JP2540389Y2 - Opening frame mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a mounting device for mounting an opening frame such as a window frame to a concrete slab.

[Conventional technology]

A window in a concrete building is integrally attached with an opening frame made of, for example, an aluminum alloy manufactured by extrusion molding into a concrete opening, and glass or a shoji is inserted into the opening frame. It is formed.

In recent years, concrete buildings have been replaced with a precast concrete slab (hereafter referred to as a PC slab) manufactured at a factory to fit into the wall of a building or the like, instead of the conventional site casting method due to demands for streamlining and labor saving of construction. Is becoming mainstream. Therefore, a method has been adopted in which the opening frame material is also embedded in the PC plate in advance at the factory stage.

However, in this case, when the opening frame material is integrally attached to the PC plate, separation may occur due to a difference in thermal expansion between the two, which may cause water leakage or falling off.

Several means for solving this problem have been disclosed. For example, a device disclosed in Japanese Utility Model Publication No. 59-22236 will be described with reference to FIGS. 3 and 4. FIG. FIG. 3 shows a mounting state diagram of the PC plate, and FIG.
It is a principal part longitudinal cross-sectional view of a figure.

As shown in FIG. 3, the PC plate 20 is a rectangular plate-like body, in which a rectangular opening is also formed.
An opening frame 21 is attached to the inner peripheral surface of the opening, and glass G is fitted into the opening frame 21. As shown in FIG. 4, the opening frame 21 is
An inverted T-shaped piece 21a and a locking piece 21b extending from the PC board 20 are embedded and fixed integrally.

In the preceding example, the inverted T-shaped piece 21a and the locking piece 21b embedded in the PC plate 20 are formed discontinuously at predetermined intervals along the periphery of the opening frame member 21 to form an opening. The thermal expansion of the frame material 21 is absorbed and alleviated to improve the conformity with the PC plate 20 and prevent peeling due to distortion.

[Problems to be solved by the invention]

However, even in the above-mentioned prior example, even if the buried portion of the opening frame material is discontinuous, since the opening frame material is fixed integrally to the PC plate, it is possible to avoid the adverse effect of thermal deformation due to the difference in expansion coefficient. In addition, the opening frame material cannot follow a curved deformation due to drying shrinkage, creep, etc. of the PC plate.

Therefore, an object of the present invention is to provide a mounting device for an opening frame that can remove the adverse effect of thermal deformation due to a difference in expansion coefficient and can follow the curved deformation of a PC plate.

[Means for solving the problem]

The object is to provide a substrate, a buried piece formed integrally with the substrate and buried in a concrete plate, and formed to be open on the opening surface side of the substrate, and to be spaced apart in the expected direction and extend in the finding direction. A base frame having at least two engagement pockets; an engagement piece formed at a position corresponding to each of the engagement pockets and protruding toward the base frame, and a through hole through which a bolt shaft penetrates. The first engagement pocket has a lip piece protruding in a prospective direction at an entrance thereof, and the engagement piece is inserted into the first pocket from the entrance and moves in the prospective direction. The head of an engagement bolt is engaged with the second engagement pocket, and a shaft portion of the engagement bolt passes through the through-hole, and is engaged with the nut by a nut. An opening frame material is sandwiched, and the opening frame material is the base frame. Can be solved by being fixed so as to be movable in the longitudinal direction of the frame member.

[Action]

In the present invention, in order to attach the opening frame material to the concrete slab, a base frame integrally fixed to the opening surface of the concrete slab is provided. A buried piece buried in the concrete slab is formed integrally with the base frame. The buried piece becomes an anchor when buried in concrete.

The substrate is formed with at least two engagement pockets that are open on the opening surface side and that are spaced in the expected direction and extend in the finding direction.

On the other hand, in the opening frame member, at a position corresponding to each of the engagement pockets, an engagement piece protruding toward the base frame side and a through hole through which a shaft portion of the bolt passes are formed.

The first engagement pocket has a lip piece projecting in a prospective direction at an entrance thereof, and the engaging piece is inserted into the first pocket from the entrance and moved in the prospective direction, and the lip piece is moved in the prospective direction. And a head of an engagement bolt is engaged with the second engagement pocket, and a shaft portion of the engagement bolt penetrates the through hole, and clamps the opening frame material with a nut. I have.

Thus, the opening frame member is fixed to the base frame so as to be movable in the longitudinal direction of the frame member.

Therefore, for example, when the opening frame material thermally expands, the extension of the opening frame material is not restrained by the base frame, so that no thermal stress is generated in the opening frame material. At the same time
Since no reactive restraint stress acts on the PC plate, there is no fear of peeling or the like caused by this.

On the other hand, since the mounting is performed at least at two positions in the expected direction, the opening frame member can be stably fixed, and the mounting is performed by the engagement of the engagement pieces, the engagement of the head of the engagement bolt, and the fastening of the nut. Since the method of attaching the opening frame member to the base frame will be described in an embodiment described later, the attachment is extremely simple.

Also, when the concrete member is a thin plate like a PC plate, it may bend in a curved shape due to the effects of drying shrinkage, creep, and the like. It can slide and follow the curved deformation.

The concrete slabs of the present invention include both precast concrete slabs and concrete slabs cast in place.

[Specific configuration of the device]

Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 is a longitudinal sectional view of a main part of the mounting device for an opening frame material according to the present invention (a view taken along a line II in FIG. 2), and FIG.
FIG. 4 is a view from the outside of the room in the attached state of the device of the present invention.

As shown in FIG. 2, the upper PC plate 1A and the lower PC plate 1B form a horizontally long opening, into which the glass G is fitted to form a horizontal window. When attaching the opening frame members 3A and 3B of the horizontal window, the attachment device of the present invention is employed.

A base frame 2 is embedded and fixed integrally on the opening side of the upper PC plate 1A. The base frame 2 is composed of a substrate 2c and a buried piece 2a, which are continuous along a direction penetrating the paper surface, and further has a first engagement pocket 2b and a second engagement pocket 2b which are opened on the opening side of the substrate 2c. The engagement pocket 2d is also formed continuously. The base frame 2 is a PC at the factory stage.
It is used together as a formwork material during plate placement and is integrally fixed. The tips of the embedded pieces 2a,... Are enlarged in a semicircular shape, and are formed at an acute angle with respect to the substrate 2c, thereby firmly fixing the embedded pieces 2a to the upper PC plate 1A.

The number of the embedded pieces 2a is not particularly limited. However, if the number is too large, the cast concrete may not be sufficiently filled between the buried pieces 2a,..., And the number is appropriately determined.

An opening frame member 3A is engaged with the base frame 2.
The opening frame member 3A is provided with an L-shaped engaging piece 3a that is continuous in the longitudinal direction of the opening frame member for engaging with the first engagement pocket 2b, and is attached to the second engagement pocket 2d. There is provided a through hole 3b through which the screw portion of the engaging bolt 5 passes. The engagement between the L-shaped engagement piece 3a and the first engagement pocket 2b of the base frame 2 is performed such that the L-shaped engagement piece 3a is engaged with the lip piece of the first engagement pocket 2b, Further, a slight gap P is formed on both sides of the web of the L-shaped engaging piece 3a so as to follow thermal deformation of the opening frame member 3A in the indoor / outward direction.

In order to facilitate attachment of the opening frame member 3A to the base frame 2, the through hole 3b of the opening frame member 3A is elongated in the indoor and outdoor directions, and the first engagement pocket The opening width of 2b is slightly larger than the width of the L-shaped engaging piece 3a. Therefore, when attaching the opening frame member 3A, the L of the opening frame member 3A is located at the position of the opening of the first engagement pocket 2b.
The L-shaped engaging piece 3a is moved upward as it is by adjusting the position of the L-shaped engaging piece 3a.
2b, and a screw portion of an engagement bolt 5 described later can be passed through the through-hole 3b, and then, in that state, the opening frame member 3A is laterally moved to the outdoor side. The engagement with the base frame 2 is performed.

On the other hand, as for the second engaging pocket 2d, the head of the engaging bolt 5 is previously engaged with the second engaging pocket 2d, and the shaft of the engaging bolt 5 passes through the through hole 3b. Then, the nut 6 is fastened to clamp the opening frame member 3A, and the opening frame member 3A is fixed to the base frame 2. The fastening force of the nut 6 is, for example, when the opening frame member 3A is expanded due to thermal expansion.
Needs to move together with the opening frame material 3A,
It is tightened not too strong and not too loose. When the nut 6 is fastened, the washer 7 formed with saw teeth on the side of the contact surface with the opening frame member 3A prevents the nut 6 from loosening.

Since the present invention is configured as described above, even if the opening frame members 3A and 3B thermally expand, their deformation is not restricted by the base frame 2 and the opening frame members 3A and 3B extend freely in the longitudinal direction. No additional stress is applied to the frame materials 3A and 3B, and the PC version
Even if 1A and 1B are curvedly deformed by creep or the like, the opening frame members 3A and 3B can be deformed following the deformation of the PC plates 1A and 1B.

By the way, the number of engagement points between the opening frame member 3A and the base frame 2 is two in the case of the present embodiment, but the number of engagement points is not particularly limited. In addition, the second
The reason why the head of the engaging bolt 5 was engaged with the engaging pocket 2d and the nut was fixed by the nut 6 was that the opening frame material was used due to an unexpected situation.
This is to ensure that 3A does not fall off. Further, the longitudinal interval between the opening frame members 3A engaged by the engaging bolts 5 is preferably a constant interval to avoid complexity, but the interval is not particularly limited.

On the other hand, the glass G is fixed to the groove formed by the outer piece 3c of the opening frame member 3A and the pressing edge 4 attached to the opening frame member 3A via a glass supporting member.

A groove is formed at the boundary between the opening frame member 3A and the upper PC plate 1A, and the groove is filled with a backup material 8 and a seal 9 to perform watertight treatment.

[Effect of the invention]

As described in detail above, according to the present invention, it is possible to remove the adverse effect of thermal deformation caused by the difference in expansion coefficient,
It can follow the curved deformation of the PC version.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of the mounting device for an opening frame member according to the present invention (a view taken along the line II in FIG. 2), and FIG. 2 is an outdoor state of the mounting device of the present invention in FIG. FIGS. 3 and 4 show a conventional mounting device for an opening frame member. 1A: Upper PC version, 2: Base frame, 3A: Opening frame material, 4: Edge, 5: Engagement bolt, 6, Nut, 7, Washer, G: Glass

Claims (1)

(57) [Scope of request for utility model registration] 1. A board, a buried piece formed integrally with the board and embedded in a concrete plate, and a buried piece formed on the opening side of the board and spaced in a prospective direction and in a finding direction. A base frame having at least two extending engagement pockets, and an engagement piece formed at a position corresponding to each of the engagement pockets and protruding toward the base frame and a through hole through which a bolt shaft penetrates. The first engagement pocket has a lip piece protruding in a prospective direction at an entrance thereof, and the engagement piece is a first lip from the entrance.
The second engagement pocket engages with the head of an engagement bolt, and the head of the engagement bolt is engaged with the second engagement pocket. The opening frame, which penetrates the through hole and clamps the opening frame material with a nut, wherein the opening frame material is fixed to the base frame so as to be movable in a longitudinal direction of the frame material. Mounting device.