JPH056332Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a fastener for a curtain wall, and more specifically to a bracket for attaching a mullion to a frame.

(Prior art) Curtain wall fasteners are used to fasten the curtain wall main body to the building frame.The fasteners have the ability to support the curtain wall's own weight, withstand earthquakes and wind pressure, and also have the ability to follow interstory displacement and temperature resistance. It is required to have the ability to absorb dimensional errors in the frame, product, and installation without restricting expansion and contraction due to changes.

In order to deal with these complex performance requirements, for example, as in Japanese Patent Publication No. 62-29573, a secondary fastener and a bracket are installed between the primary fastener and the curtain wall body, and the fastener is pre-embedded or welded into the building frame. An angled secondary fastener is fixed to the primary fastener with bolts, and the bolt insertion hole of the secondary fastener is inserted in three directions, that is, in the direction of entry and exit on the mullion side, and for the purpose of adjusting dimensional errors.
A slide fastener is disclosed in which elongated holes are formed in the vertical direction of a vertical plane, and elongated holes are formed in the horizontal direction for the bolt insertion holes of the bracket that are screwed into the secondary fastener.

The structure of the mullion type fastener is that the upper end of the mullion is fixed with the fastener, and the lower end of the mullion is inserted into the lower mullion, and expansion and contraction of the mullion due to thermal expansion and changes is absorbed by sliding this part.

In addition, all wind pressure received by the panel or glass wall is transmitted to the fastener through the mullions, and seismic forces are normally absorbed by the sliding of the mullion joints and the deformation of the mullions themselves. As mentioned above, dimensional errors in the frame, product, and installation were adjusted by drilling long holes in the fasteners when screwing them together.

(Problem to be solved by the invention) In the former technique, the fastener part is bolted so that it can slide, and a metal plate or resin packing material is sandwiched in the part where it should slide, and the bolt is tightened so that it can slide. Although the insertion hole is a long hole, the bolts must be tightened while adjusting the mounting position, which requires a lot of effort and effort to manage and adjust the tightening force.

In the latter case, the interlayer displacement is absorbed by the sliding of the mullion joint and the deformation of the mullion itself, which has the disadvantage of putting a strain on the glass wall surface, etc.

Also, like the former, bolts are inserted into various long holes provided for error adjustment in three directions and tightened with nuts, but since tightening is performed while adjusting in each direction, adjustment and tightening are easy. It required a lot of effort.

(Means for Solving the Problem) The present invention was made to solve the above-mentioned problem, and a secondary fastener is fixed on a primary fastener that is fixed to the building frame, and the secondary fastener is attached to the secondary fastener. In a curtain wall mounting bracket in which a mullion member is erected via a screwing bracket,
A guide member having a vertically elongated through hole on a square plate surface and a convex rail portion on the upper and lower end surfaces of the plate body, and screwed onto the secondary fastener via a washer; and the rail. The present invention provides a curtain wall mounting bracket comprising a mounting member which is loosely fitted and slidably held in a groove portion and is screwed onto the mullion member.

(Example) Hereinafter, the configuration of the present invention will be explained based on the drawings.

Fig. 1 shows an exploded perspective view of one embodiment of the present invention with some parts omitted, Fig. 2 is a schematic front view showing the structure of the curtain wall, and Fig. 3 is an A of Fig. 2.
-A sectional view, and FIG. 4 shows a BB side sectional view of FIG.

An L-shaped fastener 2 having bolt holes 3 on the left and right sides is provided on a primary fastener 2 which is fixed in advance to the building frame 1.
A secondary fastener 4 is fixed to the front of the frame 1, that is, at a position slightly protruding toward the outside of the room, and a mullion member 6 of a paneled curtain wall 26 is erected on the secondary fastener via a bracket 5 . The bracket is composed of a guide member 8 which is fixed to the secondary fastener 4 via a washer 7, and a mounting member 9 which grips the guide member and screws the mullion member 6 to support it.

The guide member 8 has an elongated hole 11 that penetrates above and below the center of the square plate surface and into which the bolt 10 is inserted, and a rail part 12 that is convex in the left-right direction is cut on the upper and lower end surfaces of the square plate body. Furthermore, an uneven surface 13 of lateral grooves is cut into the front surface of the body in a sawtooth shape.

The washer 7 interposed between the guide member 8 and the secondary fastener 4 has a notch 14 having a concave shape through which the bolt 10 is inserted. A washer 17 having an uneven surface 15 with sawtooth horizontal grooves that engage with the uneven surface 13 of the secondary fastener and a hole 16 formed in the center through which the bolt 10 is inserted is arranged. The bolt 10, which is inserted through the notch 14 of the
Next, the guide member 8 is fixed to the fastener 4.

On the other hand, the mounting member 9, which is screwed onto and supported by the mullion member 6, has a U-shaped opening toward the rear, and a groove into which the rail portion 12 of the guide member 8 is loosely fitted on the tip edge side of the upper and lower surfaces inside the opening. 19 is cut, and bolt holes 20 are provided on the upper and lower sides of the rear side, and a glass plate 21 is pasted to the mullion member 6 with a structural sealant 22, and the mullion member is made into a panel. It overlaps with the hole 23 on the 6th side, inserts the bolt 24, and tightens it with the nut 25 to integrate.

The depth and length of the mounting member 9, which has a U-shaped opening, is cut out to a space large enough to screw the nut 18 into the tip of the bolt 10, which is inserted through the hole 11 of the guide member and the hole 16 of the washer. The engagement position between the hole 23 on the side surface of the upright member and the bolt hole 20 of the attachment member is such that the side surface of the mullion member 6 that is screwed onto the attachment member 9 may interfere with the sliding of the attachment member 9, which will be described later. Avoid hitting the tip.

The installation order and its effects will be explained below.

A glass plate 21 is attached to the framework of the mullion member 6 etc. to form a panel, and the mullion member 6 and the mounting member 9 are integrally attached to the upper side of the mullion member 6 by tightening nuts 25 to bolts 24. The panel is then carried to the construction site in this state, hooks (not shown) are hooked to the mounting members fixed to both sides of the panel, hoisted to a predetermined position, and aligned with the upper end of the mullion member 6 installed on the lower level. After that, the rail parts 12 provided above and below the guide member 8 are inserted into the groove part 19 of the mounting member 9,
The bolt hole 3 of the secondary fastener 4 and the hole 11 of the guide member 8 are overlapped, the bolt 10 is inserted, the washer 17 is inserted into the tip of the bolt, and the nut 18 is lightly tightened. 4, insert a plurality of washers 7 into the bolt 10 from the opening side of the notch 14, and then tighten the nut 18 again. You can adjust it by changing the thickness of 7.

The installation error in the vertical position of the guide member 8 is absorbed by the long hole of the hole 11, but the gap between the hole 11 and the bolt 10 due to the long hole is created by the uneven surface 13 of the guide member and the uneven surface 15 of the washer. By tightening the bolts, the secondary fastener will not sink below the height of the bolt hole 3 due to its own weight or vibration.

The groove portions 19 cut on the top and bottom of the mounting member 9 grip the guide member 8 by fitting the rail portions 12 disposed on the top and bottom of the guide member 8, and the fitting is in a loose fitting state. It is possible to slide along the rail portion 12, and by this sliding, it is possible to adjust and absorb errors in the left and right directions.

That is, in the vertical direction in the hole 11 of the guide member,
The thickness of the washer 7 makes it easy to adjust in the front and back directions, and the sliding of the mounting member 9 allows for easy adjustment in three directions, including the left and right directions.
In addition, adjustment can be made by tightening only one bolt 10, and there is no need to perform hole machining or the like for on-site adjustment.

Furthermore, the inter-story displacement caused by an earthquake is automatically absorbed by the freely sliding mounting member 9. All you need to do is add the mounting member 9.
will not fall off from the rail portion 12.

If necessary, stoppers may be properly fixed to the ends of the rail portion 12, or may be attached to both ends of the curtain wall 26, for example.

(Effects of the invention) The guide member of the present invention, which is fixed to the frame side, has a simple structure and can be easily adjusted in the vertical and longitudinal directions, and the mounting member integrated with the mullion member is the guide member which is fixed to the frame side. By gripping the mullion through the rail part and allowing it to slide freely along the rail part, it is possible to support the mullion member while adjusting it in the left and right directions, and adjustment movement in three directions can be easily performed. The practical effect is extremely large, as it also absorbs the follow-up of interlayer displacement.

[Brief explanation of drawings]

Fig. 1 shows an exploded perspective view of one embodiment of the present invention with some parts omitted, Fig. 2 is a schematic front view showing the structure of the curtain wall, and Fig. 3 is an A of Fig. 2.
-A sectional view, and FIG. 4 shows a BB side sectional view of FIG. 1...Structure, 2...Primary fastener, 4...2
Next fastener, 5 ... bracket, 6... mullion member, 7... washer, 8... guide member, 9...
...Mounting member, 11...Hole, 12...Rail part, 19...Groove, 26 ...Curtain wall.

Claims (1)

[Scope of utility model registration request] In a curtain wall mounting bracket in which a secondary fastener 4 is fixed on a primary fastener 2 fixed to a building frame 1, and a mullion member 6 is erected via a bracket 5 screwed onto the secondary fastener, corner A guide is provided with a hole 11 that is elongated and passes through the plate surface in the vertical direction, and a convex rail portion 12 on the top and bottom end surfaces of the plate body, and is screwed onto the secondary fastener 4 via a washer 7. member 8;
A curtain wall mounting bracket comprising a mounting member 9 which loosely fits and slidably holds the rail portion 12 in a groove portion 19 and is screwed onto the mullion member 6.