JPH0419189Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a frame material corner joining device for joining hollow or semi-hollow frame materials at the corners.

[Prior Art] In the construction of curtain walls, bay windows, corner sashes, etc., hollow or semi-hollow frame materials are used to assemble openings into which shoji screens, glass plates, panels, etc. are to be built. In particular, the opening corners are joined to the frame member with their longitudinal ends butted against each other. For this joining, generally an L with a corner shape is used.
After fitting the two ends into the longitudinal ends of the frame material, the joint hardware and the corresponding frame material are screwed together with the two frames butted against each other.

On the other hand, a joint hardware that is divided into two parts at the butt portion of two frame members is disclosed in Japanese Utility Model Publication No. 55-39105 and Japanese Utility Model Publication No. 61-15196.

[The problem that the idea attempts to solve]

In corner joining using L-shaped joint hardware, it is difficult to butt the ends of the frame members completely without any gaps. This is due to cutting errors in the frame material, etc., but conventionally, the gap has been filled with a wet coating material to prevent water leakage. However, as the coating material deteriorates over time, conventional joint hardware is not sufficient as a leakage prevention measure.

Further, even if the butts are perfectly matched, gaps are likely to occur due to distortion of the frame material, etc., and this combined with the deterioration of the coating material makes it impossible to take complete measures against water leakage.

On the other hand, the joining method using the two-piece joint hardware described in each of the above-mentioned publications is preferable because it has the advantage that the butt can be made relatively unaffected by the dimensional accuracy of the butt frame materials, especially the joint surfaces. Further, as shown in Japanese Utility Model Publication No. 15196/1980, it is desirable to interpose a waterproof sheet on the abutting surfaces, since sealing performance can be maintained for a long time.

In the case of the technique described in Japanese Utility Model Publication No. 15196/1980, the pressure to press against the waterproof sheet is generated by inserting a screw into the joint surface at an angle of 45 degrees.

However, the pressure force is not sufficient, and since the pressure force acts on the waterproof sheet at a 45-degree angle, it tends to act on a portion of the sheet area, which actually reduces the sealing performance of the joint surface. This is a contributing factor.

Therefore, the problem of the present invention is to prevent the generation of gaps that can cause water leakage at the joints of the frame materials to be joined, and to improve the sealing performance by applying pressure to the entire plate-shaped sealing material. .

[Means to solve the problem]

The above-mentioned problem is a frame material in which a joint hardware forming a corner is fitted into the longitudinal ends of two hollow or semi-hollow frames, and the longitudinal ends are screwed to the joint hardware at the joining corner. In the corner joining device, the joint hardware is constituted by a unit joint hardware that is divided into two at the seam of the longitudinal end and has a slanted wall having a joint end face parallel to the seam, and at least a A plate sealing material covering the eyes is interposed, and both unit joint hardware are bolted inside the frame material, and the body and head are connected to the bolted position of the slanted wall of one of the joint hardware on the plane passing through the two frame members. The head of the keyhole is larger than the head of the bolt and the body is smaller, and a female thread is formed to correspond to the inclined wall of the other joint metal fitting. This problem can be solved by forming operating holes for inserting bolt fasteners at one wall of the unit joint hardware on the extension of the axis and at the outer wall of the frame into which the unit joint hardware is inserted.

[Effect]

In this invention, each joint hardware is fitted to the target frame material in advance and secured with screws so that when the longitudinal ends of the frame materials are butted together at the corners, a slight gap will be created between the joint end surfaces of the joint hardware. put. Next, a plate-shaped sealing material is inserted between the joints of the longitudinal ends, and bolts are fastened inside the frame member until tension is generated between the two joint hardware.

Due to the above-mentioned bolt fastening, a large tensile force is generated between the metal fittings, and the reaction force causes the joint between the longitudinal ends to be pressed together without any gaps. In addition, the pressing force from the bolt perpendicular to the plate-shaped sealing material interposed at the seam acts on the plate-shaped sealing material, and compared to the above-mentioned publication example, a stronger and more uniform pressing force acts on the entire area of the sealing material, It will demonstrate excellent water leakage prevention function over a long period of time.

In addition, an operation hole for inserting a bolt fastener is provided at one side of the unit joint hardware wall on the extension of the axis of the through hole of the fastening bolt, and at the outer wall position of the frame material into which this unit joint hardware is inserted. By forming the bolts, it is possible to easily perform bolt fastening from the outside.

Furthermore, in the present invention, a plate-shaped sealing material is interposed between the inclined walls. In this case, since each inclined wall and the plate-shaped sealing material are fitted into the frame material, inserting their fastening bolts from outside the frame material is inferior in terms of workability. Therefore, a keyhole-shaped through hole was formed at the bolt fastening position of the slanted wall of one of the joint hardware, and the head of the keyhole was made larger than the head of the bolt. By making the body small, the bolts are loosely screwed into the other joint hardware through the plate-shaped sealing material in advance, and then one frame member is attached to the other frame with one joint hardware inserted. Butt against the material. At this time, since the head of the through hole is larger than the head of the bolt, both frame members can be butted against each other. Next, move one of the frame members along the mating surface so that the body of the through hole fits relatively to the body of the bolt, then insert a wrench through the operation hole and tighten the bolt. This allows both inclined walls to be brought into close contact with each other via the plate-shaped sealing material.

Therefore, when a plate-shaped sealing material is used, crimping can be reliably performed by both inclined walls with a simple operation.

〔Example〕

Examples will be described below with reference to the drawings.

The example is the curtain wall shown in Figure 6.
This is an example of joining a 90 degree corner C in CW. In this corner C, the blind T supporting the glass plate G is butt-jointed by the corner joining device according to the present invention.

Details of the apparatus are shown in FIGS. 1-5. First, to explain the two frame members 1 and 2 that are butt-joined, both have the same cross-sectional shape, but for convenience of explanation, one is labeled as the first and the other as the second. The first frame material 1 has upper, lower and inner parts, as shown in FIG.
It is formed hollow by the outer walls 1a to 1d, and plate glass G is fitted above and below the outer wall 1d.
Glass fitting grooves 1e and 1f are formed respectively. As often seen in this type of frame material, a plurality of bis pockets 1h, . . . are formed on the upper and lower inner walls 1a, 1b of the hollow portion 1g.

In this embodiment, since the first and second frame members 1 and 2 are butt-joined at an angle of 90°, the longitudinal ends 1i and 2i of both frame members 1 and 2 are bent at a 45° angle as shown in FIG.
It is cut at an angle of

Conventionally, the frame members 1 and 2 were joined using L-shaped joint hardware, but the present invention is an alternative to this, and the unit joint hardware 3 and 4 are connected as shown in FIG. Longitudinal end 1 where two frame members 1 and 2 are joined
It is divided into two at seam A of i and 2i.

Both joint fittings 3 and 4 are symmetrical about the seam A and are formed to have approximately the same shape, but there are some differences.
A first is attached to the joint hardware 3 that fits into the first frame material 1,
A second mark is attached to the joint hardware 4 that fits into the second frame member 2 to distinguish it.

First, to explain the outline, the first and second
The joint hardware 3 and 4 are respectively the first and second frame members 1,
After the screws 5, .

In the embodiment, the upper, lower, inner and outer walls 3c to 3
f, 4c to 4f, the interior is hollow, and bolts can be fastened within the first and second joint hardware 3, 4, and the external shape in the longitudinal direction constituted by the walls is at least the hollow portions 1g, 2g. It is formed to a size that fits into the Hollow part 1
g, 2g do not necessarily need to be tightly fitted, but in the embodiment, the inner and outer walls 3e, 3f, 4e, 4f are fitted with the inner and outer walls 3e, 3f, 4e, 4f of the frame members 1, 2 for positioning when screwing. It is adapted to contact the outer walls 1c, 1d, 2c, and 2d. However, since there is a risk that the walls may come into close contact with each other, in the embodiment, the side surfaces 3e, 3
A plurality of ribs 3g, . . . 4g are provided on f, 4e, 4f to avoid close contact. Also, inside the hollow part, like the frame members 1 and 2, there are a plurality of bis pockets 3h,
..., 4h, ... are provided protrudingly.

Next, the bolt fastening portions will be explained. In the embodiment, as shown in FIG. 1, the bolt fastening portions are fastened at two locations on the inclined walls 3a and 3b, one on the indoor side and one on the outdoor side. To tighten the bolts, screw the bolts 6, 6 from the slanted wall 3a of the first joint hardware 3 to the slant wall 4a of the second joint hardware 4, and press the slanted wall 3a of the first joint hardware 3 with the bolt heads 6a, 6a. I'm going.

However, the first frame member 1 is completely hollow, and it is generally difficult to drill a hole the size of a bolt head and insert and screw the bolts 6 from the outside. Therefore, in this embodiment, the bolts 6, 6 can be fastened without having to insert the bolts 6, 6 from the outside.

The structure will be explained below. As shown in FIG. 3, the inclined wall 3a of the first joint hardware 3 has
A head through hole 3 with the size of the bolt head 6a is adjacent to the fastening position.
Body through holes 3j, 3j having a width larger than the diameter of the threaded portion 6b are formed at the fastening position so as to overlap the through holes 3i, 3i and the through holes 3i, 3i, respectively. Therefore, the overall shape is a keyhole shape. The direction of the keyhole is along the plane through which the head through hole 3i and the body through hole 3j pass, that is, the plane through which the two frame members pass, in other words, along the surface of FIG. 1. Furthermore, it also runs along the plane passing through the bolts 6, 6.

As shown in FIG. 4, the threaded portion 6b of the bolt 6 is attached to the inclined wall 4a of the other second joint hardware 4 at the fastening position.
Female screws 4j, 4j for screwing in are opened.
In order to perform the bolt fastening operation when the longitudinal ends 1i and 2i butt together, the first frame material and the first joint hardware 3 are placed on the extension line of the fastening position as shown in FIGS. 1 and 2. Operation holes 1k, 1k, and 3k into which a tool such as a wrench can be inserted are respectively formed.

In the present invention, the plate-shaped sealing material 7 is sandwiched between the seams A during joining, and the plate-shaped sealing material 7 maintains airtightness between the longitudinal ends 1i and 2i cut at 45 degrees. Therefore, it is sufficient that the size is at least large enough to cover seam A. For example, the shape of the plate-shaped sealing material 7 can be changed to the shape shown in FIG. 5 by taking the contours of the longitudinal ends 1i, 2i seen in FIG. 2.

Next, how to use the corner joining device according to the present invention will be explained. First, the first and second joint fittings 3 and 4 are individually fitted into the frame members 1 and 2, so that the respective joint end surfaces 2b and 4b are connected to the longitudinal end 1.
Insert it into the first and second frame members 1 and 2 until it is at a position deeper than i and 2i, and then tighten with screws 5, as shown in FIG.

Thereafter, the plate-shaped sealing material 7 is placed over the joint end surface 4b of the second joint hardware 4, and the bolts 6, 6 are screwed into the female threads 4j,
4j. The bolt heads 6a, 6a are the first
The first and second frame members 1 and 2 are butted together so that they are inserted into the head through holes 3i and 3i of the joint hardware 3, and then a hex wrench is inserted into the first joint hardware 3 through the operation holes 1k and 3k.
into the hollow part of the bolt, and loosen until the bolt head 6a comes out of the through hole 3i. After that, the first and second frame members 1,
The first or second frame members 1 and 2 are moved in a predetermined direction so that the longitudinal ends 1i and 2i of the frames 1 and 2 meet at seam A. At this time, the threaded portions 6b, 6b of the bolts 6, 6 screwed into the female threads 4j, 4j are inserted into the through holes 3i, 3i.
It moves further and enters the trunk through-holes 3j, 3j. Next, tighten the bolts 6, 6 with the wrench 4 until tension is generated. The operation holes 1k, 1k are then sealed as necessary.

Therefore, in this embodiment, there is no need to insert a bolt from the outside, and the joint can be joined without any gaps.

In this invention, the frame material is not an integral hollow object;
A part of the wall of the cross section may be divided, and the wall may be later screwed together to form a frame member that is sealed as a cross section.

Further, the present invention can also be implemented at corners other than 90° corners.

[Effect of idea]

As explained above, according to the present invention, since the longitudinal ends of the frame material are pressed together with bolts, cutting errors of the frame material can be absorbed and discarded, and the generation of gaps can be prevented.

Furthermore, since a plate-shaped sealing material is interposed at the seam, stronger water leakage prevention can be achieved.

Moreover, since the fastening bolts are not visible from the outside, the aesthetic appearance is not spoiled.

[Brief explanation of drawings]

Fig. 1 is a horizontal sectional view showing an embodiment of the present invention, Fig. 2 is a - sectional view of Fig. 1, Fig. 3 is a view taken along arrow D in Fig. 5 is a plan view of a plate-shaped sealing material, and FIG. 6 is a schematic diagram of a curtain wall to which the present invention is applied. 1, 2...frame material, 1i, 2i...longitudinal end,
3, 4...Unit joint hardware, 3i...Head through hole, 3
j... Body through hole, 5... Screw, 6... Bolt, 7
...Plate sealing material, 9...nut, A...joint.

Claims (1)

[Claims for Utility Model Registration] A joint hardware forming a corner is fitted into the longitudinal ends of two hollow or semi-hollow frames, and the longitudinal ends are screwed to the joint hardware at the joint corners. In the corner joining device for frame materials, the joint hardware is constituted by a unit joint hardware that is divided into two at the seam of the longitudinal end and has an inclined wall having a joint end face parallel to the seam, A plate sealing material that covers at least the seam is interposed between them, and both unit joint hardware are bolted inside the frame material, and a bolt is attached to the plane passing through the two frame members at the bolt fastening position of the slanted wall of one of the joint hardware. A keyhole-shaped through hole is formed along which the part and the head are aligned, and the head of the keyhole is larger than the head of the bolt, and the body is smaller, and a female thread is formed to correspond to the slanted wall of the other joint metal fitting. An operation hole for inserting a bolt fastener is formed at one of the unit joint hardware wall positions on the extension line of the axis of the through-hole and at the outer wall position of the frame material into which the unit joint hardware is inserted. A corner joining device for frame materials.