JP7496764B2 - Corner member for frame corner and method of using same - Google Patents

Description

The present invention relates to a corner component for a protruding corner of a stile used at the corner of a stile in an entrance hall and a method for using the corner component.

A frame is a decorative material that acts as a divider between the dirt floor and the wall finishing materials at the entrance, and in the construction example shown in Figure 1, an opening 2 is formed that continues into the dirt floor 1 and can be used as a storeroom for storing bicycles, tricycles, strollers, outdoor equipment, etc., and frame 4, 4 is installed at each of the protruding corners of the walls (gypsum boards) 3, 3 that face each other across the opening 2. The top surfaces of the frame 4, 4 are installed so that they are approximately the same height as the top surface of the upper frame 5, and in order to achieve uniformity in design, frames of the same material and appearance are often used for these.

The frames 4, 4 are made by attaching a decorative material such as veneer or decorative sheet to the outer surface of a core material such as laminated lumber or wood fiberboard, and their tips are cut at 45 degrees and installed at right angles to the protruding corner of the wall 3. In this case, a corner member 10 for the protruding corner of the frame 4, 4 as described in Patent Document 1 is sometimes used to hide the joints and gaps that occur in the protruding corner to improve the appearance and to prevent injury when a person bumps into it or damage when an object bumps into it.

This corner member 10 for the protruding corner of the stile generally has a shape as shown in FIG. 10, and has a thin vertical piece 10a having a length dimension approximately equal to the height of the stiles 4, 4, an upper cover portion 10b that protrudes perpendicularly on both sides from the upper end edge of the vertical piece 10a to cover the upper surface of the stiles 4, 4 at the protruding corner, and a corner cover portion 10c that protrudes perpendicularly on both sides from the front end edge of the vertical piece 10a to cover the front surface of the stiles 4, 4 at the protruding corner. The outer surfaces of the upper cover portion 10b and the corner cover portion 10c are curved. An arbitrary number of double-sided tapes are provided at arbitrary locations on both sides of the vertical piece 10a, and during construction, the release paper is peeled off to expose the adhesive layer, and the tip surface of the stiles 4, 4 cut at 45 degrees is pressed against the adhesive layer to join them.

Design Registration No. 1547211

In the construction example shown in FIG. 1, vertical frames 6, 6 are installed at the corners of the walls 3, 3 on both sides of the opening 2. The vertical frames 6, 6 are installed to decorate the wall corners or to allow a door (not shown) to be opened and closed, but there are cases where the vertical frames 6, 6 are not installed. The corner member 10 for the stile corner can be formed to approximately match the length (diagonal length) of the tip surface cut at 45 degrees of the stile 4, 4, assuming that the vertical frames 6, 6 are not installed. However, when the vertical frames 6, 6 are installed, the upper end including the upper cover portion 10a must be cut off to prevent interference with the vertical frames 6, 6 in advance in order to butt the lower surface of the vertical frames 6, 6 closely against the upper surface of the stile 4, 4.

However, in the conventional corner member 10 for attaching a stile, as shown in Figure 10, the upper cover portion 10a is formed continuously over the entire width along the upper edge of the vertical piece 10a. Therefore, unless the upper end of the vertical piece 10a is also cut at the same time, the upper cover portion 10a cannot be separated from the vertical piece 10a, and installation of the vertical frames 7, 7 requires a great deal of effort and time.

Therefore, the problem that this invention aims to solve is to provide a corner member for a frame protruding corner of a new configuration that allows the upper end, including the upper cover, to be easily removed, and can significantly reduce the construction labor and work time required when installing a vertical frame.

In order to solve this problem, the invention of claim 1 of this application is a corner component for a protruding corner of a frame used at the corner of a frame in an entrance hall, which comprises a thin vertical piece sandwiched between the left and right frames, an upper cover part that protrudes perpendicularly on both sides from the upper edge of the vertical piece to cover the top surface of the protruding corner of the frame, and a corner cover part that protrudes perpendicularly on both sides from the front edge of the vertical piece to cover the front surface of the protruding corner of the frame, and is characterized in that a slit that opens to the rear edge of the vertical piece is formed in the upper part of the vertical piece near the upper cover part and extends in the length direction of the upper cover part.

The invention of claim 2 of this application is characterized in that in the corner member for a frame corner as described in claim 1, the slit is formed from the front edge of the vertical piece to a position that does not reach the corner cover, and there is a remaining portion of the vertical piece between the tip of the slit and the corner cover.

The invention according to claim 3 of this application is characterized in that in the corner member for a frame corner as described in claim 1 or 2, the slit is formed at a position away from the upper edge of the vertical piece, and there is a remaining portion of the vertical piece between the slit and the upper cover portion.

The invention of claim 4 of this application is characterized in that in the corner member for a frame protruding corner described in any one of claims 1 to 3, the horizontal length of the slit is at least √2 times the thickness of the vertical frame placed on the frame.

The invention of claim 5 of this application is a method of using a corner member for a protruding corner of a frame as described in any one of claims 1 to 4 when placing a vertical frame on the frame at the protruding corner of the frame, characterized in that the rear end portion of the upper cover is cut off over a length of at least √2 times the thickness of the vertical frame, and the vertical piece of the corner member for a protruding corner of a frame after this cutting is sandwiched between the cut end faces of the frame at the protruding corner, and the frame is butted together and fixed to the wall base material.

By using the corner member for protruding frame corners of the present invention, when constructing a protruding corner at an entranceway, the joints and gaps between the frames are covered by the top cover and corner cover of the corner member for protruding frame corners, resulting in a good-looking finish and preventing injuries when people bump into it or damage when objects bump into it.

In addition, in the corner member for a frame protruding corner according to the present invention, a slit is formed in the upper part of the vertical piece near the upper cover portion, which opens to the rear end edge of the vertical piece and extends in the length direction of the upper cover portion. Since the upper cover portion is separated from the vertical piece by this slit, the rear end portion of the upper cover portion can be easily cut off.

The size (length, width) and shape of the slit are not particularly limited, but the slit can be formed from the front edge of the vertical piece to a position not reaching the corner cover, leaving a remaining portion between the tip of the slit and the corner cover in the vertical piece (claim 2), or the slit can be formed away from the upper edge of the vertical piece, leaving a remaining portion between the slit and the upper cover in the vertical piece (claim 3). According to these embodiments, when the vertical pieces of the corner member for the protruding corner of the stile are placed between the stiles at the protruding corner portion, the remaining portion is sandwiched between the cut surfaces of the tips and held firmly, so that the corner member for the protruding corner of the stile can be held in a stable state without wobbling.

The horizontal length of the slit can be at least √2 times the thickness of the vertical frame to be placed on the stile (Claim 4). According to this embodiment, the upper end including the upper cover above the slit can be removed in advance so as not to interfere with the vertical frame when placing it on the stile (Claim 5), so construction of the vertical frame is not hindered.

FIG. 2 is a perspective view showing an example of construction of an entrance hall in which a corner member for a frame protruding corner according to the present invention (after cutting) is used. FIG. 2 is an enlarged view of part A in FIG. This is an oblique view showing one embodiment of this corner member for a stile protruding corner (before cutting). FIG. 3 is an explanatory diagram sequentially illustrating the work steps for obtaining the construction example of FIG. 1 and FIG. 2 using this corner member for a frame corner projection. FIG. 2 is an enlarged view showing a portion corresponding to part A in FIG. 1 in a construction example in which the vertical frame is omitted. FIG. 5 is an explanatory diagram sequentially explaining the work steps in obtaining the construction example of FIG. 3 using the corner member for a stile protruding corner shown in FIG. 3 and FIG. 4. FIG. 13 is a plan view showing another embodiment of a corner member for a stile protruding corner (before cutting). FIG. 13 is a plan view showing yet another embodiment of a corner member for a stile protruding corner (before cutting). FIG. FIG. 1 is a plan view showing a corner member for a stile protruding corner according to the prior art.

A corner member 10 for attaching a stile protruding corner according to one embodiment of the present invention is shown in Figures 3 and 4. This corner member for attaching a stile protruding corner (hereinafter simply referred to as "corner member") 10 is used at the butt joint (part A in Figure 1) between the stiles 4, 4 in the construction example in Figure 1 already described, and an enlarged view of it is shown in Figure 2.

As mentioned above, in this construction example, an opening 2 is formed next to the dirt floor 1 that can be used as a storeroom for storing bicycles, tricycles, strollers, outdoor equipment, etc., and stiles 4, 4 are installed at the protruding corners of the walls (gypsum boards) 3, 3 facing each other across the opening 2, and vertical frames 6, 6 are installed at the protruding corners of the walls 3, 3 on both sides of the opening 2. The vertical frames 6, 6 are installed in contact with one of the walls 3 that faces the opening 2 at the protruding corners of the walls 3, 3, and their undersides are installed by directly butting against the upper surfaces 4a, 4a of the stiles 4, 4 at the protruding corners, so that the upper cover portions 10b (described later) of the corner members 10 are cut so as not to interfere with the vertical frames 6, 6.

The corner member 10 has a shape basically similar to that of the conventional corner member 10 (Fig. 10), and the same or corresponding parts are given the same reference numerals. That is, the corner member 10 has a thin plate-like vertical piece 10a having a length dimension approximately equal to the height of the stiles 4, 4, an upper cover portion 10b that protrudes perpendicularly from the upper end edge of the vertical piece 10a on both sides to cover the upper surfaces 4a, 4a of the stiles 4, 4 at the protruding corner, and a corner cover portion 10c that protrudes perpendicularly from the front end edge of the vertical piece 10a on both sides to cover the front surfaces 4b, 4b of the stiles 4, 4 at the protruding corner. The outer surfaces of the upper cover portion 10b and the corner cover portion 10c are formed in a curved shape. Reference numeral 11 denotes a double-sided tape that is provided at any position on the vertical piece 10a in any number, and is used for joining by peeling off the release paper to expose the adhesive layer during construction and butting the tip surface (45-degree cut surface) of the stile 4 against it. Although not shown, double-sided tape 11 is also attached to the opposite side of the vertical piece 10.

In this embodiment, the vertical length Lv of the vertical piece 10a of the corner member 10 is approximately the same as the height dimension of the stile 4, and the width Wv of the corner member 10 is approximately the same as the width of the tip surface of the stile 4 cut at 45 degrees, i.e., approximately 1.4 times (=TrX√2) the thickness Tr (Figure 2) of the stile 4. However, if the corner member 10 is not easily removed after being placed between the tip cut surfaces of the stiles 4, 4 and the construction state shown in Figures 1 and 2 is achieved, the vertical length Lv may be made shorter than the height dimension of the stile 4, or the width Wv may be made shorter than the length of the tip surface of the stile 4.

This corner member 10 differs significantly from a conventional corner member 10 (Fig. 10) in that, in the conventional corner member 10, the upper cover portion 10b is formed continuously over the entire width along the upper edge of the vertical piece 10a, whereas in the corner member 10, a slit 12 extending horizontally is formed between the vertical piece 10a and the upper cover portion 10b, and the upper cover portion 10b is separated from the vertical piece 10a via the slit 12. The slit 12 is intended to facilitate the cutting of the upper end portion including the upper cover portion 10b, and there are no limitations on its size (length, width) or shape as long as this can be achieved, and the slit 12 in this embodiment is merely one example.

The slit 12 is preferably formed in close proximity to the upper cover portion 10b in order to facilitate the cutting of the upper end portion, including the upper cover portion 10b, which is separated from the vertical piece 10a, and may be formed so as to overlap the boundary line between the upper cover portion 10b and the vertical piece 10a (see Figure 8). However, in this embodiment, the slit 12 is formed at a position several millimeters (approximately 3 to 5 mm) away from the upper cover portion 10b, taking into consideration the ease of use when cutting off the rear end portion of the upper cover portion 10b with a cutting tool such as nippers or a cutter.

The length Ls of the slit 12 is preferably formed to be approximately the same as or greater than the length of the portion to be cut out later. In this embodiment, the upper cover portion 10b needs to be cut out so as not to interfere with the vertical frame 6 when it is placed on the upper surface 4a of the attachment frame 4, so the cut-out dimension of the upper cover portion 10b is approximately 1.4 times the thickness Tf of the vertical frame 6 (Tfx√2), and therefore Ls ≧ Tfx√2 must be satisfied, and the slit is formed by cutting deeply from the side edge of the vertical piece 10a opposite the corner cover portion 10c until its tip is close to the corner cover portion 10c.

The tip of the slit 12 does not reach the corner cover portion 10c, and a portion 10d remains between the tip of the slit 12 and the corner cover portion 10c in the vertical piece 10a. The slit 12 is formed at a position away from the upper edge of the vertical piece 10a (the boundary between the vertical piece 10a and the upper cover portion 10b), and a portion 10e remains between the slit 12 and the upper cover portion 10b in the vertical piece 10a. By forming the slit 12 at such a position, when the vertical piece 10a of the corner member 10 is placed between the attachment frames 4, 4 at the wall corner portion, the remaining portions 10d, 10e are sandwiched between the tip cut surfaces 4a, 4a (described later) and firmly held, thereby playing a role in holding the corner member 10 in a stable state without wobbling.

The width (height dimension) Ws of the slit 12 is not particularly limited, but it is preferable to keep it at a width that allows the vertical piece 10a to maintain the required strength. If the strength of the vertical piece is excessively reduced, after the corner member 10 is installed, there is a risk that the cut upper cover portion 10b (which is placed on the upper surface 4a of the frame 4 at the protruding corner portion) may wobble or break when it comes into contact with a human hand or an object, so it is preferable to ensure a strength that can avoid this.

In the corner member 10 of this embodiment, the vertical piece 10a is cut out from the side edge opposite the corner covering portion 10c to form the notch 13. By forming the notch 13, the amount of material for the corner member 10 can be reduced to reduce costs, but it is preferable to limit the size of the notch 13 so that the vertical piece 10a has sufficient strength to prevent breakage when the cut upper covering portion 10b or corner covering portion 10c comes into contact with a human hand or an object after the corner member 10 is installed. The formation of the notch 13 is optional, and when the notch 13 is formed, its shape is not limited and may be any shape.

The corner member 10 is preferably integrally formed from synthetic resin from the standpoint of ease of cutting, but materials such as wood, rubber, and metal may also be used as long as the upper cover portion 10b can be cut.

The use and working process of this corner member 10 will be explained with reference to Figure 5. First, as shown in Figure 5(a), the tips of the stiles 4, 4 are each cut at 45 degrees, and as shown in Figure 5(b), the portion of the corner member 10 above the slit 12 is cut away so as not to interfere with the vertical frame 6 when it is placed on the top surface 4a of the stile 4. As mentioned above, the cut-out dimension of the upper cover portion 10b is approximately 1.4 times (Tfx√2) or more the thickness Tf of the vertical frame 6, and the shaded portion 14 in the left diagram of Figure 5(b) is cut away, resulting in the state shown in the right diagram of Figure 5(b) after the cut-out.

After going through the above preparation process, the release paper is peeled off the double-sided tape 11 attached to one side of the vertical piece 10a of the corner member 10 to expose the adhesive layer, and the corner member 10 is then attached by pressing the adhesive layer against the cut end surface 4c of one of the attachment frames 4 (the attachment frame 4 shown in the figure as extending in the vertical direction).

As shown in FIG. 5(c), the frame 4 with the corner member 10 attached to the end cut surface 4c is fixed to a wall base material 7 such as a stud or abutment on one wall surface that constitutes the protruding corner by an appropriate means such as a combination of glue and nails, and then the release paper is peeled off from the double-sided tape 11 attached to the other side of the vertical piece 10a of the corner member 10 to expose the adhesive layer. The other frame 4 is then slid along the wall base material 7 in the direction of the protruding corner, and the end cut surface 4c is pressed against the other side of the vertical piece 10a of the corner member 10, attaching the frame 4 to the corner member 10 by pressing it against the adhesive layer, and similarly fixed to the wall base material 7 by an appropriate means such as a combination of glue and nails. As a result, the frame 4, 4 are fixed in the protruding corner in a butted state with the vertical piece 10a of the corner member 10 sandwiched between their end cut surfaces 4c, 4c.

Next, as shown in Figure 5(d), gypsum boards 3 are attached to the wall base material 7 in the upper areas of the stiles 4, 4 on both wall surfaces that make up the protruding corner, and then a vertical frame 6 is placed on the upper surface 4a of the stile 4 attached to the wall surface facing the opening 2 and fixed to the wall base material 7 by an appropriate means such as the use of glue and nails, resulting in the construction state shown in Figures 1 and 2. Since the upper cover portion 10b of the corner member 10 has already had the portion 14 where the vertical frame 6 is placed on the stile upper surface 4a cut out in the process shown in Figure 5(b), it does not interfere with the vertical frame 6 and there is no hindrance to construction when the lower surface of the vertical frame 6 is butted against the upper surface 4a of the stile 4. In addition, in this installed state, the joints or gaps between the stiles 4, 4 at the protruding corners are covered by the upper cover portion 10b and the corner cover portion 10c of the corner member 10, resulting in a good appearance and preventing injury when a person or object collides with the structure.

Next, the work process for obtaining the construction state (Fig. 6) in which the vertical frames 6, 6 are omitted will be described with reference to Fig. 7. First, as shown in Fig. 7(a), the tips of the stiles 4, 4 are each cut at 45 degrees, and as shown in Fig. 7(b), the portion above the slit 12 of the corner member 10 is cut away so as not to interfere with the gypsum board 3 when attaching it above the stile 4. In this case, a portion 15 equivalent to approximately 1.4 times (Tpx√2) the thickness Tp of the gypsum board 3 is cut away, and after the cutting, the state shown in the right diagram of Fig. 7(b) is obtained.

After going through the above preparation process, the release paper is peeled off the double-sided tape 11 attached to one side of the vertical piece 10a of the corner member 10 to expose the adhesive layer, and the corner member 10 is then attached by pressing the adhesive layer against the cut end surface 4c of one of the attachment frames 4 (the attachment frame 4 shown in the figure as extending in the vertical direction).

In this way, the frame 4 with the corner member 10 attached to the tip cut surface 4c is fixed, and then the other frame 4 is fixed. This process is shown in Figure 7(c), but since it is the same as the process in Figure 5(c) described above, a description of it will be omitted.

Next, as shown in FIG. 7(d), gypsum boards 3 are attached to the wall base material 7 in the upper regions of the stiles 4, 4 on both wall surfaces that make up the protruding corner, resulting in the construction state shown in FIG. 6. The upper cover portion 10b of the corner member 10 does not interfere with the gypsum board 3 and does not impede the construction of the gypsum board 3, since the portion 15 where the gypsum board 3 is attached above the stile 4 has already been cut away in the process shown in FIG. 7(b). In addition, in this construction state, the joints or gaps between the stiles 4, 4 at the protruding corner are covered by the upper cover portion 10b and the corner cover portion 10c of the corner member 10, resulting in a good appearance and preventing injury when a person bumps into them or damage when an object bumps into them.

The upper cover portion 10b of the corner member 10 shown in Figures 3 and 4 protrudes slightly from the rear edge 10f of the vertical piece 10a, which has a width Wv (=TrX√2) equivalent to approximately 1.4 times the thickness Tr of the stile 4. This shape is because the mold used to manufacture other members (such as a cap joint member) with a similar shape is also used to manufacture the corner member 10. For this reason, whether the gypsum boards 3, 3 are used for the finish (Figure 6) or the vertical frame 7 is installed on top of them (Figure 2), it is necessary to cut off the upper parts 14, 15 from the slit 12 including the upper cover portion 10b before use. However, if the corner member 10 is formed to have a shape as shown in the right diagram of Figure 7(b), when the gypsum boards 3, 3 are used for the finish (Figure 6), the cutting process of Figure 7(b) is not required, and the stile installation process of Figure 7(c) can be proceeded to as is.

Figure 8 shows a corner member 10 according to another embodiment of the present invention, which has a shape and configuration similar to that of the corner member 10 shown in Figures 2 and 3, but differs in that the slit 12 is formed so as to overlap the boundary line between the upper cover portion 10b and the vertical piece 10a, the width of the slit 12 is small, and therefore the remaining portion 10d between the tip of the slit 12 and the corner cover portion 10c is relatively large, the cutout portion 13 is relatively small, and double-sided tape 11 is also provided below the cutout portion 13. A corner member 10 having such a shape is also within the scope of the present invention.

Figure 9 shows a corner member 10 according to yet another embodiment of the present invention, which has a shape and configuration similar to that of the corner member 10 shown in Figures 2 and 3, but differs in that the slit 12 is formed so that the opening width gradually decreases from the opening at the rear end edge 10f of the vertical piece 10a toward the corner covering portion 10c, and therefore the remaining portion 10d left between the tip of the slit 12 and the corner covering portion 10c is formed in an approximately triangular shape. A corner member 10 having such a shape is also within the scope of the present invention.

Although several embodiments of the present invention have been described above in detail with reference to the drawings, the present invention is not limited to these, and can be implemented with a wide variety of modifications and changes within the scope of the invention as defined by the claims. In the above-described embodiments, when cutting off the portions 14 (left diagram of FIG. 5(b)) and 15 (left diagram of FIG. 7(b)) including the upper cover portion 10b above the slit 12 of the corner member 10, the cut is simply made on a vertical plane, but the cut surface of the upper cover portion 10b may be cut in a V-shaped cross section so that it follows two faces at the protruding corner portion of the vertical frame 6 (FIG. 5(d)) and wall base material 7 (FIG. 7(d)).

1 Entrance 2 Opening 3 Wall (plasterboard)
4 Attachment frame 4a Top surface 4b Front surface 4c Cut end surface 5 Upper frame 6 Vertical frame 7 Wall base material 10 Attachment frame corner member 10a Vertical piece 10b Top cover portion 10c Corner cover portion 10d Remaining portion between slit and corner cover portion 10e Remaining portion between slit and top cover portion 10f Rear end edge of vertical piece 11 Double-sided tape 12 Slit 13 Cutout portion 14 Cut-out portion (when installing a vertical frame)
15 Cut-out portion (when no vertical frame is installed)

Claims (5)

A corner component for a protruding corner of a stile used at the entrance of a building, the corner component for a protruding corner of a stile has a thin vertical piece sandwiched between the left and right stiles, an upper cover part that protrudes perpendicularly on both sides from the upper edge of the vertical piece to cover the top surface of the protruding corner of the stile, and a corner cover part that protrudes perpendicularly on both sides from the front edge of the vertical piece to cover the front surface of the protruding corner of the stile, and a slit that opens to the rear edge of the vertical piece is formed in the upper part of the vertical piece near the upper cover part and extends in the length direction of the upper cover part. A corner member for a stile protruding corner as described in claim 1, characterized in that the slit is formed from the front edge of the vertical piece to a position not reaching the corner cover, and there is a remaining portion of the vertical piece between the tip of the slit and the corner cover. A corner member for a stile protruding corner according to claim 1 or 2, characterized in that the slit is formed at a position away from the upper edge of the vertical piece, and there is a remaining portion of the vertical piece between the slit and the upper cover portion. A corner member for a stile protruding corner according to any one of claims 1 to 3, characterized in that the horizontal length of the slit is at least √2 times the thickness of the vertical frame placed on the stile. A method of using the corner member for protruding corners of stiles described in any one of claims 1 to 4 when placing a vertical frame on the stile at the protruding corner of the stile and installing it, characterized in that the rear end portion of the upper cover is cut off over a length of at least √2 times the thickness of the vertical frame, and the vertical piece of the corner member for protruding corners of stiles after this cutting is sandwiched between the cut end faces of the stiles at the protruding corner, and the stiles are butted together and fixed to the wall base material.