending needle 13, and are driven into the decorative plywood 1 as shown in FIG. The adhesive layer 2 is temporarily fixed. The bending needle 13 has a protruding shape on the surface of the decorative plywood as shown in the figure, so it can be easily pulled out with pliers or the like as shown by the arrow in Fig. 2.
It can be removed successively as shown by the dotted chain line. Therefore, the surface of the decorative plywood will not be damaged.

FIGS. 3A and 3B show an example of an improved staple that eliminates the inconvenience caused when the staple legs of the staple 11 are longer than the staple spacing, and also makes it easier to bend. That is, in A, the bending needle 13 is made shorter than the driving needle 12, and in B, the bending needle 13 is shortened and the tip is slightly curved inward to form a curved part 14, and the driving needle 13 is made shorter than the driving needle 12. At times, the upper side of the staple is raised further, making it possible to pick it up and remove it without having to pull it up as shown in Figure 2.

In the above example, the bending needle 13 is bent to the inside of the staple, but by changing the shape of the shielding plate 9, it can be bent outward as well, and can be used in the same manner as described above. Further, by applying a resin coating to the staples, there is an advantage that even if the staples come into contact with the surface of the decorative plywood, they will not cause any damage.

This construction method as detailed above provides a number of excellent effects listed below, making it a highly practical adhesive construction method for decorative plywood.

(1) The construction cost is dramatically lower because the gun stapler, which is often used for lathing, etc., is only slightly modified or the attachment is added. (2) The staples, which are often used for lathing, etc., can be used as they are. Since it is a staple that can be used and can be obtained with only a slight improvement, the unit price of the nail can be dramatically reduced as described above.

(3) As with lath tensioning, a large number of staples can be loaded into the gun tatcher at once, resulting in extremely high work efficiency.

(4) Staples that are slightly thinner than conventional temporary nails can be used, so the scars after removal are less noticeable.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view when a staple is driven by a gun tacker, FIG. 2 is a cross-sectional view showing a staple driving state and a staple pulling state, and FIGS. 3A and 3B are cross-sectional views showing staples of other shapes. FIG. 4 is a sectional view showing the driving state of a conventional temporary nail. DESCRIPTION OF SYMBOLS 1...Decorative plywood, 2...Adhesive layer, 3...Brim, 6...Guntatsuker, 9...Shielding plate, 11...
... U-shaped staple, 12 ... Driving needle, 13 ...
Bent needle, 14... curved part.

Claims (1)

[Claims] 1. A shielding plate in which one needle of a U-shaped staple is bent into the driving head of a gun tacker that uses U-shaped staples when fixing a decorative decorative board such as decorative plywood to a wall surface such as a rim using an adhesive. Then, only the other needle of the U-shaped staple penetrates the decorative decorative board and is temporarily fixed using a gun tatker that can be driven to the edge etc., and after the adhesive hardens, the U-shaped staple that has been set is A method for adhering decorative decorative boards to walls, which is characterized by removing staples.