JPH0123639B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a small and simple press-fixing metal fitting mainly used for attaching and fixing building parts such as sash partitions during construction.

Conventionally, for example, in mounting and fixing aluminum sash (1)
Driving satsushi anchors, (2) Marking after dismantling formwork
(3) Inserting the wedge and hanging the sash (4) Welding the sash to the anchor (5) Filling the area around the sash with mortar (6) Removing the wedge (7) Filling the wedge trace with mortar (8) Around the sash Plastering Finishing (9) The process of caulking (9) is also required, which is time-consuming and requires skill.Furthermore, the mortar filled in the wedge marks tends to crack and has poor water-stopping properties.

The present invention aims to eliminate these inconveniences and to provide a versatile, small and simple press fixing fitting.The present invention is characterized by having a bendable and extensible fitting at the left and right ends of the upper surface of the substrate. The left side plate and the right side plate are rotatably connected at their lower ends, and outwardly curved protrusions are formed at the upper ends of these side plates, and these protrusions are formed at both ends of the pressing plate. Connectors are loosely fitted into the through holes and connected to intermediate portions of the left and right side plates to shorten the distance between these intermediate portions, and the tips of the projecting pieces protruding from the through holes are connected to shorten the distance. Due to the expansion of the left and right side plates, the left and right side plates are formed into recessed portions that extend obliquely outward and bite into the pressurized surface of the member to be fixed.

Next, one implementation of the present invention will be explained with reference to FIGS. 1 to 3.

Reference numeral 1 denotes a substrate, and the substrate 1 is a rectangular metal plate with notches cut in the left and right ends and bent upward to form locking protrusions 1a, 1a, and elongated holes are formed in these protrusions 1a, 1a. 1b, respectively. Furthermore, a bolt hole 1c for an anchor bolt was formed in the center of the metal plate.

Reference numeral 2 denotes a pressing plate, which is made of a rectangular metal plate having rectangular through holes 2a, 2a at both ends of the pressing plate 2 and a screw hole 2b in the center.

3, 3 indicate left and right side plates, each of these side plates 3 is composed of a first member 3a and a second member 3b, and the first
The plate member 3a has a protruding piece 3c slightly curved outward at one end.
and a rectangular metal plate each having a protrusion 3d slightly bent outward at the other end, and the second
The plate member 3b is slightly bent inward at one end and has an insertion hole 3e.
It is composed of a rectangular metal plate having a protruding piece 3f having a shape and a protruding piece 3g slightly bent inward at the other end,
The protrusions 3d of the first plate member 3a were loosely fitted into the insertion holes 3e of the second plate member 3b, so that the left and right side plates 3 were formed to be bendable. Further, bolt holes 3h, 3h, through which bolts 4a (described later) are inserted, were formed at one end of the second plate members 3b, 3b, respectively. Furthermore, each of the protrusions 3c
A triangular blade or serrated bit 3i is formed at the tip.

Reference numeral 4 denotes a connecting tool, and the connecting tool 4 consists of a longitudinal bolt 4a and a nut 4b. Further, 5 indicates a set screw, and the head 5a of the set screw is formed into a spire shape.

Next, mounting and fixing of the sash using the metal fittings of the above embodiment will be explained.

The process of driving satsushi anchors and marking after dismantling the formwork is the same as in the conventional case.

Next, in advance, the substrate 1, the pressing plate 2, the left and right side plates 3,
3, each protruding piece 3c, 3 as shown by the arrow in Fig. 1.
d and 3g into the holes 2a, 3e, and 1b, respectively, and the bolts 4a into the bolt holes 3h, 3h of the second plate members 3b, 3b to attach the nuts 4b, and assemble the metal fittings as shown in Fig. 2. I'll keep it. At this time, the set screw 5 is fixed to the pressing plate 2. Then, the cut-in portions 3i, 3i at the upper ends of the side plates 3, 3 of the metal fittings are engaged with the peripheral protrusions 7a, 7a of the sash 7, which is the member to be fixed, as shown by the dotted lines in Figure 3, and the metal fittings are contracted. Attach an appropriate number of them to the top, bottom, left and right side edges of the sash 7. Next, after these metal fittings are attached, the sash 7 is suspended in the opening in the concrete, and then nuts 4b are tightened on each metal fitting, and the metal fittings are extended as shown in solid lines and fixed to the opening with anchor bolts 8. By stretching the metal fittings, each of the first plate members 3a of the left and right side plates 3, 3 moves upward a little, and the biting part 3i at the tip and the steeple-shaped head 5a of the set screw 5 are brought into contact with the pressurized surface 7b of the sash 7. In this way, the sash 7 is firmly fixed without shifting its position. In this way, the sash 7 is fixed to the opening from four directions: top, bottom, right and left, using these metal fittings.

Construction is then completed by filling around the sash, plastering around the sash, and caulking.

Therefore, the conventional construction steps of inserting a wedge, welding and fixing the sash, removing the wedge, and filling the wedge trace with mortar are no longer necessary, which greatly reduces labor and work efficiency. Also, it becomes unnecessary to fill the wedge marks with mortar, thus improving water-stopping properties. Furthermore, a substrate 1, a pressing plate 2, and side plates 3, 3 that constitute the metal fittings
Since it is a single piece made by punching, mass production is possible and it can be obtained at a low price.

In the above embodiment, the side plate 3 is composed of two plate members, but the invention is not limited to this. For example, as shown in the fourth figure, it may be one plate member with a groove 3 in the middle.
It is optional, such as forming a groove 3j and making the groove 3j flexible. Also side plates 3, 3
and both ends of the substrate 1 may be connected from the beginning with a hinge or the like, unlike the above embodiment. In addition to the bolt 4a and nut 4b in the above embodiment, the connector 4 is also connected to the side plate 3, by rotating the bolt 4c and opposing pressing parts 4d and 4e, as shown in FIG.
The distance between the intermediate portions of 3 may be shortened. Further, as shown in FIG. 6, a locking piece 6 is rotatably attached to the pressing plate 2 with a set screw 5, and the locking piece 6 is rotated as shown by the arrow to lock the locking portions 6a, 6 at both ends thereof.
a may be engaged with the peripheral protrusions 7a, 7a of the sash 7 to further ensure the attachment of the metal fittings to the sash 7.

As described above, according to the present invention, the left and right side plates are expanded by the connecting tool, and with the expansion, the pressing plate moves upward to press the pressurized surface of the fixed member, and the upper end biting portion of the side plate also moves obliquely outward. Since it penetrates into the pressure-contact surface, it is possible to firmly attach and fix the member to be fixed, such as a sash made of aluminum, wood, or synthetic resin, and as mentioned above, the number of steps in installing and fixing the sash can be reduced. It not only significantly improves work efficiency, but also improves water-stopping properties, and is also versatile and can be applied to prevent furniture from falling during disasters such as earthquakes.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one example of the metal fitting of the present invention in an exploded state, Fig. 2 is a perspective view of its assembled state, Fig. 3 is a front view of its usage state, and Fig. 4 is a front view of the side plate of another example. 5 is a plan view of another example of the connector, and FIG. 6 is a perspective view of the vicinity of the pressing plate of still another example. 1...Substrate, 2...Press plate, 2a, 2a...Through hole, 3, 3...Side plate, 3c, 3c...Protrusion piece, 3
i, 3i...biting part, 4...connecting tool, 7...fixed member, 7b...pressure contact surface.

Claims (1)

[Claims] 1 At the left and right ends of the top surface of the board, a doglegged left side plate and an inverted doglegged right side plate, which are flexible at the middle, are rotatably connected at their lower ends, and an outwardly curved protrusion is provided at the upper end of these side plates. These projecting pieces are loosely fitted into through-holes formed at both ends of the pressing plate, and a connector for shortening the distance between these intermediate parts is connected to the middle part of the left and right side plates, and each of the above-mentioned The tips of the protrusions protruding from the through holes are formed into biting portions that extend obliquely outward and bite into the pressurized surface of the fixed member due to the expansion of the left and right side plates as the distance shortens. A press fixing fitting characterized by: